From: "Andrei M. Laptev" <aml@softex.ru>
To: community@altlinux.ru
Subject: Re: [Comm] master-2.2 периодические тормоза с LA доходящим до 8-9
Date: Mon, 10 Jun 2002 16:15:53 +0500
Message-ID: <3D048A69.4090304@softex.ru> (raw)
In-Reply-To: <200306101602.21625.den@academ.org>
Denis S. Filimonov пишет:
> Тормоза, очевидно, вызваны дисковой подсистемой.
> Скорее всего надо firebird понастраивать в этом отношении, или более
> быстрые диски ставить.
>
>
Тогда вопрос:
значения выдаваемые hdparm следует считать низкими,
нормальными, высокими ?
[root@o2 root]# hdparm -tT /dev/sda
/dev/sda:
Timing buffer-cache reads: 128 MB in 0.57 seconds
=224.56 MB/sec
Timing buffered disk reads: 64 MB in 1.22 seconds =
52.46 MB/sec
[root@o2 root]# hdparm -tT /dev/sdb
/dev/sdb:
Timing buffer-cache reads: 128 MB in 0.55 seconds
=232.73 MB/sec
Timing buffered disk reads: 64 MB in 1.92 seconds =
33.33 MB/sec
[root@o2 root]# hdparm -tT /dev/sdc
/dev/sdc:
Timing buffer-cache reads: 128 MB in 0.54 seconds
=237.04 MB/sec
Timing buffered disk reads: 64 MB in 4.81 seconds =
13.31 MB/sec
Винты такие: cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: FUJITSU Model: MAN3367MP Rev: 0109
Type: Direct-Access ANSI SCSI
revision: 03
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: IBM Model: DDYS-T18350N Rev: S96H
Type: Direct-Access ANSI SCSI
revision: 03
Host: scsi0 Channel: 00 Id: 02 Lun: 00
Vendor: IBM Model: DDYS-T18350N Rev: S96H
Type: Direct-Access ANSI SCSI
revision: 03
--
С уважением,
Лаптев Андрей
next prev parent reply other threads:[~2002-06-10 11:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-10 7:14 Andrei M. Laptev
2002-06-10 8:21 ` Andrei M. Laptev
2003-06-10 9:02 ` Denis S. Filimonov
2002-06-10 11:15 ` Andrei M. Laptev [this message]
2003-06-10 11:36 ` Denis S. Filimonov
2003-06-10 11:45 ` [Comm] " Sergey Vlasov
2003-06-10 12:01 ` [Comm] Re[2]: [Comm] " Maxim Ivanov
2003-06-10 10:05 ` Maxim.Savrilov
2002-06-10 10:24 ` Andrei M. Laptev
2003-06-11 4:58 ` Andrei M. Laptev
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