== sanity test 398c: run fio to test AIO ================= 15:04:15 (1780340655) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.663157 s, 63.2 MB/s osc.lustre-OST0000-osc-ffff9ab9e541e800.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=146681: Mon Jun 1 15:07:16 2026 write: IOPS=15, BW=60.2KiB/s (61.6kB/s)(10.0MiB/170089msec); 0 zone resets slat (usec): min=38, max=16318, avg=306.43, stdev=899.91 clat (msec): min=129, max=2249, avg=1061.62, stdev=285.01 lat (msec): min=129, max=2250, avg=1061.93, stdev=285.04 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 609], 10.00th=[ 743], 20.00th=[ 844], | 30.00th=[ 919], 40.00th=[ 986], 50.00th=[ 1053], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1267], 90.00th=[ 1418], 95.00th=[ 1536], | 99.00th=[ 1754], 99.50th=[ 1888], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 215, per=25.30%, avg=60.73, stdev=31.54, samples=331 iops : min= 1, max= 53, avg=14.72, stdev= 7.90, samples=331 lat (msec) : 250=0.62%, 500=2.66%, 750=7.23%, 1000=31.02%, 2000=58.09% lat (msec) : >=2000=0.39% cpu : usr=0.04%, sys=0.25%, ctx=2160, 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=146682: Mon Jun 1 15:07:16 2026 write: IOPS=15, BW=60.4KiB/s (61.9kB/s)(10.0MiB/169493msec); 0 zone resets slat (usec): min=46, max=24084, avg=286.35, stdev=897.73 clat (msec): min=74, max=2046, avg=1058.46, stdev=284.09 lat (msec): min=75, max=2053, avg=1058.75, stdev=284.03 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 617], 10.00th=[ 735], 20.00th=[ 844], | 30.00th=[ 927], 40.00th=[ 995], 50.00th=[ 1053], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1418], 95.00th=[ 1519], | 99.00th=[ 1754], 99.50th=[ 1838], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 228, per=25.86%, avg=62.06, stdev=34.22, samples=324 iops : min= 1, max= 57, avg=15.05, stdev= 8.56, samples=324 lat (msec) : 100=0.08%, 250=1.33%, 500=2.27%, 750=7.11%, 1000=29.57% lat (msec) : 2000=59.49%, >=2000=0.16% cpu : usr=0.04%, sys=0.26%, ctx=1914, 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=146683: Mon Jun 1 15:07:16 2026 write: IOPS=15, BW=60.2KiB/s (61.6kB/s)(10.0MiB/170130msec); 0 zone resets slat (usec): min=45, max=19880, avg=267.12, stdev=839.26 clat (msec): min=120, max=2022, avg=1062.02, stdev=277.73 lat (msec): min=120, max=2022, avg=1062.29, stdev=277.76 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 617], 10.00th=[ 743], 20.00th=[ 852], | 30.00th=[ 927], 40.00th=[ 995], 50.00th=[ 1053], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1401], 95.00th=[ 1502], | 99.00th=[ 1720], 99.50th=[ 1854], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 216, per=25.47%, avg=61.12, stdev=31.81, samples=329 iops : min= 1, max= 54, avg=14.81, stdev= 8.00, samples=329 lat (msec) : 250=0.62%, 500=2.54%, 750=7.23%, 1000=30.51%, 2000=59.06% lat (msec) : >=2000=0.04% cpu : usr=0.03%, sys=0.25%, ctx=1846, 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=146684: Mon Jun 1 15:07:16 2026 write: IOPS=15, BW=60.2KiB/s (61.6kB/s)(10.0MiB/170128msec); 0 zone resets slat (usec): min=42, max=13990, avg=292.27, stdev=841.57 clat (msec): min=109, max=2284, avg=1061.79, stdev=283.37 lat (msec): min=109, max=2284, avg=1062.09, stdev=283.37 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 625], 10.00th=[ 743], 20.00th=[ 844], | 30.00th=[ 911], 40.00th=[ 986], 50.00th=[ 1062], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1418], 95.00th=[ 1536], | 99.00th=[ 1737], 99.50th=[ 1854], 99.90th=[ 2022], 99.95th=[ 2198], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 217, per=25.16%, avg=60.38, stdev=29.72, samples=333 iops : min= 1, max= 54, avg=14.63, stdev= 7.44, samples=333 lat (msec) : 250=1.05%, 500=2.23%, 750=7.11%, 1000=31.17%, 2000=58.32% lat (msec) : >=2000=0.12% cpu : usr=0.04%, sys=0.25%, ctx=2171, 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=241KiB/s (247kB/s), 60.2KiB/s-60.4KiB/s (61.6kB/s-61.9kB/s), io=40.0MiB (41.9MB), run=169493-170130msec 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=146718: Mon Jun 1 15:09:37 2026 read: IOPS=9, BW=38.1KiB/s (39.0kB/s)(5048KiB/132480msec) slat (usec): min=2761, max=76381, avg=15907.74, stdev=9015.41 clat (msec): min=26, max=1269, avg=512.34, stdev=149.28 lat (msec): min=33, max=1308, avg=528.28, stdev=150.99 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 300], 10.00th=[ 342], 20.00th=[ 393], | 30.00th=[ 435], 40.00th=[ 464], 50.00th=[ 502], 60.00th=[ 527], | 70.00th=[ 567], 80.00th=[ 625], 90.00th=[ 718], 95.00th=[ 776], | 99.00th=[ 902], 99.50th=[ 1003], 99.90th=[ 1234], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 109, per=25.04%, avg=37.80, stdev=20.00, samples=261 iops : min= 1, max= 27, avg= 8.96, stdev= 5.04, samples=261 write: IOPS=9, BW=39.2KiB/s (40.1kB/s)(5192KiB/132480msec); 0 zone resets slat (usec): min=54, max=27061, avg=425.37, stdev=1618.36 clat (msec): min=343, max=2127, avg=1116.07, stdev=307.65 lat (msec): min=343, max=2127, avg=1116.50, stdev=307.76 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 659], 10.00th=[ 735], 20.00th=[ 844], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1267], 80.00th=[ 1385], 90.00th=[ 1552], 95.00th=[ 1653], | 99.00th=[ 1905], 99.50th=[ 1955], 99.90th=[ 2022], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 112, per=25.00%, avg=39.26, stdev=17.88, samples=258 iops : min= 1, max= 28, avg= 9.32, stdev= 4.49, samples=258 lat (msec) : 50=0.08%, 100=0.16%, 250=0.66%, 500=24.53%, 750=26.13% lat (msec) : 1000=16.68%, 2000=31.64%, >=2000=0.12% cpu : usr=0.08%, sys=0.56%, ctx=5114, 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=146719: Mon Jun 1 15:09:37 2026 read: IOPS=9, BW=37.6KiB/s (38.5kB/s)(4976KiB/132347msec) slat (usec): min=2726, max=72128, avg=15772.37, stdev=9100.39 clat (msec): min=11, max=1225, avg=512.03, stdev=150.64 lat (msec): min=17, max=1242, avg=527.81, stdev=152.42 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 296], 10.00th=[ 351], 20.00th=[ 401], | 30.00th=[ 435], 40.00th=[ 464], 50.00th=[ 498], 60.00th=[ 531], | 70.00th=[ 567], 80.00th=[ 625], 90.00th=[ 709], 95.00th=[ 776], | 99.00th=[ 936], 99.50th=[ 1011], 99.90th=[ 1183], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 96, per=25.27%, avg=38.15, stdev=19.65, samples=255 iops : min= 1, max= 24, avg= 9.05, stdev= 4.95, samples=255 write: IOPS=9, BW=39.8KiB/s (40.7kB/s)(5264KiB/132347msec); 0 zone resets slat (usec): min=59, max=14015, avg=369.94, stdev=1111.15 clat (msec): min=139, max=2324, avg=1107.64, stdev=317.29 lat (msec): min=139, max=2324, avg=1108.01, stdev=317.31 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 617], 10.00th=[ 726], 20.00th=[ 844], | 30.00th=[ 919], 40.00th=[ 1020], 50.00th=[ 1099], 60.00th=[ 1167], | 70.00th=[ 1267], 80.00th=[ 1385], 90.00th=[ 1519], 95.00th=[ 1636], | 99.00th=[ 1921], 99.50th=[ 2072], 99.90th=[ 2198], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 104, per=25.26%, avg=39.66, stdev=18.69, samples=259 iops : min= 1, max= 26, avg= 9.42, stdev= 4.70, samples=259 lat (msec) : 20=0.04%, 50=0.12%, 100=0.20%, 250=0.98%, 500=24.06% lat (msec) : 750=26.17%, 1000=16.64%, 2000=31.45%, >=2000=0.35% cpu : usr=0.07%, sys=0.54%, ctx=4828, 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=146720: Mon Jun 1 15:09:37 2026 read: IOPS=9, BW=37.7KiB/s (38.6kB/s)(4984KiB/132343msec) slat (usec): min=57, max=66215, avg=16173.09, stdev=9601.69 clat (msec): min=26, max=1283, avg=511.55, stdev=149.15 lat (msec): min=35, max=1321, avg=527.73, stdev=151.47 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 292], 10.00th=[ 