== sanity test 398c: run fio to test AIO ================= 01:17:03 (1788585423) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.188772 s, 222 MB/s osc.lustre-OST0000-osc-ffff98c82bb1e800.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=146704: Sat Sep 5 01:20:17 2026 write: IOPS=13, BW=55.1KiB/s (56.5kB/s)(10.0MiB/185740msec); 0 zone resets slat (usec): min=24, max=23322, avg=276.58, stdev=1068.97 clat (msec): min=202, max=2236, avg=1159.45, stdev=341.44 lat (msec): min=205, max=2236, avg=1159.72, stdev=341.39 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 634], 10.00th=[ 751], 20.00th=[ 902], | 30.00th=[ 978], 40.00th=[ 1070], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1301], 80.00th=[ 1418], 90.00th=[ 1586], 95.00th=[ 1787], | 99.00th=[ 2123], 99.50th=[ 2165], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 168, per=25.01%, avg=55.02, stdev=27.02, samples=365 iops : min= 1, max= 42, avg=13.24, stdev= 6.82, samples=365 lat (msec) : 250=0.35%, 500=1.76%, 750=7.70%, 1000=22.93%, 2000=65.31% lat (msec) : >=2000=1.95% cpu : usr=0.06%, sys=0.24%, ctx=2028, 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=146705: Sat Sep 5 01:20:17 2026 write: IOPS=13, BW=55.1KiB/s (56.4kB/s)(10.0MiB/185830msec); 0 zone resets slat (usec): min=29, max=25833, avg=252.15, stdev=1033.96 clat (msec): min=127, max=2247, avg=1160.58, stdev=344.67 lat (msec): min=128, max=2247, avg=1160.83, stdev=344.67 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 642], 10.00th=[ 760], 20.00th=[ 902], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1217], | 70.00th=[ 1318], 80.00th=[ 1418], 90.00th=[ 1603], 95.00th=[ 1787], | 99.00th=[ 2056], 99.50th=[ 2140], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 175, per=25.41%, avg=55.90, stdev=28.97, samples=359 iops : min= 1, max= 43, avg=13.47, stdev= 7.27, samples=359 lat (msec) : 250=0.86%, 500=1.45%, 750=6.80%, 1000=23.83%, 2000=65.43% lat (msec) : >=2000=1.64% cpu : usr=0.04%, sys=0.22%, ctx=1712, 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=146706: Sat Sep 5 01:20:17 2026 write: IOPS=13, BW=55.0KiB/s (56.4kB/s)(10.0MiB/186024msec); 0 zone resets slat (usec): min=29, max=31528, avg=286.08, stdev=1166.34 clat (msec): min=264, max=2242, avg=1161.36, stdev=340.14 lat (msec): min=264, max=2242, avg=1161.65, stdev=340.15 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 667], 10.00th=[ 768], 20.00th=[ 894], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1217], | 70.00th=[ 1318], 80.00th=[ 1418], 90.00th=[ 1603], 95.00th=[ 1821], | 99.00th=[ 2072], 99.50th=[ 2123], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7, max= 128, per=25.80%, avg=56.75, stdev=27.40, samples=354 iops : min= 1, max= 32, avg=13.68, stdev= 6.91, samples=354 lat (msec) : 500=1.95%, 750=6.80%, 1000=25.35%, 2000=64.10%, >=2000=1.80% cpu : usr=0.05%, sys=0.23%, ctx=1738, 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=146707: Sat Sep 5 01:20:17 2026 write: IOPS=13, BW=55.0KiB/s (56.3kB/s)(10.0MiB/186118msec); 0 zone resets slat (usec): min=25, max=18136, avg=299.72, stdev=1148.52 clat (msec): min=209, max=2253, avg=1161.86, stdev=337.50 lat (msec): min=209, max=2253, avg=1162.16, stdev=337.48 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 659], 10.00th=[ 776], 20.00th=[ 902], | 30.00th=[ 978], 40.00th=[ 1062], 50.00th=[ 1133], 60.00th=[ 1217], | 70.00th=[ 1318], 80.00th=[ 1418], 90.00th=[ 1603], 95.00th=[ 1754], | 99.00th=[ 2089], 99.50th=[ 2165], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 175, per=24.80%, avg=54.55, stdev=26.81, samples=368 iops : min= 1, max= 43, avg=13.13, stdev= 6.75, samples=368 lat (msec) : 250=0.51%, 500=1.21%, 750=6.68%, 1000=24.96%, 2000=64.92% lat (msec) : >=2000=1.72% cpu : usr=0.04%, sys=0.22%, ctx=1764, 