== sanity test 398c: run fio to test AIO ================= 23:08:36 (1784171316) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.147285 s, 285 MB/s osc.lustre-OST0000-osc-ffff9eea8319c800.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=160547: Wed Jul 15 23:09:11 2026 write: IOPS=82, BW=330KiB/s (337kB/s)(10.0MiB/31073msec); 0 zone resets slat (usec): min=44, max=1446, avg=235.04, stdev=111.53 clat (msec): min=14, max=319, avg=193.77, stdev=36.56 lat (msec): min=14, max=319, avg=194.00, stdev=36.55 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 136], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 205], | 70.00th=[ 211], 80.00th=[ 222], 90.00th=[ 236], 95.00th=[ 251], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 321] bw ( KiB/s): min= 248, max= 570, per=24.93%, avg=328.30, stdev=52.61, samples=61 iops : min= 62, max= 142, avg=82.07, stdev=13.11, samples=61 lat (msec) : 20=0.04%, 50=0.12%, 100=1.45%, 250=93.24%, 500=5.16% cpu : usr=0.12%, sys=1.57%, ctx=2866, 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=160548: Wed Jul 15 23:09:11 2026 write: IOPS=82, BW=329KiB/s (337kB/s)(10.0MiB/31084msec); 0 zone resets slat (usec): min=44, max=793, avg=230.64, stdev=106.30 clat (msec): min=75, max=333, avg=193.77, stdev=35.92 lat (msec): min=75, max=333, avg=194.00, stdev=35.93 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 203], | 70.00th=[ 211], 80.00th=[ 222], 90.00th=[ 232], 95.00th=[ 249], | 99.00th=[ 292], 99.50th=[ 296], 99.90th=[ 321], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 248, max= 512, per=24.90%, avg=327.87, stdev=50.56, samples=61 iops : min= 62, max= 128, avg=81.97, stdev=12.64, samples=61 lat (msec) : 100=1.33%, 250=94.02%, 500=4.65% cpu : usr=0.12%, sys=1.54%, ctx=2861, 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=160549: Wed Jul 15 23:09:11 2026 write: IOPS=82, BW=330KiB/s (338kB/s)(10.0MiB/31029msec); 0 zone resets slat (usec): min=41, max=924, avg=220.38, stdev=111.68 clat (msec): min=42, max=342, avg=193.58, stdev=37.37 lat (msec): min=42, max=343, avg=193.80, stdev=37.38 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 136], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 194], 60.00th=[ 203], | 70.00th=[ 211], 80.00th=[ 220], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 330], | 99.99th=[ 342] bw ( KiB/s): min= 240, max= 615, per=24.99%, avg=329.16, stdev=54.56, samples=61 iops : min= 60, max= 153, avg=82.28, stdev=13.57, samples=61 lat (msec) : 50=0.62%, 100=0.62%, 250=93.32%, 500=5.43% cpu : usr=0.11%, sys=1.49%, ctx=2665, 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=160550: Wed Jul 15 23:09:11 2026 write: IOPS=82, BW=329KiB/s (337kB/s)(10.0MiB/31084msec); 0 zone resets slat (usec): min=47, max=893, avg=234.83, stdev=107.95 clat (msec): min=71, max=315, avg=193.81, stdev=35.53 lat (msec): min=71, max=315, avg=194.05, stdev=35.53 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 194], 60.00th=[ 203], | 70.00th=[ 211], 80.00th=[ 222], 90.00th=[ 236], 95.00th=[ 251], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 317] bw ( KiB/s): min= 240, max= 519, per=24.88%, avg=327.72, stdev=47.22, samples=61 iops : min= 60, max= 129, avg=81.92, stdev=11.75, samples=61 lat (msec) : 100=1.48%, 250=93.36%, 500=5.16% cpu : usr=0.14%, sys=1.54%, ctx=2837, 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=1318KiB/s (1349kB/s), 329KiB/s-330KiB/s (337kB/s-338kB/s), io=40.0MiB (41.9MB), run=31029-31084msec 