== sanity test 398c: run fio to test AIO ================= 00:56:06 (1787115366) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.555966 s, 75.4 MB/s osc.lustre-OST0000-osc-ffff96533a3f6800.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=180688: Wed Aug 19 00:56:46 2026 write: IOPS=79, BW=319KiB/s (327kB/s)(10.0MiB/32053msec); 0 zone resets slat (usec): min=52, max=16367, avg=339.91, stdev=949.03 clat (msec): min=14, max=444, avg=199.75, stdev=60.88 lat (msec): min=15, max=444, avg=200.09, stdev=60.84 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 116], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 180], 50.00th=[ 194], 60.00th=[ 209], | 70.00th=[ 228], 80.00th=[ 253], 90.00th=[ 292], 95.00th=[ 309], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 443], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 167, max= 509, per=25.14%, avg=319.27, stdev=86.54, samples=63 iops : min= 41, max= 127, avg=79.40, stdev=21.64, samples=63 lat (msec) : 20=0.08%, 50=0.23%, 100=2.03%, 250=76.60%, 500=21.05% cpu : usr=0.16%, sys=1.11%, ctx=2436, 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=180689: Wed Aug 19 00:56:46 2026 write: IOPS=79, BW=318KiB/s (326kB/s)(10.0MiB/32207msec); 0 zone resets slat (usec): min=40, max=36909, avg=340.06, stdev=1280.11 clat (msec): min=21, max=360, avg=199.80, stdev=59.53 lat (msec): min=22, max=360, avg=200.14, stdev=59.58 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 117], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 180], 50.00th=[ 194], 60.00th=[ 213], | 70.00th=[ 230], 80.00th=[ 255], 90.00th=[ 288], 95.00th=[ 305], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 175, max= 509, per=25.02%, avg=317.78, stdev=83.03, samples=63 iops : min= 43, max= 127, avg=79.03, stdev=20.77, samples=63 lat (msec) : 50=0.23%, 100=1.41%, 250=76.95%, 500=21.41% cpu : usr=0.16%, sys=1.17%, ctx=2474, 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=180690: Wed Aug 19 00:56:46 2026 write: IOPS=79, BW=318KiB/s (326kB/s)(10.0MiB/32211msec); 0 zone resets slat (usec): min=52, max=19360, avg=280.49, stdev=899.25 clat (msec): min=37, max=391, avg=200.08, stdev=60.06 lat (msec): min=38, max=391, avg=200.36, stdev=60.08 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 115], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 161], 40.00th=[ 178], 50.00th=[ 194], 60.00th=[ 211], | 70.00th=[ 230], 80.00th=[ 257], 90.00th=[ 288], 95.00th=[ 309], | 99.00th=[ 342], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 183, max= 510, per=24.97%, avg=317.17, stdev=83.69, samples=63 iops : min= 45, max= 127, avg=78.87, stdev=20.93, samples=63 lat (msec) : 50=0.08%, 100=2.70%, 250=75.55%, 500=21.68% cpu : usr=0.10%, sys=0.93%, ctx=2008, 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=180691: Wed Aug 19 00:56:46 2026 write: IOPS=79, BW=318KiB/s (325kB/s)(10.0MiB/32233msec); 0 zone resets slat (usec): min=50, max=28003, avg=308.85, stdev=1110.79 clat (msec): min=29, max=398, avg=200.15, stdev=58.93 lat (msec): min=30, max=398, avg=200.46, stdev=58.96 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 182], 50.00th=[ 197], 60.00th=[ 211], | 70.00th=[ 230], 80.00th=[ 251], 90.00th=[ 288], 95.00th=[ 305], | 99.00th=[ 334], 99.50th=[ 338], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 401] bw ( KiB/s): min= 191, max= 509, per=24.89%, avg=316.11, stdev=78.12, samples=63 iops : min= 47, max= 127, avg=78.62, stdev=19.55, samples=63 lat (msec) : 50=0.04%, 100=2.42%, 250=76.76%, 500=20.78% cpu : usr=0.16%, sys=1.03%, ctx=2451, 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=1271KiB/s (1301kB/s), 318KiB/s-319KiB/s (325kB/s-327kB/s), io=40.0MiB (41.9MB), run=32053-32233msec 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=180706: Wed Aug 19 00:57:28 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5048KiB/35659msec) slat (usec): min=2407, max=77650, avg=15951.75, stdev=9603.12 clat (msec): min=17, max=445, avg=208.77, stdev=60.30 lat (msec): min=32, max=475, avg=224.73, stdev=63.34 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 123], 10.00th=[ 140], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 186], 50.00th=[ 201], 60.00th=[ 218], | 70.00th=[ 234], 80.00th=[ 255], 90.00th=[ 292], 95.00th=[ 326], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 430], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 56, max= 264, per=25.12%, avg=141.19, stdev=43.88, samples=70 iops : min= 14, max= 66, avg=34.81, stdev=11.01, samples=70 write: IOPS=36, BW=146KiB/s (149kB/s)(5192KiB/35659msec); 0 zone resets slat (usec): min=55, max=7633, avg=309.25, stdev=593.85 clat (msec): min=39, max=430, avg=218.41, stdev=61.36 lat (msec): min=40, max=430, avg=218.73, stdev=61.32 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 167], | 30.00th=[ 184], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 228], | 70.00th=[ 247], 80.00th=[ 266], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 384], 99.50th=[ 388], 99.90th=[ 409], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 53, max= 238, per=24.83%, avg=145.27, stdev=38.57, samples=70 iops : min= 13, max= 59, avg=35.83, stdev= 9.67, samples=70 lat (msec) : 20=0.04%, 50=0.04%, 100=1.05%, 250=73.75%, 500=25.12% cpu : usr=0.23%, sys=1.79%, ctx=4530, 