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- Path: sparky!uunet!psinntp!ncrlnk!ncrsoph!tdonnell
- From: tdonnell@ncrsoph.Sophia.NCR.COM (Tom Donnelly)
- Newsgroups: comp.databases.oracle
- Subject: Re: Monday Morning Blues?
- Message-ID: <4231@ncrsoph.Sophia.NCR.COM>
- Date: 29 Dec 92 10:34:47 GMT
- References: <1992Dec28.181625.9736@netcom.com>
- Reply-To: tdonnell@ncrsoph.Sophia.NCR.COM (Tom Donnelly)
- Organization: NCR European Development Center
- Lines: 37
-
- In article <1992Dec28.181625.9736@netcom.com> sjs@netcom.com (Stephen Schow) writes:
- >We reboot our UNIX Oracle Server every weekend. Every monday morning, all
- >of our Oracle users complain about unusually slow performance. Anyone have
- >any clues why? After a few hours it usually speeds up again, but the first
- >few hours of monday are slower than molasses(sp).
-
- I've seen this happen a few times, and in some other instances as well. I
- think it may actually have something to do with disk / memory caching and the
- buffer caching of Oracle and Unix. Until a system reaches a certain load, it
- seems to be a little sluggish. After it gets ( I think ) its cache and buffer
- populated, it appears to gain in performance.
-
- I have seen this happen on large systems where only 1 - 3 users log in. After
- more users log on, the system performance actually increases.
-
- Just my $.02
-
- >
- >
- >--
- >------------------------------------------------------------------
- >Steve Schow | But you don't have to use the claw, if you
- >sjs@netcom.com | pick the pear with the big paw paw......
- >(415) 354-4908 | Have I given you a clue......?
- > | - Baloo the Bear
- >------------------------------------------------------------------
-
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