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From: Andreas Politz <politza@hochschule-trier.de>
To: "Clément Pit-Claudel" <cpitclaudel@gmail.com>
Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
Subject: Re: Why does adding a useless copy-sequence and discarding the result make my ELisp 40 times faster?
Date: Sat, 25 Mar 2017 18:37:19 +0100	[thread overview]
Message-ID: <87inmxdzqo.fsf@luca> (raw)
In-Reply-To: <f00e2188-8688-4b6d-703f-8644992d3c2c@gmail.com> ("Clément Pit-Claudel"'s message of "Sat, 25 Mar 2017 13:02:36 -0400")

Clément Pit-Claudel <cpitclaudel@gmail.com> writes:

>> This suggests to me, that the deciding factor in these numbers is python
>> and not Emacs.
>
> The thing is, I reproduced these numbers with cat and a simple C
> program, so it's not python itself.

OK, then I'm probably wrong.

> [...] observation 1 (why is the program without sleep or copy-sequence
> so slow?)

I expressed a theory about this earlier.  I suggest taking a look at
send_process in process.c

-ap




  parent reply	other threads:[~2017-03-25 17:37 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-25  4:06 Why does adding a useless copy-sequence and discarding the result make my ELisp 40 times faster? Clément Pit-Claudel
2017-03-25  4:24 ` Clément Pit-Claudel
2017-03-25  7:05   ` Eli Zaretskii
2017-03-25 10:38     ` Andreas Politz
2017-03-25 13:49       ` Clément Pit-Claudel
2017-03-25 16:38         ` Andreas Politz
2017-03-25 17:02           ` Clément Pit-Claudel
2017-03-25 17:26             ` Eli Zaretskii
2017-03-25 17:40               ` Andreas Politz
2017-03-25 17:49                 ` Eli Zaretskii
2017-03-25 17:37             ` Andreas Politz [this message]
2017-03-25 13:45     ` Clément Pit-Claudel
2017-03-25 10:47   ` Andreas Politz
2017-03-25 13:54     ` Clément Pit-Claudel
2017-03-26 13:14 ` Stephen Leake
2017-03-26 13:35   ` Clément Pit-Claudel

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