== sanity test 398c: run fio to test AIO ================= 17:23:10 (1788470590) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.41235 s, 102 MB/s osc.lustre-OST0000-osc-ffff9bf2c51b5800.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=181061: Thu Sep 3 17:23:54 2026 write: IOPS=83, BW=332KiB/s (340kB/s)(10.0MiB/30801msec); 0 zone resets slat (usec): min=29, max=17289, avg=232.39, stdev=874.61 clat (msec): min=14, max=369, avg=191.82, stdev=48.47 lat (msec): min=14, max=369, avg=192.06, stdev=48.49 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 127], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 326], 99.50th=[ 355], 99.90th=[ 363], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 198, max= 495, per=24.96%, avg=331.23, stdev=74.20, samples=61 iops : min= 49, max= 123, avg=82.34, stdev=18.52, samples=61 lat (msec) : 20=0.04%, 50=0.08%, 100=0.16%, 250=88.05%, 500=11.68% cpu : usr=0.15%, sys=0.99%, ctx=2372, majf=0, minf=8 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=181062: Thu Sep 3 17:23:54 2026 write: IOPS=82, BW=332KiB/s (340kB/s)(10.0MiB/30846msec); 0 zone resets slat (usec): min=29, max=21180, avg=214.01, stdev=872.94 clat (msec): min=62, max=370, avg=191.00, stdev=48.54 lat (msec): min=63, max=370, avg=191.21, stdev=48.52 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 232], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 363], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 119, max= 495, per=24.91%, avg=330.49, stdev=77.07, samples=61 iops : min= 29, max= 123, avg=82.15, stdev=19.28, samples=61 lat (msec) : 100=0.39%, 250=87.62%, 500=11.99% cpu : usr=0.17%, sys=0.77%, ctx=1929, majf=0, minf=8 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=181063: Thu Sep 3 17:23:54 2026 write: IOPS=83, BW=332KiB/s (340kB/s)(10.0MiB/30799msec); 0 zone resets slat (usec): min=27, max=15589, avg=225.44, stdev=814.17 clat (msec): min=24, max=369, avg=191.21, stdev=48.25 lat (msec): min=25, max=369, avg=191.44, stdev=48.22 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 288], | 99.00th=[ 317], 99.50th=[ 359], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 372] bw ( KiB/s): min= 143, max= 500, per=24.97%, avg=331.36, stdev=76.88, samples=61 iops : min= 35, max= 125, avg=82.38, stdev=19.26, samples=61 lat (msec) : 50=0.12%, 100=0.16%, 250=86.29%, 500=13.44% cpu : usr=0.17%, sys=0.94%, ctx=2277, 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=181064: Thu Sep 3 17:23:54 2026 write: IOPS=83, BW=333KiB/s (341kB/s)(10.0MiB/30769msec); 0 zone resets slat (usec): min=27, max=18994, avg=180.49, stdev=714.13 clat (msec): min=33, max=352, avg=190.65, stdev=48.14 lat (msec): min=33, max=352, avg=190.83, stdev=48.13 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 124], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 213], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 119, max= 510, per=24.97%, avg=331.34, stdev=82.57, samples=61 iops : min= 29, max= 127, avg=82.38, stdev=20.69, samples=61 lat (msec) : 50=0.08%, 100=0.08%, 250=86.29%, 500=13.55% cpu : usr=0.14%, sys=0.69%, ctx=1394, 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 Run status group 0 (all jobs): WRITE: bw=1328KiB/s (1360kB/s), 332KiB/s-333KiB/s (340kB/s-341kB/s), io=40.0MiB (41.9MB), run=30769-30846msec 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=181079: Thu Sep 3 17:24:35 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5048KiB/31042msec) slat (usec): min=3150, max=65718, avg=14625.83, stdev=8174.95 clat (msec): min=22, max=394, avg=182.61, stdev=43.85 lat (msec): min=30, max=420, avg=197.25, stdev=45.56 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 300], 99.50th=[ 326], 99.90th=[ 355], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 109, max= 231, per=24.87%, avg=160.67, stdev=33.02, samples=61 iops : min= 27, max= 57, avg=39.74, stdev= 8.27, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5192KiB/31042msec); 0 zone resets slat (usec): min=30, max=22998, avg=297.87, stdev=1032.61 clat (msec): min=19, max=393, avg=188.27, stdev=42.34 lat (msec): min=22, max=393, avg=188.57, stdev=42.31 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 347], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 111, max= 271, per=24.59%, avg=165.51, stdev=35.46, samples=61 iops : min= 27, max= 67, avg=40.95, stdev= 8.89, samples=61 lat (msec) : 20=0.04%, 50=0.35%, 100=0.90%, 250=91.48%, 500=7.23% cpu : usr=0.32%, sys=2.12%, ctx=4305, 