== sanity test 398c: run fio to test AIO ================= 02:51:40 (1789368700) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.156248 s, 268 MB/s osc.lustre-OST0000-osc-ffff95a8f8c28800.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=151658: Mon Sep 14 02:52:17 2026 write: IOPS=76, BW=306KiB/s (313kB/s)(10.0MiB/33480msec); 0 zone resets slat (usec): min=24, max=2398, avg=141.37, stdev=92.00 clat (msec): min=76, max=333, avg=208.82, stdev=39.35 lat (msec): min=76, max=333, avg=208.96, stdev=39.36 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 144], 10.00th=[ 163], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 230], 80.00th=[ 243], 90.00th=[ 259], 95.00th=[ 271], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 321], 99.95th=[ 330], | 99.99th=[ 334] bw ( KiB/s): min= 224, max= 515, per=24.91%, avg=304.64, stdev=45.63, samples=66 iops : min= 56, max= 128, avg=76.14, stdev=11.35, samples=66 lat (msec) : 100=0.86%, 250=83.95%, 500=15.20% cpu : usr=0.16%, sys=0.96%, ctx=2770, 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=151659: Mon Sep 14 02:52:17 2026 write: IOPS=76, BW=306KiB/s (314kB/s)(10.0MiB/33433msec); 0 zone resets slat (usec): min=23, max=622, avg=133.23, stdev=76.20 clat (msec): min=44, max=349, avg=208.70, stdev=40.80 lat (msec): min=44, max=349, avg=208.83, stdev=40.81 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 146], 10.00th=[ 163], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 230], 80.00th=[ 243], 90.00th=[ 257], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 351] bw ( KiB/s): min= 216, max= 617, per=24.95%, avg=305.09, stdev=56.09, samples=66 iops : min= 54, max= 154, avg=76.26, stdev=13.99, samples=66 lat (msec) : 50=0.62%, 100=0.66%, 250=83.98%, 500=14.73% cpu : usr=0.20%, sys=0.85%, ctx=2530, 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=151660: Mon Sep 14 02:52:17 2026 write: IOPS=76, BW=306KiB/s (313kB/s)(10.0MiB/33457msec); 0 zone resets slat (usec): min=30, max=1754, avg=142.52, stdev=77.32 clat (msec): min=25, max=349, avg=208.74, stdev=40.32 lat (msec): min=25, max=349, avg=208.88, stdev=40.31 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 144], 10.00th=[ 163], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 230], 80.00th=[ 243], 90.00th=[ 259], 95.00th=[ 271], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 342], | 99.99th=[ 351] bw ( KiB/s): min= 240, max= 527, per=24.91%, avg=304.70, stdev=44.15, samples=66 iops : min= 60, max= 131, avg=76.15, stdev=10.97, samples=66 lat (msec) : 50=0.12%, 100=1.21%, 250=83.32%, 500=15.35% cpu : usr=0.16%, sys=0.95%, ctx=2834, 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=151661: Mon Sep 14 02:52:17 2026 write: IOPS=76, BW=306KiB/s (313kB/s)(10.0MiB/33470msec); 0 zone resets slat (usec): min=24, max=780, avg=137.65, stdev=69.78 clat (msec): min=78, max=336, avg=208.79, stdev=38.87 lat (msec): min=79, max=336, avg=208.93, stdev=38.87 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 150], 10.00th=[ 165], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 230], 80.00th=[ 241], 90.00th=[ 255], 95.00th=[ 268], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 338] bw ( KiB/s): min= 200, max= 515, per=24.90%, avg=304.52, stdev=44.43, samples=66 iops : min= 50, max= 128, avg=76.11, stdev=11.05, samples=66 lat (msec) : 100=0.94%, 250=85.00%, 500=14.06% cpu : usr=0.17%, sys=0.91%, ctx=2724, 