2024/08/20-05:19:03.179918 140500103784000 DEBG dcompact_worker.cpp:2211: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00: fork to child time = 0.038150 sec 2024/08/20-05:19:03.181175 140500103784000 DEBG dcompact_worker.cpp:1011: Beg SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00 2024/08/20-05:19:03.187500 140500103784000 DEBG dcompact_worker.cpp:1031: End SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00 2024/08/20-05:19:03.187982 140500103784000 TRAC dcompact_worker.cpp:1081: INFO_LOG_LEVEL: rpc = INFO_LEVEL, env_var = undefined 2024/08/20-05:19:03.188354 140500103784000 [WARN] [column_family.cc:386] multiple cf_paths/db_paths and level_compaction_dynamic_level_bytes can't be used together 2024/08/20-05:19:03.247407 140500103784000 [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-09215/att-00/MANIFEST-14629260 2024/08/20-05:19:03.270253 140500103784000 [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-09215/att-00/MANIFEST-14629260 succeeded,manifest_file_number is 14629260, next_file_number is 14639700, last_sequence is 190017938177, log_number is 0,prev_log_number is 0,max_column_family is 0,min_log_number_to_keep is 14639641 2024/08/20-05:19:03.270268 140500103784000 [version_set.cc:6197] Column family [default] (ID 0), log number is 0 2024/08/20-05:19:03.270399 140500103784000 [version_set.cc:5652] Creating manifest 14639700 2024/08/20-05:19:03.308765 140500103784000 DEBG dcompact_worker.cpp:1215: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00: bottommost_level: fake = 1, rpc = 0 2024/08/20-05:19:03.328514 140500103784000 [compaction_job.cc:2433] [default] [JOB 9215] Compacting 1@1 + 2@2 files to L2, score 0.83, subcompactions 1 : 1 2024/08/20-05:19:03.328534 140500103784000 [compaction_job.cc:2441] [default]: Compaction start summary: Base version 4775 Base level 1, inputs: [14639688(27MB)], [14639609(20MB) 14639610(9789KB)] 2024/08/20-05:19:03.592663 140500103784000 [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 2024/08/20-05:19:03.592709 140500103784000 [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 2024/08/20-05:19:03.592733 140500103784000 [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 2024/08/20-05:19:03.592749 140500103784000 [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 2024/08/20-05:19:03.592762 140500103784000 [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 2024/08/20-05:19:03.806351 140500103784000 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639701.sst) /dev/shm/ToplingTemp/Topling-189782-emb2QD 2024/08/20-05:19:04.424848 140500103784000 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639701.sst): first pass time = 0.62's, 108.515'MB/sec 2024/08/20-05:19:09.350218 140500103784000 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639701.sst): old prealloc_size = 66798004, real_size = 19781776 2024/08/20-05:19:09.350633 140500103784000 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639701.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 466171 prefix = 4 raw-key = 0.0075 GB zip-key = 0.0009 GB avg-key = 16.00 avg-zkey = 1.89 raw-val = 0.0541 GB zip-val = 0.0188 GB avg-val = 115.96 avg-zval = 40.29 2024/08/20-05:19:09.351125 140500103784000 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639701.sst: sumWaitingMem = 0.001 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0011 GB, waited 0.000 sec, Key+Value = 0.067 GB 2024/08/20-05:19:10.340257 140500103784000 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639701.sst): second pass time = 4.91's, 11.010'MB/sec, value only(80.5% of KV) wait indexing time = 0.01's, remap KeyValue time = 0.99's, 21.888'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 2408.487'MB/sec (index lex order gen) rebuild zvType time = 0.71's, 0.163'MB/sec write SST data time = 0.28's, 78.536'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 0.543'MB, throughput = 13248.829'MB/sec zip my value time = 4.91's, unzip length = 0.054'GB zip my value throughput = 11.010'MB/sec zip pipeline throughput = 135.668'MB/sec entries = 466171 avg-key = 28.00 avg-zkey = 1.89 avg-val = 115.96 avg-zval = 40.29 usrkeys = 466171 avg-key = 20.00 avg-zkey = 1.89 avg-val = 122.96 avg-zval = 40.29 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 466171 bytes = 1456800 } seq expand size = 3263197 multi value expand size = 0 cnt WriteAppend = 13 UnZipSize{ index = 0.0093 GB value = 0.0541 GB dict = 0.54 MB all = 0.0671 GB } __ZipSize{ index = 0.0009 GB value = 0.0188 GB dict = 0.54 MB all = 0.0217 GB } UnZip/Zip{ index = 10.5740 value = 2.8779 dict = 1.00 all = 3.0968 } Zip/UnZip{ index = 0.0946 value = 0.3475 dict = 1.00 all = 0.3229 } ---------------------------- total value len = 62.354069 GB avg = 0.180 KB (by entry num) total key len = 6.801810 GB avg = 0.020 KB total ukey len = 3.198831 GB avg = 0.008 KB total ukey num = 0.389799732 Billion total entry num = 0.346677740 Billion write speed all = 1.634537671 MB/sec (with seq num) write speed all = 1.568986302 MB/sec (without seq num) 2024/08/20-05:19:10.373377 140500103784000 [compaction_job.cc:1944] [default] [JOB 9215] Generated table #14639701: 466171 keys, 21670366 bytes, temperature: kWarm 2024/08/20-05:19:10.373479 140500103784000 EVENT_LOG_v1 {"time_micros": 1724102350373420, "cf_name": "default", "job": 9215, "event": "table_file_creation", "file_number": 14639701, "file_size": 21670366, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 189991831690, "largest_seqno": 190017785576, "table_properties": {"data_size": 18783296, "index_size": 881728, "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": 13052788, "raw_average_key_size": 28, "raw_value_size": 54056106, "raw_average_value_size": 115, "num_data_blocks": 1, "num_entries": 466171, "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": 1724102343, "oldest_key_time": 0, "file_creation_time": 1724102343, "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": 14639701, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-05:19:10.429167 140500103784000 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639702.sst) /dev/shm/ToplingTemp/Topling-189782-zVfYXC 2024/08/20-05:19:10.956434 140500103784000 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639702.sst): first pass time = 0.53's, 111.597'MB/sec 2024/08/20-05:19:13.541313 140500103784000 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639702.sst): old prealloc_size = 66798004, real_size = 17439024 2024/08/20-05:19:13.541643 140500103784000 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639702.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 408418 prefix = 4 raw-key = 0.0065 GB zip-key = 0.0008 GB avg-key = 16.00 avg-zkey = 1.92 raw-val = 0.0474 GB zip-val = 0.0166 GB avg-val = 116.06 avg-zval = 40.53 2024/08/20-05:19:13.542048 140500103784000 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639702.sst: sumWaitingMem = 0.001 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0010 GB, waited 0.000 sec, Key+Value = 0.059 GB 2024/08/20-05:19:14.075282 140500103784000 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00/14639702.sst): second pass time = 2.58's, 18.351'MB/sec, value only(80.6% of KV) wait indexing time = 0.00's, remap KeyValue time = 0.53's, 35.867'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 2578.308'MB/sec (index lex order gen) rebuild zvType time = 0.41's, 0.248'MB/sec write SST data time = 0.12's, 156.421'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 0.482'MB, throughput = 13308.041'MB/sec zip my value time = 2.58's, unzip length = 0.047'GB zip my value throughput = 18.351'MB/sec zip pipeline throughput = 150.746'MB/sec entries = 408418 avg-key = 28.00 avg-zkey = 1.92 avg-val = 116.06 avg-zval = 40.53 usrkeys = 408418 avg-key = 20.00 avg-zkey = 1.92 avg-val = 123.06 avg-zval = 40.53 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 408418 bytes = 1327376 } seq expand size = 2858926 multi value expand size = 0 cnt WriteAppend = 13 UnZipSize{ index = 0.0082 GB value = 0.0474 GB dict = 0.48 MB all = 0.0588 GB } __ZipSize{ index = 0.0008 GB value = 0.0166 GB dict = 0.48 MB all = 