1/*
2 * Copyright (c) 2016-present, Przemyslaw Skibinski, Yann Collet, Facebook, Inc.
3 * All rights reserved.
4 *
5 * This source code is licensed under both the BSD-style license (found in the
6 * LICENSE file in the root directory of this source tree) and the GPLv2 (found
7 * in the COPYING file in the root directory of this source tree).
8 */
9
10
11/* *************************************
12*  Includes
13***************************************/
14#include "util.h"        /* Compiler options, UTIL_GetFileSize, UTIL_sleep */
15#include <stdlib.h>      /* malloc, free */
16#include <string.h>      /* memset */
17#include <stdio.h>       /* fprintf, fopen, ftello64 */
18#include <time.h>        /* clock_t, clock, CLOCKS_PER_SEC */
19#include <ctype.h>       /* toupper */
20#include <errno.h>       /* errno */
21
22#include "timefn.h"      /* UTIL_time_t, UTIL_getTime, UTIL_clockSpanMicro, UTIL_waitForNextTick */
23#include "mem.h"
24#define ZSTD_STATIC_LINKING_ONLY
25#include "zstd.h"
26#include "datagen.h"     /* RDG_genBuffer */
27#include "xxhash.h"
28
29#include "zstd_zlibwrapper.h"
30
31
32
33/*-************************************
34*  Tuning parameters
35**************************************/
36#ifndef ZSTDCLI_CLEVEL_DEFAULT
37#  define ZSTDCLI_CLEVEL_DEFAULT 3
38#endif
39
40
41/*-************************************
42*  Constants
43**************************************/
44#define COMPRESSOR_NAME "Zstandard wrapper for zlib command line interface"
45#ifndef ZSTD_VERSION
46#  define ZSTD_VERSION "v" ZSTD_VERSION_STRING
47#endif
48#define AUTHOR "Yann Collet"
49#define WELCOME_MESSAGE "*** %s %i-bits %s, by %s ***\n", COMPRESSOR_NAME, (int)(sizeof(size_t)*8), ZSTD_VERSION, AUTHOR
50
51#ifndef ZSTD_GIT_COMMIT
52#  define ZSTD_GIT_COMMIT_STRING ""
53#else
54#  define ZSTD_GIT_COMMIT_STRING ZSTD_EXPAND_AND_QUOTE(ZSTD_GIT_COMMIT)
55#endif
56
57#define NBLOOPS               3
58#define TIMELOOP_MICROSEC     1*1000000ULL /* 1 second */
59#define ACTIVEPERIOD_MICROSEC 70*1000000ULL /* 70 seconds */
60#define COOLPERIOD_SEC        10
61
62#define KB *(1 <<10)
63#define MB *(1 <<20)
64#define GB *(1U<<30)
65
66static const size_t maxMemory = (sizeof(size_t)==4)  ?  (2 GB - 64 MB) : (size_t)(1ULL << ((sizeof(size_t)*8)-31));
67
68static U32 g_compressibilityDefault = 50;
69
70
71/* *************************************
72*  console display
73***************************************/
74#define DEFAULT_DISPLAY_LEVEL 2
75#define DISPLAY(...)         fprintf(displayOut, __VA_ARGS__)
76#define DISPLAYLEVEL(l, ...) if (g_displayLevel>=l) { DISPLAY(__VA_ARGS__); }
77static unsigned g_displayLevel = DEFAULT_DISPLAY_LEVEL;   /* 0 : no display;   1: errors;   2 : + result + interaction + warnings;   3 : + progression;   4 : + information */
78static FILE* displayOut;
79
80#define DISPLAYUPDATE(l, ...) if (g_displayLevel>=l) { \
81            if ((clock() - g_time > refreshRate) || (g_displayLevel>=4)) \
82            { g_time = clock(); DISPLAY(__VA_ARGS__); \
83            if (g_displayLevel>=4) fflush(displayOut); } }
84static const clock_t refreshRate = CLOCKS_PER_SEC * 15 / 100;
85static clock_t g_time = 0;
86
87
88/* *************************************
89*  Exceptions
90***************************************/
91#ifndef DEBUG
92#  define DEBUG 0
93#endif
94#define DEBUGOUTPUT(...) { if (DEBUG) DISPLAY(__VA_ARGS__); }
95#define EXM_THROW(error, ...)                                             \
96{                                                                         \
97    DEBUGOUTPUT("Error defined at %s, line %i : \n", __FILE__, __LINE__); \
98    DISPLAYLEVEL(1, "Error %i : ", error);                                \
99    DISPLAYLEVEL(1, __VA_ARGS__);                                         \
100    DISPLAYLEVEL(1, "\n");                                                \
101    exit(error);                                                          \
102}
103
104
105/* *************************************
106*  Benchmark Parameters
107***************************************/
108static unsigned g_nbIterations = NBLOOPS;
109static size_t g_blockSize = 0;
110int g_additionalParam = 0;
111
112void BMK_setNotificationLevel(unsigned level) { g_displayLevel=level; }
113
114void BMK_setAdditionalParam(int additionalParam) { g_additionalParam=additionalParam; }
115
116void BMK_SetNbIterations(unsigned nbLoops)
117{
118    g_nbIterations = nbLoops;
119    DISPLAYLEVEL(3, "- test >= %u seconds per compression / decompression -\n", g_nbIterations);
120}
121
122void BMK_SetBlockSize(size_t blockSize)
123{
124    g_blockSize = blockSize;
125    DISPLAYLEVEL(2, "using blocks of size %u KB \n", (unsigned)(blockSize>>10));
126}
127
128
129/* ********************************************************
130*  Bench functions
131**********************************************************/
132#undef MIN
133#undef MAX
134#define MIN(a,b) ((a)<(b) ? (a) : (b))
135#define MAX(a,b) ((a)>(b) ? (a) : (b))
136
137typedef struct
138{
139    z_const char* srcPtr;
140    size_t srcSize;
141    char*  cPtr;
142    size_t cRoom;
143    size_t cSize;
144    char*  resPtr;
145    size_t resSize;
146} blockParam_t;
147
148typedef enum { BMK_ZSTD, BMK_ZSTD_STREAM, BMK_ZLIB, BMK_ZWRAP_ZLIB, BMK_ZWRAP_ZSTD, BMK_ZLIB_REUSE, BMK_ZWRAP_ZLIB_REUSE, BMK_ZWRAP_ZSTD_REUSE } BMK_compressor;
149
150
151static int BMK_benchMem(z_const void* srcBuffer, size_t srcSize,
152                        const char* displayName, int cLevel,
153                        const size_t* fileSizes, U32 nbFiles,
154                        const void* dictBuffer, size_t dictBufferSize, BMK_compressor compressor)
155{
156    size_t const blockSize = (g_blockSize>=32 ? g_blockSize : srcSize) + (!srcSize) /* avoid div by 0 */ ;
157    size_t const avgSize = MIN(g_blockSize, (srcSize / nbFiles));
158    U32 const maxNbBlocks = (U32) ((srcSize + (blockSize-1)) / blockSize) + nbFiles;
