== sanity test 398c: run fio to test AIO ================= 03:20:25 (1788852025) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.560567 s, 74.8 MB/s osc.lustre-OST0000-osc-ffffa0baba6de800.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=181006: Tue Sep 8 03:21:07 2026 write: IOPS=85, BW=344KiB/s (352kB/s)(10.0MiB/29801msec); 0 zone resets slat (usec): min=22, max=16551, avg=192.75, stdev=779.12 clat (msec): min=75, max=353, avg=184.41, stdev=56.06 lat (msec): min=75, max=353, avg=184.61, stdev=56.07 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 95], 10.00th=[ 109], 20.00th=[ 133], | 30.00th=[ 150], 40.00th=[ 167], 50.00th=[ 182], 60.00th=[ 197], | 70.00th=[ 213], 80.00th=[ 239], 90.00th=[ 262], 95.00th=[ 275], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 88, max= 664, per=25.06%, avg=344.38, stdev=108.42, samples=58 iops : min= 22, max= 166, avg=85.72, stdev=27.13, samples=58 lat (msec) : 100=6.41%, 250=78.63%, 500=14.96% cpu : usr=0.17%, sys=0.84%, ctx=1235, 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=181007: Tue Sep 8 03:21:07 2026 write: IOPS=86, BW=344KiB/s (352kB/s)(10.0MiB/29765msec); 0 zone resets slat (usec): min=22, max=18299, avg=244.17, stdev=854.62 clat (msec): min=19, max=388, avg=184.25, stdev=57.31 lat (msec): min=19, max=389, avg=184.50, stdev=57.35 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 95], 10.00th=[ 106], 20.00th=[ 132], | 30.00th=[ 153], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 321], 99.50th=[ 326], 99.90th=[ 355], 99.95th=[ 363], | 99.99th=[ 388] bw ( KiB/s): min= 92, max= 680, per=25.16%, avg=345.66, stdev=106.61, samples=58 iops : min= 23, max= 170, avg=86.05, stdev=26.72, samples=58 lat (msec) : 20=0.04%, 50=0.08%, 100=7.15%, 250=80.23%, 500=12.50% cpu : usr=0.21%, sys=1.09%, ctx=2352, 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=181008: Tue Sep 8 03:21:07 2026 write: IOPS=86, BW=347KiB/s (356kB/s)(10.0MiB/29487msec); 0 zone resets slat (usec): min=26, max=15018, avg=310.46, stdev=970.25 clat (msec): min=22, max=403, avg=183.72, stdev=59.45 lat (msec): min=23, max=403, avg=184.04, stdev=59.44 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 94], 10.00th=[ 106], 20.00th=[ 131], | 30.00th=[ 150], 40.00th=[ 165], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 211], 80.00th=[ 236], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 405] bw ( KiB/s): min= 159, max= 672, per=25.18%, avg=345.98, stdev=101.54, samples=58 iops : min= 39, max= 168, avg=86.10, stdev=25.47, samples=58 lat (msec) : 50=0.31%, 100=6.72%, 250=78.87%, 500=14.10% cpu : usr=0.19%, sys=1.23%, ctx=3002, 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=181009: Tue Sep 8 03:21:07 2026 write: IOPS=85, BW=344KiB/s (352kB/s)(10.0MiB/29790msec); 0 zone resets slat (usec): min=21, max=30671, avg=247.41, stdev=1123.38 clat (msec): min=57, max=362, avg=184.48, stdev=56.20 lat (msec): min=57, max=362, avg=184.73, stdev=56.24 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 97], 10.00th=[ 107], 20.00th=[ 133], | 30.00th=[ 153], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 321], 99.50th=[ 326], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 88, max= 640, per=25.07%, avg=344.41, stdev=104.64, samples=58 iops : min= 22, max= 160, avg=85.74, stdev=26.22, samples=58 lat (msec) : 100=6.68%, 250=80.90%, 500=12.42% cpu : usr=0.17%, sys=1.01%, ctx=1861, 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 Run status group 0 (all jobs): WRITE: bw=1374KiB/s (1407kB/s), 344KiB/s-347KiB/s (352kB/s-356kB/s), io=40.0MiB (41.9MB), run=29487-29801msec 