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Conditionally log in the BPF program #8

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Jul 8, 2022
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javierhonduco
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with the --verbose-bpf-logging flag:

$ rbperf record --pid `pidof ruby-mri` --verbose-bpf-logging syscall enter_writev

Logs can be read from /sys/kernel/debug/tracing/trace_pipe

with the `--verbose-bpf-logging` flag:

```
$ rbperf record --pid `pidof ruby-mri` --verbose-bpf-logging syscall enter_writev
```

Logs can be read from /sys/kernel/debug/tracing/trace_pipe
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