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From: afc@shibaya.lonestar.org (Augustine Cano)
Newsgroups: comp.sys.att,unix-pc.general
Subject: Re: My 3B1 FIXDISK 2.0 experience (so far, LONG)
Message-ID: <1990Oct12.162212.250@shibaya.lonestar.org>
Date: 12 Oct 90 16:22:12 GMT
References: <261@ramecs.UUCP> <1990Oct08.105551.28522@uhura.neoucom.EDU> <124@sialis.mn.org> <1990Oct10.111528.13746@uhura.neoucom.EDU>
Reply-To: afc@shibaya.UUCP (Augustine Cano)
Organization: Multidisciplinary Designs Unlimited
Lines: 36

In article <1990Oct10.111528.13746@uhura.neoucom.EDU> wtm@uhura.neoucom.EDU (Bill Mayhew) writes:
>One thing I should add is that my system has a voice power board in
>the middle slot of the backplane.  I've noticed that if I run the
>voice manager daemon that my average uucp transfers drop from about 
>1400 char/sec to around 1200 char/sec (3.51).  The behavior is quite
>repeatable by running setvm on, transferring a file, setvm off,
>transferring a file then compare the results.  It is a bit puzzling,
>as the voice manager should be spending most of its time sleeping,
>and only needs to wake up in reponse to ring or off-hook event. The
>ps command corroborates this, suggesting that voicemgr is not
>executing a polling loop as indicated by the execution time.

I remember reading in the voice power docs a categorical warning *NOT*
to run the voice manager daemon unless you intend to run the answering
machine.  It seems that they knew about the performance problems.

>The decrease in uucp performance I noticed the FIXDISK kernel was
>about the same amount.  If I get a chance, I'll switch back to the
>3.51m kernel without the voice power board to see if that makes a
>difference.

I'd bet the culprit is setvm.

>[...]
>
>==Bill==
>-- 
>Bill Mayhew      NEOUCOM Computer Services Department
>Rootstown, OH  44272-9995  USA    phone: 216-325-2511
>wtm@uhura.neoucom.edu   ....!uunet!aablue!neoucom!wtm
>via internet: (140.220.001.001)


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