== sanity test 398c: run fio to test AIO ================= 23:54:05 (1788753245) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.160373 s, 262 MB/s osc.lustre-OST0000-osc-ffff9c27734df800.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=181717: Sun Sep 6 23:54:21 2026 write: IOPS=212, BW=851KiB/s (872kB/s)(10.0MiB/12030msec); 0 zone resets slat (usec): min=29, max=2755, avg=144.85, stdev=193.25 clat (msec): min=14, max=119, avg=74.71, stdev=13.10 lat (msec): min=14, max=119, avg=74.85, stdev=13.10 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 60], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 82], 80.00th=[ 86], 90.00th=[ 92], 95.00th=[ 96], | 99.00th=[ 113], 99.50th=[ 113], 99.90th=[ 120], 99.95th=[ 121], | 99.99th=[ 121] bw ( KiB/s): min= 696, max= 984, per=25.03%, avg=850.91, stdev=72.95, samples=23 iops : min= 174, max= 246, avg=212.61, stdev=18.14, samples=23 lat (msec) : 20=0.12%, 50=2.46%, 100=94.18%, 250=3.24% cpu : usr=0.29%, sys=2.22%, ctx=2958, 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=181718: Sun Sep 6 23:54:21 2026 write: IOPS=212, BW=850KiB/s (870kB/s)(10.0MiB/12046msec); 0 zone resets slat (usec): min=31, max=2868, avg=137.03, stdev=176.10 clat (msec): min=41, max=120, avg=74.75, stdev=12.88 lat (msec): min=41, max=120, avg=74.88, stdev=12.88 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 59], 20.00th=[ 64], | 30.00th=[ 69], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 81], 80.00th=[ 85], 90.00th=[ 91], 95.00th=[ 97], | 99.00th=[ 114], 99.50th=[ 116], 99.90th=[ 121], 99.95th=[ 121], | 99.99th=[ 121] bw ( KiB/s): min= 696, max= 1021, per=24.93%, avg=847.48, stdev=83.76, samples=23 iops : min= 174, max= 255, avg=211.78, stdev=20.90, samples=23 lat (msec) : 50=2.03%, 100=94.14%, 250=3.83% cpu : usr=0.37%, sys=1.97%, ctx=2890, 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=181719: Sun Sep 6 23:54:21 2026 write: IOPS=212, BW=850KiB/s (870kB/s)(10.0MiB/12046msec); 0 zone resets slat (usec): min=21, max=8917, avg=122.91, stdev=256.78 clat (msec): min=13, max=122, avg=74.73, stdev=13.06 lat (msec): min=13, max=122, avg=74.86, stdev=13.06 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 57], 10.00th=[ 60], 20.00th=[ 66], | 30.00th=[ 69], 40.00th=[ 71], 50.00th=[ 73], 60.00th=[ 77], | 70.00th=[ 81], 80.00th=[ 86], 90.00th=[ 92], 95.00th=[ 97], | 99.00th=[ 113], 99.50th=[ 115], 99.90th=[ 121], 99.95th=[ 122], | 99.99th=[ 123] bw ( KiB/s): min= 693, max= 1000, per=24.88%, avg=846.00, stdev=77.71, samples=23 iops : min= 173, max= 250, avg=211.39, stdev=19.44, samples=23 lat (msec) : 20=0.04%, 50=2.34%, 100=94.30%, 250=3.32% cpu : usr=0.30%, sys=1.80%, ctx=2078, 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=181720: Sun Sep 6 23:54:21 2026 write: IOPS=213, BW=855KiB/s (875kB/s)(10.0MiB/11981msec); 0 zone resets slat (usec): min=24, max=5802, avg=150.30, stdev=227.28 clat (msec): min=7, max=140, avg=74.64, stdev=13.49 lat (msec): min=7, max=140, avg=74.79, stdev=13.49 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 60], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 82], 80.00th=[ 86], 90.00th=[ 91], 95.00th=[ 96], | 99.00th=[ 112], 99.50th=[ 114], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 752, max= 1025, per=25.12%, avg=854.13, stdev=74.84, samples=23 iops : min= 188, max= 256, avg=213.43, stdev=18.64, samples=23 lat (msec) : 10=0.08%, 20=0.08%, 50=2.27%, 100=94.30%, 250=3.28% cpu : usr=0.32%, sys=2.14%, ctx=3070, 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=3400KiB/s (3482kB/s), 850KiB/s-855KiB/s (870kB/s-875kB/s), io=40.0MiB (41.9MB), run=11981-12046msec 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=181732: Sun Sep 6 23:54:36 2026 read: IOPS=110, BW=443KiB/s (453kB/s)(5048KiB/11400msec) slat (usec): min=25, max=12713, avg=4642.50, stdev=1681.78 clat (msec): min=9, max=126, avg=68.14, stdev=14.15 lat (msec): min=9, max=132, avg=72.78, stdev=14.62 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 48], 10.00th=[ 53], 20.00th=[ 58], | 30.00th=[ 61], 40.00th=[ 64], 50.00th=[ 68], 60.00th=[ 71], | 70.00th=[ 74], 80.00th=[ 80], 90.00th=[ 86], 95.00th=[ 92], | 99.00th=[ 108], 99.50th=[ 117], 99.90th=[ 125], 99.95th=[ 127], | 99.99th=[ 127] bw ( KiB/s): min= 344, max= 542, per=25.57%, avg=441.27, stdev=48.49, samples=22 iops : min= 86, max= 135, avg=110.18, stdev=12.12, samples=22 write: IOPS=113, BW=455KiB/s (466kB/s)(5192KiB/11400msec); 0 zone resets slat (usec): min=35, max=3601, avg=161.88, stdev=218.40 clat (msec): min=26, max=119, avg=69.38, stdev=11.92 lat (msec): min=26, max=119, avg=69.54, stdev=11.92 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 56], 20.00th=[ 61], | 30.00th=[ 64], 40.00th=[ 66], 50.00th=[ 69], 60.00th=[ 71], | 70.00th=[ 75], 80.00th=[ 80], 90.00th=[ 84], 95.00th=[ 91], | 99.00th=[ 105], 99.50th=[ 110], 99.90th=[ 113], 99.95th=[ 120], | 99.99th=[ 120] bw ( KiB/s): min= 328, max= 608, per=25.35%, avg=455.50, stdev=70.70, samples=22 iops : min= 82, max= 152, avg=113.77, stdev=17.70, samples=22 lat (msec) : 10=0.12%, 20=0.16%, 50=4.73%, 100=93.36%, 250=1.64% cpu : usr=0.39%, sys=3.62%, ctx=4802, 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=181733: Sun Sep 6 23:54:36 2026 read: IOPS=107, BW=430KiB/s (440kB/s)(4976KiB/11582msec) slat (usec): min=1618, max=72410, avg=4710.04, stdev=2562.86 clat (msec): min=13, max=131, avg=68.38, stdev=13.87 lat (msec): min=15, max=133, avg=73.09, stdev=14.32 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 50], 10.00th=[ 53], 20.00th=[ 57], | 30.00th=[ 62], 40.00th=[ 64], 50.00th=[ 67], 60.00th=[ 70], | 70.00th=[ 74], 80.00th=[ 79], 90.00th=[ 86], 95.00th=[ 93], | 99.00th=[ 116], 99.50th=[ 120], 99.90th=[ 127], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 336, max= 536, per=24.89%, avg=429.55, stdev=59.62, samples=22 iops : min= 84, max= 134, avg=107.27, stdev=14.93, samples=22 write: IOPS=113, BW=454KiB/s (465kB/s)(5264KiB/11582msec); 0 zone resets slat (usec): min=34, max=3668, avg=160.44, stdev=231.06 clat (msec): min=20, max=132, avg=70.87, stdev=12.36 lat (msec): min=20, max=132, avg=71.03, stdev=12.37 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 53], 10.00th=[ 57], 20.00th=[ 62], | 30.00th=[ 65], 40.00th=[ 67], 50.00th=[ 70], 60.00th=[ 73], | 70.00th=[ 77], 80.00th=[ 81], 90.00th=[ 87], 95.00th=[ 92], | 99.00th=[ 108], 99.50th=[ 125], 99.90th=[ 128], 99.95th=[ 133], | 99.99th=[ 133] bw ( KiB/s): min= 304, max= 592, per=25.34%, avg=455.27, stdev=71.54, samples=22 iops : min= 76, max= 148, avg=113.68, stdev=17.92, samples=22 lat (msec) : 20=0.04%, 50=4.18%, 100=93.75%, 250=2.03% cpu : usr=0.40%, sys=3.58%, ctx=4757, 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=181734: Sun Sep 6 23:54:36 2026 read: IOPS=107, BW=432KiB/s (442kB/s)(4984KiB/11547msec) slat (usec): min=1530, max=15173, avg=4681.69, stdev=1718.17 clat (msec): min=35, max=150, avg=68.88, stdev=13.92 lat (msec): min=39, max=153, avg=73.57, stdev=14.41 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 50], 10.00th=[ 53], 20.00th=[ 58], | 30.00th=[ 62], 40.00th=[ 65], 50.00th=[ 68], 60.00th=[ 71], | 70.00th=[ 75], 80.00th=[ 80], 90.00th=[ 87], 95.00th=[ 92], | 99.00th=[ 112], 99.50th=[ 