diff options
| -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 |