== sanity test 398c: run fio to test AIO ================= 19:28:00 (1775863680) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.163349 s, 257 MB/s osc.lustre-OST0000-osc-ffff95114b634800.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=160320: Fri Apr 10 19:28:38 2026 write: IOPS=74, BW=299KiB/s (306kB/s)(10.0MiB/34294msec); 0 zone resets slat (usec): min=37, max=1981, avg=208.36, stdev=122.10 clat (msec): min=38, max=372, avg=213.93, stdev=50.23 lat (msec): min=38, max=372, avg=214.14, stdev=50.24 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 133], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 326], 99.50th=[ 330], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 372] bw ( KiB/s): min= 176, max= 614, per=24.88%, avg=297.10, stdev=63.97, samples=68 iops : min= 44, max= 153, avg=74.25, stdev=15.98, samples=68 lat (msec) : 50=0.62%, 100=0.66%, 250=75.12%, 500=23.59% cpu : usr=0.10%, sys=1.23%, ctx=2806, 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=160321: Fri Apr 10 19:28:38 2026 write: IOPS=74, BW=299KiB/s (306kB/s)(10.0MiB/34258msec); 0 zone resets slat (usec): min=37, max=2689, avg=210.26, stdev=119.29 clat (msec): min=28, max=362, avg=213.79, stdev=51.58 lat (msec): min=28, max=362, avg=214.01, stdev=51.59 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 128], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 259], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 321], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 355], | 99.99th=[ 363] bw ( KiB/s): min= 184, max= 614, per=24.88%, avg=297.10, stdev=63.25, samples=68 iops : min= 46, max= 153, avg=74.25, stdev=15.80, samples=68 lat (msec) : 50=0.62%, 100=1.33%, 250=74.61%, 500=23.44% cpu : usr=0.10%, sys=1.25%, ctx=2840, 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=160322: Fri Apr 10 19:28:38 2026 write: IOPS=74, BW=299KiB/s (306kB/s)(10.0MiB/34294msec); 0 zone resets slat (usec): min=40, max=3972, avg=214.69, stdev=138.13 clat (msec): min=70, max=357, avg=213.88, stdev=50.94 lat (msec): min=70, max=357, avg=214.09, stdev=50.95 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 131], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 359] bw ( KiB/s): min= 175, max= 614, per=24.88%, avg=297.10, stdev=62.74, samples=68 iops : min= 43, max= 153, avg=74.25, stdev=15.68, samples=68 lat (msec) : 100=1.45%, 250=75.00%, 500=23.55% cpu : usr=0.13%, sys=1.22%, ctx=2864, 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=160323: Fri Apr 10 19:28:38 2026 write: IOPS=74, BW=299KiB/s (306kB/s)(10.0MiB/34294msec); 0 zone resets slat (usec): min=40, max=1696, avg=221.30, stdev=115.59 clat (msec): min=21, max=373, avg=213.89, stdev=50.85 lat (msec): min=21, max=373, avg=214.11, stdev=50.85 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 133], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 363], 99.95th=[ 368], | 99.99th=[ 376] bw ( KiB/s): min= 192, max= 627, per=24.88%, avg=297.06, stdev=62.44, samples=68 iops : min= 48, max= 156, avg=74.24, stdev=15.57, samples=68 lat (msec) : 50=0.20%, 100=1.48%, 250=74.96%, 500=23.36% cpu : usr=0.14%, sys=1.26%, ctx=2819, 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=1194KiB/s (1223kB/s), 299KiB/s-299KiB/s (306kB/s-306kB/s), io=40.0MiB (41.9MB), run=34258-34294msec 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=160338: Fri Apr 10 19:29:01 2026 read: IOPS=65, BW=260KiB/s (267kB/s)(5048KiB/19384msec) slat (usec): min=1031, max=5244, avg=2362.64, stdev=739.63 