Date created: 10/31/12 16:32:01. Last modified: 01/20/13 15:56:00
Host Tuning and Testing
Generic testing methods and ideas;
CPU testing:
dd if=/dev/zero of=/dev/null & (8 to 16 times) pi=$(echo "scale=100000; 4*a(1)" | bc -l) &
Disk testing:
tar cf /dev/zero /path/to/big/disks/as/raid-5 tar cf - /amsdata | dd of=/dev/null
seeker.c - Hard drive random access time tester from http://www.linuxinsight.com/how_fast_is_your_disk.html
Disk options:
RAID options or BBWC: fstab entry: ;rw,noatime,logbufs=8,logbsize=256k,nobarrier
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