== sanity test 398c: run fio to test AIO ================= 00:55:56 (1781240156) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.553768 s, 75.7 MB/s osc.lustre-OST0000-osc-ffff996526e11800.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=146424: Fri Jun 12 00:59:11 2026 write: IOPS=13, BW=55.9KiB/s (57.2kB/s)(10.0MiB/183208msec); 0 zone resets slat (usec): min=50, max=22985, avg=364.46, stdev=1086.34 clat (msec): min=170, max=2069, avg=1143.52, stdev=254.24 lat (msec): min=170, max=2069, avg=1143.89, stdev=254.23 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 785], 10.00th=[ 869], 20.00th=[ 953], | 30.00th=[ 1011], 40.00th=[ 1070], 50.00th=[ 1133], 60.00th=[ 1183], | 70.00th=[ 1250], 80.00th=[ 1334], 90.00th=[ 1485], 95.00th=[ 1569], | 99.00th=[ 1821], 99.50th=[ 1938], 99.90th=[ 2039], 99.95th=[ 2056], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 135, per=25.38%, avg=56.60, stdev=30.27, samples=355 iops : min= 1, max= 33, avg=13.64, stdev= 7.56, samples=355 lat (msec) : 250=0.04%, 500=1.17%, 750=2.85%, 1000=24.22%, 2000=71.45% lat (msec) : >=2000=0.27% cpu : usr=0.05%, sys=0.27%, ctx=1883, 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=146425: Fri Jun 12 00:59:11 2026 write: IOPS=13, BW=55.0KiB/s (57.3kB/s)(10.0MiB/182888msec); 0 zone resets slat (usec): min=38, max=16674, avg=366.15, stdev=1078.68 clat (msec): min=187, max=2051, avg=1142.07, stdev=258.93 lat (msec): min=187, max=2052, avg=1142.44, stdev=258.93 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 760], 10.00th=[ 860], 20.00th=[ 944], | 30.00th=[ 1020], 40.00th=[ 1083], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1250], 80.00th=[ 1334], 90.00th=[ 1469], 95.00th=[ 1569], | 99.00th=[ 1804], 99.50th=[ 1888], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 226, per=25.81%, avg=57.56, stdev=29.45, samples=349 iops : min= 1, max= 56, avg=13.89, stdev= 7.40, samples=349 lat (msec) : 250=0.62%, 500=0.78%, 750=3.20%, 1000=22.30%, 2000=72.97% lat (msec) : >=2000=0.12% cpu : usr=0.05%, sys=0.28%, ctx=1878, 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=146426: Fri Jun 12 00:59:11 2026 write: IOPS=13, BW=55.0KiB/s (57.3kB/s)(10.0MiB/182881msec); 0 zone resets slat (usec): min=41, max=22785, avg=383.46, stdev=1097.71 clat (msec): min=152, max=2022, avg=1141.45, stdev=257.64 lat (msec): min=152, max=2022, avg=1141.84, stdev=257.66 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 776], 10.00th=[ 852], 20.00th=[ 944], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1250], 80.00th=[ 1334], 90.00th=[ 1469], 95.00th=[ 1603], | 99.00th=[ 1804], 99.50th=[ 1888], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 128, per=24.95%, avg=55.64, stdev=25.11, samples=361 iops : min= 1, max= 32, avg=13.40, stdev= 6.29, samples=361 lat (msec) : 250=0.16%, 500=1.13%, 750=2.93%, 1000=24.06%, 2000=71.68% lat (msec) : >=2000=0.04% cpu : usr=0.05%, sys=0.31%, ctx=2192, 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=146427: Fri Jun 12 00:59:11 2026 write: IOPS=13, BW=55.9KiB/s (57.3kB/s)(10.0MiB/183146msec); 0 zone resets slat (usec): min=51, max=17159, avg=418.56, stdev=1259.82 clat (msec): min=239, max=2070, avg=1143.35, stdev=256.01 lat (msec): min=239, max=2070, avg=1143.77, stdev=255.97 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 768], 10.00th=[ 860], 20.00th=[ 944], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1267], 80.00th=[ 1334], 90.00th=[ 1469], 95.00th=[ 1569], | 99.00th=[ 1804], 99.50th=[ 1888], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 136, per=24.88%, avg=55.49, stdev=27.24, samples=362 iops : min= 1, max= 34, avg=13.37, stdev= 6.85, samples=362 lat (msec) : 250=0.20%, 500=1.09%, 750=3.01%, 1000=24.34%, 2000=71.33% lat (msec) : >=2000=0.04% cpu : usr=0.06%, sys=0.28%, ctx=2128, 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=224KiB/s (229kB/s), 55.9KiB/s-55.0KiB/s (57.2kB/s-57.3kB/s), io=40.0MiB (41.9MB), run=182881-183208msec 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=146462: Fri Jun 12 01:01:17 2026 read: IOPS=10, BW=43.5KiB/s (44.5kB/s)(5048KiB/116050msec) slat (usec): min=2928, max=67907, avg=15176.56, stdev=7795.70 clat (msec): min=15, max=834, avg=440.47, stdev=103.93 lat (msec): min=31, max=850, avg=455.65, stdev=104.98 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 292], 10.00th=[ 326], 20.00th=[ 363], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 485], 80.00th=[ 518], 90.00th=[ 567], 95.00th=[ 625], | 99.00th=[ 709], 99.50th=[ 768], 99.90th=[ 818], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 119, per=25.11%, avg=42.93, stdev=20.87, samples=230 iops : min= 1, max= 29, avg=10.18, stdev= 5.23, samples=230 write: IOPS=11, BW=44.7KiB/s (45.8kB/s)(5192KiB/116050msec); 0 zone resets slat (usec): min=57, max=14984, avg=486.65, stdev=1218.59 clat (msec): min=231, max=2050, avg=984.02, stdev=264.73 lat (msec): min=231, max=2051, avg=984.51, stdev=264.69 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 609], 10.00th=[ 676], 20.00th=[ 768], | 30.00th=[ 844], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1284], 95.00th=[ 1469], | 99.00th=[ 1955], 99.50th=[ 2005], 99.90th=[ 2039], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 112, per=24.95%, avg=44.41, stdev=18.82, samples=228 iops : min= 1, max= 28, avg=10.55, stdev= 4.76, samples=228 lat (msec) : 20=0.04%, 50=0.04%, 100=0.31%, 250=0.51%, 500=36.76% lat (msec) : 750=20.43%, 1000=19.65%, 2000=22.03%, >=2000=0.23% cpu : usr=0.09%, sys=0.80%, ctx=4940, 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=146463: Fri Jun 12 01:01:17 2026 read: IOPS=10, BW=42.6KiB/s (43.7kB/s)(4976KiB/116701msec) slat (usec): min=3287, max=69745, avg=15061.92, stdev=7702.44 clat (msec): min=18, max=1232, avg=440.50, stdev=112.67 lat (msec): min=31, max=1244, avg=455.58, stdev=113.65 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 292], 10.00th=[ 321], 20.00th=[ 355], | 30.00th=[ 380], 40.00th=[ 405], 50.00th=[ 426], 60.00th=[ 456], | 70.00th=[ 489], 80.00th=[ 527], 90.00th=[ 584], 95.00th=[ 625], | 99.00th=[ 735], 99.50th=[ 852], 99.90th=[ 1062], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 103, per=24.86%, avg=42.51, stdev=20.52, samples=228 iops : min= 1, max= 25, avg=10.07, stdev= 5.16, samples=228 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(5264KiB/116701msec); 0 zone resets slat (usec): min=59, max=10684, avg=487.21, stdev=971.02 clat (msec): min=273, max=2096, avg=985.12, stdev=263.74 lat (msec): min=273, max=2097, avg=985.61, stdev=263.74 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 609], 10.00th=[ 693], 20.00th=[ 768], | 30.00th=[ 844], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1469], | 99.00th=[ 1938], 99.50th=[ 1989], 99.90th=[ 2056], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 103, per=25.06%, avg=44.60, stdev=18.03, samples=231 iops : min= 1, max= 25, avg=10.60, stdev= 4.53, samples=231 lat (msec) : 20=0.04%, 50=0.04%, 100=0.31%, 250=0.66%, 500=35.23% lat (msec) : 750=20.70%, 1000=20.90%, 2000=21.95%, >=2000=0.16% cpu : usr=0.11%, sys=0.79%, ctx=5107, 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=146464: Fri Jun 12 01:01:17 2026 read: IOPS=10, BW=42.7KiB/s (43.7kB/s)(4984KiB/116849msec) slat (usec): min=2835, max=77938, avg=15268.70, stdev=8094.28 clat (msec): min=31, max=759, avg=450.07, stdev=101.16 lat (msec): min=43, max=792, avg=465.35, stdev=102.52 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 305], 