== sanity test 398c: run fio to test AIO ================= 19:50:20 (1786751420) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.8315 s, 50.4 MB/s osc.lustre-OST0000-osc-ffff9a6589427800.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=180338: Fri Aug 14 19:51:07 2026 write: IOPS=77, BW=309KiB/s (317kB/s)(10.0MiB/33119msec); 0 zone resets slat (usec): min=37, max=33147, avg=313.85, stdev=1057.81 clat (msec): min=31, max=440, avg=204.74, stdev=50.61 lat (msec): min=31, max=440, avg=205.06, stdev=50.67 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 136], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 271], 95.00th=[ 284], | 99.00th=[ 351], 99.50th=[ 422], 99.90th=[ 439], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 122, max= 478, per=24.84%, avg=307.08, stdev=72.50, samples=65 iops : min= 30, max= 119, avg=76.37, stdev=18.16, samples=65 lat (msec) : 50=0.08%, 100=0.16%, 250=80.66%, 500=19.10% cpu : usr=0.15%, sys=1.12%, ctx=2331, 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=180339: Fri Aug 14 19:51:07 2026 write: IOPS=78, BW=312KiB/s (319kB/s)(10.0MiB/32820msec); 0 zone resets slat (usec): min=36, max=19202, avg=298.16, stdev=957.54 clat (msec): min=35, max=412, avg=204.61, stdev=51.31 lat (msec): min=35, max=413, avg=204.91, stdev=51.32 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 188], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 368], 99.50th=[ 409], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 126, max= 494, per=25.13%, avg=310.62, stdev=73.82, samples=65 iops : min= 31, max= 123, avg=77.23, stdev=18.46, samples=65 lat (msec) : 50=0.04%, 100=0.70%, 250=79.69%, 500=19.57% cpu : usr=0.21%, sys=0.91%, ctx=2060, 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=180340: Fri Aug 14 19:51:07 2026 write: IOPS=77, BW=311KiB/s (318kB/s)(10.0MiB/32948msec); 0 zone resets slat (usec): min=37, max=19739, avg=297.52, stdev=1031.42 clat (msec): min=31, max=422, avg=204.49, stdev=52.37 lat (msec): min=31, max=422, avg=204.79, stdev=52.44 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 247], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 414], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 126, max= 479, per=25.10%, avg=310.22, stdev=64.92, samples=65 iops : min= 31, max= 119, avg=77.14, stdev=16.27, samples=65 lat (msec) : 50=0.12%, 100=0.70%, 250=80.70%, 500=18.48% cpu : usr=0.18%, sys=1.11%, ctx=2304, 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=180341: Fri Aug 14 19:51:07 2026 write: IOPS=77, BW=310KiB/s (317kB/s)(10.0MiB/33082msec); 0 zone resets slat (usec): min=35, max=17990, avg=272.07, stdev=791.25 clat (msec): min=47, max=436, avg=204.82, stdev=50.10 lat (msec): min=48, max=437, avg=205.09, stdev=50.11 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 133], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 188], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 245], 90.00th=[ 268], 95.00th=[ 288], | 99.00th=[ 342], 99.50th=[ 397], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 123, max= 510, per=24.91%, avg=307.83, stdev=70.77, samples=65 iops : min= 30, max= 127, avg=76.52, stdev=17.72, samples=65 lat (msec) : 50=0.04%, 100=0.04%, 250=83.87%, 500=16.05% cpu : usr=0.18%, sys=1.03%, ctx=2584, 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=1237KiB/s (1266kB/s), 309KiB/s-312KiB/s (317kB/s-319kB/s), io=40.0MiB (41.9MB), run=32820-33119msec 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=180356: Fri Aug 14 19:51:59 2026 read: IOPS=29, BW=119KiB/s (122kB/s)(5048KiB/42412msec) slat (msec): min=3, max=108, avg=18.85, stdev=10.43 clat (msec): min=87, max=502, avg=250.68, stdev=68.40 lat (msec): min=95, max=562, avg=269.54, stdev=71.11 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 150], 10.00th=[ 169], 20.00th=[ 194], | 30.00th=[ 209], 40.00th=[ 226], 50.00th=[ 243], 60.00th=[ 259], | 70.00th=[ 279], 80.00th=[ 309], 90.00th=[ 347], 95.00th=[ 372], | 99.00th=[ 443], 99.50th=[ 460], 99.90th=[ 498], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 47, max= 215, per=25.06%, avg=118.01, stdev=32.34, samples=84 iops : min= 11, max= 53, avg=29.01, stdev= 8.13, samples=84 write: IOPS=30, BW=122KiB/s (125kB/s)(5192KiB/42412msec); 0 zone resets slat (usec): min=40, max=19373, avg=475.41, stdev=1347.38 clat (msec): min=75, max=478, avg=257.65, stdev=63.85 lat (msec): min=76, max=478, avg=258.12, stdev=63.92 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 157], 10.00th=[ 176], 20.00th=[ 201], | 30.00th=[ 220], 40.00th=[ 241], 50.00th=[ 255], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 317], 90.00th=[ 347], 95.00th=[ 363], | 99.00th=[ 397], 99.50th=[ 430], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 47, max= 214, per=24.79%, avg=121.70, stdev=34.16, samples=84 iops : min= 11, max= 53, avg=29.94, stdev= 8.56, samples=84 lat (msec) : 100=0.16%, 250=50.27%, 500=49.53%, 750=0.04% cpu : usr=0.22%, sys=1.72%, ctx=4122, 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=180357: Fri Aug 14 19:51:59 2026 read: IOPS=29, BW=117KiB/s (120kB/s)(4976KiB/42444msec) slat (usec): min=3600, max=94540, avg=19415.59, stdev=10834.22 clat (msec): min=43, max=490, avg=250.34, stdev=66.69 lat (msec): min=57, max=522, avg=269.77, stdev=69.57 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 150], 10.00th=[ 171], 20.00th=[ 194], | 30.00th=[ 211], 40.00th=[ 228], 50.00th=[ 245], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 309], 90.00th=[ 342], 95.00th=[ 372], | 99.00th=[ 422], 99.50th=[ 443], 99.90th=[ 485], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 44, max= 199, per=24.68%, avg=116.25, stdev=33.35, samples=84 iops : min= 11, max= 49, avg=28.60, stdev= 8.35, samples=84 write: IOPS=31, BW=124KiB/s (127kB/s)(5264KiB/42444msec); 0 zone resets slat (usec): min=50, max=16011, avg=379.53, stdev=934.58 clat (msec): min=99, max=467, avg=257.95, stdev=63.30 lat (msec): min=99, max=467, avg=258.33, stdev=63.40 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 165], 10.00th=[ 180], 20.00th=[ 201], | 30.00th=[ 220], 40.00th=[ 239], 50.00th=[ 253], 60.00th=[ 268], | 70.00th=[ 288], 80.00th=[ 313], 90.00th=[ 347], 95.00th=[ 372], | 99.00th=[ 418], 99.50th=[ 430], 99.90th=[ 464], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 55, max= 199, per=25.15%, avg=123.48, stdev=34.81, samples=84 iops : min= 13, max= 49, avg=30.38, stdev= 8.74, samples=84 lat (msec) : 50=0.12%, 100=0.08%, 250=50.04%, 500=49.77% cpu : usr=0.25%, sys=1.79%, ctx=3742, 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=180358: Fri Aug 14 19:51:59 2026 read: IOPS=29, BW=118KiB/s (121kB/s)(4984KiB/42193msec) slat (usec): min=82, max=110658, avg=19369.96, stdev=10879.27 clat (msec): min=25, max=485, avg=247.86, stdev=66.61 lat (msec): min=27, max=501, avg=267.25, stdev=69.72 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 148], 10.00th=[ 171], 20.00th=[ 197], | 30.00th=[ 211], 40.00th=[ 226], 50.00th=[ 241], 