rocksdb/util/mutable_cf_options.cc

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// Copyright (c) 2014, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS
#endif
#include <inttypes.h>
#include <limits>
#include <cassert>
#include <string>
#include "port/port.h"
#include "rocksdb/env.h"
#include "rocksdb/options.h"
#include "rocksdb/immutable_options.h"
#include "util/mutable_cf_options.h"
namespace rocksdb {
// Multiple two operands. If they overflow, return op1.
uint64_t MultiplyCheckOverflow(uint64_t op1, int op2) {
if (op1 == 0) {
return 0;
}
if (op2 <= 0) {
return op1;
}
uint64_t casted_op2 = (uint64_t) op2;
if (std::numeric_limits<uint64_t>::max() / op1 < casted_op2) {
return op1;
}
return op1 * casted_op2;
}
void MutableCFOptions::RefreshDerivedOptions(
const ImmutableCFOptions& ioptions) {
max_file_size.resize(ioptions.num_levels);
for (int i = 0; i < ioptions.num_levels; ++i) {
if (i == 0 && ioptions.compaction_style == kCompactionStyleUniversal) {
max_file_size[i] = ULLONG_MAX;
} else if (i > 1) {
max_file_size[i] = MultiplyCheckOverflow(max_file_size[i - 1],
target_file_size_multiplier);
} else {
max_file_size[i] = target_file_size_base;
}
}
}
uint64_t MutableCFOptions::MaxFileSizeForLevel(int level) const {
assert(level >= 0);
assert(level < (int)max_file_size.size());
return max_file_size[level];
}
uint64_t MutableCFOptions::MaxGrandParentOverlapBytes(int level) const {
return MaxFileSizeForLevel(level) * max_grandparent_overlap_factor;
}
uint64_t MutableCFOptions::ExpandedCompactionByteSizeLimit(int level) const {
return MaxFileSizeForLevel(level) * expanded_compaction_factor;
}
void MutableCFOptions::Dump(Logger* log) const {
// Memtable related options
Log(log, " write_buffer_size: %" ROCKSDB_PRIszt,
write_buffer_size);
Log(log, " max_write_buffer_number: %d",
max_write_buffer_number);
Log(log, " arena_block_size: %" ROCKSDB_PRIszt,
arena_block_size);
Log(log, " memtable_prefix_bloom_bits: %" PRIu32,
memtable_prefix_bloom_bits);
Log(log, " memtable_prefix_bloom_probes: %" PRIu32,
memtable_prefix_bloom_probes);
Log(log, " memtable_prefix_bloom_huge_page_tlb_size: %" ROCKSDB_PRIszt,
memtable_prefix_bloom_huge_page_tlb_size);
Log(log, " max_successive_merges: %" ROCKSDB_PRIszt,
max_successive_merges);
Log(log, " filter_deletes: %d",
filter_deletes);
Log(log, " disable_auto_compactions: %d",
disable_auto_compactions);
Log(log, " soft_rate_limit: %lf",
soft_rate_limit);
Log(log, " hard_rate_limit: %lf",
hard_rate_limit);
Log(log, " level0_file_num_compaction_trigger: %d",
level0_file_num_compaction_trigger);
Log(log, " level0_slowdown_writes_trigger: %d",
level0_slowdown_writes_trigger);
Log(log, " level0_stop_writes_trigger: %d",
level0_stop_writes_trigger);
Log(log, " max_grandparent_overlap_factor: %d",
max_grandparent_overlap_factor);
Log(log, " expanded_compaction_factor: %d",
expanded_compaction_factor);
Log(log, " source_compaction_factor: %d",
source_compaction_factor);
Log(log, " target_file_size_base: %" PRIu64,
target_file_size_base);
Log(log, " target_file_size_multiplier: %d",
target_file_size_multiplier);
Log(log, " max_bytes_for_level_base: %" PRIu64,
max_bytes_for_level_base);
Log(log, " max_bytes_for_level_multiplier: %d",
max_bytes_for_level_multiplier);
std::string result;
char buf[10];
for (const auto m : max_bytes_for_level_multiplier_additional) {
snprintf(buf, sizeof(buf), "%d, ", m);
result += buf;
}
result.resize(result.size() - 2);
Log(log, "max_bytes_for_level_multiplier_additional: %s", result.c_str());
Log(log, " max_mem_compaction_level: %d",
max_mem_compaction_level);
Log(log, " verify_checksums_in_compaction: %d",
verify_checksums_in_compaction);
Log(log, " max_sequential_skip_in_iterations: %" PRIu64,
max_sequential_skip_in_iterations);
}
} // namespace rocksdb