== sanity test 398c: run fio to test AIO ================= 09:13:12 (1788354792) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.126094 s, 333 MB/s osc.lustre-OST0000-osc-ffff8cc06b3ce800.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=158012: Wed Sep 2 09:13:45 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29535msec); 0 zone resets slat (usec): min=44, max=1334, avg=232.24, stdev=102.87 clat (msec): min=46, max=299, avg=184.14, stdev=34.70 lat (msec): min=46, max=299, avg=184.38, stdev=34.70 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 130], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 194], | 70.00th=[ 203], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 234], | 99.00th=[ 249], 99.50th=[ 259], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 272, max= 690, per=24.87%, avg=344.45, stdev=55.29, samples=58 iops : min= 68, max= 172, avg=86.10, stdev=13.77, samples=58 lat (msec) : 50=0.62%, 100=3.12%, 250=95.43%, 500=0.82% cpu : usr=0.17%, sys=1.59%, ctx=2704, 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=158013: Wed Sep 2 09:13:45 2026 write: IOPS=86, BW=346KiB/s (355kB/s)(10.0MiB/29555msec); 0 zone resets slat (usec): min=49, max=828, avg=234.64, stdev=96.06 clat (msec): min=44, max=288, avg=184.26, stdev=34.15 lat (msec): min=44, max=288, avg=184.49, stdev=34.16 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 132], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 194], | 70.00th=[ 203], 80.00th=[ 211], 90.00th=[ 224], 95.00th=[ 234], | 99.00th=[ 249], 99.50th=[ 251], 99.90th=[ 259], 99.95th=[ 271], | 99.99th=[ 288] bw ( KiB/s): min= 280, max= 670, per=24.86%, avg=344.38, stdev=52.41, samples=58 iops : min= 70, max= 167, avg=86.09, stdev=13.05, samples=58 lat (msec) : 50=0.62%, 100=3.01%, 250=95.62%, 500=0.74% cpu : usr=0.15%, sys=1.66%, ctx=2737, 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=158014: Wed Sep 2 09:13:45 2026 write: IOPS=86, BW=346KiB/s (355kB/s)(10.0MiB/29555msec); 0 zone resets slat (usec): min=46, max=960, avg=227.46, stdev=100.84 clat (msec): min=20, max=266, avg=184.33, stdev=34.63 lat (msec): min=20, max=266, avg=184.56, stdev=34.63 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 128], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 194], | 70.00th=[ 203], 80.00th=[ 213], 90.00th=[ 226], 95.00th=[ 236], | 99.00th=[ 249], 99.50th=[ 255], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 268] bw ( KiB/s): min= 288, max= 645, per=24.84%, avg=344.09, stdev=50.07, samples=58 iops : min= 72, max= 161, avg=86.02, stdev=12.49, samples=58 lat (msec) : 50=0.08%, 100=3.63%, 250=95.31%, 500=0.98% cpu : usr=0.17%, sys=1.54%, ctx=2836, 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=158015: Wed Sep 2 09:13:45 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29523msec); 0 zone resets slat (usec): min=47, max=1802, avg=226.17, stdev=105.23 clat (msec): min=22, max=314, avg=184.17, stdev=34.66 lat (msec): min=22, max=314, avg=184.40, stdev=34.66 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 128], 10.00th=[ 150], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 194], | 70.00th=[ 203], 80.00th=[ 211], 90.00th=[ 224], 95.00th=[ 234], | 99.00th=[ 247], 99.50th=[ 255], 99.90th=[ 300], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 264, max= 715, per=24.91%, avg=345.02, stdev=58.76, samples=58 iops : min= 66, max= 178, avg=86.24, stdev=14.61, samples=58 lat (msec) : 50=0.39%, 100=3.32%, 250=95.62%, 500=0.66% cpu : usr=0.18%, sys=1.52%, ctx=2802, 