== sanity test 398c: run fio to test AIO ================= 04:06:05 (1785398765) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.539569 s, 77.7 MB/s osc.lustre-OST0000-osc-ffff9b21d0e36800.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=145114: Thu Jul 30 04:11:16 2026 write: IOPS=8, BW=34.5KiB/s (35.4kB/s)(10.0MiB/296487msec); 0 zone resets slat (usec): min=45, max=21800, avg=206.02, stdev=856.55 clat (msec): min=218, max=3956, avg=1852.08, stdev=576.52 lat (msec): min=218, max=3957, avg=1852.29, stdev=576.55 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 835], 10.00th=[ 1183], 20.00th=[ 1435], | 30.00th=[ 1603], 40.00th=[ 1737], 50.00th=[ 1871], 60.00th=[ 1972], | 70.00th=[ 2089], 80.00th=[ 2265], 90.00th=[ 2534], 95.00th=[ 2802], | 99.00th=[ 3339], 99.50th=[ 3574], 99.90th=[ 3876], 99.95th=[ 3943], | 99.99th=[ 3943] bw ( KiB/s): min= 7, max= 256, per=28.93%, avg=39.92, stdev=29.32, samples=501 iops : min= 1, max= 64, avg= 9.49, stdev= 7.36, samples=501 lat (msec) : 250=0.78%, 500=1.72%, 750=1.25%, 1000=2.81%, 2000=55.82% lat (msec) : >=2000=37.62% cpu : usr=0.02%, sys=0.11%, ctx=1429, 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=145115: Thu Jul 30 04:11:16 2026 write: IOPS=8, BW=34.5KiB/s (35.4kB/s)(10.0MiB/296485msec); 0 zone resets slat (usec): min=48, max=21841, avg=226.69, stdev=911.00 clat (msec): min=90, max=3941, avg=1851.54, stdev=565.97 lat (msec): min=91, max=3944, avg=1851.76, stdev=566.00 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 818], 10.00th=[ 1167], 20.00th=[ 1435], | 30.00th=[ 1603], 40.00th=[ 1737], 50.00th=[ 1871], 60.00th=[ 1972], | 70.00th=[ 2106], 80.00th=[ 2265], 90.00th=[ 2534], 95.00th=[ 2702], | 99.00th=[ 3306], 99.50th=[ 3540], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3943] bw ( KiB/s): min= 7, max= 143, per=26.70%, avg=36.85, stdev=22.45, samples=542 iops : min= 1, max= 35, avg= 8.71, stdev= 5.64, samples=542 lat (msec) : 100=0.04%, 250=0.12%, 500=1.95%, 750=1.76%, 1000=3.48% lat (msec) : 2000=54.88%, >=2000=37.77% cpu : usr=0.02%, sys=0.13%, ctx=1702, 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=145116: Thu Jul 30 04:11:16 2026 write: IOPS=8, BW=34.6KiB/s (35.4kB/s)(10.0MiB/296357msec); 0 zone resets slat (usec): min=46, max=18748, avg=195.10, stdev=848.25 clat (msec): min=230, max=4130, avg=1850.23, stdev=566.93 lat (msec): min=231, max=4130, avg=1850.43, stdev=566.95 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 835], 10.00th=[ 1167], 20.00th=[ 1452], | 30.00th=[ 1603], 40.00th=[ 1737], 50.00th=[ 1838], 60.00th=[ 1955], | 70.00th=[ 2089], 80.00th=[ 2299], 90.00th=[ 2567], 95.00th=[ 2836], | 99.00th=[ 3104], 99.50th=[ 3306], 99.90th=[ 3842], 99.95th=[ 3943], | 99.99th=[ 4144] bw ( KiB/s): min= 7, max= 135, per=27.69%, avg=38.21, stdev=26.95, samples=523 iops : min= 1, max= 33, avg= 9.04, stdev= 6.76, samples=523 lat (msec) : 250=0.04%, 500=2.50%, 750=1.48%, 