== sanity test 398c: run fio to test AIO ================= 15:59:43 (1789070383) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.515872 s, 81.3 MB/s osc.lustre-OST0000-osc-ffff8ca243476800.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=145003: Thu Sep 10 16:02:54 2026 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(10.0MiB/180224msec); 0 zone resets slat (usec): min=23, max=19183, avg=290.78, stdev=1088.16 clat (msec): min=170, max=2665, avg=1125.40, stdev=328.26 lat (msec): min=170, max=2665, avg=1125.70, stdev=328.28 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 600], 10.00th=[ 768], 20.00th=[ 902], | 30.00th=[ 969], 40.00th=[ 1028], 50.00th=[ 1083], 60.00th=[ 1183], | 70.00th=[ 1267], 80.00th=[ 1368], 90.00th=[ 1536], 95.00th=[ 1687], | 99.00th=[ 2022], 99.50th=[ 2333], 99.90th=[ 2534], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 230, per=25.60%, avg=57.85, stdev=33.30, samples=347 iops : min= 1, max= 57, avg=13.95, stdev= 8.34, samples=347 lat (msec) : 250=0.62%, 500=3.12%, 750=5.16%, 1000=25.39%, 2000=64.69% lat (msec) : >=2000=1.02% cpu : usr=0.06%, sys=0.24%, ctx=1752, majf=0, minf=8 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=145004: Thu Sep 10 16:02:54 2026 write: IOPS=14, BW=56.7KiB/s (58.1kB/s)(10.0MiB/180500msec); 0 zone resets slat (usec): min=31, max=19675, avg=326.14, stdev=1220.65 clat (msec): min=276, max=2657, avg=1126.75, stdev=317.11 lat (msec): min=276, max=2657, avg=1127.08, stdev=317.12 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 659], 10.00th=[ 768], 20.00th=[ 894], | 30.00th=[ 969], 40.00th=[ 1036], 50.00th=[ 1099], 60.00th=[ 1167], | 70.00th=[ 1267], 80.00th=[ 1385], 90.00th=[ 1536], 95.00th=[ 1636], | 99.00th=[ 1972], 99.50th=[ 2056], 99.90th=[ 2534], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 254, per=25.17%, avg=56.90, stdev=28.34, samples=353 iops : min= 1, max= 63, avg=13.70, stdev= 7.10, samples=353 lat (msec) : 500=3.28%, 750=4.92%, 1000=24.92%, 2000=66.13%, >=2000=0.74% cpu : usr=0.05%, sys=0.24%, ctx=1605, 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=145005: Thu Sep 10 16:02:54 2026 write: IOPS=14, BW=56.0KiB/s (58.3kB/s)(10.0MiB/179760msec); 0 zone resets slat (usec): min=29, max=27018, avg=318.58, stdev=1157.01 clat (msec): min=52, max=2658, avg=1122.05, stdev=326.97 lat (msec): min=52, max=2658, avg=1122.37, stdev=326.98 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 600], 10.00th=[ 776], 20.00th=[ 885], | 30.00th=[ 969], 40.00th=[ 1028], 50.00th=[ 1099], 60.00th=[ 1167], | 70.00th=[ 1267], 80.00th=[ 1385], 90.00th=[ 1502], 95.00th=[ 1670], | 99.00th=[ 1972], 99.50th=[ 2366], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 191, per=25.17%, avg=56.89, stdev=26.06, samples=353 iops : min= 1, max= 47, avg=13.70, stdev= 6.52, samples=353 lat (msec) : 100=0.04%, 250=0.31%, 500=3.12%, 750=4.69%, 1000=26.37% lat (msec) : 2000=64.53%, >=2000=0.94% cpu : usr=0.05%, sys=0.24%, ctx=1689, 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=145006: Thu Sep 10 16:02:54 2026 write: IOPS=14, BW=56.8KiB/s (58.1kB/s)(10.0MiB/180365msec); 0 zone resets slat (usec): min=30, max=15705, avg=281.11, stdev=971.22 clat (msec): min=177, max=2555, avg=1125.75, stdev=322.92 lat (msec): min=177, max=2555, avg=1126.04, stdev=322.95 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 651], 10.00th=[ 776], 20.00th=[ 885], | 30.00th=[ 969], 40.00th=[ 1028], 50.00th=[ 1116], 60.00th=[ 1183], | 70.00th=[ 1267], 80.00th=[ 1385], 90.00th=[ 1519], 95.00th=[ 1653], | 99.00th=[ 1972], 99.50th=[ 2299], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 247, per=25.77%, avg=58.23, stdev=28.60, samples=345 iops : min= 1, max= 61, avg=14.03, stdev= 7.17, samples=345 lat (msec) : 250=0.04%, 500=3.16%, 750=5.23%, 1000=26.91%, 2000=63.75% lat (msec) : >=2000=0.90% cpu : usr=0.05%, sys=0.22%, ctx=1733, 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 Run status group 0 (all jobs): WRITE: bw=227KiB/s (232kB/s), 56.7KiB/s-56.0KiB/s (58.1kB/s-58.3kB/s), io=40.0MiB (41.9MB), run=179760-180500msec 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=145053: Thu Sep 10 16:05:10 2026 read: IOPS=9, BW=39.3KiB/s (40.3kB/s)(5048KiB/128387msec) slat (usec): min=3173, max=78364, avg=17289.95, stdev=9975.25 clat (msec): min=26, max=1343, avg=501.93, stdev=158.19 lat (msec): min=42, max=1353, avg=519.23, stdev=159.64 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 288], 10.00th=[ 326], 20.00th=[ 380], | 30.00th=[ 414], 40.00th=[ 447], 50.00th=[ 485], 60.00th=[ 518], | 70.00th=[ 558], 80.00th=[ 617], 90.00th=[ 709], 95.00th=[ 793], | 99.00th=[ 953], 99.50th=[ 1011], 99.90th=[ 1167], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 112, per=25.06%, avg=39.09, stdev=20.52, samples=252 iops : min= 1, max= 28, avg= 9.21, stdev= 5.15, samples=252 write: IOPS=10, BW=40.4KiB/s (41.4kB/s)(5192KiB/128387msec); 0 zone resets slat (usec): min=31, max=27651, avg=349.28, stdev=1208.90 clat (msec): min=309, max=2157, avg=1073.29, stdev=342.16 lat (msec): min=310, max=2159, avg=1073.65, stdev=342.19 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 600], 10.00th=[ 667], 20.00th=[ 768], | 30.00th=[ 869], 40.00th=[ 953], 50.00th=[ 1028], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1368], 90.00th=[ 1552], 95.00th=[ 1720], | 99.00th=[ 2072], 99.50th=[ 2123], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 104, per=24.88%, avg=40.30, stdev=19.90, samples=251 iops : min= 1, max= 26, avg= 9.51, stdev= 5.01, samples=251 lat (msec) : 50=0.16%, 100=0.27%, 250=0.51%, 500=26.25%, 750=27.81% lat (msec) : 1000=17.07%, 2000=27.23%, >=2000=0.70% cpu : usr=0.10%, sys=0.63%, ctx=4197, 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=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=145054: Thu Sep 10 16:05:10 2026 read: IOPS=9, BW=38.7KiB/s (39.6kB/s)(4976KiB/128547msec) slat (usec): min=3378, max=82655, avg=17257.61, stdev=10477.42 clat (msec): min=56, max=1005, avg=497.26, stdev=147.09 lat (msec): min=73, max=1028, avg=514.52, stdev=149.21 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 292], 10.00th=[ 330], 20.00th=[ 380], | 30.00th=[ 418], 40.00th=[ 451], 50.00th=[ 481], 60.00th=[ 514], | 70.00th=[ 558], 80.00th=[ 609], 90.00th=[ 684], 95.00th=[ 768], | 99.00th=[ 927], 99.50th=[ 953], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 96, per=24.79%, avg=38.67, stdev=20.66, samples=250 iops : min= 1, max= 24, avg= 9.11, stdev= 5.18, samples=250 write: IOPS=10, BW=40.9KiB/s (41.9kB/s)(5264KiB/128547msec); 0 zone resets slat (usec): min=31, max=15474, avg=331.19, stdev=878.85 clat (msec): min=166, max=2324, avg=1073.26, stdev=347.96 lat (msec): min=166, max=2324, avg=1073.59, stdev=347.95 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 760], | 30.00th=[ 869], 40.00th=[ 953], 50.00th=[ 1045], 60.00th=[ 1133], | 70.00th=[ 1217], 80.00th=[ 1368], 90.00th=[ 1536], 95.00th=[ 1720], | 99.00th=[ 2022], 99.50th=[ 2089], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 111, per=25.12%, avg=40.69, stdev=19.63, samples=252 iops : min= 1, max= 27, avg= 9.61, stdev= 4.93, samples=252 lat (msec) : 100=0.20%, 250=0.90%, 500=27.07%, 750=27.30%, 1000=16.41% lat (msec) : 2000=27.50%, >=2000=0.62% cpu : usr=0.10%, sys=0.60%, ctx=3820, 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=145055: Thu Sep 10 16:05:10 2026 read: IOPS=9, BW=38.8KiB/s (39.7kB/s)(4984KiB/128450msec) slat (usec): min=3686, max=82507, avg=17306.55, stdev=10065.51 clat (msec): min=25, max=1259, avg=501.48, stdev=151.69 lat (msec): min=32, max=1277, avg=518.79, stdev=153.72 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 296], 