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| author | Paul Buetow <paul@buetow.org> | 2025-03-18 22:32:53 +0200 |
|---|---|---|
| committer | Paul Buetow <paul@buetow.org> | 2025-03-18 22:32:53 +0200 |
| commit | dbcd2f6dc2a4b842ebcfa5dbfc7990befa27267c (patch) | |
| tree | 6ccbb822a472eb20dd1008f73a649e4aaa4db8f0 | |
| parent | 6010e057e2d0593a6c6b50f4c7aee301a86a478a (diff) | |
add race detector
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | internal/flamegraph/flamegraph.go | 6 |
2 files changed, 8 insertions, 1 deletions
@@ -25,6 +25,8 @@ generate: .PHONY: gobuild gobuild: $(GO) build -tags netgo -ldflags '-w -extldflags "-static"' -o ior ./cmd/ior/main.go +gobuild_race: + $(GO) build -tags netgo -ldflags '-w -extldflags "-static"' -race -o ior ./cmd/ior/main.go .PHONY: clean clean: @@ -69,3 +71,4 @@ inferno: prof: $(GO) tool pprof -pdf ./ior ior.cpuprofile > cpuprofile.pdf && evince cpuprofile.pdf & $(GO) tool pprof -pdf ./ior ior.memprofile > memprofile.pdf && evince memprofile.pdf & + diff --git a/internal/flamegraph/flamegraph.go b/internal/flamegraph/flamegraph.go index 223389d..d5d7e96 100644 --- a/internal/flamegraph/flamegraph.go +++ b/internal/flamegraph/flamegraph.go @@ -21,7 +21,11 @@ func New() Flamegraph { Ch: make(chan *event.Pair, 4096), Done: make(chan struct{}), } - for range runtime.NumCPU() / 2 { + numWorkers := runtime.NumCPU() / 4 + if numWorkers == 0 { + numWorkers = 1 + } + for range numWorkers { f.workers = append(f.workers, newWorker()) } return f |