== sanity test 398c: run fio to test AIO ================= 18:10:59 (1777500659) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.181627 s, 231 MB/s osc.lustre-OST0000-osc-ffff9abda743f000.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=147788: Wed Apr 29 18:11:50 2026 write: IOPS=53, BW=215KiB/s (220kB/s)(10.0MiB/47579msec); 0 zone resets slat (usec): min=35, max=2247, avg=216.45, stdev=175.58 clat (msec): min=38, max=531, avg=297.01, stdev=81.33 lat (msec): min=38, max=531, avg=297.23, stdev=81.35 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 163], 10.00th=[ 199], 20.00th=[ 232], | 30.00th=[ 262], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 334], 80.00th=[ 359], 90.00th=[ 401], 95.00th=[ 435], | 99.00th=[ 506], 99.50th=[ 518], 99.90th=[ 527], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 127, max= 515, per=24.87%, avg=213.87, stdev=61.34, samples=94 iops : min= 31, max= 128, avg=53.26, stdev=15.31, samples=94 lat (msec) : 50=0.62%, 100=0.62%, 250=24.18%, 500=73.20%, 750=1.37% cpu : usr=0.09%, sys=0.83%, ctx=2849, 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=147789: Wed Apr 29 18:11:50 2026 write: IOPS=53, BW=215KiB/s (220kB/s)(10.0MiB/47579msec); 0 zone resets slat (usec): min=53, max=4356, avg=231.99, stdev=198.27 clat (msec): min=26, max=545, avg=296.90, stdev=81.05 lat (msec): min=27, max=545, avg=297.13, stdev=81.05 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 157], 10.00th=[ 199], 20.00th=[ 232], | 30.00th=[ 262], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 334], 80.00th=[ 359], 90.00th=[ 401], 95.00th=[ 435], | 99.00th=[ 506], 99.50th=[ 514], 99.90th=[ 535], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 127, max= 521, per=24.89%, avg=214.02, stdev=58.16, samples=94 iops : min= 31, max= 130, avg=53.30, stdev=14.56, samples=94 lat (msec) : 50=0.23%, 100=1.25%, 250=23.63%, 500=73.79%, 750=1.09% cpu : usr=0.11%, sys=0.87%, ctx=3062, 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=147790: Wed Apr 29 18:11:50 2026 write: IOPS=53, BW=215KiB/s (220kB/s)(10.0MiB/47597msec); 0 zone resets slat (usec): min=35, max=2329, avg=225.75, stdev=177.38 clat (msec): min=67, max=545, avg=297.02, stdev=80.18 lat (msec): min=67, max=545, avg=297.25, stdev=80.19 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 163], 10.00th=[ 199], 20.00th=[ 232], | 30.00th=[ 262], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 334], 80.00th=[ 359], 90.00th=[ 397], 95.00th=[ 435], | 99.00th=[ 510], 99.50th=[ 523], 99.90th=[ 535], 99.95th=[ 542], | 99.99th=[ 550] bw ( KiB/s): min= 96, max= 514, per=24.81%, avg=213.35, stdev=58.63, samples=94 iops : min= 24, max= 128, avg=53.13, stdev=14.66, samples=94 lat (msec) : 100=1.29%, 250=24.41%, 500=72.62%, 750=1.68% cpu : usr=0.12%, sys=0.84%, ctx=3064, 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=147791: Wed Apr 29 18:11:50 2026 write: IOPS=53, BW=215KiB/s (220kB/s)(10.0MiB/47607msec); 0 zone resets slat (usec): min=44, max=2896, avg=226.87, stdev=178.83 clat (msec): min=62, max=545, avg=297.03, stdev=79.85 lat (msec): min=62, max=545, avg=297.26, stdev=79.85 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 163], 10.00th=[ 201], 20.00th=[ 234], | 30.00th=[ 262], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 313], | 70.00th=[ 334], 80.00th=[ 355], 90.00th=[ 401], 95.00th=[ 435], | 99.00th=[ 506], 99.50th=[ 514], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 542] bw ( KiB/s): min= 127, max= 516, per=24.85%, avg=213.71, stdev=57.28, samples=94 iops : min= 31, max= 129, avg=53.22, stdev=14.34, samples=94 lat (msec) : 100=1.25%, 250=23.63%, 500=73.91%, 750=1.21% cpu : usr=0.08%, sys=0.88%, ctx=2971, 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 Run status group 0 (all jobs): WRITE: bw=860KiB/s (881kB/s), 215KiB/s-215KiB/s (220kB/s-220kB/s), io=40.0MiB (41.9MB), run=47579-47607msec 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=147807: Wed Apr 29 18:12:23 2026 read: IOPS=43, BW=172KiB/s (176kB/s)(5048KiB/29301msec) slat (usec): min=1375, max=11800, avg=3685.13, stdev=1244.04 clat (msec): min=4, max=237, avg=116.99, stdev=24.32 lat (msec): min=8, max=241, avg=120.68, stdev=24.54 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 83], 10.00th=[ 89], 20.00th=[ 99], | 30.00th=[ 105], 40.00th=[ 110], 50.00th=[ 115], 60.00th=[ 123], | 70.00th=[ 128], 80.00th=[ 136], 90.00th=[ 148], 95.00th=[ 161], | 99.00th=[ 182], 99.50th=[ 186], 99.90th=[ 207], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 80, max= 248, per=25.14%, avg=171.97, stdev=40.63, samples=58 iops : min= 20, max= 62, avg=42.83, stdev=10.18, samples=58 write: IOPS=44, BW=177KiB/s (181kB/s)(5192KiB/29301msec); 0 zone resets slat (usec): min=60, max=3228, avg=229.45, stdev=194.00 clat (msec): min=66, max=445, avg=242.94, stdev=67.25 lat (msec): min=66, max=445, avg=243.17, stdev=67.26 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 140], 10.00th=[ 157], 20.00th=[ 182], | 30.00th=[ 203], 40.00th=[ 222], 50.00th=[ 241], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 305], 90.00th=[ 334], 95.00th=[ 359], | 99.00th=[ 405], 99.50th=[ 418], 99.90th=[ 443], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 111, max= 264, per=24.79%, avg=176.48, stdev=38.46, samples=58 iops : min= 27, max= 66, avg=43.97, stdev= 9.72, samples=58 lat (msec) : 10=0.08%, 20=0.12%, 50=0.20%, 100=11.21%, 250=66.29% lat (msec) : 500=22.11% cpu : usr=0.13%, sys=1.80%, ctx=5095, 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=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=147808: Wed Apr 29 18:12:23 2026 read: IOPS=42, BW=170KiB/s (174kB/s)(4976KiB/29313msec) slat (usec): min=1394, max=9540, avg=3705.89, stdev=1277.08 clat (msec): min=4, max=221, avg=116.14, stdev=25.14 lat (msec): min=8, max=226, avg=119.85, stdev=25.38 clat percentiles (msec): | 1.00th=[ 32], 5.00th=[ 83], 10.00th=[ 88], 20.00th=[ 96], | 30.00th=[ 105], 40.00th=[ 110], 50.00th=[ 115], 60.00th=[ 122], | 70.00th=[ 128], 80.00th=[ 136], 90.00th=[ 148], 95.00th=[ 157], | 99.00th=[ 180], 99.50th=[ 186], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 64, max= 272, per=24.71%, avg=169.03, stdev=48.27, samples=58 iops : min= 16, max= 68, avg=42.10, stdev=12.12, samples=58 write: IOPS=44, BW=180KiB/s (184kB/s)(5264KiB/29313msec); 0 zone resets slat (usec): min=47, max=2901, avg=220.53, stdev=166.62 clat (msec): min=67, max=440, avg=242.23, stdev=67.33 lat (msec): min=67, max=440, avg=242.45, stdev=67.34 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 140], 10.00th=[ 157], 20.00th=[ 182], | 30.00th=[ 201], 40.00th=[ 222], 50.00th=[ 241], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 300], 90.00th=[ 330], 95.00th=[ 355], | 99.00th=[ 409], 99.50th=[ 426], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 87, max= 272, per=25.11%, avg=178.76, stdev=41.45, samples=58 iops : min= 21, max= 68, avg=44.53, stdev=10.44, samples=58 lat (msec) : 10=0.04%, 20=0.08%, 50=0.55%, 100=11.64%, 250=64.53% lat (msec) : 500=23.16% cpu : usr=0.18%, sys=1.77%, ctx=5033, 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=147809: Wed Apr 29 18:12:23 2026 read: IOPS=42, BW=170KiB/s (175kB/s)(4984KiB/29241msec) slat (usec): min=40, max=11719, avg=3705.32, stdev=1301.61 clat (msec): min=3, max=248, avg=116.72, stdev=26.83 lat (msec): min=7, max=252, avg=120.43, stdev=27.14 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 80], 10.00th=[ 89], 20.00th=[ 97], | 30.00th=[ 105], 40.00th=[ 111], 50.00th=[ 116], 60.00th=[ 122], | 70.00th=[ 128], 80.00th=[ 136], 90.00th=[ 150], 95.00th=[ 