== sanity test 398c: run fio to test AIO ================= 08:37:10 (1787402230) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.622392 s, 67.4 MB/s osc.lustre-OST0000-osc-ffff9a4b3217c800.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=179051: Sat Aug 22 08:37:52 2026 write: IOPS=84, BW=336KiB/s (344kB/s)(10.0MiB/30443msec); 0 zone resets slat (usec): min=35, max=11206, avg=255.43, stdev=729.90 clat (msec): min=31, max=330, avg=189.20, stdev=47.19 lat (msec): min=32, max=330, avg=189.46, stdev=47.18 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 116], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 228], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 187, max= 650, per=24.95%, avg=335.57, stdev=75.71, samples=60 iops : min= 46, max= 162, avg=83.43, stdev=18.94, samples=60 lat (msec) : 50=0.12%, 100=2.46%, 250=87.23%, 500=10.20% cpu : usr=0.12%, sys=1.03%, ctx=2428, 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=179052: Sat Aug 22 08:37:52 2026 write: IOPS=84, BW=337KiB/s (345kB/s)(10.0MiB/30416msec); 0 zone resets slat (usec): min=34, max=15726, avg=258.37, stdev=777.10 clat (msec): min=33, max=328, avg=189.22, stdev=47.33 lat (msec): min=33, max=328, avg=189.48, stdev=47.35 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 118], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 207, max= 642, per=24.98%, avg=335.97, stdev=71.36, samples=60 iops : min= 51, max= 160, avg=83.52, stdev=17.85, samples=60 lat (msec) : 50=0.16%, 100=2.58%, 250=87.50%, 500=9.77% cpu : usr=0.13%, sys=1.00%, ctx=2473, 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=179053: Sat Aug 22 08:37:52 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30304msec); 0 zone resets slat (usec): min=41, max=25584, avg=322.38, stdev=981.13 clat (msec): min=22, max=382, avg=188.85, stdev=49.23 lat (msec): min=22, max=382, avg=189.18, stdev=49.26 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 115], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 384] bw ( KiB/s): min= 175, max= 682, per=25.05%, avg=336.92, stdev=79.46, samples=60 iops : min= 43, max= 170, avg=83.78, stdev=19.87, samples=60 lat (msec) : 50=0.16%, 100=3.32%, 250=85.35%, 500=11.17% cpu : usr=0.17%, sys=1.20%, ctx=2959, 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=179054: Sat Aug 22 08:37:52 2026 write: IOPS=84, BW=336KiB/s (344kB/s)(10.0MiB/30438msec); 0 zone resets slat (usec): min=36, max=11505, avg=265.64, stdev=750.86 clat (msec): min=28, max=331, avg=189.01, stdev=47.43 lat (msec): min=28, max=331, avg=189.28, stdev=47.47 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 255], 95.00th=[ 271], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 334] bw ( KiB/s): min= 151, max= 650, per=24.81%, avg=333.63, stdev=78.48, samples=60 iops : min= 37, max= 162, avg=82.95, stdev=19.61, samples=60 lat (msec) : 50=0.39%, 100=2.19%, 250=86.02%, 500=11.41% cpu : usr=0.15%, sys=0.92%, ctx=1977, 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 Run status group 0 (all jobs): WRITE: bw=1345KiB/s (1378kB/s), 336KiB/s-338KiB/s (344kB/s-346kB/s), io=40.0MiB (41.9MB), run=30304-30443msec 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=179069: Sat Aug 22 08:38:34 2026 read: IOPS=37, BW=151KiB/s (155kB/s)(5048KiB/33452msec) slat (usec): min=2334, max=76513, avg=14715.31, stdev=9099.59 clat (msec): min=14, max=429, avg=196.93, stdev=57.65 lat (msec): min=22, max=460, avg=211.66, stdev=60.62 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 109], 10.00th=[ 124], 20.00th=[ 146], | 30.00th=[ 165], 40.00th=[ 180], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 224], 80.00th=[ 243], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 347], 99.50th=[ 368], 99.90th=[ 393], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 56, max= 280, per=25.08%, avg=150.24, stdev=43.67, samples=66 iops : min= 14, max= 70, avg=37.08, stdev=10.99, samples=66 write: IOPS=38, BW=155KiB/s (159kB/s)(5192KiB/33452msec); 0 zone resets slat (usec): min=43, max=21454, avg=320.87, stdev=1057.46 clat (msec): min=76, max=447, avg=203.78, stdev=57.91 lat (msec): min=76, max=448, avg=204.10, stdev=57.93 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 111], 10.00th=[ 130], 20.00th=[ 155], | 30.00th=[ 171], 40.00th=[ 186], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 347], 99.50th=[ 363], 99.90th=[ 414], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 55, max= 286, per=24.83%, avg=154.91, stdev=46.52, samples=66 iops : min= 13, max= 71, avg=38.24, stdev=11.63, samples=66 lat (msec) : 20=0.04%, 100=2.19%, 250=78.40%, 500=19.38% cpu : usr=0.26%, sys=1.67%, ctx=4483, 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=179070: Sat Aug 22 08:38:34 2026 read: IOPS=37, BW=149KiB/s (152kB/s)(4976KiB/33468msec) slat (usec): min=2876, max=85614, avg=14697.44, stdev=9548.79 clat (msec): min=23, max=418, avg=197.13, stdev=58.20 lat (msec): min=33, max=463, avg=211.83, stdev=61.59 