== sanity test 398c: run fio to test AIO ================= 12:27:41 (1787848061) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.6842 s, 61.3 MB/s osc.lustre-OST0000-osc-ffff96865100c800.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=179859: Thu Aug 27 12:28:27 2026 write: IOPS=76, BW=304KiB/s (311kB/s)(10.0MiB/33680msec); 0 zone resets slat (usec): min=24, max=14836, avg=263.41, stdev=859.74 clat (msec): min=24, max=465, avg=209.51, stdev=68.66 lat (msec): min=26, max=467, avg=209.77, stdev=68.69 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 182], 50.00th=[ 201], 60.00th=[ 218], | 70.00th=[ 236], 80.00th=[ 264], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 409], 99.50th=[ 451], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 464] bw ( KiB/s): min= 165, max= 565, per=25.08%, avg=304.52, stdev=85.27, samples=66 iops : min= 41, max= 141, avg=75.68, stdev=21.44, samples=66 lat (msec) : 50=0.04%, 100=1.52%, 250=73.87%, 500=24.57% cpu : usr=0.16%, sys=1.00%, ctx=2877, 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=179860: Thu Aug 27 12:28:27 2026 write: IOPS=75, BW=304KiB/s (311kB/s)(10.0MiB/33733msec); 0 zone resets slat (usec): min=23, max=21569, avg=236.51, stdev=983.83 clat (msec): min=28, max=480, avg=209.20, stdev=69.59 lat (msec): min=28, max=480, avg=209.44, stdev=69.56 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 120], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 180], 50.00th=[ 201], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 300], 95.00th=[ 342], | 99.00th=[ 447], 99.50th=[ 456], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 127, max= 528, per=24.93%, avg=302.61, stdev=93.12, samples=66 iops : min= 31, max= 132, avg=75.23, stdev=23.40, samples=66 lat (msec) : 50=0.16%, 100=1.76%, 250=74.88%, 500=23.20% cpu : usr=0.19%, sys=0.94%, ctx=2098, majf=0, minf=8 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=179861: Thu Aug 27 12:28:27 2026 write: IOPS=76, BW=305KiB/s (313kB/s)(10.0MiB/33521msec); 0 zone resets slat (usec): min=22, max=25829, avg=194.31, stdev=915.56 clat (msec): min=58, max=469, avg=209.11, stdev=68.06 lat (msec): min=59, max=469, avg=209.31, stdev=68.04 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 116], 10.00th=[ 134], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 180], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 236], 80.00th=[ 257], 90.00th=[ 305], 95.00th=[ 347], | 99.00th=[ 409], 99.50th=[ 418], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 468] bw ( KiB/s): min= 125, max= 640, per=25.05%, avg=304.09, stdev=93.79, samples=66 iops : min= 31, max= 160, avg=75.59, stdev=23.60, samples=66 lat (msec) : 100=1.41%, 250=76.37%, 500=22.23% cpu : usr=0.21%, sys=0.83%, ctx=1930, 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=179862: Thu Aug 27 12:28:27 2026 write: IOPS=75, BW=304KiB/s (311kB/s)(10.0MiB/33717msec); 0 zone resets slat (usec): min=26, max=15996, avg=249.54, stdev=807.61 clat (msec): min=14, max=470, avg=209.22, stdev=68.45 lat (msec): min=15, max=471, avg=209.47, stdev=68.46 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 121], 10.00th=[ 134], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 182], 50.00th=[ 201], 60.00th=[ 218], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 418], 99.50th=[ 456], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 472] bw ( KiB/s): min= 141, max= 557, per=24.94%, avg=302.73, stdev=86.08, samples=66 iops : min= 35, max= 139, avg=75.23, stdev=21.66, samples=66 lat (msec) : 20=0.04%, 50=0.12%, 100=1.64%, 250=74.73%, 500=23.48% cpu : usr=0.21%, sys=1.13%, ctx=2952, 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=1214KiB/s (1243kB/s), 304KiB/s-305KiB/s (311kB/s-313kB/s), io=40.0MiB (41.9MB), run=33521-33733msec 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=179877: Thu Aug 27 12:29:19 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(5048KiB/39848msec) slat (msec): min=2, max=202, avg=18.48, stdev=12.15 clat (msec): min=81, max=564, avg=234.23, stdev=67.14 lat (msec): min=100, max=588, avg=252.72, stdev=70.55 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 132], 10.00th=[ 155], 20.00th=[ 180], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 228], 60.00th=[ 245], | 70.00th=[ 268], 80.00th=[ 288], 90.00th=[ 317], 95.00th=[ 342], | 99.00th=[ 418], 99.50th=[ 456], 99.90th=[ 550], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 62, max= 231, per=25.00%, avg=125.76, stdev=36.95, samples=78 iops : min= 15, max= 57, avg=30.94, stdev= 9.24, samples=78 write: IOPS=32, BW=130KiB/s (133kB/s)(5192KiB/39848msec); 0 zone resets slat (usec): min=25, max=32020, avg=322.21, stdev=1258.11 clat (msec): min=39, max=592, avg=243.24, stdev=66.34 lat (msec): min=39, max=592, avg=243.56, stdev=66.37 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 144], 10.00th=[ 169], 20.00th=[ 188], | 30.00th=[ 207], 40.00th=[ 220], 50.00th=[ 236], 60.00th=[ 253], | 70.00th=[ 275], 80.00th=[ 296], 90.00th=[ 326], 95.00th=[ 351], | 99.00th=[ 426], 99.50th=[ 468], 99.90th=[ 584], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 39, max= 223, per=24.76%, avg=129.73, stdev=35.70, samples=78 iops : min= 9, max= 55, avg=31.94, stdev= 8.93, samples=78 lat (msec) : 50=0.08%, 100=0.23%, 250=59.88%, 500=39.41%, 750=0.39% cpu : usr=0.22%, sys=1.91%, ctx=3827, 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=179878: Thu Aug 27 12:29:19 2026 read: IOPS=31, BW=126KiB/s (129kB/s)(4976KiB/39498msec) slat (usec): min=45, max=95935, avg=18556.29, stdev=10821.56 clat (msec): min=4, max=574, avg=233.74, stdev=67.14 lat (msec): min=5, max=643, avg=252.31, stdev=70.64 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 131], 10.00th=[ 157], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 228], 60.00th=[ 247], | 70.00th=[ 266], 80.00th=[ 288], 90.00th=[ 317], 95.00th=[ 342], | 99.00th=[ 443], 99.50th=[ 485], 99.90th=[ 558], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 31, max= 254, per=24.80%, avg=124.77, stdev=40.02, samples=77 iops : min= 7, max= 63, avg=30.69, stdev=10.03, samples=77 write: IOPS=33, BW=133KiB/s (136kB/s)(5264KiB/39498msec); 0 zone resets slat (usec): min=28, max=16555, avg=282.37, stdev=925.27 clat (msec): min=34, max=585, avg=241.06, stdev=64.81 lat (msec): min=34, max=587, avg=241.35, stdev=64.84 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 140], 10.00th=[ 163], 20.00th=[ 192], | 30.00th=[ 209], 40.00th=[ 224], 50.00th=[ 239], 60.00th=[ 255], | 70.00th=[ 271], 80.00th=[ 292], 90.00th=[ 321], 95.00th=[ 347], | 99.00th=[ 426], 99.50th=[ 460], 99.90th=[ 506], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 48, max= 207, per=25.36%, avg=132.87, stdev=34.94, samples=77 iops : min= 12, max= 51, avg=32.74, stdev= 8.76, samples=77 lat (msec) : 10=0.08%, 50=0.08%, 100=0.55%, 250=58.24%, 500=40.70% lat (msec) : 750=0.35% cpu : usr=0.33%, sys=1.78%, ctx=4006, majf=0, minf=15 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=179879: Thu Aug 27 12:29:19 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(4984KiB/39829msec) slat (usec): min=3046, max=80810, avg=18680.18, stdev=10588.21 clat (msec): min=16, max=556, avg=235.19, stdev=67.70 lat (msec): min=34, max=586, avg=253.87, stdev=70.87 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 133], 10.00th=[ 159], 20.00th=[ 