gest: perl script to estimate emerge times

lanalyst · n00b Joined: 22 Oct 2002 Posts: 13

I've hacked a perl script to estimate build times based on previous averages taken from emerge.log. To use it, pipe the output of the emerge --pretend command to it and it will tag duration for each package with a total to the output.

Script is here (updated URL 12/05). Requires emerge Time-Duration and chmod +x gest.

Examples:
emerge -up world | gest
emerge -ep | gest
emerge -p xfree | gest

Sample output:
bash-2.05b# emerge -p kdebase | /root/gest

These are the packages that I would merge, in order:

Calculating dependencies ...done!
[ebuild U ] kde-base/arts-1.1.2-r1 [1.1.1] Estimate: 27m12s
[ebuild U ] app-doc/kdelibs-apidocs-3.1.2 [3.1.1a] Estimate: 19m46s
[ebuild U ] kde-base/kdelibs-3.1.2 [3.1.1a] Estimate: 4h11m
[ebuild U ] kde-base/kdebase-3.1.2 [3.1.1a] Estimate: 5h36m

Total estimated update time: 10 hours and 34 minutes

Enjoy

Dave

pYrania · Posted: Sat Jul 26, 2003 7:03 pm Post subject:

Hm. I don't think my cluster can do it _that_ fast :wink:

lanalyst · n00b Joined: 22 Oct 2002 Posts: 13

kde-base/kde really isn't much of an ebuild.. it has a few deps:

pYrania · Posted: Sat Jul 26, 2003 8:30 pm Post subject:

oh right, forgot it's actually just a meta package :oops:

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Pythonhead · Posted: Sat Jul 26, 2003 10:06 pm Post subject:

Very nifty, its working great for me. I added gest to this list of portage utilities that aren't in portage:

https://forums.gentoo.org/viewtopic.php?p=416282#416282

Here's a feature request for people who use ccache.

1) If a package has been emerged more than once, leave out the first compile time in your list of averages because succeeding packages compile in a fraction of the amount of time.

2)If a package has only been emerged once, note that in the output, so they'll be aware the next actual emerge time will be quite lower.

EDIT: Or much easier, just show the number of times its been emerged and ccache users can figure it out themselves.

tomaw · Guru Joined: 26 Mar 2003 Posts: 429 Location: UK

Very nice, my suggestion though, somehow not lose the colours of the output - I find them quite useful.
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Tom Wesley

lanalyst · n00b Joined: 22 Oct 2002 Posts: 13

I've posted a new version (at the original link).

I've cleaned the code up a bit and have added a few options (no color.. sorry)...

Usage:
emerge -up world | gest
emerge -pe | gest -V
qpkg -nc -f /sbin/ifconfig | gest
gest -LV
gest packnames.txt

Options:
-l : just a dump sucessful emerges in the emerge.log - date elapsed package
-V : Verbose option (does not apply to -l) lists individual packages
-L : Sorts groups/package with [count] and estimate (average)

<STDIN> : Either output from emerge --pretend or qpkg -nc
**NOTE: a flat list of packages cannot contain version-release numbers

---------------

Output changes: the total number of emerges added before the time estimate

Sample output:

syscrash · Guru Joined: 14 Apr 2003 Posts: 541

Doesn't seem to be working with k3b for me. It works if I use something like gnome-base/libghttp, but it doesn't give any estimate for kde-libs or anything like that.

insanecanuck · Posted: Tue Aug 19, 2003 10:22 pm Post subject:

Works nice, thanks

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lanalyst · n00b Joined: 22 Oct 2002 Posts: 13

rizzo · Posted: Wed Aug 20, 2003 6:39 pm Post subject:

splat does something like this already: