Am Donnerstag, den 15.05.2008, 17:14 +0200 schrieb Alberto: > package: readahead > version: 1.20060421.1016-3 > severity: wishlist > > > Since version 1:0.20050517.0220-0ubuntu4, readahead runs in the > foreground, not the background, in order to avoid i/o concurrency > (which is slow). > A better approach: run with the ionice wrapper (not available at > time of 1:0.20050517.0220-0ubuntu4) and in the background. This > can make use of the many delays that exists at boot time. In the next upload of readahead-list, I may change this, provided I receive further information.
Therefore, please follow this procedure:
1. Run 'touch /etc/readahead/profile-once' and reboot
2. Install bootchart and renderer
Now, do the following one time for standard readahead and one time for
readahead with ionice:
3. Reboot with option 'init=/sbin/bootchartd'
4. Run bootchart to create an image
5. Send an email with both images attached.
>
> I think this shoud suffice:
> ...
> if /sbin/start-stop-daemon --start --background --quiet \
> --pidfile /var/run/readahead-list.bogus \
> --startas /usr/bin/ionice -- -c 3 /sbin/readahead-list
> -s /etc/readahead/boot; then
> ...
>
>
> Another variant is ionice -n7.
>
>
--
Julian Andres Klode, Fellow of the Free Software Foundation Europe
Debian Maintainer | Developer | Ubuntu Member
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