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digitalmars.D.bugs - [Issue 7921] New: Two order of magnitude file size increase (up to 111 MiB for GtkD) mostly from zeroes

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=7921

           Summary: Two order of magnitude file size increase (up to 111
                    MiB for GtkD) mostly from zeroes
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: verylonglogin.reg gmail.com



---
An example:

GtkD is built using singe (gtk-one-obj.lib) or separate (one per source 
file) object files (gtk-sep-obj.lib).

Than main.d that imports gtk.Main is built using those libraries.

Than zeroCount utils is built and launched over resulting files:
--------------------------------------------------
   Zero bytes|     %|    Non-zero| Total bytes|        File
      3628311| 21.56|    13202153|    16830464|gtk-one-obj.lib
      1953124| 15.98|    10272924|    12226048|gtk-sep-obj.lib
    127968798| 99.00|     1298430|   129267228|main-one-obj.exe
       743821| 37.51|     1239183|     1983004|main-sep-obj.exe
--------------------------------------------------

These zero byte counts are similar for dmd 2.054-2.057.

So one has to use very slow per-file build to produce a good (not 100 
MiB) executable.
No matter what *.exe is launched, its process allocates ~20 MiB of RAM 
(loaded Gtk dll-s).

See also:
"Building GtkD app on Win32 results in 111 MiB file mostly from zeroes" thread:
http://www.digitalmars.com/d/archives/digitalmars/D/Building_GtkD_app_on_Win32_results_in_111_MiB_file_mostly_from_zeroes_141758.html

A post in "Program size, linking matter, and static this()" thread:
http://www.digitalmars.com/d/archives/digitalmars/D/Program_size_linking_matter_and_static_this_152387.html#N152875

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next sibling parent d-bugmail puremagic.com writes:
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Denis <verylonglogin.reg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED



---
This issue is fixed in dmd 2.058.
But no information about its source is given.

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---
Created an attachment (id=1091)
Example with gtkD

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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugzilla digitalmars.com



14:24:17 PDT ---
Make sure first that it is not this issue:

http://dlang.org/faq.html#bss

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---


 Make sure first that it is not this issue:
 
 http://dlang.org/faq.html#bss


AFAIK there was no changes with BSS in dmd 2.058. And GtkD doesn't use
__gshared arrays at all.

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Vladimir Panteleev <thecybershadow gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |thecybershadow gmail.com



00:18:30 PDT ---
Have you looked at the map file?

If not, try my map treemap visualization tool:
http://thecybershadow.net/d/mapview/

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Denis <verylonglogin.reg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------

        is obsolete|                            |



---
Created an attachment (id=1093)
Example with GtkD

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---
The example with built binaries for dmd 2.057 and dmd 2.058 (~10 MiB,
uncompressed ~250 MiB):
http://deoma-cmd.ru/files/other/huge-build-gtkD-full.7z

One can use Vladimir Panteleev's treemap visualization tool with *.map files
from the archive (as for me, it hangs Chrome).

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