Erinevus lehekülje "Vahendid kettatestiks" redaktsioonide vahel

Allikas: Kuutõrvaja
(dd)
8. rida: 8. rida:
 
  1000+0 records out
 
  1000+0 records out
 
  1048576000 bytes (1.0 GB) copied, 17.0656 s, 61.4 MB/s
 
  1048576000 bytes (1.0 GB) copied, 17.0656 s, 61.4 MB/s
 +
 +
dd käsku võib peal juurutada ntx nii:
 +
 +
# kirjutamine, algusse ja lõppu
 +
dd bs=1024K count=1024 if=/dev/zero of=/dev/hdc
 +
dd bs=1024K count=1024 if=/dev/zero of=/dev/hdc seek=75000
 +
# lugemine
 +
dd bs=1024K count=1024 if=/dev/hdc of=/dev/null
 +
dd bs=1024K count=1024 if=/dev/hdc of=/dev/null skip=75000
  
 
===<font color=red>Linux</font> hdparm===
 
===<font color=red>Linux</font> hdparm===
33. rida: 42. rida:
 
  Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
 
  Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
 
           100 163734 81.9 280862 22.1 384488 57.6 127538 97.3 2539304 98.2 214041.1 253.4
 
           100 163734 81.9 280862 22.1 384488 57.6 127538 97.3 2539304 98.2 214041.1 253.4
 +
 +
===Lingid===
 +
 +
http://www.iozone.org/

Redaktsioon: 17. september 2009, kell 14:40

dd

Alustuseks kõige lihtsam lugemise ja kirjutuskiiruse testimise utiliit

# dd if=/dev/sda of=/dev/null bs=1024k count=1000

1000+0 records in
1000+0 records out
1048576000 bytes (1.0 GB) copied, 17.0656 s, 61.4 MB/s

dd käsku võib peal juurutada ntx nii:

# kirjutamine, algusse ja lõppu
dd bs=1024K count=1024 if=/dev/zero of=/dev/hdc
dd bs=1024K count=1024 if=/dev/zero of=/dev/hdc seek=75000
# lugemine
dd bs=1024K count=1024 if=/dev/hdc of=/dev/null
dd bs=1024K count=1024 if=/dev/hdc of=/dev/null skip=75000

Linux hdparm

# hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   8688 MB in  2.00 seconds = 4349.14 MB/sec
 Timing buffered disk reads:  174 MB in  3.00 seconds =  57.91 MB/sec

Bonnie

Kirjutus ja lugemistestid

# /usr/local/bin/bonnie
File './Bonnie.81484', size: 104857600
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              -------Sequential Output-------- ---Sequential Input-- --Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
          100 163734 81.9 280862 22.1 384488 57.6 127538 97.3 2539304 98.2 214041.1 253.4

Lingid

http://www.iozone.org/