#include "params/WriteAllocator.hh"
#include "sim/core.hh"
-class BaseMasterPort;
-class BaseSlavePort;
-
using namespace std;
BaseCache::CacheSlavePort::CacheSlavePort(const std::string &_name,
noTargetMSHR(nullptr),
missCount(p->max_miss_count),
addrRanges(p->addr_ranges.begin(), p->addr_ranges.end()),
- system(p->system)
+ system(p->system),
+ stats(*this)
{
// the MSHR queue has no reserve entries as we check the MSHR
// queue on every single allocation, whereas the write queue has
pkt->print());
assert(pkt->req->masterId() < system->maxMasters());
- mshr_hits[pkt->cmdToIndex()][pkt->req->masterId()]++;
+ stats.cmdStats(pkt).mshr_hits[pkt->req->masterId()]++;
// We use forward_time here because it is the same
// considering new targets. We have multiple
} else {
// no MSHR
assert(pkt->req->masterId() < system->maxMasters());
- mshr_misses[pkt->cmdToIndex()][pkt->req->masterId()]++;
+ stats.cmdStats(pkt).mshr_misses[pkt->req->masterId()]++;
if (pkt->isEviction() || pkt->cmd == MemCmd::WriteClean) {
// We use forward_time here because there is an
}
// Initial target is used just for stats
- QueueEntry::Target *initial_tgt = mshr->getTarget();
- int stats_cmd_idx = initial_tgt->pkt->cmdToIndex();
- Tick miss_latency = curTick() - initial_tgt->recvTime;
-
+ const QueueEntry::Target *initial_tgt = mshr->getTarget();
+ const Tick miss_latency = curTick() - initial_tgt->recvTime;
if (pkt->req->isUncacheable()) {
assert(pkt->req->masterId() < system->maxMasters());
- mshr_uncacheable_lat[stats_cmd_idx][pkt->req->masterId()] +=
- miss_latency;
+ stats.cmdStats(initial_tgt->pkt)
+ .mshr_uncacheable_lat[pkt->req->masterId()] += miss_latency;
} else {
assert(pkt->req->masterId() < system->maxMasters());
- mshr_miss_latency[stats_cmd_idx][pkt->req->masterId()] +=
- miss_latency;
+ stats.cmdStats(initial_tgt->pkt)
+ .mshr_miss_latency[pkt->req->masterId()] += miss_latency;
}
PacketList writebacks;
// Update statistic on number of prefetches issued
// (hwpf_mshr_misses)
assert(pkt->req->masterId() < system->maxMasters());
- mshr_misses[pkt->cmdToIndex()][pkt->req->masterId()]++;
+ stats.cmdStats(pkt).mshr_misses[pkt->req->masterId()]++;
// allocate an MSHR and return it, note
// that we send the packet straight away, so do not
}
// Update the number of data expansions
- dataExpansions++;
+ stats.dataExpansions++;
DPRINTF(CacheComp, "Data expansion: expanding [%s] from %d to %d bits"
"\n", blk->print(), prev_size, compression_size);
for (const auto& evict_blk : evict_blks) {
if (evict_blk->isValid()) {
if (evict_blk->wasPrefetched()) {
- unusedPrefetches++;
+ stats.unusedPrefetches++;
}
evictBlock(evict_blk, writebacks);
}
}
}
+ // The critical latency part of a write depends only on the tag access
+ if (pkt->isWrite()) {
+ lat = calculateTagOnlyLatency(pkt->headerDelay, tag_latency);
+ }
+
// Writeback handling is special case. We can write the block into
// the cache without having a writeable copy (or any copy at all).
if (pkt->isWriteback()) {
// and we just had to wait for the time to find a match in the
// MSHR. As of now assume a mshr queue search takes as long as
// a tag lookup for simplicity.
- lat = calculateTagOnlyLatency(pkt->headerDelay, tag_latency);
-
return true;
}
if (!blk) {
// no replaceable block available: give up, fwd to next level.
incMissCount(pkt);
-
- // A writeback searches for the block, then writes the data.
- // As the block could not be found, it was a tag-only access.
- lat = calculateTagOnlyLatency(pkt->headerDelay, tag_latency);
-
return false;
}
// If that is the case we might need to evict blocks.
if (!updateCompressionData(blk, pkt->getConstPtr<uint64_t>(),
writebacks)) {
- // This is a failed data expansion (write), which happened
- // after finding the replacement entries and accessing the
- // block's data. There were no replaceable entries available
- // to make room for the expanded block, and since it does not
- // fit anymore and it has been properly updated to contain
- // the new data, forward it to the next level
- lat = calculateAccessLatency(blk, pkt->headerDelay,
- tag_latency);
invalidateBlock(blk);
return false;
}
DPRINTF(Cache, "%s new state is %s\n", __func__, blk->print());
incHitCount(pkt);
- // A writeback searches for the block, then writes the data
- lat = calculateAccessLatency(blk, pkt->headerDelay, tag_latency);
-
// When the packet metadata arrives, the tag lookup will be done while
// the payload is arriving. Then the block will be ready to access as
// soon as the fill is done
if (!blk) {
if (pkt->writeThrough()) {
- // A writeback searches for the block, then writes the data.
