86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
/*
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* SlowTaskWorkload.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 <cinttypes>
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#include "fdbserver/workloads/workloads.actor.h"
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#include "flow/SignalSafeUnwind.h"
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#include "flow/actorcompiler.h" // This must be the last #include.
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// Stress test the slow task profiler or flow profiler
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struct SlowTaskWorkload : TestWorkload {
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SlowTaskWorkload(WorkloadContext const& wcx)
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: TestWorkload(wcx) {
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}
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virtual std::string description() {
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return "SlowTaskWorkload";
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}
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virtual Future<Void> start(Database const& cx) {
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setupRunLoopProfiler();
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return go();
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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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}
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ACTOR static Future<Void> go() {
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wait( delay(1) );
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int64_t phc = dl_iterate_phdr_calls;
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int64_t startProfilesDeferred = getNumProfilesDeferred();
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int64_t startProfilesOverflowed = getNumProfilesOverflowed();
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int64_t startProfilesCaptured = getNumProfilesCaptured();
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int64_t exc = 0;
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fprintf(stderr, "Slow task starting\n");
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for(int i=0; i<10; i++) {
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fprintf(stderr, " %d\n", i);
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double end = timer() + 1;
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while( timer() < end ) {
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do_slow_exception_thing(&exc);
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}
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}
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fprintf(stderr, "Slow task complete: %" PRId64 " exceptions; %" PRId64 " calls to dl_iterate_phdr, %" PRId64 " profiles deferred, %" PRId64 " profiles overflowed, %" PRId64 " profiles captured\n",
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exc, dl_iterate_phdr_calls - phc,
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getNumProfilesDeferred() - startProfilesDeferred,
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getNumProfilesOverflowed() - startProfilesOverflowed,
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getNumProfilesCaptured() - startProfilesCaptured);
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return Void();
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}
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static void do_slow_exception_thing(int64_t* exc_count) {
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// Has to be a non-actor function so that actual exception unwinding occurs
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for(int j=0; j<1000; j++)
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try {
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throw success();
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} catch (Error& ) {
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++*exc_count;
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}
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}
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};
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WorkloadFactory<SlowTaskWorkload> SlowTaskWorkloadFactory("SlowTaskWorkload");
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