347], 20.00th=[ 401], | 30.00th=[ 439], 40.00th=[ 464], 50.00th=[ 498], 60.00th=[ 531], | 70.00th=[ 567], 80.00th=[ 617], 90.00th=[ 709], 95.00th=[ 760], | 99.00th=[ 919], 99.50th=[ 1053], 99.90th=[ 1267], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 104, per=24.89%, avg=37.59, stdev=19.24, samples=260 iops : min= 1, max= 26, avg= 8.90, stdev= 4.83, samples=260 write: IOPS=9, BW=39.7KiB/s (40.7kB/s)(5256KiB/132343msec); 0 zone resets slat (usec): min=58, max=19274, avg=411.98, stdev=1285.30 clat (msec): min=148, max=2339, avg=1109.86, stdev=311.72 lat (msec): min=149, max=2339, avg=1110.27, stdev=311.81 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 659], 10.00th=[ 743], 20.00th=[ 844], | 30.00th=[ 927], 40.00th=[ 1020], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1267], 80.00th=[ 1368], 90.00th=[ 1519], 95.00th=[ 1653], | 99.00th=[ 1854], 99.50th=[ 2039], 99.90th=[ 2140], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 88, per=25.05%, avg=39.33, stdev=18.34, samples=260 iops : min= 1, max= 22, avg= 9.33, stdev= 4.64, samples=260 lat (msec) : 50=0.16%, 100=0.08%, 250=1.25%, 500=23.98%, 750=25.74% lat (msec) : 1000=16.60%, 2000=31.91%, >=2000=0.27% cpu : usr=0.09%, sys=0.64%, ctx=5028, 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=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=146721: Mon Jun 1 15:09:37 2026 read: IOPS=9, BW=38.2KiB/s (39.2kB/s)(5060KiB/132345msec) slat (usec): min=2758, max=65594, avg=16219.30, stdev=9251.68 clat (msec): min=14, max=1288, avg=512.74, stdev=152.75 lat (msec): min=18, max=1300, avg=528.97, stdev=154.68 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 300], 10.00th=[ 342], 20.00th=[ 397], | 30.00th=[ 435], 40.00th=[ 464], 50.00th=[ 498], 60.00th=[ 535], | 70.00th=[ 575], 80.00th=[ 625], 90.00th=[ 709], 95.00th=[ 776], | 99.00th=[ 919], 99.50th=[ 1011], 99.90th=[ 1150], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 87, per=25.35%, avg=38.28, stdev=18.64, samples=259 iops : min= 1, max= 21, avg= 9.07, stdev= 4.70, samples=259 write: IOPS=9, BW=39.1KiB/s (40.1kB/s)(5180KiB/132345msec); 0 zone resets slat (usec): min=50, max=21573, avg=381.98, stdev=1304.33 clat (msec): min=258, max=2368, avg=1115.41, stdev=302.39 lat (msec): min=259, max=2368, avg=1115.79, stdev=302.32 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 667], 10.00th=[ 743], 20.00th=[ 852], | 30.00th=[ 944], 40.00th=[ 1028], 50.00th=[ 1099], 60.00th=[ 1183], | 70.00th=[ 1250], 80.00th=[ 1351], 90.00th=[ 1485], 95.00th=[ 1636], | 99.00th=[ 1955], 99.50th=[ 2056], 99.90th=[ 2333], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 94, per=24.81%, avg=38.95, stdev=19.16, samples=259 iops : min= 1, max= 23, avg= 9.24, stdev= 4.80, samples=259 lat (msec) : 20=0.08%, 50=0.23%, 100=0.16%, 250=0.70%, 500=24.45% lat (msec) : 750=26.09%, 1000=15.51%, 2000=32.50%, >=2000=0.27% cpu : usr=0.08%, sys=0.65%, ctx=4888, 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=151KiB/s (155kB/s), 37.6KiB/s-38.2KiB/s (38.5kB/s-39.2kB/s), io=19.6MiB (20.5MB), run=132343-132480msec WRITE: bw=158KiB/s (161kB/s), 39.1KiB/s-39.8KiB/s (40.1kB/s-40.7kB/s), io=20.4MiB (21.4MB), run=132343-132480msec 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=146744: Mon Jun 1 15:09:50 2026 read: IOPS=1, BW=60.3MiB/s (63.3MB/s)(40.0MiB/663msec) slat (nsec): min=58492k, max=58492k, avg=58491657.00, stdev= 0.00 clat (nsec): min=578968k, max=578968k, avg=578968330.00, stdev= 0.00 lat (nsec): min=637466k, max=637466k, avg=637466117.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.66%, ctx=45, 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=60.3MiB/s (63.3MB/s), 60.3MiB/s-60.3MiB/s (63.3MB/s-63.3MB/s), io=40.0MiB (41.9MB), run=663-663msec 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