== sanity test 398c: run fio to test AIO ================= 17:12:03 (1788469923) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.509861 s, 82.3 MB/s osc.lustre-OST0000-osc-ffff8d1e2ba7b000.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=180904: Thu Sep 3 17:12:50 2026 write: IOPS=69, BW=279KiB/s (285kB/s)(10.0MiB/36748msec); 0 zone resets slat (usec): min=21, max=12166, avg=176.75, stdev=703.50 clat (msec): min=86, max=565, avg=228.71, stdev=83.75 lat (msec): min=86, max=565, avg=228.89, stdev=83.76 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 157], | 30.00th=[ 174], 40.00th=[ 192], 50.00th=[ 211], 60.00th=[ 234], | 70.00th=[ 262], 80.00th=[ 296], 90.00th=[ 351], 95.00th=[ 397], | 99.00th=[ 472], 99.50th=[ 558], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 103, max= 510, per=24.91%, avg=277.54, stdev=102.03, samples=72 iops : min= 25, max= 127, avg=68.94, stdev=25.63, samples=72 lat (msec) : 100=0.78%, 250=64.69%, 500=33.79%, 750=0.74% cpu : usr=0.18%, sys=0.64%, ctx=2482, 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=180905: Thu Sep 3 17:12:50 2026 write: IOPS=69, BW=279KiB/s (285kB/s)(10.0MiB/36763msec); 0 zone resets slat (usec): min=20, max=17492, avg=158.24, stdev=811.81 clat (msec): min=86, max=568, avg=228.54, stdev=83.40 lat (msec): min=87, max=568, avg=228.70, stdev=83.42 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 125], 10.00th=[ 132], 20.00th=[ 157], | 30.00th=[ 174], 40.00th=[ 192], 50.00th=[ 211], 60.00th=[ 234], | 70.00th=[ 266], 80.00th=[ 305], 90.00th=[ 338], 95.00th=[ 397], | 99.00th=[ 468], 99.50th=[ 558], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 123, max= 606, per=24.86%, avg=276.95, stdev=96.83, samples=73 iops : min= 30, max= 151, avg=68.82, stdev=24.29, samples=73 lat (msec) : 100=0.55%, 250=64.26%, 500=34.45%, 750=0.74% cpu : usr=0.08%, sys=0.55%, ctx=1390, 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=180906: Thu Sep 3 17:12:50 2026 write: IOPS=69, BW=280KiB/s (286kB/s)(10.0MiB/36612msec); 0 zone resets slat (usec): min=26, max=12418, avg=166.40, stdev=638.64 clat (msec): min=31, max=565, avg=227.96, stdev=83.61 lat (msec): min=31, max=565, avg=228.13, stdev=83.60 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 157], | 30.00th=[ 176], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 232], | 70.00th=[ 259], 80.00th=[ 300], 90.00th=[ 355], 95.00th=[ 388], | 99.00th=[ 443], 99.50th=[ 451], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 567] bw ( KiB/s): min= 119, max= 638, per=24.96%, avg=278.10, stdev=104.28, samples=72 iops : min= 29, max= 159, avg=69.10, stdev=26.17, samples=72 lat (msec) : 50=0.08%, 100=1.17%, 250=64.96%, 500=33.55%, 750=0.23% cpu : usr=0.10%, sys=0.58%, ctx=2131, 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=180907: Thu Sep 3 17:12:50 2026 write: IOPS=70, BW=280KiB/s (287kB/s)(10.0MiB/36555msec); 0 zone resets slat (usec): min=21, max=22507, avg=207.15, stdev=975.10 clat (msec): min=64, max=565, avg=228.01, stdev=84.07 lat (msec): min=64, max=565, avg=228.22, stdev=84.09 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 155], | 30.00th=[ 174], 40.00th=[ 192], 50.00th=[ 211], 60.00th=[ 232], | 70.00th=[ 259], 80.00th=[ 300], 90.00th=[ 351], 95.00th=[ 388], | 99.00th=[ 477], 99.50th=[ 510], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 126, max= 566, per=25.07%, avg=279.26, stdev=92.80, samples=72 iops : min= 31, max= 141, avg=69.39, stdev=23.31, samples=72 lat (msec) : 100=0.86%, 250=66.33%, 500=32.30%, 750=0.51% cpu : usr=0.13%, sys=0.84%, ctx=2857, 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=1114KiB/s (1141kB/s), 279KiB/s-280KiB/s (285kB/s-287kB/s), io=40.0MiB (41.9MB), run=36555-36763msec 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=180924: Thu Sep 3 17:13:45 2026 read: IOPS=31, BW=126KiB/s (129kB/s)(5048KiB/39975msec) slat (usec): min=3194, max=86768, avg=16959.26, stdev=10358.94 clat (msec): min=27, max=451, avg=236.32, stdev=60.22 lat (msec): min=43, max=495, avg=253.29, stdev=63.17 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 155], 10.00th=[ 169], 20.00th=[ 188], | 30.00th=[ 201], 40.00th=[ 215], 50.00th=[ 228], 60.00th=[ 243], | 70.00th=[ 262], 80.00th=[ 284], 90.00th=[ 326], 95.00th=[ 351], | 99.00th=[ 397], 99.50th=[ 426], 99.90th=[ 435], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 48, max= 207, per=25.06%, avg=125.82, stdev=33.79, samples=78 iops : min= 12, max= 51, avg=30.95, stdev= 8.46, samples=78 write: IOPS=32, BW=130KiB/s (133kB/s)(5192KiB/39975msec); 0 zone resets slat (usec): min=25, max=19959, avg=216.92, stdev=896.81 clat (msec): min=124, max=473, avg=241.84, stdev=58.32 lat (msec): min=124, max=473, avg=242.06, stdev=58.31 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 165], 10.00th=[ 176], 20.00th=[ 190], | 30.00th=[ 205], 40.00th=[ 220], 50.00th=[ 234], 60.00th=[ 249], | 70.00th=[ 266], 80.00th=[ 288], 90.00th=[ 321], 95.00th=[ 351], | 99.00th=[ 409], 99.50th=[ 418], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 32, max= 215, per=24.90%, avg=130.00, stdev=37.05, samples=78 iops : min= 8, max= 53, avg=32.00, stdev= 9.25, samples=78 lat (msec) : 50=0.08%, 250=61.88%, 500=38.05% cpu : usr=0.20%, sys=1.46%, ctx=4358, 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=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=180925: Thu Sep 3 17:13:45 2026 read: IOPS=31, BW=126KiB/s (129kB/s)(4976KiB/39425msec) slat (usec): min=36, max=79417, avg=17030.64, stdev=10491.86 clat (msec): min=15, max=834, avg=235.06, stdev=71.40 lat (msec): min=29, max=850, avg=252.10, stdev=74.36 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 224], 60.00th=[ 241], | 70.00th=[ 262], 80.00th=[ 288], 90.00th=[ 321], 95.00th=[ 355], | 99.00th=[ 443], 99.50th=[ 506], 99.90th=[ 718], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 32, max= 224, per=25.16%, avg=126.31, stdev=36.91, samples=77 iops : min= 8, max= 56, avg=31.06, stdev= 9.27, samples=77 write: IOPS=33, BW=134KiB/s (137kB/s)(5264KiB/39425msec); 0 zone resets slat (usec): min=33, max=18757, avg=233.89, stdev=1019.51 clat (msec): min=110, max=795, avg=240.00, stdev=63.36 lat (msec): min=110, max=795, avg=240.23, stdev=63.37 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 163], 10.00th=[ 174], 20.00th=[ 188], | 30.00th=[ 203], 40.00th=[ 218], 50.00th=[ 230], 60.00th=[ 247], | 70.00th=[ 262], 80.00th=[ 284], 90.00th=[ 321], 95.00th=[ 355], | 99.00th=[ 405], 99.50th=[ 435], 99.90th=[ 760], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 47, max= 209, per=25.69%, avg=134.10, stdev=36.08, samples=77 iops : min= 11, max= 52, avg=33.01, stdev= 9.03, samples=77 lat (msec) : 20=0.08%, 50=0.08%, 100=0.16%, 250=62.97%, 500=36.25% lat (msec) : 750=0.35%, 1000=0.12% cpu : usr=0.29%, sys=1.49%, ctx=4480, 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=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=180926: Thu Sep 3 17:13:45 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(4984KiB/39940msec) slat (usec): min=2571, max=76644, avg=17152.66, stdev=10298.50 clat (msec): min=51, max=458, avg=238.17, stdev=63.65 lat (msec): min=68, max=481, avg=255.32, stdev=65.99 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 