== sanity test 398c: run fio to test AIO ================= 09:18:38 (1789132718) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.600843 s, 69.8 MB/s osc.lustre-OST0000-osc-ffff9b325d9c0800.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=144203: Fri Sep 11 09:21:55 2026 write: IOPS=13, BW=55.9KiB/s (57.2kB/s)(10.0MiB/183238msec); 0 zone resets slat (usec): min=22, max=24271, avg=238.36, stdev=864.17 clat (msec): min=304, max=2392, avg=1143.97, stdev=330.40 lat (msec): min=304, max=2392, avg=1144.21, stdev=330.38 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 684], 10.00th=[ 785], 20.00th=[ 869], | 30.00th=[ 953], 40.00th=[ 1028], 50.00th=[ 1099], 60.00th=[ 1167], | 70.00th=[ 1284], 80.00th=[ 1401], 90.00th=[ 1603], 95.00th=[ 1754], | 99.00th=[ 2072], 99.50th=[ 2165], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 128, per=26.19%, avg=58.40, stdev=32.49, samples=344 iops : min= 1, max= 32, avg=14.06, stdev= 8.16, samples=344 lat (msec) : 500=1.25%, 750=6.17%, 1000=29.57%, 2000=61.60%, >=2000=1.41% cpu : usr=0.04%, sys=0.22%, ctx=1595, 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=144204: Fri Sep 11 09:21:55 2026 write: IOPS=14, BW=56.1KiB/s (57.4kB/s)(10.0MiB/182581msec); 0 zone resets slat (usec): min=23, max=25513, avg=275.94, stdev=1184.31 clat (msec): min=201, max=2540, avg=1140.26, stdev=346.13 lat (msec): min=201, max=2540, avg=1140.54, stdev=346.10 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 642], 10.00th=[ 751], 20.00th=[ 869], | 30.00th=[ 944], 40.00th=[ 1028], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1284], 80.00th=[ 1418], 90.00th=[ 1569], 95.00th=[ 1770], | 99.00th=[ 2165], 99.50th=[ 2333], 99.90th=[ 2433], 99.95th=[ 2467], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 153, per=25.88%, avg=57.71, stdev=30.40, samples=348 iops : min= 1, max= 38, avg=13.89, stdev= 7.62, samples=348 lat (msec) : 250=0.27%, 500=1.41%, 750=8.12%, 1000=27.42%, 2000=61.09% lat (msec) : >=2000=1.68% cpu : usr=0.05%, sys=0.23%, ctx=1750, 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=144205: Fri Sep 11 09:21:55 2026 write: IOPS=13, BW=55.9KiB/s (57.3kB/s)(10.0MiB/183022msec); 0 zone resets slat (usec): min=22, max=25019, avg=257.04, stdev=938.33 clat (msec): min=176, max=2444, avg=1142.35, stdev=333.05 lat (msec): min=177, max=2444, avg=1142.61, stdev=333.04 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 684], 10.00th=[ 768], 20.00th=[ 877], | 30.00th=[ 944], 40.00th=[ 1020], 50.00th=[ 1099], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1401], 90.00th=[ 1569], 95.00th=[ 1754], | 99.00th=[ 2072], 99.50th=[ 2232], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 128, per=25.66%, avg=57.22, stdev=28.08, samples=351 iops : min= 1, max= 32, avg=13.76, stdev= 7.07, samples=351 lat (msec) : 250=0.04%, 500=1.52%, 750=7.23%, 1000=28.40%, 2000=61.60% lat (msec) : >=2000=1.21% cpu : usr=0.05%, sys=0.23%, ctx=1841, 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=144206: Fri Sep 11 09:21:55 2026 write: IOPS=13, BW=55.9KiB/s (57.3kB/s)(10.0MiB/183023msec); 0 zone resets slat (usec): min=22, max=27084, avg=304.93, stdev=1400.24 clat (msec): min=220, max=2445, avg=1142.09, stdev=337.53 lat (msec): min=220, max=2445, avg=1142.39, stdev=337.53 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 667], 10.00th=[ 760], 20.00th=[ 877], | 30.00th=[ 953], 40.00th=[ 1036], 50.00th=[ 1116], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1401], 90.00th=[ 1569], 95.00th=[ 1754], | 99.00th=[ 2106], 99.50th=[ 2140], 99.90th=[ 2400], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 143, per=25.58%, avg=57.05, stdev=31.73, samples=352 iops : min= 1, max= 35, avg=13.72, stdev= 7.95, samples=352 lat (msec) : 250=0.62%, 500=1.45%, 750=7.15%, 