- // As the block could not be found, it was a tag-only access.
- lat = calculateTagOnlyLatency(pkt->headerDelay, tag_latency);
-
// if this is a write through packet, we don't try to
// allocate if the block is not present
return false;
// no replaceable block available: give up, fwd to
// next level.
incMissCount(pkt);
-
- // A writeback searches for the block, then writes the
- // data. As the block could not be found, it was a tag-only
- // access.
- lat = calculateTagOnlyLatency(pkt->headerDelay,
- tag_latency);
-
return false;
}
// If that is the case we might need to evict blocks.
if (!updateCompressionData(blk, pkt->getConstPtr<uint64_t>(),
writebacks)) {
- // This is a failed data expansion (write), which happened
- // after finding the replacement entries and accessing the
- // block's data. There were no replaceable entries available
- // to make room for the expanded block, and since it does not
- // fit anymore and it has been properly updated to contain
- // the new data, forward it to the next level
- lat = calculateAccessLatency(blk, pkt->headerDelay,
- tag_latency);
invalidateBlock(blk);
return false;
}
incHitCount(pkt);
- // A writeback searches for the block, then writes the data
- lat = calculateAccessLatency(blk, pkt->headerDelay, tag_latency);
-
// When the packet metadata arrives, the tag lookup will be done while
// the payload is arriving. Then the block will be ready to access as
// soon as the fill is done
incHitCount(pkt);
// Calculate access latency based on the need to access the data array
- if (pkt->isRead() || pkt->isWrite()) {
+ if (pkt->isRead()) {
lat = calculateAccessLatency(blk, pkt->headerDelay, tag_latency);
// When a block is compressed, it must first be decompressed
// before being read. This adds to the access latency.
- if (compressor && pkt->isRead()) {
+ if (compressor) {
lat += compressor->getDecompressionLatency(blk);
}
} else {
chatty_assert(!isReadOnly, "Should never see dirty snoop response "
"in read-only cache %s\n", name());
- } else if (pkt->cmd.isSWPrefetch() && pkt->needsWritable()) {
- // All other copies of the block were invalidated and we
- // have an exclusive copy.
-
- // The coherence protocol assumes that if we fetched an
- // exclusive copy of the block, we have the intention to
- // modify it. Therefore the MSHR for the PrefetchExReq has
- // been the point of ordering and this cache has commited
- // to respond to snoops for the block.
- //
- // In most cases this is true anyway - a PrefetchExReq
- // will be followed by a WriteReq. However, if that
- // doesn't happen, the block is not marked as dirty and
- // the cache doesn't respond to snoops that has committed
- // to do so.
- //
- // To avoid deadlocks in cases where there is a snoop
- // between the PrefetchExReq and the expected WriteReq, we
- // proactively mark the block as Dirty.
-
- blk->status |= BlkDirty;
-
- panic_if(!isReadOnly, "Prefetch exclusive requests from read-only "
- "cache %s\n", name());
}
}
addr, is_secure);
if (blk->wasPrefetched()) {
- unusedPrefetches++;
+ stats.unusedPrefetches++;
}
evictBlock(blk, writebacks);
}
}
- replacements++;
+ stats.replacements++;
}
// If using a compressor, set compression data. This must be done before
"Writeback from read-only cache");
assert(blk && blk->isValid() && (blk->isDirty() || writebackClean));
- writebacks[Request::wbMasterId]++;
+ stats.writebacks[Request::wbMasterId]++;
RequestPtr req = std::make_shared<Request>(
regenerateBlkAddr(blk), blkSize, 0, Request::wbMasterId);
}
}
-void
-BaseCache::regStats()
+
+BaseCache::CacheCmdStats::CacheCmdStats(BaseCache &c,
+ const std::string &name)
+ : Stats::Group(&c), cache(c),
+
+ hits(
+ this, (name + "_hits").c_str(),
+ ("number of " + name + " hits").c_str()),
+ misses(
+ this, (name + "_misses").c_str(),
+ ("number of " + name + " misses").c_str()),
+ missLatency(
+ this, (name + "_miss_latency").c_str(),
+ ("number of " + name + " miss cycles").c_str()),
