hdparm -tT

/dev/sda:
Timing cached reads: 498 MB in 2.00 seconds = 248.42 MB/sec
Timing buffered disk reads: 186 MB in 3.01 seconds = 61.78 MB/sec

lshw -class disk|grep product
bash: lshw: command not found

Mire jo ez?Ujabb e-penis lengetes(kinek van nagyobb), vagy mi?

/dev/sda:
Timing cached reads: 4082 MB in 2.00 seconds = 2042.73 MB/sec
Timing buffered disk reads: 142 MB in 3.00 seconds = 47.31 MB/sec

product: WDC WD1600BEVS-0

-----
“Firefox, you say? No I don't play Pokémon”

hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 8170 MB in 2.00 seconds = 4088.73 MB/sec
Timing buffered disk reads: 160 MB in 3.03 seconds = 52.76 MB/sec

lshw -class disk|grep product

product: WDC WD400BD-23LR
____________________
Ha igen akkor miért nem...
Linux 2.6.27-gentoo-r8 i686 Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz GenuineIntel GNU/Linux

Már volt ilyesmi téma asszem, de egyébként:

/dev/md0:
Timing cached reads: 2338 MB in 2.00 seconds = 1169.53 MB/sec
Timing buffered disk reads: 570 MB in 3.01 seconds = 189.38 MB/sec

lshw -class disk|grep product
product: WDC WD2500AAJS-9
product: WDC WD2500AAJS-9

Természetesen RAID0.

> BERUS
Motor: Mandriva Linux 2009.0

/dev/sda:
Timing cached reads: 7336 MB in 2.00 seconds = 3672.17 MB/sec
Timing buffered disk reads: 216 MB in 3.01 seconds = 71.81 MB/sec

product: WDC WD1600AAJS-9

--
"Kernel fordítás, fúj... Pótcselekvés."
Xubuntu 9.04

egyik szerveren gyorsan lemértem

Timing cached reads: 6920 MB in 1.99 seconds = 3472.47 MB/sec
Timing buffered disk reads: 712 MB in 3.01 seconds = 236.67 MB/sec

Egy perc6i vezérlőn lévő Raid5 tömb, ST3400755SS vincsikkel, 256M ram gyorsítótárral, valamint jelenleg is használatban van.

Core2Duo T7100, 2.5G, Ubuntu 9.04, 2.6.28

Timing cached reads: 2056 MB in 2.00 seconds = 1028.05 MB/sec
Timing buffered disk reads: 136 MB in 3.01 seconds = 45.21 MB/sec

product: ST910021AS

Igaz nem egy disk de legyen ilyen is:

/dev/cciss/c0d0:
Timing cached reads: 17606 MB in 1.99 seconds = 8838.13 MB/sec
Timing buffered disk reads: 404 MB in 3.00 seconds = 134.66 MB/sec

Intel X58+ICH7 (4,8MT/s QPI 3channel 1066MHz DDR3), HP Smart Array E200 (8x1T SATA HDD RAID5)

asztali:
/dev/sda:
product: WDC WD3200AAKS-0
Timing O_DIRECT cached reads: 490 MB in 2.00 seconds = 244.58 MB/sec
Timing O_DIRECT disk reads: 294 MB in 3.00 seconds = 97.87 MB/sec

/dev/sdb:
product: WDC WD5001AALS-0
Timing O_DIRECT cached reads: 494 MB in 2.01 seconds = 246.29 MB/sec
Timing O_DIRECT disk reads: 278 MB in 3.00 seconds = 92.63 MB/sec

/dev/sdc:
product: WDC WD3200AAKS-0
Timing O_DIRECT cached reads: 490 MB in 2.01 seconds = 244.23 MB/sec
Timing O_DIRECT disk reads: 310 MB in 3.02 seconds = 102.70 MB/sec

