== sanity test 398c: run fio to test AIO ================= 10:42:04 (1789483324) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.301191 s, 139 MB/s osc.lustre-OST0000-osc-ffff9ad8f2387800.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=183128: Tue Sep 15 10:42:30 2026 write: IOPS=130, BW=520KiB/s (533kB/s)(10.0MiB/19681msec); 0 zone resets slat (usec): min=25, max=48893, avg=206.31, stdev=1039.03 clat (msec): min=11, max=261, avg=122.12, stdev=25.06 lat (msec): min=12, max=261, avg=122.33, stdev=24.99 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 86], 10.00th=[ 94], 20.00th=[ 104], | 30.00th=[ 110], 40.00th=[ 115], 50.00th=[ 121], 60.00th=[ 127], | 70.00th=[ 133], 80.00th=[ 140], 90.00th=[ 153], 95.00th=[ 163], | 99.00th=[ 192], 99.50th=[ 203], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 367, max= 644, per=24.93%, avg=517.79, stdev=64.67, samples=39 iops : min= 91, max= 161, avg=129.15, stdev=16.22, samples=39 lat (msec) : 20=0.16%, 50=0.35%, 100=14.34%, 250=85.04%, 500=0.12% cpu : usr=0.26%, sys=1.51%, ctx=3142, 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=183129: Tue Sep 15 10:42:30 2026 write: IOPS=130, BW=520KiB/s (533kB/s)(10.0MiB/19679msec); 0 zone resets slat (usec): min=29, max=5763, avg=159.85, stdev=349.06 clat (msec): min=51, max=259, avg=122.62, stdev=23.62 lat (msec): min=51, max=259, avg=122.79, stdev=23.63 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 88], 10.00th=[ 96], 20.00th=[ 105], | 30.00th=[ 111], 40.00th=[ 115], 50.00th=[ 121], 60.00th=[ 127], | 70.00th=[ 134], 80.00th=[ 140], 90.00th=[ 153], 95.00th=[ 163], | 99.00th=[ 184], 99.50th=[ 220], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 383, max= 725, per=24.91%, avg=517.44, stdev=74.59, samples=39 iops : min= 95, max= 181, avg=129.08, stdev=18.74, samples=39 lat (msec) : 100=13.59%, 250=86.21%, 500=0.20% cpu : usr=0.23%, sys=1.12%, ctx=2613, 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=183130: Tue Sep 15 10:42:30 2026 write: IOPS=129, BW=519KiB/s (532kB/s)(10.0MiB/19716msec); 0 zone resets slat (usec): min=27, max=5979, avg=164.52, stdev=393.93 clat (msec): min=20, max=218, avg=122.31, stdev=23.66 lat (msec): min=20, max=218, avg=122.48, stdev=23.67 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 90], 10.00th=[ 95], 20.00th=[ 105], | 30.00th=[ 110], 40.00th=[ 115], 50.00th=[ 121], 60.00th=[ 127], | 70.00th=[ 134], 80.00th=[ 140], 90.00th=[ 153], 95.00th=[ 163], | 99.00th=[ 190], 99.50th=[ 203], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 218] bw ( KiB/s): min= 383, max= 638, per=24.94%, avg=518.00, stdev=65.57, samples=39 iops : min= 95, max= 159, avg=129.23, stdev=16.42, samples=39 lat (msec) : 50=0.35%, 100=13.52%, 250=86.13% cpu : usr=0.21%, sys=1.19%, ctx=2402, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=183131: Tue Sep 15 10:42:30 2026 write: IOPS=129, BW=519KiB/s (532kB/s)(10.0MiB/19713msec); 0 zone resets slat (usec): min=25, max=6808, avg=182.49, stdev=418.62 clat (msec): min=13, max=223, avg=122.24, stdev=23.20 lat (msec): min=13, max=223, avg=122.43, stdev=23.19 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 89], 10.00th=[ 96], 20.00th=[ 104], | 30.00th=[ 110], 40.00th=[ 115], 50.00th=[ 121], 60.00th=[ 127], | 70.00th=[ 134], 80.00th=[ 140], 90.00th=[ 153], 95.00th=[ 163], | 99.00th=[ 182], 99.50th=[ 192], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 224] bw ( KiB/s): min= 383, max= 636, per=24.95%, avg=518.21, stdev=64.16, samples=39 iops : min= 95, max= 159, avg=129.26, stdev=16.08, samples=39 lat (msec) : 20=0.04%, 50=0.04%, 100=13.83%, 250=86.09% cpu : usr=0.18%, sys=1.25%, ctx=2894, 