287 lines
11 KiB
Plaintext
287 lines
11 KiB
Plaintext
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///////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// File: PerfSnap.sg
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//
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// Note: Performance measurer for Singularity Benchmark
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//
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using System;
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using Microsoft.Singularity.V1.Services;
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namespace Microsoft.Singularity.Applications
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{
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public struct PerfSnap
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{
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// Global options for all instances
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static bool xmlOutput = false;
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static bool atRing3 = false;
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private bool disabled;
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private long begCycleCount;
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private long endCycleCount;
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private long begSwitchCount;
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private long endSwitchCount;
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private long begInterruptCount;
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private long endInterruptCount;
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private long begKernelGcCount;
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private long endKernelGcCount;
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private long begProcessGcCount;
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private long endProcessGcCount;
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private long iterations;
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private ulong begAllocatedCount;
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private ulong begAllocatedBytes;
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private ulong begFreedCount;
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private ulong begFreedBytes;
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private ulong endAllocatedCount;
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private ulong endAllocatedBytes;
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private ulong endFreedCount;
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private ulong endFreedBytes;
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private ulong begStackGets;
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private ulong begStackRets;
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private ulong endStackGets;
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private ulong endStackRets;
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public long Cycles { get { return endCycleCount - begCycleCount; } }
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public long Interrupts { get { return endInterruptCount - begInterruptCount; } }
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public long Switches { get { return endSwitchCount - begSwitchCount; } }
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public long KernelGCs { get { return endKernelGcCount - begKernelGcCount; } }
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public long ProcessGCs { get { return endProcessGcCount - begProcessGcCount; } }
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public ulong AllocatedCount { get { return endAllocatedCount-begAllocatedCount; } }
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public ulong AllocatedBytes { get { return endAllocatedBytes-begAllocatedBytes; } }
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public ulong FreedCount { get { return endFreedCount - begFreedCount; } }
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public ulong FreedBytes { get { return endFreedBytes - begFreedBytes; } }
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public ulong StackGets { get { return endStackGets - begStackGets; } }
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public ulong StackRets { get { return endStackRets - begStackRets; } }
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public void Start()
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{
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if (!atRing3) {
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disabled = Processor.DisableInterrupts();
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}
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int collectorCount;
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long collectorMillis;
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long collectorBytes;
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GC.PerformanceCounters(out collectorCount,
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out collectorMillis,
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out collectorBytes);
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ulong stackGets;
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ulong stackRets;
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StackService.GetUsageStatistics(out stackGets,
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out stackRets);
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begStackGets = stackGets;
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begStackRets = stackRets;
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ulong allocatedCount;
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ulong allocatedBytes;
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ulong freedCount;
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ulong freedBytes;
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PageTableService.GetUsageStatistics(out allocatedCount,
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out allocatedBytes,
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out freedCount,
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out freedBytes);
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begAllocatedCount = allocatedCount;
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begAllocatedBytes = allocatedBytes;
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begFreedCount = freedCount;
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begFreedBytes = freedBytes;
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begInterruptCount = ProcessService.GetKernelInterruptCount();
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begSwitchCount = ProcessService.GetContextSwitchCount();
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begKernelGcCount = ProcessService.GetKernelGcCount();
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begProcessGcCount = collectorCount;
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#if x64_PERF
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// Set up for perf counting
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if (!atRing3) {
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// Reset the performance counters to what we're interested in.
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Reset(0, PerfEvtSel.COUNT | PerfEvtSel.CyclesNotHalted);
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Reset(1, PerfEvtSel.COUNT | PerfEvtSel.RetiredInstructions);
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Reset(2, PerfEvtSel.COUNT | PerfEvtSel.RetiredBranchInstructions);
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Reset(3, PerfEvtSel.COUNT | PerfEvtSel.RequestsToL2Cache | 0x400);
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} else {
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// We're not allowed to reset the perf counters, so take note
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// of their current values; we will subtract from this later.