+ accesses(
+ this, (name + "_accesses").c_str(),
+ ("number of " + name + " accesses(hits+misses)").c_str()),
+ missRate(
+ this, (name + "_miss_rate").c_str(),
+ ("miss rate for " + name + " accesses").c_str()),
+ avgMissLatency(
+ this, (name + "_avg_miss_latency").c_str(),
+ ("average " + name + " miss latency").c_str()),
+ mshr_hits(
+ this, (name + "_mshr_hits").c_str(),
+ ("number of " + name + " MSHR hits").c_str()),
+ mshr_misses(
+ this, (name + "_mshr_misses").c_str(),
+ ("number of " + name + " MSHR misses").c_str()),
+ mshr_uncacheable(
+ this, (name + "_mshr_uncacheable").c_str(),
+ ("number of " + name + " MSHR uncacheable").c_str()),
+ mshr_miss_latency(
+ this, (name + "_mshr_miss_latency").c_str(),
+ ("number of " + name + " MSHR miss cycles").c_str()),
+ mshr_uncacheable_lat(
+ this, (name + "_mshr_uncacheable_latency").c_str(),
+ ("number of " + name + " MSHR uncacheable cycles").c_str()),
+ mshrMissRate(
+ this, (name + "_mshr_miss_rate").c_str(),
+ ("mshr miss rate for " + name + " accesses").c_str()),
+ avgMshrMissLatency(
+ this, (name + "_avg_mshr_miss_latency").c_str(),
+ ("average " + name + " mshr miss latency").c_str()),
+ avgMshrUncacheableLatency(
+ this, (name + "_avg_mshr_uncacheable_latency").c_str(),
+ ("average " + name + " mshr uncacheable latency").c_str())
{
- ClockedObject::regStats();
+}
+void
+BaseCache::CacheCmdStats::regStatsFromParent()
+{
using namespace Stats;
- // Hit statistics
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- hits[access_idx]
- .init(system->maxMasters())
- .name(name() + "." + cstr + "_hits")
- .desc("number of " + cstr + " hits")
- .flags(total | nozero | nonan)
- ;
- for (int i = 0; i < system->maxMasters(); i++) {
- hits[access_idx].subname(i, system->getMasterName(i));
- }
- }
+ Stats::Group::regStats();
+ System *system = cache.system;
+ const auto max_masters = system->maxMasters();
-// These macros make it easier to sum the right subset of commands and
-// to change the subset of commands that are considered "demand" vs
-// "non-demand"
-#define SUM_DEMAND(s) \
- (s[MemCmd::ReadReq] + s[MemCmd::WriteReq] + s[MemCmd::WriteLineReq] + \
- s[MemCmd::ReadExReq] + s[MemCmd::ReadCleanReq] + s[MemCmd::ReadSharedReq])
-
-// should writebacks be included here? prior code was inconsistent...
-#define SUM_NON_DEMAND(s) \
- (s[MemCmd::SoftPFReq] + s[MemCmd::HardPFReq] + s[MemCmd::SoftPFExReq])
+ hits
+ .init(max_masters)
+ .flags(total | nozero | nonan)
+ ;
+ for (int i = 0; i < max_masters; i++) {
+ hits.subname(i, system->getMasterName(i));
+ }
- demandHits
- .name(name() + ".demand_hits")
- .desc("number of demand (read+write) hits")
+ // Miss statistics
+ misses
+ .init(max_masters)
.flags(total | nozero | nonan)
;
- demandHits = SUM_DEMAND(hits);
- for (int i = 0; i < system->maxMasters(); i++) {
- demandHits.subname(i, system->getMasterName(i));
+ for (int i = 0; i < max_masters; i++) {
+ misses.subname(i, system->getMasterName(i));
}
- overallHits
- .name(name() + ".overall_hits")
- .desc("number of overall hits")
+ // Miss latency statistics
+ missLatency
+ .init(max_masters)
.flags(total | nozero | nonan)
;
- overallHits = demandHits + SUM_NON_DEMAND(hits);
- for (int i = 0; i < system->maxMasters(); i++) {
- overallHits.subname(i, system->getMasterName(i));
+ for (int i = 0; i < max_masters; i++) {
+ missLatency.subname(i, system->getMasterName(i));
}
- // Miss statistics
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- misses[access_idx]
- .init(system->maxMasters())
- .name(name() + "." + cstr + "_misses")
- .desc("number of " + cstr + " misses")
- .flags(total | nozero | nonan)
- ;
- for (int i = 0; i < system->maxMasters(); i++) {
- misses[access_idx].subname(i, system->getMasterName(i));
- }
+ // access formulas
+ accesses.flags(total | nozero | nonan);
+ accesses = hits + misses;
+ for (int i = 0; i < max_masters; i++) {
+ accesses.subname(i, system->getMasterName(i));
+ }
+
+ // miss rate formulas
