From: "John Hawkes" <hawkes@sgi.com>
To: "Robert Love" <rml@novell.com>,
"John McCutchan" <ttb@tentacle.dhs.org>,
"John Hawkes" <hawkes@tomahawk.engr.sgi.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.10-mm3 scaling problem with inotify
Date: Fri, 14 Jan 2005 10:05:21 -0800 [thread overview]
Message-ID: <002301c4fa63$9d9d3b10$6900a8c0@comcast.net> (raw)
In-Reply-To: 1105669742.6027.243.camel@localhost
From: "Robert Love" <rml@novell.com>
...
> John Hawkes: Attached patch implements the dget() optimization in the
> same manner as dnotify. Compile-tested but not booted.
>
> Let me know!
...
> inotify: don't do dget() unless we have to
>
> drivers/char/inotify.c | 14 +++++++++++---
> 1 files changed, 11 insertions(+), 3 deletions(-)
The patch shows a substantial 4x improvement for my specific workload (@64p),
although I can still envision workloads that will stimulate high spinlock
contention from spin_lock(&dentry->d_lock). First things first -- let's get
this fix into the -mm tree. Thanks!
John Hawkes
next prev parent reply other threads:[~2005-01-14 18:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-13 23:56 2.6.10-mm3 scaling problem with inotify John Hawkes
2005-01-14 0:49 ` Robert Love
2005-01-14 1:31 ` John McCutchan
2005-01-14 2:29 ` Robert Love
2005-01-14 18:05 ` John Hawkes [this message]
2005-01-14 18:15 ` Robert Love
2005-01-14 18:39 ` John Hawkes
-- strict thread matches above, loose matches on Subject: below --
2005-01-14 0:51 John Hawkes
2005-01-14 2:31 Zou, Nanhai
2005-01-14 2:36 ` John McCutchan
2005-01-14 2:41 ` Robert Love
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