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tests: add SCHED_BATCH test

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Reference: https://bugzilla.redhat.com/show_bug.cgi?id=741090
Acked-by:: Jaromir Capik <jcapik@redhat.com>
Acked-by:  Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Mike Fleetwood <mike.fleetwood@googlemail.com>
This commit is contained in:
Mike Fleetwood
2011-09-25 05:15:43 -04:00
committed by Sami Kerola
parent 3c2377ca15
commit 23d2e0b0b7
4 changed files with 57 additions and 0 deletions
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39
testsuite/ps.test/test-schedbatch.c Normal file
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@@ -0,0 +1,39 @@
/* test-schedbatch.c - Create a process using SCHED_BATCH scheduler
* policy and nice value.
* Compile: gcc -o test-schedbatch -Wall test-schedbatch.c
* Usage: ./test-schedbatch [ <NICE> ]
*
* Author: Mike Fleetwood
* https://bugzilla.redhat.com/show_bug.cgi?id=741090
*/
#define _GNU_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <sched.h>
#include <sys/time.h>
#include <sys/resource.h>
int main(int argc, const char *argv[])
{
int nice = 19;
struct sched_param sp;
char msg[50];
if (argc >= 2) {
nice = atoi(argv[1]);
}
sp.sched_priority = 0;
if (sched_setscheduler(0, SCHED_BATCH, &sp)) {
perror("sched_setscheduler(0,SCHED_BATCH,{.sched_priority=0}");
}
if (setpriority(PRIO_PROCESS, 0, nice) || errno) {
(void)snprintf(msg, sizeof(msg),
"setpriority(PRIO_PROCESS, 0, %d)", nice);
perror(msg);
}
while (1) {
getchar();
}
}