== sanity test 398c: run fio to test AIO ================= 02:39:57 (1788935997) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.481778 s, 87.1 MB/s osc.lustre-OST0000-osc-ffff889760513000.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=180524: Wed Sep 9 02:40:31 2026 write: IOPS=104, BW=420KiB/s (430kB/s)(10.0MiB/24385msec); 0 zone resets slat (usec): min=29, max=7956, avg=199.17, stdev=512.70 clat (msec): min=19, max=314, avg=151.16, stdev=32.72 lat (msec): min=19, max=314, avg=151.37, stdev=32.71 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 105], 10.00th=[ 114], 20.00th=[ 125], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 150], 60.00th=[ 157], | 70.00th=[ 163], 80.00th=[ 178], 90.00th=[ 190], 95.00th=[ 207], | 99.00th=[ 243], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 255, max= 636, per=24.96%, avg=419.02, stdev=71.32, samples=48 iops : min= 63, max= 159, avg=104.35, stdev=17.93, samples=48 lat (msec) : 20=0.04%, 50=0.12%, 100=2.03%, 250=97.19%, 500=0.62% cpu : usr=0.24%, sys=1.04%, ctx=2430, 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=180525: Wed Sep 9 02:40:31 2026 write: IOPS=105, BW=423KiB/s (433kB/s)(10.0MiB/24220msec); 0 zone resets slat (usec): min=29, max=11039, avg=297.69, stdev=815.47 clat (msec): min=21, max=331, avg=150.90, stdev=33.57 lat (msec): min=25, max=331, avg=151.20, stdev=33.50 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 104], 10.00th=[ 112], 20.00th=[ 125], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 157], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 190], 95.00th=[ 207], | 99.00th=[ 259], 99.50th=[ 292], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 330] bw ( KiB/s): min= 247, max= 536, per=25.04%, avg=420.50, stdev=71.31, samples=48 iops : min= 61, max= 134, avg=104.75, stdev=17.90, samples=48 lat (msec) : 50=0.31%, 100=3.40%, 250=95.12%, 500=1.17% cpu : usr=0.30%, sys=1.32%, ctx=2965, 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=180526: Wed Sep 9 02:40:31 2026 write: IOPS=105, BW=420KiB/s (430kB/s)(10.0MiB/24359msec); 0 zone resets slat (usec): min=28, max=14776, avg=223.60, stdev=714.14 clat (msec): min=31, max=331, avg=150.88, stdev=32.10 lat (msec): min=31, max=331, avg=151.10, stdev=32.07 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 105], 10.00th=[ 114], 20.00th=[ 125], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 192], 95.00th=[ 203], | 99.00th=[ 247], 99.50th=[ 279], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 231, max= 612, per=25.00%, avg=419.83, stdev=69.00, samples=48 iops : min= 57, max= 153, avg=104.54, stdev=17.35, samples=48 lat (msec) : 50=0.12%, 100=3.01%, 250=96.05%, 500=0.82% cpu : usr=0.21%, sys=1.14%, ctx=2267, 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=180527: Wed Sep 9 02:40:31 2026 write: IOPS=105, BW=421KiB/s (431kB/s)(10.0MiB/24325msec); 0 zone resets slat (usec): min=30, max=9268, avg=199.75, stdev=610.91 clat (msec): min=19, max=298, avg=151.12, stdev=32.07 lat (msec): min=20, max=298, avg=151.33, stdev=32.05 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 108], 10.00th=[ 117], 20.00th=[ 126], | 30.00th=[ 133], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 167], 80.00th=[ 174], 90.00th=[ 190], 95.00th=[ 203], | 99.00th=[ 243], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 296], | 99.99th=[ 300] bw ( KiB/s): min= 255, max= 636, per=25.06%, avg=420.71, stdev=72.24, samples=48 iops : min= 63, max= 159, avg=104.79, stdev=18.11, samples=48 lat (msec) : 20=0.04%, 50=0.08%, 100=3.24%, 250=95.86%, 500=0.78% cpu : usr=0.23%, sys=1.09%, ctx=1798, 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=1680KiB/s (1720kB/s), 420KiB/s-423KiB/s (430kB/s-433kB/s), io=40.0MiB (41.9MB), run=24220-24385msec 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=180541: Wed Sep 9 02:41:16 2026 read: IOPS=35, BW=140KiB/s (144kB/s)(5048KiB/35942msec) slat (usec): min=2831, max=62330, avg=16389.04, stdev=8824.61 clat (msec): min=52, max=429, avg=212.28, stdev=50.54 lat (msec): min=66, max=447, avg=228.68, stdev=52.51 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 253], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 393], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 60, max= 269, per=25.02%, avg=139.63, stdev=34.45, samples=71 iops : min= 15, max= 67, avg=34.37, stdev= 8.62, samples=71 write: IOPS=36, BW=144KiB/s (148kB/s)(5192KiB/35942msec); 0 zone resets slat (usec): min=31, max=8032, avg=228.26, stdev=646.63 clat (msec): min=88, max=368, avg=216.94, stdev=46.44 lat (msec): min=88, max=369, avg=217.17, stdev=46.43 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 203], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 257], 90.00th=[ 279], 95.00th=[ 296], | 99.00th=[ 338], 99.50th=[ 342], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 53, max= 216, per=24.79%, avg=144.03, stdev=33.94, samples=71 iops : min= 13, max= 54, avg=35.45, stdev= 8.48, samples=71 lat (msec) : 100=0.55%, 250=76.60%, 500=22.85% cpu : usr=0.24%, sys=1.48%, ctx=3738, 