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=1223KiB/s (1253kB/s), 306KiB/s-306KiB/s (313kB/s-314kB/s), io=40.0MiB (41.9MB), run=33433-33480msec 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=151675: Mon Sep 14 02:52:44 2026 read: IOPS=52, BW=210KiB/s (215kB/s)(5048KiB/24037msec) slat (usec): min=1153, max=9485, avg=2929.47, stdev=1120.16 clat (msec): min=3, max=151, avg=92.21, stdev=17.46 lat (msec): min=7, max=155, avg=95.14, stdev=17.70 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 66], 10.00th=[ 71], 20.00th=[ 79], | 30.00th=[ 83], 40.00th=[ 88], 50.00th=[ 92], 60.00th=[ 97], | 70.00th=[ 103], 80.00th=[ 108], 90.00th=[ 114], 95.00th=[ 120], | 99.00th=[ 133], 99.50th=[ 138], 99.90th=[ 150], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 112, max= 312, per=25.05%, avg=208.96, stdev=46.16, samples=47 iops : min= 28, max= 78, avg=52.23, stdev=11.54, samples=47 write: IOPS=54, BW=216KiB/s (221kB/s)(5192KiB/24037msec); 0 zone resets slat (usec): min=30, max=2764, avg=119.16, stdev=96.79 clat (msec): min=67, max=357, avg=202.81, stdev=45.85 lat (msec): min=67, max=357, avg=202.93, stdev=45.86 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 241], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 347], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 160, max= 304, per=24.73%, avg=214.64, stdev=32.40, samples=47 iops : min= 40, max= 76, avg=53.66, stdev= 8.10, samples=47 lat (msec) : 4=0.04%, 20=0.16%, 50=0.16%, 100=33.40%, 250=58.95% lat (msec) : 500=7.30% cpu : usr=0.22%, sys=1.45%, ctx=4933, 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=151676: Mon Sep 14 02:52:44 2026 read: IOPS=51, BW=207KiB/s (212kB/s)(4976KiB/24022msec) slat (usec): min=1036, max=9143, avg=2935.87, stdev=1089.17 clat (msec): min=6, max=192, avg=91.93, stdev=18.66 lat (msec): min=10, max=194, avg=94.86, stdev=18.85 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 64], 10.00th=[ 70], 20.00th=[ 79], | 30.00th=[ 84], 40.00th=[ 88], 50.00th=[ 92], 60.00th=[ 97], | 70.00th=[ 102], 80.00th=[ 107], 90.00th=[ 113], 95.00th=[ 121], | 99.00th=[ 136], 99.50th=[ 142], 99.90th=[ 178], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 128, max= 328, per=24.75%, avg=206.40, stdev=48.34, samples=47 iops : min= 32, max= 82, avg=51.60, stdev=12.08, samples=47 write: IOPS=54, BW=219KiB/s (224kB/s)(5264KiB/24022msec); 0 zone resets slat (usec): min=34, max=563, avg=117.74, stdev=65.56 clat (msec): min=80, max=334, avg=201.63, stdev=44.99 lat (msec): min=80, max=334, avg=201.75, stdev=44.99 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 160, max= 312, per=25.12%, avg=218.06, stdev=35.84, samples=47 iops : min= 40, max= 78, avg=54.51, stdev= 8.96, samples=47 lat (msec) : 10=0.04%, 20=0.31%, 50=0.27%, 100=33.01%, 250=58.67% lat (msec) : 500=7.70% cpu : usr=0.24%, sys=1.44%, ctx=4885, 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=151677: Mon Sep 14 02:52:44 2026 read: IOPS=51, BW=207KiB/s (212kB/s)(4984KiB/24059msec) slat (usec): min=1055, max=7550, avg=2921.41, stdev=1081.12 clat (msec): min=5, max=139, avg=92.64, stdev=18.13 lat (msec): min=7, max=143, avg=95.57, stdev=18.28 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 79], | 30.00th=[ 84], 40.00th=[ 89], 50.00th=[ 93], 60.00th=[ 99], | 70.00th=[ 104], 80.00th=[ 108], 90.00th=[ 115], 95.00th=[ 121], | 99.00th=[ 131], 99.50th=[ 134], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 