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=160564: Wed Jul 15 23:09:33 2026 read: IOPS=65, BW=263KiB/s (270kB/s)(5048KiB/19169msec) slat (usec): min=1019, max=5768, avg=2522.84, stdev=797.84 clat (msec): min=3, max=214, avg=76.48, stdev=15.73 lat (msec): min=6, max=217, avg=79.00, stdev=15.73 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 66], | 30.00th=[ 70], 40.00th=[ 74], 50.00th=[ 78], 60.00th=[ 81], | 70.00th=[ 84], 80.00th=[ 87], 90.00th=[ 93], 95.00th=[ 99], | 99.00th=[ 109], 99.50th=[ 115], 99.90th=[ 182], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 160, max= 368, per=25.11%, avg=262.66, stdev=47.51, samples=38 iops : min= 40, max= 92, avg=65.66, stdev=11.88, samples=38 write: IOPS=67, BW=271KiB/s (277kB/s)(5192KiB/19169msec); 0 zone resets slat (usec): min=62, max=927, avg=204.91, stdev=100.80 clat (msec): min=33, max=298, avg=158.75, stdev=34.47 lat (msec): min=33, max=298, avg=158.96, stdev=34.48 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 105], 10.00th=[ 116], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 243], 99.50th=[ 255], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 208, max= 320, per=24.75%, avg=269.50, stdev=29.07, samples=38 iops : min= 52, max= 80, avg=67.37, stdev= 7.26, samples=38 lat (msec) : 4=0.04%, 10=0.16%, 20=0.43%, 50=0.66%, 100=47.97% lat (msec) : 250=50.43%, 500=0.31% cpu : usr=0.19%, sys=2.61%, ctx=4827, 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=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=160565: Wed Jul 15 23:09:33 2026 read: IOPS=64, BW=260KiB/s (266kB/s)(4976KiB/19169msec) slat (usec): min=71, max=6286, avg=2494.64, stdev=796.92 clat (msec): min=2, max=178, avg=76.28, stdev=14.52 lat (msec): min=6, max=180, avg=78.78, stdev=14.55 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 70], 40.00th=[ 74], 50.00th=[ 78], 60.00th=[ 80], | 70.00th=[ 83], 80.00th=[ 87], 90.00th=[ 93], 95.00th=[ 96], | 99.00th=[ 106], 99.50th=[ 112], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 152, max= 384, per=24.70%, avg=258.37, stdev=54.11, samples=38 iops : min= 38, max= 96, avg=64.58, stdev=13.52, samples=38 write: IOPS=68, BW=275KiB/s (281kB/s)(5264KiB/19169msec); 0 zone resets slat (usec): min=54, max=1040, avg=205.51, stdev=104.46 clat (msec): min=32, max=255, avg=158.18, stdev=35.54 lat (msec): min=32, max=255, avg=158.39, stdev=35.54 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 105], 10.00th=[ 113], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 205], 95.00th=[ 218], | 99.00th=[ 243], 99.50th=[ 249], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 208, max= 344, per=25.11%, avg=273.45, stdev=32.99, samples=38 iops : min= 52, max= 86, avg=68.34, stdev= 8.24, samples=38 lat (msec) : 4=0.08%, 10=0.20%, 20=0.23%, 50=1.02%, 100=47.34% lat (msec) : 250=50.90%, 500=0.23% cpu : usr=0.26%, sys=2.50%, ctx=4856, 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=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=160566: Wed Jul 15 23:09:33 2026 read: IOPS=64, BW=260KiB/s (266kB/s)(4984KiB/19176msec) slat (usec): min=1087, max=7702, avg=2518.92, stdev=785.15 clat (msec): min=3, max=108, avg=76.34, stdev=14.00 lat (msec): min=7, max=112, avg=78.86, stdev=14.01 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 71], 40.00th=[ 74], 50.00th=[ 78], 60.00th=[ 81], | 70.00th=[ 84], 80.00th=[ 88], 90.00th=[ 93], 95.00th=[ 97], | 99.00th=[ 105], 99.50th=[ 105], 99.90th=[ 107], 99.95th=[ 109], | 99.99th=[ 109] bw ( KiB/s): min= 176, max= 