159    blockParam_t* const blockTable = (blockParam_t*) malloc(maxNbBlocks * sizeof(blockParam_t));
160    size_t const maxCompressedSize = ZSTD_compressBound(srcSize) + (maxNbBlocks * 1024);   /* add some room for safety */
161    void* const compressedBuffer = malloc(maxCompressedSize);
162    void* const resultBuffer = malloc(srcSize);
163    ZSTD_CCtx* const ctx = ZSTD_createCCtx();
164    ZSTD_DCtx* const dctx = ZSTD_createDCtx();
165    U32 nbBlocks;
166
167    /* checks */
168    if (!compressedBuffer || !resultBuffer || !blockTable || !ctx || !dctx)
169        EXM_THROW(31, "allocation error : not enough memory");
170
171    /* init */
172    if (strlen(displayName)>17) displayName += strlen(displayName)-17;   /* can only display 17 characters */
173
174    /* Init blockTable data */
175    {   z_const char* srcPtr = (z_const char*)srcBuffer;
176        char* cPtr = (char*)compressedBuffer;
177        char* resPtr = (char*)resultBuffer;
178        U32 fileNb;
179        for (nbBlocks=0, fileNb=0; fileNb<nbFiles; fileNb++) {
180            size_t remaining = fileSizes[fileNb];
181            U32 const nbBlocksforThisFile = (U32)((remaining + (blockSize-1)) / blockSize);
182            U32 const blockEnd = nbBlocks + nbBlocksforThisFile;
183            for ( ; nbBlocks<blockEnd; nbBlocks++) {
184                size_t const thisBlockSize = MIN(remaining, blockSize);
185                blockTable[nbBlocks].srcPtr = srcPtr;
186                blockTable[nbBlocks].cPtr = cPtr;
187                blockTable[nbBlocks].resPtr = resPtr;
188                blockTable[nbBlocks].srcSize = thisBlockSize;
189                blockTable[nbBlocks].cRoom = ZSTD_compressBound(thisBlockSize);
190                srcPtr += thisBlockSize;
191                cPtr += blockTable[nbBlocks].cRoom;
192                resPtr += thisBlockSize;
193                remaining -= thisBlockSize;
194    }   }   }
195
196    /* warming up memory */
197    RDG_genBuffer(compressedBuffer, maxCompressedSize, 0.10, 0.50, 1);
198
199    /* Bench */
200    {   U64 fastestC = (U64)(-1LL), fastestD = (U64)(-1LL);
201        U64 const crcOrig = XXH64(srcBuffer, srcSize, 0);
202        UTIL_time_t coolTime;
203        U64 const maxTime = (g_nbIterations * TIMELOOP_MICROSEC) + 100;
204        U64 totalCTime=0, totalDTime=0;
205        U32 cCompleted=0, dCompleted=0;
206#       define NB_MARKS 4
207        const char* const marks[NB_MARKS] = { " |", " /", " =",  "\\" };
208        U32 markNb = 0;
209        size_t cSize = 0;
210        double ratio = 0.;
211
212        coolTime = UTIL_getTime();
213        DISPLAYLEVEL(2, "\r%79s\r", "");
214        while (!cCompleted | !dCompleted) {
215            UTIL_time_t clockStart;
216            U64 clockLoop = g_nbIterations ? TIMELOOP_MICROSEC : 1;
217
218            /* overheat protection */
219            if (UTIL_clockSpanMicro(coolTime) > ACTIVEPERIOD_MICROSEC) {
220                DISPLAYLEVEL(2, "\rcooling down ...    \r");
221                UTIL_sleep(COOLPERIOD_SEC);
222                coolTime = UTIL_getTime();
223            }
224
225            /* Compression */
226            DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->\r", marks[markNb], displayName, (unsigned)srcSize);
227            if (!cCompleted) memset(compressedBuffer, 0xE5, maxCompressedSize);  /* warm up and erase result buffer */
228
229            UTIL_sleepMilli(1);  /* give processor time to other processes */
230            UTIL_waitForNextTick();
231            clockStart = UTIL_getTime();
232
233            if (!cCompleted) {   /* still some time to do compression tests */
234                U32 nbLoops = 0;
235                if (compressor == BMK_ZSTD) {
236                    ZSTD_parameters const zparams = ZSTD_getParams(cLevel, avgSize, dictBufferSize);
237                    ZSTD_customMem const cmem = { NULL, NULL, NULL };
238                    ZSTD_CDict* const cdict = ZSTD_createCDict_advanced(dictBuffer, dictBufferSize, ZSTD_dlm_byRef, ZSTD_dct_auto, zparams.cParams, cmem);
239                    if (cdict==NULL) EXM_THROW(1, "ZSTD_createCDict_advanced() allocation failure");
240
241                    do {
242                        U32 blockNb;
243                        size_t rSize;
244                        for (blockNb=0; blockNb<nbBlocks; blockNb++) {
245                            if (dictBufferSize) {
246                                rSize = ZSTD_compress_usingCDict(ctx,
247                                                blockTable[blockNb].cPtr,  blockTable[blockNb].cRoom,
248                                                blockTable[blockNb].srcPtr,blockTable[blockNb].srcSize,
249                                                cdict);
250                            } else {
251                                rSize = ZSTD_compressCCtx (ctx,
252                                                blockTable[blockNb].cPtr,  blockTable[blockNb].cRoom,
253                                                blockTable[blockNb].srcPtr,blockTable[blockNb].srcSize, cLevel);
254                            }
255                            if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_compress_usingCDict() failed : %s", ZSTD_getErrorName(rSize));
256                            blockTable[blockNb].cSize = rSize;
257                        }
258                        nbLoops++;
259                    } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
260                    ZSTD_freeCDict(cdict);
261                } else if (compressor == BMK_ZSTD_STREAM) {
262                    ZSTD_parameters const zparams = ZSTD_getParams(cLevel, avgSize, dictBufferSize);
263                    ZSTD_inBuffer inBuffer;
264                    ZSTD_outBuffer outBuffer;
265                    ZSTD_CStream* zbc = ZSTD_createCStream();
266                    size_t rSize;
267                    ZSTD_CCtx_params* cctxParams = ZSTD_createCCtxParams();
268
