]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
perf tools: Use getconf to determine number of online CPUs
authorWill Deacon <will.deacon@arm.com>
Thu, 23 Apr 2015 14:00:16 +0000 (15:00 +0100)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Tue, 12 May 2015 21:11:16 +0000 (18:11 -0300)
commit466c1eb07f42bd27825af24d86b46d05e5e350b9
tree3fb966987c51f21b04a7bf60ee5c0b97f437b57c
parent85a9fb47c56aa5e43c54034002232c0585a4b781
perf tools: Use getconf to determine number of online CPUs

Parsing /proc/cpuinfo is a fiddly, arch-dependent business and a recent
change to get it working for Sparc broke arm and arm64 platforms.

Use sysconf to determine the number of online CPUs only parsing
/proc/cpuinfo when sysconf is not available.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <david.ahern@oracle.com>
Cc: Mark Rutland <Mark.Rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20150423140454.GJ1652@arm.com
[ Made it fall back to parsing /proc when getconf not found ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/Makefile