Commit 751aa78338c39313dffbe61ebff55cf5411f366c

loic <loic @x37-l…top.(none)>
Tue Feb 02 13:49:41 CET 2010

Tree SHA1: a36e77d
Parent SHA1: 1802441 (add debug traces and gc call api for the generational gc call tool)
raw diff | raw patch

add a test program that allocate objects

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136	136	<sequence description="Launch Sweep & Cleanup">
137	137	<argument argLabel="sweep"/>
138	138	</sequence>
	139	<sequence description="alloc memory">
	140	<option argLabel="alloc" longName="alloc"/>
	141	<argument argLabel="nbObjects"/>
	142	</sequence>
139	143	<option argLabel="show" longName="show" description="Show heap debug flags"/>
140	144	</syntax>
141	145	<syntax alias="halt" description="Shutdown all services and devices so that the computer can be powered off"/>


21	21	package org.jnode.command.system;
22	22
23	23	import java.io.PrintWriter;
	24	import java.util.ArrayList;
24	25
25	26	import org.jnode.shell.AbstractCommand;
26	27	import org.jnode.shell.syntax.Argument;
27	28	import org.jnode.shell.syntax.EnumArgument;
28	29	import org.jnode.shell.syntax.FlagArgument;
	30	import org.jnode.shell.syntax.IntegerArgument;
29	31	import org.jnode.shell.syntax.StringArgument;
30	32	import org.jnode.util.NumberUtils;
31	33	import org.jnode.vm.Vm;
…	…
87	87	private final StringArgument argMajorGc;
88	88	private final StringArgument argMinorGc;
89	89	private final StringArgument argSweep;
	90	private final FlagArgument argAlloc;
	91	private final IntegerArgument argAllocNbObjects;
90	92
91	93	private final PrintWriter out = getOutput().getPrintWriter();
92	94
…	…
101	101	argMajorGc = new StringArgument("major", Argument.OPTIONAL);
102	102	argMinorGc = new StringArgument("major", Argument.OPTIONAL);
103	103	argSweep = new StringArgument("major", Argument.OPTIONAL);
	104	argAlloc = new FlagArgument("show", Argument.OPTIONAL, help_show);
	105	argAllocNbObjects = new IntegerArgument("show", Argument.OPTIONAL, help_show);
104	106	registerArguments(argDebugFlags, argClear, argSet, argShow, argMajorGc, argMinorGc,
105		argSweep);
	107	argSweep, argAlloc, argAllocNbObjects);
106	108	}
107	109
108	110	public static void main(String[] args) throws Exception {
…	…
123	123	Vm.getHeapManager().setHeapFlags(flags);
124	124	} else if (argShow.isSet()) {
125	125	showFlags(Vm.getHeapManager().getHeapFlags(), out);
126		} else {
	126	} else if (argAlloc.isSet() && argAllocNbObjects.isSet()) {
	127	allocObjects(argAllocNbObjects.getValue());
	128	}else {
127	129	final Runtime rt = Runtime.getRuntime();
128	130	out.format(fmt_out, str_mem_size, NumberUtils.toBinaryByte(rt.totalMemory()));
129	131	out.format(fmt_out, str_mem_free, NumberUtils.toBinaryByte(rt.freeMemory()));
…	…
152	152	}
153	153	}
154	154
155		private void gc() {
	155	private void allocObjects(Integer nbObjectsToAllocate) {
	156	int listSize = 42;
	157	ArrayList<Object> l = null;
	158	for (int i = 0; i < nbObjectsToAllocate; i++) {
	159	l = new ArrayList<Object>(listSize);
	160	for (int j = 0; j < listSize; j++) {
	161	l.add(new Object());
	162	}
	163	}
	164	}
	165
	166	private void gc() {
156	167	minorGc();
157	168	majorGc();
158	169	sweep();

Commit 751aa78338c39313dffbe61ebff55cf5411f366c

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