2024/08/20-16:13:14.922253 140500212889152 DEBG dcompact_worker.cpp:2211: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00: fork to child time = 0.014453 sec 2024/08/20-16:13:14.923580 140500212889152 DEBG dcompact_worker.cpp:1011: Beg SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00 2024/08/20-16:13:14.929437 140500212889152 DEBG dcompact_worker.cpp:1031: End SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00 2024/08/20-16:13:14.935901 140500212889152 TRAC dcompact_worker.cpp:1081: INFO_LOG_LEVEL: rpc = INFO_LEVEL, env_var = undefined 2024/08/20-16:13:14.936235 140500212889152 [WARN] [column_family.cc:386] multiple cf_paths/db_paths and level_compaction_dynamic_level_bytes can't be used together 2024/08/20-16:13:14.977185 140500212889152 [version_set.cc:6139] Recovering from manifest file: /worker/dcompact-log/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/2024-08-20T02.42.00/.rocksdb/job-38873/att-00/MANIFEST-14629260 2024/08/20-16:13:15.029837 140500212889152 [version_set.cc:6182] Recovered from manifest file:/worker/dcompact-log/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/2024-08-20T02.42.00/.rocksdb/job-38873/att-00/MANIFEST-14629260 succeeded,manifest_file_number is 14629260, next_file_number is 14674054, last_sequence is 190767249639, log_number is 0,prev_log_number is 0,max_column_family is 0,min_log_number_to_keep is 14674012 2024/08/20-16:13:15.029846 140500212889152 [version_set.cc:6197] Column family [default] (ID 0), log number is 0 2024/08/20-16:13:15.029916 140500212889152 [version_set.cc:5652] Creating manifest 14674054 2024/08/20-16:13:15.062780 140500212889152 DEBG dcompact_worker.cpp:1215: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00: bottommost_level: fake = 1, rpc = 0 2024/08/20-16:13:15.077129 140500212889152 [compaction_job.cc:2433] [default] [JOB 38873] Compacting 1@1 + 2@2 files to L2, score 0.99, subcompactions 1 : 1 2024/08/20-16:13:15.077145 140500212889152 [compaction_job.cc:2441] [default]: Compaction start summary: Base version 19864 Base level 1, inputs: [14674045(18MB)], [14674002(20MB) 14674003(12MB)] 2024/08/20-16:13:15.225625 140500212889152 [top_zip_table.cc:59] core git_version_hash_info_is:commit 7517bad5c1a147474c3830831b9a22c996321ae8 Author: leipeng Date: 2024-01-08 19:18:17 +0800 vfork_cmd: call close before wait_finish g++ (GCC) 12.1.0 Copyright (C) 2022 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. INCS = -Isrc -I3rdparty/re2 -I3rdparty/zstd -Iboost-include CXXFLAGS = -D TOPLING_IO_WITH_URING=1 -fPIC -time -Wno-class-memaccess -fdiagnostics-color -Wformat=2 -Wcomment -Wall -Wextra -Wno-unused-parameter -Wno-alloc-size-larger-than -mcx16 -Wno-deprecated-declarations -Wstrict-aliasing=3 -DCLIENT_LICENSE_ID="public" -DNO_THREADS -ftls-model=initial-exec -DDIVSUFSORT_API= -fno-stack-protector RLS_FLAGS = -O3 -DNDEBUG -g3 WITH_BMI2 = 1 compile_cpu_flag: -march=haswell -mbmi -mbmi2 2024/08/20-16:13:15.225659 140500212889152 [top_zip_table.cc:60] fsa git_version_hash_info_is:commit 7517bad5c1a147474c3830831b9a22c996321ae8 Author: leipeng Date: 2024-01-08 19:18:17 +0800 vfork_cmd: call close before wait_finish g++ (GCC) 12.1.0 Copyright (C) 2022 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. INCS = -Isrc -I3rdparty/re2 -I3rdparty/zstd -Iboost-include CXXFLAGS = -D TOPLING_IO_WITH_URING=1 -fPIC -time -Wno-class-memaccess -fdiagnostics-color -Wformat=2 -Wcomment -Wall -Wextra -Wno-unused-parameter -Wno-alloc-size-larger-than -mcx16 -Wno-deprecated-declarations -Wstrict-aliasing=3 -DCLIENT_LICENSE_ID="public" -DNO_THREADS -ftls-model=initial-exec -DDIVSUFSORT_API= -fno-stack-protector RLS_FLAGS = -O3 -DNDEBUG -g3 WITH_BMI2 = 1 compile_cpu_flag: -march=haswell -mbmi -mbmi2 2024/08/20-16:13:15.225683 140500212889152 [top_zip_table.cc:61] zbs git_version_hash_info_is:commit 7517bad5c1a147474c3830831b9a22c996321ae8 Author: leipeng Date: 2024-01-08 19:18:17 +0800 vfork_cmd: call close before wait_finish g++ (GCC) 12.1.0 Copyright (C) 2022 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. INCS = -Isrc -I3rdparty/re2 -I3rdparty/zstd -Iboost-include CXXFLAGS = -D TOPLING_IO_WITH_URING=1 -fPIC -time -Wno-class-memaccess -fdiagnostics-color -Wformat=2 -Wcomment -Wall -Wextra -Wno-unused-parameter -Wno-alloc-size-larger-than -mcx16 -Wno-deprecated-declarations -Wstrict-aliasing=3 -DCLIENT_LICENSE_ID="public" -DNO_THREADS -ftls-model=initial-exec -DDIVSUFSORT_API= -fno-stack-protector RLS_FLAGS = -O3 -DNDEBUG -g3 WITH_BMI2 = 1 compile_cpu_flag: -march=haswell -mbmi -mbmi2 2024/08/20-16:13:15.225697 140500212889152 [top_zip_table.cc:62] topling-zip_table_reader: git_version_hash_info_is: commit 7f80399bfbd2071b6e0f5683e8ab7225b8e6e394 Author: leipeng Date: 2024-01-19 14:52:30 +0800 Change ToplingZipTableOptions::sampleRatio to vector g++ (GCC) 12.1.0 Copyright (C) 2022 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. cpu_flag: -march=native -mbmi -mbmi2 2024/08/20-16:13:15.225712 140500212889152 [top_zip_table.cc:64] topling-rocks git_version_hash_info_is: commit 1240987ca13d0fe562c9b9c037155079f0877840 Author: leipeng Date: 2024-01-19 15:07:04 +0800 Change ToplingZipTableOptions::sampleRatio to vector g++ (GCC) 12.1.0 Copyright (C) 2022 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. cpu_flag: -march=native -mbmi -mbmi2 2024/08/20-16:13:15.404849 140500212889152 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674055.sst) /dev/shm/ToplingTemp/Topling-419383-VwhuFW 2024/08/20-16:13:15.918300 140500212889152 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674055.sst): first pass time = 0.51's, 130.718'MB/sec 2024/08/20-16:13:18.262488 140500212889152 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674055.sst): old prealloc_size = 60174519, real_size = 20088128 2024/08/20-16:13:18.262901 140500212889152 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674055.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 465485 prefix = 4 raw-key = 0.0074 GB zip-key = 0.0009 GB avg-key = 16.00 avg-zkey = 1.93 raw-val = 0.0541 GB zip-val = 0.0191 GB avg-val = 116.17 avg-zval = 40.98 2024/08/20-16:13:18.263553 140500212889152 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674055.sst: sumWaitingMem = 0.001 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0011 GB, waited 0.000 sec, Key+Value = 0.067 GB 2024/08/20-16:13:19.097336 140500212889152 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674055.sst): second pass time = 2.34's, 23.080'MB/sec, value only(80.6% of KV) wait indexing time = 0.00's, remap KeyValue time = 0.83's, 26.393'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 2219.542'MB/sec (index lex order gen) rebuild zvType time = 0.65's, 0.179'MB/sec write SST data time = 0.18's, 119.843'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 0.544'MB, throughput = 7677.872'MB/sec zip my value