[Octave-bug-tracker] [bug #44703] 10X slowdown on Windows XP vs. Linux

[Rik]

URL:
  <http://savannah.gnu.org/bugs/?44703>

                 Summary: 10X slowdown on Windows XP vs. Linux
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Thu 02 Apr 2015 10:31:59 AM PDT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Performance
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Microsoft Windows

    _______________________________________________________

Details:

While debugging another issue I wrote a small script to run the BIST tests in
linsolve.m 100 times.  This script is attached as lintst.m

Running 


tic; lintst; toc


as a quick benchmark I find dramatically slower behavior on Windows XP than
Linux.  At the same time that the Octave is running the code I see that the
csrss.exe process is taking about 75% of the CPU.  As soon as the code
completes the csrss.exe process drops back to non-existent.


Results:


Linux
GUI : 7.9 seconds
CLI : 6.3 seconds

Windows XP
GUI : 72.4 seconds
CLI : 58.1 seconds







    _______________________________________________________

File Attachments:


-------------------------------------------------------
Date: Thu 02 Apr 2015 10:31:59 AM PDT  Name: lintst.m  Size: 103B   By: rik5

<http://savannah.gnu.org/bugs/download.php?file_id=33517>

    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?44703>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/