Export of internal Abseil changes.
-- 7a6ff16a85beb730c172d5d25cf1b5e1be885c56 by Laramie Leavitt <lar@google.com>: Internal change. PiperOrigin-RevId: 254454546 -- ff8f9bafaefc26d451f576ea4a06d150aed63f6f by Andy Soffer <asoffer@google.com>: Internal changes PiperOrigin-RevId: 254451562 -- deefc5b651b479ce36f0b4ef203e119c0c8936f2 by CJ Johnson <johnsoncj@google.com>: Account for subtracting unsigned values from the size of InlinedVector PiperOrigin-RevId: 254450625 -- 3c677316a27bcadc17e41957c809ca472d5fef14 by Andy Soffer <asoffer@google.com>: Add C++17's std::make_from_tuple to absl/utility/utility.h PiperOrigin-RevId: 254411573 -- 4ee3536a918830eeec402a28fc31a62c7c90b940 by CJ Johnson <johnsoncj@google.com>: Adds benchmark for the rest of the InlinedVector public API PiperOrigin-RevId: 254408378 -- e5a21a00700ee83498ff1efbf649169756463ee4 by CJ Johnson <johnsoncj@google.com>: Updates the definition of InlinedVector::shrink_to_fit() to be exception safe and adds exception safety tests for it. PiperOrigin-RevId: 254401387 -- 2ea82e72b86d82d78b4e4712a63a55981b53c64b by Laramie Leavitt <lar@google.com>: Use absl::InsecureBitGen in place of std::mt19937 in tests absl/random/...distribution_test.cc PiperOrigin-RevId: 254289444 -- fa099e02c413a7ffda732415e8105cad26a90337 by Andy Soffer <asoffer@google.com>: Internal changes PiperOrigin-RevId: 254286334 -- ce34b7f36933b30cfa35b9c9a5697a792b5666e4 by Andy Soffer <asoffer@google.com>: Internal changes PiperOrigin-RevId: 254273059 -- 6f9c473da7c2090c2e85a37c5f00622e8a912a89 by Jorg Brown <jorg@google.com>: Change absl::container_internal::CompressedTuple to instantiate its internal Storage class with the name of the type it's holding, rather than the name of the Tuple. This is not an externally-visible change, other than less compiler memory is used and less debug information is generated. PiperOrigin-RevId: 254269285 -- 8bd3c186bf2fc0c55d8a2dd6f28a5327502c9fba by Andy Soffer <asoffer@google.com>: Adding short-hand IntervalClosed for IntervalClosedClosed and IntervalOpen for IntervalOpenOpen. PiperOrigin-RevId: 254252419 -- ea957f99b6a04fccd42aa05605605f3b44b1ecfd by Abseil Team <absl-team@google.com>: Do not directly use __SIZEOF_INT128__. In order to avoid linker errors when building with clang-cl (__fixunsdfti, __udivti3 and __fixunssfti are undefined), this CL uses ABSL_HAVE_INTRINSIC_INT128 which is not defined for clang-cl. PiperOrigin-RevId: 254250739 -- 89ab385cd26b34d64130bce856253aaba96d2345 by Andy Soffer <asoffer@google.com>: Internal changes PiperOrigin-RevId: 254242321 -- cffc793d93eca6d6bdf7de733847b6ab4a255ae9 by CJ Johnson <johnsoncj@google.com>: Adds benchmark for InlinedVector::reserve(size_type) PiperOrigin-RevId: 254199226 -- c90c7a9fa3c8f0c9d5114036979548b055ea2f2a by Gennadiy Rozental <rogeeff@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 254072387 -- c4c388beae016c9570ab54ffa1d52660e4a85b7b by Laramie Leavitt <lar@google.com>: Internal cleanup. PiperOrigin-RevId: 254062381 -- d3c992e221cc74e5372d0c8fa410170b6a43c062 by Tom Manshreck <shreck@google.com>: Update distributions.h to Abseil standards PiperOrigin-RevId: 254054946 -- d15ad0035c34ef11b14fadc5a4a2d3ec415f5518 by CJ Johnson <johnsoncj@google.com>: Removes functions with only one caller from the implementation details of InlinedVector by manually inlining the definitions PiperOrigin-RevId: 254005427 -- 2f37e807efc3a8ef1f4b539bdd379917d4151520 by Andy Soffer <asoffer@google.com>: Initial release of Abseil Random PiperOrigin-RevId: 253999861 -- 24ed1694b6430791d781ed533a8f8ccf6cac5856 by CJ Johnson <johnsoncj@google.com>: Updates the definition of InlinedVector::assign(...)