== sanity test 398c: run fio to test AIO ================= 18:32:35 (1781217155) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.584639 s, 71.7 MB/s osc.lustre-OST0000-osc-ffff8af9243c6800.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=179617: Thu Jun 11 18:33:12 2026 write: IOPS=98, BW=393KiB/s (403kB/s)(10.0MiB/26038msec); 0 zone resets slat (usec): min=36, max=15575, avg=246.03, stdev=653.15 clat (msec): min=23, max=295, avg=161.30, stdev=43.27 lat (msec): min=23, max=295, avg=161.55, stdev=43.28 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 99], 10.00th=[ 110], 20.00th=[ 125], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 197], 90.00th=[ 224], 95.00th=[ 251], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 296] bw ( KiB/s): min= 234, max= 640, per=25.05%, avg=394.10, stdev=98.76, samples=51 iops : min= 58, max= 160, avg=98.16, stdev=24.79, samples=51 lat (msec) : 50=0.08%, 100=5.39%, 250=89.57%, 500=4.96% cpu : usr=0.14%, sys=1.31%, ctx=2419, 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=179618: Thu Jun 11 18:33:12 2026 write: IOPS=98, BW=394KiB/s (403kB/s)(10.0MiB/26018msec); 0 zone resets slat (usec): min=39, max=18813, avg=313.08, stdev=854.87 clat (msec): min=18, max=349, avg=161.16, stdev=44.16 lat (msec): min=18, max=349, avg=161.48, stdev=44.17 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 99], 10.00th=[ 111], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 199], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 334], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 234, max= 640, per=25.07%, avg=394.39, stdev=101.38, samples=51 iops : min= 58, max= 160, avg=98.20, stdev=25.47, samples=51 lat (msec) : 20=0.08%, 50=0.12%, 100=5.43%, 250=90.51%, 500=3.87% cpu : usr=0.22%, sys=1.33%, ctx=2679, 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=179619: Thu Jun 11 18:33:12 2026 write: IOPS=98, BW=393KiB/s (403kB/s)(10.0MiB/26029msec); 0 zone resets slat (usec): min=44, max=17777, avg=310.74, stdev=910.55 clat (msec): min=49, max=380, avg=162.08, stdev=44.12 lat (msec): min=49, max=380, avg=162.39, stdev=44.14 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 100], 10.00th=[ 110], 20.00th=[ 125], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 197], 90.00th=[ 226], 95.00th=[ 249], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 326], 99.95th=[ 342], | 99.99th=[ 380] bw ( KiB/s): min= 254, max= 637, per=25.08%, avg=394.49, stdev=98.18, samples=51 iops : min= 63, max= 159, avg=98.24, stdev=24.65, samples=51 lat (msec) : 50=0.04%, 100=5.31%, 250=89.73%, 500=4.92% cpu : usr=0.17%, sys=1.31%, ctx=2691, 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=179620: Thu Jun 11 18:33:12 2026 write: IOPS=98, BW=395KiB/s (404kB/s)(10.0MiB/25940msec); 0 zone resets slat (usec): min=38, max=14995, avg=291.18, stdev=730.42 clat (msec): min=24, max=326, avg=160.87, stdev=44.14 lat (msec): min=25, max=326, avg=161.16, stdev=44.16 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 96], 10.00th=[ 110], 20.00th=[ 125], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 197], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 254, max= 621, per=25.17%, avg=395.98, stdev=94.51, samples=51 iops : min= 63, max= 155, avg=98.61, stdev=23.72, samples=51 lat (msec) : 50=0.20%, 100=5.94%, 250=89.88%, 500=3.98% cpu : usr=0.19%, sys=1.35%, ctx=2881, 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=1573KiB/s (1611kB/s), 393KiB/s-395KiB/s (403kB/s-404kB/s), io=40.0MiB (41.9MB), run=25940-26038msec 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=179635: Thu Jun 11 18:33:49 2026 read: IOPS=43, BW=175KiB/s (179kB/s)(5048KiB/28851msec) slat (usec): min=2968, max=58110, avg=12740.47, stdev=7052.50 clat (msec): min=38, max=447, avg=170.92, stdev=49.12 lat (msec): min=52, max=468, avg=183.66, stdev=51.09 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 100], 10.00th=[ 113], 20.00th=[ 130], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 209], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 321], 99.50th=[ 347], 99.90th=[ 418], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 92, max= 268, per=24.98%, avg=173.58, stdev=43.94, samples=57 iops : min= 23, max= 67, avg=42.88, stdev=10.98, samples=57 write: IOPS=44, BW=180KiB/s (184kB/s)(5192KiB/28851msec); 0 zone resets slat (usec): min=47, max=11204, avg=331.26, stdev=787.03 clat (msec): min=39, max=406, avg=174.06, stdev=46.90 lat (msec): min=39, max=406, avg=174.39, stdev=46.94 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 107], 10.00th=[ 116], 20.00th=[ 131], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 313], 99.50th=[ 334], 99.90th=[ 384], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 92, max= 335, per=24.77%, avg=179.35, stdev=51.35, samples=57 iops : min= 23, max= 83, avg=44.32, stdev=12.84, samples=57 lat (msec) : 50=0.08%, 100=4.22%, 250=90.23%, 500=5.47% cpu : usr=0.29%, sys=2.26%, ctx=4672, 