From: Karthik Sarangan <karthiks@cdac.in>
To: Linux SCSI Mailing List <linux-scsi@vger.kernel.org>
Subject: SCSI disk speed inconsistency
Date: Mon, 03 Oct 2005 14:36:51 +0530 [thread overview]
Message-ID: <4340F4AB.3070107@cdac.in> (raw)
I get a read speed of 69MBps from my SCSI disk and a write speed of
49MBps from the same.
An IOMeter benchmark on the net says that 68MBps is the sustained speed
for a write.
Could someone tell me how to increase my IO speed?
I have a Linux Kernel 2.6 in a RedHat Enterprise Linux WS 4 and I used
the foll.
Read : sg_dd if=/dev/sdb of=/dev/null bs=262144 count=1024 dio=1
Write: sg_dd if=/dev/zero of=/dev/sdb bs=262144 count=1024 dio=1
next reply other threads:[~2005-10-03 9:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-03 9:06 Karthik Sarangan [this message]
2005-10-04 22:00 ` SCSI disk speed inconsistency Douglas Gilbert
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