time = 2.34's, unzip length = 0.054'GB zip my value throughput = 23.080'MB/sec zip pipeline throughput = 47.716'MB/sec entries = 465485 avg-key = 28.00 avg-zkey = 1.93 avg-val = 116.17 avg-zval = 40.98 usrkeys = 465485 avg-key = 20.00 avg-zkey = 1.93 avg-val = 123.17 avg-zval = 40.98 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 465485 bytes = 1512848 } seq expand size = 3258395 multi value expand size = 0 cnt WriteAppend = 22 UnZipSize{ index = 0.0093 GB value = 0.0541 GB dict = 0.54 MB all = 0.0671 GB } __ZipSize{ index = 0.0009 GB value = 0.0191 GB dict = 0.54 MB all = 0.0220 GB } UnZip/Zip{ index = 10.3636 value = 2.8351 dict = 1.00 all = 3.0457 } Zip/UnZip{ index = 0.0965 value = 0.3527 dict = 1.00 all = 0.3283 } ---------------------------- total value len = 62.354084 GB avg = 0.180 KB (by entry num) total key len = 6.801791 GB avg = 0.020 KB total ukey len = 3.198817 GB avg = 0.008 KB total ukey num = 0.389799046 Billion total entry num = 0.346677054 Billion write speed all = 0.847935996 MB/sec (with seq num) write speed all = 0.813930503 MB/sec (without seq num) 2024/08/20-16:13:19.138235 140500212889152 [compaction_job.cc:1944] [default] [JOB 38873] Generated table #14674055: 465485 keys, 22034264 bytes, temperature: kWarm 2024/08/20-16:13:19.138465 140500212889152 EVENT_LOG_v1 {"time_micros": 1724141599138278, "cf_name": "default", "job": 38873, "event": "table_file_creation", "file_number": 14674055, "file_size": 22034264, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 190713758253, "largest_seqno": 190767210855, "table_properties": {"data_size": 19073264, "index_size": 898304, "index_partitions": 0, "top_level_index_size": 0, "index_key_is_user_key": 0, "index_value_is_delta_encoded": 0, "filter_size": 0, "raw_key_size": 13033580, "raw_average_key_size": 28, "raw_value_size": 54075418, "raw_average_value_size": 116, "num_data_blocks": 1, "num_entries": 465485, "num_filter_entries": 0, "num_deletions": 0, "num_merge_operands": 0, "num_range_deletions": 0, "format_version": 0, "fixed_key_len": 28, "fixed_value_len": 18446744073709551615, "filter_policy": "", "column_family_name": "default", "column_family_id": 0, "comparator": "leveldb.BytewiseComparator", "merge_operator": "nullptr", "prefix_extractor_name": "nullptr", "property_collectors": "[Rdb_tbl_prop_coll_factory]", "compression": "FlatZip", "compression_options": "RS_Key0_Tag1-NestLoudsTrieDAWG_Mixed_XL_256_32_FL-DictZipBlobStore", "creation_time": 1724141595, "oldest_key_time": 0, "file_creation_time": 1724141595, "slow_compression_estimated_data_size": 0, "fast_compression_estimated_data_size": 0, "db_id": "a007a635-5c0a-4b4a-be96-b9c695cb016b", "db_session_id": "90ZT1ZM5QNL093I8HHQG", "orig_file_number": 14674055, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-16:13:19.191180 140500212889152 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674056.sst) /dev/shm/ToplingTemp/Topling-419383-8TTLfZ 2024/08/20-16:13:19.791430 140500212889152 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674056.sst): first pass time = 0.60's, 100.571'MB/sec 2024/08/20-16:13:23.972265 140500212889152 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674056.sst): old prealloc_size = 60174519, real_size = 17581008 2024/08/20-16:13:23.972631 140500212889152 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674056.