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=1386KiB/s (1419kB/s), 346KiB/s-347KiB/s (355kB/s-355kB/s), io=40.0MiB (41.9MB), run=29523-29555msec 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=158029: Wed Sep 2 09:14:07 2026 read: IOPS=65, BW=263KiB/s (269kB/s)(5048KiB/19210msec) slat (usec): min=72, max=6393, avg=2538.17, stdev=824.17 clat (msec): min=5, max=227, avg=77.30, stdev=16.32 lat (msec): min=7, max=230, avg=79.84, stdev=16.41 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 70], 40.00th=[ 73], 50.00th=[ 77], 60.00th=[ 81], | 70.00th=[ 85], 80.00th=[ 89], 90.00th=[ 94], 95.00th=[ 102], | 99.00th=[ 113], 99.50th=[ 134], 99.90th=[ 226], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 176, max= 344, per=25.26%, avg=262.24, stdev=48.15, samples=38 iops : min= 44, max= 86, avg=65.53, stdev=12.03, samples=38 write: IOPS=67, BW=270KiB/s (277kB/s)(5192KiB/19210msec); 0 zone resets slat (usec): min=64, max=776, avg=196.83, stdev=88.52 clat (msec): min=29, max=288, avg=158.74, stdev=37.09 lat (msec): min=29, max=288, avg=158.94, stdev=37.09 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 102], 10.00th=[ 112], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 211], 95.00th=[ 226], | 99.00th=[ 247], 99.50th=[ 255], 99.90th=[ 266], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 216, max= 344, per=24.96%, avg=269.53, stdev=34.01, samples=38 iops : min= 54, max= 86, avg=67.34, stdev= 8.51, samples=38 lat (msec) : 10=0.08%, 20=0.23%, 50=1.09%, 100=47.62%, 250=50.55% lat (msec) : 500=0.43% cpu : usr=0.23%, sys=2.42%, ctx=4784, 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=158030: Wed Sep 2 09:14:07 2026 read: IOPS=64, BW=257KiB/s (264kB/s)(4976KiB/19327msec) slat (usec): min=1096, max=6146, avg=2534.67, stdev=797.00 clat (msec): min=2, max=153, avg=77.03, stdev=13.93 lat (msec): min=5, max=156, avg=79.56, stdev=14.00 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 58], 10.00th=[ 63], 20.00th=[ 67], | 30.00th=[ 71], 40.00th=[ 74], 50.00th=[ 78], 60.00th=[ 81], | 70.00th=[ 84], 80.00th=[ 87], 90.00th=[ 93], 95.00th=[ 100], | 99.00th=[ 112], 99.50th=[ 117], 99.90th=[ 128], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 160, max= 360, per=24.71%, avg=256.45, stdev=47.03, samples=38 iops : min= 40, max= 90, avg=64.08, stdev=11.78, samples=38 write: IOPS=68, BW=272KiB/s (279kB/s)(5264KiB/19327msec); 0 zone resets slat (usec): min=60, max=2569, avg=197.46, stdev=114.67 clat (msec): min=46, max=264, avg=159.04, stdev=37.16 lat (msec): min=47, max=264, avg=159.24, stdev=37.16 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 100], 10.00th=[ 113], 20.00th=[ 127], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 245], 99.50th=[ 259], 99.90th=[ 264], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 192, max= 336, per=25.11%, avg=271.21, stdev=36.13, samples=38 iops : min= 48, max= 84, avg=67.76, stdev= 9.04, samples=38 lat (msec) : 4=0.04%, 10=0.08%, 20=0.31%, 50=0.43%, 100=48.09% lat (msec) : 250=50.59%, 500=0.47% cpu : usr=0.17%, sys=2.47%, ctx=4755, 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=158031: Wed Sep 2 09:14:07 2026 read: IOPS=64, BW=258KiB/s (264kB/s)(4984KiB/19318msec) slat (usec): min=1127, max=6323, avg=2545.74, stdev=778.17 clat (msec): min=4, max=130, avg=76.86, stdev=13.98 lat (msec): min=7, max=132, avg=79.41, stdev=14.03 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 58], 10.00th=[ 63], 20.00th=[ 67], | 30.00th=[ 70], 40.00th=[ 73], 50.00th=[ 78], 60.00th=[ 81], | 70.00th=[ 84], 80.00th=[ 