public void UpdateCcxL3CounterData(int ccxIdx, int threadIdx)
{
ThreadAffinity.Set(1UL << threadIdx);
float normalizationFactor = GetNormalizationFactor(threadIdx);
ulong ctr0 = ReadAndClearMsr(MSR_L3_PERF_CTR_0);
ulong ctr1 = ReadAndClearMsr(MSR_L3_PERF_CTR_1);
ulong ctr2 = ReadAndClearMsr(MSR_L3_PERF_CTR_2);
ulong ctr3 = ReadAndClearMsr(MSR_L3_PERF_CTR_3);
ulong ctr4 = ReadAndClearMsr(MSR_L3_PERF_CTR_4);
ulong ctr5 = ReadAndClearMsr(MSR_L3_PERF_CTR_5);
if (ccxCounterData[ccxIdx] == null)
{
ccxCounterData[ccxIdx] = new L3CounterData();
}
ccxCounterData[ccxIdx].ctr0 = ctr0 * normalizationFactor;
ccxCounterData[ccxIdx].ctr1 = ctr1 * normalizationFactor;
ccxCounterData[ccxIdx].ctr2 = ctr2 * normalizationFactor;
ccxCounterData[ccxIdx].ctr3 = ctr3 * normalizationFactor;
ccxCounterData[ccxIdx].ctr4 = ctr4 * normalizationFactor;
ccxCounterData[ccxIdx].ctr5 = ctr5 * normalizationFactor;
ccxTotals.ctr0 += ccxCounterData[ccxIdx].ctr0;
ccxTotals.ctr1 += ccxCounterData[ccxIdx].ctr1;
ccxTotals.ctr2 += ccxCounterData[ccxIdx].ctr2;
ccxTotals.ctr3 += ccxCounterData[ccxIdx].ctr3;
ccxTotals.ctr4 += ccxCounterData[ccxIdx].ctr4;
ccxTotals.ctr5 += ccxCounterData[ccxIdx].ctr5;
}
public ZenL3Cache()
{
architectureName = "Zen L3";
ccxSampleThreads = new Dictionary <int, int>();
allCcxThreads = new Dictionary <int, List <int> >();
for (int threadIdx = 0; threadIdx < GetThreadCount(); threadIdx++)
{
int ccxIdx = GetCcxId(threadIdx);
ccxSampleThreads[ccxIdx] = threadIdx;
List <int> ccxThreads;
if (!allCcxThreads.TryGetValue(ccxIdx, out ccxThreads))
{
ccxThreads = new List <int>();
allCcxThreads.Add(ccxIdx, ccxThreads);
}
ccxThreads.Add(threadIdx);
}
monitoringConfigs = new MonitoringConfig[1];
monitoringConfigs[0] = new HitRateLatencyConfig(this);
ccxCounterData = new L3CounterData[ccxSampleThreads.Count()];
ccxTotals = new L3CounterData();
}
private string[] computeMetrics(string label, L3CounterData counterData)
{
float ccxL3HitBw = counterData.ctr5 * 64;
return(new string[] { label,
FormatLargeNumber(ccxL3HitBw) + "B/s",
FormatLargeNumber(counterData.ctr0 * 64) + "B/s",
FormatLargeNumber(counterData.ctr1 * 64) + "B/s",
FormatLargeNumber(counterData.ctr2 * 64) + "B/s",
FormatLargeNumber(counterData.ctr3 * 64) + "B/s",
FormatLargeNumber(counterData.ctr4 * 64) + "B/s" });
}
private string[] computeMetrics(string label, L3CounterData counterData)
{
float ccxL3Hitrate = (1 - counterData.ctr1 / counterData.ctr0) * 100;
float ccxL3HitBw = (counterData.ctr0 - counterData.ctr1) * 64;
return(new string[] { label,
string.Format("{0:F2}%", ccxL3Hitrate),
FormatLargeNumber(ccxL3HitBw) + "B/s",
string.Format("{0:F2}%", 100 * counterData.ctr2 / counterData.ctr0),
string.Format("{0:F2}%", 100 * counterData.ctr3 / counterData.ctr0),
string.Format("{0:F2}%", 100 * counterData.ctr4 / counterData.ctr0),
string.Format("{0:F2}%", 100 * counterData.ctr5 / counterData.ctr0) });
}
private string[] computeMetrics(string label, L3CounterData counterData, float clk)
{
// event 0x90 counts "total cycles for all transactions divided by 16"
float ccxL3MissLatency = (float)counterData.ctr2 * 16 / counterData.ctr3;
float ccxL3Hitrate = (1 - (float)counterData.ctr1 / counterData.ctr0) * 100;
float ccxL3HitBw = ((float)counterData.ctr0 - counterData.ctr1) * 64;
return(new string[] { label,
FormatLargeNumber(clk),
string.Format("{0:F2}%", ccxL3Hitrate),
FormatLargeNumber(ccxL3HitBw) + "B/s",
string.Format("{0:F1} clks", ccxL3MissLatency),
string.Format("{0:F1} ns", (1000000000 / clk) * ccxL3MissLatency),
string.Format("{0:F2}", counterData.ctr2 * 16 / clk),
FormatLargeNumber(counterData.ctr3),
FormatLargeNumber(counterData.ctr3 * 64) + "B/s" });
}
private string[] computeMetrics(string label, L3CounterData counterData)
{
// event 0x90 counts "total cycles for all transactions divided by 16"
float l3Access = counterData.ctr4;
float l3Miss = counterData.ctr5;
float ccxL3Hitrate = (1 - l3Miss / l3Access) * 100;
float ccxL3HitBw = (l3Access - l3Miss) * 64;
return(new string[] { label,
string.Format("{0:F2}%", ccxL3Hitrate),
FormatLargeNumber(ccxL3HitBw) + "B/s",
FormatLargeNumber(ccxL3HitBw + (counterData.ctr0 + counterData.ctr2) * 64) + "B/s",
FormatLargeNumber(counterData.ctr0 * 64) + "B/s",
FormatLargeNumber(counterData.ctr1 * 64) + "B/s",
FormatLargeNumber(counterData.ctr2 * 64) + "B/s",
FormatLargeNumber(counterData.ctr3 * 64) + "B/s" });
}