125], 99.90th=[ 148], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 319, max= 560, per=25.14%, avg=433.95, stdev=61.63, samples=22 iops : min= 79, max= 140, avg=108.36, stdev=15.44, samples=22 write: IOPS=113, BW=455KiB/s (466kB/s)(5256KiB/11547msec); 0 zone resets slat (usec): min=34, max=1787, avg=149.14, stdev=157.72 clat (msec): min=43, max=138, avg=69.93, stdev=11.66 lat (msec): min=43, max=138, avg=70.08, stdev=11.67 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 54], 10.00th=[ 57], 20.00th=[ 61], | 30.00th=[ 64], 40.00th=[ 66], 50.00th=[ 69], 60.00th=[ 72], | 70.00th=[ 75], 80.00th=[ 80], 90.00th=[ 86], 95.00th=[ 90], | 99.00th=[ 104], 99.50th=[ 113], 99.90th=[ 124], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 312, max= 608, per=25.21%, avg=453.00, stdev=69.02, samples=22 iops : min= 78, max= 152, avg=113.14, stdev=17.23, samples=22 lat (msec) : 50=4.41%, 100=93.98%, 250=1.60% cpu : usr=0.54%, sys=3.41%, ctx=4773, 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=181735: Sun Sep 6 23:54:36 2026 read: IOPS=108, BW=435KiB/s (446kB/s)(5060KiB/11624msec) slat (usec): min=72, max=98536, avg=4884.37, stdev=4352.14 clat (msec): min=5, max=318, avg=68.81, stdev=22.85 lat (msec): min=9, max=323, avg=73.70, stdev=23.89 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 48], 10.00th=[ 52], 20.00th=[ 56], | 30.00th=[ 61], 40.00th=[ 64], 50.00th=[ 67], 60.00th=[ 70], | 70.00th=[ 74], 80.00th=[ 80], 90.00th=[ 86], 95.00th=[ 92], | 99.00th=[ 118], 99.50th=[ 292], 99.90th=[ 309], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 248, max= 542, per=24.86%, avg=429.00, stdev=76.76, samples=22 iops : min= 62, max= 135, avg=107.14, stdev=19.18, samples=22 write: IOPS=111, BW=446KiB/s (456kB/s)(5180KiB/11624msec); 0 zone resets slat (usec): min=29, max=4811, avg=156.82, stdev=229.06 clat (msec): min=15, max=312, avg=70.83, stdev=21.29 lat (msec): min=15, max=312, avg=70.99, stdev=21.29 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 52], 10.00th=[ 56], 20.00th=[ 61], | 30.00th=[ 64], 40.00th=[ 66], 50.00th=[ 69], 60.00th=[ 72], | 70.00th=[ 75], 80.00th=[ 81], 90.00th=[ 86], 95.00th=[ 93], | 99.00th=[ 120], 99.50th=[ 243], 99.90th=[ 309], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 240, max= 608, per=24.54%, avg=441.05, stdev=75.77, samples=22 iops : min= 60, max= 152, avg=110.14, stdev=18.94, samples=22 lat (msec) : 10=0.08%, 20=0.47%, 50=4.65%, 100=92.58%, 250=1.72% lat (msec) : 500=0.51% cpu : usr=0.42%, sys=3.46%, ctx=4640, 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=1726KiB/s (1768kB/s), 430KiB/s-443KiB/s (440kB/s-453kB/s), io=19.6MiB (20.5MB), run=11400-11624msec WRITE: bw=1797KiB/s (1840kB/s), 446KiB/s-455KiB/s (456kB/s-466kB/s), io=20.4MiB (21.4MB), run=11400-11624msec 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=181740: Sun Sep 6 23:54:41 2026 read: IOPS=5, BW=219MiB/s (229MB/s)(40.0MiB/183msec) slat (nsec): min=17640k, max=17640k, avg=17639938.00, stdev= 0.00 clat (nsec): min=155660k, max=155660k, avg=155660194.00, stdev= 0.00 lat (nsec): min=173305k, max=173305k, avg=173304649.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 157], | 70.00th=[ 157], 80.00th=[ 157], 90.00th=[ 157], 95.00th=[ 157], | 99.00th=[ 157], 99.50th=[ 157], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 157] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.59%, ctx=8, majf=0, minf=7 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=219MiB/s (229MB/s), 219MiB/s-219MiB/s (229MB/s-229MB/s), io=40.0MiB (41.9MB), run=183-183msec 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