private static void InteractiveReadWorkload(FasterKV <CacheKey, CacheValue, CacheInput, CacheOutput, CacheContext, CacheFunctions> h, int max)
{
Console.WriteLine("Issuing interactive read workload");
var context = new CacheContext {
type = 1
};
while (true)
{
Console.Write("Enter key (int), -1 to exit: ");
int k = int.Parse(Console.ReadLine());
if (k == -1)
{
break;
}
var output = new CacheOutput();
var input = default(CacheInput);
var key = new CacheKey(k);
context.ticks = DateTime.Now.Ticks;
var status = h.Read(ref key, ref input, ref output, context, 0);
switch (status)
{
case Status.PENDING:
h.CompletePending(true);
break;
case Status.OK:
long ticks = DateTime.Now.Ticks - context.ticks;
if (output.value.value != key.key)
{
Console.WriteLine("Sync: Incorrect value {0} found, latency = {1}ms", output.value.value, new TimeSpan(ticks).TotalMilliseconds);
}
else
{
Console.WriteLine("Sync: Correct value {0} found, latency = {1}ms", output.value.value, new TimeSpan(ticks).TotalMilliseconds);
}
break;
default:
ticks = DateTime.Now.Ticks - context.ticks;
Console.WriteLine("Sync: Value not found, latency = {0}ms", new TimeSpan(ticks).TotalMilliseconds);
break;
}
}
}
private static void RandomReadWorkload(FasterKV <CacheKey, CacheValue, CacheInput, CacheOutput, CacheContext, CacheFunctions> h, int max)
{
Console.WriteLine("Issuing uniform random read workload of {0} reads", max);
var rnd = new Random(0);
int statusPending = 0;
var output = new CacheOutput();
var context = new CacheContext();
var input = default(CacheInput);
Stopwatch sw = new Stopwatch();
sw.Start();
for (int i = 0; i < max; i++)
{
long k = rnd.Next(max);
var key = new CacheKey(k);
var status = h.Read(ref key, ref input, ref output, context, 0);
switch (status)
{
case Status.PENDING:
statusPending++;
if (statusPending % 1000 == 0)
{
h.CompletePending(false);
}
break;
case Status.OK:
if (output.value.value != key.key)
{
throw new Exception("Read error!");
}
break;
default:
throw new Exception("Error!");
}
}
h.CompletePending(true);
sw.Stop();
Console.WriteLine("Total time to read {0} elements: {1:0.000} secs ({2:0.00} reads/sec)", max, sw.ElapsedMilliseconds / 1000.0, max / (sw.ElapsedMilliseconds / 1000.0));
Console.WriteLine($"Reads completed with PENDING: {statusPending}");
}
