Архив форумов ЦИТФорума

[Andrew Grekhov]

Есть два диска
старый на /dev/hda ST340014A (ata-100)
и новый на /dev/hdb SAMSUNG SP1213N (ata-133)
Ось RedHat 9,kernel-2.4.20-43.9.legacy.athlon.rpm
Мать GA-7VRX, АТА-133 должна поддерживать.
Измерил скорость винтов через hdparm -t и вылезли интересные результаты:
/dev/hda : 64 MB in 1.15 seconds = 55.65 MB/sec
/dev/hda1: 64 MB in 1.16 seconds = 55.17 MB/sec
/dev/hda2: 64 MB in 1.21 seconds = 52.89 MB/sec
/dev/hda3: 64 MB in 1.48 seconds = 43.24 MB/sec
/dev/hda4:
/dev/hda5: 64 MB in 1.28 seconds = 50.00 MB/sec
/dev/hda6: 64 MB in 1.36 seconds = 47.06 MB/sec
/dev/hda7: 64 MB in 1.33 seconds = 48.12 MB/sec
/dev/hda8: 64 MB in 1.34 seconds = 47.76 MB/sec
/dev/hda9: 64 MB in 1.73 seconds = 36.99 MB/sec

Disk /dev/hda: 40.0 GB, 40020664320 bytes
255 heads, 63 sectors/track, 4865 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hda1 * 1 383 3076416 7 HPFS/NTFS
/dev/hda2 384 1275 7164990 83 Linux
/dev/hda3 1276 1530 2048287+ c Win95 FAT32 (LBA)
/dev/hda4 1531 4546 24226020 f Win95 Ext'd (LBA)
/dev/hda5 1531 1912 3068383+ 83 Linux
/dev/hda6 1913 2039 1020096 c Win95 FAT32 (LBA)
/dev/hda7 2040 2055 128488+ 82 Linux swap
/dev/hda8 2056 3910 14900256 83 Linux
/dev/hda9 3911 4546 5108607 83 Linux
и новый диск
/dev/hdb: 64 MB in 1.66 seconds = 38.55 MB/sec
/dev/hdb1: 64 MB in 1.64 seconds = 39.02 MB/sec
/dev/hdb2: 64 MB in 1.52 seconds = 42.11 MB/sec
/dev/hdb3: 64 MB in 1.52 seconds = 42.11 MB/sec
/dev/hdb4:
/dev/hdb5: 64 MB in 1.51 seconds = 42.38 MB/sec
/dev/hdb6: 64 MB in 1.53 seconds = 41.83 MB/sec

Disk /dev/hdb: 120.0 GB, 120060444672 bytes
255 heads, 63 sectors/track, 14596 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hdb1 * 1 609 4891761 7 HPFS/NTFS
/dev/hdb2 610 1218 4891792+ c Win95 FAT32 (LBA)
/dev/hdb3 1219 1827 4891792+ 83 Linux
/dev/hdb4 1828 14596 102566992+ 5 Extended
/dev/hdb5 1828 2436 4891761 83 Linux
/dev/hdb6 2437 2923 3911796 82 Linux swap
/dev/hdb7 2924 3046 987966 83 Linux

есть ещё hdparm -v

hda

/dev/hda:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 4865/255/63, sectors = 78165360, start = 0

Model=ST340014A, FwRev=3.54, SerialNo=5JV3FMSS
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=4047/16/255, CurSects=16511760, LBA=yes, LBAsects=78165360
IORDY=on/off, tPIO={min:240,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
AdvancedPM=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2: 1 2 3 4 5 6

hdb

/dev/hdb:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 14596/255/63, sectors = 234493056, start = 0

Model=SAMSUNG SP1213N, FwRev=TL100-30, SerialNo=S00UJ10Y801812
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4
BuffType=DualPortCache, BuffSize=8192kB, MaxMultSect=16, MultSect=16
CurCHS=4047/16/255, CurSects=16511760, LBA=yes, LBAsects=234493056
IORDY=on/off, tPIO={min:240,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
AdvancedPM=no WriteCache=enabled
Drive conforms to: (null): 1 2 3 4 5 6 7

Вопрос почему новый диск медленее?
Или я не тем,не так мерию.