== sanity test 398c: run fio to test AIO ================= 10:16:03 (1788185763) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.469827 s, 89.3 MB/s osc.lustre-OST0000-osc-ffff9dcac7d1a800.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=179391: Mon Aug 31 10:16:37 2026 write: IOPS=103, BW=415KiB/s (425kB/s)(10.0MiB/24697msec); 0 zone resets slat (usec): min=40, max=11535, avg=252.46, stdev=640.51 clat (msec): min=18, max=340, avg=153.11, stdev=46.48 lat (msec): min=19, max=340, avg=153.36, stdev=46.48 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 87], 10.00th=[ 94], 20.00th=[ 112], | 30.00th=[ 125], 40.00th=[ 140], 50.00th=[ 150], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 190], 90.00th=[ 213], 95.00th=[ 236], | 99.00th=[ 284], 99.50th=[ 326], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 255, max= 744, per=24.91%, avg=412.96, stdev=110.66, samples=49 iops : min= 63, max= 186, avg=102.94, stdev=27.77, samples=49 lat (msec) : 20=0.04%, 100=13.44%, 250=83.87%, 500=2.66% cpu : usr=0.19%, sys=1.25%, ctx=2747, 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=179392: Mon Aug 31 10:16:37 2026 write: IOPS=103, BW=416KiB/s (426kB/s)(10.0MiB/24623msec); 0 zone resets slat (usec): min=38, max=16830, avg=272.83, stdev=727.09 clat (msec): min=22, max=351, avg=153.38, stdev=46.76 lat (msec): min=23, max=351, avg=153.66, stdev=46.76 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 88], 10.00th=[ 96], 20.00th=[ 113], | 30.00th=[ 125], 40.00th=[ 138], 50.00th=[ 153], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 188], 90.00th=[ 211], 95.00th=[ 230], | 99.00th=[ 292], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 199, max= 760, per=24.92%, avg=413.17, stdev=116.24, samples=48 iops : min= 49, max= 190, avg=102.98, stdev=29.16, samples=48 lat (msec) : 50=0.12%, 100=13.44%, 250=83.36%, 500=3.09% cpu : usr=0.17%, sys=1.29%, ctx=2819, 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=179393: Mon Aug 31 10:16:37 2026 write: IOPS=103, BW=415KiB/s (425kB/s)(10.0MiB/24697msec); 0 zone resets slat (usec): min=36, max=17934, avg=287.28, stdev=789.39 clat (msec): min=17, max=349, avg=152.99, stdev=46.99 lat (msec): min=18, max=350, avg=153.28, stdev=47.00 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 87], 10.00th=[ 96], 20.00th=[ 110], | 30.00th=[ 124], 40.00th=[ 136], 50.00th=[ 153], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 230], | 99.00th=[ 292], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 175, max= 752, per=24.93%, avg=413.39, stdev=123.18, samples=49 iops : min= 43, max= 188, avg=103.04, stdev=30.92, samples=49 lat (msec) : 20=0.04%, 50=0.31%, 100=13.79%, 250=82.73%, 500=3.12% cpu : usr=0.14%, sys=1.25%, ctx=2892, 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=179394: Mon Aug 31 10:16:37 2026 write: IOPS=103, BW=415KiB/s (425kB/s)(10.0MiB/24683msec); 0 zone resets slat (usec): min=35, max=18539, avg=263.71, stdev=759.20 clat (msec): min=38, max=335, avg=153.22, stdev=47.23 lat (msec): min=40, max=335, avg=153.49, stdev=47.22 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 86], 10.00th=[ 95], 20.00th=[ 111], | 30.00th=[ 124], 40.00th=[ 138], 50.00th=[ 150], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 215], 95.00th=[ 230], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 255, max= 768, per=24.91%, avg=412.98, stdev=114.07, samples=49 iops : min= 63, max= 192, avg=102.94, stdev=28.61, samples=49 lat (msec) : 50=0.08%, 100=14.18%, 250=82.81%, 500=2.93% cpu : usr=0.28%, sys=1.18%, ctx=2325, 