== sanity test 398c: run fio to test AIO ================= 02:21:34 (1769757694) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.355355 s, 118 MB/s osc.lustre-OST0000-osc-ffff9bfc88904800.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=148754: Fri Jan 30 02:23:50 2026 write: IOPS=20, BW=80.0KiB/s (81.0kB/s)(10.0MiB/127933msec); 0 zone resets slat (usec): min=22, max=13959, avg=173.02, stdev=575.26 clat (msec): min=86, max=1471, avg=799.16, stdev=209.35 lat (msec): min=86, max=1471, avg=799.34, stdev=209.32 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 443], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 751], 50.00th=[ 802], 60.00th=[ 852], | 70.00th=[ 911], 80.00th=[ 969], 90.00th=[ 1045], 95.00th=[ 1116], | 99.00th=[ 1334], 99.50th=[ 1351], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7, max= 210, per=25.01%, avg=79.77, stdev=32.78, samples=253 iops : min= 1, max= 52, avg=19.57, stdev= 8.18, samples=253 lat (msec) : 100=0.23%, 250=0.82%, 500=6.02%, 750=32.38%, 1000=45.27% lat (msec) : 2000=15.27% cpu : usr=0.05%, sys=0.24%, ctx=1929, 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=148755: Fri Jan 30 02:23:50 2026 write: IOPS=19, BW=79.9KiB/s (81.8kB/s)(10.0MiB/128235msec); 0 zone resets slat (usec): min=22, max=19836, avg=210.47, stdev=995.99 clat (msec): min=180, max=1485, avg=800.72, stdev=205.28 lat (msec): min=180, max=1485, avg=800.94, stdev=205.29 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 468], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 751], 50.00th=[ 802], 60.00th=[ 852], | 70.00th=[ 902], 80.00th=[ 961], 90.00th=[ 1062], 95.00th=[ 1133], | 99.00th=[ 1334], 99.50th=[ 1385], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7, max= 256, per=24.93%, avg=79.52, stdev=31.34, samples=254 iops : min= 1, max= 64, avg=19.51, stdev= 7.86, samples=254 lat (msec) : 250=0.62%, 500=5.86%, 750=32.89%, 1000=44.77%, 2000=15.86% cpu : usr=0.04%, sys=0.26%, ctx=1919, 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=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=148756: Fri Jan 30 02:23:50 2026 write: IOPS=19, BW=79.9KiB/s (81.8kB/s)(10.0MiB/128128msec); 0 zone resets slat (usec): min=21, max=14138, avg=160.44, stdev=534.85 clat (msec): min=191, max=1474, avg=800.17, stdev=207.64 lat (msec): min=191, max=1474, avg=800.33, stdev=207.65 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 460], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 751], 50.00th=[ 802], 60.00th=[ 844], | 70.00th=[ 902], 80.00th=[ 978], 90.00th=[ 1053], 95.00th=[ 1133], | 99.00th=[ 1301], 99.50th=[ 1351], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 15, max= 256, per=24.83%, avg=79.20, stdev=32.50, samples=255 iops : min= 3, max= 64, avg=19.42, stdev= 8.14, samples=255 lat (msec) : 250=0.78%, 500=6.29%, 750=33.91%, 1000=43.24%, 2000=15.78% cpu : usr=0.05%, sys=0.24%, ctx=1628, 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=148757: Fri Jan 30 02:23:50 2026 write: IOPS=19, BW=79.9KiB/s (81.8kB/s)(10.0MiB/128174msec); 0 zone resets slat (usec): min=21, max=21845, avg=178.38, stdev=739.54 clat (msec): min=156, max=1470, avg=800.21, stdev=206.00 lat (msec): min=158, max=1470, avg=800.39, stdev=206.00 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 460], 10.00th=[ 550], 20.00th=[ 642], | 30.00th=[ 701], 40.00th=[ 751], 50.00th=[ 793], 60.00th=[ 844], | 70.00th=[ 902], 80.00th=[ 961], 90.00th=[ 1062], 95.00th=[ 1150], | 99.00th=[ 1284], 99.50th=[ 1351], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 15, max= 253, per=24.92%, avg=79.51, stdev=31.29, samples=254 iops : min= 3, max= 63, avg=19.50, stdev= 7.85, samples=254 lat (msec) : 250=0.62%, 500=5.70%, 750=33.91%, 1000=44.22%, 2000=15.55% cpu : usr=0.05%, sys=0.22%, ctx=1700, 