== sanity test 398c: run fio to test AIO ================= 03:20:20 (1771402820) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.288967 s, 145 MB/s osc.lustre-OST0000-osc-ffff9003315fd800.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=148317: Wed Feb 18 03:21:34 2026 write: IOPS=37, BW=149KiB/s (152kB/s)(10.0MiB/68945msec); 0 zone resets slat (usec): min=37, max=8520, avg=226.15, stdev=349.04 clat (msec): min=119, max=880, avg=430.27, stdev=125.94 lat (msec): min=119, max=880, avg=430.49, stdev=125.94 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 243], 10.00th=[ 275], 20.00th=[ 326], | 30.00th=[ 368], 40.00th=[ 401], 50.00th=[ 426], 60.00th=[ 456], | 70.00th=[ 489], 80.00th=[ 527], 90.00th=[ 584], 95.00th=[ 651], | 99.00th=[ 751], 99.50th=[ 810], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 39, max= 384, per=24.84%, avg=147.55, stdev=45.95, samples=137 iops : min= 9, max= 96, avg=36.58, stdev=11.53, samples=137 lat (msec) : 250=6.21%, 500=66.80%, 750=25.94%, 1000=1.05% cpu : usr=0.08%, sys=0.50%, ctx=3091, 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=148318: Wed Feb 18 03:21:34 2026 write: IOPS=37, BW=149KiB/s (152kB/s)(10.0MiB/68808msec); 0 zone resets slat (usec): min=36, max=6575, avg=230.11, stdev=351.48 clat (msec): min=13, max=927, avg=429.52, stdev=128.59 lat (msec): min=14, max=927, avg=429.75, stdev=128.59 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 226], 10.00th=[ 279], 20.00th=[ 330], | 30.00th=[ 363], 40.00th=[ 397], 50.00th=[ 426], 60.00th=[ 456], | 70.00th=[ 485], 80.00th=[ 527], 90.00th=[ 584], 95.00th=[ 651], | 99.00th=[ 793], 99.50th=[ 844], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 927] bw ( KiB/s): min= 39, max= 368, per=25.01%, avg=148.59, stdev=48.96, samples=136 iops : min= 9, max= 92, avg=36.85, stdev=12.26, samples=136 lat (msec) : 20=0.04%, 50=0.04%, 100=0.31%, 250=6.64%, 500=66.95% lat (msec) : 750=24.30%, 1000=1.72% cpu : usr=0.08%, sys=0.56%, ctx=3101, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=148319: Wed Feb 18 03:21:34 2026 write: IOPS=37, BW=149KiB/s (152kB/s)(10.0MiB/68862msec); 0 zone resets slat (usec): min=36, max=7861, avg=239.21, stdev=402.88 clat (msec): min=123, max=902, avg=429.74, stdev=127.53 lat (msec): min=124, max=903, avg=429.98, stdev=127.55 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 224], 10.00th=[ 279], 20.00th=[ 326], | 30.00th=[ 363], 40.00th=[ 397], 50.00th=[ 426], 60.00th=[ 456], | 70.00th=[ 485], 80.00th=[ 527], 90.00th=[ 584], 95.00th=[ 651], | 99.00th=[ 785], 99.50th=[ 835], 99.90th=[ 894], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 24, max= 384, per=24.85%, avg=147.60, stdev=48.06, samples=137 iops : min= 6, max= 96, avg=36.60, stdev=12.03, samples=137 lat (msec) : 250=6.48%, 500=67.34%, 750=24.34%, 1000=1.84% cpu : usr=0.07%, sys=0.56%, ctx=3067, 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=148320: Wed Feb 18 03:21:34 2026 write: IOPS=37, BW=149KiB/s (152kB/s)(10.0MiB/68913msec); 0 zone resets slat (usec): min=37, max=7550, avg=246.84, stdev=394.67 clat (msec): min=123, max=880, avg=429.90, stdev=127.25 lat (msec): min=124, max=880, avg=430.15, stdev=127.27 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 230], 10.00th=[ 275], 20.00th=[ 326], | 30.00th=[ 368], 40.00th=[ 397], 50.00th=[ 426], 60.00th=[ 451], | 70.00th=[ 489], 80.00th=[ 527], 90.00th=[ 592], 95.00th=[ 659], | 99.00th=[ 768], 99.50th=[ 818], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 32, max= 384, per=24.85%, avg=147.60, stdev=46.86, samples=137 iops : min= 8, max= 96, avg=36.60, stdev=11.73, samples=137 lat (msec) : 250=6.64%, 500=66.17%, 750=25.82%, 1000=1.37% cpu : usr=0.05%, sys=0.60%, ctx=3014, 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=594KiB/s (608kB/s), 149KiB/s-149KiB/s (152kB/s-152kB/s), io=40.0MiB (41.9MB), run=68808-68945msec 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=148340: Wed Feb 18 03:22:23 2026 read: IOPS=27, BW=112KiB/s (114kB/s)(5048KiB/45227msec) slat (usec): min=1466, max=27268, avg=5904.13, stdev=3185.45 clat (msec): min=4, max=462, avg=177.90, stdev=64.18 lat (msec): min=9, max=466, avg=183.81, stdev=65.42 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 90], 10.00th=[ 105], 20.00th=[ 123], | 30.00th=[ 140], 40.00th=[ 155], 50.00th=[ 169], 60.00th=[ 188], | 70.00th=[ 209], 80.00th=[ 234], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 347], 99.50th=[ 380], 99.90th=[ 435], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 39, max= 232, per=25.32%, avg=111.66, stdev=41.90, samples=89 iops : min= 9, max= 58, avg=27.57, stdev=10.56, samples=89 write: IOPS=28, BW=115KiB/s (118kB/s)(5192KiB/45227msec); 0 zone resets slat (usec): min=50, max=7442, avg=271.30, stdev=465.62 clat (msec): min=72, max=870, avg=377.31, stdev=132.64 lat (msec): min=72, max=870, avg=377.59, stdev=132.67 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 190], 10.00th=[ 218], 20.00th=[ 249], | 30.00th=[ 288], 40.00th=[ 330], 50.00th=[ 368], 60.00th=[ 405], | 70.00th=[ 443], 80.00th=[ 485], 90.00th=[ 558], 95.00th=[ 625], | 99.00th=[ 718], 99.50th=[ 735], 99.90th=[ 852], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 39, max= 240, per=24.92%, avg=114.40, stdev=41.79, samples=89 iops : min= 9, max= 60, avg=28.27, stdev=10.54, samples=89 lat (msec) : 10=0.04%, 50=0.39%, 100=3.75%, 250=48.09%, 500=39.02% lat (msec) : 750=8.48%, 1000=0.23% cpu : usr=0.14%, sys=1.24%, ctx=5165, 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=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=148341: Wed Feb 18 03:22:23 2026 read: IOPS=27, BW=110KiB/s (112kB/s)(4976KiB/45403msec) slat (usec): min=57, max=31530, avg=5748.86, stdev=3217.05 clat (msec): min=4, max=454, avg=176.51, stdev=63.83 lat (msec): min=7, max=460, avg=182.27, stdev=65.18 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 89], 10.00th=[ 104], 20.00th=[ 122], | 30.00th=[ 138], 40.00th=[ 150], 50.00th=[ 167], 60.00th=[ 184], | 70.00th=[ 207], 80.00th=[ 232], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 447], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 16, max= 256, per=24.74%, avg=109.09, stdev=46.93, samples=90 iops : min= 4, max= 64, avg=26.93, stdev=11.81, samples=90 write: IOPS=28, BW=116KiB/s (119kB/s)(5264KiB/45403msec); 0 zone resets slat (usec): min=40, max=5279, avg=236.26, stdev=289.40 clat (msec): min=50, max=855, avg=379.03, stdev=136.82 lat (msec): min=50, max=855, avg=379.27, stdev=136.83 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 186], 10.00th=[ 213], 20.00th=[ 255], | 30.00th=[ 292], 40.00th=[ 334], 50.00th=[ 372], 60.00th=[ 405], | 70.00th=[ 443], 80.00th=[ 485], 90.00th=[ 558], 95.00th=[ 634], | 99.00th=[ 743], 99.50th=[ 776], 99.90th=[ 844], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 39, max= 239, per=25.13%, avg=115.36, stdev=40.82, samples=90 iops : min= 9, max= 59, avg=28.50, stdev=10.31, samples=90 lat (msec) : 10=0.08%, 20=0.04%, 50=0.20%, 100=4.65%, 250=46.33% lat (msec) : 500=39.61%, 750=8.63%, 1000=0.47% cpu : usr=0.15%, sys=1.24%, ctx=5108, 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=148342: Wed Feb 18 03:22:23 2026 read: IOPS=27, BW=110KiB/s (112kB/s)(4984KiB/45463msec) slat (usec): min=1473, max=30475, avg=5822.50, stdev=3368.24 clat (msec): min=5, max=404, avg=176.54, stdev=64.83 lat (msec): min=8, max=417, avg=182.37, stdev=66.16 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 86], 10.00th=[ 104], 20.00th=[ 121], | 30.00th=[ 138], 40.00th=[ 153], 50.00th=[ 167], 