Created
July 5, 2014 17:57
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PGO results for LMDB in-memory
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| violino:~/OD/mdb/libraries/liblmdb> rm -rf /tmp/leveldbtest-1000/* | |
| violino:~/OD/mdb/libraries/liblmdb> ./db_bench_mdb.no_profile --num=10000000 | |
| LMDB: version LMDB 0.9.14: (June 20, 2014) | |
| Date: Sat Jul 5 10:47:17 2014 | |
| CPU: 4 * Intel(R) Core(TM)2 Extreme CPU Q9300 @ 2.53GHz | |
| CPUCache: 6144 KB | |
| Keys: 16 bytes each | |
| Values: 100 bytes each (50 bytes after compression) | |
| Entries: 10000000 | |
| RawSize: 1106.3 MB (estimated) | |
| FileSize: 629.4 MB (estimated) | |
| ------------------------------------------------ | |
| fillrandsync : 6.018 micros/op 166162 ops/sec; 18.4 MB/s (10000 ops) | |
| 1888 /tmp/leveldbtest-1000/dbbench_mdb-1 | |
| 1888 /tmp/leveldbtest-1000 | |
| fillrandom : 5.299 micros/op 188712 ops/sec; 20.9 MB/s | |
| 1166112 /tmp/leveldbtest-1000/dbbench_mdb-2 | |
| 1166112 /tmp/leveldbtest-1000 | |
| fillrandbatch : 4.702 micros/op 212694 ops/sec; 23.5 MB/s | |
| 1180420 /tmp/leveldbtest-1000/dbbench_mdb-3 | |
| 1180420 /tmp/leveldbtest-1000 | |
| fillseqsync : 4.608 micros/op 217004 ops/sec; 24.0 MB/s (10000 ops) | |
| 1312 /tmp/leveldbtest-1000/dbbench_mdb-4 | |
| 1312 /tmp/leveldbtest-1000 | |
| fillseq : 2.308 micros/op 433367 ops/sec; 47.9 MB/s | |
| 1258128 /tmp/leveldbtest-1000/dbbench_mdb-5 | |
| 1258128 /tmp/leveldbtest-1000 | |
| fillseqbatch : 0.440 micros/op 2271685 ops/sec; 251.3 MB/s | |
| 1258128 /tmp/leveldbtest-1000/dbbench_mdb-6 | |
| 1258128 /tmp/leveldbtest-1000 | |
| overwrite : 6.071 micros/op 164706 ops/sec; 18.2 MB/s | |
| 1258128 /tmp/leveldbtest-1000/dbbench_mdb-6 | |
| 1258128 /tmp/leveldbtest-1000 | |
| readrandom : 1.690 micros/op 591578 ops/sec; (10000000 of 10000000 found) | |
| readseq : 0.055 micros/op 18098499 ops/sec; 2002.2 MB/s | |
| readreverse : 0.051 micros/op 19581542 ops/sec; 2166.2 MB/s |
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| violino:~/OD/mdb/libraries/liblmdb> rm -rf /tmp/leveldbtest-1000/* | |
| violino:~/OD/mdb/libraries/liblmdb> ./db_bench_mdb.profiled --num=10000000 | |
| LMDB: version LMDB 0.9.14: (June 20, 2014) | |
| Date: Sat Jul 5 10:43:50 2014 | |
| CPU: 4 * Intel(R) Core(TM)2 Extreme CPU Q9300 @ 2.53GHz | |
| CPUCache: 6144 KB | |
| Keys: 16 bytes each | |
| Values: 100 bytes each (50 bytes after compression) | |
| Entries: 10000000 | |
| RawSize: 1106.3 MB (estimated) | |
| FileSize: 629.4 MB (estimated) | |
| ------------------------------------------------ | |
| fillrandsync : 5.662 micros/op 176612 ops/sec; 19.5 MB/s (10000 ops) | |
| 1888 /tmp/leveldbtest-1000/dbbench_mdb-1 | |
| 1888 /tmp/leveldbtest-1000 | |
| fillrandom : 4.909 micros/op 203697 ops/sec; 22.5 MB/s | |
| 1166112 /tmp/leveldbtest-1000/dbbench_mdb-2 | |
| 1166112 /tmp/leveldbtest-1000 | |
| fillrandbatch : 4.620 micros/op 216433 ops/sec; 23.9 MB/s | |
| 1180420 /tmp/leveldbtest-1000/dbbench_mdb-3 | |
| 1180420 /tmp/leveldbtest-1000 | |
| fillseqsync : 4.326 micros/op 231171 ops/sec; 25.6 MB/s (10000 ops) | |
| 1312 /tmp/leveldbtest-1000/dbbench_mdb-4 | |
| 1312 /tmp/leveldbtest-1000 | |
| fillseq : 1.984 micros/op 504040 ops/sec; 55.8 MB/s | |
| 1258128 /tmp/leveldbtest-1000/dbbench_mdb-5 | |
| 1258128 /tmp/leveldbtest-1000 | |
| fillseqbatch : 0.424 micros/op 2359528 ops/sec; 261.0 MB/s | |
| 1258128 /tmp/leveldbtest-1000/dbbench_mdb-6 | |
| 1258128 /tmp/leveldbtest-1000 | |
| overwrite : 5.620 micros/op 177921 ops/sec; 19.7 MB/s | |
| 1258128 /tmp/leveldbtest-1000/dbbench_mdb-6 | |
| 1258128 /tmp/leveldbtest-1000 | |
| readrandom : 1.585 micros/op 631099 ops/sec; (10000000 of 10000000 found) | |
| readseq : 0.054 micros/op 18570309 ops/sec; 2054.4 MB/s | |
| readreverse : 0.049 micros/op 20518207 ops/sec; 2269.9 MB/s |
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| fillrandsync 1.062 (6.2% speedup) | |
| fillrandom 1.079 | |
| fillrandbatch 1.017 | |
| fillseqsync 1.065 | |
| fillseq 1.163 | |
| fillseqbatch 1.038 | |
| overwrite 1.080 | |
| readrandom 1.066 | |
| readseq 1.026 | |
| readreverse 1.047 |
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Using gcc (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3