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Disk okuma ve yazma hizlarini test etmek

Diskin yazma hizini test etmek;

[root@test ~]# dd if=/dev/zero of=of.txt bs=1k count=1000000
1000000+0 records in
1000000+0 records out
1024000000 bytes (1.0 GB) copied, 3.08095 seconds, 332 MB/s

Diskin okuma hizini test etmek;

[root@test ~]# hdparm -t /dev/cciss/c0d0

Timing buffered disk reads:  412 MB in  3.01 seconds = 157.06 MB/sec