Re: [RFC] Add markers into semaphore primitives

2007-11-13 Thread Peter Zijlstra
On Mon, 2007-11-12 at 16:52 -0800, David J. Wilder wrote: > This patch adds several markers around semaphore primitives. > Along with a tracing application this patch can be useful for measuring > kernel semaphore usage and contention. It would be much better to help in eradicating every last sem

Re: [RFC] Add markers into semaphore primitives

2007-11-13 Thread Mathieu Desnoyers
* David J. Wilder ([EMAIL PROTECTED]) wrote: > This patch adds several markers around semaphore primitives. > Along with a tracing application this patch can be useful for measuring > kernel semaphore usage and contention. > Yup, looks good. I'll take it into my instrumentation patchset. I'll so

Re: [RFC] Add markers into semaphore primitives

2007-11-13 Thread Frank Ch. Eigler
"David J. Wilder" <[EMAIL PROTECTED]> writes: > This patch adds several markers around semaphore primitives. Along > with a tracing application this patch can be useful for measuring > kernel semaphore usage and contention. [...] In order to evaluate the permanent placement of markers, more in

[RFC] Add markers into semaphore primitives

2007-11-12 Thread David J. Wilder
This patch adds several markers around semaphore primitives. Along with a tracing application this patch can be useful for measuring kernel semaphore usage and contention. Signed-off-by: Mike Mason <[EMAIL PROTECTED]> Signed-off-by: David Wilder <[EMAIL PROTECTED]> --- lib/semaphore-sleepers.c |