60.00th=[ 257], | 70.00th=[ 275], 80.00th=[ 305], 90.00th=[ 338], 95.00th=[ 368], | 99.00th=[ 422], 99.50th=[ 443], 99.90th=[ 481], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 54, max= 230, per=25.05%, avg=118.00, stdev=34.58, samples=83 iops : min= 13, max= 57, avg=29.00, stdev= 8.67, samples=83 write: IOPS=31, BW=125KiB/s (128kB/s)(5256KiB/42193msec); 0 zone resets slat (usec): min=55, max=26319, avg=449.07, stdev=1302.25 clat (msec): min=89, max=467, avg=259.00, stdev=65.49 lat (msec): min=90, max=467, avg=259.45, stdev=65.49 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 161], 10.00th=[ 178], 20.00th=[ 201], | 30.00th=[ 220], 40.00th=[ 236], 50.00th=[ 253], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 321], 90.00th=[ 351], 95.00th=[ 376], | 99.00th=[ 414], 99.50th=[ 430], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 55, max= 223, per=25.22%, avg=123.81, stdev=35.31, samples=83 iops : min= 13, max= 55, avg=30.47, stdev= 8.84, samples=83 lat (msec) : 50=0.20%, 100=0.08%, 250=52.07%, 500=47.66% cpu : usr=0.27%, sys=1.81%, ctx=3985, 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=180359: Fri Aug 14 19:51:59 2026 read: IOPS=29, BW=119KiB/s (122kB/s)(5060KiB/42517msec) slat (usec): min=3372, max=92255, avg=19956.14, stdev=11165.82 clat (msec): min=24, max=472, avg=250.01, stdev=65.73 lat (msec): min=43, max=516, avg=269.98, stdev=68.59 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 150], 10.00th=[ 171], 20.00th=[ 194], | 30.00th=[ 213], 40.00th=[ 228], 50.00th=[ 245], 60.00th=[ 264], | 70.00th=[ 284], 80.00th=[ 305], 90.00th=[ 342], 95.00th=[ 368], | 99.00th=[ 405], 99.50th=[ 426], 99.90th=[ 464], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 37, max= 190, per=25.09%, avg=118.17, stdev=33.73, samples=84 iops : min= 9, max= 47, avg=29.05, stdev= 8.43, samples=84 write: IOPS=30, BW=122KiB/s (125kB/s)(5180KiB/42517msec); 0 zone resets slat (usec): min=43, max=21669, avg=467.86, stdev=1393.83 clat (msec): min=43, max=493, avg=257.95, stdev=66.19 lat (msec): min=44, max=493, avg=258.42, stdev=66.26 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 157], 10.00th=[ 174], 20.00th=[ 201], | 30.00th=[ 220], 40.00th=[ 236], 50.00th=[ 253], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 317], 90.00th=[ 347], 95.00th=[ 372], | 99.00th=[ 414], 99.50th=[ 443], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 55, max= 192, per=24.54%, avg=120.49, stdev=32.02, samples=84 iops : min= 13, max= 48, avg=29.64, stdev= 8.03, samples=84 lat (msec) : 50=0.23%, 100=0.27%, 250=50.00%, 500=49.49% cpu : usr=0.28%, sys=2.03%, ctx=4246, 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=472KiB/s (483kB/s), 117KiB/s-119KiB/s (120kB/s-122kB/s), io=19.6MiB (20.5MB), run=42193-42517msec WRITE: bw=491KiB/s (503kB/s), 122KiB/s-125KiB/s (125kB/s-128kB/s), io=20.4MiB (21.4MB), run=42193-42517msec 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=180371: Fri Aug 14 19:52:12 2026 read: IOPS=1, BW=51.3MiB/s (53.8MB/s)(40.0MiB/780msec) slat (nsec): min=68501k, max=68501k, avg=68500588.00, stdev= 0.00 clat (nsec): min=694314k, max=694314k, avg=694313856.00, stdev= 0.00 lat (nsec): min=762818k, max=762818k, avg=762818357.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.67%, ctx=7, 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=51.3MiB/s (53.8MB/s), 51.3MiB/s-51.3MiB/s (53.8MB/s-53.8MB/s), io=40.0MiB (41.9MB), run=780-780msec 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