== sanity test 398c: run fio to test AIO ================= 12:13:32 (1781280812) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.536758 s, 78.1 MB/s osc.lustre-OST0000-osc-ffff9109439e8000.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=179929: Fri Jun 12 12:14:19 2026 write: IOPS=65, BW=264KiB/s (270kB/s)(10.0MiB/38846msec); 0 zone resets slat (usec): min=37, max=23085, avg=343.87, stdev=1038.35 clat (msec): min=35, max=564, avg=242.21, stdev=75.22 lat (msec): min=35, max=564, avg=242.55, stdev=75.21 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 128], 10.00th=[ 148], 20.00th=[ 178], | 30.00th=[ 201], 40.00th=[ 220], 50.00th=[ 239], 60.00th=[ 259], | 70.00th=[ 275], 80.00th=[ 305], 90.00th=[ 338], 95.00th=[ 376], | 99.00th=[ 439], 99.50th=[ 481], 99.90th=[ 527], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 95, max= 504, per=25.07%, avg=263.51, stdev=78.87, samples=76 iops : min= 23, max= 126, avg=65.47, stdev=19.78, samples=76 lat (msec) : 50=0.08%, 100=1.29%, 250=55.43%, 500=42.77%, 750=0.43% cpu : usr=0.13%, sys=1.02%, ctx=2251, 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=179930: Fri Jun 12 12:14:19 2026 write: IOPS=65, BW=263KiB/s (269kB/s)(10.0MiB/38971msec); 0 zone resets slat (usec): min=48, max=28394, avg=385.05, stdev=1416.99 clat (msec): min=44, max=483, avg=242.47, stdev=74.50 lat (msec): min=44, max=483, avg=242.85, stdev=74.52 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 132], 10.00th=[ 153], 20.00th=[ 182], | 30.00th=[ 199], 40.00th=[ 213], 50.00th=[ 236], 60.00th=[ 257], | 70.00th=[ 279], 80.00th=[ 305], 90.00th=[ 338], 95.00th=[ 380], | 99.00th=[ 435], 99.50th=[ 443], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 124, max= 449, per=24.87%, avg=261.38, stdev=68.39, samples=77 iops : min= 31, max= 112, avg=64.95, stdev=17.14, samples=77 lat (msec) : 50=0.04%, 100=1.25%, 250=55.51%, 500=43.20% cpu : usr=0.15%, sys=1.11%, ctx=2058, 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=179931: Fri Jun 12 12:14:19 2026 write: IOPS=65, BW=263KiB/s (269kB/s)(10.0MiB/38970msec); 0 zone resets slat (usec): min=52, max=16221, avg=390.21, stdev=1117.14 clat (msec): min=35, max=569, avg=242.38, stdev=74.94 lat (msec): min=35, max=569, avg=242.77, stdev=74.92 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 134], 10.00th=[ 150], 20.00th=[ 176], | 30.00th=[ 197], 40.00th=[ 220], 50.00th=[ 236], 60.00th=[ 259], | 70.00th=[ 279], 80.00th=[ 300], 90.00th=[ 338], 95.00th=[ 376], | 99.00th=[ 435], 99.50th=[ 481], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 127, max= 496, per=24.89%, avg=261.58, stdev=70.94, samples=77 iops : min= 31, max= 124, avg=64.97, stdev=17.80, samples=77 lat (msec) : 50=0.16%, 100=0.70%, 250=55.43%, 500=43.44%, 750=0.27% cpu : usr=0.16%, sys=1.08%, ctx=2474, 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=179932: Fri Jun 12 12:14:19 2026 write: IOPS=65, BW=263KiB/s (269kB/s)(10.0MiB/38953msec); 0 zone resets slat (usec): min=39, max=50072, avg=389.70, stdev=1658.72 clat (msec): min=14, max=512, avg=242.33, stdev=75.82 lat (msec): min=21, max=512, avg=242.72, stdev=75.80 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 131], 10.00th=[ 146], 20.00th=[ 176], | 30.00th=[ 194], 40.00th=[ 218], 50.00th=[ 239], 60.00th=[ 259], | 70.00th=[ 279], 80.00th=[ 305], 90.00th=[ 342], 95.00th=[ 380], | 99.00th=[ 435], 99.50th=[ 468], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 514] bw ( KiB/s): min= 151, max= 520, per=24.89%, avg=261.60, stdev=68.84, samples=77 iops : min= 37, max= 130, avg=64.99, stdev=17.24, samples=77 lat (msec) : 20=0.04%, 50=0.12%, 100=0.86%, 250=56.02%, 