== sanity test 398c: run fio to test AIO ================= 19:36:49 (1788565009) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.428335 s, 97.9 MB/s osc.lustre-OST0000-osc-ffff9eb782849000.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=144991: Fri Sep 4 19:39:18 2026 write: IOPS=18, BW=73.0KiB/s (75.7kB/s)(10.0MiB/138427msec); 0 zone resets slat (usec): min=22, max=13770, avg=193.49, stdev=727.00 clat (msec): min=247, max=2143, avg=863.92, stdev=230.04 lat (msec): min=247, max=2143, avg=864.12, stdev=230.04 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 523], 10.00th=[ 625], 20.00th=[ 701], | 30.00th=[ 751], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 944], 80.00th=[ 1020], 90.00th=[ 1150], 95.00th=[ 1284], | 99.00th=[ 1536], 99.50th=[ 1653], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 224, per=25.06%, avg=73.94, stdev=28.46, samples=273 iops : min= 1, max= 56, avg=18.07, stdev= 7.19, samples=273 lat (msec) : 250=0.08%, 500=4.45%, 750=25.66%, 1000=47.27%, 2000=22.42% lat (msec) : >=2000=0.12% cpu : usr=0.05%, sys=0.26%, ctx=1752, 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=144992: Fri Sep 4 19:39:18 2026 write: IOPS=18, BW=74.0KiB/s (75.8kB/s)(10.0MiB/138361msec); 0 zone resets slat (usec): min=21, max=11286, avg=159.02, stdev=551.04 clat (msec): min=154, max=2013, avg=864.08, stdev=231.17 lat (msec): min=154, max=2013, avg=864.25, stdev=231.19 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 527], 10.00th=[ 617], 20.00th=[ 701], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 894], | 70.00th=[ 953], 80.00th=[ 1028], 90.00th=[ 1167], 95.00th=[ 1301], | 99.00th=[ 1502], 99.50th=[ 1569], 99.90th=[ 1720], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 256, per=25.51%, avg=75.27, stdev=33.07, samples=268 iops : min= 1, max= 64, avg=18.40, stdev= 8.34, samples=268 lat (msec) : 250=0.62%, 500=3.83%, 750=25.59%, 1000=47.34%, 2000=22.54% lat (msec) : >=2000=0.08% cpu : usr=0.05%, sys=0.23%, ctx=1509, 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=144993: Fri Sep 4 19:39:18 2026 write: IOPS=18, BW=73.9KiB/s (75.7kB/s)(10.0MiB/138503msec); 0 zone resets slat (usec): min=22, max=17030, avg=161.43, stdev=638.12 clat (msec): min=175, max=1816, avg=864.65, stdev=222.08 lat (msec): min=175, max=1816, avg=864.81, stdev=222.06 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 535], 10.00th=[ 634], 20.00th=[ 701], | 30.00th=[ 760], 40.00th=[ 802], 50.00th=[ 852], 60.00th=[ 885], | 70.00th=[ 953], 80.00th=[ 1020], 90.00th=[ 1133], 95.00th=[ 1284], | 99.00th=[ 1469], 99.50th=[ 1569], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 192, per=24.97%, avg=73.65, stdev=36.96, samples=274 iops : min= 1, max= 48, avg=18.00, stdev= 9.26, samples=274 lat (msec) : 250=0.35%, 500=3.75%, 750=24.57%, 1000=49.88%, 2000=21.45% cpu : usr=0.04%, sys=0.23%, ctx=1662, 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=144994: Fri Sep 4 19:39:18 2026 write: IOPS=18, BW=73.9KiB/s (75.7kB/s)(10.0MiB/138608msec); 0 zone resets slat (usec): min=22, max=9942, avg=167.08, stdev=538.24 clat (msec): min=255, max=1675, avg=865.24, stdev=221.13 lat (msec): min=255, max=1675, avg=865.41, stdev=221.12 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 531], 10.00th=[ 634], 20.00th=[ 709], | 30.00th=[ 760], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 936], 80.00th=[ 1020], 90.00th=[ 1150], 95.00th=[ 1301], | 99.00th=[ 1485], 99.50th=[ 1569], 99.90th=[ 1653], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 256, per=25.63%, avg=75.61, stdev=34.79, samples=267 iops : min= 1, max= 64, avg=18.50, stdev= 8.76, samples=267 lat (msec) : 500=3.71%, 750=24.26%, 1000=49.53%, 2000=22.50% cpu : usr=0.06%, sys=0.23%, ctx=1922, 