== sanity test 398c: run fio to test AIO ================= 16:29:51 (1788467391) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.440555 s, 95.2 MB/s osc.lustre-OST0000-osc-ffff94ec82c6e000.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=146026: Thu Sep 3 16:32:02 2026 write: IOPS=20, BW=83.2KiB/s (85.2kB/s)(10.0MiB/123127msec); 0 zone resets slat (usec): min=22, max=9924, avg=206.35, stdev=607.18 clat (msec): min=83, max=1403, avg=768.95, stdev=175.15 lat (msec): min=83, max=1403, avg=769.16, stdev=175.14 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 514], 10.00th=[ 575], 20.00th=[ 634], | 30.00th=[ 693], 40.00th=[ 726], 50.00th=[ 760], 60.00th=[ 802], | 70.00th=[ 852], 80.00th=[ 902], 90.00th=[ 986], 95.00th=[ 1062], | 99.00th=[ 1217], 99.50th=[ 1301], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 239, per=25.34%, avg=84.14, stdev=34.82, samples=240 iops : min= 1, max= 59, avg=20.62, stdev= 8.73, samples=240 lat (msec) : 100=0.04%, 250=1.25%, 500=3.05%, 750=43.01%, 1000=43.63% lat (msec) : 2000=9.02% cpu : usr=0.06%, sys=0.26%, ctx=2198, 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=146027: Thu Sep 3 16:32:02 2026 write: IOPS=20, BW=83.1KiB/s (85.1kB/s)(10.0MiB/123188msec); 0 zone resets slat (usec): min=25, max=9406, avg=187.73, stdev=529.13 clat (msec): min=199, max=1398, avg=768.99, stdev=168.78 lat (msec): min=200, max=1398, avg=769.18, stdev=168.78 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 514], 10.00th=[ 575], 20.00th=[ 642], | 30.00th=[ 684], 40.00th=[ 726], 50.00th=[ 768], 60.00th=[ 802], | 70.00th=[ 852], 80.00th=[ 902], 90.00th=[ 969], 95.00th=[ 1045], | 99.00th=[ 1217], 99.50th=[ 1318], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 223, per=25.05%, avg=83.16, stdev=30.13, samples=243 iops : min= 1, max= 55, avg=20.38, stdev= 7.54, samples=243 lat (msec) : 250=0.66%, 500=3.83%, 750=41.29%, 1000=47.07%, 2000=7.15% cpu : usr=0.04%, sys=0.26%, ctx=2034, 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=146028: Thu Sep 3 16:32:02 2026 write: IOPS=20, BW=83.2KiB/s (85.2kB/s)(10.0MiB/123036msec); 0 zone resets slat (usec): min=24, max=12388, avg=204.12, stdev=649.60 clat (msec): min=189, max=1525, avg=767.77, stdev=172.96 lat (msec): min=189, max=1525, avg=767.97, stdev=172.97 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 498], 10.00th=[ 575], 20.00th=[ 634], | 30.00th=[ 684], 40.00th=[ 718], 50.00th=[ 751], 60.00th=[ 802], | 70.00th=[ 844], 80.00th=[ 902], 90.00th=[ 986], 95.00th=[ 1053], | 99.00th=[ 1234], 99.50th=[ 1351], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1519] bw ( KiB/s): min= 23, max= 191, per=24.94%, avg=82.81, stdev=24.79, samples=244 iops : min= 5, max= 47, avg=20.29, stdev= 6.22, samples=244 lat (msec) : 250=0.62%, 500=4.41%, 750=43.67%, 1000=42.77%, 2000=8.52% cpu : usr=0.06%, sys=0.28%, ctx=2109, 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=146029: Thu Sep 3 16:32:02 2026 write: IOPS=20, BW=83.3KiB/s (85.3kB/s)(10.0MiB/122934msec); 0 zone resets slat (usec): min=23, max=13233, avg=211.64, stdev=670.86 clat (msec): min=86, max=1625, avg=767.35, stdev=174.24 lat (msec): min=86, max=1625, avg=767.56, stdev=174.27 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 510], 10.00th=[ 575], 20.00th=[ 642], | 30.00th=[ 684], 40.00th=[ 726], 50.00th=[ 760], 60.00th=[ 793], | 70.00th=[ 835], 80.00th=[ 894], 90.00th=[ 978], 95.00th=[ 1062], | 99.00th=[ 1234], 99.50th=[ 1301], 99.90th=[ 1469], 99.95th=[ 1569], | 99.99th=[ 1620] bw ( KiB/s): min= 15, max= 207, per=24.94%, avg=82.80, stdev=27.66, samples=244 iops : min= 3, max= 51, avg=20.29, stdev= 6.93, samples=244 lat (msec) : 100=0.04%, 250=0.74%, 500=3.36%, 750=43.71%, 1000=43.36% lat (msec) : 2000=8.79% cpu : usr=0.06%, sys=0.26%, ctx=2271, 