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Issue 1617703002: [Docs] Host MemoryInfra images on GCS (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 11 months ago
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1 # MemoryInfra 1 # MemoryInfra
2 2
3 MemoryInfra is a timeline-based profiling system integrated in chrome://tracing. 3 MemoryInfra is a timeline-based profiling system integrated in chrome://tracing.
4 It aims at creating Chrome-scale memory measurement tooling so that on any 4 It aims at creating Chrome-scale memory measurement tooling so that on any
5 Chrome in the world --- desktop, mobile, Chrome OS or any other --- with the 5 Chrome in the world --- desktop, mobile, Chrome OS or any other --- with the
6 click of a button you can understand where memory is being used in your system. 6 click of a button you can understand where memory is being used in your system.
7 7
8 [TOC] 8 [TOC]
9 9
10 ## Getting Started 10 ## Getting Started
11 11
12 1. Get a bleeding-edge or tip-of-tree build of Chrome. 12 1. Get a bleeding-edge or tip-of-tree build of Chrome.
13 13
14 2. [Record a trace as usual][record-trace]: open [chrome://tracing][tracing] 14 2. [Record a trace as usual][record-trace]: open [chrome://tracing][tracing]
15 on Desktop Chrome or [chrome://inspect?tracing][inspect-tracing] to trace 15 on Desktop Chrome or [chrome://inspect?tracing][inspect-tracing] to trace
16 Chrome for Android. 16 Chrome for Android.
17 17
18 3. Make sure to enable the **memory-infra** category on the right. 18 3. Make sure to enable the **memory-infra** category on the right.
19 19
20 ![Tick the memory-infra checkbox when recording a trace.][memory-infra-box ] 20 ![Tick the memory-infra checkbox when recording a trace.][memory-infra-box ]
21 21
22 4. For now, some subsystems only work if Chrome is started with the 22 4. For now, some subsystems only work if Chrome is started with the
23 `--no-sandbox` flag. 23 `--no-sandbox` flag.
24 <!-- TODO(primiano) TODO(ssid): https://crbug.com/461788 --> 24 <!-- TODO(primiano) TODO(ssid): https://crbug.com/461788 -->
25 25
26 [record-trace]: https://sites.google.com/a/chromium.org/dev/developers/how-t os/trace-event-profiling-tool/recording-tracing-runs 26 [record-trace]: https://sites.google.com/a/chromium.org/dev/developers/how-t os/trace-event-profiling-tool/recording-tracing-runs
27 [tracing]: chrome://tracing 27 [tracing]: chrome://tracing
28 [inspect-tracing]: chrome://inspect?tracing 28 [inspect-tracing]: chrome://inspect?tracing
29 [memory-infra-box]: https://drive.google.com/uc?export=view&id=0Bx14iZPZRgb5RHBJ M1llY1g4cDg 29 [memory-infra-box]: https://storage.googleapis.com/chromium-docs.appspot.com/1c6 d1886584e7cc6ffed0d377f32023f8da53e02
30 30
31 ![Timeline View and Analysis View][tracing-views] 31 ![Timeline View and Analysis View][tracing-views]
32 32
33 After recording a trace, you will see the **timeline view**. Timeline view 33 After recording a trace, you will see the **timeline view**. Timeline view
34 shows: 34 shows:
35 35
36 * Total resident memory grouped by process (at the top). 36 * Total resident memory grouped by process (at the top).
37 * Total resident memory grouped by subsystem (at the top). 37 * Total resident memory grouped by subsystem (at the top).
38 * Allocated memory per subsystem for every process. 38 * Allocated memory per subsystem for every process.
39 39
40 Click one of the ![M][m-blue] dots to bring up the **analysis view**. Click 40 Click one of the ![M][m-blue] dots to bring up the **analysis view**. Click
41 on a cell in analysis view to reveal more information about its subsystem. 41 on a cell in analysis view to reveal more information about its subsystem.
42 PartitionAlloc for instance, has more details about its partitions. 42 PartitionAlloc for instance, has more details about its partitions.