384, per=24.89%, avg=260.34, stdev=56.03, samples=38 iops : min= 44, max= 96, avg=65.08, stdev=14.01, samples=38 write: IOPS=68, BW=274KiB/s (281kB/s)(5256KiB/19176msec); 0 zone resets slat (usec): min=47, max=697, avg=207.44, stdev=104.51 clat (msec): min=27, max=254, avg=158.07, stdev=35.10 lat (msec): min=27, max=255, avg=158.28, stdev=35.10 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 102], 10.00th=[ 116], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 203], 95.00th=[ 215], | 99.00th=[ 236], 99.50th=[ 243], 99.90th=[ 251], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 208, max= 336, per=24.95%, avg=271.71, stdev=32.37, samples=38 iops : min= 52, max= 84, avg=67.92, stdev= 8.10, samples=38 lat (msec) : 4=0.08%, 10=0.20%, 20=0.35%, 50=1.09%, 100=48.09% lat (msec) : 250=50.16%, 500=0.04% cpu : usr=0.21%, sys=2.59%, ctx=4899, 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=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=160567: Wed Jul 15 23:09:33 2026 read: IOPS=66, BW=265KiB/s (271kB/s)(5060KiB/19119msec) slat (usec): min=1156, max=6120, avg=2489.23, stdev=768.60 clat (msec): min=4, max=176, avg=76.17, stdev=14.83 lat (msec): min=7, max=179, avg=78.66, stdev=14.87 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 67], | 30.00th=[ 70], 40.00th=[ 73], 50.00th=[ 78], 60.00th=[ 81], | 70.00th=[ 84], 80.00th=[ 87], 90.00th=[ 93], 95.00th=[ 96], | 99.00th=[ 105], 99.50th=[ 108], 99.90th=[ 165], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 176, max= 376, per=25.55%, avg=267.30, stdev=44.41, samples=37 iops : min= 44, max= 94, avg=66.81, stdev=11.11, samples=37 write: IOPS=67, BW=271KiB/s (277kB/s)(5180KiB/19119msec); 0 zone resets slat (usec): min=52, max=2247, avg=204.99, stdev=121.14 clat (msec): min=52, max=320, avg=158.53, stdev=35.34 lat (msec): min=52, max=320, avg=158.74, stdev=35.34 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 106], 10.00th=[ 116], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 201], 95.00th=[ 220], | 99.00th=[ 249], 99.50th=[ 292], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 200, max= 368, per=24.93%, avg=271.49, stdev=33.06, samples=37 iops : min= 50, max= 92, avg=67.86, stdev= 8.27, samples=37 lat (msec) : 10=0.16%, 20=0.51%, 50=0.66%, 100=48.63%, 250=49.57% lat (msec) : 500=0.47% cpu : usr=0.23%, sys=2.54%, ctx=4893, 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=1047KiB/s (1072kB/s), 260KiB/s-265KiB/s (266kB/s-271kB/s), io=19.6MiB (20.5MB), run=19119-19176msec WRITE: bw=1089KiB/s (1116kB/s), 271KiB/s-275KiB/s (277kB/s-281kB/s), io=20.4MiB (21.4MB), run=19119-19176msec 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=160574: Wed Jul 15 23:09:36 2026 read: IOPS=7, BW=315MiB/s (330MB/s)(40.0MiB/127msec) slat (nsec): min=9766.7k, max=9766.7k, avg=9766747.00, stdev= 0.00 clat (nsec): min=111850k, max=111850k, avg=111850189.00, stdev= 0.00 lat (nsec): min=121621k, max=121621k, avg=121621189.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 112], | 30.00th=[ 112], 40.00th=[ 112], 50.00th=[ 112], 60.00th=[ 112], | 70.00th=[ 112], 80.00th=[ 112], 90.00th=[ 112], 95.00th=[ 112], | 99.00th=[ 112], 99.50th=[ 112], 99.90th=[ 112], 99.95th=[ 112], | 99.99th=[ 112] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.14%, ctx=40, 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=315MiB/s (330MB/s), 315MiB/s-315MiB/s (330MB/s-330MB/s), io=40.0MiB (41.9MB), run=127-127msec 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