/dev/sdd:
product: WDC WD2500AAJB-0
Timing O_DIRECT cached reads: 176 MB in 2.01 seconds = 87.42 MB/sec
Timing O_DIRECT disk reads: 238 MB in 3.02 seconds = 78.92 MB/sec

/dev/mapper/nvidia_ddefehed: (sda+sdc)
Timing O_DIRECT cached reads: 808 MB in 2.00 seconds = 403.65 MB/sec
Timing O_DIRECT disk reads: 580 MB in 3.00 seconds = 193.30 MB/sec

eeebox:
/dev/sda:
product: ST9160310AS
Timing cached reads: 1218 MB in 2.00 seconds = 609.32 MB/sec
Timing buffered disk reads: 196 MB in 3.02 seconds = 64.86 MB/sec

laptop:
/dev/sda:
product: FUJITSU MHZ2250B
Timing cached reads: 3664 MB in 2.00 seconds = 1833.96 MB/sec
Timing buffered disk reads: 174 MB in 3.01 seconds = 57.86 MB/sec

/dev/sdb:
product: WD 1600BEV External (WDMER1600TE "Passport")
Timing cached reads: 3664 MB in 2.00 seconds = 1834.18 MB/sec
Timing buffered disk reads: 92 MB in 3.02 seconds = 30.47 MB/sec

laptop vinyó csere után:
/dev/sda:
product: WDC WD3200BJKT-0
Timing cached reads: 3756 MB in 2.00 seconds = 1881.19 MB/sec
Timing buffered disk reads: 252 MB in 3.02 seconds = 83.39 MB/sec

és csak úgy az adatbázis kedvéért:

product: SAMSUNG SP2514N
Timing O_DIRECT cached reads: 182 MB in 2.02 seconds = 90.12 MB/sec
Timing O_DIRECT disk reads: 210 MB in 3.02 seconds = 69.53 MB/sec

product: SAMSUNG HD250HJ
Timing O_DIRECT cached reads: 390 MB in 2.00 seconds = 194.71 MB/sec
Timing O_DIRECT disk reads: 306 MB in 3.01 seconds = 101.73 MB/sec

product: WDC WD2500JS-55N
Timing O_DIRECT cached reads: 394 MB in 2.00 seconds = 196.95 MB/sec
Timing O_DIRECT disk reads: 178 MB in 3.03 seconds = 58.78 MB/sec

product: WDC WD3200AAKS-0
Timing cached reads: 1566 MB in 2.00 seconds = 783.33 MB/sec
Timing buffered disk reads: 236 MB in 3.03 seconds = 77.86 MB/sec

--------------------------------
feel the beat - it's everywhere!

régi 20G vinyó celeron2 gépben nagyon küldi :)
product: Maxtor 5T020H2
Timing cached reads: 170 MB in 2.01 seconds = 84.71 MB/sec
Timing buffered disk reads: 80 MB in 3.01 seconds = 26.54 MB/sec

hron@omicron ~ $ sudo lshw -class disk | grep product
       product: WDC WD1600BEVT-2
hron@omicron ~ $ sudo hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   1578 MB in  2.00 seconds = 788.90 MB/sec
 Timing buffered disk reads:  170 MB in  3.01 seconds =  56.50 MB/sec

--

()=() Ki oda vagyik,
('Y') hol szall a galamb
C . C elszalasztja a
()_() kincset itt alant.

/dev/sda:
Timing cached reads: 7580 MB in 2.00 seconds = 3795.26 MB/sec
Timing buffered disk reads: 244 MB in 3.01 seconds = 80.95 MB/sec
product: SAMSUNG HD403LJ

/dev/sdb:
Timing cached reads: 7330 MB in 2.00 seconds = 3671.24 MB/sec
Timing buffered disk reads: 252 MB in 3.01 seconds = 83.78 MB/sec
product: SAMSUNG HD403LJ

