== sanity test 398c: run fio to test AIO ================= 01:08:16 (1769062096) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.499608 s, 84.0 MB/s osc.lustre-OST0000-osc-ffff8bf418e21800.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=183421: Thu Jan 22 01:08:50 2026 write: IOPS=100, BW=401KiB/s (411kB/s)(10.0MiB/25535msec); 0 zone resets slat (usec): min=23, max=15586, avg=214.38, stdev=710.44 clat (msec): min=29, max=280, avg=159.13, stdev=42.06 lat (msec): min=29, max=280, avg=159.35, stdev=42.08 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 92], 10.00th=[ 108], 20.00th=[ 126], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 215], 95.00th=[ 239], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 255, max= 654, per=24.89%, avg=399.24, stdev=90.23, samples=50 iops : min= 63, max= 163, avg=99.46, stdev=22.54, samples=50 lat (msec) : 50=0.12%, 100=7.34%, 250=89.53%, 500=3.01% cpu : usr=0.20%, sys=1.14%, ctx=2356, 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=183422: Thu Jan 22 01:08:50 2026 write: IOPS=100, BW=401KiB/s (411kB/s)(10.0MiB/25509msec); 0 zone resets slat (usec): min=23, max=10761, avg=274.16, stdev=818.94 clat (msec): min=12, max=299, avg=158.98, stdev=43.06 lat (msec): min=13, max=300, avg=159.26, stdev=43.06 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 92], 10.00th=[ 106], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 218], 95.00th=[ 239], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 256, max= 680, per=25.00%, avg=401.04, stdev=89.27, samples=50 iops : min= 64, max= 170, avg=99.94, stdev=22.33, samples=50 lat (msec) : 20=0.04%, 50=0.08%, 100=8.16%, 250=88.83%, 500=2.89% cpu : usr=0.31%, sys=1.24%, ctx=2898, 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=183423: Thu Jan 22 01:08:50 2026 write: IOPS=100, BW=402KiB/s (412kB/s)(10.0MiB/25447msec); 0 zone resets slat (usec): min=22, max=12978, avg=249.13, stdev=792.71 clat (msec): min=17, max=282, avg=158.28, stdev=42.60 lat (msec): min=17, max=285, avg=158.53, stdev=42.60 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 88], 10.00th=[ 106], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 220], 95.00th=[ 232], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 284] bw ( KiB/s): min= 256, max= 654, per=24.99%, avg=400.76, stdev=87.26, samples=50 iops : min= 64, max= 163, avg=99.86, stdev=21.80, samples=50 lat (msec) : 20=0.04%, 50=0.66%, 100=7.30%, 250=89.45%, 500=2.54% cpu : usr=0.27%, sys=1.22%, ctx=2435, 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=183424: Thu Jan 22 01:08:50 2026 write: IOPS=100, BW=401KiB/s (411kB/s)(10.0MiB/25536msec); 0 zone resets slat (usec): min=23, max=23143, avg=273.63, stdev=975.12 clat (msec): min=13, max=294, avg=158.79, stdev=41.99 lat (msec): min=19, max=294, avg=159.06, stdev=42.02 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 95], 10.00th=[ 109], 20.00th=[ 126], | 30.00th=[ 136], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 256, max= 638, per=24.89%, avg=399.26, stdev=84.85, samples=50 iops : min= 64, max= 159, avg=99.46, stdev=21.20, samples=50 lat (msec) : 20=0.04%, 50=0.12%, 100=6.64%, 250=90.47%, 500=2.73% cpu : usr=0.25%, sys=1.37%, ctx=2717, 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=1604KiB/s (1643kB/s), 401KiB/s-402KiB/s (411kB/s-412kB/s), io=40.0MiB (41.9MB), run=25447-25536msec 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=183439: Thu Jan 22 01:09:23 2026 read: IOPS=51, BW=206KiB/s (211kB/s)(5048KiB/24462msec) slat (usec): min=39, max=56028, avg=11430.86, stdev=6030.80 clat (msec): min=27, max=297, avg=143.47, stdev=41.32 lat (msec): min=48, max=316, avg=154.90, stdev=43.45 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 89], 10.00th=[ 97], 20.00th=[ 108], | 30.00th=[ 117], 40.00th=[ 128], 50.00th=[ 138], 60.00th=[ 150], | 70.00th=[ 161], 80.00th=[ 176], 90.00th=[ 203], 95.00th=[ 222], | 99.00th=[ 259], 99.50th=[ 268], 99.90th=[ 284], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 75, max= 311, per=24.90%, avg=204.21, stdev=51.59, samples=48 iops : min= 18, max= 77, avg=50.58, stdev=12.95, samples=48 write: IOPS=53, BW=212KiB/s (217kB/s)(5192KiB/24462msec); 0 zone resets slat (usec): min=22, max=11455, avg=285.08, stdev=836.03 clat (msec): min=33, max=296, avg=147.31, stdev=39.60 lat (msec): min=35, max=296, avg=147.60, stdev=39.62 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 96], 10.00th=[ 103], 20.00th=[ 114], | 30.00th=[ 123], 40.00th=[ 130], 50.00th=[ 140], 60.00th=[ 155], | 70.00th=[ 167], 80.00th=[ 180], 90.00th=[ 203], 95.00th=[ 215], | 99.00th=[ 264], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 60, max= 335, per=24.69%, avg=210.83, stdev=60.03, samples=48 iops : min= 15, max= 83, avg=52.25, stdev=15.01, samples=48 lat (msec) : 50=0.12%, 100=9.65%, 250=88.71%, 500=1.52% cpu : usr=0.30%, sys=2.50%, ctx=4285, 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=183440: Thu Jan 22 01:09:23 2026 read: IOPS=51, BW=205KiB/s (210kB/s)(4976KiB/24306msec) slat (usec): min=2930, max=46023, avg=11511.85, stdev=6014.41 clat (msec): min=6, max=299, avg=142.58, stdev=41.40 lat (msec): min=17, max=332, avg=154.11, stdev=43.46 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 90], 10.00th=[ 95], 20.00th=[ 106], | 30.00th=[ 116], 40.00th=[ 127], 50.00th=[ 136], 60.00th=[ 148], | 70.00th=[ 161], 80.00th=[ 176], 90.00th=[ 203], 95.00th=[ 220], | 99.00th=[ 257], 99.50th=[ 275], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 90, max= 367, per=24.92%, avg=204.35, stdev=55.97, samples=48 iops : min= 22, max= 91, avg=50.62, stdev=14.00, samples=48 write: IOPS=54, BW=217KiB/s (222kB/s)(5264KiB/24306msec); 0 zone resets slat (usec): min=30, max=13936, avg=262.61, stdev=789.80 clat (msec): min=70, max=302, avg=147.47, stdev=38.39 lat (msec): min=71, max=302, avg=147.74, stdev=38.41 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 97], 10.00th=[ 105], 20.00th=[ 113], | 30.00th=[ 123], 40.00th=[ 130], 50.00th=[ 140], 60.00th=[ 153], | 70.00th=[ 167], 80.00th=[ 180], 90.00th=[ 201], 95.00th=[ 220], | 99.00th=[ 257], 99.50th=[ 262], 99.90th=[ 300], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 103, max= 328, per=25.42%, avg=217.08, stdev=55.33, samples=48 iops : min= 25, max= 82, avg=53.79, stdev=13.92, samples=48 lat (msec) : 10=0.04%, 50=0.04%, 100=10.70%, 250=87.93%, 500=1.29% cpu : usr=0.32%, sys=2.53%, ctx=4522, 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=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=183441: Thu Jan 22 01:09:23 2026 read: IOPS=51, BW=207KiB/s (212kB/s)(4984KiB/24070msec) slat (usec): min=42, max=53348, avg=11185.93, stdev=5920.77 clat (msec): min=21, max=339, avg=141.83, stdev=40.71 lat (msec): min=21, max=346, avg=153.02, stdev=42.79 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 90], 10.00th=[ 96], 20.00th=[ 108], | 30.00th=[ 118], 40.00th=[ 126], 50.00th=[ 136], 60.00th=[ 