From: "Martin J. Bligh" <mbligh@aracnet.com>
To: Alex Tomas <bzzz@tmi.comex.ru>,
linux-kernel <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@digeo.com>, anton@samba.org
Subject: Re: [PATCH] concurrent block allocation for ext3
Date: Fri, 14 Mar 2003 18:56:37 -0800 [thread overview]
Message-ID: <251250000.1047696997@flay> (raw)
In-Reply-To: <227420000.1047676948@flay>
> SDET on my machine (16x NUMA-Q) has fallen in love with your patch,
> and has decided to elope with it to a small desert island. This is
> despite it's one disk hung off node 0, and the IO througput of a
> slightly damp piece of cotton thread. Apologies for the loss of your
> patch as it gets whisked away ;-)
Dbench (1 disk, x440 8 real cpus, 16 HT ones)
before:
Throughput 265.032 MB/sec (NB=331.29 MB/sec 2650.32 MBit/sec) 256 procs
after:
Throughput 381.964 MB/sec (NB=477.454 MB/sec 3819.64 MBit/sec) 256 procs
(I took the second run, first ones are slower, seems to be stable after)
NUMA-Q 16-way (1 disk. 16 cpus)
before:
Throughput 48.5304 MB/sec (NB=60.663 MB/sec 485.304 MBit/sec) 256 procs
after:
Throughput 58.8483 MB/sec (NB=73.5603 MB/sec 588.483 MBit/sec) 256 procs
NUMA-Q has slower disks, old adaptors, and a slow cross-node interconnect.
next prev parent reply other threads:[~2003-03-15 2:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-10 15:41 [PATCH] concurrent block allocation for ext3 Alex Tomas
2003-03-10 16:25 ` Andreas Dilger
2003-03-10 16:33 ` Alex Tomas
2003-03-10 16:43 ` Daniel Phillips
2003-03-14 21:22 ` Martin J. Bligh
2003-03-15 2:56 ` Martin J. Bligh [this message]
2003-03-15 6:08 ` Martin J. Bligh
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