Thanks Sebastian. On linux/osx running a native "cp" command via
os.system or Popen is heaps faster as well than copy2 last time I checked.
Interesting to hear about threaded copies not being faster for you
though. I will double check my setup but am pretty sure it makes a
massive difference. If it's so unpredictable though I might just pop up
a little dialog when the user wishes to localise to ask for the desired
amount of concurrent threads.
Thanks for the heads up no QThreads, that is exactly my plan (as you may
have guessed based on my post on the PySide forum :)). Though I might
just leave it as is and not overcomplicate it. Will decided today...
On 16/12/13 22:24, Sebastian Elsner wrote:
On 12/16/2013 09:29 AM, Frank Rueter wrote:
Hola everybody,
I had a quick look at this this morning and realised I would have to
re-write everything from scratch - but then couldn't resists :-D.
Could some of you test the attached file and tell me how you get on?
Just put it into your NUKE_PATH and put this into your menu.py:
import LocaliseThreaded
LocaliseThreaded.register()
This will replace the default localising behaviour with a threaded one.
The maximum threads are half of your Nuke threads (nuke.THREADS) at
the moment (I will make this a preference though). There will be info
about concurrent threads in the progress bar as it does it's thing.
It's work in progress at this stage but since my day is coming to an
end, I thought it would be good to get it out there for a test run,
so I know more in the morning.
Things I still need/want to do:
* support split file knobs for stereo projects
* support proxy knobs (should I, not sure if the default does?)
* refactor the code so that multiple threads can tackle the same
read node (at the moment one Read node is allocated one task)
* benchmark the copy function (currently shutil.copy2). Pretty sure
it's not the fastest one for large files and I might have to roll
my own to speed things up.
On windows copy2 is really slow compared to native copying. You can
use this snippet to speed things up:
import platform
if platform.system() == "Windows":
from ctypes import windll
def copy2(src, dst):
windll.kernel32.CopyFileA(src, dst, False)
else:
from shutil import copy2
Also copying in multiple threads on windows does not help at all to
speed things up. Worse, it will make things slower. But this is mostly
depending on your fileserver. I never do more than one thread on our
machines, its not worth the effort of handling the threads
dynamically. If you still want that and need an easy solution try
QThreadPool and QRunnable. Its not as flexible as handling the threads
yourself, but it is difficult to get it wrong, which is something you
cannot say about QThread.
Cheers
Sebastian
*
Let me know how it works, especially if you are on windows as I can't
test that here.
Cheers,
frank
P.S.: If somebody is an expert with python threading with a little
bit of time on their hands, get in touch, I'm pretty sure the way I'm
doing this can be optimised, especially for trying to dynamically
allocate threads to efficiently deal with outstanding tasks.
On 14/12/13 23:23, Howard Jones wrote:
I was wondering that. It was going to be my next question (honest)
Howard
On 14 Dec 2013, at 08:19, Thorsten Kaufmann<thorsten.kaufm...@mackevision.de>
wrote:
This also sounds like a job for "import nuke" no? ;)
Thorsten Kaufmann
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Von:nuke-python-boun...@support.thefoundry.co.uk
[nuke-python-boun...@support.thefoundry.co.uk] im Auftrag von Frank Rueter
[fr...@beingfrank.info]
Gesendet: Samstag, 14. Dezember 2013 01:11
An: Nuke Python discussion; Justin Fpc
Betreff: Re: [Nuke-python] nuke localise
I have wrote my own localising script from scratch just before this feature was
implemented. I will have a peek next week if I can quickly adapt it to use the
localising settings in the preferences and nodes. If so it will be threaded and
we should get the best of both worlds until the built in feature is more
flexible to allow background processing.
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On 13 December 2013 9:58:43 PM Justin Fpc wrote:
Hi all,
I would be very interested if there is anyway to manage this localising in
background.
I've also tested to use the threading method and found the same problem/cause
as Frank.
Justin
2013/12/13 Howard Jones
<mrhowardjo...@yahoo.com<mailto:mrhowardjo...@yahoo.com>>
Thanks for testing. That would have stumped me.
I contacted support.
Howard
On 12 Dec 2013, at 23:48, Frank Rueter
<fr...@beingfrank.info<mailto:fr...@beingfrank.info>> wrote:
I remember now:
I tried this a while ago myself and failed because doLocalise() is a wrapper
function using nuke.localiseFiles which seems to be compiled.
Since nuke.localiseFiles takes care of the progress bar (presumably juggling
it's own threads) it's not just a matter of using
thread = threading.Thread(target=doLocalise, args=(True,))
thread.start()
or
thread = threading.Thread(target=nuke.localiseFiles, args=(readKnobList,))
thread.start()
Both the above do the job, but you won't get the progress bar and the main
thread is still blocked.
There might be a way but I don't know how, other than basically writing the
localisation logic yourself.
So best to push that feature request to make nuke.localiseFiles thread-able.
Cheers,
frank
On 13/12/13 12:15, Frank Rueter wrote:
Yes, you should be able to. I have a quick peek...
On 13/12/13 11:29, Howard Jones wrote:
Ok done. Out of interest can this be run in a separate thread? My python brain
hasn't got round threading, but i can run doLocalise(0) so could I thread it
instead?
Howard
On 12 Dec 2013, at 22:02, Frank
Rueter<fr...@beingfrank.info><mailto:fr...@beingfrank.info> wrote:
I have asked for this in the pas as well, so please bug support to up the
priority ;)
On 11/12/13 05:23, Howard Jones wrote:
Hi
Is it possible to run localise from a shell or in the background?
H
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