From: Russ Cox <rsc@golang.org>
Date: Tue, 21 Jul 2015 00:30:41 +0000 (-0400)
Subject: runtime: disable TestGoroutineParallelism on uniprocessor
X-Git-Tag: go1.5beta3~115
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=4a4eba9f37cde100584c7ee07c602d7b80e4e8f9;p=gostls13.git

runtime: disable TestGoroutineParallelism on uniprocessor

It's a bad test and it's worst on uniprocessors.

Fixes #11143.

Change-Id: I0164231ada294788d7eec251a2fc33e02a26c13b
Reviewed-on: https://go-review.googlesource.com/12522
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
---

diff --git a/src/runtime/proc_test.go b/src/runtime/proc_test.go
index 4471ee5afb..2be103e3a6 100644
--- a/src/runtime/proc_test.go
+++ b/src/runtime/proc_test.go
@@ -96,6 +96,10 @@ func TestYieldLocked(t *testing.T) {
 }
 
 func TestGoroutineParallelism(t *testing.T) {
+	if runtime.NumCPU() == 1 {
+		// Takes too long, too easy to deadlock, etc.
+		t.Skip("skipping on uniprocessor")
+	}
 	P := 4
 	N := 10
 	if testing.Short() {