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From: Jim Klo <jim.klo@sri.com>
To: "<user@couchdb.apache.org>" <user@couchdb.apache.org>
Subject: Re: Erlang vs JavaScript
Thread-Topic: Erlang vs JavaScript
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Date: Sun, 18 Aug 2013 07:11:14 +0000
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FWIW: this thread has been the best holy war I've read in a long time.=20

:-)

On Aug 17, 2013, at 11:51 PM, "Alexander Shorin" <kxepal@gmail.com> wrote:

> On Sun, Aug 18, 2013 at 10:29 AM, Benoit Chesneau <bchesneau@gmail.com> w=
rote:
>> On Sun, Aug 18, 2013 at 6:51 AM, Thanos Vassilakis <thanosv@gmail.com>wr=
ote:
>>=20
>>> Build views performance gains:
>>> Python 4-6 times faster + less memory
>>=20
>>=20
>> Whatever the results of this benchmark are, this not the first time, I
>> heard that the python engine is faster than the Javascript one. I wonder
>> what could make it faster than the javascript engine. Since the protocol
>> and encode/decode steps are the same, this is likely an issue in the
>> couchjs program. That would be interesting to see where the JS engine lo=
st
>> times and eventually fix it.
>=20
> As for my experience, Python is not faster than JS until you don't
> have to use stdlib or other packages actively. Lack of stdlib power
> forces you write/ship a lot of routine code, that mostly not so fast
> and effective as some C-extension on disk "that does magic" for
> Python. For simple cases like
>=20
> def map(doc):
>  if 'foo' in doc:
>    yield doc['foo'], 1
>=20
> you will not see the profit.
>=20
> --
> ,,,^..^,,,