diff options
| author | Lucas de Castro Borges <lucas@gnuabordo.com.br> | 2025-02-11 15:07:35 -0300 |
|---|---|---|
| committer | Lucas de Castro Borges <lucas@gnuabordo.com.br> | 2025-02-11 15:07:35 -0300 |
| commit | 4cb8841196d0625dfa3825aa326f071cd27c7b8b (patch) | |
| tree | 1682a647d4463397c119183369ae6f750d5fdcff /src/mongo/db/query/util/memory_util.cpp | |
| parent | aa03c6362cbaa767638e6eed9b031d86dd2643d1 (diff) | |
| parent | 8f0827553e09872941945a093b647a4211a9db7f (diff) | |
Update upstream source from tag 'upstream/6.0.0'master
Update to upstream version '6.0.0'
with Debian dir 5604a80ec1c96ca76f25f40d78e6ef855abec322
Diffstat (limited to 'src/mongo/db/query/util/memory_util.cpp')
| -rw-r--r-- | src/mongo/db/query/util/memory_util.cpp | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/src/mongo/db/query/util/memory_util.cpp b/src/mongo/db/query/util/memory_util.cpp deleted file mode 100644 index 8a206deb2b7..00000000000 --- a/src/mongo/db/query/util/memory_util.cpp +++ /dev/null @@ -1,128 +0,0 @@ -/** - * Copyright (C) 2021-present MongoDB, Inc. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the Server Side Public License, version 1, - * as published by MongoDB, Inc. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * Server Side Public License for more details. - * - * You should have received a copy of the Server Side Public License - * along with this program. If not, see - * <http://www.mongodb.com/licensing/server-side-public-license>. - * - * As a special exception, the copyright holders give permission to link the - * code of portions of this program with the OpenSSL library under certain - * conditions as described in each individual source file and distribute - * linked combinations including the program with the OpenSSL library. You - * must comply with the Server Side Public License in all respects for - * all of the code used other than as permitted herein. If you modify file(s) - * with this exception, you may extend this exception to your version of the - * file(s), but you are not obligated to do so. If you do not wish to do so, - * delete this exception statement from your version. If you delete this - * exception statement from all source files in the program, then also delete - * it in the license file. - */ - -#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kQuery - -#include "mongo/db/query/util/memory_util.h" - -#include <cstddef> -#include <pcrecpp.h> - -#include "mongo/logv2/log.h" -#include "mongo/util/processinfo.h" - - -namespace mongo::memory_util { - -StatusWith<MemoryUnits> parseUnitString(const std::string& strUnit) { - if (strUnit.empty()) { - return Status(ErrorCodes::Error{6007010}, "Unit value cannot be empty"); - } - - if (strUnit[0] == '%') { - return MemoryUnits::kPercent; - } else if (strUnit[0] == 'M' || strUnit[0] == 'm') { - return MemoryUnits::kMB; - } else if (strUnit[0] == 'G' || strUnit[0] == 'g') { - return MemoryUnits::kGB; - } - - return Status(ErrorCodes::Error{6007011}, "Incorrect unit value"); -} - -StatusWith<MemorySize> MemorySize::parse(const std::string& str) { - pcrecpp::RE_Options opt; - opt.set_caseless(true); - // Looks for a floating point number with followed by a unit suffix (MB, GB, %). - pcrecpp::RE re("\\s*(\\d+\\.?\\d*)\\s*(MB|GB|%)\\s*", opt); - - double size{}; - std::string strUnit{}; - if (!re.FullMatch(str, &size, &strUnit)) { - return {ErrorCodes::Error{6007012}, "Unable to parse memory size string"}; - } - - auto statusWithUnit = parseUnitString(strUnit); - if (!statusWithUnit.isOK()) { - return statusWithUnit.getStatus(); - } - return MemorySize{size, statusWithUnit.getValue()}; -} - -size_t convertToSizeInBytes(const MemorySize& memSize) { - constexpr size_t kBytesInMB = 1024 * 1024; - constexpr size_t kMBytesInGB = 1024; - - double sizeInMB = memSize.size; - - switch (memSize.units) { - case MemoryUnits::kPercent: - sizeInMB *= ProcessInfo::getMemSizeMB() / 100.0; - break; - case MemoryUnits::kMB: - break; - case MemoryUnits::kGB: - sizeInMB *= kMBytesInGB; - break; - } - - return static_cast<size_t>(sizeInMB * kBytesInMB); -} - -size_t getRequestedMemSizeInBytes(const MemorySize& memSize) { - size_t planCacheSize = convertToSizeInBytes(memSize); - uassert(5968001, - "Cache size must be at least 1KB * number of cores", - planCacheSize >= 1024 * ProcessInfo::getNumCores()); - return planCacheSize; -} - -/** - * Sets upper limit on a storage structure's size. Either that structure's maximumSize or to - * percentage of the total system's memory (both known at call site), whichever is smaller. - */ -size_t capMemorySize(size_t requestedSizeBytes, - size_t maximumSizeGB, - double percentTotalSystemMemory) { - constexpr size_t kBytesInGB = 1024 * 1024 * 1024; - // Express maximum size in bytes. - const size_t maximumSizeBytes = maximumSizeGB * kBytesInGB; - const memory_util::MemorySize limitToProcessSize{percentTotalSystemMemory, - memory_util::MemoryUnits::kPercent}; - const size_t limitToProcessSizeInBytes = convertToSizeInBytes(limitToProcessSize); - - // The size will be capped by the minimum of the two values defined above. - const size_t upperLimit = std::min(maximumSizeBytes, limitToProcessSizeInBytes); - - if (requestedSizeBytes > upperLimit) { - requestedSizeBytes = upperLimit; - } - return requestedSizeBytes; -} -} // namespace mongo::memory_util |
