== sanity test 398c: run fio to test AIO ================= 09:59:36 (1787320776) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.501967 s, 83.6 MB/s osc.lustre-OST0000-osc-ffff96b212a2e800.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=179722: Fri Aug 21 10:00:16 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29840msec); 0 zone resets slat (usec): min=50, max=16730, avg=408.09, stdev=1049.00 clat (msec): min=20, max=330, avg=185.02, stdev=38.80 lat (msec): min=21, max=330, avg=185.43, stdev=38.79 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 188], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 236], 95.00th=[ 259], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 330] bw ( KiB/s): min= 108, max= 495, per=25.02%, avg=343.22, stdev=68.62, samples=59 iops : min= 27, max= 123, avg=85.36, stdev=17.11, samples=59 lat (msec) : 50=0.23%, 100=0.04%, 250=92.66%, 500=7.07% cpu : usr=0.20%, sys=1.30%, ctx=2748, 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=179723: Fri Aug 21 10:00:16 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29531msec); 0 zone resets slat (usec): min=50, max=17972, avg=441.57, stdev=1233.77 clat (msec): min=31, max=363, avg=183.95, stdev=39.86 lat (msec): min=31, max=363, avg=184.40, stdev=39.88 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 241], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 330], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 253, max= 494, per=25.26%, avg=346.52, stdev=57.46, samples=58 iops : min= 63, max= 123, avg=86.17, stdev=14.32, samples=58 lat (msec) : 50=0.16%, 100=0.98%, 250=93.28%, 500=5.59% cpu : usr=0.18%, sys=1.46%, ctx=3082, 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=179724: Fri Aug 21 10:00:16 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29841msec); 0 zone resets slat (usec): min=50, max=20330, avg=401.63, stdev=1125.33 clat (msec): min=35, max=328, avg=185.21, stdev=37.19 lat (msec): min=36, max=329, avg=185.61, stdev=37.17 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 134], 10.00th=[ 144], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 236], 95.00th=[ 251], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 216, max= 502, per=24.99%, avg=342.88, stdev=63.34, samples=59 iops : min= 54, max= 125, avg=85.27, stdev=15.77, samples=59 lat (msec) : 50=0.08%, 250=94.49%, 500=5.43% cpu : usr=0.21%, sys=1.20%, ctx=2718, 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=179725: Fri Aug 21 10:00:16 2026 write: IOPS=85, BW=343KiB/s (352kB/s)(10.0MiB/29824msec); 0 zone resets slat (usec): min=39, max=23924, avg=379.61, stdev=1144.49 clat (msec): min=27, max=329, avg=185.39, stdev=38.01 lat (msec): min=27, max=330, avg=185.78, stdev=38.01 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 134], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 236], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 216, max= 470, per=24.99%, avg=342.86, stdev=60.12, samples=59 iops : min= 54, max= 117, avg=85.27, stdev=14.97, samples=59 lat (msec) : 50=0.08%, 100=0.23%, 250=93.32%, 500=6.37% cpu : usr=0.21%, sys=1.26%, ctx=2799, 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=1373KiB/s (1406kB/s), 343KiB/s-347KiB/s (351kB/s-355kB/s), io=40.0MiB (41.9MB), run=29531-29841msec 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=179739: Fri Aug 21 10:01:02 2026 read: IOPS=33, BW=133KiB/s (137kB/s)(5048KiB/37848msec) slat (usec): min=3046, max=77134, avg=16737.19, stdev=9932.48 clat (msec): min=35, max=470, avg=222.81, stdev=61.09 lat (msec): min=64, max=484, avg=239.55, stdev=63.34 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 169], | 30.00th=[ 186], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 232], | 70.00th=[ 253], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 401], 99.50th=[ 414], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 63, max= 222, per=24.94%, avg=132.20, stdev=34.94, samples=75 iops : min= 15, max= 55, avg=32.49, stdev= 8.83, samples=75 write: IOPS=34, BW=137KiB/s (140kB/s)(5192KiB/37848msec); 0 zone resets slat (usec): min=50, max=14975, avg=417.51, stdev=1130.46 clat (msec): min=44, max=453, avg=230.78, stdev=56.19 lat (msec): min=45, max=453, avg=231.20, stdev=56.16 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 153], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 209], 50.00th=[ 226], 60.00th=[ 243], | 70.00th=[ 257], 80.00th=[ 275], 90.00th=[ 309], 95.00th=[ 334], | 99.00th=[ 384], 99.50th=[ 397], 99.90th=[ 422], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 62, max= 231, per=24.76%, avg=136.43, stdev=35.08, samples=75 iops : min= 15, max= 57, avg=33.56, stdev= 8.78, samples=75 lat (msec) : 50=0.12%, 100=0.20%, 250=66.76%, 500=32.93% cpu : usr=0.17%, sys=1.79%, ctx=4308, 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=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=179740: Fri Aug 21 10:01:02 2026 