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| author | Ali Saidi <Ali.Saidi@ARM.com> | 2012-06-05 01:23:08 -0400 |
|---|---|---|
| committer | Ali Saidi <Ali.Saidi@ARM.com> | 2012-06-05 01:23:08 -0400 |
| commit | 1b370431d0ac51eb54bfbf17247f935d48995a34 (patch) | |
| tree | e9b90a8f9bdf914f29a20b3c287dae5b5a16db4c /SConstruct | |
| parent | d6997777bee827c89578cf730b186991485c647c (diff) | |
| download | gem5-1b370431d0ac51eb54bfbf17247f935d48995a34.tar.xz | |
sim: Remove FastAlloc
While FastAlloc provides a small performance increase (~1.5%) over regular malloc it isn't thread safe.
After removing FastAlloc and using tcmalloc I've seen a performance increase of 12% over libc malloc
when running twolf for ARM.
Diffstat (limited to 'SConstruct')
| -rwxr-xr-x | SConstruct | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/SConstruct b/SConstruct index 415af6ca7..2b3f6a8d8 100755 --- a/SConstruct +++ b/SConstruct @@ -833,11 +833,6 @@ sticky_vars.AddVariables( ListVariable('CPU_MODELS', 'CPU models', sorted(n for n,m in CpuModel.dict.iteritems() if m.default), sorted(CpuModel.list)), - BoolVariable('NO_FAST_ALLOC', 'Disable fast object allocator', False), - BoolVariable('FORCE_FAST_ALLOC', - 'Enable fast object allocator, even for gem5.debug', False), - BoolVariable('FAST_ALLOC_STATS', 'Enable fast object allocator statistics', - False), BoolVariable('EFENCE', 'Link with Electric Fence malloc debugger', False), BoolVariable('SS_COMPATIBLE_FP', @@ -852,8 +847,7 @@ sticky_vars.AddVariables( ) # These variables get exported to #defines in config/*.hh (see src/SConscript). -export_vars += ['USE_FENV', 'NO_FAST_ALLOC', 'FORCE_FAST_ALLOC', - 'FAST_ALLOC_STATS', 'SS_COMPATIBLE_FP', +export_vars += ['USE_FENV', 'SS_COMPATIBLE_FP', 'TARGET_ISA', 'CP_ANNOTATE', 'USE_POSIX_CLOCK' ] ################################################### |