/dev/sdc:
Timing cached reads: 7300 MB in 2.00 seconds = 3654.83 MB/sec
Timing buffered disk reads: 342 MB in 3.00 seconds = 113.85 MB/sec
product: SAMSUNG HD103UJ

nem a gyozelem a fontos hanem a reszvetel:

/dev/sda:
Timing cached reads: 670 MB in 2.01 seconds = 334.09 MB/sec
Timing buffered disk reads: 88 MB in 3.05 seconds = 28.90 MB/sec

A lista másik vége:

hdparm -tT /dev/hda

/dev/hda:
Timing cached reads: 62 MB in 2.04 seconds = 30.32 MB/sec
Timing buffered disk reads: 20 MB in 3.07 seconds = 6.51 MB/sec

lshw -class disk| grep product
product: ST31720A

---------------

hdparm -tT /dev/hda

/dev/hda:
Timing cached reads: 136 MB in 2.01 seconds = 67.72 MB/sec
Timing buffered disk reads: 10 MB in 3.53 seconds = 2.83 MB/sec

lshw -class disk| grep prod
product: Hitachi XX.V.3.4.0.0 /CF kartya IDE csatolóval/

hdparm -tT /dev/cciss/c0d0

/dev/cciss/c0d0:
Timing cached reads: 9270 MB in 2.00 seconds = 4640.01 MB/sec
Timing buffered disk reads: 256 MB in 3.02 seconds = 84.89 MB/sec

hpacucli ctrl slot=3 pd all show detail| grep Model
Model: HP DG146BB976
Model: HP DG146BB976
/hw raid-1/

/dev/sda
Timing cached reads: 2112 MB in 2.00 seconds = 1056.44 MB/sec
Timing buffered disk reads: 120 MB in 3.02 seconds = 39.78 MB/sec

product: FUJITSU MHW2120B (laptopwinyó)

Egy SSD:

Timing cached reads: 2776 MB in 1.99 seconds = 1391.63 MB/sec
Timing buffered disk reads: 284 MB in 3.01 seconds = 94.27 MB/sec

ata1.00: ATA-8: OCZ CORE_SSD, 02.10103, max UDMA/100
00:1f.2 SATA controller: Intel Corporation Mobile SATA AHCI Controller (rev 03)
( 82801HBM/HEM (ICH8M/ICH8M-E) )

Annak lenne még értelme, hogy mekkora IO/s-re képes az adott diszk alrendszer, nem csak az olvasási sebességre.

--
http://laszlo.co.hu/

××/×× # for i in a b c; do hdparm -I /dev/sd$i | grep Model && hdparm -tT /dev/sd$i;echo ---; done
Model Number: WDC WD1500ADFD-00NLR1

/dev/sda:
Timing cached reads: 3992 MB in 2.00 seconds = 1996.26 MB/sec
Timing buffered disk reads: 268 MB in 3.01 seconds = 88.90 MB/sec
---
Model Number: SAMSUNG HD321KJ

/dev/sdb:
Timing cached reads: 3894 MB in 2.00 seconds = 1947.49 MB/sec
Timing buffered disk reads:

Otthoni gép (Asrock efire2 sima dzsunkalap , Cpu 1.8 Core2duo + 4G ram)

Sys
product: SAMSUNG HD501LJ
/dev/sda:
Timing cached reads: 2378 MB in 2.00 seconds = 1189.48 MB/sec
Timing buffered disk reads: 248 MB in 3.01 seconds = 82.28 MB/sec

