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warmup eviction scenario #277

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Merged
merged 1 commit into from
Sep 26, 2022
Merged

warmup eviction scenario #277

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10 changes: 9 additions & 1 deletion BitFaster.Caching.ThroughputAnalysis/ConfigFactory.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ public static (ThroughputBenchmarkBase, IThroughputBenchConfig, int) Create(Mode
case Mode.Update:
return (new UpdateThroughputBenchmark(), new ZipfConfig(iterations, samples, s, n), cacheSize);
case Mode.Evict:
return (new ReadThroughputBenchmark(), new EvictionConfig(iterations, samples, maxThreads), cacheSize);
return (new ReadThroughputBenchmark() { Initialize = c => EvictionInit(c) }, new EvictionConfig(iterations, samples, maxThreads), cacheSize);
}

throw new InvalidOperationException();
Expand All @@ -50,5 +50,13 @@ public static (ThroughputBenchmarkBase, IThroughputBenchConfig, int) Create(Mode
< 5_000_000 => cacheSize * 2,
_ => cacheSize
};

private static void EvictionInit(ICache<int, int> cache)
{
Parallel.ForEach(Enumerable.Range(0, cache.Policy.Eviction.Value.Capacity).Select(i => -i), i =>
{
cache.GetOrAdd(i, key => i);
});
}
}
}
4 changes: 4 additions & 0 deletions BitFaster.Caching.ThroughputAnalysis/ThroughputBenchmark.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -13,10 +13,14 @@ public interface IThroughputBenchmark

public abstract class ThroughputBenchmarkBase
{
public Action<ICache<int, int>> Initialize { get; set; }

public double Run(int warmup, int runs, int threads, IThroughputBenchConfig config, ICache<int, int> cache)
{
double[] results = new double[warmup + runs];

Initialize?.Invoke(cache);

for (int i = 0; i < warmup + runs; i++)
{
results[i] = Run(threads, config, cache);
Expand Down