[2024-12-10 00:01:31.156705] Starting SPDK v25.01-pre git sha1 43c35d804 / DPDK 24.03.0 initialization... [2024-12-10 00:01:31.157058] [ DPDK EAL parameters: rocksdb --no-shconf -c 0x1 --huge-unlink --no-telemetry --log-level=lib.eal:6 --log-level=lib.cryptodev:5 --log-level=lib.power:5 --log-level=user1:6 --base-virtaddr=0x200000000000 --match-allocations --file-prefix=spdk_pid2322506 ] Set seed to 1733785291149129 because --seed was 0 EAL: No free 2048 kB hugepages reported on node 1 [2024-12-10 00:01:31.481536] app.c: 919:spdk_app_start: *NOTICE*: Total cores available: 1 [2024-12-10 00:01:31.628908] app.c: 612:app_setup_trace: *NOTICE*: Tracepoint Group Mask 0x80 specified. [2024-12-10 00:01:31.628975] app.c: 613:app_setup_trace: *NOTICE*: Use 'spdk_trace -s rocksdb -p 2322506' to capture a snapshot of events at runtime. [2024-12-10 00:01:31.628994] app.c: 618:app_setup_trace: *NOTICE*: 'spdk_trace' without parameters will also work if this is the only [2024-12-10 00:01:31.629013] app.c: 619:app_setup_trace: *NOTICE*: SPDK application currently running. [2024-12-10 00:01:31.629028] app.c: 620:app_setup_trace: *NOTICE*: Or copy /dev/shm/rocksdb_trace.pid2322506 for offline analysis/debug. [2024-12-10 00:01:31.630885] reactor.c:1005:reactor_run: *NOTICE*: Reactor started on core 0 RocksDB: version 8.1.1 Date: Tue Dec 10 00:01:38 2024 CPU: 72 * Intel(R) Xeon(R) Gold 6140 CPU @ 2.30GHz CPUCache: 25344 KB 2024/12/10-00:01:45 ... thread 0: (1000000,1000000) ops and (140938.4,140938.4) ops/second in (7.095300,7.095300) seconds ** Compaction Stats [default] ** Level Files Size Score Read(GB) Rn(GB) Rnp1(GB) Write(GB) Wnew(GB) Moved(GB) W-Amp Rd(MB/s) Wr(MB/s) Comp(sec) CompMergeCPU(sec) Comp(cnt) Avg(sec) KeyIn KeyDrop Rblob(GB) Wblob(GB) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ L0 15/12 2.18 GB 62.6 0.6 0.0 0.6 1.4 0.9 0.0 1.6 76.7 195.7 7.38 6.50 15 0.492 574K 3043 0.0 0.0 L1 3/3 249.21 MB 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0 0.000 0 0 0.0 0.0 L3 19/0 992.11 MB 1.0 1.1 0.8 0.3 1.1 0.7 0.0 1.4 111.9 111.1 9.68 8.84 3 3.226 979K 6320 0.0 0.0 L4 148/0 9.59 GB 1.0 0.0 0.0 0.0 0.0 0.0 0.7 0.0 0.0 0.0 0.00 0.00 0 0.000 0 0 0.0 0.0 L5 156/0 9.84 GB 0.1 0.0 0.0 0.0 0.0 0.0 0.8 0.0 0.0 0.0 0.00 0.00 0 0.000 0 0 0.0 0.0 Sum 341/15 22.83 GB 0.0 1.6 0.8 0.9 2.5 1.6 1.5 2.9 96.7 147.7 17.05 15.34 18 0.947 1553K 9363 0.0 0.0 Int 0/0 0.00 KB 0.0 1.6 0.8 0.9 2.5 1.6 1.5 2.9 96.7 147.7 17.05 15.34 18 0.947 1553K 9363 0.0 0.0 ** Compaction Stats [default] ** Priority Files Size Score Read(GB) Rn(GB) Rnp1(GB) Write(GB) Wnew(GB) Moved(GB) W-Amp Rd(MB/s) Wr(MB/s) Comp(sec) CompMergeCPU(sec) Comp(cnt) Avg(sec) KeyIn KeyDrop Rblob(GB) Wblob(GB) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Low 0/0 0.00 KB 0.0 1.6 0.8 0.9 1.6 0.7 0.0 0.0 132.3 131.5 12.46 11.54 5 2.492 1553K 9363 0.0 0.0 High 0/0 0.00 KB 0.0 0.0 0.0 0.0 0.9 0.9 0.0 0.0 0.0 191.7 4.59 3.80 13 0.353 0 0 0.0 0.0 Blob file count: 0, total size: 0.0 GB, garbage size: 0.0 GB, space amp: 0.0 Uptime(secs): 7.2 total, 7.1 interval Flush(GB): cumulative 0.860, interval 0.860 AddFile(GB): cumulative 0.000, interval 0.000 AddFile(Total Files): cumulative 0, interval 0 AddFile(L0 Files): cumulative 0, interval 0 AddFile(Keys): cumulative 0, interval 0 Cumulative compaction: 2.46 GB write, 347.91 MB/s write, 1.61 GB read, 227.75 MB/s read, 17.1 seconds Interval compaction: 2.46 GB write, 354.73 MB/s write, 1.61 GB read, 232.21 MB/s read, 17.1 seconds Write Stall (count): cf-l0-file-count-limit-delays-with-ongoing-compaction: 0, cf-l0-file-count-limit-stops-with-ongoing-compaction: 0, l0-file-count-limit-delays: 0, l0-file-count-limit-stops: 0, memtable-limit-delays: 0, memtable-limit-stops: 7, pending-compaction-bytes-delays: 0, pending-compaction-bytes-stops: 0, total-delays: 0, total-stops: 7, interval: 7 total count ** File Read Latency Histogram By Level [default] ** ** Level 0 read latency histogram (micros): Count: 194291 Average: 52.6097 StdDev: 173.41 Min: 1 Median: 