== sanity test 398c: run fio to test AIO ================= 19:26:44 (1788564404) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.497227 s, 84.4 MB/s osc.lustre-OST0000-osc-ffff9058056e9800.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=144286: Fri Sep 4 19:29:55 2026 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(10.0MiB/180258msec); 0 zone resets slat (usec): min=21, max=20085, avg=176.62, stdev=785.87 clat (msec): min=175, max=2628, avg=1125.92, stdev=450.72 lat (msec): min=175, max=2628, avg=1126.10, stdev=450.74 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 550], 10.00th=[ 642], 20.00th=[ 743], | 30.00th=[ 844], 40.00th=[ 927], 50.00th=[ 1045], 60.00th=[ 1150], | 70.00th=[ 1267], 80.00th=[ 1469], 90.00th=[ 1787], 95.00th=[ 2039], | 99.00th=[ 2433], 99.50th=[ 2534], 99.90th=[ 2567], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 7, max= 160, per=26.33%, avg=59.50, stdev=36.32, samples=338 iops : min= 1, max= 40, avg=14.37, stdev= 9.14, samples=338 lat (msec) : 250=0.62%, 500=2.89%, 750=16.99%, 1000=25.35%, 2000=48.36% lat (msec) : >=2000=5.78% cpu : usr=0.03%, sys=0.16%, ctx=1483, 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=144287: Fri Sep 4 19:29:55 2026 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(10.0MiB/180265msec); 0 zone resets slat (usec): min=22, max=20001, avg=214.84, stdev=1058.89 clat (msec): min=97, max=2871, avg=1125.37, stdev=450.86 lat (msec): min=97, max=2871, avg=1125.59, stdev=450.89 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 542], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 835], 40.00th=[ 919], 50.00th=[ 1028], 60.00th=[ 1150], | 70.00th=[ 1267], 80.00th=[ 1485], 90.00th=[ 1770], 95.00th=[ 2005], | 99.00th=[ 2467], 99.50th=[ 2534], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2869] bw ( KiB/s): min= 7, max= 192, per=25.78%, avg=58.27, stdev=33.41, samples=345 iops : min= 1, max= 48, avg=14.06, stdev= 8.39, samples=345 lat (msec) : 100=0.04%, 250=0.04%, 500=4.18%, 750=15.62%, 1000=27.30% lat (msec) : 2000=47.66%, >=2000=5.16% cpu : usr=0.04%, sys=0.19%, ctx=1881, 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=144288: Fri Sep 4 19:29:55 2026 write: IOPS=14, BW=56.8KiB/s (58.2kB/s)(10.0MiB/180256msec); 0 zone resets slat (usec): min=21, max=102229, avg=214.82, stdev=2140.46 clat (msec): min=154, max=2891, avg=1125.48, stdev=446.63 lat (msec): min=154, max=2891, avg=1125.70, stdev=446.61 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 550], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 852], 40.00th=[ 936], 50.00th=[ 1036], 60.00th=[ 1150], | 70.00th=[ 1284], 80.00th=[ 1469], 90.00th=[ 1770], 95.00th=[ 1989], | 99.00th=[ 2467], 99.50th=[ 2601], 99.90th=[ 2735], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 7, max= 230, per=25.57%, avg=57.78, stdev=34.16, samples=348 iops : min= 1, max= 57, avg=13.94, stdev= 8.56, samples=348 lat (msec) : 250=0.04%, 500=3.36%, 750=16.29%, 1000=27.15%, 2000=48.36% lat (msec) : >=2000=4.80% cpu : usr=0.04%, sys=0.21%, ctx=1770, 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=144289: Fri Sep 4 19:29:55 2026 write: IOPS=14, BW=56.7KiB/s (58.1kB/s)(10.0MiB/180480msec); 0 zone resets slat (usec): min=22, max=32865, avg=187.68, stdev=981.07 clat (msec): min=340, max=2722, avg=1126.68, stdev=446.09 lat (msec): min=340, max=2722, avg=1126.87, stdev=446.16 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 558], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 852], 40.00th=[ 936], 50.00th=[ 1028], 60.00th=[ 1133], | 70.00th=[ 1284], 80.00th=[ 1485], 90.00th=[ 1770], 95.00th=[ 2005], | 99.00th=[ 2400], 99.50th=[ 2534], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 254, per=25.95%, avg=58.65, stdev=35.13, samples=343 iops : min= 1, max= 