Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-30 Thread Glyph Lefkowitz
On Wed, Sep 30, 2009 at 4:00 PM, Alec Matusis wrote: > The biggest advantage of Twisted is a shorter development time, and the > availability of Python libraries. But I wonder if running something of the > scale of Facebook chat would be feasible at all, or if there are people on > this list tha

Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-30 Thread Michael Handverger
> The biggest advantage of Twisted is a shorter development time, and the > availability of Python libraries. But I wonder if running something of the > scale of Facebook chat would be feasible at all, or if there are people on > this list that have run many parallelized twisted servers that satur

Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-30 Thread Alec Matusis
>It became very painful once >we started getting CPU bound on 32 core CPU machines. We had to run multiple instances of our Twisted server implementation >to saturate the machine. I have since "ported" the same application to Erlang/OTP. It is about 1/5 the amount of code. >And it scales 1:1 horiz

Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-29 Thread Jarrod Roberson
On Tue, Sep 29, 2009 at 3:11 PM, Laurens Van Houtven wrote: > One is a language. The other is an event loop. I'm not sure how we are > supposed to compare the two. If he would've said E and Twisted, > perhaps it'd be a more interesting comparison :-) > > Also, what Steve said jumped right into my

Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-29 Thread Alec Matusis
neers seems to say that debugging of E is transparent, but I do not have the first hand knowledge. > -Original Message- > From: twisted-python-boun...@twistedmatrix.com [mailto:twisted-python- > boun...@twistedmatrix.com] On Behalf Of Jamu Kakar > Sent: Tuesday, September 29, 2

[Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-29 Thread Alec Matusis
- > From: twisted-python-boun...@twistedmatrix.com [mailto:twisted-python- > boun...@twistedmatrix.com] On Behalf Of Laurens Van Houtven > Sent: Tuesday, September 29, 2009 12:28 PM > To: Twisted general discussion > Subject: Re: [Twisted-Python] I found an interisting comment about >

Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-29 Thread Jamu Kakar
Hi Alec, On Tue, Sep 29, 2009 at 12:36 PM, Alec Matusis wrote: > As you can see from the %CPU column, I have my reasons for concern ;) This > is current copy and paste from a node with 2x quad core xeon L5420  @ > 2.50GHz - 1 twistd process per core. > >  PID USER      PR  NI  VIRT  RES  SHR S %C

Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-29 Thread Alec Matusis
cussion > Subject: Re: [Twisted-Python] I found an interisting comment about > Twisted vs. Erlang > > I think we are accounting way too much time to the unfounded > unaccountable random blathering of a troll :-) > > ___ > Twisted-Python ma

Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-29 Thread Laurens Van Houtven
I think we are accounting way too much time to the unfounded unaccountable random blathering of a troll :-) ___ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python

Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-29 Thread Drew Smathers
On Tue, Sep 29, 2009 at 2:16 PM, Alec Matusis wrote: > I have been a long time Twisted user, and I do not know Erlang. > I run into this interesting comment in engineering notes on Facebook Chat > scalability: > > http://www.facebook.com/note.php?note_id=51412338919&comments > > “Leif K-Brooks >

Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-29 Thread Laurens Van Houtven
One is a language. The other is an event loop. I'm not sure how we are supposed to compare the two. If he would've said E and Twisted, perhaps it'd be a more interesting comparison :-) Also, what Steve said jumped right into my eye as well. Don't get me wrong. I like Erlang -- it's functional, it'

Re: [Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-29 Thread Steve Steiner (listsin)
On Sep 29, 2009, at 2:16 PM, Alec Matusis wrote: > I have been a long time Twisted user, and I do not know Erlang. > I run into this interesting comment in engineering notes on Facebook > Chat > scalability: > > http://www.facebook.com/note.php?note_id=51412338919&comments > > “Leif K-Brooks >

[Twisted-Python] I found an interisting comment about Twisted vs. Erlang

2009-09-29 Thread Alec Matusis
I have been a long time Twisted user, and I do not know Erlang. I run into this interesting comment in engineering notes on Facebook Chat scalability: http://www.facebook.com/note.php?note_id=51412338919&comments “Leif K-Brooks I'm curious whether you considered using the Python library Twisted (