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Re: /proc/sys/vm/bdflush

On Thursday 21 November 2002 11:35, Ralf Hildebrandt wrote:

Hi Ralf,

> > you are using 2.4.19 don't you?
> Not really. Yes, I shall provide more details:
> Our mailbox server has this:

> Linux postamt1.charite.de 2.4.19-ac4 #1 Mon Aug 19 14:35:20 CEST 2002 i686
There is your problem. 2.4.19 and even latest 2.4.20 has those kind of 
behaviour in some situations. I had the same experience. Read the thread 
between Andrea and me some days ago.

Someone wrote you can use:

elvtune -r 2048 -w 131072 /dev/$yourdevice
echo "90 500 0 0 600000 600000 95 20 0" >/proc/sys/vm/bdflush

and with those settings the "freeze" behaviour is gone but I cannot confirm 
that. 2.4.19|2.4.20 has those problems too even with those settings, but not 
as worst as without it.

Kind regards
        Marc-Christian Petersen


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