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=332KiB/s (340kB/s), 83.1KiB/s-83.3KiB/s (85.1kB/s-85.3kB/s), io=40.0MiB (41.9MB), run=122934-123188msec 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=146057: Thu Sep 3 16:33:34 2026 read: IOPS=14, BW=59.3KiB/s (60.8kB/s)(5048KiB/85054msec) slat (usec): min=36, max=36740, avg=10771.26, stdev=5373.86 clat (msec): min=22, max=633, avg=335.24, stdev=75.25 lat (msec): min=27, max=646, avg=346.02, stdev=75.95 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 228], 10.00th=[ 251], 20.00th=[ 279], | 30.00th=[ 296], 40.00th=[ 313], 50.00th=[ 330], 60.00th=[ 351], | 70.00th=[ 372], 80.00th=[ 397], 90.00th=[ 430], 95.00th=[ 464], | 99.00th=[ 527], 99.50th=[ 542], 99.90th=[ 584], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 7, max= 152, per=24.98%, avg=58.70, stdev=25.27, samples=169 iops : min= 1, max= 38, avg=14.24, stdev= 6.37, samples=169 write: IOPS=15, BW=61.0KiB/s (62.5kB/s)(5192KiB/85054msec); 0 zone resets slat (usec): min=33, max=11610, avg=232.67, stdev=600.08 clat (msec): min=117, max=1431, avg=711.05, stdev=177.68 lat (msec): min=118, max=1431, avg=711.28, stdev=177.69 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 430], 10.00th=[ 489], 20.00th=[ 567], | 30.00th=[ 609], 40.00th=[ 659], 50.00th=[ 701], 60.00th=[ 751], | 70.00th=[ 802], 80.00th=[ 860], 90.00th=[ 936], 95.00th=[ 995], | 99.00th=[ 1150], 99.50th=[ 1217], 99.90th=[ 1385], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 15, max= 136, per=24.68%, avg=60.46, stdev=21.13, samples=169 iops : min= 3, max= 34, avg=14.69, stdev= 5.27, samples=169 lat (msec) : 50=0.12%, 100=0.16%, 250=4.77%, 500=49.02%, 750=25.86% lat (msec) : 1000=17.73%, 2000=2.34% cpu : usr=0.11%, sys=0.65%, ctx=4502, 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=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=146058: Thu Sep 3 16:33:34 2026 read: IOPS=14, BW=58.4KiB/s (59.8kB/s)(4976KiB/85243msec) slat (usec): min=2553, max=47359, avg=10913.27, stdev=5469.12 clat (msec): min=11, max=660, avg=336.47, stdev=74.85 lat (msec): min=18, max=667, avg=347.40, stdev=75.24 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 232], 10.00th=[ 253], 20.00th=[ 279], | 30.00th=[ 296], 40.00th=[ 313], 50.00th=[ 330], 60.00th=[ 347], | 70.00th=[ 368], 80.00th=[ 393], 90.00th=[ 435], 95.00th=[ 472], | 99.00th=[ 535], 99.50th=[ 567], 99.90th=[ 625], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 7, max= 120, per=24.57%, avg=57.74, stdev=25.27, samples=169 iops : min= 1, max= 30, avg=14.01, stdev= 6.34, samples=169 write: IOPS=15, BW=61.8KiB/s (63.2kB/s)(5264KiB/85243msec); 0 zone resets slat (usec): min=32, max=13438, avg=289.00, stdev=855.95 clat (msec): min=277, max=1417, avg=706.13, stdev=172.92 lat (msec): min=278, max=1418, avg=706.42, stdev=172.88 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 430], 10.00th=[ 493], 20.00th=[ 567], | 30.00th=[ 609], 40.00th=[ 651], 50.00th=[ 701], 60.00th=[ 743], | 70.00th=[ 785], 80.00th=[ 844], 90.00th=[ 927], 95.00th=[ 995], | 99.00th=[ 1150], 99.50th=[ 1217], 99.90th=[ 1401], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 15, max= 127, per=25.00%, avg=61.24, stdev=19.25, samples=169 iops : min= 3, max= 31, avg=14.88, stdev= 4.81, samples=169 lat (msec) : 20=0.12%, 50=0.12%, 100=0.12%, 250=3.87%, 500=48.95% lat (msec) : 750=26.91%, 1000=17.42%, 2000=2.50% cpu : usr=0.10%, sys=0.65%, ctx=4913, 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=146059: Thu Sep 3 16:33:34 2026 read: IOPS=14, BW=58.5KiB/s (59.9kB/s)(4984KiB/85206msec) slat (usec): min=2721, max=37061, avg=10782.79, stdev=5375.00 clat (msec): min=5, max=662, avg=335.55, stdev=75.87 lat (msec): min=14, max=669, avg=346.34, stdev=76.22 