From: skibud2
Subject: clisp and sockets
Date: 
Message-ID: <1161495187.576092.151350@e3g2000cwe.googlegroups.com>
I am doing a simple remote server using sockets and I am noticing that
the performance is no where near where I would expect. I am just doing
a read-eval-print-loop. All the time is in the sockets. Doing 1000
connections, doing basic evals, takes about 1 second. This seems long.
Does anybody have a suggestion of how I can speed this up?

Mike

From: skibud2
Subject: Re: clisp and sockets
Date: 
Message-ID: <1161495256.938785.273700@f16g2000cwb.googlegroups.com>
By the way, the connection is all local on the same computer. I am
trying to create a session server.


skibud2 wrote:
> I am doing a simple remote server using sockets and I am noticing that
> the performance is no where near where I would expect. I am just doing
> a read-eval-print-loop. All the time is in the sockets. Doing 1000
> connections, doing basic evals, takes about 1 second. This seems long.
> Does anybody have a suggestion of how I can speed this up?
> 
> Mike
From: Timofei Shatrov
Subject: Re: clisp and sockets
Date: 
Message-ID: <453b28ba.2794277@news.readfreenews.net>
On 21 Oct 2006 22:33:07 -0700, "skibud2" <·············@gmail.com> tried to
confuse everyone with this message:

>I am doing a simple remote server using sockets and I am noticing that
>the performance is no where near where I would expect. I am just doing
>a read-eval-print-loop. All the time is in the sockets. Doing 1000
>connections, doing basic evals, takes about 1 second. This seems long.
>Does anybody have a suggestion of how I can speed this up?

Your benchmark is rather meaningless, because we don't know how fast your
computer is or what code you execute. I wouldn't say that 1 second for 1000
connections is too long (CLISP is not the fastest Lisp out there). Two things
that may speed up your program:

1. Do you run the latest CLISP? I recall a recent version drastically increasing
the performance of Windows sockets.
2. Be sure that your code is compiled, not interpreted. Use compile-file and
compile as necessary.

-- 
|Don't believe this - you're not worthless              ,gr---------.ru
|It's us against millions and we can't take them all... |  ue     il   |
|But we can take them on!                               |     @ma      |
|                       (A Wilhelm Scream - The Rip)    |______________|
From: skibud2
Subject: Re: clisp and sockets
Date: 
Message-ID: <1161531117.298444.3060@m7g2000cwm.googlegroups.com>
I am running clisp on linux. It is running on a P4 3.2 ghz processor.
The operation that I am doing is:
(incf x) where x is on the remote server.

remotely -- I can do about 1,000 operations.
locally -- I can do about 1,000,000 operations.

Understandably, the sockets are going to have a decent amount of
overhead. I just wouldn't expect them to have this much. I am compiling
the file and using the simple example of the remote server found here:

http://clisp.cons.org/impnotes/socket.html