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=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=181080: Thu Sep 3 17:24:35 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4976KiB/30919msec) slat (usec): min=2853, max=49859, avg=14543.16, stdev=7718.83 clat (msec): min=70, max=327, avg=181.80, stdev=39.76 lat (msec): min=96, max=343, avg=196.35, stdev=41.42 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 232], 95.00th=[ 249], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 96, max= 255, per=24.81%, avg=160.25, stdev=35.78, samples=61 iops : min= 24, max= 63, avg=39.62, stdev= 8.94, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5264KiB/30919msec); 0 zone resets slat (usec): min=31, max=11404, avg=255.58, stdev=738.63 clat (msec): min=31, max=314, avg=188.02, stdev=39.45 lat (msec): min=31, max=314, avg=188.28, stdev=39.43 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 253], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 103, max= 270, per=25.28%, avg=170.11, stdev=33.39, samples=61 iops : min= 25, max= 67, avg=42.11, stdev= 8.31, samples=61 lat (msec) : 50=0.08%, 100=0.62%, 250=93.79%, 500=5.51% cpu : usr=0.29%, sys=2.10%, ctx=4250, 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=181081: Thu Sep 3 17:24:35 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4984KiB/30900msec) slat (usec): min=52, max=56174, avg=14603.84, stdev=7896.60 clat (msec): min=35, max=307, avg=184.38, stdev=41.13 lat (msec): min=35, max=322, avg=198.99, stdev=42.33 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 121], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 257], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 102, max= 240, per=24.96%, avg=161.23, stdev=32.67, samples=61 iops : min= 25, max= 60, avg=39.89, stdev= 8.19, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5256KiB/30900msec); 0 zone resets slat (usec): min=33, max=13295, avg=324.94, stdev=967.97 clat (msec): min=71, max=313, avg=186.66, stdev=38.84 lat (msec): min=71, max=313, avg=186.99, stdev=38.83 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 251], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 94, max= 254, per=25.14%, avg=169.18, stdev=36.77, samples=61 iops : min= 23, max= 63, avg=41.89, stdev= 9.22, samples=61 lat (msec) : 50=0.08%, 100=0.62%, 250=93.05%, 500=6.25% cpu : usr=0.31%, sys=1.80%, ctx=4161, 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=181082: Thu Sep 3 17:24:35 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5060KiB/30977msec) slat (usec): min=2967, max=61228, avg=14442.65, stdev=7739.77 clat (msec): min=32, max=331, avg=182.10, stdev=40.06 lat (msec): min=49, max=348, avg=196.55, stdev=41.19 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 123], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 236], 95.00th=[ 253], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 317], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 94, max= 231, per=25.21%, avg=162.84, stdev=32.46, samples=61 iops : min= 23, max= 57, avg=40.28, stdev= 8.08, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5180KiB/30977msec); 0 zone resets slat (usec): min=30, max=13343, avg=296.59, stdev=894.44 clat (msec): min=89, max=353, avg=187.96, stdev=38.63 lat (msec): min=97, max=354, avg=188.26, stdev=38.60 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 131], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 317], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 94, max= 231, per=24.70%, avg=166.21, stdev=35.51, samples=61 iops : min= 23, max= 57, avg=41.13, stdev= 8.89, samples=61 lat (msec) : 50=0.04%, 100=0.43%, 250=93.44%, 500=6.09% cpu : usr=0.27%, sys=2.05%, ctx=4126, 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=646KiB/s (662kB/s), 161KiB/s-163KiB/s (165kB/s-167kB/s), io=19.6MiB (20.5MB), run=30900-31042msec WRITE: bw=673KiB/s (689kB/s), 167KiB/s-170KiB/s (171kB/s-174kB/s), io=20.4MiB (21.4MB), run=30900-31042msec 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=181091: Thu Sep 3 17:24:47 2026 read: IOPS=2, BW=81.6MiB/s (85.6MB/s)(40.0MiB/490msec) slat (nsec): min=50415k, max=50415k, avg=50415099.00, stdev= 0.00 clat (nsec): min=408091k, max=408091k, avg=408091009.00, stdev= 0.00 lat (nsec): min=458510k, max=458510k, avg=458510163.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.84%, ctx=5, majf=0, minf=8 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=81.6MiB/s (85.6MB/s), 81.6MiB/s-81.6MiB/s (85.6MB/s-85.6MB/s), io=40.0MiB (41.9MB), run=490-490msec 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