== sanity test 398c: run fio to test AIO ================= 11:15:06 (1782227706) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.50111 s, 83.7 MB/s osc.lustre-OST0000-osc-ffff9e2c1095b800.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=179853: Tue Jun 23 11:15:42 2026 write: IOPS=97, BW=390KiB/s (399kB/s)(10.0MiB/26276msec); 0 zone resets slat (usec): min=51, max=19611, avg=358.67, stdev=854.39 clat (msec): min=7, max=374, avg=163.56, stdev=38.34 lat (msec): min=10, max=374, avg=163.92, stdev=38.34 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 105], 10.00th=[ 118], 20.00th=[ 136], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 268], 99.50th=[ 271], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 376] bw ( KiB/s): min= 255, max= 686, per=25.01%, avg=389.37, stdev=82.28, samples=52 iops : min= 63, max= 171, avg=96.87, stdev=20.63, samples=52 lat (msec) : 10=0.04%, 50=0.08%, 100=3.20%, 250=94.30%, 500=2.38% cpu : usr=0.19%, sys=1.37%, ctx=2874, majf=0, minf=11 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=179854: Tue Jun 23 11:15:42 2026 write: IOPS=97, BW=389KiB/s (399kB/s)(10.0MiB/26296msec); 0 zone resets slat (usec): min=50, max=18777, avg=380.83, stdev=1012.79 clat (msec): min=22, max=318, avg=163.77, stdev=38.75 lat (msec): min=22, max=319, avg=164.15, stdev=38.73 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 108], 10.00th=[ 120], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 268], 99.50th=[ 268], 99.90th=[ 284], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 255, max= 750, per=24.94%, avg=388.38, stdev=82.59, samples=52 iops : min= 63, max= 187, avg=96.62, stdev=20.70, samples=52 lat (msec) : 50=0.04%, 100=3.91%, 250=92.70%, 500=3.36% cpu : usr=0.18%, sys=1.42%, ctx=2837, majf=0, minf=11 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=179855: Tue Jun 23 11:15:42 2026 write: IOPS=97, BW=389KiB/s (399kB/s)(10.0MiB/26294msec); 0 zone resets slat (usec): min=43, max=15518, avg=366.83, stdev=943.59 clat (msec): min=17, max=292, avg=163.84, stdev=38.83 lat (msec): min=18, max=292, avg=164.22, stdev=38.83 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 106], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 215], 95.00th=[ 239], | 99.00th=[ 268], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 263, max= 678, per=24.95%, avg=388.54, stdev=77.92, samples=52 iops : min= 65, max= 169, avg=96.65, stdev=19.56, samples=52 lat (msec) : 20=0.04%, 50=0.08%, 100=4.06%, 250=92.70%, 500=3.12% cpu : usr=0.27%, sys=1.47%, ctx=2752, 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=179856: Tue Jun 23 11:15:42 2026 write: IOPS=97, BW=390KiB/s (399kB/s)(10.0MiB/26266msec); 0 zone resets slat (usec): min=50, max=13900, avg=373.76, stdev=906.94 clat (msec): min=23, max=379, avg=163.65, stdev=40.53 lat (msec): min=26, max=379, avg=164.03, stdev=40.49 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 104], 10.00th=[ 121], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 380] bw ( KiB/s): min= 254, max= 662, per=25.02%, avg=389.50, stdev=77.16, samples=52 iops : min= 63, max= 165, avg=96.90, stdev=19.35, samples=52 lat (msec) : 50=0.12%, 100=4.22%, 250=92.23%, 500=3.44% cpu : usr=0.16%, sys=1.53%, ctx=2654, 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 Run status group 0 (all jobs): WRITE: bw=1558KiB/s (1595kB/s), 389KiB/s-390KiB/s (399kB/s-399kB/s), io=40.0MiB (41.9MB), run=26266-26296msec 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=179870: Tue Jun 23 11:16:23 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(5048KiB/31875msec) slat (usec): min=2823, max=52749, avg=14568.38, stdev=7550.88 clat (msec): min=86, max=337, avg=187.13, stdev=41.08 lat (msec): min=97, max=370, avg=201.70, stdev=42.36 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 127], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 262], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 93, max= 222, per=25.07%, avg=157.41, stdev=31.31, samples=63 iops : min= 23, max= 55, avg=38.87, stdev= 7.85, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5192KiB/31875msec); 0 zone resets slat (usec): min=55, max=16389, avg=362.60, stdev=751.80 clat (msec): min=36, max=398, avg=193.78, stdev=40.07 lat (msec): min=37, max=398, avg=194.15, stdev=40.03 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 136], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 80, max= 248, per=24.84%, avg=162.21, stdev=39.00, samples=63 iops : min= 20, max= 62, avg=40.06, stdev= 9.80, samples=63 lat (msec) : 50=0.04%, 100=0.20%, 250=91.09%, 500=8.67% cpu : usr=0.28%, sys=2.30%, ctx=4577, 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=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=179871: Tue Jun 23 11:16:23 2026 read: IOPS=39, BW=157KiB/s (160kB/s)(4976KiB/31795msec) slat (usec): min=3021, max=52853, avg=14125.13, stdev=7040.25 clat (msec): min=27, max=380, avg=187.00, stdev=44.40 lat (msec): min=41, max=400, avg=201.14, stdev=45.68 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 313], 99.50th=[ 334], 99.90th=[ 351], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 79, max= 248, per=24.88%, avg=156.27, stdev=38.48, samples=62 iops : min= 19, max= 62, avg=38.58, stdev= 9.71, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5264KiB/31795msec); 0 zone resets slat (usec): min=53, max=14543, avg=403.69, stdev=994.37 clat (msec): min=43, max=424, avg=194.32, stdev=42.04 lat (msec): min=44, max=424, avg=194.73, stdev=42.00 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 136], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 300], 99.50th=[ 321], 99.90th=[ 401], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 103, max= 263, per=25.45%, avg=166.16, stdev=34.13, samples=62 iops : min= 25, max= 65, avg=41.06, stdev= 8.53, samples=62 lat (msec) : 50=0.16%, 100=0.31%, 250=89.88%, 500=9.65% cpu : usr=0.25%, sys=2.21%, ctx=4405, 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=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=179872: Tue Jun 23 11:16:23 2026 read: IOPS=38, BW=156KiB/s (160kB/s)(4984KiB/31955msec) slat (usec): min=3086, max=64476, avg=14532.86, stdev=7558.22 clat (msec): min=49, max=337, avg=187.44, stdev=41.51 lat (msec): min=64, max=357, avg=201.98, stdev=42.37 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 79, max= 248, per=24.72%, avg=155.27, stdev=36.40, samples=63 iops : min= 19, max= 62, avg=38.30, stdev= 9.12, samples=63 write: IOPS=41, BW=164KiB/s (168kB/s)(5256KiB/31955msec); 0 zone resets slat (usec): min=52, max=13186, avg=420.77, stdev=960.70 clat (msec): min=49, max=342, avg=194.93, stdev=39.71 lat (msec): min=49, max=343, avg=195.35, stdev=39.70 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 79, max= 232, per=24.96%, avg=162.97, stdev=35.44, samples=63 iops : min= 19, max= 58, avg=40.24, stdev= 8.95, samples=63 lat (msec) : 50=0.12%, 100=0.59%, 250=91.13%, 500=8.16% cpu : usr=0.24%, sys=2.11%, ctx=4473, 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=179873: Tue Jun 23 11:16:23 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(5060KiB/31765msec) slat (usec): min=67, max=53590, avg=14336.79, stdev=7269.27 clat (msec): min=16, max=359, avg=187.67, stdev=44.73 lat (msec): min=23, max=383, avg=202.02, stdev=45.78 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 126], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 249], 95.00th=[ 268], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 63, max= 248, per=25.37%, avg=159.35, stdev=36.35, samples=62 iops : min= 15, max= 62, avg=39.34, stdev= 9.15, samples=62 write: IOPS=40, BW=163KiB/s (167kB/s)(5180KiB/31765msec); 0 zone resets slat (usec): min=57, max=11308, avg=360.94, stdev=774.69 clat (msec): min=67, max=433, avg=194.15, stdev=41.29 lat (msec): min=69, max=434, avg=194.52, stdev=41.24 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 134], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 268], | 99.00th=[ 313], 99.50th=[ 338], 99.90th=[ 393], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 92, max= 240, per=24.95%, avg=162.95, stdev=33.93, samples=62 iops : min= 23, max= 60, avg=40.26, stdev= 8.46, samples=62 lat (msec) : 20=0.04%, 50=0.27%, 100=0.47%, 250=89.73%, 500=9.49% cpu : usr=0.26%, sys=1.98%, ctx=4391, 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=628KiB/s (643kB/s), 156KiB/s-159KiB/s (160kB/s-163kB/s), io=19.6MiB (20.5MB), run=31765-31955msec WRITE: bw=654KiB/s (669kB/s), 163KiB/s-166KiB/s (167kB/s-170kB/s), io=20.4MiB (21.4MB), run=31765-31955msec 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=179882: Tue Jun 23 11:16:33 2026 read: IOPS=2, BW=85.3MiB/s (89.4MB/s)(40.0MiB/469msec) slat (nsec): min=37341k, max=37341k, avg=37340949.00, stdev= 0.00 clat (nsec): min=399987k, max=399987k, avg=399987372.00, stdev= 0.00 lat (nsec): min=437333k, max=437333k, avg=437333396.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.99%, ctx=6, majf=0, minf=10 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=85.3MiB/s (89.4MB/s), 85.3MiB/s-85.3MiB/s (89.4MB/s-89.4MB/s), io=40.0MiB (41.9MB), run=469-469msec 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