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 Run status group 0 (all jobs): WRITE: bw=1659KiB/s (1698kB/s), 415KiB/s-416KiB/s (425kB/s-426kB/s), io=40.0MiB (41.9MB), run=24623-24697msec 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=179407: Mon Aug 31 10:17:17 2026 read: IOPS=37, BW=151KiB/s (154kB/s)(5048KiB/33514msec) slat (usec): min=2263, max=66420, avg=14878.79, stdev=9182.16 clat (msec): min=49, max=486, avg=197.78, stdev=69.42 lat (msec): min=64, max=505, avg=212.67, stdev=73.36 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 96], 10.00th=[ 113], 20.00th=[ 136], | 30.00th=[ 153], 40.00th=[ 174], 50.00th=[ 192], 60.00th=[ 211], | 70.00th=[ 234], 80.00th=[ 255], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 380], 99.50th=[ 405], 99.90th=[ 460], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 39, max= 328, per=25.07%, avg=149.92, stdev=51.36, samples=66 iops : min= 9, max= 82, avg=37.11, stdev=12.91, samples=66 write: IOPS=38, BW=155KiB/s (159kB/s)(5192KiB/33514msec); 0 zone resets slat (usec): min=52, max=19713, avg=282.44, stdev=834.50 clat (msec): min=66, max=498, avg=204.43, stdev=69.39 lat (msec): min=66, max=498, avg=204.71, stdev=69.40 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 104], 10.00th=[ 117], 20.00th=[ 140], | 30.00th=[ 161], 40.00th=[ 180], 50.00th=[ 201], 60.00th=[ 220], | 70.00th=[ 236], 80.00th=[ 257], 90.00th=[ 300], 95.00th=[ 334], | 99.00th=[ 380], 99.50th=[ 409], 99.90th=[ 456], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 55, max= 272, per=24.76%, avg=154.23, stdev=53.09, samples=66 iops : min= 13, max= 68, avg=38.17, stdev=13.32, samples=66 lat (msec) : 50=0.04%, 100=4.92%, 250=72.58%, 500=22.46% cpu : usr=0.21%, sys=1.67%, ctx=4307, 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=179408: Mon Aug 31 10:17:17 2026 read: IOPS=37, BW=151KiB/s (154kB/s)(4976KiB/33006msec) slat (usec): min=49, max=75892, avg=14732.01, stdev=9370.83 clat (msec): min=27, max=473, avg=194.68, stdev=71.98 lat (msec): min=27, max=491, avg=209.41, stdev=76.29 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 94], 10.00th=[ 110], 20.00th=[ 129], | 30.00th=[ 148], 40.00th=[ 169], 50.00th=[ 192], 60.00th=[ 209], | 70.00th=[ 228], 80.00th=[ 251], 90.00th=[ 292], 95.00th=[ 326], | 99.00th=[ 401], 99.50th=[ 418], 99.90th=[ 460], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 54, max= 317, per=25.04%, avg=149.72, stdev=56.74, samples=65 iops : min= 13, max= 79, avg=37.03, stdev=14.23, samples=65 write: IOPS=39, BW=159KiB/s (163kB/s)(5264KiB/33006msec); 0 zone resets slat (usec): min=46, max=17988, avg=293.79, stdev=867.41 clat (msec): min=44, max=480, avg=202.55, stdev=70.70 lat (msec): min=44, max=480, avg=202.85, stdev=70.73 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 136], | 30.00th=[ 157], 40.00th=[ 182], 50.00th=[ 199], 60.00th=[ 215], | 70.00th=[ 239], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 388], 99.50th=[ 435], 99.90th=[ 472], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 56, max= 323, per=25.51%, avg=158.91, stdev=57.04, samples=65 iops : min= 14, max= 80, avg=39.34, stdev=14.33, samples=65 lat (msec) : 50=0.23%, 100=5.16%, 250=72.11%, 500=22.50% cpu : usr=0.25%, sys=1.81%, ctx=4361, 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=179409: Mon Aug 31 10:17:17 2026 read: IOPS=37, BW=149KiB/s (152kB/s)(4984KiB/33500msec) slat (usec): min=2621, max=66744, avg=14740.26, stdev=9108.88 clat (msec): min=45, max=505, avg=197.23, stdev=69.60 lat (msec): min=57, max=526, avg=211.97, stdev=73.58 