weaselab/conflict-set
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Group write metric accumulators into a struct

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This commit is contained in:
Andrew Noyes
2024-07-31 21:45:20 -07:00
parent 2b11650589
commit f21dde06d3
1 changed files with 35 additions and 30 deletions
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65
ConflictSet.cpp
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@@ -718,15 +718,20 @@ struct ReadContext {
// A type that's plumbed along the non-const call tree. Same lifetime as
// ConflictSet::Impl
struct WriteContext {
int64_t entries_erased_accum = 0;
int64_t insert_iterations_accum = 0;
int64_t entries_inserted_accum = 0;
int64_t nodes_allocated_accum = 0;
int64_t nodes_released_accum = 0;
int64_t point_writes_accum = 0;
int64_t range_writes_accum = 0;
struct Accum {
int64_t entries_erased = 0;
int64_t insert_iterations = 0;
int64_t entries_inserted = 0;
int64_t nodes_allocated = 0;
int64_t nodes_released = 0;
int64_t point_writes = 0;
int64_t range_writes = 0;
int64_t write_bytes = 0;
} accum;
template <class T> T *allocate(int c) {
++nodes_allocated_accum;
++accum.nodes_allocated;
if constexpr (std::is_same_v<T, Node0>) {
return node0.allocate(c);
} else if constexpr (std::is_same_v<T, Node3>) {
@@ -741,7 +746,7 @@ struct WriteContext {
}
template <class T> void release(T *c) {
static_assert(!std::is_same_v<T, Node>);
++nodes_released_accum;
++accum.nodes_released;
if constexpr (std::is_same_v<T, Node0>) {
return node0.release(c);
} else if constexpr (std::is_same_v<T, Node3>) {
@@ -1454,7 +1459,7 @@ void maybeDownsize(Node *self, WriteContext *tls, ConflictSet::Impl *impl,
// will update it to its new pointee as well. Precondition: `self->entryPresent`
Node *erase(Node *self, WriteContext *tls, ConflictSet::Impl *impl,
bool logical, Node *&dontInvalidate) {
++tls->entries_erased_accum;
++tls->accum.entries_erased;
assert(self->parent != nullptr);
#if DEBUG_VERBOSE && !defined(NDEBUG)
@@ -2834,7 +2839,7 @@ template <bool kBegin>
InternalVersionT writeVersion, WriteContext *tls,
ConflictSet::Impl *impl) {
for (;; ++tls->insert_iterations_accum) {
for (;; ++tls->accum.insert_iterations) {
if ((*self)->partialKeyLen > 0) {
// Handle an existing partial key
@@ -2945,10 +2950,10 @@ void destroyTree(Node *root) {
void addPointWrite(Node *&root, std::span<const uint8_t> key,
InternalVersionT writeVersion, WriteContext *tls,
ConflictSet::Impl *impl) {
++tls->point_writes_accum;
++tls->accum.point_writes;
auto *n = insert<true>(&root, key, writeVersion, tls, impl);
if (!n->entryPresent) {
++tls->entries_inserted_accum;
++tls->accum.entries_inserted;
auto *p = nextLogical(n);
addKey(n);
@@ -2975,7 +2980,7 @@ void addWriteRange(Node *&root, std::span<const uint8_t> begin,
end.back() == 0) {
return addPointWrite(root, begin, writeVersion, tls, impl);
}
++tls->range_writes_accum;
++tls->accum.range_writes;
const bool beginIsPrefix = lcp == int(begin.size());
auto remaining = begin.subspan(0, lcp);
@@ -3019,7 +3024,7 @@ void addWriteRange(Node *&root, std::span<const uint8_t> begin,
beginNode->entryPresent = true;
if (insertedBegin) {
++tls->entries_inserted_accum;
++tls->accum.entries_inserted;
auto *p = nextLogical(beginNode);
beginNode->entry.rangeVersion =
p == nullptr ? InternalVersionT::zero
@@ -3040,7 +3045,7 @@ void addWriteRange(Node *&root, std::span<const uint8_t> begin,
endNode->entryPresent = true;
if (insertedEnd) {
++tls->entries_inserted_accum;
++tls->accum.entries_inserted;
auto *p = nextLogical(endNode);
endNode->entry.pointVersion =
p == nullptr ? InternalVersionT::zero
@@ -3184,10 +3189,9 @@ struct __attribute__((visibility("hidden"))) ConflictSet::Impl {
gcScanStep(1000);
}
int64_t write_byte_accum = 0;
for (int i = 0; i < count; ++i) {
const auto &w = writes[i];
write_byte_accum += w.begin.len + w.end.len;
tls.accum.write_bytes += w.begin.len + w.end.len;
auto begin = std::span<const uint8_t>(w.begin.p, w.begin.len);
auto end = std::span<const uint8_t>(w.end.p, w.end.len);
if (w.end.len > 0) {
@@ -3201,14 +3205,15 @@ struct __attribute__((visibility("hidden"))) ConflictSet::Impl {
}
memory_bytes.set(totalBytes);
point_writes_total.add(std::exchange(tls.point_writes_accum, 0));
range_writes_total.add(std::exchange(tls.range_writes_accum, 0));
nodes_allocated_total.add(std::exchange(tls.nodes_allocated_accum, 0));
nodes_released_total.add(std::exchange(tls.nodes_released_accum, 0));
entries_inserted_total.add(std::exchange(tls.entries_inserted_accum, 0));
entries_erased_total.add(std::exchange(tls.entries_erased_accum, 0));
insert_iterations_total.add(std::exchange(tls.insert_iterations_accum, 0));
write_bytes_total.add(write_byte_accum);
point_writes_total.add(tls.accum.point_writes);
range_writes_total.add(tls.accum.range_writes);
nodes_allocated_total.add(tls.accum.nodes_allocated);
nodes_released_total.add(tls.accum.nodes_released);
entries_inserted_total.add(tls.accum.entries_inserted);
entries_erased_total.add(tls.accum.entries_erased);
insert_iterations_total.add(tls.accum.insert_iterations);
write_bytes_total.add(tls.accum.write_bytes);
memset(&tls.accum, 0, sizeof(tls.accum));
}
// Spends up to `fuel` gc'ing, and returns its unused fuel. Reclaims memory
@@ -3283,10 +3288,10 @@ struct __attribute__((visibility("hidden"))) ConflictSet::Impl {
keyUpdates = gcScanStep(keyUpdates);
memory_bytes.set(totalBytes);
nodes_allocated_total.add(std::exchange(tls.nodes_allocated_accum, 0));
nodes_released_total.add(std::exchange(tls.nodes_released_accum, 0));
entries_inserted_total.add(std::exchange(tls.entries_inserted_accum, 0));
entries_erased_total.add(std::exchange(tls.entries_erased_accum, 0));
nodes_allocated_total.add(std::exchange(tls.accum.nodes_allocated, 0));
nodes_released_total.add(std::exchange(tls.accum.nodes_released, 0));
entries_inserted_total.add(std::exchange(tls.accum.entries_inserted, 0));
entries_erased_total.add(std::exchange(tls.accum.entries_erased, 0));
oldest_version.set(oldestVersionFullPrecision);
}