* [LTP] [PATCH] getrusage04: initialise [us]last to current values
@ 2012-03-07 15:51 Jan Stancek
2012-03-08 2:48 ` Caspar Zhang
0 siblings, 1 reply; 4+ messages in thread
From: Jan Stancek @ 2012-03-07 15:51 UTC (permalink / raw)
To: ltp-list; +Cc: Jeffrey Burke
[-- Attachment #1: Type: text/plain, Size: 576 bytes --]
On slower machines, startup can take some time,
set last values to current [us]time before actual test.
This caused test to fail, because first delta contained
time spent by test starting up:
getrusage04 0 TINFO : utime: 999us; stime: 6998us
getrusage04 0 TINFO : utime: 999us; stime: 6998us
getrusage04 1 TFAIL : stime increased > 1000us: delta = 6998us
Signed-off-by: Jan Stancek <jstancek@redhat.com>
---
testcases/kernel/syscalls/getrusage/getrusage04.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
[-- Attachment #2: 0001-getrusage04-initialise-us-last-to-current-values.patch --]
[-- Type: text/x-patch, Size: 758 bytes --]
diff --git a/testcases/kernel/syscalls/getrusage/getrusage04.c b/testcases/kernel/syscalls/getrusage/getrusage04.c
index e142d22..9801192 100644
--- a/testcases/kernel/syscalls/getrusage/getrusage04.c
+++ b/testcases/kernel/syscalls/getrusage/getrusage04.c
@@ -100,10 +100,12 @@ int main(int argc, char *argv[])
for (lc = 0; TEST_LOOPING(lc); lc++) {
Tst_count = 0; i = 0;
- ulast = 0, slast = 0;
SAFE_GETRUSAGE(cleanup, RUSAGE_THREAD, &usage);
tst_resm(TINFO, "utime:%12luus; stime:%12luus",
usage.ru_utime.tv_usec, usage.ru_stime.tv_usec);
+ ulast = usage.ru_utime.tv_usec;
+ slast = usage.ru_stime.tv_usec;
+
while (i < RECORD_MAX) {
SAFE_GETRUSAGE(cleanup, RUSAGE_THREAD, &usage);
udelta = usage.ru_utime.tv_usec - ulast;
[-- Attachment #3: Type: text/plain, Size: 317 bytes --]
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^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [LTP] [PATCH] getrusage04: initialise [us]last to current values
2012-03-07 15:51 [LTP] [PATCH] getrusage04: initialise [us]last to current values Jan Stancek
@ 2012-03-08 2:48 ` Caspar Zhang
[not found] ` <4F582C39.10307@cn.fujitsu.com>
0 siblings, 1 reply; 4+ messages in thread
From: Caspar Zhang @ 2012-03-08 2:48 UTC (permalink / raw)
To: Jan Stancek; +Cc: ltp-list, Jeffrey Burke
On 03/07/2012 11:51 PM, Jan Stancek wrote:
>
> On slower machines, startup can take some time,
> set last values to current [us]time before actual test.
>
> This caused test to fail, because first delta contained
> time spent by test starting up:
> getrusage04 0 TINFO : utime: 999us; stime: 6998us
> getrusage04 0 TINFO : utime: 999us; stime: 6998us
> getrusage04 1 TFAIL : stime increased > 1000us: delta = 6998us
>
> Signed-off-by: Jan Stancek <jstancek@redhat.com>
> ---
> testcases/kernel/syscalls/getrusage/getrusage04.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
Hi Jan, committed.
Thanks,
Caspar
------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
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2012-03-07 15:51 [LTP] [PATCH] getrusage04: initialise [us]last to current values Jan Stancek
2012-03-08 2:48 ` Caspar Zhang
[not found] ` <4F582C39.10307@cn.fujitsu.com>
2012-03-08 12:24 ` Cyril Hrubis
2012-03-08 12:26 ` Cyril Hrubis
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