Is it possible to speed up yum.

Patrick O'Callaghan pocallaghan at gmail.com
Thu Jun 19 05:23:13 UTC 2008


On Wed, 2008-06-18 at 23:43 -0400, seth vidal wrote:
> On Wed, 2008-06-18 at 16:19 -0430, Patrick O'Callaghan wrote:
> > > 
> > > and send the output along.
> > 
> > # yum -d3 info yum | grep 'time:'
> > Config time: 0.182
> > rpmdb time: 0.000
> > pkgsack time: 7.505
> 
> It's taking 7.5 seconds to put the package sack together and it's not
> downloading ANYTHING? Not even the mirrorlists again or rechecking the
> repomd.xml?

Yes.

> I ask b/c the same version on my not-exceptionally-fast laptop is:
> 
> yum -d3 info yum | grep 'time:'
> Config time: 0.106
> rpmdb time: 0.000
> pkgsack time: 0.345

Interesting.

I ran it again a few times, first doing an update:

[root at bree S3]# yum update
Loaded plugins: fastestmirror, protectbase, refresh-packagekit
Loading mirror speeds from cached hostfile
 * livna-development: mirror.atrpms.net
 * livna: mirror.atrpms.net
 * google: dl.google.com
 * fedora: ftp.usf.edu
 * adobe-linux-i386: linuxdownload.adobe.com
 * localrepo:
 * updates: ftp.usf.edu
0 packages excluded due to repository protections
Setting up Update Process
No Packages marked for Update
[root at bree S3]# yum -d3 info yum | grep 'time:'
Config time: 0.163
rpmdb time: 0.000
pkgsack time: 2.526
[root at bree S3]# yum -d3 info yum | grep 'time:'
Config time: 0.168
rpmdb time: 0.000
pkgsack time: 1.690
[root at bree S3]# yum -d3 info yum | grep 'time:'
Config time: 0.162
rpmdb time: 0.000
pkgsack time: 6.976
[root at bree S3]# yum -d3 info yum | grep 'time:'
Config time: 0.163
rpmdb time: 0.000
pkgsack time: 1.774
[root at bree S3]#

These runs were one after the other in quick succession. What's notable
is the large variance in pkgsack time.

poc




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