== sanity test 398c: run fio to test AIO ================= 10:05:15 (1789135515) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.436853 s, 96.0 MB/s osc.lustre-OST0000-osc-ffff9ae8ef6b4800.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=146788: Fri Sep 11 10:08:10 2026 write: IOPS=15, BW=61.5KiB/s (62.0kB/s)(10.0MiB/166546msec); 0 zone resets slat (usec): min=23, max=18127, avg=210.47, stdev=933.49 clat (msec): min=217, max=1975, avg=1039.67, stdev=323.16 lat (msec): min=217, max=1975, avg=1039.89, stdev=323.18 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 481], 10.00th=[ 667], 20.00th=[ 776], | 30.00th=[ 877], 40.00th=[ 953], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1485], 95.00th=[ 1620], | 99.00th=[ 1787], 99.50th=[ 1854], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 224, per=25.68%, avg=62.92, stdev=32.00, samples=320 iops : min= 1, max= 56, avg=15.26, stdev= 8.04, samples=320 lat (msec) : 250=0.66%, 500=4.84%, 750=11.17%, 1000=30.43%, 2000=52.89% cpu : usr=0.04%, sys=0.21%, ctx=1826, 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=146789: Fri Sep 11 10:08:10 2026 write: IOPS=15, BW=61.6KiB/s (63.1kB/s)(10.0MiB/166236msec); 0 zone resets slat (usec): min=22, max=26883, avg=202.67, stdev=975.51 clat (msec): min=195, max=2320, avg=1037.92, stdev=325.85 lat (msec): min=196, max=2320, avg=1038.12, stdev=325.90 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 506], 10.00th=[ 659], 20.00th=[ 785], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1469], 95.00th=[ 1603], | 99.00th=[ 1888], 99.50th=[ 1972], 99.90th=[ 2022], 99.95th=[ 2056], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 256, per=25.44%, avg=62.33, stdev=33.51, samples=323 iops : min= 1, max= 64, avg=15.12, stdev= 8.41, samples=323 lat (msec) : 250=1.17%, 500=3.59%, 750=11.45%, 1000=30.35%, 2000=53.32% lat (msec) : >=2000=0.12% cpu : usr=0.05%, sys=0.21%, ctx=1595, 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=146790: Fri Sep 11 10:08:10 2026 write: IOPS=15, BW=61.8KiB/s (63.3kB/s)(10.0MiB/165709msec); 0 zone resets slat (usec): min=23, max=19581, avg=202.30, stdev=949.47 clat (msec): min=103, max=2384, avg=1035.04, stdev=328.62 lat (msec): min=103, max=2384, avg=1035.24, stdev=328.67 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 464], 10.00th=[ 642], 20.00th=[ 776], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1318], 90.00th=[ 1469], 95.00th=[ 1603], | 99.00th=[ 1821], 99.50th=[ 1888], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 254, per=25.76%, avg=63.10, stdev=32.48, samples=319 iops : min= 1, max= 63, avg=15.30, stdev= 8.15, samples=319 lat (msec) : 250=1.05%, 500=5.27%, 750=9.92%, 1000=30.31%, 2000=53.28% lat (msec) : >=2000=0.16% cpu : usr=0.04%, sys=0.21%, ctx=1695, 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=146791: Fri Sep 11 10:08:10 2026 write: IOPS=15, BW=61.5KiB/s (62.0kB/s)(10.0MiB/166551msec); 0 zone resets slat (usec): min=26, max=21948, avg=243.17, stdev=1115.39 clat (msec): min=188, max=2053, avg=1039.71, stdev=323.80 lat (msec): min=188, max=2053, avg=1039.96, stdev=323.81 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 510], 10.00th=[ 651], 20.00th=[ 776], | 30.00th=[ 869], 40.00th=[ 953], 50.00th=[ 1028], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1452], 95.00th=[ 1620], | 99.00th=[ 1854], 99.50th=[ 1921], 99.90th=[ 2005], 99.95th=[ 2005], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 208, per=24.90%, avg=61.01, stdev=29.13, samples=330 iops : min= 1, max= 52, avg=14.78, stdev= 7.32, samples=330 lat (msec) : 250=0.94%, 500=3.75%, 750=12.77%, 1000=28.16%, 2000=54.26% lat (msec) : >=2000=0.12% cpu : usr=0.05%, sys=0.22%, ctx=1946, 