== sanity test 398c: run fio to test AIO ================= 10:56:22 (1788533782) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.47756 s, 87.8 MB/s osc.lustre-OST0000-osc-ffff9fac03350800.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=180204: Fri Sep 4 10:57:03 2026 write: IOPS=84, BW=340KiB/s (348kB/s)(10.0MiB/30130msec); 0 zone resets slat (usec): min=30, max=14319, avg=231.40, stdev=784.33 clat (msec): min=56, max=340, avg=187.45, stdev=43.39 lat (msec): min=56, max=340, avg=187.69, stdev=43.41 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 113], 10.00th=[ 132], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 237, max= 518, per=24.97%, avg=339.12, stdev=64.94, samples=59 iops : min= 59, max= 129, avg=84.37, stdev=16.20, samples=59 lat (msec) : 100=1.64%, 250=91.09%, 500=7.27% cpu : usr=0.15%, sys=0.99%, ctx=2377, 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=180205: Fri Sep 4 10:57:03 2026 write: IOPS=84, BW=340KiB/s (348kB/s)(10.0MiB/30155msec); 0 zone resets slat (usec): min=22, max=12253, avg=271.93, stdev=824.45 clat (msec): min=27, max=340, avg=187.51, stdev=42.95 lat (msec): min=28, max=340, avg=187.79, stdev=42.91 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 112], 10.00th=[ 133], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 224], 90.00th=[ 241], 95.00th=[ 257], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 330], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 229, max= 528, per=24.96%, avg=339.02, stdev=63.32, samples=59 iops : min= 57, max= 132, avg=84.36, stdev=15.83, samples=59 lat (msec) : 50=0.12%, 100=2.11%, 250=91.72%, 500=6.05% cpu : usr=0.24%, sys=0.98%, ctx=2730, 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=180206: Fri Sep 4 10:57:03 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30046msec); 0 zone resets slat (usec): min=28, max=14773, avg=259.30, stdev=752.47 clat (msec): min=22, max=452, avg=187.23, stdev=45.62 lat (msec): min=23, max=452, avg=187.49, stdev=45.66 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 110], 10.00th=[ 129], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 224], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 300], 99.50th=[ 321], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 451] bw ( KiB/s): min= 213, max= 586, per=25.09%, avg=340.75, stdev=72.93, samples=59 iops : min= 53, max= 146, avg=84.78, stdev=18.22, samples=59 lat (msec) : 50=0.16%, 100=2.11%, 250=90.35%, 500=7.38% cpu : usr=0.18%, sys=1.02%, ctx=2764, 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=180207: Fri Sep 4 10:57:03 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30065msec); 0 zone resets slat (usec): min=24, max=15789, avg=275.75, stdev=842.74 clat (msec): min=23, max=398, avg=187.04, stdev=44.68 lat (msec): min=24, max=398, avg=187.32, stdev=44.64 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 110], 10.00th=[ 133], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 380], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 252, max= 518, per=25.06%, avg=340.27, stdev=66.74, samples=59 iops : min= 63, max= 129, avg=84.68, stdev=16.67, samples=59 lat (msec) : 50=0.27%, 100=2.34%, 250=90.39%, 500=6.99% cpu : usr=0.22%, sys=1.09%, ctx=2926, 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=1358KiB/s (1391kB/s), 340KiB/s-341KiB/s (348kB/s-349kB/s), io=40.0MiB (41.9MB), run=30046-30155msec 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=180221: Fri Sep 4 10:57:45 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(5048KiB/31981msec) slat (usec): min=33, max=65236, avg=14212.83, stdev=7731.27 clat (msec): min=40, max=436, avg=188.38, stdev=45.49 lat (msec): min=41, max=462, avg=202.60, stdev=47.55 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 118], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 313], 99.50th=[ 334], 99.90th=[ 401], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 87, max= 291, per=25.31%, avg=157.41, stdev=37.13, samples=63 iops : min= 21, max= 72, avg=38.92, stdev= 9.31, samples=63 write: IOPS=40, BW=162KiB/s (166kB/s)(5192KiB/31981msec); 0 zone resets slat (usec): min=34, max=15284, avg=287.34, stdev=849.35 clat (msec): min=73, max=483, avg=196.31, stdev=45.13 lat (msec): min=73, max=483, avg=196.60, stdev=45.13 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 130], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 347], 99.50th=[ 372], 99.90th=[ 439], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 95, max= 239, per=25.06%, avg=162.14, stdev=34.44, samples=63 iops : min= 23, max= 59, avg=40.13, stdev= 8.62, samples=63 lat (msec) : 50=0.12%, 100=0.74%, 