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 234], 10.00th=[ 253], 20.00th=[ 275], | 30.00th=[ 296], 40.00th=[ 313], 50.00th=[ 330], 60.00th=[ 347], | 70.00th=[ 368], 80.00th=[ 393], 90.00th=[ 435], 95.00th=[ 460], | 99.00th=[ 535], 99.50th=[ 567], 99.90th=[ 634], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7, max= 136, per=24.77%, avg=58.20, stdev=25.03, samples=169 iops : min= 1, max= 34, avg=14.12, stdev= 6.30, samples=169 write: IOPS=15, BW=61.7KiB/s (63.2kB/s)(5256KiB/85206msec); 0 zone resets slat (usec): min=34, max=7260, avg=213.26, stdev=451.75 clat (msec): min=214, max=1392, avg=707.30, stdev=168.41 lat (msec): min=215, max=1395, avg=707.52, stdev=168.42 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 435], 10.00th=[ 498], 20.00th=[ 567], | 30.00th=[ 617], 40.00th=[ 659], 50.00th=[ 701], 60.00th=[ 743], | 70.00th=[ 793], 80.00th=[ 844], 90.00th=[ 936], 95.00th=[ 986], | 99.00th=[ 1116], 99.50th=[ 1133], 99.90th=[ 1351], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 23, max= 112, per=24.88%, avg=60.95, stdev=19.99, samples=169 iops : min= 5, max= 28, avg=14.80, stdev= 4.97, samples=169 lat (msec) : 10=0.04%, 20=0.04%, 50=0.16%, 100=0.16%, 250=3.91% lat (msec) : 500=48.48%, 750=27.58%, 1000=17.54%, 2000=2.11% cpu : usr=0.11%, sys=0.68%, ctx=4761, 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=146060: Thu Sep 3 16:33:34 2026 read: IOPS=14, BW=59.6KiB/s (61.1kB/s)(5060KiB/84836msec) slat (usec): min=2559, max=45408, avg=11204.85, stdev=5771.88 clat (msec): min=14, max=793, avg=341.04, stdev=78.94 lat (msec): min=29, max=805, avg=352.25, stdev=79.39 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 239], 10.00th=[ 257], 20.00th=[ 279], | 30.00th=[ 296], 40.00th=[ 317], 50.00th=[ 334], 60.00th=[ 355], | 70.00th=[ 376], 80.00th=[ 405], 90.00th=[ 435], 95.00th=[ 477], | 99.00th=[ 558], 99.50th=[ 567], 99.90th=[ 634], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 120, per=25.58%, avg=60.11, stdev=22.06, samples=166 iops : min= 1, max= 30, avg=14.60, stdev= 5.54, samples=166 write: IOPS=15, BW=61.1KiB/s (62.5kB/s)(5180KiB/84836msec); 0 zone resets slat (usec): min=29, max=8915, avg=260.21, stdev=637.08 clat (msec): min=132, max=1430, avg=702.12, stdev=168.37 lat (msec): min=133, max=1430, avg=702.38, stdev=168.36 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 439], 10.00th=[ 498], 20.00th=[ 558], | 30.00th=[ 609], 40.00th=[ 651], 50.00th=[ 693], 60.00th=[ 743], | 70.00th=[ 785], 80.00th=[ 852], 90.00th=[ 919], 95.00th=[ 978], | 99.00th=[ 1099], 99.50th=[ 1133], 99.90th=[ 1401], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 15, max= 112, per=24.62%, avg=60.31, stdev=19.38, samples=168 iops : min= 3, max= 28, avg=14.65, stdev= 4.85, samples=168 lat (msec) : 20=0.04%, 50=0.27%, 100=0.12%, 250=3.67%, 500=49.41% lat (msec) : 750=27.58%, 1000=16.99%, 2000=1.91% cpu : usr=0.11%, sys=0.71%, ctx=4993, 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=235KiB/s (241kB/s), 58.4KiB/s-59.6KiB/s (59.8kB/s-61.1kB/s), io=19.6MiB (20.5MB), run=84836-85243msec WRITE: bw=245KiB/s (251kB/s), 61.0KiB/s-61.8KiB/s (62.5kB/s-63.2kB/s), io=20.4MiB (21.4MB), run=84836-85243msec 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=146076: Thu Sep 3 16:33:43 2026 read: IOPS=2, BW=95.7MiB/s (100MB/s)(40.0MiB/418msec) slat (nsec): min=26846k, max=26846k, avg=26845610.00, stdev= 0.00 clat (nsec): min=375398k, max=375398k, avg=375398347.00, stdev= 0.00 lat (nsec): min=402248k, max=402248k, avg=402248116.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.64%, ctx=7, majf=0, minf=8 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=95.7MiB/s (100MB/s), 95.7MiB/s-95.7MiB/s (100MB/s-100MB/s), io=40.0MiB (41.9MB), run=418-418msec 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