Message 195357 - Python tracker

Message195357

Author	pitrou
Recipients	christian.heimes, hynek, jcea, neologix, pitrou, tarek, vstinner
Date	2013-08-16.16:43:45
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1376671415.2510.2.camel@fsol>
In-reply-to	<1376671082.1.0.874272119893.issue18756@psf.upfronthosting.co.za>

Content
> > Well, even with greenlets, I assume you're using at least one FD > (socket) per client, no? > > So you can get EMFILE on socket() just as on os.urandom(). > > I do many calls on urandom() so that's the FD bottleneck. Unless you're doing many calls in parallel it's unlikely to be a bottleneck. At worse you can write your own /dev/urandom reading code, with a shared fd amongst all your threads / greenlets. os.urandom() is a convenience function, it doesn't have to be extremely optimized.

Content

> > Well, even with greenlets, I assume you're using at least one FD
> (socket) per client, no?
> > So you can get EMFILE on socket() just as on os.urandom(). 
> 
> I do many calls on urandom() so that's the FD bottleneck.

Unless you're doing many calls *in parallel* it's unlikely to be a
bottleneck.
At worse you can write your own /dev/urandom reading code, with a shared
fd amongst all your threads / greenlets.

os.urandom() is a convenience function, it doesn't have to be extremely
optimized.

History
Date	User	Action	Args
2013-08-16 16:43:45	pitrou	set	recipients: + pitrou, jcea, vstinner, christian.heimes, tarek, neologix, hynek
2013-08-16 16:43:45	pitrou	link	issue18756 messages
2013-08-16 16:43:45	pitrou	create