Re: High bandwidth disk management techniques
Re: High bandwidth disk management techniques
- Subject: Re: High bandwidth disk management techniques
- From: Brad Ford <email@hidden>
- Date: Tue, 3 May 2005 10:27:05 -0700
so with sector size 512 and page size 4096,
As an aside, you don't have to hardcode 4096 into your code. If you
#include <mach/mach.h>, you can ask for reads of size:
vm_page_size
-Brad
it wouldn't be possible to ask for 8 particular, non sequential
sectors and get them in one page without going through any of the
OS disk buffer/de-blocking you mention? for each sector read like
that they'd be another 3584 bytes pulled from the disk which if you
don't use would be wasted?
thanks, ben.
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