pacman/yaourt too slow

jmss · 2010-12-12 15:31:17

Hi,

pacman/yaourt is becoming slower through the last months/years.

It performs intensive disk work before doing a -S or -Ss operation.

Before it was very fast. One of the main advantages of Arch Linux was pacman (compared to yum which was very slow).

Now yum seems to be faster (I don't use it regularly), but on the other hand pacman seems slower.

Moreover, the advantages related to why pacman is slower don't show. At least I haven't noticed any.

Do you know what's happening? Is it due to file fragmentation as I read elsewhere?

My laptop is kind of old (2006 or so) but pacman used to work *really* fast in the past. It's a 10x difference.

Thanks for any enlightening.

skunktrader · 2010-12-12 15:47:09

Does running pacman-optimize improve performance?

ngoonee · 2010-12-12 15:49:25

jmss wrote:

Hi,
pacman/yaourt is becoming slower through the last months/years.
It performs intensive disk work before doing a -S or -Ss operation.
Before it was very fast. One of the main advantages of Arch Linux was pacman (compared to yum which was very slow).
Now yum seems to be faster (I don't use it regularly), but on the other hand pacman seems slower.
Moreover, the advantages related to why pacman is slower don't show. At least I haven't noticed any.
Do you know what's happening? Is it due to file fragmentation as I read elsewhere?
My laptop is kind of old (2006 or so) but pacman used to work *really* fast in the past. It's a 10x difference.
Thanks for any enlightening.

There's quite a bit of database optimizations in the current dev version of pacman. Just wait for it.

jmss · 2010-12-12 17:39:21

skunktrader wrote:

Does running pacman-optimize improve performance?

No. I did that, following the advice I saw in the same topic where I read it had to do with file fragmentation.

jmss · 2010-12-12 17:40:53

ngoonee wrote:

There's quite a bit of database optimizations in the current dev version of pacman. Just wait for it.

OK. It is strange however; such a performance degradation in what I considered by far the best package manager. Hope the dark times will pass soon.

jmss · 2010-12-15 00:50:13

I decided to measure the time of a system update right after rebooting:

$ time yaourt -Syu
Password:
:: Synchronizing package databases...
core is up to date
extra is up to date
community is up to date
archlinuxfr is up to date

real 1m45.049s
user 0m0.630s
sys 0m1.003s

What do you think?

$ cat /proc/cpuinfo |grep "model name"
model name : Intel(R) Pentium(R) M processor 1.73GHz

thestinger · 2010-12-15 01:03:01

pacman -Sy now only writes changes to the disk (since v3.4) so you end up with lots of spread out files, v3.5 will have the tar sync database so it won't be a problem

try doing pacman -Syy to fix it

jmss · 2010-12-15 01:41:46

Hi,

I think it helped:

$ time yaourt -Syu
:: Synchronizing package databases...
core is up to date
extra is up to date
community is up to date
archlinuxfr is up to date

real 0m16.073s
user 0m0.567s
sys 0m1.053s

Thanks.

Arch Linux

#1 2010-12-12 15:31:17

pacman/yaourt too slow

#2 2010-12-12 15:47:09

Re: pacman/yaourt too slow

#3 2010-12-12 15:49:25

Re: pacman/yaourt too slow

#4 2010-12-12 17:39:21

Re: pacman/yaourt too slow

#5 2010-12-12 17:40:53

Re: pacman/yaourt too slow

#6 2010-12-15 00:50:13

Re: pacman/yaourt too slow

#7 2010-12-15 01:03:01

Re: pacman/yaourt too slow

#8 2010-12-15 01:41:46

Re: pacman/yaourt too slow

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