おまえの hddparm -tT 教えてください。

bash# cat /proc/ide/hda/model
TOSHIBA MK6015MAP
/dev/hda:
Timing buffer-cache reads: 64 MB in 0.55 seconds =116.36 MB/sec
Timing buffered disk reads: 32 MB in 2.44 seconds =13.11 MB/sec

bash-2.05# cat /proc/ide/hda/model
FUJITSU MPG3409AT E
/dev/hda:
Timing buffer-cache reads: 128 MB in 1.04 seconds =123.08 MB/sec
Timing buffered disk reads: 64 MB in 2.35 seconds = 27.23 MB/sec

bash-2.05# cat /proc/ide/hdc/model
IBM-DPTA-372050
/dev/hdc:
Timing buffer-cache reads: 128 MB in 1.01 seconds =126.73 MB/sec
Timing buffered disk reads: 64 MB in 2.94 seconds = 21.77 MB/sec

cat /proc/ide/hda/media
disk

$ hddparm -tT
bash: hddparm: command not found

>>3 俺に対する朝鮮^H^H挑戦か？

$cat /proc/ide/hda/model
Maxtor 91020U3

# /sbin/hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.88 seconds =145.45 MB/sec
Timing buffered disk reads: 64 MB in 3.52 seconds = 18.18 MB/sec

Vendor: IBM-PSG Model: DDYS-T09170M M Rev: S9HA

/dev/sda:
Timing buffer-cache reads: 128 MB in 1.23 seconds =104.07 MB/sec
Timing buffered disk reads: 64 MB in 2.01 seconds = 31.84 MB/sec

Vendor: FUJITSU Model: MAJ3364MC Rev: 3702

/dev/sdb:
Timing buffer-cache reads: 128 MB in 1.19 seconds =107.56 MB/sec
Timing buffered disk reads: 64 MB in 1.92 seconds = 33.33 MB/sec

SCSI
Chip NCR53C895, device id 0xc, revision id 0x2
On PCI bus 0, device 13, function 0, IRQ 10
Synchronous period factor 10, max commands per lun 32

Vendor: IBM Model: DNES-318350W Rev: SA30

/dev/sda:
Timing buffer-cache reads: 128 MB in 0.88 seconds =145.45 MB/sec
Timing buffered disk reads: 64 MB in 3.32 seconds = 19.28 MB/sec

mona@2ch:~$ cat /proc/ide/hda/model
TOSHIBA MK2016GAP

mona@2ch:~$ sudo /sbin/hdparm -tT /dev/hda
Password:

/dev/hda:
Timing buffer-cache reads: 128 MB in 1.04 seconds =123.08 MB/sec
Timing buffered disk reads: 64 MB in 15.71 seconds = 4.07 MB/sec

[root@hoge 1002]# /sbin/hdparm -tT /dev/hdc

/dev/hdc:
Timing buffer-cache reads: 128 MB in 0.23 seconds =556.52 MB/sec
Timing buffered disk reads: 64 MB in 1.89 seconds = 33.86 MB/sec
[root@hoge 1002]# cat /proc/ide/hdc/model
IC35L060AVER07-0

速いのでまんぞくしてます。(クラッシュ時のデータ損失が恐い)

#hdparm -itT /dev/hda

/dev/hda:

Model=IBM-DTLA-307020, FwRev=TX3OA50C, SerialNo=YHDYHT8T768
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=40188960
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
Timing buffer-cache reads: 128 MB in 1.77 seconds = 72.32 MB/sec
Timing buffered disk reads: 64 MB in 2.60 seconds = 24.62 MB/sec

英語のman 読むのもたるいので，
なにするコマンドか，-tT オプションを含めて
説明希望

>>11
俺のにはmanもなかった
No manual entry for hddparm

>9
速いですね。 IDE で 30MB/sec. 越えてるの、はじめて見ました。

>12
いぢめんといて(w
ネタだと思うけど念のため。 man hdparm っす。

/dev/hda:
Timing buffer-cache reads: 128 MB in 1.16 seconds =110.34 MB/sec
Timing buffered disk reads: 64 MB in 19.87 seconds = 3.22 MB/sec
[root@fireball]:~-> hdparm -tT /dev/hdb

