== sanity test 398c: run fio to test AIO ================= 18:23:23 (1786314203) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.298932 s, 140 MB/s osc.lustre-OST0000-osc-ffff8b7e605f2800.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=144428: Sun Aug 9 18:25:49 2026 write: IOPS=18, BW=74.4KiB/s (76.2kB/s)(10.0MiB/137693msec); 0 zone resets slat (usec): min=52, max=47987, avg=648.36, stdev=2640.18 clat (msec): min=171, max=1687, avg=858.06, stdev=195.43 lat (msec): min=171, max=1688, avg=858.71, stdev=195.39 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 584], 10.00th=[ 634], 20.00th=[ 709], | 30.00th=[ 751], 40.00th=[ 793], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 936], 80.00th=[ 995], 90.00th=[ 1116], 95.00th=[ 1217], | 99.00th=[ 1401], 99.50th=[ 1536], 99.90th=[ 1586], 99.95th=[ 1653], | 99.99th=[ 1687] bw ( KiB/s): min= 8, max= 224, per=25.11%, avg=74.58, stdev=28.14, samples=268 iops : min= 2, max= 56, avg=18.26, stdev= 7.07, samples=268 lat (msec) : 250=0.04%, 500=2.42%, 750=26.52%, 1000=51.45%, 2000=19.57% cpu : usr=0.07%, sys=0.52%, ctx=2495, 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=144429: Sun Aug 9 18:25:49 2026 write: IOPS=18, BW=74.5KiB/s (76.2kB/s)(10.0MiB/137524msec); 0 zone resets slat (usec): min=46, max=45958, avg=565.41, stdev=1978.38 clat (msec): min=49, max=1834, avg=858.06, stdev=211.47 lat (msec): min=49, max=1834, avg=858.64, stdev=211.46 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 567], 10.00th=[ 642], 20.00th=[ 709], | 30.00th=[ 751], 40.00th=[ 793], 50.00th=[ 835], 60.00th=[ 877], | 70.00th=[ 936], 80.00th=[ 1003], 90.00th=[ 1116], 95.00th=[ 1250], | 99.00th=[ 1536], 99.50th=[ 1586], 99.90th=[ 1703], 99.95th=[ 1720], | 99.99th=[ 1838] bw ( KiB/s): min= 7, max= 208, per=25.10%, avg=74.56, stdev=31.80, samples=268 iops : min= 1, max= 52, avg=18.27, stdev= 8.00, samples=268 lat (msec) : 50=0.04%, 100=0.04%, 250=0.59%, 500=2.19%, 750=26.37% lat (msec) : 1000=50.94%, 2000=19.84% cpu : usr=0.08%, sys=0.44%, ctx=2673, 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=144430: Sun Aug 9 18:25:49 2026 write: IOPS=18, BW=74.3KiB/s (76.1kB/s)(10.0MiB/137754msec); 0 zone resets slat (usec): min=43, max=46660, avg=568.96, stdev=2079.33 clat (msec): min=105, max=1721, avg=858.73, stdev=194.98 lat (msec): min=106, max=1721, avg=859.30, stdev=195.03 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 592], 10.00th=[ 642], 20.00th=[ 709], | 30.00th=[ 760], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 927], 80.00th=[ 1003], 90.00th=[ 1099], 95.00th=[ 1200], | 99.00th=[ 1452], 99.50th=[ 1653], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 130, per=25.57%, avg=75.94, stdev=29.20, samples=263 iops : min= 1, max= 32, avg=18.62, stdev= 7.36, samples=263 lat (msec) : 250=0.04%, 500=1.95%, 750=25.55%, 1000=52.23%, 2000=20.23% cpu : usr=0.06%, sys=0.46%, ctx=2457, 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=144431: Sun Aug 9 18:25:49 2026 write: IOPS=18, BW=74.4KiB/s (76.2kB/s)(10.0MiB/137692msec); 0 zone resets slat (usec): min=49, max=53606, avg=554.45, stdev=1714.68 clat (msec): min=228, max=1555, avg=858.70, stdev=198.12 lat (msec): min=228, max=1555, avg=859.26, stdev=198.11 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 584], 10.00th=[ 642], 20.00th=[ 709], | 30.00th=[ 760], 40.00th=[ 802], 50.00th=[ 844], 60.00th=[ 885], | 70.00th=[ 927], 80.00th=[ 995], 90.00th=[ 1116], 95.00th=[ 1234], | 99.00th=[ 1435], 99.50th=[ 1485], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7, max= 192, per=25.02%, avg=74.30, stdev=30.58, samples=269 iops : min= 1, max= 48, avg=18.20, stdev= 7.70, samples=269 lat (msec) : 250=0.31%, 500=2.54%, 750=25.98%, 1000=51.41%, 2000=19.77% cpu : usr=0.07%, sys=0.42%, ctx=2561, 