Rychlost HDD

[Jan Matis]

moje hodnoty
[root na dualproc root]# hdparm -tT /dev/hda

/dev/hda:
 Timing buffer-cache reads:   128 MB in  1.16 seconds =110.34 MB/sec
 Timing buffered disk reads:  64 MB in  2.33 seconds = 27.47 MB/sec

[root na dualproc root]# dmesg |more
Linux version 2.4.17-xfs (root na dualproc) (gcc version 2.96 20000731
(Mandrake Linux 8.1 2.96-0.62mdk)) #8 SMP St feb 13 14:00:07 CET 2002
....
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PIIX4: IDE controller on PCI bus 00 dev 39
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio
hda: Maxtor 5T060H6, ATA DISK drive
hdc: SAMSUNG CD-ROM SC-152C, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 120103200 sectors (61493 MB) w/2048KiB Cache, CHS=119150/16/63, UDMA(33)
....


doporucujem vam pohrat sa s hdparm
a pozriet sa na
http://www.kernel.org/pub/linux/kernel/people/hedrick/
v pripade ze si kompilujete vlastny vanilla kernel

dalsia uzitocna linka :
http://www.linux-ide.org/

S pozdravom

Jan Matis



On Sun, 17 Mar 2002, Tom Hudec wrote:

> MS K7T Turbo (MS-6330), chipset VIA KT133A, Duron 850
> 2.4.18-ac3
> hda: ST340016A, UDMA100, 7200rpm
>
> /dev/hda:
>   Timing buffer-cache reads:   128 MB in  0.91 seconds =140.66 MB/sec
>   Timing buffered disk reads:  64 MB in  1.64 seconds = 39.02 MB/sec
>
> hdb: IBM-DTLA-307030, UDMA100, 7200rpm
>
> /dev/hdb:
>   Timing buffer-cache reads:   128 MB in  0.88 seconds =145.45 MB/sec
>   Timing buffered disk reads:  64 MB in  1.81 seconds = 35.36 MB/sec
>
>
> Lubos Pinkava wrote:
> > hda: ST340823A, ATA DISK drive, UDMA100, 5400rpm
> > deska ECS K7S5A, chipset SIS735
> > kernel 2.4.17
> > nastaveni: hdparm -d1 -c3 -u1 /dev/hda
> >
> > /dev/hda:
> >  Timing buffer-cache reads:   128 MB in  1.01 seconds =126.73 MB/sec
> >  Timing buffered disk reads:  64 MB in  3.19 seconds = 20.06 MB/sec
> >
> >
> > Marek Przeczek wrote:
> >
> >
> >>Petr Klíma wrote:
> >>
> >>
> >>>Radovan Chupá? wrote:
> >>>
> >>>>Dobry den.
> >>>>
> >>>>Na nasi siti mame server provozovany na RH 7.2.
> >>>>Nyni jsem provedl upgrade HDD a je v nem umisten WD 100GB 7200 UDMA100.
> >>>>Jako zakladni deska je pouzito stare TOMATO TX 98 + AMD K6-2 300MHz +
> >>>>256MB. Tato deska podporuje pouze UDMA33.
> >>>>
> >>>>Pri mereni rychlosti HDD pomoci prikazu hdparm -t /dev/hda5 jsem na
> >>>>tomto disku dosahl hodnoty 8,1MB/sec. Disk je nastaven na UDMA33. Tato
> >>>>hodnota se mi vsak zda ponekud nizka a na VIA strankach uvadeji dosazeni
> >>>>rychlosti
> >>>>okolo 20MB/sec s UDMA100. Proto se chci zeptat, zda je brzdou  pomaly
> >>>>radic UDMA33 nebo kde jinde hledat slabiny systemu.
> >>>>
> >>>>Jake vysledky jste dosahli vy ?
> >>>>
> >>>Ja mam na Maxtoru 40GB nastavenem na UDMA100 35-40MB/s, na
> >>>UDMA 33 asi 24MB/s. Takze problem je asi v nastaveni disku.
> >>>Nebo jste testoval, kdyz byl zatizeny pocitac. Nebo...
> >>>
> >>>
> >>ja mam klasicky udma33 disk i radic v notebooku => 7.6 az 8 mb/s
> >>
> >>marek
>
>

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