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- If given an arg, don't bind to curcpu.

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- Set line buffering on stdout.
This commit is contained in:
ad 2009-01-28 21:52:49 +00:00
parent 530cac2556
commit 5c71c34a14
1 changed files with 16 additions and 13 deletions
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29
regress/sys/kern/latency2/latency2.c
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@ -1,7 +1,7 @@
/* $NetBSD: latency2.c,v 1.3 2008/06/16 01:41:21 rmind Exp $ */
/* $NetBSD: latency2.c,v 1.4 2009/01/28 21:52:49 ad Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -96,6 +96,8 @@ main(int argc, char *argv[])
cpuset_t *cs;
int cpuid;
(void)setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
if (geteuid() != 0) {
errx(1, "run me as root");
}
@ -110,16 +112,18 @@ main(int argc, char *argv[])
err(1, "siginal");
}
cs = cpuset_create();
if (cs == NULL) {
err(1, "cpuset_create");
}
cpuset_zero(cs);
cpuid = pthread_curcpu_np();
cpuset_set(cpuid, cs);
if (_sched_setaffinity(0, 0, cpuset_size(cs), cs) < 0) {
err(1, "_sched_setaffinity");
if (argc < 2) {
cs = cpuset_create();
if (cs == NULL) {
err(1, "cpuset_create");
}
cpuset_zero(cs);
cpuid = pthread_curcpu_np();
cpuset_set(cpuid, cs);
if (_sched_setaffinity(0, 0, cpuset_size(cs), cs) < 0) {
err(1, "_sched_setaffinity");
}
cpuset_destroy(cs);
}
sp.sched_priority = sched_get_priority_max(SCHED_FIFO) - 2;
@ -142,7 +146,6 @@ main(int argc, char *argv[])
}
} while (!done);
cpuset_destroy(cs);
printf("\nmin=%ldns, max=%ldns, mean=%ldns\n", min, max, sum / samples);
return 0;
}