+ missRate.flags(total | nozero | nonan);
+ missRate = misses / accesses;
+ for (int i = 0; i < max_masters; i++) {
+ missRate.subname(i, system->getMasterName(i));
+ }
+
+ // miss latency formulas
+ avgMissLatency.flags(total | nozero | nonan);
+ avgMissLatency = missLatency / misses;
+ for (int i = 0; i < max_masters; i++) {
+ avgMissLatency.subname(i, system->getMasterName(i));
}
- demandMisses
- .name(name() + ".demand_misses")
- .desc("number of demand (read+write) misses")
+ // MSHR statistics
+ // MSHR hit statistics
+ mshr_hits
+ .init(max_masters)
.flags(total | nozero | nonan)
;
- demandMisses = SUM_DEMAND(misses);
- for (int i = 0; i < system->maxMasters(); i++) {
- demandMisses.subname(i, system->getMasterName(i));
+ for (int i = 0; i < max_masters; i++) {
+ mshr_hits.subname(i, system->getMasterName(i));
}
- overallMisses
- .name(name() + ".overall_misses")
- .desc("number of overall misses")
+ // MSHR miss statistics
+ mshr_misses
+ .init(max_masters)
.flags(total | nozero | nonan)
;
- overallMisses = demandMisses + SUM_NON_DEMAND(misses);
- for (int i = 0; i < system->maxMasters(); i++) {
- overallMisses.subname(i, system->getMasterName(i));
+ for (int i = 0; i < max_masters; i++) {
+ mshr_misses.subname(i, system->getMasterName(i));
}
- // Miss latency statistics
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- missLatency[access_idx]
- .init(system->maxMasters())
- .name(name() + "." + cstr + "_miss_latency")
- .desc("number of " + cstr + " miss cycles")
- .flags(total | nozero | nonan)
- ;
- for (int i = 0; i < system->maxMasters(); i++) {
- missLatency[access_idx].subname(i, system->getMasterName(i));
- }
+ // MSHR miss latency statistics
+ mshr_miss_latency
+ .init(max_masters)
+ .flags(total | nozero | nonan)
+ ;
+ for (int i = 0; i < max_masters; i++) {
+ mshr_miss_latency.subname(i, system->getMasterName(i));
}
- demandMissLatency
- .name(name() + ".demand_miss_latency")
- .desc("number of demand (read+write) miss cycles")
+ // MSHR uncacheable statistics
+ mshr_uncacheable
+ .init(max_masters)
.flags(total | nozero | nonan)
;
- demandMissLatency = SUM_DEMAND(missLatency);
- for (int i = 0; i < system->maxMasters(); i++) {
- demandMissLatency.subname(i, system->getMasterName(i));
+ for (int i = 0; i < max_masters; i++) {
+ mshr_uncacheable.subname(i, system->getMasterName(i));
}
- overallMissLatency
- .name(name() + ".overall_miss_latency")
- .desc("number of overall miss cycles")
+ // MSHR miss latency statistics
+ mshr_uncacheable_lat
+ .init(max_masters)
.flags(total | nozero | nonan)
;
- overallMissLatency = demandMissLatency + SUM_NON_DEMAND(missLatency);
- for (int i = 0; i < system->maxMasters(); i++) {
- overallMissLatency.subname(i, system->getMasterName(i));
+ for (int i = 0; i < max_masters; i++) {
+ mshr_uncacheable_lat.subname(i, system->getMasterName(i));
}
- // access formulas
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- accesses[access_idx]
- .name(name() + "." + cstr + "_accesses")
- .desc("number of " + cstr + " accesses(hits+misses)")
- .flags(total | nozero | nonan)
- ;
- accesses[access_idx] = hits[access_idx] + misses[access_idx];
-
- for (int i = 0; i < system->maxMasters(); i++) {
- accesses[access_idx].subname(i, system->getMasterName(i));
- }
+ // MSHR miss rate formulas
+ mshrMissRate.flags(total | nozero | nonan);
+ mshrMissRate = mshr_misses / accesses;
+
+ for (int i = 0; i < max_masters; i++) {
+ mshrMissRate.subname(i, system->getMasterName(i));
}
- demandAccesses
- .name(name() + ".demand_accesses")
- .desc("number of demand (read+write) accesses")
- .flags(total | nozero | nonan)
- ;
+ // mshrMiss latency formulas
+ avgMshrMissLatency.flags(total | nozero | nonan);
+ avgMshrMissLatency = mshr_miss_latency / mshr_misses;
+ for (int i = 0; i < max_masters; i++) {
+ avgMshrMissLatency.subname(i, system->getMasterName(i));
+ }
+
+ // mshrUncacheable latency formulas
+ avgMshrUncacheableLatency.flags(total | nozero | nonan);
