TBR: lib/exec: attempt to fix flakiness by setting GOMAXPROCS to 1
Change-Id: Ia69ad0df45e4869baa4b497333ab3ef9ad419ff2
diff --git a/lib/exec/exec_test.go b/lib/exec/exec_test.go
index 6426f8c..00e58ec 100644
--- a/lib/exec/exec_test.go
+++ b/lib/exec/exec_test.go
@@ -10,6 +10,7 @@
"log"
"os"
"os/exec"
+ "runtime"
"strings"
"sync"
"syscall"
@@ -31,6 +32,14 @@
const baselineOpenFiles = 3
func init() {
+ if os.Getenv("GOMAXPROCS") == "" {
+ // Set the number of logical processors to 1 if GOMAXPROCS is
+ // not set in the environment.
+ //
+ // TODO(caprita): the default in Go 1.5 is num cpus, which
+ // causes flakiness. Figure out why.
+ runtime.GOMAXPROCS(1)
+ }
if os.Getenv("GO_WANT_HELPER_PROCESS_EXEC") == "1" {
return
}
