Date: Tue, 9 Feb 1999 19:56:26 +1100 From: Bruce Evans <bde@zeta.org.au> To: dwmalone@maths.tcd.ie, freebsd-scsi@FreeBSD.ORG Subject: Re: Long vmcore dumps. Message-ID: <199902090856.TAA16269@godzilla.zeta.org.au>
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>Sorry - confused about the units for delay - that patch doesn't >help in the least! Does anyone know what is slowing it? The ide >dump code seems to go much faster even on quite old disks.... The IDE dump code normally writes 127.5K at a time. The SCSI dump code normally writes PAGE_SIZE (4K on i386's) at a time. Some drives are challenged by small synchronous i/o's. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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