== sanity test 398c: run fio to test AIO ================= 01:55:42 (1789710942) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.177403 s, 236 MB/s osc.lustre-OST0000-osc-ffff8db5b1b0e000.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=147774: Fri Sep 18 01:56:33 2026 write: IOPS=54, BW=218KiB/s (224kB/s)(10.0MiB/46883msec); 0 zone resets slat (usec): min=22, max=4407, avg=147.86, stdev=210.76 clat (msec): min=47, max=592, avg=292.54, stdev=78.26 lat (msec): min=48, max=592, avg=292.68, stdev=78.28 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 182], 10.00th=[ 199], 20.00th=[ 224], | 30.00th=[ 247], 40.00th=[ 264], 50.00th=[ 284], 60.00th=[ 305], | 70.00th=[ 334], 80.00th=[ 359], 90.00th=[ 405], 95.00th=[ 435], | 99.00th=[ 477], 99.50th=[ 502], 99.90th=[ 567], 99.95th=[ 575], | 99.99th=[ 592] bw ( KiB/s): min= 111, max= 366, per=24.94%, avg=217.70, stdev=54.22, samples=93 iops : min= 27, max= 91, avg=54.24, stdev=13.60, samples=93 lat (msec) : 50=0.04%, 100=0.74%, 250=31.68%, 500=67.07%, 750=0.47% cpu : usr=0.12%, sys=0.60%, ctx=2958, 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=147775: Fri Sep 18 01:56:33 2026 write: IOPS=54, BW=219KiB/s (224kB/s)(10.0MiB/46838msec); 0 zone resets slat (usec): min=28, max=4400, avg=145.11, stdev=180.84 clat (msec): min=90, max=575, avg=292.21, stdev=77.37 lat (msec): min=90, max=575, avg=292.36, stdev=77.39 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 182], 10.00th=[ 201], 20.00th=[ 224], | 30.00th=[ 245], 40.00th=[ 266], 50.00th=[ 284], 60.00th=[ 305], | 70.00th=[ 326], 80.00th=[ 363], 90.00th=[ 401], 95.00th=[ 426], | 99.00th=[ 481], 99.50th=[ 514], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 575] bw ( KiB/s): min= 119, max= 368, per=24.94%, avg=217.71, stdev=52.79, samples=93 iops : min= 29, max= 92, avg=54.24, stdev=13.24, samples=93 lat (msec) : 100=0.62%, 250=31.84%, 500=66.84%, 750=0.70% cpu : usr=0.11%, sys=0.63%, ctx=3072, 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=147776: Fri Sep 18 01:56:33 2026 write: IOPS=54, BW=219KiB/s (224kB/s)(10.0MiB/46860msec); 0 zone resets slat (usec): min=26, max=3739, avg=152.36, stdev=195.23 clat (msec): min=78, max=571, avg=292.28, stdev=77.79 lat (msec): min=78, max=571, avg=292.44, stdev=77.81 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 182], 10.00th=[ 199], 20.00th=[ 224], | 30.00th=[ 245], 40.00th=[ 266], 50.00th=[ 284], 60.00th=[ 305], | 70.00th=[ 330], 80.00th=[ 359], 90.00th=[ 401], 95.00th=[ 430], | 99.00th=[ 481], 99.50th=[ 550], 99.90th=[ 567], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 119, max= 376, per=24.94%, avg=217.76, stdev=52.74, samples=93 iops : min= 29, max= 94, avg=54.26, stdev=13.26, samples=93 lat (msec) : 100=0.62%, 250=31.68%, 500=67.15%, 750=0.55% cpu : usr=0.13%, sys=0.61%, ctx=3173, 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=147777: Fri Sep 18 01:56:33 2026 write: IOPS=54, BW=219KiB/s (224kB/s)(10.0MiB/46819msec); 0 zone resets slat (usec): min=24, max=2234, avg=148.99, stdev=167.06 clat (msec): min=50, max=568, avg=292.29, stdev=78.18 lat (msec): min=51, max=568, avg=292.44, stdev=78.18 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 182], 10.00th=[ 201], 20.00th=[ 226], | 30.00th=[ 247], 40.00th=[ 266], 50.00th=[ 288], 60.00th=[ 309], | 70.00th=[ 334], 80.00th=[ 359], 90.00th=[ 401], 95.00th=[ 426], | 99.00th=[ 485], 99.50th=[ 510], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 127, max= 399, per=24.93%, avg=217.62, stdev=54.48, samples=93 iops : min= 31, max= 99, avg=54.22, stdev=13.64, samples=93 lat (msec) : 100=0.47%, 250=32.03%, 500=66.95%, 750=0.55% cpu : usr=0.08%, sys=0.66%, ctx=3020, 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=874KiB/s (895kB/s), 218KiB/s-219KiB/s (224kB/s-224kB/s), io=40.0MiB (41.9MB), run=46819-46883msec 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=147793: Fri Sep 18 01:57:09 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5048KiB/32104msec) slat (usec): min=1174, max=139953, avg=4234.94, stdev=5519.48 clat (msec): min=6, max=440, avg=125.13, stdev=38.31 lat (msec): min=10, max=445, avg=129.37, stdev=39.08 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 74], 10.00th=[ 85], 20.00th=[ 95], | 30.00th=[ 105], 40.00th=[ 113], 50.00th=[ 122], 60.00th=[ 131], | 70.00th=[ 142], 80.00th=[ 153], 90.00th=[ 174], 95.00th=[ 186], | 99.00th=[ 218], 99.50th=[ 257], 99.90th=[ 435], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 56, max= 280, per=24.88%, avg=155.52, stdev=53.78, samples=63 iops : min= 14, max= 70, avg=38.73, stdev=13.50, samples=63 write: IOPS=40, BW=162KiB/s (166kB/s)(5192KiB/32104msec); 0 zone resets slat (usec): min=27, max=2156, avg=156.25, stdev=164.77 clat (msec): min=59, max=655, avg=269.06, stdev=98.88 lat (msec): min=60, max=655, avg=269.22, stdev=98.89 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 148], 10.00th=[ 165], 20.00th=[ 186], | 30.00th=[ 207], 40.00th=[ 228], 50.00th=[ 247], 60.00th=[ 271], | 70.00th=[ 296], 80.00th=[ 355], 90.00th=[ 414], 95.00th=[ 460], | 99.00th=[ 550], 99.50th=[ 575], 99.90th=[ 651], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 79, max= 272, per=24.59%, avg=159.83, stdev=47.43, samples=63 iops : min= 19, max= 68, avg=39.81, stdev=11.95, samples=63 lat (msec) : 10=0.04%, 20=0.08%, 50=0.51%, 100=12.54%, 250=61.91% lat (msec) : 500=23.55%, 750=1.37% cpu : usr=0.25%, sys=1.32%, ctx=5041, 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=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=147794: Fri Sep 18 01:57:09 2026 read: IOPS=38, BW=156KiB/s (160kB/s)(4976KiB/31929msec) slat (usec): min=36, max=13870, avg=4033.92, stdev=1706.88 clat (msec): min=4, max=254, avg=123.93, stdev=35.54 lat (msec): min=7, max=259, avg=127.97, stdev=36.07 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 75], 10.00th=[ 85], 20.00th=[ 95], | 30.00th=[ 104], 40.00th=[ 113], 50.00th=[ 122], 60.00th=[ 130], | 70.00th=[ 138], 80.00th=[ 153], 90.00th=[ 171], 95.00th=[ 188], | 99.00th=[ 222], 99.50th=[ 228], 99.90th=[ 251], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 55, max= 296, per=24.87%, avg=155.44, stdev=56.78, samples=63 iops : min= 13, max= 74, avg=38.71, stdev=14.25, samples=63 write: IOPS=41, BW=165KiB/s (169kB/s)(5264KiB/31929msec); 0 zone resets slat (usec): min=23, max=1699, avg=149.04, stdev=135.35 clat (msec): min=39, max=568, avg=266.79, stdev=98.10 lat (msec): min=39, max=569, avg=266.94, stdev=98.11 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 144], 10.00th=[ 161], 20.00th=[ 184], | 30.00th=[ 207], 40.00th=[ 226], 50.00th=[ 249], 60.00th=[ 271], | 70.00th=[ 300], 80.00th=[ 355], 90.00th=[ 414], 95.00th=[ 451], | 99.00th=[ 535], 99.50th=[ 550], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 80, max= 280, per=25.25%, avg=164.13, stdev=46.65, samples=63 iops : min= 20, max= 70, avg=40.89, stdev=11.72, samples=63 lat (msec) : 10=0.12%, 20=0.27%, 50=0.62%, 100=12.34%, 250=61.45% lat (msec) : 500=23.79%, 750=1.41% cpu : usr=0.20%, sys=1.32%, ctx=5191, 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=147795: Fri Sep 18 01:57:09 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4984KiB/32093msec) slat (usec): min=1223, max=94397, avg=4167.40, stdev=4942.37 clat (msec): min=5, max=413, avg=124.69, stdev=40.05 lat (msec): min=9, max=415, avg=128.86, stdev=40.98 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 75], 10.00th=[ 84], 20.00th=[ 94], | 30.00th=[ 104], 40.00th=[ 