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Introduce a small DD benchmark that burns CPU by streaming /dev/urandom into /dev/null, giving a reliable workload for perf sampling and flamegraph generation (unlike sleep). Make PerfReportWrap skip flamegraph generation when perf produces no folded stack counts, emitting a warning instead of failing. Refactor the flamegraph test into a suite with two sub-campaigns: sleep (no samples leads to graceful skip) and dd (real samples generates a SVG flamegraph), and add a dedicated fzf-based campaign for interactively browsing dd runs. Signed-off-by: Antonio Paolillo <apaolill@gmail.com>
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Feb 25, 2026
Introduce a small DD benchmark that burns CPU by streaming /dev/urandom into /dev/null, giving a reliable workload for perf sampling and flamegraph generation (unlike sleep). Make PerfReportWrap skip flamegraph generation when perf produces no folded stack counts, emitting a warning instead of failing. Refactor the flamegraph test into a suite with two sub-campaigns: sleep (no samples leads to graceful skip) and dd (real samples generates a SVG flamegraph), and add a dedicated fzf-based campaign for interactively browsing dd runs. Signed-off-by: Antonio Paolillo <apaolill@gmail.com>
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Introduce a small DD benchmark that burns CPU by streaming /dev/urandom into /dev/null, giving a reliable workload for perf sampling and flamegraph generation (unlike sleep).
Make PerfReportWrap skip flamegraph generation when perf produces no folded stack counts, emitting a warning instead of failing.
Refactor the flamegraph test into a suite with two sub-campaigns: sleep (no samples leads to graceful skip) and dd (real samples generates a SVG flamegraph), and add a dedicated fzf-based campaign for interactively browsing dd runs.