== sanity test 398c: run fio to test AIO ================= 23:24:55 (1788924295) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.692236 s, 60.6 MB/s osc.lustre-OST0000-osc-ffff9aad8812c800.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=179532: Tue Sep 8 23:25:35 2026 write: IOPS=80, BW=321KiB/s (329kB/s)(10.0MiB/31878msec); 0 zone resets slat (usec): min=28, max=38397, avg=238.88, stdev=1106.42 clat (msec): min=24, max=450, avg=197.80, stdev=64.18 lat (msec): min=24, max=450, avg=198.04, stdev=64.14 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 111], 10.00th=[ 128], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 220], 80.00th=[ 251], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 393], 99.50th=[ 409], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 151, max= 494, per=24.97%, avg=319.59, stdev=88.13, samples=63 iops : min= 37, max= 123, avg=79.46, stdev=22.04, samples=63 lat (msec) : 50=0.23%, 100=3.59%, 250=76.17%, 500=20.00% cpu : usr=0.16%, sys=0.97%, ctx=2498, 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=179533: Tue Sep 8 23:25:35 2026 write: IOPS=80, BW=320KiB/s (328kB/s)(10.0MiB/31973msec); 0 zone resets slat (usec): min=28, max=32773, avg=198.65, stdev=1038.89 clat (msec): min=49, max=485, avg=198.20, stdev=63.65 lat (msec): min=49, max=485, avg=198.40, stdev=63.68 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 112], 10.00th=[ 128], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 251], 90.00th=[ 292], 95.00th=[ 313], | 99.00th=[ 384], 99.50th=[ 393], 99.90th=[ 435], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 127, max= 510, per=24.97%, avg=319.65, stdev=89.14, samples=63 iops : min= 31, max= 127, avg=79.49, stdev=22.31, samples=63 lat (msec) : 50=0.04%, 100=3.63%, 250=76.13%, 500=20.20% cpu : usr=0.16%, sys=0.76%, ctx=2167, 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=179534: Tue Sep 8 23:25:35 2026 write: IOPS=80, BW=320KiB/s (328kB/s)(10.0MiB/31987msec); 0 zone resets slat (usec): min=26, max=24478, avg=204.13, stdev=875.71 clat (msec): min=35, max=441, avg=198.35, stdev=62.98 lat (msec): min=35, max=441, avg=198.56, stdev=63.01 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 111], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 190], 60.00th=[ 205], | 70.00th=[ 222], 80.00th=[ 249], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 443] bw ( KiB/s): min= 143, max= 510, per=24.96%, avg=319.46, stdev=85.26, samples=63 iops : min= 35, max= 127, avg=79.44, stdev=21.33, samples=63 lat (msec) : 50=0.12%, 100=3.91%, 250=76.37%, 500=19.61% cpu : usr=0.14%, sys=0.91%, ctx=2448, 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=179535: Tue Sep 8 23:25:35 2026 write: IOPS=80, BW=321KiB/s (329kB/s)(10.0MiB/31878msec); 0 zone resets slat (usec): min=25, max=33064, avg=229.49, stdev=1169.29 clat (msec): min=28, max=418, avg=198.68, stdev=62.16 lat (msec): min=28, max=418, avg=198.91, stdev=62.19 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 110], 10.00th=[ 128], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 203], | 70.00th=[ 222], 80.00th=[ 245], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 380], 99.50th=[ 397], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 144, max= 527, per=24.94%, avg=319.29, stdev=87.25, samples=63 iops : min= 36, max= 131, avg=79.40, stdev=21.80, samples=63 lat (msec) : 50=0.20%, 100=2.81%, 250=77.70%, 500=19.30% cpu : usr=0.17%, sys=0.96%, ctx=2569, 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 Run status group 0 (all jobs): WRITE: bw=1281KiB/s (1311kB/s), 320KiB/s-321KiB/s (328kB/s-329kB/s), io=40.0MiB (41.9MB), run=31878-31987msec 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=179551: Tue Sep 8 23:26:13 2026 read: IOPS=39, BW=156KiB/s (160kB/s)(5048KiB/32354msec) slat (usec): min=3057, max=61119, avg=14151.55, stdev=7907.27 clat (msec): min=19, max=414, avg=189.91, stdev=46.50 lat (msec): min=37, max=440, avg=204.08, stdev=48.49 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 405], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 86, max= 232, per=24.79%, avg=153.71, stdev=31.18, samples=63 iops : min= 21, max= 58, avg=37.87, stdev= 7.84, samples=63 write: IOPS=40, BW=160KiB/s (164kB/s)(5192KiB/32354msec); 0 zone resets slat (usec): min=31, max=12465, avg=228.80, stdev=708.28 clat (msec): min=18, max=374, avg=196.62, stdev=46.41 lat (msec): min=19, max=374, avg=196.85, stdev=46.40 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 372], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 71, max= 263, per=24.54%, avg=158.29, stdev=38.54, samples=63 iops : min= 