112], 50.00th=[ 122], 60.00th=[ 130], | 70.00th=[ 140], 80.00th=[ 153], 90.00th=[ 171], 95.00th=[ 190], | 99.00th=[ 247], 99.50th=[ 326], 99.90th=[ 380], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 56, max= 296, per=24.71%, avg=154.44, stdev=56.01, samples=63 iops : min= 14, max= 74, avg=38.48, stdev=14.12, samples=63 write: IOPS=40, BW=164KiB/s (168kB/s)(5256KiB/32093msec); 0 zone resets slat (usec): min=34, max=2737, avg=144.37, stdev=135.36 clat (msec): min=43, max=583, avg=267.73, stdev=98.76 lat (msec): min=43, max=583, avg=267.88, stdev=98.76 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 140], 10.00th=[ 159], 20.00th=[ 184], | 30.00th=[ 209], 40.00th=[ 228], 50.00th=[ 247], 60.00th=[ 271], | 70.00th=[ 300], 80.00th=[ 355], 90.00th=[ 418], 95.00th=[ 460], | 99.00th=[ 527], 99.50th=[ 550], 99.90th=[ 575], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 72, max= 248, per=24.77%, avg=161.00, stdev=42.95, samples=63 iops : min= 18, max= 62, avg=40.11, stdev=10.76, samples=63 lat (msec) : 10=0.08%, 20=0.20%, 50=0.31%, 100=12.93%, 250=61.05% lat (msec) : 500=24.06%, 750=1.37% cpu : usr=0.21%, sys=1.36%, ctx=4992, 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=147796: Fri Sep 18 01:57:09 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(5060KiB/31808msec) slat (usec): min=1396, max=12800, avg=3931.26, stdev=1639.41 clat (msec): min=6, max=304, avg=124.58, stdev=35.77 lat (msec): min=9, max=308, avg=128.52, stdev=36.21 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 74], 10.00th=[ 84], 20.00th=[ 95], | 30.00th=[ 104], 40.00th=[ 113], 50.00th=[ 123], 60.00th=[ 130], | 70.00th=[ 142], 80.00th=[ 153], 90.00th=[ 171], 95.00th=[ 186], | 99.00th=[ 218], 99.50th=[ 243], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 56, max= 280, per=25.43%, avg=158.95, stdev=52.70, samples=63 iops : min= 14, max= 70, avg=39.60, stdev=13.21, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5180KiB/31808msec); 0 zone resets slat (usec): min=39, max=6365, avg=154.91, stdev=232.86 clat (msec): min=59, max=587, avg=266.41, stdev=96.59 lat (msec): min=59, max=587, avg=266.56, stdev=96.61 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 182], | 30.00th=[ 207], 40.00th=[ 228], 50.00th=[ 247], 60.00th=[ 271], | 70.00th=[ 296], 80.00th=[ 355], 90.00th=[ 414], 95.00th=[ 451], | 99.00th=[ 542], 99.50th=[ 558], 99.90th=[ 567], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 64, max= 280, per=24.98%, avg=162.38, stdev=45.47, samples=63 iops : min= 16, max= 70, avg=40.44, stdev=11.47, samples=63 lat (msec) : 10=0.08%, 20=0.16%, 50=0.27%, 100=12.11%, 250=62.81% lat (msec) : 500=23.40%, 750=1.17% cpu : usr=0.22%, sys=1.32%, ctx=5196, 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=625KiB/s (640kB/s), 155KiB/s-159KiB/s (159kB/s-163kB/s), io=19.6MiB (20.5MB), run=31808-32104msec WRITE: bw=651KiB/s (666kB/s), 162KiB/s-165KiB/s (166kB/s-169kB/s), io=20.4MiB (21.4MB), run=31808-32104msec 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=147804: Fri Sep 18 01:57:13 2026 read: IOPS=6, BW=267MiB/s (280MB/s)(40.0MiB/150msec) slat (nsec): min=14472k, max=14472k, avg=14472269.00, stdev= 0.00 clat (nsec): min=127044k, max=127044k, avg=127043875.00, stdev= 0.00 lat (nsec): min=141521k, max=141521k, avg=141520642.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 128], 60.00th=[ 128], | 70.00th=[ 128], 80.00th=[ 128], 90.00th=[ 128], 95.00th=[ 128], | 99.00th=[ 128], 99.50th=[ 128], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=8.05%, ctx=42, 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=267MiB/s (280MB/s), 267MiB/s-267MiB/s (280MB/s-280MB/s), io=40.0MiB (41.9MB), run=150-150msec 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