2024/08/20-15:29:19.906619 140500565382720 DEBG dcompact_worker.cpp:2211: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00: fork to child time = 0.017616 sec 2024/08/20-15:29:19.907715 140500565382720 DEBG dcompact_worker.cpp:1011: Beg SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00 2024/08/20-15:29:19.912608 140500565382720 DEBG dcompact_worker.cpp:1031: End SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00 2024/08/20-15:29:19.912943 140500565382720 TRAC dcompact_worker.cpp:1081: INFO_LOG_LEVEL: rpc = INFO_LEVEL, env_var = undefined 2024/08/20-15:29:19.913240 140500565382720 [WARN] [column_family.cc:386] multiple cf_paths/db_paths and level_compaction_dynamic_level_bytes can't be used together 2024/08/20-15:29:19.951359 140500565382720 [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-37109/att-00/MANIFEST-14629260 2024/08/20-15:29:19.990426 140500565382720 [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-37109/att-00/MANIFEST-14629260 succeeded,manifest_file_number is 14629260, next_file_number is 14672014, last_sequence is 190722716899, log_number is 0,prev_log_number is 0,max_column_family is 0,min_log_number_to_keep is 14671877 2024/08/20-15:29:19.990436 140500565382720 [version_set.cc:6197] Column family [default] (ID 0), log number is 0 2024/08/20-15:29:19.990514 140500565382720 [version_set.cc:5652] Creating manifest 14672014 2024/08/20-15:29:20.016162 140500565382720 DEBG dcompact_worker.cpp:1215: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00: bottommost_level: fake = 1, rpc = 0 2024/08/20-15:29:20.029861 140500565382720 [compaction_job.cc:2433] [default] [JOB 37109] Compacting 1@2 + 2@3 files to L3, score 1.00, subcompactions 1 : 1 2024/08/20-15:29:20.029877 140500565382720 [compaction_job.cc:2441] [default]: Compaction start summary: Base version 18961 Base level 2, inputs: [14671994(20MB)], [14671945(97MB) 14671946(27MB)] 2024/08/20-15:29:20.225952 140500565382720 [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 2024/08/20-15:29:20.225980 140500565382720 [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 2024/08/20-15:29:20.226004 140500565382720 [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 2024/08/20-15:29:20.226021 140500565382720 [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 2024/08/20-15:29:20.226035 140500565382720 [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 2024/08/20-15:29:20.920265 140500565382720 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672015.sst) /dev/shm/ToplingTemp/Topling-405996-5D0ygG 2024/08/20-15:29:21.524697 140500565382720 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672015.sst): first pass time = 0.60's, 222.081'MB/sec 2024/08/20-15:29:24.578458 140500565382720 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672015.sst): old prealloc_size = 147639500, real_size = 100362432 2024/08/20-15:29:24.578681 140500565382720 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672015.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 197672 prefix = 4 raw-key = 0.0024 GB zip-key = 0.0004 GB avg-key = 12.00 avg-zkey = 1.88 raw-val = 0.1295 GB zip-val = 0.0999 GB avg-val = 654.99 avg-zval = 505.59 2024/08/20-15:29:24.578978 140500565382720 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672015.sst: sumWaitingMem = 0.000 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0004 GB, waited 0.000 sec, Key+Value = 0.134 GB 2024/08/20-15:29:25.030384 140500565382720 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672015.sst): second pass time = 3.05's, 42.412'MB/sec, value only(96.5% of KV) wait indexing time = 0.00's, remap KeyValue time = 0.45's, 226.667'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 1855.960'MB/sec (index lex order gen) rebuild zvType time = 0.34's, 0.146'MB/sec write SST data time = 0.11's, 910.016'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 1.353'MB, throughput = 28378.250'MB/sec zip my value time = 3.05's, unzip length = 0.129'GB zip my value throughput = 42.412'MB/sec zip pipeline