Date: Thu, 3 Oct 2002 21:50:45 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: Mark Santcroos <marks@ripe.net> Cc: Ian Dowse <iedowse@maths.tcd.ie>, Garance A Drosihn <drosih@rpi.edu>, <freebsd-hackers@FreeBSD.ORG>, <emulation@FreeBSD.ORG> Subject: Re: vmware reads disk on non-sector boundary Message-ID: <20021003214616.B3519-100000@gamplex.bde.org> In-Reply-To: <20021003081152.GB584@laptop.6bone.nl>
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On Thu, 3 Oct 2002, Mark Santcroos wrote: > I have an almost-ready patch that implements linux_read() syscall. This > will check if we are reading from a raw disk and in that case it will > enlarge the read() to the next sector boundary. I have it working in the > kernel but I have problems returning the right read buffer to userland. Unbreaking block devices would be a better solution. Without buffering, reads of raw disks using an unbuffered linux_read() might be <sector size> times slower than they should be. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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