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Raniz
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Joined: 13 Sep 2003
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Location: Lund, Sweden
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 Posted: Mon Jun 28, 2004 7:01 pm Post subject: Faster boot |
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My HTPC takes waaay too long to boot. As nothing changes everytime it starts up, is there anyway I can make it start faster?
It takes roughly 2 minutes now, I'd like to cut that down to about one fourth of that if it's possible.
I could use some tricks like starting freevo after, say network, to make things seem a bit faster. It doesn't matter if samba, nfs and so on is started after X, does it?
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kamagurka
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| Posted: Mon Jun 28, 2004 7:23 pm Post subject: Re: Faster boot |
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| Raniz wrote: | My HTPC takes waaay too long to boot. As nothing changes everytime it starts up, is there anyway I can make it start faster?
It takes roughly 2 minutes now, I'd like to cut that down to about one fourth of that if it's possible.
I could use some tricks like starting freevo after, say network, to make things seem a bit faster. It doesn't matter if samba, nfs and so on is started after X, does it? |
how about the filesystem checks on mount? my system runs journal checks on all my partitions on boot; this takes pretty long, but as i rarely reboot, i hardly care about that. (FYI, the dump/pass bit in fstab tells you this).
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Raniz
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| Posted: Mon Jun 28, 2004 7:27 pm Post subject: |
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How do I turn it off then?
edit:
found it in the manpage...
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MagnusBerg
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Location: Stockholm, Sweden
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| Posted: Mon Jun 28, 2004 7:33 pm Post subject: |
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In the fstab. Set the last number in the row to zero.
from man fstab:
If the sixth field is not present or zero, a value of zero is returned and fsck will assume that the filesystem does not need to be checked. |
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Raniz
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| Posted: Mon Jun 28, 2004 7:39 pm Post subject: |
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As I stated in my post (edit) I found it in the manpage 
But thx anyway...
Though I doubt this will lower my startup-time as much as I want it to...
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Monkeywrench
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Joined: 22 Jun 2004
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Location: Florida
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| Posted: Mon Jun 28, 2004 8:44 pm Post subject: |
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In /etc/conf.d/rc you can set this:
| Code: | # Set to "yes" if you want the rc system to try and start services
# in parallel for slight speed improvement.
RC_PARALLEL_STARTUP="yes" |
and this:
| Code: | # Set to "yes" if you want to save /dev to a tarball on shutdown
# and restore it on startup. This is useful if you have a lot of
# custom device nodes that udev do not handle/know about.
# (ONLY used by UDEV enabled systems!)
RC_DEVICE_TARBALL="no" |
Also, in /etc/init.d/checkfs, I commented out all the stuff related to usb support:
| Code: | depend() {
need checkfs
}
start() {
# Mount local filesystems in /etc/fstab.
ebegin "Mounting local filesystems"
mount -at nocoda,nonfs,noproc,noncpfs,nosmbfs,noshm >/dev/null
eend $? "Some local filesystem failed to mount"
# # Make sure we insert usbcore if its a module
# if [ -f /proc/modules ]
# then
# # >/dev/null to hide errors from non-USB users
# modprobe usbcore &>/dev/null
# fi
#
# # Check what USB fs the kernel support. Currently
# # 2.5+ kernels, and later 2.4 kernels have 'usbfs',
# # while older kernels have 'usbdevfs'.
# local usbfs="$(grep -Fow usbfs /proc/filesystems ||
# grep -Fow usbdevfs /proc/filesystems)"
#
# if [ -n "${usbfs}" ] && \
# [ -e /proc/bus/usb -a ! -e /proc/bus/usb/devices ]
# then
# ebegin "Mounting USB device filesystem (${usbfs})"
## # Fetch usb gid from /etc/group; fixes bug 35860
## usbgid=$(awk -F: '/^usb:/{print $3; exit}' /etc/group)
## mount -t ${usbfs} ${usbgid:+-o devmode=0664,devgid=$usbgid} \
# mount -t ${usbfs} none /proc/bus/usb &>/dev/null
# eend $? "Failed to mount USB device filesystem"
# fi
# Swap on loopback devices, and other weirdnesses
ebegin "Activating (possibly) more swap"
/sbin/swapon -a &>/dev/null
eend 0
}
# vim:ts=4 |
These are all really small speed improvements though. 
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El_Presidente_Pufferfish
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| Posted: Mon Jun 28, 2004 9:40 pm Post subject: |
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| Check the modules script, I think its safe to comment out the modules_update call or something, so long as you do it after new kernels |
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Raniz
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Location: Lund, Sweden
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| Posted: Tue Jun 29, 2004 3:33 pm Post subject: |
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Seems like I've done almost all tweaks you guys come up with (I've found some of them in other threads on the forum...)
Haven't anyone got any radical suggestions?
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El_Presidente_Pufferfish
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| Posted: Tue Jun 29, 2004 4:58 pm Post subject: |
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start removing things from runlevels and see what breaks  |
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Raniz
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Monkeywrench
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| Posted: Wed Jun 30, 2004 5:55 am Post subject: |
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| El_Presidente_Pufferfish wrote: | | start removing things from runlevels and see what breaks |
I absolutely loved doing that with Slackware when I had it.... haven't played with it much in gentoo, however. 
