== sanity test 398c: run fio to test AIO ================= 23:13:18 (1788837198) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.498198 s, 84.2 MB/s osc.lustre-OST0000-osc-ffff8eaf1835e800.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=179973: Mon Sep 7 23:14:01 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30284msec); 0 zone resets slat (usec): min=22, max=27580, avg=154.64, stdev=807.03 clat (msec): min=17, max=486, avg=188.28, stdev=56.51 lat (msec): min=17, max=486, avg=188.43, stdev=56.52 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 118], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 178], 60.00th=[ 201], | 70.00th=[ 218], 80.00th=[ 239], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 321], 99.50th=[ 330], 99.90th=[ 351], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 143, max= 637, per=25.09%, avg=338.98, stdev=100.59, samples=59 iops : min= 35, max= 159, avg=84.37, stdev=25.23, samples=59 lat (msec) : 20=0.04%, 50=0.04%, 100=2.38%, 250=81.80%, 500=15.74% cpu : usr=0.18%, sys=0.69%, ctx=1659, 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=179974: Mon Sep 7 23:14:01 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30301msec); 0 zone resets slat (usec): min=24, max=20533, avg=203.25, stdev=879.40 clat (msec): min=23, max=352, avg=188.08, stdev=55.58 lat (msec): min=30, max=352, avg=188.28, stdev=55.58 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 113], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 153], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 236], 90.00th=[ 266], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 174, max= 516, per=24.92%, avg=336.70, stdev=95.53, samples=60 iops : min= 43, max= 129, avg=83.85, stdev=23.91, samples=60 lat (msec) : 50=0.20%, 100=2.73%, 250=81.45%, 500=15.62% cpu : usr=0.18%, sys=0.94%, ctx=2626, 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=179975: Mon Sep 7 23:14:01 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30063msec); 0 zone resets slat (usec): min=23, max=20536, avg=184.99, stdev=712.09 clat (msec): min=18, max=403, avg=187.40, stdev=56.49 lat (msec): min=18, max=403, avg=187.58, stdev=56.49 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 182], 60.00th=[ 197], | 70.00th=[ 215], 80.00th=[ 236], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 393], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 135, max= 512, per=25.26%, avg=341.22, stdev=89.47, samples=59 iops : min= 33, max= 128, avg=84.93, stdev=22.44, samples=59 lat (msec) : 20=0.04%, 50=0.12%, 100=2.11%, 250=84.30%, 500=13.44% cpu : usr=0.15%, sys=0.87%, ctx=2392, 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=179976: Mon Sep 7 23:14:01 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30242msec); 0 zone resets slat (usec): min=24, max=17537, avg=166.06, stdev=658.01 clat (msec): min=15, max=401, avg=188.07, stdev=55.76 lat (msec): min=15, max=401, avg=188.24, stdev=55.79 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 117], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 215], 80.00th=[ 239], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 338], 99.50th=[ 342], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 167, max= 572, per=24.97%, avg=337.30, stdev=90.12, samples=60 iops : min= 41, max= 143, avg=83.97, stdev=22.55, samples=60 lat (msec) : 20=0.04%, 50=0.08%, 100=2.27%, 250=83.79%, 500=13.83% cpu : usr=0.14%, sys=0.81%, ctx=2178, 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=1352KiB/s (1384kB/s), 338KiB/s-341KiB/s (346kB/s-349kB/s), io=40.0MiB (41.9MB), run=30063-30301msec 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=179991: Mon Sep 7 23:14:47 2026 read: IOPS=36, BW=148KiB/s (151kB/s)(5048KiB/34203msec) slat (usec): min=55, max=68183, avg=15372.19, stdev=8874.25 clat (msec): min=83, max=415, avg=202.84, stdev=46.60 lat (msec): min=83, max=431, avg=218.22, stdev=48.37 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 342], 99.50th=[ 363], 99.90th=[ 401], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 88, max= 231, per=25.03%, avg=146.70, stdev=31.05, samples=67 iops : min= 22, max= 57, avg=36.21, stdev= 7.79, samples=67 write: IOPS=37, BW=152KiB/s (155kB/s)(5192KiB/34203msec); 0 zone resets slat (usec): min=33, max=9570, avg=180.93, stdev=575.78 clat (msec): min=72, max=348, avg=207.17, stdev=41.36 lat (msec): min=72, max=348, avg=207.36, stdev=41.35 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 144], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 226], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 54, max= 210, per=24.82%, avg=151.42, stdev=35.81, samples=67 iops : min= 13, max= 