Re: PS/2 mouse latency was Re: [linux-audio-dev] Re: [DATAPOINT] kernels and latencies

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Subject: Re: PS/2 mouse latency was Re: [linux-audio-dev] Re: [DATAPOINT] kernels and latencies
From: Alan Cox (alan_AT_lxorguk.ukuu.org.uk)
Date: Tue Jul 04 2000 - 21:14:43 EEST

> > > > Note: I have seen X causing 50 ms latencies...
> > > > [aux_write_dev+26/28]
> > >
> > > awwwww.. Yuk. What a piggy little function!
> >
> > Yuck! It's even disabling interrupts for that long.
>
> Does anybody know if it just stupid locking or if the hardware
> requires interrupts off ?

The PS/2 hardware requires delays, but it does not require that interrupts
are off for the entire period to my knowledge.

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