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[Octave-bug-tracker] [bug #47761] TISEAN: huge static data


From: marco atzeri
Subject: [Octave-bug-tracker] [bug #47761] TISEAN: huge static data
Date: Fri, 22 Apr 2016 14:34:58 +0000
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0

URL:
  <http://savannah.gnu.org/bugs/?47761>

                 Summary: TISEAN: huge static data
                 Project: GNU Octave
            Submitted by: matzeri
            Submitted on: Fri 22 Apr 2016 02:34:57 PM GMT
                Category: Octave Forge Package
                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: other
        Operating System: Microsoft Windows

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Details:

Critical on 32bit cygwin 
https://www.cygwin.com/ml/cygwin/2016-04/msg00564.html

4 of the tisean shared libs have loaded image > 10 time bigger
than octave itself.

Size       Shared lib
0x01038000 /usr/bin/cygoctinterp-3.dll
0x0104f000 /usr/bin/cygoctave-3.dll 

0x0cb25000 /usr/lib/.../__surrogates__.oct
0x0cb25000 /usr/lib/.../__upo__.oct
0x0cb25000 /usr/lib/.../lazy.oct
0x0cb26000 /usr/lib/.../__c1__.oct 

As noted by another maintainer

Static Data : The bss segment is taking up much space...
The F77 parts apparently use COMMON arrays "the sizes are chosen
generously for normal purposes". 
Ugh.






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