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=296KiB/s (303kB/s), 73.9KiB/s-74.0KiB/s (75.7kB/s-75.8kB/s), io=40.0MiB (41.9MB), run=138361-138608msec 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=145024: Fri Sep 4 19:41:19 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5048KiB/110897msec) slat (usec): min=2368, max=60610, avg=14435.69, stdev=8709.68 clat (msec): min=31, max=1164, avg=416.36, stdev=119.10 lat (msec): min=54, max=1172, avg=430.80, stdev=120.34 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 268], 10.00th=[ 292], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 397], 60.00th=[ 422], | 70.00th=[ 456], 80.00th=[ 510], 90.00th=[ 575], 95.00th=[ 625], | 99.00th=[ 776], 99.50th=[ 827], 99.90th=[ 1150], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 143, per=25.17%, avg=45.30, stdev=22.93, samples=218 iops : min= 1, max= 35, avg=10.79, stdev= 5.78, samples=218 write: IOPS=11, BW=46.8KiB/s (47.9kB/s)(5192KiB/110897msec); 0 zone resets slat (usec): min=27, max=13228, avg=190.62, stdev=555.70 clat (msec): min=354, max=2093, avg=945.01, stdev=264.64 lat (msec): min=354, max=2093, avg=945.20, stdev=264.64 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 575], 10.00th=[ 642], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 869], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1267], 95.00th=[ 1469], | 99.00th=[ 1838], 99.50th=[ 1888], 99.90th=[ 1989], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7, max= 104, per=24.67%, avg=46.38, stdev=20.07, samples=219 iops : min= 1, max= 26, avg=11.06, stdev= 5.07, samples=219 lat (msec) : 50=0.08%, 100=0.16%, 250=1.25%, 500=37.89%, 750=20.27% lat (msec) : 1000=23.28%, 2000=17.03%, >=2000=0.04% cpu : usr=0.10%, sys=0.57%, ctx=4173, 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=145025: Fri Sep 4 19:41:19 2026 read: IOPS=11, BW=45.0KiB/s (46.1kB/s)(4976KiB/110455msec) slat (usec): min=2876, max=67054, avg=14338.15, stdev=8497.83 clat (msec): min=17, max=1052, avg=421.52, stdev=123.02 lat (msec): min=23, max=1058, avg=435.86, stdev=124.41 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 271], 10.00th=[ 300], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 372], 50.00th=[ 397], 60.00th=[ 426], | 70.00th=[ 464], 80.00th=[ 510], 90.00th=[ 584], 95.00th=[ 634], | 99.00th=[ 818], 99.50th=[ 885], 99.90th=[ 1003], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 104, per=24.94%, avg=44.90, stdev=19.64, samples=217 iops : min= 1, max= 26, avg=10.69, stdev= 4.97, samples=217 write: IOPS=11, BW=47.7KiB/s (48.8kB/s)(5264KiB/110455msec); 0 zone resets slat (usec): min=30, max=22249, avg=246.67, stdev=1115.57 clat (msec): min=277, max=2101, avg=928.04, stdev=275.40 lat (msec): min=277, max=2101, avg=928.29, stdev=275.45 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 542], 10.00th=[ 600], 20.00th=[ 718], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 902], 60.00th=[ 953], | 70.00th=[ 1011], 80.00th=[ 1099], 90.00th=[ 1284], 95.00th=[ 1502], | 99.00th=[ 1804], 99.50th=[ 1905], 99.90th=[ 2039], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 7, max= 112, per=24.99%, avg=46.98, stdev=21.29, samples=219 iops : min= 1, max= 28, avg=11.21, stdev= 5.41, samples=219 lat (msec) : 20=0.04%, 100=0.31%, 250=1.02%, 500=37.70%, 750=21.64% lat (msec) : 1000=23.16%, 2000=16.02%, >=2000=0.12% cpu : usr=0.10%, sys=0.55%, ctx=3826, 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=145026: Fri Sep 4 19:41:19 2026 read: IOPS=11, BW=44.9KiB/s (46.0kB/s)(4984KiB/110936msec) slat (usec): min=2414, max=64263, avg=14679.14, stdev=8449.70 clat (msec): min=7, max=1093, avg=418.43, stdev=117.28 lat (msec): min=14, max=1138, avg=433.12, stdev=118.55 