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=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=319KiB/s (327kB/s), 79.9KiB/s-80.0KiB/s (81.8kB/s-81.0kB/s), io=40.0MiB (41.9MB), run=127933-128235msec 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=148786: Fri Jan 30 02:25:18 2026 read: IOPS=15, BW=61.9KiB/s (63.4kB/s)(5048KiB/81520msec) slat (usec): min=2666, max=45724, avg=11024.04, stdev=6010.58 clat (msec): min=11, max=567, avg=318.47, stdev=71.75 lat (msec): min=17, max=580, avg=329.50, stdev=72.56 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 209], 10.00th=[ 234], 20.00th=[ 262], | 30.00th=[ 284], 40.00th=[ 300], 50.00th=[ 317], 60.00th=[ 334], | 70.00th=[ 355], 80.00th=[ 376], 90.00th=[ 409], 95.00th=[ 439], | 99.00th=[ 485], 99.50th=[ 498], 99.90th=[ 550], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 15, max= 151, per=24.92%, avg=61.31, stdev=26.05, samples=162 iops : min= 3, max= 37, avg=14.87, stdev= 6.50, samples=162 write: IOPS=15, BW=63.7KiB/s (65.2kB/s)(5192KiB/81520msec); 0 zone resets slat (usec): min=23, max=9932, avg=228.08, stdev=696.27 clat (msec): min=140, max=1143, avg=681.76, stdev=177.10 lat (msec): min=140, max=1143, avg=681.99, stdev=177.13 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 384], 10.00th=[ 439], 20.00th=[ 510], | 30.00th=[ 584], 40.00th=[ 651], 50.00th=[ 693], 60.00th=[ 743], | 70.00th=[ 793], 80.00th=[ 835], 90.00th=[ 911], 95.00th=[ 953], | 99.00th=[ 1045], 99.50th=[ 1083], 99.90th=[ 1133], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 128, per=24.63%, avg=63.05, stdev=23.32, samples=162 iops : min= 1, max= 32, avg=15.30, stdev= 5.88, samples=162 lat (msec) : 20=0.04%, 50=0.20%, 100=0.08%, 250=7.77%, 500=50.62% lat (msec) : 750=21.52%, 1000=18.48%, 2000=1.29% cpu : usr=0.11%, sys=0.77%, ctx=4492, 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=148787: Fri Jan 30 02:25:18 2026 read: IOPS=15, BW=61.1KiB/s (62.5kB/s)(4976KiB/81499msec) slat (usec): min=2365, max=51738, avg=11283.58, stdev=6138.46 clat (msec): min=18, max=560, avg=316.92, stdev=72.88 lat (msec): min=23, max=580, avg=328.21, stdev=73.80 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 209], 10.00th=[ 239], 20.00th=[ 264], | 30.00th=[ 284], 40.00th=[ 296], 50.00th=[ 317], 60.00th=[ 330], | 70.00th=[ 351], 80.00th=[ 376], 90.00th=[ 409], 95.00th=[ 447], | 99.00th=[ 506], 99.50th=[ 523], 99.90th=[ 550], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 8, max= 144, per=24.65%, avg=60.64, stdev=26.16, samples=161 iops : min= 2, max= 36, avg=14.70, stdev= 6.58, samples=161 write: IOPS=16, BW=64.6KiB/s (66.1kB/s)(5264KiB/81499msec); 0 zone resets slat (usec): min=23, max=16471, avg=251.37, stdev=890.07 clat (msec): min=245, max=1121, avg=678.20, stdev=179.29 lat (msec): min=246, max=1121, avg=678.46, stdev=179.28 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 376], 10.00th=[ 439], 20.00th=[ 506], | 30.00th=[ 575], 40.00th=[ 634], 50.00th=[ 693], 60.00th=[ 743], | 70.00th=[ 785], 80.00th=[ 835], 90.00th=[ 911], 95.00th=[ 953], | 99.00th=[ 1062], 99.50th=[ 1083], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 150, per=25.01%, avg=64.02, stdev=23.09, samples=162 iops : min= 1, max= 37, avg=15.55, stdev= 5.77, samples=162 lat (msec) : 20=0.08%, 50=0.16%, 100=0.27%, 250=6.41%, 500=50.98% lat (msec) : 750=22.62%, 1000=18.24%, 2000=1.25% cpu : usr=0.09%, sys=0.75%, ctx=4276, 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=148788: Fri Jan 30 02:25:18 2026 read: IOPS=15, BW=61.2KiB/s (62.7kB/s)(4984KiB/81425msec) slat (usec): min=2499, max=44341, avg=11329.29, stdev=6084.11 clat (msec): min=27, max=585, avg=317.38, stdev=69.45 lat (msec): min=36, max=591, avg=328.71, stdev=70.29 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 