+ avgMshrUncacheableLatency = mshr_uncacheable_lat / mshr_uncacheable;
+ for (int i = 0; i < max_masters; i++) {
+ avgMshrUncacheableLatency.subname(i, system->getMasterName(i));
+ }
+}
+
+BaseCache::CacheStats::CacheStats(BaseCache &c)
+ : Stats::Group(&c), cache(c),
+
+ demandHits(this, "demand_hits", "number of demand (read+write) hits"),
+
+ overallHits(this, "overall_hits", "number of overall hits"),
+ demandMisses(this, "demand_misses",
+ "number of demand (read+write) misses"),
+ overallMisses(this, "overall_misses", "number of overall misses"),
+ demandMissLatency(this, "demand_miss_latency",
+ "number of demand (read+write) miss cycles"),
+ overallMissLatency(this, "overall_miss_latency",
+ "number of overall miss cycles"),
+ demandAccesses(this, "demand_accesses",
+ "number of demand (read+write) accesses"),
+ overallAccesses(this, "overall_accesses",
+ "number of overall (read+write) accesses"),
+ demandMissRate(this, "demand_miss_rate",
+ "miss rate for demand accesses"),
+ overallMissRate(this, "overall_miss_rate",
+ "miss rate for overall accesses"),
+ demandAvgMissLatency(this, "demand_avg_miss_latency",
+ "average overall miss latency"),
+ overallAvgMissLatency(this, "overall_avg_miss_latency",
+ "average overall miss latency"),
+ blocked_cycles(this, "blocked_cycles",
+ "number of cycles access was blocked"),
+ blocked_causes(this, "blocked", "number of cycles access was blocked"),
+ avg_blocked(this, "avg_blocked_cycles",
+ "average number of cycles each access was blocked"),
+ unusedPrefetches(this, "unused_prefetches",
+ "number of HardPF blocks evicted w/o reference"),
+ writebacks(this, "writebacks", "number of writebacks"),
+ demandMshrHits(this, "demand_mshr_hits",
+ "number of demand (read+write) MSHR hits"),
+ overallMshrHits(this, "overall_mshr_hits",
+ "number of overall MSHR hits"),
+ demandMshrMisses(this, "demand_mshr_misses",
+ "number of demand (read+write) MSHR misses"),
+ overallMshrMisses(this, "overall_mshr_misses",
+ "number of overall MSHR misses"),
+ overallMshrUncacheable(this, "overall_mshr_uncacheable_misses",
+ "number of overall MSHR uncacheable misses"),
+ demandMshrMissLatency(this, "demand_mshr_miss_latency",
+ "number of demand (read+write) MSHR miss cycles"),
+ overallMshrMissLatency(this, "overall_mshr_miss_latency",
+ "number of overall MSHR miss cycles"),
+ overallMshrUncacheableLatency(this, "overall_mshr_uncacheable_latency",
+ "number of overall MSHR uncacheable cycles"),
+ demandMshrMissRate(this, "demand_mshr_miss_rate",
+ "mshr miss rate for demand accesses"),
+ overallMshrMissRate(this, "overall_mshr_miss_rate",
+ "mshr miss rate for overall accesses"),
+ demandAvgMshrMissLatency(this, "demand_avg_mshr_miss_latency",
+ "average overall mshr miss latency"),
+ overallAvgMshrMissLatency(this, "overall_avg_mshr_miss_latency",
+ "average overall mshr miss latency"),
+ overallAvgMshrUncacheableLatency(
+ this, "overall_avg_mshr_uncacheable_latency",
+ "average overall mshr uncacheable latency"),
+ replacements(this, "replacements", "number of replacements"),
+
+ dataExpansions(this, "data_expansions", "number of data expansions"),
+ cmd(MemCmd::NUM_MEM_CMDS)
+{
+ for (int idx = 0; idx < MemCmd::NUM_MEM_CMDS; ++idx)
+ cmd[idx].reset(new CacheCmdStats(c, MemCmd(idx).toString()));
+}
+
+void
+BaseCache::CacheStats::regStats()
+{
+ using namespace Stats;
+
+ Stats::Group::regStats();
+
+ System *system = cache.system;
+ const auto max_masters = system->maxMasters();
+
+ for (auto &cs : cmd)
+ cs->regStatsFromParent();
+
+// These macros make it easier to sum the right subset of commands and
+// to change the subset of commands that are considered "demand" vs
+// "non-demand"
+#define SUM_DEMAND(s) \
+ (cmd[MemCmd::ReadReq]->s + cmd[MemCmd::WriteReq]->s + \
+ cmd[MemCmd::WriteLineReq]->s + cmd[MemCmd::ReadExReq]->s + \
+ cmd[MemCmd::ReadCleanReq]->s + cmd[MemCmd::ReadSharedReq]->s)
+
+// should writebacks be included here? prior code was inconsistent...