269                    if (!cctxParams) EXM_THROW(1, "ZSTD_createCCtxParams() allocation failure");
270                    if (zbc == NULL) EXM_THROW(1, "ZSTD_createCStream() allocation failure");
271
272                    {   int initErr = 0;
273                        initErr |= ZSTD_isError(ZSTD_CCtx_reset(zbc, ZSTD_reset_session_only));
274                        initErr |= ZSTD_isError(ZSTD_CCtxParams_init_advanced(cctxParams, zparams));
275                        initErr |= ZSTD_isError(ZSTD_CCtx_setParametersUsingCCtxParams(zbc, cctxParams));
276                        initErr |= ZSTD_isError(ZSTD_CCtx_setPledgedSrcSize(zbc, avgSize));
277                        initErr |= ZSTD_isError(ZSTD_CCtx_loadDictionary(zbc, dictBuffer, dictBufferSize));
278
279                        ZSTD_freeCCtxParams(cctxParams);
280                        if (initErr) EXM_THROW(1, "CCtx init failed!");
281                    }
282
283                    do {
284                        U32 blockNb;
285                        for (blockNb=0; blockNb<nbBlocks; blockNb++) {
286                            rSize = ZSTD_CCtx_reset(zbc, ZSTD_reset_session_only);
287                            if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_CCtx_reset() failed : %s", ZSTD_getErrorName(rSize));
288                            rSize = ZSTD_CCtx_setPledgedSrcSize(zbc, blockTable[blockNb].srcSize);
289                            if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_CCtx_setPledgedSrcSize() failed : %s", ZSTD_getErrorName(rSize));
290                            inBuffer.src = blockTable[blockNb].srcPtr;
291                            inBuffer.size = blockTable[blockNb].srcSize;
292                            inBuffer.pos = 0;
293                            outBuffer.dst = blockTable[blockNb].cPtr;
294                            outBuffer.size = blockTable[blockNb].cRoom;
295                            outBuffer.pos = 0;
296                            rSize = ZSTD_compressStream(zbc, &outBuffer, &inBuffer);
297                            if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_compressStream() failed : %s", ZSTD_getErrorName(rSize));
298                            rSize = ZSTD_endStream(zbc, &outBuffer);
299                            if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_endStream() failed : %s", ZSTD_getErrorName(rSize));
300                            blockTable[blockNb].cSize = outBuffer.pos;
301                        }
302                        nbLoops++;
303                    } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
304                    ZSTD_freeCStream(zbc);
305                } else if (compressor == BMK_ZWRAP_ZLIB_REUSE || compressor == BMK_ZWRAP_ZSTD_REUSE || compressor == BMK_ZLIB_REUSE) {
306                    z_stream def;
307                    int ret;
308                    int useSetDict = (dictBuffer != NULL);
309                    if (compressor == BMK_ZLIB_REUSE || compressor == BMK_ZWRAP_ZLIB_REUSE) ZWRAP_useZSTDcompression(0);
310                    else ZWRAP_useZSTDcompression(1);
311                    def.zalloc = Z_NULL;
312                    def.zfree = Z_NULL;
313                    def.opaque = Z_NULL;
314                    ret = deflateInit(&def, cLevel);
315                    if (ret != Z_OK) EXM_THROW(1, "deflateInit failure");
316                 /*   if (ZWRAP_isUsingZSTDcompression()) {
317                        ret = ZWRAP_setPledgedSrcSize(&def, avgSize);
318                        if (ret != Z_OK) EXM_THROW(1, "ZWRAP_setPledgedSrcSize failure");
319                    } */
320                    do {
321                        U32 blockNb;
322                        for (blockNb=0; blockNb<nbBlocks; blockNb++) {
323                            if (ZWRAP_isUsingZSTDcompression())
324                                ret = ZWRAP_deflateReset_keepDict(&def); /* reuse dictionary to make compression faster */
325                            else
326                                ret = deflateReset(&def);
327                            if (ret != Z_OK) EXM_THROW(1, "deflateReset failure");
328                            if (useSetDict) {
329                                ret = deflateSetDictionary(&def, (const z_Bytef*)dictBuffer, dictBufferSize);
330                                if (ret != Z_OK) EXM_THROW(1, "deflateSetDictionary failure");
331                                if (ZWRAP_isUsingZSTDcompression()) useSetDict = 0; /* zstd doesn't require deflateSetDictionary after ZWRAP_deflateReset_keepDict */
332                            }
333                            def.next_in = (z_const z_Bytef*) blockTable[blockNb].srcPtr;
334                            def.avail_in = (uInt)blockTable[blockNb].srcSize;
335                            def.total_in = 0;
336                            def.next_out = (z_Bytef*) blockTable[blockNb].cPtr;
337                            def.avail_out = (uInt)blockTable[blockNb].cRoom;
338                            def.total_out = 0;
339                            ret = deflate(&def, Z_FINISH);
340                            if (ret != Z_STREAM_END) EXM_THROW(1, "deflate failure ret=%d srcSize=%d" , ret, (int)blockTable[blockNb].srcSize);
341                            blockTable[blockNb].cSize = def.total_out;
342                        }
343                        nbLoops++;
344                    } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
345                    ret = deflateEnd(&def);
346                    if (ret != Z_OK) EXM_THROW(1, "deflateEnd failure");
347                } else {
348                    z_stream def;
349                    if (compressor == BMK_ZLIB || compressor == BMK_ZWRAP_ZLIB) ZWRAP_useZSTDcompression(0);
350                    else ZWRAP_useZSTDcompression(1);
351                    do {
352                        U32 blockNb;
353                        for (blockNb=0; blockNb<nbBlocks; blockNb++) {
