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1 | /********************************************************************** |
2 | * Copyright (c) 2014 Ericsson, École Polytechnique de Montréal | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Matthew Khouzam - Initial API and implementation | |
11 | * Geneviève Bastien - Memory is per thread and only total is kept | |
12 | **********************************************************************/ | |
13 | ||
9bc60be7 | 14 | package org.eclipse.tracecompass.internal.lttng2.ust.core.memoryusage; |
2237fe8a | 15 | |
d0c7e4ba AM |
16 | import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; |
17 | ||
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18 | import java.util.HashMap; |
19 | import java.util.Map; | |
20 | ||
d0c7e4ba | 21 | import org.eclipse.jdt.annotation.NonNull; |
9bc60be7 | 22 | import org.eclipse.tracecompass.lttng2.ust.core.trace.LttngUstTrace; |
d0c7e4ba | 23 | import org.eclipse.tracecompass.statesystem.core.ITmfStateSystemBuilder; |
e894a508 AM |
24 | import org.eclipse.tracecompass.statesystem.core.exceptions.AttributeNotFoundException; |
25 | import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException; | |
26 | import org.eclipse.tracecompass.statesystem.core.exceptions.TimeRangeException; | |
27 | import org.eclipse.tracecompass.statesystem.core.statevalue.ITmfStateValue; | |
28 | import org.eclipse.tracecompass.statesystem.core.statevalue.TmfStateValue; | |
2bdf0193 AM |
29 | import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; |
30 | import org.eclipse.tracecompass.tmf.core.event.ITmfEventField; | |
31 | import org.eclipse.tracecompass.tmf.core.statesystem.AbstractTmfStateProvider; | |
32 | import org.eclipse.tracecompass.tmf.core.statesystem.ITmfStateProvider; | |
9722e5d7 | 33 | import org.eclipse.tracecompass.tmf.ctf.core.event.CtfTmfEvent; |
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34 | |
35 | /** | |
36 | * State provider to track the memory of the threads using the UST libc wrapper | |
37 | * memory events. | |
38 | * | |
39 | * @author Matthew Khouzam | |
40 | * @author Geneviève Bastien | |
41 | */ | |
42 | public class MemoryUsageStateProvider extends AbstractTmfStateProvider { | |
43 | ||
44 | /* Version of this state provider */ | |
45 | private static final int VERSION = 1; | |
46 | ||
47 | /* Maps a pointer to a memory zone to the size of the memory */ | |
48 | private final Map<Long, Long> fMemory = new HashMap<>(); | |
49 | ||
50 | private static final Long MINUS_ONE = Long.valueOf(-1); | |
51 | private static final Long ZERO = Long.valueOf(0); | |
52 | private static final String EMPTY_STRING = ""; //$NON-NLS-1$ | |
53 | ||
54 | /** | |
55 | * Constructor | |
56 | * | |
57 | * @param trace | |
58 | * trace | |
59 | */ | |
d0c7e4ba | 60 | public MemoryUsageStateProvider(@NonNull LttngUstTrace trace) { |
2237fe8a GB |
61 | super(trace, CtfTmfEvent.class, "Ust:Memory"); //$NON-NLS-1$ |
62 | } | |
63 | ||
64 | @Override | |
65 | protected void eventHandle(ITmfEvent event) { | |
66 | String name = event.getType().getName(); | |
67 | switch (name) { | |
68 | case UstMemoryStrings.MALLOC: { | |
69 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
70 | if (ZERO.equals(ptr)) { | |
71 | return; | |
72 | } | |
73 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
74 | setMem(event, ptr, size); | |
75 | } | |
76 | break; | |
77 | case UstMemoryStrings.FREE: { | |
78 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
79 | if (ZERO.equals(ptr)) { | |
80 | return; | |
81 | } | |
82 | setMem(event, ptr, ZERO); | |
83 | } | |
84 | break; | |
85 | case UstMemoryStrings.CALLOC: { | |
86 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
87 | if (ZERO.equals(ptr)) { | |
88 | return; | |
89 | } | |
90 | Long nmemb = (Long) event.getContent().getField(UstMemoryStrings.FIELD_NMEMB).getValue(); | |
91 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
92 | setMem(event, ptr, size * nmemb); | |
93 | } | |
