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Top Forums Programming Multiprocessing multipointers Post 302745639 by jim mcnamara on Monday 17th of December 2012 05:09:41 PM
Old 12-17-2012
First off there is a limit to the number of open files

Code:
ulimit -n

That is as many as you should try to open.

Secondly, systems limits the number of threads you can create. You should use threads, not processes for each file. The reason is that if your create lots of processes you can actually lock up the computer for a while in extreme cases.

Threads are limited, too. Example use of getconf to find your POSIX_THREAD maximum.

Code:
getconf -a | grep POSIX_THREAD_THREADS_MAX
_POSIX_THREAD_THREADS_MAX:      64

The parent program counts as one.
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gnome-search-tool(1)						   User Commands					      gnome-search-tool(1)

NAME
gnome-search-tool - search for files SYNOPSIS
gnome-search-tool [--named=text] [--path=folder] [--sortby=order] [--descending] [--contains=string] [--user=user] [--nouser] [--allmounts] [--empty] [--follow] [--group=group] [--hidden] [--mtimeless=date] [--mtimemore=date] [--notnamed=filename] [--regex=pattern] [--size- less=size] [--sizemore=size] [--start] [gnome-std-options] DESCRIPTION
The Search for Files application enables you to search for files on your system. Search for Files uses the find(1) command. OPTIONS
The following options are supported: --allmounts Select the 'Search other filesystems' search constraint. --contains=string Select the 'Contains the text' search constraint and set the text of that entry. Use a full filename or a partial filename with wildcards. See find(1) for more details about using wildcards. --descending Set sort order to descending. The default sort order is ascending. --empty Select the 'File is empty' search constraint. --follow Select the 'Follow symbolic links' search constraint. --group=group Select the 'Owned by group' search constraint and set the text of that entry. --hidden Select the 'Show hidden and backup files' search option. --mtimeless=date Select the 'Date modified before (days)' search constraint and set the text of that entry. --mtimemore=date Select the 'Date modified after (days)' search constraint and set the text of that entry. --named=text Set the text of the 'Name contains' search option. --notnamed=filename Select the 'File is not named' search constraint and set the text of that entry. Use a full filename or a partial filename with wildcards. See find(1) for more details about using wildcards. --nouser Select the 'Owner is unrecognized' search constraint. --path=folder Set the text of the 'Look in folder' entry. Defaults to the current working directory. --start Automatically start a search. --regex=pattern Select the 'File matches regular expression' search constraint and set the text of that entry. See find(1) for more details about the regular expression patterns that can be used. --sizeless=size Select the 'Size is less than (kilobytes)' search constraint and set the text of that entry. --sizemore=size Select the 'Size is more than (kilobytes)' search constraint and set the text of that entry. --sortby=order Sort files by one of the following: name, folder, size, type, or date. --user=user Select the 'Owned by user' search constraint and set the text of that entry. gnome-std-options Standard options available for use with most GNOME applications. See gnome-std-options(5) for more information. EXAMPLES
Example 1: Performing a basic search automatically example% gnome-search-tool --name=a.out --path=$HOME --autostart Example 2: Performing an advanced search automatically example% gnome-search-tool --contains=unistd.h --mtimeless=3 --sortby=size --autostart EXIT STATUS
The following exit values are returned: 0 Application exited successfully >0 Application exited with failure FILES
The following files are used by this application: /usr/bin/gnome-search-tool Executable for Search for Files ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWgnome-search-tool | +-----------------------------+-----------------------------+ |Interface stability |Volatile | +-----------------------------+-----------------------------+ SEE ALSO
Search for Files Manual Latest version of the GNOME Desktop User Guide for your platform. find(1), gnome-std-options(5) NOTES
Written by Glynn Foster, Sun Microsystems Inc., 2003, 2006. SunOS 5.11 2 Oct 2003 gnome-search-tool(1)
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