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Update CPU profiling using perf

Alessio Podda
2024-12-02 07:43:12 +00:00
parent 3b41c4ac7e
commit 94d28d9a64
1 changed files with 8 additions and 1 deletions
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7
CPU-profiling-using-perf.md

@@ -15,6 +15,13 @@ sudo dnf install perf flamegraph
Replace calls to `inferno` with `flamegraph.pl` if necessary. Replace calls to `inferno` with `flamegraph.pl` if necessary.
1. *Optional* Enable profiling without `root` access:
```sh
echo -1 | sudo tee /proc/sys/kernel/perf_event_paranoid
echo 0 | sudo tee /proc/sys/kernel/nmi_watchdog
```
1. Ensure you have compiled `named` with debug symbols. Optionally, set up a prefix 1. Ensure you have compiled `named` with debug symbols. Optionally, set up a prefix
```sh ```sh