hsperf 0.2.0

A library to monitor java virtual machines performance data

Coverage
0%
0 out of 6 items documented0 out of 0 items with examples
Size
Source code size: 6.16 MB This is the summed size of all the files inside the crates.io package for this release.
Documentation size: 1.62 MB This is the summed size of all files generated by rustdoc for all configured targets
Ø build duration
this release: 19s Average build duration of successful builds.
all releases: 18s Average build duration of successful builds in releases after 2024-10-23.
Links
dbregeon/hsperf
0 0 0
crates.io
Dependencies
Versions
- 0.2.0 (2025-10-13)
- 0.1.0 (2025-10-05)
Owners

Run Performance Analysis (Ubuntu)

After intalling perf and flamegraph for cargo.

Adjust the kernel event access:

sudo sh -c 'echo -1 >/proc/sys/kernel/perf_event_paranoid'

Run flamegraph:

export CARGO_PROFILE_RELEASE_DEBUG=true && cargo flamegraph --example print_hsperfdata -o target/flamegraph.svg -c "record -e branch-misses -c 100 --call-graph lbr -g"

Code coverage

cargo install cargo-llvm-cov --locked

cargo llvm-cov

Visualize coverage in VSCode using watch/coverage gutters

cargo install cargo-nextest --locked

cargo llvm-cov --lcov --output-path ./target/lcov.info