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1 # benchmark | 1 # benchmark |
2 | 2 |
3 This application connects to another mojo application, collects traces during | 3 This application connects to another mojo application, collects traces during |
4 indicated period of time and computes a number of results based on the collected | 4 indicated period of time and computes a number of results based on the collected |
5 traces. It can be used to measure performance of a mojo app, provided that the | 5 traces. It can be used to measure performance of a mojo app, provided that the |
6 app being benchmarked participates in the [tracing | 6 app being benchmarked participates in the [tracing |
7 ecosystem](../../mojo/services/tracing/public/interfaces/tracing.mojom). | 7 ecosystem](../../mojo/services/tracing/interfaces/tracing.mojom). |
8 | 8 |
9 ## Arguments | 9 ## Arguments |
10 | 10 |
11 The benchmarking app **requires** the following arguments: | 11 The benchmarking app **requires** the following arguments: |
12 | 12 |
13 - `--app=<app_url>` - url of the application to be benchmarked | 13 - `--app=<app_url>` - url of the application to be benchmarked |
14 - `--duration=<duration_seconds>` - duration of the benchmark in seconds | 14 - `--duration=<duration_seconds>` - duration of the benchmark in seconds |
15 | 15 |
16 The following arguments are **optional**: | 16 The following arguments are **optional**: |
17 | 17 |
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35 of the first event happens after the first occurence of the second event. | 35 of the first event happens after the first occurence of the second event. |
36 - `avg_duration/<trace_event_category>/<trace_event_name>` - measures average | 36 - `avg_duration/<trace_event_category>/<trace_event_name>` - measures average |
37 duration of all events named `trace_event_name` in category | 37 duration of all events named `trace_event_name` in category |
38 `trace_event_category`. | 38 `trace_event_category`. |
39 | 39 |
40 ## Runner script | 40 ## Runner script |
41 | 41 |
42 Devtools offers [a helper script](../../mojo/devtools/common/mojo_benchmark) | 42 Devtools offers [a helper script](../../mojo/devtools/common/mojo_benchmark) |
43 allowing to run a list of benchmarks in controlled caching conditions, both | 43 allowing to run a list of benchmarks in controlled caching conditions, both |
44 on **Android** and **Linux**. | 44 on **Android** and **Linux**. |
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