== sanity test 398c: run fio to test AIO ================= 02:42:36 (1769758956) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.188205 s, 223 MB/s osc.lustre-OST0000-osc-ffff9f07b1445000.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=148186: Fri Jan 30 02:44:01 2026 write: IOPS=31, BW=126KiB/s (129kB/s)(10.0MiB/81189msec); 0 zone resets slat (usec): min=37, max=8356, avg=256.76, stdev=510.87 clat (msec): min=101, max=980, avg=506.48, stdev=150.41 lat (msec): min=101, max=980, avg=506.74, stdev=150.44 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 249], 10.00th=[ 300], 20.00th=[ 397], | 30.00th=[ 439], 40.00th=[ 477], 50.00th=[ 510], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 625], 90.00th=[ 693], 95.00th=[ 751], | 99.00th=[ 885], 99.50th=[ 919], 99.90th=[ 944], 99.95th=[ 969], | 99.99th=[ 978] bw ( KiB/s): min= 48, max= 312, per=24.92%, avg=125.60, stdev=42.65, samples=161 iops : min= 12, max= 78, avg=31.11, stdev=10.73, samples=161 lat (msec) : 250=5.16%, 500=41.41%, 750=48.59%, 1000=4.84% cpu : usr=0.08%, sys=0.49%, ctx=2715, majf=0, minf=8 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=148187: Fri Jan 30 02:44:01 2026 write: IOPS=31, BW=126KiB/s (129kB/s)(10.0MiB/81190msec); 0 zone resets slat (usec): min=38, max=8699, avg=246.47, stdev=475.50 clat (msec): min=45, max=979, avg=506.47, stdev=148.61 lat (msec): min=45, max=980, avg=506.72, stdev=148.62 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 234], 10.00th=[ 296], 20.00th=[ 393], | 30.00th=[ 443], 40.00th=[ 477], 50.00th=[ 510], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 625], 90.00th=[ 684], 95.00th=[ 743], | 99.00th=[ 852], 99.50th=[ 902], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 978] bw ( KiB/s): min= 55, max= 351, per=24.93%, avg=125.63, stdev=43.58, samples=161 iops : min= 13, max= 87, avg=31.11, stdev=10.96, samples=161 lat (msec) : 50=0.08%, 100=0.04%, 250=5.55%, 500=40.47%, 750=49.49% lat (msec) : 1000=4.38% cpu : usr=0.06%, sys=0.51%, ctx=2862, 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=148188: Fri Jan 30 02:44:01 2026 write: IOPS=31, BW=126KiB/s (129kB/s)(10.0MiB/80978msec); 0 zone resets slat (usec): min=36, max=6546, avg=250.30, stdev=437.64 clat (msec): min=89, max=968, avg=505.59, stdev=152.64 lat (msec): min=89, max=969, avg=505.85, stdev=152.69 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 222], 10.00th=[ 296], 20.00th=[ 388], | 30.00th=[ 443], 40.00th=[ 485], 50.00th=[ 514], 60.00th=[ 542], | 70.00th=[ 575], 80.00th=[ 625], 90.00th=[ 693], 95.00th=[ 760], | 99.00th=[ 877], 99.50th=[ 927], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 969] bw ( KiB/s): min= 47, max= 383, per=24.92%, avg=125.60, stdev=47.43, samples=161 iops : min= 11, max= 95, avg=31.10, stdev=11.87, samples=161 lat (msec) : 100=0.62%, 250=5.70%, 500=39.77%, 750=48.40%, 1000=5.51% cpu : usr=0.06%, sys=0.49%, ctx=2654, 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=148189: Fri Jan 30 02:44:01 2026 write: IOPS=31, BW=126KiB/s (129kB/s)(10.0MiB/81223msec); 0 zone resets slat (usec): min=38, max=7871, avg=251.49, stdev=401.67 clat (msec): min=104, max=943, avg=506.75, stdev=148.12 lat (msec): min=104, max=943, avg=507.01, stdev=148.14 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 236], 10.00th=[ 300], 20.00th=[ 388], | 30.00th=[ 439], 40.00th=[ 477], 50.00th=[ 514], 60.00th=[ 550], | 70.00th=[ 584], 80.00th=[ 625], 90.00th=[ 693], 95.00th=[ 743], | 99.00th=[ 860], 99.50th=[ 902], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 944] bw ( KiB/s): min= 48, max= 383, per=24.81%, avg=125.05, stdev=44.49, samples=161 iops : min= 12, max= 95, avg=30.97, stdev=11.18, samples=161 lat (msec) : 