Data
product: ST31000333AS

root@fw:~# hdparm -tT /dev/sdb

/dev/sdb:
Timing cached reads: 2382 MB in 2.00 seconds = 1190.65 MB/sec
Timing buffered disk reads: 354 MB in 3.01 seconds = 117.56 MB/sec

root@fw:~# lspci
00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub (rev 81)
00:01.0 PCI bridge: Intel Corporation 82945G/GZ/P/PL PCI Express Root Port (rev 81)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
00:1c.4 PCI bridge: Intel Corporation 82801GR/GH/GHM (ICH7 Family) PCI Express Port 5 (rev 01)
00:1c.5 PCI bridge: Intel Corporation 82801GR/GH/GHM (ICH7 Family) PCI Express Port 6 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01)
00:1f.2 SATA controller: Intel Corporation 82801GR/GH (ICH7 Family) SATA AHCI Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet (rev 10)
01:01.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306 Fire II IEEE 1394 OHCI Link Layer Controller (rev 46)
01:02.0 Multimedia controller: Philips Semiconductors SAA7131/SAA7133/SAA7135 Video Broadcast Decoder (rev d0)
01:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
05:00.0 VGA compatible controller: nVidia Corporation G72 [GeForce 7300 LE] (rev a1)

Szijártó Zoltán
Aki tud az alkot, aki nem tud az csak szövegel.

hdparm -mal nem rendelkezem.

[root@sun:~]$ dd if=/dev/aacd0 of=/dev/null bs=100M count=10
10+0 records in
10+0 records out
1048576000 bytes transferred in 2.339567 secs (448192347 bytes/sec)
[root@sun:~]$

Notebook:
/dev/sda:
Timing cached reads: 924 MB in 2.00 seconds = 461.83 MB/sec
Timing buffered disk reads: 108 MB in 3.02 seconds = 35.80 MB/sec
product: SAMSUNG HM160JC
(ThinkPad R51, Pentum M1.7Ghz, 2G RAM)

Szerver:
/dev/sda:
Timing cached reads: 520 MB in 2.01 seconds = 259.23 MB/sec
Timing buffered disk reads: 168 MB in 3.02 seconds = 55.67 MB/sec
product: 9500S-8 DISK (RAID1: WDC WD5001ABYS)
/dev/sdb:
Timing cached reads: 522 MB in 2.01 seconds = 260.23 MB/sec
Timing buffered disk reads: 188 MB in 3.00 seconds = 62.58 MB/sec
product: 9500S-8 DISK (RAID1: WD360ADFD)
/dev/sdc:
Timing cached reads: 510 MB in 2.00 seconds = 254.87 MB/sec
Timing buffered disk reads: 184 MB in 3.01 seconds = 61.10 MB/sec
product: 9500S-8 DISK (RAID1: WDC WD5001ABYS)
(Athlon MP 2.0Ghz, 3.5Gb RAM, alacsony load, az sdc egy mentéshez használt eszköz)

Több gigabájt másolásakor a laptop olyan 29-30Mb/s-t tud írni, a szerver RAID olyan 38-39Mb/s körül teljesít.

Üdv,
Dw.

"Jegyezze fel a vádhoz - utasította Metcalf őrnagy a tizedest, aki tudott gyorsírni. - Tiszteletlenül beszélt a feljebbvalójával, amikor nem pofázott közbe."

Timing cached reads: 178 MB in 2.01 seconds = 88.60 MB/sec
Timing buffered disk reads: 84 MB in 3.03 seconds = 27.72 MB/sec
product: MC8GE08G5MPP
Ennyit bir a cpu-m na! A disk (SSD) tudna többet.
model name : Mobile Pentium II
cpu MHz : 364.746

Timing cached reads: 1088 MB in 2.00 seconds = 543.95 MB/sec
Timing buffered disk reads: 156 MB in 3.03 seconds = 51.48 MB/sec

ata1.00: ATA-7: SAMSUNG SP0411C/R, UU100-05, max UDMA/100
00:14.1 IDE interface: ATI Technologies Inc IXP SB400 IDE Controller

DISK-enként:

/dev/sda:
Timing cached reads: 6804 MB in 2.00 seconds = 3404.38 MB/sec
Timing buffered disk reads: 212 MB in 3.01 seconds = 70.37 MB/sec

