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Date:      Wed, 16 Aug 1995 13:44:36 +0200
From:      Wolfram Schneider <wosch@cs.tu-berlin.de>
To:        Garrett Wollman <wollman@halloran-eldar.lcs.mit.edu>
Cc:        FreeBSD-bugs@freebsd.org
Subject:   bin/683: cron(8)
Message-ID:  <199508161144.NAA20069@caramba.cs.tu-berlin.de>
In-Reply-To: <9508151924.AA13140@halloran-eldar.lcs.mit.edu>
References:  <199508131617.SAA13412@localhost> <9508141442.AA11143@halloran-eldar.lcs.mit.edu> <199508141459.QAA11761@caramba.cs.tu-berlin.de> <9508141532.AA11236@halloran-eldar.lcs.mit.edu> <199508141557.RAA14439@caramba.cs.tu-berlin.de> <9508141644.AA11411@halloran-eldar.lcs.mit.edu> <199508141725.TAA18350@caramba.cs.tu-berlin.de> <9508141755.AA11596@halloran-eldar.lcs.mit.edu> <199508151046.MAA00781@localhost> <9508151924.AA13140@halloran-eldar.lcs.mit.edu>

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Garrett Wollman writes:
><<On Tue, 15 Aug 1995 12:46:42 +0200, Wolfram Schneider <wosch@cs.tu-berlin.de> said:
>
>> $ sa |egrep ' (cron|sh|atrun).?$'
>>    59831  4528877.13re       89.06cp        1avio     5586k   sh
>
>> 15,000 cron's, mostly for atrun. Every 6th sh(1) was calling from cron
>> (other 72,000 sh(1) mainly from make(1)).
>
>You fail to explain why this matters.

Do you read the mail from Bruce? /bin/sh is slow. 89.06cp is system +
user time in minutes. 

Consider 0.33 sec user+system time on a poor 386 without FPU, 15,000
/bin/sh's use 83 min user+system time!

Wolfram



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