== sanity test 398c: run fio to test AIO ================= 17:21:43 (1787606503) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.71516 s, 58.6 MB/s osc.lustre-OST0000-osc-ffff9ad939ae3800.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=179659: Mon Aug 24 17:22:28 2026 write: IOPS=79, BW=320KiB/s (327kB/s)(10.0MiB/32023msec); 0 zone resets slat (usec): min=27, max=28849, avg=237.03, stdev=1133.74 clat (msec): min=25, max=409, avg=198.63, stdev=47.06 lat (msec): min=25, max=409, avg=198.87, stdev=47.05 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 133], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 160, max= 431, per=24.89%, avg=317.84, stdev=61.05, samples=63 iops : min= 40, max= 107, avg=79.10, stdev=15.30, samples=63 lat (msec) : 50=0.08%, 100=0.12%, 250=85.70%, 500=14.10% cpu : usr=0.17%, sys=0.86%, ctx=2273, 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=179660: Mon Aug 24 17:22:28 2026 write: IOPS=80, BW=322KiB/s (329kB/s)(10.0MiB/31840msec); 0 zone resets slat (usec): min=28, max=24212, avg=253.49, stdev=960.30 clat (msec): min=20, max=386, avg=198.48, stdev=47.93 lat (msec): min=20, max=386, avg=198.74, stdev=47.93 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 330], 99.50th=[ 355], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 200, max= 459, per=25.14%, avg=321.02, stdev=60.56, samples=63 iops : min= 50, max= 114, avg=79.89, stdev=15.09, samples=63 lat (msec) : 50=0.16%, 100=0.86%, 250=84.49%, 500=14.49% cpu : usr=0.19%, sys=1.20%, ctx=2887, 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=179661: Mon Aug 24 17:22:28 2026 write: IOPS=80, BW=321KiB/s (328kB/s)(10.0MiB/31947msec); 0 zone resets slat (usec): min=27, max=17239, avg=187.34, stdev=858.28 clat (msec): min=84, max=383, avg=198.96, stdev=46.92 lat (msec): min=84, max=383, avg=199.16, stdev=46.93 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 134], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 136, max= 510, per=25.00%, avg=319.24, stdev=68.00, samples=63 iops : min= 34, max= 127, avg=79.46, stdev=17.01, samples=63 lat (msec) : 100=0.08%, 250=88.12%, 500=11.80% cpu : usr=0.14%, sys=0.70%, ctx=1525, 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=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=179662: Mon Aug 24 17:22:28 2026 write: IOPS=79, BW=319KiB/s (327kB/s)(10.0MiB/32062msec); 0 zone resets slat (usec): min=27, max=12813, avg=166.10, stdev=607.33 clat (msec): min=79, max=366, avg=199.16, stdev=46.62 lat (msec): min=79, max=366, avg=199.33, stdev=46.62 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 131], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 205], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 262], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 368] bw ( KiB/s): min= 136, max= 484, per=24.86%, avg=317.41, stdev=68.39, samples=63 iops : min= 34, max= 121, avg=78.98, stdev=17.06, samples=63 lat (msec) : 100=0.35%, 250=85.59%, 500=14.06% cpu : usr=0.13%, sys=0.66%, ctx=1577, 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=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=1278KiB/s (1308kB/s), 319KiB/s-322KiB/s (327kB/s-329kB/s), io=40.0MiB (41.9MB), run=31840-32062msec 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=179678: Mon Aug 24 17:23:19 2026 read: IOPS=32, BW=129KiB/s (133kB/s)(5048KiB/38994msec) slat (usec): min=3245, max=92227, avg=17424.47, stdev=10281.97 clat (msec): min=106, max=543, avg=229.52, stdev=62.45 lat (msec): min=119, max=549, avg=246.95, stdev=65.47 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 180], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 234], | 70.00th=[ 253], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 342], | 99.00th=[ 422], 99.50th=[ 443], 99.90th=[ 518], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 21, max= 230, per=25.05%, avg=128.77, stdev=35.18, samples=77 iops : min= 5, max= 57, avg=31.66, stdev= 8.80, samples=77 write: IOPS=33, BW=133KiB/s (136kB/s)(5192KiB/38994msec); 0 zone resets slat (usec): min=30, max=15542, avg=249.68, stdev=790.14 clat (msec): min=47, max=523, avg=235.91, stdev=62.67 lat (msec): min=47, max=523, avg=236.16, stdev=62.69 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 148], 10.00th=[ 161], 20.00th=[ 186], | 30.00th=[ 201], 40.00th=[ 215], 50.00th=[ 228], 60.00th=[ 243], | 70.00th=[ 259], 80.00th=[ 284], 90.00th=[ 317], 95.00th=[ 355], | 99.00th=[ 426], 99.50th=[ 451], 99.90th=[ 493], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 56, max= 255, per=25.17%, avg=134.66, stdev=37.46, samples=76 iops : min= 14, max= 63, avg=33.12, stdev= 9.42, samples=76 lat (msec) : 50=0.04%, 100=0.04%, 250=66.45%, 500=33.36%, 750=0.12% cpu : usr=0.25%, sys=1.78%, ctx=4239, 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=179679: Mon Aug 24 17:23:19 2026 read: IOPS=32, BW=128KiB/s (131kB/s)(4976KiB/38841msec) slat (usec): min=3288, max=94721, avg=17722.47, stdev=10872.90 clat (msec): min=36, max=469, avg=232.27, stdev=63.71 lat (msec): min=48, max=518, avg=250.00, stdev=67.06 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 142], 10.00th=[ 159], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 