2024/08/20-09:57:40.679167 140500162532928 DEBG dcompact_worker.cpp:2211: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00: fork to child time = 0.039215 sec 2024/08/20-09:57:40.680690 140500162532928 DEBG dcompact_worker.cpp:1011: Beg SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00 2024/08/20-09:57:40.687784 140500162532928 DEBG dcompact_worker.cpp:1031: End SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00 2024/08/20-09:57:40.688271 140500162532928 TRAC dcompact_worker.cpp:1081: INFO_LOG_LEVEL: rpc = INFO_LEVEL, env_var = undefined 2024/08/20-09:57:40.688704 140500162532928 [WARN] [column_family.cc:386] multiple cf_paths/db_paths and level_compaction_dynamic_level_bytes can't be used together 2024/08/20-09:57:40.728777 140500162532928 [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-22957/att-00/MANIFEST-14629260 2024/08/20-09:57:40.780248 140500162532928 [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-22957/att-00/MANIFEST-14629260 succeeded,manifest_file_number is 14629260, next_file_number is 14655475, last_sequence is 190362995184, log_number is 0,prev_log_number is 0,max_column_family is 0,min_log_number_to_keep is 14655370 2024/08/20-09:57:40.780264 140500162532928 [version_set.cc:6197] Column family [default] (ID 0), log number is 0 2024/08/20-09:57:40.780349 140500162532928 [version_set.cc:5652] Creating manifest 14655475 2024/08/20-09:57:40.804239 140500162532928 DEBG dcompact_worker.cpp:1215: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00: bottommost_level: fake = 1, rpc = 0 2024/08/20-09:57:40.819306 140500162532928 [compaction_job.cc:2433] [default] [JOB 22957] Compacting 1@2 + 2@3 files to L3, score 1.01, subcompactions 1 : 1 2024/08/20-09:57:40.819325 140500162532928 [compaction_job.cc:2441] [default]: Compaction start summary: Base version 11766 Base level 2, inputs: [14655455(16MB)], [14654865(37MB) 14655262(1594KB)] 2024/08/20-09:57:40.830755 140500162532928 [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 2024/08/20-09:57:40.830831 140500162532928 [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 2024/08/20-09:57:40.830866 140500162532928 [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 2024/08/20-09:57:40.830880 140500162532928 [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 2024/08/20-09:57:40.830894 140500162532928 [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 2024/08/20-09:57:41.233948 140500162532928 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655476.sst) /dev/shm/ToplingTemp/Topling-296016-VX982x 2024/08/20-09:57:42.490499 140500162532928 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655476.sst): first pass time = 1.26's, 106.820'MB/sec 2024/08/20-09:57:45.348488 140500162532928 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655476.sst): old prealloc_size = 63444826, real_size = 34823936 2024/08/20-09:57:45.349121 140500162532928 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655476.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 929691 prefix = 4 raw-key = 0.0149 GB zip-key = 0.0018 GB avg-key = 16.00 avg-zkey = 1.93 raw-val = 0.1082 GB zip-val = 0.0328 GB avg-val = 116.37 avg-zval = 35.28 2024/08/20-09:57:45.349951 140500162532928 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655476.sst: sumWaitingMem = 0.002 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0023 GB, waited 0.000 sec, Key+Value = 0.134 GB 2024/08/20-09:57:46.472163 140500162532928 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655476.sst): second pass time = 2.84's, 38.028'MB/sec, value only(80.6% of KV) wait indexing time = 0.00's, remap KeyValue time = 1.12's, 34.646'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 2929.253'MB/sec (index lex order gen) rebuild zvType time = 0.91's, 0.256'MB/sec write SST data time = 0.21's, 181.418'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 1.079'MB, throughput = 29928.908'MB/sec zip my value time = 2.84's, unzip length = 0.108'GB zip my value throughput = 38.028'MB/sec zip pipeline throughput = 103.477'MB/sec entries = 929691 avg-key = 28.00 avg-zkey = 1.93 avg-val = 116.37 avg-zval = 35.28 usrkeys = 929691 avg-key = 20.00 avg-zkey = 1.93 avg-val = 123.37 avg-zval = 35.28 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 929691 bytes = 3253936 } seq expand size = 6507837 multi value expand size = 0 cnt WriteAppend = 16 UnZipSize{ index = 0.0186 GB value = 0.1082 GB dict = 1.08 MB all = 0.1342 GB } __ZipSize{ index = 0.0018 GB value = 0.0328 GB dict = 1.08 MB all = 0.0389 GB } UnZip/Zip{ index = 10.3756 value = 3.2984 dict = 1.00 all = 3.4476 } Zip/UnZip{ index = 0.0964 value = 0.3032 dict = 1.00 all = 0.2901 } ---------------------------- total value len = 62.411444 GB avg = 0.180 KB (by entry num) total key len = 6.814789 GB avg = 0.020 KB total ukey len = 3.208101 GB avg = 0.008 KB total ukey num = 0.390263252 Billion total entry num = 0.347141260 Billion write speed all = 1.172823663 MB/sec (with seq num) write speed all = 1.125773813 MB/sec (without seq num) 2024/08/20-09:57:46.520866 140500162532928 [compaction_job.cc:1944] [default] [JOB 22957] Generated table #14655476: 929691 keys, 38930697 bytes, temperature: kWarm 2024/08/20-09:57:46.520981 140500162532928 EVENT_LOG_v1 {"time_micros": 1724119066520910, "cf_name": "default", "job": 22957, "event": "table_file_creation", "file_number": 14655476, "file_size": 38930697, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 190178009524, "largest_seqno": 190362692514, "table_properties": {"data_size": 32799280, "index_size": 1792064, "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": 26031348, "raw_average_key_size": 28, "raw_value_size": 108186406, "raw_average_value_size": 116, "num_data_blocks": 1, "num_entries": 929691, "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": 1724119061, "oldest_key_time": 0, "file_creation_time": 1724119061, "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": 14655476, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-09:57:46.568979 140500162532928 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655477.sst) /dev/shm/ToplingTemp/Topling-296016-4znFgw 2024/08/20-09:57:46.787799 140500162532928 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655477.sst): first pass time = 0.22's, 215.370'MB/sec 2024/08/20-09:57:47.327081 140500162532928 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655477.sst): old prealloc_size = 63444826, real_size = 13833216 2024/08/20-09:57:47.327336 140500162532928 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655477.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 327021 prefix = 4 raw-key = 0.0052 GB zip-key = 0.0006 GB avg-key = 16.00 avg-zkey = 1.91 raw-val = 0.0380 GB zip-val = 0.0131 GB avg-val = 116.09 avg-zval = 40.14 2024/08/20-09:57:47.327650 140500162532928 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655477.sst: sumWaitingMem = 0.001 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0008 GB, waited 0.000 sec, Key+Value = 0.047 GB 2024/08/20-09:57:47.582107 140500162532928 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00/14655477.sst): second pass time = 0.54's, 70.501'MB/sec, value only(80.6% of KV) wait indexing time = 0.00's, remap KeyValue time = 0.26's, 59.789'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 2713.879'MB/sec (index lex order gen) rebuild zvType time = 0.21's, 0.393'MB/sec write SST data time = 0.05's, 327.100'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 0.389'MB, throughput = 12119.315'MB/sec zip my value time = 0.54's, unzip length = 0.038'GB zip my value throughput = 70.501'MB/sec zip pipeline throughput = 70.501'MB/sec entries = 327021 avg-key = 28.00 avg-zkey = 1.91 avg-val = 116.09 avg-zval = 40.14 usrkeys = 327021 avg-key = 20.00 avg-zkey = 1.91 avg-val = 123.09 avg-zval = 40.14 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 327021 bytes = 1103712 } seq expand size = 2289147 multi value expand size = 0 cnt WriteAppend = 12 UnZipSize{ index = 0.0065 GB value = 0.0380 GB dict = 0.39 MB all = 0.0471 GB } __ZipSize{ index = 0.0006 GB value = 0.0131 GB dict = 0.39 