build-performance.m4 revision 837:174a54ce39c4 
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25
26AC_DEFUN([BPERF_CHECK_CORES],
27[
28  AC_MSG_CHECKING([for number of cores])
29  NUM_CORES=1
30  FOUND_CORES=no
31
32  if test -f /proc/cpuinfo; then
33    # Looks like a Linux (or cygwin) system
34    NUM_CORES=`cat /proc/cpuinfo  | grep -c processor`
35    FOUND_CORES=yes
36  elif test -x /usr/sbin/psrinfo; then
37    # Looks like a Solaris system
38    NUM_CORES=`LC_MESSAGES=C /usr/sbin/psrinfo -v | grep -c on-line`
39    FOUND_CORES=yes
40  elif test -x /usr/sbin/system_profiler; then
41    # Looks like a MacOSX system
42    NUM_CORES=`/usr/sbin/system_profiler -detailLevel full SPHardwareDataType | grep 'Cores' | awk  '{print [$]5}'`
43    FOUND_CORES=yes
44  elif test -n "$NUMBER_OF_PROCESSORS"; then
45    # On windows, look in the env
46    NUM_CORES=$NUMBER_OF_PROCESSORS
47    FOUND_CORES=yes
48  fi
49
50  if test "x$FOUND_CORES" = xyes; then
51    AC_MSG_RESULT([$NUM_CORES])
52  else
53    AC_MSG_RESULT([could not detect number of cores, defaulting to 1])
54    AC_MSG_WARN([This will disable all parallelism from build!])
55  fi
56])
57
58AC_DEFUN([BPERF_CHECK_MEMORY_SIZE],
59[
60  AC_MSG_CHECKING([for memory size])
61  # Default to 1024 MB
62  MEMORY_SIZE=1024
63  FOUND_MEM=no
64
65  if test -f /proc/meminfo; then
66    # Looks like a Linux (or cygwin) system
67    MEMORY_SIZE=`cat /proc/meminfo | grep MemTotal | awk '{print [$]2}'`
68    MEMORY_SIZE=`expr $MEMORY_SIZE / 1024`
69    FOUND_MEM=yes
70  elif test -x /usr/sbin/prtconf; then
71    # Looks like a Solaris system
72    MEMORY_SIZE=`/usr/sbin/prtconf | grep "Memory size" | awk '{ print [$]3 }'`
73    FOUND_MEM=yes
74  elif test -x /usr/sbin/system_profiler; then
75    # Looks like a MacOSX system
76    MEMORY_SIZE=`/usr/sbin/system_profiler -detailLevel full SPHardwareDataType | grep 'Memory' | awk  '{print [$]2}'`
77    MEMORY_SIZE=`expr $MEMORY_SIZE \* 1024`
78    FOUND_MEM=yes
79  elif test "x$OPENJDK_BUILD_OS" = xwindows; then
80    # Windows, but without cygwin
81    MEMORY_SIZE=`wmic computersystem get totalphysicalmemory -value | grep = | cut -d "=" -f 2-`
82    MEMORY_SIZE=`expr $MEMORY_SIZE / 1024 / 1024`
83    FOUND_MEM=yes
84  fi
85
86  if test "x$FOUND_MEM" = xyes; then
87    AC_MSG_RESULT([$MEMORY_SIZE MB])
88  else
89    AC_MSG_RESULT([could not detect memory size, defaulting to 1024 MB])
90    AC_MSG_WARN([This might seriously impact build performance!])
91  fi
92])
93
94AC_DEFUN_ONCE([BPERF_SETUP_BUILD_CORES],
95[
96  # How many cores do we have on this build system?
97  AC_ARG_WITH(num-cores, [AS_HELP_STRING([--with-num-cores],
98      [number of cores in the build system, e.g. --with-num-cores=8 @<:@probed@:>@])])
99  if test "x$with_num_cores" = x; then
100    # The number of cores were not specified, try to probe them.