10.00th=[ 334], 20.00th=[ 368], | 30.00th=[ 393], 40.00th=[ 418], 50.00th=[ 447], 60.00th=[ 468], | 70.00th=[ 498], 80.00th=[ 527], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 701], 99.50th=[ 718], 99.90th=[ 751], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 119, per=24.71%, avg=42.25, stdev=19.86, samples=231 iops : min= 1, max= 29, avg=10.01, stdev= 5.01, samples=231 write: IOPS=11, BW=44.0KiB/s (46.1kB/s)(5256KiB/116849msec); 0 zone resets slat (usec): min=56, max=9359, avg=458.56, stdev=915.94 clat (msec): min=356, max=2077, avg=977.87, stdev=264.97 lat (msec): min=356, max=2077, avg=978.33, stdev=264.94 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 600], 10.00th=[ 667], 20.00th=[ 760], | 30.00th=[ 844], 40.00th=[ 902], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1070], 80.00th=[ 1150], 90.00th=[ 1284], 95.00th=[ 1435], | 99.00th=[ 1921], 99.50th=[ 2039], 99.90th=[ 2056], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 88, per=24.89%, avg=44.30, stdev=18.59, samples=231 iops : min= 1, max= 22, avg=10.52, stdev= 4.67, samples=231 lat (msec) : 50=0.12%, 100=0.16%, 250=0.27%, 500=35.08%, 750=22.73% lat (msec) : 1000=19.53%, 2000=21.72%, >=2000=0.39% cpu : usr=0.12%, sys=0.77%, ctx=4885, 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=146465: Fri Jun 12 01:01:17 2026 read: IOPS=11, BW=44.0KiB/s (45.1kB/s)(5060KiB/114996msec) slat (usec): min=112, max=67719, avg=14707.38, stdev=7751.26 clat (msec): min=8, max=1283, avg=444.47, stdev=120.00 lat (msec): min=17, max=1335, avg=459.18, stdev=120.77 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 284], 10.00th=[ 317], 20.00th=[ 359], | 30.00th=[ 384], 40.00th=[ 409], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 493], 80.00th=[ 531], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 768], 99.50th=[ 1028], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 110, per=25.77%, avg=44.06, stdev=19.40, samples=224 iops : min= 1, max= 27, avg=10.46, stdev= 4.88, samples=224 write: IOPS=11, BW=45.0KiB/s (46.1kB/s)(5180KiB/114996msec); 0 zone resets slat (usec): min=62, max=20175, avg=538.43, stdev=1404.29 clat (msec): min=128, max=2091, avg=970.49, stdev=274.54 lat (msec): min=130, max=2091, avg=971.04, stdev=274.46 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 575], 10.00th=[ 659], 20.00th=[ 760], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 944], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1452], | 99.00th=[ 1838], 99.50th=[ 2039], 99.90th=[ 2072], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 105, per=24.91%, avg=44.35, stdev=20.12, samples=228 iops : min= 1, max= 26, avg=10.53, stdev= 5.06, samples=228 lat (msec) : 10=0.04%, 50=0.23%, 100=0.27%, 250=1.17%, 500=35.31% lat (msec) : 750=21.33%, 1000=20.82%, 2000=20.47%, >=2000=0.35% cpu : usr=0.09%, sys=0.78%, ctx=4769, 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=172KiB/s (176kB/s), 42.6KiB/s-44.0KiB/s (43.7kB/s-45.1kB/s), io=19.6MiB (20.5MB), run=114996-116849msec WRITE: bw=179KiB/s (183kB/s), 44.7KiB/s-45.1KiB/s (45.8kB/s-46.2kB/s), io=20.4MiB (21.4MB), run=114996-116849msec 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=146497: Fri Jun 12 01:01:28 2026 read: IOPS=1, BW=59.1MiB/s (61.0MB/s)(40.0MiB/677msec) slat (nsec): min=57168k, max=57168k, avg=57167980.00, stdev= 0.00 clat (nsec): min=599583k, max=599583k, avg=599582889.00, stdev= 0.00 lat (nsec): min=656756k, max=656756k, avg=656755908.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.04%, ctx=44, 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=59.1MiB/s (61.0MB/s), 59.1MiB/s-59.1MiB/s (61.0MB/s-61.0MB/s), io=40.0MiB (41.9MB), run=677-677msec 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