Re: JES2 Performance Problem

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#1130

From: Michael C. Cambria
Date: Tue, 12 Jan 1993 17:41

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In article <ll3v99INNl3@exodus.Eng.Sun.COM>, kek@bullterrier.Eng.Sun.COM (Kevin Kalajan - SunConnect Product Marketing) writes...
>I could not post to bit.listserv.jes2-l.
> 
>We have done exhaustive testing in trying to pinpoint why JES2
>is waiting anywhere from 1-4 seconds between sending blocks
>to a Sun emulating a 3770 SNA/RJE station. This includes Sniffer
>and GTF traces that show the link idle for the above time while
>we wait for JES2 to send the next block.
> 
> 
>What can we do to "tune" JES2?  We have gone through tuning the NCP and cannot
>see any better results.  Is there some buffer pool tuning that can be done to
>"pre-read" disk spool data in JES2 so that spool data can be sent from the 
>buffer pool instead of waiting to read the disk? Is there internal throttle that
>JES2 is using that can be modified?
> 
>Any help will be appreciated.
> 

Have you already ruled out outbound session pacing?

/Mike

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Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!decuac!pa.dec.com!engage.pko.dec.com!nntpd.lkg.dec.com!smaug.enet.dec.com!cambria
From: cambria@smaug.enet.dec.com (Michael C. Cambria)
Subject: Re: JES2 Performance Problem
Message-ID: <1993Jan12.184046.22284@nntpd.lkg.dec.com>
Sender: usenet@nntpd.lkg.dec.com (USENET News System)
Organization: Digital Equipment Corporation
References:   <ll3v99INNl3@exodus.Eng.Sun.COM>
Date: Tue, 12 Jan 1993 17:41:36 GMT
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