== sanity test 398c: run fio to test AIO ================= 00:46:45 (1788670005) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.584862 s, 71.7 MB/s osc.lustre-OST0000-osc-ffff980127962800.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=145613: Sun Sep 6 00:49:48 2026 write: IOPS=14, BW=59.6KiB/s (61.1kB/s)(10.0MiB/171680msec); 0 zone resets slat (usec): min=23, max=20302, avg=203.94, stdev=878.42 clat (msec): min=269, max=2389, avg=1072.07, stdev=357.69 lat (msec): min=269, max=2389, avg=1072.28, stdev=357.68 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1552], 95.00th=[ 1821], | 99.00th=[ 2123], 99.50th=[ 2232], 99.90th=[ 2299], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 144, per=25.33%, avg=60.28, stdev=29.66, samples=334 iops : min= 1, max= 36, avg=14.63, stdev= 7.46, samples=334 lat (msec) : 500=2.15%, 750=14.10%, 1000=31.95%, 2000=49.73%, >=2000=2.07% cpu : usr=0.05%, sys=0.20%, ctx=1930, 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=145614: Sun Sep 6 00:49:48 2026 write: IOPS=14, BW=59.6KiB/s (61.0kB/s)(10.0MiB/171821msec); 0 zone resets slat (usec): min=21, max=13967, avg=172.76, stdev=680.60 clat (msec): min=59, max=2287, avg=1072.97, stdev=353.25 lat (msec): min=59, max=2287, avg=1073.15, stdev=353.25 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 793], | 30.00th=[ 860], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1200], 80.00th=[ 1334], 90.00th=[ 1569], 95.00th=[ 1787], | 99.00th=[ 2123], 99.50th=[ 2198], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 136, per=27.42%, avg=65.26, stdev=33.49, samples=309 iops : min= 1, max= 34, avg=15.89, stdev= 8.38, samples=309 lat (msec) : 100=0.04%, 250=0.20%, 500=1.76%, 750=13.83%, 1000=33.05% lat (msec) : 2000=49.61%, >=2000=1.52% cpu : usr=0.04%, sys=0.18%, ctx=1831, 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=145615: Sun Sep 6 00:49:48 2026 write: IOPS=14, BW=59.7KiB/s (61.2kB/s)(10.0MiB/171383msec); 0 zone resets slat (usec): min=21, max=33472, avg=189.41, stdev=984.22 clat (msec): min=137, max=2408, avg=1070.57, stdev=359.41 lat (msec): min=137, max=2408, avg=1070.76, stdev=359.41 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 785], | 30.00th=[ 860], 40.00th=[ 936], 50.00th=[ 1020], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1318], 90.00th=[ 1552], 95.00th=[ 1770], | 99.00th=[ 2165], 99.50th=[ 2232], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 136, per=25.55%, avg=60.80, stdev=30.48, samples=331 iops : min= 1, max= 34, avg=14.75, stdev= 7.65, samples=331 lat (msec) : 250=0.62%, 500=1.29%, 750=14.38%, 1000=31.72%, 2000=49.65% lat (msec) : >=2000=2.34% cpu : usr=0.04%, sys=0.19%, ctx=1673, 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=145616: Sun Sep 6 00:49:48 2026 write: IOPS=14, BW=59.6KiB/s (61.0kB/s)(10.0MiB/171758msec); 0 zone resets slat (usec): min=22, max=16811, avg=186.30, stdev=794.68 clat (msec): min=272, max=2409, avg=1072.68, stdev=360.43 lat (msec): min=272, max=2410, avg=1072.86, stdev=360.44 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 785], | 30.00th=[ 860], 40.00th=[ 944], 50.00th=[ 1020], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1318], 90.00th=[ 1536], 95.00th=[ 1787], | 99.00th=[ 2198], 99.50th=[ 2299], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 176, per=26.38%, avg=62.78, stdev=31.22, samples=320 iops : min= 1, max= 44, avg=15.25, stdev= 7.84, samples=320 lat (msec) : 500=2.30%, 750=13.52%, 1000=31.09%, 2000=50.00%, >=2000=3.09% cpu : usr=0.04%, sys=0.19%, ctx=1876, 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=238KiB/s (244kB/s), 