== sanity test 398c: run fio to test AIO ================= 10:19:39 (1786717179) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.547555 s, 76.6 MB/s osc.lustre-OST0000-osc-ffff8912433bc000.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=179705: Fri Aug 14 10:20:22 2026 write: IOPS=86, BW=348KiB/s (356kB/s)(10.0MiB/29441msec); 0 zone resets slat (usec): min=51, max=18367, avg=348.78, stdev=970.29 clat (msec): min=20, max=372, avg=182.88, stdev=35.96 lat (msec): min=20, max=372, avg=183.23, stdev=35.93 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 136], 10.00th=[ 144], 20.00th=[ 155], | 30.00th=[ 163], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 228], 95.00th=[ 247], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 305], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 253, max= 448, per=25.01%, avg=347.66, stdev=49.58, samples=58 iops : min= 63, max= 112, avg=86.48, stdev=12.37, samples=58 lat (msec) : 50=0.08%, 100=0.35%, 250=95.39%, 500=4.18% cpu : usr=0.19%, sys=1.43%, ctx=2723, 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=179706: Fri Aug 14 10:20:22 2026 write: IOPS=86, BW=348KiB/s (356kB/s)(10.0MiB/29457msec); 0 zone resets slat (usec): min=37, max=13894, avg=353.87, stdev=959.81 clat (msec): min=20, max=308, avg=182.70, stdev=35.88 lat (msec): min=20, max=308, avg=183.06, stdev=35.86 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 136], 10.00th=[ 144], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 171], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 213], 90.00th=[ 228], 95.00th=[ 249], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 309] bw ( KiB/s): min= 248, max= 500, per=24.95%, avg=346.84, stdev=59.54, samples=58 iops : min= 62, max= 125, avg=86.31, stdev=14.89, samples=58 lat (msec) : 50=0.20%, 100=0.31%, 250=94.61%, 500=4.88% cpu : usr=0.22%, sys=1.18%, ctx=2870, 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=179707: Fri Aug 14 10:20:22 2026 write: IOPS=87, BW=349KiB/s (358kB/s)(10.0MiB/29315msec); 0 zone resets slat (usec): min=54, max=14694, avg=352.79, stdev=1014.03 clat (msec): min=27, max=382, avg=182.58, stdev=35.97 lat (msec): min=28, max=383, avg=182.94, stdev=36.00 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 133], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 209], 90.00th=[ 228], 95.00th=[ 249], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 215, max= 463, per=25.10%, avg=348.95, stdev=53.37, samples=58 iops : min= 53, max= 115, avg=86.81, stdev=13.37, samples=58 lat (msec) : 50=0.04%, 100=0.23%, 250=95.47%, 500=4.26% cpu : usr=0.16%, sys=1.32%, ctx=2817, 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=179708: Fri Aug 14 10:20:22 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29332msec); 0 zone resets slat (usec): min=50, max=19963, avg=315.10, stdev=886.01 clat (msec): min=30, max=422, avg=182.17, stdev=36.49 lat (msec): min=30, max=422, avg=182.49, stdev=36.45 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 224], 95.00th=[ 253], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 422] bw ( KiB/s): min= 228, max= 477, per=25.18%, avg=349.95, stdev=57.79, samples=57 iops : min= 57, max= 119, avg=87.07, stdev=14.46, samples=57 lat (msec) : 50=0.08%, 250=94.38%, 500=5.55% cpu : usr=0.16%, sys=1.07%, ctx=2143, 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=1391KiB/s (1424kB/s), 348KiB/s-349KiB/s (356kB/s-358kB/s), io=40.0MiB (41.9MB), run=29315-29457msec 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=179723: Fri Aug 14 10:21:09 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(5048KiB/35409msec) slat (usec): min=2676, max=67144, avg=15853.44, stdev=9113.21 clat (msec): min=91, max=461, avg=209.35, stdev=58.45 lat (msec): min=107, max=486, avg=225.21, stdev=61.18 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 230], 80.00th=[ 253], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 388], 99.50th=[ 401], 99.90th=[ 460], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 39, max= 215, per=25.05%, avg=141.77, stdev=37.29, samples=70 iops : min= 9, max= 53, avg=34.97, stdev= 9.43, samples=70 write: IOPS=36, BW=147KiB/s (150kB/s)(5192KiB/35409msec); 0 zone resets slat (usec): min=54, max=22216, avg=343.29, stdev=1038.63 clat (msec): min=111, max=446, avg=214.71, stdev=56.43 lat (msec): min=111, max=446, avg=215.06, stdev=56.47 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 140], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 236], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 405], 99.50th=[ 426], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 71, max= 230, per=24.76%, avg=146.06, stdev=41.72, samples=70 iops : min= 17, max= 57, avg=36.04, stdev=10.51, samples=70 lat (msec) : 100=0.12%, 250=77.27%, 500=22.62% cpu : usr=0.21%, sys=1.82%, ctx=4378, 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=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=179724: Fri Aug 14 10:21:09 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(4976KiB/35409msec) slat (usec): min=3360, max=95859, avg=15817.21, stdev=9320.90 clat (msec): min=25, max=483, avg=208.66, stdev=56.32 lat (msec): min=31, max=504, avg=224.49, stdev=58.84 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 134], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 232], 80.00th=[ 253], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 363], 99.50th=[ 384], 99.90th=[ 447], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 63, max= 264, per=24.66%, avg=139.57, stdev=36.78, samples=70 iops : min= 15, max= 66, avg=34.41, stdev= 9.27, samples=70 write: IOPS=37, BW=149KiB/s (152kB/s)(5264KiB/35409msec); 0 zone resets slat (usec): min=57, max=14101, avg=351.57, stdev=903.17 clat (msec): min=51, max=456, avg=215.58, stdev=56.24 lat (msec): min=54, max=456, avg=215.93, stdev=56.25 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 236], 80.00th=[ 257], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 388], 99.50th=[ 401], 99.90th=[ 439], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 63, max= 216, per=25.14%, avg=148.33, stdev=40.22, samples=70 iops : min= 15, max= 54, avg=36.60, stdev=10.17, samples=70 lat (msec) : 50=0.04%, 100=0.35%, 250=77.54%, 500=22.07% cpu : usr=0.21%, sys=1.78%, ctx=4496, 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=179725: Fri Aug 14 10:21:09 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(4984KiB/35223msec) slat (usec): min=87, max=71405, avg=15863.38, stdev=9326.63 clat (msec): min=13, max=507, avg=206.91, stdev=57.87 lat (msec): min=13, max=517, avg=222.78, stdev=60.61 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 249], 90.00th=[ 284], 95.00th=[ 317], | 99.00th=[ 376], 99.50th=[ 393], 99.90th=[ 447], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 71, max= 272, per=25.09%, avg=142.01, stdev=38.63, samples=69 iops : min= 17, max= 68, avg=35.01, stdev= 9.79, samples=69 write: IOPS=37, BW=149KiB/s (153kB/s)(5256KiB/35223msec); 0 zone resets slat (usec): min=57, max=11958, avg=387.83, stdev=990.97 clat (msec): min=86, max=517, avg=216.61, stdev=57.36 lat (msec): min=90, max=517, avg=217.00, stdev=57.37 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 142], 10.00th=[ 153], 20.00th=[ 171], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 376], 99.50th=[ 435], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 63, max= 223, per=25.28%, avg=149.13, stdev=34.92, samples=69 iops : min= 15, max= 55, avg=36.83, stdev= 8.79, samples=69 lat (msec) : 20=0.04%, 50=0.08%, 100=0.31%, 250=78.20%, 500=21.17% lat (msec) : 750=0.20% cpu : usr=0.28%, sys=1.85%, ctx=4327, 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=179726: Fri Aug 14 10:21:09 2026 read: IOPS=35, BW=144KiB/s (147kB/s)(5060KiB/35245msec) slat (usec): min=61, max=58615, avg=15546.95, stdev=9056.62 clat (msec): min=13, max=528, avg=206.24, stdev=58.10 lat (msec): min=28, max=542, avg=221.80, stdev=60.56 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 186], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 249], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 397], 99.50th=[ 414], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 55, max= 256, per=25.49%, avg=144.29, stdev=41.12, samples=69 iops : min= 13, max= 64, avg=35.59, stdev=10.40, samples=69 write: IOPS=36, BW=147KiB/s (150kB/s)(5180KiB/35245msec); 0 zone resets slat (usec): min=55, max=19864, avg=386.15, stdev=1214.48 clat (msec): min=31, max=542, avg=216.33, stdev=58.22 lat (msec): min=31, max=542, avg=216.72, stdev=58.18 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 262], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 388], 99.50th=[ 426], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 79, max= 231, per=24.91%, avg=146.99, stdev=33.91, samples=69 iops : min= 19, max= 57, avg=36.26, stdev= 8.59, samples=69 lat (msec) : 20=0.08%, 50=0.08%, 100=0.27%, 250=77.54%, 500=21.84% lat (msec) : 750=0.20% cpu : usr=0.28%, sys=1.87%, ctx=4461, 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=567KiB/s (580kB/s), 141KiB/s-144KiB/s (144kB/s-147kB/s), io=19.6MiB (20.5MB), run=35223-35409msec WRITE: bw=590KiB/s (604kB/s), 147KiB/s-149KiB/s (150kB/s-153kB/s), io=20.4MiB (21.4MB), run=35223-35409msec 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=179736: Fri Aug 14 10:21:24 2026 read: IOPS=1, BW=45.1MiB/s (47.3MB/s)(40.0MiB/886msec) slat (nsec): min=68264k, max=68264k, avg=68264289.00, stdev= 0.00 clat (nsec): min=765480k, max=765480k, avg=765479511.00, stdev= 0.00 lat (nsec): min=833749k, max=833749k, avg=833749040.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=2.03%, ctx=5, majf=0, minf=9 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=45.1MiB/s (47.3MB/s), 45.1MiB/s-45.1MiB/s (47.3MB/s-47.3MB/s), io=40.0MiB (41.9MB), run=886-886msec 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