250=5.59%, 500=41.45%, 750=48.24%, 1000=4.73% cpu : usr=0.06%, sys=0.50%, ctx=3252, 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=504KiB/s (516kB/s), 126KiB/s-126KiB/s (129kB/s-129kB/s), io=40.0MiB (41.9MB), run=80978-81223msec 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=148210: Fri Jan 30 02:44:59 2026 read: IOPS=23, BW=94.3KiB/s (96.6kB/s)(5048KiB/53525msec) slat (usec): min=2032, max=25619, avg=7267.59, stdev=3445.77 clat (msec): min=13, max=495, avg=211.91, stdev=48.29 lat (msec): min=18, max=510, avg=219.19, stdev=48.81 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 232], 80.00th=[ 249], 90.00th=[ 275], 95.00th=[ 292], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 426], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 32, max= 176, per=25.07%, avg=93.77, stdev=29.36, samples=106 iops : min= 8, max= 44, avg=23.11, stdev= 7.34, samples=106 write: IOPS=24, BW=97.0KiB/s (99.3kB/s)(5192KiB/53525msec); 0 zone resets slat (usec): min=50, max=10850, avg=299.59, stdev=597.92 clat (msec): min=168, max=899, avg=445.19, stdev=115.29 lat (msec): min=168, max=899, avg=445.49, stdev=115.29 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 275], 10.00th=[ 305], 20.00th=[ 351], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 443], 60.00th=[ 464], | 70.00th=[ 489], 80.00th=[ 527], 90.00th=[ 575], 95.00th=[ 642], | 99.00th=[ 818], 99.50th=[ 844], 99.90th=[ 894], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 31, max= 160, per=24.77%, avg=96.36, stdev=25.67, samples=106 iops : min= 7, max= 40, avg=23.75, stdev= 6.52, samples=106 lat (msec) : 20=0.08%, 50=0.20%, 100=0.27%, 250=40.86%, 500=44.96% lat (msec) : 750=12.62%, 1000=1.02% cpu : usr=0.14%, sys=1.18%, ctx=5221, 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=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=148211: Fri Jan 30 02:44:59 2026 read: IOPS=23, BW=92.8KiB/s (94.0kB/s)(4976KiB/53641msec) slat (usec): min=1977, max=27548, avg=7538.59, stdev=3607.92 clat (msec): min=13, max=420, avg=210.36, stdev=47.11 lat (msec): min=19, max=431, avg=217.90, stdev=47.73 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 247], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 338], 99.50th=[ 359], 99.90th=[ 401], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 16, max= 176, per=24.56%, avg=91.86, stdev=30.81, samples=106 iops : min= 4, max= 44, avg=22.63, stdev= 7.75, samples=106 write: IOPS=24, BW=98.1KiB/s (100kB/s)(5264KiB/53641msec); 0 zone resets slat (usec): min=49, max=7444, avg=281.26, stdev=450.08 clat (msec): min=166, max=897, avg=444.86, stdev=117.58 lat (msec): min=166, max=897, avg=445.14, stdev=117.58 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 271], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 380], 40.00th=[ 409], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 493], 80.00th=[ 531], 90.00th=[ 584], 95.00th=[ 659], | 99.00th=[ 785], 99.50th=[ 852], 99.90th=[ 885], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 32, max= 175, per=25.04%, avg=97.41, stdev=26.98, samples=106 iops : min= 8, max= 43, avg=24.02, stdev= 6.78, samples=106 lat (msec) : 20=0.04%, 50=0.23%, 100=0.20%, 250=40.82%, 500=44.26% lat (msec) : 750=13.48%, 1000=0.98% cpu : usr=0.13%, sys=1.14%, ctx=5167, 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=148212: Fri Jan 30 02:44:59 2026 read: IOPS=23, BW=92.9KiB/s (95.1kB/s)(4984KiB/53643msec) slat (usec): min=1827, max=27427, avg=7431.92, stdev=3523.19 clat (msec): min=12, max=489, avg=215.21, stdev=48.12 lat (msec): min=15, max=499, avg=222.65, stdev=48.57 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 148], 10.00th=[ 161], 20.00th=[ 176], | 30.00th=[ 192], 