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 419821 prefix = 4 raw-key = 0.0067 GB zip-key = 0.0008 GB avg-key = 16.00 avg-zkey = 1.91 raw-val = 0.0486 GB zip-val = 0.0167 GB avg-val = 115.78 avg-zval = 39.72 2024/08/20-16:13:23.973009 140500212889152 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674056.sst: sumWaitingMem = 0.001 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0010 GB, waited 0.000 sec, Key+Value = 0.060 GB 2024/08/20-16:13:24.616643 140500212889152 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00/14674056.sst): second pass time = 4.18's, 11.628'MB/sec, value only(80.5% of KV) wait indexing time = 0.00's, remap KeyValue time = 0.64's, 29.847'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 2329.964'MB/sec (index lex order gen) rebuild zvType time = 0.47's, 0.224'MB/sec write SST data time = 0.18's, 109.173'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 0.494'MB, throughput = 10757.791'MB/sec zip my value time = 4.18's, unzip length = 0.049'GB zip my value throughput = 11.628'MB/sec zip pipeline throughput = 165.716'MB/sec entries = 419821 avg-key = 28.00 avg-zkey = 1.91 avg-val = 115.78 avg-zval = 39.72 usrkeys = 419821 avg-key = 20.00 avg-zkey = 1.91 avg-val = 122.78 avg-zval = 39.72 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 419821 bytes = 1259472 } seq expand size = 2938747 multi value expand size = 0 cnt WriteAppend = 13 UnZipSize{ index = 0.0084 GB value = 0.0486 GB dict = 0.49 MB all = 0.0604 GB } __ZipSize{ index = 0.0008 GB value = 0.0167 GB dict = 0.49 MB all = 0.0192 GB } UnZip/Zip{ index = 10.4972 value = 2.9148 dict = 1.00 all = 3.1386 } Zip/UnZip{ index = 0.0953 value = 0.3431 dict = 1.00 all = 0.3186 } ---------------------------- total value len = 62.405629 GB avg = 0.180 KB (by entry num) total key len = 6.813546 GB avg = 0.020 KB total ukey len = 3.207214 GB avg = 0.008 KB total ukey num = 0.390218867 Billion total entry num = 0.347096875 Billion write speed all = 0.848654711 MB/sec (with seq num) write speed all = 0.814610342 MB/sec (without seq num) 2024/08/20-16:13:24.652041 140500212889152 [compaction_job.cc:1944] [default] [JOB 38873] Generated table #14674056: 419821 keys, 19232400 bytes, temperature: kWarm 2024/08/20-16:13:24.652125 140500212889152 EVENT_LOG_v1 {"time_micros": 1724141604652078, "cf_name": "default", "job": 38873, "event": "table_file_creation", "file_number": 14674056, "file_size": 19232400, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 190751221153, "largest_seqno": 190767216144, "table_properties": {"data_size": 16675968, "index_size": 799872, "index_partitions": 0, "top_level_index_size": 0, "index_key_is_user_key": 0, "index_value_is_delta_encoded": 0, "filter_size": 0, "raw_key_size": 11754988, "raw_average_key_size": 28, "raw_value_size": 48607146, "raw_average_value_size": 115, "num_data_blocks": 1, "num_entries": 419821, "num_filter_entries": 0, "num_deletions": 0, "num_merge_operands": 0, "num_range_deletions": 0, "format_version": 0, "fixed_key_len": 28, "fixed_value_len": 18446744073709551615, "filter_policy": "", "column_family_name": "default", "column_family_id": 0, "comparator": "leveldb.BytewiseComparator", "merge_operator": "nullptr", "prefix_extractor_name": "nullptr", "property_collectors": "[Rdb_tbl_prop_coll_factory]", "compression": "FlatZip", "compression_options": "RS_Key0_Tag1-NestLoudsTrieDAWG_Mixed_XL_256_32_FL-DictZipBlobStore", "creation_time": 1724141599, "oldest_key_time": 0, "file_creation_time": 