== sanity test 398c: run fio to test AIO ================= 18:44:41 (1784414681) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.127608 s, 329 MB/s osc.lustre-OST0000-osc-ffff8a4d38c77000.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=158299: Sat Jul 18 18:45:14 2026 write: IOPS=86, BW=346KiB/s (355kB/s)(10.0MiB/29565msec); 0 zone resets slat (usec): min=40, max=810, avg=233.17, stdev=107.35 clat (msec): min=60, max=270, avg=184.29, stdev=31.21 lat (msec): min=60, max=270, avg=184.53, stdev=31.22 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 134], 10.00th=[ 146], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 203], 80.00th=[ 213], 90.00th=[ 224], 95.00th=[ 234], | 99.00th=[ 249], 99.50th=[ 255], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 280, max= 433, per=24.87%, avg=344.43, stdev=39.95, samples=58 iops : min= 70, max= 108, avg=86.10, stdev= 9.98, samples=58 lat (msec) : 100=0.94%, 250=98.20%, 500=0.86% cpu : usr=0.15%, sys=1.64%, ctx=2813, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=158300: Sat Jul 18 18:45:14 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29519msec); 0 zone resets slat (usec): min=41, max=1584, avg=227.71, stdev=112.25 clat (msec): min=33, max=327, avg=184.11, stdev=33.77 lat (msec): min=34, max=327, avg=184.34, stdev=33.78 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 213], 90.00th=[ 224], 95.00th=[ 234], | 99.00th=[ 257], 99.50th=[ 268], 99.90th=[ 317], 99.95th=[ 326], | 99.99th=[ 330] bw ( KiB/s): min= 280, max= 525, per=25.01%, avg=346.43, stdev=47.52, samples=58 iops : min= 70, max= 131, avg=86.60, stdev=11.86, samples=58 lat (msec) : 50=0.62%, 100=0.12%, 250=97.93%, 500=1.33% cpu : usr=0.13%, sys=1.61%, ctx=2772, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=158301: Sat Jul 18 18:45:14 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29519msec); 0 zone resets slat (usec): min=44, max=1444, avg=229.65, stdev=103.05 clat (msec): min=32, max=317, avg=184.04, stdev=32.16 lat (msec): min=32, max=317, avg=184.27, stdev=32.16 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 131], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 234], | 99.00th=[ 251], 99.50th=[ 262], 99.90th=[ 309], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 256, max= 525, per=24.96%, avg=345.74, stdev=47.16, samples=58 iops : min= 64, max= 131, avg=86.43, stdev=11.77, samples=58 lat (msec) : 50=0.08%, 100=1.25%, 250=97.54%, 500=1.13% cpu : usr=0.14%, sys=1.66%, ctx=2773, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=158302: Sat Jul 18 18:45:14 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29540msec); 0 zone resets slat (usec): min=44, max=764, avg=231.29, stdev=104.69 clat (msec): min=62, max=270, avg=184.17, stdev=30.79 lat (msec): min=62, max=270, avg=184.40, stdev=30.80 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 203], 80.00th=[ 211], 90.00th=[ 224], 95.00th=[ 232], | 99.00th=[ 251], 99.50th=[ 259], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 271] bw ( KiB/s): min= 256, max= 446, per=24.91%, avg=345.07, stdev=42.71, samples=58 iops : min= 64, max= 111, avg=86.26, stdev=10.66, samples=58 lat (msec) : 100=0.90%, 250=98.16%, 500=0.94% cpu : usr=0.19%, sys=1.61%, ctx=2739, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): WRITE: bw=1385KiB/s (1419kB/s), 346KiB/s-347KiB/s (355kB/s-355kB/s), io=40.0MiB (41.9MB), run=29519-29565msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=158316: Sat Jul 18 18:45:36 2026 read: IOPS=67, BW=269KiB/s (276kB/s)(5048KiB/18750msec) slat (usec): min=990, max=7315, avg=2384.61, stdev=806.96 clat (msec): min=3, max=121, avg=74.18, stdev=13.80 lat (msec): min=5, max=125, avg=76.57, stdev=13.90 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 54], 10.00th=[ 59], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 82], 80.00th=[ 86], 90.00th=[ 91], 95.00th=[ 96], | 99.00th=[ 111], 99.50th=[ 115], 99.90th=[ 120], 99.95th=[ 123], | 99.99th=[ 123] bw ( KiB/s): min= 144, max= 400, per=25.04%, avg=267.95, stdev=56.26, samples=37 iops : min= 36, max= 100, avg=66.95, stdev=14.07, samples=37 write: IOPS=69, BW=277KiB/s (284kB/s)(5192KiB/18750msec); 0 zone resets slat (usec): min=52, max=886, avg=183.13, stdev=92.40 clat (msec): min=37, max=292, avg=156.03, stdev=39.71 lat (msec): min=37, max=292, avg=156.21, stdev=39.71 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 96], 10.00th=[ 107], 20.00th=[ 122], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 209], 95.00th=[ 228], | 99.00th=[ 262], 99.50th=[ 268], 99.90th=[ 284], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 208, max= 336, per=24.79%, avg=276.16, stdev=34.69, samples=37 iops : min= 52, max= 84, avg=69.00, stdev= 8.67, samples=37 lat (msec) : 4=0.08%, 20=0.16%, 50=0.90%, 100=50.16%, 250=47.70% lat (msec) : 500=1.02% cpu : usr=0.20%, sys=2.42%, ctx=4874, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158317: Sat Jul 18 18:45:36 2026 read: IOPS=66, BW=266KiB/s (272kB/s)(4976KiB/18738msec) slat (usec): min=79, max=8743, avg=2355.90, stdev=805.84 clat (msec): min=4, max=146, avg=73.73, stdev=14.03 lat (msec): min=4, max=148, avg=76.08, stdev=14.17 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 58], 20.00th=[ 63], | 30.00th=[ 67], 40.00th=[ 71], 50.00th=[ 73], 60.00th=[ 78], | 70.00th=[ 81], 80.00th=[ 86], 90.00th=[ 90], 95.00th=[ 97], | 99.00th=[ 107], 99.50th=[ 114], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 120, max= 360, per=24.72%, avg=264.46, stdev=52.84, samples=37 iops : min= 30, max= 90, avg=66.08, stdev=13.20, samples=37 write: IOPS=70, BW=281KiB/s (288kB/s)(5264KiB/18738msec); 0 zone resets slat (usec): min=54, max=1166, avg=179.81, stdev=93.50 clat (msec): min=24, max=280, avg=155.55, stdev=40.00 lat (msec): min=25, max=280, avg=155.73, stdev=40.01 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 97], 10.00th=[ 106], 20.00th=[ 122], | 30.00th=[ 133], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 188], 90.00th=[ 209], 95.00th=[ 228], | 99.00th=[ 259], 99.50th=[ 264], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 208, max= 376, per=25.20%, avg=280.76, stdev=40.42, samples=37 iops : min= 52, max= 94, avg=70.16, stdev=10.12, samples=37 lat (msec) : 10=0.16%, 20=0.12%, 50=1.41%, 100=48.67%, 250=48.67% lat (msec) : 500=0.98% cpu : usr=0.23%, sys=2.33%, ctx=4823, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158318: Sat Jul 18 18:45:36 2026 read: IOPS=66, BW=266KiB/s (272kB/s)(4984KiB/18750msec) slat (usec): min=946, max=7304, avg=2380.91, stdev=814.99 clat (msec): min=2, max=123, avg=73.74, stdev=13.79 lat (msec): min=5, max=126, avg=76.13, stdev=13.93 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 64], | 30.00th=[ 67], 40.00th=[ 71], 50.00th=[ 73], 60.00th=[ 77], | 70.00th=[ 81], 80.00th=[ 85], 90.00th=[ 90], 95.00th=[ 97], | 99.00th=[ 109], 99.50th=[ 113], 99.90th=[ 123], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 168, max= 416, per=24.85%, avg=265.86, stdev=60.69, samples=37 iops : min= 42, max= 