Tickets :: Comment on [#13566] Multi-thread performance while uploading

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Comment	>>> Neither Horde nor PHP has control over the number of CPUs in use on >>> the server. the only thing I could suggest is making sure that the >>> configuration for auto generating the views is turned off and see if >>> that helps >> >> I've actually narrowed it down to the fact that even if you open 3 >> tab in the same browser somehow apache consider it the same session > > Of course. Anything coming from the same browser/login is going to be > the same session. > >> and thus don't spread the work on 3 worker. Though if you open one in >> firefox and one in chrome those are considered as 2 session and will >> be working on 2 worker. >> >> I might be mistaken in the explication but the bahavior is what I noticed. >> >> Would there be a workaround possible with that to fire up more worker >> to increase the picture processing ? > > No. Userland code has no control over which PHP instance executes the > code (unless you start talking about using the various forking > functions in PHP and we are NOT going there). The only possibility is > to write a new backend handler for Horde_Queue (which queues the > operations when automatically generating the image thumbnails on > upload). Note that this would only help once the files are fully > uploaded, and not affect the actual uploaded of the files. > >> Like during the upload I noticed it's only working on 1 picture at a >> time instead of let's say 4 ( configurable the maximum of >> simultanuous upload from a user ) > > The core logic that handles the uploading is done via a third party > library called Plupload, and this does not currently support > simultaneous uploads, or immediate-start-on-drop operations. Even if > we did have the functionality, though, you are still stuck with the > problem of it all being done from a single session.
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