== sanity test 398c: run fio to test AIO ================= 18:11:30 (1789078290) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.575015 s, 72.9 MB/s osc.lustre-OST0000-osc-ffff903cf1921000.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=146679: Thu Sep 10 18:14:36 2026 write: IOPS=14, BW=58.5KiB/s (59.9kB/s)(10.0MiB/174913msec); 0 zone resets slat (usec): min=29, max=25884, avg=235.93, stdev=989.55 clat (msec): min=82, max=2843, avg=1092.18, stdev=385.09 lat (msec): min=82, max=2843, avg=1092.42, stdev=385.09 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 592], 10.00th=[ 684], 20.00th=[ 793], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1020], 60.00th=[ 1116], | 70.00th=[ 1234], 80.00th=[ 1368], 90.00th=[ 1586], 95.00th=[ 1838], | 99.00th=[ 2366], 99.50th=[ 2467], 99.90th=[ 2802], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 154, per=25.37%, avg=59.12, stdev=31.10, samples=340 iops : min= 1, max= 38, avg=14.29, stdev= 7.81, samples=340 lat (msec) : 100=0.08%, 250=0.70%, 500=0.86%, 750=14.10%, 1000=31.68% lat (msec) : 2000=49.61%, >=2000=2.97% cpu : usr=0.04%, sys=0.24%, ctx=2040, 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=146680: Thu Sep 10 18:14:36 2026 write: IOPS=14, BW=58.5KiB/s (59.9kB/s)(10.0MiB/175071msec); 0 zone resets slat (usec): min=29, max=10981, avg=179.14, stdev=642.78 clat (msec): min=417, max=2931, avg=1092.91, stdev=370.58 lat (msec): min=417, max=2932, avg=1093.09, stdev=370.58 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 609], 10.00th=[ 684], 20.00th=[ 793], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1028], 60.00th=[ 1116], | 70.00th=[ 1234], 80.00th=[ 1351], 90.00th=[ 1569], 95.00th=[ 1787], | 99.00th=[ 2265], 99.50th=[ 2601], 99.90th=[ 2869], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 7, max= 128, per=25.53%, avg=59.49, stdev=30.53, samples=338 iops : min= 1, max= 32, avg=14.38, stdev= 7.66, samples=338 lat (msec) : 500=0.90%, 750=13.83%, 1000=32.34%, 2000=50.35%, >=2000=2.58% cpu : usr=0.03%, sys=0.19%, ctx=1609, 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=146681: Thu Sep 10 18:14:36 2026 write: IOPS=14, BW=58.5KiB/s (59.9kB/s)(10.0MiB/175015msec); 0 zone resets slat (usec): min=30, max=14286, avg=201.14, stdev=751.02 clat (msec): min=271, max=2825, avg=1092.69, stdev=378.25 lat (msec): min=271, max=2825, avg=1092.89, stdev=378.26 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 625], 10.00th=[ 693], 20.00th=[ 793], | 30.00th=[ 860], 40.00th=[ 936], 50.00th=[ 1036], 60.00th=[ 1116], | 70.00th=[ 1234], 80.00th=[ 1351], 90.00th=[ 1569], 95.00th=[ 1838], | 99.00th=[ 2299], 99.50th=[ 2601], 99.90th=[ 2802], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 7, max= 128, per=25.61%, avg=59.68, stdev=31.13, samples=337 iops : min= 1, max= 32, avg=14.42, stdev= 7.83, samples=337 lat (msec) : 500=1.29%, 750=14.30%, 1000=31.76%, 2000=49.61%, >=2000=3.05% cpu : usr=0.04%, sys=0.19%, ctx=1637, 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=146682: Thu Sep 10 18:14:36 2026 write: IOPS=14, BW=58.5KiB/s (59.9kB/s)(10.0MiB/175069msec); 0 zone resets slat (usec): min=28, max=16530, avg=222.03, stdev=899.20 clat (msec): min=247, max=2686, avg=1093.07, stdev=371.36 lat (msec): min=248, max=2688, avg=1093.29, stdev=371.38 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 617], 10.00th=[ 701], 20.00th=[ 802], | 30.00th=[ 877], 40.00th=[ 936], 50.00th=[ 1011], 60.00th=[ 1116], | 70.00th=[ 1234], 80.00th=[ 1368], 90.00th=[ 1569], 95.00th=[ 1821], | 99.00th=[ 2333], 99.50th=[ 2534], 99.90th=[ 2668], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 128, per=25.16%, avg=58.63, stdev=27.41, samples=343 iops : min= 1, max= 32, avg=14.16, stdev= 