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=181023: Tue Sep 8 03:22:09 2026 read: IOPS=25, BW=101KiB/s (104kB/s)(5048KiB/49919msec) slat (usec): min=39, max=644607, avg=22361.41, stdev=30116.22 clat (msec): min=32, max=1533, avg=293.09, stdev=148.84 lat (msec): min=60, max=1549, avg=315.47, stdev=157.77 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 129], 10.00th=[ 157], 20.00th=[ 190], | 30.00th=[ 222], 40.00th=[ 243], 50.00th=[ 268], 60.00th=[ 300], | 70.00th=[ 326], 80.00th=[ 376], 90.00th=[ 443], 95.00th=[ 502], | 99.00th=[ 1116], 99.50th=[ 1217], 99.90th=[ 1502], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 23, max= 238, per=25.76%, avg=102.02, stdev=43.31, samples=96 iops : min= 5, max= 59, avg=24.96, stdev=10.88, samples=96 write: IOPS=26, BW=104KiB/s (107kB/s)(5192KiB/49919msec); 0 zone resets slat (usec): min=27, max=48926, avg=363.06, stdev=1945.76 clat (msec): min=85, max=1504, avg=307.15, stdev=153.94 lat (msec): min=85, max=1507, avg=307.52, stdev=154.00 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 136], 10.00th=[ 167], 20.00th=[ 201], | 30.00th=[ 230], 40.00th=[ 253], 50.00th=[ 275], 60.00th=[ 309], | 70.00th=[ 342], 80.00th=[ 397], 90.00th=[ 477], 95.00th=[ 542], | 99.00th=[ 1116], 99.50th=[ 1267], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 7, max= 205, per=25.31%, avg=104.26, stdev=42.41, samples=97 iops : min= 1, max= 51, avg=25.52, stdev=10.68, samples=97 lat (msec) : 50=0.04%, 100=0.62%, 250=40.70%, 500=51.91%, 750=5.51% lat (msec) : 1000=0.04%, 2000=1.17% cpu : usr=0.17%, sys=1.28%, ctx=3928, 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=181024: Tue Sep 8 03:22:09 2026 read: IOPS=24, BW=98.4KiB/s (101kB/s)(4976KiB/50588msec) slat (usec): min=122, max=664885, avg=22734.75, stdev=26332.02 clat (msec): min=38, max=1617, avg=297.23, stdev=175.06 lat (msec): min=43, max=1649, avg=319.97, stdev=181.52 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 124], 10.00th=[ 144], 20.00th=[ 180], | 30.00th=[ 209], 40.00th=[ 239], 50.00th=[ 268], 60.00th=[ 300], | 70.00th=[ 326], 80.00th=[ 376], 90.00th=[ 447], 95.00th=[ 567], | 99.00th=[ 1183], 99.50th=[ 1351], 99.90th=[ 1603], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 7, max= 245, per=24.98%, avg=98.92, stdev=46.35, samples=98 iops : min= 1, max= 61, avg=24.18, stdev=11.64, samples=98 write: IOPS=26, BW=104KiB/s (107kB/s)(5264KiB/50588msec); 0 zone resets slat (usec): min=25, max=22340, avg=357.13, stdev=1448.47 clat (msec): min=32, max=1507, avg=309.02, stdev=157.02 lat (msec): min=33, max=1507, avg=309.38, stdev=157.01 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 128], 10.00th=[ 157], 20.00th=[ 203], | 30.00th=[ 230], 40.00th=[ 255], 50.00th=[ 279], 60.00th=[ 305], | 70.00th=[ 347], 80.00th=[ 397], 90.00th=[ 477], 95.00th=[ 550], | 99.00th=[ 902], 99.50th=[ 1267], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 31, max= 223, per=25.54%, avg=105.21, stdev=44.77, samples=98 iops : min= 7, max= 55, avg=25.77, stdev=11.25, samples=98 lat (msec) : 50=0.43%, 100=0.78%, 250=40.23%, 500=51.17%, 750=5.59% lat (msec) : 1000=0.59%, 2000=1.21% cpu : usr=0.25%, sys=1.43%, ctx=3931, 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=181025: Tue Sep 8 03:22:09 2026 read: IOPS=24, BW=99.3KiB/s (102kB/s)(4984KiB/50185msec) slat (msec): min=2, max=635, avg=23.11, stdev=30.02 clat (msec): min=47, max=1508, avg=298.58, stdev=161.21 lat (msec): min=66, max=1527, avg=321.70, stdev=170.24 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 131], 10.00th=[ 155], 20.00th=[ 186], | 30.00th=[ 218], 40.00th=[ 245], 50.00th=[ 275], 