linux-kernel - RE: [perfmon2] [announce] Performance Counters for Linux, v6

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <57C9024A16AD2D4C97DC78E552063EA35F1F9374@orsmsx505.amr.corp.intel.com>
Date:	Mon, 26 Jan 2009 11:39:06 -0800
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>
CC:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Papi <ptools-perfapi@...utk.edu>,
	"David S. Miller" <davem@...emloft.net>,
	Mike Galbraith <efault@....de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Eric Dumazet <dada1@...mosbay.com>,
	Paul Mackerras <paulus@...ba.org>, Peter Anvin <hpa@...or.com>,
	"eranian@...il.com" <eranian@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"perfmon2-devel@...ts.sourceforge.net" 
	<perfmon2-devel@...ts.sourceforge.net>,
	Arjan van de Ven <arjan@...radead.org>
Subject: RE: [perfmon2] [announce] Performance Counters for Linux, v6

> - or the PMU capability is expressed as a special counter type (if it's
>   useful enough) - and then either the write() method or ioctl is extended
>   to express attributes we want to set/change while a counter is running.

The product of:
        {exotic PMU modes} * {creative performance measurement ideas}
will produce a large number of candidates for these special counters
(at least on ia64 ... which has a large number of exotic PMU options).

I don't think that I'm qualified to judge which of them are "useful enough"
to warrant a special counter type.

-Tony
--
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/