250=89.61%, 500=9.53% cpu : usr=0.31%, sys=1.91%, ctx=4600, 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=180222: Fri Sep 4 10:57:45 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4976KiB/32002msec) slat (usec): min=3060, max=51149, avg=14303.83, stdev=7541.65 clat (msec): min=83, max=361, avg=189.58, stdev=44.95 lat (msec): min=89, max=383, avg=203.89, stdev=46.73 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 271], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 52, max= 284, per=24.91%, avg=154.94, stdev=38.69, samples=63 iops : min= 13, max= 71, avg=38.32, stdev= 9.71, samples=63 write: IOPS=41, BW=164KiB/s (168kB/s)(5264KiB/32002msec); 0 zone resets slat (usec): min=30, max=20883, avg=315.87, stdev=1088.90 clat (msec): min=99, max=382, avg=193.93, stdev=42.87 lat (msec): min=99, max=383, avg=194.25, stdev=42.86 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 224], 90.00th=[ 247], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 363], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 88, max= 278, per=25.47%, avg=164.79, stdev=42.83, samples=63 iops : min= 22, max= 69, avg=40.76, stdev=10.67, samples=63 lat (msec) : 100=0.51%, 250=90.70%, 500=8.79% cpu : usr=0.30%, sys=1.87%, ctx=4600, 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=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=180223: Fri Sep 4 10:57:45 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4984KiB/32191msec) slat (usec): min=2657, max=50006, avg=14353.89, stdev=7315.07 clat (msec): min=69, max=365, avg=188.37, stdev=43.81 lat (msec): min=81, max=384, avg=202.73, stdev=45.25 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 355], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 72, max= 264, per=24.87%, avg=154.70, stdev=45.07, samples=63 iops : min= 18, max= 66, avg=38.24, stdev=11.29, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5256KiB/32191msec); 0 zone resets slat (usec): min=36, max=8478, avg=305.92, stdev=787.46 clat (msec): min=82, max=367, avg=196.89, stdev=45.10 lat (msec): min=82, max=367, avg=197.20, stdev=45.09 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 132], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 355], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 81, max= 268, per=25.02%, avg=161.90, stdev=33.23, samples=63 iops : min= 20, max= 67, avg=40.05, stdev= 8.37, samples=63 lat (msec) : 100=0.90%, 250=89.92%, 500=9.18% cpu : usr=0.35%, sys=1.94%, ctx=4687, 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=180224: Fri Sep 4 10:57:45 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5060KiB/32242msec) slat (usec): min=2991, max=59024, avg=14527.44, stdev=7531.59 clat (msec): min=11, max=369, avg=191.11, stdev=44.69 lat (msec): min=41, max=386, avg=205.65, stdev=46.21 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 224], 90.00th=[ 247], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 359], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 52, max= 236, per=25.06%, avg=155.86, stdev=35.77, samples=64 iops : min= 13, max= 59, avg=38.55, stdev= 8.94, samples=64 write: IOPS=40, BW=161KiB/s (165kB/s)(5180KiB/32242msec); 0 zone resets slat (usec): min=32, max=8594, avg=298.20, stdev=731.71 clat (msec): min=24, max=360, avg=194.18, stdev=44.21 lat (msec): min=24, max=360, avg=194.49, stdev=44.23 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 127], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 251], 95.00th=[ 268], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 67, max= 311, per=24.69%, avg=159.72, stdev=43.36, samples=64 iops : min= 16, max= 77, avg=39.50, stdev=10.86, samples=64 lat (msec) : 20=0.04%, 50=0.20%, 100=1.25%, 250=88.75%, 500=9.77% cpu : usr=0.35%, sys=1.96%, ctx=4710, 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=622KiB/s (637kB/s), 155KiB/s-158KiB/s (159kB/s-162kB/s), io=19.6MiB (20.5MB), run=31981-32242msec WRITE: bw=648KiB/s (664kB/s), 161KiB/s-164KiB/s (165kB/s-168kB/s), io=20.4MiB (21.4MB), run=31981-32242msec 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=180233: Fri Sep 4 10:57:56 2026 read: IOPS=2, BW=83.7MiB/s (87.7MB/s)(40.0MiB/478msec) slat (nsec): min=33726k, max=33726k, avg=33725819.00, stdev= 0.00 clat (nsec): min=424918k, max=424918k, avg=424917964.00, stdev= 0.00 lat (nsec): min=458650k, max=458650k, avg=458649656.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.73%, ctx=6, 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=83.7MiB/s (87.7MB/s), 83.7MiB/s-83.7MiB/s (87.7MB/s-87.7MB/s), io=40.0MiB (41.9MB), run=478-478msec 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