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sim: Add support for tcmalloc if it's installed and available.

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This package is available in Ubuntu, Debian, and Redhat as google-perftools.
With multiple tests on a single machine I've seen a little over 10% performance
gain with tcmalloc.
This commit is contained in:
Ali Saidi 2012-06-05 01:23:09 -04:00
parent 1b370431d0
commit aec7a44116
1 changed files with 11 additions and 0 deletions
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11
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@ -749,6 +749,14 @@ have_posix_clock = \
conf.CheckLibWithHeader('rt', 'time.h', 'C', conf.CheckLibWithHeader('rt', 'time.h', 'C',
'clock_nanosleep(0,0,NULL,NULL);') 'clock_nanosleep(0,0,NULL,NULL);')
if conf.CheckLib('tcmalloc_minimal'):
have_tcmalloc = True
else:
have_tcmalloc = False
print termcap.Yellow + termcap.Bold + \
"You can get a 12% performance improvement by installing tcmalloc "\
"(google-perftools package on Ubuntu or RedHat)." + termcap.Normal
if not have_posix_clock: if not have_posix_clock:
print "Can't find library for POSIX clocks." print "Can't find library for POSIX clocks."
@ -1011,6 +1019,9 @@ for variant_path in variant_paths:
if env['USE_SSE2']: if env['USE_SSE2']:
env.Append(CCFLAGS=['-msse2']) env.Append(CCFLAGS=['-msse2'])
if have_tcmalloc:
env.Append(LIBS=['tcmalloc_minimal'])
# The src/SConscript file sets up the build rules in 'env' according # The src/SConscript file sets up the build rules in 'env' according
# to the configured variables. It returns a list of environments, # to the configured variables. It returns a list of environments,
# one for each variant build (debug, opt, etc.) # one for each variant build (debug, opt, etc.)