354                            int ret;
355                            def.zalloc = Z_NULL;
356                            def.zfree = Z_NULL;
357                            def.opaque = Z_NULL;
358                            ret = deflateInit(&def, cLevel);
359                            if (ret != Z_OK) EXM_THROW(1, "deflateInit failure");
360                            if (dictBuffer) {
361                                ret = deflateSetDictionary(&def, (const z_Bytef*)dictBuffer, dictBufferSize);
362                                if (ret != Z_OK) EXM_THROW(1, "deflateSetDictionary failure");
363                            }
364                            def.next_in = (z_const z_Bytef*) blockTable[blockNb].srcPtr;
365                            def.avail_in = (uInt)blockTable[blockNb].srcSize;
366                            def.total_in = 0;
367                            def.next_out = (z_Bytef*) blockTable[blockNb].cPtr;
368                            def.avail_out = (uInt)blockTable[blockNb].cRoom;
369                            def.total_out = 0;
370                            ret = deflate(&def, Z_FINISH);
371                            if (ret != Z_STREAM_END) EXM_THROW(1, "deflate failure");
372                            ret = deflateEnd(&def);
373                            if (ret != Z_OK) EXM_THROW(1, "deflateEnd failure");
374                            blockTable[blockNb].cSize = def.total_out;
375                        }
376                        nbLoops++;
377                    } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
378                }
379                {   U64 const clockSpan = UTIL_clockSpanMicro(clockStart);
380                    if (clockSpan < fastestC*nbLoops) fastestC = clockSpan / nbLoops;
381                    totalCTime += clockSpan;
382                    cCompleted = totalCTime>maxTime;
383            }   }
384
385            cSize = 0;
386            { U32 blockNb; for (blockNb=0; blockNb<nbBlocks; blockNb++) cSize += blockTable[blockNb].cSize; }
387            ratio = (double)srcSize / (double)cSize;
388            markNb = (markNb+1) % NB_MARKS;
389            DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.3f),%6.1f MB/s\r",
390                    marks[markNb], displayName, (unsigned)srcSize, (unsigned)cSize, ratio,
391                    (double)srcSize / fastestC );
392
393            (void)fastestD; (void)crcOrig;   /*  unused when decompression disabled */
394#if 1
395            /* Decompression */
396            if (!dCompleted) memset(resultBuffer, 0xD6, srcSize);  /* warm result buffer */
397
398            UTIL_sleepMilli(1); /* give processor time to other processes */
399            UTIL_waitForNextTick();
400            clockStart = UTIL_getTime();
401
402            if (!dCompleted) {
403                U32 nbLoops = 0;
404                if (compressor == BMK_ZSTD) {
405                    ZSTD_DDict* ddict = ZSTD_createDDict(dictBuffer, dictBufferSize);
406                    if (!ddict) EXM_THROW(2, "ZSTD_createDDict() allocation failure");
407                    do {
408                        unsigned blockNb;
409                        for (blockNb=0; blockNb<nbBlocks; blockNb++) {
410                            size_t const regenSize = ZSTD_decompress_usingDDict(dctx,
411                                blockTable[blockNb].resPtr, blockTable[blockNb].srcSize,
412                                blockTable[blockNb].cPtr, blockTable[blockNb].cSize,
413                                ddict);
414                            if (ZSTD_isError(regenSize)) {
415                                DISPLAY("ZSTD_decompress_usingDDict() failed on block %u : %s  \n",
416                                          blockNb, ZSTD_getErrorName(regenSize));
417                                clockLoop = 0;   /* force immediate test end */
418                                break;
419                            }
420                            blockTable[blockNb].resSize = regenSize;
421                        }
422                        nbLoops++;
423                    } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
424                    ZSTD_freeDDict(ddict);
425                } else if (compressor == BMK_ZSTD_STREAM) {
426                    ZSTD_inBuffer inBuffer;
427                    ZSTD_outBuffer outBuffer;
428                    ZSTD_DStream* zbd = ZSTD_createDStream();
429                    size_t rSize;
430                    if (zbd == NULL) EXM_THROW(1, "ZSTD_createDStream() allocation failure");
431                    rSize = ZSTD_initDStream_usingDict(zbd, dictBuffer, dictBufferSize);
432                    if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_initDStream() failed : %s", ZSTD_getErrorName(rSize));
433                    do {
434                        U32 blockNb;
435                        for (blockNb=0; blockNb<nbBlocks; blockNb++) {
436                            rSize = ZSTD_DCtx_reset(zbd, ZSTD_reset_session_only);
437                            if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_DCtx_reset() failed : %s", ZSTD_getErrorName(rSize));
438                            inBuffer.src = blockTable[blockNb].cPtr;
439                            inBuffer.size = blockTable[blockNb].cSize;
440                            inBuffer.pos = 0;
441                            outBuffer.dst = blockTable[blockNb].resPtr;
442                            outBuffer.size = blockTable[blockNb].srcSize;
443                            outBuffer.pos = 0;
444                            rSize = ZSTD_decompressStream(zbd, &outBuffer, &inBuffer);
445                            if (ZSTD_isError(rSize)) EXM_THROW(1, "ZSTD_decompressStream() failed : %s", ZSTD_getErrorName(rSize));
446                            blockTable[blockNb].resSize = outBuffer.pos;
447                        }
448                        nbLoops++;
449                    } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