500=42.93% lat (msec) : 750=0.04% cpu : usr=0.18%, sys=1.18%, ctx=2258, 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=1051KiB/s (1076kB/s), 263KiB/s-264KiB/s (269kB/s-270kB/s), io=40.0MiB (41.9MB), run=38846-38971msec 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=179948: Fri Jun 12 12:15:09 2026 read: IOPS=32, BW=130KiB/s (134kB/s)(5048KiB/38687msec) slat (usec): min=2663, max=63121, avg=17230.71, stdev=9274.01 clat (msec): min=42, max=484, avg=227.79, stdev=51.33 lat (msec): min=56, max=503, avg=245.02, stdev=53.17 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 157], 10.00th=[ 169], 20.00th=[ 184], | 30.00th=[ 199], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 234], | 70.00th=[ 251], 80.00th=[ 266], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 380], 99.50th=[ 422], 99.90th=[ 468], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 79, max= 200, per=25.07%, avg=129.88, stdev=26.80, samples=76 iops : min= 19, max= 50, avg=32.01, stdev= 6.77, samples=76 write: IOPS=33, BW=134KiB/s (137kB/s)(5192KiB/38687msec); 0 zone resets slat (usec): min=53, max=17320, avg=374.73, stdev=918.25 clat (msec): min=115, max=427, avg=235.35, stdev=45.74 lat (msec): min=116, max=427, avg=235.73, stdev=45.71 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 167], 10.00th=[ 180], 20.00th=[ 197], | 30.00th=[ 209], 40.00th=[ 222], 50.00th=[ 232], 60.00th=[ 245], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 71, max= 215, per=24.84%, avg=133.87, stdev=28.66, samples=76 iops : min= 17, max= 53, avg=33.00, stdev= 7.18, samples=76 lat (msec) : 50=0.08%, 100=0.04%, 250=67.42%, 500=32.46% cpu : usr=0.23%, sys=1.70%, ctx=4206, 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=179949: Fri Jun 12 12:15:09 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(4976KiB/38584msec) slat (usec): min=100, max=63866, avg=17362.39, stdev=9289.29 clat (msec): min=31, max=401, avg=229.68, stdev=48.65 lat (msec): min=32, max=421, avg=247.05, stdev=50.42 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 159], 10.00th=[ 171], 20.00th=[ 190], | 30.00th=[ 203], 40.00th=[ 215], 50.00th=[ 226], 60.00th=[ 239], | 70.00th=[ 251], 80.00th=[ 271], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 355], 99.50th=[ 372], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 79, max= 216, per=24.80%, avg=128.47, stdev=28.93, samples=76 iops : min= 19, max= 54, avg=31.66, stdev= 7.35, samples=76 write: IOPS=34, BW=136KiB/s (140kB/s)(5264KiB/38584msec); 0 zone resets slat (usec): min=55, max=13124, avg=430.91, stdev=1098.19 clat (msec): min=75, max=456, avg=234.47, stdev=44.19 lat (msec): min=75, max=456, avg=234.91, stdev=44.25 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 169], 10.00th=[ 182], 20.00th=[ 199], | 30.00th=[ 211], 40.00th=[ 222], 50.00th=[ 232], 60.00th=[ 243], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 292], 95.00th=[ 309], | 99.00th=[ 351], 99.50th=[ 372], 99.90th=[ 443], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 72, max= 223, per=25.21%, avg=135.87, stdev=31.19, samples=76 iops : min= 18, max= 55, avg=33.51, stdev= 7.77, samples=76 lat (msec) : 50=0.08%, 100=0.12%, 250=67.03%, 500=32.77% cpu : usr=0.24%, sys=1.81%, ctx=4201, 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=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=179950: Fri Jun 12 12:15:09 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(4984KiB/38640msec) slat (usec): min=3121, max=67671, avg=17251.55, stdev=9105.79 clat (msec): min=45, max=473, avg=228.66, stdev=48.58 lat (msec): min=64, max=484, avg=245.92, stdev=49.97 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 