/dev/hdb:
Timing buffer-cache reads: 128 MB in 1.18 seconds =108.47 MB/sec
Timing buffered disk reads: 64 MB in 6.03 seconds = 10.61 MB/sec

速いのか遅いのかようわからんす

まあ、平均的なところか。

/dev/hda:

Model=FUJITSU MPG3307AT, FwRev=02B9, SerialNo=VG13P1201DB7
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=60046560
IORDY=yes, 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
Timing buffer-cache reads: 128 MB in 0.67 seconds =191.04 MB/sec
Timing buffered disk reads: 64 MB in 2.76 seconds = 23.19 MB/sec

disk readが11.96MB/秒か。おそい。

SeagateのST380021Aの購入を検討してるんですが、
誰か使ってる人います?

# cat /proc/ide/hda/model
IBM-DTTA-351010
# hdparm /dev/hda
/dev/hda:
multcount = 16 (on)
I/O support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 1232/255/63, sectors = 19807200, start = 0
# hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 2.69 seconds = 47.58 MB/sec
Timing buffered disk reads: 64 MB in 5.35 seconds = 11.96 MB/sec

>>10 との違いは udma5 か？

/dev/hda:

Model=IBM-DTLA-307045, FwRev=TX6OA50C, SerialNo=YMDYMT8V657
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=90069840
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)
Drive Supports : ATA/ATAPI-5 T13 1321D revision 1 : ATA-2 ATA-3 ATA-4 ATA-5

Timing buffer-cache reads: 128 MB in 1.23 seconds =104.07 MB/sec
Timing buffered disk reads: 64 MB in 1.95 seconds = 32.82 MB/sec

LANより遅いぞっ

Model=IBM-DPTA-351500, FwRev=P54OA30A, SerialNo=JGYJGT0V480
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=34
BuffType=DualPortCache, BuffSize=425kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=4228907259, LBA=yes, LBAsects=29336832
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
Drive Supports : ATA/ATAPI-4 T13 1153D revision 17 : ATA-1 ATA-2 ATA-3 ATA-4
Kernel Drive Geometry LogicalCHS=1826/255/63 PhysicalCHS=29104/16/63
Timing buffer-cache reads: 128 MB in 10.60 seconds = 12.08 MB/sec
Timing buffered disk reads: 64 MB in 11.88 seconds = 5.39 MB/sec

も一つ。「Timing buffer-cache reads」がどうにも。

Model=FUJITSU MPE3273AH, FwRev=EH-A2-27, SerialNo=01005815
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=4228907259, LBA=yes, LBAsects=53359376
IORDY=yes, tPIO={min:120,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
Drive Supports : ATA-1 ATA-2 ATA-3 ATA-4
Kernel Drive Geometry LogicalCHS=3321/255/63 PhysicalCHS=52935/16/63
Timing buffer-cache reads: 128 MB in 2.23 seconds = 57.40 MB/sec
Timing buffered disk reads: 64 MB in 2.96 seconds = 21.62 MB/sec

>18
うは、 udma4 で 5.39 MB/sec. って一体(笑)

>9
今気付いたけど Timing buffer-cache reads が 556.52 MB/sec. って
凄まじい…

$ sudo hdparm -iTt /dev/hda

/dev/hda:

Model=IBM-DTLA-307030, FwRev=TX4OA50C, SerialNo=YK0YKT7Q703
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=60036480
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
Timing buffer-cache reads: 128 MB in 0.98 seconds =130.61 MB/sec
Timing buffered disk reads: 64 MB in 2.46 seconds = 26.02 MB/sec

BXﾏﾏﾝなんで、ATA33なのだが、悪い結果ではないのかな。
ATA66/100 を Linuxで使うときに ATA33より体感速度は向上する？

-T
Perform timings of cache reads for benchmark and comparison
purposes. For meaningful results, this operation should be repeated
2-3 times on an otherwise inactive system (no other active processes)
with at least a couple of megabytes of free memory. This displays the
speed of reading directly from the Linux buffer cache without disk
access. This measurement is essentially an indication of the
throughput of the processor, cache, and memory of the system under
test. If the -t flag is also specified, then a correction factor based
on the outcome of -T will be incorporated into the result reported for
the -t operation.