157], 10.00th=[ 169], 20.00th=[ 186], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 228], 60.00th=[ 243], | 70.00th=[ 264], 80.00th=[ 288], 90.00th=[ 330], 95.00th=[ 359], | 99.00th=[ 426], 99.50th=[ 439], 99.90th=[ 456], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 39, max= 208, per=24.82%, avg=124.59, stdev=34.01, samples=78 iops : min= 9, max= 52, avg=30.64, stdev= 8.55, samples=78 write: IOPS=32, BW=132KiB/s (135kB/s)(5256KiB/39940msec); 0 zone resets slat (usec): min=29, max=16584, avg=225.48, stdev=887.18 clat (msec): min=131, max=489, avg=240.66, stdev=56.76 lat (msec): min=131, max=489, avg=240.89, stdev=56.78 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 163], 10.00th=[ 176], 20.00th=[ 192], | 30.00th=[ 205], 40.00th=[ 218], 50.00th=[ 230], 60.00th=[ 247], | 70.00th=[ 264], 80.00th=[ 288], 90.00th=[ 317], 95.00th=[ 347], | 99.00th=[ 405], 99.50th=[ 426], 99.90th=[ 439], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 47, max= 215, per=25.05%, avg=130.78, stdev=36.04, samples=78 iops : min= 11, max= 53, avg=32.18, stdev= 8.99, samples=78 lat (msec) : 100=0.04%, 250=63.09%, 500=36.88% cpu : usr=0.26%, sys=1.40%, ctx=4243, 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=180927: Thu Sep 3 17:13:45 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(5060KiB/39969msec) slat (msec): min=2, max=129, avg=16.67, stdev=10.80 clat (msec): min=30, max=493, avg=234.63, stdev=62.60 lat (msec): min=37, max=508, avg=251.30, stdev=65.84 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 153], 10.00th=[ 167], 20.00th=[ 184], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 226], 60.00th=[ 241], | 70.00th=[ 262], 80.00th=[ 279], 90.00th=[ 317], 95.00th=[ 347], | 99.00th=[ 430], 99.50th=[ 456], 99.90th=[ 485], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 47, max= 215, per=25.19%, avg=126.44, stdev=38.06, samples=78 iops : min= 11, max= 53, avg=31.09, stdev= 9.56, samples=78 write: IOPS=32, BW=130KiB/s (133kB/s)(5180KiB/39969msec); 0 zone resets slat (usec): min=30, max=20069, avg=263.06, stdev=1282.15 clat (msec): min=56, max=488, avg=244.25, stdev=61.43 lat (msec): min=56, max=488, avg=244.51, stdev=61.43 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 163], 10.00th=[ 174], 20.00th=[ 190], | 30.00th=[ 205], 40.00th=[ 222], 50.00th=[ 236], 60.00th=[ 251], | 70.00th=[ 271], 80.00th=[ 296], 90.00th=[ 334], 95.00th=[ 355], | 99.00th=[ 418], 99.50th=[ 443], 99.90th=[ 472], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 55, max= 231, per=24.72%, avg=129.04, stdev=32.11, samples=78 iops : min= 13, max= 57, avg=31.74, stdev= 8.02, samples=78 lat (msec) : 50=0.04%, 100=0.12%, 250=61.91%, 500=37.93% cpu : usr=0.23%, sys=1.46%, ctx=4608, 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=502KiB/s (514kB/s), 125KiB/s-127KiB/s (128kB/s-130kB/s), io=19.6MiB (20.5MB), run=39425-39975msec WRITE: bw=523KiB/s (535kB/s), 130KiB/s-134KiB/s (133kB/s-137kB/s), io=20.4MiB (21.4MB), run=39425-39975msec 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=180938: Thu Sep 3 17:14:00 2026 read: IOPS=1, BW=59.2MiB/s (62.0MB/s)(40.0MiB/676msec) slat (nsec): min=41906k, max=41906k, avg=41905654.00, stdev= 0.00 clat (nsec): min=615272k, max=615272k, avg=615272293.00, stdev= 0.00 lat (nsec): min=657183k, max=657183k, avg=657183423.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.78%, ctx=12, majf=0, minf=7 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=59.2MiB/s (62.0MB/s), 59.2MiB/s-59.2MiB/s (62.0MB/s-62.0MB/s), io=40.0MiB (41.9MB), run=676-676msec 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