135 lines
4.4 KiB
C++
135 lines
4.4 KiB
C++
/*
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* WatchAndWait.actor.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 2013-2018 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 "flow/actorcompiler.h"
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#include "fdbrpc/ContinuousSample.h"
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#include "fdbclient/NativeAPI.h"
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#include "fdbserver/TesterInterface.h"
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#include "BulkSetup.actor.h"
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#include "fdbclient/ReadYourWrites.h"
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#include "workloads.h"
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struct WatchAndWaitWorkload : TestWorkload {
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uint64_t nodeCount, watchCount;
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int64_t nodePrefix;
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int keyBytes;
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double testDuration;
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bool triggerWatches;
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vector<Future<Void>> clients;
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PerfIntCounter triggers, retries;
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WatchAndWaitWorkload(WorkloadContext const& wcx)
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: TestWorkload(wcx), triggers("Triggers"), retries("Retries")
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{
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testDuration = getOption( options, LiteralStringRef("testDuration"), 600.0 );
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watchCount = getOption( options, LiteralStringRef("watchCount"), (uint64_t)10000 );
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nodeCount = getOption( options, LiteralStringRef("nodeCount"), (uint64_t)100000 );
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nodePrefix = getOption( options, LiteralStringRef("nodePrefix"), (int64_t)-1 );
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keyBytes = std::max( getOption( options, LiteralStringRef("keyBytes"), 16 ), 4 );
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triggerWatches = getOption( options, LiteralStringRef("triggerWatches"), false );
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if( watchCount > nodeCount ) {
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watchCount = nodeCount;
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}
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if( nodePrefix > 0 ) {
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keyBytes += 16;
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}
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if( !triggerWatches ) {
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keyBytes++; //watches are on different keys than the ones being modified by the workload
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}
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}
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virtual std::string description() { return "WatchAndWait"; }
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virtual Future<Void> setup( Database const& cx ) { return Void(); }
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virtual Future<Void> start( Database const& cx ) {
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return _start( cx, this );
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}
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Key keyForIndex( uint64_t index ) {
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Key result = makeString( keyBytes );
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uint8_t* data = mutateString( result );
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memset(data, '.', keyBytes);
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int idx = 0;
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if( nodePrefix > 0 ) {
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emplaceIndex( data, 0, nodePrefix );
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idx += 16;
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}
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double d = double(index) / nodeCount;
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emplaceIndex( data, idx, *(int64_t*)&d );
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return result;
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}
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virtual Future<bool> check( Database const& cx ) {
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return true;
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}
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virtual void getMetrics( vector<PerfMetric>& m ) {
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double duration = testDuration;
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m.push_back( PerfMetric( "Triggers/sec", triggers.getValue() / duration, false ) );
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m.push_back( triggers.getMetric() );
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m.push_back( retries.getMetric() );
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}
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ACTOR Future<Void> _start( Database cx, WatchAndWaitWorkload* self ) {
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state std::vector<Future<Void>> watches;
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int watchCounter = 0;
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uint64_t endNode = (self->nodeCount * (self->clientId+1)) / self->clientCount;
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uint64_t startNode = (self->nodeCount * self->clientId) / self->clientCount;
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uint64_t NodesPerWatch = self->nodeCount / self->watchCount;
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TraceEvent("WatchAndWaitExpect").detail("Duration", self->testDuration).detail("ExpectedCount", (endNode - startNode) / NodesPerWatch).detail("End", endNode).detail("Start", startNode).detail("Npw", NodesPerWatch);
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for( uint64_t i = startNode; i < endNode; i += NodesPerWatch ) {
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watches.push_back( self->watchAndWait( cx, self, i ) );
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watchCounter++;
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}
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Void _ = wait( delay( self->testDuration )); // || waitForAll( watches )
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TraceEvent("WatchAndWaitEnd").detail("Duration", self->testDuration);
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return Void();
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}
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ACTOR Future<Void> watchAndWait( Database cx, WatchAndWaitWorkload* self, int index ) {
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try {
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state ReadYourWritesTransaction tr(cx);
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loop {
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cx->maxOutstandingWatches = 1e6;
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try {
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state Future<Void> watch = tr.watch( self->keyForIndex( index ) );
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Void _ = wait( tr.commit() );
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Void _ = wait( watch );
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++self->triggers;
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} catch( Error &e ) {
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++self->retries;
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Void _ = wait( tr.onError(e) );
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}
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}
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} catch( Error &e ) {
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TraceEvent(SevError, "WatchAndWaitError").error(e);
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throw e;
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}
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}
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};
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WorkloadFactory<WatchAndWaitWorkload> WatchAndWaitWorkloadFactory("WatchAndWait");
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