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gnuageux
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| Posted: Wed Jun 30, 2004 11:44 am Post subject: |
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You can remove unneeded startup services from /etc/runlevels/default by using rc-update. (much like other distros chk-config)
The syntax is rc-update del cupsd (or whatever demon) runlevel (default in most cases) |
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teutzz
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| Posted: Sun Jul 11, 2004 8:50 pm Post subject: |
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do what windows does: start servises after logging into X http://forums.gentoo.org/viewtopic.php?t=131142&start=25
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Last edited by teutzz on Sun Jul 11, 2004 9:07 pm; edited 1 time in total |
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teutzz
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| Posted: Sun Jul 11, 2004 9:06 pm Post subject: |
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also use reiser4, a love kernel, and gcc 3.4.1 with -fvisibility-inlines-hidden, and maybe just maybe give a try to prelink
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DiskBreaker
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Joined: 07 Oct 2003
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| Posted: Fri Jul 23, 2004 1:15 pm Post subject: |
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| Raniz wrote: | | Haven't anyone got any radical suggestions? |
One thing you could try is merge all your relevant startup scripts into one big rc file. Since all the different scripts start in their own bash shell and then start sourcing different configuration files a lot of unnecessary time is wasted.
This of course only works if you have a very static startup routine, but most people do. You will have to fix a lot of things and hava a good grasp of what is going on in order to do so. And you will lose all the advantages of the well-designed gentoo rc system.
I did this a few years ago on an old RedHat system and gained some 5 seconds of bootup time. I don't think this is worth doing on today's fast machines though... But since you were looking for more radical suggestions 
Another thing to consider is also how much time gets wasted by your BIOS probing your hardware while linux will do the same thing again when it boots. To remedy this, you could try to flush your BIOS and run LinuxBIOS, a very minimalistic BIOS that just unpacks and loads your kernel image and lets the kernel take over. Just check if your motherboard is supported yet, many already are: http://www.linuxbios.org/status/index.html.
Is this radical enough for you? |
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Raniz
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Joined: 13 Sep 2003
Posts: 961
Location: Lund, Sweden
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| Posted: Sun Jul 25, 2004 5:18 pm Post subject: |
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| DiskBreaker wrote: | Another thing to consider is also how much time gets wasted by your BIOS probing your hardware while linux will do the same thing again when it boots. To remedy this, you could try to flush your BIOS and run LinuxBIOS, a very minimalistic BIOS that just unpacks and loads your kernel image and lets the kernel take over. Just check if your motherboard is supported yet, many already are: http://www.linuxbios.org/status/index.html.
Is this radical enough for you? |
That truly is radical
Though I doubt it'll make any good, my biosscreen flashes by in an instant and then grub takes over. So I don't think it'll make any noticeable difference :/
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Raniz
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Location: Lund, Sweden
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| Posted: Sun Jul 25, 2004 5:18 pm Post subject: |
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| DiskBreaker wrote: | Another thing to consider is also how much time gets wasted by your BIOS probing your hardware while linux will do the same thing again when it boots. To remedy this, you could try to flush your BIOS and run LinuxBIOS, a very minimalistic BIOS that just unpacks and loads your kernel image and lets the kernel take over. Just check if your motherboard is supported yet, many already are: http://www.linuxbios.org/status/index.html.
Is this radical enough for you? |
That truly is radical
Though I doubt it'll make any good, my biosscreen flashes by in an instant and then grub takes over. So I don't think it'll make any noticeable difference :/
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blaster999
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| Posted: Mon Jul 26, 2004 12:49 pm Post subject: |
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Inspect your scripts. For example, I have pppoe connection, so I changed the line
| Quote: |
start-stop-daemon --start --quiet --exec /usr/sbin/adsl-start |
to
| Quote: | | start-stop-daemon --start --quiet --exec /usr/sbin/adsl-start >/dev/null & |
And I don't have to wait some 6 seconds while the link is being established. I edited many scripts and now my system taked about 1 minute to boot (I am using KDE, so 1 minute is a good result).
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sapphirecat
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Posts: 376
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| Posted: Mon Jul 26, 2004 1:40 pm Post subject: |
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| blaster999 wrote: | Inspect your scripts. For example, I have pppoe connection, so I changed the line
| Quote: | | start-stop-daemon --start --quiet --exec /usr/sbin/adsl-start |
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A while ago, that line used to read:
| Quote: | | start-stop-daemon --start --quiet --background --exec /usr/sbin/adsl-start |
I've never quite understood why it was changed (nothing appears to depend on pppoe, seeing as how it gets started approximately last in the boot sequence), so I've kept it that way. No problems here, but YMMV.
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dilandau
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Posts: 485
Location: germany
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| Posted: Tue Dec 07, 2004 10:20 am Post subject: |
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just to note: the parallel execution at boot time messes up my system and results in numerous unreproduceable errors. the --background option didnt do anything and i used an & char appended to the adsl-start command in the local.start file instead. that did it.
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castorilo
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Joined: 25 Dec 2002
Posts: 157
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| Posted: Tue Dec 07, 2004 8:38 pm Post subject: |
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check out this thread and search for my posts in there.
I have written several patches for improving boot speed. Also check out this bugs I made that contains patches and information.
don't do modules-update if not necesary
Make parallel startup really parallel
start X sooner
And this bug keeps track of the other ones and future ones. Specifically, check out comment #19 where you can clearly see the progress I have made in this area so far. Just to make it clear, you don't have to install bootchart, just emerge librsvg to view the charts I posted there.
radical enough?  |
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