== sanity test 398c: run fio to test AIO ================= 05:51:53 (1779875513) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.391687 s, 107 MB/s osc.lustre-OST0000-osc-ffff989f06280800.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=185955: Wed May 27 05:52:27 2026 write: IOPS=101, BW=406KiB/s (415kB/s)(10.0MiB/25251msec); 0 zone resets slat (usec): min=40, max=11154, avg=320.36, stdev=739.00 clat (msec): min=17, max=272, avg=157.29, stdev=35.58 lat (msec): min=17, max=272, avg=157.62, stdev=35.54 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 97], 10.00th=[ 116], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 213], | 99.00th=[ 247], 99.50th=[ 257], 99.90th=[ 259], 99.95th=[ 262], | 99.99th=[ 271] bw ( KiB/s): min= 282, max= 751, per=24.92%, avg=402.44, stdev=80.30, samples=50 iops : min= 70, max= 187, avg=100.28, stdev=20.03, samples=50 lat (msec) : 20=0.04%, 50=0.66%, 100=4.38%, 250=94.18%, 500=0.74% cpu : usr=0.25%, sys=1.39%, ctx=2960, 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=185956: Wed May 27 05:52:27 2026 write: IOPS=100, BW=404KiB/s (414kB/s)(10.0MiB/25349msec); 0 zone resets slat (usec): min=37, max=15095, avg=285.31, stdev=707.39 clat (msec): min=20, max=274, avg=157.49, stdev=33.94 lat (msec): min=20, max=274, avg=157.77, stdev=33.93 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 107], 10.00th=[ 118], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 209], | 99.00th=[ 239], 99.50th=[ 253], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 275] bw ( KiB/s): min= 256, max= 635, per=24.84%, avg=401.12, stdev=70.69, samples=50 iops : min= 64, max= 158, avg=99.94, stdev=17.62, samples=50 lat (msec) : 50=0.66%, 100=3.91%, 250=94.77%, 500=0.66% cpu : usr=0.11%, sys=1.18%, ctx=2450, 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=185957: Wed May 27 05:52:27 2026 write: IOPS=101, BW=404KiB/s (414kB/s)(10.0MiB/25335msec); 0 zone resets slat (usec): min=53, max=13684, avg=306.55, stdev=789.97 clat (msec): min=13, max=273, avg=157.39, stdev=34.20 lat (msec): min=14, max=273, avg=157.70, stdev=34.18 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 107], 10.00th=[ 116], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 211], | 99.00th=[ 245], 99.50th=[ 253], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 275] bw ( KiB/s): min= 262, max= 597, per=24.85%, avg=401.28, stdev=68.12, samples=50 iops : min= 65, max= 149, avg=100.00, stdev=17.05, samples=50 lat (msec) : 20=0.08%, 50=0.51%, 100=3.32%, 250=95.47%, 500=0.62% cpu : usr=0.17%, sys=1.32%, ctx=2889, 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=185958: Wed May 27 05:52:27 2026 write: IOPS=100, BW=404KiB/s (414kB/s)(10.0MiB/25354msec); 0 zone resets slat (usec): min=47, max=21491, avg=316.71, stdev=800.26 clat (msec): min=29, max=264, avg=157.62, stdev=33.77 lat (msec): min=29, max=264, avg=157.94, stdev=33.75 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 108], 10.00th=[ 118], 20.00th=[ 131], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 203], 95.00th=[ 213], | 99.00th=[ 234], 99.50th=[ 236], 99.90th=[ 255], 99.95th=[ 257], | 99.99th=[ 264] bw ( KiB/s): min= 264, max= 591, per=24.78%, avg=400.20, stdev=68.14, samples=50 iops : min= 66, max= 147, avg=99.72, stdev=16.99, samples=50 lat (msec) : 50=0.31%, 100=3.48%, 250=95.98%, 500=0.23% cpu : usr=0.16%, sys=1.21%, ctx=2881, 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=1616KiB/s (1654kB/s), 404KiB/s-406KiB/s (414kB/s-415kB/s), io=40.0MiB (41.9MB), run=25251-25354msec 