/dev/sdb:
Timing cached reads: 6314 MB in 2.00 seconds = 3159.48 MB/sec
Timing buffered disk reads: 214 MB in 3.07 seconds = 69.66 MB/sec

/dev/sdc:
Timing cached reads: 6694 MB in 2.00 seconds = 3349.74 MB/sec
Timing buffered disk reads: 268 MB in 3.01 seconds = 88.97 MB/sec

/dev/sdd:
Timing cached reads: 6906 MB in 2.00 seconds = 3455.44 MB/sec
Timing buffered disk reads: 270 MB in 3.02 seconds = 89.54 MB/sec

/dev/sde:
Timing cached reads: 6668 MB in 2.00 seconds = 3336.63 MB/sec
Timing buffered disk reads: 256 MB in 3.01 seconds = 85.10 MB/sec

RAID-enként:

/dev/md0 (raid1):
Timing cached reads: 6896 MB in 2.00 seconds = 3450.27 MB/sec
Timing buffered disk reads: 78 MB in 1.04 seconds = 74.85 MB/sec

/dev/md1 (raid1):
Timing cached reads: 6758 MB in 2.00 seconds = 3381.29 MB/sec
Timing buffered disk reads: 230 MB in 3.01 seconds = 76.29 MB/sec

/dev/md2 (raid1):
Timing cached reads: 7094 MB in 2.00 seconds = 3549.89 MB/sec
Timing buffered disk reads: 114 MB in 3.02 seconds = 37.78 MB/sec

/dev/md3 (raid5):
Timing cached reads: 7166 MB in 2.00 seconds = 3586.01 MB/sec
Timing buffered disk reads: 494 MB in 3.01 seconds = 164.26 MB/sec

lshw -class disk|grep product
product: WDC WD2500AAJS-0
product: WDC WD2500AAJS-0
product: WDC WD7500AAKS-0
product: WDC WD7500AAKS-0
product: WDC WD7500AAKS-0

Egy hw raides (raid5) gép:

/dev/sda:
Timing cached reads: 6518 MB in 2.00 seconds = 3262.13 MB/sec
Timing buffered disk reads: 478 MB in 3.00 seconds = 159.25 MB/sec

lshw -class disk|grep product
product: PERC 5/i Adapter

/dev/sda:
Timing cached reads: 5948 MB in 1.99 seconds = 2990.50 MB/sec
Timing buffered disk reads: 90 MB in 3.02 seconds = 29.77 MB/sec

product: WDC WD1600BEVS-2

---
遣る気でない　遊びたい ! (=w=)

Egy Acer TravelMate 6292 noti SSD-vel ext4-el:

/dev/sda:
Timing cached reads: 6686 MB in 1.99 seconds = 3352.12 MB/sec
Timing buffered disk reads: 392 MB in 3.00 seconds = 130.52 MB/sec

root@uranus:~# for i in a b; do hdparm -I /dev/sd$i | grep Model && hdparm -tT /dev/sd$i; done
Model Number: MAXTOR STM380215A

/dev/sda:
Timing cached reads: 382 MB in 2.01 seconds = 190.28 MB/sec
Timing buffered disk reads: 176 MB in 3.01 seconds = 58.39 MB/sec

Model Number: MAXTOR STM3160215A

/dev/sdb:
Timing cached reads: 398 MB in 2.00 seconds = 198.72 MB/sec
Timing buffered disk reads: 166 MB in 3.01 seconds = 55.12 MB/sec

IBM NetVista Type 6792-22G

________
kötöjelkötöjel
Pedig ez nem az!

WD VelociRaptor

# for i in a b; do hdparm -I /dev/sd$i | grep Model && hdparm -tT /dev/sd$i; done
        Model Number:       WDC WD3000GLFS-01F8U0

