[Buildbot-devel] `make clean' is too slow on buildbot

[Rodney Stanton]

Weongyo,
     How much data does the running of make clean send to the terminal? 
To then be captured by buildbot.  Long ago, terminal speed limits would 
slow down actions.  I doubt that's the case but since everything else is 
being eliminated, I brought it up.

Rodney

On 4/23/2010 11:09 AM, Weongyo Jeong wrote:
> On Fri, Apr 23, 2010 at 10:30:38AM -0700, Dustin J. Mitchell wrote:
>    
>> On Thu, Apr 22, 2010 at 4:33 PM, Weongyo Jeong<weongyo.jeong at gmail.com>  wrote:
>>      
>>> It takes 32 seconds if I read it correctly. ??In real it normally took 2
>>> ~ 3 seconds that server is enough fast having 4 core CPU and 8 GB mem.
>>> Is there any reason?
>>>        
>> Buildbot doesn't do anything unusual that would cause slowness.
>>
>> Any number of things could cause this -- virtual machine clock skew?
>>      
> What virtual machine means?  VMware or VirtualBox?  Buildbot didn't run
> on virtual machine.  It ran on Dell server.
>
>    
>> Maybe the 'make clean' in that instance actually had a lot of files to
>> remove?
>>      
> One thing I noticed during `make clean' is that `make' process consumes
> 100% CPU at a moment.  But as you know make(1) operations are related
> with mostly disk I/O so it doesn't make sense to me that it consumes a
> lot of CPU.
>
>    
>> Maybe those files are on an NFS mount that was busy at the
>> time?
>>      
> No it's not on NFS mount point.  Normally the disks are very idle.
>
>    
>> Memory or CPU contention?
>>      
> No.  I think it has enough memory and CPU cores.
>
> regards,
> Weongyo Jeong
>
>
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