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[$] Data-type profiling for perf
Thursday December 21, 2023. 05:41 PM , from LWN.net
Tooling for profiling the effects of memory usage and layout has always
lagged behind that for profiling processor activity, so Namhyung Kim's patch set for data-type profiling in perf is a welcome addition. It provides aggregated breakdowns of memory accesses by data type that can inform structure layout and access pattern changes. Existing tools have either, like heaptrack, focused on profiling allocations, or, like perf mem, on accounting memory accesses only at the address level. This new work builds on the latter, using DWARF debugging information to correlate memory operations with their source-level types.
https://lwn.net/Articles/955709/
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