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docs: performance_metrics: Add example section with sample numbers

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Signed-off-by: Bo Chen <chen.bo@intel.com>
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Bo Chen 2024-07-16 09:51:51 -07:00
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docs/performance_metrics.md
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@ -84,30 +84,36 @@ param is set. The fields included in JSON include:
| date | Date for executing the program |
| results | A list of metrics |
A sample example is below.
## Example
Here is an example of generating metrics data for the boot time using
`pmem`:
```bash
$ ./scripts/dev_cli.sh tests --metrics -- -- --test-filter boot_time_pmem_ms
```
Here is a sample output:
```json
{
"git_human_readable": "v38.0-421-gc67f7997-dirty",
"git_revision": "c67f799717f99efc0a798683520278da25d5f8b9",
"git_commit_date": "Fri Jul 12 00:02:26 2024 +0000",
"date": "Mon Jul 15 17:33:19 CST 2024",
"git_human_readable": "v40.0",
"git_revision": "e9b263975786abbf895469b93dfc00f21ce39a88",
"git_commit_date": "Fri Jun 21 08:40:44 2024 +0000",
"date": "Tue Jul 16 16:35:29 UTC 2024",
"results": [
{
"name": "boot_time_ms",
"mean": xxx,
"std_dev": xxx,
"max": xxx,
"min": xxx
},
{
"name": "block_multi_queue_read_MiBps",
"mean": xxx,
"std_dev": xxx,
"max": xxx,
"min": xxx
},
...
"name": "boot_time_pmem_ms",
"mean": 105.9461,
"std_dev": 7.140993312558129,
"max": 120.01499999999999,
"min": 92.37600000000002
}
]
}
```
Note that the metrics data above is for illustration purpose only and
does not represent the actual performance of Cloud Hypervisor on your
system.