182], | 30.00th=[ 199], 40.00th=[ 213], 50.00th=[ 228], 60.00th=[ 245], | 70.00th=[ 264], 80.00th=[ 288], 90.00th=[ 317], 95.00th=[ 351], | 99.00th=[ 472], 99.50th=[ 498], 99.90th=[ 542], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 31, max= 239, per=24.86%, avg=125.06, stdev=36.00, samples=78 iops : min= 7, max= 59, avg=30.74, stdev= 9.01, samples=78 write: IOPS=32, BW=132KiB/s (135kB/s)(5256KiB/39829msec); 0 zone resets slat (usec): min=30, max=25320, avg=387.71, stdev=1463.62 clat (msec): min=98, max=540, avg=241.60, stdev=65.45 lat (msec): min=98, max=540, avg=241.99, stdev=65.52 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 138], 10.00th=[ 159], 20.00th=[ 190], | 30.00th=[ 207], 40.00th=[ 222], 50.00th=[ 236], 60.00th=[ 255], | 70.00th=[ 275], 80.00th=[ 292], 90.00th=[ 321], 95.00th=[ 347], | 99.00th=[ 422], 99.50th=[ 498], 99.90th=[ 527], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 40, max= 278, per=25.03%, avg=131.14, stdev=42.00, samples=78 iops : min= 10, max= 69, avg=32.29, stdev=10.52, samples=78 lat (msec) : 20=0.04%, 50=0.04%, 100=0.35%, 250=59.80%, 500=39.30% lat (msec) : 750=0.47% cpu : usr=0.34%, sys=1.86%, ctx=4008, 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=179880: Thu Aug 27 12:29:19 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(5060KiB/39763msec) slat (usec): min=2856, max=84728, avg=18195.88, stdev=10600.31 clat (msec): min=93, max=495, avg=233.14, stdev=62.30 lat (msec): min=100, max=579, avg=251.34, stdev=65.52 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 136], 10.00th=[ 153], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 213], 50.00th=[ 230], 60.00th=[ 249], | 70.00th=[ 266], 80.00th=[ 288], 90.00th=[ 313], 95.00th=[ 338], | 99.00th=[ 393], 99.50th=[ 422], 99.90th=[ 489], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 15, max= 255, per=25.26%, avg=127.06, stdev=38.95, samples=78 iops : min= 3, max= 63, avg=31.27, stdev= 9.74, samples=78 write: IOPS=32, BW=130KiB/s (133kB/s)(5180KiB/39763msec); 0 zone resets slat (usec): min=25, max=18028, avg=295.99, stdev=939.31 clat (msec): min=98, max=546, avg=243.64, stdev=69.17 lat (msec): min=102, max=546, avg=243.94, stdev=69.18 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 138], 10.00th=[ 161], 20.00th=[ 190], | 30.00th=[ 205], 40.00th=[ 222], 50.00th=[ 236], 60.00th=[ 253], | 70.00th=[ 275], 80.00th=[ 300], 90.00th=[ 326], 95.00th=[ 363], | 99.00th=[ 464], 99.50th=[ 481], 99.90th=[ 535], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 63, max= 254, per=24.75%, avg=129.68, stdev=37.25, samples=78 iops : min= 15, max= 63, avg=31.91, stdev= 9.31, samples=78 lat (msec) : 100=0.27%, 250=59.30%, 500=40.27%, 750=0.16% cpu : usr=0.27%, sys=1.71%, ctx=4005, 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=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=504KiB/s (516kB/s), 125KiB/s-127KiB/s (128kB/s-130kB/s), io=19.6MiB (20.5MB), run=39498-39848msec WRITE: bw=524KiB/s (537kB/s), 130KiB/s-133KiB/s (133kB/s-136kB/s), io=20.4MiB (21.4MB), run=39498-39848msec 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=179890: Thu Aug 27 12:29:33 2026 read: IOPS=1, BW=61.1MiB/s (64.0MB/s)(40.0MiB/655msec) slat (nsec): min=46726k, max=46726k, avg=46725680.00, stdev= 0.00 clat (nsec): min=574574k, max=574574k, avg=574574147.00, stdev= 0.00 lat (nsec): min=621304k, max=621304k, avg=621304222.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.22%, ctx=5, 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=61.1MiB/s (64.0MB/s), 61.1MiB/s-61.1MiB/s (64.0MB/s-64.0MB/s), io=40.0MiB (41.9MB), run=655-655msec 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