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x64_i0 = Processor.ReadPmc(0);
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x64_i1 = Processor.ReadPmc(1);
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x64_i2 = Processor.ReadPmc(2);
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x64_i3 = Processor.ReadPmc(3);
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}
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#endif
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begCycleCount = unchecked((long)Processor.CycleCount);
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}
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public void Finish(long iterations)
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{
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endCycleCount = unchecked((long)Processor.CycleCount);
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#if X64_PERF
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x64_p0 = Processor.ReadPmc(0);
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x64_p1 = Processor.ReadPmc(1);
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x64_p2 = Processor.ReadPmc(2);
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x64_p3 = Processor.ReadPmc(3);
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#endif
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endInterruptCount = ProcessService.GetKernelInterruptCount();
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endSwitchCount = ProcessService.GetContextSwitchCount();
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endKernelGcCount = ProcessService.GetKernelGcCount();
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int collectorCount;
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long collectorMillis;
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long collectorBytes;
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GC.PerformanceCounters(out collectorCount,
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out collectorMillis,
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out collectorBytes);
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endProcessGcCount = collectorCount;
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ulong allocatedCount;
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ulong allocatedBytes;
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ulong freedCount;
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ulong freedBytes;
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PageTableService.GetUsageStatistics(out allocatedCount,
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out allocatedBytes,
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out freedCount,
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out freedBytes);
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endAllocatedCount = allocatedCount;
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endAllocatedBytes = allocatedBytes;
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endFreedCount = freedCount;
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endFreedBytes = freedBytes;
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ulong stackGets;
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ulong stackRets;
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StackService.GetUsageStatistics(out stackGets,
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out stackRets);
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endStackGets = stackGets;
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endStackRets = stackRets;
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if (!atRing3) {
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Processor.RestoreInterrupts(disabled);
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}
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this.iterations = iterations;
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}
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public void Display(string name)
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{
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if (xmlOutput) {
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DisplayXml(name);
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} else {
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DisplayText(name);
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}
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}
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private static void WriteXmlValue(string name, long value)
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{
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DualWriteLine(
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String.Format(" <Measurement> <name> {0} </name> <value> {1:d} </value> </Measurement>", name, value)
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);
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}
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private static void WriteXmlValue(string name, ulong value)
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{
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DualWriteLine(
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String.Format(" <Measurement> <name> {0} </name> <value> {1:d} </value> </Measurement>", name, value)
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);
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}
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private void DisplayXml(string name)
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{
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DualWriteLine(
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String.Format("<Microbenchmark Name=\"{0}\">", name)
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);
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WriteXmlValue("CyclesPerIteration", Cycles / iterations);
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WriteXmlValue("Cycles", Cycles);
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WriteXmlValue("Iterations", iterations);
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WriteXmlValue("Switches", Switches);
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WriteXmlValue("Interrupts", Interrupts);
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WriteXmlValue("KernelGCs", KernelGCs);
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WriteXmlValue("ProcessGCs", ProcessGCs);
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WriteXmlValue("AllocationCount", AllocatedCount);
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WriteXmlValue("AllocationBytes", AllocatedBytes);
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WriteXmlValue("FreedCount", FreedCount);
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WriteXmlValue("FreedBytes", FreedBytes);
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WriteXmlValue("StackGetCount", StackGets);
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WriteXmlValue("StackReturnCount", StackRets);
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DualWriteLine("</Microbenchmark>");
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}
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private void DisplayText(string name)
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{
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DualWriteLine(
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String.Format("{0,-16} {1,6:d} x{2,8:d} ={3,12:d} " +
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"[swi={4,6:d} int={5,3:d} gc={6:d}/{7:d}]",
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name,
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iterations,
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Cycles / iterations,
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Cycles,
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Switches,
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Interrupts,
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KernelGCs,
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ProcessGCs)
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);
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if (AllocatedCount > 1 || FreedCount > 1 || StackGets > 1) {
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DualWriteLine(
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string.Format(
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" " +
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"[alloc={0,4:d}/{1,8:x} free={2,4:d}/{3,8:x} " +
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"stack={4,4:d}/{5,4:d}]",
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AllocatedCount,
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AllocatedBytes,
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FreedCount,
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FreedBytes,
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StackGets,
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StackRets)
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);
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}
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#if x64_PERF
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if (!atRing3) {
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// Read off the current MSR values and turn them
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// into nice labels
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ulong e0 = Processor.ReadMsr(0xc0010000);
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ulong e1 = Processor.ReadMsr(0xc0010001);
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ulong e2 = Processor.ReadMsr(0xc0010002);
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ulong e3 = Processor.ReadMsr(0xc0010003);
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DualWriteLine(
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String.Format("evt: {0,16} {1,16} {2,16} {3,16}",
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EvtSelToString(e0),
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EvtSelToString(e1),
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EvtSelToString(e2),
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EvtSelToString(e3)));
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} else {
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// Subtract from the initial perf-counter values to
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// get the delta we want
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x64_p0 -= x64_i0;
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x64_p1 -= x64_i1;
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x64_p2 -= x64_i2;
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x64_p3 -= x64_i3;
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}
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DualWriteLine(
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String.Format("pmc: {0:d16} {1:d16} {2:d16} {3:d16} {4:d16}\n\n",
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Cycles, x64_p0, x64_p1, x64_p2, x64_p3));
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#endif
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}
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private static void DualWriteLine(string message)
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{
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Console.WriteLine(message);
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DebugStub.WriteLine(message);
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}
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public static void SetOptions(bool ring3, bool doXmlOutput)
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{
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PerfSnap.atRing3 = ring3;
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PerfSnap.xmlOutput = doXmlOutput;
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}
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}
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}
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