clat (msec): min=2, max=149, avg=75.68, stdev=15.12 lat (msec): min=4, max=152, avg=78.05, stdev=15.22 clat percentiles (msec): | 1.00th=[ 32], 5.00th=[ 55], 10.00th=[ 60], 20.00th=[ 66], | 30.00th=[ 69], 40.00th=[ 72], 50.00th=[ 75], 60.00th=[ 79], | 70.00th=[ 83], 80.00th=[ 88], 90.00th=[ 94], 95.00th=[ 100], | 99.00th=[ 117], 99.50th=[ 121], 99.90th=[ 132], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 184, max= 344, per=25.26%, avg=260.92, stdev=46.43, samples=38 iops : min= 46, max= 86, avg=65.18, stdev=11.63, samples=38 write: IOPS=66, BW=268KiB/s (274kB/s)(5192KiB/19384msec); 0 zone resets slat (usec): min=41, max=1481, avg=188.61, stdev=105.12 clat (msec): min=24, max=271, avg=162.43, stdev=39.20 lat (msec): min=24, max=271, avg=162.62, stdev=39.21 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 94], 10.00th=[ 111], 20.00th=[ 129], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 226], | 99.00th=[ 251], 99.50th=[ 262], 99.90th=[ 268], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 176, max= 344, per=24.86%, avg=267.50, stdev=41.86, samples=38 iops : min= 44, max= 86, avg=66.82, stdev=10.52, samples=38 lat (msec) : 4=0.16%, 20=0.20%, 50=1.29%, 100=48.83%, 250=49.06% lat (msec) : 500=0.47% cpu : usr=0.22%, sys=2.28%, ctx=4813, 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=160339: Fri Apr 10 19:29:01 2026 read: IOPS=64, BW=256KiB/s (263kB/s)(4976KiB/19409msec) slat (usec): min=49, max=6311, avg=2364.25, stdev=756.17 clat (msec): min=13, max=126, avg=76.09, stdev=13.81 lat (msec): min=14, max=129, avg=78.46, stdev=13.93 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 65], | 30.00th=[ 70], 40.00th=[ 73], 50.00th=[ 77], 60.00th=[ 80], | 70.00th=[ 83], 80.00th=[ 88], 90.00th=[ 93], 95.00th=[ 100], | 99.00th=[ 111], 99.50th=[ 116], 99.90th=[ 127], 99.95th=[ 127], | 99.99th=[ 127] bw ( KiB/s): min= 176, max= 384, per=24.67%, avg=254.87, stdev=52.30, samples=38 iops : min= 44, max= 96, avg=63.68, stdev=13.07, samples=38 write: IOPS=67, BW=271KiB/s (278kB/s)(5264KiB/19409msec); 0 zone resets slat (usec): min=50, max=1674, avg=185.20, stdev=99.76 clat (msec): min=30, max=280, avg=161.49, stdev=40.33 lat (msec): min=30, max=280, avg=161.68, stdev=40.33 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 93], 10.00th=[ 108], 20.00th=[ 129], | 30.00th=[ 142], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 211], 95.00th=[ 226], | 99.00th=[ 251], 99.50th=[ 264], 99.90th=[ 271], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 183, max= 376, per=25.02%, avg=269.21, stdev=44.11, samples=38 iops : min= 45, max= 94, avg=67.26, stdev=11.09, samples=38 lat (msec) : 20=0.04%, 50=1.48%, 100=48.59%, 250=49.38%, 500=0.51% cpu : usr=0.25%, sys=2.25%, ctx=4783, 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=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=160340: Fri Apr 10 19:29:01 2026 read: IOPS=64, BW=257KiB/s (263kB/s)(4984KiB/19400msec) slat (usec): min=1017, max=6002, avg=2372.50, stdev=723.19 clat (msec): min=3, max=145, avg=75.47, stdev=14.43 lat (msec): min=5, max=146, avg=77.84, stdev=14.51 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 65], | 30.00th=[ 69], 40.00th=[ 72], 50.00th=[ 77], 60.00th=[ 80], | 70.00th=[ 83], 80.00th=[ 87], 90.00th=[ 93], 95.00th=[ 99], | 99.00th=[ 114], 99.50th=[ 117], 99.90th=[ 123], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 151, max= 368, per=24.97%, avg=257.97, stdev=51.21, samples=38 iops : min= 37, max= 