== sanity test 398c: run fio to test AIO ================= 06:56:06 (1788000966) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.295034 s, 142 MB/s osc.lustre-OST0000-osc-ffff8c329ed0c000.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=145781: Sat Aug 29 06:57:48 2026 write: IOPS=26, BW=107KiB/s (109kB/s)(10.0MiB/96004msec); 0 zone resets slat (usec): min=24, max=5309, avg=197.82, stdev=390.15 clat (msec): min=121, max=1148, avg=599.49, stdev=136.34 lat (msec): min=121, max=1148, avg=599.69, stdev=136.36 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 372], 10.00th=[ 435], 20.00th=[ 493], | 30.00th=[ 542], 40.00th=[ 575], 50.00th=[ 609], 60.00th=[ 642], | 70.00th=[ 676], 80.00th=[ 709], 90.00th=[ 768], 95.00th=[ 818], | 99.00th=[ 885], 99.50th=[ 911], 99.90th=[ 953], 99.95th=[ 995], | 99.99th=[ 1150] bw ( KiB/s): min= 39, max= 256, per=25.03%, avg=106.39, stdev=31.31, samples=190 iops : min= 9, max= 64, avg=26.22, stdev= 7.84, samples=190 lat (msec) : 250=1.33%, 500=19.49%, 750=66.41%, 1000=12.73%, 2000=0.04% cpu : usr=0.06%, sys=0.33%, ctx=1832, 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=145782: Sat Aug 29 06:57:48 2026 write: IOPS=26, BW=106KiB/s (109kB/s)(10.0MiB/96373msec); 0 zone resets slat (usec): min=23, max=5920, avg=198.98, stdev=385.66 clat (msec): min=84, max=1083, avg=601.46, stdev=131.67 lat (msec): min=84, max=1083, avg=601.66, stdev=131.68 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 384], 10.00th=[ 439], 20.00th=[ 493], | 30.00th=[ 542], 40.00th=[ 575], 50.00th=[ 609], 60.00th=[ 634], | 70.00th=[ 676], 80.00th=[ 709], 90.00th=[ 776], 95.00th=[ 818], | 99.00th=[ 885], 99.50th=[ 911], 99.90th=[ 986], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 39, max= 247, per=24.78%, avg=105.30, stdev=27.80, samples=192 iops : min= 9, max= 61, avg=25.93, stdev= 6.98, samples=192 lat (msec) : 100=0.04%, 250=0.70%, 500=20.78%, 750=65.82%, 1000=12.58% lat (msec) : 2000=0.08% cpu : usr=0.07%, sys=0.33%, ctx=2319, 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=145783: Sat Aug 29 06:57:48 2026 write: IOPS=26, BW=106KiB/s (109kB/s)(10.0MiB/96368msec); 0 zone resets slat (usec): min=25, max=4528, avg=194.31, stdev=372.08 clat (msec): min=191, max=992, avg=601.34, stdev=131.88 lat (msec): min=191, max=992, avg=601.54, stdev=131.89 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 388], 10.00th=[ 439], 20.00th=[ 498], | 30.00th=[ 535], 40.00th=[ 575], 50.00th=[ 609], 60.00th=[ 634], | 70.00th=[ 676], 80.00th=[ 709], 90.00th=[ 768], 95.00th=[ 818], | 99.00th=[ 894], 99.50th=[ 927], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 995] bw ( KiB/s): min= 23, max= 247, per=24.78%, avg=105.30, stdev=31.19, samples=192 iops : min= 5, max= 61, avg=25.93, stdev= 7.82, samples=192 lat (msec) : 250=0.66%, 500=20.04%, 750=66.64%, 1000=12.66% cpu : usr=0.06%, sys=0.34%, ctx=1757, 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=145784: Sat Aug 29 06:57:48 2026 write: IOPS=26, BW=106KiB/s (109kB/s)(10.0MiB/96371msec); 0 zone resets slat (usec): min=27, max=6369, avg=222.02, stdev=415.17 clat (msec): min=59, max=1015, avg=601.50, stdev=133.88 lat (msec): min=60, max=1015, avg=601.73, stdev=133.90 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 380], 10.00th=[ 443], 20.00th=[ 498], | 30.00th=[ 542], 40.00th=[ 575], 50.00th=[ 609], 60.00th=[ 634], | 70.00th=[ 676], 80.00th=[ 709], 90.00th=[ 768], 95.00th=[ 810], | 99.00th=[ 911], 99.50th=[ 936], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 23, max= 231, per=24.77%, avg=105.29, stdev=28.79, samples=192 iops : min= 5, max= 57, avg=25.93, stdev= 7.22, samples=192 lat (msec) : 100=0.12%, 250=1.41%, 500=19.10%, 750=66.91%, 1000=12.30% lat (msec) : 2000=0.16% cpu : usr=0.06%, sys=0.35%, ctx=2645, 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=425KiB/s (435kB/s), 106KiB/s-107KiB/s (109kB/s-109kB/s), io=40.0MiB (41.9MB), run=96004-96373msec 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=145808: Sat Aug 29 06:59:00 2026 read: IOPS=18, BW=74.6KiB/s (76.4kB/s)(5048KiB/67680msec) slat (usec): min=2100, max=28548, avg=8037.35, stdev=3463.36 clat (msec): min=7, max=477, avg=261.14, stdev=55.89 lat (msec): min=11, max=489, avg=269.19, stdev=56.53 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 180], 10.00th=[ 199], 20.00th=[ 220], | 30.00th=[ 232], 40.00th=[ 247], 50.00th=[ 257], 60.00th=[ 271], | 70.00th=[ 288], 80.00th=[ 305], 90.00th=[ 330], 95.00th=[ 355], | 99.00th=[ 414], 99.50th=[ 430], 99.90th=[ 472], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 15, max= 152, per=25.10%, avg=74.31, stdev=26.77, samples=134 iops : min= 3, max= 38, avg=18.22, stdev= 6.69, samples=134 write: IOPS=19, BW=76.7KiB/s (78.6kB/s)(5192KiB/67680msec); 0 zone resets slat (usec): min=31, max=9714, avg=256.58, stdev=515.93 clat (msec): min=219, max=1079, avg=570.95, stdev=134.43 lat (msec): min=219, max=1079, avg=571.21, stdev=134.45 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 342], 10.00th=[ 393], 20.00th=[ 468], | 30.00th=[ 506], 40.00th=[ 542], 50.00th=[ 567], 60.00th=[ 600], | 70.00th=[ 634], 80.00th=[ 676], 90.00th=[ 743], 95.00th=[ 802], | 99.00th=[ 927], 99.50th=[ 969], 99.90th=[ 1036], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 31, max= 136, per=24.71%, avg=76.10, stdev=21.46, samples=134 iops : min= 7, max= 34, avg=18.66, stdev= 5.40, samples=134 lat (msec) : 10=0.12%, 50=0.16%, 250=21.25%, 500=41.72%, 750=32.23% lat (msec) : 1000=4.41%, 2000=0.12% cpu : usr=0.12%, sys=0.81%, ctx=5055, 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=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=145809: Sat Aug 29 06:59:00 2026 read: IOPS=18, BW=73.5KiB/s (75.3kB/s)(4976KiB/67698msec) slat (usec): min=2575, max=24611, avg=8099.26, stdev=3388.75 clat (msec): min=11, max=443, avg=258.49, stdev=57.02 lat (msec): min=19, max=452, avg=266.60, stdev=57.58 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 180], 10.00th=[ 197], 20.00th=[ 213], | 30.00th=[ 232], 40.00th=[ 245], 50.00th=[ 257], 60.00th=[ 268], | 70.00th=[ 284], 80.00th=[ 305], 90.00th=[ 330], 95.00th=[ 351], | 99.00th=[ 401], 99.50th=[ 430], 99.90th=[ 439], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 7, max= 152, per=24.60%, avg=72.81, stdev=27.46, samples=134 iops : min= 1, max= 38, avg=17.84, stdev= 6.89, samples=134 write: IOPS=19, BW=77.8KiB/s (79.6kB/s)(5264KiB/67698msec); 0 zone resets slat (usec): min=29, max=7188, avg=257.30, stdev=513.49 clat (msec): min=77, max=1041, avg=570.04, stdev=133.73 lat (msec): min=77, max=1042, avg=570.30, stdev=133.76 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 342], 10.00th=[ 401], 20.00th=[ 460], | 30.00th=[ 502], 40.00th=[ 535], 50.00th=[ 567], 60.00th=[ 600], | 70.00th=[ 634], 80.00th=[ 684], 90.00th=[ 735], 95.00th=[ 802], | 99.00th=[ 902], 99.50th=[ 944], 99.90th=[ 986], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 23, max= 136, per=25.00%, avg=77.00, stdev=22.89, samples=134 iops : min= 5, max= 34, avg=18.89, stdev= 5.77, samples=134 lat (msec) : 20=0.12%, 50=0.23%, 100=0.20%, 250=21.45%, 500=42.15% lat (msec) : 750=31.60%, 1000=4.22%, 2000=0.04% cpu : usr=0.12%, sys=0.81%, ctx=4979, majf=0, minf=15 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=145810: Sat Aug 29 06:59:00 2026 read: IOPS=18, BW=73.6KiB/s (75.4kB/s)(4984KiB/67677msec) slat (usec): min=2189, max=31337, avg=8059.61, stdev=3448.59 clat (msec): min=11, max=477, avg=259.57, stdev=54.95 lat (msec): min=19, max=482, avg=267.64, stdev=55.55 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 182], 10.00th=[ 197], 20.00th=[ 215], | 30.00th=[ 232], 40.00th=[ 247], 50.00th=[ 257], 