== sanity test 398c: run fio to test AIO ================= 17:51:35 (1786312295) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.502399 s, 83.5 MB/s osc.lustre-OST0000-osc-ffff95ac07ceb800.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=179257: Sun Aug 9 17:52:18 2026 write: IOPS=80, BW=323KiB/s (331kB/s)(10.0MiB/31678msec); 0 zone resets slat (usec): min=39, max=25660, avg=331.14, stdev=1184.57 clat (msec): min=17, max=375, avg=196.69, stdev=55.91 lat (msec): min=18, max=376, avg=197.02, stdev=55.88 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 236], 90.00th=[ 271], 95.00th=[ 305], | 99.00th=[ 355], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 376] bw ( KiB/s): min= 151, max= 528, per=24.86%, avg=321.47, stdev=78.78, samples=62 iops : min= 37, max= 132, avg=80.03, stdev=19.77, samples=62 lat (msec) : 20=0.04%, 50=0.12%, 100=1.95%, 250=82.15%, 500=15.74% cpu : usr=0.19%, sys=1.02%, ctx=2598, 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=179258: Sun Aug 9 17:52:18 2026 write: IOPS=81, BW=326KiB/s (333kB/s)(10.0MiB/31442msec); 0 zone resets slat (usec): min=35, max=21569, avg=312.61, stdev=1117.19 clat (msec): min=19, max=422, avg=195.92, stdev=57.51 lat (msec): min=20, max=423, avg=196.24, stdev=57.54 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 174, max= 595, per=25.15%, avg=325.23, stdev=85.95, samples=62 iops : min= 43, max= 148, avg=80.95, stdev=21.52, samples=62 lat (msec) : 20=0.04%, 50=0.08%, 100=3.36%, 250=79.77%, 500=16.76% cpu : usr=0.21%, sys=1.14%, ctx=2319, 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=179259: Sun Aug 9 17:52:18 2026 write: IOPS=81, BW=324KiB/s (332kB/s)(10.0MiB/31589msec); 0 zone resets slat (usec): min=38, max=18766, avg=309.33, stdev=1063.03 clat (msec): min=35, max=373, avg=196.24, stdev=56.18 lat (msec): min=37, max=373, avg=196.55, stdev=56.17 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 342], 99.50th=[ 355], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 182, max= 504, per=24.96%, avg=322.77, stdev=78.79, samples=62 iops : min= 45, max= 126, avg=80.34, stdev=19.76, samples=62 lat (msec) : 50=0.47%, 100=2.07%, 250=80.98%, 500=16.48% cpu : usr=0.13%, sys=1.11%, ctx=2720, 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=179260: Sun Aug 9 17:52:18 2026 write: IOPS=80, BW=323KiB/s (331kB/s)(10.0MiB/31678msec); 0 zone resets slat (usec): min=53, max=25347, avg=315.69, stdev=1130.49 clat (msec): min=54, max=373, avg=196.50, stdev=55.48 lat (msec): min=54, max=373, avg=196.82, stdev=55.46 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 205], | 70.00th=[ 215], 80.00th=[ 239], 90.00th=[ 275], 95.00th=[ 305], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 135, max= 512, per=24.89%, avg=321.81, stdev=80.96, samples=62 iops : min= 33, max= 128, avg=80.08, stdev=20.27, samples=62 lat (msec) : 100=2.97%, 250=81.25%, 500=15.78% cpu : usr=0.16%, sys=1.13%, ctx=2682, 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=1293KiB/s (1324kB/s), 323KiB/s-326KiB/s (331kB/s-333kB/s), io=40.0MiB (41.9MB), run=31442-31678msec 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=179276: Sun Aug 9 17:53:11 2026 read: IOPS=30, BW=122KiB/s (125kB/s)(5048KiB/41387msec) slat (usec): min=2519, max=80161, avg=17706.67, stdev=10740.63 clat (msec): min=71, max=510, avg=245.72, stdev=70.82 lat (msec): min=99, max=535, avg=263.43, stdev=74.53 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 153], 10.00th=[ 