[LUGOS] ide performace
Tomi Hrovatin
tomi at hrovatin.com
Thu Dec 11 10:39:18 CET 2003
Hoj!
Jaz sem ta žrtev, ki jo opisuje ratko. Bom malo bolj natančen s podatki:
poki:/home/tomih# hdparm -i /dev/hda
/dev/hda:
Model=ExcelStor Technology J680, FwRev=V32OA60A, SerialNo=VNR21EG204MWVA
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=1794kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=160836480
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 udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive Supports : Reserved : Reserved : Reserved : ATA/ATAPI-6 T13 1410D revision 1 : Reserved : Reserved : Reserved : ATA-2 ATA-3 ATA-4 ATA-5 ATA-6
poki:/home/tomih# hdparm -i /dev/hdb
/dev/hdb:
Model=ExcelStor Technology J680, FwRev=V32OA60A, SerialNo=VNR21EG201DUNA
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=1794kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=160836480
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 udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive Supports : Reserved : Reserved : Reserved : ATA/ATAPI-6 T13 1410D revision 1 : Reserved : Reserved : Reserved : ATA-2 ATA-3 ATA-4 ATA-5 ATA-6
poki:/home/tomih# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 64 MB in 22.53 seconds = 2.84 MB/sec
poki:/home/tomih# hdparm -t /dev/hdb
/dev/hdb:
Timing buffered disk reads: 64 MB in 22.51 seconds = 2.84 MB/sec
poki:/home/tomih# cat /proc/ide/hda/settings
name value min max mode
---- ----- --- --- ----
acoustic 0 0 254 rw
address 1 0 2 rw
bios_cyl 10011 0 65535 rw
bios_head 255 0 255 rw
bios_sect 63 0 63 rw
breada_readahead 8 0 255 rw
bswap 0 0 1 r
current_speed 0 0 70 rw
failures 0 0 65535 rw
file_readahead 124 0 16384 rw
init_speed 0 0 70 rw
io_32bit 0 0 3 rw
keepsettings 0 0 1 rw
lun 0 0 7 rw
max_failures 1 0 65535 rw
max_kb_per_request 128 1 255 rw
multcount 16 0 16 rw
nice1 1 0 1 rw
nowerr 0 0 1 rw
number 0 0 3 rw
pio_mode write-only 0 255 w
slow 0 0 1 rw
unmaskirq 0 0 1 rw
using_dma 0 0 1 rw
wcache 0 0 1 rw
poki:/home/tomih# cat /proc/ide/hdb/settings
name value min max mode
---- ----- --- --- ----
acoustic 0 0 254 rw
address 1 0 2 rw
bios_cyl 10011 0 65535 rw
bios_head 255 0 255 rw
bios_sect 63 0 63 rw
breada_readahead 8 0 255 rw
bswap 0 0 1 r
current_speed 0 0 70 rw
failures 0 0 65535 rw
file_readahead 124 0 16384 rw
init_speed 0 0 70 rw
io_32bit 0 0 3 rw
keepsettings 0 0 1 rw
lun 0 0 7 rw
max_failures 1 0 65535 rw
max_kb_per_request 128 1 255 rw
multcount 16 0 16 rw
nice1 1 0 1 rw
nowerr 0 0 1 rw
number 1 0 3 rw
pio_mode write-only 0 255 w
slow 0 0 1 rw
unmaskirq 0 0 1 rw
using_dma 0 0 1 rw
wcache 0 0 1 rw
Upam, da tole kaj bolj pomaga.
T.
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-----Original Message-----
From: Ratko [mailto:ratko-lugos at kramfid.org]
Sent: Thursday, December 11, 2003 8:38 AM
To: Lugos
Subject: [LUGOS] ide performace
Cau vsem.
Imam vkljucen softwerski raid 1 v kernelu. Imam dva ide diska (in 1 cdrw) v
racunalniku, dma je vklopljen v kernelu.
kaj je bolje:
1. vsak ide disk na svojem vodilu, cdrw je slave na enem od njih, 2. oba diska na svojem vodilu (master, slave), cdrw je master na svojem.
prijatelj me prepričuje, da je 2 opcija boljša, ker drugače cdrw zabremza tist
disk ki je z njim na vodilu na ata33. sedaj imam to drugo verzijo in je
zadeva kritično počasna (celo noč je delal mirror na raidu - 80 Gb, prenos je
nekje 1 Mb / s).
ratko
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