2.3988 Max: 16790 Percentiles: P50: 2.40 P75: 4.19 P99: 547.83 P99.9: 1205.00 P99.99: 2169.17 ------------------------------------------------------ [ 0, 1 ] 3854 1.984% 1.984% ( 1, 2 ] 70327 36.197% 38.180% ####### ( 2, 3 ] 57586 29.639% 67.819% ###### ( 3, 4 ] 12882 6.630% 74.450% # ( 4, 6 ] 11462 5.899% 80.349% # ( 6, 10 ] 3542 1.823% 82.172% ( 10, 15 ] 746 0.384% 82.556% ( 15, 22 ] 139 0.072% 82.628% ( 22, 34 ] 51 0.026% 82.654% ( 34, 51 ] 3 0.002% 82.655% ( 51, 76 ] 1 0.001% 82.656% ( 76, 110 ] 40 0.021% 82.677% ( 110, 170 ] 4030 2.074% 84.751% ( 170, 250 ] 15288 7.869% 92.619% ## ( 250, 380 ] 9696 4.990% 97.610% # ( 380, 580 ] 3220 1.657% 99.267% ( 580, 870 ] 1071 0.551% 99.818% ( 870, 1300 ] 205 0.106% 99.924% ( 1300, 1900 ] 104 0.054% 99.977% ( 1900, 2900 ] 95 0.049% 100.026% ( 2900, 4400 ] 20 0.010% 100.037% ( 4400, 6600 ] 1 0.001% 100.037% ( 6600, 9900 ] 3 0.002% 100.039% ( 9900, 14000 ] 4 0.002% 100.041% ( 14000, 22000 ] 6 0.003% 100.044% ** Level 1 read latency histogram (micros): Count: 1044 Average: 349.8199 StdDev: 1045.64 Min: 98 Median: 225.7230 Max: 18112 Percentiles: P50: 225.72 P75: 308.01 P99: 2753.33 P99.9: 18112.00 P99.99: 18112.00 ------------------------------------------------------ ( 76, 110 ] 6 0.575% 0.575% ( 110, 170 ] 174 16.667% 17.241% ### ( 170, 250 ] 491 47.031% 64.272% ######### ( 250, 380 ] 251 24.042% 88.314% ##### ( 380, 580 ] 79 7.567% 95.881% ## ( 580, 870 ] 23 2.203% 98.084% ( 870, 1300 ] 6 0.575% 98.659% ( 1300, 1900 ] 1 0.096% 98.755% ( 1900, 2900 ] 3 0.287% 99.042% ( 2900, 4400 ] 1 0.096% 99.138% ( 4400, 6600 ] 3 0.287% 99.425% ( 6600, 9900 ] 2 0.192% 99.617% ( 9900, 14000 ] 1 0.096% 99.713% ( 14000, 22000 ] 3 0.287% 100.000% ** Level 2 read latency histogram (micros): Count: 165270 Average: 9.0243 StdDev: 120.82 Min: 1 Median: 3.3777 Max: 16383 Percentiles: P50: 3.38 P75: 4.81 P99: 193.45 P99.9: 504.01 P99.99: 820.44 ------------------------------------------------------ [ 0, 1 ] 1100 0.666% 0.666% ( 1, 2 ] 32452 19.636% 20.301% #### ( 2, 3 ] 35461 21.456% 41.758% #### ( 3, 4 ] 36066 21.822% 63.580% #### ( 4, 6 ] 46499 28.135% 91.715% ###### ( 6, 10 ] 7825 4.735% 96.450% # ( 10, 15 ] 1707 1.033% 97.483% ( 15, 22 ] 1574 0.952% 98.435% ( 22, 34 ] 335 0.203% 98.638% ( 34, 51 ] 44 0.027% 98.665% ( 51, 76 ] 2 0.001% 98.666% ( 76, 110 ] 1 0.001% 98.666% ( 110, 170 ] 250 0.151% 98.818% ( 170, 250 ] 1028 0.622% 99.440% ( 250, 380 ] 633 0.383% 99.823% ( 380, 580 ] 206 0.125% 99.947% ( 580, 870 ] 85 0.051% 99.999% ( 870, 1300 ] 10 0.006% 100.005% ( 1300, 1900 ] 3 0.002% 100.007% ( 1900, 2900 ] 6 0.004% 100.010% ( 2900, 4400 ] 3 0.002% 100.012% ( 4400, 6600 ] 4 0.002% 100.015% ( 6600, 9900 ] 4 0.002% 100.017% ( 9900, 14000 ] 5 0.003% 100.020% ( 14000, 22000 ] 4 0.002% 100.022% ** Level 3 read latency histogram (micros): Count: 50524 Average: 24.0798 StdDev: 97.93 Min: 1 Median: 4.0863 Max: 4043 Percentiles: P50: 4.09 P75: 5.49 P99: 378.55 P99.9: 855.89 P99.99: 2829.84 ------------------------------------------------------ [ 0, 1 ] 248 0.491% 0.491% ( 1, 2 ] 7748 15.335% 15.826% ### ( 2, 3 ] 5107 10.108% 25.934% ## ( 3, 4 ] 11381 22.526% 48.460% ##### ( 4, 6 ] 18032 35.690% 84.150% ####### ( 6, 10 ] 3274 6.480% 90.630% # ( 10, 15 ] 604 1.195% 91.826% ( 15, 22 ] 581 1.150% 92.976% ( 22, 34 ] 145 0.287% 93.263% ( 34, 51 ] 17 0.034% 93.296% ( 51, 76 ] 3 0.006% 93.302% ( 76, 110 ] 4 0.008% 93.310% ( 110, 170 ] 382 0.756% 94.066% ( 170, 250 ] 1494 2.957% 97.023% # ( 250, 380 ] 1010 1.999% 99.022% ( 380, 580 ] 355 0.703% 99.725% ( 580, 870 ] 93 0.184% 99.909% ( 870, 1300 ] 16 0.032% 99.941% ( 1300, 1900 ] 11 0.022% 99.962% ( 1900, 2900 ] 15 0.030% 99.992% ( 2900, 4400 ] 8 0.016% 100.008% ** Level 4 read latency histogram (micros): Count: 34142 Average: 288.2215 StdDev: 288.58 Min: 97 Median: 232.1317 Max: 6286 Percentiles: P50: 232.13 P75: 321.46 P99: 1246.43 P99.9: 4452.43 P99.99: 6286.00 ------------------------------------------------------ ( 76, 110 ] 24 0.070% 0.070% ( 110, 170 ] 4536 13.286% 13.356% ### ( 