== sanity test 398c: run fio to test AIO ================= 18:58:37 (1788649117) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.388484 s, 108 MB/s osc.lustre-OST0000-osc-ffff981683357800.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=180743: Sat Sep 5 18:59:16 2026 write: IOPS=89, BW=357KiB/s (366kB/s)(10.0MiB/28657msec); 0 zone resets slat (usec): min=23, max=10556, avg=177.81, stdev=580.92 clat (msec): min=41, max=402, avg=178.80, stdev=49.65 lat (msec): min=41, max=402, avg=178.98, stdev=49.65 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 107], 10.00th=[ 129], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 163], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 271], | 99.00th=[ 334], 99.50th=[ 393], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 401] bw ( KiB/s): min= 134, max= 649, per=24.90%, avg=353.05, stdev=87.07, samples=56 iops : min= 33, max= 162, avg=87.86, stdev=21.78, samples=56 lat (msec) : 50=0.62%, 100=2.62%, 250=88.87%, 500=7.89% cpu : usr=0.13%, sys=0.70%, ctx=1652, 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=180744: Sat Sep 5 18:59:16 2026 write: IOPS=88, BW=355KiB/s (363kB/s)(10.0MiB/28878msec); 0 zone resets slat (usec): min=27, max=17389, avg=263.83, stdev=904.55 clat (msec): min=35, max=429, avg=179.61, stdev=47.52 lat (msec): min=35, max=430, avg=179.88, stdev=47.51 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 313], 99.50th=[ 380], 99.90th=[ 409], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 157, max= 586, per=24.85%, avg=352.35, stdev=74.15, samples=57 iops : min= 39, max= 146, avg=87.70, stdev=18.50, samples=57 lat (msec) : 50=0.23%, 100=1.33%, 250=91.05%, 500=7.38% cpu : usr=0.22%, sys=1.01%, ctx=2875, 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=180745: Sat Sep 5 18:59:16 2026 write: IOPS=88, BW=355KiB/s (363kB/s)(10.0MiB/28856msec); 0 zone resets slat (usec): min=24, max=15059, avg=231.74, stdev=681.54 clat (msec): min=16, max=426, avg=179.57, stdev=48.19 lat (msec): min=17, max=426, avg=179.81, stdev=48.20 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 113], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 313], 99.50th=[ 393], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 173, max= 530, per=24.92%, avg=353.37, stdev=73.10, samples=57 iops : min= 43, max= 132, avg=87.95, stdev=18.27, samples=57 lat (msec) : 20=0.04%, 50=0.08%, 100=2.07%, 250=90.90%, 500=6.91% cpu : usr=0.23%, sys=0.97%, ctx=2812, 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=180746: Sat Sep 5 18:59:16 2026 write: IOPS=88, BW=355KiB/s (363kB/s)(10.0MiB/28872msec); 0 zone resets slat (usec): min=22, max=9753, avg=193.47, stdev=611.87 clat (msec): min=16, max=423, avg=179.67, stdev=48.36 lat (msec): min=16, max=423, avg=179.86, stdev=48.33 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 116], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 236], 95.00th=[ 268], | 99.00th=[ 359], 99.50th=[ 363], 99.90th=[ 422], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 172, max= 617, per=24.92%, avg=353.42, stdev=84.75, samples=57 iops : min= 43, max= 154, avg=87.96, stdev=21.22, samples=57 lat (msec) : 20=0.04%, 50=0.16%, 100=2.11%, 250=90.78%, 500=6.91% cpu : usr=0.16%, sys=0.81%, ctx=2317, 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=1418KiB/s (1452kB/s), 355KiB/s-357KiB/s (363kB/s-366kB/s), io=40.0MiB (41.9MB), run=28657-28878msec 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=180761: Sat Sep 5 18:59:57 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(5048KiB/31854msec) slat (usec): min=3023, max=69853, avg=14205.19, stdev=8101.53 clat (msec): min=20, max=375, avg=187.41, stdev=48.12 lat (msec): min=28, max=393, avg=201.62, stdev=49.76 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 313], 99.50th=[ 330], 99.90th=[ 347], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 80, max= 272, per=25.03%, avg=157.41, stdev=36.76, samples=63 iops : min= 20, max= 68, avg=38.81, stdev= 9.21, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5192KiB/31854msec); 0 zone resets slat (usec): min=34, max=23858, avg=273.49, stdev=966.04 clat (msec): min=45, max=434, avg=193.21, stdev=47.27 lat (msec): min=45, max=434, avg=193.48, stdev=47.26 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 372], 99.90th=[ 418], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 83, max= 256, per=24.74%, avg=162.08, stdev=42.88, samples=63 iops : min= 20, max= 64, avg=39.98, stdev=10.71, samples=63 lat (msec) : 50=0.23%, 100=0.78%, 250=87.46%, 500=11.52% cpu : usr=0.25%, sys=1.92%, ctx=4258, 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=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=180762: Sat Sep 5 18:59:57 2026 read: IOPS=39, BW=157KiB/s (160kB/s)(4976KiB/31786msec) slat (usec): min=2779, max=57682, avg=14025.00, stdev=7611.87 clat (msec): min=32, max=384, avg=186.54, stdev=48.56 lat (msec): min=39, max=403, avg=200.57, stdev=50.43 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 118], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 251], 95.00th=[ 279], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 71, max= 239, per=24.70%, avg=155.35, stdev=40.32, samples=63 iops : min= 17, max= 59, avg=38.29, stdev=10.12, samples=63 write: IOPS=41, BW=166KiB/s (170kB/s)(5264KiB/31786msec); 0 zone resets slat (usec): min=30, max=15803, avg=269.35, stdev=806.30 clat (msec): min=40, max=367, avg=193.81, stdev=47.57 lat (msec): min=43, max=367, avg=194.08, stdev=47.53 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 257], 95.00th=[ 292], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 95, max= 271, per=25.22%, avg=165.22, stdev=40.00, samples=63 iops : min= 23, max= 67, avg=40.78, stdev= 9.98, samples=63 lat (msec) : 50=0.08%, 100=1.02%, 250=87.73%, 500=11.17% cpu : usr=0.29%, sys=1.76%, ctx=4333, 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=180763: Sat Sep 5 18:59:57 2026 read: IOPS=39, BW=157KiB/s (160kB/s)(4984KiB/31820msec) slat (usec): min=2791, max=76408, avg=14161.81, stdev=7902.07 clat (msec): min=81, max=374, avg=187.32, stdev=49.43 lat (msec): min=91, max=404, avg=201.49, stdev=51.25 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 226], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 60, max= 239, per=24.86%, avg=156.40, stdev=39.73, samples=63 iops : min= 15, max= 59, avg=38.57, stdev= 9.95, samples=63 write: IOPS=41, BW=165KiB/s (169kB/s)(5256KiB/31820msec); 0 zone resets slat (usec): min=31, max=13605, avg=250.76, stdev=784.28 clat (msec): min=51, max=433, avg=193.16, stdev=47.33 lat (msec): min=51, max=433, avg=193.42, stdev=47.31 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 426], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 71, max= 269, per=25.05%, avg=164.06, stdev=45.30, samples=63 iops : min= 17, max= 67, avg=40.48, stdev=11.34, samples=63 lat (msec) : 100=0.82%, 250=87.38%, 500=11.80% cpu : usr=0.25%, sys=1.69%, ctx=4148, 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=180764: Sat Sep 5 18:59:57 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(5060KiB/31608msec) slat (usec): min=46, max=60889, avg=14326.82, stdev=7916.05 clat (msec): min=24, max=373, avg=186.29, stdev=48.67 lat (msec): min=24, max=410, avg=200.62, stdev=50.56 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 338], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 72, max= 232, per=25.43%, avg=159.94, stdev=36.50, samples=62 iops : min= 18, max= 58, avg=39.45, stdev= 9.14, samples=62 write: IOPS=40, BW=164KiB/s (168kB/s)(5180KiB/31608msec); 0 zone resets slat (usec): min=32, max=18127, avg=283.45, stdev=896.13 clat (msec): min=67, max=413, avg=193.51, stdev=47.48 lat (msec): min=67, max=413, avg=193.80, stdev=47.43 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 63, max= 254, per=24.98%, avg=163.60, stdev=41.38, samples=62 iops : min= 15, max= 63, avg=40.35, stdev=10.33, samples=62 lat (msec) : 50=0.27%, 100=0.90%, 250=87.27%, 500=11.56% cpu : usr=0.24%, sys=1.84%, ctx=4389, 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=630KiB/s (645kB/s), 157KiB/s-160KiB/s (160kB/s-164kB/s), io=19.6MiB (20.5MB), run=31608-31854msec WRITE: bw=656KiB/s (672kB/s), 163KiB/s-166KiB/s (167kB/s-170kB/s), io=20.4MiB (21.4MB), run=31608-31854msec 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=180775: Sat Sep 5 19:00:08 2026 read: IOPS=2, BW=80.8MiB/s (84.7MB/s)(40.0MiB/495msec) slat (nsec): min=48970k, max=48970k, avg=48970312.00, stdev= 0.00 clat (nsec): min=422837k, max=422837k, avg=422837055.00, stdev= 0.00 lat (nsec): min=471812k, max=471812k, avg=471811857.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.63%, ctx=8, 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=80.8MiB/s (84.7MB/s), 80.8MiB/s-80.8MiB/s (84.7MB/s-84.7MB/s), io=40.0MiB (41.9MB), run=495-495msec 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