== sanity test 398c: run fio to test AIO ================= 15:07:16 (1788808036) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.311531 s, 135 MB/s osc.lustre-OST0000-osc-ffff9e195e5fc000.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=180522: Mon Sep 7 15:07:42 2026 write: IOPS=132, BW=530KiB/s (543kB/s)(10.0MiB/19311msec); 0 zone resets slat (usec): min=24, max=44072, avg=242.63, stdev=1079.93 clat (msec): min=18, max=227, avg=119.66, stdev=32.75 lat (msec): min=18, max=227, avg=119.90, stdev=32.71 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 72], 10.00th=[ 81], 20.00th=[ 91], | 30.00th=[ 102], 40.00th=[ 110], 50.00th=[ 116], 60.00th=[ 126], | 70.00th=[ 136], 80.00th=[ 146], 90.00th=[ 165], 95.00th=[ 180], | 99.00th=[ 213], 99.50th=[ 218], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 342, max= 766, per=24.93%, avg=528.24, stdev=109.92, samples=38 iops : min= 85, max= 191, avg=131.76, stdev=27.48, samples=38 lat (msec) : 20=0.04%, 50=0.43%, 100=28.44%, 250=71.09% cpu : usr=0.28%, sys=1.44%, ctx=2995, 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=180523: Mon Sep 7 15:07:42 2026 write: IOPS=132, BW=531KiB/s (544kB/s)(10.0MiB/19278msec); 0 zone resets slat (usec): min=23, max=12088, avg=222.63, stdev=612.00 clat (msec): min=16, max=254, avg=120.13, stdev=32.94 lat (msec): min=17, max=254, avg=120.35, stdev=32.93 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 73], 10.00th=[ 79], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 110], 50.00th=[ 118], 60.00th=[ 125], | 70.00th=[ 134], 80.00th=[ 148], 90.00th=[ 165], 95.00th=[ 180], | 99.00th=[ 213], 99.50th=[ 220], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 342, max= 758, per=25.02%, avg=530.24, stdev=110.59, samples=38 iops : min= 85, max= 189, avg=132.26, stdev=27.63, samples=38 lat (msec) : 20=0.12%, 100=27.07%, 250=72.58%, 500=0.23% cpu : usr=0.32%, sys=1.74%, ctx=2889, 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=180524: Mon Sep 7 15:07:42 2026 write: IOPS=132, BW=530KiB/s (543kB/s)(10.0MiB/19310msec); 0 zone resets slat (usec): min=23, max=17226, avg=219.69, stdev=780.75 clat (msec): min=48, max=249, avg=119.69, stdev=32.89 lat (msec): min=48, max=249, avg=119.92, stdev=32.89 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 73], 10.00th=[ 80], 20.00th=[ 91], | 30.00th=[ 103], 40.00th=[ 110], 50.00th=[ 116], 60.00th=[ 126], | 70.00th=[ 133], 80.00th=[ 146], 90.00th=[ 165], 95.00th=[ 180], | 99.00th=[ 211], 99.50th=[ 228], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 251] bw ( KiB/s): min= 367, max= 766, per=24.92%, avg=528.05, stdev=106.13, samples=38 iops : min= 91, max= 191, avg=131.71, stdev=26.53, samples=38 lat (msec) : 50=0.62%, 100=27.23%, 250=72.15% cpu : usr=0.35%, sys=1.53%, ctx=2761, 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=180525: Mon Sep 7 15:07:42 2026 write: IOPS=132, BW=530KiB/s (543kB/s)(10.0MiB/19323msec); 0 zone resets slat (usec): min=22, max=10172, avg=190.01, stdev=545.81 clat (msec): min=12, max=250, avg=119.76, stdev=33.16 lat (msec): min=13, max=251, avg=119.95, stdev=33.15 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 72], 10.00th=[ 80], 20.00th=[ 92], | 30.00th=[ 102], 40.00th=[ 110], 50.00th=[ 117], 60.00th=[ 127], | 70.00th=[ 134], 80.00th=[ 146], 90.00th=[ 165], 95.00th=[ 176], | 99.00th=[ 211], 99.50th=[ 230], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 359, max= 766, per=24.97%, avg=529.21, stdev=114.92, samples=38 iops : min= 89, max= 191, avg=132.00, stdev=28.71, samples=38 lat (msec) : 20=0.08%, 50=0.12%, 100=29.22%, 250=70.20%, 500=0.39% cpu : usr=0.25%, sys=1.32%, ctx=2557, 