From fb69749415ae2bd7c3180605d01a5a39f3bd988f Mon Sep 17 00:00:00 2001 From: Nathan Zimmer Date: Mon, 15 Apr 2013 09:53:34 -0500 Subject: [PATCH] btreplay: use sysconf to get the number of configured cpus We should use the standard methods for getting the number of cpus in the system when they are available. It is good practice to leave the old ways in place for people stuck on older systems. Cc: Jens Axboe Signed-off-by: Nathan Zimmer Signed-off-by: Jens Axboe --- btreplay/btreplay.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/btreplay/btreplay.c b/btreplay/btreplay.c index 6f0ba63..fe6cd80 100644 --- a/btreplay/btreplay.c +++ b/btreplay/btreplay.c @@ -502,6 +502,9 @@ static inline void start_iter(void) */ static void get_ncpus(void) { +#ifdef _SC_NPROCESSORS_CONF + ncpus = sysconf(_SC_NPROCESSORS_CONF); +#else long last_cpu; cpu_set_t cpus; @@ -515,6 +518,7 @@ static void get_ncpus(void) if (CPU_ISSET( last_cpu, &cpus) ) ncpus = last_cpu; ncpus++; +#endif if (ncpus == 0) { fatal(NULL, ERR_SYSCALL, "Insufficient number of CPUs\n"); /*NOTREACHED*/ -- 2.25.1