Profiling Formats and Why You Should Care
Talkat Observability Day Europe 2023 · on Tuesday, 2023-04-18· at 15:20· Hall 7, Room E | Ground Floor | Europe Complex·
summary
Compares folded stacks, pprof and Speedscope with concrete trade-offs: pprof deduplicates strings and supports synchronous symbolization, Speedscope adds timeline events, folded stacks are tiny but lossy. Describes a continuous profiling service (Parca/Polar Signals) that samples at 19 Hz, generates about 675 MB/month/core and can reach nearly 1 TB for a small cluster, costing roughly $80 egress; proposes a pprof-with-a-twist protocol that sends stack hashes first and only transmits full symbols on miss to cut repeated-stack overhead.
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