HD Speed.
Bob Marcan
bob at interstudio.homeunix.net
Tue Feb 24 08:32:36 UTC 2004
Alexandre Strube wrote:
> Em Dom, 2004-02-22 às 07:15, Dean Mumby escreveu:
>
>
>> hdparm -tT /dev/sda
>>/dev/sda:
SCSI^
>> Timing buffer-cache reads: 3568 MB in 2.00 seconds = 1784.00 MB/sec
>> Timing buffered disk reads: 166 MB in 3.00 seconds = 55.33 MB/sec
>>not slow at all
>
>
> Now I'm confused. My machine (a athlon xp 1700, 384mb ddr) shows very
> disappointing results, compared to your blazing-speed p4:
>
> /dev/hda:
IDE^
> Timing buffer-cache reads: 904 MB in 2.00 seconds = 452.00 MB/sec
> Timing buffered disk reads: 80 MB in 3.06 seconds = 26.14 MB/sec
>
> Is this expected for such machine, or is there something to be done?
>
RH9, P4 2.0 GHz, 1 GB, Intel D854GBV mobo
IDE interface: Intel Corp. 82801DB ICH4 IDE (rev 1).
WDC WD800JB-00CRA1, 80GB, 7200 rpm, 8MB cache
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.41 seconds =312.20 MB/sec
Timing buffered disk reads: 64 MB in 2.24 seconds = 28.57 MB/sec
[encijan ~]$ sudo hdparm -Tt /dev/hde
Unknown mass storage controller: Promise Technology, Inc. 20269 (rev 2).
WDC WD800JB-00CRA1, 80GB, 7200 rpm, 8MB cache
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
/dev/hde:
Timing buffer-cache reads: 128 MB in 0.42 seconds =304.76 MB/sec
Timing buffered disk reads: 64 MB in 1.39 seconds = 46.04 MB/sec
--
Bob Marcan mailto:bob.marcan at hermes-plus.si
Aster^H^H...HermesPlus^H^H^H...S&T
Slandrova ul. 2 tel: +386 (1) 5895-200
1000 Ljubljana, Slovenia http://www.hermes-plus.si
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