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/*
*
* Copyright 2017, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef TEST_CPP_MICROBENCHMARKS_COUNTERS_H
#define TEST_CPP_MICROBENCHMARKS_COUNTERS_H
#include <sstream>
extern "C" {
#include <grpc/support/port_platform.h>
#include "test/core/util/memory_counters.h"
}
#include <grpc++/impl/grpc_library.h>
#include "third_party/benchmark/include/benchmark/benchmark.h"
class Library {
public:
static Library& get() {
static Library lib;
return lib;
}
grpc_resource_quota* rq() { return rq_; }
private:
Library() {
grpc_memory_counters_init();
init_lib_.init();
rq_ = grpc_resource_quota_create("bm");
}
~Library() { init_lib_.shutdown(); }
grpc::internal::GrpcLibrary init_lib_;
grpc_resource_quota* rq_;
};
#ifdef GPR_LOW_LEVEL_COUNTERS
extern "C" gpr_atm gpr_mu_locks;
extern "C" gpr_atm gpr_counter_atm_cas;
extern "C" gpr_atm gpr_counter_atm_add;
#endif
class TrackCounters {
public:
virtual void Finish(benchmark::State& state) {
std::ostringstream out;
AddToLabel(out, state);
auto label = out.str();
if (label.length() && label[0] == ' ') {
label = label.substr(1);
}
state.SetLabel(label);
}
virtual void AddToLabel(std::ostream& out, benchmark::State& state) {
#ifdef GPR_LOW_LEVEL_COUNTERS
out << " locks/iter:" << ((double)(gpr_atm_no_barrier_load(&gpr_mu_locks) -
mu_locks_at_start_) /
(double)state.iterations())
<< " atm_cas/iter:"
<< ((double)(gpr_atm_no_barrier_load(&gpr_counter_atm_cas) -
atm_cas_at_start_) /
(double)state.iterations())
<< " atm_add/iter:"
<< ((double)(gpr_atm_no_barrier_load(&gpr_counter_atm_add) -
atm_add_at_start_) /
(double)state.iterations());
#endif
grpc_memory_counters counters_at_end = grpc_memory_counters_snapshot();
out << " allocs/iter:"
<< ((double)(counters_at_end.total_allocs_absolute -
counters_at_start_.total_allocs_absolute) /
(double)state.iterations());
}
private:
#ifdef GPR_LOW_LEVEL_COUNTERS
const size_t mu_locks_at_start_ = gpr_atm_no_barrier_load(&gpr_mu_locks);
const size_t atm_cas_at_start_ =
gpr_atm_no_barrier_load(&gpr_counter_atm_cas);
const size_t atm_add_at_start_ =
gpr_atm_no_barrier_load(&gpr_counter_atm_add);
#endif
grpc_memory_counters counters_at_start_ = grpc_memory_counters_snapshot();
};
#endif
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