diff options
Diffstat (limited to 'src/mem/ruby/profiler/MemCntrlProfiler.cc')
| -rw-r--r-- | src/mem/ruby/profiler/MemCntrlProfiler.cc | 199 |
1 files changed, 118 insertions, 81 deletions
diff --git a/src/mem/ruby/profiler/MemCntrlProfiler.cc b/src/mem/ruby/profiler/MemCntrlProfiler.cc index b41d7de78..e25719666 100644 --- a/src/mem/ruby/profiler/MemCntrlProfiler.cc +++ b/src/mem/ruby/profiler/MemCntrlProfiler.cc @@ -1,4 +1,3 @@ - /* * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood * All rights reserved. @@ -32,19 +31,14 @@ using namespace std; MemCntrlProfiler::MemCntrlProfiler(const string& description, - int banks_per_rank, - int ranks_per_dimm, - int dimms_per_channel) + int banks_per_rank, int ranks_per_dimm, int dimms_per_channel) { m_description = description; m_banks_per_rank = banks_per_rank; m_ranks_per_dimm = ranks_per_dimm; m_dimms_per_channel = dimms_per_channel; - int totalBanks = banks_per_rank * - ranks_per_dimm * - dimms_per_channel; - + int totalBanks = banks_per_rank * ranks_per_dimm * dimms_per_channel; m_memBankCount.setSize(totalBanks); clearStats(); @@ -54,50 +48,65 @@ MemCntrlProfiler::~MemCntrlProfiler() { } -void MemCntrlProfiler::printStats(ostream& out) const -{ - if (m_memReq || m_memRefresh) { // if there's a memory controller at all - uint64 total_stalls = m_memInputQ + m_memBankQ + m_memWaitCycles; - double stallsPerReq = total_stalls * 1.0 / m_memReq; - out << "Memory controller: " << m_description << ":" << endl; - out << " memory_total_requests: " << m_memReq << endl; // does not include refreshes - out << " memory_reads: " << m_memRead << endl; - out << " memory_writes: " << m_memWrite << endl; - out << " memory_refreshes: " << m_memRefresh << endl; - out << " memory_total_request_delays: " << total_stalls << endl; - out << " memory_delays_per_request: " << stallsPerReq << endl; - out << " memory_delays_in_input_queue: " << m_memInputQ << endl; - out << " memory_delays_behind_head_of_bank_queue: " << m_memBankQ << endl; - out << " memory_delays_stalled_at_head_of_bank_queue: " << m_memWaitCycles << endl; - // Note: The following "memory stalls" entries are a breakdown of the - // cycles which already showed up in m_memWaitCycles. The order is - // significant; it is the priority of attributing the cycles. - // For example, bank_busy is before arbitration because if the bank was - // busy, we didn't even check arbitration. - // Note: "not old enough" means that since we grouped waiting heads-of-queues - // into batches to avoid starvation, a request in a newer batch - // didn't try to arbitrate yet because there are older requests waiting. - out << " memory_stalls_for_bank_busy: " << m_memBankBusy << endl; - out << " memory_stalls_for_random_busy: " << m_memRandBusy << endl; - out << " memory_stalls_for_anti_starvation: " << m_memNotOld << endl; - out << " memory_stalls_for_arbitration: " << m_memArbWait << endl; - out << " memory_stalls_for_bus: " << m_memBusBusy << endl; - out << " memory_stalls_for_tfaw: " << m_memTfawBusy << endl; - out << " memory_stalls_for_read_write_turnaround: " << m_memReadWriteBusy << endl; - out << " memory_stalls_for_read_read_turnaround: " << m_memDataBusBusy << endl; - out << " accesses_per_bank: "; - for (int bank=0; bank < m_memBankCount.size(); bank++) { - out << m_memBankCount[bank] << " "; - } - } else { +void +MemCntrlProfiler::printStats(ostream& out) const +{ + if (!m_memReq && !m_memRefresh) { out << "Memory Controller: " << m_description - << " no stats recorded." << endl; - } + << " no stats recorded." << endl + << endl + << endl; + return; + } + + // if there's a memory controller at all + uint64 total_stalls = m_memInputQ + m_memBankQ + m_memWaitCycles; + double stallsPerReq = total_stalls * 1.0 / m_memReq; + out << "Memory controller: " << m_description << ":" << endl; + + // does not include refreshes + out << " memory_total_requests: " << m_memReq << endl; + out << " memory_reads: " << m_memRead << endl; + out << " memory_writes: " << m_memWrite << endl; + out << " memory_refreshes: " << m_memRefresh << endl; + out << " memory_total_request_delays: " << total_stalls << endl; + out << " memory_delays_per_request: " << stallsPerReq << endl; + out << " memory_delays_in_input_queue: " << m_memInputQ << endl; + out << " memory_delays_behind_head_of_bank_queue: " + << m_memBankQ << endl; + out << " memory_delays_stalled_at_head_of_bank_queue: " + << m_memWaitCycles << endl; + + // Note: The following "memory stalls" entries are a breakdown of + // the cycles which already showed up in m_memWaitCycles. The + // order is significant; it is the priority of attributing the + // cycles. For example, bank_busy is before arbitration because + // if the bank was busy, we didn't even check arbitration. + // Note: "not old enough" means that since we grouped waiting + // heads-of-queues into batches to avoid starvation, a request in + // a newer batch didn't try to arbitrate yet because there are + // older requests waiting. + out << " memory_stalls_for_bank_busy: " << m_memBankBusy << endl; + out << " memory_stalls_for_random_busy: " << m_memRandBusy << endl; + out << " memory_stalls_for_anti_starvation: " << m_memNotOld << endl; + out << " memory_stalls_for_arbitration: " << m_memArbWait << endl; + out << " memory_stalls_for_bus: " << m_memBusBusy << endl; + out << " memory_stalls_for_tfaw: " << m_memTfawBusy << endl; + out << " memory_stalls_for_read_write_turnaround: " + << m_memReadWriteBusy << endl; + out << " memory_stalls_for_read_read_turnaround: " + << m_memDataBusBusy << endl; + out << " accesses_per_bank: "; + + for (int bank = 0; bank < m_memBankCount.size(); bank++) { + out << m_memBankCount[bank] << " "; + } out << endl; out << endl; } -void MemCntrlProfiler::clearStats() +void +MemCntrlProfiler::clearStats() { m_memReq = 0; m_memBankBusy = 0; @@ -115,72 +124,100 @@ void MemCntrlProfiler::clearStats() m_memRandBusy = 0; m_memNotOld = 0; - for (int bank=0; - bank < m_memBankCount.size(); - bank++) { + for (int bank = 0; bank < m_memBankCount.size(); bank++) { m_memBankCount[bank] = 0; } } -void MemCntrlProfiler::profileMemReq(int bank) { - m_memReq++; - m_memBankCount[bank]++; +void +MemCntrlProfiler::profileMemReq(int bank) +{ + m_memReq++; + m_memBankCount[bank]++; } -void MemCntrlProfiler::profileMemBankBusy() { - m_memBankBusy++; +void +MemCntrlProfiler::profileMemBankBusy() +{ + m_memBankBusy++; } -void MemCntrlProfiler::profileMemBusBusy() { - m_memBusBusy++; +void +MemCntrlProfiler::profileMemBusBusy() +{ + m_memBusBusy++; } -void MemCntrlProfiler::profileMemReadWriteBusy() { - m_memReadWriteBusy++; +void +MemCntrlProfiler::profileMemReadWriteBusy() +{ + m_memReadWriteBusy++; } -void MemCntrlProfiler::profileMemDataBusBusy() { - m_memDataBusBusy++; +void +MemCntrlProfiler::profileMemDataBusBusy() +{ + m_memDataBusBusy++; } -void MemCntrlProfiler::profileMemTfawBusy() { - m_memTfawBusy++; +void +MemCntrlProfiler::profileMemTfawBusy() +{ + m_memTfawBusy++; } -void MemCntrlProfiler::profileMemRefresh() { - m_memRefresh++; +void +MemCntrlProfiler::profileMemRefresh() +{ + m_memRefresh++; } -void MemCntrlProfiler::profileMemRead() { - m_memRead++; +void +MemCntrlProfiler::profileMemRead() +{ + m_memRead++; } -void MemCntrlProfiler::profileMemWrite() { - m_memWrite++; +void +MemCntrlProfiler::profileMemWrite() +{ + m_memWrite++; } -void MemCntrlProfiler::profileMemWaitCycles(int cycles) { - m_memWaitCycles += cycles; +void +MemCntrlProfiler::profileMemWaitCycles(int cycles) +{ + m_memWaitCycles += cycles; } -void MemCntrlProfiler::profileMemInputQ(int cycles) { - m_memInputQ += cycles; +void +MemCntrlProfiler::profileMemInputQ(int cycles) +{ + m_memInputQ += cycles; } -void MemCntrlProfiler::profileMemBankQ(int cycles) { - m_memBankQ += cycles; +void +MemCntrlProfiler::profileMemBankQ(int cycles) +{ + m_memBankQ += cycles; } -void MemCntrlProfiler::profileMemArbWait(int cycles) { - m_memArbWait += cycles; +void +MemCntrlProfiler::profileMemArbWait(int cycles) +{ + m_memArbWait += cycles; } -void MemCntrlProfiler::profileMemRandBusy() { - m_memRandBusy++; +void +MemCntrlProfiler::profileMemRandBusy() +{ + m_memRandBusy++; } -void MemCntrlProfiler::profileMemNotOld() { - m_memNotOld++; +void +MemCntrlProfiler::profileMemNotOld() +{ + m_memNotOld++; } |