== sanity test 398c: run fio to test AIO ================= 21:26:28 (1788657988) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.431198 s, 97.3 MB/s osc.lustre-OST0000-osc-ffff945103090800.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=180254: Sat Sep 5 21:27:12 2026 write: IOPS=73, BW=295KiB/s (302kB/s)(10.0MiB/34688msec); 0 zone resets slat (usec): min=28, max=16376, avg=202.84, stdev=805.65 clat (msec): min=24, max=501, avg=215.59, stdev=62.60 lat (msec): min=24, max=501, avg=215.80, stdev=62.59 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 127], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 207], 60.00th=[ 228], | 70.00th=[ 249], 80.00th=[ 271], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 388], 99.50th=[ 422], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 126, max= 502, per=25.07%, avg=295.63, stdev=77.44, samples=68 iops : min= 31, max= 125, avg=73.53, stdev=19.38, samples=68 lat (msec) : 50=0.12%, 100=0.78%, 250=69.92%, 500=29.02%, 750=0.16% cpu : usr=0.13%, sys=0.65%, ctx=1520, 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=180255: Sat Sep 5 21:27:12 2026 write: IOPS=73, BW=295KiB/s (302kB/s)(10.0MiB/34672msec); 0 zone resets slat (usec): min=27, max=14371, avg=216.43, stdev=730.20 clat (msec): min=42, max=528, avg=215.59, stdev=61.51 lat (msec): min=48, max=528, avg=215.81, stdev=61.51 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 190], 50.00th=[ 207], 60.00th=[ 224], | 70.00th=[ 245], 80.00th=[ 262], 90.00th=[ 292], 95.00th=[ 330], | 99.00th=[ 384], 99.50th=[ 405], 99.90th=[ 489], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 127, max= 510, per=25.08%, avg=295.69, stdev=78.34, samples=68 iops : min= 31, max= 127, avg=73.53, stdev=19.63, samples=68 lat (msec) : 50=0.04%, 100=1.80%, 250=72.19%, 500=25.90%, 750=0.08% cpu : usr=0.16%, sys=0.90%, ctx=2795, 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=180256: Sat Sep 5 21:27:12 2026 write: IOPS=74, BW=299KiB/s (306kB/s)(10.0MiB/34220msec); 0 zone resets slat (usec): min=28, max=19452, avg=217.74, stdev=881.86 clat (msec): min=18, max=512, avg=213.41, stdev=63.35 lat (msec): min=18, max=512, avg=213.63, stdev=63.33 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 123], 10.00th=[ 140], 20.00th=[ 159], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 209], 60.00th=[ 226], | 70.00th=[ 243], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 330], | 99.00th=[ 384], 99.50th=[ 426], 99.90th=[ 435], 99.95th=[ 447], | 99.99th=[ 514] bw ( KiB/s): min= 127, max= 509, per=25.39%, avg=299.34, stdev=75.19, samples=67 iops : min= 31, max= 127, avg=74.42, stdev=18.82, samples=67 lat (msec) : 20=0.04%, 50=0.20%, 100=1.60%, 250=70.20%, 500=27.93% lat (msec) : 750=0.04% cpu : usr=0.22%, sys=0.85%, ctx=2442, 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=180257: Sat Sep 5 21:27:12 2026 write: IOPS=73, BW=295KiB/s (302kB/s)(10.0MiB/34735msec); 0 zone resets slat (usec): min=30, max=22307, avg=195.39, stdev=862.00 clat (msec): min=83, max=480, avg=215.96, stdev=61.00 lat (msec): min=83, max=480, avg=216.16, stdev=60.96 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 131], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 194], 50.00th=[ 211], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 262], 90.00th=[ 288], 95.00th=[ 330], | 99.00th=[ 388], 99.50th=[ 405], 99.90th=[ 435], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 151, max= 517, per=25.05%, avg=295.37, stdev=76.02, samples=68 iops : min= 37, max= 129, avg=73.44, stdev=19.01, samples=68 lat (msec) : 100=1.25%, 250=70.94%, 500=27.81% cpu : usr=0.13%, sys=0.76%, ctx=2202, 