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authorRobert Richter <robert.richter@amd.com>2012-08-22 09:23:51 +0200
committerRobert Richter <robert.richter@amd.com>2012-08-27 14:49:39 +0200
commit61bccf191fe2d55b8d003b4ea3f94913745aaefa (patch)
treef91fb75d321f775bf4ea59e35c0534320d7c4597 /fs/hfs/brec.c
parent81ff3478d9ba7f0b48b0abef740e542fd83adf79 (diff)
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op-kernel-dev-61bccf191fe2d55b8d003b4ea3f94913745aaefa.tar.gz
oprofile: Remove 'WQ on CPUx, prefer CPUy' warning
Under certain workloads we see the following warnings: WQ on CPU0, prefer CPU1 WQ on CPU0, prefer CPU2 WQ on CPU0, prefer CPU3 It warns the user that the wq to access a per-cpu buffers runs not on the same cpu. This happens if the wq is rescheduled on a different cpu than where the buffer is located. This was probably implemented to detect performance issues. Not sure if there actually is one as the buffers are copied to a single buffer anyway which should be the actual bottleneck. We wont change WQ implementation. Since a user can do nothing the warning is pointless. Removing it. Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Robert Richter <robert.richter@amd.com>
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