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=2078KiB/s (2127kB/s), 519KiB/s-520KiB/s (532kB/s-533kB/s), io=40.0MiB (41.9MB), run=19679-19716msec 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=183143: Tue Sep 15 10:42:52 2026 read: IOPS=74, BW=299KiB/s (306kB/s)(5048KiB/16911msec) slat (usec): min=2135, max=25342, avg=6948.62, stdev=2944.25 clat (msec): min=45, max=201, avg=99.73, stdev=21.82 lat (msec): min=53, max=214, avg=106.69, stdev=22.78 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 68], 10.00th=[ 74], 20.00th=[ 82], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 99], 60.00th=[ 104], | 70.00th=[ 110], 80.00th=[ 116], 90.00th=[ 127], 95.00th=[ 138], | 99.00th=[ 165], 99.50th=[ 176], 99.90th=[ 197], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 172, max= 391, per=24.96%, avg=296.03, stdev=53.55, samples=33 iops : min= 43, max= 97, avg=73.73, stdev=13.37, samples=33 write: IOPS=76, BW=307KiB/s (314kB/s)(5192KiB/16911msec); 0 zone resets slat (usec): min=27, max=5472, avg=182.41, stdev=315.88 clat (msec): min=16, max=196, avg=102.83, stdev=20.48 lat (msec): min=18, max=196, avg=103.01, stdev=20.48 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 73], 10.00th=[ 81], 20.00th=[ 87], | 30.00th=[ 92], 40.00th=[ 96], 50.00th=[ 100], 60.00th=[ 105], | 70.00th=[ 112], 80.00th=[ 120], 90.00th=[ 131], 95.00th=[ 142], | 99.00th=[ 157], 99.50th=[ 169], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 212, max= 487, per=24.77%, avg=305.97, stdev=59.17, samples=33 iops : min= 53, max= 121, avg=76.21, stdev=14.72, samples=33 lat (msec) : 20=0.04%, 50=0.04%, 100=51.80%, 250=48.12% cpu : usr=0.40%, sys=2.31%, ctx=4567, 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=183144: Tue Sep 15 10:42:52 2026 read: IOPS=74, BW=298KiB/s (305kB/s)(4976KiB/16713msec) slat (usec): min=46, max=21055, avg=6896.44, stdev=2997.47 clat (msec): min=13, max=218, avg=99.08, stdev=22.46 lat (msec): min=13, max=224, avg=105.98, stdev=23.31 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 69], 10.00th=[ 74], 20.00th=[ 82], | 30.00th=[ 86], 40.00th=[ 91], 50.00th=[ 96], 60.00th=[ 103], | 70.00th=[ 109], 80.00th=[ 116], 90.00th=[ 128], 95.00th=[ 140], | 99.00th=[ 165], 99.50th=[ 174], 99.90th=[ 213], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 208, max= 408, per=25.03%, avg=296.82, stdev=50.91, samples=33 iops : min= 52, max= 102, avg=73.91, stdev=12.72, samples=33 write: IOPS=78, BW=315KiB/s (323kB/s)(5264KiB/16713msec); 0 zone resets slat (usec): min=34, max=6156, avg=167.35, stdev=279.92 clat (msec): min=21, max=206, avg=102.50, stdev=20.25 lat (msec): min=21, max=206, avg=102.66, stdev=20.26 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 75], 10.00th=[ 80], 20.00th=[ 86], | 30.00th=[ 92], 40.00th=[ 96], 50.00th=[ 101], 60.00th=[ 105], | 70.00th=[ 111], 80.00th=[ 118], 90.00th=[ 132], 95.00th=[ 140], | 99.00th=[ 155], 99.50th=[ 167], 99.90th=[ 190], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 183, max= 439, per=25.52%, avg=315.12, stdev=61.32, samples=33 iops : min= 45, max= 109, avg=78.48, stdev=15.29, samples=33 lat (msec) : 20=0.08%, 50=0.16%, 100=53.09%, 250=46.68% cpu : usr=0.29%, sys=2.34%, ctx=4687, 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=183145: Tue Sep 15 10:42:52 2026 read: IOPS=73, BW=295KiB/s (302kB/s)(4984KiB/16897msec) slat (usec): min=1993, max=20915, avg=6998.25, stdev=2859.76 clat (msec): min=13, max=204, avg=99.92, stdev=21.16 lat (msec): min=17, max=210, avg=106.93, stdev=21.97 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 70], 10.00th=[ 75], 20.00th=[ 83], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 99], 60.00th=[ 104], | 