== sanity test 398c: run fio to test AIO ================= 18:48:38 (1776206918) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.658035 s, 63.7 MB/s osc.lustre-OST0000-osc-ffff8ec98542d000.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=147786: Tue Apr 14 18:49:17 2026 write: IOPS=89, BW=358KiB/s (366kB/s)(10.0MiB/28634msec); 0 zone resets slat (usec): min=25, max=13412, avg=294.04, stdev=988.56 clat (msec): min=22, max=287, avg=178.18, stdev=36.80 lat (msec): min=23, max=287, avg=178.48, stdev=36.81 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 127], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 207], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 250, max= 484, per=24.87%, avg=355.70, stdev=61.99, samples=56 iops : min= 62, max= 121, avg=88.50, stdev=15.56, samples=56 lat (msec) : 50=0.70%, 100=0.04%, 250=95.35%, 500=3.91% cpu : usr=0.20%, sys=1.14%, ctx=950, majf=0, minf=8 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=147787: Tue Apr 14 18:49:17 2026 write: IOPS=89, BW=358KiB/s (367kB/s)(10.0MiB/28607msec); 0 zone resets slat (usec): min=25, max=16892, avg=340.97, stdev=1130.01 clat (msec): min=15, max=290, avg=177.85, stdev=35.82 lat (msec): min=15, max=290, avg=178.20, stdev=35.78 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 129], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 239], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 255, max= 454, per=24.97%, avg=357.02, stdev=49.52, samples=56 iops : min= 63, max= 113, avg=88.80, stdev=12.49, samples=56 lat (msec) : 20=0.08%, 50=0.12%, 100=0.66%, 250=96.09%, 500=3.05% cpu : usr=0.24%, sys=1.32%, ctx=1270, majf=0, minf=8 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=147788: Tue Apr 14 18:49:17 2026 write: IOPS=89, BW=358KiB/s (366kB/s)(10.0MiB/28611msec); 0 zone resets slat (usec): min=26, max=29333, avg=395.48, stdev=1403.70 clat (msec): min=15, max=299, avg=178.27, stdev=37.72 lat (msec): min=18, max=299, avg=178.67, stdev=37.73 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 122], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 209], 90.00th=[ 228], 95.00th=[ 243], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 255, max= 480, per=24.95%, avg=356.71, stdev=52.49, samples=56 iops : min= 63, max= 120, avg=88.77, stdev=13.19, samples=56 lat (msec) : 20=0.04%, 50=0.23%, 100=0.98%, 250=94.84%, 500=3.91% cpu : usr=0.28%, sys=1.40%, ctx=1417, 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=147789: Tue Apr 14 18:49:17 2026 write: IOPS=89, BW=359KiB/s (368kB/s)(10.0MiB/28521msec); 0 zone resets slat (usec): min=20, max=21352, avg=305.04, stdev=1061.40 clat (msec): min=28, max=288, avg=177.58, stdev=36.66 lat (msec): min=28, max=290, avg=177.89, stdev=36.67 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 205], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 253, max= 460, per=25.01%, avg=357.70, stdev=48.17, samples=56 iops : min= 63, max= 115, avg=89.00, stdev=12.08, samples=56 lat (msec) : 50=0.12%, 100=0.86%, 250=95.39%, 500=3.63% cpu : usr=0.21%, sys=1.17%, ctx=1311, 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 Run status group 0 (all jobs): WRITE: bw=1430KiB/s (1465kB/s), 358KiB/s-359KiB/s (366kB/s-368kB/s), io=40.0MiB (41.9MB), run=28521-28634msec 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=147804: Tue Apr 14 18:49:54 2026 read: IOPS=47, BW=189KiB/s (193kB/s)(5048KiB/26734msec) slat (usec): min=2202, max=57960, avg=12312.46, stdev=7099.09 clat (msec): min=10, max=288, avg=157.81, stdev=41.06 lat (msec): min=24, max=314, avg=170.13, stdev=42.49 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 100], 10.00th=[ 110], 20.00th=[ 125], | 30.00th=[ 134], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 264], 99.50th=[ 275], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 94, max= 293, per=24.99%, avg=187.43, stdev=37.90, samples=53 iops : min= 23, max= 73, avg=46.40, stdev= 9.54, samples=53 write: IOPS=48, BW=194KiB/s (199kB/s)(5192KiB/26734msec); 0 zone resets slat (usec): min=27, max=20160, avg=369.79, stdev=1174.62 clat (msec): min=19, max=315, avg=161.08, stdev=37.40 lat (msec): min=19, max=316, avg=161.45, stdev=37.43 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 107], 10.00th=[ 116], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 228], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 300], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 78, max= 280, per=24.69%, avg=192.83, stdev=44.57, samples=53 iops : min= 19, max= 70, avg=47.75, stdev=11.24, samples=53 lat (msec) : 20=0.16%, 50=0.23%, 100=3.83%, 250=93.55%, 500=2.23% cpu : usr=0.40%, sys=2.57%, ctx=2696, 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=147805: Tue Apr 14 18:49:54 2026 read: IOPS=46, BW=186KiB/s (191kB/s)(4976KiB/26708msec) slat (usec): min=2752, max=50164, avg=12230.36, stdev=6875.97 clat (msec): min=9, max=300, avg=158.18, stdev=39.26 