cryptostats.c revision 112394 
1/*-
2 * Copyright (c) 2002, 2003	Sam Leffler, Errno Consulting
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/tools/tools/crypto/cryptostats.c 112394 2003-03-19 01:53:55Z sam $
27 */
28
29/*
30 * Little program to dump the crypto statistics block and, optionally,
31 * zero all the stats or just the timing stuff.
32 */
33#include <stdio.h>
34
35#include <sys/types.h>
36#include <sys/sysctl.h>
37#include <sys/time.h>
38#include <crypto/cryptodev.h>
39
40static void
41printt(const char* tag, struct cryptotstat *ts)
42{
43	uint64_t avg, min, max;
44
45	if (ts->count == 0)
46		return;
47	avg = (1000000000LL*ts->acc.tv_sec + ts->acc.tv_nsec) / ts->count;
48	min = 1000000000LL*ts->min.tv_sec + ts->min.tv_nsec;
49	max = 1000000000LL*ts->max.tv_sec + ts->max.tv_nsec;
50	printf("%16.16s: avg %6llu ns : min %6llu ns : max %7llu ns [%u samps]\n",
51		tag, avg, min, max, ts->count);
52}
53
54int
55main(int argc, char *argv[])
56{
57	struct cryptostats stats;
58	size_t slen;
59
60	slen = sizeof (stats);
61	if (sysctlbyname("kern.crypto_stats", &stats, &slen, NULL, NULL) < 0)
62		err(1, "kern.cryptostats");
63
64	if (argc > 1 && strcmp(argv[1], "-z") == 0) {
65		bzero(&stats.cs_invoke, sizeof (stats.cs_invoke));
66		bzero(&stats.cs_done, sizeof (stats.cs_done));
67		bzero(&stats.cs_cb, sizeof (stats.cs_cb));
68		bzero(&stats.cs_finis, sizeof (stats.cs_finis));
69		stats.cs_invoke.min.tv_sec = 10000;
70		stats.cs_done.min.tv_sec = 10000;
71		stats.cs_cb.min.tv_sec = 10000;
72		stats.cs_finis.min.tv_sec = 10000;
73		if (sysctlbyname("kern.crypto_stats", NULL, NULL, &stats, sizeof (stats)) < 0)
74			err(1, "kern.cryptostats");
75		exit(0);
76	}
77	if (argc > 1 && strcmp(argv[1], "-Z") == 0) {
78		bzero(&stats, sizeof (stats));
79		stats.cs_invoke.min.tv_sec = 10000;
80		stats.cs_done.min.tv_sec = 10000;
81		stats.cs_cb.min.tv_sec = 10000;
82		stats.cs_finis.min.tv_sec = 10000;
83		if (sysctlbyname("kern.crypto_stats", NULL, NULL, &stats, sizeof (stats)) < 0)
84			err(1, "kern.cryptostats");
85		exit(0);
86	}
87
88
89	printf("%u symmetric crypto ops (%u errors, %u times driver blocked)\n"
90		, stats.cs_ops, stats.cs_errs, stats.cs_blocks);
91	printf("%u key ops (%u errors, %u times driver blocked)\n"
92		, stats.cs_kops, stats.cs_kerrs, stats.cs_kblocks);
93	printf("%u crypto dispatch thread activations\n", stats.cs_intrs);
94	printf("%u crypto return thread activations\n", stats.cs_rets);
95	if (stats.cs_invoke.count) {
96		printf("\n");
97		printt("dispatch->invoke", &stats.cs_invoke);
98		printt("invoke->done", &stats.cs_done);
99		printt("done->cb", &stats.cs_cb);
100		printt("cb->finis", &stats.cs_finis);
101	}
102	return 0;
103}
104