89], 90.00th=[ 93], 95.00th=[ 97], | 99.00th=[ 110], 99.50th=[ 115], 99.90th=[ 129], 99.95th=[ 131], | 99.99th=[ 131] bw ( KiB/s): min= 152, max= 368, per=24.92%, avg=258.66, stdev=55.71, samples=38 iops : min= 38, max= 92, avg=64.63, stdev=13.95, samples=38 write: IOPS=68, BW=272KiB/s (279kB/s)(5256KiB/19318msec); 0 zone resets slat (usec): min=47, max=808, avg=198.97, stdev=94.17 clat (msec): min=42, max=266, avg=159.27, stdev=37.00 lat (msec): min=42, max=267, avg=159.47, stdev=37.00 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 99], 10.00th=[ 112], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 222], | 99.00th=[ 247], 99.50th=[ 253], 99.90th=[ 262], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 208, max= 352, per=25.01%, avg=270.13, stdev=33.43, samples=38 iops : min= 52, max= 88, avg=67.50, stdev= 8.37, samples=38 lat (msec) : 10=0.12%, 20=0.35%, 50=0.31%, 100=49.10%, 250=49.69% lat (msec) : 500=0.43% cpu : usr=0.20%, sys=2.44%, ctx=4790, 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=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=158032: Wed Sep 2 09:14:07 2026 read: IOPS=65, BW=264KiB/s (270kB/s)(5060KiB/19196msec) slat (usec): min=1182, max=6356, avg=2534.84, stdev=820.83 clat (msec): min=3, max=215, avg=76.92, stdev=14.83 lat (msec): min=5, max=218, avg=79.46, stdev=14.86 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 67], | 30.00th=[ 70], 40.00th=[ 73], 50.00th=[ 77], 60.00th=[ 80], | 70.00th=[ 84], 80.00th=[ 88], 90.00th=[ 94], 95.00th=[ 100], | 99.00th=[ 109], 99.50th=[ 122], 99.90th=[ 192], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 144, max= 368, per=25.42%, avg=263.84, stdev=51.54, samples=38 iops : min= 36, max= 92, avg=65.92, stdev=12.88, samples=38 write: IOPS=67, BW=270KiB/s (276kB/s)(5180KiB/19196msec); 0 zone resets slat (usec): min=59, max=1004, avg=194.90, stdev=90.83 clat (msec): min=44, max=304, avg=158.79, stdev=37.28 lat (msec): min=44, max=305, avg=158.99, stdev=37.28 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 102], 10.00th=[ 113], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 247], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 192, max= 352, per=24.86%, avg=268.47, stdev=38.77, samples=38 iops : min= 48, max= 88, avg=67.08, stdev= 9.71, samples=38 lat (msec) : 4=0.04%, 10=0.08%, 20=0.23%, 50=0.62%, 100=48.36% lat (msec) : 250=50.31%, 500=0.35% cpu : usr=0.24%, sys=2.37%, ctx=4855, 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=1038KiB/s (1063kB/s), 257KiB/s-264KiB/s (264kB/s-270kB/s), io=19.6MiB (20.5MB), run=19196-19327msec WRITE: bw=1081KiB/s (1107kB/s), 270KiB/s-272KiB/s (276kB/s-279kB/s), io=20.4MiB (21.4MB), run=19196-19327msec 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=158038: Wed Sep 2 09:14:10 2026 read: IOPS=7, BW=303MiB/s (318MB/s)(40.0MiB/132msec) slat (nsec): min=11854k, max=11854k, avg=11854156.00, stdev= 0.00 clat (nsec): min=115435k, max=115435k, avg=115434801.00, stdev= 0.00 lat (nsec): min=127306k, max=127306k, avg=127305974.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 116], 50.00th=[ 116], 60.00th=[ 116], | 70.00th=[ 116], 80.00th=[ 116], 90.00th=[ 116], 95.00th=[ 116], | 99.00th=[ 116], 99.50th=[ 116], 99.90th=[ 116], 99.95th=[ 116], | 99.99th=[ 116] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=8.40%, ctx=20, 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=303MiB/s (318MB/s), 303MiB/s-303MiB/s (318MB/s-318MB/s), io=40.0MiB (41.9MB), run=132-132msec 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