Mercurial > octave-nkf
view scripts/java/javamem.m @ 20216:aa36fb998a4d stable
maint: Remove unnecessary whitespace at end of lines.
* libgui/Makefile.am, libgui/graphics/Canvas.cc,
libgui/graphics/EditControl.cc, libgui/graphics/Figure.cc,
libgui/graphics/MouseModeActionGroup.cc, libgui/graphics/annotation-dialog.cc,
libgui/graphics/annotation-dialog.h, libgui/graphics/gl-select.cc,
libgui/graphics/module.mk, libgui/kb-layouts/default.keytab,
libgui/kb-layouts/linux.keytab, libgui/kb-layouts/vt420pc.keytab,
libgui/src/m-editor/find-dialog.cc, libgui/src/main-window.cc,
libgui/src/octave-qt-link.cc, libgui/src/octave-qt-link.h,
libgui/src/shortcut-manager.h, libinterp/corefcn/error.cc,
libinterp/corefcn/find.cc, libinterp/corefcn/gl2ps-renderer.cc,
libinterp/corefcn/graphics.cc, libinterp/corefcn/graphics.in.h,
libinterp/corefcn/octave-link.cc, libinterp/corefcn/quadcc.cc,
libinterp/corefcn/strfns.cc, libinterp/corefcn/syscalls.cc,
libinterp/corefcn/sysdep.cc, libinterp/corefcn/urlwrite.cc,
libinterp/corefcn/utils.cc, libinterp/corefcn/variables.cc,
libinterp/dldfcn/__init_fltk__.cc, libinterp/dldfcn/ccolamd.cc,
libinterp/dldfcn/colamd.cc, libinterp/octave-value/ov-bool-sparse.cc,
libinterp/octave-value/ov-classdef.cc, libinterp/octave-value/ov-re-sparse.cc,
libinterp/octave-value/ov-struct.cc, libinterp/parse-tree/pt-arg-list.cc,
scripts/audio/@audiorecorder/play.m, scripts/audio/wavwrite.m,
scripts/general/cart2sph.m, scripts/geometry/inpolygon.m,
scripts/gui/listdlg.m, scripts/gui/msgbox.m,
scripts/gui/private/message_dialog.m, scripts/help/get_first_help_sentence.m,
scripts/help/lookfor.m, scripts/image/imshow.m, scripts/io/strread.m,
scripts/java/javamem.m, scripts/miscellaneous/dir.m,
scripts/miscellaneous/edit.m, scripts/miscellaneous/genvarname.m,
scripts/miscellaneous/gzip.m, scripts/miscellaneous/private/__w2mpth__.m,
scripts/plot/appearance/annotation.m, scripts/plot/draw/colorbar.m,
scripts/plot/draw/quiver3.m, scripts/plot/util/hold.m,
scripts/plot/util/print.m, scripts/polynomial/mkpp.m,
scripts/polynomial/polyder.m, scripts/polynomial/spline.m,
scripts/polynomial/unmkpp.m, scripts/signal/arma_rnd.m, scripts/sparse/gplot.m,
scripts/statistics/tests/t_test.m,
scripts/statistics/tests/t_test_regression.m, scripts/strings/mat2str.m,
scripts/strings/strsplit.m, scripts/strings/strtrunc.m,
scripts/strings/untabify.m, scripts/testfun/assert.m:
maint: Remove unnecessary whitespace at end of lines.
author | Rik <rik@octave.org> |
---|---|
date | Tue, 12 May 2015 09:22:01 -0700 |
parents | 03b9d17a2d95 |
children |
line wrap: on
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## Copyright (C) 2010, 2013 Philip Nienhuis ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or (at ## your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {Function File} {} javamem () ## @deftypefnx {Function File} {@var{jmem} =} javamem () ## Show the current memory usage of the Java virtual machine (JVM) and run the ## garbage collector. ## ## When no return argument is given the info is printed to the screen. ## Otherwise, the output cell array @var{jmem} contains Maximum, Total, and ## Free memory (in bytes). ## ## All Java-based routines are run in the JVM's shared memory pool, a ## dedicated and separate part of memory claimed by the JVM from your ## computer's total memory (which comprises physical RAM and virtual memory / ## swap space on hard disk). ## ## The maximum allowable memory usage can be configured using the file ## @file{java.opts}. The directory where this file resides is determined by ## the environment variable @w{@env{OCTAVE_JAVA_DIR}}. If unset, the directory ## where @file{javaaddpath.m} resides is used instead (typically ## @file{@w{@env{OCTAVE_HOME}}/share/octave/@w{@env{OCTAVE_VERSION}}/m/java/}). ## ## @file{java.opts} is a plain text file with one option per line. The default ## initial memory size and default maximum memory size (which are both system ## dependent) can be overridden like so: ## ## @nospell{-Xms64m} ## ## @nospell{-Xmx512m} ## ## (in megabytes in this example). ## You can adapt these values to your own requirements if your system has ## limited available physical memory or if you get Java memory errors. ## ## @qcode{"Total memory"} is what the operating system has currently assigned ## to the JVM and depends on actual and active memory usage. ## @qcode{"Free memory"} is self-explanatory. During operation of Java-based ## Octave functions the amount of Total and Free memory will vary, due to ## Java's own cleaning up and your operating system's memory management. ## @end deftypefn ## Author: Philip Nienhuis ## Created: 2010-03-25 ## Updates: ## 2010-03-26 Changed name to javamem & indentation to double spaces ## 2010-08-25 Corrected text on java memory assignments ## 2010-09-05 Further overhauled help text function jmem = javamem () rt = javaMethod ("getRuntime", "java.lang.Runtime"); rt.gc; jvmem = cell (3, 1); jvmem{1} = rt.maxMemory (); jvmem{2} = rt.totalMemory (); jvmem{3} = rt.freeMemory (); if (nargout == 0) printf ("\nJava virtual machine (JVM) memory info:\n"); printf ("Maximum available memory: %5d MiB;\n", jvmem{1} / 1024 / 1024); printf (" (...running garbage collector...)\n"); printf ("OK, current status:\n"); printf ("Total memory in virtual machine: %5d MiB;\n", jvmem{2} / 1024 / 1024); printf ("Free memory in virtual machine: %5d MiB;\n", jvmem{3} / 1024 / 1024); printf ("%d CPUs available.\n", rt.availableProcessors ()); else jmem = jvmem; endif endfunction