private static void PopulateStore(FasterKV <CacheKey, CacheValue> store)
{
// Start session with FASTER
using var s = store.For(new CacheFunctions()).NewSession <CacheFunctions>();
Console.WriteLine("Writing keys from 0 to {0} to FASTER", numKeys);
Stopwatch sw = new Stopwatch();
sw.Start();
for (int i = 0; i < numKeys; i++)
{
if (i % (1 << 19) == 0)
{
long workingSet = Process.GetCurrentProcess().WorkingSet64;
Console.WriteLine($"{i}: {workingSet / 1048576}M");
}
var key = new CacheKey(i);
var value = new CacheValue(i);
s.Upsert(ref key, ref value);
}
sw.Stop();
Console.WriteLine("Total time to upsert {0} elements: {1:0.000} secs ({2:0.00} inserts/sec)", numKeys, sw.ElapsedMilliseconds / 1000.0, numKeys / (sw.ElapsedMilliseconds / 1000.0));
}
private static void RandomReadWorkload(int threadid)
{
Console.WriteLine("Issuing uniform random read workload of {0} reads from thread {1}", numKeys, threadid);
var sessions = new ClientSession <CacheKey, CacheValue, CacheValue, CacheValue, CacheContext, CacheFunctions> [kNumTables];
for (int ht = 0; ht < kNumTables; ht++)
{
sessions[ht] = h[ht].NewSession <CacheValue, CacheValue, CacheContext, CacheFunctions>(new CacheFunctions());
}
var rnd = new Random(threadid);
int statusPending = 0;
CacheValue output = default;
Stopwatch sw = new Stopwatch();
sw.Start();
int i = 0;
while (true)
{
if (i > 0 && (i % 256 == 0))
{
for (int htcnt = 0; htcnt < kNumTables; htcnt++)
{
sessions[htcnt].CompletePending(false);
}
Interlocked.Add(ref totalReads, 256);
}
long k = rnd.Next(numKeys);
var hts = sessions[rnd.Next(kNumTables)];
var key = new CacheKey(k);
var status = hts.Read(ref key, ref output);
switch (status)
{
case Status.PENDING:
statusPending++;
break;
case Status.OK:
if (output.value != key.key)
{
throw new Exception("Read error!");
}
break;
default:
throw new Exception("Error!");
}
i++;
}
/*
* sw.Stop();
* Console.WriteLine("Total time to read {0} elements: {1:0.000} secs ({2:0.00} reads/sec)", max, sw.ElapsedMilliseconds / 1000.0, max / (sw.ElapsedMilliseconds / 1000.0));
* Console.WriteLine($"Reads completed with PENDING: {statusPending}");
*
* for (int ht = 0; ht < kNumTables; ht++)
* sessions[ht].Dispose();
*/
}