== sanity test 398c: run fio to test AIO ================= 12:16:19 (1777565779) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.131374 s, 319 MB/s osc.lustre-OST0000-osc-ffff9f76452c6000.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=158964: Thu Apr 30 12:16:54 2026 write: IOPS=82, BW=329KiB/s (337kB/s)(10.0MiB/31108msec); 0 zone resets slat (usec): min=41, max=948, avg=226.04, stdev=105.31 clat (msec): min=34, max=328, avg=194.02, stdev=39.72 lat (msec): min=34, max=328, avg=194.25, stdev=39.74 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 194], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 245], 95.00th=[ 257], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 321], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 256, max= 610, per=25.00%, avg=328.69, stdev=54.28, samples=61 iops : min= 64, max= 152, avg=82.16, stdev=13.53, samples=61 lat (msec) : 50=0.62%, 100=1.88%, 250=90.00%, 500=7.50% cpu : usr=0.14%, sys=1.50%, ctx=2769, 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=158965: Thu Apr 30 12:16:54 2026 write: IOPS=82, BW=329KiB/s (337kB/s)(10.0MiB/31130msec); 0 zone resets slat (usec): min=42, max=2070, avg=231.30, stdev=109.73 clat (msec): min=29, max=322, avg=194.10, stdev=38.32 lat (msec): min=29, max=322, avg=194.33, stdev=38.33 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 226], 90.00th=[ 243], 95.00th=[ 257], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 321] bw ( KiB/s): min= 240, max= 559, per=24.94%, avg=327.98, stdev=51.79, samples=61 iops : min= 60, max= 139, avg=81.98, stdev=12.89, samples=61 lat (msec) : 50=0.04%, 100=1.84%, 250=91.29%, 500=6.84% cpu : usr=0.12%, sys=1.52%, ctx=2840, 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=158966: Thu Apr 30 12:16:54 2026 write: IOPS=82, BW=330KiB/s (338kB/s)(10.0MiB/31011msec); 0 zone resets slat (usec): min=42, max=831, avg=229.55, stdev=103.31 clat (msec): min=27, max=400, avg=193.49, stdev=41.15 lat (msec): min=27, max=400, avg=193.72, stdev=41.17 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 133], 10.00th=[ 150], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 245], 95.00th=[ 257], | 99.00th=[ 279], 99.50th=[ 296], 99.90th=[ 384], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 256, max= 635, per=25.07%, avg=329.62, stdev=57.13, samples=61 iops : min= 64, max= 158, avg=82.39, stdev=14.22, samples=61 lat (msec) : 50=0.62%, 100=2.03%, 250=89.77%, 500=7.58% cpu : usr=0.15%, sys=1.51%, ctx=2789, 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=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=158967: Thu Apr 30 12:16:54 2026 write: IOPS=82, BW=329KiB/s (337kB/s)(10.0MiB/31108msec); 0 zone resets slat (usec): min=47, max=856, avg=234.63, stdev=102.19 clat (msec): min=16, max=359, avg=193.99, stdev=39.80 lat (msec): min=17, max=359, avg=194.22, stdev=39.80 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 347], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 256, max= 597, per=25.00%, avg=328.74, stdev=54.85, samples=61 iops : min= 64, max= 149, avg=82.18, stdev=13.69, samples=61 lat (msec) : 20=0.08%, 50=0.20%, 100=1.91%, 250=90.31%, 500=7.50% cpu : usr=0.11%, sys=1.60%, ctx=2866, 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=1316KiB/s (1347kB/s), 329KiB/s-330KiB/s (337kB/s-338kB/s), io=40.0MiB (41.9MB), run=31011-31130msec 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=158981: Thu Apr 30 12:17:18 