[PATCH 0/2] tracing/workqueue fixes

From: Anton Blanchard
Date: Mon Sep 21 2009 - 22:44:07 EST



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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/