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GPUI currently splits performance instrumentation across several Cargo features and runtime controls. Task profiling, frame-duration histograms, input-latency histograms, and benchmark frame timing therefore follow separate code paths despite measuring related parts of the same UI work. This PR consolidates those systems under the `profiler` Cargo feature. The `bench` feature now enables `profiler`, aggregate frame and input-latency histograms remain active whenever profiling is compiled in, and `set_trace_enabled` controls whether individual task timings and per-frame draw and presentation records are retained. The change also introduces a single per-window profiler that owns the begin and end state for input dispatch, drawing, and presentation, and routes window action-handler timing through the existing aggregate action tracker. Draw and presentation records reuse the same timestamps and computed intervals as the aggregate histograms, avoiding duplicate clock reads. Benchmark trace scopes are reference-counted so overlapping measurements cannot disable tracing while another measurement still needs it. This does not change hang detection directly. It establishes the common profiling foundation needed to correlate slow or delayed frames with actions and foreground or background tasks. Better attribution should make it easier to find and prevent responsiveness regressions. Release Notes: - N/A --------- Co-authored-by: zed-zippy[bot] <234243425+zed-zippy[bot]@users.noreply.github.com> |
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| LICENSE-GPL | ||