== sanity test 398c: run fio to test AIO ================= 17:28:06 (1789680486) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.470134 s, 89.2 MB/s osc.lustre-OST0000-osc-ffff92cff22bf800.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=180471: Thu Sep 17 17:28:40 2026 write: IOPS=97, BW=391KiB/s (400kB/s)(10.0MiB/26205msec); 0 zone resets slat (usec): min=25, max=13646, avg=247.53, stdev=754.96 clat (msec): min=16, max=335, avg=162.67, stdev=45.59 lat (msec): min=17, max=335, avg=162.92, stdev=45.57 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 96], 10.00th=[ 106], 20.00th=[ 126], | 30.00th=[ 136], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 228], 95.00th=[ 247], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 334] bw ( KiB/s): min= 174, max= 591, per=24.85%, avg=388.35, stdev=86.75, samples=52 iops : min= 43, max= 147, avg=96.69, stdev=21.73, samples=52 lat (msec) : 20=0.04%, 50=0.35%, 100=6.95%, 250=88.63%, 500=4.02% cpu : usr=0.18%, sys=1.10%, ctx=2826, 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=180472: Thu Sep 17 17:28:40 2026 write: IOPS=98, BW=394KiB/s (403kB/s)(10.0MiB/26002msec); 0 zone resets slat (usec): min=21, max=11122, avg=270.55, stdev=826.82 clat (msec): min=19, max=349, avg=162.04, stdev=47.35 lat (msec): min=20, max=349, avg=162.32, stdev=47.34 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 94], 10.00th=[ 104], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 351] bw ( KiB/s): min= 253, max= 776, per=25.14%, avg=392.92, stdev=99.69, samples=51 iops : min= 63, max= 194, avg=97.88, stdev=24.98, samples=51 lat (msec) : 20=0.04%, 50=0.62%, 100=7.23%, 250=87.70%, 500=4.41% cpu : usr=0.27%, sys=1.02%, ctx=2883, 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=180473: Thu Sep 17 17:28:40 2026 write: IOPS=97, BW=392KiB/s (401kB/s)(10.0MiB/26138msec); 0 zone resets slat (usec): min=25, max=11710, avg=231.52, stdev=694.18 clat (msec): min=15, max=332, avg=162.31, stdev=46.28 lat (msec): min=15, max=333, avg=162.55, stdev=46.29 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 96], 10.00th=[ 107], 20.00th=[ 124], | 30.00th=[ 138], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 226], 95.00th=[ 249], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 334] bw ( KiB/s): min= 198, max= 573, per=24.89%, avg=389.10, stdev=87.69, samples=51 iops : min= 49, max= 143, avg=96.92, stdev=21.94, samples=51 lat (msec) : 20=0.04%, 50=0.39%, 100=5.90%, 250=88.79%, 500=4.88% cpu : usr=0.19%, sys=1.03%, ctx=2507, 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=180474: Thu Sep 17 17:28:40 2026 write: IOPS=97, BW=392KiB/s (401kB/s)(10.0MiB/26155msec); 0 zone resets slat (usec): min=28, max=13197, avg=240.26, stdev=679.17 clat (msec): min=14, max=320, avg=162.55, stdev=47.15 lat (msec): min=15, max=320, avg=162.80, stdev=47.14 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 97], 10.00th=[ 105], 20.00th=[ 124], | 30.00th=[ 136], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 232], 95.00th=[ 249], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 206, max= 615, per=25.06%, avg=391.63, stdev=90.82, samples=51 iops : min= 51, max= 153, avg=97.53, stdev=22.71, samples=51 lat (msec) : 20=0.04%, 50=0.39%, 100=5.78%, 250=89.22%, 500=4.57% cpu : usr=0.23%, sys=1.15%, ctx=2945, 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=1563KiB/s (1601kB/s), 391KiB/s-394KiB/s (400kB/s-403kB/s), io=40.0MiB (41.9MB), run=26002-26205msec 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=180487: Thu Sep 17 17:29:16 2026 read: IOPS=43, BW=175KiB/s (180kB/s)(5048KiB/28778msec) slat (msec): min=2, max=198, avg=12.13, stdev= 7.94 clat (msec): min=83, max=382, avg=170.23, stdev=39.40 lat (msec): min=94, max=386, avg=182.37, stdev=40.61 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 115], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 239], | 99.00th=[ 284], 99.50th=[ 300], 99.90th=[ 368], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 98, max= 223, per=25.03%, avg=174.49, stdev=27.58, samples=57 iops : min= 24, max= 55, avg=43.18, stdev= 6.92, samples=57 write: IOPS=45, BW=180KiB/s (185kB/s)(5192KiB/28778msec); 0 zone resets slat (usec): min=28, max=7360, avg=218.15, stdev=486.08 clat (msec): min=38, max=368, avg=174.19, stdev=37.78 lat (msec): min=38, max=368, avg=174.41, stdev=37.77 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 241], | 99.00th=[ 288], 99.50th=[ 338], 99.90th=[ 363], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 95, max= 292, per=24.82%, avg=179.93, stdev=40.05, samples=57 iops : min= 23, max= 73, avg=44.53, stdev=10.02, samples=57 lat (msec) : 50=0.08%, 100=0.78%, 250=95.94%, 500=3.20% cpu : usr=0.26%, sys=1.88%, ctx=4385, 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=180488: Thu Sep 17 17:29:16 2026 read: IOPS=43, BW=174KiB/s (178kB/s)(4976KiB/28600msec) slat (usec): min=2649, max=42579, avg=12131.66, stdev=6011.44 clat (msec): min=25, max=331, avg=169.18, stdev=38.40 lat (msec): min=37, max=338, avg=181.32, stdev=39.55 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 113], 10.00th=[ 123], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 326], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 95, max= 237, per=24.83%, avg=173.04, stdev=37.66, samples=56 iops : min= 23, max= 59, avg=42.79, stdev= 9.48, samples=56 write: IOPS=46, BW=184KiB/s (188kB/s)(5264KiB/28600msec); 0 zone resets slat (usec): min=30, max=10642, avg=232.48, stdev=604.23 clat (msec): min=50, max=320, avg=173.99, stdev=36.33 lat (msec): min=50, max=320, avg=174.23, stdev=36.34 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 124], 10.00th=[ 132], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 239], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 309], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 119, max= 260, per=25.42%, avg=184.32, stdev=34.64, samples=56 iops : min= 29, max= 65, avg=45.62, stdev= 8.64, samples=56 lat (msec) : 50=0.04%, 100=1.09%, 250=95.35%, 500=3.52% cpu : usr=0.30%, sys=1.69%, ctx=4590, 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=180489: Thu Sep 17 17:29:16 2026 read: IOPS=43, BW=173KiB/s (177kB/s)(4984KiB/28779msec) slat (usec): min=3194, max=45388, avg=11907.50, stdev=6033.89 clat (msec): min=10, max=307, avg=169.59, stdev=37.66 lat (msec): min=38, max=317, avg=181.50, stdev=38.91 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 115], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 268], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 97, max= 256, per=24.81%, avg=172.93, stdev=34.67, samples=57 iops : min= 24, max= 64, avg=42.81, stdev= 8.68, samples=57 write: IOPS=45, BW=183KiB/s (187kB/s)(5256KiB/28779msec); 0 zone resets slat (usec): min=34, max=11861, avg=230.12, stdev=616.65 clat (msec): min=89, max=330, avg=175.29, stdev=35.86 lat (msec): min=89, max=330, avg=175.53, stdev=35.84 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 126], 10.00th=[ 134], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 317], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 103, max= 253, per=25.02%, avg=181.42, stdev=40.20, samples=57 iops : min= 25, max= 63, avg=44.91, stdev=10.05, samples=57 lat (msec) : 20=0.04%, 50=0.04%, 100=0.59%, 250=95.98%, 500=3.36% cpu : usr=0.22%, sys=1.71%, ctx=4751, 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=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=180490: Thu Sep 17 17:29:16 2026 read: IOPS=44, BW=177KiB/s (181kB/s)(5060KiB/28579msec) slat (usec): min=46, max=59044, avg=12040.78, stdev=6206.01 clat (msec): min=11, max=323, avg=171.15, stdev=40.13 lat (msec): min=11, max=341, avg=183.20, stdev=41.36 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 113], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 247], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 111, max= 292, per=25.38%, avg=176.93, stdev=33.51, samples=56 iops : min= 27, max= 73, avg=43.77, stdev= 8.42, samples=56 write: IOPS=45, BW=181KiB/s (186kB/s)(5180KiB/28579msec); 0 zone resets slat (usec): min=34, max=8431, avg=248.13, stdev=646.06 clat (msec): min=89, max=318, avg=173.46, stdev=35.46 lat (msec): min=90, max=318, avg=173.72, stdev=35.45 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 125], 10.00th=[ 133], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 218], 95.00th=[ 239], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 87, max= 278, per=24.93%, avg=180.71, stdev=39.11, samples=56 iops : min= 21, max= 69, avg=44.70, stdev= 9.80, samples=56 lat (msec) : 20=0.16%, 50=0.04%, 100=0.86%, 250=95.59%, 500=3.36% cpu : usr=0.29%, sys=1.78%, ctx=4777, majf=0, minf=15 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=697KiB/s (714kB/s), 173KiB/s-177KiB/s (177kB/s-181kB/s), io=19.6MiB (20.5MB), run=28579-28779msec WRITE: bw=726KiB/s (743kB/s), 180KiB/s-184KiB/s (185kB/s-188kB/s), io=20.4MiB (21.4MB), run=28579-28779msec 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=180498: Thu Sep 17 17:29:24 2026 read: IOPS=2, BW=93.9MiB/s (98.5MB/s)(40.0MiB/426msec) slat (nsec): min=32180k, max=32180k, avg=32179802.00, stdev= 0.00 clat (nsec): min=366624k, max=366624k, avg=366623628.00, stdev= 0.00 lat (nsec): min=398808k, max=398808k, avg=398808081.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.82%, ctx=3, 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=93.9MiB/s (98.5MB/s), 93.9MiB/s-93.9MiB/s (98.5MB/s-98.5MB/s), io=40.0MiB (41.9MB), run=426-426msec 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