Messages in this thread | | | Date | Thu, 9 Sep 2010 19:42:44 +0200 | Subject | Re: perf events over (net) console? | From | Harald Gustafsson <> |
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2010/9/9 Arnaldo Carvalho de Melo <acme@ghostprotocols.net>: > Isn't this what Tom Zanussi's live mode, that we have already special > casing 'perf record -' does?
> Harald, can you please take a look at the comment for these commits: > > commit 454c407ec17a0c63e4023ac0877d687945a7df4a > Author: Tom Zanussi <tzanussi@gmail.com> > Date: Sat May 1 01:41:20 2010 -0500 > > perf: add perf-inject builtin > > commit 529870e37473a9fc609078f03cc5b4148cf06a87 > Author: Tom Zanussi <tzanussi@gmail.com> > Date: Thu Apr 1 23:59:16 2010 -0500 > > perf record: Introduce special handling for pipe output > > commit 8dc58101f2c838355d44402aa77646649d10dbec > Author: Tom Zanussi <tzanussi@gmail.com> > Date: Thu Apr 1 23:59:15 2010 -0500 > > perf: Add pipe-specific header read/write and event processing code > > Using live mode you can stream to a perf.data for later analisys or do > it live, piping it to trace scripts, etc.
I took a quick look and it seems promising, thanks for the info, I'll do some tests tomorrow and get back with some results.
/Harald
> Doing it using splice, talking directly to an in kernel mini-server, etc > are all optimizations that we should think about, but if you can try > using the live mode and see if it is ok, that would be good. > > A mini binary with just record can come in handy if you like and should > be rather easy to build, please let me know if you think it is a good > idea and if you need help, lemme know. > > - Arnaldo > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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