When I execute apt-get for some updates, it took very long period of time to finish. Lately, I realized that cause is from my HDD setting. Therefore I discover a command for hard disk parameter configuration.
To test the speed of your hard disk :
/sbin/hdparm -tT /dev/hda
where hda is the 1st IDE HDD, hdb is the 2nd, etc.
The sample output:
Timing cached reads: 968 MB in 2.00 seconds = 483.35 MB/sec Timing buffered disk reads: 168 MB in 3.02 seconds = 55.67 MB/sec
Furthermore, you can use this command to check for more details:
/sbin/hdparm -i -v /dev/hda
To configure the HDD parameter:
/sbin/hdparm -cx -dx -ux -mxx -Xxx /dev/hda
where -c is the (E)IDE 32-bit I/O support (x can be 0 to disable, 1/2/3 is to enable 32-bit tranfer), -d indicates using dma (x : 1 to enable, 0 to disable), -u stand for interrupt-unmask flag (x :1 to enable, 0 to disable), -m is for multisector I/O (xx can be 2,4, 8 and 16 or any maximum number support by HDD, can check using -i) and finally -X is to set the transfer mode of HDD.
For example :
/sbin/hdparm -c2 -d1 -u1 -m16 -X70 /dev/hda
For more detail on this command, just use the man page:
Unfortunately, to fully utilize this command needs some more details of HDD, even manual is not enough. Therefore,