4 ms·

Response to massive boost in Ruby perfomance

34 points by soundsop 18y ago

astrec 18y ago
I reckon this is more comparable to the Ruby version: from random import Random from threading import Thread rand = Random().random THREADS, SIZE = 20, 100000 threads = [] class Test(Thread): def __init__ (self): Thread.__init__(self) def run(self): a = [rand()*SIZE for x in xrange(SIZE)] a.sort() def test(): for i in xrange(THREADS): t = Test() threads.append(t) t.start() for t in threads : if t.isAlive() : t.join() if __name__=='__main__': from timeit import Timer t = Timer("test()", "from __main__ import test") print "%.2f sec/pass" % (t.timeit(number=10)/10) Which results in 5.48 sec/pass Looking at cProfile, 50 or so calls to built-in method acquire takes an avg. 4.102 sec.
michaelneale 18y ago
What is Ruby Enterprise?
- briansmith 18y ago
  http://www.rubyenterpriseedition.com/ http://www.rubyenterpriseedition.com/ It is a small number of patches to the base MRI to enable better use of shared memory for forked processes, on operating systems that use copy-on-write semantics for fork. In particular, this optimization is exploited in the Phusion Passenger product that the same developers created. Phusion Passenger is kind of like mod_wsgi but using different process management. It seems the developers are also trying to offer a higher level of support than is available for the base MRI. For example, they backported the recent security patches to an older version than the MRI developers were willing to do.
  - michaelneale 18y ago
    Thanks, I had no idea it existed, passenger is kind of a mod_ruby? isn't it?
    - briansmith 18y ago
      Kinda. It is really similar to mod_wsgi. It can run Ruby applications that implement the Rack interface (there is a Rails/Rack adapter). The Rack interface is just the Ruby port of WSGI, so it can also run any WSGI application (e.g. Django).
rbanffy 18y ago
What would impress me would be a 2x gain in a 2 core machine, specially in threads that neither depend on each other nor share any data. Anyway, as a Zope/Plone consultant, I would be delighted to see Python making an effort to better support multi-core CPUs. Obviously, I would love if Ruby did that too.
scott_s 18y ago
A good lesson in make sure you're actually measuring what you think you're measuring.

34 points by soundsop 18y ago

I reckon this is more comparable to the Ruby version: from random import Random from threading import Thread rand = Random().random THREADS, SIZE = 20, 100000 threads = [] class Test(Thread): def __init__ (self): Thread.__init__(self) def run(self): a = [rand()*SIZE for x in xrange(SIZE)] a.sort() def test(): for i in xrange(THREADS): t = Test() threads.append(t) t.start() for t in threads : if t.isAlive() : t.join() if __name__=='__main__': from timeit import Timer t = Timer("test()", "from __main__ import test") print "%.2f sec/pass" % (t.timeit(number=10)/10) Which results in 5.48 sec/pass Looking at cProfile, 50 or so calls to built-in method acquire takes an avg. 4.102 sec.

michaelneale 18y ago

What is Ruby Enterprise?

briansmith 18y ago
http://www.rubyenterpriseedition.com/ http://www.rubyenterpriseedition.com/ It is a small number of patches to the base MRI to enable better use of shared memory for forked processes, on operating systems that use copy-on-write semantics for fork. In particular, this optimization is exploited in the Phusion Passenger product that the same developers created. Phusion Passenger is kind of like mod_wsgi but using different process management. It seems the developers are also trying to offer a higher level of support than is available for the base MRI. For example, they backported the recent security patches to an older version than the MRI developers were willing to do.
- michaelneale 18y ago
  Thanks, I had no idea it existed, passenger is kind of a mod_ruby? isn't it?
  - briansmith 18y ago
    Kinda. It is really similar to mod_wsgi. It can run Ruby applications that implement the Rack interface (there is a Rails/Rack adapter). The Rack interface is just the Ruby port of WSGI, so it can also run any WSGI application (e.g. Django).

rbanffy 18y ago

What would impress me would be a 2x gain in a 2 core machine, specially in threads that neither depend on each other nor share any data. Anyway, as a Zope/Plone consultant, I would be delighted to see Python making an effort to better support multi-core CPUs. Obviously, I would love if Ruby did that too.

scott_s 18y ago

A good lesson in make sure you're actually measuring what you think you're measuring.