== sanity test 398c: run fio to test AIO ================= 10:29:26 (1783952966) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.468359 s, 89.6 MB/s osc.lustre-OST0000-osc-ffff92e8429b0000.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=179921: Mon Jul 13 10:29:59 2026 write: IOPS=111, BW=446KiB/s (457kB/s)(10.0MiB/22940msec); 0 zone resets slat (usec): min=35, max=13436, avg=219.12, stdev=702.38 clat (msec): min=20, max=292, avg=142.34, stdev=39.95 lat (msec): min=21, max=292, avg=142.56, stdev=39.97 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 77], 10.00th=[ 104], 20.00th=[ 118], | 30.00th=[ 125], 40.00th=[ 130], 50.00th=[ 136], 60.00th=[ 144], | 70.00th=[ 153], 80.00th=[ 169], 90.00th=[ 199], 95.00th=[ 218], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 292] bw ( KiB/s): min= 256, max= 707, per=24.87%, avg=443.69, stdev=83.21, samples=45 iops : min= 64, max= 176, avg=110.56, stdev=20.76, samples=45 lat (msec) : 50=0.04%, 100=9.34%, 250=88.67%, 500=1.95% cpu : usr=0.22%, sys=1.31%, ctx=2546, majf=0, minf=11 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=179922: Mon Jul 13 10:29:59 2026 write: IOPS=111, BW=446KiB/s (457kB/s)(10.0MiB/22955msec); 0 zone resets slat (usec): min=36, max=12883, avg=218.70, stdev=647.00 clat (msec): min=24, max=308, avg=142.60, stdev=39.32 lat (msec): min=24, max=308, avg=142.82, stdev=39.33 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 80], 10.00th=[ 105], 20.00th=[ 117], | 30.00th=[ 124], 40.00th=[ 131], 50.00th=[ 138], 60.00th=[ 144], | 70.00th=[ 153], 80.00th=[ 169], 90.00th=[ 201], 95.00th=[ 220], | 99.00th=[ 253], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 309] bw ( KiB/s): min= 263, max= 709, per=24.87%, avg=443.67, stdev=85.29, samples=45 iops : min= 65, max= 177, avg=110.56, stdev=21.34, samples=45 lat (msec) : 50=0.04%, 100=8.87%, 250=90.08%, 500=1.02% cpu : usr=0.16%, sys=1.29%, ctx=2411, majf=0, minf=11 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=179923: Mon Jul 13 10:29:59 2026 write: IOPS=111, BW=448KiB/s (458kB/s)(10.0MiB/22875msec); 0 zone resets slat (usec): min=34, max=7285, avg=186.82, stdev=384.53 clat (msec): min=15, max=287, avg=142.67, stdev=40.16 lat (msec): min=16, max=287, avg=142.86, stdev=40.17 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 80], 10.00th=[ 105], 20.00th=[ 118], | 30.00th=[ 124], 40.00th=[ 132], 50.00th=[ 138], 60.00th=[ 144], | 70.00th=[ 153], 80.00th=[ 167], 90.00th=[ 194], 95.00th=[ 224], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 252, max= 817, per=25.03%, avg=446.49, stdev=92.13, samples=45 iops : min= 63, max= 204, avg=111.29, stdev=23.00, samples=45 lat (msec) : 20=0.04%, 50=0.08%, 100=8.63%, 250=88.95%, 500=2.30% cpu : usr=0.15%, sys=1.15%, ctx=2453, 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=179924: Mon Jul 13 10:29:59 2026 write: IOPS=112, BW=449KiB/s (459kB/s)(10.0MiB/22822msec); 0 zone resets slat (usec): min=36, max=14707, avg=231.40, stdev=649.80 clat (msec): min=8, max=309, avg=142.31, stdev=41.09 lat (msec): min=9, max=309, avg=142.55, stdev=41.12 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 78], 10.00th=[ 102], 20.00th=[ 117], | 30.00th=[ 125], 40.00th=[ 131], 50.00th=[ 138], 60.00th=[ 146], | 70.00th=[ 153], 80.00th=[ 169], 90.00th=[ 194], 95.00th=[ 224], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 254, max= 912, per=25.03%, avg=446.49, stdev=101.28, samples=45 iops : min= 63, max= 228, avg=111.27, stdev=25.37, samples=45 lat (msec) : 10=0.04%, 20=0.35%, 50=0.74%, 100=8.63%, 250=87.97% lat (msec) : 500=2.27% cpu : usr=0.20%, sys=1.37%, ctx=2694, 