== sanity test 398c: run fio to test AIO ================= 14:55:24 (1789066524) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.308802 s, 136 MB/s osc.lustre-OST0000-osc-ffff977f88dbc000.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=179907: Thu Sep 10 14:56:03 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29885msec); 0 zone resets slat (usec): min=49, max=16659, avg=328.97, stdev=938.25 clat (msec): min=41, max=360, avg=186.35, stdev=51.27 lat (msec): min=41, max=360, avg=186.68, stdev=51.29 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 115], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 253], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 166, max= 582, per=24.99%, avg=341.81, stdev=81.31, samples=59 iops : min= 41, max= 145, avg=85.05, stdev=20.34, samples=59 lat (msec) : 50=0.62%, 100=1.29%, 250=87.50%, 500=10.59% cpu : usr=0.19%, sys=1.11%, ctx=2250, 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=179908: Thu Sep 10 14:56:03 2026 write: IOPS=85, BW=343KiB/s (352kB/s)(10.0MiB/29818msec); 0 zone resets slat (usec): min=49, max=22509, avg=300.21, stdev=937.76 clat (msec): min=25, max=380, avg=185.88, stdev=52.29 lat (msec): min=26, max=380, avg=186.19, stdev=52.33 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 110], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 194], | 70.00th=[ 203], 80.00th=[ 228], 90.00th=[ 253], 95.00th=[ 284], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 372], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 135, max= 582, per=25.03%, avg=342.36, stdev=85.85, samples=59 iops : min= 33, max= 145, avg=85.17, stdev=21.52, samples=59 lat (msec) : 50=0.08%, 100=2.89%, 250=86.29%, 500=10.74% cpu : usr=0.17%, sys=1.07%, ctx=1952, 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=179909: Thu Sep 10 14:56:03 2026 write: IOPS=85, BW=342KiB/s (351kB/s)(10.0MiB/29908msec); 0 zone resets slat (usec): min=47, max=12049, avg=331.20, stdev=847.41 clat (msec): min=30, max=378, avg=186.47, stdev=49.59 lat (msec): min=30, max=379, avg=186.80, stdev=49.58 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 116], 10.00th=[ 134], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 351], 99.50th=[ 355], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 159, max= 518, per=24.99%, avg=341.83, stdev=76.80, samples=59 iops : min= 39, max= 129, avg=85.05, stdev=19.25, samples=59 lat (msec) : 50=0.08%, 100=1.52%, 250=88.20%, 500=10.20% cpu : usr=0.18%, sys=1.25%, ctx=2921, 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=179910: Thu Sep 10 14:56:03 2026 write: IOPS=85, BW=342KiB/s (350kB/s)(10.0MiB/29924msec); 0 zone resets slat (usec): min=51, max=24604, avg=350.67, stdev=1085.60 clat (msec): min=69, max=363, avg=186.53, stdev=50.86 lat (msec): min=69, max=363, avg=186.88, stdev=50.87 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 118], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 174, max= 510, per=24.97%, avg=341.64, stdev=81.46, samples=59 iops : min= 43, max= 127, avg=85.02, stdev=20.40, samples=59 lat (msec) : 100=1.95%, 250=88.52%, 500=9.53% cpu : usr=0.19%, sys=1.26%, ctx=2951, 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=1369KiB/s (1402kB/s), 342KiB/s-343KiB/s (350kB/s-352kB/s), io=40.0MiB (41.9MB), run=29818-29924msec 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=179925: Thu Sep 10 14:56:43 2026 read: IOPS=39, BW=160KiB/s (163kB/s)(5048KiB/31639msec) slat (usec): min=59, max=51879, avg=14142.15, stdev=7954.87 clat (msec): min=71, max=369, avg=188.84, stdev=47.79 lat (msec): min=87, max=406, avg=202.99, stdev=49.67 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 255], 95.00th=[ 284], | 99.00th=[ 321], 99.50th=[ 338], 99.90th=[ 355], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 80, max= 224, per=25.12%, avg=158.76, stdev=32.98, samples=62 iops : min= 20, max= 56, avg=39.23, stdev= 8.23, samples=62 write: IOPS=41, BW=164KiB/s (168kB/s)(5192KiB/31639msec); 0 zone resets slat (usec): min=54, max=8865, avg=344.18, stdev=681.98 clat (msec): min=44, max=364, avg=191.75, stdev=42.86 lat (msec): min=44, max=364, avg=192.10, stdev=42.82 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 123], 10.00th=[ 140], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 245], 95.00th=[ 266], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 359], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 95, max= 268, per=24.87%, avg=163.61, stdev=37.72, samples=62 iops : min= 23, max= 67, avg=40.45, stdev= 9.39, samples=62 lat (msec) : 50=0.12%, 100=1.05%, 250=89.14%, 500=9.69% cpu : usr=0.30%, sys=2.10%, ctx=4326, 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=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=179926: Thu