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SubjectRe: Performance problems with Linux file serving. in recent 2.4 kernels
Date
On Fri, 21 Jul 2000 09:12:07 GMT, J. Robert von Behren <jrvb@cs.berkeley.edu> wrote:

>Since the clients are reading and writing the same 30MB area of the disk
>over and over, clients whose files are in the middle of the disk arm
>sweep will be favored by the elevator scheduling, b/c they can be
>serviced both coming and going. The clients with slightly slower server
>response times (due to the placement of files on disk) will have to wait
>longer before sending a subsequent request. In the mean time, the other
>clients will have been able to issue more reuqests, so by the time the
>slower client gets its next request in, it is likely that it will be at
>the end of the elevator loop, and hence be delayed further...

The LanTest application does set up one test file per client - so there
are multiple 20MB areas.

--
Jens-Uwe Mager <pgp-mailto:62CFDB25>

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