== sanity test 398c: run fio to test AIO ================= 16:09:55 (1782245395) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.620012 s, 67.6 MB/s osc.lustre-OST0000-osc-ffffa0dbf1357000.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=145869: Tue Jun 23 16:12:40 2026 write: IOPS=16, BW=66.0KiB/s (67.6kB/s)(10.0MiB/155109msec); 0 zone resets slat (usec): min=52, max=19610, avg=380.45, stdev=963.96 clat (msec): min=267, max=1805, avg=968.06, stdev=223.11 lat (msec): min=267, max=1805, avg=968.45, stdev=223.14 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 617], 10.00th=[ 684], 20.00th=[ 776], | 30.00th=[ 844], 40.00th=[ 911], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1167], 90.00th=[ 1250], 95.00th=[ 1318], | 99.00th=[ 1519], 99.50th=[ 1586], 99.90th=[ 1754], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 7, max= 128, per=25.43%, avg=66.88, stdev=32.09, samples=301 iops : min= 1, max= 32, avg=16.22, stdev= 8.07, samples=301 lat (msec) : 500=1.99%, 750=14.30%, 1000=40.66%, 2000=43.05% cpu : usr=0.05%, sys=0.31%, ctx=1933, 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=145870: Tue Jun 23 16:12:40 2026 write: IOPS=16, BW=65.0KiB/s (67.6kB/s)(10.0MiB/155184msec); 0 zone resets slat (usec): min=43, max=14635, avg=393.60, stdev=1008.73 clat (msec): min=334, max=1763, avg=968.45, stdev=225.70 lat (msec): min=335, max=1763, avg=968.85, stdev=225.74 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 625], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 835], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1267], 95.00th=[ 1351], | 99.00th=[ 1519], 99.50th=[ 1569], 99.90th=[ 1653], 99.95th=[ 1754], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 128, per=25.26%, avg=66.44, stdev=30.66, samples=303 iops : min= 1, max= 32, avg=16.11, stdev= 7.70, samples=303 lat (msec) : 500=1.91%, 750=14.02%, 1000=41.21%, 2000=42.85% cpu : usr=0.06%, sys=0.32%, ctx=2072, 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=145871: Tue Jun 23 16:12:40 2026 write: IOPS=16, BW=66.0KiB/s (67.6kB/s)(10.0MiB/155063msec); 0 zone resets slat (usec): min=42, max=12481, avg=369.38, stdev=881.07 clat (msec): min=188, max=1748, avg=968.51, stdev=229.73 lat (msec): min=188, max=1751, avg=968.88, stdev=229.71 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 617], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1267], 95.00th=[ 1351], | 99.00th=[ 1536], 99.50th=[ 1569], 99.90th=[ 1670], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 151, per=25.59%, avg=67.30, stdev=30.94, samples=299 iops : min= 1, max= 37, avg=16.33, stdev= 7.79, samples=299 lat (msec) : 250=0.27%, 500=1.80%, 750=13.79%, 1000=41.48%, 2000=42.66% cpu : usr=0.06%, sys=0.32%, ctx=2218, 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=145872: Tue Jun 23 16:12:40 2026 write: IOPS=16, BW=65.0KiB/s (67.6kB/s)(10.0MiB/155186msec); 0 zone resets slat (usec): min=50, max=13197, avg=367.45, stdev=935.97 clat (msec): min=266, max=1764, avg=968.69, stdev=229.49 lat (msec): min=267, max=1764, avg=969.06, stdev=229.49 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 617], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 835], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1167], 90.00th=[ 1284], 95.00th=[ 1351], | 99.00th=[ 1469], 99.50th=[ 1552], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 128, per=25.34%, avg=66.65, stdev=27.74, samples=302 iops : min= 1, max= 32, avg=16.17, stdev= 6.94, samples=302 lat (msec) : 500=2.03%, 750=13.91%, 1000=41.09%, 2000=42.97% cpu : usr=0.05%, sys=0.35%, ctx=2309, 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=264KiB/s (270kB/s), 65.0KiB/s-66.0KiB/s (67.6kB/s-67.6kB/s), io=40.0MiB (41.9MB), run=155063-155186msec 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=145904: Tue Jun 23 16:14:45 2026 read: IOPS=10, BW=43.1KiB/s (44.1kB/s)(5048KiB/117170msec) slat (usec): min=2738, max=63970, avg=15522.61, stdev=8410.18 clat (msec): min=45, max=1936, avg=471.78, stdev=182.34 lat (msec): min=62, max=1964, avg=487.31, stdev=183.82 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 275], 10.00th=[ 321], 20.00th=[ 355], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 443], 60.00th=[ 472], | 70.00th=[ 510], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 751], | 99.00th=[ 1318], 99.50th=[ 1603], 99.90th=[ 1804], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 111, per=25.43%, avg=43.48, stdev=21.01, samples=227 iops : min= 1, max= 27, avg=10.38, stdev= 5.29, samples=227 write: IOPS=11, BW=44.3KiB/s (45.4kB/s)(5192KiB/117170msec); 0 zone resets slat (usec): min=59, max=12999, avg=485.98, stdev=1218.79 clat (msec): min=329, max=2305, avg=966.94, stdev=291.12 lat (msec): min=329, max=2305, avg=967.43, stdev=291.13 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 584], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 802], 40.00th=[ 860], 50.00th=[ 919], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1485], | 99.00th=[ 2039], 99.50th=[ 2123], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 103, per=25.05%, avg=44.60, stdev=20.23, samples=228 iops : min= 1, max= 25, avg=10.65, stdev= 5.09, samples=228 lat (msec) : 50=0.04%, 100=0.20%, 250=0.70%, 500=33.28%, 750=24.34% lat (msec) : 1000=20.12%, 2000=20.82%, >=2000=0.51% cpu : usr=0.09%, sys=0.68%, ctx=4634, 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=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=145905: Tue Jun 23 16:14:45 2026 read: IOPS=10, BW=42.8KiB/s (43.8kB/s)(4976KiB/116321msec) slat (usec): min=86, max=64565, avg=15552.93, stdev=8585.64 clat (msec): min=14, max=2401, avg=464.37, stdev=175.43 lat (msec): min=14, max=2424, avg=479.93, stdev=177.42 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 275], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 388], 40.00th=[ 418], 50.00th=[ 439], 60.00th=[ 468], | 70.00th=[ 502], 80.00th=[ 550], 90.00th=[ 609], 95.00th=[ 709], | 99.00th=[ 1234], 99.50th=[ 1469], 99.90th=[ 1821], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 112, per=25.27%, avg=43.21, stdev=19.42, samples=225 iops : min= 1, max= 28, avg=10.32, stdev= 4.89, samples=225 write: IOPS=11, BW=45.3KiB/s (46.3kB/s)(5264KiB/116321msec); 0 zone resets slat (usec): min=50, max=17749, avg=436.01, stdev=1128.60 clat (msec): min=148, max=2579, avg=958.81, stdev=308.74 lat (msec): min=148, max=2579, avg=959.25, stdev=308.84 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 567], 10.00th=[ 625], 20.00th=[ 709], | 30.00th=[ 785], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 986], | 70.00th=[ 1070], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1502], | 99.00th=[ 2089], 99.50th=[ 2265], 99.90th=[ 2433], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 95, per=25.30%, avg=45.03, stdev=19.78, samples=229 iops : min= 1, max= 23, avg=10.77, stdev= 4.98, samples=229 lat (msec) : 20=0.08%, 50=0.08%, 100=0.08%, 250=1.56%, 500=33.24% lat (msec) : 750=24.38%, 1000=20.35%, 2000=19.65%, >=2000=0.59% cpu : usr=0.10%, sys=0.70%, ctx=4431, 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=145906: Tue Jun 23 16:14:45 2026 read: IOPS=10, BW=42.5KiB/s (43.5kB/s)(4984KiB/117306msec) slat (usec): min=3340, max=60637, avg=15872.72, stdev=8749.59 clat (msec): min=13, max=1564, avg=460.63, stdev=147.52 lat (msec): min=29, max=1577, avg=476.51, stdev=149.41 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 284], 10.00th=[ 321], 20.00th=[ 359], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 468], | 70.00th=[ 502], 80.00th=[ 542], 90.00th=[ 