Messages in this thread | | | Date | Thu, 6 Apr 2023 11:55:19 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC PATCH 1/1] smp: Add tracepoints for functions called with smp_call_function*() |
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On Thu, Apr 06, 2023 at 04:57:18AM -0300, Leonardo Bras wrote: > When running RT workloads in isolated CPUs, many cases of deadline misses > are caused by remote CPU requests such as smp_call_function*(). > > For those cases, having the names of those functions running around the > deadline miss moment could help finding a target for the next improvements. > > Add tracepoints for acquiring the funtion name & argument before entry and > after exitting the called function. > > Signed-off-by: Leonardo Bras <leobras@redhat.com>
How are the patches queued there not sufficient?
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=smp/core
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