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=185971: Wed May 27 05:52:56 2026 read: IOPS=59, BW=237KiB/s (242kB/s)(5048KiB/21322msec) slat (usec): min=59, max=38742, avg=9370.19, stdev=4858.33 clat (msec): min=55, max=295, avg=127.86, stdev=35.70 lat (msec): min=61, max=303, avg=137.24, stdev=37.03 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 86], 10.00th=[ 92], 20.00th=[ 102], | 30.00th=[ 109], 40.00th=[ 114], 50.00th=[ 122], 60.00th=[ 129], | 70.00th=[ 138], 80.00th=[ 148], 90.00th=[ 174], 95.00th=[ 199], | 99.00th=[ 262], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 135, max= 368, per=25.09%, avg=236.10, stdev=47.63, samples=42 iops : min= 33, max= 92, avg=58.60, stdev=11.97, samples=42 write: IOPS=60, BW=244KiB/s (249kB/s)(5192KiB/21322msec); 0 zone resets slat (usec): min=53, max=11622, avg=280.46, stdev=621.35 clat (msec): min=43, max=277, avg=127.83, stdev=31.65 lat (msec): min=43, max=277, avg=128.12, stdev=31.66 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 90], 10.00th=[ 96], 20.00th=[ 105], | 30.00th=[ 112], 40.00th=[ 117], 50.00th=[ 123], 60.00th=[ 129], | 70.00th=[ 136], 80.00th=[ 146], 90.00th=[ 163], 95.00th=[ 186], | 99.00th=[ 255], 99.50th=[ 262], 99.90th=[ 271], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 95, max= 359, per=24.86%, avg=243.38, stdev=60.62, samples=42 iops : min= 23, max= 89, avg=60.43, stdev=15.25, samples=42 lat (msec) : 50=0.08%, 100=17.19%, 250=81.45%, 500=1.29% cpu : usr=0.30%, sys=2.22%, ctx=4718, 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=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=185972: Wed May 27 05:52:56 2026 read: IOPS=58, BW=235KiB/s (241kB/s)(4976KiB/21163msec) slat (usec): min=54, max=48305, avg=9121.78, stdev=4695.37 clat (msec): min=19, max=324, avg=125.27, stdev=35.22 lat (msec): min=19, max=337, avg=134.39, stdev=36.41 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 85], 10.00th=[ 90], 20.00th=[ 99], | 30.00th=[ 106], 40.00th=[ 113], 50.00th=[ 120], 60.00th=[ 126], | 70.00th=[ 134], 80.00th=[ 146], 90.00th=[ 167], 95.00th=[ 190], | 99.00th=[ 251], 99.50th=[ 264], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 95, max= 344, per=24.83%, avg=233.69, stdev=51.07, samples=42 iops : min= 23, max= 86, avg=58.00, stdev=12.87, samples=42 write: IOPS=62, BW=249KiB/s (255kB/s)(5264KiB/21163msec); 0 zone resets slat (usec): min=52, max=9098, avg=294.98, stdev=584.50 clat (msec): min=52, max=311, avg=128.71, stdev=33.02 lat (msec): min=52, max=312, avg=129.00, stdev=33.03 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 91], 10.00th=[ 97], 20.00th=[ 106], | 30.00th=[ 111], 40.00th=[ 116], 50.00th=[ 123], 60.00th=[ 128], | 70.00th=[ 136], 80.00th=[ 146], 90.00th=[ 169], 95.00th=[ 192], | 99.00th=[ 257], 99.50th=[ 275], 99.90th=[ 309], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 119, max= 400, per=25.31%, avg=247.76, stdev=58.89, samples=42 iops : min= 29, max= 100, avg=61.52, stdev=14.81, samples=42 lat (msec) : 20=0.04%, 50=0.04%, 100=16.91%, 250=81.91%, 500=1.09% cpu : usr=0.28%, sys=2.27%, ctx=4488, 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=185973: Wed May 27 05:52:56 2026 read: IOPS=58, BW=235KiB/s (240kB/s)(4984KiB/21235msec) slat (usec): min=59, max=39547, avg=9408.86, stdev=4945.33 clat (msec): min=10, max=297, avg=126.01, stdev=35.12 lat (msec): min=24, max=313, avg=135.42, stdev=36.54 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 86], 10.00th=[ 93], 20.00th=[ 102], | 30.00th=[ 108], 40.00th=[ 114], 50.00th=[ 120], 60.00th=[ 126], | 