43 43
44 ![Component details for PartitionAlloc][partalloc-details] 44 ![Component details for PartitionAlloc][partalloc-details]
45 45
46 The purple ![M][m-purple] dots represent heavy dumps. In these dumps, components 46 The purple ![M][m-purple] dots represent heavy dumps. In these dumps, components
47 can provide more details than in the regular dumps. The full details of the 47 can provide more details than in the regular dumps. The full details of the
48 MemoryInfra UI are explained in its [design doc][mi-ui-doc]. 48 MemoryInfra UI are explained in its [design doc][mi-ui-doc].
49 49
50 [tracing-views]: https://drive.google.com/uc?export=view&id=0Bx14iZPZRgb5dFV YV2dtZmNxQjg 50 [tracing-views]: https://storage.googleapis.com/chromium-docs.appspot.com/db 12015bd262385f0f8bd69133330978a99da1ca
51 [m-blue]: https://drive.google.com/uc?export=view&id=0Bx14iZPZRgb5b1Z TcWY4em42a0U 51 [m-blue]: https://storage.googleapis.com/chromium-docs.appspot.com/b6 0f342e38ff3a3767bbe4c8640d96a2d8bc864b
52 [partalloc-details]: https://drive.google.com/uc?export=view&id=0Bx14iZPZRgb5eVp PR09yTW9Ebjg 52 [partalloc-details]: https://storage.googleapis.com/chromium-docs.appspot.com/02 eade61d57c83f8ef8227965513456555fc3324
53 [m-purple]: https://drive.google.com/uc?export=view&id=0Bx14iZPZRgb5RFF Gc0xZZEJWVFk 53 [m-purple]: https://storage.googleapis.com/chromium-docs.appspot.com/d7 bdf4d16204c293688be2e5a0bcb2bf463dbbc3
54 [mi-ui-doc]: https://docs.google.com/document/d/1b5BSBEd1oB-3zj_CBAQWiQZ 0cmI0HmjmXG-5iNveLqw/edit 54 [mi-ui-doc]: https://docs.google.com/document/d/1b5BSBEd1oB-3zj_CBAQWiQZ 0cmI0HmjmXG-5iNveLqw/edit
55 55
56 ## Columns 56 ## Columns
57 57
58 **Columns in blue** reflect the amount of actual physical memory used by the 58 **Columns in blue** reflect the amount of actual physical memory used by the
59 process. This is what exerts memory pressure on the system. 59 process. This is what exerts memory pressure on the system.
60 60
61 * **Total Resident**: (TODO: document this). 61 * **Total Resident**: (TODO: document this).
62 * **Peak Total Resident**: (TODO: document this). 62 * **Peak Total Resident**: (TODO: document this).
63 * **PSS**: (TODO: document this). 63 * **PSS**: (TODO: document this).
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159 159
160 Chrome-side design docs: 160 Chrome-side design docs:
161 161
162 <iframe width="100%" height="300px" src="https://docs.google.com/a/google.com/em beddedfolderview?id=0B3KuDeqD-lVJfndSa2dleUQtMnZDeWpPZk1JV0QtbVM5STkwWms4YThzQ0p GTmU1QU9kNVk"> 162 <iframe width="100%" height="300px" src="https://docs.google.com/a/google.com/em beddedfolderview?id=0B3KuDeqD-lVJfndSa2dleUQtMnZDeWpPZk1JV0QtbVM5STkwWms4YThzQ0p GTmU1QU9kNVk">
163 </iframe> 163 </iframe>
164 164
165 Catapult-side design docs: 165 Catapult-side design docs:
166 166
167 <iframe width="100%" height="300px" src="https://docs.google.com/a/google.com/em beddedfolderview?id=0B3KuDeqD-lVJfm10bXd5YmRNWUpKOElOWS0xdU1tMmV1S3F4aHo0ZDJLTmt GRy1qVnQtVWM"> 167 <iframe width="100%" height="300px" src="https://docs.google.com/a/google.com/em beddedfolderview?id=0B3KuDeqD-lVJfm10bXd5YmRNWUpKOElOWS0xdU1tMmV1S3F4aHo0ZDJLTmt GRy1qVnQtVWM">
168 </iframe> 168 </iframe>
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