94 | break; | |
95 | case UstMemoryStrings.REALLOC: { | |
96 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
97 | if (ZERO.equals(ptr)) { | |
98 | return; | |
99 | } | |
100 | Long newPtr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_INPTR).getValue(); | |
101 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
102 | setMem(event, ptr, ZERO); | |
103 | setMem(event, newPtr, size); | |
104 | } | |
105 | break; | |
106 | case UstMemoryStrings.MEMALIGN: { | |
107 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
108 | if (ZERO.equals(ptr)) { | |
109 | return; | |
110 | } | |
111 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
112 | setMem(event, ptr, size); | |
113 | } | |
114 | break; | |
115 | case UstMemoryStrings.POSIX_MEMALIGN: { | |
116 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_OUTPTR).getValue(); | |
117 | if (ZERO.equals(ptr)) { | |
118 | return; | |
119 | } | |
120 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
121 | setMem(event, ptr, size); | |
122 | } | |
123 | break; | |
124 | default: | |
125 | break; | |
126 | } | |
127 | ||
128 | } | |
129 | ||
130 | @Override | |
131 | public ITmfStateProvider getNewInstance() { | |
132 | return new MemoryUsageStateProvider(getTrace()); | |
133 | } | |
134 | ||
135 | @Override | |
136 | public LttngUstTrace getTrace() { | |
137 | return (LttngUstTrace) super.getTrace(); | |
138 | } | |
139 | ||
140 | @Override | |
141 | public int getVersion() { | |
142 | return VERSION; | |
143 | } | |
144 | ||
145 | private static Long getVtid(ITmfEvent event) { | |
146 | ITmfEventField field = event.getContent().getField(UstMemoryStrings.CONTEXT_VTID); | |
147 | if (field == null) { | |
148 | return MINUS_ONE; | |
149 | } | |
150 | return (Long) field.getValue(); | |
151 | } | |
152 | ||
153 | private static String getProcname(ITmfEvent event) { | |
154 | ITmfEventField field = event.getContent().getField(UstMemoryStrings.CONTEXT_PROCNAME); | |
155 | if (field == null) { | |
156 | return EMPTY_STRING; | |
157 | } | |
158 | return (String) field.getValue(); | |
159 | } | |
160 | ||
161 | private void setMem(ITmfEvent event, Long ptr, Long size) { | |
d0c7e4ba | 162 | ITmfStateSystemBuilder ss = checkNotNull(getStateSystemBuilder()); |
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163 | long ts = event.getTimestamp().getValue(); |
164 | Long tid = getVtid(event); | |
165 | ||
166 | Long memoryDiff = size; | |
167 | /* Size is 0, it means it was deleted */ | |
168 | if (ZERO.equals(size)) { | |
169 | Long memSize = fMemory.remove(ptr); | |
170 | if (memSize == null) { | |
171 | return; | |
172 | } | |
173 | memoryDiff = -memSize; | |
174 | } else { | |
175 | fMemory.put(ptr, size); | |
176 | } | |
177 | try { | |
178 | int tidQuark = ss.getQuarkAbsoluteAndAdd(tid.toString()); | |
179 | int tidMemQuark = ss.getQuarkRelativeAndAdd(tidQuark, UstMemoryStrings.UST_MEMORY_MEMORY_ATTRIBUTE); | |
180 | ||
181 | ITmfStateValue prevMem = ss.queryOngoingState(tidMemQuark); | |
182 | /* First time we set this value */ | |
183 | if (prevMem.isNull()) { | |
184 | int procNameQuark = ss.getQuarkRelativeAndAdd(tidQuark, UstMemoryStrings.UST_MEMORY_PROCNAME_ATTRIBUTE); | |
185 | String procName = getProcname(event); | |
186 | /* | |
187 | * No tid/procname for the event for the event, added to a | |
188 | * 'others' thread | |
189 | */ | |
190 | if (tid.equals(MINUS_ONE)) { | |
191 | procName = UstMemoryStrings.OTHERS; | |
192 | } | |
193 | ss.modifyAttribute(ts, TmfStateValue.newValueString(procName), procNameQuark); | |
194 | prevMem = TmfStateValue.newValueLong(0); | |
195 | } | |
196 | ||
197 | long prevMemValue = prevMem.unboxLong(); | |
198 | prevMemValue += memoryDiff.longValue(); | |
199 | ss.modifyAttribute(ts, TmfStateValue.newValueLong(prevMemValue), tidMemQuark); | |
200 | } catch (AttributeNotFoundException | TimeRangeException | StateValueTypeException e) { | |
201 | throw new IllegalStateException(e); | |
202 | } | |
203 | } | |
204 | ||
205 | } |