== sanity test 398c: run fio to test AIO ================= 09:49:50 (1789134590) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.531365 s, 78.9 MB/s osc.lustre-OST0000-osc-ffff9f231efd3800.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=179538: Fri Sep 11 09:50:30 2026 write: IOPS=87, BW=350KiB/s (358kB/s)(10.0MiB/29254msec); 0 zone resets slat (usec): min=25, max=18196, avg=190.35, stdev=838.56 clat (msec): min=25, max=383, avg=181.66, stdev=52.48 lat (msec): min=25, max=383, avg=181.85, stdev=52.48 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 108], 10.00th=[ 123], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 186], | 70.00th=[ 207], 80.00th=[ 230], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 384] bw ( KiB/s): min= 192, max= 636, per=24.93%, avg=348.57, stdev=92.04, samples=58 iops : min= 48, max= 159, avg=86.76, stdev=23.07, samples=58 lat (msec) : 50=0.08%, 100=2.62%, 250=84.73%, 500=12.58% cpu : usr=0.19%, sys=0.89%, ctx=2244, 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=179539: Fri Sep 11 09:50:30 2026 write: IOPS=87, BW=350KiB/s (358kB/s)(10.0MiB/29254msec); 0 zone resets slat (usec): min=23, max=13782, avg=157.65, stdev=631.76 clat (msec): min=18, max=359, avg=181.71, stdev=52.28 lat (msec): min=18, max=359, avg=181.87, stdev=52.28 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 110], 10.00th=[ 122], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 188], | 70.00th=[ 207], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 167, max= 636, per=24.93%, avg=348.55, stdev=91.83, samples=58 iops : min= 41, max= 159, avg=86.74, stdev=23.01, samples=58 lat (msec) : 20=0.04%, 50=0.04%, 100=2.50%, 250=84.34%, 500=13.09% cpu : usr=0.10%, sys=0.79%, ctx=1778, 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=179540: Fri Sep 11 09:50:30 2026 write: IOPS=87, BW=350KiB/s (358kB/s)(10.0MiB/29287msec); 0 zone resets slat (usec): min=22, max=10495, avg=169.95, stdev=620.36 clat (msec): min=19, max=338, avg=181.86, stdev=51.37 lat (msec): min=20, max=338, avg=182.03, stdev=51.35 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 111], 10.00th=[ 121], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 188], | 70.00th=[ 209], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 271], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 338] bw ( KiB/s): min= 160, max= 596, per=24.94%, avg=348.60, stdev=88.57, samples=58 iops : min= 40, max= 149, avg=86.72, stdev=22.18, samples=58 lat (msec) : 20=0.04%, 50=0.08%, 100=1.56%, 250=85.66%, 500=12.66% cpu : usr=0.12%, sys=0.80%, ctx=2064, 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=179541: Fri Sep 11 09:50:30 2026 write: IOPS=88, BW=352KiB/s (361kB/s)(10.0MiB/29061msec); 0 zone resets slat (usec): min=23, max=20396, avg=204.33, stdev=856.05 clat (msec): min=22, max=493, avg=181.03, stdev=54.47 lat (msec): min=22, max=493, avg=181.24, stdev=54.45 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 107], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 188], | 70.00th=[ 207], 80.00th=[ 230], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 493] bw ( KiB/s): min= 184, max= 590, per=25.27%, avg=353.30, stdev=90.56, samples=57 iops : min= 46, max= 147, avg=87.91, stdev=22.68, samples=57 lat (msec) : 50=0.35%, 100=3.20%, 250=83.98%, 500=12.46% cpu : usr=0.24%, sys=1.02%, ctx=2845, 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=1399KiB/s (1432kB/s), 350KiB/s-352KiB/s (358kB/s-361kB/s), io=40.0MiB (41.9MB), run=29061-29287msec 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=179556: Fri Sep 11 09:51:12 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(5048KiB/31671msec) slat (usec): min=106, max=59322, avg=14097.83, stdev=8139.55 clat (msec): min=10, max=407, avg=185.84, stdev=53.40 lat (msec): min=16, max=419, avg=199.94, stdev=55.87 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 115], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 226], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 347], 99.90th=[ 388], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 64, max= 280, per=24.79%, avg=156.94, stdev=42.58, samples=62 iops : min= 16, max= 70, avg=38.76, stdev=10.76, samples=62 write: IOPS=40, BW=164KiB/s (168kB/s)(5192KiB/31671msec); 0 zone resets slat (usec): min=27, max=31736, avg=224.07, stdev=1161.57 clat (msec): min=18, max=396, avg=192.95, stdev=54.48 lat (msec): min=18, max=396, avg=193.18, stdev=54.50 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 236], 90.00th=[ 268], 95.00th=[ 296], | 99.00th=[ 355], 99.50th=[ 376], 99.90th=[ 388], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 43, max= 304, per=24.58%, avg=162.00, stdev=45.14, samples=62 iops : min= 10, max= 76, avg=40.00, stdev=11.42, samples=62 lat (msec) : 20=0.20%, 50=0.23%, 100=1.13%, 250=84.02%, 500=14.41% cpu : usr=0.30%, sys=1.64%, ctx=4360, 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=179557: Fri Sep 11 09:51:12 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(4976KiB/31524msec) slat (usec): min=39, max=77976, avg=14109.11, stdev=8323.56 clat (msec): min=31, max=385, avg=186.45, stdev=52.34 lat (msec): min=49, max=432, avg=200.56, stdev=54.76 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 120], 10.00th=[ 128], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 226], 90.00th=[ 259], 95.00th=[ 292], | 99.00th=[ 334], 99.50th=[ 347], 99.90th=[ 359], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 55, max= 264, per=24.72%, avg=156.47, stdev=43.03, samples=62 iops : min= 13, max= 66, avg=38.61, stdev=10.88, samples=62 write: IOPS=41, BW=167KiB/s (171kB/s)(5264KiB/31524msec); 0 zone resets slat (usec): min=23, max=10853, avg=171.85, stdev=511.81 clat (msec): min=96, max=383, avg=193.02, stdev=51.11 lat (msec): min=96, max=383, avg=193.20, stdev=51.14 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 129], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 230], 90.00th=[ 268], 95.00th=[ 296], | 99.00th=[ 342], 99.50th=[ 368], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 63, max= 272, per=25.28%, avg=166.61, stdev=45.91, samples=62 iops : min= 15, max= 68, avg=41.16, stdev=11.62, samples=62 lat (msec) : 50=0.04%, 100=0.90%, 250=85.98%, 500=13.09% cpu : usr=0.30%, sys=1.57%, ctx=4123, 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=179558: Fri Sep 11 09:51:12 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(4984KiB/31581msec) slat (usec): min=2063, max=66458, avg=13920.81, stdev=8140.33 clat (msec): min=36, max=432, avg=188.45, stdev=54.67 lat (msec): min=43, max=451, avg=202.37, stdev=57.04 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 114], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 228], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 426], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 64, max= 246, per=24.82%, avg=157.11, stdev=41.31, samples=62 iops : min= 16, max= 61, avg=38.81, stdev=10.38, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5256KiB/31581msec); 0 zone resets slat (usec): min=24, max=14912, avg=197.60, stdev=740.01 clat (msec): min=87, max=398, avg=190.10, stdev=50.03 lat (msec): min=87, max=398, avg=190.30, stdev=50.06 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 259], 95.00th=[ 292], | 99.00th=[ 351], 99.50th=[ 368], 99.90th=[ 388], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 63, max= 288, per=25.06%, avg=165.11, stdev=51.23, samples=62 iops : min= 15, max= 72, avg=40.77, stdev=12.96, samples=62 lat (msec) : 50=0.12%, 100=1.13%, 250=85.59%, 500=13.16% cpu : usr=0.32%, sys=2.00%, ctx=4226, 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=179559: Fri Sep 11 09:51:12 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(5060KiB/31596msec) slat (usec): min=2663, max=67773, avg=13603.09, stdev=8039.66 clat (msec): min=37, max=402, avg=183.87, stdev=50.68 lat (msec): min=48, max=417, avg=197.48, stdev=52.92 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 115], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 388], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 50, max= 270, per=25.15%, avg=159.21, stdev=46.34, samples=62 iops : min= 12, max= 67, avg=39.32, stdev=11.71, samples=62 write: IOPS=40, BW=164KiB/s (168kB/s)(5180KiB/31596msec); 0 zone resets slat (usec): min=25, max=13934, avg=199.92, stdev=698.46 clat (msec): min=93, max=407, avg=194.46, stdev=52.15 lat (msec): min=93, max=407, avg=194.67, stdev=52.19 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 127], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 232], 90.00th=[ 266], 95.00th=[ 296], | 99.00th=[ 355], 99.50th=[ 359], 99.90th=[ 384], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 78, max= 288, per=24.69%, avg=162.69, stdev=41.24, samples=62 iops : min= 19, max= 72, avg=40.19, stdev=10.41, samples=62 lat (msec) : 50=0.04%, 100=0.66%, 250=86.95%, 500=12.34% cpu : usr=0.27%, sys=1.85%, ctx=4393, 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=634KiB/s (649kB/s), 158KiB/s-160KiB/s (162kB/s-164kB/s), io=19.6MiB (20.5MB), run=31524-31671msec WRITE: bw=660KiB/s (675kB/s), 164KiB/s-167KiB/s (168kB/s-171kB/s), io=20.4MiB (21.4MB), run=31524-31671msec 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=179567: Fri Sep 11 09:51:19 2026 read: IOPS=1, BW=69.2MiB/s (72.6MB/s)(40.0MiB/578msec) slat (nsec): min=92888k, max=92888k, avg=92887530.00, stdev= 0.00 clat (nsec): min=446899k, max=446899k, avg=446898675.00, stdev= 0.00 lat (nsec): min=539790k, max=539790k, avg=539790498.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.77%, ctx=14, majf=0, minf=9 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=69.2MiB/s (72.6MB/s), 69.2MiB/s-69.2MiB/s (72.6MB/s-72.6MB/s), io=40.0MiB (41.9MB), run=578-578msec 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