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=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=180542: Wed Sep 9 02:41:16 2026 read: IOPS=34, BW=139KiB/s (142kB/s)(4976KiB/35838msec) slat (usec): min=2956, max=70489, avg=16048.99, stdev=9255.54 clat (msec): min=22, max=470, avg=212.54, stdev=51.94 lat (msec): min=30, max=488, avg=228.60, stdev=53.95 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 136], 10.00th=[ 153], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 430], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 47, max= 207, per=24.64%, avg=137.51, stdev=29.86, samples=71 iops : min= 11, max= 51, avg=33.82, stdev= 7.48, samples=71 write: IOPS=36, BW=147KiB/s (150kB/s)(5264KiB/35838msec); 0 zone resets slat (usec): min=32, max=11971, avg=229.85, stdev=765.70 clat (msec): min=37, max=433, avg=217.48, stdev=47.85 lat (msec): min=37, max=434, avg=217.72, stdev=47.85 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 138], 10.00th=[ 159], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 259], 90.00th=[ 279], 95.00th=[ 296], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 372], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 71, max= 285, per=25.14%, avg=146.06, stdev=40.14, samples=71 iops : min= 17, max= 71, avg=35.97, stdev=10.05, samples=71 lat (msec) : 50=0.16%, 100=0.82%, 250=75.16%, 500=23.87% cpu : usr=0.26%, sys=1.49%, ctx=3643, 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=180543: Wed Sep 9 02:41:16 2026 read: IOPS=34, BW=139KiB/s (142kB/s)(4984KiB/35903msec) slat (usec): min=34, max=74409, avg=16332.68, stdev=9274.98 clat (msec): min=89, max=416, avg=212.19, stdev=50.00 lat (msec): min=97, max=447, avg=228.53, stdev=52.48 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 239], 80.00th=[ 253], 90.00th=[ 279], 95.00th=[ 292], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 405], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 63, max= 277, per=24.75%, avg=138.13, stdev=34.36, samples=71 iops : min= 15, max= 69, avg=33.97, stdev= 8.60, samples=71 write: IOPS=36, BW=146KiB/s (150kB/s)(5256KiB/35903msec); 0 zone resets slat (usec): min=30, max=15525, avg=235.02, stdev=869.49 clat (msec): min=27, max=426, avg=219.70, stdev=47.86 lat (msec): min=27, max=426, avg=219.93, stdev=47.83 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 142], 10.00th=[ 163], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 207], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 241], 80.00th=[ 257], 90.00th=[ 275], 95.00th=[ 305], | 99.00th=[ 347], 99.50th=[ 363], 99.90th=[ 380], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 79, max= 223, per=25.01%, avg=145.30, stdev=35.43, samples=71 iops : min= 19, max= 55, avg=35.77, stdev= 8.89, samples=71 lat (msec) : 50=0.04%, 100=0.47%, 250=76.41%, 500=23.09% cpu : usr=0.27%, sys=1.48%, ctx=3859, 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=180544: Wed Sep 9 02:41:16 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(5060KiB/35928msec) slat (usec): min=3050, max=65513, avg=15898.59, stdev=9036.62 clat (msec): min=14, max=423, avg=210.83, stdev=51.92 lat (msec): min=31, max=451, avg=226.74, stdev=54.00 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 351], 99.50th=[ 380], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 55, max= 253, per=25.11%, avg=140.13, stdev=37.24, samples=71 iops : min= 13, max= 63, avg=34.48, stdev= 9.33, samples=71 write: IOPS=36, BW=144KiB/s (148kB/s)(5180KiB/35928msec); 0 zone resets slat (usec): min=32, max=11225, avg=218.15, stdev=651.74 clat (msec): min=91, max=446, avg=219.56, stdev=47.43 lat (msec): min=91, max=446, avg=219.78, stdev=47.43 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 146], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 215], 60.00th=[ 230], | 70.00th=[ 243], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 384], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 70, max= 221, per=24.70%, avg=143.48, stdev=31.07, samples=71 iops : min= 17, max= 55, avg=35.32, stdev= 7.77, samples=71 lat (msec) : 20=0.08%, 50=0.08%, 100=0.31%, 250=76.91%, 500=22.62% cpu : usr=0.23%, sys=1.33%, ctx=3319, 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=558KiB/s (572kB/s), 139KiB/s-141KiB/s (142kB/s-144kB/s), io=19.6MiB (20.5MB), run=35838-35942msec WRITE: bw=581KiB/s (595kB/s), 144KiB/s-147KiB/s (148kB/s-150kB/s), io=20.4MiB (21.4MB), run=35838-35942msec 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=180558: Wed Sep 9 02:41:27 2026 read: IOPS=2, BW=95.5MiB/s (100MB/s)(40.0MiB/419msec) slat (nsec): min=41786k, max=41786k, avg=41785892.00, stdev= 0.00 clat (nsec): min=358589k, max=358589k, avg=358589183.00, stdev= 0.00 lat (nsec): min=400380k, max=400380k, avg=400379683.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.15%, ctx=13, 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=95.5MiB/s (100MB/s), 95.5MiB/s-95.5MiB/s (100MB/s-100MB/s), io=40.0MiB (41.9MB), run=419-419msec 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