63, avg=14.16, stdev= 8.81, samples=343 lat (msec) : 500=2.93%, 750=16.64%, 1000=27.89%, 2000=47.42%, >=2000=5.12% cpu : usr=0.03%, sys=0.17%, ctx=1448, 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-56.8KiB/s (58.1kB/s-58.2kB/s), io=40.0MiB (41.9MB), run=180256-180480msec 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=144326: Fri Sep 4 19:32:08 2026 read: IOPS=10, BW=40.0KiB/s (41.9kB/s)(5048KiB/123226msec) slat (msec): min=2, max=250, avg=15.97, stdev=15.17 clat (msec): min=11, max=1108, avg=474.12, stdev=162.01 lat (msec): min=24, max=1120, avg=490.10, stdev=164.19 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 266], 10.00th=[ 305], 20.00th=[ 347], | 30.00th=[ 380], 40.00th=[ 414], 50.00th=[ 447], 60.00th=[ 485], | 70.00th=[ 531], 80.00th=[ 600], 90.00th=[ 709], 95.00th=[ 776], | 99.00th=[ 919], 99.50th=[ 978], 99.90th=[ 1062], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 104, per=25.09%, avg=40.65, stdev=20.89, samples=243 iops : min= 1, max= 26, avg= 9.70, stdev= 5.29, samples=243 write: IOPS=10, BW=42.1KiB/s (43.1kB/s)(5192KiB/123226msec); 0 zone resets slat (usec): min=22, max=21211, avg=304.46, stdev=1309.72 clat (msec): min=329, max=2003, avg=1038.74, stdev=276.05 lat (msec): min=329, max=2003, avg=1039.05, stdev=276.06 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 642], 10.00th=[ 701], 20.00th=[ 802], | 30.00th=[ 885], 40.00th=[ 953], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1519], | 99.00th=[ 1804], 99.50th=[ 1905], 99.90th=[ 1989], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 102, per=25.20%, avg=42.59, stdev=19.48, samples=239 iops : min= 1, max= 25, avg=10.19, stdev= 4.92, samples=239 lat (msec) : 20=0.04%, 50=0.12%, 100=0.23%, 250=1.52%, 500=30.04% lat (msec) : 750=21.05%, 1000=20.04%, 2000=26.91%, >=2000=0.04% cpu : usr=0.08%, sys=0.60%, ctx=4416, 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=144327: Fri Sep 4 19:32:08 2026 read: IOPS=10, BW=40.4KiB/s (41.4kB/s)(4976KiB/123088msec) slat (usec): min=34, max=66321, avg=15332.59, stdev=9597.16 clat (msec): min=9, max=1108, avg=471.66, stdev=155.59 lat (msec): min=17, max=1118, avg=487.00, stdev=157.57 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 264], 10.00th=[ 300], 20.00th=[ 347], | 30.00th=[ 384], 40.00th=[ 409], 50.00th=[ 447], 60.00th=[ 485], | 70.00th=[ 531], 80.00th=[ 600], 90.00th=[ 701], 95.00th=[ 768], | 99.00th=[ 885], 99.50th=[ 927], 99.90th=[ 1011], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 112, per=24.80%, avg=40.18, stdev=20.58, samples=241 iops : min= 1, max= 28, avg= 9.58, stdev= 5.21, samples=241 write: IOPS=10, BW=42.8KiB/s (43.8kB/s)(5264KiB/123088msec); 0 zone resets slat (usec): min=21, max=11327, avg=247.42, stdev=786.02 clat (msec): min=234, max=2036, avg=1035.22, stdev=288.31 lat (msec): min=234, max=2036, avg=1035.47, stdev=288.29 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 617], 10.00th=[ 693], 20.00th=[ 793], | 30.00th=[ 877], 40.00th=[ 944], 50.00th=[ 1020], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1401], 95.00th=[ 1519], | 99.00th=[ 1770], 99.50th=[ 1838], 99.90th=[ 2005], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 127, per=25.51%, avg=43.11, stdev=19.86, samples=239 iops : min= 1, max= 31, avg=10.32, stdev= 4.97, samples=239 lat (msec) : 10=0.04%, 50=0.12%, 100=0.08%, 250=1.72%, 500=30.94% lat (msec) : 750=20.43%, 1000=18.91%, 2000=27.66%, >=2000=0.12% cpu : usr=0.10%, sys=0.53%, ctx=4429, 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=144328: Fri Sep 4 19:32:08 2026 read: IOPS=10, BW=40.5KiB/s (41.5kB/s)(4984KiB/123084msec) slat (usec): min=2930, max=69585, avg=15922.18, stdev=10125.23 clat (msec): min=19, max=1092, avg=475.66, stdev=164.34 lat (msec): min=33, max=1119, avg=491.59, stdev=167.00 