tree 14c0b359ba8603f9bb40eb82b73c6de1acf8c1e9
parent 827f3b4974c5db2968d4979fe6a0ae00ab37bdd8
author Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> 1258688237 +0900
committer Ingo Molnar <mingo@elte.hu> 1258879266 +0100

perf bench: Make the mem/memcpy tests more user-friendly

mem-memcpy.c uses perf event system calls to obtain CPU clocks.
And it suddenly dies with BUG_ON() when it running on Linux
doesn't support perf event.

Also fail at calloc() can occur easily when too large
length is passed. Fail of calloc() causes sudden death
with assert().

These behaviours are not friendly. So I fixed the treating of
errors.

Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <1258688237-3797-1-git-send-email-mitake@dcl.info.waseda.ac.jp>
[ v2: improved a few small details ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>