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=2120KiB/s (2171kB/s), 530KiB/s-531KiB/s (543kB/s-544kB/s), io=40.0MiB (41.9MB), run=19278-19323msec 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=180538: Mon Sep 7 15:08:06 2026 read: IOPS=70, BW=282KiB/s (288kB/s)(5048KiB/17924msec) slat (usec): min=32, max=31523, avg=7786.52, stdev=3863.15 clat (msec): min=10, max=205, avg=104.99, stdev=23.06 lat (msec): min=22, max=212, avg=112.79, stdev=23.83 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 74], 10.00th=[ 81], 20.00th=[ 87], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 103], 60.00th=[ 107], | 70.00th=[ 114], 80.00th=[ 124], 90.00th=[ 136], 95.00th=[ 146], | 99.00th=[ 176], 99.50th=[ 190], 99.90th=[ 201], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 108, max= 368, per=25.00%, avg=279.74, stdev=52.49, samples=35 iops : min= 27, max= 92, avg=69.57, stdev=13.16, samples=35 write: IOPS=72, BW=290KiB/s (297kB/s)(5192KiB/17924msec); 0 zone resets slat (usec): min=35, max=6397, avg=219.82, stdev=496.98 clat (msec): min=16, max=194, avg=109.57, stdev=21.85 lat (msec): min=21, max=195, avg=109.79, stdev=21.82 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 81], 10.00th=[ 87], 20.00th=[ 92], | 30.00th=[ 97], 40.00th=[ 102], 50.00th=[ 107], 60.00th=[ 112], | 70.00th=[ 117], 80.00th=[ 127], 90.00th=[ 138], 95.00th=[ 153], | 99.00th=[ 176], 99.50th=[ 182], 99.90th=[ 192], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 136, max= 366, per=24.81%, avg=289.00, stdev=52.46, samples=35 iops : min= 34, max= 91, avg=71.89, stdev=13.14, samples=35 lat (msec) : 20=0.12%, 50=0.23%, 100=40.31%, 250=59.34% cpu : usr=0.44%, sys=2.89%, ctx=4660, 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=180539: Mon Sep 7 15:08:06 2026 read: IOPS=69, BW=278KiB/s (285kB/s)(4976KiB/17876msec) slat (usec): min=1939, max=30509, avg=7811.08, stdev=3694.63 clat (msec): min=26, max=212, avg=104.76, stdev=22.29 lat (msec): min=33, max=234, avg=112.58, stdev=23.21 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 77], 10.00th=[ 81], 20.00th=[ 88], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 102], 60.00th=[ 106], | 70.00th=[ 112], 80.00th=[ 121], 90.00th=[ 136], 95.00th=[ 148], | 99.00th=[ 174], 99.50th=[ 182], 99.90th=[ 207], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 95, max= 368, per=24.83%, avg=277.80, stdev=55.47, samples=35 iops : min= 23, max= 92, avg=69.06, stdev=13.95, samples=35 write: IOPS=73, BW=294KiB/s (302kB/s)(5264KiB/17876msec); 0 zone resets slat (usec): min=24, max=5477, avg=198.14, stdev=436.98 clat (msec): min=27, max=217, avg=109.21, stdev=24.15 lat (msec): min=27, max=217, avg=109.41, stdev=24.17 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 79], 10.00th=[ 84], 20.00th=[ 90], | 30.00th=[ 95], 40.00th=[ 101], 50.00th=[ 106], 60.00th=[ 111], | 70.00th=[ 118], 80.00th=[ 126], 90.00th=[ 140], 95.00th=[ 155], | 99.00th=[ 184], 99.50th=[ 207], 99.90th=[ 213], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 170, max= 392, per=25.36%, avg=295.43, stdev=53.08, samples=35 iops : min= 42, max= 98, avg=73.49, stdev=13.35, samples=35 lat (msec) : 50=0.23%, 100=42.46%, 250=57.30% cpu : usr=0.54%, sys=2.86%, ctx=4869, 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=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=180540: Mon Sep 7 15:08:06 2026 read: IOPS=70, BW=281KiB/s (287kB/s)(4984KiB/17767msec) slat (usec): min=36, max=29693, avg=7869.62, stdev=3783.96 clat (msec): min=15, max=204, avg=105.18, stdev=23.59 lat (msec): min=21, max=218, avg=113.06, stdev=24.54 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 74], 10.00th=[ 81], 