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 Run status group 0 (all jobs): WRITE: bw=1784KiB/s (1827kB/s), 446KiB/s-449KiB/s (457kB/s-459kB/s), io=40.0MiB (41.9MB), run=22822-22955msec 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=179938: Mon Jul 13 10:30:30 2026 read: IOPS=52, BW=210KiB/s (215kB/s)(5048KiB/24077msec) slat (usec): min=2260, max=52216, avg=10874.72, stdev=6429.60 clat (msec): min=11, max=303, avg=141.63, stdev=38.86 lat (msec): min=16, max=311, avg=152.51, stdev=40.63 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 90], 10.00th=[ 96], 20.00th=[ 107], | 30.00th=[ 117], 40.00th=[ 128], 50.00th=[ 138], 60.00th=[ 148], | 70.00th=[ 159], 80.00th=[ 174], 90.00th=[ 197], 95.00th=[ 213], | 99.00th=[ 247], 99.50th=[ 257], 99.90th=[ 296], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 114, max= 328, per=25.15%, avg=209.28, stdev=50.55, samples=47 iops : min= 28, max= 82, avg=51.89, stdev=12.69, samples=47 write: IOPS=53, BW=216KiB/s (221kB/s)(5192KiB/24077msec); 0 zone resets slat (usec): min=37, max=19746, avg=262.94, stdev=778.31 clat (msec): min=25, max=295, avg=145.47, stdev=37.55 lat (msec): min=25, max=296, avg=145.73, stdev=37.59 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 95], 10.00th=[ 103], 20.00th=[ 112], | 30.00th=[ 121], 40.00th=[ 131], 50.00th=[ 142], 60.00th=[ 153], | 70.00th=[ 163], 80.00th=[ 176], 90.00th=[ 199], 95.00th=[ 215], | 99.00th=[ 247], 99.50th=[ 257], 99.90th=[ 279], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 120, max= 351, per=24.92%, avg=216.04, stdev=53.82, samples=47 iops : min= 30, max= 87, avg=53.62, stdev=13.42, samples=47 lat (msec) : 20=0.04%, 50=0.16%, 100=10.78%, 250=88.28%, 500=0.74% cpu : usr=0.25%, sys=2.05%, ctx=4631, 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=179939: Mon Jul 13 10:30:30 2026 read: IOPS=51, BW=207KiB/s (212kB/s)(4976KiB/24012msec) slat (usec): min=33, max=59542, avg=11000.28, stdev=6553.66 clat (msec): min=17, max=345, avg=141.81, stdev=37.98 lat (msec): min=27, max=351, avg=152.81, stdev=39.73 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 92], 10.00th=[ 99], 20.00th=[ 108], | 30.00th=[ 117], 40.00th=[ 127], 50.00th=[ 138], 60.00th=[ 148], | 70.00th=[ 161], 80.00th=[ 176], 90.00th=[ 192], 95.00th=[ 207], | 99.00th=[ 236], 99.50th=[ 253], 99.90th=[ 342], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 128, max= 320, per=24.83%, avg=206.57, stdev=52.71, samples=47 iops : min= 32, max= 80, avg=51.23, stdev=13.19, samples=47 write: IOPS=54, BW=219KiB/s (224kB/s)(5264KiB/24012msec); 0 zone resets slat (usec): min=37, max=18761, avg=254.60, stdev=718.32 clat (msec): min=76, max=298, avg=146.78, stdev=37.01 lat (msec): min=77, max=298, avg=147.03, stdev=37.02 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 97], 10.00th=[ 104], 20.00th=[ 113], | 30.00th=[ 122], 40.00th=[ 131], 50.00th=[ 142], 60.00th=[ 153], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 194], 95.00th=[ 211], | 99.00th=[ 251], 99.50th=[ 268], 99.90th=[ 288], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 128, max= 327, per=25.35%, avg=219.79, stdev=47.09, samples=47 iops : min= 32, max= 81, avg=54.51, stdev=11.79, samples=47 lat (msec) : 20=0.04%, 50=0.08%, 100=9.41%, 250=89.65%, 500=0.82% cpu : usr=0.25%, sys=2.06%, ctx=4383, 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=179940: Mon Jul 13 10:30:30 2026 read: IOPS=51, BW=208KiB/s (213kB/s)(4984KiB/23965msec) slat (usec): min=2556, max=59833, avg=11093.86, stdev=6548.19 clat (msec): min=34, max=300, avg=141.97, stdev=37.99 lat (msec): min=48, max=310, avg=153.07, stdev=39.74 