60.00th=[ 186], | 70.00th=[ 205], 80.00th=[ 230], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 351], 99.50th=[ 376], 99.90th=[ 397], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 31, max= 272, per=24.72%, avg=109.02, stdev=49.34, samples=90 iops : min= 7, max= 68, avg=26.92, stdev=12.42, samples=90 write: IOPS=28, BW=116KiB/s (118kB/s)(5256KiB/45463msec); 0 zone resets slat (usec): min=44, max=13783, avg=260.75, stdev=503.54 clat (msec): min=57, max=879, avg=379.16, stdev=135.50 lat (msec): min=57, max=879, avg=379.43, stdev=135.54 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 184], 10.00th=[ 220], 20.00th=[ 253], | 30.00th=[ 296], 40.00th=[ 334], 50.00th=[ 372], 60.00th=[ 405], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 550], 95.00th=[ 625], | 99.00th=[ 743], 99.50th=[ 835], 99.90th=[ 869], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 23, max= 239, per=24.96%, avg=114.57, stdev=41.29, samples=90 iops : min= 5, max= 59, avg=28.30, stdev=10.41, samples=90 lat (msec) : 10=0.16%, 20=0.12%, 50=0.23%, 100=4.10%, 250=46.88% lat (msec) : 500=39.88%, 750=8.16%, 1000=0.47% cpu : usr=0.15%, sys=1.22%, ctx=5219, 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=148343: Wed Feb 18 03:22:23 2026 read: IOPS=27, BW=112KiB/s (114kB/s)(5060KiB/45372msec) slat (usec): min=1528, max=21106, avg=5796.32, stdev=3003.77 clat (msec): min=3, max=524, avg=178.23, stdev=63.95 lat (msec): min=7, max=531, avg=184.03, stdev=65.13 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 90], 10.00th=[ 104], 20.00th=[ 126], | 30.00th=[ 140], 40.00th=[ 155], 50.00th=[ 169], 60.00th=[ 186], | 70.00th=[ 207], 80.00th=[ 234], 90.00th=[ 264], 95.00th=[ 296], | 99.00th=[ 351], 99.50th=[ 376], 99.90th=[ 422], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 23, max= 224, per=25.21%, avg=111.17, stdev=43.66, samples=90 iops : min= 5, max= 56, avg=27.46, stdev=11.03, samples=90 write: IOPS=28, BW=114KiB/s (117kB/s)(5180KiB/45372msec); 0 zone resets slat (usec): min=44, max=8072, avg=260.37, stdev=409.92 clat (msec): min=68, max=861, avg=379.47, stdev=136.83 lat (msec): min=68, max=861, avg=379.73, stdev=136.87 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 190], 10.00th=[ 215], 20.00th=[ 255], | 30.00th=[ 292], 40.00th=[ 330], 50.00th=[ 368], 60.00th=[ 405], | 70.00th=[ 443], 80.00th=[ 481], 90.00th=[ 567], 95.00th=[ 651], | 99.00th=[ 760], 99.50th=[ 810], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 31, max= 231, per=24.71%, avg=113.42, stdev=41.82, samples=90 iops : min= 7, max= 57, avg=28.01, stdev=10.55, samples=90 lat (msec) : 4=0.04%, 10=0.04%, 20=0.12%, 50=0.16%, 100=3.98% lat (msec) : 250=47.54%, 500=39.84%, 750=7.70%, 1000=0.59% cpu : usr=0.15%, sys=1.22%, ctx=5196, 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=441KiB/s (452kB/s), 110KiB/s-112KiB/s (112kB/s-114kB/s), io=19.6MiB (20.5MB), run=45227-45463msec WRITE: bw=460KiB/s (471kB/s), 114KiB/s-116KiB/s (117kB/s-119kB/s), io=20.4MiB (21.4MB), run=45227-45463msec 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=148363: Wed Feb 18 03:22:27 2026 read: IOPS=4, BW=194MiB/s (204MB/s)(40.0MiB/206msec) slat (nsec): min=13677k, max=13677k, avg=13677165.00, stdev= 0.00 clat (nsec): min=184155k, max=184155k, avg=184154564.00, stdev= 0.00 lat (nsec): min=197837k, max=197837k, avg=197836592.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 184], | 70.00th=[ 184], 80.00th=[ 184], 90.00th=[ 184], 95.00th=[ 184], | 99.00th=[ 184], 99.50th=[ 184], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=4.88%, ctx=43, 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=194MiB/s (204MB/s), 194MiB/s-194MiB/s (204MB/s-204MB/s), io=40.0MiB (41.9MB), run=206-206msec 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