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| author | Laurent Stacul <laurent.stacul@amadeus.com> | 2018-10-15 16:56:18 +0200 |
|---|---|---|
| committer | Aliaksey Kandratsenka <alkondratenko@gmail.com> | 2019-02-10 11:14:23 -0800 |
| commit | 5574c87e39ee592c909cb48245c1d91e90ddaf4d (patch) | |
| tree | 2eedd135e08a08f2a484dece827d111201d33582 | |
| parent | e9ab4c53041ac62feefbbb076d326e9a77dd1567 (diff) | |
| download | gperftools-5574c87e39ee592c909cb48245c1d91e90ddaf4d.tar.gz | |
Compile time aggressive decommit option
[alkondratenko@gmail.com: performed s/agressive/aggressive/g]
Signed-off-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
| -rw-r--r-- | configure.ac | 11 | ||||
| -rw-r--r-- | src/static_vars.cc | 10 |
2 files changed, 20 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 22992fc..00b4e7b 100644 --- a/configure.ac +++ b/configure.ac @@ -667,6 +667,17 @@ AC_ARG_ENABLE([large-alloc-report], AS_IF([test "x$enable_large_alloc_report" = xyes], [AC_DEFINE([ENABLE_LARGE_ALLOC_REPORT], 1, [report large allocation])]) +# Enable aggressive decommit by default +AC_ARG_ENABLE([aggressive-decommit-by-default], + [AS_HELP_STRING([--enable-aggressive-decommit-by-default], + [enable aggressive decommit by default])], + [enable_aggressive_decommit_by_default="$enableval"], + [enable_aggressive_decommit_by_default=no]) +AS_IF([test "x$enable_aggressive_decommit_by_default" = xyes], + [AC_DEFINE([ENABLE_AGGRESSIVE_DECOMMIT_BY_DEFAULT], + 1, + [enable aggressive decommit by default])]) + # Write generated configuration file AC_CONFIG_FILES([Makefile src/gperftools/tcmalloc.h src/windows/gperftools/tcmalloc.h]) diff --git a/src/static_vars.cc b/src/static_vars.cc index 5da3a7b..ab5a9cc 100644 --- a/src/static_vars.cc +++ b/src/static_vars.cc @@ -91,9 +91,17 @@ void Static::InitStaticVars() { new (&pageheap_.memory) PageHeap; +#if defined(ENABLE_AGGRESSIVE_DECOMMIT_BY_DEFAULT) + const bool kDefaultAggressiveDecommit = true; +#else + const bool kDefaultAggressiveDecommit = false; +#endif + + bool aggressive_decommit = tcmalloc::commandlineflags::StringToBool( - TCMallocGetenvSafe("TCMALLOC_AGGRESSIVE_DECOMMIT"), false); + TCMallocGetenvSafe("TCMALLOC_AGGRESSIVE_DECOMMIT"), + kDefaultAggressiveDecommit); pageheap()->SetAggressiveDecommit(aggressive_decommit); |