go install golang.org/x/perf/cmd/benchstat@latest

$(go env GOPATH)/bin/benchstat ...

# feature branch
git checkout feature/lazy-context-tracking
go test ./pkg/jsonpath -bench BenchmarkDescendantQuery -benchmem -run '^$' -benchtime=5s -count=15 > /tmp/feat_desc.txt

# main baseline (reuse benchmark file from feature branch)
git checkout main
git checkout feature/lazy-context-tracking -- pkg/jsonpath/yaml_query_test.go
go test ./pkg/jsonpath -bench BenchmarkDescendantQuery -benchmem -run '^$' -benchtime=5s -count=15 > /tmp/main_desc.txt
git restore --source=HEAD --staged --worktree pkg/jsonpath/yaml_query_test.go

# compare
$(go env GOPATH)/bin/benchstat /tmp/main_desc.txt /tmp/feat_desc.txt

git checkout feature/lazy-context-tracking

LAZY_TRACKING_MODE=eager go test ./pkg/jsonpath \
  -bench BenchmarkLazyContextTrackingStress -benchmem -run '^$' \
  -benchtime=1x -count=15 -tags 'lazytracking stress' > /tmp/lazy_eager.txt

LAZY_TRACKING_MODE=lazy go test ./pkg/jsonpath \
  -bench BenchmarkLazyContextTrackingStress -benchmem -run '^$' \
  -benchtime=1x -count=15 -tags 'lazytracking stress' > /tmp/lazy_lazy.txt

$(go env GOPATH)/bin/benchstat /tmp/lazy_eager.txt /tmp/lazy_lazy.txt