Date: Mon, 24 Jul 2000 11:38:58 -0600 From: Charles Randall <crandall@matchlogic.com> To: freebsd-hackers@freebsd.org Subject: RE: Funky scheduler stuff under heavy I/O. Message-ID: <5FE9B713CCCDD311A03400508B8B301301C7846C@bdr-xcln.is.matchlogic.com>
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Could it be a boundary condition when the PCI bus gets saturated? Charles -----Original Message----- From: Andreas Dobloug [mailto:andreasd@ifi.uio.no] Sent: Monday, July 24, 2000 8:36 AM To: freebsd-hackers@freebsd.org Subject: Re: Funky scheduler stuff under heavy I/O. * Jaye Mathisen | 8 parallel DD's started at the same type creating 2GB cycbuffs (as fast as | & can put them in the background). (dd if=/dev/zero bs=1m count=2000 | of=blahblah) | | Any brilliant ideas? I've also experienced this on my scsi-drives (dual P2-350, adaptec2940u2w controller). When doing extensive writes, this always happens. The scan-rate (reported by vmstat) goes sky high, and the system becomes unresponsive. -- Andreas Dobloug : email: andreasd@ifi.uio.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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