1000=3.01%, 2000=56.05% lat (msec) : >=2000=36.91% cpu : usr=0.02%, sys=0.11%, ctx=1363, 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=145117: Thu Jul 30 04:11:16 2026 write: IOPS=8, BW=34.5KiB/s (35.4kB/s)(10.0MiB/296483msec); 0 zone resets slat (usec): min=45, max=15959, avg=239.11, stdev=998.81 clat (msec): min=291, max=3807, avg=1851.14, stdev=561.16 lat (msec): min=291, max=3807, avg=1851.38, stdev=561.16 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 827], 10.00th=[ 1183], 20.00th=[ 1435], | 30.00th=[ 1620], 40.00th=[ 1754], 50.00th=[ 1854], 60.00th=[ 1972], | 70.00th=[ 2089], 80.00th=[ 2299], 90.00th=[ 2534], 95.00th=[ 2769], | 99.00th=[ 3205], 99.50th=[ 3373], 99.90th=[ 3507], 99.95th=[ 3809], | 99.99th=[ 3809] bw ( KiB/s): min= 7, max= 128, per=26.66%, avg=36.78, stdev=22.00, samples=543 iops : min= 1, max= 32, avg= 8.69, stdev= 5.52, samples=543 lat (msec) : 500=2.34%, 750=1.48%, 1000=3.36%, 2000=55.90%, >=2000=36.91% cpu : usr=0.02%, sys=0.11%, ctx=1489, 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=138KiB/s (141kB/s), 34.5KiB/s-34.6KiB/s (35.4kB/s-35.4kB/s), io=40.0MiB (41.9MB), run=296357-296487msec 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=145169: Thu Jul 30 04:14:26 2026 read: IOPS=7, BW=28.7KiB/s (29.4kB/s)(5048KiB/175700msec) slat (msec): min=2, max=100, avg=18.89, stdev=12.40 clat (msec): min=27, max=1497, avg=672.70, stdev=224.16 lat (msec): min=31, max=1533, avg=691.60, stdev=226.90 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 309], 10.00th=[ 363], 20.00th=[ 485], | 30.00th=[ 558], 40.00th=[ 609], 50.00th=[ 676], 60.00th=[ 735], | 70.00th=[ 785], 80.00th=[ 852], 90.00th=[ 969], 95.00th=[ 1045], | 99.00th=[ 1217], 99.50th=[ 1234], 99.90th=[ 1351], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 7, max= 119, per=26.26%, avg=29.94, stdev=16.98, samples=329 iops : min= 1, max= 29, avg= 7.06, stdev= 4.30, samples=329 write: IOPS=7, BW=29.5KiB/s (30.3kB/s)(5192KiB/175700msec); 0 zone resets slat (usec): min=51, max=19983, avg=274.59, stdev=1026.54 clat (msec): min=362, max=3410, avg=1488.83, stdev=494.97 lat (msec): min=362, max=3410, avg=1489.11, stdev=495.03 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 743], 10.00th=[ 844], 20.00th=[ 1053], | 30.00th=[ 1217], 40.00th=[ 1351], 50.00th=[ 1485], 60.00th=[ 1603], | 70.00th=[ 1737], 80.00th=[ 1871], 90.00th=[ 2106], 95.00th=[ 2333], | 99.00th=[ 2903], 99.50th=[ 3004], 99.90th=[ 3339], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min= 7, max= 112, per=25.31%, avg=29.87, stdev=18.36, samples=338 iops : min= 1, max= 28, avg= 7.04, stdev= 4.68, samples=338 lat (msec) : 50=0.12%, 100=0.08%, 250=0.59%, 500=10.39%, 750=22.30% lat (msec) : 1000=21.17%, 2000=38.24%, >=2000=7.11% cpu : usr=0.07%, sys=0.37%, ctx=4048, 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=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=145170: Thu