170, 250 ] 16109 47.182% 60.538% ######### ( 250, 380 ] 8982 26.308% 86.846% ##### ( 380, 580 ] 3012 8.822% 95.668% ## ( 580, 870 ] 966 2.829% 98.497% # ( 870, 1300 ] 196 0.574% 99.072% ( 1300, 1900 ] 106 0.310% 99.382% ( 1900, 2900 ] 95 0.278% 99.660% ( 2900, 4400 ] 81 0.237% 99.897% ( 4400, 6600 ] 36 0.105% 100.003% ** Level 5 read latency histogram (micros): Count: 32064 Average: 287.2083 StdDev: 281.64 Min: 96 Median: 230.9179 Max: 5658 Percentiles: P50: 230.92 P75: 319.73 P99: 1270.30 P99.9: 4236.19 P99.99: 5658.00 ------------------------------------------------------ ( 76, 110 ] 32 0.100% 0.100% ( 110, 170 ] 4386 13.679% 13.779% ### ( 170, 250 ] 15252 47.567% 61.346% ########## ( 250, 380 ] 8162 25.455% 86.801% ##### ( 380, 580 ] 2805 8.748% 95.550% ## ( 580, 870 ] 936 2.919% 98.469% # ( 870, 1300 ] 183 0.571% 99.039% ( 1300, 1900 ] 92 0.287% 99.326% ( 1900, 2900 ] 110 0.343% 99.669% ( 2900, 4400 ] 83 0.259% 99.928% ( 4400, 6600 ] 23 0.072% 100.000% ** DB Stats ** Uptime(secs): 7.2 total, 7.1 interval Cumulative writes: 0 writes, 1000K keys, 0 commit groups, 0.0 writes per commit group, ingest: 0.96 GB, 135.94 MB/s Cumulative WAL: 0 writes, 0 syncs, 0.00 writes per sync, written: 0.00 GB, 0.00 MB/s Cumulative stall: 00:00:0.552 H:M:S, 7.6 percent Interval writes: 0 writes, 1000K keys, 0 commit groups, 0.0 writes per commit group, ingest: 984.19 MB, 138.58 MB/s Interval WAL: 0 writes, 0 syncs, 0.00 writes per sync, written: 0.00 GB, 0.00 MB/s Interval stall: 00:00:0.552 H:M:S, 7.8 percent Write Stall (count): write-buffer-manager-limit-stops: 0, num-running-compactions: 2 num-running-flushes: 1 2024/12/10-00:01:52 ... thread 0: (1000000,2000000) ops and (132329.8,136498.5) ops/second in (7.556875,14.652175) seconds ** Compaction Stats [default] ** Level Files Size Score Read(GB) Rn(GB) Rnp1(GB) Write(GB) Wnew(GB) Moved(GB) W-Amp Rd(MB/s) Wr(MB/s) Comp(sec) CompMergeCPU(sec) Comp(cnt) Avg(sec) KeyIn KeyDrop Rblob(GB) Wblob(GB) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ L0 16/14 3.16 GB 31.3 1.8 0.0 1.8 3.6 1.8 0.0 2.0 79.8 162.0 22.85 20.83 36 0.635 1852K 9200 0.0 0.0 L1 3/3 249.21 MB 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0 0.000 0 0 0.0 0.0 L3 19/0 992.11 MB 1.0 1.1 0.8 0.3 1.1 0.7 0.0 1.4 111.9 111.1 9.68 8.84 3 3.226 979K 6320 0.0 0.0 L4 148/0 9.59 GB 1.0 0.0 0.0 0.0 0.0 0.0 0.7 0.0 0.0 0.0 0.00 0.00 0 0.000 0 0 0.0 0.0 L5 156/0 9.84 GB 0.1 0.0 0.0 0.0 0.0 0.0 0.8 0.0 0.0 0.0 0.00 0.00 0 0.000 0 0 0.0 0.0 Sum 342/17 23.80 GB 0.0 2.8 0.8 2.1 4.7 2.6 1.5 2.5 89.4 146.9 32.53 29.67 39 0.834 2831K 15K 0.0 0.0 Int 0/0 0.00 KB 0.0 2.8 0.8 2.1 4.7 2.6 1.5 2.5 89.4 146.9 32.53 29.67 39 0.834 2831K 15K 0.0 0.0 ** Compaction Stats [default] ** Priority Files Size Score Read(GB) Rn(GB) Rnp1(GB) Write(GB) Wnew(GB) Moved(GB) W-Amp Rd(MB/s) Wr(MB/s) Comp(sec) CompMergeCPU(sec) Comp(cnt) Avg(sec) KeyIn KeyDrop Rblob(GB) Wblob(GB) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Low 0/0 0.00 KB 0.0 2.8 0.8 2.1 2.8 0.7 0.0 0.0 127.7 127.0 22.76 21.51 10 2.276 2831K 15K 0.0 0.0 High 0/0 0.00 KB 0.0 0.0 0.0 0.0 1.8 1.8 0.0 0.0 0.0 193.2 9.77 8.16 29 0.337 0 0 0.0 0.0 Blob file count: 0, total size: 0.0 GB, garbage size: 0.0 GB, space amp: 0.0 Uptime(secs): 14.8 total, 14.7 interval Flush(GB): cumulative 1.843, interval 1.843 AddFile(GB): cumulative 0.000, interval 0.000 AddFile(Total Files): cumulative 0, interval 0 AddFile(L0 Files): cumulative 0, interval 0 AddFile(Keys): cumulative 0, interval 0 Cumulative compaction: 4.67 GB write, 322.86 MB/s write, 2.84 GB read, 196.47 MB/s read, 32.5 seconds Interval compaction: 4.67 GB write, 325.92 MB/s write, 2.84 GB read, 198.33 MB/s read, 32.5 seconds Write Stall (count): cf-l0-file-count-limit-delays-with-ongoing-compaction: 8, cf-l0-file-count-limit-stops-with-ongoing-compaction: 0, l0-file-count-limit-delays: 8, l0-file-count-limit-stops: 0, memtable-limit-delays: 0, memtable-limit-stops: 7, pending-compaction-bytes-delays: 0, pending-compaction-bytes-stops: 0, total-delays: 