Re: sustained sequential disk IO runs interactivity into the ground

At 10:57 PM 20/06/2005, [EMAIL PROTECTED] wrote: I was doing a dd of dev/zero into a file on a UFS2 filesystem (softupdates disabled) on a clean 5.4-R system. I see the same issue on RELENG_5 with IDE disk. However, on FreeBSD nfs.sentex.ca 6.0-CURRENT FreeBSD 6.0-CURRENT #1: Fri Jun 17 No suc

Re: sustained sequential disk IO runs interactivity into the ground

Have you tried the vfs patch posted a few weeks ago? Steve / K - Original Message - From: <[EMAIL PROTECTED]> I was doing a dd of dev/zero into a file on a UFS2 filesystem (softupdates disabled) on a clean 5.4-R system. an exec of top took approximately 30 seconds to complete and

sustained sequential disk IO runs interactivity into the ground

I was doing a dd of dev/zero into a file on a UFS2 filesystem (softupdates disabled) on a clean 5.4-R system. an exec of top took approximately 30 seconds to complete and then revealed sys: 13% and idle: 87% quit, repeat five times, same delay, same numbers each time. FreeBSD 4.11 managed this w