lat (msec): min=15, max=308, avg=170.41, stdev=40.53 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 101], 10.00th=[ 111], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 211], 95.00th=[ 226], | 99.00th=[ 255], 99.50th=[ 262], 99.90th=[ 275], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 94, max= 301, per=24.60%, avg=184.51, stdev=40.56, samples=53 iops : min= 23, max= 75, avg=45.68, stdev=10.19, samples=53 write: IOPS=49, BW=197KiB/s (202kB/s)(5264KiB/26708msec); 0 zone resets slat (usec): min=28, max=9810, avg=390.84, stdev=1068.62 clat (msec): min=73, max=316, avg=161.17, stdev=36.67 lat (msec): min=74, max=316, avg=161.58, stdev=36.68 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 109], 10.00th=[ 120], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 211], 95.00th=[ 226], | 99.00th=[ 264], 99.50th=[ 279], 99.90th=[ 305], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 111, max= 296, per=25.16%, avg=196.47, stdev=45.13, samples=53 iops : min= 27, max= 74, avg=48.66, stdev=11.39, samples=53 lat (msec) : 10=0.04%, 20=0.08%, 100=3.40%, 250=94.96%, 500=1.52% cpu : usr=0.42%, sys=2.48%, ctx=2641, 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=147806: Tue Apr 14 18:49:54 2026 read: IOPS=46, BW=188KiB/s (192kB/s)(4984KiB/26580msec) slat (usec): min=70, max=48791, avg=12141.44, stdev=6986.78 clat (msec): min=24, max=292, avg=156.68, stdev=38.90 lat (msec): min=24, max=312, avg=168.83, stdev=40.76 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 104], 10.00th=[ 111], 20.00th=[ 123], | 30.00th=[ 133], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 176], 80.00th=[ 192], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 268], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 95, max= 262, per=24.97%, avg=187.29, stdev=38.10, samples=52 iops : min= 23, max= 65, avg=46.38, stdev= 9.58, samples=52 write: IOPS=49, BW=198KiB/s (202kB/s)(5256KiB/26580msec); 0 zone resets slat (usec): min=24, max=13089, avg=381.50, stdev=1084.52 clat (msec): min=21, max=327, avg=162.63, stdev=37.65 lat (msec): min=21, max=327, avg=163.01, stdev=37.62 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 112], 10.00th=[ 120], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 228], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 317], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 79, max= 309, per=25.16%, avg=196.54, stdev=49.80, samples=52 iops : min= 19, max= 77, avg=48.67, stdev=12.57, samples=52 lat (msec) : 50=0.20%, 100=2.73%, 250=94.96%, 500=2.11% cpu : usr=0.38%, sys=2.51%, ctx=2825, 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=147807: Tue Apr 14 18:49:54 2026 read: IOPS=47, BW=190KiB/s (194kB/s)(5060KiB/26680msec) slat (usec): min=2538, max=49352, avg=12224.85, stdev=6845.80 clat (msec): min=31, max=288, avg=157.59, stdev=37.71 lat (msec): min=42, max=313, avg=169.82, stdev=39.20 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 104], 10.00th=[ 113], 20.00th=[ 126], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 190], 90.00th=[ 207], 95.00th=[ 222], | 99.00th=[ 259], 99.50th=[ 268], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 95, max= 269, per=25.17%, avg=188.75, stdev=39.87, samples=52 iops : min= 23, max= 67, avg=46.75, stdev=10.05, samples=52 write: IOPS=48, BW=194KiB/s (199kB/s)(5180KiB/26680msec); 0 zone resets slat (usec): min=27, max=11768, avg=408.76, stdev=1065.09 clat (msec): min=15, max=304, avg=161.26, stdev=37.24 lat (msec): min=15, max=304, avg=161.67, stdev=37.24 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 108], 10.00th=[ 118], 20.00th=[ 131], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 228], | 99.00th=[ 266], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 118, max= 277, per=24.66%, avg=192.56, stdev=39.36, samples=52 iops : min= 29, max= 69, avg=47.67, stdev= 9.89, samples=52 lat (msec) : 20=0.04%, 50=0.08%, 100=3.28%, 250=94.65%, 500=1.95% cpu : usr=0.38%, sys=2.71%, ctx=2839, 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=751KiB/s (769kB/s), 186KiB/s-190KiB/s (191kB/s-194kB/s), io=19.6MiB (20.5MB), run=26580-26734msec WRITE: bw=781KiB/s (800kB/s), 194KiB/s-198KiB/s (199kB/s-202kB/s), io=20.4MiB (21.4MB), run=26580-26734msec 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=147815: Tue Apr 14 18:50:05 2026 read: IOPS=1, BW=72.1MiB/s (75.6MB/s)(40.0MiB/555msec) slat (nsec): min=35380k, max=35380k, avg=35380064.00, stdev= 0.00 clat (nsec): min=493252k, max=493252k, avg=493252403.00, stdev= 0.00 lat (nsec): min=528637k, max=528637k, avg=528637472.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.89%, ctx=3, 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=72.1MiB/s (75.6MB/s), 72.1MiB/s-72.1MiB/s (75.6MB/s-75.6MB/s), io=40.0MiB (41.9MB), run=555-555msec debug=super ioctl neterror warning dlmtrace error emerg ha rpctrace vfstrace config console lfsck