Author: cbieneman
Date: Wed Apr 13 12:12:56 2016
New Revision: 266213
URL: http://llvm.org/viewvc/llvm-project?rev=266213&view=rev
Log:
[OrderFiles] Don't allow lit to run dtrace multithreaded
Dtrace is implemented to try and minimize performance impact on the process
being traced. This results in dtrace dropping samples if it is taking too many
CPU resources. Multi-threading dtrace increases the sample drop rate
dramatically.
Modified:
cfe/trunk/utils/perf-training/CMakeLists.txt
Modified: cfe/trunk/utils/perf-training/CMakeLists.txt
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/utils/perf-training/CMakeLists.txt?rev=266213&r1=266212&r2=266213&view=diff
==============================================================================
--- cfe/trunk/utils/perf-training/CMakeLists.txt (original)
+++ cfe/trunk/utils/perf-training/CMakeLists.txt Wed Apr 13 12:12:56 2016
@@ -48,6 +48,7 @@ if(DTRACE)
add_lit_testsuite(generate-dtrace-logs "Generating clang dtrace data"
${CMAKE_CURRENT_BINARY_DIR}/order-files/
+ ARGS -j 1
DEPENDS clang clear-dtrace-logs
)
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