[RocksDB] make SetPerfLevel affect only the current thread

Summary: as title, make it easy to turn on/off profiling at per thread level. Test Plan: make check Reviewers: sdong, ljin Reviewed By: ljin CC: leveldb Differential Revision: https://reviews.facebook.net/D17469
vinniefalco · Apr 3, 2014 · 2fa5d41 · 2fa5d41
1 parent f76e402
commit 2fa5d41
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/util/perf_context.cc b/util/perf_context.cc
@@ -10,7 +10,7 @@
 namespace rocksdb {
 
 // by default, enable counts only
-PerfLevel perf_level = kEnableCount;
+__thread PerfLevel perf_level = kEnableCount;
 
 void SetPerfLevel(PerfLevel level) { perf_level = level; }
 

diff --git a/util/perf_context_imp.h b/util/perf_context_imp.h
@@ -9,7 +9,7 @@
 
 namespace rocksdb {
 
-extern enum PerfLevel perf_level;
+extern __thread PerfLevel perf_level;
 
 inline void StartPerfTimer(StopWatchNano* timer) {
   if (perf_level >= PerfLevel::kEnableTime) {