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

/dev/sda:

Model=C300-CTFDDAC064MAG, FwRev=0002, SerialNo=00000000103002FC2EC4
Config={ Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=125045424
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-3,4,5,6,7

* signifies the current active mode

Timing cached reads: 7628 MB in 2.00 seconds = 3815.32 MB/sec
Timing buffered disk reads: 750 MB in 3.00 seconds = 249.72 MB/sec

/dev/sdb:

Model=WDC WD60EFRX-68MYMN1, FwRev=82.00A82, SerialNo=WD-WX11D1414773
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=11721045168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: Reserved: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 30622 MB in 2.00 seconds = 15331.17 MB/sec
Timing buffered disk reads: 518 MB in 3.01 seconds = 171.99 MB/sec

6T買った。ほとんどアニメ動画です。

test　test　test

テストはこっちで。

test
http://maguro.2ch.net/test/read.cgi/linux/1341351394/

thanks for your advice, i've got it :)
please forgive my selfish behavior to this thread.

SSD単体
# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 8578 MB in 2.00 seconds = 4293.74 MB/sec
Timing buffered disk reads: 1360 MB in 3.00 seconds = 453.22 MB/sec

SSD5台によるRAID0
# hdparm -tT /dev/md0
/dev/md0:
Timing cached reads: 8558 MB in 2.00 seconds = 4283.58 MB/sec
Timing buffered disk reads: 2512 MB in 3.00 seconds = 836.70 MB/sec

SSD5台によるRAID10
# hdparm -tT /dev/md1
/dev/md1:
Timing cached reads: 8720 MB in 2.00 seconds = 4364.81 MB/sec
Timing buffered disk reads: 2248 MB in 3.00 seconds = 748.93 MB/sec

>>453
RAID0組んでも、readそんなに上がらないのか

>454
cached read が 4GB/s のマシンだと他が足引っ張ってる気がしなくもない。

糞古い40GBのHDDからSSDに変更するまえの自分用メモ
DG33BU C2D-E4400 DDR667-2GB WD400JD-40GB

/sbin/hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 2282 MB in 2.00 seconds = 1140.90 MB/sec
Timing buffered disk reads: 176 MB in 3.03 seconds = 58.04 MB/sec

Cubox-iにUSBフラッシュx2コをおごってRAID5組んだ結果

hdparm -tT /dev/mmcblk0p1 /dev/md0

/dev/mmcblk0p1:
Timing cached reads: 686 MB in 2.00 seconds = 342.98 MB/sec
Timing buffered disk reads: 62 MB in 3.07 seconds = 20.18 MB/sec

/dev/md0:
Timing cached reads: 726 MB in 2.00 seconds = 362.45 MB/sec
Timing buffered disk reads: 148 MB in 3.01 seconds = 49.15 MB/sec

SSDとか色々変更して5年ぶりに鯖を組み直した結果
DG45ID Cele-E3300 DDR800-2GB X25-V 40GB

/sbin/hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 2550 MB in 2.00 seconds = 1274.75 MB/sec
Timing buffered disk reads: 518 MB in 3.01 seconds = 172.14 MB/sec

今となってはヘボいSSDだけど、起動速度を筆頭にメッチャ効果あるな

1年半前から使っているノートだが、ここらでSSDにのせかえてみる
SSDはCrucialのMX300 2.5-inch SSD(1TB)

Timing cached reads: 25194 MB in 2.00 seconds = 12609.64 MB/sec
Timing buffered disk reads: 1406 MB in 3.00 seconds = 468.24 MB/sec

うむ、もうしばらく使えるな

Model=WDC WD10EADS-00L5B1, FwRev=01.01A01,

Timing cached reads: 3164 MB in 2.00 seconds = 1581.42 MB/sec
Timing buffered disk reads: 272 MB in 3.02 seconds = 90.10 MB/sec


あれ・・・ もしかしてかなり遅いのか？

だが断る

nvmeにしてみた

Model Number: INTEL SSDPEKKW256G7
Firmware Version: PSF109C

Timing cached reads: 38856 MB in 2.00 seconds = 19453.45 MB/sec
Timing buffered disk reads: 2300 MB in 3.00 seconds = 766.25 MB/sec

SATAのSSDと体感速度そんなに変わらないorz

誰でも簡単にパソコン1台で稼げる方法など
参考までに、
⇒　『宮本のゴウリエセレレ』 というブログで見ることができるらしいです。

グーグル検索⇒『宮本のゴウリエセレレ』

0P50SBIJHL

2年ぶりに鯖を組みなおした結果（SSDは同じ）
DH77EB Pentium-G2030 DDR3-1333/4GB X25-V 40GB

/sbin/hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 13150 MB in 2.00 seconds = 6588.56 MB/sec
Timing buffered disk reads: 524 MB in 3.00 seconds = 174.60 MB/sec

メモリ帯域のジャンプアップが半端ないな
こんなに性能必要ないけど、リプレイスは気持ちいい

僕の知り合いの知り合いができた副業情報ドットコム
関心がある人だけ見てください。
グーグルで検索するといいかも『ネットで稼ぐ方法　モニアレフヌノ』

F4JKO