== sanity test 398c: run fio to test AIO ================= 02:15:14 (1789020914) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.534189 s, 78.5 MB/s osc.lustre-OST0000-osc-ffff962e852b7000.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=145258: Thu Sep 10 02:17:58 2026 write: IOPS=16, BW=66.3KiB/s (67.9kB/s)(10.0MiB/154504msec); 0 zone resets slat (usec): min=22, max=22692, avg=162.77, stdev=738.53 clat (msec): min=183, max=2321, avg=964.59, stdev=323.00 lat (msec): min=183, max=2321, avg=964.76, stdev=322.99 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 514], 10.00th=[ 625], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 902], 60.00th=[ 995], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1385], 95.00th=[ 1569], | 99.00th=[ 1871], 99.50th=[ 2072], 99.90th=[ 2165], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 255, per=25.28%, avg=66.75, stdev=34.84, samples=302 iops : min= 1, max= 63, avg=16.25, stdev= 8.73, samples=302 lat (msec) : 250=0.62%, 500=4.14%, 750=18.87%, 1000=37.23%, 2000=38.44% lat (msec) : >=2000=0.70% cpu : usr=0.04%, sys=0.18%, ctx=1471, 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=145259: Thu Sep 10 02:17:58 2026 write: IOPS=16, BW=66.2KiB/s (67.8kB/s)(10.0MiB/154670msec); 0 zone resets slat (usec): min=21, max=31913, avg=200.84, stdev=1019.93 clat (msec): min=269, max=2306, avg=965.41, stdev=323.47 lat (msec): min=269, max=2306, avg=965.61, stdev=323.47 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 550], 10.00th=[ 634], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 835], 50.00th=[ 911], 60.00th=[ 986], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1385], 95.00th=[ 1586], | 99.00th=[ 1888], 99.50th=[ 2089], 99.90th=[ 2265], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 254, per=24.95%, avg=65.88, stdev=33.10, samples=306 iops : min= 1, max= 63, avg=16.03, stdev= 8.28, samples=306 lat (msec) : 500=4.45%, 750=21.37%, 1000=35.16%, 2000=38.44%, >=2000=0.59% cpu : usr=0.04%, sys=0.20%, ctx=1442, 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=145260: Thu Sep 10 02:17:58 2026 write: IOPS=16, BW=66.4KiB/s (67.0kB/s)(10.0MiB/154290msec); 0 zone resets slat (usec): min=22, max=15645, avg=154.43, stdev=626.38 clat (msec): min=189, max=2275, avg=963.11, stdev=325.29 lat (msec): min=189, max=2275, avg=963.27, stdev=325.29 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 498], 10.00th=[ 625], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 919], 60.00th=[ 1003], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1385], 95.00th=[ 1552], | 99.00th=[ 1888], 99.50th=[ 1938], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 8, max= 255, per=25.63%, avg=67.66, stdev=35.52, samples=298 iops : min= 2, max= 63, avg=16.48, stdev= 8.89, samples=298 lat (msec) : 250=0.62%, 500=4.38%, 750=19.49%, 1000=35.66%, 2000=39.41% lat (msec) : >=2000=0.43% cpu : usr=0.05%, sys=0.19%, ctx=1712, 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=145261: Thu Sep 10 02:17:58 2026 write: IOPS=16, BW=66.5KiB/s (68.1kB/s)(10.0MiB/154033msec); 0 zone resets slat (usec): min=22, max=19430, avg=171.95, stdev=759.88 clat (msec): min=103, max=2286, avg=961.86, stdev=329.18 lat (msec): min=103, max=2286, avg=962.03, stdev=329.16 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 510], 10.00th=[ 625], 20.00th=[ 709], | 30.00th=[ 776], 40.00th=[ 835], 50.00th=[ 902], 60.00th=[ 1003], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1385], 95.00th=[ 1586], | 99.00th=[ 1955], 99.50th=[ 2123], 99.90th=[ 2265], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 231, per=25.19%, avg=66.50, stdev=35.47, samples=303 iops : min= 1, max= 57, avg=16.19, stdev= 8.87, samples=303 lat (msec) : 250=0.43%, 500=4.30%, 750=21.56%, 1000=33.71%, 2000=39.18% lat (msec) : >=2000=0.82% cpu : usr=0.04%, sys=0.20%, ctx=1928, 