More smp cluster profiling
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97c2dc270c
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0668046407
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@ -497,9 +497,11 @@ object VexRiscvSmpClusterOpenSbi extends App{
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ram.memory.loadBin(0xC2000000l, "../buildroot/output/images/rootfs.cpio")
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import spinal.core.sim._
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var iMemReadBytes, dMemReadBytes, dMemWriteBytes, iMemSequencial,iMemRequests = 0l
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var iMemReadBytes, dMemReadBytes, dMemWriteBytes, iMemSequencial,iMemRequests, iMemPrefetchHit = 0l
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var reportTimer = 0
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var reportCycle = 0
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val iMemFetchDelta = mutable.HashMap[Long, Long]()
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var iMemFetchDeltaSorted : Seq[(Long, Long)] = null
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var dMemWrites, dMemWritesCached = 0l
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val dMemWriteCacheCtx = List(4,8,16,32,64).map(bytes => new {
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var counter = 0l
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@ -512,6 +514,7 @@ object VexRiscvSmpClusterOpenSbi extends App{
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val iMemCtx = Array.tabulate(cpuCount)(i => new {
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var sequencialPrediction = 0l
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val cache = dut.cpus(i).core.children.find(_.isInstanceOf[InstructionCache]).head.asInstanceOf[InstructionCache].io.cpu.decode
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var lastAddress = 0l
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})
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dut.clockDomain.onSamplings{
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for(i <- 0 until cpuCount; iMem = dut.io.iMems(i); ctx = iMemCtx(i)){
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@ -527,7 +530,6 @@ object VexRiscvSmpClusterOpenSbi extends App{
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val mask = ~(length-1)
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if(ctx.cache.cacheMiss.toBoolean) {
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iMemReadBytes += length
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iMemRequests += 1
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if ((address & mask) == (ctx.sequencialPrediction & mask)) {
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iMemSequencial += 1
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}
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@ -536,6 +538,18 @@ object VexRiscvSmpClusterOpenSbi extends App{
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ctx.sequencialPrediction = address + length
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}
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}
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if(iMem.cmd.valid.toBoolean && iMem.cmd.ready.toBoolean){
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val address = iMem.cmd.address.toLong
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iMemRequests += 1
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if(iMemCtx(i).lastAddress + ctx.cache.p.bytePerLine == address){
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iMemPrefetchHit += 1
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}
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val delta = address-iMemCtx(i).lastAddress
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iMemFetchDelta(delta) = iMemFetchDelta.getOrElse(delta, 0l) + 1l
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if(iMemRequests % 1000 == 999) iMemFetchDeltaSorted = iMemFetchDelta.toSeq.sortBy(_._1)
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iMemCtx(i).lastAddress = address
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}
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}
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if(dut.io.dMem.cmd.valid.toBoolean && dut.io.dMem.cmd.ready.toBoolean){
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if(dut.io.dMem.cmd.opcode.toInt == Bmb.Cmd.Opcode.WRITE){
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@ -561,7 +575,7 @@ object VexRiscvSmpClusterOpenSbi extends App{
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// println(f"\n** c=${reportCycle} ir=${iMemReadBytes*1e-6}%5.2f dr=${dMemReadBytes*1e-6}%5.2f dw=${dMemWriteBytes*1e-6}%5.2f **\n")
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csv.write(s"$reportCycle,$iMemReadBytes,$dMemReadBytes,$dMemWriteBytes,$iMemRequests,$iMemSequencial,$dMemWrites,${dMemWriteCacheCtx.map(_.counter).mkString(",")}\n")
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csv.write(s"$reportCycle,$iMemReadBytes,$dMemReadBytes,$dMemWriteBytes,$iMemRequests,$iMemSequencial,$dMemWrites,${dMemWriteCacheCtx.map(_.counter).mkString(",")},$iMemPrefetchHit\n")
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csv.flush()
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reportCycle = 0
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iMemReadBytes = 0
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@ -570,6 +584,7 @@ object VexRiscvSmpClusterOpenSbi extends App{
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iMemRequests = 0
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iMemSequencial = 0
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dMemWrites = 0
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iMemPrefetchHit = 0
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for(ctx <- dMemWriteCacheCtx) ctx.counter = 0
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}
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}
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