[Qt-creator] OT: long build time

Duane duane.hebert at group-upc.com
Fri Sep 26 14:15:16 CEST 2014

On 9/26/2014 2:18 AM, Tim Sander wrote:
> Hi Duane
> Am Donnerstag, 25. September 2014, 08:37:01 schrieb Duane:
>> Qt 4.8.4.  Creator 3.2.1  Everything is 32 bit.
>> I have a couple of projects that are built on Windows (MSVC8 with Qt
>> integration), Fedora 16 and Fedora 20.  The two Linux boxes are in
>> virtual machines using Oracle Virtual Box.  The build time for a full
>> rebuild on Windows is 3 minutes.  The build time for both Linux boxes is
>> 15 minutes.
>> This is probably off topic since it could be due to the VM but I'm
>> looking for any suggestions from people that have dealt with something
>> similar.  This seems to be the case for GUI projects.  Projects that I
>> have that use only qtcore don't seem to have this issue.
>> Any suggestions for optimizing Creator or the VM?  I have the VMs
>> configured to use both of my cores and half the 4G or ram.
> Where are the projects located? If they are in a virtual filesystem from the
> mirrored from host i have seen problems with the timestamps, which are bad for
> make based builds. Also timestamp lookups i think very slow on this niche
> operating system.

Not sure I follow.  I have VMs for a few different distros.  My source 
is on SVN so I check this out within the distro.  The projects are 
created by exported the pro file on Windows using the VSIntegration 
pack.  So they should be more or less native builds on the Linux distros.

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