Add --compression-level/-z option for compressed perf record #410
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Maps to perf --compression-level/-z
djc
reviewed
Nov 5, 2025
| .as_deref() | ||
| .filter(|_| { | ||
| a.target.name == *target && a.target.kind.iter().any(|k| kind.contains(&k)) | ||
| a.target.name == *target && a.target.kind.iter().any(|k| kind.contains(k)) |
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These seem like unrelated changes, right? Are they giving you warnings or something?
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New option for recording compressed trace data. This can make a significant difference to the perf.data size.
Example using (fastest) compression level
-zWhat would have been ~3GB perf.data is ~100MB compressed without any noticeable overhead 🙂
Alternatives
It is possible to do this already with
--cmd "record -F 997 --call-graph dwarf,64000 -g -z"but this isn't as nice, and compression is something I want to use pretty much always.