49623f9c8e
Summary: **Context:** Through heap profiling, we discovered that `BlockBasedTableReader` objects can accumulate and lead to high memory usage (e.g, `max_open_file = -1`). These memories are currently not saved, not tracked, not constrained and not cache evict-able. As a first step to improve this, similar to https://github.com/facebook/rocksdb/pull/8428, this PR is to track an estimate of `BlockBasedTableReader` object's memory in block cache and fail future creation if the memory usage exceeds the available space of cache at the time of creation. **Summary:** - Approximate big memory users (`BlockBasedTable::Rep` and `TableProperties` )' memory usage in addition to the existing estimated ones (filter block/index block/un-compression dictionary) - Charge all of these memory usages to block cache on `BlockBasedTable::Open()` and release them on `~BlockBasedTable()` as there is no memory usage fluctuation of concern in between - Refactor on CacheReservationManager (and its call-sites) to add concurrent support for BlockBasedTable used in this PR. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9748 Test Plan: - New unit tests - db bench: `OpenDb` : **-0.52% in ms** - Setup `./db_bench -benchmarks=fillseq -db=/dev/shm/testdb -disable_auto_compactions=1 -write_buffer_size=1048576` - Repeated run with pre-change w/o feature and post-change with feature, benchmark `OpenDb`: `./db_bench -benchmarks=readrandom -use_existing_db=1 -db=/dev/shm/testdb -reserve_table_reader_memory=true (remove this when running w/o feature) -file_opening_threads=3 -open_files=-1 -report_open_timing=true| egrep 'OpenDb:'` #-run | (feature-off) avg milliseconds | std milliseconds | (feature-on) avg milliseconds | std milliseconds | change (%) -- | -- | -- | -- | -- | -- 10 | 11.4018 | 5.95173 | 9.47788 | 1.57538 | -16.87382694 20 | 9.23746 | 0.841053 | 9.32377 | 1.14074 | 0.9343477536 40 | 9.0876 | 0.671129 | 9.35053 | 1.11713 | 2.893283155 80 | 9.72514 | 2.28459 | 9.52013 | 1.0894 | -2.108041632 160 | 9.74677 | 0.991234 | 9.84743 | 1.73396 | 1.032752389 320 | 10.7297 | 5.11555 | 10.547 | 1.97692 | **-1.70275031** 640 | 11.7092 | 2.36565 | 11.7869 | 2.69377 | **0.6635807741** - db bench on write with cost to cache in WriteBufferManager (just in case this PR's CRM refactoring accidentally slows down anything in WBM) : `fillseq` : **+0.54% in micros/op** `./db_bench -benchmarks=fillseq -db=/dev/shm/testdb -disable_auto_compactions=1 -cost_write_buffer_to_cache=true -write_buffer_size=10000000000 | egrep 'fillseq'` #-run | (pre-PR) avg micros/op | std micros/op | (post-PR) avg micros/op | std micros/op | change (%) -- | -- | -- | -- | -- | -- 10 | 6.15 | 0.260187 | 6.289 | 0.371192 | 2.260162602 20 | 7.28025 | 0.465402 | 7.37255 | 0.451256 | 1.267813605 40 | 7.06312 | 0.490654 | 7.13803 | 0.478676 | **1.060579461** 80 | 7.14035 | 0.972831 | 7.14196 | 0.92971 | **0.02254791432** - filter bench: `bloom filter`: **-0.78% in ms/key** - ` ./filter_bench -impl=2 -quick -reserve_table_builder_memory=true | grep 'Build avg'` #-run | (pre-PR) avg ns/key | std ns/key | (post-PR) ns/key | std ns/key | change (%) -- | -- | -- | -- | -- | -- 10 | 26.4369 | 0.442182 | 26.3273 | 0.422919 | **-0.4145720565** 20 | 26.4451 | 0.592787 | 26.1419 | 0.62451 | **-1.1465262** - Crash test `python3 tools/db_crashtest.py blackbox --reserve_table_reader_memory=1 --cache_size=1` killed as normal Reviewed By: ajkr Differential Revision: D35136549 Pulled By: hx235 fbshipit-source-id: 146978858d0f900f43f4eb09bfd3e83195e3be28 |
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.. | ||
aligned_buffer.h | ||
autovector_test.cc | ||
autovector.h | ||
bloom_impl.h | ||
bloom_test.cc | ||
build_version.cc.in | ||
cast_util.h | ||
channel.h | ||
coding_lean.h | ||
coding_test.cc | ||
coding.cc | ||
coding.h | ||
compaction_job_stats_impl.cc | ||
comparator.cc | ||
compression_context_cache.cc | ||
compression_context_cache.h | ||
compression.cc | ||
compression.h | ||
concurrent_task_limiter_impl.cc | ||
concurrent_task_limiter_impl.h | ||
core_local.h | ||
crc32c_arm64.cc | ||
crc32c_arm64.h | ||
crc32c_ppc_asm.S | ||
crc32c_ppc_constants.h | ||
crc32c_ppc.c | ||
crc32c_ppc.h | ||
crc32c_test.cc | ||
crc32c.cc | ||
crc32c.h | ||
defer_test.cc | ||
defer.h | ||
duplicate_detector.h | ||
dynamic_bloom_test.cc | ||
dynamic_bloom.cc | ||
dynamic_bloom.h | ||
fastrange.h | ||
file_checksum_helper.cc | ||
file_checksum_helper.h | ||
file_reader_writer_test.cc | ||
filelock_test.cc | ||
filter_bench.cc | ||
gflags_compat.h | ||
hash128.h | ||
hash_map.h | ||
hash_test.cc | ||
hash.cc | ||
hash.h | ||
heap_test.cc | ||
heap.h | ||
kv_map.h | ||
log_write_bench.cc | ||
math128.h | ||
math.h | ||
murmurhash.cc | ||
murmurhash.h | ||
mutexlock.h | ||
ppc-opcode.h | ||
random_test.cc | ||
random.cc | ||
random.h | ||
rate_limiter_test.cc | ||
rate_limiter.cc | ||
rate_limiter.h | ||
repeatable_thread_test.cc | ||
repeatable_thread.h | ||
ribbon_alg.h | ||
ribbon_config.cc | ||
ribbon_config.h | ||
ribbon_impl.h | ||
ribbon_test.cc | ||
set_comparator.h | ||
slice_test.cc | ||
slice_transform_test.cc | ||
slice.cc | ||
status.cc | ||
stderr_logger.h | ||
stop_watch.h | ||
string_util.cc | ||
string_util.h | ||
thread_guard.h | ||
thread_list_test.cc | ||
thread_local_test.cc | ||
thread_local.cc | ||
thread_local.h | ||
thread_operation.h | ||
threadpool_imp.cc | ||
threadpool_imp.h | ||
timer_queue_test.cc | ||
timer_queue.h | ||
timer_test.cc | ||
timer.h | ||
user_comparator_wrapper.h | ||
vector_iterator.h | ||
work_queue_test.cc | ||
work_queue.h | ||
xxhash.cc | ||
xxhash.h | ||
xxph3.h |