17, max= 65, avg=39.03, stdev= 9.65, samples=63 lat (msec) : 20=0.08%, 50=0.12%, 100=0.70%, 250=88.20%, 500=10.90% cpu : usr=0.24%, sys=1.77%, ctx=4418, 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=179552: Tue Sep 8 23:26:13 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4976KiB/32138msec) slat (usec): min=52, max=66880, avg=13752.59, stdev=7492.15 clat (msec): min=53, max=416, avg=190.63, stdev=44.50 lat (msec): min=53, max=428, avg=204.39, stdev=45.98 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 351], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 79, max= 248, per=24.77%, avg=153.60, stdev=35.75, samples=63 iops : min= 19, max= 62, avg=37.84, stdev= 8.96, samples=63 write: IOPS=40, BW=164KiB/s (168kB/s)(5264KiB/32138msec); 0 zone resets slat (usec): min=30, max=16834, avg=253.06, stdev=968.83 clat (msec): min=57, max=381, avg=196.55, stdev=43.53 lat (msec): min=57, max=381, avg=196.80, stdev=43.52 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 134], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 368], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 95, max= 263, per=25.30%, avg=163.19, stdev=35.99, samples=63 iops : min= 23, max= 65, avg=40.25, stdev= 9.06, samples=63 lat (msec) : 100=0.23%, 250=89.77%, 500=10.00% cpu : usr=0.19%, sys=1.73%, ctx=4367, 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=179553: Tue Sep 8 23:26:13 2026 read: IOPS=38, BW=154KiB/s (158kB/s)(4984KiB/32274msec) slat (usec): min=2809, max=66628, avg=13935.89, stdev=7786.04 clat (msec): min=79, max=388, avg=190.91, stdev=44.87 lat (msec): min=86, max=401, avg=204.85, stdev=46.31 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 131], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 384], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 71, max= 231, per=24.80%, avg=153.76, stdev=33.80, samples=63 iops : min= 17, max= 57, avg=37.87, stdev= 8.50, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5256KiB/32274msec); 0 zone resets slat (usec): min=30, max=9892, avg=224.97, stdev=721.82 clat (msec): min=77, max=378, avg=195.25, stdev=42.83 lat (msec): min=78, max=379, avg=195.48, stdev=42.82 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 334], 99.50th=[ 347], 99.90th=[ 372], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 79, max= 240, per=24.98%, avg=161.10, stdev=37.87, samples=63 iops : min= 19, max= 60, avg=39.73, stdev= 9.51, samples=63 lat (msec) : 100=0.39%, 250=89.77%, 500=9.84% cpu : usr=0.20%, sys=1.69%, ctx=4387, 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=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=179554: Tue Sep 8 23:26:13 2026 read: IOPS=39, BW=157KiB/s (160kB/s)(5060KiB/32323msec) slat (usec): min=2924, max=66858, avg=14223.04, stdev=7863.46 clat (msec): min=66, max=429, avg=190.50, stdev=45.07 lat (msec): min=69, max=441, avg=204.73, stdev=46.96 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 317], 99.50th=[ 326], 99.90th=[ 409], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 70, max= 239, per=25.04%, avg=155.25, stdev=35.13, samples=63 iops : min= 17, max= 59, avg=38.27, stdev= 8.84, samples=63 write: IOPS=40, BW=160KiB/s (164kB/s)(5180KiB/32323msec); 0 zone resets slat (usec): min=29, max=12539, avg=224.26, stdev=770.55 clat (msec): min=69, max=417, avg=195.73, stdev=45.79 lat (msec): min=70, max=417, avg=195.96, stdev=45.78 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 128], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 228], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 71, max= 271, per=24.55%, avg=158.37, stdev=38.78, samples=63 iops : min= 17, max= 67, avg=39.05, stdev= 9.71, samples=63 lat (msec) : 100=0.70%, 250=89.02%, 500=10.27% cpu : usr=0.22%, sys=1.66%, ctx=4223, 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=620KiB/s (635kB/s), 154KiB/s-157KiB/s (158kB/s-160kB/s), io=19.6MiB (20.5MB), run=32138-32354msec WRITE: bw=646KiB/s (661kB/s), 160KiB/s-164KiB/s (164kB/s-168kB/s), io=20.4MiB (21.4MB), run=32138-32354msec 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=179562: Tue Sep 8 23:26:20 2026 read: IOPS=1, BW=69.6MiB/s (72.9MB/s)(40.0MiB/575msec) slat (nsec): min=59484k, max=59484k, avg=59484277.00, stdev= 0.00 clat (nsec): min=460202k, max=460202k, avg=460202345.00, stdev= 0.00 lat (nsec): min=519692k, max=519692k, avg=519692194.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.31%, ctx=7, 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=69.6MiB/s (72.9MB/s), 69.6MiB/s-69.6MiB/s (72.9MB/s-72.9MB/s), io=40.0MiB (41.9MB), run=575-575msec 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