40.00th=[ 203], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 234], 80.00th=[ 251], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 347], 99.50th=[ 355], 99.90th=[ 485], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 23, max= 192, per=24.73%, avg=92.48, stdev=31.50, samples=106 iops : min= 5, max= 48, avg=22.79, stdev= 7.98, samples=106 write: IOPS=24, BW=97.0KiB/s (100kB/s)(5256KiB/53643msec); 0 zone resets slat (usec): min=43, max=6144, avg=303.27, stdev=528.36 clat (msec): min=133, max=901, avg=440.81, stdev=117.14 lat (msec): min=133, max=907, avg=441.11, stdev=117.13 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 262], 10.00th=[ 300], 20.00th=[ 342], | 30.00th=[ 384], 40.00th=[ 409], 50.00th=[ 439], 60.00th=[ 460], | 70.00th=[ 489], 80.00th=[ 523], 90.00th=[ 575], 95.00th=[ 651], | 99.00th=[ 785], 99.50th=[ 852], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 39, max= 168, per=24.87%, avg=96.75, stdev=26.34, samples=106 iops : min= 9, max= 42, avg=23.86, stdev= 6.63, samples=106 lat (msec) : 20=0.04%, 50=0.16%, 100=0.16%, 250=40.08%, 500=46.29% lat (msec) : 750=12.34%, 1000=0.94% cpu : usr=0.11%, sys=1.17%, ctx=5184, 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=148213: Fri Jan 30 02:44:59 2026 read: IOPS=23, BW=94.9KiB/s (97.2kB/s)(5060KiB/53299msec) slat (usec): min=56, max=24024, avg=7362.80, stdev=3494.18 clat (msec): min=10, max=636, avg=212.09, stdev=52.67 lat (msec): min=15, max=641, avg=219.46, stdev=53.15 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 222], | 70.00th=[ 234], 80.00th=[ 247], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 347], 99.50th=[ 405], 99.90th=[ 592], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 16, max= 176, per=25.22%, avg=94.33, stdev=27.62, samples=106 iops : min= 4, max= 44, avg=23.25, stdev= 6.93, samples=106 write: IOPS=24, BW=97.2KiB/s (99.5kB/s)(5180KiB/53299msec); 0 zone resets slat (usec): min=43, max=7442, avg=261.04, stdev=405.91 clat (msec): min=52, max=906, avg=443.40, stdev=121.73 lat (msec): min=52, max=908, avg=443.67, stdev=121.74 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 266], 10.00th=[ 296], 20.00th=[ 351], | 30.00th=[ 384], 40.00th=[ 409], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 489], 80.00th=[ 531], 90.00th=[ 584], 95.00th=[ 676], | 99.00th=[ 827], 99.50th=[ 860], 99.90th=[ 877], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 32, max= 176, per=24.77%, avg=96.36, stdev=26.78, samples=106 iops : min= 8, max= 44, avg=23.75, stdev= 6.75, samples=106 lat (msec) : 20=0.20%, 50=0.27%, 100=0.59%, 250=40.55%, 500=44.69% lat (msec) : 750=12.42%, 1000=1.29% cpu : usr=0.12%, sys=1.18%, ctx=5146, 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=374KiB/s (383kB/s), 92.8KiB/s-94.9KiB/s (94.0kB/s-97.2kB/s), io=19.6MiB (20.5MB), run=53299-53643msec WRITE: bw=389KiB/s (399kB/s), 97.0KiB/s-98.1KiB/s (99.3kB/s-100kB/s), io=20.4MiB (21.4MB), run=53299-53643msec 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=148224: Fri Jan 30 02:45:04 2026 read: IOPS=4, BW=166MiB/s (174MB/s)(40.0MiB/241msec) slat (nsec): min=14334k, max=14334k, avg=14333586.00, stdev= 0.00 clat (nsec): min=215529k, max=215529k, avg=215529000.00, stdev= 0.00 lat (nsec): min=229866k, max=229866k, avg=229866458.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 215], | 70.00th=[ 215], 80.00th=[ 215], 90.00th=[ 215], 95.00th=[ 215], | 99.00th=[ 215], 99.50th=[ 215], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=4.17%, ctx=43, 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=166MiB/s (174MB/s), 166MiB/s-166MiB/s (174MB/s-174MB/s), io=40.0MiB (41.9MB), run=241-241msec 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