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 109], 10.00th=[ 123], 20.00th=[ 146], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 209], | 70.00th=[ 226], 80.00th=[ 247], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 405], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 78, max= 287, per=24.68%, avg=147.83, stdev=45.19, samples=66 iops : min= 19, max= 71, avg=36.47, stdev=11.31, samples=66 write: IOPS=39, BW=157KiB/s (161kB/s)(5264KiB/33468msec); 0 zone resets slat (usec): min=45, max=19180, avg=282.58, stdev=834.07 clat (msec): min=79, max=425, avg=204.21, stdev=58.31 lat (msec): min=79, max=425, avg=204.49, stdev=58.32 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 116], 10.00th=[ 132], 20.00th=[ 153], | 30.00th=[ 171], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 213], | 70.00th=[ 232], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 313], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 405], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 71, max= 294, per=25.17%, avg=157.06, stdev=46.15, samples=66 iops : min= 17, max= 73, avg=38.79, stdev=11.58, samples=66 lat (msec) : 50=0.04%, 100=2.19%, 250=78.24%, 500=19.53% cpu : usr=0.23%, sys=1.93%, ctx=4117, 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=179071: Sat Aug 22 08:38:34 2026 read: IOPS=37, BW=150KiB/s (153kB/s)(4984KiB/33267msec) slat (usec): min=58, max=94086, avg=14677.87, stdev=9425.71 clat (msec): min=19, max=459, avg=198.64, stdev=58.29 lat (msec): min=39, max=498, avg=213.32, stdev=61.68 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 111], 10.00th=[ 128], 20.00th=[ 150], | 30.00th=[ 167], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 209], | 70.00th=[ 226], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 363], 99.50th=[ 405], 99.90th=[ 418], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 70, max= 256, per=24.87%, avg=148.95, stdev=40.63, samples=66 iops : min= 17, max= 64, avg=36.74, stdev=10.19, samples=66 write: IOPS=39, BW=158KiB/s (162kB/s)(5256KiB/33267msec); 0 zone resets slat (usec): min=38, max=38706, avg=309.86, stdev=1285.47 clat (msec): min=34, max=402, avg=201.78, stdev=58.92 lat (msec): min=36, max=402, avg=202.09, stdev=58.99 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 110], 10.00th=[ 126], 20.00th=[ 150], | 30.00th=[ 169], 40.00th=[ 186], 50.00th=[ 199], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 397], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 63, max= 263, per=25.07%, avg=156.42, stdev=47.22, samples=66 iops : min= 15, max= 65, avg=38.65, stdev=11.83, samples=66 lat (msec) : 20=0.04%, 50=0.16%, 100=2.54%, 250=78.52%, 500=18.75% cpu : usr=0.25%, sys=1.57%, ctx=4098, 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=179072: Sat Aug 22 08:38:34 2026 read: IOPS=37, BW=151KiB/s (155kB/s)(5060KiB/33471msec) slat (usec): min=76, max=83891, avg=14499.94, stdev=9463.23 clat (msec): min=13, max=421, avg=196.66, stdev=57.51 lat (msec): min=20, max=466, avg=211.17, stdev=60.61 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 112], 10.00th=[ 129], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 243], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 71, max= 239, per=25.08%, avg=150.21, stdev=42.71, samples=66 iops : min= 17, max= 59, avg=37.06, stdev=10.68, samples=66 write: IOPS=38, BW=155KiB/s (158kB/s)(5180KiB/33471msec); 0 zone resets slat (usec): min=39, max=10424, avg=283.30, stdev=712.80 clat (msec): min=64, max=409, avg=205.27, stdev=59.84 lat (msec): min=64, max=409, avg=205.56, stdev=59.83 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 111], 10.00th=[ 127], 20.00th=[ 148], | 30.00th=[ 171], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 355], 99.50th=[ 401], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 78, max= 280, per=24.61%, avg=153.59, stdev=42.59, samples=66 iops : min= 19, max= 70, avg=37.92, stdev=10.72, samples=66 lat (msec) : 20=0.04%, 50=0.08%, 100=2.27%, 250=77.93%, 500=19.69% cpu : usr=0.21%, sys=1.71%, ctx=4398, majf=0, minf=15 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=600KiB/s (614kB/s), 149KiB/s-151KiB/s (152kB/s-155kB/s), io=19.6MiB (20.5MB), run=33267-33471msec WRITE: bw=624KiB/s (639kB/s), 155KiB/s-158KiB/s (158kB/s-162kB/s), io=20.4MiB (21.4MB), run=33267-33471msec 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=179081: Sat Aug 22 08:38:45 2026 read: IOPS=1, BW=73.7MiB/s (77.2MB/s)(40.0MiB/543msec) slat (nsec): min=51522k, max=51522k, avg=51521689.00, stdev= 0.00 clat (nsec): min=463536k, max=463536k, avg=463535965.00, stdev= 0.00 lat (nsec): min=515064k, max=515064k, avg=515064224.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.21%, ctx=6, 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=73.7MiB/s (77.2MB/s), 73.7MiB/s-73.7MiB/s (77.2MB/s-77.2MB/s), io=40.0MiB (41.9MB), run=543-543msec 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