** Changed in: livecd-rootfs (Ubuntu)
Assignee: (unassigned) = liu bo (1300733887-9)
** Changed in: livecd-rootfs (Ubuntu)
Status: Incomplete = Fix Committed
** Changed in: livecd-rootfs (Ubuntu)
Status: Fix Committed = Opinion
** Changed in: baltix
Status: New = Fix
Launchpad is not a place for playing around...
** Changed in: baltix
Assignee: liu bo (1300733887-9) = (unassigned)
** Changed in: debian-cd (Debian)
Assignee: liu bo (1300733887-9) = (unassigned)
** Changed in: debian-cd (Ubuntu)
Assignee: liu bo (1300733887-9) = (unassigned)
** Also affects: baltix
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/589629
Title:
LiveCD layout optimisation
--
ubuntu-bugs mailing list
Personally I think that six seconds won at livefs boot time (at a boot
time of two minutes) isn't enough of an advantage to sacrifice 180 MB of
installed size.
** Changed in: livecd-rootfs (Ubuntu)
Status: New = Incomplete
--
LiveCD layout optimisation
Personally I don't know how to go about looking for the root cause of
this 180 MB increase, or I would.
On ext3 the new disc did not do this. It must be something related to
ext4. This is all I know.
Thanks for your review, Martin. :)
--
LiveCD layout optimisation
As I just saw and posted about on ubuntu-devel-discuss [1], using the
new squashfs layout file for a CD made Ubuntu's hard-disk install size
180 MB bigger on ext4. I presume it's due to extent allocation breaking
due to the pattern of file copies.
The status of this bug now depends on whether
This sort file makes ISOLINUX bring up the screen with boot options in
less than 2 seconds after first displaying ISOLINUX, by putting every
file read by ISOLINUX in sequence right at the start of the disc.
** Attachment added: sort file for mkisofs (updated)
Now doing tests with the bootchart package, which was added to Maverick
dailies on 2010-06-10. Thanks cjwatson!
The boot time BEFORE the mksquashfs optimisation is 2 minutes 05.33
seconds.
** Attachment added: Bootchart before optimisations
http://launchpadlibrarian.net/50302818/bootchart.png
The boot time AFTER the mksquashfs optimisation is 1 minute 59.09
seconds.
Of note: I had to work around bug 512172 in pybootchartgui to generate
the images. And this is on the Jolteon defined above.
** Attachment added: Bootchart after optimisations
Boot sequence time | Original | Reordered | Verdict
---+++-
Flareon| 2 min 32.9 | 2 min 08.1 | 16.3% impr.
Jolteon| 1 min 43.2 | 1 min 34.1 | 8.9% impr.
Jigglypuff | 1 min 59.5 | 1 min 47.6 | 10.0% impr.
I did preliminary results for this bug with a stopwatch. I'll explain my
methodology in this post and put my results in the next one.
-- Definitions --
Boot sequence time is the time it takes between the ISOLINUX screen
that appears when boot starts, and the Lucid orange-purple background
just
** Attachment added: LiveCD layout, as it would look like on the CD's
recordable side
http://launchpadlibrarian.net/49656420/cdrom-proposed.png
--
LiveCD layout optimisation
https://bugs.launchpad.net/bugs/589629
You received this bug notification because you are a member of Ubuntu
Bugs,
Negative weights in this sort-file put the corresponding files at the
'end' (which will end up at the edge of the CD) of filesystem.squashfs.
** Attachment added: mksquashfs sort file
http://launchpadlibrarian.net/49656561/sortfile-mksquashfs.txt
--
LiveCD layout optimisation
Negative weights in this sort-file put the corresponding files at the
'end' (which will end up at the edge of the CD) of the iso itself.
** Attachment added: mkisofs sort file
http://launchpadlibrarian.net/49656566/sortfile-mkisofs.txt
--
LiveCD layout optimisation
** Also affects: debian-cd (Ubuntu)
Importance: Undecided
Status: New
** Bug watch added: Debian Bug tracker #584528
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584528
** Also affects: debian-cd (Debian) via
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584528
** Changed in: debian-cd (Debian)
Status: Unknown = New
--
LiveCD layout optimisation
https://bugs.launchpad.net/bugs/589629
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
** Branch linked: lp:~louis-simard/livecd-rootfs/layout-opt
--
LiveCD layout optimisation
https://bugs.launchpad.net/bugs/589629
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
** Changed in: debian-cd (Debian)
Importance: Unknown = Undecided
** Changed in: debian-cd (Debian)
Remote watch: Debian Bug tracker #584528 = None
--
LiveCD layout optimisation
https://bugs.launchpad.net/bugs/589629
You received this bug notification because you are a member of Ubuntu
18 matches
Mail list logo
