== sanity test 398c: run fio to test AIO ================= 06:29:07 (1787826547) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.630678 s, 66.5 MB/s osc.lustre-OST0000-osc-ffff8f51603c0800.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=181338: Thu Aug 27 06:29:47 2026 write: IOPS=86, BW=344KiB/s (353kB/s)(10.0MiB/29739msec); 0 zone resets slat (usec): min=28, max=12879, avg=225.30, stdev=801.37 clat (msec): min=24, max=340, avg=184.67, stdev=40.51 lat (msec): min=24, max=340, avg=184.90, stdev=40.47 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 253], | 99.00th=[ 275], 99.50th=[ 296], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 207, max= 568, per=24.93%, avg=343.26, stdev=66.49, samples=58 iops : min= 51, max= 142, avg=85.45, stdev=16.64, samples=58 lat (msec) : 50=0.20%, 100=0.86%, 250=93.40%, 500=5.55% cpu : usr=0.15%, sys=1.11%, ctx=2834, 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=181339: Thu Aug 27 06:29:47 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29528msec); 0 zone resets slat (usec): min=30, max=20716, avg=203.65, stdev=870.60 clat (msec): min=21, max=339, avg=184.16, stdev=42.38 lat (msec): min=21, max=339, avg=184.37, stdev=42.38 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 125], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 231, max= 512, per=25.16%, avg=346.47, stdev=70.85, samples=58 iops : min= 57, max= 128, avg=86.24, stdev=17.73, samples=58 lat (msec) : 50=0.23%, 100=1.56%, 250=91.09%, 500=7.11% cpu : usr=0.20%, sys=0.87%, ctx=2344, 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=181340: Thu Aug 27 06:29:47 2026 write: IOPS=86, BW=345KiB/s (353kB/s)(10.0MiB/29693msec); 0 zone resets slat (usec): min=28, max=13049, avg=176.04, stdev=682.38 clat (msec): min=26, max=343, avg=184.59, stdev=41.06 lat (msec): min=26, max=343, avg=184.77, stdev=41.06 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 284], 99.50th=[ 313], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 223, max= 512, per=24.99%, avg=344.12, stdev=65.92, samples=58 iops : min= 55, max= 128, avg=85.64, stdev=16.53, samples=58 lat (msec) : 50=0.12%, 100=1.17%, 250=92.30%, 500=6.41% cpu : usr=0.09%, sys=0.90%, ctx=1688, 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=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=181341: Thu Aug 27 06:29:47 2026 write: IOPS=86, BW=344KiB/s (353kB/s)(10.0MiB/29732msec); 0 zone resets slat (usec): min=29, max=17060, avg=196.78, stdev=797.25 clat (msec): min=21, max=342, avg=184.62, stdev=39.96 lat (msec): min=21, max=342, avg=184.82, stdev=39.94 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 127], 10.00th=[ 134], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 253], | 99.00th=[ 271], 99.50th=[ 292], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 225, max= 512, per=24.98%, avg=344.02, stdev=77.44, samples=58 iops : min= 56, max= 128, avg=85.64, stdev=19.37, samples=58 lat (msec) : 50=0.23%, 100=0.90%, 250=93.20%, 500=5.66% cpu : usr=0.19%, sys=0.85%, ctx=2267, 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=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=1377KiB/s (1410kB/s), 344KiB/s-347KiB/s (353kB/s-355kB/s), io=40.0MiB (41.9MB), run=29528-29739msec 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=181356: Thu Aug 27 06:30:26 2026 read: IOPS=43, BW=175KiB/s (180kB/s)(5048KiB/28796msec) slat (usec): min=2706, max=59633, avg=12677.21, stdev=7174.22 clat (msec): min=43, max=325, avg=168.45, stdev=40.24 lat (msec): min=57, max=342, avg=181.13, stdev=41.29 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 109], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 66, max= 256, per=25.00%, avg=174.02, stdev=41.13, samples=57 iops : min= 16, max= 64, avg=43.07, stdev=10.29, samples=57 write: IOPS=45, BW=180KiB/s (185kB/s)(5192KiB/28796msec); 0 zone resets slat (usec): min=31, max=15874, avg=215.25, stdev=782.05 clat (msec): min=34, max=352, avg=175.23, stdev=40.60 lat (msec): min=35, max=352, avg=175.45, stdev=40.61 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 124], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 228], 95.00th=[ 251], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 44, max= 248, per=24.70%, avg=179.05, stdev=38.22, samples=57 iops : min= 11, max= 62, avg=44.35, stdev= 9.61, samples=57 lat (msec) : 50=0.12%, 100=1.33%, 250=94.02%, 500=4.53% cpu : usr=0.22%, sys=1.77%, ctx=4650, 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=181357: Thu Aug 27 06:30:26 2026 read: IOPS=43, BW=173KiB/s (177kB/s)(4976KiB/28794msec) slat (usec): min=2569, max=52355, avg=12914.59, stdev=7189.19 clat (msec): min=18, max=323, avg=169.54, stdev=42.22 lat (msec): min=24, max=344, avg=182.46, stdev=43.17 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 111], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 292], 99.50th=[ 313], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 71, max= 270, per=24.65%, avg=171.56, stdev=36.78, samples=57 iops : min= 17, max= 67, avg=42.47, stdev= 9.21, samples=57 write: IOPS=45, BW=183KiB/s (187kB/s)(5264KiB/28794msec); 0 zone resets slat (usec): min=32, max=11776, avg=186.72, stdev=613.44 clat (msec): min=58, max=363, avg=175.49, stdev=39.67 lat (msec): min=58, max=363, avg=175.68, stdev=39.71 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 121], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 230], 95.00th=[ 247], | 99.00th=[ 288], 99.50th=[ 309], 99.90th=[ 351], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 118, max= 255, per=25.10%, avg=182.00, stdev=38.29, samples=57 iops : min= 29, max= 63, avg=45.07, stdev= 9.57, samples=57 lat (msec) : 20=0.08%, 50=0.20%, 100=1.41%, 250=94.06%, 500=4.26% cpu : usr=0.26%, sys=1.87%, ctx=4405, 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=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=181358: Thu Aug 27 06:30:26 2026 read: IOPS=43, BW=174KiB/s (178kB/s)(4984KiB/28647msec) slat (usec): min=2244, max=61434, avg=12580.76, stdev=7011.35 clat (msec): min=22, max=343, avg=169.79, stdev=40.56 lat (msec): min=28, max=355, avg=182.38, stdev=41.73 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 114], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 305], 99.90th=[ 330], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 73, max= 272, per=25.00%, avg=174.00, stdev=37.42, samples=56 iops : min= 18, max= 68, avg=43.07, stdev= 9.41, samples=56 write: IOPS=45, BW=183KiB/s (188kB/s)(5256KiB/28647msec); 0 zone resets slat (usec): min=35, max=12478, avg=187.61, stdev=547.15 clat (msec): min=57, max=351, avg=172.83, stdev=38.39 lat (msec): min=57, max=354, avg=173.02, stdev=38.38 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 120], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 288], 99.50th=[ 309], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 80, max= 278, per=25.15%, avg=182.34, stdev=41.99, samples=56 iops : min= 20, max= 69, avg=45.18, stdev=10.49, samples=56 lat (msec) : 50=0.12%, 100=1.25%, 250=94.61%, 500=4.02% cpu : usr=0.29%, sys=1.71%, ctx=4540, 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=181359: Thu Aug 27 06:30:26 2026 read: IOPS=44, BW=177KiB/s (181kB/s)(5060KiB/28619msec) slat (usec): min=38, max=60358, avg=12751.89, stdev=7237.06 clat (msec): min=34, max=343, avg=170.81, stdev=41.68 lat (msec): min=40, max=370, avg=183.57, stdev=43.04 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 300], 99.50th=[ 305], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 87, max= 246, per=25.31%, avg=176.14, stdev=32.00, samples=56 iops : min= 21, max= 61, avg=43.61, stdev= 8.04, samples=56 write: IOPS=45, BW=181KiB/s (185kB/s)(5180KiB/28619msec); 0 zone resets slat (usec): min=36, max=14414, avg=207.48, stdev=683.72 clat (msec): min=72, max=349, avg=173.70, stdev=40.78 lat (msec): min=72, max=349, avg=173.91, stdev=40.77 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 116], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 228], 95.00th=[ 249], | 99.00th=[ 300], 99.50th=[ 305], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 88, max= 272, per=24.84%, avg=180.11, stdev=42.84, samples=56 iops : min= 22, max= 68, avg=44.61, stdev=10.76, samples=56 lat (msec) : 50=0.12%, 100=1.13%, 250=94.10%, 500=4.65% cpu : usr=0.27%, sys=1.74%, ctx=4507, 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=697KiB/s (714kB/s), 173KiB/s-177KiB/s (177kB/s-181kB/s), io=19.6MiB (20.5MB), run=28619-28796msec WRITE: bw=726KiB/s (743kB/s), 180KiB/s-183KiB/s (185kB/s-188kB/s), io=20.4MiB (21.4MB), run=28619-28796msec 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=181368: Thu Aug 27 06:30:36 2026 read: IOPS=2, BW=100MiB/s (105MB/s)(40.0MiB/399msec) slat (nsec): min=22457k, max=22457k, avg=22457432.00, stdev= 0.00 clat (nsec): min=352968k, max=352968k, avg=352967636.00, stdev= 0.00 lat (nsec): min=375429k, max=375429k, avg=375429048.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.02%, ctx=4, 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=100MiB/s (105MB/s), 100MiB/s-100MiB/s (105MB/s-105MB/s), io=40.0MiB (41.9MB), run=399-399msec 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