yum 3.2.23 more than 10x slower than 3.2.21?!

Joe Nall joe at nall.com
Fri Jun 26 15:10:07 UTC 2009


On Jun 26, 2009, at 9:49 AM, Seth Vidal wrote:

>
>
> On Fri, 26 Jun 2009, Joe Nall wrote:
>>> just for fun:
>>> set color=never in your yum.conf
>>> and run it again.
>>
>> No time difference here (2:23->2:26) for color=never on yum 3.2.23.  
>> More than 2 minutes of cpu time on a 3.1GHz E8400. Downgraded to  
>> 3.2.21-2 from koji and the same 'yum list updates' takes 6.4 seconds.
>>
>
> and if you can make this happen every time with 3.2.23 if you could  
> please run:
>
> time yum -d 3 list updates | grep 'time:'
>
> and paste all the output.
>
> thanks

[root at fast ~]# yum --version
3.2.21
   Installed: yum-metadata-parser-1.1.2-10.fc10.x86_64 at 2009-01-04  
17:01
   Built    : Fedora Project at 2008-10-15 13:38
   Committed: James Antill <james at fedoraproject.org> at 2008-10-14  
22:00

   Installed: yum-3.2.21-2.fc10.noarch at 2009-06-26 14:42
   Built    : Fedora Project at 2009-01-12 17:30
   Committed: Seth Vidal <skvidal at fedoraproject.org> at 2009-01-07  
22:00

   Installed: rpm-4.6.1-1.fc10.x86_64 at 2009-06-06 05:29
   Built    : Fedora Project at 2009-05-18 11:26
   Committed: Panu Matilainen <pmatilai at redhat.com> at 2009-05-18 22:00
[root at fast ~]# time yum -d 3 list updates | grep 'time:'
Config time: 0.067
pkgsack time: 4.729
rpmdb time: 0.000
up:Obs Init time: 0.691
up:simple updates time: 0.183
up:obs time: 0.004
up:condense time: 0.000
updates time: 1.384

real	0m6.428s
user	0m6.004s
sys	0m0.424s


------------------------------------
Second of two identical runs with 3.2.23:

[root at fast ~]# yum --version
3.2.23
   Installed: rpm-4.6.1-1.fc10.x86_64 at 2009-06-06 05:29
   Built    : Fedora Project at 2009-05-18 11:26
   Committed: Panu Matilainen <pmatilai at redhat.com> at 2009-05-18 22:00

   Installed: yum-3.2.23-3.fc10.noarch at 2009-06-26 15:02
   Built    : Fedora Project at 2009-05-20 22:30
   Committed: Seth Vidal <skvidal at fedoraproject.org> at 2009-05-20  
22:00

   Installed: yum-metadata-parser-1.1.2-10.fc10.x86_64 at 2009-01-04  
17:01
   Built    : Fedora Project at 2008-10-15 13:38
   Committed: James Antill <james at fedoraproject.org> at 2008-10-14  
22:00
[root at fast ~]# time yum -d 3 list updates | grep 'time:'
Config time: 0.040
pkgsack time: 141.108
rpmdb time: 0.002
up:Obs Init time: 0.158
up:simple updates time: 0.172
up:obs time: 0.005
up:condense time: 0.000
updates time: 0.846

real	2m22.245s
user	2m21.764s
sys	0m0.426s





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