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Hi Robert,<br>
<br>
yes that is my guess but there also is this loop that steps all
morphs (clock, browsers.. ) so I just don't know and I'm not deep
into the innards of Squeak. Just a happy user. And I don't know how
VNC handles the display updates.<br>
<br>
So let's wait for someone who knows. <br>
<br>
Cheers,<br>
<br>
Herbert<br>
<br>
<div class="moz-cite-prefix">Am 13.07.2020 um 17:46 schrieb Robert
via Squeak-dev:<br>
</div>
<blockquote type="cite"
cite="mid:kafpOFK6Qut4fp7aoT9eonjcJm3KmF3XtZvy25nrTHCk0TLFDkFBr6wolbu3X27iBYaQHbWxhTFB_r-bSr0NbQ3a5hNpwzbU-YMUp3uDaAU=@pm.me">
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<div>Hi Herbert,</div>
<div><br>
</div>
<div>That 15+% cpu load at idle seems to indicate polling I/O,
yes?<caret></caret></div>
<div><br>
</div>
<div id="protonmail_signature_block"
class="protonmail_signature_block">
<div>
<div>Kindly,<br>
Robert<br>
</div>
</div>
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On Mon, Jul 13, 2020 at 11:21, Herbert König <<a
href="mailto:herbertkoenig@gmx.net" class=""
moz-do-not-send="true">herbertkoenig@gmx.net</a>> wrote:
<blockquote class="protonmail_quote" type="cite"> Hi Robert,<br>
<br>
I cannot directly reply but a datapoint:<br>
On a PiZeroW an idle Squeak 5.3 uses 15+ % CPU. Also if the
Window is minimized. That does not look event driven but maybe
tightvnc plays a role here too.<br>
<br>
Otherwise it runs fine over months at 60 % CPU 24/7 on an A+
since 2014. Outside between -20 and +40 ^C. That's 5.1
currently. I can really recommend using Squeak on a Pi. Unless
that constant CPU load cannot be accepted.<br>
<br>
Cheers,<br>
<br>
Herbert<br>
<br>
<img src="cid:part2.1149C15A.53E2F7E8@gmx.net" alt=""
src-original-pm-cid="imap://herbertkoenig%40gmx%2Enet@imap.gmx.net:993/fetch%3EUID%3E/INBOX%3E81925?header=quotebody&part=1.1.2.2&filename=ogpojichekdajmne.png"
class=""><br>
<br>
<div class="moz-cite-prefix">Am 13.07.2020 um 16:02 schrieb
Robert Withers via Squeak-dev:<br>
</div>
<blockquote type="cite">
<p>Hey y'all, there is a discussion thread on this article [1]
about Smalltalk on a Pi. I commented pointing to Squeak on a
Pi. Another commenter made this statement and I wish to
respond.<br>
</p>
<blockquote>
<div class="comment-content">
<p>I used a Squeak variant to test hardware and prototype
UI ideas. Ran like a champ on bare bones 68000, PPC
& ARM boards.</p>
<p>The only critique I have of using Squeak out of the box
is <i>it’s original VM used polling for I/O</i>. I’m
sure there are VMs by now that don’t have this problem.
And <i>message dispatch is a bit of a pig</i> in terms
of power usage. But again, a properly JITted Smalltalk
VM should be fine. I would LOVE IT if Smalltalk or Self
became <i>popular for embedded work</i>.</p>
</div>
</blockquote>
<p>K, r</p>
<p>---<br>
</p>
<p>[1] Making Smalltalk On A Raspberry Pi - <a
class="moz-txt-link-freetext"
href="https://hackaday.com/2020/07/12/making-smalltalk-on-a-raspberry-pi/"
moz-do-not-send="true">https://hackaday.com/2020/07/12/making-smalltalk-on-a-raspberry-pi/</a><br>
</p>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">On 7/13/20 9:45 AM, Robert
Withers wrote:<br>
</div>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">Hello everyone!
Does the current cog spur 64-it VM use polling I/O? Or is some other
mechanism used?
Kindly,
rabbit
</pre>
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