Overhead of individual python apps

[Neil Hodgson]

Re: Overhead of individual python apps

Dennis Lee Bieber:
[color=blue]
> I've not investigated -- but what is the default stack size given to
> an application?[/color]

Python has a stack reserve of 2000000 bytes but that is an
allocation of virtual space. Pages are realised in that allocation as
required with an initial stack commit of one page, 4096 bytes.

Neil

C:\Python24>dum pbin /headers python.exe
Microsoft (R) COFF/PE Dumper Version 7.10.3077
Copyright (C) Microsoft Corporation. All rights reserved.


Dump of file python.exe

PE signature found

File Type: EXECUTABLE IMAGE

FILE HEADER VALUES
14C machine (x86)
4 number of sections
424A51B8 time date stamp Wed Mar 30 17:14:00 2005
0 file pointer to symbol table
0 number of symbols
E0 size of optional header
10F characteristics
Relocations stripped
Executable
Line numbers stripped
Symbols stripped
32 bit word machine

OPTIONAL HEADER VALUES
10B magic # (PE32)
7.10 linker version
400 size of code
A00 size of initialized data
0 size of uninitialized data
1062 entry point (1D001062)
1000 base of code
2000 base of data
1D000000 image base (1D000000 to 1D004FFF)
1000 section alignment
200 file alignment
4.00 operating system version
0.00 image version
4.00 subsystem version
0 Win32 version
5000 size of image
400 size of headers
0 checksum
3 subsystem (Windows CUI)
0 DLL characteristics
1E8480 size of stack reserve
1000 size of stack commit
100000 size of heap reserve
1000 size of heap commit
....