52, avg=37.39, stdev= 8.99, samples=67 lat (msec) : 100=0.20%, 250=85.08%, 500=14.73% cpu : usr=0.26%, sys=1.52%, ctx=4412, 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=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=179992: Mon Sep 7 23:14:47 2026 read: IOPS=36, BW=145KiB/s (149kB/s)(4976KiB/34206msec) slat (usec): min=2449, max=64819, avg=15096.84, stdev=8558.65 clat (msec): min=22, max=429, avg=201.29, stdev=43.98 lat (msec): min=40, max=456, avg=216.39, stdev=45.56 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 347], 99.90th=[ 388], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 37, max= 247, per=24.66%, avg=144.51, stdev=38.33, samples=67 iops : min= 9, max= 61, avg=35.66, stdev= 9.64, samples=67 write: IOPS=38, BW=154KiB/s (158kB/s)(5264KiB/34206msec); 0 zone resets slat (usec): min=25, max=9891, avg=172.02, stdev=471.67 clat (msec): min=41, max=391, avg=208.58, stdev=43.42 lat (msec): min=42, max=391, avg=208.76, stdev=43.41 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 89, max= 224, per=25.23%, avg=153.93, stdev=33.04, samples=67 iops : min= 22, max= 56, avg=38.03, stdev= 8.25, samples=67 lat (msec) : 50=0.12%, 100=0.04%, 250=85.35%, 500=14.49% cpu : usr=0.23%, sys=1.44%, ctx=4146, 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=179993: Mon Sep 7 23:14:47 2026 read: IOPS=36, BW=146KiB/s (150kB/s)(4984KiB/34104msec) slat (usec): min=40, max=251838, avg=15075.71, stdev=10829.89 clat (msec): min=58, max=505, avg=204.64, stdev=52.56 lat (msec): min=87, max=510, avg=219.72, stdev=53.91 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 239], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 418], 99.50th=[ 447], 99.90th=[ 498], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 55, max= 224, per=24.99%, avg=146.46, stdev=35.33, samples=67 iops : min= 13, max= 56, avg=36.15, stdev= 8.90, samples=67 write: IOPS=38, BW=154KiB/s (158kB/s)(5256KiB/34104msec); 0 zone resets slat (usec): min=28, max=20696, avg=190.91, stdev=745.92 clat (msec): min=39, max=472, avg=205.91, stdev=45.68 lat (msec): min=40, max=472, avg=206.11, stdev=45.70 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 376], 99.50th=[ 422], 99.90th=[ 443], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 78, max= 247, per=25.19%, avg=153.67, stdev=35.71, samples=67 iops : min= 19, max= 61, avg=37.96, stdev= 8.94, samples=67 lat (msec) : 50=0.04%, 100=0.20%, 250=86.84%, 500=12.89%, 750=0.04% cpu : usr=0.27%, sys=1.56%, ctx=3871, 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=179994: Mon Sep 7 23:14:47 2026 read: IOPS=37, BW=148KiB/s (152kB/s)(5060KiB/34096msec) slat (usec): min=2544, max=67846, avg=14958.46, stdev=8427.38 clat (msec): min=25, max=391, avg=201.34, stdev=45.33 lat (msec): min=48, max=432, avg=216.30, stdev=47.14 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 140], 10.00th=[ 150], 20.00th=[ 165], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 330], 99.50th=[ 359], 99.90th=[ 380], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 52, max= 236, per=25.38%, avg=148.73, stdev=33.23, samples=67 iops : min= 13, max= 59, avg=36.73, stdev= 8.31, samples=67 write: IOPS=37, BW=152KiB/s (156kB/s)(5180KiB/34096msec); 0 zone resets slat (usec): min=29, max=15433, avg=206.53, stdev=865.87 clat (msec): min=106, max=428, avg=206.38, stdev=41.15 lat (msec): min=106, max=428, avg=206.59, stdev=41.17 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 146], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 321], 99.50th=[ 351], 99.90th=[ 409], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 52, max= 239, per=24.81%, avg=151.36, stdev=34.62, samples=67 iops : min= 13, max= 59, avg=37.37, stdev= 8.69, samples=67 lat (msec) : 50=0.08%, 250=86.33%, 500=13.59% cpu : usr=0.23%, sys=1.49%, ctx=3705, 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=587KiB/s (601kB/s), 145KiB/s-148KiB/s (149kB/s-152kB/s), io=19.6MiB (20.5MB), run=34096-34206msec WRITE: bw=611KiB/s (625kB/s), 152KiB/s-154KiB/s (155kB/s-158kB/s), io=20.4MiB (21.4MB), run=34096-34206msec 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=180003: Mon Sep 7 23:14:57 2026 read: IOPS=1, BW=73.3MiB/s (76.8MB/s)(40.0MiB/546msec) slat (nsec): min=41075k, max=41075k, avg=41074582.00, stdev= 0.00 clat (nsec): min=467147k, max=467147k, avg=467147052.00, stdev= 0.00 lat (nsec): min=508228k, max=508228k, avg=508228368.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.39%, ctx=5, majf=0, minf=8 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=73.3MiB/s (76.8MB/s), 73.3MiB/s-73.3MiB/s (76.8MB/s-76.8MB/s), io=40.0MiB (41.9MB), run=546-546msec 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