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 268], 10.00th=[ 296], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 397], 60.00th=[ 422], | 70.00th=[ 460], 80.00th=[ 510], 90.00th=[ 584], 95.00th=[ 625], | 99.00th=[ 743], 99.50th=[ 818], 99.90th=[ 835], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 96, per=25.12%, avg=45.21, stdev=21.09, samples=216 iops : min= 1, max= 24, avg=10.77, stdev= 5.36, samples=216 write: IOPS=11, BW=47.4KiB/s (48.5kB/s)(5256KiB/110936msec); 0 zone resets slat (usec): min=25, max=13023, avg=229.46, stdev=716.97 clat (msec): min=283, max=2123, avg=936.98, stdev=275.50 lat (msec): min=283, max=2123, avg=937.22, stdev=275.47 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 567], 10.00th=[ 617], 20.00th=[ 726], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 902], 60.00th=[ 953], | 70.00th=[ 1011], 80.00th=[ 1083], 90.00th=[ 1267], 95.00th=[ 1485], | 99.00th=[ 1871], 99.50th=[ 1955], 99.90th=[ 2106], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 104, per=24.88%, avg=46.78, stdev=19.26, samples=219 iops : min= 1, max= 26, avg=11.16, stdev= 4.85, samples=219 lat (msec) : 10=0.04%, 50=0.12%, 100=0.08%, 250=1.21%, 500=37.42% lat (msec) : 750=20.78%, 1000=24.14%, 2000=16.02%, >=2000=0.20% cpu : usr=0.08%, sys=0.53%, ctx=3756, 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=145027: Fri Sep 4 19:41:19 2026 read: IOPS=11, BW=45.9KiB/s (47.0kB/s)(5060KiB/110161msec) slat (usec): min=51, max=76417, avg=14207.11, stdev=8517.98 clat (msec): min=25, max=1163, avg=417.94, stdev=130.36 lat (msec): min=25, max=1175, avg=432.16, stdev=131.75 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 255], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 397], 60.00th=[ 422], | 70.00th=[ 460], 80.00th=[ 506], 90.00th=[ 567], 95.00th=[ 634], | 99.00th=[ 835], 99.50th=[ 961], 99.90th=[ 1150], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 96, per=25.64%, avg=46.15, stdev=20.85, samples=215 iops : min= 1, max= 24, avg=11.01, stdev= 5.28, samples=215 write: IOPS=11, BW=47.0KiB/s (48.1kB/s)(5180KiB/110161msec); 0 zone resets slat (usec): min=29, max=31126, avg=278.54, stdev=1308.04 clat (msec): min=150, max=2136, avg=937.69, stdev=284.72 lat (msec): min=150, max=2136, avg=937.97, stdev=284.82 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 542], 10.00th=[ 609], 20.00th=[ 718], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 961], | 70.00th=[ 1020], 80.00th=[ 1099], 90.00th=[ 1301], 95.00th=[ 1519], | 99.00th=[ 1804], 99.50th=[ 1921], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 112, per=24.77%, avg=46.57, stdev=21.37, samples=217 iops : min= 1, max= 28, avg=11.11, stdev= 5.38, samples=217 lat (msec) : 50=0.31%, 100=0.23%, 250=1.91%, 500=37.77%, 750=20.00% lat (msec) : 1000=22.77%, 2000=16.88%, >=2000=0.12% cpu : usr=0.12%, sys=0.59%, ctx=4204, 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=181KiB/s (185kB/s), 44.9KiB/s-45.9KiB/s (46.0kB/s-47.0kB/s), io=19.6MiB (20.5MB), run=110161-110936msec WRITE: bw=188KiB/s (193kB/s), 46.8KiB/s-47.7KiB/s (47.9kB/s-48.8kB/s), io=20.4MiB (21.4MB), run=110161-110936msec 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=145056: Fri Sep 4 19:41:30 2026 read: IOPS=2, BW=83.2MiB/s (87.2MB/s)(40.0MiB/481msec) slat (nsec): min=27377k, max=27377k, avg=27377365.00, stdev= 0.00 clat (nsec): min=440162k, max=440162k, avg=440161527.00, stdev= 0.00 lat (nsec): min=467545k, max=467545k, avg=467545181.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.29%, ctx=4, 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=83.2MiB/s (87.2MB/s), 83.2MiB/s-83.2MiB/s (87.2MB/s-87.2MB/s), io=40.0MiB (41.9MB), run=481-481msec 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