bugGNU Octave - Bugs: bug #48785, Something about classes is much...

 
 

bug #48785: Something about classes is much slower in dev than 4.0.x

Submitted by:  Colin Macdonald <cbm>
Submitted on:  Sun 14 Aug 2016 08:56:57 PM UTC  
 
Category: PerformanceSeverity: 2 - Minor
Priority: 3 - LowItem Group: Regression
Status: InvalidAssigned to: None
Originator Name: Open/Closed: Closed
Release: devOperating System: GNU/Linux

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Tue 21 Feb 2017 12:55:04 AM UTC, comment #5:

Closing report.

Kai Torben Ohlhus <siko1056>
Project Member
Tue 23 Aug 2016 06:27:36 AM UTC, comment #4:

Thanks! I wonder why I see this as I also compile with close-to-defaults:

I will try again without the openmp next time I recompile.

my CPU: Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz

Colin Macdonald <cbm>
Tue 23 Aug 2016 04:48:58 AM UTC, comment #3:

Fedora 24 Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz:

4.0.3 octave-cli
tic; for i=1:100000, y = sin(6); end; toc
Elapsed time is 0.445517 seconds.

4.0.3 octave --no-gui
tic; for i=1:100000, y = sin(6); end; toc
Elapsed time is 0.504243 seconds.

dev changeset: 22363:0ca341841198
octave --no-gui
tic; for i=1:100000, y = sin(6); end; toc
Elapsed time is 0.478829 seconds.

(./configure and make with default flags)

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Tue 23 Aug 2016 04:37:28 AM UTC, comment #2:

Probably this is just the difference between my distro's package (Fedora 24) and my self-compiled version.

For example, I tried comparing a dummy "foo" class and a simple trig computation:

4.0.3:

dev:

So I suppose this should be closed invalid.

Colin Macdonald <cbm>
Mon 15 Aug 2016 07:47:29 AM UTC, comment #1:

Output of "profshow":

4.0.3:

tip:

Colin Macdonald <cbm>
Sun 14 Aug 2016 08:56:57 PM UTC, original submission:

Octave 4.0.3 with Symbolic dev:

But with tip:

I will try to track this down more later, but wanted to get this rolling in case I forget... again, I noticed this months ago :(

Colin Macdonald <cbm>

 

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Carbon-Copy List
  • -unavailable- added by siko1056 (Posted a comment)
  • -unavailable- added by dasergatskov (Posted a comment)
  • -unavailable- added by cbm (Submitted the item)
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    Follow 5 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Tue 21 Feb 2017 12:56:22 AM UTCsiko1056Open/ClosedOpen=>Closed
    Tue 21 Feb 2017 12:55:04 AM UTCsiko1056Severity3 - Normal=>2 - Minor
      Priority5 - Normal=>3 - Low
      StatusNone=>Invalid
    Sun 14 Aug 2016 08:56:57 PM UTCcbmCarbon-Copy-=>Added mtmiller

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