throughput = 99.079'MB/sec entries = 197672 avg-key = 24.00 avg-zkey = 1.88 avg-val = 654.99 avg-zval = 505.59 usrkeys = 197672 avg-key = 16.00 avg-zkey = 1.88 avg-val = 661.99 avg-zval = 505.59 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 197672 bytes = 766000 } seq expand size = 1383704 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 = 0.0999 GB dict = 1.35 MB all = 0.1024 GB } UnZip/Zip{ index = 8.4911 value = 1.2955 dict = 1.00 all = 1.3103 } Zip/UnZip{ index = 0.1178 value = 0.7719 dict = 1.00 all = 0.7632 } ---------------------------- total value len = 62.427607 GB avg = 0.180 KB (by entry num) total key len = 6.793502 GB avg = 0.020 KB total ukey len = 3.192670 GB avg = 0.008 KB total ukey num = 0.389531233 Billion total entry num = 0.346409241 Billion write speed all = 0.877062236 MB/sec (with seq num) write speed all = 0.841948963 MB/sec (without seq num) 2024/08/20-15:29:25.150281 140500565382720 [compaction_job.cc:1944] [default] [JOB 37109] Generated table #14672015: 197672 keys, 102435038 bytes, temperature: kWarm 2024/08/20-15:29:25.150365 140500565382720 EVENT_LOG_v1 {"time_micros": 1724138965150318, "cf_name": "default", "job": 37109, "event": "table_file_creation", "file_number": 14672015, "file_size": 102435038, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 189648517461, "largest_seqno": 190722691748, "table_properties": {"data_size": 99940336, "index_size": 372480, "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": 4744128, "raw_average_key_size": 24, "raw_value_size": 129473732, "raw_average_value_size": 654, "num_data_blocks": 1, "num_entries": 197672, "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": 1724138960, "oldest_key_time": 0, "file_creation_time": 1724138960, "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": 14672015, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-15:29:25.190288 140500565382720 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672016.sst) /dev/shm/ToplingTemp/Topling-405996-S4OptI 2024/08/20-15:29:25.518406 140500565382720 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672016.sst): first pass time = 0.33's, 131.997'MB/sec 2024/08/20-15:29:26.424070 140500565382720 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672016.sst): old prealloc_size = 147639500, real_size = 32563344 2024/08/20-15:29:26.424173 140500565382720 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672016.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 63803 prefix = 4 raw-key = 0.0008 GB zip-key = 0.0001 GB avg-key = 12.00 avg-zkey = 1.96 raw-val = 0.0418 GB zip-val = 0.0324 GB avg-val = 654.73 avg-zval = 508.16 2024/08/20-15:29:26.424275 140500565382720 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672016.sst: sumWaitingMem = 0.000 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0001 GB, waited 0.000 sec, Key+Value = 0.043 GB 2024/08/20-15:29:26.529860 140500565382720 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00/14672016.sst): second pass time = 0.91's, 46.159'MB/sec, value only(96.5% of KV) wait indexing time = 0.00's, remap KeyValue time = 0.11's, 314.039'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 1700.437'MB/sec (index lex order gen) rebuild zvType time = 0.08's, 0.201'MB/sec write SST data time = 0.03's, 1263.113'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 0.429'MB, throughput = 11470.450'MB/sec zip my value time = 0.91's, unzip length = 0.042'GB zip my value throughput = 46.159'MB/sec zip pipeline throughput = 68.408'MB/sec entries = 63803 avg-key = 24.00 avg-zkey = 1.96 avg-val = 654.73 avg-zval = 508.16 usrkeys = 63803 avg-key = 16.00 avg-zkey = 1.96 avg-val = 661.73 avg-zval = 508.16 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 63803 bytes = 239280 } seq expand size = 446621 multi value expand size = 0 cnt WriteAppend = 72 UnZipSize{ index = 0.0010 GB value = 0.0418 GB dict = 0.43 MB all = 0.0433 GB } __ZipSize{ index = 0.0001 GB value = 0.0324 GB dict = 0.43 MB all = 0.0332 GB } UnZip/Zip{ index = 8.1465 