Hi, Am Donnerstag, den 08.03.2007, 01:40 -0300 schrieb Sidnei da Silva: > On 3/7/07, Christian Theune <[EMAIL PROTECTED]> wrote: > > Right. This optimization is about leveraging the fact that in many > > situations the upstream bandwith is *much* lower than the IO bandwith to > > the disk. > > > > Another condition that I have (and I think this is the general pattern) > > is that application threads should be given back to the pool as quickly > > as possible. > > > > If 5 seconds are spend in the application thread to untangle mime data > > which has nothing application-specific about it and then only 100ms or > > so in the application itself, I'd say there is a major overhead problem. > > I had came to the same conclusion a couple weeks ago, somehow *wink*. > Maybe we've been influenced by the same person. :) > > So if the uploaded file shouldn't be handled by the application > thread, neither by the IO layer, then I guess we need a 'upload > handling thread pool' of some sorts, whose sole purpose is to handle > incoming requests that are large before it gets to the application > thread while still outside the async IO layer.
I really wonder whether that's necessary. Actually. I'll take a look around the other web frameworks and check how they do their REQUEST processing. Maybe I can learn something from that. > Hopefully something similar could be done for files being sent *out* > of the application when they don't need any application processing > anymore (ie, Blobs!). We already have that. The FileStreamIterator allows you to hand out an iterable that will be used outside the application thread to stream data from. Christian -- gocept gmbh & co. kg - forsterstraße 29 - 06112 halle/saale - germany www.gocept.com - [EMAIL PROTECTED] - phone +49 345 122 9889 7 - fax +49 345 122 9889 1 - zope and plone consulting and development
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