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 96], 10.00th=[ 114], 20.00th=[ 136], | 30.00th=[ 153], 40.00th=[ 174], 50.00th=[ 190], 60.00th=[ 211], | 70.00th=[ 230], 80.00th=[ 255], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 388], 99.50th=[ 435], 99.90th=[ 498], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 47, max= 288, per=24.82%, avg=148.41, stdev=53.35, samples=66 iops : min= 11, max= 72, avg=36.74, stdev=13.40, samples=66 write: IOPS=39, BW=157KiB/s (161kB/s)(5256KiB/33500msec); 0 zone resets slat (usec): min=39, max=19538, avg=294.21, stdev=874.13 clat (msec): min=62, max=505, avg=205.28, stdev=71.73 lat (msec): min=62, max=505, avg=205.57, stdev=71.80 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 106], 10.00th=[ 118], 20.00th=[ 142], | 30.00th=[ 161], 40.00th=[ 182], 50.00th=[ 201], 60.00th=[ 218], | 70.00th=[ 234], 80.00th=[ 257], 90.00th=[ 300], 95.00th=[ 334], | 99.00th=[ 409], 99.50th=[ 447], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 55, max= 320, per=25.02%, avg=155.86, stdev=53.03, samples=66 iops : min= 13, max= 80, avg=38.56, stdev=13.36, samples=66 lat (msec) : 50=0.04%, 100=4.84%, 250=72.70%, 500=22.27%, 750=0.16% cpu : usr=0.24%, sys=1.83%, ctx=4222, 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=179410: Mon Aug 31 10:17:17 2026 read: IOPS=37, BW=151KiB/s (155kB/s)(5060KiB/33496msec) slat (usec): min=2836, max=65052, avg=14586.09, stdev=8839.74 clat (msec): min=57, max=474, avg=198.36, stdev=69.28 lat (msec): min=64, max=482, avg=212.95, stdev=72.89 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 99], 10.00th=[ 114], 20.00th=[ 134], | 30.00th=[ 153], 40.00th=[ 174], 50.00th=[ 192], 60.00th=[ 213], | 70.00th=[ 234], 80.00th=[ 257], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 409], 99.90th=[ 447], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 55, max= 296, per=25.13%, avg=150.29, stdev=49.04, samples=66 iops : min= 13, max= 74, avg=37.17, stdev=12.32, samples=66 write: IOPS=38, BW=155KiB/s (158kB/s)(5180KiB/33496msec); 0 zone resets slat (usec): min=39, max=25970, avg=281.32, stdev=946.74 clat (msec): min=71, max=444, avg=203.77, stdev=70.14 lat (msec): min=71, max=444, avg=204.05, stdev=70.22 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 106], 10.00th=[ 121], 20.00th=[ 138], | 30.00th=[ 155], 40.00th=[ 178], 50.00th=[ 201], 60.00th=[ 220], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 401], 99.50th=[ 418], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 46, max= 276, per=24.72%, avg=154.00, stdev=52.97, samples=66 iops : min= 11, max= 69, avg=38.11, stdev=13.32, samples=66 lat (msec) : 100=4.57%, 250=71.88%, 500=23.55% cpu : usr=0.26%, sys=1.81%, ctx=4413, 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=599KiB/s (613kB/s), 149KiB/s-151KiB/s (152kB/s-155kB/s), io=19.6MiB (20.5MB), run=33006-33514msec WRITE: bw=623KiB/s (638kB/s), 155KiB/s-159KiB/s (158kB/s-163kB/s), io=20.4MiB (21.4MB), run=33006-33514msec 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=179419: Mon Aug 31 10:17:27 2026 read: IOPS=1, BW=55.1MiB/s (57.8MB/s)(40.0MiB/726msec) slat (nsec): min=49029k, max=49029k, avg=49029479.00, stdev= 0.00 clat (nsec): min=639828k, max=639828k, avg=639827854.00, stdev= 0.00 lat (nsec): min=688863k, max=688863k, avg=688863352.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=0.14%, ctx=7, 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=55.1MiB/s (57.8MB/s), 55.1MiB/s-55.1MiB/s (57.8MB/s-57.8MB/s), io=40.0MiB (41.9MB), run=726-726msec 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