Messages in this thread | | | Date | Thu, 14 May 2020 15:39:42 -0500 | From | Josh Poimboeuf <> | Subject | Re: [PATCH] tools/perf-bench: Add basic syscall benchmark |
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On Fri, Mar 08, 2019 at 10:17:47AM -0800, Davidlohr Bueso wrote: > On Thu, 07 Mar 2019, Arnaldo Carvalho de Melo wrote: > > You forgot to update tools/perf/Documentation/perf-bench.txt, and please > > take a look at tools/perf/util/pmu.c convert_scale() to see how to save > > the current locale, set the one you want, then restore the previous one, > > so that at the end of this benchmark the environment is back to where it > > was. > > Here's an updated version with the corresponding docs, but I removed the > setlocale() - doesn't seem worth it; I hope Mel has no strong objection. > > Thanks. > > -------8<---------------------------------------------------------- > [PATCH v2] tools/perf-bench: Add basic syscall benchmark > > The usefulness of having a standard way of testing syscall performance > has come up from time to time[0]. Furthermore, some of our testing > machinery (such as 'mmtests') already makes use of a simplified version > of the microbenchmark. This patch mainly takes the same idea to measure > syscall throughput compatible with 'perf-bench' via getppid(2), yet > without any of the additional template stuff from Ingo's version (based > on numa.c). The code is identical to what mmtests uses. > > [0] https://lore.kernel.org/lkml/20160201074156.GA27156@gmail.com/ > > Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
It would be nice to see this merged. I posted something very similar back in 2016.
-- Josh
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