+#define SUM_NON_DEMAND(s) \
+ (cmd[MemCmd::SoftPFReq]->s + cmd[MemCmd::HardPFReq]->s + \
+ cmd[MemCmd::SoftPFExReq]->s)
+
+ demandHits.flags(total | nozero | nonan);
+ demandHits = SUM_DEMAND(hits);
+ for (int i = 0; i < max_masters; i++) {
+ demandHits.subname(i, system->getMasterName(i));
+ }
+
+ overallHits.flags(total | nozero | nonan);
+ overallHits = demandHits + SUM_NON_DEMAND(hits);
+ for (int i = 0; i < max_masters; i++) {
+ overallHits.subname(i, system->getMasterName(i));
+ }
+
+ demandMisses.flags(total | nozero | nonan);
+ demandMisses = SUM_DEMAND(misses);
+ for (int i = 0; i < max_masters; i++) {
+ demandMisses.subname(i, system->getMasterName(i));
+ }
+
+ overallMisses.flags(total | nozero | nonan);
+ overallMisses = demandMisses + SUM_NON_DEMAND(misses);
+ for (int i = 0; i < max_masters; i++) {
+ overallMisses.subname(i, system->getMasterName(i));
+ }
+
+ demandMissLatency.flags(total | nozero | nonan);
+ demandMissLatency = SUM_DEMAND(missLatency);
+ for (int i = 0; i < max_masters; i++) {
+ demandMissLatency.subname(i, system->getMasterName(i));
+ }
+
+ overallMissLatency.flags(total | nozero | nonan);
+ overallMissLatency = demandMissLatency + SUM_NON_DEMAND(missLatency);
+ for (int i = 0; i < max_masters; i++) {
+ overallMissLatency.subname(i, system->getMasterName(i));
+ }
+
+ demandAccesses.flags(total | nozero | nonan);
demandAccesses = demandHits + demandMisses;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
demandAccesses.subname(i, system->getMasterName(i));
}
- overallAccesses
- .name(name() + ".overall_accesses")
- .desc("number of overall (read+write) accesses")
- .flags(total | nozero | nonan)
- ;
+ overallAccesses.flags(total | nozero | nonan);
overallAccesses = overallHits + overallMisses;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallAccesses.subname(i, system->getMasterName(i));
}
- // miss rate formulas
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- missRate[access_idx]
- .name(name() + "." + cstr + "_miss_rate")
- .desc("miss rate for " + cstr + " accesses")
- .flags(total | nozero | nonan)
- ;
- missRate[access_idx] = misses[access_idx] / accesses[access_idx];
-
- for (int i = 0; i < system->maxMasters(); i++) {
- missRate[access_idx].subname(i, system->getMasterName(i));
- }
- }
-
- demandMissRate
- .name(name() + ".demand_miss_rate")
- .desc("miss rate for demand accesses")
- .flags(total | nozero | nonan)
- ;
+ demandMissRate.flags(total | nozero | nonan);
demandMissRate = demandMisses / demandAccesses;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
demandMissRate.subname(i, system->getMasterName(i));
}
- overallMissRate
- .name(name() + ".overall_miss_rate")
- .desc("miss rate for overall accesses")
- .flags(total | nozero | nonan)
- ;
+ overallMissRate.flags(total | nozero | nonan);
overallMissRate = overallMisses / overallAccesses;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallMissRate.subname(i, system->getMasterName(i));
}
- // miss latency formulas
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- avgMissLatency[access_idx]
- .name(name() + "." + cstr + "_avg_miss_latency")
- .desc("average " + cstr + " miss latency")
- .flags(total | nozero | nonan)
- ;
- avgMissLatency[access_idx] =
- missLatency[access_idx] / misses[access_idx];
-
- for (int i = 0; i < system->maxMasters(); i++) {
- avgMissLatency[access_idx].subname(i, system->getMasterName(i));
- }
- }
-
- demandAvgMissLatency
- .name(name() + ".demand_avg_miss_latency")
- .desc("average overall miss latency")
- .flags(total | nozero | nonan)
- ;
+ demandAvgMissLatency.flags(total | nozero | nonan);
demandAvgMissLatency = demandMissLatency / demandMisses;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
demandAvgMissLatency.subname(i, system->getMasterName(i));
}
- overallAvgMissLatency
- .name(name() + ".overall_avg_miss_latency")
- .desc("average overall miss latency")
- .flags(total | nozero | nonan)
- ;
+ overallAvgMissLatency.flags(total | nozero | nonan);
overallAvgMissLatency = overallMissLatency / overallMisses;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallAvgMissLatency.subname(i, system->getMasterName(i));
}
blocked_cycles.init(NUM_BLOCKED_CAUSES);
blocked_cycles
- .name(name() + ".blocked_cycles")
- .desc("number of cycles access was blocked")
.subname(Blocked_NoMSHRs, "no_mshrs")
.subname(Blocked_NoTargets, "no_targets")
;
blocked_causes.init(NUM_BLOCKED_CAUSES);
blocked_causes
- .name(name() + ".blocked")
- .desc("number of cycles access was blocked")
.subname(Blocked_NoMSHRs, "no_mshrs")
.subname(Blocked_NoTargets, "no_targets")
;
avg_blocked
- .name(name() + ".avg_blocked_cycles")
- .desc("average number of cycles each access was blocked")
.subname(Blocked_NoMSHRs, "no_mshrs")
.subname(Blocked_NoTargets, "no_targets")
