linux-kernel - Re: [PATCH tip/core/rcu 2/6] rcu: prevent RCU IPI storms in presence of high call

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: <20091015112015.GB29080@elte.hu>
Date:	Thu, 15 Oct 2009 13:20:15 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Nick Piggin <npiggin@...e.de>
Cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...ymtl.ca, josh@...htriplett.org,
	dvhltc@...ibm.com, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, jens.axboe@...cle.com
Subject: Re: [PATCH tip/core/rcu 2/6] rcu: prevent RCU IPI storms in
	presence of high call_rcu() load


* Nick Piggin <npiggin@...e.de> wrote:

> Testing this on top of my vfs-scale patches, a 64-way 32-node ia64 
> system runs the parallel open/close microbenchmark ~30 times faster 
> and is scaling linearly now. Single thread performance is not 
> noticably changed. Thanks very much Paul.

Cool, thanks for the testing Nick!

	Ingo
--
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/