10.00th=[ 338], 20.00th=[ 384], | 30.00th=[ 414], 40.00th=[ 447], 50.00th=[ 481], 60.00th=[ 514], | 70.00th=[ 550], 80.00th=[ 617], 90.00th=[ 693], 95.00th=[ 768], | 99.00th=[ 978], 99.50th=[ 1036], 99.90th=[ 1217], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 120, per=24.89%, avg=38.82, stdev=21.08, samples=251 iops : min= 1, max= 30, avg= 9.15, stdev= 5.30, samples=251 write: IOPS=10, BW=40.9KiB/s (41.9kB/s)(5256KiB/128450msec); 0 zone resets slat (usec): min=33, max=15304, avg=346.20, stdev=1112.87 clat (msec): min=283, max=2209, avg=1067.87, stdev=339.90 lat (msec): min=283, max=2209, avg=1068.23, stdev=339.91 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 592], 10.00th=[ 659], 20.00th=[ 776], | 30.00th=[ 877], 40.00th=[ 953], 50.00th=[ 1020], 60.00th=[ 1099], | 70.00th=[ 1217], 80.00th=[ 1351], 90.00th=[ 1519], 95.00th=[ 1703], | 99.00th=[ 2072], 99.50th=[ 2140], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 111, per=24.93%, avg=40.39, stdev=19.98, samples=253 iops : min= 1, max= 27, avg= 9.53, stdev= 5.03, samples=253 lat (msec) : 50=0.04%, 100=0.04%, 250=0.78%, 500=26.95%, 750=27.50% lat (msec) : 1000=17.15%, 2000=26.84%, >=2000=0.70% cpu : usr=0.12%, sys=0.59%, ctx=4028, 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=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=145056: Thu Sep 10 16:05:10 2026 read: IOPS=9, BW=39.9KiB/s (40.8kB/s)(5060KiB/126887msec) slat (usec): min=47, max=94293, avg=17278.41, stdev=10525.12 clat (msec): min=9, max=1276, avg=503.00, stdev=162.39 lat (msec): min=10, max=1295, avg=520.28, stdev=163.93 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 288], 10.00th=[ 321], 20.00th=[ 376], | 30.00th=[ 414], 40.00th=[ 443], 50.00th=[ 485], 60.00th=[ 518], | 70.00th=[ 558], 80.00th=[ 625], 90.00th=[ 709], 95.00th=[ 793], | 99.00th=[ 978], 99.50th=[ 1003], 99.90th=[ 1250], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 111, per=25.92%, avg=40.44, stdev=20.10, samples=244 iops : min= 1, max= 27, avg= 9.55, stdev= 5.07, samples=244 write: IOPS=10, BW=40.8KiB/s (41.8kB/s)(5180KiB/126887msec); 0 zone resets slat (usec): min=33, max=28764, avg=398.81, stdev=1469.21 clat (msec): min=137, max=2110, avg=1058.04, stdev=338.67 lat (msec): min=138, max=2110, avg=1058.44, stdev=338.65 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 567], 10.00th=[ 651], 20.00th=[ 760], | 30.00th=[ 869], 40.00th=[ 953], 50.00th=[ 1020], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1351], 90.00th=[ 1519], 95.00th=[ 1670], | 99.00th=[ 1972], 99.50th=[ 2022], 99.90th=[ 2072], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 7, max= 97, per=24.83%, avg=40.22, stdev=19.17, samples=251 iops : min= 1, max= 24, avg= 9.49, stdev= 4.81, samples=251 lat (msec) : 10=0.04%, 20=0.04%, 50=0.20%, 100=0.23%, 250=0.82% lat (msec) : 500=26.99%, 750=27.15%, 1000=17.58%, 2000=26.56%, >=2000=0.39% cpu : usr=0.10%, sys=0.69%, ctx=4340, 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=156KiB/s (160kB/s), 38.7KiB/s-39.9KiB/s (39.6kB/s-40.8kB/s), io=19.6MiB (20.5MB), run=126887-128547msec WRITE: bw=163KiB/s (166kB/s), 40.4KiB/s-40.9KiB/s (41.4kB/s-41.9kB/s), io=20.4MiB (21.4MB), run=126887-128547msec 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=145080: Thu Sep 10 16:05:21 2026 read: IOPS=1, BW=75.5MiB/s (79.1MB/s)(40.0MiB/530msec) slat (nsec): min=80234k, max=80234k, avg=80233641.00, stdev= 0.00 clat (nsec): min=425266k, max=425266k, avg=425265574.00, stdev= 0.00 lat (nsec): min=505505k, max=505505k, avg=505504513.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.40%, ctx=44, majf=0, minf=10 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=75.5MiB/s (79.1MB/s), 75.5MiB/s-75.5MiB/s (79.1MB/s-79.1MB/s), io=40.0MiB (41.9MB), run=530-530msec 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