4de9594f6f
This will result in smaller code generation when Status instances are passed around. Benchmarks don't indicate a significant change either way. CPU: 48 * Intel(R) Xeon(R) CPU E5-2690 v3 @ 2.60GHz CPUCache: 30720 KB Keys: 16 bytes each Values: 100 bytes each (50 bytes after compression) Entries: 1000000 RawSize: 110.6 MB (estimated) FileSize: 62.9 MB (estimated) Baseline: fillseq : 3.589 micros/op; 30.8 MB/s fillsync : 4165.299 micros/op; 0.0 MB/s (1000 ops) fillrandom : 5.864 micros/op; 18.9 MB/s overwrite : 7.830 micros/op; 14.1 MB/s readrandom : 5.534 micros/op; (1000000 of 1000000 found) readrandom : 4.292 micros/op; (1000000 of 1000000 found) readseq : 0.312 micros/op; 354.1 MB/s readreverse : 0.501 micros/op; 220.8 MB/s compact : 886211.000 micros/op; readrandom : 3.518 micros/op; (1000000 of 1000000 found) readseq : 0.251 micros/op; 441.2 MB/s readreverse : 0.456 micros/op; 242.4 MB/s fill100K : 1329.723 micros/op; 71.7 MB/s (1000 ops) crc32c : 1.976 micros/op; 1976.7 MB/s (4K per op) snappycomp : 4.705 micros/op; 830.2 MB/s (output: 55.1%) snappyuncomp : 0.958 micros/op; 4079.1 MB/s acquireload : 0.727 micros/op; (each op is 1000 loads) New: fillseq : 3.129 micros/op; 35.4 MB/s fillsync : 2748.099 micros/op; 0.0 MB/s (1000 ops) fillrandom : 5.394 micros/op; 20.5 MB/s overwrite : 7.253 micros/op; 15.3 MB/s readrandom : 5.655 micros/op; (1000000 of 1000000 found) readrandom : 4.425 micros/op; (1000000 of 1000000 found) readseq : 0.298 micros/op; 371.3 MB/s readreverse : 0.508 micros/op; 217.9 MB/s compact : 885842.000 micros/op; readrandom : 3.545 micros/op; (1000000 of 1000000 found) readseq : 0.252 micros/op; 438.2 MB/s readreverse : 0.425 micros/op; 260.2 MB/s fill100K : 1418.347 micros/op; 67.2 MB/s (1000 ops) crc32c : 1.987 micros/op; 1966.0 MB/s (4K per op) snappycomp : 4.767 micros/op; 819.4 MB/s (output: 55.1%) snappyuncomp : 0.916 micros/op; 4264.9 MB/s acquireload : 0.665 micros/op; (each op is 1000 loads) ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=194002392
43 lines
1.0 KiB
C++
43 lines
1.0 KiB
C++
// Copyright (c) 2018 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include <utility>
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#include "leveldb/slice.h"
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#include "leveldb/status.h"
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#include "util/testharness.h"
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namespace leveldb {
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TEST(Status, MoveConstructor) {
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{
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Status ok = Status::OK();
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Status ok2 = std::move(ok);
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ASSERT_TRUE(ok2.ok());
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}
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{
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Status status = Status::NotFound("custom NotFound status message");
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Status status2 = std::move(status);
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ASSERT_TRUE(status2.IsNotFound());
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ASSERT_EQ("NotFound: custom NotFound status message", status2.ToString());
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}
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{
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Status self_moved = Status::IOError("custom IOError status message");
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// Needed to bypass compiler warning about explicit move-assignment.
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Status& self_moved_reference = self_moved;
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self_moved_reference = std::move(self_moved);
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}
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}
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} // namespace leveldb
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int main(int argc, char** argv) {
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return leveldb::test::RunAllTests();
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}
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