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- Newsgroups: comp.unix.bsd
- Path: sparky!uunet!gumby!wupost!dsuvax.dsu.edu!ghelmer
- From: ghelmer@dsuvax.dsu.edu (Guy Helmer)
- Subject: ESDI disk performance under 386BSD
- Message-ID: <1992Aug14.170148.22228@dsuvax.dsu.edu>
- Organization: Dakota State University
- Date: Fri, 14 Aug 1992 17:01:48 GMT
- Lines: 17
-
- Having been running 386bsd 0.1 on a 25Mhz 386 w/ WD1007V-SE2
- controller connected to a Wren VI (330Mb) disk and 16Mb of memory,
- I've noticed that the system seems seriously disk-bound. Any work on
- the disk drive seems to take forever - mkdir takes a few seconds to
- execute; extracting a tar file brings the system to a crawl. Not
- knowing much about BSD internals yet, I am wondering if there is a
- fairly simple answer to the obvious question of how to improve the
- disk's performance. The only thing that comes to mind is the
- possibility that the disk driver is too slow and doesn't keep up with
- the disk's interleave, requiring one whole revolution of the disk for
- each sector read.
-
- Any thoughts on things I could tune or code I could rewrite :-) ?
-
- --
- Guy Helmer, Dakota State University Computing Services - ghelmer@dsuvax.dsu.edu
- White congressmen can't jump, but they sure can bounce.
-