From: Ingo Molnar <mingo@elte.hu>
To: Nick Piggin <npiggin@suse.de>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
linux-kernel@vger.kernel.org, laijs@cn.fujitsu.com,
dipankar@in.ibm.com, akpm@linux-foundation.org,
mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org,
dvhltc@us.ibm.com, niv@us.ibm.com, tglx@linutronix.de,
peterz@infradead.org, rostedt@goodmis.org,
Valdis.Kletnieks@vt.edu, dhowells@redhat.com,
jens.axboe@oracle.com
Subject: Re: [PATCH tip/core/rcu 2/6] rcu: prevent RCU IPI storms in presence of high call_rcu() load
Date: Thu, 15 Oct 2009 13:20:15 +0200 [thread overview]
Message-ID: <20091015112015.GB29080@elte.hu> (raw)
In-Reply-To: <20091015110404.GC3127@wotan.suse.de>
* Nick Piggin <npiggin@suse.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
next prev parent reply other threads:[~2009-10-15 11:21 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-14 17:15 [PATCH tip/core/rcu 0/6] rcu: fix synchronize_rcu_expedited(), update docs, improve perf Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 1/6] rcu: Update trace.txt documentation to reflect recent changes Paul E. McKenney
2009-10-15 9:25 ` [tip:core/rcu] " tip-bot for Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 2/6] rcu: prevent RCU IPI storms in presence of high call_rcu() load Paul E. McKenney
2009-10-15 3:31 ` Nick Piggin
2009-10-15 4:37 ` Paul E. McKenney
2009-10-15 9:24 ` [tip:core/rcu] rcu: Prevent " tip-bot for Paul E. McKenney
2009-10-15 11:04 ` [PATCH tip/core/rcu 2/6] rcu: prevent " Nick Piggin
2009-10-15 11:20 ` Ingo Molnar [this message]
2009-10-15 16:07 ` Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 3/6] rcu: stopgap fix for synchronize_rcu_expedited() for TREE_PREEMPT_RCU Paul E. McKenney
2009-10-15 9:25 ` [tip:core/rcu] rcu: Stopgap " tip-bot for Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 4/6] rcu: add exports for synchronize_rcu_expedited() Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 5/6] rcu: add rnp->blocked_tasks to tracing Paul E. McKenney
2009-10-14 20:26 ` Josh Triplett
2009-10-14 23:36 ` Paul E. McKenney
2009-10-15 9:25 ` [tip:core/rcu] rcu: Add " tip-bot for Paul E. McKenney
2009-10-14 17:15 ` [PATCH tip/core/rcu 6/6] rcu: Update trace.txt documentation for blocked-tasks lists Paul E. McKenney
2009-10-15 9:25 ` [tip:core/rcu] " tip-bot for Paul E. McKenney
2009-10-14 20:28 ` [PATCH tip/core/rcu 0/6] rcu: fix synchronize_rcu_expedited(), update docs, improve perf Josh Triplett
2009-10-15 9:21 ` Ingo Molnar
2009-10-15 9:35 ` Josh Triplett
2009-10-15 11:19 ` Ingo Molnar
2009-10-15 16:14 ` Paul E. McKenney
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