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Re: Hard drive speed

PostPosted: Wed Apr 30, 2008 4:16 pm
by Revro
ok you are going to laugh yourselfto death :)

on my P3,733MHz,384MB RAM:
my 20GB HDD had buffered read 200kB/s
my 80GB HDD had buffered read 20MB/s

my colleague tried to tweak the 20GB harddrive but i guess its just too old altough he managed to get it to 1,7MB/s :)

but anyway i use now the 80GB harddrive on that machine

Re: Hard drive speed

PostPosted: Wed Apr 30, 2008 4:34 pm
by DaddyX3
Revro wrote:ok you are going to laugh yourselfto death :)

on my P3,733MHz,384MB RAM:
my 20GB HDD had buffered read 200kB/s
my 80GB HDD had buffered read 20MB/s

my colleague tried to tweak the 20GB harddrive but i guess its just too old altough he managed to get it to 1,7MB/s :)

but anyway i use now the 80GB harddrive on that machine

That is pretty funny. That is just a little less than what my USB thumb-drive puts out! :lol:
(which by the way - you can test the out put of your thumbdrive by doing a sudo fdisk -l with out it plugged in and then repeat with it plugged in which you will then be able to tell what /dev/sd? it is and run the same test as your hard drive [sudo hdparm -t or T)

Re: Hard drive speed

PostPosted: Wed Apr 30, 2008 6:34 pm
by SaddleTramp
Asus A8M2N-LA
AMD Athlon 3800+ 64 X2
1Gb DDR2 4200
Samsung SP2504C 250Gb Sata@3Gb/s (sda1,2,3)
WD Caviar SE16 320Gb Sata @3Gb/s (sdb1)

CACHED:

/dev/sda1:
Timing cached reads: 1244 MB in 2.00 seconds = 621.86 MB/sec
/dev/sda2:
Timing cached reads: 1466 MB in 2.00 seconds = 732.82 MB/sec
/dev/sda3:
Timing cached reads: 1312 MB in 2.00 seconds = 656.25 MB/sec

/dev/sdb1:
Timing cached reads: 1470 MB in 2.00 seconds = 735.07 MB/sec


OVERALL:

/dev/sda1:
Timing buffered disk reads: 156 MB in 3.00 seconds = 51.98 MB/sec
/dev/sda2:
Timing buffered disk reads: 172 MB in 3.05 seconds = 56.37 MB/sec
/dev/sda3:
Timing buffered disk reads: 180 MB in 3.01 seconds = 59.75 MB/sec

/dev/sdb1:
Timing buffered disk reads: 274 MB in 3.02 seconds = 90.84 MB/sec

Think I fall in the average (I hope :lol:)

Re: Hard drive speed

PostPosted: Thu May 08, 2008 11:46 am
by drama
updated numbers

Code: Select all
jeremy@deadlly-soundz-07:~$ sudo hdparm -T /dev/sda

/dev/sda:
 Timing cached reads:   1300 MB in  2.00 seconds = 649.54 MB/sec

jeremy@deadlly-soundz-07:~$ sudo hdparm -T /dev/sdb

/dev/sdb:
 Timing cached reads:   1188 MB in  2.00 seconds = 593.77 MB/sec

jeremy@deadlly-soundz-07:~$ sudo hdparm -t /dev/sda

/dev/sda:
 Timing buffered disk reads:  234 MB in  3.01 seconds =  77.81 MB/sec

jeremy@deadlly-soundz-07:~$ sudo hdparm -t /dev/sdb

/dev/sdb:
 Timing buffered disk reads:  236 MB in  3.02 seconds =  78.07 MB/sec



up a decent amount from back in november. up about 300 on cached & almost 100 on buffered. no tweaks at all. i attribute that to the fact i went from 512 to 1gig on ram. thats the only thing thats changed other than a newer version of Ultimate Edition.

both are seagate 500gb 1.5gbps edition

Re: Hard drive speed

PostPosted: Thu May 08, 2008 11:54 am
by SaddleTramp
hmmmmm...seems that even adding just a little bit of RAM makes a BIGGER difference in *nixland than over in the "dark side" ;)

Re: Hard drive speed

PostPosted: Thu Oct 16, 2008 10:47 pm
by VanillaTbone
Benchmarked my Western Digital Raptor 36.7 first...