/InlinedVector::operator=(...) to new, exception-safe implementations with exception safety tests to boot PiperOrigin-RevId: 253993691 -- 5613d95f5a7e34a535cfaeadce801441e990843e by CJ Johnson <johnsoncj@google.com>: Adds benchmarks for InlinedVector::shrink_to_fit() PiperOrigin-RevId: 253989647 -- 2a96ddfdac40bbb8cb6a7f1aeab90917067c6e63 by Abseil Team <absl-team@google.com>: Initial release of Abseil Random PiperOrigin-RevId: 253927497 -- bf1aff8fc9ffa921ad74643e9525ecf25b0d8dc1 by Andy Soffer <asoffer@google.com>: Initial release of Abseil Random PiperOrigin-RevId: 253920512 -- bfc03f4a3dcda3cf3a4b84bdb84cda24e3394f41 by Laramie Leavitt <lar@google.com>: Internal change. PiperOrigin-RevId: 253886486 -- 05036cfcc078ca7c5f581a00dfb0daed568cbb69 by Eric Fiselier <ericwf@google.com>: Don't include `winsock2.h` because it drags in `windows.h` and friends, and they define awful macros like OPAQUE, ERROR, and more. This has the potential to break abseil users. Instead we only forward declare `timeval` and require Windows users include `winsock2.h` themselves. This is both inconsistent and poor QoI, but so including 'windows.h' is bad too. PiperOrigin-RevId: 253852615 GitOrigin-RevId: 7a6ff16a85beb730c172d5d25cf1b5e1be885c56 Change-Id: Icd6aff87da26f29ec8915da856f051129987cef6
This commit is contained in:
Abseil Team
Gennadiy Rozental
parent
43ef2148c0
commit
e9324d926a
120 changed files with 22842 additions and 340 deletions
174
absl/random/internal/randen_benchmarks.cc
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174
absl/random/internal/randen_benchmarks.cc
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// Copyright 2017 The Abseil 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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// https://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 "absl/random/internal/randen.h"
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#include <cstdint>
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#include <cstdio>
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#include <cstring>
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#include "absl/base/internal/raw_logging.h"
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#include "absl/random/internal/nanobenchmark.h"
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#include "absl/random/internal/platform.h"
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#include "absl/random/internal/randen_engine.h"
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#include "absl/random/internal/randen_hwaes.h"
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#include "absl/random/internal/randen_slow.h"
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#include "absl/strings/numbers.h"
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namespace {
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using absl::random_internal::Randen;
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using absl::random_internal::RandenHwAes;
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using absl::random_internal::RandenSlow;
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using absl::random_internal_nanobenchmark::FuncInput;
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using absl::random_internal_nanobenchmark::FuncOutput;
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using absl::random_internal_nanobenchmark::InvariantTicksPerSecond;
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using absl::random_internal_nanobenchmark::MeasureClosure;
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using absl::random_internal_nanobenchmark::Params;
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using absl::random_internal_nanobenchmark::PinThreadToCPU;
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using absl::random_internal_nanobenchmark::Result;
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// Local state parameters.
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static constexpr size_t kStateSizeT = Randen::kStateBytes / sizeof(uint64_t);
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static constexpr size_t kSeedSizeT = Randen::kSeedBytes / sizeof(uint32_t);
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// Randen implementation benchmarks.