Jul 30 04:14:26 2026 read: IOPS=7, BW=28.3KiB/s (29.0kB/s)(4976KiB/175698msec) slat (usec): min=2439, max=88282, avg=18376.84, stdev=11676.62 clat (msec): min=30, max=1355, avg=670.12, stdev=224.23 lat (msec): min=55, max=1359, avg=688.50, stdev=226.93 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 305], 10.00th=[ 347], 20.00th=[ 477], | 30.00th=[ 558], 40.00th=[ 617], 50.00th=[ 676], 60.00th=[ 735], | 70.00th=[ 785], 80.00th=[ 860], 90.00th=[ 969], 95.00th=[ 1036], | 99.00th=[ 1150], 99.50th=[ 1200], 99.90th=[ 1234], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 112, per=26.04%, avg=29.68, stdev=17.50, samples=327 iops : min= 1, max= 28, avg= 6.98, stdev= 4.45, samples=327 write: IOPS=7, BW=29.0KiB/s (30.7kB/s)(5264KiB/175698msec); 0 zone resets slat (usec): min=50, max=14734, avg=253.34, stdev=828.74 clat (msec): min=333, max=3334, avg=1481.72, stdev=497.41 lat (msec): min=333, max=3334, avg=1481.97, stdev=497.41 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 743], 10.00th=[ 844], 20.00th=[ 1045], | 30.00th=[ 1200], 40.00th=[ 1351], 50.00th=[ 1469], 60.00th=[ 1586], | 70.00th=[ 1720], 80.00th=[ 1888], 90.00th=[ 2072], 95.00th=[ 2333], | 99.00th=[ 2970], 99.50th=[ 3037], 99.90th=[ 3339], 99.95th=[ 3339], | 99.99th=[ 3339] bw ( KiB/s): min= 7, max= 95, per=25.71%, avg=30.34, stdev=16.97, samples=337 iops : min= 1, max= 23, avg= 7.15, stdev= 4.28, samples=337 lat (msec) : 50=0.16%, 100=0.04%, 250=0.39%, 500=11.09%, 750=21.76% lat (msec) : 1000=20.86%, 2000=38.63%, >=2000=7.07% cpu : usr=0.05%, sys=0.36%, ctx=4015, 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=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=145171: Thu Jul 30 04:14:26 2026 read: IOPS=7, BW=28.4KiB/s (29.1kB/s)(4984KiB/175619msec) slat (usec): min=58, max=88647, avg=18494.48, stdev=11808.80 clat (msec): min=18, max=1362, avg=676.43, stdev=226.14 lat (msec): min=25, max=1373, avg=694.93, stdev=228.64 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 305], 10.00th=[ 368], 20.00th=[ 489], | 30.00th=[ 558], 40.00th=[ 625], 50.00th=[ 676], 60.00th=[ 735], | 70.00th=[ 793], 80.00th=[ 869], 90.00th=[ 961], 95.00th=[ 1053], | 99.00th=[ 1200], 99.50th=[ 1217], 99.90th=[ 1301], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 104, per=26.04%, avg=29.69, stdev=17.91, samples=328 iops : min= 1, max= 26, avg= 6.99, stdev= 4.52, samples=328 write: IOPS=7, BW=29.9KiB/s (30.6kB/s)(5256KiB/175619msec); 0 zone resets slat (usec): min=51, max=16200, avg=306.69, stdev=1075.60 clat (msec): min=202, max=3410, avg=1478.01, stdev=494.66 lat (msec): min=202, max=3410, avg=1478.32, stdev=494.68 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 726], 10.00th=[ 827], 20.00th=[ 1028], | 30.00th=[ 1217], 40.00th=[ 1351], 50.00th=[ 1469], 60.00th=[ 1586], | 70.00th=[ 1720], 80.00th=[ 1871], 90.00th=[ 2072], 95.00th=[ 2333], | 99.00th=[ 2869], 99.50th=[ 3004], 99.90th=[ 