Hallo,
mir ist gerade aufgefallen, daß hdparm unter sidux bessere Werte als
unter lenny liefert.
,----[ Sidux ]
| root@sidux:/home/sidux# hdparm -t /dev/sdc
|
| /dev/sdc:
| Timing buffered disk reads: 302 MB in 3.01 seconds = 100.46 MB/sec
|
| root@sidux:/home/sidux# hdparm -Tt /dev/sdc
|
| /dev/sdc:
| Timing cached reads: 8320 MB in 2.00 seconds = 4163.38 MB/sec
| Timing buffered disk reads: 316 MB in 3.00 seconds = 105.29 MB/sec
`----
,----[ lenny ]
| root@debian64:/home/stefan# hdparm -t /dev/sdc
|
| /dev/sdc:
| Timing buffered disk reads: 150 MB in 3.02 seconds = 49.72 MB/sec
|
| root@debian64:/home/stefan# hdparm -Tt /dev/sdc
|
| /dev/sdc:
| Timing cached reads: 8274 MB in 2.00 seconds = 4141.10 MB/sec
| Timing buffered disk reads: 162 MB in 3.02 seconds = 53.65 MB/sec
`----
,----[ Sidux ]
| root@sidux:/home/sidux# uname -a
| Linux sidux 2.6.27-10.slh.1-sidux-amd64 #1 SMP PREEMPT Thu Dec 18 19:51:16 UTC 2008 x86_64 GNU/Linux
`----
,----[ lenny ]
| stefan@debian64:~$ uname -a
| Linux debian64 2.6.26-1-amd64 #1 SMP Sat Jan 10 17:57:00 UTC 2009 x86_64 GNU/Linux
`----
Mir ist folgender Unterschied aufgefallen:
,----[ Sidux ]
| root@sidux:/home/sidux# grep ahci /var/log/syslog
| Jan 22 15:30:38 sidux kernel: ahci 0000:00:1f.2: version 3.0
| Jan 22 15:30:38 sidux kernel: ahci 0000:00:1f.2: PCI INT B -> GSI 19 (level, low) -> IRQ 19
| Jan 22 15:30:38 sidux kernel: ahci 0000:00:1f.2: AHCI 0001.0200 32 slots 6 ports 3 Gbps 0x3f impl SATA mode
| Jan 22 15:30:38 sidux kernel: ahci 0000:00:1f.2: flags: 64bit ncq sntf stag pm led clo pmp pio slum part ems
| Jan 22 15:30:38 sidux kernel: ahci 0000:00:1f.2: setting latency timer to 64
| Jan 22 15:30:38 sidux kernel: scsi0 : ahci
| Jan 22 15:30:38 sidux kernel: scsi1 : ahci
| Jan 22 15:30:38 sidux kernel: scsi2 : ahci
| Jan 22 15:30:38 sidux kernel: scsi3 : ahci
| Jan 22 15:30:38 sidux kernel: scsi4 : ahci
| Jan 22 15:30:38 sidux kernel: scsi5 : ahci
`----
,----[ lenny ]
| Jan 22 16:58:52 debian64 kernel: ahci 0000:00:1f.2: version 3.0
| Jan 22 16:58:52 debian64 kernel: ahci 0000:00:1f.2: AHCI 0001.0200 32 slots 6 ports 3 Gbps 0x3f impl SATA mode
| Jan 22 16:58:52 debian64 kernel: ahci 0000:00:1f.2: flags: 64bit ncq sntf stag pm led clo pmp pio slum part
| Jan 22 16:58:52 debian64 kernel: scsi0 : ahci
| Jan 22 16:58:52 debian64 kernel: scsi1 : ahci
| Jan 22 16:58:52 debian64 kernel: scsi2 : ahci
| Jan 22 16:58:52 debian64 kernel: scsi3 : ahci
| Jan 22 16:58:52 debian64 kernel: scsi4 : ahci
| Jan 22 16:58:52 debian64 kernel: scsi5 : ahci
`----
Ich weiß nicht, was dieses flag "ems" bedeutet, aber unter lenny fehlt das.
Noch ein paar allgemeine Informationen:
,----[ hdparm -i /dev/sdc ]
| /dev/sdc:
|
| Model=ST3500320AS , FwRev=SD15 , SerialNo= 5QM228YZ
| Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
| RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
| BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=?16?
| CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=976773168
| 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=no WriteCache=enabled
| Drive conforms to: unknown: ATA/ATAPI-4,5,6,7
|
| * signifies the current active mode
`----
Davon sind 3 baugleiche Festplatten eingebaut
,----[ syslog ]
| ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
| ata4.00: ATA-8: ST3500320AS, SD15, max UDMA/133
`----
,----[ lspci -vnn ]
| 00:1f.2 SATA controller [0106]: Intel Corporation 82801JI (ICH10 Family)
| SATA AHCI Controller [8086:3a22] (prog-if 01 [AHCI 1.0])
|
| Subsystem: ASUSTeK Computer Inc. Device [1043:82d4]
| Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 1278
| I/O ports at bc00 [size=8]
| I/O ports at b880 [size=4]
| I/O ports at b800 [size=8]
| I/O ports at b480 [size=4]
| I/O ports at b400 [size=32]
| Memory at f9ffe800 (32-bit, non-prefetchable) [size=2K]
| Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Queue=0/4 Enable+
| Capabilities: [70] Power Management version 3
| Capabilities: [a8] SATA HBA <?>
| Capabilities: [b0] Vendor Specific Information <?>
| Kernel driver in use: ahci
| Kernel modules: ahci
`----
Bei dem Board handelt es sich um ein Asus P5QC
Gruß
Stefan
--
Stefan Lütje <stefan.luetje@t-online.de> Skelli@jabber.ccc.de
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