// I am not recording the access time when prepopulating the cache.
public void InitCache(OnDiskData diskData, int iPercent)
{
DiskItems = diskData;
int iDiskItemsCount = diskData.GetTotalItems();
int iCachedItemsCount = iDiskItemsCount * iPercent / 100;
CachedItems = new CachedItem[iCachedItemsCount];
iReplacedItems = 0;
int iAdded = 0;
while (iAdded < iCachedItemsCount)
{
OnDiskItem temp = diskData.GetItem(r.getRand(iDiskItemsCount));
CachedItem item = new CachedItem(temp);
CachedItems[iAdded] = item;
iAdded++;
}
Console.WriteLine("Cached initialized: {0} entries, heap size is {1} bytes",
iCachedItemsCount, GC.GetTotalMemory(true));
iCachedCount = iCachedItemsCount;
}
public void DoWork()
{
stopwatch.Reset();
stopwatch.Start();
long lElapsedMS = 0;
ulong ulRequests = 1;
// We pin every Nth item.
int iNth = Int32.MaxValue;
if (iPinningPercent != 0)
{
iNth = 100 / iPinningPercent;
}
try
{
while (true)
{
bool fPin = false;
int iAllocated = 0;
iAllocated += AllocateTempHalf();
int iItemToLookUp = r.getRand(DiskItems.GetTotalItems());
if ((ulRequests % (ulong)iNth) == 0)
{
//Console.WriteLine("pinning on request {0}!", ulRequests);
fPin = true;
}
string strData = cache.GetUserData(iItemToLookUp, fPin);
// Simulating using the data from the item.
StringBuilder sb = new StringBuilder(strData);
sb.Append(ulRequests);
iAllocated += AllocateTempQuater();
AllocateRest(iAllocated);
ulRequests++;
if (ulRequests % 100 == 0)
{
Console.WriteLine("{0} requests executed, took {1}ms",
ulRequests,
stopwatch.ElapsedMilliseconds - lElapsedMS);
lElapsedMS = stopwatch.ElapsedMilliseconds;
}
}
}
catch (Exception ex)
{
Console.WriteLine("!!!!!!" + ex.ToString());
}
Console.WriteLine("----------------Exiting user thread----------------");
}