8, total-stops: 7, interval: 15 total count ** File Read Latency Histogram By Level [default] ** ** Level 0 read latency histogram (micros): Count: 567297 Average: 40.6836 StdDev: 124.97 Min: 1 Median: 3.3339 Max: 16790 Percentiles: P50: 3.33 P75: 5.27 P99: 449.07 P99.9: 791.82 P99.99: 907.95 ------------------------------------------------------ [ 0, 1 ] 16741 2.951% 2.951% # ( 1, 2 ] 113924 20.082% 23.033% #### ( 2, 3 ] 112008 19.744% 42.777% #### ( 3, 4 ] 122724 21.633% 64.410% #### ( 4, 6 ] 94356 16.633% 81.043% ### ( 6, 10 ] 20030 3.531% 84.574% # ( 10, 15 ] 3954 0.697% 85.271% ( 15, 22 ] 1404 0.247% 85.518% ( 22, 34 ] 495 0.087% 85.605% ( 34, 51 ] 42 0.007% 85.613% ( 51, 76 ] 4 0.001% 85.613% ( 76, 110 ] 92 0.016% 85.630% ( 110, 170 ] 12388 2.184% 87.813% ( 170, 250 ] 41428 7.303% 95.116% # ( 250, 380 ] 20042 3.533% 98.649% # ( 380, 580 ] 5774 1.018% 99.667% ( 580, 870 ] 1815 0.320% 99.987% ( 870, 1300 ] 241 0.042% 100.029% ( 1300, 1900 ] 118 0.021% 100.050% ( 1900, 2900 ] 110 0.019% 100.069% ( 2900, 4400 ] 32 0.006% 100.075% ( 4400, 6600 ] 1 0.000% 100.075% ( 6600, 9900 ] 3 0.001% 100.076% ( 9900, 14000 ] 4 0.001% 100.076% ( 14000, 22000 ] 6 0.001% 100.077% ** Level 1 read latency histogram (micros): Count: 2281 Average: 284.1898 StdDev: 715.79 Min: 97 Median: 216.7241 Max: 18112 Percentiles: P50: 216.72 P75: 274.91 P99: 864.13 P99.9: 15917.33 P99.99: 18112.00 ------------------------------------------------------ ( 76, 110 ] 12 0.526% 0.526% ( 110, 170 ] 451 19.772% 20.298% #### ( 170, 250 ] 1160 50.855% 71.153% ########## ( 250, 380 ] 458 20.079% 91.232% #### ( 380, 580 ] 138 6.050% 97.282% # ( 580, 870 ] 40 1.754% 99.036% ( 870, 1300 ] 7 0.307% 99.342% ( 1300, 1900 ] 1 0.044% 99.386% ( 1900, 2900 ] 3 0.132% 99.518% ( 2900, 4400 ] 2 0.088% 99.605% ( 4400, 6600 ] 3 0.132% 99.737% ( 6600, 9900 ] 2 0.088% 99.825% ( 9900, 14000 ] 1 0.044% 99.868% ( 14000, 22000 ] 3 0.132% 100.000% ** Level 2 read latency histogram (micros): Count: 165270 Average: 9.0243 StdDev: 120.82 Min: 1 Median: 3.3777 Max: 16383 Percentiles: P50: 3.38 P75: 4.81 P99: 193.45 P99.9: 504.01 P99.99: 820.44 ------------------------------------------------------ [ 0, 1 ] 1100 0.666% 0.666% ( 1, 2 ] 32452 19.636% 20.301% #### ( 2, 3 ] 35461 21.456% 41.758% #### ( 3, 4 ] 36066 21.822% 63.580% #### ( 4, 6 ] 46499 28.135% 91.715% ###### ( 6, 10 ] 7825 4.735% 96.450% # ( 10, 15 ] 1707 1.033% 97.483% ( 15, 22 ] 1574 0.952% 98.435% ( 22, 34 ] 335 0.203% 98.638% ( 34, 51 ] 44 0.027% 98.665% ( 51, 76 ] 2 0.001% 98.666% ( 76, 110 ] 1 0.001% 98.666% ( 110, 170 ] 250 0.151% 98.818% ( 170, 250 ] 1028 0.622% 99.440% ( 250, 380 ] 633 0.383% 99.823% ( 380, 580 ] 206 0.125% 99.947% ( 580, 870 ] 85 0.051% 99.999% ( 870, 1300 ] 10 0.006% 100.005% ( 1300, 1900 ] 3 0.002% 100.007% ( 1900, 2900 ] 6 0.004% 100.010% ( 2900, 4400 ] 3 0.002% 100.012% ( 4400, 6600 ] 4 0.002% 100.015% ( 6600, 9900 ] 4 0.002% 100.017% ( 9900, 14000 ] 5 0.003% 100.020% ( 14000, 22000 ] 4 0.002% 100.022% ** Level 3 read latency histogram (micros): Count: 58864 Average: 48.1495 StdDev: 117.46 Min: 1 Median: 4.4727 Max: 4043 Percentiles: P50: 4.47 P75: 6.36 P99: 480.95 P99.9: 856.40 P99.99: 2774.24 ------------------------------------------------------ [ 0, 1 ] 248 0.421% 0.421% ( 1, 2 ] 7805 13.259% 13.681% ### ( 2, 3 ] 5332 9.058% 22.739% ## ( 3, 4 ] 11588 19.686% 42.425% #### ( 4, 6 ] 18868 32.054% 74.478% ###### ( 6, 10 ] 3375 5.734% 80.212% # ( 10, 15 ] 635 1.079% 81.291% ( 15, 22 ] 593 1.007% 82.298% ( 22, 34 ] 150 0.255% 82.553% ( 34, 51 ] 17 0.029% 82.582% ( 51, 76 ] 3 0.005% 82.587% ( 76, 110 ] 6 0.010% 82.597% ( 110, 170 ] 1555 2.642% 85.239% # ( 170, 250 ] 5382 9.143% 94.382% ## ( 250, 380 ] 2362 4.013% 98.395% # ( 380, 580 ] 706 1.199% 99.594% ( 580, 870 ] 189 0.321% 99.915% ( 870, 1300 ] 20 0.034% 99.949% ( 1300, 1900 ] 11 0.019% 99.968% ( 1900, 2900 ] 15 0.025% 99.993% ( 2900, 4400 ] 8 0.014% 100.007% ** Level 4 read latency histogram (micros): Count: 75043 Average: 259.2742 StdDev: 210.56 Min: 94 Median: 