Wprof is a low-overhead BPF-based tracer and profiler with the focus on holistic system-level performance data capture and analysis. It employs powerful and flexible model of split data capture vs analysis/visualization phases, which allows to iterate on captured performance data with exactly the same original data. Wprof generates Perfetto-based traces and provides many options for filtering and narrowing down exact subset of data to be visualized.
$ sudo dnf -y install elfutils-devel zlib-devel
$ # if you don't have Rust toolchain installed just yet
$ # curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
$ git clone https://github.com/anakryiko/wprof.git
$ git submodule update --init --recursive
$ cd wprof/src
$ make -j$(nproc)Start with:
$ sudo ./wprof -d1000 -T trace.pb
You'll end up with 1 (one) second trace data stored in wprof.data and
corresponding Perfetto trace in trace.pb. You can reuse that data using
replay mode to modify Perfetto trace parameters. Check --help for more
details.
$ ./wprof -R -d500 -T trace-500ms.pb
wprof supports user-defined probes for capturing custom events alongside its built-in tracing. Supports uprobes, kprobes, USDT, tracepoints, raw tracepoints, and BPF program probes with argument capture, stack traces, and name formatting.
See UTRACE.md for full documentation.