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lock tests: Initialize different DRWMutex for each lock (#15833)

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Anis Elleuch 2022-10-10 23:14:32 +01:00 committed by GitHub
parent 0c8dd8046a
commit afd4279cd8
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1 changed files with 25 additions and 21 deletions
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46
internal/dsync/drwmutex_test.go
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@ -32,40 +32,41 @@ const (
)
func testSimpleWriteLock(t *testing.T, duration time.Duration) (locked bool) {
drwm := NewDRWMutex(ds, "simplelock")
drwm1 := NewDRWMutex(ds, "simplelock")
ctx1, cancel1 := context.WithCancel(context.Background())
if !drwm.GetRLock(ctx1, cancel1, id, source, Options{Timeout: time.Second}) {
if !drwm1.GetRLock(ctx1, cancel1, id, source, Options{Timeout: time.Second}) {
panic("Failed to acquire read lock")
}
// fmt.Println("1st read lock acquired, waiting...")
drwm2 := NewDRWMutex(ds, "simplelock")
ctx2, cancel2 := context.WithCancel(context.Background())
if !drwm.GetRLock(ctx2, cancel2, id, source, Options{Timeout: time.Second}) {
if !drwm2.GetRLock(ctx2, cancel2, id, source, Options{Timeout: time.Second}) {
panic("Failed to acquire read lock")
}
// fmt.Println("2nd read lock acquired, waiting...")
go func() {
time.Sleep(2 * testDrwMutexAcquireTimeout)
drwm.RUnlock()
drwm1.RUnlock()
// fmt.Println("1st read lock released, waiting...")
}()
go func() {
time.Sleep(3 * testDrwMutexAcquireTimeout)
drwm.RUnlock()
drwm2.RUnlock()
// fmt.Println("2nd read lock released, waiting...")
}()
drwm3 := NewDRWMutex(ds, "simplelock")
// fmt.Println("Trying to acquire write lock, waiting...")
ctx3, cancel3 := context.WithCancel(context.Background())
locked = drwm.GetLock(ctx3, cancel3, id, source, Options{Timeout: duration})
locked = drwm3.GetLock(ctx3, cancel3, id, source, Options{Timeout: duration})
if locked {
// fmt.Println("Write lock acquired, waiting...")
time.Sleep(testDrwMutexAcquireTimeout)
drwm.Unlock()
drwm3.Unlock()
}
// fmt.Println("Write lock failed due to timeout")
return
@ -90,28 +91,29 @@ func TestSimpleWriteLockTimedOut(t *testing.T) {
}
func testDualWriteLock(t *testing.T, duration time.Duration) (locked bool) {
drwm := NewDRWMutex(ds, "duallock")
drwm1 := NewDRWMutex(ds, "duallock")
// fmt.Println("Getting initial write lock")
ctx1, cancel1 := context.WithCancel(context.Background())
if !drwm.GetLock(ctx1, cancel1, id, source, Options{Timeout: time.Second}) {
if !drwm1.GetLock(ctx1, cancel1, id, source, Options{Timeout: time.Second}) {
panic("Failed to acquire initial write lock")
}
go func() {
time.Sleep(3 * testDrwMutexAcquireTimeout)
drwm.Unlock()
drwm1.Unlock()
// fmt.Println("Initial write lock released, waiting...")
}()
// fmt.Println("Trying to acquire 2nd write lock, waiting...")
drwm2 := NewDRWMutex(ds, "duallock")
ctx2, cancel2 := context.WithCancel(context.Background())
locked = drwm.GetLock(ctx2, cancel2, id, source, Options{Timeout: duration})
locked = drwm2.GetLock(ctx2, cancel2, id, source, Options{Timeout: duration})
if locked {
// fmt.Println("2nd write lock acquired, waiting...")
time.Sleep(testDrwMutexAcquireTimeout)
drwm.Unlock()
drwm2.Unlock()
}
// fmt.Println("2nd write lock failed due to timeout")
return
@ -180,7 +182,8 @@ func TestParallelReaders(t *testing.T) {
}
// Borrowed from rwmutex_test.go
func reader(rwm *DRWMutex, numIterations int, activity *int32, cdone chan bool) {
func reader(resource string, numIterations int, activity *int32, cdone chan bool) {
rwm := NewDRWMutex(ds, resource)
for i := 0; i < numIterations; i++ {
if rwm.GetRLock(context.Background(), nil, id, source, Options{Timeout: time.Second}) {
n := atomic.AddInt32(activity, 1)
@ -197,7 +200,8 @@ func reader(rwm *DRWMutex, numIterations int, activity *int32, cdone chan bool)
}
// Borrowed from rwmutex_test.go
func writer(rwm *DRWMutex, numIterations int, activity *int32, cdone chan bool) {
func writer(resource string, numIterations int, activity *int32, cdone chan bool) {
rwm := NewDRWMutex(ds, resource)
for i := 0; i < numIterations; i++ {
if rwm.GetLock(context.Background(), nil, id, source, Options{Timeout: time.Second}) {
n := atomic.AddInt32(activity, 10000)
@ -216,19 +220,19 @@ func writer(rwm *DRWMutex, numIterations int, activity *int32, cdone chan bool)
// Borrowed from rwmutex_test.go
func hammerRWMutex(t *testing.T, gomaxprocs, numReaders, numIterations int) {
t.Run(fmt.Sprintf("%d-%d-%d", gomaxprocs, numReaders, numIterations), func(t *testing.T) {
resource := "test"
runtime.GOMAXPROCS(gomaxprocs)
// Number of active readers + 10000 * number of active writers.
var activity int32
rwm := NewDRWMutex(ds, "test")
cdone := make(chan bool)
go writer(rwm, numIterations, &activity, cdone)
go writer(resource, numIterations, &activity, cdone)
var i int
for i = 0; i < numReaders/2; i++ {
go reader(rwm, numIterations, &activity, cdone)
go reader(resource, numIterations, &activity, cdone)
}
go writer(rwm, numIterations, &activity, cdone)
go writer(resource, numIterations, &activity, cdone)
for ; i < numReaders; i++ {
go reader(rwm, numIterations, &activity, cdone)
go reader(resource, numIterations, &activity, cdone)
}
// Wait for the 2 writers and all readers to finish.
for i := 0; i < 2+numReaders; i++ {
@ -309,10 +313,10 @@ func benchmarkRWMutex(b *testing.B, localWork, writeRatio int) {
b.ResetTimer()
b.ReportAllocs()
rwm := NewDRWMutex(ds, "test")
b.RunParallel(func(pb *testing.PB) {
foo := 0
for pb.Next() {
rwm := NewDRWMutex(ds, "test")
foo++
if foo%writeRatio == 0 {
rwm.Lock(id, source)