450                    ZSTD_freeDStream(zbd);
451                } else if (compressor == BMK_ZWRAP_ZLIB_REUSE || compressor == BMK_ZWRAP_ZSTD_REUSE || compressor == BMK_ZLIB_REUSE) {
452                    z_stream inf;
453                    int ret;
454                    if (compressor == BMK_ZLIB_REUSE) ZWRAP_setDecompressionType(ZWRAP_FORCE_ZLIB);
455                    else ZWRAP_setDecompressionType(ZWRAP_AUTO);
456                    inf.zalloc = Z_NULL;
457                    inf.zfree = Z_NULL;
458                    inf.opaque = Z_NULL;
459                    ret = inflateInit(&inf);
460                    if (ret != Z_OK) EXM_THROW(1, "inflateInit failure");
461                    do {
462                        U32 blockNb;
463                        for (blockNb=0; blockNb<nbBlocks; blockNb++) {
464                            if (ZWRAP_isUsingZSTDdecompression(&inf))
465                                ret = ZWRAP_inflateReset_keepDict(&inf); /* reuse dictionary to make decompression faster; inflate will return Z_NEED_DICT only for the first time */
466                            else
467                                ret = inflateReset(&inf);
468                            if (ret != Z_OK) EXM_THROW(1, "inflateReset failure");
469                            inf.next_in = (z_const z_Bytef*) blockTable[blockNb].cPtr;
470                            inf.avail_in = (uInt)blockTable[blockNb].cSize;
471                            inf.total_in = 0;
472                            inf.next_out = (z_Bytef*) blockTable[blockNb].resPtr;
473                            inf.avail_out = (uInt)blockTable[blockNb].srcSize;
474                            inf.total_out = 0;
475                            ret = inflate(&inf, Z_FINISH);
476                            if (ret == Z_NEED_DICT) {
477                                ret = inflateSetDictionary(&inf, (const z_Bytef*)dictBuffer, dictBufferSize);
478                                if (ret != Z_OK) EXM_THROW(1, "inflateSetDictionary failure");
479                                ret = inflate(&inf, Z_FINISH);
480                            }
481                            if (ret != Z_STREAM_END) EXM_THROW(1, "inflate failure");
482                            blockTable[blockNb].resSize = inf.total_out;
483                        }
484                        nbLoops++;
485                    } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
486                    ret = inflateEnd(&inf);
487                    if (ret != Z_OK) EXM_THROW(1, "inflateEnd failure");
488                } else {
489                    z_stream inf;
490                    if (compressor == BMK_ZLIB) ZWRAP_setDecompressionType(ZWRAP_FORCE_ZLIB);
491                    else ZWRAP_setDecompressionType(ZWRAP_AUTO);
492                    do {
493                        U32 blockNb;
494                        for (blockNb=0; blockNb<nbBlocks; blockNb++) {
495                            int ret;
496                            inf.zalloc = Z_NULL;
497                            inf.zfree = Z_NULL;
498                            inf.opaque = Z_NULL;
499                            ret = inflateInit(&inf);
500                            if (ret != Z_OK) EXM_THROW(1, "inflateInit failure");
501                            inf.next_in = (z_const z_Bytef*) blockTable[blockNb].cPtr;
502                            inf.avail_in = (uInt)blockTable[blockNb].cSize;
503                            inf.total_in = 0;
504                            inf.next_out = (z_Bytef*) blockTable[blockNb].resPtr;
505                            inf.avail_out = (uInt)blockTable[blockNb].srcSize;
506                            inf.total_out = 0;
507                            ret = inflate(&inf, Z_FINISH);
508                            if (ret == Z_NEED_DICT) {
509                                ret = inflateSetDictionary(&inf, (const z_Bytef*) dictBuffer, dictBufferSize);
510                                if (ret != Z_OK) EXM_THROW(1, "inflateSetDictionary failure");
511                                ret = inflate(&inf, Z_FINISH);
512                            }
513                            if (ret != Z_STREAM_END) EXM_THROW(1, "inflate failure");
514                            ret = inflateEnd(&inf);
515                            if (ret != Z_OK) EXM_THROW(1, "inflateEnd failure");
516                            blockTable[blockNb].resSize = inf.total_out;
517                        }
518                        nbLoops++;
519                    } while (UTIL_clockSpanMicro(clockStart) < clockLoop);
520                }
521                {   U64 const clockSpan = UTIL_clockSpanMicro(clockStart);
522                    if (clockSpan < fastestD*nbLoops) fastestD = clockSpan / nbLoops;
523                    totalDTime += clockSpan;
524                    dCompleted = totalDTime>maxTime;
525            }   }
526
527            markNb = (markNb+1) % NB_MARKS;
528            DISPLAYLEVEL(2, "%2s-%-17.17s :%10u ->%10u (%5.3f),%6.1f MB/s ,%6.1f MB/s\r",
529                    marks[markNb], displayName, (unsigned)srcSize, (unsigned)cSize, ratio,
530                    (double)srcSize / fastestC,
531                    (double)srcSize / fastestD );
532
533            /* CRC Checking */
534            {   U64 const crcCheck = XXH64(resultBuffer, srcSize, 0);
535                if (crcOrig!=crcCheck) {
536                    size_t u;
537                    DISPLAY("!!! WARNING !!! %14s : Invalid Checksum : %x != %x   \n", displayName, (unsigned)crcOrig, (unsigned)crcCheck);
538                    for (u=0; u<srcSize; u++) {
539                        if (((const BYTE*)srcBuffer)[u] != ((const BYTE*)resultBuffer)[u]) {
540                            unsigned segNb, bNb, pos;
541                            size_t bacc = 0;
542                            DISPLAY("Decoding error at pos %u ", (unsigned)u);