0.0192 GB } UnZip/Zip{ index = 10.4316 value = 2.8634 dict = 1.00 all = 3.0721 } Zip/UnZip{ index = 0.0959 value = 0.3492 dict = 1.00 all = 0.3255 } ---------------------------- total value len = 62.404328 GB avg = 0.180 KB (by entry num) total key len = 6.813246 GB avg = 0.020 KB total ukey len = 3.206999 GB avg = 0.008 KB total ukey num = 0.390208150 Billion total entry num = 0.347086158 Billion write speed all = 1.635851447 MB/sec (with seq num) write speed all = 1.570228645 MB/sec (without seq num) 2024/08/20-05:19:14.103553 140500103784000 [compaction_job.cc:1944] [default] [JOB 9215] Generated table #14639702: 408418 keys, 19151612 bytes, temperature: kWarm 2024/08/20-05:19:14.103633 140500103784000 EVENT_LOG_v1 {"time_micros": 1724102354103591, "cf_name": "default", "job": 9215, "event": "table_file_creation", "file_number": 14639702, "file_size": 19151612, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 189981384289, "largest_seqno": 190017785487, "table_properties": {"data_size": 16553696, "index_size": 783040, "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": 11435704, "raw_average_key_size": 28, "raw_value_size": 47400016, "raw_average_value_size": 116, "num_data_blocks": 1, "num_entries": 408418, "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": 1724102350, "oldest_key_time": 0, "file_creation_time": 1724102350, "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": 14639702, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-05:19:14.123363 140500103784000 [compaction_job.cc:699] job-09215: subcompact[0], size: 0.040822 G, files: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-09215/att-00 [14639701,14639702] 2024/08/20-05:19:14.141270 140500103784000 (Original Log Time 2024/08/20-05:19:03.328625) EVENT_LOG_v1 {"time_micros": 1724102343328556, "job": 9215, "event": "compaction_started", "compaction_reason": "FilesMarkedForCompaction", "files_L1": [14639688], "files_L2": [14639609, 14639610], "score": 0.825627, "input_data_size": 60725459, "oldest_snapshot_seqno": 190017938029} 2024/08/20-05:19:14.141274 140500103784000 (Original Log Time 2024/08/20-05:19:14.140799) [compaction_job.cc:2018] [default] [JOB 9215] Compacted 1@1 + 2@2 files to L2 => 40821978 bytes 2024/08/20-05:19:14.141277 140500103784000 (Original Log Time 2024/08/20-05:19:14.141188) [compaction_job.cc:1220] [default] compacted to: files[0 0 2 0 0 0 0] max score 0.02, MB/sec: 5.6 rd, 3.8 wr, level 2, files in(1, 2) out(2 +0 blob) MB in(27.6, 30.3 +0.0 blob) out(38.9 +0.0 blob), read-write-amplify(3.5) write-amplify(1.4) OK, records in: 880834, records dropped: 6245 output_compression: Snappy 2024/08/20-05:19:14.141288 140500103784000 (Original Log Time 2024/08/20-05:19:14.141243) EVENT_LOG_v1 {"time_micros": 1724102354141219, "cf": "default", "job": 9215, "event": "compaction_finished", "compaction_time_micros": 10794751, "compaction_time_cpu_micros": 1905290, "output_level": 2, "num_output_files": 2, "total_output_size": 40821978, "num_input_records": 880834, "num_output_records": 874589, "num_subcompactions": 1, "output_compression": "Snappy", "num_single_delete_mismatches": 0, "num_single_delete_fallthrough": 0, "file_write_nanos": 90854177, "file_range_sync_nanos": 0, "file_fsync_nanos": 2159, "file_prepare_write_nanos": 5138763, "lsm_state": [0, 0, 2, 0, 0, 0, 0]} 2024/08/20-05:19:14.283697 140500103784000 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":1724102343,"executesMs":10954,"compactionJobId":9215,"attempt":0,"compactionInputRawBytes":126831404,"compactionInputZipBytes":60725459,"compactionOutputRawBytes":0,"compactionOutputZipBytes":40821978,"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":"00-74fa8b688a856fa9bc2eaf889ad393d8-034914894b86dd39-00"}}, response = 2024/08/20-05:19:14.283787 140500103784000 INFO dcompact_worker.cpp:1456: finish /worker/dcompact-log/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/2024-08-20T02.42.00/.rocksdb/job-09215/att-00: olev 2, work 10.954 s, result 6.184 ms, install 0.517 ms, input{raw 120.956 MiB zip 57.912 MiB}