//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test void shouldRegisterConcurrentAllocationsAndDeallocations() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
internal virtual void ShouldRegisterConcurrentAllocationsAndDeallocations()
{
// given
ThreadSafePeakMemoryAllocationTracker tracker = new ThreadSafePeakMemoryAllocationTracker(GlobalMemoryTracker.Instance);
Race race = new Race();
race.AddContestants(10, () =>
{
for (int i = 1; i < 100; i++)
{
tracker.Allocated(i);
assertThat(tracker.UsedDirectMemory(), greaterThan(0L));
}
for (int i = 1; i < 100; i++)
{
assertThat(tracker.UsedDirectMemory(), greaterThan(0L));
tracker.Deallocated(i);
}
}, 1);
// when
race.Go();
// then
assertEquals(0, tracker.UsedDirectMemory());
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private void tryOnce(final org.neo4j.kernel.internal.GraphDatabaseAPI db, final org.neo4j.graphdb.Node node) throws Throwable
//JAVA TO C# CONVERTER WARNING: 'final' parameters are ignored unless the option to convert to C# 7.2 'in' parameters is selected:
private void TryOnce(GraphDatabaseAPI db, Node node)
{
Race race = (new Race()).withRandomStartDelays();
race.AddContestants(Runtime.Runtime.availableProcessors(), () =>
{
using (Transaction ignored = Db.beginTx())
{
assertEquals(_relCount, count(node.Relationships));
}
});
race.Go();
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test void shouldRegisterPeakMemoryUsage() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
internal virtual void ShouldRegisterPeakMemoryUsage()
{
// given
ThreadSafePeakMemoryAllocationTracker tracker = new ThreadSafePeakMemoryAllocationTracker(GlobalMemoryTracker.Instance);
int threads = 200;
long[] allocations = new long[threads];
ThreadLocalRandom random = ThreadLocalRandom.current();
long sum = 0;
for (int i = 0; i < allocations.Length; i++)
{
allocations[i] = random.Next(1, 10_000);
sum += allocations[i];
}
// when
Race race = new Race();
for (int i = 0; i < threads; i++)
{
int id = i;
race.AddContestant(() => tracker.allocated(allocations[id]));
}
race.Go();
long peakAfterAllocation = tracker.PeakMemoryUsage();
LongStream.of(allocations).forEach(tracker.deallocated);
long peakAfterDeallocation = tracker.PeakMemoryUsage();
LongStream.of(allocations).forEach(tracker.allocated);
tracker.Allocated(10); // <-- 10 more than previous peak
long peakAfterHigherReallocation = tracker.PeakMemoryUsage();
LongStream.of(allocations).forEach(tracker.deallocated);
tracker.Deallocated(10);
long peakAfterFinalDeallocation = tracker.PeakMemoryUsage();
// then
assertEquals(sum, peakAfterAllocation);
assertEquals(sum, peakAfterDeallocation);
assertEquals(sum + 10, peakAfterHigherReallocation);
assertEquals(sum + 10, peakAfterFinalDeallocation);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldReadConsistentPropertyValues() throws Throwable
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldReadConsistentPropertyValues()
{
// GIVEN
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final Node[] nodes = new Node[10];
Node[] nodes = new Node[10];
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final String[] keys = new String[] {"1", "2", "3"};
string[] keys = new string[] { "1", "2", "3" };
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final String[] values = new String[] { longString('a'), longString('b'), longString('c')};
string[] values = new string[] { LongString('a'), LongString('b'), LongString('c') };
using (Transaction tx = Db.beginTx())
{
for (int i = 0; i < nodes.Length; i++)
{
nodes[i] = Db.createNode();
foreach (string key in keys)
{
nodes[i].SetProperty(key, values[0]);
}
}
tx.Success();
}
int updaters = 10;
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.atomic.AtomicLong updatersDone = new java.util.concurrent.atomic.AtomicLong(updaters);
AtomicLong updatersDone = new AtomicLong(updaters);
Race race = new Race();
for (int i = 0; i < updaters; i++)
{
// Changers
race.AddContestant(() =>
{
try
{
ThreadLocalRandom random = ThreadLocalRandom.current();
for (int j = 0; j < 100; j++)
{
Node node = nodes[random.Next(nodes.Length)];
string key = keys[random.Next(keys.Length)];
using (Transaction tx = Db.beginTx())
{
node.RemoveProperty(key);
tx.Success();
}
using (Transaction tx = Db.beginTx())
{
node.SetProperty(key, values[random.Next(values.Length)]);
tx.Success();
}
}
}
finally
{
updatersDone.decrementAndGet();
}
});
}
for (int i = 0; i < 100; i++)
{
// Readers
race.AddContestant(() =>
{
ThreadLocalRandom random = ThreadLocalRandom.current();
while (updatersDone.get() > 0)
{
using (Transaction tx = Db.beginTx())
{
string value = ( string )nodes[random.Next(nodes.Length)].getProperty(keys[random.Next(keys.Length)], null);
assertTrue(value, string.ReferenceEquals(value, null) || ArrayUtil.contains(values, value));
tx.Success();
}
}
});
}
// WHEN
race.Go();
}
