== sanity test 398c: run fio to test AIO ================= 01:37:02 (1773207422) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.809009 s, 51.8 MB/s osc.lustre-OST0000-osc-ffff941ec9e00800.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=182231: Wed Mar 11 01:37:52 2026 write: IOPS=76, BW=306KiB/s (314kB/s)(10.0MiB/33410msec); 0 zone resets slat (usec): min=37, max=14206, avg=315.46, stdev=1008.71 clat (msec): min=22, max=385, avg=206.63, stdev=49.05 lat (msec): min=23, max=385, avg=206.95, stdev=49.07 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 146], 10.00th=[ 159], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 279], 95.00th=[ 309], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 122, max= 491, per=24.96%, avg=305.73, stdev=76.30, samples=66 iops : min= 30, max= 122, avg=75.98, stdev=19.05, samples=66 lat (msec) : 50=0.08%, 250=84.22%, 500=15.70% cpu : usr=0.13%, sys=1.05%, ctx=1568, 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=182232: Wed Mar 11 01:37:52 2026 write: IOPS=77, BW=310KiB/s (317kB/s)(10.0MiB/33070msec); 0 zone resets slat (usec): min=44, max=37427, avg=387.63, stdev=1334.05 clat (msec): min=42, max=419, avg=205.91, stdev=48.88 lat (msec): min=43, max=420, avg=206.30, stdev=48.90 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 171], | 30.00th=[ 180], 40.00th=[ 188], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 271], 95.00th=[ 305], | 99.00th=[ 368], 99.50th=[ 409], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 422] bw ( KiB/s): min= 159, max= 423, per=25.17%, avg=308.32, stdev=54.83, samples=65 iops : min= 39, max= 105, avg=76.63, stdev=13.74, samples=65 lat (msec) : 50=0.12%, 100=0.12%, 250=83.63%, 500=16.13% cpu : usr=0.28%, sys=1.49%, ctx=3001, 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=182233: Wed Mar 11 01:37:52 2026 write: IOPS=76, BW=306KiB/s (314kB/s)(10.0MiB/33411msec); 0 zone resets slat (usec): min=37, max=18888, avg=315.66, stdev=989.06 clat (msec): min=32, max=417, avg=206.90, stdev=48.49 lat (msec): min=32, max=418, avg=207.22, stdev=48.54 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 186], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 275], 95.00th=[ 309], | 99.00th=[ 347], 99.50th=[ 355], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 123, max= 502, per=24.95%, avg=305.65, stdev=75.42, samples=66 iops : min= 30, max= 125, avg=75.94, stdev=18.95, samples=66 lat (msec) : 50=0.04%, 100=0.04%, 250=83.20%, 500=16.72% cpu : usr=0.18%, sys=1.12%, ctx=2160, 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=182234: Wed Mar 11 01:37:52 2026 write: IOPS=76, BW=307KiB/s (314kB/s)(10.0MiB/33387msec); 0 zone resets slat (usec): min=37, max=11628, avg=262.30, stdev=723.16 clat (msec): min=11, max=422, avg=206.96, stdev=48.78 lat (msec): min=12, max=422, avg=207.22, stdev=48.76 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 146], 10.00th=[ 159], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 197], 60.00th=[ 203], | 70.00th=[ 222], 80.00th=[ 243], 90.00th=[ 275], 95.00th=[ 305], | 99.00th=[ 376], 99.50th=[ 388], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 422] bw ( KiB/s): min= 121, max= 388, per=24.94%, avg=305.56, stdev=68.58, samples=66 iops : min= 30, max= 97, avg=75.92, stdev=17.17, samples=66 lat (msec) : 20=0.04%, 50=0.04%, 250=83.16%, 500=16.76% cpu : usr=0.13%, sys=0.94%, ctx=1472, 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=1226KiB/s (1255kB/s), 306KiB/s-310KiB/s (314kB/s-317kB/s), io=40.0MiB (41.9MB), run=33070-33411msec 