11 Commits (85c0545facf4468f6efea9d3520387065ca33f98)

Author	SHA1	Message	Date
Kai Liu	59cffe02c4	Benchmark table reader wiht nanoseconds ... Summary: nanosecnods gave us better view of the performance, especially when some operations are fast so that micro seconds may only reveal less informative results. Test Plan: sample output: ./table_reader_bench --plain_table --time_unit=nanosecond ======================================================================================================= InMemoryTableSimpleBenchmark: PlainTable num_key1: 4096 num_key2: 512 non_empty ======================================================================================================= Histogram (unit: nanosecond): Count: 6291456 Average: 475.3867 StdDev: 556.05 Min: 135.0000 Median: 400.1817 Max: 33370.0000 Percentiles: P50: 400.18 P75: 530.02 P99: 887.73 P99.9: 8843.26 P99.99: 9941.21 ------------------------------------------------------ [ 120, 140 ) 2 0.000% 0.000% [ 140, 160 ) 452 0.007% 0.007% [ 160, 180 ) 13683 0.217% 0.225% [ 180, 200 ) 54353 0.864% 1.089% [ 200, 250 ) 101004 1.605% 2.694% [ 250, 300 ) 729791 11.600% 14.294% ## [ 300, 350 ) 616070 9.792% 24.086% ## [ 350, 400 ) 1628021 25.877% 49.963% ##### [ 400, 450 ) 647220 10.287% 60.250% ## [ 450, 500 ) 577206 9.174% 69.424% ## [ 500, 600 ) 1168585 18.574% 87.999% #### [ 600, 700 ) 506875 8.057% 96.055% ## [ 700, 800 ) 147878 2.350% 98.406% [ 800, 900 ) 42633 0.678% 99.083% [ 900, 1000 ) 16304 0.259% 99.342% [ 1000, 1200 ) 7811 0.124% 99.466% [ 1200, 1400 ) 1453 0.023% 99.490% [ 1400, 1600 ) 307 0.005% 99.494% [ 1600, 1800 ) 81 0.001% 99.496% [ 1800, 2000 ) 18 0.000% 99.496% [ 2000, 2500 ) 8 0.000% 99.496% [ 2500, 3000 ) 6 0.000% 99.496% [ 3500, 4000 ) 3 0.000% 99.496% [ 4000, 4500 ) 116 0.002% 99.498% [ 4500, 5000 ) 1144 0.018% 99.516% [ 5000, 6000 ) 1087 0.017% 99.534% [ 6000, 7000 ) 2403 0.038% 99.572% [ 7000, 8000 ) 9840 0.156% 99.728% [ 8000, 9000 ) 12820 0.204% 99.932% [ 9000, 10000 ) 3881 0.062% 99.994% [ 10000, 12000 ) 135 0.002% 99.996% [ 12000, 14000 ) 159 0.003% 99.998% [ 14000, 16000 ) 58 0.001% 99.999% [ 16000, 18000 ) 30 0.000% 100.000% [ 18000, 20000 ) 14 0.000% 100.000% [ 20000, 25000 ) 2 0.000% 100.000% [ 25000, 30000 ) 2 0.000% 100.000% [ 30000, 35000 ) 1 0.000% 100.000% Reviewers: haobo, dhruba, sdong CC: leveldb Differential Revision: https://reviews.facebook.net/D16113	11 years ago
sdong	b5140a0361	Fix table_reader_bench and add it to "make" ... Summary: Fix table_reader_bench after some interface changes. Add it to make to avoid future breaking Test Plan: make table_reader_bench and run it with different options. Reviewers: kailiu, haobo Reviewed By: haobo CC: igor, leveldb Differential Revision: https://reviews.facebook.net/D16107	11 years ago
Siying Dong	d169b67680	[Performance Branch] PlainTable to encode rows with seqID 0, value type using 1 internal byte. ... Summary: In PlainTable, use one single byte to represent 8 bytes of internal bytes, if seqID = 0 and it is value type (which should be common for bottom most files). It is to save 7 bytes for uncompressed cases. Test Plan: make all check Reviewers: haobo, dhruba, kailiu Reviewed By: haobo CC: igor, leveldb Differential Revision: https://reviews.facebook.net/D15489	11 years ago
kailiu	4f6cb17bdb	First phase API clean up ... Summary: Addressed all the issues in https://reviews.facebook.net/D15447. Now most table-related modules are hidden from user land. Test Plan: make check Reviewers: sdong, haobo, dhruba CC: leveldb Differential Revision: https://reviews.facebook.net/D15525	11 years ago
Siying Dong	abaf26266d	[RocksDB] [Performance Branch] Some Changes to PlainTable format ... Summary: Some changes to PlainTable format: (1) support variable key length (2) use user defined slice transformer to extract prefixes (3) Run some test cases against PlainTable in db_test and table_test Test Plan: test db_test Reviewers: haobo, kailiu CC: dhruba, igor, leveldb, nkg- Differential Revision: https://reviews.facebook.net/D14457	11 years ago
Siying Dong	dfa1460d88	[For Performance Branch] Bloom filter in PlainTableIterator::Seek() - Update 1 ... Summary: Address @haobo's comments in D14277 Test Plan: ./indexed_table_db_test Reviewers: haobo CC: Task ID: # Blame Rev:	11 years ago
Siying Dong	718488abc5	Add BloomFilter to PlainTableIterator::Seek() ... Summary: This patch adds a simple bloom filter in PlainTableIterator::Seek() Test Plan: N/A Reviewers: CC: Task ID: # Blame Rev:	11 years ago
Siying Dong	b59d4d5a50	A Simple Plain Table ... Summary: A Simple plain table format. No block structure. When creating the table reader, scanning the full table to create indexes. Test Plan:Add unit test Reviewers:haobo,dhruba,kailiu CC: Task ID: # Blame Rev:	11 years ago
Siying Dong	55baa3d955	Add an option to table_reader_bench to access the table from DB And Iterating non-existing prefix case. ... Summary: This patch adds an option to table_reader_bench that queries run against DB level (which has one table). It is useful if user wants to see the extra costs DB level introduces. Test Plan: Run the benchmark with and without the new parameter Reviewers: haobo, dhruba, kailiu Reviewed By: kailiu CC: leveldb Differential Revision: https://reviews.facebook.net/D13863	11 years ago
Siying Dong	82b7e37f6e	Fix a bug of table_reader_bench ... Summary: Iterator benchmark case is timed incorrectly. Fix it Test Plan: Run the benchmark Reviewers: haobo, dhruba Reviewed By: haobo CC: leveldb Differential Revision: https://reviews.facebook.net/D13845	11 years ago
Siying Dong	7caadf2e52	A very simple benchmark to measure Table implemenation's Get() And Iterator performance ... Summary: It is a very simple benchmark to measure a Table implementation's Get() and iterator performance if all the data is in memory. Test Plan: N/A Reviewers: dhruba, haobo, kailiu Reviewed By: haobo CC: leveldb Differential Revision: https://reviews.facebook.net/D13743	11 years ago