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=246KiB/s (252kB/s), 61.5KiB/s-61.8KiB/s (62.0kB/s-63.3kB/s), io=40.0MiB (41.9MB), run=165709-166551msec 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=146825: Fri Sep 11 10:10:13 2026 read: IOPS=10, BW=43.4KiB/s (44.4kB/s)(5048KiB/116360msec) slat (usec): min=29, max=65817, avg=14622.39, stdev=8870.57 clat (msec): min=33, max=1311, avg=455.53, stdev=158.55 lat (msec): min=37, max=1324, avg=470.16, stdev=160.51 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 262], 10.00th=[ 296], 20.00th=[ 338], | 30.00th=[ 368], 40.00th=[ 401], 50.00th=[ 426], 60.00th=[ 468], | 70.00th=[ 514], 80.00th=[ 558], 90.00th=[ 651], 95.00th=[ 751], | 99.00th=[ 927], 99.50th=[ 1045], 99.90th=[ 1217], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 109, per=25.53%, avg=43.65, stdev=20.94, samples=226 iops : min= 1, max= 27, avg=10.41, stdev= 5.25, samples=226 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(5192KiB/116360msec); 0 zone resets slat (usec): min=33, max=11761, avg=210.32, stdev=628.98 clat (msec): min=209, max=1934, avg=975.94, stdev=308.74 lat (msec): min=210, max=1934, avg=976.15, stdev=308.76 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 718], | 30.00th=[ 785], 40.00th=[ 852], 50.00th=[ 927], 60.00th=[ 1003], | 70.00th=[ 1116], 80.00th=[ 1284], 90.00th=[ 1401], 95.00th=[ 1536], | 99.00th=[ 1754], 99.50th=[ 1838], 99.90th=[ 1921], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 111, per=25.00%, avg=44.50, stdev=20.53, samples=228 iops : min= 1, max= 27, avg=10.62, stdev= 5.11, samples=228 lat (msec) : 50=0.47%, 100=0.16%, 250=1.56%, 500=32.23%, 750=24.88% lat (msec) : 1000=20.08%, 2000=20.62% cpu : usr=0.09%, sys=0.53%, ctx=3911, 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=146826: Fri Sep 11 10:10:13 2026 read: IOPS=10, BW=42.4KiB/s (43.5kB/s)(4976KiB/117243msec) slat (usec): min=2554, max=63979, avg=14869.09, stdev=8899.56 clat (msec): min=23, max=965, avg=456.18, stdev=143.32 lat (msec): min=41, max=990, avg=471.06, stdev=145.58 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 271], 10.00th=[ 300], 20.00th=[ 338], | 30.00th=[ 368], 40.00th=[ 405], 50.00th=[ 435], 60.00th=[ 468], | 70.00th=[ 514], 80.00th=[ 567], 90.00th=[ 659], 95.00th=[ 735], | 99.00th=[ 852], 99.50th=[ 869], 99.90th=[ 961], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 95, per=24.48%, avg=41.87, stdev=20.55, samples=232 iops : min= 1, max= 23, avg= 9.96, stdev= 5.15, samples=232 write: IOPS=11, BW=44.9KiB/s (45.0kB/s)(5264KiB/117243msec); 0 zone resets slat (usec): min=32, max=10265, avg=227.44, stdev=677.24 clat (msec): min=277, max=1990, avg=977.46, stdev=314.38 lat (msec): min=277, max=1990, avg=977.69, stdev=314.37 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 558], 10.00th=[ 617], 20.00th=[ 693], | 30.00th=[ 785], 40.00th=[ 852], 50.00th=[ 927], 60.00th=[ 1003], | 70.00th=[ 1099], 80.00th=[ 1267], 90.00th=[ 1418], 95.00th=[ 1603], | 99.00th=[ 1770], 99.50th=[ 1838], 99.90th=[ 1955], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 111, per=24.96%, avg=44.43, stdev=21.15, samples=232 iops : min= 1, max= 27, avg=10.61, stdev= 5.31, samples=232 lat (msec) : 50=0.04%, 100=0.27%, 250=1.37%, 500=32.15%, 750=26.64% lat (msec) : 1000=18.91%, 2000=20.62% cpu : usr=0.07%, sys=0.52%, ctx=4183, 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=146827: Fri Sep 11 10:10:13 2026 read: IOPS=10, BW=42.5KiB/s (43.5kB/s)(4984KiB/117301msec) slat (usec): min=2964, max=53729, avg=14819.07, stdev=8506.45 clat (msec): min=28, max=932, avg=452.05, stdev=138.56 lat (msec): min=39, max=940, avg=466.88, stdev=140.20 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 