Charles Turner

From: matju@artengine.ca (Mathieu Bouchard)

do you think that this is a cool feature? :)

Date: Sat, 18 Aug 2007 02:52:22 -0400 (EDT)

Subject: Re: [PD] pd and 64bit Linux again

On Fri, 17 Aug 2007, Winfried Ritsch wrote:

> But since one rule is, never guess, measure why, I have a quick

> question. Is there a profiling tool on oject or message base ? I can

> remember there was one in Max/FTS, so I can find out the bad

Since I reimplemented the stack overflow checker so that it really

checks every sent message, it's now easier to make a profiler.

Actually, I just made one tonight, when reading your email. It looks

http://artengine.ca/desiredata/gallery/simple-benchmark.png

those green numbers represent real time, measured hierarchically (that

is, all sent messages count as part of the sender), whereas it could

have excluded sent messages so that all visible times add up (either is

more useful than the other sometimes). It is an exhaustive measurement,

that is, every message is counted, whereas it could be statistical

instead, using unix alarms to make statistics on stack snapshots.

You make the green numbers appear by selecting "get elapsed" from the

This example was made from making a few clicks on the messagebox and it

is measured such that 1 unit = 800000000 cpu ticks. in practice my cpu

switched to a higher speed. Correct profiling involves setting the

speed of the cpu to a fixed value so that the values can be displayed

If you want to try it out we could meet online and set it up on your

_ _ __ ___ _____ ________ _____________ _____________________ ...

| Mathieu Bouchard - tél:+1.514.383.3801, Montréal QC Canada

https://www.bek.no/mailman/listinfo/piksel

====== Forwarded Message ======
Date: 8/18/07 2:53 AM
Received: 8/18/07 3:06 AM -0400
From: matju@artengine.ca (Mathieu Bouchard)
To: desiredata@goto10.org, piksel@bek.no

---------- Forwarded message ----------
Date: Sat, 18 Aug 2007 02:52:22 -0400 (EDT)
From: Mathieu Bouchard 
To: Winfried Ritsch 
Cc: pd-list@iem.at
Subject: Re: [PD] pd and 64bit Linux again

> But since one rule is, never guess, measure why, I have a quick
> question. Is there a profiling tool on oject or message base ? I can
> remember there was one in Max/FTS, so I can find out the bad
> objects... ?

Since I reimplemented the stack overflow checker so that it really
checks every sent message, it's now easier to make a profiler.
Actually, I just made one tonight, when reading your email. It looks
like this:

those green numbers represent real time, measured hierarchically (that
is, all sent messages count as part of the sender), whereas it could
have excluded sent messages so that all visible times add up (either is
more useful than the other sometimes). It is an exhaustive measurement,
that is, every message is counted, whereas it could be statistical
instead, using unix alarms to make statistics on stack snapshots.

You make the green numbers appear by selecting "get elapsed" from the
View menu.

This example was made from making a few clicks on the messagebox and it
is measured such that 1 unit = 800000000 cpu ticks. in practice my cpu
switched to a higher speed. Correct profiling involves setting the
speed of the cpu to a fixed value so that the values can be displayed
in actual seconds.

If you want to try it out we could meet online and set it up on your
computer.

  _ _ __ ___ _____ ________ _____________ _____________________ ...
| Mathieu Bouchard - tél:+1.514.383.3801, Montréal QC Canada
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