218], 10.00th=[ 236], 20.00th=[ 259], | 30.00th=[ 284], 40.00th=[ 300], 50.00th=[ 313], 60.00th=[ 330], | 70.00th=[ 351], 80.00th=[ 376], 90.00th=[ 405], 95.00th=[ 435], | 99.00th=[ 493], 99.50th=[ 527], 99.90th=[ 567], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 8, max= 135, per=24.65%, avg=60.63, stdev=23.12, samples=161 iops : min= 2, max= 33, avg=14.70, stdev= 5.81, samples=161 write: IOPS=16, BW=64.5KiB/s (66.1kB/s)(5256KiB/81425msec); 0 zone resets slat (usec): min=25, max=18333, avg=277.79, stdev=1014.17 clat (msec): min=214, max=1124, avg=677.49, stdev=174.37 lat (msec): min=215, max=1124, avg=677.77, stdev=174.45 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 380], 10.00th=[ 439], 20.00th=[ 514], | 30.00th=[ 584], 40.00th=[ 642], 50.00th=[ 693], 60.00th=[ 735], | 70.00th=[ 785], 80.00th=[ 835], 90.00th=[ 902], 95.00th=[ 944], | 99.00th=[ 1053], 99.50th=[ 1083], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 15, max= 127, per=24.85%, avg=63.63, stdev=22.83, samples=161 iops : min= 3, max= 31, avg=15.46, stdev= 5.70, samples=161 lat (msec) : 50=0.04%, 100=0.27%, 250=7.15%, 500=50.08%, 750=23.59% lat (msec) : 1000=17.54%, 2000=1.33% cpu : usr=0.13%, sys=0.77%, ctx=4779, 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=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=148789: Fri Jan 30 02:25:18 2026 read: IOPS=15, BW=62.6KiB/s (64.1kB/s)(5060KiB/80784msec) slat (usec): min=48, max=45830, avg=11297.33, stdev=6154.29 clat (msec): min=11, max=728, avg=313.89, stdev=76.90 lat (msec): min=21, max=740, avg=325.19, stdev=77.67 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 201], 10.00th=[ 232], 20.00th=[ 257], | 30.00th=[ 279], 40.00th=[ 296], 50.00th=[ 313], 60.00th=[ 330], | 70.00th=[ 351], 80.00th=[ 376], 90.00th=[ 405], 95.00th=[ 439], | 99.00th=[ 485], 99.50th=[ 518], 99.90th=[ 709], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8, max= 127, per=25.31%, avg=62.26, stdev=24.66, samples=160 iops : min= 2, max= 31, avg=15.11, stdev= 6.18, samples=160 write: IOPS=16, BW=64.1KiB/s (65.7kB/s)(5180KiB/80784msec); 0 zone resets slat (usec): min=24, max=15520, avg=261.78, stdev=864.43 clat (msec): min=98, max=1252, avg=679.66, stdev=180.66 lat (msec): min=99, max=1253, avg=679.92, stdev=180.62 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 401], 10.00th=[ 439], 20.00th=[ 514], | 30.00th=[ 584], 40.00th=[ 642], 50.00th=[ 693], 60.00th=[ 743], | 70.00th=[ 793], 80.00th=[ 835], 90.00th=[ 902], 95.00th=[ 953], | 99.00th=[ 1099], 99.50th=[ 1116], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 15, max= 134, per=24.88%, avg=63.69, stdev=22.57, samples=159 iops : min= 3, max= 33, avg=15.48, stdev= 5.69, samples=159 lat (msec) : 20=0.12%, 50=0.35%, 100=0.35%, 250=7.77%, 500=49.84% lat (msec) : 750=22.58%, 1000=17.42%, 2000=1.56% cpu : usr=0.09%, sys=0.79%, ctx=4593, majf=0, minf=16 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=246KiB/s (252kB/s), 61.1KiB/s-62.6KiB/s (62.5kB/s-64.1kB/s), io=19.6MiB (20.5MB), run=80784-81520msec WRITE: bw=256KiB/s (262kB/s), 63.7KiB/s-64.6KiB/s (65.2kB/s-66.1kB/s), io=20.4MiB (21.4MB), run=80784-81520msec 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=148805: Fri Jan 30 02:25:27 2026 read: IOPS=2, BW=91.0MiB/s (96.4MB/s)(40.0MiB/435msec) slat (nsec): min=23177k, max=23177k, avg=23177293.00, stdev= 0.00 clat (nsec): min=370381k, max=370381k, avg=370380927.00, stdev= 0.00 lat (nsec): min=393562k, max=393562k, avg=393562311.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.53%, ctx=6, 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=91.0MiB/s (96.4MB/s), 91.0MiB/s-91.0MiB/s (96.4MB/s-96.4MB/s), io=40.0MiB (41.9MB), run=435-435msec 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