http://wiki.christophchamp.com/index.php?action=history&feed=atom&title=Hdparm 2026-04-15T05:19:03Z Revision history for this page on the wiki MediaWiki 1.26.2 http://wiki.christophchamp.com/index.php?title=Hdparm&diff=3894&oldid=prev 2007-05-04T03:38:16Z

<p></p> <p><b>New page</b></p><div>'''hdparm''' provides a [[:Category:Linux Command Line Tools|command line interface]] to various hard disk ioctls supported by the stock [[Linux]] ATA/IDE device driver subsystem. Some options may work correctly only with the latest [[kernel]]s. For best results, compile hdparm with the include files from the latest kernel source code.<br /> <br /> ==Usage==<br /> *Syntax/synopsis:<br /> hdparm [ flags ] [device] ..<br /> <br /> ===Example usage===<br /> % hdparm -t -T /dev/hdc # HDD benchmark<br /> /dev/hdc:<br /> Timing buffer-cache reads: 1652 MB in 2.00 seconds = 836.00 MB/sec<br /> Timing buffered disk reads: 198 MB in 3.01 seconds = 36.08 MB/sec<br /> <br /> ===Options===<br /> When no flags are given, &lt;code&gt;-acdgkmnru&lt;/code&gt; is assumed. See man page for details.<br /> <br /> ==Seeker==<br /> ''Note: The following is from [http://www.linuxinsight.com/how_fast_is_your_disk.html How fast is your disk?].''<br /> <br /> % gcc -O2 seeker.c -o seeker<br /> or if you're lazy or don't have compiler at hand, you can also download the binary below. Then run it like this:<br /> <br /> % seeker /dev/hda<br /> <br /> Just like hdparm, it needs superuser privileges to access the raw disk device. The output looks like this:<br /> Seeker v2.0, 2007-01-15, http://www.linuxinsight.com/how_fast_is_your_disk.html<br /> Benchmarking /dev/sda [17501MB], wait 30 seconds..............................<br /> Results: 167 seeks/second, 5.95 ms random access time<br /> <br /> ==See also==<br /> *[http://www.t13.org/ Technical Committee T13 ATA Attachment]<br /> *[http://www.serialata.org/ Serial ATA International Organization]<br /> <br /> [[Category:Linux Command Line Tools]]</div>

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