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device: run fewer trials in TestWaitPool when race detector enabled

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On a many-core machine with the race detector enabled,
this test can take several minutes to complete.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
This commit is contained in:
Josh Bleecher Snyder 2021-02-09 08:18:47 -08:00 committed by Jason A. Donenfeld
parent ecceaadd16
commit d117d42ae7
3 changed files with 24 additions and 0 deletions
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4
device/pools_test.go
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@ -17,6 +17,10 @@ import (
func TestWaitPool(t *testing.T) { func TestWaitPool(t *testing.T) {
var wg sync.WaitGroup var wg sync.WaitGroup
trials := int32(100000) trials := int32(100000)
if raceEnabled {
// This test can be very slow with -race.
trials /= 10
}
workers := runtime.NumCPU() + 2 workers := runtime.NumCPU() + 2
if workers-4 <= 0 { if workers-4 <= 0 {
t.Skip("Not enough cores") t.Skip("Not enough cores")

10
device/race_disabled_test.go Normal file
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@ -0,0 +1,10 @@
//+build !race
/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2017-2021 WireGuard LLC. All Rights Reserved.
*/
package device
const raceEnabled = false

10
device/race_enabled_test.go Normal file
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@ -0,0 +1,10 @@
//+build race
/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2017-2021 WireGuard LLC. All Rights Reserved.
*/
package device
const raceEnabled = true