Amir Ayupov 5047a33cd8 [BOLT][heatmap] Produce zoomed-out heatmaps (#140153) ...

Add a capability to produce multiple heatmaps with given bucket sizes.

The default heatmap block size (64B) could be too fine-grained for
large binaries. Extend the option `block-size` to accept a list of
bucket sizes for additional heatmaps with coarser granularity. The
heatmap is simply rescaled so provided sizes should be multiples of
each other. Human-readable suffixes can be used, e.g. 4K, 16kb, 1MiB.

New defaults: 64B (base bucket size), 4KB (default page size),
256KB (for large binaries).

Test Plan: updated heatmap-preagg.test

2025-05-30 16:20:19 -07:00

12 KiB

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