259], 10.00th=[ 292], 20.00th=[ 338], | 30.00th=[ 363], 40.00th=[ 401], 50.00th=[ 435], 60.00th=[ 472], | 70.00th=[ 514], 80.00th=[ 558], 90.00th=[ 642], 95.00th=[ 709], | 99.00th=[ 852], 99.50th=[ 860], 99.90th=[ 902], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 127, per=24.73%, avg=42.28, stdev=23.10, samples=231 iops : min= 1, max= 31, avg=10.06, stdev= 5.79, samples=231 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(5256KiB/117301msec); 0 zone resets slat (usec): min=28, max=7116, avg=187.26, stdev=445.94 clat (msec): min=178, max=2043, avg=982.22, stdev=318.46 lat (msec): min=179, max=2043, avg=982.41, stdev=318.45 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 567], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 927], 60.00th=[ 995], | 70.00th=[ 1099], 80.00th=[ 1267], 90.00th=[ 1435], 95.00th=[ 1586], | 99.00th=[ 1838], 99.50th=[ 1905], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 96, per=24.93%, avg=44.38, stdev=21.15, samples=231 iops : min= 1, max= 24, avg=10.59, stdev= 5.25, samples=231 lat (msec) : 50=0.04%, 250=2.03%, 500=31.88%, 750=26.33%, 1000=19.77% lat (msec) : 2000=19.84%, >=2000=0.12% cpu : usr=0.08%, sys=0.51%, ctx=4194, 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=146828: Fri Sep 11 10:10:13 2026 read: IOPS=10, BW=43.2KiB/s (44.3kB/s)(5060KiB/117076msec) slat (usec): min=2802, max=59797, avg=14794.47, stdev=8555.30 clat (msec): min=11, max=960, avg=456.29, stdev=144.31 lat (msec): min=17, max=977, avg=471.09, stdev=145.88 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 268], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 372], 40.00th=[ 401], 50.00th=[ 435], 60.00th=[ 468], | 70.00th=[ 510], 80.00th=[ 567], 90.00th=[ 667], 95.00th=[ 743], | 99.00th=[ 860], 99.50th=[ 885], 99.90th=[ 936], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 111, per=25.43%, avg=43.48, stdev=21.31, samples=228 iops : min= 1, max= 27, avg=10.37, stdev= 5.29, samples=228 write: IOPS=11, BW=44.2KiB/s (45.3kB/s)(5180KiB/117076msec); 0 zone resets slat (usec): min=27, max=9716, avg=207.14, stdev=537.14 clat (msec): min=282, max=2010, avg=983.36, stdev=313.25 lat (msec): min=283, max=2010, avg=983.57, stdev=313.26 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 567], 10.00th=[ 634], 20.00th=[ 709], | 30.00th=[ 785], 40.00th=[ 852], 50.00th=[ 936], 60.00th=[ 1011], | 70.00th=[ 1116], 80.00th=[ 1267], 90.00th=[ 1418], 95.00th=[ 1586], | 99.00th=[ 1821], 99.50th=[ 1838], 99.90th=[ 1989], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 103, per=24.80%, avg=44.15, stdev=20.08, samples=229 iops : min= 1, max= 25, avg=10.53, stdev= 5.02, samples=229 lat (msec) : 20=0.04%, 50=0.08%, 100=0.04%, 250=1.48%, 500=32.73% lat (msec) : 750=25.47%, 1000=19.26%, 2000=20.86%, >=2000=0.04% cpu : usr=0.08%, sys=0.47%, ctx=4281, 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=171KiB/s (175kB/s), 42.4KiB/s-43.4KiB/s (43.5kB/s-44.4kB/s), io=19.6MiB (20.5MB), run=116360-117301msec WRITE: bw=178KiB/s (182kB/s), 44.2KiB/s-44.9KiB/s (45.3kB/s-45.0kB/s), io=20.4MiB (21.4MB), run=116360-117301msec 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=146850: Fri Sep 11 10:10:21 2026 read: IOPS=1, BW=74.2MiB/s (77.8MB/s)(40.0MiB/539msec) slat (nsec): min=29891k, max=29891k, avg=29890782.00, stdev= 0.00 clat (nsec): min=489130k, max=489130k, avg=489130309.00, stdev= 0.00 lat (nsec): min=519026k, max=519026k, avg=519025996.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.23%, ctx=15, 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=74.2MiB/s (77.8MB/s), 74.2MiB/s-74.2MiB/s (77.8MB/s-77.8MB/s), io=40.0MiB (41.9MB), run=539-539msec 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