value = 1.2884 dict = 1.00 all = 1.3037 } Zip/UnZip{ index = 0.1228 value = 0.7761 dict = 1.00 all = 0.7671 } ---------------------------- total value len = 62.469828 GB avg = 0.180 KB (by entry num) total key len = 6.795033 GB avg = 0.020 KB total ukey len = 3.193691 GB avg = 0.008 KB total ukey num = 0.389595036 Billion total entry num = 0.346473044 Billion write speed all = 0.877599916 MB/sec (with seq num) write speed all = 0.842480842 MB/sec (without seq num) 2024/08/20-15:29:26.583316 140500565382720 [compaction_job.cc:1944] [default] [JOB 37109] Generated table #14672016: 63803 keys, 33217349 bytes, temperature: kWarm 2024/08/20-15:29:26.583382 140500565382720 EVENT_LOG_v1 {"time_micros": 1724138966583346, "cf_name": "default", "job": 37109, "event": "table_file_creation", "file_number": 14672016, "file_size": 33217349, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 190100264875, "largest_seqno": 190722691744, "table_properties": {"data_size": 32421888, "index_size": 125312, "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": 1531272, "raw_average_key_size": 24, "raw_value_size": 41773765, "raw_average_value_size": 654, "num_data_blocks": 1, "num_entries": 63803, "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": 1724138965, "oldest_key_time": 0, "file_creation_time": 1724138965, "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": 14672016, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-15:29:26.598977 140500565382720 [compaction_job.cc:699] job-37109: subcompact[0], size: 0.135652 G, files: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-37109/att-00 [14672015,14672016] 2024/08/20-15:29:26.629387 140500565382720 (Original Log Time 2024/08/20-15:29:20.029970) EVENT_LOG_v1 {"time_micros": 1724138960029895, "job": 37109, "event": "compaction_started", "compaction_reason": "FilesMarkedForCompaction", "files_L2": [14671994], "files_L3": [14671945, 14671946], "score": 0.99862, "input_data_size": 152156625, "oldest_snapshot_seqno": 190722715943} 2024/08/20-15:29:26.629392 140500565382720 (Original Log Time 2024/08/20-15:29:26.628890) [compaction_job.cc:2018] [default] [JOB 37109] Compacted 1@2 + 2@3 files to L3 => 135652387 bytes 2024/08/20-15:29:26.629394 140500565382720 (Original Log Time 2024/08/20-15:29:26.629309) [compaction_job.cc:1220] [default] compacted to: files[0 0 0 2 0 0 0] max score 0.01, MB/sec: 23.2 rd, 20.7 wr, level 3, files in(1, 2) out(2 +0 blob) MB in(20.0, 125.1 +0.0 blob) out(129.4 +0.0 blob), read-write-amplify(13.7) write-amplify(6.5) OK, records in: 283378, records dropped: 21903 output_compression: Snappy 2024/08/20-15:29:26.629404 140500565382720 (Original Log Time 2024/08/20-15:29:26.629364) EVENT_LOG_v1 {"time_micros": 1724138966629339, "cf": "default", "job": 37109, "event": "compaction_finished", "compaction_time_micros": 6569015, "compaction_time_cpu_micros": 1061132, "output_level": 3, "num_output_files": 2, "total_output_size": 135652387, "num_input_records": 283378, "num_output_records": 261475, "num_subcompactions": 1, "output_compression": "Snappy", "num_single_delete_mismatches": 0, "num_single_delete_fallthrough": 0, "file_write_nanos": 126404505, "file_range_sync_nanos": 0, "file_fsync_nanos": 1280, "file_prepare_write_nanos": 10606, "lsm_state": [0, 0, 0, 2, 0, 0, 0]} 2024/08/20-15:29:26.752659 140500565382720 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":1724138959,"executesMs":6715,"compactionJobId":37109,"attempt":0,"compactionInputRawBytes":192392204,"compactionInputZipBytes":152156625,"compactionOutputRawBytes":0,"compactionOutputZipBytes":135652387,"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":"00-1c5226f1b28af6cd5d20297633c3c945-7b843d73d6bcf5e3-00"}}, response = 2024/08/20-15:29:26.752802 140500565382720 INFO dcompact_worker.cpp:1456: finish /worker/dcompact-log/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/2024-08-20T02.42.00/.rocksdb/job-37109/att-00: olev 3, work 6.715 s, result 6.878 ms, install 0.547 ms, input{raw 183.480 MiB zip 145.108 MiB}