20.00th=[ 87], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 103], 60.00th=[ 108], | 70.00th=[ 114], 80.00th=[ 124], 90.00th=[ 138], 95.00th=[ 148], | 99.00th=[ 178], 99.50th=[ 186], 99.90th=[ 203], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 166, max= 366, per=25.17%, avg=281.69, stdev=42.27, samples=35 iops : min= 41, max= 91, avg=70.06, stdev=10.58, samples=35 write: IOPS=73, BW=296KiB/s (303kB/s)(5256KiB/17767msec); 0 zone resets slat (usec): min=33, max=11173, avg=231.20, stdev=729.67 clat (msec): min=28, max=190, avg=108.42, stdev=22.45 lat (msec): min=29, max=190, avg=108.66, stdev=22.43 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 79], 10.00th=[ 85], 20.00th=[ 91], | 30.00th=[ 95], 40.00th=[ 101], 50.00th=[ 105], 60.00th=[ 110], | 70.00th=[ 117], 80.00th=[ 128], 90.00th=[ 140], 95.00th=[ 150], | 99.00th=[ 171], 99.50th=[ 180], 99.90th=[ 190], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 168, max= 440, per=25.32%, avg=295.00, stdev=59.61, samples=35 iops : min= 42, max= 110, avg=73.37, stdev=14.98, samples=35 lat (msec) : 20=0.08%, 50=0.35%, 100=42.62%, 250=56.95% cpu : usr=0.51%, sys=2.90%, ctx=4867, 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=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=180541: Mon Sep 7 15:08:06 2026 read: IOPS=70, BW=283KiB/s (289kB/s)(5060KiB/17907msec) slat (usec): min=42, max=38087, avg=7839.21, stdev=3823.05 clat (msec): min=13, max=208, avg=105.30, stdev=23.06 lat (msec): min=22, max=223, avg=113.15, stdev=24.04 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 75], 10.00th=[ 81], 20.00th=[ 87], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 103], 60.00th=[ 107], | 70.00th=[ 114], 80.00th=[ 123], 90.00th=[ 134], 95.00th=[ 146], | 99.00th=[ 184], 99.50th=[ 190], 99.90th=[ 201], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 129, max= 375, per=25.30%, avg=283.09, stdev=51.46, samples=35 iops : min= 32, max= 93, avg=70.40, stdev=12.87, samples=35 write: IOPS=72, BW=289KiB/s (296kB/s)(5180KiB/17907msec); 0 zone resets slat (usec): min=34, max=4830, avg=190.30, stdev=374.02 clat (msec): min=30, max=205, avg=108.97, stdev=22.12 lat (msec): min=30, max=205, avg=109.16, stdev=22.12 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 81], 10.00th=[ 86], 20.00th=[ 91], | 30.00th=[ 96], 40.00th=[ 101], 50.00th=[ 106], 60.00th=[ 112], | 70.00th=[ 117], 80.00th=[ 126], 90.00th=[ 138], 95.00th=[ 150], | 99.00th=[ 182], 99.50th=[ 188], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 163, max= 414, per=24.79%, avg=288.86, stdev=56.24, samples=35 iops : min= 40, max= 103, avg=71.83, stdev=14.19, samples=35 lat (msec) : 20=0.04%, 50=0.04%, 100=43.55%, 250=56.37% cpu : usr=0.50%, sys=2.66%, ctx=4883, 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=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=1120KiB/s (1146kB/s), 278KiB/s-283KiB/s (285kB/s-289kB/s), io=19.6MiB (20.5MB), run=17767-17924msec WRITE: bw=1166KiB/s (1194kB/s), 289KiB/s-296KiB/s (296kB/s-303kB/s), io=20.4MiB (21.4MB), run=17767-17924msec 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=180549: Mon Sep 7 15:08:14 2026 read: IOPS=2, BW=105MiB/s (110MB/s)(40.0MiB/381msec) slat (nsec): min=38423k, max=38423k, avg=38422583.00, stdev= 0.00 clat (nsec): min=315362k, max=315362k, avg=315362324.00, stdev= 0.00 lat (nsec): min=353793k, max=353793k, avg=353793427.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=4.74%, 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=105MiB/s (110MB/s), 105MiB/s-105MiB/s (110MB/s-110MB/s), io=40.0MiB (41.9MB), run=381-381msec 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