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SubjectRe: direct (unbufferd) disk access

On Sat, 26 Jun 1999 00:06:53 -0400, Douglas Gilbert
<> said:

> You may like to look at:

> [and follow the "timings" link]

> to get a feeling for what direct versus indirect IO is
> costing you. Reasonably standard i386 hardware can get
> you 20 to 30 MB/sec throughput using "indirect IO".

Given that we have clocked reasonably standard i386 hardware with fast
disks at 50 or 60 MB/sec through the filesystem, I doubt that the
indirect IO is the bottleneck in those cases.


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