617], 95.00th=[ 718], | 99.00th=[ 961], 99.50th=[ 1116], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 7, max= 128, per=24.76%, avg=42.34, stdev=23.01, samples=231 iops : min= 1, max= 32, avg=10.09, stdev= 5.80, samples=231 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(5256KiB/117306msec); 0 zone resets slat (usec): min=56, max=12646, avg=468.66, stdev=1071.80 clat (msec): min=253, max=2339, avg=973.85, stdev=290.42 lat (msec): min=253, max=2339, avg=974.32, stdev=290.45 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 584], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 877], 50.00th=[ 936], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1502], | 99.00th=[ 1888], 99.50th=[ 2039], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 95, per=24.82%, avg=44.19, stdev=19.26, samples=232 iops : min= 1, max= 23, avg=10.55, stdev= 4.82, samples=232 lat (msec) : 20=0.08%, 50=0.04%, 100=0.16%, 250=0.66%, 500=34.06% lat (msec) : 750=23.01%, 1000=20.51%, 2000=21.17%, >=2000=0.31% cpu : usr=0.11%, sys=0.68%, ctx=4796, 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=145907: Tue Jun 23 16:14:45 2026 read: IOPS=10, BW=43.4KiB/s (44.4kB/s)(5060KiB/116699msec) slat (usec): min=3123, max=62204, avg=15469.28, stdev=8576.87 clat (msec): min=15, max=1850, avg=466.04, stdev=159.13 lat (msec): min=30, max=1860, avg=481.53, stdev=160.92 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 284], 10.00th=[ 321], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 418], 50.00th=[ 443], 60.00th=[ 472], | 70.00th=[ 506], 80.00th=[ 550], 90.00th=[ 625], 95.00th=[ 726], | 99.00th=[ 1003], 99.50th=[ 1150], 99.90th=[ 1670], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 112, per=25.56%, avg=43.70, stdev=21.80, samples=227 iops : min= 1, max= 28, avg=10.43, stdev= 5.50, samples=227 write: IOPS=11, BW=44.4KiB/s (45.5kB/s)(5180KiB/116699msec); 0 zone resets slat (usec): min=57, max=18357, avg=529.51, stdev=1407.81 clat (msec): min=276, max=2518, avg=968.41, stdev=301.37 lat (msec): min=276, max=2519, avg=968.94, stdev=301.41 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 575], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 802], 40.00th=[ 869], 50.00th=[ 936], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1183], 90.00th=[ 1318], 95.00th=[ 1502], | 99.00th=[ 2123], 99.50th=[ 2265], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 103, per=24.82%, avg=44.18, stdev=19.81, samples=229 iops : min= 1, max= 25, avg=10.55, stdev= 4.95, samples=229 lat (msec) : 20=0.04%, 50=0.23%, 100=0.12%, 250=0.47%, 500=34.14% lat (msec) : 750=24.06%, 1000=20.20%, 2000=20.12%, >=2000=0.62% cpu : usr=0.09%, sys=0.70%, ctx=4707, 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=171KiB/s (175kB/s), 42.5KiB/s-43.4KiB/s (43.5kB/s-44.4kB/s), io=19.6MiB (20.5MB), run=116321-117306msec WRITE: bw=178KiB/s (182kB/s), 44.3KiB/s-45.3KiB/s (45.4kB/s-46.3kB/s), io=20.4MiB (21.4MB), run=116321-117306msec 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=145928: Tue Jun 23 16:14:57 2026 read: IOPS=1, BW=48.4MiB/s (50.7MB/s)(40.0MiB/827msec) slat (nsec): min=56892k, max=56892k, avg=56892278.00, stdev= 0.00 clat (nsec): min=741818k, max=741818k, avg=741818073.00, stdev= 0.00 lat (nsec): min=798715k, max=798715k, avg=798714747.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 743], 5.00th=[ 743], 10.00th=[ 743], 20.00th=[ 743], | 30.00th=[ 743], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 743], 80.00th=[ 743], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.33%, ctx=7, majf=0, minf=10 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=48.4MiB/s (50.7MB/s), 48.4MiB/s-48.4MiB/s (50.7MB/s-50.7MB/s), io=40.0MiB (41.9MB), run=827-827msec 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