From: Dipankar Sarma <dipankar@in.ibm.com>
To: Hanna Linder <hannal@us.ibm.com>
Cc: William Lee Irwin III <wli@holomorphy.com>,
Maneesh Soni <maneesh@in.ibm.com>, Andrew Morton <akpm@digeo.com>,
linux-kernel@vger.kernel.org, viro@math.psu.edu
Subject: Re: 2.5.36-mm1 dbench 512 profiles
Date: Sat, 21 Sep 2002 02:24:23 +0530 [thread overview]
Message-ID: <20020921022423.B5267@in.ibm.com> (raw)
In-Reply-To: <69960000.1032553974@w-hlinder>; from hannal@us.ibm.com on Fri, Sep 20, 2002 at 08:32:48PM +0000
On Fri, Sep 20, 2002 at 08:32:48PM +0000, Hanna Linder wrote:
> --On Friday, September 20, 2002 11:51:13 -0700 Hanna Linder <hannal@us.ibm.com> wrote:
>
> >
> > Perhaps it is time to reconsider replacing fastwalk with dcache_rcu.
>
> These patches were written by Maneesh Soni. Since the Read-Copy Update
> infrastructure has not been accepted into the mainline kernel yet (although
> there were murmurings of it being acceptable) you will need to apply
> those first. Here they are, apply in this order. Too big to post
> inline text though. These are provided against 2.5.36-mm1.
>
>
> http://prdownloads.sourceforge.net/lse/rcu_ltimer-2.5.36-mm1
>
> http://prdownloads.sourceforge.net/lse/read_barrier_depends-2.5.36-mm1
>
> http://prdownloads.sourceforge.net/lse/dcache_rcu-12-2.5.36-mm1
>
> There has been quite a bit of testing done on this and it has proven
> quite stable. If anyone wants to do any additional testing that would
> be great.
Thanks for the vote of confidence :)
Now for some results (out of date, but also has results with backported code
from 2.5) see http://lse.sf.net/locking/dcache/dcache.html.
Preliminary profiling of webserver benchmarks in 2.5.3X show similar potential
for dcache_rcu. I will have actual results published when we can
get formal runs done.
Thanks
--
Dipankar Sarma <dipankar@in.ibm.com> http://lse.sourceforge.net
Linux Technology Center, IBM Software Lab, Bangalore, India.
next prev parent reply other threads:[~2002-09-20 20:45 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-19 22:30 William Lee Irwin III
2002-09-19 23:18 ` Hanna Linder
2002-09-19 23:38 ` Andrew Morton
2002-09-19 23:45 ` Hanna Linder
2002-09-20 0:08 ` William Lee Irwin III
2002-09-20 4:02 ` William Lee Irwin III
2002-09-20 7:59 ` Maneesh Soni
2002-09-20 8:06 ` William Lee Irwin III
2002-09-20 12:03 ` William Lee Irwin III
2002-09-20 18:51 ` Hanna Linder
2002-09-20 20:32 ` Hanna Linder
2002-09-20 20:54 ` Dipankar Sarma [this message]
2002-09-20 20:39 ` William Lee Irwin III
2002-09-20 21:30 ` Martin J. Bligh
2002-09-20 23:11 ` William Lee Irwin III
2002-09-20 23:22 ` Martin J. Bligh
2002-09-21 7:52 ` William Lee Irwin III
2002-09-20 14:34 ` Dave Hansen
2002-09-20 16:07 ` Martin J. Bligh
2002-09-20 17:48 ` Dipankar Sarma
2002-09-20 17:40 ` Dipankar Sarma
2002-09-20 20:28 ` Dipankar Sarma
2002-09-20 5:14 ` William Lee Irwin III
2002-09-20 6:59 ` William Lee Irwin III
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