-t
Perform timings of device reads for benchmark and comparison purposes.
For meaningful results, this operation should be repeated 2-3 times on
an otherwise inactive system (no other active processes) with at least
a couple of megabytes of free memory. This displays the speed of
reading through the buffer cache to the disk without any prior caching
of data. This measurement is an indication of how fast the drive can
sustain sequential data reads under Linux, without any filesystem
overhead. To ensure accurate measurments, the buffer cache is flushed
during the processing of -t using the BLKFLSBUF ioctl. If the -T flag
is also specified, then a correction factor based on the outcome of -T
will be incorporated into the result reported for the -t operation.

>>20
i850/P4/2GHz/ECC RIMMです。バーストは大したことないけど
もしかすると連続したデータ移動にはi850は強いかも

>23
なるほど。どーりで…
さすが世代が違うって感じですねぇ。

# はぁ、ウチもそろそろ速い機械にしたい…

僅差だけどちと速い(@2.4.13-pre2)

[root@hogehoge]# /sbin/hdparm -tT /dev/hdc

/dev/hdc:
Timing buffer-cache reads: 128 MB in 0.22 seconds =581.82 MB/sec
Timing buffered disk reads: 64 MB in 1.86 seconds = 34.41 MB/sec
[root@hogehoge]# cat /proc/ide/hdc/model
IC35L060AVER07-0

スレタイトル間違ってるけど、興味深いので age.

/dev/hda:
Timing buffer-cache reads: 128 MB in 1.24 seconds =103.23 MB/sec
Timing buffered disk reads: 64 MB in 20.49 seconds = 3.12 MB/sec

これ，もしかして，すごい遅いんですか？

/dev/hda:
Timing buffer-cache reads: 64 MB in 1.62 seconds =39.51 MB/sec
Timing buffered disk reads: 32 MB in 7.26 seconds = 4.41 MB/sec
bash# cat /proc/ide/hda/model
WDC WD136AA

鬱田市納。
DMA 入れると固まるし。

うは、上がってるし。(w

最近組み立てた AthlonXP 1600+(FSB140 駆動) / PC2100 Registered では、
確か cache read が 200MB/sec. ちょいくらいだったかな。

今は Windows しか入ってないんで、詳細なデータ出せなくてスマヌ。。。

1号機
----------
QUANTUM　FIREBALL_TM3200A

Timing buffer-cashe reads: 128MB in 3.96 seconds = 32.32MB/sec
Timing buffered disk reads: 64MB in 9.47 seconds = 6.76MB/sec

-------
FMV-5200T5 with P200

hdparm is a Linux utility for viewing/manipulating various
IDE drive and driver parameters. Most systems can benefit
from improved performance using a command sequence similar to this:

#!/bin/sh
for d in /proc/ide/hd* ; do
if [ `cat $d/media` = 'disk' ]; then
hdparm -qm8 -qu1 -qc1 -qd1 -qW1 /dev/${d##*/}
elif [ `cat $d/media` = 'cdrom' ]; then
hdparm -qu1 -qd1 /dev/${d##*/}
fi
done

# cat /proc/ide/hda/model
WDC WD181AW

# hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.95 seconds =134.74 MB/sec
Timing buffered disk reads: 64 MB in 3.24 seconds = 19.75 MB/sec

IBM-DJSA-220
Timing buffer-cache reads: 128 MB in 0.99 seconds =129.29 MB/sec
Timing buffered disk reads:64 MB in 3.99 seconds = 16.04 MB/sec

