On Mon, Jun 04, 2007 at 12:37:10PM -0500, Matt Mackall wrote:
> With 2.6.22-rc3-mm1, I've got a long-running video transcoding going
> on. In other windows, I'm compiling, reading email, etc. with no
> noticeable problems.
>
> If I fire up lguest and leave it sitting at a shell prompt for a
> couple moments, when I return to type something at the prompt, it can
> take 2-3 seconds for my input to echo. Once it starts responding,
> typing latency disappears. Suspend the other app and the latency
> disappears.
>
> The system isn't swapping and has basically no I/O load.
Is this on hvc console? The hvc driver was recently modified to back off
it's timing interval when there's no input, the max value is 2 seconds.
See b791072ba3c3b29bab1890963bde52eb944a8451 for the changes in question.
-Olof
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