== sanity test 398c: run fio to test AIO ================= 01:24:21 (1786944261) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.198957 s, 211 MB/s osc.lustre-OST0000-osc-ffff906d614a2000.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=155252: Mon Aug 17 01:25:40 2026 write: IOPS=34, BW=139KiB/s (142kB/s)(10.0MiB/73678msec); 0 zone resets slat (usec): min=36, max=4602, avg=249.20, stdev=318.92 clat (msec): min=29, max=731, avg=460.04, stdev=100.56 lat (msec): min=30, max=731, avg=460.29, stdev=100.57 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 313], 10.00th=[ 347], 20.00th=[ 380], | 30.00th=[ 401], 40.00th=[ 426], 50.00th=[ 451], 60.00th=[ 477], | 70.00th=[ 506], 80.00th=[ 542], 90.00th=[ 600], 95.00th=[ 642], | 99.00th=[ 693], 99.50th=[ 709], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 63, max= 313, per=24.94%, avg=138.39, stdev=32.44, samples=146 iops : min= 15, max= 78, avg=34.30, stdev= 8.13, samples=146 lat (msec) : 50=0.04%, 250=1.91%, 500=65.94%, 750=32.11% cpu : usr=0.06%, sys=0.55%, ctx=2995, 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=155253: Mon Aug 17 01:25:40 2026 write: IOPS=34, BW=139KiB/s (142kB/s)(10.0MiB/73740msec); 0 zone resets slat (usec): min=38, max=7957, avg=259.95, stdev=367.71 clat (msec): min=114, max=775, avg=460.39, stdev=100.25 lat (msec): min=114, max=775, avg=460.65, stdev=100.26 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 317], 10.00th=[ 347], 20.00th=[ 380], | 30.00th=[ 405], 40.00th=[ 426], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 510], 80.00th=[ 542], 90.00th=[ 592], 95.00th=[ 634], | 99.00th=[ 701], 99.50th=[ 718], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 63, max= 280, per=24.91%, avg=138.27, stdev=30.98, samples=146 iops : min= 15, max= 70, avg=34.27, stdev= 7.75, samples=146 lat (msec) : 250=1.80%, 500=65.74%, 750=32.30%, 1000=0.16% cpu : usr=0.06%, sys=0.55%, ctx=3109, 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=155254: Mon Aug 17 01:25:40 2026 write: IOPS=34, BW=139KiB/s (142kB/s)(10.0MiB/73771msec); 0 zone resets slat (usec): min=46, max=3996, avg=255.31, stdev=332.48 clat (msec): min=101, max=770, avg=460.35, stdev=97.80 lat (msec): min=101, max=770, avg=460.61, stdev=97.81 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 309], 10.00th=[ 347], 20.00th=[ 380], | 30.00th=[ 405], 40.00th=[ 430], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 510], 80.00th=[ 550], 90.00th=[ 584], 95.00th=[ 625], | 99.00th=[ 684], 99.50th=[ 718], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 768] bw ( KiB/s): min= 63, max= 256, per=24.90%, avg=138.22, stdev=31.70, samples=146 iops : min= 15, max= 64, avg=34.26, stdev= 7.96, samples=146 lat (msec) : 250=1.41%, 500=64.96%, 750=33.59%, 1000=0.04% cpu : usr=0.07%, sys=0.56%, ctx=3009, 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=155255: Mon Aug 17 01:25:40 2026 write: IOPS=34, BW=139KiB/s (142kB/s)(10.0MiB/73772msec); 0 zone resets slat (usec): min=37, max=5270, avg=255.19, stdev=322.56 clat (msec): min=127, max=771, avg=460.34, stdev=96.77 lat (msec): min=127, max=771, avg=460.59, stdev=96.77 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 317], 10.00th=[ 342], 20.00th=[ 380], | 30.00th=[ 405], 40.00th=[ 426], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 506], 80.00th=[ 542], 90.00th=[ 592], 95.00th=[ 625], | 99.00th=[ 693], 99.50th=[ 701], 99.90th=[ 718], 99.95th=[ 735], | 99.99th=[ 768] bw ( KiB/s): min= 55, max= 248, per=24.86%, avg=137.95, stdev=32.29, samples=146 iops : min= 13, max= 62, avg=34.19, stdev= 8.09, samples=146 