== sanity test 398c: run fio to test AIO ================= 02:00:02 (1788588002) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.66322 s, 63.2 MB/s osc.lustre-OST0000-osc-ffff8b0e5283c800.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=179588: Sat Sep 5 02:00:36 2026 write: IOPS=114, BW=459KiB/s (470kB/s)(10.0MiB/22315msec); 0 zone resets slat (usec): min=22, max=21697, avg=175.64, stdev=844.60 clat (msec): min=19, max=512, avg=138.52, stdev=58.77 lat (msec): min=19, max=513, avg=138.70, stdev=58.79 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 88], | 30.00th=[ 106], 40.00th=[ 121], 50.00th=[ 133], 60.00th=[ 148], | 70.00th=[ 163], 80.00th=[ 184], 90.00th=[ 211], 95.00th=[ 230], | 99.00th=[ 330], 99.50th=[ 422], 99.90th=[ 460], 99.95th=[ 498], | 99.99th=[ 514] bw ( KiB/s): min= 190, max= 1123, per=24.86%, avg=456.27, stdev=173.44, samples=44 iops : min= 47, max= 280, avg=113.70, stdev=43.36, samples=44 lat (msec) : 20=0.04%, 50=1.60%, 100=25.35%, 250=70.70%, 500=2.27% lat (msec) : 750=0.04% cpu : usr=0.18%, sys=0.86%, ctx=2873, 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=179589: Sat Sep 5 02:00:36 2026 write: IOPS=115, BW=462KiB/s (473kB/s)(10.0MiB/22172msec); 0 zone resets slat (usec): min=22, max=21136, avg=184.80, stdev=766.90 clat (msec): min=10, max=504, avg=138.29, stdev=59.62 lat (msec): min=10, max=504, avg=138.48, stdev=59.63 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 85], | 30.00th=[ 104], 40.00th=[ 120], 50.00th=[ 130], 60.00th=[ 150], | 70.00th=[ 165], 80.00th=[ 182], 90.00th=[ 211], 95.00th=[ 228], | 99.00th=[ 284], 99.50th=[ 393], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 183, max= 1091, per=25.07%, avg=460.07, stdev=181.15, samples=43 iops : min= 45, max= 272, avg=114.65, stdev=45.29, samples=43 lat (msec) : 20=0.12%, 50=1.48%, 100=26.84%, 250=68.63%, 500=2.70% lat (msec) : 750=0.23% cpu : usr=0.20%, sys=1.13%, ctx=2943, 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=179590: Sat Sep 5 02:00:36 2026 write: IOPS=115, BW=461KiB/s (472kB/s)(10.0MiB/22205msec); 0 zone resets slat (usec): min=21, max=11752, avg=149.70, stdev=503.23 clat (msec): min=8, max=504, avg=138.12, stdev=59.57 lat (msec): min=8, max=504, avg=138.28, stdev=59.58 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 66], 20.00th=[ 88], | 30.00th=[ 103], 40.00th=[ 120], 50.00th=[ 131], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 190], 90.00th=[ 211], 95.00th=[ 234], | 99.00th=[ 268], 99.50th=[ 485], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 506] bw ( KiB/s): min= 231, max= 1147, per=24.95%, avg=457.86, stdev=176.35, samples=44 iops : min= 57, max= 286, avg=114.11, stdev=44.11, samples=44 lat (msec) : 10=0.04%, 20=0.04%, 50=2.03%, 100=26.84%, 250=68.95% lat (msec) : 500=2.07%, 750=0.04% cpu : usr=0.11%, sys=0.89%, ctx=2702, 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=179591: Sat Sep 5 02:00:36 2026 write: IOPS=114, BW=459KiB/s (470kB/s)(10.0MiB/22315msec); 0 zone resets slat (usec): min=25, max=15864, avg=155.98, stdev=604.60 clat (msec): min=34, max=477, avg=138.61, stdev=58.53 lat (msec): min=34, max=477, avg=138.77, stdev=58.53 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 61], 10.00th=[ 66], 20.00th=[ 87], | 30.00th=[ 107], 40.00th=[ 121], 50.00th=[ 131], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 188], 90.00th=[ 207], 95.00th=[ 230], | 99.00th=[ 334], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 477] bw ( KiB/s): min= 151, max= 1139, per=24.92%, avg=457.25, stdev=173.65, samples=44 iops : min= 37, max= 284, avg=113.98, stdev=43.43, samples=44 lat (msec) : 50=1.41%, 100=25.90%, 250=70.59%, 500=2.11% cpu : usr=0.15%, sys=0.95%, ctx=2775, 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=1836KiB/s (1880kB/s), 459KiB/s-462KiB/s (470kB/s-473kB/s), io=40.0MiB (41.9MB), run=22172-22315msec 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=179605: Sat Sep 5 02:01:19 2026 read: IOPS=37, BW=149KiB/s (153kB/s)(5048KiB/33849msec) slat (usec): min=34, max=84144, avg=14451.20, stdev=7832.52 clat (msec): min=17, max=355, avg=201.02, stdev=42.48 lat (msec): min=23, max=389, avg=215.48, stdev=43.94 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 86, max= 239, per=25.03%, avg=148.18, stdev=34.55, samples=67 iops : min= 21, max= 59, avg=36.58, stdev= 8.67, samples=67 write: IOPS=38, BW=153KiB/s (157kB/s)(5192KiB/33849msec); 0 zone resets slat (usec): min=31, max=11516, avg=172.72, stdev=582.63 clat (msec): min=57, max=355, avg=206.09, stdev=38.00 lat (msec): min=57, max=355, avg=206.26, stdev=37.99 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 188], 40.00th=[ 197], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 87, max= 247, per=24.76%, avg=152.78, stdev=33.48, samples=67 iops : min= 21, max= 61, avg=37.73, stdev= 8.39, samples=67 lat (msec) : 20=0.04%, 50=0.04%, 100=0.16%, 250=87.93%, 500=11.84% cpu : usr=0.25%, sys=1.78%, ctx=4527, 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=179606: Sat Sep 5 02:01:19 2026 read: IOPS=36, BW=147KiB/s (151kB/s)(4976KiB/33828msec) slat (usec): min=37, max=264978, avg=14603.02, stdev=10536.53 clat (msec): min=22, max=515, avg=199.16, stdev=45.94 lat (msec): min=42, max=535, avg=213.77, stdev=47.67 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 140], 10.00th=[ 150], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 510], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 79, max= 220, per=24.70%, avg=146.21, stdev=32.64, samples=67 iops : min= 19, max= 55, avg=36.09, stdev= 8.16, samples=67 write: IOPS=38, BW=156KiB/s (159kB/s)(5264KiB/33828msec); 0 zone resets slat (usec): min=32, max=44774, avg=189.64, stdev=1316.16 clat (msec): min=63, max=540, avg=208.40, stdev=45.96 lat (msec): min=63, max=540, avg=208.59, stdev=45.94 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 148], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 317], 99.50th=[ 493], 99.90th=[ 518], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 87, max= 240, per=25.14%, avg=155.13, stdev=37.78, samples=67 iops : min= 21, max= 60, avg=38.30, stdev= 9.53, samples=67 lat (msec) : 50=0.08%, 100=0.23%, 250=87.54%, 500=11.88%, 750=0.27% cpu : usr=0.30%, sys=1.56%, ctx=4529, 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=179607: Sat Sep 5 02:01:19 2026 read: IOPS=36, BW=147KiB/s (151kB/s)(4984KiB/33827msec) slat (usec): min=51, max=57152, avg=14515.62, stdev=7882.51 clat (msec): min=29, max=343, avg=198.47, stdev=41.12 lat (msec): min=29, max=350, avg=213.00, stdev=42.18 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 140], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 230], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 63, max= 248, per=24.84%, avg=147.04, stdev=36.08, samples=67 iops : min= 15, max= 62, avg=36.28, stdev= 9.07, samples=67 write: IOPS=38, BW=155KiB/s (159kB/s)(5256KiB/33827msec); 0 zone resets slat (usec): min=26, max=16046, avg=181.44, stdev=678.95 clat (msec): min=21, max=361, avg=208.20, stdev=40.68 lat (msec): min=21, max=361, avg=208.38, stdev=40.67 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 180], | 30.00th=[ 188], 40.00th=[ 197], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 257], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 342], 99.90th=[ 355], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 79, max= 223, per=24.99%, avg=154.19, stdev=31.03, samples=67 iops : min= 19, max= 55, avg=38.07, stdev= 7.74, samples=67 lat (msec) : 50=0.20%, 100=0.16%, 250=88.32%, 500=11.33% cpu : usr=0.31%, sys=1.68%, ctx=4536, 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=179608: Sat Sep 5 02:01:19 2026 read: IOPS=37, BW=150KiB/s (153kB/s)(5060KiB/33831msec) slat (usec): min=2526, max=56762, avg=14499.47, stdev=7637.03 clat (msec): min=22, max=355, avg=198.60, stdev=40.41 lat (msec): min=39, max=369, avg=213.11, stdev=42.20 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 142], 10.00th=[ 153], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 205], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 55, max= 232, per=25.19%, avg=149.10, stdev=33.10, samples=67 iops : min= 13, max= 58, avg=36.81, stdev= 8.29, samples=67 write: IOPS=38, BW=153KiB/s (157kB/s)(5180KiB/33831msec); 0 zone resets slat (usec): min=26, max=11599, avg=188.16, stdev=690.57 clat (msec): min=20, max=358, avg=207.01, stdev=38.80 lat (msec): min=20, max=358, avg=207.20, stdev=38.80 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 150], 10.00th=[ 163], 20.00th=[ 178], | 30.00th=[ 188], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 213], | 70.00th=[ 224], 80.00th=[ 236], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 317], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 70, max= 220, per=24.72%, avg=152.54, stdev=32.70, samples=67 iops : min= 17, max= 55, avg=37.66, stdev= 8.19, samples=67 lat (msec) : 50=0.12%, 100=0.04%, 250=88.01%, 500=11.84% cpu : usr=0.23%, sys=1.58%, ctx=4434, 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=593KiB/s (607kB/s), 147KiB/s-150KiB/s (151kB/s-153kB/s), io=19.6MiB (20.5MB), run=33827-33849msec WRITE: bw=617KiB/s (632kB/s), 153KiB/s-156KiB/s (157kB/s-159kB/s), io=20.4MiB (21.4MB), run=33827-33849msec 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=179628: Sat Sep 5 02:01:29 2026 read: IOPS=2, BW=103MiB/s (108MB/s)(40.0MiB/390msec) slat (nsec): min=17534k, max=17534k, avg=17534238.00, stdev= 0.00 clat (nsec): min=361022k, max=361022k, avg=361021870.00, stdev= 0.00 lat (nsec): min=378561k, max=378561k, avg=378560753.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.31%, ctx=10, 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=103MiB/s (108MB/s), 103MiB/s-103MiB/s (108MB/s-108MB/s), io=40.0MiB (41.9MB), run=390-390msec 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