MB all = 0.0152 GB } UnZip/Zip{ index = 10.4965 value = 2.8917 dict = 1.00 all = 3.0904 } Zip/UnZip{ index = 0.0953 value = 0.3458 dict = 1.00 all = 0.3236 } ---------------------------- total value len = 62.451696 GB avg = 0.180 KB (by entry num) total key len = 6.823946 GB avg = 0.020 KB total ukey len = 3.214642 GB avg = 0.008 KB total ukey num = 0.390590273 Billion total entry num = 0.347468281 Billion write speed all = 1.173638670 MB/sec (with seq num) write speed all = 1.126545383 MB/sec (without seq num) 2024/08/20-09:57:47.610932 140500162532928 [compaction_job.cc:1944] [default] [JOB 22957] Generated table #14655477: 327021 keys, 15247030 bytes, temperature: kWarm 2024/08/20-09:57:47.610999 140500162532928 EVENT_LOG_v1 {"time_micros": 1724119067610964, "cf_name": "default", "job": 22957, "event": "table_file_creation", "file_number": 14655477, "file_size": 15247030, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 190261474341, "largest_seqno": 190362692753, "table_properties": {"data_size": 13128176, "index_size": 623104, "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": 9156588, "raw_average_key_size": 28, "raw_value_size": 37962922, "raw_average_value_size": 116, "num_data_blocks": 1, "num_entries": 327021, "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": 1724119066, "oldest_key_time": 0, "file_creation_time": 1724119066, "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": 14655477, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-09:57:47.625432 140500162532928 [compaction_job.cc:699] job-22957: subcompact[0], size: 0.054178 G, files: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-22957/att-00 [14655476,14655477] 2024/08/20-09:57:47.643821 140500162532928 (Original Log Time 2024/08/20-09:57:40.819422) EVENT_LOG_v1 {"time_micros": 1724119060819342, "job": 22957, "event": "compaction_started", "compaction_reason": "LevelMaxLevelSize", "files_L2": [14655455], "files_L3": [14654865, 14655262], "score": 1.01264, "input_data_size": 57677115, "oldest_snapshot_seqno": 190362994484} 2024/08/20-09:57:47.643824 140500162532928 (Original Log Time 2024/08/20-09:57:47.643391) [compaction_job.cc:2018] [default] [JOB 22957] Compacted 1@2 + 2@3 files to L3 => 54177727 bytes 2024/08/20-09:57:47.643826 140500162532928 (Original Log Time 2024/08/20-09:57:47.643751) [compaction_job.cc:1220] [default] compacted to: files[0 0 0 2 0 0 0] max score 0.00, MB/sec: 8.5 rd, 8.0 wr, level 3, files in(1, 2) out(2 +0 blob) MB in(16.1, 38.9 +0.0 blob) out(51.7 +0.0 blob), read-write-amplify(6.6) write-amplify(3.2) OK, records in: 1328131, records dropped: 71419 output_compression: Snappy 2024/08/20-09:57:47.643836 140500162532928 (Original Log Time 2024/08/20-09:57:47.643795) EVENT_LOG_v1 {"time_micros": 1724119067643776, "cf": "default", "job": 22957, "event": "compaction_finished", "compaction_time_micros": 6806019, "compaction_time_cpu_micros": 2442049, "output_level": 3, "num_output_files": 2, "total_output_size": 54177727, "num_input_records": 1328131, "num_output_records": 1256712, "num_subcompactions": 1, "output_compression": "Snappy", "num_single_delete_mismatches": 0, "num_single_delete_fallthrough": 0, "file_write_nanos": 44319299, "file_range_sync_nanos": 0, "file_fsync_nanos": 1252, "file_prepare_write_nanos": 5654, "lsm_state": [0, 0, 0, 2, 0, 0, 0]} 2024/08/20-09:57:47.783033 140500162532928 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":1724119060,"executesMs":6957,"compactionJobId":22957,"attempt":0,"compactionInputRawBytes":191478762,"compactionInputZipBytes":57677115,"compactionOutputRawBytes":0,"compactionOutputZipBytes":54177727,"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-b6682aec8e4e6da9f797ff2fcad3fac1-5abbc645f604d340-00"}}, response = 2024/08/20-09:57:47.783133 140500162532928 INFO dcompact_worker.cpp:1456: finish /worker/dcompact-log/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/2024-08-20T02.42.00/.rocksdb/job-22957/att-00: olev 3, work 6.958 s, result 6.143 ms, install 0.468 ms, input{raw 182.608 MiB zip 55.005 MiB}