Or seemingly.
A while ago I asserted that yum's performance is glacial, in the face of
claims it was much improved.
yum might not be the problem. Here is some evidence. My update of 184
packages on an otherwise unloaded HP DC7700 SFF ran from 17:58 to 20:07,
a little over two hours. Presumably those are actual install times we're
looking at, not time retrieving them across my (wireless) LAN.
[root at potoroo ~]# rpm -qa --last 2>/dev/null | grep 'Sun Apr 6' | wc -l
164
[root at potoroo ~]# rpm -qa --last 2>/dev/null | grep 'Sun Apr 6' | head -2
kdeartwork-4.0.3-3.fc9 Sun Apr 6 20:07:45 2008
extragear-plasma-4.0.1-5.fc9 Sun Apr 6 20:07:24 2008
[root at potoroo ~]# rpm -qa --last 2>/dev/null | grep 'Sun Apr 6' | tail -2
audit-libs-1.7-3.fc9 Sun Apr 6 17:58:18 2008
alsa-lib-1.0.16-3.fc9 Sun Apr 6 17:58:10 2008
[root at potoroo ~]#
Here is my yum.conf: despite the debug level, the information that might
be helpful in tuning yum is written only to the console where it scrolls
off and is lost; it's not, AFAIK, recorded anywhere safe.
[main]
cachedir=/var/cache/yum
keepcache=1
debuglevel=3
logfile=/var/log/yum.log
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
metadata_expire=1800
installonly_limit=8
installonlypkgs=kernel*
#exclude= *.?86
The machine specs:
Intel(R) Core(TM)2 CPU 6300 @ 1.86GHz
2 Gbytes RAM
320 Gbytes SATA (dual boot)
[root at potoroo ~]# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 142 MB in 3.02 seconds = 47.05 MB/sec
[root at potoroo ~]# hdparm -t /dev/sda{,,}
/dev/sda:
Timing buffered disk reads: 188 MB in 3.06 seconds = 61.46 MB/sec
/dev/sda:
Timing buffered disk reads: 190 MB in 3.01 seconds = 63.09 MB/sec
/dev/sda:
Timing buffered disk reads: 190 MB in 3.01 seconds = 63.17 MB/sec
[root at potoroo ~]#
I would expect a fresh install to go faster than this.
--
Cheers
John
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