222.5383 Max: 6286 Percentiles: P50: 222.54 P75: 291.76 P99: 834.30 P99.9: 3693.36 P99.99: 6080.29 ------------------------------------------------------ ( 76, 110 ] 65 0.087% 0.087% ( 110, 170 ] 11938 15.908% 15.995% ### ( 170, 250 ] 38857 51.780% 67.774% ########## ( 250, 380 ] 16878 22.491% 90.266% #### ( 380, 580 ] 5191 6.917% 97.183% # ( 580, 870 ] 1555 2.072% 99.255% ( 870, 1300 ] 223 0.297% 99.552% ( 1300, 1900 ] 115 0.153% 99.706% ( 1900, 2900 ] 101 0.135% 99.840% ( 2900, 4400 ] 85 0.113% 99.953% ( 4400, 6600 ] 36 0.048% 100.001% ** Level 5 read latency histogram (micros): Count: 70464 Average: 258.2791 StdDev: 205.63 Min: 95 Median: 221.9929 Max: 5658 Percentiles: P50: 221.99 P75: 290.43 P99: 833.32 P99.9: 3552.43 P99.99: 5658.00 ------------------------------------------------------ ( 76, 110 ] 84 0.119% 0.119% ( 110, 170 ] 11462 16.266% 16.386% ### ( 170, 250 ] 36445 51.721% 68.107% ########## ( 250, 380 ] 15619 22.166% 90.273% #### ( 380, 580 ] 4888 6.937% 97.210% # ( 580, 870 ] 1444 2.049% 99.259% ( 870, 1300 ] 199 0.282% 99.542% ( 1300, 1900 ] 100 0.142% 99.684% ( 1900, 2900 ] 116 0.165% 99.848% ( 2900, 4400 ] 84 0.119% 99.967% ( 4400, 6600 ] 23 0.033% 100.000% ** DB Stats ** Uptime(secs): 14.8 total, 7.6 interval Cumulative writes: 0 writes, 2000K keys, 0 commit groups, 0.0 writes per commit group, ingest: 1.92 GB, 133.02 MB/s Cumulative WAL: 0 writes, 0 syncs, 0.00 writes per sync, written: 0.00 GB, 0.00 MB/s Cumulative stall: 00:00:2.684 H:M:S, 18.1 percent Interval writes: 0 writes, 1000K keys, 0 commit groups, 0.0 writes per commit group, ingest: 984.19 MB, 130.22 MB/s Interval WAL: 0 writes, 0 syncs, 0.00 writes per sync, written: 0.00 GB, 0.00 MB/s Interval stall: 00:00:2.132 H:M:S, 28.2 percent Write Stall (count): write-buffer-manager-limit-stops: 0, num-running-compactions: 2 num-running-flushes: 1 using bdev Nvme0n1 Initializing RocksDB Options from the specified file Initializing RocksDB Options from command-line flags Integrated BlobDB: blob cache disabled Keys: 16 bytes each (+ 0 bytes user-defined timestamp) Values: 1000 bytes each (1000 bytes after compression) Entries: 20000000 Prefix: 0 bytes Keys per prefix: 0 RawSize: 19378.7 MB (estimated) FileSize: 19378.7 MB (estimated) Write rate: 0 bytes/second Read rate: 0 ops/second Compression: NoCompression Compression sampling rate: 0 Memtablerep: SkipListFactory Perf Level: 1 ------------------------------------------------ DB path: [/mnt/rocksdb] readwhilewriting : 319.917 micros/op 12476 ops/sec 20.118 seconds 250996 operations; 12.1 MB/s (62999 of 62999 found) Microseconds per read: Count: 250996 Average: 319.9298 StdDev: 507.52 Min: 2 Median: 278.5056 Max: 44468 Percentiles: P50: 278.51 P75: 361.64 P99: 987.44 P99.9: 7963.84 P99.99: 22550.24 ------------------------------------------------------ ( 1, 2 ] 13 0.005% 0.005% ( 2, 3 ] 49 0.020% 0.025% ( 3, 4 ] 49 0.020% 0.044% ( 4, 6 ] 136 0.054% 0.098% ( 6, 10 ] 430 0.171% 0.270% ( 10, 15 ] 1219 0.486% 0.755% ( 15, 22 ] 1388 0.553% 1.308% ( 22, 34 ] 5233 2.085% 3.393% ( 34, 51 ] 3724 1.484% 4.877% ( 51, 76 ] 674 0.269% 5.146% ( 76, 110 ] 66 0.026% 5.172% ( 110, 170 ] 5389 2.147% 7.319% ( 170, 250 ] 85612 34.109% 41.428% ####### ( 250, 380 ] 98124 39.094% 80.522% ######## ( 380, 580 ] 33228 13.238% 93.760% ### ( 580, 870 ] 12490 4.976% 98.736% # ( 870, 1300 ] 2424 0.966% 99.702% ( 1300, 1900 ] 266 0.106% 99.808% ( 1900, 2900 ] 74 0.029% 99.837% ( 2900, 4400 ] 45 0.018% 99.855% ( 4400, 6600 ] 31 0.012% 99.868% ( 6600, 9900 ] 196 0.078% 99.946% ( 9900, 14000 ] 87 0.035% 99.980% ( 14000, 22000 ] 23 0.009% 99.990% ( 22000, 33000 ] 18 0.007% 99.997% ( 33000, 50000 ] 8 0.003% 100.000% STATISTICS: rocksdb.block.cache.miss COUNT : 0 rocksdb.block.cache.hit COUNT : 0 rocksdb.block.cache.add COUNT : 0 rocksdb.block.cache.add.failures COUNT : 0 rocksdb.block.cache.index.miss COUNT : 0 rocksdb.block.cache.index.hit COUNT : 0 rocksdb.block.cache.index.add COUNT : 0 rocksdb.block.cache.index.bytes.insert COUNT : 0 