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- Xref: sparky comp.os.os2.misc:27422 comp.os.os2.programmer:4229
- Newsgroups: comp.os.os2.misc,comp.os.os2.programmer
- Path: sparky!uunet!gatech!news.ans.net!ans.net!db3l
- From: db3l@ans.net (David Bolen)
- Subject: Re: Request for info about kernel pre-emption and priorities
- Sender: news@ans.net (News Administrator)
- Message-ID: <1992Aug14.221313.47477@ans.net>
- In-Reply-To: eletanjm@nuscc.nus.sg's message of Thu, 13 Aug 1992 15: 59:27 GMT
- Date: Fri, 14 Aug 1992 18:14:25 GMT
- References: <1992Aug12.163357.34974@ans.net> <1992Aug13.155927.6849@nuscc.nus.sg>
- Organization: Advanced Network & Services, Inc. - Elmsford, NY
- Lines: 20
-
- In article <1992Aug13.155927.6849@nuscc.nus.sg> eletanjm@nuscc.nus.sg (TAN JIN MENG) writes:
-
- >I have measured the average context switch time and the average time
- >for a high priority thread to preempt a low priority thread to be
- >84 usecs and 250 usecs (about - I'm doing this from home so I can't
- >verify again - my memory got holes) on OS/2 2.0 with WPS loaded on a
- >486-33DX AT clone.
-
- That sounds about right (.25ms). The < 1ms claim was for the entire line that
- OS/2 was built to run on, which included 286 machines. When we were testing
- it I think we used a 16MHx 386, and saw somewhere in the neighborhood of .5ms.
-
- --
- -- David
- --
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- \ David Bolen \ Internet: db3l@ans.net /
- | Advanced Network & Services, Inc. \ Phone: (914) 789-5327 |
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