On 09/25/2009 12:43 AM, Andre Robatino wrote:
> On 09/24/2009 11:31 PM, Seth Vidal wrote:
>>
>>
>> On Thu, 24 Sep 2009, Ben Boeckel wrote:
>>
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>>> Seth Vidal wrote:
>>>>> Does yum-presto make use of multiple cores when rebuilding the
>>> RPMs?
>>>>> (My machines only have one, so I can't tell.)
>>>>
>>>> other than the xz compression part I believe most of the time is
>>>> disk bound, not cpu bound.
>>>>
>>>> -sv
>>>>
>>>
>>> The rpmrebuild operation has saturated one of my 3.0GHz Intel Core
>>> 2 Duo cores for at least a minute on large updates, so my guess is
>>> that that part is not multithreaded and CPU bound.
>>>
>>
>> right, currently - using xz -6 - which is using more cpu.
>
> Running {make,apply}deltaiso always maxes out my 2.7 GHz CPU, even
> between ISOs with RPMs using Gzip. I'll check what happens next time
> it's doing a delta rebuild during a F11 update.
As near as I can tell, applydeltarpm maxes out the CPU while it's
running during a F11 update, even though the RPMs use Gzip.
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