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tsan: query RSS every 100ms 

Now that it become faster, it's OK to query it every 100ms again.

llvm-svn: 213943
This commit is contained in:
Dmitry Vyukov 2014-07-25 13:48:25 +00:00
parent fe17080c88
commit 6819cf4974
1 changed files with 1 additions and 3 deletions
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4
compiler-rt/lib/tsan/rtl/tsan_rtl.cc
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@ -157,7 +157,6 @@ static void BackgroundThread(void *arg) {
} }
u64 last_flush = NanoTime(); u64 last_flush = NanoTime();
u64 last_rss_check = NanoTime();
uptr last_rss = 0; uptr last_rss = 0;
for (int i = 0; for (int i = 0;
atomic_load(&ctx->stop_background_thread, memory_order_relaxed) == 0; atomic_load(&ctx->stop_background_thread, memory_order_relaxed) == 0;
@ -175,8 +174,7 @@ static void BackgroundThread(void *arg) {
} }
} }
// GetRSS can be expensive on huge programs, so don't do it every 100ms. // GetRSS can be expensive on huge programs, so don't do it every 100ms.
if (flags()->memory_limit_mb > 0 && last_rss_check + 1000 * kMs2Ns < now) { if (flags()->memory_limit_mb > 0) {
last_rss_check = now;
uptr rss = GetRSS(); uptr rss = GetRSS();
uptr limit = uptr(flags()->memory_limit_mb) << 20; uptr limit = uptr(flags()->memory_limit_mb) << 20;
if (flags()->verbosity > 0) { if (flags()->verbosity > 0) {