543                            for (segNb = 0; segNb < nbBlocks; segNb++) {
544                                if (bacc + blockTable[segNb].srcSize > u) break;
545                                bacc += blockTable[segNb].srcSize;
546                            }
547                            pos = (U32)(u - bacc);
548                            bNb = pos / (128 KB);
549                            DISPLAY("(block %u, sub %u, pos %u) \n", segNb, bNb, pos);
550                            break;
551                        }
552                        if (u==srcSize-1) {  /* should never happen */
553                            DISPLAY("no difference detected\n");
554                    }   }
555                    break;
556            }   }   /* CRC Checking */
557#endif
558        }   /* for (testNb = 1; testNb <= (g_nbIterations + !g_nbIterations); testNb++) */
559
560        if (g_displayLevel == 1) {
561            double cSpeed = (double)srcSize / fastestC;
562            double dSpeed = (double)srcSize / fastestD;
563            if (g_additionalParam)
564                DISPLAY("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s  %s (param=%d)\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName, g_additionalParam);
565            else
566                DISPLAY("-%-3i%11i (%5.3f) %6.2f MB/s %6.1f MB/s  %s\n", cLevel, (int)cSize, ratio, cSpeed, dSpeed, displayName);
567        }
568        DISPLAYLEVEL(2, "%2i#\n", cLevel);
569    }   /* Bench */
570
571    /* clean up */
572    free(blockTable);
573    free(compressedBuffer);
574    free(resultBuffer);
575    ZSTD_freeCCtx(ctx);
576    ZSTD_freeDCtx(dctx);
577    return 0;
578}
579
580
581static size_t BMK_findMaxMem(U64 requiredMem)
582{
583    size_t const step = 64 MB;
584    BYTE* testmem = NULL;
585
586    requiredMem = (((requiredMem >> 26) + 1) << 26);
587    requiredMem += step;
588    if (requiredMem > maxMemory) requiredMem = maxMemory;
589
590    do {
591        testmem = (BYTE*)malloc((size_t)requiredMem);
592        requiredMem -= step;
593    } while (!testmem && requiredMem);   /* do not allocate zero bytes */
594
595    free(testmem);
596    return (size_t)(requiredMem+1);  /* avoid zero */
597}
598
599static void BMK_benchCLevel(void* srcBuffer, size_t benchedSize,
600                            const char* displayName, int cLevel, int cLevelLast,
601                            const size_t* fileSizes, unsigned nbFiles,
602                            const void* dictBuffer, size_t dictBufferSize)
603{
604    int l;
605
606    const char* pch = strrchr(displayName, '\\'); /* Windows */
607    if (!pch) pch = strrchr(displayName, '/'); /* Linux */
608    if (pch) displayName = pch+1;
609
610    SET_REALTIME_PRIORITY;
611
612    if (g_displayLevel == 1 && !g_additionalParam)
613        DISPLAY("bench %s %s: input %u bytes, %u seconds, %u KB blocks\n",
614                ZSTD_VERSION_STRING, ZSTD_GIT_COMMIT_STRING,
615                (unsigned)benchedSize, g_nbIterations, (unsigned)(g_blockSize>>10));
616
617    if (cLevelLast < cLevel) cLevelLast = cLevel;
618
619    DISPLAY("benchmarking zstd %s (using ZSTD_CStream)\n", ZSTD_VERSION_STRING);
620    for (l=cLevel; l <= cLevelLast; l++) {
621        BMK_benchMem(srcBuffer, benchedSize,
622                     displayName, l,
623                     fileSizes, nbFiles,
624                     dictBuffer, dictBufferSize, BMK_ZSTD_STREAM);
625    }
626
627    DISPLAY("benchmarking zstd %s (using ZSTD_CCtx)\n", ZSTD_VERSION_STRING);
628    for (l=cLevel; l <= cLevelLast; l++) {
629        BMK_benchMem(srcBuffer, benchedSize,
630                     displayName, l,
631                     fileSizes, nbFiles,
632                     dictBuffer, dictBufferSize, BMK_ZSTD);
633    }
634
635    DISPLAY("benchmarking zstd %s (using zlibWrapper)\n", ZSTD_VERSION_STRING);
636    for (l=cLevel; l <= cLevelLast; l++) {
637        BMK_benchMem(srcBuffer, benchedSize,
638                     displayName, l,
639                     fileSizes, nbFiles,
640                     dictBuffer, dictBufferSize, BMK_ZWRAP_ZSTD_REUSE);
641    }
642
643    DISPLAY("benchmarking zstd %s (zlibWrapper not reusing a context)\n", ZSTD_VERSION_STRING);
644    for (l=cLevel; l <= cLevelLast; l++) {
645        BMK_benchMem(srcBuffer, benchedSize,
646                     displayName, l,
647                     fileSizes, nbFiles,
648                     dictBuffer, dictBufferSize, BMK_ZWRAP_ZSTD);
649    }
650
651
652    if (cLevelLast > Z_BEST_COMPRESSION) cLevelLast = Z_BEST_COMPRESSION;
653
654    DISPLAY("\n");
655    DISPLAY("benchmarking zlib %s\n", ZLIB_VERSION);
656    for (l=cLevel; l <= cLevelLast; l++) {
657        BMK_benchMem(srcBuffer, benchedSize,
658                     displayName, l,
659                     fileSizes, nbFiles,
660                     dictBuffer, dictBufferSize, BMK_ZLIB_REUSE);
661    }
662
663    DISPLAY("benchmarking zlib %s (zlib not reusing a context)\n", ZLIB_VERSION);
664    for (l=cLevel; l <= cLevelLast; l++) {
665        BMK_benchMem(srcBuffer, benchedSize,
666                     displayName, l,
667                     fileSizes, nbFiles,
668                     dictBuffer, dictBufferSize, BMK_ZLIB);
669    }
670
671    DISPLAY("benchmarking zlib %s (using zlibWrapper)\n", ZLIB_VERSION);
672    for (l=cLevel; l <= cLevelLast; l++) {
673        BMK_benchMem(srcBuffer, benchedSize,
674                     displayName, l,
675                     fileSizes, nbFiles,
676                     dictBuffer, dictBufferSize, BMK_ZWRAP_ZLIB_REUSE);
677    }
678
679    DISPLAY("benchmarking zlib %s (zlibWrapper not reusing a context)\n", ZLIB_VERSION);
680    for (l=cLevel; l <= cLevelLast; l++) {
681        BMK_benchMem(srcBuffer, benchedSize,
682                     displayName, l,
683                     fileSizes, nbFiles,
684                     dictBuffer, dictBufferSize, BMK_ZWRAP_ZLIB);
685    }
686}
687
688
689/*! BMK_loadFiles() :