101    BPERF_CHECK_CORES
102  else
103    NUM_CORES=$with_num_cores
104  fi
105  AC_SUBST(NUM_CORES)
106])
107
108AC_DEFUN_ONCE([BPERF_SETUP_BUILD_MEMORY],
109[
110  # How much memory do we have on this build system?
111  AC_ARG_WITH(memory-size, [AS_HELP_STRING([--with-memory-size],
112      [memory (in MB) available in the build system, e.g. --with-memory-size=1024 @<:@probed@:>@])])
113  if test "x$with_memory_size" = x; then
114    # The memory size was not specified, try to probe it.
115    BPERF_CHECK_MEMORY_SIZE
116  else
117    MEMORY_SIZE=$with_memory_size
118  fi
119  AC_SUBST(MEMORY_SIZE)
120])
121
122AC_DEFUN_ONCE([BPERF_SETUP_BUILD_JOBS],
123[
124  # Provide a decent default number of parallel jobs for make depending on
125  # number of cores, amount of memory and machine architecture.
126  AC_ARG_WITH(jobs, [AS_HELP_STRING([--with-jobs],
127      [number of parallel jobs to let make run @<:@calculated based on cores and memory@:>@])])
128  if test "x$with_jobs" = x; then
129    # Number of jobs was not specified, calculate.
130    AC_MSG_CHECKING([for appropriate number of jobs to run in parallel])
131    # Approximate memory in GB, rounding up a bit.
132    memory_gb=`expr $MEMORY_SIZE / 1100`
133    # Pick the lowest of memory in gb and number of cores.
134    if test "$memory_gb" -lt "$NUM_CORES"; then
135      JOBS="$memory_gb"
136    else
137      JOBS="$NUM_CORES"
138      # On bigger machines, leave some room for other processes to run
139      if test "$JOBS" -gt "4"; then
140        JOBS=`expr $JOBS '*' 90 / 100`
141      fi
142    fi
143    # Cap number of jobs to 16
144    if test "$JOBS" -gt "16"; then
145      JOBS=16
146    fi
147    if test "$JOBS" -eq "0"; then
148      JOBS=1
149    fi
150    AC_MSG_RESULT([$JOBS])
151  else
152    JOBS=$with_jobs
153  fi
154  AC_SUBST(JOBS)
155])
156
157AC_DEFUN([BPERF_SETUP_CCACHE],
158[
159  AC_ARG_ENABLE([ccache],
160      [AS_HELP_STRING([--disable-ccache],
161      [disable using ccache to speed up recompilations @<:@enabled@:>@])],
162      [ENABLE_CCACHE=${enable_ccache}], [ENABLE_CCACHE=yes])
163  if test "x$ENABLE_CCACHE" = xyes; then
164    OLD_PATH="$PATH"
165    if test "x$TOOLS_DIR" != x; then
166      PATH=$TOOLS_DIR:$PATH
167    fi
168    AC_PATH_PROG(CCACHE, ccache)
169    PATH="$OLD_PATH"
170  else
171    AC_MSG_CHECKING([for ccache])
172    AC_MSG_RESULT([explicitly disabled])
173    CCACHE=
174  fi
175  AC_SUBST(CCACHE)
176
177  AC_ARG_WITH([ccache-dir],
178      [AS_HELP_STRING([--with-ccache-dir],
179      [where to store ccache files @<:@~/.ccache@:>@])])
180
181  if test "x$with_ccache_dir" != x; then
182    # When using a non home ccache directory, assume the use is to share ccache files
183    # with other users. Thus change the umask.
184    SET_CCACHE_DIR="CCACHE_DIR=$with_ccache_dir CCACHE_UMASK=002"
185  fi
186  CCACHE_FOUND=""
187  if test "x$CCACHE" != x; then
188    BPERF_SETUP_CCACHE_USAGE
189  fi
190])
191
192AC_DEFUN([BPERF_SETUP_CCACHE_USAGE],
193[
194  if test "x$CCACHE" != x; then
195    CCACHE_FOUND="true"
196    # Only use ccache if it is 3.1.4 or later, which supports
197    # precompiled headers.
