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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



  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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