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2237fe8a | 1 | /********************************************************************** |
ed902a2b | 2 | * Copyright (c) 2014, 2015 Ericsson, École Polytechnique de Montréal |
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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; | |
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33 | |
34 | /** | |
35 | * State provider to track the memory of the threads using the UST libc wrapper | |
36 | * memory events. | |
37 | * | |
38 | * @author Matthew Khouzam | |
39 | * @author Geneviève Bastien | |
40 | */ | |
41 | public class MemoryUsageStateProvider extends AbstractTmfStateProvider { | |
42 | ||
43 | /* Version of this state provider */ | |
44 | private static final int VERSION = 1; | |
45 | ||
46 | /* Maps a pointer to a memory zone to the size of the memory */ | |
47 | private final Map<Long, Long> fMemory = new HashMap<>(); | |
48 | ||
49 | private static final Long MINUS_ONE = Long.valueOf(-1); | |
50 | private static final Long ZERO = Long.valueOf(0); | |
51 | private static final String EMPTY_STRING = ""; //$NON-NLS-1$ | |
52 | ||
53 | /** | |
54 | * Constructor | |
55 | * | |
56 | * @param trace | |
57 | * trace | |
58 | */ | |
d0c7e4ba | 59 | public MemoryUsageStateProvider(@NonNull LttngUstTrace trace) { |
e2bcc8a5 | 60 | super(trace, "Ust:Memory"); //$NON-NLS-1$ |
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61 | } |
62 | ||
63 | @Override | |
64 | protected void eventHandle(ITmfEvent event) { | |
578716e6 | 65 | String name = event.getName(); |
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66 | switch (name) { |
67 | case UstMemoryStrings.MALLOC: { | |
68 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
69 | if (ZERO.equals(ptr)) { | |
70 | return; | |
71 | } | |
72 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
73 | setMem(event, ptr, size); | |
74 | } | |
75 | break; | |
76 | case UstMemoryStrings.FREE: { | |
77 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
78 | if (ZERO.equals(ptr)) { | |
79 | return; | |
80 | } | |
81 | setMem(event, ptr, ZERO); | |
82 | } | |
83 | break; | |
84 | case UstMemoryStrings.CALLOC: { | |
85 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
86 | if (ZERO.equals(ptr)) { | |
87 | return; | |
88 | } | |
89 | Long nmemb = (Long) event.getContent().getField(UstMemoryStrings.FIELD_NMEMB).getValue(); | |
90 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
91 | setMem(event, ptr, size * nmemb); | |
92 | } | |
93 | break; | |
94 | case UstMemoryStrings.REALLOC: { | |
95 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
96 | if (ZERO.equals(ptr)) { | |
97 | return; | |
98 | } | |
99 | Long newPtr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_INPTR).getValue(); | |
100 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
101 | setMem(event, ptr, ZERO); | |
102 | setMem(event, newPtr, size); | |
103 | } | |
104 | break; | |
105 | case UstMemoryStrings.MEMALIGN: { | |
106 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_PTR).getValue(); | |
107 | if (ZERO.equals(ptr)) { | |
108 | return; | |
109 | } | |
110 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
111 | setMem(event, ptr, size); | |
112 | } | |
113 | break; | |
114 | case UstMemoryStrings.POSIX_MEMALIGN: { | |
115 | Long ptr = (Long) event.getContent().getField(UstMemoryStrings.FIELD_OUTPTR).getValue(); | |
116 | if (ZERO.equals(ptr)) { | |
117 | return; | |
118 | } | |
119 | Long size = (Long) event.getContent().getField(UstMemoryStrings.FIELD_SIZE).getValue(); | |
120 | setMem(event, ptr, size); | |
121 | } | |
122 | break; | |
123 | default: | |
124 | break; | |
125 | } | |
126 | ||
127 | } | |
128 | ||
129 | @Override | |
130 | public ITmfStateProvider getNewInstance() { | |
131 | return new MemoryUsageStateProvider(getTrace()); | |
132 | } | |
133 | ||
134 | @Override | |
135 | public LttngUstTrace getTrace() { | |
136 | return (LttngUstTrace) super.getTrace(); | |
137 | } | |
138 | ||
139 | @Override | |
140 | public int getVersion() { | |
141 | return VERSION; | |
142 | } | |
143 | ||
144 | private static Long getVtid(ITmfEvent event) { | |
145 | ITmfEventField field = event.getContent().getField(UstMemoryStrings.CONTEXT_VTID); | |
146 | if (field == null) { | |
147 | return MINUS_ONE; | |
148 | } | |
149 | return (Long) field.getValue(); | |
150 | } | |
151 | ||
152 | private static String getProcname(ITmfEvent event) { | |
153 | ITmfEventField field = event.getContent().getField(UstMemoryStrings.CONTEXT_PROCNAME); | |
154 | if (field == null) { | |
155 | return EMPTY_STRING; | |
156 | } | |
157 | return (String) field.getValue(); | |
158 | } | |
159 | ||
160 | private void setMem(ITmfEvent event, Long ptr, Long size) { | |
d0c7e4ba | 161 | ITmfStateSystemBuilder ss = checkNotNull(getStateSystemBuilder()); |
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162 | long ts = event.getTimestamp().getValue(); |
163 | Long tid = getVtid(event); | |
164 | ||
165 | Long memoryDiff = size; | |
166 | /* Size is 0, it means it was deleted */ | |
167 | if (ZERO.equals(size)) { | |
168 | Long memSize = fMemory.remove(ptr); | |
169 | if (memSize == null) { | |
170 | return; | |
171 | } | |
172 | memoryDiff = -memSize; | |
173 | } else { | |
174 | fMemory.put(ptr, size); | |
175 | } | |
176 | try { | |
177 | int tidQuark = ss.getQuarkAbsoluteAndAdd(tid.toString()); | |
178 | int tidMemQuark = ss.getQuarkRelativeAndAdd(tidQuark, UstMemoryStrings.UST_MEMORY_MEMORY_ATTRIBUTE); | |
179 | ||
180 | ITmfStateValue prevMem = ss.queryOngoingState(tidMemQuark); | |
181 | /* First time we set this value */ | |
182 | if (prevMem.isNull()) { | |
183 | int procNameQuark = ss.getQuarkRelativeAndAdd(tidQuark, UstMemoryStrings.UST_MEMORY_PROCNAME_ATTRIBUTE); | |
184 | String procName = getProcname(event); | |
185 | /* | |
186 | * No tid/procname for the event for the event, added to a | |
187 | * 'others' thread | |
188 | */ | |
189 | if (tid.equals(MINUS_ONE)) { | |
190 | procName = UstMemoryStrings.OTHERS; | |
191 | } | |
192 | ss.modifyAttribute(ts, TmfStateValue.newValueString(procName), procNameQuark); | |
193 | prevMem = TmfStateValue.newValueLong(0); | |
194 | } | |
195 | ||
196 | long prevMemValue = prevMem.unboxLong(); | |
197 | prevMemValue += memoryDiff.longValue(); | |
198 | ss.modifyAttribute(ts, TmfStateValue.newValueLong(prevMemValue), tidMemQuark); | |
199 | } catch (AttributeNotFoundException | TimeRangeException | StateValueTypeException e) { | |
200 | throw new IllegalStateException(e); | |
201 | } | |
202 | } | |
203 | ||
204 | } |