== sanity test 398c: run fio to test AIO ================= 02:17:39 (1788934659) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.49414 s, 84.9 MB/s osc.lustre-OST0000-osc-ffff8ee505b8f800.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=180472: Wed Sep 9 02:18:18 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29538msec); 0 zone resets slat (usec): min=28, max=14475, avg=191.42, stdev=738.45 clat (msec): min=21, max=376, avg=183.74, stdev=45.61 lat (msec): min=22, max=376, avg=183.93, stdev=45.66 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 245], 95.00th=[ 271], | 99.00th=[ 338], 99.50th=[ 342], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 376] bw ( KiB/s): min= 190, max= 512, per=24.93%, avg=345.57, stdev=69.12, samples=58 iops : min= 47, max= 128, avg=85.98, stdev=17.32, samples=58 lat (msec) : 50=0.20%, 100=0.35%, 250=90.08%, 500=9.38% cpu : usr=0.21%, sys=0.88%, ctx=2820, 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=180473: Wed Sep 9 02:18:18 2026 write: IOPS=86, BW=347KiB/s (356kB/s)(10.0MiB/29488msec); 0 zone resets slat (usec): min=21, max=15052, avg=168.00, stdev=665.44 clat (msec): min=26, max=393, avg=183.57, stdev=46.29 lat (msec): min=26, max=393, avg=183.74, stdev=46.31 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 249], 95.00th=[ 268], | 99.00th=[ 313], 99.50th=[ 359], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 167, max= 520, per=24.92%, avg=345.34, stdev=67.90, samples=58 iops : min= 41, max= 130, avg=85.91, stdev=17.06, samples=58 lat (msec) : 50=0.04%, 100=0.62%, 250=89.73%, 500=9.61% cpu : usr=0.14%, sys=0.77%, ctx=2333, 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=180474: Wed Sep 9 02:18:18 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29537msec); 0 zone resets slat (usec): min=28, max=16495, avg=223.60, stdev=820.00 clat (msec): min=36, max=381, avg=183.61, stdev=46.47 lat (msec): min=36, max=384, avg=183.84, stdev=46.48 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 326], 99.50th=[ 363], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 237, max= 512, per=24.76%, avg=343.21, stdev=74.86, samples=58 iops : min= 59, max= 128, avg=85.36, stdev=18.73, samples=58 lat (msec) : 50=0.08%, 100=0.74%, 250=89.41%, 500=9.77% cpu : usr=0.19%, sys=0.96%, ctx=2866, 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=180475: Wed Sep 9 02:18:18 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29341msec); 0 zone resets slat (usec): min=27, max=17229, avg=191.11, stdev=763.53 clat (msec): min=16, max=360, avg=182.90, stdev=46.92 lat (msec): min=17, max=360, avg=183.09, stdev=46.90 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 126], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 363] bw ( KiB/s): min= 166, max= 512, per=25.06%, avg=347.28, stdev=69.60, samples=58 iops : min= 41, max= 128, avg=86.40, stdev=17.49, samples=58 lat (msec) : 20=0.04%, 50=0.27%, 100=0.55%, 250=89.49%, 500=9.65% cpu : usr=0.14%, sys=0.77%, ctx=1973, 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=1387KiB/s (1420kB/s), 347KiB/s-349KiB/s (355kB/s-357kB/s), io=40.0MiB (41.9MB), run=29341-29538msec 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=180490: Wed Sep 9 02:18:58 2026 read: IOPS=41, BW=167KiB/s (171kB/s)(5048KiB/30274msec) slat (usec): min=28, max=50864, avg=13300.90, stdev=6990.24 clat (msec): min=34, max=314, avg=178.32, stdev=34.50 lat (msec): min=44, max=323, avg=191.62, stdev=35.36 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 130], 10.00th=[ 138], 20.00th=[ 148], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 194], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 296], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 102, max= 240, per=25.04%, avg=165.78, stdev=30.53, samples=60 iops : min= 25, max= 60, avg=40.97, stdev= 7.74, samples=60 write: IOPS=42, BW=172KiB/s (176kB/s)(5192KiB/30274msec); 0 zone resets slat (usec): min=27, max=13607, avg=222.23, stdev=709.10 clat (msec): min=95, max=324, avg=184.75, stdev=31.98 lat (msec): min=95, max=324, avg=184.98, stdev=31.96 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 159], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 199], 80.00th=[ 209], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 102, max= 262, per=24.80%, avg=170.90, stdev=32.69, samples=60 iops : min= 25, max= 65, avg=42.27, stdev= 8.17, samples=60 lat (msec) : 50=0.04%, 100=0.04%, 250=96.52%, 500=3.40% cpu : usr=0.21%, sys=1.60%, ctx=4561, 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=180491: Wed Sep 9 02:18:58 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(4976KiB/29998msec) slat (usec): min=37, max=56652, avg=13217.85, stdev=7363.36 clat (msec): min=33, max=335, avg=178.55, stdev=36.84 lat (msec): min=39, max=347, avg=191.77, stdev=37.69 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 209], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 103, max= 252, per=24.97%, avg=165.29, stdev=32.53, samples=59 iops : min= 25, max= 63, avg=40.88, stdev= 8.17, samples=59 write: IOPS=43, BW=175KiB/s (180kB/s)(5264KiB/29998msec); 0 zone resets slat (usec): min=30, max=12752, avg=252.94, stdev=896.61 clat (msec): min=67, max=335, avg=182.50, stdev=34.65 lat (msec): min=67, max=335, avg=182.75, stdev=34.64 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 131], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 309], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 111, max= 264, per=25.50%, avg=175.66, stdev=37.11, samples=59 iops : min= 27, max= 66, avg=43.47, stdev= 9.38, samples=59 lat (msec) : 50=0.04%, 100=0.90%, 250=95.62%, 500=3.44% cpu : usr=0.28%, sys=1.63%, ctx=4246, 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=180492: Wed Sep 9 02:18:58 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(4984KiB/30239msec) slat (usec): min=2544, max=59409, avg=13312.39, stdev=7327.92 clat (msec): min=80, max=337, avg=177.30, stdev=34.50 lat (msec): min=99, max=341, avg=190.62, stdev=34.81 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 128], 10.00th=[ 138], 20.00th=[ 148], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 224], 95.00th=[ 234], | 99.00th=[ 268], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 63, max= 231, per=24.82%, avg=164.28, stdev=34.83, samples=60 iops : min= 15, max= 57, avg=40.60, stdev= 8.71, samples=60 write: IOPS=43, BW=174KiB/s (178kB/s)(5256KiB/30239msec); 0 zone resets slat (usec): min=33, max=15524, avg=219.85, stdev=804.08 clat (msec): min=102, max=296, avg=184.69, stdev=33.24 lat (msec): min=102, max=296, avg=184.91, stdev=33.26 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 86, max= 239, per=25.01%, avg=172.32, stdev=34.29, samples=60 iops : min= 21, max= 59, avg=42.65, stdev= 8.64, samples=60 lat (msec) : 100=0.12%, 250=97.07%, 500=2.81% cpu : usr=0.23%, sys=1.58%, ctx=4486, 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=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=180493: Wed Sep 9 02:18:58 2026 read: IOPS=41, BW=167KiB/s (171kB/s)(5060KiB/30304msec) slat (usec): min=2835, max=58596, avg=13499.29, stdev=7414.65 clat (msec): min=22, max=294, avg=177.61, stdev=36.03 lat (msec): min=40, max=307, avg=191.11, stdev=36.70 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 86, max= 270, per=25.10%, avg=166.13, stdev=36.72, samples=60 iops : min= 21, max= 67, avg=41.07, stdev= 9.23, samples=60 write: IOPS=42, BW=171KiB/s (175kB/s)(5180KiB/30304msec); 0 zone resets slat (usec): min=35, max=22896, avg=262.96, stdev=1163.91 clat (msec): min=30, max=300, avg=185.27, stdev=34.63 lat (msec): min=31, max=300, avg=185.53, stdev=34.57 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 133], 10.00th=[ 144], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 228], 95.00th=[ 247], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 101, max= 262, per=24.55%, avg=169.18, stdev=33.50, samples=60 iops : min= 25, max= 65, avg=41.83, stdev= 8.42, samples=60 lat (msec) : 50=0.31%, 100=0.39%, 250=95.55%, 500=3.75% cpu : usr=0.26%, sys=1.67%, ctx=4543, 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=662KiB/s (678kB/s), 165KiB/s-167KiB/s (169kB/s-171kB/s), io=19.6MiB (20.5MB), run=29998-30304msec WRITE: bw=689KiB/s (706kB/s), 171KiB/s-175KiB/s (175kB/s-180kB/s), io=20.4MiB (21.4MB), run=29998-30304msec 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=180504: Wed Sep 9 02:19:08 2026 read: IOPS=2, BW=87.5MiB/s (91.8MB/s)(40.0MiB/457msec) slat (nsec): min=37045k, max=37045k, avg=37044902.00, stdev= 0.00 clat (nsec): min=400020k, max=400020k, avg=400019740.00, stdev= 0.00 lat (nsec): min=437095k, max=437095k, avg=437095142.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.41%, 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=87.5MiB/s (91.8MB/s), 87.5MiB/s-87.5MiB/s (91.8MB/s-91.8MB/s), io=40.0MiB (41.9MB), run=457-457msec 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