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 Run status group 0 (all jobs): WRITE: bw=265KiB/s (271kB/s), 66.2KiB/s-66.5KiB/s (67.8kB/s-68.1kB/s), io=40.0MiB (41.9MB), run=154033-154670msec 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=145294: Thu Sep 10 02:20:06 2026 read: IOPS=10, BW=42.9KiB/s (43.0kB/s)(5048KiB/117541msec) slat (usec): min=2960, max=71050, avg=14824.73, stdev=9477.18 clat (msec): min=32, max=1256, avg=454.70, stdev=163.79 lat (msec): min=43, max=1282, avg=469.53, stdev=166.51 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 253], 10.00th=[ 279], 20.00th=[ 321], | 30.00th=[ 355], 40.00th=[ 388], 50.00th=[ 426], 60.00th=[ 464], | 70.00th=[ 514], 80.00th=[ 575], 90.00th=[ 676], 95.00th=[ 768], | 99.00th=[ 961], 99.50th=[ 995], 99.90th=[ 1116], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 135, per=25.14%, avg=42.73, stdev=22.84, samples=231 iops : min= 1, max= 33, avg=10.20, stdev= 5.75, samples=231 write: IOPS=11, BW=44.2KiB/s (45.2kB/s)(5192KiB/117541msec); 0 zone resets slat (usec): min=27, max=32822, avg=238.58, stdev=1235.92 clat (msec): min=233, max=2080, avg=987.90, stdev=353.10 lat (msec): min=233, max=2080, avg=988.14, stdev=353.12 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 498], 10.00th=[ 584], 20.00th=[ 693], | 30.00th=[ 776], 40.00th=[ 852], 50.00th=[ 936], 60.00th=[ 1003], | 70.00th=[ 1099], 80.00th=[ 1267], 90.00th=[ 1519], 95.00th=[ 1720], | 99.00th=[ 1905], 99.50th=[ 1955], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 127, per=24.98%, avg=44.21, stdev=23.48, samples=230 iops : min= 1, max= 31, avg=10.57, stdev= 5.90, samples=230 lat (msec) : 50=0.08%, 100=0.08%, 250=2.23%, 500=33.59%, 750=23.87% lat (msec) : 1000=19.26%, 2000=20.74%, >=2000=0.16% cpu : usr=0.10%, sys=0.56%, ctx=4636, 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=145295: Thu Sep 10 02:20:06 2026 read: IOPS=10, BW=42.5KiB/s (43.5kB/s)(4976KiB/117125msec) slat (usec): min=29, max=67398, avg=14962.74, stdev=9331.18 clat (msec): min=30, max=1264, avg=447.66, stdev=163.58 lat (msec): min=43, max=1300, avg=462.63, stdev=166.18 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 247], 10.00th=[ 275], 20.00th=[ 317], | 30.00th=[ 351], 40.00th=[ 384], 50.00th=[ 414], 60.00th=[ 456], | 70.00th=[ 510], 80.00th=[ 575], 90.00th=[ 667], 95.00th=[ 760], | 99.00th=[ 927], 99.50th=[ 995], 99.90th=[ 1250], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 112, per=25.19%, avg=42.82, stdev=22.94, samples=227 iops : min= 1, max= 28, avg=10.22, stdev= 5.76, samples=227 write: IOPS=11, BW=44.9KiB/s (46.0kB/s)(5264KiB/117125msec); 0 zone resets slat (usec): min=24, max=10957, avg=243.84, stdev=800.44 clat (msec): min=303, max=2075, avg=985.46, stdev=348.32 lat (msec): min=304, max=2075, avg=985.71, stdev=348.35 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 514], 10.00th=[ 584], 20.00th=[ 684], | 30.00th=[ 776], 40.00th=[ 860], 50.00th=[ 936], 60.00th=[ 1003], | 70.00th=[ 1116], 80.00th=[ 1250], 90.00th=[ 1485], 95.00th=[ 1720], | 99.00th=[ 1938], 99.50th=[ 2039], 99.90th=[ 2056], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 103, per=25.44%, avg=45.03, stdev=22.10, samples=229 iops : min= 1, max= 25, avg=10.77, stdev= 5.57, samples=229 lat (msec) : 50=0.12%, 100=0.16%, 250=2.50%, 500=32.70%, 750=24.34% lat (msec) : 1000=19.06%, 2000=20.70%, >=2000=0.43% cpu : usr=0.08%, sys=0.55%, ctx=4606, 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=145296: Thu Sep 10 02:20:06 2026 read: IOPS=10, BW=42.4KiB/s (43.4kB/s)(4984KiB/117508msec) slat (usec): min=2379, max=71878, avg=14871.79, stdev=9758.05 clat (msec): min=24, max=1255, avg=455.11, stdev=172.67 lat (msec): min=42, max=1281, avg=469.99, stdev=175.31 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 241], 10.00th=[ 271], 20.00th=[ 313], | 