59.6KiB/s-59.7KiB/s (61.0kB/s-61.2kB/s), io=40.0MiB (41.9MB), run=171383-171821msec 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=145650: Sun Sep 6 00:51:48 2026 read: IOPS=11, BW=44.7KiB/s (45.7kB/s)(5048KiB/113056msec) slat (usec): min=2665, max=89784, avg=14859.74, stdev=8775.15 clat (msec): min=22, max=997, avg=429.40, stdev=119.85 lat (msec): min=44, max=1010, avg=444.27, stdev=121.59 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 275], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 363], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 443], | 70.00th=[ 481], 80.00th=[ 523], 90.00th=[ 592], 95.00th=[ 651], | 99.00th=[ 776], 99.50th=[ 785], 99.90th=[ 877], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 134, per=24.87%, avg=44.03, stdev=21.66, samples=224 iops : min= 1, max= 33, avg=10.56, stdev= 5.43, samples=224 write: IOPS=11, BW=45.9KiB/s (47.0kB/s)(5192KiB/113056msec); 0 zone resets slat (usec): min=28, max=40505, avg=239.12, stdev=1301.21 clat (msec): min=255, max=1868, avg=958.96, stdev=231.70 lat (msec): min=255, max=1868, avg=959.20, stdev=231.70 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 617], 10.00th=[ 684], 20.00th=[ 760], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1385], | 99.00th=[ 1603], 99.50th=[ 1821], 99.90th=[ 1854], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 95, per=24.59%, avg=45.25, stdev=18.57, samples=224 iops : min= 1, max= 23, avg=10.86, stdev= 4.69, samples=224 lat (msec) : 50=0.12%, 100=0.31%, 250=0.86%, 500=36.41%, 750=20.43% lat (msec) : 1000=21.88%, 2000=20.00% cpu : usr=0.10%, sys=0.58%, ctx=4169, 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=145651: Sun Sep 6 00:51:48 2026 read: IOPS=10, BW=43.0KiB/s (45.0kB/s)(4976KiB/113112msec) slat (usec): min=2787, max=86183, avg=14840.57, stdev=8766.42 clat (msec): min=51, max=1099, avg=434.95, stdev=122.00 lat (msec): min=69, max=1125, avg=449.80, stdev=123.72 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 279], 10.00th=[ 300], 20.00th=[ 334], | 30.00th=[ 363], 40.00th=[ 393], 50.00th=[ 422], 60.00th=[ 451], | 70.00th=[ 481], 80.00th=[ 527], 90.00th=[ 592], 95.00th=[ 651], | 99.00th=[ 776], 99.50th=[ 894], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 119, per=24.82%, avg=43.93, stdev=19.36, samples=222 iops : min= 1, max= 29, avg=10.53, stdev= 4.85, samples=222 write: IOPS=11, BW=46.5KiB/s (47.7kB/s)(5264KiB/113112msec); 0 zone resets slat (usec): min=22, max=19963, avg=235.89, stdev=939.40 clat (msec): min=206, max=1952, avg=948.22, stdev=235.78 lat (msec): min=207, max=1952, avg=948.46, stdev=235.79 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 600], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 936], 60.00th=[ 995], | 70.00th=[ 1062], 80.00th=[ 1133], 90.00th=[ 1234], 95.00th=[ 1351], | 99.00th=[ 1569], 99.50th=[ 1636], 99.90th=[ 1770], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 111, per=24.91%, avg=45.84, stdev=19.79, samples=225 iops : min= 1, max= 27, avg=11.00, stdev= 4.99, samples=225 lat (msec) : 100=0.27%, 250=0.98%, 500=36.21%, 750=20.74%, 1000=21.48% lat (msec) : 2000=20.31% cpu : usr=0.08%, sys=0.55%, ctx=4225, 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=145652: Sun Sep 6 00:51:48 2026 read: IOPS=11, BW=44.1KiB/s (45.1kB/s)(4984KiB/113055msec) slat (usec): min=2673, max=74070, avg=14663.87, stdev=8542.89 clat (msec): min=17, max=991, avg=436.70, stdev=119.01 lat (msec): min=25, max=1021, avg=451.37, stdev=120.92 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 271], 10.00th=[ 296], 20.00th=[ 338], | 30.00th=[ 372], 