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Red Hat Bugzilla – Attachment 154809 Details for
Bug 239372
automount consumes excessive CPU time
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timedwait2.c
timedwait2.c (text/plain), 792 bytes, created by
IBM Bug Proxy
on 2007-05-16 12:01:18 UTC
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Description:
timedwait2.c
Filename:
MIME Type:
Creator:
IBM Bug Proxy
Created:
2007-05-16 12:01:18 UTC
Size:
792 bytes
patch
obsolete
>#include <stdio.h> >#include <stdlib.h> >#include <pthread.h> > >main() >{ > int i, err; > struct timespec wait; > long before, after; > > pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; > pthread_cond_t cond = PTHREAD_COND_INITIALIZER; > > err = pthread_mutex_lock(&mutex); > if (err) { > printf("pthread_mutex_lock returned %d\n", err); > exit(1); > } > before = time(NULL); > printf("Time before = %ld\n", before); > for (i=0; i<10; i++) { > wait.tv_sec = time(NULL) + 1; > wait.tv_nsec = 0; > err = pthread_cond_timedwait(&cond, &mutex, &wait); > if (err) { > printf("pthread_cond_timedwait returned %d\n", err); > } else { > printf("i = %d\t pthread_cond_timedwait success\n", i); > } > } > after = time(NULL); >// printf("Time after = %ld\n", after); > printf("Difference = %ld\n", after - before); >}
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