== sanity test 398c: run fio to test AIO ================= 07:19:15 (1789125555) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.510152 s, 82.2 MB/s osc.lustre-OST0000-osc-ffff976912448800.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=146314: Fri Sep 11 07:22:05 2026 write: IOPS=16, BW=64.7KiB/s (66.3kB/s)(10.0MiB/158187msec); 0 zone resets slat (usec): min=26, max=15584, avg=270.64, stdev=929.70 clat (msec): min=350, max=2047, avg=987.25, stdev=238.16 lat (msec): min=350, max=2047, avg=987.52, stdev=238.17 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 609], 10.00th=[ 709], 20.00th=[ 793], | 30.00th=[ 877], 40.00th=[ 927], 50.00th=[ 978], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1385], | 99.00th=[ 1620], 99.50th=[ 1737], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 253, per=25.27%, avg=65.21, stdev=29.97, samples=309 iops : min= 1, max= 63, avg=15.82, stdev= 7.54, samples=309 lat (msec) : 500=2.46%, 750=12.89%, 1000=39.57%, 2000=44.96%, >=2000=0.12% cpu : usr=0.05%, sys=0.23%, ctx=1649, 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=146315: Fri Sep 11 07:22:05 2026 write: IOPS=16, BW=64.9KiB/s (66.4kB/s)(10.0MiB/157814msec); 0 zone resets slat (usec): min=30, max=16546, avg=256.07, stdev=874.54 clat (msec): min=283, max=2032, avg=985.22, stdev=244.30 lat (msec): min=283, max=2032, avg=985.48, stdev=244.29 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 617], 10.00th=[ 676], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 978], 60.00th=[ 1036], | 70.00th=[ 1116], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1368], | 99.00th=[ 1586], 99.50th=[ 1770], 99.90th=[ 1921], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 128, per=25.60%, avg=66.05, stdev=31.25, samples=305 iops : min= 1, max= 32, avg=16.03, stdev= 7.84, samples=305 lat (msec) : 500=2.50%, 750=14.14%, 1000=37.89%, 2000=45.39%, >=2000=0.08% cpu : usr=0.04%, sys=0.24%, ctx=1676, 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=146316: Fri Sep 11 07:22:05 2026 write: IOPS=16, BW=64.9KiB/s (66.5kB/s)(10.0MiB/157761msec); 0 zone resets slat (usec): min=24, max=13640, avg=257.80, stdev=795.42 clat (msec): min=193, max=2050, avg=985.14, stdev=248.17 lat (msec): min=195, max=2050, avg=985.40, stdev=248.16 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 609], 10.00th=[ 684], 20.00th=[ 793], | 30.00th=[ 860], 40.00th=[ 927], 50.00th=[ 978], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1183], 90.00th=[ 1301], 95.00th=[ 1368], | 99.00th=[ 1603], 99.50th=[ 1838], 99.90th=[ 1955], 99.95th=[ 1955], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 128, per=25.94%, avg=66.92, stdev=31.31, samples=301 iops : min= 1, max= 32, avg=16.25, stdev= 7.89, samples=301 lat (msec) : 250=0.62%, 500=2.03%, 750=13.32%, 1000=38.55%, 2000=45.43% lat (msec) : >=2000=0.04% cpu : usr=0.04%, sys=0.26%, ctx=1650, 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=146317: Fri Sep 11 07:22:05 2026 write: IOPS=16, BW=64.8KiB/s (66.3kB/s)(10.0MiB/158119msec); 0 zone resets slat (usec): min=30, max=15945, avg=261.42, stdev=877.58 clat (msec): min=299, max=1979, avg=986.94, stdev=242.01 lat (msec): min=299, max=1979, avg=987.21, stdev=242.00 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 600], 10.00th=[ 684], 20.00th=[ 802], | 30.00th=[ 869], 40.00th=[ 927], 50.00th=[ 969], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1301], 95.00th=[ 1385], | 99.00th=[ 1552], 99.50th=[ 1770], 99.90th=[ 1921], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 253, per=25.86%, avg=66.71, stdev=32.46, samples=302 iops : min= 1, max= 63, avg=16.20, stdev= 8.13, samples=302 lat (msec) : 500=2.93%, 750=11.41%, 1000=41.45%, 2000=44.22% cpu : usr=0.05%, sys=0.25%, ctx=1782, 