70.00th=[ 110], 80.00th=[ 117], 90.00th=[ 126], 95.00th=[ 138], | 99.00th=[ 157], 99.50th=[ 169], 99.90th=[ 197], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 159, max= 384, per=24.84%, avg=294.58, stdev=50.58, samples=33 iops : min= 39, max= 96, avg=73.36, stdev=12.72, samples=33 write: IOPS=77, BW=311KiB/s (319kB/s)(5256KiB/16897msec); 0 zone resets slat (usec): min=37, max=7378, avg=188.30, stdev=368.70 clat (msec): min=57, max=190, avg=102.63, stdev=20.20 lat (msec): min=58, max=190, avg=102.82, stdev=20.23 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 75], 10.00th=[ 80], 20.00th=[ 86], | 30.00th=[ 91], 40.00th=[ 95], 50.00th=[ 100], 60.00th=[ 105], | 70.00th=[ 111], 80.00th=[ 121], 90.00th=[ 131], 95.00th=[ 140], | 99.00th=[ 157], 99.50th=[ 169], 99.90th=[ 190], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 190, max= 495, per=25.05%, avg=309.39, stdev=67.04, samples=33 iops : min= 47, max= 123, avg=77.06, stdev=16.68, samples=33 lat (msec) : 20=0.04%, 50=0.04%, 100=52.81%, 250=47.11% cpu : usr=0.31%, sys=2.33%, ctx=4845, 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=183146: Tue Sep 15 10:42:52 2026 read: IOPS=74, BW=299KiB/s (307kB/s)(5060KiB/16896msec) slat (usec): min=1691, max=23981, avg=6952.48, stdev=3025.09 clat (msec): min=37, max=210, avg=99.61, stdev=21.52 lat (msec): min=41, max=223, avg=106.57, stdev=22.34 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 69], 10.00th=[ 75], 20.00th=[ 82], | 30.00th=[ 87], 40.00th=[ 92], 50.00th=[ 99], 60.00th=[ 104], | 70.00th=[ 109], 80.00th=[ 116], 90.00th=[ 127], 95.00th=[ 140], | 99.00th=[ 161], 99.50th=[ 174], 99.90th=[ 205], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 191, max= 407, per=25.17%, avg=298.48, stdev=53.24, samples=33 iops : min= 47, max= 101, avg=74.30, stdev=13.31, samples=33 write: IOPS=76, BW=307KiB/s (314kB/s)(5180KiB/16896msec); 0 zone resets slat (usec): min=25, max=4866, avg=187.00, stdev=332.92 clat (msec): min=55, max=194, avg=103.14, stdev=20.46 lat (msec): min=55, max=194, avg=103.33, stdev=20.47 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 74], 10.00th=[ 80], 20.00th=[ 87], | 30.00th=[ 91], 40.00th=[ 96], 50.00th=[ 101], 60.00th=[ 106], | 70.00th=[ 112], 80.00th=[ 121], 90.00th=[ 130], 95.00th=[ 142], | 99.00th=[ 159], 99.50th=[ 165], 99.90th=[ 194], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 199, max= 408, per=24.72%, avg=305.27, stdev=54.55, samples=33 iops : min= 49, max= 102, avg=76.03, stdev=13.61, samples=33 lat (msec) : 50=0.16%, 100=51.80%, 250=48.05% cpu : usr=0.34%, sys=2.39%, ctx=4720, 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=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=1187KiB/s (1215kB/s), 295KiB/s-299KiB/s (302kB/s-307kB/s), io=19.6MiB (20.5MB), run=16713-16911msec WRITE: bw=1235KiB/s (1265kB/s), 307KiB/s-315KiB/s (314kB/s-323kB/s), io=20.4MiB (21.4MB), run=16713-16911msec 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=183152: Tue Sep 15 10:42:56 2026 read: IOPS=4, BW=177MiB/s (186MB/s)(40.0MiB/226msec) slat (nsec): min=16759k, max=16759k, avg=16758996.00, stdev= 0.00 clat (nsec): min=196197k, max=196197k, avg=196197319.00, stdev= 0.00 lat (nsec): min=212961k, max=212961k, avg=212960798.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 197], | 70.00th=[ 197], 80.00th=[ 197], 90.00th=[ 197], 95.00th=[ 197], | 99.00th=[ 197], 99.50th=[ 197], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.22%, ctx=6, 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=177MiB/s (186MB/s), 177MiB/s-177MiB/s (186MB/s-186MB/s), io=40.0MiB (41.9MB), run=226-226msec 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