rocksdb.block.cache.filter.miss COUNT : 0 rocksdb.block.cache.filter.hit COUNT : 0 rocksdb.block.cache.filter.add COUNT : 0 rocksdb.block.cache.filter.bytes.insert COUNT : 0 rocksdb.block.cache.data.miss COUNT : 0 rocksdb.block.cache.data.hit COUNT : 0 rocksdb.block.cache.data.add COUNT : 0 rocksdb.block.cache.data.bytes.insert COUNT : 0 rocksdb.block.cache.bytes.read COUNT : 0 rocksdb.block.cache.bytes.write COUNT : 0 rocksdb.bloom.filter.useful COUNT : 4089069 rocksdb.bloom.filter.full.positive COUNT : 289536 rocksdb.bloom.filter.full.true.positive COUNT : 249920 rocksdb.persistent.cache.hit COUNT : 0 rocksdb.persistent.cache.miss COUNT : 0 rocksdb.sim.block.cache.hit COUNT : 0 rocksdb.sim.block.cache.miss COUNT : 0 rocksdb.memtable.hit COUNT : 1076 rocksdb.memtable.miss COUNT : 249920 rocksdb.l0.hit COUNT : 31596 rocksdb.l1.hit COUNT : 2739 rocksdb.l2andup.hit COUNT : 215585 rocksdb.compaction.key.drop.new COUNT : 39716 rocksdb.compaction.key.drop.obsolete COUNT : 0 rocksdb.compaction.key.drop.range_del COUNT : 0 rocksdb.compaction.key.drop.user COUNT : 0 rocksdb.compaction.range_del.drop.obsolete COUNT : 0 rocksdb.compaction.optimized.del.drop.obsolete COUNT : 0 rocksdb.compaction.cancelled COUNT : 0 rocksdb.number.keys.written COUNT : 2429705 rocksdb.number.keys.read COUNT : 250996 rocksdb.number.keys.updated COUNT : 0 rocksdb.bytes.written COUNT : 2507455560 rocksdb.bytes.read COUNT : 250996000 rocksdb.number.db.seek COUNT : 0 rocksdb.number.db.next COUNT : 0 rocksdb.number.db.prev COUNT : 0 rocksdb.number.db.seek.found COUNT : 0 rocksdb.number.db.next.found COUNT : 0 rocksdb.number.db.prev.found COUNT : 0 rocksdb.db.iter.bytes.read COUNT : 0 rocksdb.no.file.opens COUNT : 392 rocksdb.no.file.errors COUNT : 0 rocksdb.stall.micros COUNT : 3828967 rocksdb.db.mutex.wait.micros COUNT : 0 rocksdb.number.multiget.get COUNT : 0 rocksdb.number.multiget.keys.read COUNT : 0 rocksdb.number.multiget.bytes.read COUNT : 0 rocksdb.number.merge.failures COUNT : 0 rocksdb.bloom.filter.prefix.checked COUNT : 0 rocksdb.bloom.filter.prefix.useful COUNT : 0 rocksdb.number.reseeks.iteration COUNT : 0 rocksdb.getupdatessince.calls COUNT : 0 rocksdb.wal.synced COUNT : 0 rocksdb.wal.bytes COUNT : 0 rocksdb.write.self COUNT : 0 rocksdb.write.other COUNT : 0 rocksdb.write.wal COUNT : 0 rocksdb.compact.read.bytes COUNT : 4263412326 rocksdb.compact.write.bytes COUNT : 4220340781 rocksdb.flush.write.bytes COUNT : 2440626512 rocksdb.compact.read.marked.bytes COUNT : 0 rocksdb.compact.read.periodic.bytes COUNT : 0 rocksdb.compact.read.ttl.bytes COUNT : 0 rocksdb.compact.write.marked.bytes COUNT : 0 rocksdb.compact.write.periodic.bytes COUNT : 0 rocksdb.compact.write.ttl.bytes COUNT : 0 rocksdb.number.direct.load.table.properties COUNT : 9 rocksdb.number.superversion_acquires COUNT : 388 rocksdb.number.superversion_releases COUNT : 362 rocksdb.number.superversion_cleanups COUNT : 91 rocksdb.number.block.compressed COUNT : 0 rocksdb.number.block.decompressed COUNT : 0 rocksdb.number.block.not_compressed COUNT : 0 rocksdb.merge.operation.time.nanos COUNT : 0 rocksdb.filter.operation.time.nanos COUNT : 0 rocksdb.row.cache.hit COUNT : 0 rocksdb.row.cache.miss COUNT : 0 rocksdb.read.amp.estimate.useful.bytes COUNT : 0 rocksdb.read.amp.total.read.bytes COUNT : 0 rocksdb.number.rate_limiter.drains COUNT : 0 rocksdb.number.iter.skip COUNT : 0 rocksdb.blobdb.num.put COUNT : 0 rocksdb.blobdb.num.write COUNT : 0 rocksdb.blobdb.num.get COUNT : 0 rocksdb.blobdb.num.multiget COUNT : 0 rocksdb.blobdb.num.seek COUNT : 0 rocksdb.blobdb.num.next COUNT : 0 rocksdb.blobdb.num.prev COUNT : 0 rocksdb.blobdb.num.keys.written COUNT : 0 rocksdb.blobdb.num.keys.read COUNT : 0 rocksdb.blobdb.bytes.written COUNT : 0 rocksdb.blobdb.bytes.read COUNT : 0 rocksdb.blobdb.write.inlined COUNT : 0 rocksdb.blobdb.write.inlined.ttl COUNT : 0 rocksdb.blobdb.write.blob COUNT : 0 rocksdb.blobdb.write.blob.ttl COUNT : 0 rocksdb.blobdb.blob.file.bytes.written COUNT : 0 rocksdb.blobdb.blob.file.bytes.read COUNT : 0 