198    AC_MSG_CHECKING([if ccache supports precompiled headers])
199    HAS_GOOD_CCACHE=`($CCACHE --version | head -n 1 | grep -E 3.1.@<:@456789@:>@) 2> /dev/null`
200    if test "x$HAS_GOOD_CCACHE" = x; then
201      AC_MSG_RESULT([no, disabling ccache])
202      CCACHE=
203    else
204      AC_MSG_RESULT([yes])
205      AC_MSG_CHECKING([if C-compiler supports ccache precompiled headers])
206      PUSHED_FLAGS="$CXXFLAGS"
207      CXXFLAGS="-fpch-preprocess $CXXFLAGS"
208      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [CC_KNOWS_CCACHE_TRICK=yes], [CC_KNOWS_CCACHE_TRICK=no])
209      CXXFLAGS="$PUSHED_FLAGS"
210      if test "x$CC_KNOWS_CCACHE_TRICK" = xyes; then
211        AC_MSG_RESULT([yes])
212      else
213        AC_MSG_RESULT([no, disabling ccaching of precompiled headers])
214        CCACHE=
215      fi
216    fi
217  fi
218
219  if test "x$CCACHE" != x; then
220    CCACHE_SLOPPINESS=time_macros
221    CCACHE="CCACHE_COMPRESS=1 $SET_CCACHE_DIR CCACHE_SLOPPINESS=$CCACHE_SLOPPINESS $CCACHE"
222    CCACHE_FLAGS=-fpch-preprocess
223
224    if test "x$SET_CCACHE_DIR" != x; then
225      mkdir -p $CCACHE_DIR > /dev/null 2>&1
226      chmod a+rwxs $CCACHE_DIR > /dev/null 2>&1
227    fi
228  fi
229])
230
231AC_DEFUN_ONCE([BPERF_SETUP_PRECOMPILED_HEADERS],
232[
233
234  ###############################################################################
235  #
236  # Can the C/C++ compiler use precompiled headers?
237  #
238  AC_ARG_ENABLE([precompiled-headers], [AS_HELP_STRING([--disable-precompiled-headers],
239      [disable using precompiled headers when compiling C++ @<:@enabled@:>@])],
240      [ENABLE_PRECOMPH=${enable_precompiled_headers}], [ENABLE_PRECOMPH=yes])
241
242  USE_PRECOMPILED_HEADER=1
243  if test "x$ENABLE_PRECOMPH" = xno; then
244    USE_PRECOMPILED_HEADER=0
245  fi
246
247  if test "x$ENABLE_PRECOMPH" = xyes; then
248    # Check that the compiler actually supports precomp headers.
249    if test "x$GCC" = xyes; then
250      AC_MSG_CHECKING([that precompiled headers work])
251      echo "int alfa();" > conftest.h
252      $CXX -x c++-header conftest.h -o conftest.hpp.gch 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD
253      if test ! -f conftest.hpp.gch; then
254        USE_PRECOMPILED_HEADER=0
255        AC_MSG_RESULT([no])
256      else
257        AC_MSG_RESULT([yes])
258      fi
259      rm -f conftest.h conftest.hpp.gch
260    fi
261  fi
262
263  AC_SUBST(USE_PRECOMPILED_HEADER)
264])
265
266
267AC_DEFUN_ONCE([BPERF_SETUP_SMART_JAVAC],
268[
269  AC_ARG_WITH(sjavac-server-java, [AS_HELP_STRING([--with-sjavac-server-java],
270      [use this java binary for running the sjavac background server @<:@Boot JDK java@:>@])])
271
272  if test "x$with_sjavac_server_java" != x; then
273    SJAVAC_SERVER_JAVA="$with_sjavac_server_java"
274    FOUND_VERSION=`$SJAVAC_SERVER_JAVA -version 2>&1 | grep " version \""`
275    if test "x$FOUND_VERSION" = x; then
276      AC_MSG_ERROR([Could not execute server java: $SJAVAC_SERVER_JAVA])
277    fi
278  else
279    SJAVAC_SERVER_JAVA=""
280    # Hotspot specific options.
