2024/08/20-01:32:17.989002 140500179318336 DEBG dcompact_worker.cpp:2211: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00: fork to child time = 0.014012 sec 2024/08/20-01:32:17.989982 140500179318336 DEBG dcompact_worker.cpp:1011: Beg SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00 2024/08/20-01:32:17.994507 140500179318336 DEBG dcompact_worker.cpp:1031: End SerDeRead: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00 2024/08/20-01:32:17.996434 140500179318336 TRAC dcompact_worker.cpp:1081: INFO_LOG_LEVEL: rpc = INFO_LEVEL, env_var = undefined 2024/08/20-01:32:17.996753 140500179318336 [WARN] [column_family.cc:386] multiple cf_paths/db_paths and level_compaction_dynamic_level_bytes can't be used together 2024/08/20-01:32:18.054381 140500179318336 [version_set.cc:6139] Recovering from manifest file: /worker/dcompact-log/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/2024-08-19T23.41.30/.rocksdb/job-05098/att-00/MANIFEST-14619535 2024/08/20-01:32:18.108672 140500179318336 [version_set.cc:6182] Recovered from manifest file:/worker/dcompact-log/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/2024-08-19T23.41.30/.rocksdb/job-05098/att-00/MANIFEST-14619535 succeeded,manifest_file_number is 14619535, next_file_number is 14625610, last_sequence is 189712570333, log_number is 0,prev_log_number is 0,max_column_family is 0,min_log_number_to_keep is 14625481 2024/08/20-01:32:18.108684 140500179318336 [version_set.cc:6197] Column family [default] (ID 0), log number is 0 2024/08/20-01:32:18.108754 140500179318336 [version_set.cc:5652] Creating manifest 14625610 2024/08/20-01:32:18.132581 140500179318336 DEBG dcompact_worker.cpp:1215: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00: bottommost_level: fake = 1, rpc = 0 2024/08/20-01:32:18.146481 140500179318336 [compaction_job.cc:2433] [default] [JOB 5098] Compacting 1@2 + 2@3 files to L3, score 1.09, subcompactions 1 : 1 2024/08/20-01:32:18.146497 140500179318336 [compaction_job.cc:2441] [default]: Compaction start summary: Base version 2536 Base level 2, inputs: [14625517(20MB)], [14625174(20MB) 14624182(20MB)] 2024/08/20-01:32:18.151837 140500179318336 [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 2024/08/20-01:32:18.151879 140500179318336 [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 2024/08/20-01:32:18.151908 140500179318336 [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 2024/08/20-01:32:18.151918 140500179318336 [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 2024/08/20-01:32:18.151938 140500179318336 [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 2024/08/20-01:32:18.464414 140500179318336 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625611.sst) /dev/shm/ToplingTemp/Topling-96566-9UenK3 2024/08/20-01:32:19.122906 140500179318336 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625611.sst): first pass time = 0.66's, 203.841'MB/sec 2024/08/20-01:32:21.038017 140500179318336 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625611.sst): old prealloc_size = 70817296, real_size = 37949520 2024/08/20-01:32:21.038719 140500179318336 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625611.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 932508 prefix = 4 raw-key = 0.0149 GB zip-key = 0.0018 GB avg-key = 16.00 avg-zkey = 1.90 raw-val = 0.1081 GB zip-val = 0.0359 GB avg-val = 115.93 avg-zval = 38.54 2024/08/20-01:32:21.039568 140500179318336 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625611.sst: sumWaitingMem = 0.002 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0023 GB, waited 0.000 sec, Key+Value = 0.134 GB 2024/08/20-01:32:22.209184 140500179318336 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625611.sst): second pass time = 1.91's, 56.504'MB/sec, value only(80.5% of KV) wait indexing time = 0.00's, remap KeyValue time = 1.17's, 35.818'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 2635.761'MB/sec (index lex order gen) rebuild zvType time = 1.01's, 0.232'MB/sec write SST data time = 0.16's, 254.317'MB/sec dict compress time = 4356233619.02's, 0.000'MB/sec z-dict build time = 0.00's, sample length = 1.078'MB, throughput = 31097.201'MB/sec zip my value time = 1.91's, unzip length = 0.108'GB zip my value throughput = 56.504'MB/sec zip pipeline throughput = 56.504'MB/sec entries = 