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 90], 10.00th=[ 97], 20.00th=[ 108], | 30.00th=[ 120], 40.00th=[ 128], 50.00th=[ 138], 60.00th=[ 148], | 70.00th=[ 161], 80.00th=[ 174], 90.00th=[ 192], 95.00th=[ 209], | 99.00th=[ 253], 99.50th=[ 266], 99.90th=[ 288], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 114, max= 351, per=25.07%, avg=208.62, stdev=47.00, samples=47 iops : min= 28, max= 87, avg=51.74, stdev=11.72, samples=47 write: IOPS=54, BW=219KiB/s (225kB/s)(5256KiB/23965msec); 0 zone resets slat (usec): min=37, max=10645, avg=248.84, stdev=579.04 clat (msec): min=78, max=285, avg=144.12, stdev=35.32 lat (msec): min=78, max=285, avg=144.37, stdev=35.34 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 94], 10.00th=[ 103], 20.00th=[ 111], | 30.00th=[ 123], 40.00th=[ 131], 50.00th=[ 142], 60.00th=[ 153], | 70.00th=[ 163], 80.00th=[ 174], 90.00th=[ 192], 95.00th=[ 209], | 99.00th=[ 239], 99.50th=[ 259], 99.90th=[ 271], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 104, max= 376, per=25.19%, avg=218.43, stdev=58.30, samples=47 iops : min= 26, max= 94, avg=54.19, stdev=14.61, samples=47 lat (msec) : 50=0.04%, 100=11.13%, 250=87.93%, 500=0.90% cpu : usr=0.18%, sys=2.24%, ctx=4709, 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=179941: Mon Jul 13 10:30:30 2026 read: IOPS=52, BW=210KiB/s (215kB/s)(5060KiB/24093msec) slat (usec): min=2354, max=77140, avg=10919.23, stdev=6300.15 clat (msec): min=12, max=292, avg=141.14, stdev=38.68 lat (msec): min=22, max=299, avg=152.07, stdev=40.47 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 91], 10.00th=[ 99], 20.00th=[ 108], | 30.00th=[ 116], 40.00th=[ 126], 50.00th=[ 136], 60.00th=[ 146], | 70.00th=[ 159], 80.00th=[ 174], 90.00th=[ 194], 95.00th=[ 211], | 99.00th=[ 255], 99.50th=[ 266], 99.90th=[ 284], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 127, max= 351, per=25.17%, avg=209.43, stdev=52.69, samples=47 iops : min= 31, max= 87, avg=51.91, stdev=13.16, samples=47 write: IOPS=53, BW=215KiB/s (220kB/s)(5180KiB/24093msec); 0 zone resets slat (usec): min=40, max=18382, avg=253.23, stdev=736.88 clat (msec): min=43, max=333, avg=146.77, stdev=37.74 lat (msec): min=43, max=333, avg=147.03, stdev=37.74 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 93], 10.00th=[ 103], 20.00th=[ 113], | 30.00th=[ 125], 40.00th=[ 134], 50.00th=[ 144], 60.00th=[ 153], | 70.00th=[ 163], 80.00th=[ 178], 90.00th=[ 199], 95.00th=[ 215], | 99.00th=[ 247], 99.50th=[ 264], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 95, max= 312, per=24.62%, avg=213.49, stdev=49.33, samples=47 iops : min= 23, max= 78, avg=52.96, stdev=12.44, samples=47 lat (msec) : 20=0.04%, 50=0.20%, 100=9.92%, 250=88.79%, 500=1.05% cpu : usr=0.24%, sys=2.05%, ctx=4315, 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=833KiB/s (853kB/s), 207KiB/s-210KiB/s (212kB/s-215kB/s), io=19.6MiB (20.5MB), run=23965-24093msec WRITE: bw=867KiB/s (888kB/s), 215KiB/s-219KiB/s (220kB/s-225kB/s), io=20.4MiB (21.4MB), run=23965-24093msec 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=179951: Mon Jul 13 10:30:39 2026 read: IOPS=2, BW=98.5MiB/s (103MB/s)(40.0MiB/406msec) slat (nsec): min=27725k, max=27725k, avg=27725297.00, stdev= 0.00 clat (nsec): min=355272k, max=355272k, avg=355271999.00, stdev= 0.00 lat (nsec): min=383002k, max=383002k, avg=383002150.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.96%, ctx=12, 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=98.5MiB/s (103MB/s), 98.5MiB/s-98.5MiB/s (103MB/s-103MB/s), io=40.0MiB (41.9MB), run=406-406msec 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