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=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=179636: Thu Jun 11 18:33:49 2026 read: IOPS=43, BW=173KiB/s (177kB/s)(4976KiB/28788msec) slat (usec): min=3278, max=56430, avg=13286.72, stdev=7077.00 clat (msec): min=16, max=384, avg=170.57, stdev=47.37 lat (msec): min=28, max=408, avg=183.86, stdev=49.21 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 102], 10.00th=[ 115], 20.00th=[ 130], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 363], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 91, max= 294, per=24.68%, avg=171.51, stdev=42.87, samples=57 iops : min= 22, max= 73, avg=42.35, stdev=10.75, samples=57 write: IOPS=45, BW=183KiB/s (187kB/s)(5264KiB/28788msec); 0 zone resets slat (usec): min=40, max=12802, avg=342.37, stdev=856.47 clat (msec): min=32, max=342, avg=173.79, stdev=45.63 lat (msec): min=32, max=342, avg=174.13, stdev=45.62 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 108], 10.00th=[ 117], 20.00th=[ 132], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 255], | 99.00th=[ 300], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 78, max= 330, per=25.16%, avg=182.16, stdev=50.76, samples=57 iops : min= 19, max= 82, avg=45.02, stdev=12.72, samples=57 lat (msec) : 20=0.04%, 50=0.12%, 100=3.52%, 250=90.82%, 500=5.51% cpu : usr=0.26%, sys=2.69%, ctx=4547, 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=179637: Thu Jun 11 18:33:49 2026 read: IOPS=43, BW=174KiB/s (178kB/s)(4984KiB/28686msec) slat (usec): min=102, max=68387, avg=12721.64, stdev=6804.36 clat (msec): min=16, max=361, avg=169.90, stdev=45.78 lat (msec): min=16, max=384, avg=182.63, stdev=47.83 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 104], 10.00th=[ 115], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 330], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 95, max= 301, per=24.83%, avg=172.57, stdev=48.46, samples=56 iops : min= 23, max= 75, avg=42.61, stdev=12.20, samples=56 write: IOPS=45, BW=183KiB/s (188kB/s)(5256KiB/28686msec); 0 zone resets slat (usec): min=39, max=13428, avg=374.54, stdev=974.74 clat (msec): min=63, max=362, avg=175.25, stdev=44.15 lat (msec): min=63, max=363, avg=175.63, stdev=44.12 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 109], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 215], 90.00th=[ 232], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 87, max= 282, per=25.01%, avg=181.05, stdev=41.41, samples=56 iops : min= 21, max= 70, avg=44.75, stdev=10.30, samples=56 lat (msec) : 20=0.04%, 50=0.12%, 100=2.89%, 250=91.64%, 500=5.31% cpu : usr=0.28%, sys=2.36%, ctx=4481, 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=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=179638: Thu Jun 11 18:33:49 2026 read: IOPS=43, BW=175KiB/s (180kB/s)(5060KiB/28849msec) slat (usec): min=2863, max=64738, avg=13142.01, stdev=7107.49 clat (msec): min=61, max=350, avg=169.85, stdev=44.57 lat (msec): min=65, max=359, avg=183.00, stdev=46.75 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 105], 10.00th=[ 114], 20.00th=[ 130], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 230], 95.00th=[ 251], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 78, max= 298, per=25.14%, avg=174.75, stdev=44.55, samples=57 iops : min= 19, max= 74, avg=43.16, stdev=11.17, samples=57 write: IOPS=44, BW=180KiB/s (184kB/s)(5180KiB/28849msec); 0 zone resets slat (usec): min=49, max=7472, avg=318.03, stdev=650.50 clat (msec): min=28, max=369, avg=174.55, stdev=46.59 lat (msec): min=28, max=369, avg=174.87, stdev=46.59 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 106], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 232], 95.00th=[ 257], | 99.00th=[ 309], 99.50th=[ 330], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 92, max= 302, per=24.63%, avg=178.35, stdev=49.23, samples=57 iops : min= 23, max= 75, avg=44.07, stdev=12.29, samples=57 lat (msec) : 50=0.04%, 100=3.55%, 250=90.62%, 500=5.78% cpu : usr=0.35%, sys=2.34%, ctx=4613, 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=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=696KiB/s (712kB/s), 173KiB/s-175KiB/s (177kB/s-180kB/s), io=19.6MiB (20.5MB), run=28686-28851msec WRITE: bw=724KiB/s (742kB/s), 180KiB/s-183KiB/s (184kB/s-188kB/s), io=20.4MiB (21.4MB), run=28686-28851msec 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=179647: Thu Jun 11 18:33:58 2026 read: IOPS=1, BW=67.6MiB/s (70.8MB/s)(40.0MiB/592msec) slat (nsec): min=37891k, max=37891k, avg=37891398.00, stdev= 0.00 clat (nsec): min=520821k, max=520821k, avg=520821266.00, stdev= 0.00 lat (nsec): min=558717k, max=558717k, avg=558717100.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] lat (msec) : 750=100.00% cpu : usr=0.17%, sys=2.03%, ctx=7, 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=67.6MiB/s (70.8MB/s), 67.6MiB/s-67.6MiB/s (70.8MB/s-70.8MB/s), io=40.0MiB (41.9MB), run=592-592msec 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