2024/08/20-03:47:29.917029 140500246459968 DEBG dcompact_worker.cpp:2211: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00: fork to child time = 0.048563 sec 2024/08/20-03:47:29.918432 140500246459968 DEBG dcompact_worker.cpp:1011: Beg SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00 2024/08/20-03:47:29.923672 140500246459968 DEBG dcompact_worker.cpp:1031: End SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00 2024/08/20-03:47:29.925141 140500246459968 TRAC dcompact_worker.cpp:1081: INFO_LOG_LEVEL: rpc = INFO_LEVEL, env_var = undefined 2024/08/20-03:47:29.925453 140500246459968 [WARN] [column_family.cc:386] multiple cf_paths/db_paths and level_compaction_dynamic_level_bytes can't be used together 2024/08/20-03:47:29.975071 140500246459968 [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-04219/att-00/MANIFEST-14629260 2024/08/20-03:47:29.990356 140500246459968 [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-04219/att-00/MANIFEST-14629260 succeeded,manifest_file_number is 14629260, next_file_number is 14633936, last_sequence is 189890055468, log_number is 0,prev_log_number is 0,max_column_family is 0,min_log_number_to_keep is 14633881 2024/08/20-03:47:29.990366 140500246459968 [version_set.cc:6197] Column family [default] (ID 0), log number is 0 2024/08/20-03:47:29.990441 140500246459968 [version_set.cc:5652] Creating manifest 14633936 2024/08/20-03:47:30.017130 140500246459968 DEBG dcompact_worker.cpp:1215: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00: bottommost_level: fake = 1, rpc = 0 2024/08/20-03:47:30.031710 140500246459968 [compaction_job.cc:2433] [default] [JOB 4219] Compacting 1@2 + 2@3 files to L3, score 0.99, subcompactions 1 : 1 2024/08/20-03:47:30.031725 140500246459968 [compaction_job.cc:2441] [default]: Compaction start summary: Base version 2203 Base level 2, inputs: [14633909(31MB)], [14633852(97MB) 14633932(67MB)] 2024/08/20-03:47:30.365343 140500246459968 [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 2024/08/20-03:47:30.365380 140500246459968 [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 2024/08/20-03:47:30.365404 140500246459968 [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 2024/08/20-03:47:30.365425 140500246459968 [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 2024/08/20-03:47:30.365440 140500246459968 [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 2024/08/20-03:47:31.059182 140500246459968 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633937.sst) /dev/shm/ToplingTemp/Topling-150256-KxWfOP 2024/08/20-03:47:31.652312 140500246459968 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633937.sst): first pass time = 0.59's, 226.311'MB/sec 2024/08/20-03:47:34.755375 140500246459968 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633937.sst): old prealloc_size = 147639500, real_size = 100492112 2024/08/20-03:47:34.755590 140500246459968 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633937.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 197741 prefix = 4 raw-key = 0.0024 GB zip-key = 0.0004 GB avg-key = 12.00 avg-zkey = 1.90 raw-val = 0.1295 GB zip-val = 0.1001 GB avg-val = 654.76 avg-zval = 506.05 2024/08/20-03:47:34.755859 140500246459968 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633937.sst: sumWaitingMem = 0.000 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0004 GB, waited 0.000 sec, Key+Value = 0.134 GB 2024/08/20-03:47:35.199358 140500246459968 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633937.sst): second pass time = 3.10's, 41.739'MB/sec, value only(96.5% of KV) wait indexing time = 0.00's, remap KeyValue time = 0.44's, 230.842'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 2005.957'MB/sec (index lex order gen) rebuild zvType time = 0.34's, 0.144'MB/sec write SST data time = 0.10's, 1021.603'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 1.351'MB, throughput = 25575.866'MB/sec zip my value time = 3.10's, unzip length = 0.129'GB zip my value throughput = 41.739'MB/sec zip pipeline throughput = 94.973'MB/sec entries = 197741 avg-key = 24.00 avg-zkey = 1.90 avg-val = 654.76 avg-zval = 506.05 usrkeys = 197741 avg-key = 16.00 avg-zkey = 1.90 avg-val = 661.76 avg-zval = 506.05 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 197741 bytes = 692112 } seq expand size = 1384187 multi value expand size = 0 cnt WriteAppend = 13 UnZipSize{ index = 0.0032 GB value = 0.1295 GB dict = 1.35 MB all = 0.1342 GB } __ZipSize{ index = 0.0004 GB value = 0.1001 GB dict = 1.35 MB all = 0.1025 GB } UnZip/Zip{ index = 8.4346 value = 1.2938 dict = 1.00 all = 1.3096 } Zip/UnZip{ index = 0.1186 value = 0.7729 dict = 1.00 all = 0.7636 } ---------------------------- total value len = 62.427606 GB avg = 0.180 KB (by entry num) total key len = 6.793503 GB avg = 0.020 KB total ukey len = 3.192671 GB avg = 0.008 KB total ukey num = 0.389531302 Billion total entry num = 0.346409310 Billion write speed all = 1.880293241 MB/sec (with seq num) write speed all = 1.805015501 MB/sec (without seq num) 2024/08/20-03:47:35.359822 140500246459968 [compaction_job.cc:1944] [default] [JOB 4219] Generated table #14633937: 197741 keys, 102488781 bytes, temperature: kWarm 2024/08/20-03:47:35.359908 140500246459968 EVENT_LOG_v1 {"time_micros": 1724096855359854, "cf_name": "default", "job": 4219, "event": "table_file_creation", "file_number": 14633937, "file_size": 102488781, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 189647000998, "largest_seqno": 189889825830, "table_properties": {"data_size": 100067392, "index_size": 375104, "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": 4745784, "raw_average_key_size": 24, "raw_value_size": 129472068, "raw_average_value_size": 654, "num_data_blocks": 1, "num_entries": 197741, "num_filter_entries": 0, "num_deletions": 0, "num_merge_operands": 0, "num_range_deletions": 0, "format_version": 0, "fixed_key_len": 24, "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": 1724096851, "oldest_key_time": 0, "file_creation_time": 1724096851, "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": 14633937, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-03:47:35.417735 140500246459968 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633938.sst) /dev/shm/ToplingTemp/Topling-150256-cmP7yR 2024/08/20-03:47:36.102399 140500246459968 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633938.sst): first pass time = 0.68's, 143.016'MB/sec 2024/08/20-03:47:37.433328 140500246459968 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633938.sst): old prealloc_size = 147639500, real_size = 73515344 2024/08/20-03:47:37.433474 140500246459968 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633938.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 144245 prefix = 4 raw-key = 0.0017 GB zip-key = 0.0003 GB avg-key = 12.00 avg-zkey = 1.88 raw-val = 0.0944 GB zip-val = 0.0732 GB avg-val = 654.78 avg-zval = 507.53 2024/08/20-03:47:37.433632 140500246459968 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633938.sst: sumWaitingMem = 0.000 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0003 GB, waited 0.000 sec, Key+Value = 0.098 GB 2024/08/20-03:47:37.677108 140500246459968 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00/14633938.sst): second pass time = 1.33's, 71.006'MB/sec, value only(96.5% of KV) wait indexing time = 0.00's, remap KeyValue time = 0.24's, 307.508'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 2293.862'MB/sec (index lex order gen) rebuild zvType time = 0.18's, 0.200'MB/sec write SST data time = 0.06's, 1177.862'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 0.993'MB, throughput = 23772.452'MB/sec zip my value time = 1.33's, unzip length = 0.094'GB zip my value throughput = 71.006'MB/sec zip pipeline throughput = 71.006'MB/sec entries = 144245 avg-key = 24.00 avg-zkey = 1.88 avg-val = 654.78 avg-zval = 507.53 usrkeys = 144245 avg-key = 16.00 avg-zkey = 1.88 avg-val = 661.78 avg-zval = 507.53 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 144245 bytes = 486848 } seq expand size = 1009715 multi value expand size = 0 cnt WriteAppend = 13 UnZipSize{ index = 0.0023 GB value = 0.0944 GB dict = 0.99 MB all = 0.0979 GB } __ZipSize{ index = 0.0003 GB value = 0.0732 GB dict = 0.99 MB all = 0.0750 GB } UnZip/Zip{ index = 8.5191 value = 1.2901 dict = 1.00 all = 1.3061 } Zip/UnZip{ index = 0.1174 value = 0.7751 dict = 1.00 all = 0.7656 } ---------------------------- total value len = 62.523065 GB avg = 0.180 KB (by entry num) total key len = 6.796965 GB avg = 0.020 KB total ukey len = 3.194979 GB avg = 0.008 KB total ukey num = 0.389675547 Billion total entry num = 0.346553555 Billion write speed all = 1.882853552 MB/sec (with seq num) write speed all = 1.807549535 MB/sec (without seq num) 2024/08/20-03:47:37.766558 140500246459968 [compaction_job.cc:1944] [default] [JOB 4219] Generated table #14633938: 144245 keys, 74961552 bytes, temperature: kWarm 2024/08/20-03:47:37.766643 140500246459968 EVENT_LOG_v1 {"time_micros": 1724096857766598, "cf_name": "default", "job": 4219, "event": "table_file_creation", "file_number": 14633938, "file_size": 74961552, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 189765250715, "largest_seqno": 189889825804, "table_properties": {"data_size": 73208192, "index_size": 270912, "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": 3461880, "raw_average_key_size": 24, "raw_value_size": 94448994, "raw_average_value_size": 654, "num_data_blocks": 1, "num_entries": 144245, "num_filter_entries": 0, "num_deletions": 0, "num_merge_operands": 0, "num_range_deletions": 0, "format_version": 0, "fixed_key_len": 24, "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": 1724096855, "oldest_key_time": 0, "file_creation_time": 1724096855, "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": 14633938, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-03:47:37.805151 140500246459968 [compaction_job.cc:699] job-04219: subcompact[0], size: 0.177450 G, files: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-04219/att-00 [14633937,14633938] 2024/08/20-03:47:37.842283 140500246459968 (Original Log Time 2024/08/20-03:47:30.031799) EVENT_LOG_v1 {"time_micros": 1724096850031738, "job": 4219, "event": "compaction_started", "compaction_reason": "FilesMarkedForCompaction", "files_L2": [14633909], "files_L3": [14633852, 14633932], "score": 0.993439, "input_data_size": 207064623, "oldest_snapshot_seqno": 189890055290} 2024/08/20-03:47:37.842287 140500246459968 (Original Log Time 2024/08/20-03:47:37.841860) [compaction_job.cc:2018] [default] [JOB 4219] Compacted 1@2 + 2@3 files to L3 => 177450333 bytes 2024/08/20-03:47:37.842289 140500246459968 (Original Log Time 2024/08/20-03:47:37.842214) [compaction_job.cc:1220] [default] compacted to: files[0 0 0 2 0 0 0] max score 0.01, MB/sec: 26.6 rd, 22.8 wr, level 3, files in(1, 2) out(2 +0 blob) MB in(32.0, 165.5 +0.0 blob) out(169.2 +0.0 blob), read-write-amplify(11.5) write-amplify(5.3) OK, records in: 383366, records dropped: 41380 output_compression: Snappy 2024/08/20-03:47:37.842298 140500246459968 (Original Log Time 2024/08/20-03:47:37.842261) EVENT_LOG_v1 {"time_micros": 1724096857842239, "cf": "default", "job": 4219, "event": "compaction_finished", "compaction_time_micros": 7773368, "compaction_time_cpu_micros": 1354816, "output_level": 3, "num_output_files": 2, "total_output_size": 177450333, "num_input_records": 383366, "num_output_records": 341986, "num_subcompactions": 1, "output_compression": "Snappy", "num_single_delete_mismatches": 0, "num_single_delete_fallthrough": 0, "file_write_nanos": 130034492, "file_range_sync_nanos": 0, "file_fsync_nanos": 1433, "file_prepare_write_nanos": 5667, "lsm_state": [0, 0, 0, 2, 0, 0, 0]} 2024/08/20-03:47:37.961099 140500246459968 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":1724096849,"executesMs":7919,"compactionJobId":4219,"attempt":0,"compactionInputRawBytes":260205671,"compactionInputZipBytes":207064623,"compactionOutputRawBytes":0,"compactionOutputZipBytes":177450333,"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":"00-8eea2fa1a8cb6354616b1e7edea13db2-b898719e8e344cea-00"}}, response = 2024/08/20-03:47:37.961231 140500246459968 INFO dcompact_worker.cpp:1456: finish /worker/dcompact-log/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/2024-08-20T02.42.00/.rocksdb/job-04219/att-00: olev 3, work 7.920 s, result 4.697 ms, install 0.459 ms, input{raw 248.151 MiB zip 197.472 MiB}