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template <typename T>
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struct AbsorbFn : public T {
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mutable uint64_t state[kStateSizeT] = {};
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mutable uint32_t seed[kSeedSizeT] = {};
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static constexpr size_t bytes() { return sizeof(seed); }
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FuncOutput operator()(const FuncInput num_iters) const {
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for (size_t i = 0; i < num_iters; ++i) {
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this->Absorb(seed, state);
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}
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return state[0];
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}
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};
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template <typename T>
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struct GenerateFn : public T {
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mutable uint64_t state[kStateSizeT];
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GenerateFn() { std::memset(state, 0, sizeof(state)); }
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static constexpr size_t bytes() { return sizeof(state); }
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FuncOutput operator()(const FuncInput num_iters) const {
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const auto* keys = this->GetKeys();
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for (size_t i = 0; i < num_iters; ++i) {
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this->Generate(keys, state);
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}
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return state[0];
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}
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};
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template <typename UInt>
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struct Engine {
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mutable absl::random_internal::randen_engine<UInt> rng;
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static constexpr size_t bytes() { return sizeof(UInt); }
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FuncOutput operator()(const FuncInput num_iters) const {
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for (size_t i = 0; i < num_iters - 1; ++i) {
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rng();
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}
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return rng();
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}
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};
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template <size_t N>
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void Print(const char* name, const size_t n, const Result (&results)[N],
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const size_t bytes) {
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if (n == 0) {
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ABSL_RAW_LOG(
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WARNING,
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"WARNING: Measurement failed, should not happen when using "
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"PinThreadToCPU unless the region to measure takes > 1 second.\n");
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return;
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}
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static const double ns_per_tick = 1e9 / InvariantTicksPerSecond();
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static constexpr const double kNsPerS = 1e9; // ns/s
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static constexpr const double kMBPerByte = 1.0 / 1048576.0; // Mb / b
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static auto header = [] {
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return printf("%20s %8s: %12s ticks; %9s (%9s) %8s\n", "Name", "Count",
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"Total", "Variance", "Time", "bytes/s");
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}();
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(void)header;
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for (size_t i = 0; i < n; ++i) {
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const double ticks_per_call = results[i].ticks / results[i].input;
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const double ns_per_call = ns_per_tick * ticks_per_call;
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const double bytes_per_ns = bytes / ns_per_call;
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const double mb_per_s = bytes_per_ns * kNsPerS * kMBPerByte;
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// Output
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printf("%20s %8zu: %12.2f ticks; MAD=%4.2f%% (%6.1f ns) %8.1f Mb/s\n",
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name, results[i].input, results[i].ticks,
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results[i].variability * 100.0, ns_per_call, mb_per_s);
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}
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}
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// Fails here
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template <typename Op, size_t N>
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void Measure(const char* name, const FuncInput (&inputs)[N]) {
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Op op;
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Result results[N];
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Params params;
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params.verbose = false;
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params.max_evals = 6; // avoid test timeout
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const size_t num_results = MeasureClosure(op, inputs, N, results, params);
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Print(name, num_results, results, op.bytes());
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}
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// unpredictable == 1 but the compiler does not know that.
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void RunAll(const int argc, char* argv[]) {
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if (argc == 2) {
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int cpu = -1;
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if (!absl::SimpleAtoi(argv[1], &cpu)) {
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ABSL_RAW_LOG(FATAL, "The optional argument must be a CPU number >= 0.\n");
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}
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PinThreadToCPU(cpu);
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}
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// The compiler cannot reduce this to a constant.
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const FuncInput unpredictable = (argc != 999);
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static const FuncInput inputs[] = {unpredictable * 100, unpredictable * 1000};
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#if !defined(ABSL_INTERNAL_DISABLE_AES) && ABSL_HAVE_ACCELERATED_AES
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Measure<AbsorbFn<RandenHwAes>>("Absorb (HwAes)", inputs);
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#endif
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Measure<AbsorbFn<RandenSlow>>("Absorb (Slow)", inputs);
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#if !defined(ABSL_INTERNAL_DISABLE_AES) && ABSL_HAVE_ACCELERATED_AES
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Measure<GenerateFn<RandenHwAes>>("Generate (HwAes)", inputs);
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#endif
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Measure<GenerateFn<RandenSlow>>("Generate (Slow)", inputs);
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// Measure the production engine.
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static const FuncInput inputs1[] = {unpredictable * 1000,
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unpredictable * 10000};
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Measure<Engine<uint64_t>>("randen_engine<uint64_t>", inputs1);
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Measure<Engine<uint32_t>>("randen_engine<uint32_t>", inputs1);
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}
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} // namespace
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int main(int argc, char* argv[]) {
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RunAll(argc, argv);
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return 0;
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}
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