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align rocksdb and mace

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This commit is contained in:
abbycin
2026-03-03 13:00:01 +08:00
parent f71be68c38
commit 80b4745118
3 changed files with 74 additions and 74 deletions
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rocksdb/main.cpp
+35 -40
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@@ -135,11 +135,11 @@ int main(int argc, char *argv[]) {
cfo.min_blob_size = args.blob_size;
cfo.disable_auto_compactions = true;
cfo.max_compaction_bytes = (1ULL << 60);
cfo.level0_stop_writes_trigger = 100000;
cfo.level0_slowdown_writes_trigger = 100000;
cfo.level0_file_num_compaction_trigger = 100000;
cfo.level0_stop_writes_trigger = 1000000;
cfo.level0_slowdown_writes_trigger = 1000000;
cfo.level0_file_num_compaction_trigger = 1000000;
cfo.write_buffer_size = 64 << 20;
cfo.max_write_buffer_number = 64;
cfo.max_write_buffer_number = 128;
// use 3GB block cache
auto cache = rocksdb::NewLRUCache(3 << 30);
@@ -154,7 +154,8 @@ int main(int argc, char *argv[]) {
options.create_if_missing = true;
options.allow_concurrent_memtable_write = true;
options.enable_pipelined_write = true;
options.env->SetBackgroundThreads(4, rocksdb::Env::Priority::HIGH);
options.max_background_flushes = 8;
options.env->SetBackgroundThreads(8, rocksdb::Env::Priority::HIGH);
auto wopt = rocksdb::WriteOptions();
wopt.no_slowdown = true;
@@ -177,42 +178,36 @@ int main(int argc, char *argv[]) {
auto *handle = handles[0];
if (args.mode == "get" || args.mode == "scan") {
auto *kv = db->BeginTransaction(wopt);
std::vector<std::thread> fill_threads;
for (size_t tid = 0; tid < args.threads; ++tid) {
size_t count = args.iterations / args.threads + (tid < args.iterations % args.threads ? 1 : 0);
for (size_t i = 0; i < count; ++i) {
auto key = std::format("key_{}_{}", tid, i);
key.resize(args.key_size, 'x');
kv->Put(handle, key, val);
}
fill_threads.emplace_back([&, tid] {
bind_core(tid);
size_t count = args.iterations / args.threads + (tid < args.iterations % args.threads ? 1 : 0);
const size_t batch_size = 10000;
for (size_t i = 0; i < count; i += batch_size) {
auto *kv = db->BeginTransaction(wopt);
for (size_t j = 0; j < batch_size && (i + j) < count; ++j) {
auto key = std::format("key_{}_{}", tid, i + j);
key.resize(args.key_size, 'x');
kv->Put(handle, key, val);
}
kv->Commit();
delete kv;
}
});
}
kv->Commit();
delete kv;
for (auto &t: fill_threads)
t.join();
delete handle;
delete db;
handles.clear();
// re-open db
s = rocksdb::OptimisticTransactionDB::Open(options, args.path, cfd, &handles, &db);
assert(s.ok());
handle = handles[0];
std::uniform_int_distribution<size_t> tid_dist(0, args.threads - 1);
for (size_t i = 0; i < args.iterations; ++i) {
auto tid = tid_dist(gen);
size_t count = args.iterations / args.threads + (tid < args.iterations % args.threads ? 1 : 0);
std::uniform_int_distribution<size_t> key_dist(0, count - 1);
auto idx = key_dist(gen);
auto key = std::format("key_{}_{}", tid, idx);
key.resize(args.key_size, 'x');
auto s = db->Get(rocksdb::ReadOptions(), key, &val);
if (!s.ok()) {
std::terminate();
}
}
}
auto *snapshot = db->GetSnapshot();
auto base_seed = rd();
for (size_t tid = 0; tid < args.threads; ++tid) {
wg.emplace_back([&, tid] {
@@ -226,18 +221,22 @@ int main(int argc, char *argv[]) {
ropt.iterate_upper_bound = &upper_bound_slice;
}
ropt.prefix_same_as_start = true;
ropt.snapshot = snapshot;
size_t round = 0;
std::mt19937 mixed_gen(static_cast<uint32_t>(base_seed) ^ static_cast<uint32_t>(0x9e3779b9U * (tid + 1)));
std::mt19937 thread_gen(static_cast<uint32_t>(base_seed) ^ static_cast<uint32_t>(tid));
std::uniform_int_distribution<int> mixed_dist(0, 99);
size_t key_count = args.iterations / args.threads + (tid < args.iterations % args.threads ? 1 : 0);
std::vector<size_t> indices(key_count);
std::iota(indices.begin(), indices.end(), 0);
if (args.random) {
std::shuffle(indices.begin(), indices.end(), thread_gen);
}
ready_barrier.arrive_and_wait();
start_barrier.arrive_and_wait();
if (args.mode == "insert") {
for (size_t i = 0; i < key_count; ++i) {
for (size_t i: indices) {
auto key = std::format("key_{}_{}", tid, i);
key.resize(args.key_size, 'x');
round += 1;
@@ -246,9 +245,8 @@ int main(int argc, char *argv[]) {
kv->Commit();
delete kv;
}
} else if (args.mode == "get") {
for (size_t i = 0; i < key_count; ++i) {
for (size_t i: indices) {
auto key = std::format("key_{}_{}", tid, i);
key.resize(args.key_size, 'x');
round += 1;
@@ -258,11 +256,11 @@ int main(int argc, char *argv[]) {
delete kv;
}
} else if (args.mode == "mixed") {
for (size_t i = 0; i < key_count; ++i) {
for (size_t i: indices) {
auto key = std::format("key_{}_{}", tid, i);
key.resize(args.key_size, 'x');
round += 1;
auto is_insert = mixed_dist(mixed_gen) < static_cast<int>(args.insert_ratio);
auto is_insert = mixed_dist(thread_gen) < static_cast<int>(args.insert_ratio);
auto *kv = db->BeginTransaction(wopt);
if (is_insert) {
kv->Put(handle, key, val);
@@ -275,7 +273,6 @@ int main(int argc, char *argv[]) {
} else if (args.mode == "scan") {
auto *iter = db->NewIterator(ropt);
iter->Seek(prefix);
size_t n = 0;
while (iter->Valid()) {
round += 1;
auto k = iter->key();
@@ -283,7 +280,6 @@ int main(int argc, char *argv[]) {
black_box(k);
black_box(v);
iter->Next();
n += 1;
}
delete iter;
}
@@ -313,7 +309,6 @@ int main(int argc, char *argv[]) {
}
fmt::println("{},{},{},{},{},{},{}", args.mode, args.threads, args.key_size, args.value_size, ratio, (uint64_t) ops,
(uint64_t) b.elapse_ms());
db->ReleaseSnapshot(snapshot);
delete handle;
delete db;
std::filesystem::remove_all(args.path);