;
-
avg_blocked = blocked_cycles / blocked_causes;
- unusedPrefetches
- .name(name() + ".unused_prefetches")
- .desc("number of HardPF blocks evicted w/o reference")
- .flags(nozero)
- ;
+ unusedPrefetches.flags(nozero);
writebacks
- .init(system->maxMasters())
- .name(name() + ".writebacks")
- .desc("number of writebacks")
+ .init(max_masters)
.flags(total | nozero | nonan)
;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
writebacks.subname(i, system->getMasterName(i));
}
- // MSHR statistics
- // MSHR hit statistics
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- mshr_hits[access_idx]
- .init(system->maxMasters())
- .name(name() + "." + cstr + "_mshr_hits")
- .desc("number of " + cstr + " MSHR hits")
- .flags(total | nozero | nonan)
- ;
- for (int i = 0; i < system->maxMasters(); i++) {
- mshr_hits[access_idx].subname(i, system->getMasterName(i));
- }
- }
-
- demandMshrHits
- .name(name() + ".demand_mshr_hits")
- .desc("number of demand (read+write) MSHR hits")
- .flags(total | nozero | nonan)
- ;
+ demandMshrHits.flags(total | nozero | nonan);
demandMshrHits = SUM_DEMAND(mshr_hits);
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
demandMshrHits.subname(i, system->getMasterName(i));
}
- overallMshrHits
- .name(name() + ".overall_mshr_hits")
- .desc("number of overall MSHR hits")
- .flags(total | nozero | nonan)
- ;
+ overallMshrHits.flags(total | nozero | nonan);
overallMshrHits = demandMshrHits + SUM_NON_DEMAND(mshr_hits);
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallMshrHits.subname(i, system->getMasterName(i));
}
- // MSHR miss statistics
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- mshr_misses[access_idx]
- .init(system->maxMasters())
- .name(name() + "." + cstr + "_mshr_misses")
- .desc("number of " + cstr + " MSHR misses")
- .flags(total | nozero | nonan)
- ;
- for (int i = 0; i < system->maxMasters(); i++) {
- mshr_misses[access_idx].subname(i, system->getMasterName(i));
- }
- }
-
- demandMshrMisses
- .name(name() + ".demand_mshr_misses")
- .desc("number of demand (read+write) MSHR misses")
- .flags(total | nozero | nonan)
- ;
+ demandMshrMisses.flags(total | nozero | nonan);
demandMshrMisses = SUM_DEMAND(mshr_misses);
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
demandMshrMisses.subname(i, system->getMasterName(i));
}
- overallMshrMisses
- .name(name() + ".overall_mshr_misses")
- .desc("number of overall MSHR misses")
- .flags(total | nozero | nonan)
- ;
+ overallMshrMisses.flags(total | nozero | nonan);
overallMshrMisses = demandMshrMisses + SUM_NON_DEMAND(mshr_misses);
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallMshrMisses.subname(i, system->getMasterName(i));
}
- // MSHR miss latency statistics
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- mshr_miss_latency[access_idx]
- .init(system->maxMasters())
- .name(name() + "." + cstr + "_mshr_miss_latency")
- .desc("number of " + cstr + " MSHR miss cycles")
- .flags(total | nozero | nonan)
- ;
- for (int i = 0; i < system->maxMasters(); i++) {
- mshr_miss_latency[access_idx].subname(i, system->getMasterName(i));
- }
- }
-
- demandMshrMissLatency
- .name(name() + ".demand_mshr_miss_latency")
- .desc("number of demand (read+write) MSHR miss cycles")
- .flags(total | nozero | nonan)
- ;
+ demandMshrMissLatency.flags(total | nozero | nonan);
demandMshrMissLatency = SUM_DEMAND(mshr_miss_latency);
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
demandMshrMissLatency.subname(i, system->getMasterName(i));
}
- overallMshrMissLatency
- .name(name() + ".overall_mshr_miss_latency")
- .desc("number of overall MSHR miss cycles")
- .flags(total | nozero | nonan)
- ;
+ overallMshrMissLatency.flags(total | nozero | nonan);
overallMshrMissLatency =
demandMshrMissLatency + SUM_NON_DEMAND(mshr_miss_latency);
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallMshrMissLatency.subname(i, system->getMasterName(i));
}
- // MSHR uncacheable statistics
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- mshr_uncacheable[access_idx]
- .init(system->maxMasters())
- .name(name() + "." + cstr + "_mshr_uncacheable")
- .desc("number of " + cstr + " MSHR uncacheable")
- .flags(total | nozero | nonan)
- ;
- for (int i = 0; i < system->maxMasters(); i++) {
- mshr_uncacheable[access_idx].subname(i, system->getMasterName(i));
- }
- }
-
- overallMshrUncacheable
- .name(name() + ".overall_mshr_uncacheable_misses")
- .desc("number of overall MSHR uncacheable misses")
- .flags(total | nozero | nonan)
- ;
+ overallMshrUncacheable.flags(total | nozero | nonan);
overallMshrUncacheable =
SUM_DEMAND(mshr_uncacheable) + SUM_NON_DEMAND(mshr_uncacheable);
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallMshrUncacheable.subname(i, system->getMasterName(i));
}
- // MSHR miss latency statistics