171], 20.00th=[ 190], | 30.00th=[ 205], 40.00th=[ 220], 50.00th=[ 232], 60.00th=[ 249], | 70.00th=[ 271], 80.00th=[ 296], 90.00th=[ 355], 95.00th=[ 388], | 99.00th=[ 456], 99.50th=[ 472], 99.90th=[ 498], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 55, max= 224, per=25.03%, avg=121.14, stdev=34.92, samples=81 iops : min= 13, max= 56, avg=29.80, stdev= 8.86, samples=81 write: IOPS=31, BW=125KiB/s (128kB/s)(5192KiB/41387msec); 0 zone resets slat (usec): min=38, max=13818, avg=380.20, stdev=1155.45 clat (msec): min=109, max=484, avg=250.31, stdev=65.21 lat (msec): min=109, max=484, avg=250.69, stdev=65.25 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 167], 10.00th=[ 180], 20.00th=[ 199], | 30.00th=[ 211], 40.00th=[ 224], 50.00th=[ 241], 60.00th=[ 255], | 70.00th=[ 275], 80.00th=[ 296], 90.00th=[ 338], 95.00th=[ 380], | 99.00th=[ 443], 99.50th=[ 464], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 34, max= 224, per=24.85%, avg=125.26, stdev=36.22, samples=81 iops : min= 8, max= 56, avg=30.84, stdev= 9.09, samples=81 lat (msec) : 100=0.08%, 250=59.06%, 500=40.82%, 750=0.04% cpu : usr=0.18%, sys=1.48%, ctx=4046, 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=179277: Sun Aug 9 17:53:11 2026 read: IOPS=30, BW=120KiB/s (123kB/s)(4976KiB/41388msec) slat (usec): min=450, max=86891, avg=17780.03, stdev=10764.99 clat (msec): min=36, max=603, avg=248.15, stdev=72.66 lat (msec): min=40, max=628, avg=265.94, stdev=76.18 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 157], 10.00th=[ 169], 20.00th=[ 192], | 30.00th=[ 207], 40.00th=[ 224], 50.00th=[ 236], 60.00th=[ 251], | 70.00th=[ 271], 80.00th=[ 296], 90.00th=[ 342], 95.00th=[ 393], | 99.00th=[ 477], 99.50th=[ 523], 99.90th=[ 592], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 39, max= 205, per=24.68%, avg=119.46, stdev=34.45, samples=81 iops : min= 9, max= 51, avg=29.37, stdev= 8.70, samples=81 write: IOPS=31, BW=127KiB/s (130kB/s)(5264KiB/41388msec); 0 zone resets slat (usec): min=44, max=14157, avg=335.24, stdev=993.68 clat (msec): min=58, max=609, avg=250.54, stdev=69.66 lat (msec): min=59, max=609, avg=250.88, stdev=69.65 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 167], 10.00th=[ 178], 20.00th=[ 194], | 30.00th=[ 211], 40.00th=[ 226], 50.00th=[ 241], 60.00th=[ 253], | 70.00th=[ 271], 80.00th=[ 300], 90.00th=[ 342], 95.00th=[ 384], | 99.00th=[ 477], 99.50th=[ 510], 99.90th=[ 542], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 39, max= 240, per=25.18%, avg=126.93, stdev=42.63, samples=81 iops : min= 9, max= 60, avg=31.26, stdev=10.74, samples=81 lat (msec) : 50=0.08%, 100=0.16%, 250=58.16%, 500=40.86%, 750=0.74% cpu : usr=0.19%, sys=1.62%, ctx=4102, 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=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=179278: Sun Aug 9 17:53:11 2026 read: IOPS=30, BW=120KiB/s (123kB/s)(4984KiB/41430msec) slat (usec): min=2985, max=67733, avg=18032.34, stdev=10412.67 clat (msec): min=22, max=565, avg=248.55, stdev=73.23 lat (msec): min=49, max=599, avg=266.59, stdev=76.83 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 157], 10.00th=[ 171], 20.00th=[ 192], | 30.00th=[ 209], 40.00th=[ 224], 50.00th=[ 236], 60.00th=[ 249], | 70.00th=[ 271], 80.00th=[ 300], 90.00th=[ 351], 95.00th=[ 397], | 99.00th=[ 464], 99.50th=[ 506], 99.90th=[ 558], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 23, max= 200, per=24.69%, avg=119.52, stdev=34.56, samples=81 iops : min= 5, max= 50, avg=29.37, stdev= 8.74, samples=81 write: IOPS=31, BW=127KiB/s (130kB/s)(5256KiB/41430msec); 0 zone resets slat (usec): min=39, max=14285, avg=312.23, stdev=885.27 clat (msec): min=21, max=520, avg=247.63, stdev=67.22 lat (msec): min=22, max=525, avg=247.94, stdev=67.28 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 161], 10.00th=[ 176], 20.00th=[ 199], | 30.00th=[ 213], 40.00th=[ 228], 50.00th=[ 239], 60.00th=[ 253], | 70.00th=[ 266], 80.00th=[ 292], 90.00th=[ 338], 95.00th=[ 380], | 99.00th=[ 460], 99.50th=[ 468], 99.90th=[ 493], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 39, max= 230, per=24.84%, avg=125.17, stdev=42.84, samples=81 iops : min= 9, max= 57, avg=30.81, stdev=10.77, samples=81 lat (msec) : 50=0.27%, 100=0.59%, 250=58.20%, 500=40.62%, 750=0.31% cpu : usr=0.21%, sys=1.66%, ctx=3963, 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=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=179279: Sun Aug 9 17:53:11 2026 read: IOPS=30, BW=122KiB/s (125kB/s)(5060KiB/41416msec) slat (usec): min=3150, max=85989, avg=17591.58, stdev=10572.39 clat (msec): min=88, max=501, avg=244.86, stdev=67.37 lat (msec): min=102, max=546, avg=262.46, stdev=70.92 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 155], 10.00th=[ 169], 20.00th=[ 188], | 30.00th=[ 207], 40.00th=[ 222], 50.00th=[ 234], 60.00th=[ 251], | 70.00th=[ 268], 80.00th=[ 292], 90.00th=[ 338], 95.00th=[ 380], | 99.00th=[ 439], 99.50th=[ 451], 99.90th=[ 493], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 39, max= 216, per=25.11%, avg=121.54, stdev=36.07, samples=81 iops : min= 9, max= 54, avg=29.90, stdev= 9.10, samples=81 write: IOPS=31, BW=125KiB/s (128kB/s)(5180KiB/41416msec); 0 zone resets slat (usec): min=44, max=10633, avg=298.57, stdev=749.64 clat (msec): min=52, max=544, avg=252.49, stdev=69.38 lat (msec): min=52, max=544, avg=252.79, stdev=69.37 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 163], 10.00th=[ 178], 20.00th=[ 197], | 30.00th=[ 211], 40.00th=[ 226], 50.00th=[ 243], 60.00th=[ 259], | 70.00th=[ 275], 80.00th=[ 305], 90.00th=[ 351], 95.00th=[ 393], | 99.00th=[ 451], 99.50th=[ 489], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 62, max= 199, per=24.62%, avg=124.07, stdev=37.15, samples=81 iops : min= 15, max= 49, avg=30.53, stdev= 9.35, samples=81 lat (msec) : 100=0.27%, 250=57.11%, 500=42.34%, 750=0.27% cpu : usr=0.20%, sys=1.62%, ctx=4261, 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=484KiB/s (496kB/s), 120KiB/s-122KiB/s (123kB/s-125kB/s), io=19.6MiB (20.5MB), run=41387-41430msec WRITE: bw=504KiB/s (516kB/s), 125KiB/s-127KiB/s (128kB/s-130kB/s), io=20.4MiB (21.4MB), run=41387-41430msec 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=179290: Sun Aug 9 17:53:24 2026 read: IOPS=1, BW=70.9MiB/s (74.4MB/s)(40.0MiB/564msec) slat (nsec): min=25110k, max=25110k, avg=25110382.00, stdev= 0.00 clat (nsec): min=517955k, max=517955k, avg=517954945.00, stdev= 0.00 lat (nsec): min=543123k, max=543123k, avg=543122989.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 518], 10.00th=[ 518], 20.00th=[ 518], | 30.00th=[ 518], 40.00th=[ 518], 50.00th=[ 518], 60.00th=[ 518], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.13%, ctx=11, majf=0, minf=8 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=70.9MiB/s (74.4MB/s), 70.9MiB/s-70.9MiB/s (74.4MB/s-74.4MB/s), io=40.0MiB (41.9MB), run=564-564msec 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