690    Loads `buffer` with content of files listed within `fileNamesTable`.
691    At most, fills `buffer` entirely */
692static void BMK_loadFiles(void* buffer, size_t bufferSize,
693                          size_t* fileSizes,
694                          const char** fileNamesTable, unsigned nbFiles)
695{
696    size_t pos = 0, totalSize = 0;
697    unsigned n;
698    for (n=0; n<nbFiles; n++) {
699        FILE* f;
700        U64 fileSize = UTIL_getFileSize(fileNamesTable[n]);
701        if (UTIL_isDirectory(fileNamesTable[n])) {
702            DISPLAYLEVEL(2, "Ignoring %s directory...       \n", fileNamesTable[n]);
703            fileSizes[n] = 0;
704            continue;
705        }
706        if (fileSize == UTIL_FILESIZE_UNKNOWN) {
707            DISPLAYLEVEL(2, "Cannot determine size of %s ...    \n", fileNamesTable[n]);
708            fileSizes[n] = 0;
709            continue;
710        }
711        f = fopen(fileNamesTable[n], "rb");
712        if (f==NULL) EXM_THROW(10, "impossible to open file %s", fileNamesTable[n]);
713        DISPLAYUPDATE(2, "Loading %s...       \r", fileNamesTable[n]);
714        if (fileSize > bufferSize-pos) fileSize = bufferSize-pos, nbFiles=n;   /* buffer too small - stop after this file */
715        { size_t const readSize = fread(((char*)buffer)+pos, 1, (size_t)fileSize, f);
716          if (readSize != (size_t)fileSize) EXM_THROW(11, "could not read %s", fileNamesTable[n]);
717          pos += readSize; }
718        fileSizes[n] = (size_t)fileSize;
719        totalSize += (size_t)fileSize;
720        fclose(f);
721    }
722
723    if (totalSize == 0) EXM_THROW(12, "no data to bench");
724}
725
726static void BMK_benchFileTable(const char** fileNamesTable, unsigned nbFiles,
727                               const char* dictFileName, int cLevel, int cLevelLast)
728{
729    void* srcBuffer;
730    size_t benchedSize;
731    void* dictBuffer = NULL;
732    size_t dictBufferSize = 0;
733    size_t* fileSizes = (size_t*)malloc(nbFiles * sizeof(size_t));
734    U64 const totalSizeToLoad = UTIL_getTotalFileSize(fileNamesTable, nbFiles);
735    char mfName[20] = {0};
736
737    if (!fileSizes) EXM_THROW(12, "not enough memory for fileSizes");
738
739    /* Load dictionary */
740    if (dictFileName != NULL) {
741        U64 const dictFileSize = UTIL_getFileSize(dictFileName);
742        if (dictFileSize > 64 MB)
743            EXM_THROW(10, "dictionary file %s too large", dictFileName);
744        dictBufferSize = (size_t)dictFileSize;
745        dictBuffer = malloc(dictBufferSize);
746        if (dictBuffer==NULL)
747            EXM_THROW(11, "not enough memory for dictionary (%u bytes)", (unsigned)dictBufferSize);
748        BMK_loadFiles(dictBuffer, dictBufferSize, fileSizes, &dictFileName, 1);
749    }
750
751    /* Memory allocation & restrictions */
752    benchedSize = BMK_findMaxMem(totalSizeToLoad * 3) / 3;
753    if ((U64)benchedSize > totalSizeToLoad) benchedSize = (size_t)totalSizeToLoad;
754    if (benchedSize < totalSizeToLoad)
755        DISPLAY("Not enough memory; testing %u MB only...\n", (unsigned)(benchedSize >> 20));
756    srcBuffer = malloc(benchedSize + !benchedSize);
757    if (!srcBuffer) EXM_THROW(12, "not enough memory");
758
759    /* Load input buffer */
760    BMK_loadFiles(srcBuffer, benchedSize, fileSizes, fileNamesTable, nbFiles);
761
762    /* Bench */
763    snprintf (mfName, sizeof(mfName), " %u files", nbFiles);
764    {   const char* displayName = (nbFiles > 1) ? mfName : fileNamesTable[0];
765        BMK_benchCLevel(srcBuffer, benchedSize,
766                        displayName, cLevel, cLevelLast,
767                        fileSizes, nbFiles,
768                        dictBuffer, dictBufferSize);
769    }
770
771    /* clean up */
772    free(srcBuffer);
773    free(dictBuffer);
774    free(fileSizes);
775}
776
777
778static void BMK_syntheticTest(int cLevel, int cLevelLast, double compressibility)
779{
780    char name[20] = {0};
781    size_t benchedSize = 10000000;
782    void* const srcBuffer = malloc(benchedSize);
783
784    /* Memory allocation */
785    if (!srcBuffer) EXM_THROW(21, "not enough memory");
786
787    /* Fill input buffer */
788    RDG_genBuffer(srcBuffer, benchedSize, compressibility, 0.0, 0);
789
790    /* Bench */
791    snprintf (name, sizeof(name), "Synthetic %2u%%", (unsigned)(compressibility*100));
792    BMK_benchCLevel(srcBuffer, benchedSize, name, cLevel, cLevelLast, &benchedSize, 1, NULL, 0);
793
794    /* clean up */
795    free(srcBuffer);
796}
797
798
799int BMK_benchFiles(const char** fileNamesTable, unsigned nbFiles,
800                   const char* dictFileName, int cLevel, int cLevelLast)
801{
802    double const compressibility = (double)g_compressibilityDefault / 100;
803
804    if (nbFiles == 0)
805        BMK_syntheticTest(cLevel, cLevelLast, compressibility);
806    else
807        BMK_benchFileTable(fileNamesTable, nbFiles, dictFileName, cLevel, cLevelLast);
808    return 0;
809}
810
811
812
813
814/*-************************************
815*  Command Line
816**************************************/
817static int usage(const char* programName)
818{
819    DISPLAY(WELCOME_MESSAGE);
820    DISPLAY( "Usage :\n");
821    DISPLAY( "      %s [args] [FILE(s)] [-o file]\n", programName);
822    DISPLAY( "\n");
823    DISPLAY( "FILE    : a filename\n");
824    DISPLAY( "          with no FILE, or when FILE is - , read standard input\n");
825    DISPLAY( "Arguments :\n");
826    DISPLAY( " -D file: use `file` as Dictionary \n");
827    DISPLAY( " -h/-H  : display help/long help and exit\n");
828    DISPLAY( " -V     : display Version number and exit\n");
829    DISPLAY( " -v     : verbose mode; specify multiple times to increase log level (default:%d)\n", DEFAULT_DISPLAY_LEVEL);
830    DISPLAY( " -q     : suppress warnings; specify twice to suppress errors too\n");
831#ifdef UTIL_HAS_CREATEFILELIST
832    DISPLAY( " -r     : operate recursively on directories\n");
833#endif
834    DISPLAY( "\n");
835    DISPLAY( "Benchmark arguments :\n");
836    DISPLAY( " -b#    : benchmark file(s), using # compression level (default : %d) \n", ZSTDCLI_CLEVEL_DEFAULT);
837    DISPLAY( " -e#    : test all compression levels from -bX to # (default: %d)\n", ZSTDCLI_CLEVEL_DEFAULT);
838    DISPLAY( " -i#    : minimum evaluation time in seconds (default : 3s)\n");
839    DISPLAY( " -B#    : cut file into independent blocks of size # (default: no block)\n");
840    return 0;
841}
842
843static int badusage(const char* programName)
844{
845    DISPLAYLEVEL(1, "Incorrect parameters\n");
846    if (g_displayLevel >= 1) usage(programName);
847    return 1;
848}
849
850static void waitEnter(void)
851{
852    int unused;
853    DISPLAY("Press enter to continue...\n");
854    unused = getchar();
855    (void)unused;
856}
857
858/*! readU32FromChar() :