104, max= 328, per=24.80%, avg=206.81, stdev=54.31, samples=47 iops : min= 26, max= 82, avg=51.70, stdev=13.58, samples=47 write: IOPS=54, BW=218KiB/s (224kB/s)(5256KiB/24059msec); 0 zone resets slat (usec): min=36, max=799, avg=116.85, stdev=63.84 clat (msec): min=72, max=340, avg=201.51, stdev=46.34 lat (msec): min=73, max=340, avg=201.63, stdev=46.34 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 127], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 330], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 152, max= 296, per=24.85%, avg=215.70, stdev=32.77, samples=47 iops : min= 38, max= 74, avg=53.91, stdev= 8.19, samples=47 lat (msec) : 10=0.04%, 20=0.23%, 50=0.27%, 100=31.09%, 250=60.98% lat (msec) : 500=7.38% cpu : usr=0.19%, sys=1.46%, ctx=4968, 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=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=151678: Mon Sep 14 02:52:44 2026 read: IOPS=52, BW=212KiB/s (217kB/s)(5060KiB/23882msec) slat (usec): min=55, max=9386, avg=2912.28, stdev=1097.56 clat (msec): min=4, max=184, avg=91.04, stdev=19.06 lat (msec): min=8, max=186, avg=93.96, stdev=19.29 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 64], 10.00th=[ 70], 20.00th=[ 78], | 30.00th=[ 82], 40.00th=[ 87], 50.00th=[ 91], 60.00th=[ 96], | 70.00th=[ 102], 80.00th=[ 107], 90.00th=[ 114], 95.00th=[ 120], | 99.00th=[ 136], 99.50th=[ 140], 99.90th=[ 167], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 96, max= 352, per=25.50%, avg=212.64, stdev=50.29, samples=47 iops : min= 24, max= 88, avg=53.15, stdev=12.56, samples=47 write: IOPS=54, BW=217KiB/s (222kB/s)(5180KiB/23882msec); 0 zone resets slat (usec): min=37, max=667, avg=117.44, stdev=64.13 clat (msec): min=38, max=375, avg=202.89, stdev=46.90 lat (msec): min=38, max=375, avg=203.01, stdev=46.90 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 226], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 279], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 168, max= 296, per=24.93%, avg=216.36, stdev=29.68, samples=47 iops : min= 42, max= 74, avg=54.09, stdev= 7.41, samples=47 lat (msec) : 10=0.12%, 20=0.35%, 50=0.39%, 100=33.44%, 250=57.62% lat (msec) : 500=8.09% cpu : usr=0.18%, sys=1.49%, ctx=4962, 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=834KiB/s (854kB/s), 207KiB/s-212KiB/s (212kB/s-217kB/s), io=19.6MiB (20.5MB), run=23882-24059msec WRITE: bw=868KiB/s (889kB/s), 216KiB/s-219KiB/s (221kB/s-224kB/s), io=20.4MiB (21.4MB), run=23882-24059msec 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=151685: Mon Sep 14 02:52:47 2026 read: IOPS=9, BW=374MiB/s (392MB/s)(40.0MiB/107msec) slat (nsec): min=10886k, max=10886k, avg=10886003.00, stdev= 0.00 clat (nsec): min=91217k, max=91217k, avg=91216719.00, stdev= 0.00 lat (nsec): min=102106k, max=102106k, avg=102106051.00, stdev= 0.00 clat percentiles (usec): | 1.00th=[90702], 5.00th=[90702], 10.00th=[90702], 20.00th=[90702], | 30.00th=[90702], 40.00th=[90702], 50.00th=[90702], 60.00th=[90702], | 70.00th=[90702], 80.00th=[90702], 90.00th=[90702], 95.00th=[90702], | 99.00th=[90702], 99.50th=[90702], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] lat (msec) : 100=100.00% cpu : usr=0.00%, sys=8.49%, 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=374MiB/s (392MB/s), 374MiB/s-374MiB/s (392MB/s-392MB/s), io=40.0MiB (41.9MB), run=107-107msec 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