3205], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min= 7, max= 95, per=25.34%, avg=29.90, stdev=17.48, samples=340 iops : min= 1, max= 23, avg= 7.04, stdev= 4.42, samples=340 lat (msec) : 20=0.04%, 50=0.04%, 100=0.20%, 250=0.90%, 500=9.65% lat (msec) : 750=23.48%, 1000=20.43%, 2000=39.10%, >=2000=6.17% cpu : usr=0.05%, sys=0.34%, ctx=3704, 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=145172: Thu Jul 30 04:14:26 2026 read: IOPS=7, BW=28.8KiB/s (29.5kB/s)(5060KiB/175637msec) slat (usec): min=2147, max=81300, avg=18281.29, stdev=11818.92 clat (msec): min=16, max=1323, avg=668.51, stdev=227.01 lat (msec): min=23, max=1403, avg=686.80, stdev=229.92 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 300], 10.00th=[ 355], 20.00th=[ 472], | 30.00th=[ 550], 40.00th=[ 609], 50.00th=[ 676], 60.00th=[ 726], | 70.00th=[ 785], 80.00th=[ 852], 90.00th=[ 978], 95.00th=[ 1045], | 99.00th=[ 1183], 99.50th=[ 1234], 99.90th=[ 1301], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 112, per=26.27%, avg=29.95, stdev=18.70, samples=330 iops : min= 1, max= 28, avg= 7.05, stdev= 4.72, samples=330 write: IOPS=7, BW=29.5KiB/s (30.2kB/s)(5180KiB/175637msec); 0 zone resets slat (usec): min=52, max=13957, avg=256.55, stdev=804.28 clat (msec): min=329, max=3388, avg=1495.76, stdev=496.58 lat (msec): min=329, max=3389, avg=1496.01, stdev=496.56 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 760], 10.00th=[ 852], 20.00th=[ 1053], | 30.00th=[ 1217], 40.00th=[ 1368], 50.00th=[ 1469], 60.00th=[ 1586], | 70.00th=[ 1737], 80.00th=[ 1905], 90.00th=[ 2106], 95.00th=[ 2333], | 99.00th=[ 2903], 99.50th=[ 3037], 99.90th=[ 3272], 99.95th=[ 3373], | 99.99th=[ 3373] bw ( KiB/s): min= 7, max= 88, per=25.09%, avg=29.60, stdev=17.29, samples=339 iops : min= 1, max= 22, avg= 6.97, stdev= 4.39, samples=339 lat (msec) : 20=0.08%, 100=0.08%, 250=0.51%, 500=11.21%, 750=21.68% lat (msec) : 1000=20.43%, 2000=38.40%, >=2000=7.62% cpu : usr=0.07%, sys=0.39%, ctx=4247, 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=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=114KiB/s (117kB/s), 28.3KiB/s-28.8KiB/s (29.0kB/s-29.5kB/s), io=19.6MiB (20.5MB), run=175619-175700msec WRITE: bw=119KiB/s (122kB/s), 29.5KiB/s-29.0KiB/s (30.2kB/s-30.7kB/s), io=20.4MiB (21.4MB), run=175619-175700msec 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=145204: Thu Jul 30 04:14:39 2026 read: IOPS=1, BW=66.4MiB/s (69.7MB/s)(40.0MiB/602msec) slat (nsec): min=30011k, max=30011k, avg=30011164.00, stdev= 0.00 clat (nsec): min=548357k, max=548357k, avg=548357436.00, stdev= 0.00 lat (nsec): min=578373k, max=578373k, avg=578372658.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.00%, ctx=9, 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=66.4MiB/s (69.7MB/s), 66.4MiB/s-66.4MiB/s (69.7MB/s-69.7MB/s), io=40.0MiB (41.9MB), run=602-602msec 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