30.00th=[ 351], 40.00th=[ 380], 50.00th=[ 418], 60.00th=[ 468], | 70.00th=[ 527], 80.00th=[ 592], 90.00th=[ 684], 95.00th=[ 785], | 99.00th=[ 995], 99.50th=[ 1028], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 143, per=25.17%, avg=42.78, stdev=22.99, samples=228 iops : min= 1, max= 35, avg=10.22, stdev= 5.75, samples=228 write: IOPS=11, BW=44.7KiB/s (45.8kB/s)(5256KiB/117508msec); 0 zone resets slat (usec): min=25, max=48458, avg=287.82, stdev=1780.16 clat (msec): min=173, max=2097, avg=980.82, stdev=349.18 lat (msec): min=174, max=2097, avg=981.11, stdev=349.29 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 498], 10.00th=[ 584], 20.00th=[ 693], | 30.00th=[ 776], 40.00th=[ 860], 50.00th=[ 936], 60.00th=[ 1003], | 70.00th=[ 1083], 80.00th=[ 1250], 90.00th=[ 1485], 95.00th=[ 1687], | 99.00th=[ 1905], 99.50th=[ 2022], 99.90th=[ 2056], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 7, max= 128, per=25.24%, avg=44.67, stdev=22.76, samples=229 iops : min= 1, max= 32, avg=10.69, stdev= 5.70, samples=229 lat (msec) : 50=0.27%, 100=0.04%, 250=2.89%, 500=31.60%, 750=24.84% lat (msec) : 1000=18.63%, 2000=21.33%, >=2000=0.39% cpu : usr=0.11%, sys=0.58%, ctx=4838, 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=145297: Thu Sep 10 02:20:06 2026 read: IOPS=10, BW=43.4KiB/s (44.4kB/s)(5060KiB/116581msec) slat (usec): min=2452, max=82578, avg=15025.21, stdev=9390.47 clat (msec): min=18, max=1270, avg=453.81, stdev=165.22 lat (msec): min=32, max=1277, avg=468.84, stdev=167.63 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 249], 10.00th=[ 279], 20.00th=[ 317], | 30.00th=[ 355], 40.00th=[ 388], 50.00th=[ 422], 60.00th=[ 460], | 70.00th=[ 514], 80.00th=[ 584], 90.00th=[ 676], 95.00th=[ 768], | 99.00th=[ 978], 99.50th=[ 1020], 99.90th=[ 1133], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 127, per=25.83%, avg=43.91, stdev=20.79, samples=226 iops : min= 1, max= 31, avg=10.50, stdev= 5.20, samples=226 write: IOPS=11, BW=44.4KiB/s (45.5kB/s)(5180KiB/116581msec); 0 zone resets slat (usec): min=29, max=21026, avg=244.26, stdev=1016.41 clat (msec): min=310, max=2166, avg=977.93, stdev=338.87 lat (msec): min=310, max=2166, avg=978.17, stdev=338.85 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 506], 10.00th=[ 575], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 852], 50.00th=[ 927], 60.00th=[ 1003], | 70.00th=[ 1099], 80.00th=[ 1267], 90.00th=[ 1469], 95.00th=[ 1653], | 99.00th=[ 1871], 99.50th=[ 1921], 99.90th=[ 2039], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 176, per=25.10%, avg=44.42, stdev=22.45, samples=227 iops : min= 1, max= 44, avg=10.63, stdev= 5.64, samples=227 lat (msec) : 20=0.04%, 50=0.04%, 100=0.04%, 250=2.70%, 500=32.89% lat (msec) : 750=24.77%, 1000=18.52%, 2000=20.94%, >=2000=0.08% cpu : usr=0.08%, sys=0.55%, ctx=4945, 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=171KiB/s (175kB/s), 42.4KiB/s-43.4KiB/s (43.4kB/s-44.4kB/s), io=19.6MiB (20.5MB), run=116581-117541msec WRITE: bw=178KiB/s (182kB/s), 44.2KiB/s-44.9KiB/s (45.2kB/s-46.0kB/s), io=20.4MiB (21.4MB), run=116581-117541msec 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=145318: Thu Sep 10 02:20:19 2026 read: IOPS=0, BW=30.7MiB/s (32.2MB/s)(40.0MiB/1301msec) slat (nsec): min=57643k, max=57643k, avg=57643179.00, stdev= 0.00 clat (nsec): min=1195.4M, max=1195.4M, avg=1195364879.00, stdev= 0.00 lat (nsec): min=1253.0M, max=1253.0M, avg=1253012664.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1200], 5.00th=[ 1200], 10.00th=[ 1200], 20.00th=[ 1200], | 30.00th=[ 1200], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=1.00%, ctx=5, 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=30.7MiB/s (32.2MB/s), 30.7MiB/s-30.7MiB/s (32.2MB/s-32.2MB/s), io=40.0MiB (41.9MB), run=1301-1301msec 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