859    @return : unsigned integer value reach from input in `char` format
860    Will also modify `*stringPtr`, advancing it to position where it stopped reading.
861    Note : this function can overflow if digit string > MAX_UINT */
862static unsigned readU32FromChar(const char** stringPtr)
863{
864    unsigned result = 0;
865    while ((**stringPtr >='0') && (**stringPtr <='9'))
866        result *= 10, result += (unsigned)(**stringPtr - '0'), (*stringPtr)++ ;
867    return result;
868}
869
870
871#define CLEAN_RETURN(i) { operationResult = (i); goto _end; }
872
873int main(int argCount, char** argv)
874{
875    int argNb,
876        main_pause=0,
877        nextEntryIsDictionary=0,
878        operationResult=0,
879        nextArgumentIsFile=0;
880    int cLevel = ZSTDCLI_CLEVEL_DEFAULT;
881    int cLevelLast = 1;
882    unsigned recursive = 0;
883    FileNamesTable* filenames = UTIL_allocateFileNamesTable((size_t)argCount);
884    const char* programName = argv[0];
885    const char* dictFileName = NULL;
886    char* dynNameSpace = NULL;
887
888    /* init */
889    if (filenames==NULL) { DISPLAY("zstd: %s \n", strerror(errno)); exit(1); }
890    displayOut = stderr;
891
892    /* Pick out program name from path. Don't rely on stdlib because of conflicting behavior */
893    {   size_t pos;
894        for (pos = strlen(programName); pos > 0; pos--) { if (programName[pos] == '/') { pos++; break; } }
895        programName += pos;
896    }
897
898     /* command switches */
899    for(argNb=1; argNb<argCount; argNb++) {
900        const char* argument = argv[argNb];
901        if(!argument) continue;   /* Protection if argument empty */
902
903        if (nextArgumentIsFile==0) {
904
905            /* long commands (--long-word) */
906            if (!strcmp(argument, "--")) { nextArgumentIsFile=1; continue; }
907            if (!strcmp(argument, "--version")) { displayOut=stdout; DISPLAY(WELCOME_MESSAGE); CLEAN_RETURN(0); }
908            if (!strcmp(argument, "--help")) { displayOut=stdout; CLEAN_RETURN(usage(programName)); }
909            if (!strcmp(argument, "--verbose")) { g_displayLevel++; continue; }
910            if (!strcmp(argument, "--quiet")) { g_displayLevel--; continue; }
911
912            /* Decode commands (note : aggregated commands are allowed) */
913            if (argument[0]=='-') {
914                argument++;
915
916                while (argument[0]!=0) {
917                    switch(argument[0])
918                    {
919                        /* Display help */
920                    case 'V': displayOut=stdout; DISPLAY(WELCOME_MESSAGE); CLEAN_RETURN(0);   /* Version Only */
921                    case 'H':
922                    case 'h': displayOut=stdout; CLEAN_RETURN(usage(programName));
923
924                        /* Use file content as dictionary */
925                    case 'D': nextEntryIsDictionary = 1; argument++; break;
926
927                        /* Verbose mode */
928                    case 'v': g_displayLevel++; argument++; break;
929
930                        /* Quiet mode */
931                    case 'q': g_displayLevel--; argument++; break;
932
933#ifdef UTIL_HAS_CREATEFILELIST
934                        /* recursive */
935                    case 'r': recursive=1; argument++; break;
936#endif
937
938                        /* Benchmark */
939                    case 'b':
940                            /* first compression Level */
941                            argument++;
942                            cLevel = (int)readU32FromChar(&argument);
943                            break;
944
945                        /* range bench (benchmark only) */
946                    case 'e':
947                            /* last compression Level */
948                            argument++;
949                            cLevelLast = (int)readU32FromChar(&argument);
950                            break;
951
952                        /* Modify Nb Iterations (benchmark only) */
953                    case 'i':
954                        argument++;
955                        {   U32 const iters = readU32FromChar(&argument);
956                            BMK_setNotificationLevel(g_displayLevel);
957                            BMK_SetNbIterations(iters);
958                        }
959                        break;
960
961                        /* cut input into blocks (benchmark only) */
962                    case 'B':
963                        argument++;
964                        {   size_t bSize = readU32FromChar(&argument);
965                            if (toupper(*argument)=='K') bSize<<=10, argument++;  /* allows using KB notation */
966                            if (toupper(*argument)=='M') bSize<<=20, argument++;
967                            if (toupper(*argument)=='B') argument++;
968                            BMK_setNotificationLevel(g_displayLevel);
969                            BMK_SetBlockSize(bSize);
970                        }
971                        break;
972
973                        /* Pause at the end (-p) or set an additional param (-p#) (hidden option) */
974                    case 'p': argument++;
975                        if ((*argument>='0') && (*argument<='9')) {
976                            BMK_setAdditionalParam((int)readU32FromChar(&argument));
977                        } else
978                            main_pause=1;
979                        break;
980                        /* unknown command */
981                    default : CLEAN_RETURN(badusage(programName));
982                    }
983                }
984                continue;
985            }   /* if (argument[0]=='-') */
986
987        }   /* if (nextArgumentIsAFile==0) */
988
989        if (nextEntryIsDictionary) {
990            nextEntryIsDictionary = 0;
991            dictFileName = argument;
992            continue;
993        }
994
995        /* add filename to list */
996        UTIL_refFilename(filenames, argument);
997    }
998
999    /* Welcome message (if verbose) */
1000    DISPLAYLEVEL(3, WELCOME_MESSAGE);
1001
1002#ifdef UTIL_HAS_CREATEFILELIST
1003    if (recursive) {
1004        UTIL_expandFNT(&filenames, 1);
1005    }
1006#endif
1007
1008    BMK_setNotificationLevel(g_displayLevel);
1009    BMK_benchFiles(filenames->fileNames, (unsigned)filenames->tableSize, dictFileName, cLevel, cLevelLast);
1010
1011_end:
1012    if (main_pause) waitEnter();
1013    free(dynNameSpace);
1014    UTIL_freeFileNamesTable(filenames);
1015    return operationResult;
1016}
1017