224], 60.00th=[ 241], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 321], 95.00th=[ 351], | 99.00th=[ 414], 99.50th=[ 426], 99.90th=[ 456], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 6, max= 183, per=24.70%, avg=126.96, stdev=32.54, samples=77 iops : min= 1, max= 45, avg=31.21, stdev= 8.12, samples=77 write: IOPS=33, BW=136KiB/s (139kB/s)(5264KiB/38841msec); 0 zone resets slat (usec): min=30, max=26509, avg=243.60, stdev=970.78 clat (msec): min=42, max=457, avg=232.10, stdev=60.51 lat (msec): min=42, max=457, avg=232.35, stdev=60.48 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 144], 10.00th=[ 161], 20.00th=[ 182], | 30.00th=[ 199], 40.00th=[ 213], 50.00th=[ 228], 60.00th=[ 239], | 70.00th=[ 255], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 351], | 99.00th=[ 401], 99.50th=[ 418], 99.90th=[ 430], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 34, max= 288, per=25.21%, avg=134.86, stdev=46.16, samples=77 iops : min= 8, max= 72, avg=33.19, stdev=11.59, samples=77 lat (msec) : 50=0.08%, 100=0.12%, 250=66.52%, 500=33.28% cpu : usr=0.30%, sys=1.67%, 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=179680: Mon Aug 24 17:23:19 2026 read: IOPS=31, BW=128KiB/s (131kB/s)(4984KiB/39000msec) slat (usec): min=3036, max=95846, avg=17306.82, stdev=10341.24 clat (msec): min=72, max=501, avg=229.67, stdev=63.04 lat (msec): min=87, max=534, avg=246.98, stdev=66.45 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 138], 10.00th=[ 159], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 253], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 342], | 99.00th=[ 426], 99.50th=[ 447], 99.90th=[ 481], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 7, max= 255, per=24.77%, avg=127.34, stdev=39.45, samples=77 iops : min= 1, max= 63, avg=31.31, stdev= 9.88, samples=77 write: IOPS=33, BW=135KiB/s (138kB/s)(5256KiB/39000msec); 0 zone resets slat (usec): min=31, max=13704, avg=226.94, stdev=723.89 clat (msec): min=70, max=461, avg=236.62, stdev=60.53 lat (msec): min=70, max=461, avg=236.86, stdev=60.54 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 148], 10.00th=[ 161], 20.00th=[ 186], | 30.00th=[ 205], 40.00th=[ 218], 50.00th=[ 230], 60.00th=[ 245], | 70.00th=[ 259], 80.00th=[ 284], 90.00th=[ 317], 95.00th=[ 347], | 99.00th=[ 401], 99.50th=[ 439], 99.90th=[ 460], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 28, max= 239, per=24.98%, avg=133.64, stdev=37.95, samples=77 iops : min= 7, max= 59, avg=32.88, stdev= 9.50, samples=77 lat (msec) : 100=0.08%, 250=65.59%, 500=34.30%, 750=0.04% cpu : usr=0.29%, sys=1.57%, ctx=4230, 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=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=179681: Mon Aug 24 17:23:19 2026 read: IOPS=32, BW=130KiB/s (133kB/s)(5060KiB/38895msec) slat (usec): min=37, max=294384, avg=17442.39, stdev=13176.75 clat (msec): min=28, max=544, avg=230.27, stdev=65.51 lat (msec): min=51, max=563, avg=247.72, stdev=68.49 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 144], 10.00th=[ 161], 20.00th=[ 176], | 30.00th=[ 194], 40.00th=[ 207], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 275], 90.00th=[ 317], 95.00th=[ 355], | 99.00th=[ 443], 99.50th=[ 464], 99.90th=[ 531], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 63, max= 223, per=25.15%, avg=129.27, stdev=35.41, samples=77 iops : min= 15, max= 55, avg=31.78, stdev= 8.88, samples=77 write: IOPS=33, BW=133KiB/s (136kB/s)(5180KiB/38895msec); 0 zone resets slat (usec): min=31, max=14616, avg=275.98, stdev=910.66 clat (msec): min=106, max=471, avg=237.53, stdev=63.65 lat (msec): min=108, max=471, avg=237.81, stdev=63.63 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 150], 10.00th=[ 165], 20.00th=[ 188], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 228], 60.00th=[ 241], | 70.00th=[ 259], 80.00th=[ 284], 90.00th=[ 326], 95.00th=[ 359], | 99.00th=[ 439], 99.50th=[ 451], 99.90th=[ 468], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 56, max= 246, per=24.76%, avg=132.44, stdev=33.09, samples=77 iops : min= 14, max= 61, avg=32.57, stdev= 8.29, samples=77 lat (msec) : 50=0.08%, 250=66.80%, 500=33.05%, 750=0.08% cpu : usr=0.27%, sys=1.77%, ctx=4234, 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=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=515KiB/s (527kB/s), 128KiB/s-130KiB/s (131kB/s-133kB/s), io=19.6MiB (20.5MB), run=38841-39000msec WRITE: bw=536KiB/s (549kB/s), 133KiB/s-136KiB/s (136kB/s-139kB/s), io=20.4MiB (21.4MB), run=38841-39000msec 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=179692: Mon Aug 24 17:23:31 2026 read: IOPS=1, BW=68.7MiB/s (72.1MB/s)(40.0MiB/582msec) slat (nsec): min=32649k, max=32649k, avg=32649143.00, stdev= 0.00 clat (nsec): min=522337k, max=522337k, avg=522336675.00, stdev= 0.00 lat (nsec): min=554991k, max=554991k, avg=554991409.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.41%, ctx=4, 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=68.7MiB/s (72.1MB/s), 68.7MiB/s-68.7MiB/s (72.1MB/s-72.1MB/s), io=40.0MiB (41.9MB), run=582-582msec 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