Re: [PATCH 0/3] debloat aic7xxx and aic79xx drivers

From: J.A. MagallÃn
Date: Thu Oct 18 2007 - 17:36:59 EST


On Sun, 14 Oct 2007 15:58:26 +0100, Denys Vlasenko <vda.linux@xxxxxxxxxxxxxx> wrote:

> Hi,
>
> Following patches debloat drivers/scsi/aic7xxx/*.
> I also had to add prototypes for ahc_lookup_scb
> and ahd_lookup_scb to .h files.
>

Sorry for the late replay, but.. working fine on

annwn:~# lspci | grep Adap
03:02.0 SCSI storage controller: Adaptec ASC-29320 U320 (rev 03)
03:02.1 SCSI storage controller: Adaptec ASC-29320 U320 (rev 03)
annwn:~# lsscsi -H
[1] aic79xx
[2] aic79xx

with
annwn:~# lsscsi
[2:0:0:0] disk SEAGATE ST336807LW 0C01 /dev/sdb
[2:0:1:0] disk SEAGATE ST336807LW 0C01 /dev/sdc
[2:0:2:0] disk SEAGATE ST336807LW 0C01 /dev/sdd
[2:0:3:0] disk SEAGATE ST336807LW 0C01 /dev/sde

and giving up to 200Mb/s on a pretty old mobo (see cached reads) with raid5:

annwn:~# hdparm -tT /dev/sd[bcde]

/dev/sdb:
Timing cached reads: 950 MB in 2.00 seconds = 474.23 MB/sec
Timing buffered disk reads: 228 MB in 3.00 seconds = 75.93 MB/sec

/dev/sdc:
Timing cached reads: 1020 MB in 2.00 seconds = 510.01 MB/sec
Timing buffered disk reads: 228 MB in 3.01 seconds = 75.76 MB/sec

/dev/sdd:
Timing cached reads: 1022 MB in 2.00 seconds = 510.69 MB/sec
Timing buffered disk reads: 228 MB in 3.01 seconds = 75.79 MB/sec

/dev/sde:
Timing cached reads: 1016 MB in 2.00 seconds = 507.92 MB/sec
Timing buffered disk reads: 228 MB in 3.02 seconds = 75.48 MB/sec
annwn:~# hdparm -tT /dev/md0

/dev/md0:
Timing cached reads: 1020 MB in 2.00 seconds = 509.96 MB/sec
Timing buffered disk reads: 602 MB in 3.01 seconds = 199.84 MB/sec


--
J.A. Magallon <jamagallon()ono!com> \ Software is like sex:
\ It's better when it's free
Mandriva Linux release 2008.1 (Cooker) for i586
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