public void ClearTest()
{
GenericCache <int, int> cache = new GenericCache <int, int>();
cache.Add(1, 1001);
cache.Add(2, 1002);
Assert.AreEqual <int>(2, cache.Count);
cache.Clear();
Assert.AreEqual <int>(0, cache.Count);
}
public void GenericCacheTest()
{
var cacheHelper = new GenericCache <string, string>();
cacheHelper.Add("hello", "world");
Assert.AreEqual <int>(1, cacheHelper.Count);
Assert.AreEqual <bool>(true, cacheHelper.ContainsKey("hello"));
Assert.AreEqual <bool>(false, cacheHelper.ContainsKey("hi"));
var val = "";
cacheHelper.TryGetValue("hello", out val);
Assert.AreEqual <string>("world", val);
cacheHelper.Clear();
Assert.AreEqual <int>(0, cacheHelper.Count);
}
private static void PerformanceProfiling()
{
// Create cache
var sqliteConfig = new SQLiteCacheHandleAdditionalConfiguration
{
DatabaseFilePath = "MyDatabase2.sqlite"
};
using ICacheManager <int> cacheManager = CacheFactory.Build <int>(
settings =>
{
settings
.WithProtoBufSerializer(
new RecyclableMemoryStreamManager()) // TODO: Even the memory stream objects is causing perf problems, since it's in the tight loop', is there a way to pool those too?
.WithSQLiteCacheHandle(sqliteConfig)
.EnableStatistics()
.Build();
});
using CancellationTokenSource cts = new CancellationTokenSource();
Task.Run(
async() =>
{
while (!cts.Token.IsCancellationRequested)
{
await Task.Delay(100);
var stats = cacheManager.CacheHandles.First().Stats;
Console.WriteLine(
string.Format(
"Items: {0}, Hits: {1}, Miss: {2}, Remove: {3}, ClearRegion: {4}, Clear: {5}, Adds: {6}, Puts: {7}, Gets: {8}",
stats.GetStatistic(CacheStatsCounterType.Items),
stats.GetStatistic(CacheStatsCounterType.Hits),
stats.GetStatistic(CacheStatsCounterType.Misses),
stats.GetStatistic(CacheStatsCounterType.RemoveCalls),
stats.GetStatistic(CacheStatsCounterType.ClearRegionCalls),
stats.GetStatistic(CacheStatsCounterType.ClearCalls),
stats.GetStatistic(CacheStatsCounterType.AddCalls),
stats.GetStatistic(CacheStatsCounterType.PutCalls),
stats.GetStatistic(CacheStatsCounterType.GetCalls)
));
}
});
using GenericCache <Guid, int> toStringCache = new GenericCache <Guid, int>(cacheManager);
toStringCache.Clear();
// Performance profiling
var st = Stopwatch.StartNew();
try
{
// Use a transaction to avoid going to disk for EACH operation
// TODO: Better/more ephemeral/auto ways to do this?
using (var tr = sqliteConfig.GetBeginTransactionMethod()())
{
for (int i = 0; i < 28000; i++)
{
Guid newGuid = Guid.NewGuid();
toStringCache[newGuid] = i;
var cacheItemIfExists = toStringCache.GetCacheItem(newGuid);
cacheItemIfExists.Should().NotBeNull("should exist");
cacheItemIfExists.Value.value.Should().Be(i);
}
tr.Commit();
tr.Dispose();
}
}
finally
{
Console.WriteLine(st.Elapsed);
}
}