60.00th=[ 305], | 70.00th=[ 334], 80.00th=[ 372], 90.00th=[ 447], 95.00th=[ 518], | 99.00th=[ 1167], 99.50th=[ 1368], 99.90th=[ 1485], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 7, max= 231, per=25.50%, avg=100.97, stdev=42.28, samples=96 iops : min= 1, max= 57, avg=24.74, stdev=10.64, samples=96 write: IOPS=26, BW=105KiB/s (107kB/s)(5256KiB/50185msec); 0 zone resets slat (usec): min=25, max=17647, avg=306.83, stdev=1078.62 clat (msec): min=14, max=1372, avg=301.94, stdev=142.77 lat (msec): min=14, max=1373, avg=302.26, stdev=142.75 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 140], 10.00th=[ 159], 20.00th=[ 190], | 30.00th=[ 222], 40.00th=[ 249], 50.00th=[ 279], 60.00th=[ 309], | 70.00th=[ 347], 80.00th=[ 388], 90.00th=[ 460], 95.00th=[ 518], | 99.00th=[ 684], 99.50th=[ 1150], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 15, max= 245, per=25.50%, avg=105.04, stdev=49.34, samples=97 iops : min= 3, max= 61, avg=25.74, stdev=12.42, samples=97 lat (msec) : 20=0.04%, 50=0.12%, 100=0.62%, 250=40.16%, 500=52.97% lat (msec) : 750=4.88%, 1000=0.04%, 2000=1.17% cpu : usr=0.21%, sys=1.26%, ctx=3912, 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=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=181027: Tue Sep 8 03:22:09 2026 read: IOPS=25, BW=100KiB/s (103kB/s)(5060KiB/50462msec) slat (msec): min=2, max=670, avg=22.58, stdev=27.77 clat (msec): min=50, max=1467, avg=293.03, stdev=148.45 lat (msec): min=66, max=1527, avg=315.62, stdev=156.56 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 131], 10.00th=[ 153], 20.00th=[ 190], | 30.00th=[ 220], 40.00th=[ 245], 50.00th=[ 271], 60.00th=[ 296], | 70.00th=[ 326], 80.00th=[ 372], 90.00th=[ 439], 95.00th=[ 506], | 99.00th=[ 1028], 99.50th=[ 1267], 99.90th=[ 1435], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7, max= 239, per=25.40%, avg=100.59, stdev=47.11, samples=98 iops : min= 1, max= 59, avg=24.64, stdev=11.86, samples=98 write: IOPS=25, BW=103KiB/s (105kB/s)(5180KiB/50462msec); 0 zone resets slat (usec): min=33, max=33074, avg=410.04, stdev=1824.15 clat (msec): min=73, max=1439, avg=310.44, stdev=157.66 lat (msec): min=73, max=1440, avg=310.85, stdev=157.79 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 136], 10.00th=[ 163], 20.00th=[ 203], | 30.00th=[ 230], 40.00th=[ 257], 50.00th=[ 284], 60.00th=[ 313], | 70.00th=[ 347], 80.00th=[ 397], 90.00th=[ 472], 95.00th=[ 542], | 99.00th=[ 1133], 99.50th=[ 1318], 99.90th=[ 1418], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7, max= 228, per=25.23%, avg=103.95, stdev=42.51, samples=97 iops : min= 1, max= 57, avg=25.46, stdev=10.69, samples=97 lat (msec) : 100=0.74%, 250=38.98%, 500=53.91%, 750=5.16%, 2000=1.21% cpu : usr=0.19%, sys=1.40%, ctx=4139, 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=397KiB/s (406kB/s), 98.4KiB/s-101KiB/s (101kB/s-104kB/s), io=19.6MiB (20.5MB), run=49919-50588msec WRITE: bw=413KiB/s (423kB/s), 103KiB/s-105KiB/s (105kB/s-107kB/s), io=20.4MiB (21.4MB), run=49919-50588msec 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=181038: Tue Sep 8 03:22:20 2026 read: IOPS=1, BW=56.9MiB/s (59.7MB/s)(40.0MiB/703msec) slat (nsec): min=56233k, max=56233k, avg=56232977.00, stdev= 0.00 clat (nsec): min=614863k, max=614863k, avg=614862678.00, stdev= 0.00 lat (nsec): min=671100k, max=671100k, avg=671100085.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.56%, 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=56.9MiB/s (59.7MB/s), 56.9MiB/s-56.9MiB/s (59.7MB/s-59.7MB/s), io=40.0MiB (41.9MB), run=703-703msec 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