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 268], 10.00th=[ 296], 20.00th=[ 338], | 30.00th=[ 380], 40.00th=[ 414], 50.00th=[ 447], 60.00th=[ 485], | 70.00th=[ 535], 80.00th=[ 600], 90.00th=[ 718], 95.00th=[ 793], | 99.00th=[ 911], 99.50th=[ 944], 99.90th=[ 1062], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 119, per=25.02%, avg=40.53, stdev=19.61, samples=241 iops : min= 1, max= 29, avg= 9.67, stdev= 4.92, samples=241 write: IOPS=10, BW=42.7KiB/s (43.7kB/s)(5256KiB/123084msec); 0 zone resets slat (usec): min=28, max=92432, avg=343.76, stdev=2874.55 clat (msec): min=202, max=1997, avg=1028.47, stdev=285.87 lat (msec): min=203, max=1997, avg=1028.82, stdev=285.69 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 609], 10.00th=[ 684], 20.00th=[ 785], | 30.00th=[ 869], 40.00th=[ 944], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1267], 90.00th=[ 1401], 95.00th=[ 1519], | 99.00th=[ 1770], 99.50th=[ 1821], 99.90th=[ 1921], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 135, per=25.29%, avg=42.75, stdev=19.49, samples=240 iops : min= 1, max= 33, avg=10.22, stdev= 4.92, samples=240 lat (msec) : 20=0.04%, 50=0.16%, 100=0.20%, 250=1.17%, 500=30.59% lat (msec) : 750=21.02%, 1000=19.96%, 2000=26.88% cpu : usr=0.10%, sys=0.63%, ctx=4665, 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=144329: Fri Sep 4 19:32:08 2026 read: IOPS=10, BW=41.2KiB/s (42.2kB/s)(5060KiB/122925msec) slat (msec): min=2, max=1026, avg=15.95, stdev=30.04 clat (msec): min=35, max=1915, avg=476.38, stdev=179.80 lat (msec): min=46, max=1936, avg=492.33, stdev=182.61 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 262], 10.00th=[ 292], 20.00th=[ 338], | 30.00th=[ 372], 40.00th=[ 414], 50.00th=[ 447], 60.00th=[ 481], | 70.00th=[ 527], 80.00th=[ 600], 90.00th=[ 709], 95.00th=[ 776], | 99.00th=[ 953], 99.50th=[ 1167], 99.90th=[ 1888], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 7, max= 104, per=25.58%, avg=41.45, stdev=19.70, samples=239 iops : min= 1, max= 26, avg= 9.91, stdev= 4.95, samples=239 write: IOPS=10, BW=42.1KiB/s (43.1kB/s)(5180KiB/122925msec); 0 zone resets slat (usec): min=29, max=23257, avg=269.21, stdev=1072.44 clat (msec): min=234, max=1936, avg=1034.40, stdev=279.88 lat (msec): min=234, max=1937, avg=1034.67, stdev=279.88 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 651], 10.00th=[ 709], 20.00th=[ 793], | 30.00th=[ 877], 40.00th=[ 953], 50.00th=[ 1020], 60.00th=[ 1083], | 70.00th=[ 1167], 80.00th=[ 1250], 90.00th=[ 1401], 95.00th=[ 1536], | 99.00th=[ 1787], 99.50th=[ 1838], 99.90th=[ 1888], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 127, per=25.24%, avg=42.65, stdev=20.35, samples=238 iops : min= 1, max= 31, avg=10.21, stdev= 5.13, samples=238 lat (msec) : 50=0.08%, 100=0.12%, 250=1.91%, 500=30.39%, 750=20.51% lat (msec) : 1000=20.12%, 2000=26.88% cpu : usr=0.08%, sys=0.57%, ctx=4427, 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=163KiB/s (167kB/s), 40.4KiB/s-41.2KiB/s (41.4kB/s-42.2kB/s), io=19.6MiB (20.5MB), run=122925-123226msec WRITE: bw=170KiB/s (174kB/s), 42.1KiB/s-42.8KiB/s (43.1kB/s-43.8kB/s), io=20.4MiB (21.4MB), run=122925-123226msec 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=144351: Fri Sep 4 19:32:20 2026 read: IOPS=1, BW=68.3MiB/s (71.6MB/s)(40.0MiB/586msec) slat (nsec): min=52789k, max=52789k, avg=52788924.00, stdev= 0.00 clat (nsec): min=503526k, max=503526k, avg=503526492.00, stdev= 0.00 lat (nsec): min=556319k, max=556319k, avg=556319203.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.05%, ctx=5, majf=0, minf=9 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=68.3MiB/s (71.6MB/s), 68.3MiB/s-68.3MiB/s (71.6MB/s-71.6MB/s), io=40.0MiB (41.9MB), run=586-586msec 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