Showing content from http://mail.python.org/pipermail/python-dev/attachments/20170606/4a27f611/attachment.html below:
<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Mon, Jun 5, 2017 at 8:10 PM, Tim Peters <span dir="ltr"><<a href="mailto:tim.peters@gmail.com" target="_blank">tim.peters@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">[Tim]<br>
>> So at most 9 arenas ("highwater mark") were ever simultaneously allocated [by the<br>
>> time the REPL prompt appeared in a 64-bit 3.6.1]..<br>
<span class=""><br>
> ... though not completely off-base.<br>
<br>
</span>Yes, 9 is in the ballpark of 16.<br><br></blockquote><div>Â </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I think _some_ increase of arena size should be a no-brainer,</blockquote><div><br></div><div>Maybe big enough to hold a bare, just started up interpreter?</div><div>Â <br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> but I<br>
don't expect it to help a lot. </blockquote><div><br></div><div>I was wondering about that -- in my experience with making re-sizable numpy arrays, (not the same use-case, I know!), I found that allocating memory wasn't all that slow, really. IN that use case, if you re-allocated every time you added a single element, it was dog-slow. But once you allocated less than, say, about every 10 or so, it started to make little difference how much you over-allocated.</div><div><br></div><div>In this case, I'm thinking that as long as there is a not-tiny arena, it just isn't going to make that much difference.</div><div><br></div><div>But only profiling will tell us.</div><div><br></div><div>-CHB</div><div><br></div></div><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><br>Christopher Barker, Ph.D.<br>Oceanographer<br><br>Emergency Response Division<br>NOAA/NOS/OR&R       (206) 526-6959  voice<br>7600 Sand Point Way NE   (206) 526-6329  fax<br>Seattle, WA  98115     (206) 526-6317  main reception<br><br><a href="mailto:Chris.Barker@noaa.gov" target="_blank">Chris.Barker@noaa.gov</a></div>
</div></div>
RetroSearch is an open source project built by @garambo
| Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4