| fd2e3e98c1decf5bc600b5962cbbbe8374b5cd3e |
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18-Jan-2018 |
Eric Fiselier <eric@efcs.ca> |
Update Google Benchmark library
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@322812 91177308-0d34-0410-b5e6-96231b3b80d8
/external/libcxx/utils/google-benchmark/tools/compare_bench.py
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| 688edc78f9763a124f851a360bf47867fb3f27e8 |
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18-Apr-2017 |
Eric Fiselier <eric@efcs.ca> |
Update google benchmark
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@300530 91177308-0d34-0410-b5e6-96231b3b80d8
/external/libcxx/utils/google-benchmark/tools/compare_bench.py
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| 30b48cb1b3a0c4fcc1887259bd215ad8738d21b4 |
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09-Aug-2016 |
Eric Fiselier <eric@efcs.ca> |
Update in-tree Google Benchmark to current ToT.
I've put some work into the Google Benchmark library in order to make it easier
to benchmark libc++. These changes have already been upstreamed into
Google Benchmark and this patch applies the changes to the in-tree version.
The main improvement in the addition of a 'compare_bench.py' script which
makes it very easy to compare benchmarks. For example to compare the native
STL to libc++ you would run:
`$ compare_bench.py ./util_smartptr.native.out ./util_smartptr.libcxx.out`
And the output would look like:
RUNNING: ./util_smartptr.native.out
Benchmark Time CPU Iterations
----------------------------------------------------------------
BM_SharedPtrCreateDestroy 62 ns 62 ns 10937500
BM_SharedPtrIncDecRef 31 ns 31 ns 23972603
BM_WeakPtrIncDecRef 28 ns 28 ns 23648649
RUNNING: ./util_smartptr.libcxx.out
Benchmark Time CPU Iterations
----------------------------------------------------------------
BM_SharedPtrCreateDestroy 46 ns 46 ns 14957265
BM_SharedPtrIncDecRef 31 ns 31 ns 22435897
BM_WeakPtrIncDecRef 34 ns 34 ns 21084337
Comparing ./util_smartptr.native.out to ./util_smartptr.libcxx.out
Benchmark Time CPU
-----------------------------------------------------
BM_SharedPtrCreateDestroy -0.26 -0.26
BM_SharedPtrIncDecRef +0.00 +0.00
BM_WeakPtrIncDecRef +0.21 +0.21
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@278147 91177308-0d34-0410-b5e6-96231b3b80d8
/external/libcxx/utils/google-benchmark/tools/compare_bench.py
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