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=1179KiB/s (1208kB/s), 295KiB/s-299KiB/s (302kB/s-306kB/s), io=40.0MiB (41.9MB), run=34220-34735msec 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=180272: Sat Sep 5 21:28:01 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(5048KiB/40247msec) slat (msec): min=3, max=220, avg=17.51, stdev=13.55 clat (msec): min=76, max=647, avg=234.74, stdev=71.52 lat (msec): min=94, max=687, avg=252.26, stdev=75.88 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 133], 10.00th=[ 150], 20.00th=[ 178], | 30.00th=[ 194], 40.00th=[ 213], 50.00th=[ 226], 60.00th=[ 245], | 70.00th=[ 264], 80.00th=[ 284], 90.00th=[ 326], 95.00th=[ 363], | 99.00th=[ 447], 99.50th=[ 493], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 33, max= 239, per=25.06%, avg=124.54, stdev=41.47, samples=79 iops : min= 8, max= 59, avg=30.66, stdev=10.42, samples=79 write: IOPS=32, BW=129KiB/s (132kB/s)(5192KiB/40247msec); 0 zone resets slat (usec): min=31, max=16683, avg=234.77, stdev=844.80 clat (msec): min=99, max=746, avg=246.64, stdev=71.80 lat (msec): min=99, max=747, avg=246.88, stdev=71.80 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 146], 10.00th=[ 169], 20.00th=[ 190], | 30.00th=[ 207], 40.00th=[ 224], 50.00th=[ 236], 60.00th=[ 253], | 70.00th=[ 275], 80.00th=[ 296], 90.00th=[ 330], 95.00th=[ 372], | 99.00th=[ 493], 99.50th=[ 592], 99.90th=[ 634], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 28, max= 244, per=24.82%, avg=128.56, stdev=39.28, samples=79 iops : min= 7, max= 61, avg=31.66, stdev= 9.86, samples=79 lat (msec) : 100=0.27%, 250=60.39%, 500=38.67%, 750=0.66% cpu : usr=0.21%, sys=1.33%, ctx=4195, 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=180273: Sat Sep 5 21:28:01 2026 read: IOPS=31, BW=124KiB/s (127kB/s)(4976KiB/40008msec) slat (usec): min=3278, max=99520, avg=17015.98, stdev=10576.01 clat (msec): min=33, max=516, avg=234.11, stdev=68.05 lat (msec): min=47, max=543, avg=251.13, stdev=71.85 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 138], 10.00th=[ 155], 20.00th=[ 178], | 30.00th=[ 197], 40.00th=[ 213], 50.00th=[ 226], 60.00th=[ 243], | 70.00th=[ 262], 80.00th=[ 288], 90.00th=[ 326], 95.00th=[ 355], | 99.00th=[ 435], 99.50th=[ 447], 99.90th=[ 506], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 28, max= 222, per=24.91%, avg=123.80, stdev=39.15, samples=79 iops : min= 7, max= 55, avg=30.47, stdev= 9.82, samples=79 write: IOPS=32, BW=132KiB/s (135kB/s)(5264KiB/40008msec); 0 zone resets slat (usec): min=30, max=22893, avg=245.49, stdev=989.81 clat (msec): min=40, max=559, avg=245.55, stdev=65.48 lat (msec): min=40, max=559, avg=245.80, stdev=65.49 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 153], 10.00th=[ 171], 20.00th=[ 188], | 30.00th=[ 207], 40.00th=[ 224], 50.00th=[ 241], 60.00th=[ 253], | 70.00th=[ 275], 80.00th=[ 296], 90.00th=[ 334], 95.00th=[ 363], | 99.00th=[ 426], 99.50th=[ 439], 99.90th=[ 535], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 62, max= 236, per=25.36%, avg=131.34, stdev=37.57, samples=79 iops : min= 15, max= 59, avg=32.35, stdev= 9.50, samples=79 lat (msec) : 50=0.08%, 100=0.31%, 250=60.70%, 500=38.67%, 750=0.23% cpu : usr=0.22%, sys=1.26%, ctx=4320, 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=180274: Sat Sep 5 21:28:01 2026 read: IOPS=30, BW=124KiB/s (127kB/s)(4984KiB/40324msec) slat (msec): min=2, max=226, avg=17.75, stdev=15.20 clat (msec): min=24, max=689, avg=238.67, stdev=76.42 lat (msec): min=36, max=734, avg=256.43, stdev=80.94 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 132], 10.00th=[ 153], 20.00th=[ 