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, 17 Jun 2011 14:24:19 +1000 From: Benjamin Herrenschmidt <benh@...nel.crashing.org> To: deepthi@...ux.vnet.ibm.com Cc: linuxppc-dev@...abs.org, linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] perf_events: Enable idle state tracing for pseries (ppc64) On Wed, 2011-06-01 at 18:05 +0530, Deepthi Dharwar wrote: > Hi, > > Please find below a patch, which has perf_events added for pseries (ppc64) > platform in order to emit the trace required for perf timechart. > It essentially enables perf timechart for pseries platfrom to analyse > power savings events like cpuidle states. Unless I'm mistaken, you added traces to dedicated CPU idle sleep but not shared processor. Any reason ? Also I don't really know that tracing stuff but what's the point of having start/end _and trace_cpu_idle if you're going to always start & end around a single occurence of trace_cpu_idle ? Wouldn't there be a way to start/end and then trace the snooze and subsequent cede within the same start/end section or that makes no sense ? Also would there be any interest in doing the tracing more generically in idle.c ? Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists