[ltp] R52 - pdflush on large disk operations

[Onno Benschop]

Brad Langhorst wrote:

>On Fri, 2005-09-09 at 01:38 +0930, Onno Benschop wrote:
>
> =20
>
>>The behaviour I saw was that cron was forking all over the place, the=20
>>machine getting slower and slower. At one stage I had 86 cron processes=
=20
>>running which couldn't be killed. (You should know that I have two cron=
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>>jobs that run each minute to log traffic and current active window -=20
>>part of my client billing process.)
>>   =20
>>
>
>
>i don't know why a split command would have an effect on cron... but i
>suspect that the problem lies in the programs you are running in cron -
>not cron itself.
>
>try running /bin/true in place of your scripts to see if you still get
>the strange behaviour.
>
>IMHO any system that requires cron jobs to be triggered every minute is
>inherently broken and should be replaced with a daemon.
>
> =20
>
No as I said further down, it's the disk I/O that is blocking, cron is=20
just a symptom.


--=20
Onno Benschop

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