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=297KiB/s (304kB/s), 74.3KiB/s-74.5KiB/s (76.1kB/s-76.2kB/s), io=40.0MiB (41.9MB), run=137524-137754msec 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=144462: Sun Aug 9 18:27:50 2026 read: IOPS=11, BW=44.5KiB/s (45.6kB/s)(5048KiB/113478msec) slat (msec): min=3, max=348, avg=25.10, stdev=24.74 clat (msec): min=44, max=1168, avg=466.55, stdev=143.72 lat (msec): min=72, max=1195, avg=491.67, stdev=143.99 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 275], 10.00th=[ 300], 20.00th=[ 347], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 451], 60.00th=[ 485], | 70.00th=[ 523], 80.00th=[ 567], 90.00th=[ 642], 95.00th=[ 726], | 99.00th=[ 894], 99.50th=[ 1045], 99.90th=[ 1099], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 120, per=25.23%, avg=44.41, stdev=20.32, samples=219 iops : min= 1, max= 30, avg=10.66, stdev= 5.14, samples=219 write: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5192KiB/113478msec); 0 zone resets slat (usec): min=43, max=105178, avg=787.84, stdev=3803.19 clat (msec): min=99, max=1824, avg=916.20, stdev=239.67 lat (msec): min=102, max=1825, avg=916.99, stdev=239.72 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 535], 10.00th=[ 617], 20.00th=[ 709], | 30.00th=[ 785], 40.00th=[ 852], 50.00th=[ 911], 60.00th=[ 969], | 70.00th=[ 1028], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1334], | 99.00th=[ 1552], 99.50th=[ 1620], 99.90th=[ 1687], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 124, per=24.99%, avg=45.98, stdev=19.63, samples=219 iops : min= 1, max= 31, avg=11.05, stdev= 4.96, samples=219 lat (msec) : 50=0.04%, 100=0.16%, 250=0.86%, 500=32.19%, 750=26.68% lat (msec) : 1000=21.95%, 2000=18.12% cpu : usr=0.10%, sys=0.83%, ctx=4530, 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=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=144463: Sun Aug 9 18:27:50 2026 read: IOPS=11, BW=44.3KiB/s (45.4kB/s)(4976KiB/112351msec) slat (usec): min=87, max=259643, avg=24301.69, stdev=21954.43 clat (msec): min=13, max=1114, avg=467.12, stdev=139.78 lat (msec): min=13, max=1121, avg=491.43, stdev=139.99 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 355], | 30.00th=[ 388], 40.00th=[ 418], 50.00th=[ 451], 60.00th=[ 485], | 70.00th=[ 518], 80.00th=[ 567], 90.00th=[ 642], 95.00th=[ 726], | 99.00th=[ 885], 99.50th=[ 902], 99.90th=[ 1099], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 104, per=24.92%, avg=43.86, stdev=21.32, samples=219 iops : min= 1, max= 26, avg=10.53, stdev= 5.34, samples=219 write: IOPS=11, BW=46.9KiB/s (47.0kB/s)(5264KiB/112351msec); 0 zone resets slat (usec): min=54, max=135854, avg=714.82, stdev=4352.90 clat (msec): min=139, max=1721, avg=899.55, stdev=247.32 lat (msec): min=139, max=1721, avg=900.27, stdev=247.25 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 531], 10.00th=[ 600], 20.00th=[ 693], | 30.00th=[ 751], 40.00th=[ 818], 50.00th=[ 885], 60.00th=[ 953], | 70.00th=[ 1011], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1318], | 99.00th=[ 1536], 99.50th=[ 1603], 99.90th=[ 1670], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 116, per=25.20%, avg=46.37, stdev=19.63, samples=219 iops : min= 1, max= 29, avg=11.15, stdev= 4.97, samples=219 lat (msec) : 20=0.08%, 100=0.16%, 250=1.13%, 500=32.11%, 750=28.32% lat (msec) : 1000=21.45%, 2000=16.76% cpu : usr=0.11%, sys=0.96%, ctx=4398, 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=144464: Sun Aug 9 18:27:50 2026 read: IOPS=10, BW=43.9KiB/s (44.0kB/s)(4984KiB/113480msec) slat (msec): min=3, max=262, avg=25.54, stdev=24.79 clat (msec): min=14, max=1119, avg=461.97, stdev=136.35 lat (msec): min=41, max=1132, avg=487.52, stdev=136.27 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 271], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 384], 40.00th=[ 418], 50.00th=[ 451], 60.00th=[ 485], | 70.00th=[ 514], 80.00th=[ 567], 90.00th=[ 634], 95.00th=[ 709], | 99.00th=[ 869], 99.50th=[ 894], 99.90th=[ 961], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 119, per=24.71%, avg=43.48, stdev=21.97, samples=222 iops : min= 1, max= 29, avg=10.44, stdev= 5.51, samples=222 write: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5256KiB/113480msec); 0 zone resets slat (usec): min=57, max=61899, avg=745.19, stdev=3286.15 clat (msec): min=160, max=1683, avg=915.39, stdev=249.73 lat (msec): min=160, max=1683, avg=916.14, stdev=249.60 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 531], 10.00th=[ 609], 20.00th=[ 709], | 30.00th=[ 776], 40.00th=[ 844], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1036], 80.00th=[ 1116], 90.00th=[ 1234], 95.00th=[ 1351], | 99.00th=[ 1552], 99.50th=[ 1636], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 96, per=24.88%, avg=45.77, stdev=18.67, samples=221 iops : min= 1, max= 24, avg=11.00, stdev= 4.74, samples=221 lat (msec) : 20=0.04%, 100=0.20%, 250=1.29%, 500=32.27%, 750=26.88% lat (msec) : 1000=21.13%, 2000=18.20% cpu : usr=0.10%, sys=0.79%, ctx=4494, 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=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=144465: Sun Aug 9 18:27:50 2026 read: IOPS=11, BW=44.0KiB/s (46.1kB/s)(5060KiB/112509msec) slat (msec): min=3, max=265, avg=24.73, stdev=22.65 clat (msec): min=15, max=1029, avg=464.80, stdev=140.54 lat (msec): min=33, max=1044, avg=489.54, stdev=140.28 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 279], 10.00th=[ 313], 20.00th=[ 347], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 451], 60.00th=[ 485], | 70.00th=[ 518], 80.00th=[ 567], 90.00th=[ 642], 95.00th=[ 718], | 99.00th=[ 894], 99.50th=[ 927], 99.90th=[ 978], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 118, per=25.68%, avg=45.20, stdev=20.33, samples=216 iops : min= 1, max= 29, avg=10.88, stdev= 5.13, samples=216 write: IOPS=11, BW=46.0KiB/s (47.1kB/s)(5180KiB/112509msec); 0 zone resets slat (usec): min=57, max=53714, avg=618.22, stdev=2293.56 clat (msec): min=337, max=1714, avg=908.64, stdev=241.69 lat (msec): min=337, max=1714, avg=909.27, stdev=241.67 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 531], 10.00th=[ 609], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1036], 80.00th=[ 1116], 90.00th=[ 1234], 95.00th=[ 1318], | 99.00th=[ 1536], 99.50th=[ 1569], 99.90th=[ 1653], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 6, max= 120, per=24.97%, avg=45.94, stdev=19.28, samples=218 iops : min= 1, max= 30, avg=11.04, stdev= 4.86, samples=218 lat (msec) : 20=0.04%, 50=0.12%, 100=0.16%, 250=0.94%, 500=32.42% lat (msec) : 750=27.70%, 1000=21.02%, 2000=17.62% cpu : usr=0.10%, sys=0.85%, ctx=4468, 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=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=177KiB/s (181kB/s), 43.9KiB/s-44.0KiB/s (44.0kB/s-46.1kB/s), io=19.6MiB (20.5MB), run=112351-113480msec WRITE: bw=184KiB/s (189kB/s), 45.8KiB/s-46.9KiB/s (46.9kB/s-47.0kB/s), io=20.4MiB (21.4MB), run=112351-113480msec 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=144487: Sun Aug 9 18:28:00 2026 read: IOPS=1, BW=52.2MiB/s (54.8MB/s)(40.0MiB/766msec) slat (nsec): min=24689k, max=24689k, avg=24689202.00, stdev= 0.00 clat (nsec): min=709631k, max=709631k, avg=709630853.00, stdev= 0.00 lat (nsec): min=734325k, max=734325k, avg=734325007.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.70%, ctx=10, majf=0, minf=8 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=52.2MiB/s (54.8MB/s), 52.2MiB/s-52.2MiB/s (54.8MB/s-54.8MB/s), io=40.0MiB (41.9MB), run=766-766msec 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