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=220KiB/s (225kB/s), 55.0KiB/s-55.1KiB/s (56.3kB/s-56.5kB/s), io=40.0MiB (41.9MB), run=185740-186118msec 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=146743: Sat Sep 5 01:22:41 2026 read: IOPS=9, BW=37.2KiB/s (38.1kB/s)(5048KiB/135822msec) slat (usec): min=2829, max=85871, avg=16942.88, stdev=10204.10 clat (msec): min=17, max=1001, avg=512.88, stdev=146.02 lat (msec): min=24, max=1028, avg=529.83, stdev=147.94 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 305], 10.00th=[ 342], 20.00th=[ 393], | 30.00th=[ 435], 40.00th=[ 468], 50.00th=[ 502], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 625], 90.00th=[ 709], 95.00th=[ 768], | 99.00th=[ 877], 99.50th=[ 953], 99.90th=[ 986], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 103, per=24.95%, avg=36.68, stdev=19.19, samples=268 iops : min= 1, max= 25, avg= 8.61, stdev= 4.83, samples=268 write: IOPS=9, BW=38.2KiB/s (39.1kB/s)(5192KiB/135822msec); 0 zone resets slat (usec): min=28, max=30532, avg=332.76, stdev=1333.02 clat (msec): min=346, max=2146, avg=1155.04, stdev=333.29 lat (msec): min=346, max=2146, avg=1155.38, stdev=333.29 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 634], 10.00th=[ 735], 20.00th=[ 877], | 30.00th=[ 961], 40.00th=[ 1045], 50.00th=[ 1133], 60.00th=[ 1234], | 70.00th=[ 1334], 80.00th=[ 1435], 90.00th=[ 1603], 95.00th=[ 1720], | 99.00th=[ 2022], 99.50th=[ 2072], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 103, per=24.85%, avg=38.02, stdev=18.43, samples=266 iops : min= 1, max= 25, avg= 8.95, stdev= 4.65, samples=266 lat (msec) : 20=0.04%, 50=0.23%, 100=0.04%, 250=0.66%, 500=24.45% lat (msec) : 750=26.25%, 1000=15.35%, 2000=32.34%, >=2000=0.62% cpu : usr=0.10%, sys=0.50%, ctx=4276, 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=146744: Sat Sep 5 01:22:41 2026 read: IOPS=9, BW=36.5KiB/s (37.4kB/s)(4976KiB/136186msec) slat (usec): min=3010, max=65110, avg=16985.23, stdev=10033.37 clat (msec): min=13, max=988, avg=516.66, stdev=146.14 lat (msec): min=23, max=1020, avg=533.65, stdev=147.69 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 309], 10.00th=[ 347], 20.00th=[ 393], | 30.00th=[ 435], 40.00th=[ 468], 50.00th=[ 506], 60.00th=[ 550], | 70.00th=[ 584], 80.00th=[ 634], 90.00th=[ 726], 95.00th=[ 776], | 99.00th=[ 877], 99.50th=[ 902], 99.90th=[ 961], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 104, per=24.68%, avg=36.27, stdev=19.18, samples=266 iops : min= 1, max= 26, avg= 8.51, stdev= 4.82, samples=266 write: IOPS=9, BW=38.7KiB/s (39.6kB/s)(5264KiB/136186msec); 0 zone resets slat (usec): min=31, max=11575, avg=300.97, stdev=878.32 clat (msec): min=234, max=2150, avg=1148.67, stdev=339.56 lat (msec): min=240, max=2150, avg=1148.97, stdev=339.56 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 592], 10.00th=[ 709], 20.00th=[ 860], | 30.00th=[ 961], 40.00th=[ 1045], 50.00th=[ 1133], 60.00th=[ 1250], | 70.00th=[ 1351], 80.00th=[ 1452], 90.00th=[ 1603], 95.00th=[ 1720], | 99.00th=[ 1955], 99.50th=[ 2039], 99.90th=[ 2123], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 118, per=25.01%, avg=38.26, stdev=20.72, samples=268 iops : min= 1, max= 29, avg= 9.01, stdev= 5.21, samples=268 lat (msec) : 20=0.04%, 50=0.08%, 100=0.08%, 250=0.94%, 500=24.41% lat (msec) : 750=25.66%, 1000=15.20%, 2000=33.24%, >=2000=0.35% cpu : usr=0.08%, sys=0.52%, ctx=4250, 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=146745: Sat Sep 5 01:22:41 2026 read: IOPS=9, BW=36.6KiB/s (37.5kB/s)(4984KiB/136002msec) slat (usec): min=2737, max=71658, avg=16824.35, stdev=10176.54 clat (msec): min=32, max=1007, avg=517.51, stdev=148.45 lat (msec): min=49, max=1026, avg=534.34, stdev=150.00 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 