/dev/sda:
 Timing cached reads:   13018 MB in  2.00 seconds = 6517.24 MB/sec
 Timing buffered disk reads:  344 MB in  3.01 seconds = 114.31 MB/sec
 HDIO_DRIVE_CMD(identify) failed: Invalid argument
# dd if=/dev/sda of=/dev/null bs=100M count=10
10+0 beolvasott rekord
10+0 kiírt rekord
1048576000 bájt (1,0 GB) másolva, 8,70865 mp, 120 MB/mp

Magába:

        Model Number:       SAMSUNG HD252HJ

/dev/sda:
 Timing cached reads:   14456 MB in  1.99 seconds = 7248.45 MB/sec
 Timing buffered disk reads:  314 MB in  3.01 seconds = 104.31 MB/sec

És két ilyenből raid0:

/dev/md3:
 Timing cached reads:   14186 MB in  1.99 seconds = 7112.85 MB/sec
 Timing buffered disk reads:  440 MB in  3.01 seconds = 147.27 MB/sec

És raid1:

/dev/mapper/vg1-Home:
 Timing cached reads:   14344 MB in  1.99 seconds = 7192.40 MB/sec
 Timing buffered disk reads:  316 MB in  3.01 seconds = 104.98 MB/sec

--
Discover It - Have a lot of fun!

/dev/md2:
Timing cached reads: 25964 MB in 1.99 seconds = 13016.37 MB/sec
Timing buffered disk reads: 636 MB in 3.03 seconds = 209.74 MB/sec

4* Samsung 750GB, RAID5

Timing cached reads: 2076 MB in 2.00 seconds = 1038.98 MB/sec
Timing buffered disk reads: 166 MB in 3.00 seconds = 55.32 MB/sec

product: TOSHIBA MK1252GS

Sziasztok

2*1Terra raid1 Samsung (16 M cache):

/dev/md3:
Timing cached reads: 1942 MB in 2.00 seconds = 970.55 MB/sec
Timing buffered disk reads: 320 MB in 3.00 seconds = 106.52 MB/sec

ESX raid5 6db SAS-on futó virtuális gépen:

/dev/sda1:
Timing cached reads: 10046 MB in 1.99 seconds = 5036.59 MB/sec
Timing buffered disk reads: 138 MB in 3.01 seconds = 45.79 MB/sec

Sun STK RAID INT hw raid10 (adaptec chip-es 256 MB-os sas kartya), 6xSEAGATE Savvio 10K.2 146 gb-os vinyo:

/dev/sda3:
Timing cached reads: 10592 MB in 2.00 seconds = 5300.93 MB/sec
Timing buffered disk reads: 814 MB in 3.00 seconds = 271.06 MB/sec

kifelejtettem, h terheles alatt mertem..

MSI Wind 2GB RAM:

/dev/sda:
Timing cached reads: 1094 MB in 2.00 seconds = 546.54 MB/sec
Timing buffered disk reads: 208 MB in 3.02 seconds = 68.93 MB/sec

product: SAMSUNG HM500LI

# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 9030 MB in 1.99 seconds = 4526.93 MB/sec
Timing buffered disk reads: 444 MB in 3.00 seconds = 147.91 MB/sec

# sync
# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 12370 MB in 1.99 seconds = 6201.99 MB/sec
Timing buffered disk reads: 420 MB in 3.00 seconds = 139.81 MB/sec

OCZ AGILITY

java'nother blog

/dev/sda:
Timing cached reads: 1972 MB in 2.00 seconds = 986.08 MB/sec
Timing buffered disk reads: 214 MB in 3.02 seconds = 70.84 MB/sec

/dev/mapper/vg_osiris-lv_root:
Timing cached reads: 1846 MB in 2.00 seconds = 923.44 MB/sec
Timing buffered disk reads: 212 MB in 3.02 seconds = 70.18 MB/sec

description: ATA Disk
product: ST3200820A

----------------------------------
Fedora 12 x86_64
Freedom. Friends. Features. First.

hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 2656 MB in 2.00 seconds = 1327.74 MB/sec
Timing buffered disk reads: 286 MB in 3.01 seconds = 95.06 MB/sec

lshw -class disk|grep product
product: ST3320613AS

Timing cached reads: 3666 MB in 2.00 seconds = 1834.81 MB/sec
Timing buffered disk reads: 274 MB in 3.00 seconds = 91.25 MB/sec

product: SAMSUNG HE502IJ

/dev/hda1:
Timing cached reads: 114 MB in 2.02 seconds = 56.34 MB/sec
Timing buffered disk reads: 44 MB in 3.01 seconds = 14.62 MB/sec

product: ST36424A

Szerintem értelmesebb lett volna egy --direct kaplcsolót is beletenni, akkor legalább a CPU kimaradna a cache mérésből.

egyedi diszkek az otthoni szerveremben:

Seagate ST3500320AS

/dev/sda:
Timing cached reads: 11014 MB in 2.00 seconds = 5516.63 MB/sec
Timing buffered disk reads: 316 MB in 3.02 seconds = 104.68 MB/sec

6 diszkes raid5:

/dev/md5:
Timing cached reads: 12300 MB in 2.00 seconds = 6162.03 MB/sec
Timing buffered disk reads: 1010 MB in 3.01 seconds = 336.00 MB/sec

ui: enyhe MySQL terhelés alatt.

Itthoni gep:

hanzo@hanzo:~$ sudo lshw -class disk|grep product
product: ST3250410AS
product: Hitachi HDT72105
hanzo@hanzo:~$ sudo hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 720 MB in 2.00 seconds = 359.67 MB/sec
Timing buffered disk reads: 254 MB in 3.02 seconds = 84.15 MB/sec

--
http://szolarenergia.hu

HP Blade Center, 1 Terras diszkekkel:

/dev/sdb:
Timing cached reads: 7486 MB in 1.99 seconds = 3753.72 MB/sec
Timing buffered disk reads: 370 MB in 3.01 seconds = 123.03 MB/sec

--
http://szolarenergia.hu

neptunus:~# hdparm -tT /dev/hda

/dev/hda:
Timing cached reads: 576 MB in 2.00 seconds = 288.02 MB/sec
Timing buffered disk reads: 60 MB in 3.08 seconds = 19.48 MB/sec
neptunus:~# lshw -class disk|grep product
product: IC25N040ATCS04-0

neptunus:~# hdparm --direct -tT /dev/hda

/dev/hda:
Timing O_DIRECT cached reads: 36 MB in 2.06 seconds = 17.51 MB/sec
Timing O_DIRECT disk reads: 58 MB in 3.07 seconds = 18.92 MB/sec

'lekene sslje'

azenoldalamponthu

SAMSUNG HD502HJ

hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 18996 MB in 2.00 seconds = 9508.60 MB/sec
Timing buffered disk reads: 408 MB in 3.00 seconds = 135.83 MB/sec

hdparm -tT /dev/sdb

/dev/sdb:
Timing cached reads: 19178 MB in 2.00 seconds = 9599.54 MB/sec
Timing buffered disk reads: 406 MB in 3.00 seconds = 135.23 MB/sec

Ezek Raid0-ban:
hdparm -tT /dev/md20

/dev/md20:
Timing cached reads: 19108 MB in 2.00 seconds = 9563.82 MB/sec
Timing buffered disk reads: 812 MB in 3.01 seconds = 269.99 MB/sec

hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 6106 MB in 1.99 seconds = 3071.32 MB/sec
Timing buffered disk reads: 144 MB in 3.04 seconds = 47.30 MB/sec

lshw -class disk|grep product
product: WDC WD1600BEVS-0

** lenovo T61 **

/dev/sda:
Timing cached reads: 17778 MB in 2.00 seconds = 8900.46 MB/sec
Timing buffered disk reads: 322 MB in 3.01 seconds = 107.13 MB/sec