Code: Select all
vanillatbone@VanillaPC:~$ sudo hdparm -T /dev/sda

/dev/sda:
 Timing cached reads:   2596 MB in  2.00 seconds = 1298.00 MB/sec


Code: Select all
vanillatbone@VanillaPC:~$ sudo hdparm -t /dev/sda

/dev/sda:
 Timing buffered disk reads:  188 MB in  3.03 seconds =  62.08 MB/sec


Then onto my very old Seagate 200GB SATA drive:

Code: Select all
vanillatbone@VanillaPC:~$ sudo hdparm -T /dev/sdb

/dev/sdb:
 Timing cached reads:   2456 MB in  2.00 seconds = 1228.42 MB/sec


Code: Select all
vanillatbone@VanillaPC:~$ sudo hdparm -t /dev/sdb

/dev/sdb:
 Timing buffered disk reads:  176 MB in  3.01 seconds =  58.42 MB/sec

Re: Hard drive speed

PostPosted: Sat Oct 18, 2008 3:01 pm
by ixnod
ixnod@Obfuscated-OS:~$ sudo hdparm -t /dev/sda

/dev/sda:
Timing buffered disk reads: 250 MB in 3.01 seconds = 83.15 MB/sec
ixnod@Obfuscated-OS:~$ sudo hdparm -T /dev/sda

/dev/sda:
Timing cached reads: 1560 MB in 2.00 seconds = 779.63 MB/sec

ixnod@Obfuscated-OS:~$ sudo hdparm --direct -tT /dev/sda

/dev/sda:
Timing O_DIRECT cached reads: 256 MB in 2.01 seconds = 127.20 MB/sec
Timing O_DIRECT disk reads: 250 MB in 3.00 seconds = 83.22 MB/sec


Western digital 320G 7200 rpm laptop hard drive.
2Gig ram

Re: Hard drive speed

PostPosted: Sat Oct 18, 2008 6:31 pm
by pch.shot
This is from a 10 year old Maxtor pata 6 gig(PIII) running Hardy Heron(mostly full). I thought you guys might like a good laugh!!
/dev/sda1:
Timing cached reads: 240 MB in 2.01 seconds = 119.30 MB/sec

This is a 3 year old WD 80 gig pata on the same machine:
/dev/sdb1:
Timing cached reads: 254 MB in 2.01 seconds = 126.30 MB/sec

I would try a sata drive but it wasn't invented when this relic was built!!
/dev/sda1:
Maxtor-Timing buffered disk reads: 38 MB in 3.09 seconds = 12.30 MB/sec
Western Digital-Timing buffered disk reads: 76 MB in 3.02 seconds = 25.15 MB/sec
/dev/sda1:Maxtor
Timing O_DIRECT cached reads: 34 MB in 2.08 seconds = 16.37 MB/sec
Timing O_DIRECT disk reads: 56 MB in 3.09 seconds = 18.13 MB/sec
/dev/sdb1:Western Digital
Timing O_DIRECT cached reads: 54 MB in 2.02 seconds = 26.74 MB/sec
Timing O_DIRECT disk reads: 92 MB in 3.06 seconds = 30.04 MB/sec

That is the best I get no matter how hard I beat the hamster!!
As you can see there isn't much difference because the computer is basically a piece of $#!%.
Conclusions: A fast hard drive means nothing unless it is in a good box!!

Re: Hard drive speed

PostPosted: Sat Oct 18, 2008 7:19 pm
by pch.shot
These are the 3 tests from a raptor 10k 74 gig in a modern box using the live 1.9 64 bit DVD:
/dev/sda1:
Timing cached reads: 2308 MB in 2.00 seconds = 1154.28 MB/sec
ubuntu@ubuntu:~$ sudo hdparm -t /dev/sda1

/dev/sda1:
Timing buffered disk reads: 254 MB in 3.01 seconds = 84.32 MB/sec
ubuntu@ubuntu:~$ sudo hdparm --direct -tT /dev/sda1

/dev/sda1:
Timing O_DIRECT cached reads: 134 MB in 2.01 seconds = 66.64 MB/sec
Timing O_DIRECT disk reads: 226 MB in 3.00 seconds = 75.31 MB/sec
ubuntu@ubuntu:~$

Now a 250 gig Western Digital sata I:
/dev/sda2:
Timing cached reads: 2314 MB in 2.00 seconds = 1156.48 MB/sec
ubuntu@ubuntu:~$ sudo hdparm -t /dev/sda2

/dev/sda2:
Timing buffered disk reads: 232 MB in 3.03 seconds = 76.68 MB/sec
ubuntu@ubuntu:~$ sudo hdparm --direct -tT /dev/sda2

/dev/sda2:
Timing O_DIRECT cached reads: 134 MB in 2.01 seconds = 66.64 MB/sec
Timing O_DIRECT disk reads: 208 MB in 3.01 seconds = 69.13 MB/sec
ubuntu@ubuntu:~$
Conclusions: I paid 200 bucks for the raptor, 80 for the 250 gig. So save your money until you can get one of these: http://www.fusionio.com/

Re: Hard drive speed

PostPosted: Mon Jul 25, 2011 11:09 pm
by Goliath
New toy see sig:
Code: Select all
john@goliath:~$ sudo hdparm -Tt /dev/sda1

/dev/sda1:
 Timing cached reads:   7338 MB in  2.00 seconds = 3670.11 MB/sec
 Timing buffered disk reads: 100 MB in  0.28 seconds = 353.55 MB/sec
john@goliath:~$

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