Environment Variables


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Environment Variables

Hi All,

I need to understand following three environment variables and their usages in HP Unix.

Code:
_M_ARENA_OPTS
_M_CACHE_OPTS
PTHREAD_SCOPE_SYSTEM

How does these environment variables influence multi threaded applciation and how do we decide the value of these variables? Is there any relation between number of threads of the application and the values assigned to the variables?

Thanks
Angshuman
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Perl::Critic::Policy::Variables::ProhibitUnusedVariablesUser Contributed Perl DocumentaPerl::Critic::Policy::Variables::ProhibitUnusedVariables(3)

NAME
Perl::Critic::Policy::Variables::ProhibitUnusedVariables - Don't ask for storage you don't need. AFFILIATION
This Policy is part of the core Perl::Critic distribution. DESCRIPTION
Unused variables clutter code and require the reader to do mental bookkeeping to figure out if the variable is actually used or not. At present, this Policy is very limited in order to ensure that there aren't any false positives. Hopefully, this will become more sophisticated soon. Right now, this only looks for simply declared, uninitialized lexical variables. my $x; # not ok, assuming no other appearances. my @y = (); # ok, not handled yet. our $z; # ok, global. local $w; # ok, global. This module is very dumb: it does no scoping detection, i.e. if the same variable name is used in two different locations, even if they aren't the same variable, this Policy won't complain. Have to start somewhere. CONFIGURATION
This Policy is not configurable except for the standard options. AUTHOR
Elliot Shank "<perl@galumph.com>" COPYRIGHT
Copyright (c) 2008-2011 Elliot Shank. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module. perl v5.16.3 2014-06-09 Perl::Critic::Policy::Variables::ProhibitUnusedVariables(3)

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