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docs: performance_metrics: Add example section with sample numbers
Signed-off-by: Bo Chen <chen.bo@intel.com>
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@ -84,30 +84,36 @@ param is set. The fields included in JSON include:
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| date | Date for executing the program |
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| results | A list of metrics |
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A sample example is below.
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## Example
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Here is an example of generating metrics data for the boot time using
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`pmem`:
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```bash
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$ ./scripts/dev_cli.sh tests --metrics -- -- --test-filter boot_time_pmem_ms
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```
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Here is a sample output:
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```json
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{
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"git_human_readable": "v38.0-421-gc67f7997-dirty",
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"git_revision": "c67f799717f99efc0a798683520278da25d5f8b9",
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"git_commit_date": "Fri Jul 12 00:02:26 2024 +0000",
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"date": "Mon Jul 15 17:33:19 CST 2024",
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"git_human_readable": "v40.0",
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"git_revision": "e9b263975786abbf895469b93dfc00f21ce39a88",
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"git_commit_date": "Fri Jun 21 08:40:44 2024 +0000",
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"date": "Tue Jul 16 16:35:29 UTC 2024",
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"results": [
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{
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"name": "boot_time_ms",
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"mean": xxx,
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"std_dev": xxx,
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"max": xxx,
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"min": xxx
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},
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{
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"name": "block_multi_queue_read_MiBps",
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"mean": xxx,
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"std_dev": xxx,
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"max": xxx,
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"min": xxx
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},
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...
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"name": "boot_time_pmem_ms",
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"mean": 105.9461,
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"std_dev": 7.140993312558129,
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"max": 120.01499999999999,
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"min": 92.37600000000002
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}
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]
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}
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```
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Note that the metrics data above is for illustration purpose only and
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does not represent the actual performance of Cloud Hypervisor on your
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system.
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