read: IOPS=33, BW=132KiB/s (135kB/s)(4976KiB/37624msec) slat (usec): min=60, max=80110, avg=16881.75, stdev=9891.53 clat (msec): min=16, max=446, avg=223.12, stdev=63.51 lat (msec): min=16, max=478, avg=240.02, stdev=66.36 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 199], 50.00th=[ 215], 60.00th=[ 236], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 309], 95.00th=[ 342], | 99.00th=[ 393], 99.50th=[ 405], 99.90th=[ 435], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 47, max= 236, per=24.85%, avg=131.73, stdev=35.27, samples=74 iops : min= 11, max= 59, avg=32.38, stdev= 8.86, samples=74 write: IOPS=34, BW=140KiB/s (143kB/s)(5264KiB/37624msec); 0 zone resets slat (usec): min=52, max=27459, avg=414.57, stdev=1169.97 clat (msec): min=37, max=432, avg=229.67, stdev=57.12 lat (msec): min=38, max=433, avg=230.09, stdev=57.14 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 207], 50.00th=[ 224], 60.00th=[ 241], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 309], 95.00th=[ 338], | 99.00th=[ 380], 99.50th=[ 388], 99.90th=[ 409], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 62, max= 239, per=25.36%, avg=139.73, stdev=36.71, samples=74 iops : min= 15, max= 59, avg=34.41, stdev= 9.25, samples=74 lat (msec) : 20=0.08%, 50=0.16%, 100=0.20%, 250=66.37%, 500=33.20% cpu : usr=0.24%, sys=1.88%, ctx=4278, 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=179741: Fri Aug 21 10:01:02 2026 read: IOPS=33, BW=132KiB/s (135kB/s)(4984KiB/37737msec) slat (usec): min=2894, max=64016, avg=16828.58, stdev=9268.71 clat (msec): min=38, max=457, avg=222.59, stdev=59.95 lat (msec): min=54, max=469, avg=239.43, stdev=62.17 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 171], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 230], | 70.00th=[ 253], 80.00th=[ 275], 90.00th=[ 305], 95.00th=[ 330], | 99.00th=[ 384], 99.50th=[ 409], 99.90th=[ 443], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 64, max= 231, per=24.90%, avg=131.95, stdev=39.30, samples=74 iops : min= 16, max= 57, avg=32.45, stdev= 9.86, samples=74 write: IOPS=34, BW=139KiB/s (143kB/s)(5256KiB/37737msec); 0 zone resets slat (usec): min=58, max=20325, avg=388.46, stdev=943.79 clat (msec): min=116, max=404, avg=230.07, stdev=54.58 lat (msec): min=116, max=404, avg=230.47, stdev=54.57 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 226], 60.00th=[ 241], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 63, max= 221, per=25.11%, avg=138.35, stdev=35.49, samples=74 iops : min= 15, max= 55, avg=34.03, stdev= 8.95, samples=74 lat (msec) : 50=0.08%, 100=0.20%, 250=67.38%, 500=32.34% cpu : usr=0.25%, sys=1.98%, ctx=4403, 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=179742: Fri Aug 21 10:01:02 2026 read: IOPS=33, BW=134KiB/s (137kB/s)(5060KiB/37816msec) slat (usec): min=3352, max=67213, avg=16829.55, stdev=9162.20 clat (msec): min=78, max=420, avg=223.91, stdev=57.88 lat (msec): min=87, max=434, avg=240.75, stdev=60.13 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 140], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 215], 60.00th=[ 232], | 70.00th=[ 253], 80.00th=[ 275], 90.00th=[ 300], 95.00th=[ 334], | 99.00th=[ 384], 99.50th=[ 397], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 62, max= 214, per=25.12%, avg=133.16, stdev=35.26, samples=74 iops : min= 15, max= 53, avg=32.73, stdev= 8.85, samples=74 write: IOPS=34, BW=137KiB/s (140kB/s)(5180KiB/37816msec); 0 zone resets slat (usec): min=55, max=15760, avg=401.04, stdev=996.06 clat (msec): min=106, max=407, avg=229.60, stdev=57.13 lat (msec): min=106, max=407, avg=230.00, stdev=57.07 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 224], 60.00th=[ 241], | 70.00th=[ 259], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 388], 99.50th=[ 397], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 62, max= 215, per=24.70%, avg=136.12, stdev=36.25, samples=74 iops : min= 15, max= 53, avg=33.50, stdev= 9.14, samples=74 lat (msec) : 100=0.16%, 250=66.80%, 500=33.05% cpu : usr=0.20%, sys=1.87%, ctx=4317, 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=530KiB/s (543kB/s), 132KiB/s-134KiB/s (135kB/s-137kB/s), io=19.6MiB (20.5MB), run=37624-37848msec WRITE: bw=552KiB/s (565kB/s), 137KiB/s-140KiB/s (140kB/s-143kB/s), io=20.4MiB (21.4MB), run=37624-37848msec 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=179763: Fri Aug 21 10:01:14 2026 read: IOPS=1, BW=54.5MiB/s (57.1MB/s)(40.0MiB/734msec) slat (nsec): min=48785k, max=48785k, avg=48784807.00, stdev= 0.00 clat (nsec): min=650286k, max=650286k, avg=650286091.00, stdev= 0.00 lat (nsec): min=699075k, max=699075k, avg=699075147.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.64%, ctx=8, 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=54.5MiB/s (57.1MB/s), 54.5MiB/s-54.5MiB/s (57.1MB/s-57.1MB/s), io=40.0MiB (41.9MB), run=734-734msec 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