132 lines
4.0 KiB
C++
132 lines
4.0 KiB
C++
/*
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* GetRangeStream.cpp
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2026 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "fdbclient/NativeAPI.actor.h"
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#include "fdbserver/core/TesterInterface.h"
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#include "fdbserver/tester/workloads.h"
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#include "BulkSetup.h"
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struct GetRangeStream : TestWorkload {
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static constexpr auto NAME = "GetRangeStream";
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PerfIntCounter bytesRead;
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bool useGetRange;
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Key begin;
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Key end;
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bool printKVPairs;
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explicit GetRangeStream(WorkloadContext const& wcx) : TestWorkload(wcx), bytesRead("BytesRead") {
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useGetRange = getOption(options, "useGetRange"_sr, false);
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begin = getOption(options, "begin"_sr, normalKeys.begin);
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end = getOption(options, "end"_sr, normalKeys.end);
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printKVPairs = getOption(options, "printKVPairs"_sr, false);
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}
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Future<Void> setup(Database const& cx) override { return Void(); }
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Future<Void> start(Database const& cx) override {
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return clientId != 0 ? Void() : useGetRange ? fdbClientGetRange(cx) : fdbClientStream(cx);
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}
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Future<bool> check(Database const& cx) override { return true; }
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void getMetrics(std::vector<PerfMetric>& m) override { m.push_back(bytesRead.getMetric()); }
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Future<Void> logThroughput(Key* next) {
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while (true) {
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int64_t last = bytesRead.getValue();
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double before = g_network->now();
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co_await delay(1);
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double after = g_network->now();
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if (after > before) {
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printf("throughput: %g bytes/s, next: %s\n",
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(bytesRead.getValue() - last) / (after - before),
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printable(*next).c_str());
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}
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}
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}
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Future<Void> fdbClientGetRange(Database db) {
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Transaction tx(db);
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Key next = begin;
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Future<Void> logFuture = logThroughput(&next);
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while (true) {
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Error err;
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try {
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Standalone<RangeResultRef> range = co_await tx.getRange(
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KeySelector(firstGreaterOrEqual(next), next.arena()),
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KeySelector(firstGreaterOrEqual(end)),
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GetRangeLimits(GetRangeLimits::ROW_LIMIT_UNLIMITED, CLIENT_KNOBS->REPLY_BYTE_LIMIT));
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for (const auto& [k, v] : range) {
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if (printKVPairs) {
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printf("%s -> %s\n", printable(k).c_str(), printable(v).c_str());
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}
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bytesRead += k.size() + v.size();
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}
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if (!range.more) {
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break;
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}
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next = keyAfter(range.back().key);
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} catch (Error& e) {
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err = e;
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}
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co_await tx.onError(err);
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}
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}
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Future<Void> fdbClientStream(Database db) {
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Transaction tx(db);
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Key next = begin;
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Future<Void> logFuture = logThroughput(&next);
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while (true) {
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PromiseStream<Standalone<RangeResultRef>> results;
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Error err;
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try {
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Future<Void> stream = tx.getRangeStream(results,
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KeySelector(firstGreaterOrEqual(next), next.arena()),
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KeySelector(firstGreaterOrEqual(end)),
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GetRangeLimits());
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while (true) {
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Standalone<RangeResultRef> range = co_await results.getFuture();
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for (const auto& [k, v] : range) {
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if (printKVPairs) {
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printf("%s -> %s\n", printable(k).c_str(), printable(v).c_str());
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}
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bytesRead += k.size() + v.size();
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}
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if (!range.empty()) {
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next = keyAfter(range.back().key);
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}
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}
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} catch (Error& e) {
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err = e;
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}
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if (!err.isValid()) {
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continue;
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}
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if (err.code() == error_code_end_of_stream) {
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break;
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}
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co_await tx.onError(err);
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}
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}
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};
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WorkloadFactory<GetRangeStream> GetRangeStreamWorkloadFactory;
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