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=182250: Wed Mar 11 01:38:51 2026 read: IOPS=27, BW=112KiB/s (115kB/s)(5048KiB/45080msec) slat (usec): min=3940, max=83772, avg=19896.83, stdev=10738.67 clat (msec): min=17, max=564, avg=267.28, stdev=62.99 lat (msec): min=36, max=592, avg=287.18, stdev=65.19 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 182], 10.00th=[ 197], 20.00th=[ 220], | 30.00th=[ 232], 40.00th=[ 247], 50.00th=[ 259], 60.00th=[ 275], | 70.00th=[ 292], 80.00th=[ 313], 90.00th=[ 347], 95.00th=[ 380], | 99.00th=[ 472], 99.50th=[ 498], 99.90th=[ 531], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 47, max= 198, per=25.01%, avg=111.06, stdev=29.26, samples=89 iops : min= 11, max= 49, avg=27.16, stdev= 7.39, samples=89 write: IOPS=28, BW=115KiB/s (118kB/s)(5192KiB/45080msec); 0 zone resets slat (usec): min=56, max=28104, avg=453.96, stdev=1474.12 clat (msec): min=33, max=525, avg=273.16, stdev=60.11 lat (msec): min=34, max=525, avg=273.61, stdev=60.17 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 192], 10.00th=[ 207], 20.00th=[ 224], | 30.00th=[ 241], 40.00th=[ 253], 50.00th=[ 266], 60.00th=[ 279], | 70.00th=[ 296], 80.00th=[ 317], 90.00th=[ 351], 95.00th=[ 388], | 99.00th=[ 464], 99.50th=[ 493], 99.90th=[ 506], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 47, max= 206, per=24.74%, avg=114.55, stdev=31.70, samples=89 iops : min= 11, max= 51, avg=28.04, stdev= 7.98, samples=89 lat (msec) : 20=0.04%, 50=0.04%, 100=0.04%, 250=40.31%, 500=59.18% lat (msec) : 750=0.39% cpu : usr=0.21%, sys=1.74%, ctx=4009, 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=182251: Wed Mar 11 01:38:51 2026 read: IOPS=27, BW=111KiB/s (113kB/s)(4976KiB/44941msec) slat (usec): min=71, max=88339, avg=20255.80, stdev=10827.89 clat (msec): min=25, max=487, avg=268.84, stdev=60.86 lat (msec): min=39, max=499, avg=289.10, stdev=62.82 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 184], 10.00th=[ 201], 20.00th=[ 220], | 30.00th=[ 236], 40.00th=[ 249], 50.00th=[ 264], 60.00th=[ 275], | 70.00th=[ 292], 80.00th=[ 317], 90.00th=[ 351], 95.00th=[ 380], | 99.00th=[ 439], 99.50th=[ 456], 99.90th=[ 477], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 55, max= 182, per=24.80%, avg=110.10, stdev=30.12, samples=88 iops : min= 13, max= 45, avg=26.91, stdev= 7.60, samples=88 write: IOPS=29, BW=117KiB/s (120kB/s)(5264KiB/44941msec); 0 zone resets slat (usec): min=52, max=11622, avg=398.07, stdev=982.36 clat (msec): min=89, max=518, avg=271.93, stdev=59.06 lat (msec): min=89, max=518, avg=272.33, stdev=59.09 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 194], 10.00th=[ 209], 20.00th=[ 226], | 30.00th=[ 239], 40.00th=[ 251], 50.00th=[ 264], 60.00th=[ 275], | 70.00th=[ 292], 80.00th=[ 313], 90.00th=[ 355], 95.00th=[ 384], | 99.00th=[ 447], 99.50th=[ 468], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 63, max= 200, per=25.21%, avg=116.73, stdev=30.42, samples=88 iops : min= 15, max= 50, avg=28.58, stdev= 7.67, samples=88 lat (msec) : 50=0.12%, 100=0.08%, 250=39.65%, 500=60.04%, 750=0.12% cpu : usr=0.23%, sys=1.82%, ctx=4187, 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=182252: Wed Mar 11 01:38:51 2026 read: IOPS=27, BW=111KiB/s (113kB/s)(4984KiB/45097msec) slat (usec): min=3736, max=72360, avg=20136.15, stdev=10743.57 clat (msec): min=14, max=528, avg=266.22, stdev=61.75 lat (msec): min=28, max=544, avg=286.36, stdev=63.78 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 178], 10.00th=[ 194], 20.00th=[ 218], | 30.00th=[ 232], 40.00th=[ 245], 50.00th=[ 257], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 317], 90.00th=[ 347], 95.00th=[ 380], | 99.00th=[ 426], 99.50th=[ 456], 99.90th=[ 502], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 39, max= 190, per=24.84%, avg=110.28, stdev=32.91, samples=89 iops : min= 9, max= 47, avg=26.97, stdev= 8.24, samples=89 write: IOPS=29, BW=117KiB/s (119kB/s)(5256KiB/45097msec); 0 zone resets slat (usec): min=52, max=16809, avg=402.26, stdev=1112.79 clat (msec): min=107, max=511, avg=273.74, stdev=59.57 lat (msec): min=108, max=512, avg=274.14, stdev=59.57 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 184], 10.00th=[ 205], 20.00th=[ 226], | 30.00th=[ 241], 40.00th=[ 255], 50.00th=[ 268], 60.00th=[ 284], | 70.00th=[ 296], 80.00th=[ 321], 90.00th=[ 355], 95.00th=[ 380], | 99.00th=[ 439], 99.50th=[ 468], 99.90th=[ 502], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 47, max= 176, per=24.94%, avg=115.45, stdev=28.93, samples=89 iops : min= 11, max= 44, avg=28.27, stdev= 7.32, samples=89 lat (msec) : 20=0.04%, 100=0.08%, 250=40.55%, 500=59.18%, 750=0.16% cpu : usr=0.18%, sys=1.65%, ctx=4088, 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=182253: Wed Mar 11 01:38:51 2026 read: IOPS=28, BW=112KiB/s (115kB/s)(5060KiB/45098msec) slat (usec): min=3803, max=93011, avg=20079.69, stdev=10862.06 clat (msec): min=29, max=572, avg=268.63, stdev=60.91 lat (msec): min=40, max=589, avg=288.72, stdev=62.42 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 184], 10.00th=[ 201], 20.00th=[ 222], | 30.00th=[ 234], 40.00th=[ 247], 50.00th=[ 262], 60.00th=[ 275], | 70.00th=[ 292], 80.00th=[ 313], 90.00th=[ 351], 95.00th=[ 380], | 99.00th=[ 443], 99.50th=[ 464], 99.90th=[ 558], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 39, max= 191, per=25.10%, avg=111.46, stdev=29.51, samples=89 iops : min= 9, max= 47, avg=27.27, stdev= 7.38, samples=89 write: IOPS=28, BW=115KiB/s (118kB/s)(5180KiB/45098msec); 0 zone resets slat (usec): min=50, max=17263, avg=416.44, stdev=1252.59 clat (msec): min=135, max=564, avg=271.59, stdev=55.76 lat (msec): min=135, max=564, avg=272.01, stdev=55.77 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 190], 10.00th=[ 205], 20.00th=[ 226], | 30.00th=[ 241], 40.00th=[ 255], 50.00th=[ 266], 60.00th=[ 279], | 70.00th=[ 296], 80.00th=[ 317], 90.00th=[ 347], 95.00th=[ 376], | 99.00th=[ 422], 99.50th=[ 439], 99.90th=[ 468], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 47, max= 168, per=24.67%, avg=114.20, stdev=27.13, samples=89 iops : min= 11, max= 42, avg=27.94, stdev= 6.87, samples=89 lat (msec) : 50=0.04%, 250=39.61%, 500=60.23%, 750=0.12% cpu : usr=0.23%, sys=1.75%, ctx=4188, 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=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=445KiB/s (456kB/s), 111KiB/s-112KiB/s (113kB/s-115kB/s), io=19.6MiB (20.5MB), run=44941-45098msec WRITE: bw=463KiB/s (474kB/s), 115KiB/s-117KiB/s (118kB/s-120kB/s), io=20.4MiB (21.4MB), run=44941-45098msec 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=182266: Wed Mar 11 01:39:06 2026 read: IOPS=1, BW=60.5MiB/s (63.5MB/s)(40.0MiB/661msec) slat (nsec): min=30827k, max=30827k, avg=30827270.00, stdev= 0.00 clat (nsec): min=582471k, max=582471k, avg=582470810.00, stdev= 0.00 lat (nsec): min=613303k, max=613303k, avg=613302940.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.12%, ctx=5, 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=60.5MiB/s (63.5MB/s), 60.5MiB/s-60.5MiB/s (63.5MB/s-63.5MB/s), io=40.0MiB (41.9MB), run=661-661msec 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