6.90, samples=343 lat (msec) : 250=0.08%, 500=1.13%, 750=13.28%, 1000=34.06%, 2000=48.63% lat (msec) : >=2000=2.81% cpu : usr=0.04%, sys=0.20%, ctx=1872, 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=234KiB/s (240kB/s), 58.5KiB/s-58.5KiB/s (59.9kB/s-59.9kB/s), io=40.0MiB (41.9MB), run=174913-175071msec 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=146718: Thu Sep 10 18:16:50 2026 read: IOPS=9, BW=39.8KiB/s (40.7kB/s)(5048KiB/126975msec) slat (msec): min=2, max=516, avg=16.63, stdev=20.52 clat (msec): min=10, max=1253, avg=497.84, stdev=165.92 lat (msec): min=20, max=1266, avg=514.47, stdev=167.92 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 292], 10.00th=[ 326], 20.00th=[ 368], | 30.00th=[ 401], 40.00th=[ 435], 50.00th=[ 472], 60.00th=[ 510], | 70.00th=[ 550], 80.00th=[ 617], 90.00th=[ 718], 95.00th=[ 810], | 99.00th=[ 1045], 99.50th=[ 1150], 99.90th=[ 1217], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 120, per=24.89%, avg=39.33, stdev=20.18, samples=250 iops : min= 1, max= 30, avg= 9.31, stdev= 5.07, samples=250 write: IOPS=10, BW=40.9KiB/s (41.9kB/s)(5192KiB/126975msec); 0 zone resets slat (usec): min=34, max=16581, avg=254.92, stdev=1001.24 clat (msec): min=266, max=2212, avg=1060.95, stdev=329.83 lat (msec): min=266, max=2212, avg=1061.21, stdev=329.87 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 592], 10.00th=[ 684], 20.00th=[ 793], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1502], 95.00th=[ 1703], | 99.00th=[ 2022], 99.50th=[ 2106], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 103, per=24.95%, avg=40.92, stdev=20.62, samples=248 iops : min= 1, max= 25, avg= 9.72, stdev= 5.20, samples=248 lat (msec) : 20=0.12%, 50=0.04%, 100=0.20%, 250=0.47%, 500=28.09% lat (msec) : 750=24.80%, 1000=19.41%, 2000=26.25%, >=2000=0.62% cpu : usr=0.09%, sys=0.50%, ctx=4388, 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=146719: Thu Sep 10 18:16:50 2026 read: IOPS=9, BW=39.2KiB/s (40.2kB/s)(4976KiB/126875msec) slat (msec): min=2, max=115, avg=15.77, stdev=10.04 clat (msec): min=41, max=1205, avg=491.32, stdev=153.51 lat (msec): min=50, max=1211, avg=507.10, stdev=155.47 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 300], 10.00th=[ 334], 20.00th=[ 372], | 30.00th=[ 401], 40.00th=[ 435], 50.00th=[ 468], 60.00th=[ 498], | 70.00th=[ 535], 80.00th=[ 592], 90.00th=[ 693], 95.00th=[ 785], | 99.00th=[ 1011], 99.50th=[ 1070], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 111, per=25.04%, avg=39.56, stdev=21.27, samples=245 iops : min= 1, max= 27, avg= 9.36, stdev= 5.32, samples=245 write: IOPS=10, BW=41.5KiB/s (42.5kB/s)(5264KiB/126875msec); 0 zone resets slat (usec): min=32, max=16090, avg=265.16, stdev=873.56 clat (msec): min=346, max=2198, avg=1059.70, stdev=329.28 lat (msec): min=346, max=2198, avg=1059.97, stdev=329.30 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 625], 10.00th=[ 693], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1502], 95.00th=[ 1703], | 99.00th=[ 2089], 99.50th=[ 2106], 99.90th=[ 2140], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 103, per=25.08%, avg=41.13, stdev=19.55, samples=250 iops : min= 1, max= 25, avg= 9.77, stdev= 4.92, samples=250 lat (msec) : 50=0.08%, 100=0.08%, 250=0.23%, 500=30.04%, 750=22.93% lat (msec) : 1000=19.26%, 2000=26.64%, >=2000=0.74% cpu : usr=0.11%, sys=0.53%, ctx=4743, 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=146720: Thu Sep 10 18:16:50 2026 read: IOPS=9, BW=39.3KiB/s (40.2kB/s)(4984KiB/126923msec) slat (usec): min=3039, max=97417, avg=15888.05, stdev=9886.26 clat (msec): min=23, max=1163, avg=493.20, stdev=161.87 lat (msec): min=31, max=1177, avg=509.09, stdev=163.95 