92, avg=64.45, stdev=12.85, samples=38 write: IOPS=67, BW=271KiB/s (277kB/s)(5256KiB/19400msec); 0 zone resets slat (usec): min=49, max=875, avg=188.72, stdev=89.64 clat (msec): min=34, max=280, avg=161.80, stdev=39.21 lat (msec): min=34, max=280, avg=161.99, stdev=39.21 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 94], 10.00th=[ 108], 20.00th=[ 129], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 211], 95.00th=[ 224], | 99.00th=[ 255], 99.50th=[ 262], 99.90th=[ 271], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 184, max= 368, per=25.05%, avg=269.58, stdev=46.30, samples=38 iops : min= 46, max= 92, avg=67.34, stdev=11.60, samples=38 lat (msec) : 4=0.08%, 20=0.27%, 50=0.86%, 100=49.14%, 250=49.02% lat (msec) : 500=0.62% cpu : usr=0.25%, sys=2.28%, ctx=4820, 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=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=160341: Fri Apr 10 19:29:01 2026 read: IOPS=65, BW=261KiB/s (267kB/s)(5060KiB/19400msec) slat (usec): min=1010, max=6206, avg=2322.79, stdev=759.25 clat (msec): min=5, max=149, avg=75.57, stdev=14.07 lat (msec): min=8, max=151, avg=77.89, stdev=14.17 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 66], | 30.00th=[ 69], 40.00th=[ 72], 50.00th=[ 75], 60.00th=[ 79], | 70.00th=[ 82], 80.00th=[ 87], 90.00th=[ 93], 95.00th=[ 99], | 99.00th=[ 112], 99.50th=[ 117], 99.90th=[ 148], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 168, max= 376, per=25.36%, avg=261.95, stdev=49.71, samples=38 iops : min= 42, max= 94, avg=65.45, stdev=12.49, samples=38 write: IOPS=66, BW=267KiB/s (273kB/s)(5180KiB/19400msec); 0 zone resets slat (usec): min=54, max=800, avg=183.16, stdev=88.10 clat (msec): min=43, max=280, avg=162.93, stdev=40.64 lat (msec): min=43, max=280, avg=163.11, stdev=40.65 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 95], 10.00th=[ 108], 20.00th=[ 128], | 30.00th=[ 142], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 230], | 99.00th=[ 259], 99.50th=[ 266], 99.90th=[ 271], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 208, max= 360, per=24.69%, avg=265.68, stdev=36.84, samples=38 iops : min= 52, max= 90, avg=66.37, stdev= 9.25, samples=38 lat (msec) : 10=0.12%, 20=0.12%, 50=1.05%, 100=49.65%, 250=48.20% lat (msec) : 500=0.86% cpu : usr=0.23%, sys=2.27%, ctx=4756, 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=1034KiB/s (1059kB/s), 256KiB/s-261KiB/s (263kB/s-267kB/s), io=19.6MiB (20.5MB), run=19384-19409msec WRITE: bw=1076KiB/s (1102kB/s), 267KiB/s-271KiB/s (273kB/s-278kB/s), io=20.4MiB (21.4MB), run=19384-19409msec 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=160347: Fri Apr 10 19:29:04 2026 read: IOPS=9, BW=396MiB/s (415MB/s)(40.0MiB/101msec) slat (nsec): min=7723.3k, max=7723.3k, avg=7723340.00, stdev= 0.00 clat (nsec): min=89517k, max=89517k, avg=89516967.00, stdev= 0.00 lat (nsec): min=97243k, max=97243k, avg=97243110.00, stdev= 0.00 clat percentiles (usec): | 1.00th=[89654], 5.00th=[89654], 10.00th=[89654], 20.00th=[89654], | 30.00th=[89654], 40.00th=[89654], 50.00th=[89654], 60.00th=[89654], | 70.00th=[89654], 80.00th=[89654], 90.00th=[89654], 95.00th=[89654], | 99.00th=[89654], 99.50th=[89654], 99.90th=[89654], 99.95th=[89654], | 99.99th=[89654] lat (msec) : 100=100.00% cpu : usr=0.00%, sys=6.93%, ctx=6, 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=396MiB/s (415MB/s), 396MiB/s-396MiB/s (415MB/s-415MB/s), io=40.0MiB (41.9MB), run=101-101msec 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