rocksdb.blobdb.blob.file.synced COUNT : 0 rocksdb.blobdb.blob.index.expired.count COUNT : 0 rocksdb.blobdb.blob.index.expired.size COUNT : 0 rocksdb.blobdb.blob.index.evicted.count COUNT : 0 rocksdb.blobdb.blob.index.evicted.size COUNT : 0 rocksdb.blobdb.gc.num.files COUNT : 0 rocksdb.blobdb.gc.num.new.files COUNT : 0 rocksdb.blobdb.gc.failures COUNT : 0 rocksdb.blobdb.gc.num.keys.relocated COUNT : 0 rocksdb.blobdb.gc.bytes.relocated COUNT : 0 rocksdb.blobdb.fifo.num.files.evicted COUNT : 0 rocksdb.blobdb.fifo.num.keys.evicted COUNT : 0 rocksdb.blobdb.fifo.bytes.evicted COUNT : 0 rocksdb.txn.overhead.mutex.prepare COUNT : 0 rocksdb.txn.overhead.mutex.old.commit.map COUNT : 0 rocksdb.txn.overhead.duplicate.key COUNT : 0 rocksdb.txn.overhead.mutex.snapshot COUNT : 0 rocksdb.txn.get.tryagain COUNT : 0 rocksdb.number.multiget.keys.found COUNT : 0 rocksdb.num.iterator.created COUNT : 0 rocksdb.num.iterator.deleted COUNT : 0 rocksdb.block.cache.compression.dict.miss COUNT : 0 rocksdb.block.cache.compression.dict.hit COUNT : 0 rocksdb.block.cache.compression.dict.add COUNT : 0 rocksdb.block.cache.compression.dict.bytes.insert COUNT : 0 rocksdb.block.cache.add.redundant COUNT : 0 rocksdb.block.cache.index.add.redundant COUNT : 0 rocksdb.block.cache.filter.add.redundant COUNT : 0 rocksdb.block.cache.data.add.redundant COUNT : 0 rocksdb.block.cache.compression.dict.add.redundant COUNT : 0 rocksdb.files.marked.trash COUNT : 0 rocksdb.files.deleted.immediately COUNT : 0 rocksdb.error.handler.bg.errro.count COUNT : 0 rocksdb.error.handler.bg.io.errro.count COUNT : 0 rocksdb.error.handler.bg.retryable.io.errro.count COUNT : 0 rocksdb.error.handler.autoresume.count COUNT : 0 rocksdb.error.handler.autoresume.retry.total.count COUNT : 0 rocksdb.error.handler.autoresume.success.count COUNT : 0 rocksdb.memtable.payload.bytes.at.flush COUNT : 2424423424 rocksdb.memtable.garbage.bytes.at.flush COUNT : 4123648 rocksdb.secondary.cache.hits COUNT : 0 rocksdb.verify_checksum.read.bytes COUNT : 0 rocksdb.backup.read.bytes COUNT : 0 rocksdb.backup.write.bytes COUNT : 0 rocksdb.remote.compact.read.bytes COUNT : 0 rocksdb.remote.compact.write.bytes COUNT : 0 rocksdb.hot.file.read.bytes COUNT : 0 rocksdb.warm.file.read.bytes COUNT : 0 rocksdb.cold.file.read.bytes COUNT : 0 rocksdb.hot.file.read.count COUNT : 0 rocksdb.warm.file.read.count COUNT : 0 rocksdb.cold.file.read.count COUNT : 0 rocksdb.last.level.read.bytes COUNT : 0 rocksdb.last.level.read.count COUNT : 0 rocksdb.non.last.level.read.bytes COUNT : 5344034001 rocksdb.non.last.level.read.count COUNT : 1260612 rocksdb.block.checksum.compute.count COUNT : 1326145 rocksdb.multiget.coroutine.count COUNT : 0 rocksdb.blobdb.cache.miss COUNT : 0 rocksdb.blobdb.cache.hit COUNT : 0 rocksdb.blobdb.cache.add COUNT : 0 rocksdb.blobdb.cache.add.failures COUNT : 0 rocksdb.blobdb.cache.bytes.read COUNT : 0 rocksdb.blobdb.cache.bytes.write COUNT : 0 rocksdb.read.async.micros COUNT : 0 rocksdb.async.read.error.count COUNT : 0 rocksdb.secondary.cache.filter.hits COUNT : 0 rocksdb.secondary.cache.index.hits COUNT : 0 rocksdb.secondary.cache.data.hits COUNT : 0 rocksdb.table.open.prefetch.tail.miss COUNT : 0 rocksdb.table.open.prefetch.tail.hit COUNT : 0 rocksdb.db.get.micros P50 : 276.841453 P95 : 649.643158 P99 : 985.185714 P100 : 44467.000000 COUNT : 250996 SUM : 80029123 rocksdb.db.write.micros P50 : 3.033436 P95 : 10.911144 P99 : 15.999396 P100 : 481373.000000 COUNT : 2429705 SUM : 14628577 rocksdb.compaction.times.micros P50 : 2066666.666667 P95 : 4896038.000000 P99 : 4896038.000000 P100 : 4896038.000000 COUNT : 12 SUM : 24686122 rocksdb.compaction.times.cpu_micros P50 : 1900000.000000 P95 : 4449840.000000 P99 : 4449840.000000 P100 : 4449840.000000 COUNT : 12 SUM : 23397057 rocksdb.subcompaction.setup.times.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.table.sync.micros P50 : 1068.461538 P95 : 2232.000000 P99 : 2232.000000 P100 : 2232.000000 COUNT : 36 SUM : 43114 rocksdb.compaction.outfile.sync.micros P50 : 1380.000000 P95 : 2400.000000 P99 : 3230.000000 P100 : 3230.000000 COUNT : 30 SUM : 40376 rocksdb.wal.file.sync.