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Date:      Fri, 13 Nov 2015 16:21:37 -0800
From:      John-Mark Gurney <jmg@funkthat.com>
To:        Alfred Perlstein <alfred@freebsd.org>
Cc:        Vladimir Bogrecov <bogrecov@gmail.com>, python@freebsd.org, "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org>
Subject:   Re: Python on FreeBSD is slower than on Linux
Message-ID:  <20151114002137.GB65715@funkthat.com>
In-Reply-To: <5644E9F0.40805@freebsd.org>
References:  <CANx%2B6QKT00ZC4Gh3UHp7qW6mtKJHLn_NkMD1gegTYgiu=gByXg@mail.gmail.com> <5644E9F0.40805@freebsd.org>

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Alfred Perlstein wrote this message on Thu, Nov 12, 2015 at 11:35 -0800:
> I'm adding Freebsd-virtualization to this thread as both problems point 
> to some possible issue with FreeBSD as a guest.  (although a bare metal 
> comparison should likely be done as well).

This could simply be a python compiled w/ different compiler and
compiler optimization flags issue...

One easy way to eliminate FreeBSD is to take the Linux version of
python, and run it on FreeBSD using the linux emulator to help ensure
that the performance is the same when running the same binary on the
two OS's...

> On 11/12/15 11:26 AM, Vladimir Bogrecov wrote:
> > Hello,
> >
> > I'm developing a little project on Python 3.5. The server's operating
> > system is FreeBSD 10.2. Today I decided to do a little test "just for fun"
> > and the result has confused me. I ran the following code
> >
> > import random
> > import time
> >
> >
> > def test_sort(size):
> >      sequence = [i for i in range(0, size)]
> >      random.shuffle(sequence)
> >      start = time.time()
> >      ordered_sequence = sorted(sequence)
> >      print(time.time() - start)
> >
> >
> > if __name__ == '__main__':
> >      test_sort(1000000)
> >
> > on FreeBSD 10.2 x64 and on Debian 8 x64. Both computers was the smallest
> > (5$ per month) virtual machines on the Digital Ocean (
> > https://www.digitalocean.com). The average result on the FreeBSD was 1.5
> > sec, on the Debian 1.0 sec. Both machines was created specially for test
> > and had not any customization. Could you help me to understand why python
> > is so slower on FreeBSD and may be there are some steps I can perform to
> > speed up the python to work not slower than on Debian.
> >
> > I have found in Google the similar question:
> > https://lists.freebsd.org/pipermail/freebsd-python/2012-June/004306.html so
> > it has an interest not only for me.
> >
> > P.S. I really like FreeBSD and I would be happy to solve this issue. If you
> > will have an interest to this issue I can provide SSH access for both
> > machines :)

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."



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