Sep 10 14:56:43 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4976KiB/31723msec) slat (usec): min=3380, max=65018, avg=14301.37, stdev=8114.17 clat (msec): min=37, max=376, avg=187.85, stdev=49.38 lat (msec): min=47, max=394, avg=202.16, stdev=50.94 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 118], 10.00th=[ 134], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 253], 95.00th=[ 284], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 368], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 95, max= 263, per=24.61%, avg=155.55, stdev=34.55, samples=62 iops : min= 23, max= 65, avg=38.44, stdev= 8.63, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5264KiB/31723msec); 0 zone resets slat (usec): min=52, max=20619, avg=396.28, stdev=1112.40 clat (msec): min=37, max=384, avg=191.78, stdev=45.80 lat (msec): min=37, max=384, avg=192.18, stdev=45.91 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 127], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 334], 99.90th=[ 368], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 48, max= 272, per=25.00%, avg=164.48, stdev=43.34, samples=62 iops : min= 12, max= 68, avg=40.66, stdev=10.84, samples=62 lat (msec) : 50=0.12%, 100=1.33%, 250=88.09%, 500=10.47% cpu : usr=0.23%, sys=1.97%, ctx=4225, 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=179927: Thu Sep 10 14:56:43 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4984KiB/31688msec) slat (usec): min=3181, max=60974, avg=14184.85, stdev=7591.43 clat (msec): min=86, max=356, avg=186.78, stdev=46.07 lat (msec): min=95, max=392, avg=200.97, stdev=48.06 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 222], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 70, max= 284, per=24.82%, avg=156.85, stdev=39.35, samples=62 iops : min= 17, max= 71, avg=38.76, stdev= 9.84, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5256KiB/31688msec); 0 zone resets slat (usec): min=51, max=23621, avg=381.72, stdev=1099.98 clat (msec): min=33, max=402, avg=192.67, stdev=45.07 lat (msec): min=34, max=402, avg=193.05, stdev=45.12 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 376], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 55, max= 264, per=25.04%, avg=164.77, stdev=38.47, samples=62 iops : min= 13, max= 66, avg=40.71, stdev= 9.58, samples=62 lat (msec) : 50=0.04%, 100=0.62%, 250=89.53%, 500=9.80% cpu : usr=0.23%, sys=1.98%, ctx=4230, 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=179928: Thu Sep 10 14:56:43 2026 read: IOPS=39, BW=160KiB/s (163kB/s)(5060KiB/31722msec) slat (usec): min=3227, max=92360, avg=14337.19, stdev=8079.81 clat (msec): min=11, max=394, avg=186.83, stdev=47.74 lat (msec): min=22, max=431, avg=201.17, stdev=49.52 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 117], 10.00th=[ 132], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 245], 95.00th=[ 275], | 99.00th=[ 334], 99.50th=[ 372], 99.90th=[ 393], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 64, max= 239, per=25.05%, avg=158.31, stdev=38.18, samples=62 iops : min= 16, max= 59, avg=39.10, stdev= 9.49, samples=62 write: IOPS=40, BW=163KiB/s (167kB/s)(5180KiB/31722msec); 0 zone resets slat (usec): min=55, max=13786, avg=394.73, stdev=979.36 clat (msec): min=22, max=362, avg=192.48, stdev=47.02 lat (msec): min=22, max=365, avg=192.88, stdev=47.13 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 255], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 95, max= 269, per=24.59%, avg=161.79, stdev=40.40, samples=62 iops : min= 23, max= 67, avg=40.00, stdev=10.09, samples=62 lat (msec) : 20=0.04%, 50=0.35%, 100=0.82%, 250=88.75%, 500=10.04% cpu : usr=0.23%, sys=2.00%, ctx=4404, 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=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=633KiB/s (648kB/s), 157KiB/s-160KiB/s (161kB/s-163kB/s), io=19.6MiB (20.5MB), run=31639-31723msec WRITE: bw=659KiB/s (674kB/s), 163KiB/s-166KiB/s (167kB/s-170kB/s), io=20.4MiB (21.4MB), run=31639-31723msec 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=179938: Thu Sep 10 14:56:52 2026 read: IOPS=1, BW=68.3MiB/s (71.6MB/s)(40.0MiB/586msec) slat (nsec): min=31623k, max=31623k, avg=31623213.00, stdev= 0.00 clat (nsec): min=526060k, max=526060k, avg=526060057.00, stdev= 0.00 lat (nsec): min=557689k, max=557689k, avg=557689276.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 527], 10.00th=[ 527], 20.00th=[ 527], | 30.00th=[ 527], 40.00th=[ 527], 50.00th=[ 527], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.22%, ctx=4, 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=68.3MiB/s (71.6MB/s), 68.3MiB/s-68.3MiB/s (71.6MB/s-71.6MB/s), io=40.0MiB (41.9MB), run=586-586msec 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