2026 read: IOPS=58, BW=234KiB/s (240kB/s)(5048KiB/21531msec) slat (usec): min=42, max=7226, avg=2729.72, stdev=979.22 clat (msec): min=4, max=209, avg=85.43, stdev=17.81 lat (msec): min=8, max=214, avg=88.16, stdev=18.02 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 60], 10.00th=[ 66], 20.00th=[ 73], | 30.00th=[ 78], 40.00th=[ 82], 50.00th=[ 86], 60.00th=[ 89], | 70.00th=[ 94], 80.00th=[ 99], 90.00th=[ 107], 95.00th=[ 113], | 99.00th=[ 124], 99.50th=[ 136], 99.90th=[ 207], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 144, max= 320, per=25.24%, avg=235.02, stdev=45.17, samples=42 iops : min= 36, max= 80, avg=58.74, stdev=11.29, samples=42 write: IOPS=60, BW=241KiB/s (247kB/s)(5192KiB/21531msec); 0 zone resets slat (usec): min=43, max=709, avg=199.07, stdev=94.82 clat (msec): min=27, max=310, avg=179.25, stdev=38.65 lat (msec): min=27, max=310, avg=179.45, stdev=38.65 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 112], 10.00th=[ 132], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 197], 80.00th=[ 209], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 176, max= 328, per=24.90%, avg=241.26, stdev=35.29, samples=42 iops : min= 44, max= 82, avg=60.31, stdev= 8.82, samples=42 lat (msec) : 10=0.16%, 20=0.08%, 50=0.70%, 100=40.74%, 250=56.48% lat (msec) : 500=1.84% cpu : usr=0.20%, sys=2.21%, ctx=4970, 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=158982: Thu Apr 30 12:17:18 2026 read: IOPS=57, BW=231KiB/s (237kB/s)(4976KiB/21545msec) slat (usec): min=1134, max=9431, avg=2723.74, stdev=957.36 clat (msec): min=4, max=166, avg=85.01, stdev=17.53 lat (msec): min=6, max=171, avg=87.74, stdev=17.69 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 61], 10.00th=[ 67], 20.00th=[ 72], | 30.00th=[ 78], 40.00th=[ 82], 50.00th=[ 85], 60.00th=[ 89], | 70.00th=[ 94], 80.00th=[ 99], 90.00th=[ 107], 95.00th=[ 112], | 99.00th=[ 126], 99.50th=[ 140], 99.90th=[ 165], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 144, max= 336, per=24.79%, avg=230.79, stdev=49.27, samples=42 iops : min= 36, max= 84, avg=57.69, stdev=12.32, samples=42 write: IOPS=61, BW=244KiB/s (250kB/s)(5264KiB/21545msec); 0 zone resets slat (usec): min=47, max=690, avg=197.32, stdev=94.75 clat (msec): min=34, max=284, avg=178.36, stdev=39.39 lat (msec): min=35, max=284, avg=178.56, stdev=39.40 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 109], 10.00th=[ 130], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 247], | 99.00th=[ 264], 99.50th=[ 275], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 184, max= 368, per=25.23%, avg=244.48, stdev=37.17, samples=42 iops : min= 46, max= 92, avg=61.12, stdev= 9.29, samples=42 lat (msec) : 10=0.20%, 20=0.35%, 50=0.20%, 100=40.90%, 250=56.48% lat (msec) : 500=1.88% cpu : usr=0.17%, sys=2.24%, ctx=4931, 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=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=158983: Thu Apr 30 12:17:18 2026 read: IOPS=57, BW=231KiB/s (237kB/s)(4984KiB/21545msec) slat (usec): min=1125, max=6023, avg=2756.14, stdev=958.11 clat (msec): min=3, max=196, avg=85.02, stdev=16.49 lat (msec): min=5, max=201, avg=87.78, stdev=16.69 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 66], 20.00th=[ 72], | 30.00th=[ 79], 40.00th=[ 82], 50.00th=[ 86], 60.00th=[ 89], | 70.00th=[ 93], 80.00th=[ 97], 90.00th=[ 106], 95.00th=[ 110], | 99.00th=[ 123], 99.50th=[ 133], 99.90th=[ 155], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 152, max= 360, per=24.99%, avg=232.69, stdev=48.74, samples=42 iops : min= 38, max= 90, avg=58.17, stdev=12.19, samples=42 write: IOPS=60, BW=244KiB/s (250kB/s)(5256KiB/21545msec); 0 zone resets slat (usec): min=58, max=912, avg=199.63, stdev=96.00 clat (msec): min=36, max=284, avg=178.48, stdev=37.99 lat (msec): min=36, max=284, avg=178.68, stdev=37.99 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 113], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 207], 90.00th=[ 232], 95.00th=[ 245], | 99.00th=[ 268], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 176, max= 312, per=25.10%, avg=243.24, stdev=34.54, samples=42 iops : min= 44, max= 78, avg=60.81, stdev= 8.63, samples=42 lat (msec) : 4=0.04%, 10=0.04%, 20=0.27%, 50=0.27%, 100=41.72% lat (msec) : 250=55.82%, 500=1.84% cpu : usr=0.17%, sys=2.21%, ctx=4901, 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=158984: Thu Apr 30 12:17:18 2026 read: IOPS=58, BW=235KiB/s (240kB/s)(5060KiB/21545msec) slat (usec): min=1147, max=6122, avg=2712.59, stdev=948.47 clat (msec): min=3, max=133, avg=85.32, stdev=16.12 lat (msec): min=5, max=137, avg=88.03, stdev=16.28 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 67], 20.00th=[ 72], | 30.00th=[ 78], 40.00th=[ 83], 50.00th=[ 86], 60.00th=[ 90], | 70.00th=[ 94], 80.00th=[ 99], 90.00th=[ 106], 95.00th=[ 111], | 99.00th=[ 123], 99.50th=[ 128], 99.90th=[ 134], 99.95th=[ 134], | 99.99th=[ 134] bw ( KiB/s): min= 160, max= 336, per=25.34%, avg=235.93, stdev=37.57, samples=42 iops : min= 40, max= 84, avg=58.98, stdev= 9.40, samples=42 write: IOPS=60, BW=240KiB/s (246kB/s)(5180KiB/21545msec); 0 zone resets slat (usec): min=63, max=933, avg=202.50, stdev=98.20 clat (msec): min=73, max=293, avg=179.44, stdev=38.05 lat (msec): min=73, max=293, avg=179.64, stdev=38.05 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 113], 10.00th=[ 130], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 247], | 99.00th=[ 268], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 176, max= 328, per=24.80%, avg=240.31, stdev=34.01, samples=42 iops : min= 44, max= 82, avg=60.07, stdev= 8.50, samples=42 lat (msec) : 4=0.08%, 10=0.08%, 20=0.20%, 50=0.08%, 100=41.68% lat (msec) : 250=55.78%, 500=2.11% cpu : usr=0.20%, sys=2.19%, ctx=4994, 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=931KiB/s (954kB/s), 231KiB/s-235KiB/s (237kB/s-240kB/s), io=19.6MiB (20.5MB), run=21531-21545msec WRITE: bw=970KiB/s (993kB/s), 240KiB/s-244KiB/s (246kB/s-250kB/s), io=20.4MiB (21.4MB), run=21531-21545msec 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=158990: Thu Apr 30 12:17:22 2026 read: IOPS=8, BW=328MiB/s (344MB/s)(40.0MiB/122msec) slat (nsec): min=10564k, max=10564k, avg=10563748.00, stdev= 0.00 clat (nsec): min=106531k, max=106531k, avg=106530728.00, stdev= 0.00 lat (nsec): min=117098k, max=117098k, avg=117098087.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 107], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 107], 60.00th=[ 107], | 70.00th=[ 107], 80.00th=[ 107], 90.00th=[ 107], 95.00th=[ 107], | 99.00th=[ 107], 99.50th=[ 107], 99.90th=[ 107], 99.95th=[ 107], | 99.99th=[ 107] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.61%, ctx=43, 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=328MiB/s (344MB/s), 328MiB/s-328MiB/s (344MB/s-344MB/s), io=40.0MiB (41.9MB), run=122-122msec 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