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=259KiB/s (265kB/s), 64.7KiB/s-64.9KiB/s (66.3kB/s-66.5kB/s), io=40.0MiB (41.9MB), run=157761-158187msec 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=146350: Fri Sep 11 07:24:03 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5048KiB/109040msec) slat (usec): min=2819, max=58671, avg=13983.95, stdev=7400.34 clat (msec): min=36, max=1127, avg=423.18, stdev=133.34 lat (msec): min=47, max=1143, avg=437.17, stdev=134.94 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 249], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 460], 80.00th=[ 514], 90.00th=[ 592], 95.00th=[ 684], | 99.00th=[ 860], 99.50th=[ 927], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 112, per=25.13%, avg=45.99, stdev=22.33, samples=215 iops : min= 1, max= 28, avg=11.00, stdev= 5.61, samples=215 write: IOPS=11, BW=47.6KiB/s (48.8kB/s)(5192KiB/109040msec); 0 zone resets slat (usec): min=33, max=8506, avg=270.50, stdev=671.09 clat (msec): min=337, max=2199, avg=916.09, stdev=282.28 lat (msec): min=337, max=2199, avg=916.36, stdev=282.27 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 510], 10.00th=[ 617], 20.00th=[ 693], | 30.00th=[ 760], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 944], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1250], 95.00th=[ 1401], | 99.00th=[ 2005], 99.50th=[ 2039], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 96, per=24.78%, avg=47.32, stdev=20.54, samples=214 iops : min= 1, max= 24, avg=11.34, stdev= 5.17, samples=214 lat (msec) : 50=0.04%, 100=0.16%, 250=2.34%, 500=38.32%, 750=21.45% lat (msec) : 1000=21.48%, 2000=15.74%, >=2000=0.47% cpu : usr=0.10%, sys=0.60%, ctx=4055, 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=146351: Fri Sep 11 07:24:03 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(4976KiB/109328msec) slat (usec): min=2836, max=60607, avg=14007.99, stdev=8134.08 clat (msec): min=12, max=1153, avg=414.31, stdev=129.87 lat (msec): min=21, max=1172, avg=428.33, stdev=131.99 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 239], 10.00th=[ 284], 20.00th=[ 326], | 30.00th=[ 347], 40.00th=[ 372], 50.00th=[ 397], 60.00th=[ 422], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 584], 95.00th=[ 659], | 99.00th=[ 802], 99.50th=[ 877], 99.90th=[ 1099], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 127, per=24.60%, avg=45.02, stdev=24.07, samples=215 iops : min= 1, max= 31, avg=10.76, stdev= 6.07, samples=215 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(5264KiB/109328msec); 0 zone resets slat (usec): min=36, max=16523, avg=300.68, stdev=965.65 clat (msec): min=128, max=2199, avg=921.66, stdev=295.37 lat (msec): min=128, max=2199, avg=921.97, stdev=295.37 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 514], 10.00th=[ 600], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 877], 60.00th=[ 944], | 70.00th=[ 1011], 80.00th=[ 1116], 90.00th=[ 1301], 95.00th=[ 1469], | 99.00th=[ 1938], 99.50th=[ 2089], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 119, per=24.91%, avg=47.57, stdev=21.17, samples=216 iops : min= 1, max= 29, avg=11.40, stdev= 5.32, samples=216 lat (msec) : 20=0.04%, 50=0.16%, 100=0.27%, 250=2.97%, 500=38.24% lat (msec) : 750=19.69%, 1000=22.70%, 2000=15.55%, >=2000=0.39% cpu : usr=0.12%, sys=0.60%, ctx=4231, 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=146352: Fri Sep 11 07:24:03 2026 read: IOPS=11, BW=45.6KiB/s (46.7kB/s)(4984KiB/109261msec) slat (usec): min=2858, max=69219, avg=13825.05, stdev=7642.24 clat (msec): min=15, max=1137, avg=414.00, stdev=129.70 lat (msec): min=24, max=1155, avg=427.83, stdev=131.65 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 247], 