[PATCH 11/45] libcsupport: Avoid Giant lock in _times()
Sebastian Huber
sebastian.huber at embedded-brains.de
Fri May 15 11:41:11 UTC 2015
---
cpukit/libcsupport/src/__times.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/cpukit/libcsupport/src/__times.c b/cpukit/libcsupport/src/__times.c
index 5a1f9eb..895ee6b 100644
--- a/cpukit/libcsupport/src/__times.c
+++ b/cpukit/libcsupport/src/__times.c
@@ -66,9 +66,10 @@ clock_t _times(
#ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
{
- Timestamp_Control per_tick;
- uint32_t ticks_of_executing;
- uint32_t fractional_ticks;
+ Timestamp_Control per_tick;
+ uint32_t ticks_of_executing;
+ uint32_t fractional_ticks;
+ Per_CPU_Control *cpu_self;
_Timestamp_Set(
&per_tick,
@@ -78,7 +79,7 @@ clock_t _times(
TOD_NANOSECONDS_PER_SECOND)
);
- _Thread_Disable_dispatch();
+ cpu_self = _Thread_Dispatch_disable();
executing = _Thread_Executing;
_Thread_Update_cpu_time_used(
executing,
@@ -90,7 +91,7 @@ clock_t _times(
&ticks_of_executing,
&fractional_ticks
);
- _Thread_Enable_dispatch();
+ _Thread_Dispatch_enable( cpu_self );
ptms->tms_utime = ticks_of_executing * us_per_tick;
}
#else
--
1.8.4.5
More information about the devel
mailing list