163], | 99.00th=[ 182], 99.50th=[ 205], 99.90th=[ 243], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 64, max= 272, per=24.87%, avg=170.12, stdev=42.59, samples=58 iops : min= 16, max= 68, avg=42.36, stdev=10.67, samples=58 write: IOPS=44, BW=180KiB/s (184kB/s)(5256KiB/29241msec); 0 zone resets slat (usec): min=40, max=2703, avg=224.79, stdev=161.32 clat (msec): min=46, max=445, avg=241.34, stdev=68.37 lat (msec): min=46, max=445, avg=241.57, stdev=68.38 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 138], 10.00th=[ 157], 20.00th=[ 184], | 30.00th=[ 201], 40.00th=[ 220], 50.00th=[ 241], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 300], 90.00th=[ 326], 95.00th=[ 355], | 99.00th=[ 422], 99.50th=[ 430], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 95, max= 296, per=25.07%, avg=178.48, stdev=41.56, samples=58 iops : min= 23, max= 74, avg=44.47, stdev=10.45, samples=58 lat (msec) : 4=0.04%, 10=0.16%, 20=0.12%, 50=0.62%, 100=11.60% lat (msec) : 250=64.02%, 500=23.44% cpu : usr=0.18%, sys=1.77%, ctx=5013, 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=147810: Wed Apr 29 18:12:23 2026 read: IOPS=43, BW=173KiB/s (177kB/s)(5060KiB/29259msec) slat (usec): min=1437, max=10218, avg=3671.85, stdev=1256.12 clat (msec): min=3, max=236, avg=117.01, stdev=25.71 lat (msec): min=6, max=240, avg=120.69, stdev=25.91 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 83], 10.00th=[ 89], 20.00th=[ 99], | 30.00th=[ 106], 40.00th=[ 111], 50.00th=[ 116], 60.00th=[ 123], | 70.00th=[ 129], 80.00th=[ 136], 90.00th=[ 146], 95.00th=[ 161], | 99.00th=[ 184], 99.50th=[ 207], 99.90th=[ 234], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 72, max= 240, per=25.24%, avg=172.62, stdev=39.56, samples=58 iops : min= 18, max= 60, avg=43.00, stdev= 9.96, samples=58 write: IOPS=44, BW=177KiB/s (181kB/s)(5180KiB/29259msec); 0 zone resets slat (usec): min=58, max=7645, avg=232.17, stdev=272.55 clat (msec): min=45, max=459, avg=242.74, stdev=68.21 lat (msec): min=45, max=459, avg=242.98, stdev=68.21 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 138], 10.00th=[ 159], 20.00th=[ 184], | 30.00th=[ 201], 40.00th=[ 222], 50.00th=[ 241], 60.00th=[ 259], | 70.00th=[ 279], 80.00th=[ 300], 90.00th=[ 330], 95.00th=[ 359], | 99.00th=[ 418], 99.50th=[ 426], 99.90th=[ 456], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 112, max= 304, per=24.76%, avg=176.29, stdev=39.00, samples=58 iops : min= 28, max= 76, avg=43.91, stdev= 9.81, samples=58 lat (msec) : 4=0.04%, 10=0.12%, 20=0.12%, 50=0.39%, 100=10.62% lat (msec) : 250=65.90%, 500=22.81% cpu : usr=0.19%, sys=1.78%, ctx=5134, 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=685KiB/s (701kB/s), 170KiB/s-173KiB/s (174kB/s-177kB/s), io=19.6MiB (20.5MB), run=29241-29313msec WRITE: bw=713KiB/s (730kB/s), 177KiB/s-180KiB/s (181kB/s-184kB/s), io=20.4MiB (21.4MB), run=29241-29313msec 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=147818: Wed Apr 29 18:12:27 2026 read: IOPS=6, BW=270MiB/s (283MB/s)(40.0MiB/148msec) slat (nsec): min=13120k, max=13120k, avg=13120088.00, stdev= 0.00 clat (nsec): min=125016k, max=125016k, avg=125016282.00, stdev= 0.00 lat (nsec): min=138162k, max=138162k, avg=138162362.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 126], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 126], 60.00th=[ 126], | 70.00th=[ 126], 80.00th=[ 126], 90.00th=[ 126], 95.00th=[ 126], | 99.00th=[ 126], 99.50th=[ 126], 99.90th=[ 126], 99.95th=[ 126], | 99.99th=[ 126] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=8.16%, ctx=35, majf=0, minf=11 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=270MiB/s (283MB/s), 270MiB/s-270MiB/s (283MB/s-283MB/s), io=40.0MiB (41.9MB), run=148-148msec 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