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- mshr_uncacheable_lat[access_idx]
- .init(system->maxMasters())
- .name(name() + "." + cstr + "_mshr_uncacheable_latency")
- .desc("number of " + cstr + " MSHR uncacheable cycles")
- .flags(total | nozero | nonan)
- ;
- for (int i = 0; i < system->maxMasters(); i++) {
- mshr_uncacheable_lat[access_idx].subname(
- i, system->getMasterName(i));
- }
- }
- overallMshrUncacheableLatency
- .name(name() + ".overall_mshr_uncacheable_latency")
- .desc("number of overall MSHR uncacheable cycles")
- .flags(total | nozero | nonan)
- ;
+ overallMshrUncacheableLatency.flags(total | nozero | nonan);
overallMshrUncacheableLatency =
SUM_DEMAND(mshr_uncacheable_lat) +
SUM_NON_DEMAND(mshr_uncacheable_lat);
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallMshrUncacheableLatency.subname(i, system->getMasterName(i));
}
- // MSHR miss rate formulas
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- mshrMissRate[access_idx]
- .name(name() + "." + cstr + "_mshr_miss_rate")
- .desc("mshr miss rate for " + cstr + " accesses")
- .flags(total | nozero | nonan)
- ;
- mshrMissRate[access_idx] =
- mshr_misses[access_idx] / accesses[access_idx];
-
- for (int i = 0; i < system->maxMasters(); i++) {
- mshrMissRate[access_idx].subname(i, system->getMasterName(i));
- }
- }
-
- demandMshrMissRate
- .name(name() + ".demand_mshr_miss_rate")
- .desc("mshr miss rate for demand accesses")
- .flags(total | nozero | nonan)
- ;
+ demandMshrMissRate.flags(total | nozero | nonan);
demandMshrMissRate = demandMshrMisses / demandAccesses;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
demandMshrMissRate.subname(i, system->getMasterName(i));
}
- overallMshrMissRate
- .name(name() + ".overall_mshr_miss_rate")
- .desc("mshr miss rate for overall accesses")
- .flags(total | nozero | nonan)
- ;
+ overallMshrMissRate.flags(total | nozero | nonan);
overallMshrMissRate = overallMshrMisses / overallAccesses;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallMshrMissRate.subname(i, system->getMasterName(i));
}
- // mshrMiss latency formulas
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- avgMshrMissLatency[access_idx]
- .name(name() + "." + cstr + "_avg_mshr_miss_latency")
- .desc("average " + cstr + " mshr miss latency")
- .flags(total | nozero | nonan)
- ;
- avgMshrMissLatency[access_idx] =
- mshr_miss_latency[access_idx] / mshr_misses[access_idx];
-
- for (int i = 0; i < system->maxMasters(); i++) {
- avgMshrMissLatency[access_idx].subname(
- i, system->getMasterName(i));
- }
- }
-
- demandAvgMshrMissLatency
- .name(name() + ".demand_avg_mshr_miss_latency")
- .desc("average overall mshr miss latency")
- .flags(total | nozero | nonan)
- ;
+ demandAvgMshrMissLatency.flags(total | nozero | nonan);
demandAvgMshrMissLatency = demandMshrMissLatency / demandMshrMisses;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
demandAvgMshrMissLatency.subname(i, system->getMasterName(i));
}
- overallAvgMshrMissLatency
- .name(name() + ".overall_avg_mshr_miss_latency")
- .desc("average overall mshr miss latency")
- .flags(total | nozero | nonan)
- ;
+ overallAvgMshrMissLatency.flags(total | nozero | nonan);
overallAvgMshrMissLatency = overallMshrMissLatency / overallMshrMisses;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallAvgMshrMissLatency.subname(i, system->getMasterName(i));
}
- // mshrUncacheable latency formulas
- for (int access_idx = 0; access_idx < MemCmd::NUM_MEM_CMDS; ++access_idx) {
- MemCmd cmd(access_idx);
- const string &cstr = cmd.toString();
-
- avgMshrUncacheableLatency[access_idx]
- .name(name() + "." + cstr + "_avg_mshr_uncacheable_latency")
- .desc("average " + cstr + " mshr uncacheable latency")
- .flags(total | nozero | nonan)
- ;
- avgMshrUncacheableLatency[access_idx] =
- mshr_uncacheable_lat[access_idx] / mshr_uncacheable[access_idx];
-
- for (int i = 0; i < system->maxMasters(); i++) {
- avgMshrUncacheableLatency[access_idx].subname(
- i, system->getMasterName(i));
- }
- }
-
- overallAvgMshrUncacheableLatency
- .name(name() + ".overall_avg_mshr_uncacheable_latency")
- .desc("average overall mshr uncacheable latency")
- .flags(total | nozero | nonan)
- ;
+ overallAvgMshrUncacheableLatency.flags(total | nozero | nonan);
overallAvgMshrUncacheableLatency =
overallMshrUncacheableLatency / overallMshrUncacheable;
- for (int i = 0; i < system->maxMasters(); i++) {
+ for (int i = 0; i < max_masters; i++) {
overallAvgMshrUncacheableLatency.subname(i, system->getMasterName(i));
}
- replacements
- .name(name() + ".replacements")
- .desc("number of replacements")
- ;
-
- dataExpansions
- .name(name() + ".data_expansions")
- .desc("number of data expansions")
- .flags(nozero | nonan)
- ;
+ dataExpansions.flags(nozero | nonan);
}
void
projects / gem5.git / blobdiff