lat (msec) : 250=1.48%, 500=65.86%, 750=32.62%, 1000=0.04% cpu : usr=0.06%, sys=0.57%, ctx=3064, 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=555KiB/s (569kB/s), 139KiB/s-139KiB/s (142kB/s-142kB/s), io=40.0MiB (41.9MB), run=73678-73772msec 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=155276: Mon Aug 17 01:26:26 2026 read: IOPS=29, BW=118KiB/s (121kB/s)(5048KiB/42888msec) slat (usec): min=40, max=18402, avg=5115.17, stdev=2022.67 clat (msec): min=4, max=315, avg=169.28, stdev=40.10 lat (msec): min=8, max=322, avg=174.40, stdev=40.67 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 112], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 268], 99.50th=[ 284], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 47, max= 216, per=25.17%, avg=117.05, stdev=34.54, samples=85 iops : min= 11, max= 54, avg=29.05, stdev= 8.69, samples=85 write: IOPS=30, BW=121KiB/s (124kB/s)(5192KiB/42888msec); 0 zone resets slat (usec): min=44, max=3323, avg=250.05, stdev=254.49 clat (msec): min=42, max=615, avg=358.54, stdev=93.86 lat (msec): min=42, max=616, avg=358.79, stdev=93.86 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 207], 10.00th=[ 236], 20.00th=[ 279], | 30.00th=[ 309], 40.00th=[ 334], 50.00th=[ 359], 60.00th=[ 384], | 70.00th=[ 414], 80.00th=[ 439], 90.00th=[ 485], 95.00th=[ 510], | 99.00th=[ 558], 99.50th=[ 575], 99.90th=[ 609], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 71, max= 208, per=24.90%, avg=120.53, stdev=28.66, samples=85 iops : min= 17, max= 52, avg=29.91, stdev= 7.21, samples=85 lat (msec) : 10=0.12%, 20=0.27%, 50=0.59%, 100=0.70%, 250=52.93% lat (msec) : 500=41.88%, 750=3.52% cpu : usr=0.16%, sys=1.25%, ctx=5095, majf=0, minf=16 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=155277: Mon Aug 17 01:26:26 2026 read: IOPS=28, BW=116KiB/s (118kB/s)(4976KiB/43034msec) slat (usec): min=1550, max=18378, avg=5107.62, stdev=1986.66 clat (msec): min=8, max=308, avg=170.66, stdev=38.44 lat (msec): min=11, max=318, avg=175.78, stdev=38.92 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 116], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 234], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 48, max= 208, per=24.65%, avg=114.61, stdev=39.50, samples=85 iops : min= 12, max= 52, avg=28.42, stdev= 9.92, samples=85 write: IOPS=30, BW=122KiB/s (125kB/s)(5264KiB/43034msec); 0 zone resets slat (usec): min=57, max=3826, avg=260.20, stdev=282.06 clat (msec): min=53, max=614, avg=356.25, stdev=94.82 lat (msec): min=53, max=614, avg=356.51, stdev=94.84 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 199], 10.00th=[ 234], 20.00th=[ 275], | 30.00th=[ 305], 40.00th=[ 330], 50.00th=[ 359], 60.00th=[ 384], | 70.00th=[ 414], 80.00th=[ 443], 90.00th=[ 481], 95.00th=[ 510], | 99.00th=[ 550], 99.50th=[ 575], 99.90th=[ 609], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 72, max= 232, per=25.16%, avg=121.76, stdev=29.84, samples=85 iops : min= 18, max= 58, avg=30.22, stdev= 7.52, samples=85 lat (msec) : 10=0.04%, 50=0.27%, 100=0.66%, 250=53.05%, 500=42.58% lat (msec) : 750=3.40% cpu : usr=0.12%, sys=1.28%, ctx=5161, majf=0, minf=16 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=155278: Mon Aug 17 01:26:26 2026 read: IOPS=28, BW=116KiB/s (118kB/s)(4984KiB/43077msec) slat (usec): min=1606, max=19037, avg=5127.32, stdev=2130.42 clat (msec): min=5, max=325, avg=168.15, stdev=38.78 lat (msec): min=10, max=331, avg=173.28, stdev=39.29 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 109], 10.00th=[ 122], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 