932508 avg-key = 28.00 avg-zkey = 1.90 avg-val = 115.93 avg-zval = 38.54 usrkeys = 932508 avg-key = 20.00 avg-zkey = 1.90 avg-val = 122.93 avg-zval = 38.54 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 932508 bytes = 3147232 } seq expand size = 6527556 multi value expand size = 0 cnt WriteAppend = 14 UnZipSize{ index = 0.0187 GB value = 0.1081 GB dict = 1.08 MB all = 0.1342 GB } __ZipSize{ index = 0.0018 GB value = 0.0359 GB dict = 1.08 MB all = 0.0420 GB } UnZip/Zip{ index = 10.5122 value = 3.0078 dict = 1.00 all = 3.1994 } Zip/UnZip{ index = 0.0951 value = 0.3325 dict = 1.00 all = 0.3126 } ---------------------------- total value len = 62.411385 GB avg = 0.180 KB (by entry num) total key len = 6.814868 GB avg = 0.020 KB total ukey len = 3.208158 GB avg = 0.008 KB total ukey num = 0.390266069 Billion total entry num = 0.347144077 Billion write speed all = 2.411979954 MB/sec (with seq num) write speed all = 2.315218448 MB/sec (without seq num) 2024/08/20-01:32:22.260047 140500179318336 [compaction_job.cc:1944] [default] [JOB 5098] Generated table #14625611: 932508 keys, 41950687 bytes, temperature: kWarm 2024/08/20-01:32:22.260131 140500179318336 EVENT_LOG_v1 {"time_micros": 1724088742260084, "cf_name": "default", "job": 5098, "event": "table_file_creation", "file_number": 14625611, "file_size": 41950687, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 189640133951, "largest_seqno": 189710499708, "table_properties": {"data_size": 35942080, "index_size": 1774144, "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": 26110224, "raw_average_key_size": 28, "raw_value_size": 108107640, "raw_average_value_size": 115, "num_data_blocks": 1, "num_entries": 932508, "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": 1724088738, "oldest_key_time": 0, "file_creation_time": 1724088738, "slow_compression_estimated_data_size": 0, "fast_compression_estimated_data_size": 0, "db_id": "a007a635-5c0a-4b4a-be96-b9c695cb016b", "db_session_id": "9474K4QZ2QA6TIYF9LEW", "orig_file_number": 14625611, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-01:32:22.298288 140500179318336 [top_zip_table_builder.cc:934] ToplingZipTableBuilder(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625612.sst) /dev/shm/ToplingTemp/Topling-96566-zACz51 2024/08/20-01:32:22.554216 140500179318336 [top_zip_table_builder.cc:1344] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625612.sst): first pass time = 0.26's, 262.267'MB/sec 2024/08/20-01:32:23.715781 140500179318336 [top_zip_table_builder.cc:2764] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625612.sst): old prealloc_size = 70817296, real_size = 19229584 2024/08/20-01:32:23.716140 140500179318336 [top_zip_table_builder.cc:1765] BuildReorderMap(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625612.sst): index type = NestLoudsTrieDAWG_Mixed_XL_256_32_FL, store type = DictZipBlobStore usrkeys = 466012 prefix = 4 raw-key = 0.0075 GB zip-key = 0.0009 GB avg-key = 16.00 avg-zkey = 1.90 raw-val = 0.0541 GB zip-val = 0.0182 GB avg-val = 116.01 avg-zval = 39.11 2024/08/20-01:32:23.716588 140500179318336 [top_zip_table_builder.cc:1295] /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625612.sst: sumWaitingMem = 0.001 GB, sumWorkingMem = 0.020 GB, reorder workingMem = 0.0011 GB, waited 0.000 sec, Key+Value = 0.067 GB 2024/08/20-01:32:24.111587 140500179318336 [top_zip_table_builder.cc:3092] ToplingZipTableBuilder::Finish(/storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00/14625612.sst): second pass time = 1.16's, 46.578'MB/sec, value only(80.6% of KV) wait indexing time = 0.00's, remap KeyValue time = 0.40's, 53.645'MB/sec (all stages of remap) Get OrderMap time = 0.00's, 2642.847'MB/sec (index lex order gen) rebuild zvType time = 0.32's, 0.359'MB/sec write SST data time = 0.07's, 300.202'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 = 13385.498'MB/sec zip my value time = 1.16's, unzip length = 0.054'GB zip my value throughput = 46.578'MB/sec zip pipeline throughput = 92.521'MB/sec entries = 466012 avg-key = 28.00 avg-zkey = 1.90 avg-val = 116.01 avg-zval = 39.11 usrkeys = 466012 avg-key = 20.00 avg-zkey = 1.90 avg-val = 123.01 avg-zval = 39.11 TagRS{ kinds = RS_Key0_Tag1 bytes = 0 } TagArray{ size = 466012 bytes = 1572800 } seq expand size = 3262084 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 = 0.0182 GB dict = 0.54 MB all = 0.0212 GB } UnZip/Zip{ index = 10.5071 value = 2.9662 dict = 1.00 all = 3.1606 } Zip/UnZip{ index = 0.0952 value = 0.3371 dict = 1.00 all = 0.3164 } ---------------------------- total value len = 62.468708 GB avg = 0.180 KB (by entry num) total key len = 6.827916 GB avg = 0.020 KB total ukey len = 3.217478 GB avg = 0.008 KB total ukey num = 0.390732081 Billion total entry num = 0.347610089 Billion write speed all = 2.414271802 MB/sec (with seq num) write speed all = 2.317386824 MB/sec (without seq num) 2024/08/20-01:32:24.142682 140500179318336 [compaction_job.cc:1944] [default] [JOB 5098] Generated table #14625612: 466012 keys, 21232902 bytes, temperature: kWarm 2024/08/20-01:32:24.142738 140500179318336 EVENT_LOG_v1 {"time_micros": 1724088744142708, "cf_name": "default", "job": 5098, "event": "table_file_creation", "file_number": 14625612, "file_size": 21232902, "file_checksum": "", "file_checksum_func_name": "Unknown", "smallest_seqno": 189640133772, "largest_seqno": 189710498468, "table_properties": {"data_size": 18225856, "index_size": 887040, "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": 13048336, "raw_average_key_size": 28, "raw_value_size": 54060856, "raw_average_value_size": 116, "num_data_blocks": 1, "num_entries": 466012, "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": 1724088742, "oldest_key_time": 0, "file_creation_time": 1724088742, "slow_compression_estimated_data_size": 0, "fast_compression_estimated_data_size": 0, "db_id": "a007a635-5c0a-4b4a-be96-b9c695cb016b", "db_session_id": "9474K4QZ2QA6TIYF9LEW", "orig_file_number": 14625612, "seqno_to_time_mapping": "N/A", "__indexstats__": "[...1 records...]"}} 2024/08/20-01:32:24.210210 140500179318336 [compaction_job.cc:699] job-05098: subcompact[0], size: 0.063184 G, files: /storage/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/mytopling/.rocksdb/job-05098/att-00 [14625611,14625612] 2024/08/20-01:32:24.229659 140500179318336 (Original Log Time 2024/08/20-01:32:18.146566) EVENT_LOG_v1 {"time_micros": 1724088738146514, "job": 5098, "event": "compaction_started", "compaction_reason": "LevelMaxLevelSize", "files_L2": [14625517], "files_L3": [14625174, 14624182], "score": 1.09371, "input_data_size": 64379360, "oldest_snapshot_seqno": 189712568928} 2024/08/20-01:32:24.229663 140500179318336 (Original Log Time 2024/08/20-01:32:24.229240) [compaction_job.cc:2018] [default] [JOB 5098] Compacted 1@2 + 2@3 files to L3 => 63183589 bytes 2024/08/20-01:32:24.229664 140500179318336 (Original Log Time 2024/08/20-01:32:24.229593) [compaction_job.cc:1220] [default] compacted to: files[0 0 0 2 0 0 0] max score 0.00, MB/sec: 10.6 rd, 10.4 wr, level 3, files in(1, 2) out(2 +0 blob) MB in(20.3, 41.1 +0.0 blob) out(60.3 +0.0 blob), read-write-amplify(6.0) write-amplify(3.0) OK, records in: 1398520, records dropped: 0 output_compression: Snappy 2024/08/20-01:32:24.229672 140500179318336 (Original Log Time 2024/08/20-01:32:24.229636) EVENT_LOG_v1 {"time_micros": 1724088744229617, "cf": "default", "job": 5098, "event": "compaction_finished", "compaction_time_micros": 6063653, "compaction_time_cpu_micros": 2300401, "output_level": 3, "num_output_files": 2, "total_output_size": 63183589, "num_input_records": 1398520, "num_output_records": 1398520, "num_subcompactions": 1, "output_compression": "Snappy", "num_single_delete_mismatches": 0, "num_single_delete_fallthrough": 0, "file_write_nanos": 46637761, "file_range_sync_nanos": 0, "file_fsync_nanos": 1309, "file_prepare_write_nanos": 6481, "lsm_state": [0, 0, 0, 2, 0, 0, 0]} 2024/08/20-01:32:24.383706 140500179318336 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":1724082090,"starts":1724088737,"executesMs":6233,"compactionJobId":5098,"attempt":0,"compactionInputRawBytes":201327056,"compactionInputZipBytes":64379360,"compactionOutputRawBytes":0,"compactionOutputZipBytes":63183589,"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":"00-64ebff46ec8277c645993d0035103ccd-e0c6cfb26486d5b4-00"}}, response = 2024/08/20-01:32:24.383806 140500179318336 INFO dcompact_worker.cpp:1456: finish /worker/dcompact-log/nfs/i-wz9deglxdazgiryp6ltb_10.57.5.137/2024-08-19T23.41.30/.rocksdb/job-05098/att-00: olev 3, work 6.234 s, result 6.046 ms, install 0.454 ms, input{raw 192.000 MiB zip 61.397 MiB}