159], 10.00th=[ 171], 20.00th=[ 188], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 226], 60.00th=[ 239], | 70.00th=[ 251], 80.00th=[ 271], 90.00th=[ 292], 95.00th=[ 309], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 464], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 55, max= 192, per=24.95%, avg=129.22, stdev=30.78, samples=76 iops : min= 13, max= 48, avg=31.86, stdev= 7.78, samples=76 write: IOPS=34, BW=136KiB/s (139kB/s)(5256KiB/38640msec); 0 zone resets slat (usec): min=42, max=13060, avg=429.16, stdev=1067.37 clat (msec): min=27, max=415, avg=234.07, stdev=45.89 lat (msec): min=29, max=416, avg=234.51, stdev=45.91 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 163], 10.00th=[ 178], 20.00th=[ 197], | 30.00th=[ 209], 40.00th=[ 220], 50.00th=[ 232], 60.00th=[ 245], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 359], 99.50th=[ 384], 99.90th=[ 397], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 72, max= 222, per=25.12%, avg=135.42, stdev=30.02, samples=76 iops : min= 18, max= 55, avg=33.39, stdev= 7.47, samples=76 lat (msec) : 50=0.08%, 100=0.12%, 250=67.73%, 500=32.07% cpu : usr=0.24%, sys=1.68%, ctx=4313, 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=179951: Fri Jun 12 12:15:09 2026 read: IOPS=32, BW=131KiB/s (134kB/s)(5060KiB/38706msec) slat (usec): min=3635, max=66644, avg=17516.11, stdev=9210.84 clat (msec): min=30, max=409, avg=228.15, stdev=48.78 lat (msec): min=62, max=418, avg=245.67, stdev=50.17 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 159], 10.00th=[ 169], 20.00th=[ 188], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 224], 60.00th=[ 234], | 70.00th=[ 251], 80.00th=[ 268], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 355], 99.50th=[ 372], 99.90th=[ 397], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 71, max= 191, per=25.18%, avg=130.41, stdev=27.66, samples=76 iops : min= 17, max= 47, avg=32.14, stdev= 6.94, samples=76 write: IOPS=33, BW=134KiB/s (137kB/s)(5180KiB/38706msec); 0 zone resets slat (usec): min=57, max=25009, avg=447.52, stdev=1417.72 clat (msec): min=107, max=446, avg=235.71, stdev=48.27 lat (msec): min=107, max=446, avg=236.16, stdev=48.30 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 169], 10.00th=[ 180], 20.00th=[ 194], | 30.00th=[ 207], 40.00th=[ 220], 50.00th=[ 230], 60.00th=[ 245], | 70.00th=[ 259], 80.00th=[ 275], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 368], 99.50th=[ 376], 99.90th=[ 388], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 71, max= 223, per=24.67%, avg=132.99, stdev=25.38, samples=76 iops : min= 17, max= 55, avg=32.79, stdev= 6.39, samples=76 lat (msec) : 50=0.04%, 250=67.34%, 500=32.62% cpu : usr=0.24%, sys=1.78%, ctx=4260, 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=518KiB/s (531kB/s), 129KiB/s-131KiB/s (132kB/s-134kB/s), io=19.6MiB (20.5MB), run=38584-38706msec WRITE: bw=540KiB/s (553kB/s), 134KiB/s-136KiB/s (137kB/s-140kB/s), io=20.4MiB (21.4MB), run=38584-38706msec 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=179961: Fri Jun 12 12:15:20 2026 read: IOPS=2, BW=87.3MiB/s (91.6MB/s)(40.0MiB/458msec) slat (nsec): min=33387k, max=33387k, avg=33386799.00, stdev= 0.00 clat (nsec): min=396607k, max=396607k, avg=396606862.00, stdev= 0.00 lat (nsec): min=430000k, max=430000k, avg=429999600.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.41%, ctx=13, majf=0, minf=9 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=87.3MiB/s (91.6MB/s), 87.3MiB/s-87.3MiB/s (91.6MB/s-91.6MB/s), io=40.0MiB (41.9MB), run=458-458msec 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