281    ADD_JVM_ARG_IF_OK([-verbosegc],SJAVAC_SERVER_JAVA,[$JAVA])
282    # JRockit specific options.
283    ADD_JVM_ARG_IF_OK([-Xverbose:gc],SJAVAC_SERVER_JAVA,[$JAVA])
284    SJAVAC_SERVER_JAVA="$JAVA $SJAVAC_SERVER_JAVA"
285  fi
286  AC_SUBST(SJAVAC_SERVER_JAVA)
287
288  if test "$MEMORY_SIZE" -gt "2500"; then
289    ADD_JVM_ARG_IF_OK([-d64],SJAVAC_SERVER_JAVA,[$SJAVAC_SERVER_JAVA])
290    if test "$JVM_ARG_OK" = true; then
291      JVM_64BIT=true
292      JVM_ARG_OK=false
293    fi
294  fi
295
296  if test "$JVM_64BIT" = true; then
297    if test "$MEMORY_SIZE" -gt "17000"; then
298      ADD_JVM_ARG_IF_OK([-Xms10G -Xmx10G],SJAVAC_SERVER_JAVA,[$SJAVAC_SERVER_JAVA])
299    fi
300    if test "$MEMORY_SIZE" -gt "10000" && test "$JVM_ARG_OK" = false; then
301      ADD_JVM_ARG_IF_OK([-Xms6G -Xmx6G],SJAVAC_SERVER_JAVA,[$SJAVAC_SERVER_JAVA])
302    fi
303    if test "$MEMORY_SIZE" -gt "5000" && test "$JVM_ARG_OK" = false; then
304      ADD_JVM_ARG_IF_OK([-Xms1G -Xmx3G],SJAVAC_SERVER_JAVA,[$SJAVAC_SERVER_JAVA])
305    fi
306    if test "$MEMORY_SIZE" -gt "3800" && test "$JVM_ARG_OK" = false; then
307      ADD_JVM_ARG_IF_OK([-Xms1G -Xmx2500M],SJAVAC_SERVER_JAVA,[$SJAVAC_SERVER_JAVA])
308    fi
309  fi
310  if test "$MEMORY_SIZE" -gt "2500" && test "$JVM_ARG_OK" = false; then
311    ADD_JVM_ARG_IF_OK([-Xms1000M -Xmx1500M],SJAVAC_SERVER_JAVA,[$SJAVAC_SERVER_JAVA])
312  fi
313  if test "$MEMORY_SIZE" -gt "1000" && test "$JVM_ARG_OK" = false; then
314    ADD_JVM_ARG_IF_OK([-Xms400M -Xmx1100M],SJAVAC_SERVER_JAVA,[$SJAVAC_SERVER_JAVA])
315  fi
316  if test "$JVM_ARG_OK" = false; then
317    ADD_JVM_ARG_IF_OK([-Xms256M -Xmx512M],SJAVAC_SERVER_JAVA,[$SJAVAC_SERVER_JAVA])
318  fi
319
320  AC_MSG_CHECKING([whether to use sjavac])
321  AC_ARG_ENABLE([sjavac], [AS_HELP_STRING([--enable-sjavac],
322      [use sjavac to do fast incremental compiles @<:@disabled@:>@])],
323      [ENABLE_SJAVAC="${enableval}"], [ENABLE_SJAVAC='no'])
324  AC_MSG_RESULT([$ENABLE_SJAVAC])
325  AC_SUBST(ENABLE_SJAVAC)
326
327  if test "x$ENABLE_SJAVAC" = xyes; then
328    SJAVAC_SERVER_DIR="$OUTPUT_ROOT/javacservers"
329  else
330    SJAVAC_SERVER_DIR=
331  fi
332  AC_SUBST(SJAVAC_SERVER_DIR)
333])
334