70.00th=[ 136], 80.00th=[ 146], 90.00th=[ 169], 95.00th=[ 194], | 99.00th=[ 262], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 143, max= 360, per=24.98%, avg=235.05, stdev=49.57, samples=42 iops : min= 35, max= 90, avg=58.33, stdev=12.51, samples=42 write: IOPS=61, BW=248KiB/s (253kB/s)(5256KiB/21235msec); 0 zone resets slat (usec): min=43, max=11504, avg=316.36, stdev=634.05 clat (msec): min=37, max=290, avg=129.08, stdev=33.99 lat (msec): min=37, max=291, avg=129.40, stdev=33.99 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 89], 10.00th=[ 95], 20.00th=[ 104], | 30.00th=[ 111], 40.00th=[ 117], 50.00th=[ 124], 60.00th=[ 130], | 70.00th=[ 138], 80.00th=[ 148], 90.00th=[ 171], 95.00th=[ 194], | 99.00th=[ 253], 99.50th=[ 264], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 71, max= 343, per=25.18%, avg=246.50, stdev=54.74, samples=42 iops : min= 17, max= 85, avg=61.19, stdev=13.76, samples=42 lat (msec) : 20=0.08%, 50=0.23%, 100=15.98%, 250=82.38%, 500=1.33% cpu : usr=0.30%, sys=2.27%, ctx=4610, 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=185974: Wed May 27 05:52:56 2026 read: IOPS=59, BW=237KiB/s (243kB/s)(5060KiB/21308msec) slat (usec): min=60, max=43220, avg=9191.30, stdev=4752.77 clat (msec): min=44, max=308, avg=125.24, stdev=34.00 lat (msec): min=51, max=320, avg=134.44, stdev=35.41 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 86], 10.00th=[ 91], 20.00th=[ 101], | 30.00th=[ 107], 40.00th=[ 113], 50.00th=[ 120], 60.00th=[ 126], | 70.00th=[ 133], 80.00th=[ 146], 90.00th=[ 165], 95.00th=[ 190], | 99.00th=[ 249], 99.50th=[ 257], 99.90th=[ 292], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 111, max= 336, per=25.29%, avg=238.02, stdev=49.95, samples=42 iops : min= 27, max= 84, avg=59.05, stdev=12.59, samples=42 write: IOPS=60, BW=243KiB/s (249kB/s)(5180KiB/21308msec); 0 zone resets slat (usec): min=54, max=10147, avg=259.36, stdev=513.93 clat (msec): min=68, max=324, avg=130.24, stdev=33.49 lat (msec): min=69, max=324, avg=130.51, stdev=33.51 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 92], 10.00th=[ 99], 20.00th=[ 106], | 30.00th=[ 112], 40.00th=[ 117], 50.00th=[ 124], 60.00th=[ 131], | 70.00th=[ 140], 80.00th=[ 150], 90.00th=[ 169], 95.00th=[ 199], | 99.00th=[ 253], 99.50th=[ 262], 99.90th=[ 305], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 120, max= 350, per=24.90%, avg=243.76, stdev=53.85, samples=42 iops : min= 30, max= 87, avg=60.52, stdev=13.54, samples=42 lat (msec) : 50=0.08%, 100=16.29%, 250=82.66%, 500=0.98% cpu : usr=0.32%, sys=2.31%, ctx=4406, 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=941KiB/s (964kB/s), 235KiB/s-237KiB/s (240kB/s-243kB/s), io=19.6MiB (20.5MB), run=21163-21322msec WRITE: bw=980KiB/s (1003kB/s), 243KiB/s-249KiB/s (249kB/s-255kB/s), io=20.4MiB (21.4MB), run=21163-21322msec 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=185982: Wed May 27 05:53:05 2026 read: IOPS=1, BW=77.0MiB/s (81.8MB/s)(40.0MiB/513msec) slat (nsec): min=26934k, max=26934k, avg=26934486.00, stdev= 0.00 clat (nsec): min=455150k, max=455150k, avg=455149774.00, stdev= 0.00 lat (nsec): min=482089k, max=482089k, avg=482089418.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 456], | 70.00th=[ 456], 80.00th=[ 456], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.73%, ctx=5, majf=0, minf=10 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=77.0MiB/s (81.8MB/s), 77.0MiB/s-77.0MiB/s (81.8MB/s-81.8MB/s), io=40.0MiB (41.9MB), run=513-513msec 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