104, avg=66.43, stdev=15.16, samples=37 write: IOPS=70, BW=280KiB/s (287kB/s)(5256KiB/18750msec); 0 zone resets slat (usec): min=45, max=2472, avg=191.76, stdev=116.30 clat (msec): min=58, max=286, avg=155.49, stdev=39.49 lat (msec): min=58, max=287, avg=155.68, stdev=39.49 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 96], 10.00th=[ 107], 20.00th=[ 123], | 30.00th=[ 134], 40.00th=[ 142], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 186], 90.00th=[ 211], 95.00th=[ 228], | 99.00th=[ 259], 99.50th=[ 266], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 192, max= 368, per=25.06%, avg=279.22, stdev=40.93, samples=37 iops : min= 48, max= 92, avg=69.78, stdev=10.24, samples=37 lat (msec) : 4=0.12%, 20=0.20%, 50=0.90%, 100=49.10%, 250=48.67% lat (msec) : 500=1.02% cpu : usr=0.22%, sys=2.41%, ctx=4819, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=158319: Sat Jul 18 18:45:36 2026 read: IOPS=67, BW=272KiB/s (278kB/s)(5060KiB/18614msec) slat (usec): min=1025, max=6828, avg=2389.60, stdev=830.18 clat (msec): min=3, max=210, avg=73.61, stdev=16.01 lat (msec): min=5, max=213, avg=76.00, stdev=16.13 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 54], 10.00th=[ 58], 20.00th=[ 63], | 30.00th=[ 67], 40.00th=[ 70], 50.00th=[ 73], 60.00th=[ 77], | 70.00th=[ 80], 80.00th=[ 84], 90.00th=[ 90], 95.00th=[ 97], | 99.00th=[ 114], 99.50th=[ 133], 99.90th=[ 209], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 176, max= 352, per=25.58%, avg=273.72, stdev=50.17, samples=36 iops : min= 44, max= 88, avg=68.39, stdev=12.52, samples=36 write: IOPS=69, BW=278KiB/s (285kB/s)(5180KiB/18614msec); 0 zone resets slat (usec): min=55, max=1057, avg=192.44, stdev=98.52 clat (msec): min=53, max=292, avg=154.99, stdev=39.16 lat (msec): min=53, max=292, avg=155.18, stdev=39.16 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 96], 10.00th=[ 106], 20.00th=[ 122], | 30.00th=[ 134], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 188], 90.00th=[ 207], 95.00th=[ 226], | 99.00th=[ 257], 99.50th=[ 264], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 176, max= 352, per=24.96%, avg=278.00, stdev=44.62, samples=36 iops : min= 44, max= 88, avg=69.47, stdev=11.18, samples=36 lat (msec) : 4=0.04%, 10=0.04%, 20=0.31%, 50=1.05%, 100=49.96% lat (msec) : 250=47.62%, 500=0.98% cpu : usr=0.21%, sys=2.44%, ctx=4817, majf=0, minf=14 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1070KiB/s (1096kB/s), 266KiB/s-272KiB/s (272kB/s-278kB/s), io=19.6MiB (20.5MB), run=18614-18750msec WRITE: bw=1114KiB/s (1141kB/s), 277KiB/s-281KiB/s (284kB/s-288kB/s), io=20.4MiB (21.4MB), run=18614-18750msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=158325: Sat Jul 18 18:45:39 2026 read: IOPS=8, BW=331MiB/s (347MB/s)(40.0MiB/121msec) slat (nsec): min=9808.8k, max=9808.8k, avg=9808801.00, stdev= 0.00 clat (nsec): min=106000k, max=106000k, avg=105999842.00, stdev= 0.00 lat (nsec): min=115812k, max=115812k, avg=115812095.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 107], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 107], 60.00th=[ 107], | 70.00th=[ 107], 80.00th=[ 107], 90.00th=[ 107], 95.00th=[ 107], | 99.00th=[ 107], 99.50th=[ 107], 99.90th=[ 107], 99.95th=[ 107], | 99.99th=[ 107] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.50%, ctx=44, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=331MiB/s (347MB/s), 331MiB/s-331MiB/s (347MB/s-347MB/s), io=40.0MiB (41.9MB), run=121-121msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout