== sanity test 398c: run fio to test AIO ================= 14:31:03 (1780338663) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.445815 s, 94.1 MB/s osc.lustre-OST0000-osc-ffff88ad5234b000.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=179883: Mon Jun 1 14:31:47 2026 write: IOPS=82, BW=330KiB/s (338kB/s)(10.0MiB/31050msec); 0 zone resets slat (usec): min=38, max=17586, avg=400.08, stdev=1150.94 clat (msec): min=18, max=359, avg=193.48, stdev=55.62 lat (msec): min=18, max=359, avg=193.88, stdev=55.64 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 107], 10.00th=[ 122], 20.00th=[ 142], | 30.00th=[ 163], 40.00th=[ 178], 50.00th=[ 194], 60.00th=[ 209], | 70.00th=[ 224], 80.00th=[ 241], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 359] bw ( KiB/s): min= 190, max= 582, per=25.00%, avg=328.00, stdev=86.09, samples=61 iops : min= 47, max= 145, avg=81.59, stdev=21.56, samples=61 lat (msec) : 20=0.04%, 50=0.31%, 100=2.54%, 250=81.33%, 500=15.78% cpu : usr=0.18%, sys=1.33%, ctx=2813, 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=179884: Mon Jun 1 14:31:47 2026 write: IOPS=82, BW=329KiB/s (337kB/s)(10.0MiB/31134msec); 0 zone resets slat (usec): min=38, max=18924, avg=385.96, stdev=1146.88 clat (msec): min=13, max=360, avg=193.44, stdev=54.07 lat (msec): min=14, max=360, avg=193.82, stdev=54.05 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 110], 10.00th=[ 124], 20.00th=[ 144], | 30.00th=[ 161], 40.00th=[ 178], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 321], 99.50th=[ 330], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 176, max= 606, per=24.92%, avg=326.90, stdev=87.57, samples=61 iops : min= 44, max= 151, avg=81.30, stdev=21.94, samples=61 lat (msec) : 20=0.08%, 50=0.12%, 100=2.81%, 250=83.67%, 500=13.32% cpu : usr=0.14%, sys=1.36%, ctx=2454, 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=179885: Mon Jun 1 14:31:47 2026 write: IOPS=82, BW=328KiB/s (336kB/s)(10.0MiB/31181msec); 0 zone resets slat (usec): min=36, max=16520, avg=337.28, stdev=943.83 clat (msec): min=13, max=364, avg=193.67, stdev=53.28 lat (msec): min=13, max=364, avg=194.01, stdev=53.25 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 111], 10.00th=[ 126], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 363] bw ( KiB/s): min= 184, max= 566, per=24.83%, avg=325.74, stdev=83.35, samples=61 iops : min= 46, max= 141, avg=81.02, stdev=20.86, samples=61 lat (msec) : 20=0.04%, 50=0.16%, 100=2.07%, 250=83.52%, 500=14.22% cpu : usr=0.13%, sys=1.27%, ctx=2446, 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=179886: Mon Jun 1 14:31:47 2026 write: IOPS=82, BW=328KiB/s (336kB/s)(10.0MiB/31197msec); 0 zone resets slat (usec): min=37, max=15633, avg=372.14, stdev=1047.91 clat (msec): min=39, max=363, avg=193.64, stdev=53.75 lat (msec): min=39, max=363, avg=194.02, stdev=53.69 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 109], 10.00th=[ 125], 20.00th=[ 144], | 30.00th=[ 161], 40.00th=[ 178], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 224], 80.00th=[ 243], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 363] bw ( KiB/s): min= 215, max= 574, per=24.70%, avg=324.08, stdev=82.68, samples=61 iops : min= 53, max= 143, avg=80.61, stdev=20.67, samples=61 lat (msec) : 50=0.16%, 100=2.03%, 250=83.52%, 500=14.30% cpu : usr=0.19%, sys=1.16%, ctx=2426, 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=1313KiB/s (1344kB/s), 328KiB/s-330KiB/s (336kB/s-338kB/s), io=40.0MiB (41.9MB), run=31050-31197msec 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=179901: Mon Jun 1 14:32:35 2026 read: IOPS=33, BW=134KiB/s (137kB/s)(5048KiB/37688msec) slat (usec): min=2983, max=82674, avg=17319.75, stdev=9482.41 clat (msec): min=34, max=492, avg=221.99, stdev=57.90 lat (msec): min=61, max=521, avg=239.32, stdev=60.05 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 136], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 300], 95.00th=[ 321], | 99.00th=[ 384], 99.50th=[ 397], 99.90th=[ 472], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 63, max= 246, per=25.05%, avg=133.03, stdev=34.77, samples=74 iops : min= 15, max= 61, avg=32.73, stdev= 8.67, samples=74 write: IOPS=34, BW=138KiB/s (141kB/s)(5192KiB/37688msec); 0 zone resets slat (usec): min=47, max=19525, avg=479.89, stdev=1353.59 clat (msec): min=39, max=473, avg=227.57, stdev=56.16 lat (msec): min=39, max=473, avg=228.05, stdev=56.24 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 142], 10.00th=[ 159], 20.00th=[ 180], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 241], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 300], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 414], 99.90th=[ 447], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 54, max= 239, per=24.83%, avg=137.30, stdev=35.83, samples=74 iops : min= 13, max= 59, avg=33.80, stdev= 8.97, samples=74 lat (msec) : 50=0.08%, 100=0.55%, 250=68.44%, 500=30.94% cpu : usr=0.29%, sys=2.11%, ctx=3997, 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=179902: Mon Jun 1 14:32:35 2026 read: IOPS=32, BW=132KiB/s (135kB/s)(4976KiB/37720msec) slat (usec): min=3202, max=58538, avg=17371.27, stdev=9116.14 clat (msec): min=74, max=437, avg=225.06, stdev=57.79 