1724141599, "slow_compression_estimated_data_size": 0, "fast_compression_estimated_data_size": 0, "db_id": "a007a635-5c0a-4b4a-be96-b9c695cb016b", "db_session_id": "90ZT1ZM5QNL093I8HHQG", "orig_file_number": 14674056, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-16:13:24.679138 140500212889152 [compaction_job.cc:699] job-38873: subcompact[0], size: 0.041267 G, files: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-38873/att-00 [14674055,14674056] 2024/08/20-16:13:24.707491 140500212889152 (Original Log Time 2024/08/20-16:13:15.077216) EVENT_LOG_v1 {"time_micros": 1724141595077159, "job": 38873, "event": "compaction_started", "compaction_reason": "FilesMarkedForCompaction", "files_L1": [14674045], "files_L2": [14674002, 14674003], "score": 0.990679, "input_data_size": 54704109, "oldest_snapshot_seqno": 190767249523} 2024/08/20-16:13:24.707497 140500212889152 (Original Log Time 2024/08/20-16:13:24.707017) [compaction_job.cc:2018] [default] [JOB 38873] Compacted 1@1 + 2@2 files to L2 => 41266664 bytes 2024/08/20-16:13:24.707499 140500212889152 (Original Log Time 2024/08/20-16:13:24.707406) [compaction_job.cc:1220] [default] compacted to: files[0 0 2 0 0 0 0] max score 0.02, MB/sec: 5.7 rd, 4.3 wr, level 2, files in(1, 2) out(2 +0 blob) MB in(18.5, 33.7 +0.0 blob) out(39.4 +0.0 blob), read-write-amplify(4.9) write-amplify(2.1) OK, records in: 885306, records dropped: 0 output_compression: Snappy 2024/08/20-16:13:24.707510 140500212889152 (Original Log Time 2024/08/20-16:13:24.707463) EVENT_LOG_v1 {"time_micros": 1724141604707436, "cf": "default", "job": 38873, "event": "compaction_finished", "compaction_time_micros": 9601937, "compaction_time_cpu_micros": 1977321, "output_level": 2, "num_output_files": 2, "total_output_size": 41266664, "num_input_records": 885306, "num_output_records": 885306, "num_subcompactions": 1, "output_compression": "Snappy", "num_single_delete_mismatches": 0, "num_single_delete_fallthrough": 0, "file_write_nanos": 61396801, "file_range_sync_nanos": 0, "file_fsync_nanos": 1824, "file_prepare_write_nanos": 8368, "lsm_state": [0, 0, 2, 0, 0, 0, 0]} 2024/08/20-16:13:24.854843 140500212889152 DEBG dcompact_worker.cpp:240: HttpPost: 200 OK: url = http://nlb-7zny4kaa1poal01o64.cn-shenzhen.nlb.aliyuncs.com:8443, body = {"instanceId":"nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137","labourId":"","dbId":"a007a635-5c0a-4b4a-be96-b9c695cb016b","dbStarts":1724092920,"starts":1724141594,"executesMs":9778,"compactionJobId":38873,"attempt":0,"compactionInputRawBytes":127471132,"compactionInputZipBytes":54704109,"compactionOutputRawBytes":0,"compactionOutputZipBytes":41266664,"headers":{"Accept":"*/*","Connection":"close","Host":"aliyun-topling-saas.topling.cn:18443","RemoteIp":"120.24.192.169","X-Forwarded-For":"120.24.192.169","region":"cn-shenzhen","token":"e6474c481bd4415abc537135cc03626b","instance-token":"e6474c481bd4415abc537135cc03626b","provider":"aliyun","CloudMarketInstanceId":"si-59c0ae5c955845588903","MeteringAssit":"","Transfer-Encoding":"chunked","traceparent":"00-4c36b94bad76e4288ea60f99c05bfa90-0f7911a44c9463c5-00"}}, response = 2024/08/20-16:13:24.855384 140500212889152 INFO dcompact_worker.cpp:1456: finish /worker/dcompact-log/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/2024-08-20T02.42.00/.rocksdb/job-38873/att-00: olev 2, work 9.778 s, result 6.355 ms, install 0.525 ms, input{raw 121.566 MiB zip 52.170 MiB}