1000=25.70%, 2000=63.20% lat (msec) : >=2000=1.88% cpu : usr=0.04%, sys=0.26%, ctx=1907, 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 Run status group 0 (all jobs): WRITE: bw=224KiB/s (229kB/s), 55.9KiB/s-56.1KiB/s (57.2kB/s-57.4kB/s), io=40.0MiB (41.9MB), run=182581-183238msec 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=144242: Fri Sep 11 09:24:06 2026 read: IOPS=10, BW=42.4KiB/s (43.4kB/s)(5048KiB/119133msec) slat (usec): min=3087, max=75128, avg=16731.68, stdev=9364.00 clat (msec): min=32, max=945, avg=473.54, stdev=128.42 lat (msec): min=50, max=954, avg=490.28, stdev=130.06 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 309], 10.00th=[ 334], 20.00th=[ 368], | 30.00th=[ 401], 40.00th=[ 430], 50.00th=[ 460], 60.00th=[ 489], | 70.00th=[ 523], 80.00th=[ 567], 90.00th=[ 634], 95.00th=[ 726], | 99.00th=[ 860], 99.50th=[ 877], 99.90th=[ 911], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 102, per=25.01%, avg=42.02, stdev=19.57, samples=234 iops : min= 1, max= 25, avg= 9.95, stdev= 4.90, samples=234 write: IOPS=10, BW=43.6KiB/s (44.6kB/s)(5192KiB/119133msec); 0 zone resets slat (usec): min=31, max=21270, avg=343.38, stdev=1209.18 clat (msec): min=121, max=1997, avg=987.48, stdev=271.49 lat (msec): min=121, max=1997, avg=987.83, stdev=271.53 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 609], 10.00th=[ 667], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 944], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1385], 95.00th=[ 1502], | 99.00th=[ 1720], 99.50th=[ 1770], 99.90th=[ 1938], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 95, per=24.75%, avg=43.30, stdev=19.04, samples=233 iops : min= 1, max= 23, avg=10.27, stdev= 4.76, samples=233 lat (msec) : 50=0.04%, 100=0.16%, 250=0.59%, 500=31.02%, 750=24.53% lat (msec) : 1000=22.38%, 2000=21.29% cpu : usr=0.13%, sys=0.77%, ctx=4680, 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=144243: Fri Sep 11 09:24:06 2026 read: IOPS=10, BW=41.8KiB/s (42.8kB/s)(4976KiB/119017msec) slat (usec): min=52, max=65708, avg=16839.25, stdev=9100.59 clat (msec): min=19, max=987, avg=469.19, stdev=127.21 lat (msec): min=19, max=996, avg=486.04, stdev=128.73 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 313], 10.00th=[ 334], 20.00th=[ 372], | 30.00th=[ 401], 40.00th=[ 426], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 514], 80.00th=[ 558], 90.00th=[ 642], 95.00th=[ 735], | 99.00th=[ 844], 99.50th=[ 885], 99.90th=[ 936], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 111, per=24.68%, avg=41.47, stdev=21.23, samples=234 iops : min= 1, max= 27, avg= 9.81, stdev= 5.31, samples=234 write: IOPS=11, BW=44.2KiB/s (45.3kB/s)(5264KiB/119017msec); 0 zone resets slat (usec): min=34, max=24467, avg=410.49, stdev=1481.37 clat (msec): min=176, max=2027, avg=986.40, stdev=279.59 lat (msec): min=176, max=2027, avg=986.82, stdev=279.63 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 617], 10.00th=[ 676], 20.00th=[ 751], | 30.00th=[ 818], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 1011], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1385], 95.00th=[ 1519], | 99.00th=[ 1687], 99.50th=[ 1754], 99.90th=[ 1955], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 103, per=24.94%, avg=43.64, stdev=18.48, samples=235 iops : min= 1, max= 25, avg=10.35, stdev= 4.66, samples=235 lat (msec) : 20=0.04%, 50=0.08%, 100=0.16%, 250=0.70%, 500=32.15% lat (msec) : 750=23.79%, 1000=21.64%, 2000=21.41%, >=2000=0.04% cpu : usr=0.13%, sys=0.77%, ctx=4594, 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=144244: Fri Sep 11 09:24:06 2026 read: IOPS=10, BW=41.8KiB/s (42.8kB/s)(4984KiB/119288msec) slat (usec): min=2909, max=75334, avg=17130.90, stdev=9508.16 clat (msec): min=20, max=981, avg=470.19, stdev=130.98 