/dev/sdb:
Timing cached reads: 18166 MB in 2.00 seconds = 9095.45 MB/sec
Timing buffered disk reads: 720 MB in 3.01 seconds = 239.37 MB/sec

Az sda egy WD Black 1TB, Model=WDC WD1001FALS-00J7B0
Kis csalás, hogy az sdb egy SSD :) Model=INTEL SSDSA2M080G2GC
(Működő rendszer mellett mértem, a rendszer az ssd-n van, a hdd pedig háttéranyagokat tárol)

[root@localhost ~]# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 904 MB in 2.00 seconds = 451.97 MB/sec
Timing buffered disk reads: 108 MB in 3.05 seconds = 35.42 MB/sec
[root@localhost ~]# lshw -class disk|grep product
product: ST9160821AS
product: CDDVDW TS-L632H
[root@localhost ~]# hdparm --direct -tT /dev/sda

/dev/sda:
Timing O_DIRECT cached reads: 112 MB in 2.01 seconds = 55.84 MB/sec
Timing O_DIRECT disk reads: 114 MB in 3.09 seconds = 36.94 MB/sec

Adaptec 5805 Unified Raid Controller, 6 x 1TB Samsung HE103UJ, RAID5

root@giant:~# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 17742 MB in 1.99 seconds = 8896.83 MB/sec
Timing buffered disk reads: 1490 MB in 3.00 seconds = 496.62 MB/sec

/dev/xvda:
Timing cached reads: 15828 MB in 1.99 seconds = 7953.15 MB/sec
Timing buffered disk reads: 872 MB in 3.00 seconds = 290.55 MB/sec

melohelyen gepem:
/dev/sda:
Timing cached reads: 1268 MB in 2.00 seconds = 633.71 MB/sec
Timing buffered disk reads: 178 MB in 3.03 seconds = 58.72 MB/sec
product: WDC WD1600YS-01S

egyik (backup) "szerver":

/dev/sda:
Timing cached reads: 2218 MB in 2.00 seconds = 1108.56 MB/sec
Timing buffered disk reads: 178 MB in 3.03 seconds = 58.70 MB/sec

RAID1 ebben:
Timing cached reads: 2380 MB in 2.00 seconds = 1189.28 MB/sec
Timing buffered disk reads: 270 MB in 3.01 seconds = 89.82 MB/sec

product: WDC WD1600YS-01S
product: Hitachi HDP72505
product: Hitachi HDP72505

/dev/sda:
Timing cached reads: 1092 MB in 2.00 seconds = 545.95 MB/sec
Timing buffered disk reads: 168 MB in 3.02 seconds = 55.60 MB/sec

product: SAMSUNG SP0401N

/dev/sdb:
Timing cached reads: 1092 MB in 2.00 seconds = 545.66 MB/sec
Timing buffered disk reads: 174 MB in 3.01 seconds = 57.81 MB/sec

product: Maxtor 6E040L0

Dell PowerEdge 4350:
/dev/sda:
Timing cached reads: 262 MB in 2.00 seconds = 130.90 MB/sec
Timing buffered disk reads: 58 MB in 3.05 seconds = 19.03 MB/sec

product: IBM DNES-309170Y

/dev/sdb:
Timing cached reads: 274 MB in 2.01 seconds = 136.21 MB/sec
Timing buffered disk reads: 200 MB in 3.01 seconds = 66.38 MB/sec

product: MAXTOR ATLAS10K4_36SCA

/dev/sda:
Timing cached reads: 2216 MB in 2.00 seconds = 1107.82 MB/sec
Timing buffered disk reads: 226 MB in 3.00 seconds = 75.23 MB/sec

/dev/sdb:
Timing cached reads: 2238 MB in 2.00 seconds = 1118.72 MB/sec
Timing buffered disk reads: 158 MB in 3.01 seconds = 52.45 MB/sec

product: ST380815AS
product: WDC WD800JD-60JR