Re: [SLE] Slow partition: how to check?

From: Pieter Hulshoff (phulshof_at_xs4all.nl)
Date: 01/29/05

  • Next message: Jesse L. Purdom: "[SLE] GTK+" 
    To: suse-linux-e@suse.com
Date: Sat, 29 Jan 2005 20:39:54 +0100

    On Saturday 29 January 2005 20:25, Randall R Schulz wrote:
    > How about showing us actual output from hdparam. Not only from the speed
    > test options, but from the device information options, too. There may
    > be some clues therein.
    > hdparm -v -i -t /dev/hda

    Ok, I ran this on /dev/hda, /dev/hda3, /dev/hda4, /dev/hdc, /dev/hdc3,
    and /dev/hdc4, and below's the output. Since I'm doing this from a running
    system, results will be lower than indicated in previous emails (got a few
    other programs running as well right now; if needs be I'll run this from a
    recue disk later to get you unmounted performance; hda and hdc are about
    equally used (software RAID) so the relative performance should be ok).

    /dev/hda:
     multcount = 16 (on)
     IO_support = 1 (32-bit)
     unmaskirq = 1 (on)
     using_dma = 1 (on)
     keepsettings = 0 (off)
     readonly = 0 (off)
     readahead = 256 (on)
     geometry = 19929/255/63, sectors = 320173056, start = 0

     Model=Maxtor 6Y160P0, FwRev=YAR41BW0, SerialNo=Y43XR0JE
     Config={ Fixed }
     RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
     BuffType=DualPortCache, BuffSize=7936kB, MaxMultSect=16, MultSect=16
     CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
     IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
     PIO modes: pio0 pio1 pio2 pio3 pio4
     DMA modes: mdma0 mdma1 mdma2
     UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
     AdvancedPM=yes: disabled (255) WriteCache=enabled
     Drive conforms to: (null):

     * signifies the current active mode

     Timing buffered disk reads: 84 MB in 3.08 seconds = 27.29 MB/sec

    /dev/hda3:
     multcount = 16 (on)
     IO_support = 1 (32-bit)
     unmaskirq = 1 (on)
     using_dma = 1 (on)
     keepsettings = 0 (off)
     readonly = 0 (off)
     readahead = 256 (on)
     geometry = 19929/255/63, sectors = 30009420, start = 4016250
     Timing buffered disk reads: 88 MB in 3.03 seconds = 29.02 MB/sec

    /dev/hda4:
     multcount = 16 (on)
     IO_support = 1 (32-bit)
     unmaskirq = 1 (on)
     using_dma = 1 (on)
     keepsettings = 0 (off)
     readonly = 0 (off)
     readahead = 256 (on)
     geometry = 19929/255/63, sectors = 286133715, start = 34025670
     Timing buffered disk reads: 20 MB in 3.12 seconds = 6.41 MB/sec

    /dev/hdc:
     multcount = 16 (on)
     IO_support = 1 (32-bit)
     unmaskirq = 1 (on)
     using_dma = 1 (on)
     keepsettings = 0 (off)
     readonly = 0 (off)
     readahead = 256 (on)
     geometry = 19929/255/63, sectors = 320173056, start = 0

     Model=Maxtor 6Y160P0, FwRev=YAR41BW0, SerialNo=Y43XR33E
     Config={ Fixed }
     RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
     BuffType=DualPortCache, BuffSize=7936kB, MaxMultSect=16, MultSect=16
     CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
     IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
     PIO modes: pio0 pio1 pio2 pio3 pio4
     DMA modes: mdma0 mdma1 mdma2
     UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
     AdvancedPM=yes: disabled (255) WriteCache=enabled
     Drive conforms to: (null):

     * signifies the current active mode

     Timing buffered disk reads: 108 MB in 3.02 seconds = 35.72 MB/sec

    /dev/hdc3:
     multcount = 16 (on)
     IO_support = 1 (32-bit)
     unmaskirq = 1 (on)
     using_dma = 1 (on)
     keepsettings = 0 (off)
     readonly = 0 (off)
     readahead = 256 (on)
     geometry = 19929/255/63, sectors = 30009420, start = 4016250
     Timing buffered disk reads: 88 MB in 3.02 seconds = 29.10 MB/sec

    /dev/hdc4:
     multcount = 16 (on)
     IO_support = 1 (32-bit)
     unmaskirq = 1 (on)
     using_dma = 1 (on)
     keepsettings = 0 (off)
     readonly = 0 (off)
     readahead = 256 (on)
     geometry = 19929/255/63, sectors = 286117650, start = 34025670
     Timing buffered disk reads: 114 MB in 3.05 seconds = 37.38 MB/sec

    Regards,

    Pieter Hulshoff 

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