60.00th=[ 271], | 70.00th=[ 288], 80.00th=[ 305], 90.00th=[ 330], 95.00th=[ 355], | 99.00th=[ 401], 99.50th=[ 414], 99.90th=[ 430], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 15, max= 152, per=24.87%, avg=73.63, stdev=27.95, samples=134 iops : min= 3, max= 38, avg=18.04, stdev= 7.03, samples=134 write: IOPS=19, BW=77.7KiB/s (79.5kB/s)(5256KiB/67677msec); 0 zone resets slat (usec): min=35, max=13754, avg=249.07, stdev=575.76 clat (msec): min=206, max=989, avg=568.64, stdev=133.17 lat (msec): min=207, max=989, avg=568.89, stdev=133.17 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 338], 10.00th=[ 388], 20.00th=[ 464], | 30.00th=[ 502], 40.00th=[ 535], 50.00th=[ 567], 60.00th=[ 600], | 70.00th=[ 634], 80.00th=[ 684], 90.00th=[ 735], 95.00th=[ 793], | 99.00th=[ 894], 99.50th=[ 944], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 39, max= 151, per=24.95%, avg=76.84, stdev=21.92, samples=134 iops : min= 9, max= 37, avg=18.84, stdev= 5.46, samples=134 lat (msec) : 20=0.08%, 50=0.23%, 100=0.04%, 250=21.17%, 500=42.62% lat (msec) : 750=31.76%, 1000=4.10% cpu : usr=0.11%, sys=0.85%, ctx=5014, 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=145811: Sat Aug 29 06:59:00 2026 read: IOPS=18, BW=74.8KiB/s (76.6kB/s)(5060KiB/67677msec) slat (usec): min=54, max=27013, avg=7925.42, stdev=3443.44 clat (msec): min=9, max=466, avg=261.16, stdev=53.78 lat (msec): min=9, max=471, avg=269.09, stdev=54.38 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 184], 10.00th=[ 201], 20.00th=[ 222], | 30.00th=[ 234], 40.00th=[ 247], 50.00th=[ 259], 60.00th=[ 271], | 70.00th=[ 288], 80.00th=[ 305], 90.00th=[ 330], 95.00th=[ 351], | 99.00th=[ 393], 99.50th=[ 401], 99.90th=[ 443], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 15, max= 158, per=25.17%, avg=74.50, stdev=26.87, samples=134 iops : min= 3, max= 39, avg=18.26, stdev= 6.74, samples=134 write: IOPS=19, BW=76.5KiB/s (78.4kB/s)(5180KiB/67677msec); 0 zone resets slat (usec): min=30, max=6992, avg=239.76, stdev=444.19 clat (msec): min=98, max=1099, avg=572.58, stdev=140.31 lat (msec): min=98, max=1099, avg=572.83, stdev=140.30 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 347], 10.00th=[ 393], 20.00th=[ 464], | 30.00th=[ 506], 40.00th=[ 542], 50.00th=[ 567], 60.00th=[ 600], | 70.00th=[ 634], 80.00th=[ 684], 90.00th=[ 735], 95.00th=[ 827], | 99.00th=[ 944], 99.50th=[ 1003], 99.90th=[ 1045], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 23, max= 143, per=24.65%, avg=75.92, stdev=21.34, samples=134 iops : min= 5, max= 35, avg=18.61, stdev= 5.36, samples=134 lat (msec) : 10=0.04%, 20=0.08%, 50=0.20%, 100=0.12%, 250=21.33% lat (msec) : 500=42.23%, 750=31.56%, 1000=4.22%, 2000=0.23% cpu : usr=0.12%, sys=0.81%, ctx=5097, majf=0, minf=16 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=296KiB/s (304kB/s), 73.5KiB/s-74.8KiB/s (75.3kB/s-76.6kB/s), io=19.6MiB (20.5MB), run=67677-67698msec WRITE: bw=309KiB/s (316kB/s), 76.5KiB/s-77.8KiB/s (78.4kB/s-79.6kB/s), io=20.4MiB (21.4MB), run=67677-67698msec 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=145824: Sat Aug 29 06:59:05 2026 read: IOPS=4, BW=179MiB/s (188MB/s)(40.0MiB/223msec) slat (nsec): min=19832k, max=19832k, avg=19832313.00, stdev= 0.00 clat (nsec): min=192293k, max=192293k, avg=192292906.00, stdev= 0.00 lat (nsec): min=212141k, max=212141k, avg=212140948.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 192], | 70.00th=[ 192], 80.00th=[ 192], 90.00th=[ 192], 95.00th=[ 192], | 99.00th=[ 192], 99.50th=[ 192], 99.90th=[ 192], 99.95th=[ 192], | 99.99th=[ 192] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=5.86%, ctx=42, 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=179MiB/s (188MB/s), 179MiB/s-179MiB/s (188MB/s-188MB/s), io=40.0MiB (41.9MB), run=223-223msec 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