10.00th=[ 284], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 393], 60.00th=[ 422], | 70.00th=[ 451], 80.00th=[ 493], 90.00th=[ 575], 95.00th=[ 659], | 99.00th=[ 844], 99.50th=[ 902], 99.90th=[ 1116], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 119, per=25.46%, avg=46.60, stdev=22.98, samples=210 iops : min= 1, max= 29, avg=11.16, stdev= 5.80, samples=210 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(5256KiB/109261msec); 0 zone resets slat (usec): min=28, max=15007, avg=322.59, stdev=924.99 clat (msec): min=211, max=2203, avg=922.24, stdev=289.55 lat (msec): min=211, max=2203, avg=922.57, stdev=289.52 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 518], 10.00th=[ 600], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 885], 60.00th=[ 936], | 70.00th=[ 1011], 80.00th=[ 1116], 90.00th=[ 1301], 95.00th=[ 1502], | 99.00th=[ 1838], 99.50th=[ 1905], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 103, per=24.88%, avg=47.52, stdev=20.33, samples=216 iops : min= 1, max= 25, avg=11.39, stdev= 5.08, samples=216 lat (msec) : 20=0.04%, 50=0.08%, 100=0.35%, 250=2.30%, 500=38.71% lat (msec) : 750=20.12%, 1000=22.50%, 2000=15.78%, >=2000=0.12% cpu : usr=0.10%, sys=0.61%, ctx=4237, 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=146353: Fri Sep 11 07:24:03 2026 read: IOPS=11, BW=46.4KiB/s (47.5kB/s)(5060KiB/109032msec) slat (usec): min=53, max=48184, avg=14080.48, stdev=7341.81 clat (msec): min=13, max=1286, avg=425.92, stdev=140.81 lat (msec): min=31, max=1309, avg=440.00, stdev=142.70 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 245], 10.00th=[ 288], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 430], | 70.00th=[ 464], 80.00th=[ 506], 90.00th=[ 609], 95.00th=[ 684], | 99.00th=[ 894], 99.50th=[ 1099], 99.90th=[ 1250], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 103, per=25.84%, avg=47.30, stdev=20.45, samples=210 iops : min= 1, max= 25, avg=11.34, stdev= 5.12, samples=210 write: IOPS=11, BW=47.5KiB/s (48.6kB/s)(5180KiB/109032msec); 0 zone resets slat (usec): min=37, max=12719, avg=321.88, stdev=891.30 clat (msec): min=118, max=2186, avg=915.97, stdev=292.26 lat (msec): min=119, max=2186, avg=916.30, stdev=292.25 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 527], 10.00th=[ 600], 20.00th=[ 701], | 30.00th=[ 760], 40.00th=[ 818], 50.00th=[ 869], 60.00th=[ 944], | 70.00th=[ 1003], 80.00th=[ 1099], 90.00th=[ 1301], 95.00th=[ 1469], | 99.00th=[ 1938], 99.50th=[ 2022], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 111, per=24.50%, avg=46.80, stdev=21.98, samples=216 iops : min= 1, max= 27, avg=11.20, stdev= 5.52, samples=216 lat (msec) : 20=0.04%, 50=0.16%, 100=0.31%, 250=2.38%, 500=38.20% lat (msec) : 750=21.41%, 1000=21.68%, 2000=15.43%, >=2000=0.39% cpu : usr=0.10%, sys=0.62%, ctx=4434, 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=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=184KiB/s (188kB/s), 45.5KiB/s-46.4KiB/s (46.6kB/s-47.5kB/s), io=19.6MiB (20.5MB), run=109032-109328msec WRITE: bw=191KiB/s (196kB/s), 47.5KiB/s-48.1KiB/s (48.6kB/s-49.3kB/s), io=20.4MiB (21.4MB), run=109032-109328msec 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=146372: Fri Sep 11 07:24:12 2026 read: IOPS=2, BW=82.6MiB/s (86.7MB/s)(40.0MiB/484msec) slat (nsec): min=39643k, max=39643k, avg=39642616.00, stdev= 0.00 clat (nsec): min=419378k, max=419378k, avg=419377852.00, stdev= 0.00 lat (nsec): min=459025k, max=459025k, avg=459024761.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.24%, ctx=43, 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=82.6MiB/s (86.7MB/s), 82.6MiB/s-82.6MiB/s (86.7MB/s-86.7MB/s), io=40.0MiB (41.9MB), run=484-484msec 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