Messages in this thread | | | Date | Tue, 22 Sep 2009 12:39:20 +1000 | From | Anton Blanchard <> | Subject | [PATCH 0/2] tracing/workqueue fixes |
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Hi,
The workqueue tracepoint patchset looks to have stalled for a bit. While we discuss how much functionality we want in kernel, I think we have a solid case for tracing the latency caused by workqueue events.
For an example we can look at the rt_worker_func work. As memory grew its duration would also grow, and I measured 14ms spikes on one box. Once found we placed a cap on it:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c9503e0fe052020e0294cd07d0ecd982eb7c9177
The following patches add entry and exit tracepoints so we can find these things easily.
Anton
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