Re: 2.2.19pre3 and poor reponse to RT-scheduled processes?

From: Gregory Maxwell (greg@linuxpower.cx)
Date: Fri Dec 29 2000 - 16:19:28 EST


On Fri, Dec 29, 2000 at 03:45:23PM -0500, Rafal Boni wrote:
[snip]
> The box in question is running the linux-ha.org heartbeat package,
> which is a RT-scheduled, mlock()'ed process, and as such should
> get as good service as the box is able to mange. Often, under
> high disk (and/or MM) loads, the box becomes unreponsive for a
> period of time from ~ 1 sec to a high of ~ 2.8sec.
[snip]

You are running IDE aren't you?

Enable DMA and/or unmask interupts.

man hdparm

Good luck.
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