/proc/sys/vm/max-readahead = 127
/proc/sys/vm/bdflush = "80 0 0 0 6000 18000 90 0 0"

MAXTOR 4K080H4
/dev/hda:
Timing buffer-cache reads: 128 MB in 2.03 seconds = 63.05 MB/sec
Timing buffered disk reads: 64 MB in 5.24 seconds = 12.21 MB/sec
IBM-DTTA-351680
/dev/hdd:
Timing buffer-cache reads: 128 MB in 1.99 seconds = 64.32 MB/sec
Timing buffered disk reads: 64 MB in 5.39 seconds = 11.87 MB/sec

Filesystem Size Used Avail Use% Mounted on
/dev/hda5 73G 54G 15G 78% /
/dev/hda1 97M 12M 80M 13% /boot
/dev/hdd1 7.9G 7.1G 802M 91% /Win1
/dev/hdd5 7.9G 7.7G 238M 98% /Win2

IBM-DTTA-371440

/dev/hda:
Timing buffer-cache reads: 128 MB in 1.16 seconds =110.34 MB/sec
Timing buffered disk reads: 64 MB in 5.14 seconds = 12.45 MB/sec

/dev/hda:

Model=WDC WD1000BB-32CCB0, FwRev=22.04A22, SerialNo=WD-WMA9P1098928
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=57600, SectSize=600, ECCbytes=40
BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=195371568
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 udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=no
Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5

/dev/hda:
Timing buffer-cache reads: 128 MB in 0.74 seconds =172.97 MB/sec
Timing buffered disk reads: 64 MB in 1.69 seconds = 37.87 MB/sec

# cat /proc/ide/hda/model
WDC WD400BB-00AUA1
# hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 1.17 seconds =109.40 MB/sec
Timing buffered disk reads: 64 MB in 3.39 seconds = 18.88 MB/sec

どうやってチューンナップするかな

# hdparm -itT /dev/hda

/dev/hda:

Model=DupliDisk IDE RAID-1 Adapter( 1.25), FwRev=TAH71DP0, SerialNo=
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
BuffType=3(DualPortCache), BuffSize=2048kB, MaxMultSect=16, MultSect=16
DblWordIO=no, OldPIO=2, DMA=yes, OldDMA=0
CurCHS=16383/16/63, CurSects=4228907259, LBA=yes, LBAsects=20010816
tDMA={min:120,rec:120}, DMA modes: mword0 mword1 *mword2
IORDY=on/off, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4
UDMA modes: mode0 mode1 *mode2 mode3 mode4

Timing buffer-cache reads: 128 MB in 0.97 seconds =131.96 MB/sec
Timing buffered disk reads: 64 MB in 3.63 seconds = 17.63 MB/sec

ソフトウェアRAIDでミラーしてたときはもっと速かったんだが。

cat /proc/ide/hda/model
MAXTOR 4K060H3
hdparm -tT /dev/hda

/dev/hda:
Timing buffer-cache reads: 128 MB in 0.67 seconds =191.04 MB/sec
Timing buffered disk reads: 64 MB in 1.98 seconds = 32.32 MB/sec

cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: QUANTUM Model: ATLAS10K3_18_WLS Rev: 020K
Type: Direct-Access ANSI SCSI revision: 03

hdparm -tT /dev/sda
/dev/sda:
Timing buffer-cache reads: 128 MB in 0.52 seconds =246.15 MB/sec
Timing buffered disk reads: 64 MB in 1.25 seconds = 51.20 MB/sec

/sbin/hdparm -tT /dev/md1

/dev/md1:
Timing buffer-cache reads: 128 MB in 0.47 seconds =272.34 MB/sec
Timing buffered disk reads: 64 MB in 0.60 seconds =106.67 MB/sec

７台の RAID5

うわ、すげぇ。さすが RAID 。 disk reads で 100MB/sec. 越えてるし。

む、 40 さんは一発で 50MB/sec. 越えてる。。。