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From: Grant Grundler <grundler@parisc-linux.org>
To: "David S. Miller" <davem@redhat.com>
Cc: Grant Grundler <grundler@parisc-linux.org>,
	ak@suse.de, alan@lxorguk.ukuu.org.uk,
	James.Bottomley@SteelEye.com, axboe@suse.de, suparna@in.ibm.com,
	linux-kernel@vger.kernel.org, alex_williamson@hp.com,
	bjorn_helgaas@hp.com
Subject: Re: [RFC] block layer support for DMA IOMMU bypass mode II
Date: Wed, 30 Jul 2003 10:02:50 -0600	[thread overview]
Message-ID: <20030730160250.GA16960@dsl2.external.hp.com> (raw)
In-Reply-To: <20030729215118.13a5ac18.davem@redhat.com>

On Tue, Jul 29, 2003 at 09:51:18PM -0700, David S. Miller wrote:
> Make an ext2 filesystem with 16K blocks :-)

Executive summary:
	looks the same as previous 4k block/16k page w/VMERGE enabled.

davem, I thought you were joking...I've submitted a oneliner to
Ted Tyso to increase EXT2_MAX_BLOCK_LOG_SIZE to 64k.
kudos to willy for quickly digging this up.
16k block size Works For Me (tm).

appended is the re-aim-7 results for 16k page/block on ext2.

grant


iota:/mnt# PATH=$PATH:/mnt/usr/local/bin
iota:/mnt# reaim -f /mnt/usr/local/share/reaim/workfile.new_dbase -s100 -e 500 -i 100
REAIM Workload
Times are in seconds - Child times from tms.cstime and tms.cutime

Num     Parent   Child   Child  Jobs per   Jobs/min/  Std_dev  Std_dev  JTI
Forked  Time     SysTime UTime   Minute     Child      Time     Percent
100     108.62   12.46   203.84  5689.35    56.89      4.59     4.46     95
200     217.51   25.29   408.11  5682.60    28.41      9.06     4.36     95
300     325.57   38.05   612.20  5694.63    18.98      12.01    3.85     96
400     434.89   50.67   817.90  5684.16    14.21      15.60    3.75     96
500     545.89   65.74   1024.75 5660.51    11.32      29.45    5.72     94
Max Jobs per Minute 5694.63
iota:/mnt#

  parent reply	other threads:[~2003-07-30 16:03 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-01 16:46 [RFC] block layer support for DMA IOMMU bypass mode James Bottomley
2003-07-01 17:09 ` Andi Kleen
2003-07-01 17:28   ` James Bottomley
2003-07-01 17:42     ` Andi Kleen
2003-07-01 19:22       ` Grant Grundler
2003-07-01 19:56       ` James Bottomley
2003-07-01 17:54     ` H. Peter Anvin
2003-07-01 19:19 ` Grant Grundler
2003-07-01 19:59   ` Alex Williamson
2003-07-01 20:11     ` James Bottomley
2003-07-01 20:03   ` James Bottomley
2003-07-01 23:01     ` Grant Grundler
2003-07-02 15:52       ` James Bottomley
2003-07-01 22:51 ` David S. Miller
2003-07-01 23:57 ` [RFC] block layer support for DMA IOMMU bypass mode II Andi Kleen
2003-07-02  0:03   ` David S. Miller
2003-07-02  0:22     ` Andi Kleen
2003-07-02  0:21       ` David S. Miller
2003-07-02 16:53       ` Grant Grundler
2003-07-02 17:19         ` Andi Kleen
2003-07-02 16:55   ` Grant Grundler
2003-07-02 17:20     ` Andi Kleen
2003-07-02 17:37       ` Grant Grundler
2003-07-02 21:16     ` Alan Cox
2003-07-02 23:56       ` Andi Kleen
2003-07-03 20:26         ` Alan Cox
2003-07-03 21:24           ` Andi Kleen
2003-07-03 22:19             ` Grant Grundler
2003-07-08  2:14             ` David S. Miller
2003-07-08 19:34               ` Andi Kleen
2003-07-08 19:47                 ` Jeff Garzik
2003-07-08 20:10                   ` Andi Kleen
2003-07-08 20:11                   ` Grant Grundler
2003-07-08 22:04                 ` David S. Miller
2003-07-08 22:25                   ` Grant Grundler
2003-07-08 22:23                     ` David S. Miller
2003-07-09 18:55                       ` Andi Kleen
2003-07-23 11:40                       ` Grant Grundler
2003-07-28 11:15                         ` Andi Kleen
2003-07-28 14:59                           ` Grant Grundler
2003-07-30  2:31                           ` Grant Grundler
2003-08-01 21:51                             ` Cliff White
2003-08-01 23:18                               ` reaim now available as osdl-aim-7 - " Cliff White
2003-07-30  4:42                           ` Grant Grundler
2003-07-30  4:51                             ` David S. Miller
2003-07-30 13:06                               ` Grant Grundler
2003-07-30 16:02                               ` Grant Grundler [this message]
2003-07-30 16:36                                 ` Andi Kleen
2003-07-30 17:18                                   ` James Bottomley
2003-07-30 14:20                             ` James Bottomley
2003-07-23 13:20                       ` Grant Grundler
2003-07-23 15:30                         ` Jens Axboe

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