Re: Serious simulation performance drop
Michael Vogt <mvo@debian.org> writes:
> On Tue, Sep 30, 2008 at 05:48:57PM +0200, Ferenc Wagner wrote:
>> Btw, I noticed that on Lenny:
>>
>> $ time /usr/bin/apt-get -o 'Debug::NoLocking=true' -s -qq upgrade
>>
>> real 0m4.351s
>> user 0m4.328s
>> sys 0m0.020s
>>
>> takes much more time than it does on Etch:
>>
>> $ time /usr/bin/apt-get -o 'Debug::NoLocking=true' -s -qq upgrade
>>
>> real 0m0.800s
>> user 0m0.776s
>> sys 0m0.020s
>>
>> even though the Etch machine has half the bogomips and more than twice
>> the /var/lib/apt/lists than the Lenny one (which is a paravirtual Xen
>> domain on a practically idle host, but this shouldn't matter).
>>
>> Did anything change between versions 0.6.46.4-0.1 and 0.7.14 that
>> could explain such a big difference in CPU consumption?
>
> Thanks for brining that up. I fixed it in my development bzr tree and
> merged it into the apt debian-sid branch.
Way cool! I curiously clicked on the VCS link on
http://packages.qa.debian.org/a/apt.html, but didn't see anything. I
know nothing about bzr, though so it may be quite normal... Then
could you please summarize in a couple of words what the problem was?
--
Thanks,
Feri.
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