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.manifest.file.sync.micros P50 : 310.517241 P95 : 616.250000 P99 : 2025.000000 P100 : 2025.000000 COUNT : 55 SUM : 19603 rocksdb.table.open.io.micros P50 : 6771.676301 P95 : 12575.789474 P99 : 42595.555556 P100 : 49339.000000 COUNT : 392 SUM : 2921610 rocksdb.db.multiget.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.read.block.compaction.micros P50 : 6.225270 P95 : 211.877746 P99 : 364.851717 P100 : 12602.000000 COUNT : 1033114 SUM : 28481295 rocksdb.read.block.get.micros P50 : 221.747381 P95 : 488.335218 P99 : 778.891482 P100 : 18251.000000 COUNT : 292675 SUM : 70150951 rocksdb.write.raw.block.micros P50 : 0.848944 P95 : 2.554390 P99 : 8.568943 P100 : 5173.000000 COUNT : 1614343 SUM : 5866286 rocksdb.numfiles.in.singlecompaction P50 : 4.000000 P95 : 6.000000 P99 : 11.000000 P100 : 11.000000 COUNT : 20 SUM : 90 rocksdb.db.seek.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.db.write.stall P50 : 0.561771 P95 : 1109.699041 P99 : 1278.064808 P100 : 481136.000000 COUNT : 27565 SUM : 3832641 rocksdb.sst.read.micros P50 : 3.639640 P95 : 331.529111 P99 : 541.730213 P100 : 18112.000000 COUNT : 1260684 SUM : 92746274 rocksdb.num.subcompactions.scheduled P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.bytes.per.read P50 : 1000.000000 P95 : 1000.000000 P99 : 1000.000000 P100 : 1000.000000 COUNT : 250996 SUM : 250996000 rocksdb.bytes.per.write P50 : 1032.000000 P95 : 1032.000000 P99 : 1032.000000 P100 : 1032.000000 COUNT : 2429705 SUM : 2507455560 rocksdb.bytes.per.multiget P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.bytes.compressed P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.bytes.decompressed P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.compression.times.nanos P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.decompression.times.nanos P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.read.num.merge_operands P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.key.size P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.value.size P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.write.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.get.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.multiget.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.seek.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.next.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.prev.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.blob.file.write.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.blob.file.read.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.blob.file.sync.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.compression.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.blobdb.decompression.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.db.flush.micros P50 : 320909.090909 P95 : 548285.714286 P99 : 755600.000000 P100 : 804858.000000 COUNT : 36 SUM : 11704797 rocksdb.sst.batch.size P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.num.index.and.filter.blocks.read.per.level P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.num.sst.read.per.level P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.error.handler.autoresume.retry.count P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.async.read.bytes P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.poll.wait.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.prefetched.bytes.discarded P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 49 SUM : 0 rocksdb.multiget.io.batch.size P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.num.level.read.per.multiget P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.async.prefetch.abort.micros P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0 rocksdb.table.open.prefetch.tail.read.bytes P50 : 0.000000 P95 : 0.000000 P99 : 0.000000 P100 : 0.000000 COUNT : 0 SUM : 0