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Allow configuring page size to 4K, 8K, 16K, 32K, 64K, 128K and 256K

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Henrik Edin 2019-01-29 13:25:40 -05:00 committed by Aliaksey Kandratsenka
parent cf2df3b000
commit d3fefdb694
4 changed files with 20 additions and 17 deletions
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5
INSTALL
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@ -113,8 +113,9 @@ To build libtcmalloc with large pages you need to use the
./configure <other flags> --with-tcmalloc-pagesize=32
The ARG argument can be 8, 32 or 64 which sets the internal page size to
8K, 32K and 64K repectively. The default is 8K.
The ARG argument can be 4, 8, 16, 32, 64, 128 or 256 which sets the
internal page size to 4K, 8K, 16K, 32K, 64K, 128K and 256K respectively.
The default is 8K.
*** SMALL TCMALLOC CACHES: TRADING SPACE FOR TIME

17
configure.ac
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@ -109,7 +109,7 @@ AC_ARG_ENABLE([libunwind],
[enable_libunwind="$default_enable_libunwind"])
AC_ARG_WITH([tcmalloc-pagesize],
[AS_HELP_STRING([--with-tcmalloc-pagesize],
[Set the tcmalloc internal page size to 8K, 32K or 64K])],
[Set the tcmalloc internal page size to 4K, 8K, 16K, 32K, 64K, 128K or 256K])],
[],
[with_tcmalloc_pagesize=$default_tcmalloc_pagesize])
AC_ARG_WITH([tcmalloc-alignment],
@ -119,15 +119,22 @@ AC_ARG_WITH([tcmalloc-alignment],
[with_tcmalloc_alignment=$default_tcmalloc_alignment])
case "$with_tcmalloc_pagesize" in
4)
AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 12);;
8)
#Default tcmalloc page size.
;;
16)
AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 14);;
32)
AC_DEFINE(TCMALLOC_32K_PAGES, 1,
[Define 32K of internal pages size for tcmalloc]);;
AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 15);;
64)
AC_DEFINE(TCMALLOC_64K_PAGES, 1,
[Define 64K of internal pages size for tcmalloc]);;
AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 16);;
128)
AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 17);;
256)
AC_DEFINE(TCMALLOC_PAGE_SIZE_SHIFT, 18,
[Define internal page size for tcmalloc as number of left bitshift]);;
*)
AC_MSG_WARN([${with_tcmalloc_pagesize}K size not supported, using default tcmalloc page size.])
esac

6
src/common.h
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@ -72,10 +72,8 @@ static const size_t kMinAlign = 16;
// the thread cache allowance to avoid passing more free ranges to and from
// central lists. Also, larger pages are less likely to get freed.
// These two factors cause a bounded increase in memory use.
#if defined(TCMALLOC_32K_PAGES)
static const size_t kPageShift = 15;
#elif defined(TCMALLOC_64K_PAGES)
static const size_t kPageShift = 16;
#if defined(TCMALLOC_PAGE_SIZE_SHIFT)
static const size_t kPageShift = TCMALLOC_PAGE_SIZE_SHIFT;
#else
static const size_t kPageShift = 13;
#endif

9
src/windows/config.h
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@ -316,15 +316,12 @@
/* the namespace where STL code like vector<> is defined */
#define STL_NAMESPACE std
/* Define 32K of internal pages size for tcmalloc */
/* #undef TCMALLOC_32K_PAGES */
/* Define 64K of internal pages size for tcmalloc */
/* #undef TCMALLOC_64K_PAGES */
/* Define 8 bytes of allocation alignment for tcmalloc */
/* #undef TCMALLOC_ALIGN_8BYTES */
/* Define internal page size for tcmalloc as number of left bitshift */
/* #undef TCMALLOC_PAGE_SIZE_SHIFT */
/* Version number of package */
#define VERSION "2.7"