== sanity test 398c: run fio to test AIO ================= 12:03:39 (1788883419) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.438425 s, 95.7 MB/s osc.lustre-OST0000-osc-ffff8e42c6cf4800.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=151088: Tue Sep 8 12:04:29 2026 write: IOPS=59, BW=237KiB/s (243kB/s)(10.0MiB/43204msec); 0 zone resets slat (usec): min=21, max=4887, avg=147.49, stdev=221.39 clat (msec): min=148, max=771, avg=269.17, stdev=87.07 lat (msec): min=148, max=772, avg=269.31, stdev=87.08 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 184], 10.00th=[ 194], 20.00th=[ 213], | 30.00th=[ 226], 40.00th=[ 236], 50.00th=[ 249], 60.00th=[ 264], | 70.00th=[ 284], 80.00th=[ 309], 90.00th=[ 347], 95.00th=[ 405], | 99.00th=[ 709], 99.50th=[ 760], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 8, max= 344, per=24.89%, avg=235.94, stdev=61.73, samples=86 iops : min= 2, max= 86, avg=58.81, stdev=15.53, samples=86 lat (msec) : 250=51.25%, 500=45.66%, 750=2.46%, 1000=0.62% cpu : usr=0.13%, sys=0.67%, ctx=2679, 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=151089: Tue Sep 8 12:04:29 2026 write: IOPS=59, BW=237KiB/s (243kB/s)(10.0MiB/43147msec); 0 zone resets slat (usec): min=21, max=4795, avg=151.96, stdev=207.23 clat (msec): min=135, max=817, avg=268.74, stdev=86.06 lat (msec): min=135, max=817, avg=268.89, stdev=86.07 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 184], 10.00th=[ 194], 20.00th=[ 211], | 30.00th=[ 226], 40.00th=[ 236], 50.00th=[ 249], 60.00th=[ 266], | 70.00th=[ 288], 80.00th=[ 309], 90.00th=[ 351], 95.00th=[ 426], | 99.00th=[ 659], 99.50th=[ 768], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 16, max= 352, per=25.08%, avg=237.78, stdev=58.65, samples=85 iops : min= 4, max= 88, avg=59.28, stdev=14.75, samples=85 lat (msec) : 250=51.52%, 500=45.43%, 750=2.46%, 1000=0.59% cpu : usr=0.15%, sys=0.69%, ctx=2815, 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=151090: Tue Sep 8 12:04:29 2026 write: IOPS=59, BW=237KiB/s (243kB/s)(10.0MiB/43173msec); 0 zone resets slat (usec): min=24, max=4944, avg=161.39, stdev=226.51 clat (msec): min=48, max=835, avg=269.41, stdev=87.60 lat (msec): min=48, max=835, avg=269.57, stdev=87.60 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 184], 10.00th=[ 194], 20.00th=[ 213], | 30.00th=[ 226], 40.00th=[ 236], 50.00th=[ 249], 60.00th=[ 266], | 70.00th=[ 284], 80.00th=[ 309], 90.00th=[ 351], 95.00th=[ 426], | 99.00th=[ 676], 99.50th=[ 751], 99.90th=[ 776], 99.95th=[ 793], | 99.99th=[ 835] bw ( KiB/s): min= 80, max= 336, per=25.12%, avg=238.14, stdev=57.72, samples=85 iops : min= 20, max= 84, avg=59.38, stdev=14.52, samples=85 lat (msec) : 50=0.04%, 250=50.23%, 500=46.41%, 750=2.85%, 1000=0.47% cpu : usr=0.12%, sys=0.74%, ctx=3075, 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=151091: Tue Sep 8 12:04:29 2026 write: IOPS=59, BW=237KiB/s (243kB/s)(10.0MiB/43206msec); 0 zone resets slat (usec): min=22, max=6807, avg=162.48, stdev=278.39 clat (msec): min=109, max=846, avg=269.02, stdev=86.66 lat (msec): min=109, max=847, avg=269.18, stdev=86.68 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 184], 10.00th=[ 194], 20.00th=[ 213], | 30.00th=[ 226], 40.00th=[ 239], 50.00th=[ 249], 60.00th=[ 266], | 70.00th=[ 284], 80.00th=[ 309], 90.00th=[ 351], 95.00th=[ 414], | 99.00th=[ 684], 99.50th=[ 760], 99.90th=[ 827], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 64, max= 352, per=24.90%, avg=236.08, stdev=57.87, samples=86 iops : min= 16, max= 88, avg=58.85, stdev=14.55, samples=86 lat (msec) : 250=50.55%, 500=46.64%, 750=2.27%, 1000=0.55% cpu : usr=0.13%, sys=0.74%, ctx=2919, 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=948KiB/s (971kB/s), 237KiB/s-237KiB/s (243kB/s-243kB/s), io=40.0MiB (41.9MB), run=43147-43206msec 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=151107: Tue Sep 8 12:04:57 2026 read: IOPS=49, BW=199KiB/s (204kB/s)(5048KiB/25347msec) slat (usec): min=1093, max=9887, avg=3192.16, stdev=1380.14 clat (msec): min=3, max=187, avg=100.94, stdev=24.40 lat (msec): min=6, max=191, avg=104.13, stdev=24.73 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 66], 10.00th=[ 73], 20.00th=[ 82], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 99], 60.00th=[ 105], | 70.00th=[ 112], 80.00th=[ 120], 90.00th=[ 132], 95.00th=[ 146], | 99.00th=[ 169], 99.50th=[ 174], 99.90th=[ 186], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 136, max= 296, per=25.13%, avg=198.52, stdev=46.46, samples=50 iops : min= 34, max= 74, avg=49.54, stdev=11.65, samples=50 write: IOPS=51, BW=205KiB/s (210kB/s)(5192KiB/25347msec); 0 zone resets slat (usec): min=35, max=3290, avg=137.49, stdev=158.39 clat (msec): min=77, max=457, avg=210.02, stdev=49.79 lat (msec): min=77, max=458, avg=210.16, stdev=49.80 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 247], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 372], 99.50th=[ 401], 99.90th=[ 443], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 120, max= 278, per=24.79%, avg=204.00, stdev=31.67, samples=50 iops : min= 30, max= 69, avg=50.92, stdev= 7.90, samples=50 lat (msec) : 4=0.04%, 20=0.04%, 50=0.23%, 100=26.41%, 250=64.30% lat (msec) : 500=8.98% cpu : usr=0.21%, sys=1.59%, ctx=4937, majf=0, minf=18 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=151108: Tue Sep 8 12:04:57 2026 read: IOPS=49, BW=196KiB/s (201kB/s)(4976KiB/25371msec) slat (usec): min=37, max=11234, avg=3208.65, stdev=1375.31 clat (msec): min=4, max=193, avg=100.27, stdev=23.70 lat (msec): min=6, max=196, avg=103.48, stdev=24.00 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 69], 10.00th=[ 74], 20.00th=[ 82], | 30.00th=[ 87], 40.00th=[ 92], 50.00th=[ 97], 60.00th=[ 104], | 70.00th=[ 111], 80.00th=[ 120], 90.00th=[ 132], 95.00th=[ 146], | 99.00th=[ 167], 99.50th=[ 169], 99.90th=[ 190], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 80, max= 320, per=24.66%, avg=194.82, stdev=51.93, samples=50 iops : min= 20, max= 80, avg=48.62, stdev=13.02, samples=50 write: IOPS=51, BW=207KiB/s (212kB/s)(5264KiB/25371msec); 0 zone resets slat (usec): min=33, max=4301, avg=139.93, stdev=180.56 clat (msec): min=47, max=433, avg=210.21, stdev=52.85 lat (msec): min=47, max=433, avg=210.35, stdev=52.85 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 134], 10.00th=[ 148], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 249], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 380], 99.50th=[ 405], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 128, max= 270, per=25.07%, avg=206.36, stdev=35.19, samples=50 iops : min= 32, max= 67, avg=51.50, stdev= 8.77, samples=50 lat (msec) : 10=0.08%, 20=0.04%, 50=0.12%, 100=27.46%, 250=62.66% lat (msec) : 500=9.65% cpu : usr=0.21%, sys=1.59%, ctx=4822, majf=0, minf=15 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=151109: Tue Sep 8 12:04:57 2026 read: IOPS=49, BW=196KiB/s (201kB/s)(4984KiB/25371msec) slat (usec): min=1092, max=13224, avg=3238.53, stdev=1517.06 clat (msec): min=12, max=181, avg=100.24, stdev=24.39 lat (msec): min=14, max=184, avg=103.48, stdev=24.66 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 66], 10.00th=[ 72], 20.00th=[ 81], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 99], 