268], 99.50th=[ 275], 99.90th=[ 309], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 32, max= 200, per=24.68%, avg=114.76, stdev=39.62, samples=85 iops : min= 8, max= 50, avg=28.47, stdev= 9.97, samples=85 write: IOPS=30, BW=122KiB/s (125kB/s)(5256KiB/43077msec); 0 zone resets slat (usec): min=46, max=4178, avg=265.03, stdev=316.91 clat (msec): min=60, max=637, avg=359.30, stdev=96.84 lat (msec): min=60, max=638, avg=359.57, stdev=96.84 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 194], 10.00th=[ 230], 20.00th=[ 279], | 30.00th=[ 309], 40.00th=[ 338], 50.00th=[ 359], 60.00th=[ 388], | 70.00th=[ 414], 80.00th=[ 443], 90.00th=[ 485], 95.00th=[ 514], | 99.00th=[ 567], 99.50th=[ 592], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 64, max= 200, per=24.83%, avg=120.16, stdev=26.55, samples=85 iops : min= 16, max= 50, avg=29.82, stdev= 6.73, samples=85 lat (msec) : 10=0.08%, 20=0.08%, 50=0.31%, 100=0.90%, 250=53.05% lat (msec) : 500=41.91%, 750=3.67% cpu : usr=0.14%, sys=1.25%, ctx=5255, 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=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=155279: Mon Aug 17 01:26:26 2026 read: IOPS=29, BW=118KiB/s (121kB/s)(5060KiB/42862msec) slat (usec): min=1771, max=15112, avg=5074.26, stdev=1924.35 clat (msec): min=13, max=302, avg=170.35, stdev=39.06 lat (msec): min=18, max=309, avg=175.43, stdev=39.49 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 111], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 284], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 16, max= 216, per=25.30%, avg=117.66, stdev=35.37, samples=85 iops : min= 4, max= 54, avg=29.20, stdev= 8.89, samples=85 write: IOPS=30, BW=121KiB/s (124kB/s)(5180KiB/42862msec); 0 zone resets slat (usec): min=43, max=4313, avg=257.18, stdev=296.13 clat (msec): min=56, max=606, avg=357.10, stdev=92.24 lat (msec): min=56, max=606, avg=357.36, stdev=92.24 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 199], 10.00th=[ 236], 20.00th=[ 275], | 30.00th=[ 305], 40.00th=[ 334], 50.00th=[ 359], 60.00th=[ 380], | 70.00th=[ 409], 80.00th=[ 443], 90.00th=[ 477], 95.00th=[ 502], | 99.00th=[ 550], 99.50th=[ 567], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 48, max= 208, per=24.90%, avg=120.49, stdev=28.53, samples=85 iops : min= 12, max= 52, avg=29.91, stdev= 7.25, samples=85 lat (msec) : 20=0.16%, 50=0.20%, 100=0.66%, 250=53.48%, 500=42.54% lat (msec) : 750=2.97% cpu : usr=0.12%, sys=1.28%, ctx=5146, majf=0, minf=17 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=466KiB/s (477kB/s), 116KiB/s-118KiB/s (118kB/s-121kB/s), io=19.6MiB (20.5MB), run=42862-43077msec WRITE: bw=485KiB/s (497kB/s), 121KiB/s-122KiB/s (124kB/s-125kB/s), io=20.4MiB (21.4MB), run=42862-43077msec 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=155288: Mon Aug 17 01:26:31 2026 read: IOPS=5, BW=207MiB/s (217MB/s)(40.0MiB/193msec) slat (nsec): min=14205k, max=14205k, avg=14204895.00, stdev= 0.00 clat (nsec): min=167937k, max=167937k, avg=167937264.00, stdev= 0.00 lat (nsec): min=182175k, max=182175k, avg=182174565.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 169], 60.00th=[ 169], | 70.00th=[ 169], 80.00th=[ 169], 90.00th=[ 169], 95.00th=[ 169], | 99.00th=[ 169], 99.50th=[ 169], 99.90th=[ 169], 99.95th=[ 169], | 99.99th=[ 169] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=5.73%, ctx=37, 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=207MiB/s (217MB/s), 207MiB/s-207MiB/s (217MB/s-217MB/s), io=40.0MiB (41.9MB), run=193-193msec 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