lat (msec): min=84, max=474, avg=242.44, stdev=60.15 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 140], 10.00th=[ 157], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 207], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 397], 99.50th=[ 405], 99.90th=[ 426], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 41, max= 215, per=24.58%, avg=130.53, stdev=33.14, samples=74 iops : min= 10, max= 53, avg=32.09, stdev= 8.28, samples=74 write: IOPS=34, BW=140KiB/s (143kB/s)(5264KiB/37720msec); 0 zone resets slat (usec): min=44, max=14091, avg=406.57, stdev=982.47 clat (msec): min=94, max=449, avg=225.78, stdev=56.39 lat (msec): min=94, max=450, avg=226.19, stdev=56.37 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 178], | 30.00th=[ 194], 40.00th=[ 209], 50.00th=[ 226], 60.00th=[ 241], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 384], 99.50th=[ 409], 99.90th=[ 430], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 63, max= 238, per=25.17%, avg=139.22, stdev=39.17, samples=74 iops : min= 15, max= 59, avg=34.26, stdev= 9.80, samples=74 lat (msec) : 100=0.43%, 250=67.58%, 500=31.99% cpu : usr=0.25%, sys=1.87%, ctx=4050, 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=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=179903: Mon Jun 1 14:32:35 2026 read: IOPS=33, BW=132KiB/s (135kB/s)(4984KiB/37723msec) slat (usec): min=3948, max=78765, avg=17053.97, stdev=9376.06 clat (msec): min=42, max=425, avg=221.47, stdev=56.37 lat (msec): min=56, max=451, avg=238.53, stdev=58.77 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 134], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 247], 80.00th=[ 268], 90.00th=[ 300], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 388], 99.90th=[ 401], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 40, max= 215, per=24.74%, avg=131.35, stdev=35.23, samples=74 iops : min= 10, max= 53, avg=32.31, stdev= 8.80, samples=74 write: IOPS=34, BW=139KiB/s (143kB/s)(5256KiB/37723msec); 0 zone resets slat (usec): min=43, max=17702, avg=481.67, stdev=1251.71 clat (msec): min=94, max=432, avg=229.18, stdev=55.06 lat (msec): min=94, max=432, avg=229.67, stdev=55.04 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 144], 10.00th=[ 161], 20.00th=[ 182], | 30.00th=[ 201], 40.00th=[ 211], 50.00th=[ 228], 60.00th=[ 239], | 70.00th=[ 253], 80.00th=[ 275], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 388], 99.50th=[ 414], 99.90th=[ 426], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 55, max= 213, per=24.99%, avg=138.19, stdev=36.78, samples=74 iops : min= 13, max= 53, avg=34.03, stdev= 9.24, samples=74 lat (msec) : 50=0.04%, 100=0.39%, 250=69.34%, 500=30.23% cpu : usr=0.30%, sys=2.16%, ctx=4422, 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=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=179904: Mon Jun 1 14:32:35 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(5060KiB/37553msec) slat (usec): min=99, max=75974, avg=17228.86, stdev=9698.87 clat (msec): min=20, max=436, avg=222.59, stdev=58.37 lat (msec): min=23, max=473, avg=239.83, stdev=60.72 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 133], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 192], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 234], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 384], 99.50th=[ 397], 99.90th=[ 422], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 70, max= 200, per=25.28%, avg=134.23, stdev=29.72, samples=74 iops : min= 17, max= 50, avg=33.04, stdev= 7.44, samples=74 write: IOPS=34, BW=138KiB/s (141kB/s)(5180KiB/37553msec); 0 zone resets slat (usec): min=55, max=29678, avg=523.21, stdev=1559.07 clat (msec): min=49, max=472, avg=228.21, stdev=57.11 lat (msec): min=49, max=472, avg=228.74, stdev=57.15 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 146], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 226], 60.00th=[ 243], | 70.00th=[ 255], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 430], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 71, max= 287, per=24.83%, avg=137.30, stdev=38.32, samples=74 iops : min= 17, max= 71, avg=33.81, stdev= 9.59, samples=74 lat (msec) : 50=0.23%, 100=0.51%, 250=67.54%, 500=31.72% cpu : usr=0.23%, sys=1.96%, ctx=4335, 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=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=532KiB/s (545kB/s), 132KiB/s-135KiB/s (135kB/s-138kB/s), io=19.6MiB (20.5MB), run=37553-37723msec WRITE: bw=554KiB/s (567kB/s), 138KiB/s-140KiB/s (141kB/s-143kB/s), io=20.4MiB (21.4MB), run=37553-37723msec 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=179914: Mon Jun 1 14:32:47 2026 read: IOPS=1, BW=56.7MiB/s (59.4MB/s)(40.0MiB/706msec) slat (nsec): min=30152k, max=30152k, avg=30152375.00, stdev= 0.00 clat (nsec): min=624116k, max=624116k, avg=624115892.00, stdev= 0.00 lat (nsec): min=654273k, max=654273k, avg=654272776.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.99%, ctx=4, 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=56.7MiB/s (59.4MB/s), 56.7MiB/s-56.7MiB/s (59.4MB/s-59.4MB/s), io=40.0MiB (41.9MB), run=706-706msec 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