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/rocksdb-6.9/docs/_posts/
D2015-07-23-dynamic-level.markdown20 …space efficiency. We usually use the metric space amplification to measure the space efficiency. I…
23 …space amplification of level-based compaction? We focus specifically on the databases in steady st…
26 … last level to be 1000GB but the user data is only 200GB, then the actual space amplification will…
29 …ithin the range of the first level. In this way, we can achieve the 1.111 space amplification, wit…
D2016-01-29-compaction_pri.markdown24 …you have a use case where writes are uniformly distributed across the key space and you want to re…
28 …space in previous analysis. However, in many use cases, there are subset of keys that are frequent…
34 …t delete keys into the last level, the sooner the disk space is reclaimed, so it is good for space…
36 …ng compacted. The optimization is added to avoid the worst performance of space efficiency and que…
40 …ptions.h#L201-L226) to clean up old data to free up space. Picking files to compact may impact spa…
D2018-08-23-data-block-hash-index.markdown7 …d increasing the throughput for point lookup queries with a reasonable and tunable space overhead.
11 …creased by 10% under purely cached workloads, at an overhead of 4.6% more space. Shadow testing wi…
54 …. So a small util ratio has more benefit to reduce the CPU time but introduces more space overhead.
56 …. Each bucket is a `uint8_t` (i.e. one byte). For a util ratio of 1, the space overhead is 1Byte …
82 Adding the hash index to the end of the data block essentially takes up the data block cache space,…
106 … reduced by 21.8% and the overall throughput is increased by 10% at an overhead of 4.6% more space.
108 … purely cached. So we also evaluate the performance under different cache space pressure. In the f…
D2014-07-29-rocksdb-3-3-release.markdown21 …* **More effective on storage space reclaim**: RocksDB is now able to reclaim storage space more …
D2017-05-12-partitioned-index-filter.markdown8 …e size negatively affects the performance by i) occupying the block cache space that could otherwi…
12 …etime, not so much when they compete with data blocks for the block cache space and are also likel…
16 …ach other) on this scarce resource. A filter of size 5MB is occupying the space that could otherwi…
D2015-02-24-reading-rocksdb-options-from-a-file.markdown10 …umber=2; block_based_table_factory={block_size=4k};`. Similarly any white space around `{` or `}` …
D2019-03-08-format-version-4.markdown12 … reduces the index block size, in some cases around 4-5x. This frees more space in block cache, wh…
D2018-11-21-delete-range.markdown40 for space reclamation.
49 If space reclamation time is important, or it is important that the deleted
165 key-space and the y-axis is the sequence number.*
D2014-04-21-indexing-sst-files-for-better-lookup-performance.markdown22 …y exclude other files from the search. As a result we cut down the search space from 8 files to 3 …
/rocksdb-6.9/env/
Dfile_system.cc115 char* space = new char[kBufferSize]; in ReadFileToString() local
118 s = file->Read(kBufferSize, IOOptions(), &fragment, space, in ReadFileToString()
128 delete[] space; in ReadFileToString()
/rocksdb-6.9/utilities/transactions/
Doptimistic_transaction.cc97 const size_t space = txn_db_impl->GetLockBucketsSize(); in CommitWithParallelValidate() local
102 lk_idxes.insert(fastrange64(GetSliceNPHash64(keyit.first), space)); in CommitWithParallelValidate()
/rocksdb-6.9/util/
Dbloom_test.cc433 auto space = bits_builder->CalculateSpace(n); in TEST_P() local
434 auto n2 = bits_builder->CalculateNumEntry(space); in TEST_P()
437 EXPECT_EQ(space, space2); in TEST_P()
/rocksdb-6.9/docs/_sass/
D_react_header_nav.scss87 justify-content: space-between;
/rocksdb-6.9/
DWINDOWS_PORT.md73 … disk space for faster I/O thus compensating for the absence of `fallocate` although some differen…
DHISTORY.md32 …ause a corruption of the MANIFEST file in the middle when writing to it fails due to no disk space.
417 … as access statistics and size statistics, combining the dumped whole key space file to analyze, s…
488 … if they will result in max space errors. SstFileManager users can also use SetCompactionBufferSiz…
556 …r the desired period of time, yet are eventually processed in time and don't eat up too much space.
571 …that previously could not be dropped due to the snapshot. This alleviates space-amp caused by long…
1044 * RocksDB is now able to reclaim storage space more effectively during the compaction process. Thi…
/rocksdb-6.9/docs/_docs/
Dfaq.md44 [MyRocks](https://code.facebook.com/posts/190251048047090/myrocks-a-space-and-write-optimized-mysql…
/rocksdb-6.9/db/
Dversion_set.cc5532 const size_t space = (c->level() == 0 ? c->input_levels(0)->num_files + in MakeInputIterator() local
5535 InternalIterator** list = new InternalIterator* [space]; in MakeInputIterator()
5568 assert(num <= space); in MakeInputIterator()