lat (msec): min=24, max=995, avg=487.33, stdev=132.53 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 309], 10.00th=[ 334], 20.00th=[ 368], | 30.00th=[ 397], 40.00th=[ 426], 50.00th=[ 456], 60.00th=[ 485], | 70.00th=[ 518], 80.00th=[ 567], 90.00th=[ 625], 95.00th=[ 726], | 99.00th=[ 869], 99.50th=[ 911], 99.90th=[ 978], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 133, per=24.81%, avg=41.68, stdev=21.48, samples=234 iops : min= 1, max= 33, avg= 9.86, stdev= 5.38, samples=234 write: IOPS=11, BW=44.1KiB/s (45.1kB/s)(5256KiB/119288msec); 0 zone resets slat (usec): min=33, max=24266, avg=421.30, stdev=1420.57 clat (msec): min=42, max=2038, avg=987.17, stdev=275.97 lat (msec): min=42, max=2038, avg=987.59, stdev=275.98 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 818], 40.00th=[ 894], 50.00th=[ 944], 60.00th=[ 1011], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1385], 95.00th=[ 1485], | 99.00th=[ 1703], 99.50th=[ 1787], 99.90th=[ 2005], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 103, per=24.90%, avg=43.57, stdev=20.60, samples=235 iops : min= 1, max= 25, avg=10.34, stdev= 5.17, samples=235 lat (msec) : 50=0.20%, 100=0.16%, 250=0.55%, 500=31.52%, 750=23.75% lat (msec) : 1000=22.34%, 2000=21.41%, >=2000=0.08% cpu : usr=0.14%, sys=0.82%, ctx=4760, 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=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=144245: Fri Sep 11 09:24:06 2026 read: IOPS=10, BW=42.6KiB/s (43.6kB/s)(5060KiB/118757msec) slat (usec): min=3528, max=65324, avg=16839.77, stdev=9540.39 clat (msec): min=20, max=1075, avg=470.66, stdev=135.60 lat (msec): min=29, max=1082, avg=487.51, stdev=137.36 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 309], 10.00th=[ 330], 20.00th=[ 368], | 30.00th=[ 397], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 481], | 70.00th=[ 518], 80.00th=[ 567], 90.00th=[ 642], 95.00th=[ 743], | 99.00th=[ 877], 99.50th=[ 927], 99.90th=[ 1070], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 96, per=25.31%, avg=42.52, stdev=18.64, samples=233 iops : min= 1, max= 24, avg=10.07, stdev= 4.68, samples=233 write: IOPS=10, BW=43.6KiB/s (44.7kB/s)(5180KiB/118757msec); 0 zone resets slat (usec): min=33, max=15021, avg=371.27, stdev=1150.92 clat (msec): min=450, max=2060, avg=987.47, stdev=264.79 lat (msec): min=451, max=2061, avg=987.85, stdev=264.80 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 609], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1368], 95.00th=[ 1485], | 99.00th=[ 1653], 99.50th=[ 1720], 99.90th=[ 2039], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 111, per=24.53%, avg=42.92, stdev=20.20, samples=235 iops : min= 1, max= 27, avg=10.17, stdev= 5.06, samples=235 lat (msec) : 50=0.16%, 100=0.23%, 250=0.78%, 500=31.09%, 750=24.18% lat (msec) : 1000=21.80%, 2000=21.68%, >=2000=0.08% cpu : usr=0.14%, sys=0.75%, ctx=4477, 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=168KiB/s (172kB/s), 41.8KiB/s-42.6KiB/s (42.8kB/s-43.6kB/s), io=19.6MiB (20.5MB), run=118757-119288msec WRITE: bw=175KiB/s (179kB/s), 43.6KiB/s-44.2KiB/s (44.6kB/s-45.3kB/s), io=20.4MiB (21.4MB), run=118757-119288msec 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=144269: Fri Sep 11 09:24:16 2026 read: IOPS=1, BW=51.2MiB/s (53.7MB/s)(40.0MiB/781msec) slat (nsec): min=18519k, max=18519k, avg=18518925.00, stdev= 0.00 clat (nsec): min=717059k, max=717059k, avg=717058773.00, stdev= 0.00 lat (nsec): min=735583k, max=735583k, avg=735583154.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.54%, 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=51.2MiB/s (53.7MB/s), 51.2MiB/s-51.2MiB/s (53.7MB/s-53.7MB/s), io=40.0MiB (41.9MB), run=781-781msec 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