diff options
| -rw-r--r-- | src/cpu/o3/cpu.cc | 13 | ||||
| -rw-r--r-- | src/cpu/o3/cpu.hh | 3 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/cpu/o3/cpu.cc b/src/cpu/o3/cpu.cc index 819495d62..94fc5cdf3 100644 --- a/src/cpu/o3/cpu.cc +++ b/src/cpu/o3/cpu.cc @@ -442,6 +442,12 @@ FullO3CPU<Impl>::regStats() "to idling") .prereq(idleCycles); + quiesceCycles + .name(name() + ".quiesceCycles") + .desc("Total number of cycles that CPU has spent quiesced or waiting " + "for an interrupt") + .prereq(quiesceCycles); + // Number of Instructions simulated // -------------------------------- // Should probably be in Base CPU but need templated @@ -688,6 +694,8 @@ FullO3CPU<Impl>::activateContext(ThreadID tid, int delay) activityRec.activity(); fetch.wakeFromQuiesce(); + quiesceCycles += tickToCycles((curTick() - 1) - lastRunningCycle); + lastActivatedCycle = curTick(); _status = Running; @@ -722,6 +730,9 @@ FullO3CPU<Impl>::suspendContext(ThreadID tid) if ((activeThreads.size() == 1 && !deallocated) || activeThreads.size() == 0) unscheduleTickEvent(); + + DPRINTF(Quiesce, "Suspending Context\n"); + lastRunningCycle = curTick(); _status = Idle; } @@ -1205,6 +1216,8 @@ FullO3CPU<Impl>::takeOverFrom(BaseCPU *oldCPU) } if (!tickEvent.scheduled()) schedule(tickEvent, nextCycle()); + + lastRunningCycle = curTick(); } template <class Impl> diff --git a/src/cpu/o3/cpu.hh b/src/cpu/o3/cpu.hh index dd9f5d40f..b2606c1e2 100644 --- a/src/cpu/o3/cpu.hh +++ b/src/cpu/o3/cpu.hh @@ -720,6 +720,9 @@ class FullO3CPU : public BaseO3CPU Stats::Scalar timesIdled; /** Stat for total number of cycles the CPU spends descheduled. */ Stats::Scalar idleCycles; + /** Stat for total number of cycles the CPU spends descheduled due to a + * quiesce operation or waiting for an interrupt. */ + Stats::Scalar quiesceCycles; /** Stat for the number of committed instructions per thread. */ Stats::Vector committedInsts; /** Stat for the total number of committed instructions. */ |