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add db_bench options for partitioning 

Summary: Closes https://github.com/facebook/rocksdb/pull/2456

Differential Revision: D5259083

Pulled By: maysamyabandeh

fbshipit-source-id: 1ed1746da7a8baadf4772d023d927c6c4e6b112a
This commit is contained in:
Maysam Yabandeh 2017-06-15 16:06:22 -07:00 committed by Facebook Github Bot
parent 6a3377f454
commit c80c6115de
1 changed files with 25 additions and 1 deletions
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26
tools/db_bench_tool.cc
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@ -385,6 +385,18 @@ DEFINE_int64(simcache_size, -1,
DEFINE_bool(cache_index_and_filter_blocks, false,
"Cache index/filter blocks in block cache.");
DEFINE_bool(partition_index_and_filters, false,
"Partition index and filter blocks.");
DEFINE_int64(metadata_block_size,
rocksdb::BlockBasedTableOptions().metadata_block_size,
"Max partition size when partitioning index/filters");
// The default reduces the overhead of reading time with flash. With HDD, which
// offers much less throughput, however, this number better to be set to 1.
DEFINE_int32(ops_between_duration_checks, 1000,
"Check duration limit every x ops");
DEFINE_bool(pin_l0_filter_and_index_blocks_in_cache, false,
"Pin index/filter blocks of L0 files in block cache.");
@ -1768,7 +1780,8 @@ class Duration {
if (max_seconds_) {
// Recheck every appx 1000 ops (exact iff increment is factor of 1000)
if ((ops_/1000) != ((ops_-increment)/1000)) {
auto granularity = FLAGS_ops_between_duration_checks;
if ((ops_ / granularity) != ((ops_ - increment) / granularity)) {
uint64_t now = FLAGS_env->NowMicros();
return ((now - start_at_) / 1000000) >= max_seconds_;
} else {
@ -2976,6 +2989,17 @@ void VerifyDBFromDB(std::string& truth_db_name) {
} else {
block_based_options.index_type = BlockBasedTableOptions::kBinarySearch;
}
if (FLAGS_partition_index_and_filters) {
if (FLAGS_use_hash_search) {
fprintf(stderr,
"use_hash_search is incompatible with "
"partition_index_and_filters and is ignored");
}
block_based_options.index_type =
BlockBasedTableOptions::kTwoLevelIndexSearch;
block_based_options.partition_filters = true;
block_based_options.metadata_block_size = FLAGS_metadata_block_size;
}
if (cache_ == nullptr) {
block_based_options.no_block_cache = true;
}