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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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61bccf191f
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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| .. | ||
| buffer_sync.c | ||
| buffer_sync.h | ||
| cpu_buffer.c | ||
| cpu_buffer.h | ||
| event_buffer.c | ||
| event_buffer.h | ||
| nmi_timer_int.c | ||
| oprof.c | ||
| oprof.h | ||
| oprofile_files.c | ||
| oprofile_perf.c | ||
| oprofile_stats.c | ||
| oprofile_stats.h | ||
| oprofilefs.c | ||
| timer_int.c | ||