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 292], 10.00th=[ 321], 20.00th=[ 363], | 30.00th=[ 401], 40.00th=[ 430], 50.00th=[ 464], 60.00th=[ 506], | 70.00th=[ 550], 80.00th=[ 609], 90.00th=[ 709], 95.00th=[ 810], | 99.00th=[ 961], 99.50th=[ 1070], 99.90th=[ 1133], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 126, per=24.79%, avg=39.16, stdev=20.70, samples=249 iops : min= 1, max= 31, avg= 9.27, stdev= 5.21, samples=249 write: IOPS=10, BW=41.4KiB/s (42.4kB/s)(5256KiB/126923msec); 0 zone resets slat (usec): min=32, max=25433, avg=284.15, stdev=1033.13 clat (msec): min=139, max=2212, avg=1058.53, stdev=328.28 lat (msec): min=139, max=2212, avg=1058.82, stdev=328.33 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 617], 10.00th=[ 701], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1183], 80.00th=[ 1267], 90.00th=[ 1502], 95.00th=[ 1720], | 99.00th=[ 2072], 99.50th=[ 2123], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 102, per=25.07%, avg=41.11, stdev=20.26, samples=249 iops : min= 1, max= 25, avg= 9.75, stdev= 5.11, samples=249 lat (msec) : 50=0.08%, 100=0.12%, 250=0.74%, 500=28.44%, 750=23.98% lat (msec) : 1000=19.61%, 2000=26.21%, >=2000=0.82% cpu : usr=0.08%, sys=0.54%, ctx=4734, 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=146721: Thu Sep 10 18:16:50 2026 read: IOPS=10, BW=40.1KiB/s (41.0kB/s)(5060KiB/126300msec) slat (usec): min=56, max=98670, avg=15799.59, stdev=9999.30 clat (msec): min=15, max=1163, avg=494.43, stdev=164.08 lat (msec): min=22, max=1177, avg=510.24, stdev=166.69 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 288], 10.00th=[ 326], 20.00th=[ 372], | 30.00th=[ 397], 40.00th=[ 430], 50.00th=[ 472], 60.00th=[ 506], | 70.00th=[ 550], 80.00th=[ 617], 90.00th=[ 718], 95.00th=[ 802], | 99.00th=[ 995], 99.50th=[ 1053], 99.90th=[ 1150], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 96, per=25.11%, avg=39.68, stdev=20.54, samples=249 iops : min= 1, max= 24, avg= 9.40, stdev= 5.19, samples=249 write: IOPS=10, BW=41.0KiB/s (41.0kB/s)(5180KiB/126300msec); 0 zone resets slat (usec): min=31, max=21151, avg=283.01, stdev=1117.36 clat (msec): min=186, max=2261, avg=1060.56, stdev=339.36 lat (msec): min=186, max=2261, avg=1060.85, stdev=339.39 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 936], 50.00th=[ 1011], 60.00th=[ 1083], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1519], 95.00th=[ 1754], | 99.00th=[ 2039], 99.50th=[ 2123], 99.90th=[ 2232], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 119, per=24.84%, avg=40.73, stdev=19.58, samples=247 iops : min= 1, max= 29, avg= 9.67, stdev= 4.93, samples=247 lat (msec) : 20=0.08%, 50=0.23%, 100=0.31%, 250=0.66%, 500=28.71% lat (msec) : 750=23.71%, 1000=19.80%, 2000=25.86%, >=2000=0.62% cpu : usr=0.09%, sys=0.57%, ctx=4737, 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=158KiB/s (162kB/s), 39.2KiB/s-40.1KiB/s (40.2kB/s-41.0kB/s), io=19.6MiB (20.5MB), run=126300-126975msec WRITE: bw=165KiB/s (168kB/s), 40.9KiB/s-41.5KiB/s (41.9kB/s-42.5kB/s), io=20.4MiB (21.4MB), run=126300-126975msec 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=146745: Thu Sep 10 18:17:00 2026 read: IOPS=1, BW=71.9MiB/s (75.4MB/s)(40.0MiB/556msec) slat (nsec): min=27770k, max=27770k, avg=27770312.00, stdev= 0.00 clat (nsec): min=511492k, max=511492k, avg=511492445.00, stdev= 0.00 lat (nsec): min=539267k, max=539267k, avg=539267321.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] lat (msec) : 750=100.00% cpu : usr=0.18%, sys=2.16%, ctx=5, 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=71.9MiB/s (75.4MB/s), 71.9MiB/s-71.9MiB/s (75.4MB/s-75.4MB/s), io=40.0MiB (41.9MB), run=556-556msec 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