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=180707: Wed Aug 19 00:57:28 2026 read: IOPS=35, BW=140KiB/s (144kB/s)(4976KiB/35484msec) slat (usec): min=60, max=77522, avg=15939.00, stdev=9756.91 clat (msec): min=6, max=495, avg=209.68, stdev=61.80 lat (msec): min=7, max=510, avg=225.63, stdev=64.91 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 123], 10.00th=[ 138], 20.00th=[ 159], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 220], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 292], 95.00th=[ 326], | 99.00th=[ 380], 99.50th=[ 405], 99.90th=[ 485], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 56, max= 215, per=24.78%, avg=139.27, stdev=37.49, samples=70 iops : min= 14, max= 53, avg=34.34, stdev= 9.37, samples=70 write: IOPS=37, BW=148KiB/s (152kB/s)(5264KiB/35484msec); 0 zone resets slat (usec): min=58, max=14486, avg=345.98, stdev=874.62 clat (msec): min=43, max=456, avg=217.29, stdev=64.54 lat (msec): min=43, max=456, avg=217.64, stdev=64.51 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 124], 10.00th=[ 140], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 266], 90.00th=[ 305], 95.00th=[ 347], | 99.00th=[ 388], 99.50th=[ 397], 99.90th=[ 430], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 63, max= 248, per=25.34%, avg=148.21, stdev=44.42, samples=70 iops : min= 15, max= 62, avg=36.59, stdev=11.15, samples=70 lat (msec) : 10=0.08%, 50=0.16%, 100=0.82%, 250=74.02%, 500=24.92% cpu : usr=0.17%, sys=1.72%, ctx=4250, 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=180708: Wed Aug 19 00:57:28 2026 read: IOPS=34, BW=140KiB/s (143kB/s)(4984KiB/35622msec) slat (usec): min=2655, max=62057, avg=16222.09, stdev=9505.31 clat (msec): min=34, max=461, avg=210.05, stdev=61.35 lat (msec): min=50, max=493, avg=226.27, stdev=64.89 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 159], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 220], | 70.00th=[ 236], 80.00th=[ 259], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 384], 99.50th=[ 401], 99.90th=[ 443], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 48, max= 264, per=24.97%, avg=140.34, stdev=42.36, samples=70 iops : min= 12, max= 66, avg=34.59, stdev=10.59, samples=70 write: IOPS=36, BW=148KiB/s (151kB/s)(5256KiB/35622msec); 0 zone resets slat (usec): min=56, max=7680, avg=313.66, stdev=650.18 clat (msec): min=75, max=468, avg=217.56, stdev=63.05 lat (msec): min=75, max=468, avg=217.87, stdev=63.05 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 228], | 70.00th=[ 247], 80.00th=[ 266], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 388], 99.50th=[ 422], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 63, max= 278, per=25.13%, avg=147.00, stdev=39.22, samples=70 iops : min= 15, max= 69, avg=36.29, stdev= 9.86, samples=70 lat (msec) : 50=0.04%, 100=1.21%, 250=72.66%, 500=26.09% cpu : usr=0.24%, sys=1.67%, ctx=4273, 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=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=180709: Wed Aug 19 00:57:28 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5060KiB/35619msec) slat (usec): min=2866, max=70490, avg=15980.85, stdev=9388.01 clat (msec): min=75, max=442, avg=210.34, stdev=61.85 lat (msec): min=92, max=475, avg=226.33, stdev=65.13 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 120], 10.00th=[ 136], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 236], 80.00th=[ 257], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 393], 99.50th=[ 418], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 61, max= 238, per=25.29%, avg=142.16, stdev=36.32, samples=70 iops : min= 15, max= 59, avg=35.06, stdev= 9.10, samples=70 write: IOPS=36, BW=145KiB/s (149kB/s)(5180KiB/35619msec); 0 zone resets slat (usec): min=58, max=13581, avg=341.61, stdev=832.44 clat (msec): min=76, max=459, avg=216.60, stdev=60.97 lat (msec): min=77, max=459, avg=216.95, stdev=60.96 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 125], 10.00th=[ 144], 20.00th=[ 167], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 292], 95.00th=[ 338], | 99.00th=[ 393], 99.50th=[ 405], 99.90th=[ 439], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 40, max= 256, per=24.74%, avg=144.70, stdev=42.32, samples=70 iops : min= 10, max= 64, avg=35.70, stdev=10.59, samples=70 lat (msec) : 100=1.02%, 250=74.18%, 500=24.80% cpu : usr=0.28%, sys=1.83%, ctx=4347, 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=563KiB/s (576kB/s), 140KiB/s-142KiB/s (143kB/s-145kB/s), io=19.6MiB (20.5MB), run=35484-35659msec WRITE: bw=586KiB/s (600kB/s), 145KiB/s-148KiB/s (149kB/s-152kB/s), io=20.4MiB (21.4MB), run=35484-35659msec 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=180718: Wed Aug 19 00:57:38 2026 read: IOPS=2, BW=80.0MiB/s (84.9MB/s)(40.0MiB/494msec) slat (nsec): min=18699k, max=18699k, avg=18698949.00, stdev= 0.00 clat (nsec): min=438422k, max=438422k, avg=438422345.00, stdev= 0.00 lat (nsec): min=457125k, max=457125k, avg=457125305.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.03%, ctx=12, 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=80.0MiB/s (84.9MB/s), 80.0MiB/s-80.0MiB/s (84.9MB/s-84.9MB/s), io=40.0MiB (41.9MB), run=494-494msec 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