lkml.org 
[lkml]   [2007]   [Jun]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC PATCH 0/6] Convert all tasklets to workqueues
From
Date
A couple of days ago I said:

> The cafe_ccic (OLPC) camera driver uses a tasklet to move frames out of
> the DMA buffers in the streaming I/O path....
>
> Obviously some testing is called for here. I will make an attempt to do
> that testing

I've done that testing - I have an OLPC B3 unit running V2 of the
tasklet->workqueue patch, and all seems well. 30 FPS to the display and
no dropped frames. The tasklets/0 process is running 3-5% CPU, in case
that's interesting. For whatever reason, I see about 3% *more* idle
time when running just mplayer than I did without the patch.

Consider my minor qualms withdrawn, there doesn't seem to be any trouble
in this area.

Thanks,

jon

Jonathan Corbet / LWN.net / corbet@lwn.net
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-06-26 02:03    [from the cache]
©2003-2011 Jasper Spaans. Advertise on this site