60.00th=[ 105], | 70.00th=[ 112], 80.00th=[ 121], 90.00th=[ 132], 95.00th=[ 144], | 99.00th=[ 167], 99.50th=[ 169], 99.90th=[ 176], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 88, max= 312, per=24.87%, avg=196.44, stdev=49.57, samples=50 iops : min= 22, max= 78, avg=49.02, stdev=12.44, samples=50 write: IOPS=51, BW=207KiB/s (212kB/s)(5256KiB/25371msec); 0 zone resets slat (usec): min=26, max=5045, avg=138.17, stdev=160.72 clat (msec): min=59, max=425, avg=209.87, stdev=51.13 lat (msec): min=59, max=425, avg=210.01, stdev=51.13 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 133], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 247], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 418], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 136, max= 304, per=24.94%, avg=205.24, stdev=34.64, samples=50 iops : min= 34, max= 76, avg=51.22, stdev= 8.64, samples=50 lat (msec) : 20=0.20%, 50=0.39%, 100=25.59%, 250=64.30%, 500=9.53% cpu : usr=0.22%, sys=1.59%, ctx=4994, 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=151110: Tue Sep 8 12:04:57 2026 read: IOPS=50, BW=201KiB/s (206kB/s)(5060KiB/25189msec) slat (usec): min=1106, max=10509, avg=3260.91, stdev=1431.60 clat (msec): min=7, max=185, avg=99.74, stdev=24.69 lat (msec): min=10, max=190, avg=103.01, stdev=25.05 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 65], 10.00th=[ 72], 20.00th=[ 81], | 30.00th=[ 88], 40.00th=[ 92], 50.00th=[ 97], 60.00th=[ 104], | 70.00th=[ 111], 80.00th=[ 118], 90.00th=[ 133], 95.00th=[ 144], | 99.00th=[ 163], 99.50th=[ 169], 99.90th=[ 184], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 72, max= 328, per=25.41%, avg=200.70, stdev=49.40, samples=50 iops : min= 18, max= 82, avg=50.08, stdev=12.39, samples=50 write: IOPS=51, BW=206KiB/s (211kB/s)(5180KiB/25189msec); 0 zone resets slat (usec): min=35, max=2568, avg=133.16, stdev=103.09 clat (msec): min=57, max=460, avg=209.61, stdev=49.89 lat (msec): min=57, max=460, avg=209.75, stdev=49.89 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 134], 10.00th=[ 148], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 247], 90.00th=[ 271], 95.00th=[ 300], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 401], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 128, max= 296, per=24.84%, avg=204.42, stdev=34.29, samples=50 iops : min= 32, max= 74, avg=51.02, stdev= 8.56, samples=50 lat (msec) : 10=0.08%, 20=0.27%, 50=0.23%, 100=26.88%, 250=63.44% lat (msec) : 500=9.10% cpu : usr=0.19%, sys=1.61%, ctx=4909, majf=0, minf=17 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=791KiB/s (810kB/s), 196KiB/s-201KiB/s (201kB/s-206kB/s), io=19.6MiB (20.5MB), run=25189-25371msec WRITE: bw=823KiB/s (843kB/s), 205KiB/s-207KiB/s (210kB/s-212kB/s), io=20.4MiB (21.4MB), run=25189-25371msec 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=151117: Tue Sep 8 12:05:01 2026 read: IOPS=7, BW=294MiB/s (308MB/s)(40.0MiB/136msec) slat (nsec): min=11603k, max=11603k, avg=11603301.00, stdev= 0.00 clat (nsec): min=118801k, max=118801k, avg=118800853.00, stdev= 0.00 lat (nsec): min=130425k, max=130425k, avg=130425111.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 120], 60.00th=[ 120], | 70.00th=[ 120], 80.00th=[ 120], 90.00th=[ 120], 95.00th=[ 120], | 99.00th=[ 120], 99.50th=[ 120], 99.90th=[ 120], 99.95th=[ 120], | 99.99th=[ 120] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=8.15%, ctx=28, 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=294MiB/s (308MB/s), 294MiB/s-294MiB/s (308MB/s-308MB/s), io=40.0MiB (41.9MB), run=136-136msec 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