146], | 70.00th=[ 159], 80.00th=[ 174], 90.00th=[ 197], 95.00th=[ 213], | 99.00th=[ 262], 99.50th=[ 288], 99.90th=[ 326], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 119, max= 343, per=25.35%, avg=207.83, stdev=55.83, samples=47 iops : min= 29, max= 85, avg=51.49, stdev=14.01, samples=47 write: IOPS=54, BW=218KiB/s (224kB/s)(5256KiB/24070msec); 0 zone resets slat (usec): min=27, max=8066, avg=262.58, stdev=660.68 clat (msec): min=32, max=319, avg=147.20, stdev=38.61 lat (msec): min=32, max=320, avg=147.47, stdev=38.59 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 95], 10.00th=[ 103], 20.00th=[ 114], | 30.00th=[ 124], 40.00th=[ 132], 50.00th=[ 142], 60.00th=[ 153], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 199], 95.00th=[ 220], | 99.00th=[ 253], 99.50th=[ 264], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 112, max= 311, per=25.60%, avg=218.66, stdev=52.27, samples=47 iops : min= 28, max= 77, avg=54.19, stdev=13.09, samples=47 lat (msec) : 50=0.16%, 100=10.55%, 250=87.77%, 500=1.52% cpu : usr=0.38%, sys=2.53%, ctx=4667, 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=183442: Thu Jan 22 01:09:23 2026 read: IOPS=51, BW=207KiB/s (212kB/s)(5060KiB/24395msec) slat (usec): min=2842, max=59584, avg=11527.11, stdev=6090.77 clat (msec): min=61, max=292, avg=144.29, stdev=40.31 lat (msec): min=73, max=310, avg=155.83, stdev=42.48 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 92], 10.00th=[ 99], 20.00th=[ 108], | 30.00th=[ 117], 40.00th=[ 127], 50.00th=[ 138], 60.00th=[ 150], | 70.00th=[ 163], 80.00th=[ 178], 90.00th=[ 201], 95.00th=[ 222], | 99.00th=[ 257], 99.50th=[ 266], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 97, max= 304, per=25.30%, avg=207.50, stdev=52.43, samples=48 iops : min= 24, max= 76, avg=51.40, stdev=13.14, samples=48 write: IOPS=53, BW=212KiB/s (217kB/s)(5180KiB/24395msec); 0 zone resets slat (usec): min=27, max=9228, avg=254.04, stdev=684.62 clat (msec): min=76, max=315, avg=146.90, stdev=39.51 lat (msec): min=76, max=315, avg=147.16, stdev=39.51 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 96], 10.00th=[ 103], 20.00th=[ 112], | 30.00th=[ 121], 40.00th=[ 129], 50.00th=[ 140], 60.00th=[ 153], | 70.00th=[ 165], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 220], | 99.00th=[ 257], 99.50th=[ 275], 99.90th=[ 305], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 120, max= 360, per=24.80%, avg=211.79, stdev=55.98, samples=48 iops : min= 30, max= 90, avg=52.48, stdev=14.01, samples=48 lat (msec) : 100=10.04%, 250=88.75%, 500=1.21% cpu : usr=0.36%, sys=2.46%, ctx=4378, 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=820KiB/s (840kB/s), 205KiB/s-207KiB/s (210kB/s-212kB/s), io=19.6MiB (20.5MB), run=24070-24462msec WRITE: bw=854KiB/s (875kB/s), 212KiB/s-218KiB/s (217kB/s-224kB/s), io=20.4MiB (21.4MB), run=24070-24462msec 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=183450: Thu Jan 22 01:09:33 2026 read: IOPS=2, BW=87.7MiB/s (91.0MB/s)(40.0MiB/456msec) slat (nsec): min=27141k, max=27141k, avg=27141496.00, stdev= 0.00 clat (nsec): min=404816k, max=404816k, avg=404815790.00, stdev= 0.00 lat (nsec): min=431964k, max=431964k, avg=431963623.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.30%, ctx=5, 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=87.7MiB/s (91.0MB/s), 87.7MiB/s-87.7MiB/s (91.0MB/s-91.0MB/s), io=40.0MiB (41.9MB), run=456-456msec 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