lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 19 Jun 2015 13:22:32 -0300 From: Arnaldo Carvalho de Melo <acme@...nel.org> To: Adrian Hunter <adrian.hunter@...el.com> Cc: Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...hat.com> Subject: Re: [PATCH V6 08/17] perf tools: Add Intel PT support Em Fri, Jun 19, 2015 at 01:04:51PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Fri, May 29, 2015 at 04:33:36PM +0300, Adrian Hunter escreveu: > > Add support for Intel Processor Trace. > > > > Intel PT support fits within the new auxtrace infrastructure. > > Recording is supporting by identifying the Intel PT PMU, > > parsing options and setting up events. Decoding is supported > > by queuing up trace data by cpu or thread and then decoding > > synchronously delivering synthesized event samples into the > > session processing for tools to consume. > > So, at this point what commands should I use to test this? I expected to > be able to have some command here, in this changeset log, telling me > that what has been applied so far + this "Add Intel PT support", can be > used in such and such a fashion, obtaining this and that output. > > Now I'll go back and look at the cover letter to see what I can do at > this point and with access to a Broadwell class machine. Trying to test something at this point: [root@...f4 ~]# find /sys -name "*intel_pt*" /sys/bus/event_source/devices/intel_pt /sys/devices/intel_pt [root@...f4 ~]# perf record -e intel_pt//u ls invalid or unsupported event: 'intel_pt//u' Run 'perf list' for a list of valid events usage: perf record [<options>] [<command>] or: perf record [<options>] -- <command> [<options>] -e, --event <event> event selector. use 'perf list' to list available events [root@...f4 ~]# uname -a Linux perf4 4.1.0-rc8 #1 SMP Tue Jun 16 19:47:25 EDT 2015 x86_64 x86_64 x86_64 GNU/Linux [root@...f4 ~]# The kernel seems to have the intel_pt stuff and what I have in the tooling side is at my tmp.perf/pt branch, will continue after lunch. - Arnaldo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists