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zdtm: It's need to sleep between clock_gettime() in uptime_grow

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Kernel can't suspend container by design if calls clock_gettime()
in a loop, so we need to sleep between clock_gettime().

Signed-off-by: Victor Konyashkin  <vkonyashkin@parallels.com>
Acked-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
vkonyashkin
2012-07-31 14:05:43 +04:00
committed by Pavel Emelyanov
parent 4ee52f3403
commit 47d200c637
1 changed files with 10 additions and 1 deletions
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11
test/zdtm/live/static/uptime_grow.c
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@@ -13,8 +13,11 @@ const char *test_author = "Evgeny Antysev <eantyshev@parallels.com>";
int main(int argc, char **argv)
{
struct timespec tm_old, tm;
struct timespec tm_old, tm, ts;
double diff_nsec;
ts.tv_sec = 0;
ts.tv_nsec = 1000000;
test_init(argc, argv);
if (clock_gettime(CLOCK_MONOTONIC, &tm_old)) {
@@ -36,6 +39,12 @@ int main(int argc, char **argv)
exit(1);
}
tm_old = tm;
/*
Kernel can't suspend container by design if calls
clock_gettime() in a loop, so we need to sleep
between clock_gettime().
*/
nanosleep(&ts, NULL);
}
pass();
return 0;