Author: Tobias Weber <tobias_webe...@gmx.de>
Branch: c8-overheads-instrumentation
Changeset: r2035:3a7fb0854cc6
Date: 2017-03-29 12:08 +0200
http://bitbucket.org/pypy/stmgc/changeset/3a7fb0854cc6/
Log: Fix overflow of nanoseconds when summing up measurements
diff --git a/c8/stm/timing.h b/c8/stm/timing.h
--- a/c8/stm/timing.h
+++ b/c8/stm/timing.h
@@ -18,7 +18,11 @@
sec_diff -= 1; \
} \
duration.tv_sec += sec_diff; \
- duration.tv_nsec += nanosec_diff;
+ duration.tv_nsec += nanosec_diff; \
+ if (duration.tv_nsec >= 1000000000) { \
+ duration.tv_sec += 1; \
+ duration.tv_nsec -= 1000000000; \
+ }
#define pause_timer() clock_gettime(CLOCK_MONOTONIC_RAW, &stop); \
get_duration()
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