40.00th=[ 397], 50.00th=[ 426], 60.00th=[ 460], | 70.00th=[ 493], 80.00th=[ 535], 90.00th=[ 592], 95.00th=[ 642], | 99.00th=[ 735], 99.50th=[ 768], 99.90th=[ 852], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 103, per=24.80%, avg=43.90, stdev=19.21, samples=223 iops : min= 1, max= 25, avg=10.52, stdev= 4.81, samples=223 write: IOPS=11, BW=46.5KiB/s (47.6kB/s)(5256KiB/113055msec); 0 zone resets slat (usec): min=23, max=13151, avg=228.44, stdev=711.85 clat (msec): min=251, max=1822, avg=945.83, stdev=231.03 lat (msec): min=251, max=1828, avg=946.06, stdev=231.06 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 600], 10.00th=[ 667], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 927], 60.00th=[ 986], | 70.00th=[ 1053], 80.00th=[ 1133], 90.00th=[ 1234], 95.00th=[ 1368], | 99.00th=[ 1569], 99.50th=[ 1603], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 112, per=24.86%, avg=45.74, stdev=20.88, samples=224 iops : min= 1, max= 28, avg=10.99, stdev= 5.29, samples=224 lat (msec) : 20=0.12%, 50=0.12%, 100=0.12%, 250=1.37%, 500=33.98% lat (msec) : 750=23.20%, 1000=21.56%, 2000=19.53% cpu : usr=0.09%, sys=0.61%, ctx=4637, 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=145653: Sun Sep 6 00:51:48 2026 read: IOPS=11, BW=44.9KiB/s (45.0kB/s)(5060KiB/112663msec) slat (usec): min=47, max=63910, avg=14350.23, stdev=8468.64 clat (msec): min=5, max=1071, avg=430.56, stdev=130.56 lat (msec): min=14, max=1094, avg=444.91, stdev=132.71 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 264], 10.00th=[ 292], 20.00th=[ 330], | 30.00th=[ 363], 40.00th=[ 393], 50.00th=[ 418], 60.00th=[ 447], | 70.00th=[ 481], 80.00th=[ 535], 90.00th=[ 600], 95.00th=[ 651], | 99.00th=[ 760], 99.50th=[ 793], 99.90th=[ 1062], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 122, per=25.59%, avg=45.29, stdev=20.60, samples=219 iops : min= 1, max= 30, avg=10.87, stdev= 5.19, samples=219 write: IOPS=11, BW=45.0KiB/s (47.1kB/s)(5180KiB/112663msec); 0 zone resets slat (usec): min=29, max=15919, avg=201.98, stdev=715.57 clat (msec): min=148, max=1814, avg=956.16, stdev=247.07 lat (msec): min=148, max=1815, avg=956.36, stdev=247.09 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 575], 10.00th=[ 667], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 944], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1401], | 99.00th=[ 1586], 99.50th=[ 1703], 99.90th=[ 1804], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 96, per=24.93%, avg=45.88, stdev=18.98, samples=221 iops : min= 1, max= 24, avg=11.02, stdev= 4.79, samples=221 lat (msec) : 10=0.04%, 20=0.23%, 50=0.16%, 100=0.43%, 250=1.05% lat (msec) : 500=35.74%, 750=20.55%, 1000=21.05%, 2000=20.74% cpu : usr=0.10%, sys=0.54%, ctx=4281, 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=177KiB/s (182kB/s), 43.0KiB/s-44.9KiB/s (45.0kB/s-45.0kB/s), io=19.6MiB (20.5MB), run=112663-113112msec WRITE: bw=185KiB/s (189kB/s), 45.9KiB/s-46.5KiB/s (47.0kB/s-47.7kB/s), io=20.4MiB (21.4MB), run=112663-113112msec 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=145682: Sun Sep 6 00:51:59 2026 read: IOPS=1, BW=56.7MiB/s (59.4MB/s)(40.0MiB/706msec) slat (nsec): min=45181k, max=45181k, avg=45180593.00, stdev= 0.00 clat (nsec): min=626666k, max=626666k, avg=626665888.00, stdev= 0.00 lat (nsec): min=671851k, max=671851k, avg=671851366.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.28%, ctx=11, 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=56.7MiB/s (59.4MB/s), 56.7MiB/s-56.7MiB/s (59.4MB/s-59.4MB/s), io=40.0MiB (41.9MB), run=706-706msec 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