176], | 30.00th=[ 194], 40.00th=[ 213], 50.00th=[ 234], 60.00th=[ 251], | 70.00th=[ 271], 80.00th=[ 296], 90.00th=[ 338], 95.00th=[ 372], | 99.00th=[ 426], 99.50th=[ 477], 99.90th=[ 667], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 28, max= 198, per=24.61%, avg=122.32, stdev=35.71, samples=79 iops : min= 7, max= 49, avg=30.09, stdev= 8.98, samples=79 write: IOPS=32, BW=130KiB/s (133kB/s)(5256KiB/40324msec); 0 zone resets slat (usec): min=32, max=12817, avg=205.40, stdev=644.62 clat (msec): min=23, max=683, avg=243.87, stdev=75.40 lat (msec): min=23, max=683, avg=244.08, stdev=75.41 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 142], 10.00th=[ 165], 20.00th=[ 186], | 30.00th=[ 203], 40.00th=[ 220], 50.00th=[ 236], 60.00th=[ 253], | 70.00th=[ 275], 80.00th=[ 296], 90.00th=[ 338], 95.00th=[ 372], | 99.00th=[ 447], 99.50th=[ 634], 99.90th=[ 659], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 33, max= 223, per=24.73%, avg=128.10, stdev=42.25, samples=79 iops : min= 8, max= 55, avg=31.54, stdev=10.60, samples=79 lat (msec) : 50=0.35%, 100=0.74%, 250=58.40%, 500=39.96%, 750=0.55% cpu : usr=0.24%, sys=1.43%, ctx=3979, 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=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=180275: Sat Sep 5 21:28:01 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(5060KiB/39769msec) slat (usec): min=51, max=87266, avg=17072.72, stdev=11164.47 clat (msec): min=25, max=516, avg=234.44, stdev=67.55 lat (msec): min=39, max=540, avg=251.53, stdev=71.27 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 136], 10.00th=[ 157], 20.00th=[ 182], | 30.00th=[ 199], 40.00th=[ 211], 50.00th=[ 228], 60.00th=[ 243], | 70.00th=[ 262], 80.00th=[ 288], 90.00th=[ 330], 95.00th=[ 355], | 99.00th=[ 418], 99.50th=[ 447], 99.90th=[ 506], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 55, max= 238, per=25.51%, avg=126.81, stdev=36.81, samples=78 iops : min= 13, max= 59, avg=31.22, stdev= 9.25, samples=78 write: IOPS=32, BW=130KiB/s (133kB/s)(5180KiB/39769msec); 0 zone resets slat (usec): min=33, max=10495, avg=236.43, stdev=689.13 clat (msec): min=58, max=538, avg=244.77, stdev=67.34 lat (msec): min=59, max=538, avg=245.00, stdev=67.38 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 148], 10.00th=[ 167], 20.00th=[ 188], | 30.00th=[ 205], 40.00th=[ 220], 50.00th=[ 239], 60.00th=[ 255], | 70.00th=[ 271], 80.00th=[ 296], 90.00th=[ 334], 95.00th=[ 376], | 99.00th=[ 447], 99.50th=[ 472], 99.90th=[ 514], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 71, max= 247, per=25.00%, avg=129.53, stdev=35.52, samples=78 iops : min= 17, max= 61, avg=31.91, stdev= 8.94, samples=78 lat (msec) : 50=0.16%, 100=0.43%, 250=59.45%, 500=39.80%, 750=0.16% cpu : usr=0.24%, sys=1.48%, ctx=4533, 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=498KiB/s (510kB/s), 124KiB/s-127KiB/s (127kB/s-130kB/s), io=19.6MiB (20.5MB), run=39769-40324msec WRITE: bw=518KiB/s (531kB/s), 129KiB/s-132KiB/s (132kB/s-135kB/s), io=20.4MiB (21.4MB), run=39769-40324msec 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=180285: Sat Sep 5 21:28:10 2026 read: IOPS=2, BW=94.3MiB/s (98.9MB/s)(40.0MiB/424msec) slat (nsec): min=28117k, max=28117k, avg=28116533.00, stdev= 0.00 clat (nsec): min=364183k, max=364183k, avg=364182579.00, stdev= 0.00 lat (nsec): min=392304k, max=392304k, avg=392304194.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.89%, ctx=5, 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=94.3MiB/s (98.9MB/s), 94.3MiB/s-94.3MiB/s (98.9MB/s-98.9MB/s), io=40.0MiB (41.9MB), run=424-424msec 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