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ircd::db: Add experimental universal compaction options section; minor reorg.

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This commit is contained in:
Jason Volk 2020-03-16 00:30:28 -07:00
parent 59dea0c8bb
commit 7f4b5fb69e
1 changed files with 27 additions and 16 deletions
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43
ircd/db.cc
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@ -1926,22 +1926,6 @@ ircd::db::database::column::column(database &d,
// More stats reported by the rocksdb.stats property.
this->options.report_bg_io_stats = true;
// Set the compaction style; we don't override this in the descriptor yet.
//this->options.compaction_style = rocksdb::kCompactionStyleNone;
this->options.compaction_style = rocksdb::kCompactionStyleLevel;
// Set the compaction priority from string in the descriptor
this->options.compaction_pri =
this->descriptor->compaction_pri == "kByCompensatedSize"?
rocksdb::CompactionPri::kByCompensatedSize:
this->descriptor->compaction_pri == "kMinOverlappingRatio"?
rocksdb::CompactionPri::kMinOverlappingRatio:
this->descriptor->compaction_pri == "kOldestSmallestSeqFirst"?
rocksdb::CompactionPri::kOldestSmallestSeqFirst:
this->descriptor->compaction_pri == "kOldestLargestSeqFirst"?
rocksdb::CompactionPri::kOldestLargestSeqFirst:
rocksdb::CompactionPri::kOldestLargestSeqFirst;
// Set filter reductions for this column. This means we expect a key to exist.
this->options.optimize_filters_for_hits = this->descriptor->expect_queries_hit;
@ -1964,6 +1948,23 @@ ircd::db::database::column::column(database &d,
this->options.min_write_buffer_number_to_merge = 4;
this->options.max_write_buffer_number_to_maintain = 0;
// Set the compaction style; we don't override this in the descriptor yet.
//this->options.compaction_style = rocksdb::kCompactionStyleNone;
this->options.compaction_style = rocksdb::kCompactionStyleLevel;
//this->options.compaction_style = rocksdb::kCompactionStyleUniversal;
// Set the compaction priority from string in the descriptor
this->options.compaction_pri =
this->descriptor->compaction_pri == "kByCompensatedSize"?
rocksdb::CompactionPri::kByCompensatedSize:
this->descriptor->compaction_pri == "kMinOverlappingRatio"?
rocksdb::CompactionPri::kMinOverlappingRatio:
this->descriptor->compaction_pri == "kOldestSmallestSeqFirst"?
rocksdb::CompactionPri::kOldestSmallestSeqFirst:
this->descriptor->compaction_pri == "kOldestLargestSeqFirst"?
rocksdb::CompactionPri::kOldestLargestSeqFirst:
rocksdb::CompactionPri::kOldestLargestSeqFirst;
this->options.num_levels = 7;
this->options.level0_file_num_compaction_trigger = 2;
this->options.disable_auto_compactions = false;
@ -1992,6 +1993,16 @@ ircd::db::database::column::column(database &d,
});
}
// Universal compaction options; these are unused b/c we don't use this
// style; they are here for hacking an experimentation for now.
this->options.compaction_options_universal.size_ratio = 1;
this->options.compaction_options_universal.min_merge_width = 2;
this->options.compaction_options_universal.max_merge_width = UINT_MAX;
this->options.compaction_options_universal.max_size_amplification_percent = 200;
this->options.compaction_options_universal.compression_size_percent = -1;
this->options.compaction_options_universal.stop_style = rocksdb::kCompactionStopStyleTotalSize;
this->options.compaction_options_universal.allow_trivial_move = false;;
//
// Table options
//