305], 10.00th=[ 351], 20.00th=[ 393], | 30.00th=[ 435], 40.00th=[ 472], 50.00th=[ 506], 60.00th=[ 542], | 70.00th=[ 592], 80.00th=[ 642], 90.00th=[ 718], 95.00th=[ 768], | 99.00th=[ 902], 99.50th=[ 944], 99.90th=[ 969], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 118, per=25.17%, avg=37.00, stdev=19.76, samples=263 iops : min= 1, max= 29, avg= 8.70, stdev= 5.00, samples=263 write: IOPS=9, BW=38.6KiB/s (39.6kB/s)(5256KiB/136002msec); 0 zone resets slat (usec): min=28, max=36529, avg=406.19, stdev=1782.14 clat (msec): min=306, max=2159, avg=1145.59, stdev=346.51 lat (msec): min=306, max=2160, avg=1146.00, stdev=346.45 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 575], 10.00th=[ 709], 20.00th=[ 852], | 30.00th=[ 953], 40.00th=[ 1036], 50.00th=[ 1133], 60.00th=[ 1217], | 70.00th=[ 1334], 80.00th=[ 1435], 90.00th=[ 1620], 95.00th=[ 1737], | 99.00th=[ 2005], 99.50th=[ 2106], 99.90th=[ 2140], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 110, per=25.00%, avg=38.25, stdev=18.56, samples=267 iops : min= 1, max= 27, avg= 9.00, stdev= 4.67, samples=267 lat (msec) : 50=0.12%, 100=0.23%, 250=1.02%, 500=23.83%, 750=26.21% lat (msec) : 1000=15.70%, 2000=32.38%, >=2000=0.51% cpu : usr=0.09%, sys=0.51%, ctx=3998, 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=146746: Sat Sep 5 01:22:41 2026 read: IOPS=9, BW=37.4KiB/s (38.3kB/s)(5060KiB/135438msec) slat (usec): min=49, max=76708, avg=16488.70, stdev=9780.95 clat (msec): min=13, max=1194, avg=516.67, stdev=153.85 lat (msec): min=13, max=1206, avg=533.17, stdev=155.22 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 296], 10.00th=[ 338], 20.00th=[ 397], | 30.00th=[ 443], 40.00th=[ 477], 50.00th=[ 506], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 634], 90.00th=[ 726], 95.00th=[ 785], | 99.00th=[ 902], 99.50th=[ 953], 99.90th=[ 1028], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 96, per=25.55%, avg=37.55, stdev=18.14, samples=263 iops : min= 1, max= 24, avg= 8.83, stdev= 4.61, samples=263 write: IOPS=9, BW=38.2KiB/s (39.2kB/s)(5180KiB/135438msec); 0 zone resets slat (usec): min=29, max=31593, avg=359.23, stdev=1320.16 clat (msec): min=154, max=2185, avg=1150.77, stdev=349.58 lat (msec): min=155, max=2185, avg=1151.14, stdev=349.58 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 584], 10.00th=[ 701], 20.00th=[ 869], | 30.00th=[ 969], 40.00th=[ 1045], 50.00th=[ 1133], 60.00th=[ 1234], | 70.00th=[ 1334], 80.00th=[ 1435], 90.00th=[ 1603], 95.00th=[ 1754], | 99.00th=[ 2022], 99.50th=[ 2039], 99.90th=[ 2106], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 111, per=24.81%, avg=37.95, stdev=19.13, samples=265 iops : min= 1, max= 27, avg= 8.94, stdev= 4.81, samples=265 lat (msec) : 20=0.12%, 50=0.27%, 100=0.20%, 250=0.78%, 500=24.10% lat (msec) : 750=26.29%, 1000=15.00%, 2000=32.70%, >=2000=0.55% cpu : usr=0.09%, sys=0.54%, ctx=4314, 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=147KiB/s (151kB/s), 36.5KiB/s-37.4KiB/s (37.4kB/s-38.3kB/s), io=19.6MiB (20.5MB), run=135438-136186msec WRITE: bw=153KiB/s (157kB/s), 38.2KiB/s-38.7KiB/s (39.1kB/s-39.6kB/s), io=20.4MiB (21.4MB), run=135438-136186msec 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=146770: Sat Sep 5 01:22:48 2026 read: IOPS=1, BW=56.4MiB/s (59.2MB/s)(40.0MiB/709msec) slat (nsec): min=21074k, max=21074k, avg=21074116.00, stdev= 0.00 clat (nsec): min=668730k, max=668730k, avg=668729560.00, stdev= 0.00 lat (nsec): min=689809k, max=689809k, avg=689809026.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.55%, ctx=43, 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=56.4MiB/s (59.2MB/s), 56.4MiB/s-56.4MiB/s (59.2MB/s-59.2MB/s), io=40.0MiB (41.9MB), run=709-709msec 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