Informationen über die Platte
# hdparm -i /dev/sda
/dev/sda:
Model=MXSSD1MNANO-60G, FwRev=VATE1702, SerialNo=110105411
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=DualPortCache, BuffSize=unknown, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=117440512
IORDY=yes, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6
AdvancedPM=no WriteCache=disabled
Drive conforms to: unknown: ATA/ATAPI-1,2,3,4,5,6,7
* signifies the current active mode
========================================================================
# fdisk -l -u /dev/sda
Platte /dev/sda: 60.1 GByte, 60129542144 Byte
255 Köpfe, 63 Sektoren/Spur, 7310 Zylinder, zusammen 117440512 Sektoren
Einheiten = Sektoren von 1 × 512 = 512 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x53c32214
Gerät boot. Anfang Ende Blöcke Id System
/dev/sda1 2048 31459327 15728640 83 Linux
/dev/sda2 31459328 113248255 40894464 5 Erweiterte
/dev/sda5 31461376 37752831 3145728 82 Linux Swap / Solaris
/dev/sda6 37754880 113248255 37746688 83 Linux
# parted /dev/sda align-check opt
Partitionsnummer? 1
1 aligned
# parted /dev/sda align-check opt
Partitionsnummer? 5
5 aligned
# parted /dev/sda align-check opt
Partitionsnummer? 6
6 aligned
07.10.2011
========================================================================
07.10.2011
$ cat /sys/block/sda/queue/scheduler
noop deadline [cfq]
# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 1318 MB in 2.00 seconds = 658.76 MB/sec
Timing buffered disk reads: 260 MB in 3.02 seconds = 86.19 MB/sec
# hdparm -tT --direct /dev/sda
/dev/sda:
Timing O_DIRECT cached reads: 178 MB in 2.02 seconds = 88.24 MB/sec
Timing O_DIRECT disk reads: 272 MB in 3.01 seconds = 90.29 MB/sec
--------------------------------------------------------------------
deadline-Tests 08.11.2011
# echo deadline > /sys/block/sda/queue/scheduler
$ cat /sys/block/sda/queue/scheduler
noop [deadline] cfq
# hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 1584 MB in 2.00 seconds = 791.71 MB/sec
Timing buffered disk reads: 260 MB in 3.01 seconds = 86.27 MB/sec
# hdparm -tT --direct /dev/sda
/dev/sda:
Timing O_DIRECT cached reads: 176 MB in 2.01 seconds = 87.49 MB/sec
Timing O_DIRECT disk reads: 270 MB in 3.02 seconds = 89.39 MB/sec
----------------------------------------------------------
# echo noop > /sys/block/sda/queue/scheduler
$ cat /sys/block/sda/queue/scheduler
[noop] deadline cfq
# hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 1564 MB in 2.00 seconds = 782.29 MB/sec
Timing buffered disk reads: 260 MB in 3.02 seconds = 86.11 MB/s
# hdparm -tT --direct /dev/sda
/dev/sda:
Timing O_DIRECT cached reads: 176 MB in 2.01 seconds = 87.51 MB/sec
Timing O_DIRECT disk reads: 268 MB in 3.01 seconds = 89.05 MB/sec
=============================================================================