== sanity test 398c: run fio to test AIO ================= 15:21:36 (1776194496) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.474099 s, 88.5 MB/s osc.lustre-OST0000-osc-ffff974046705800.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=148915: Tue Apr 14 15:22:16 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30269msec); 0 zone resets slat (usec): min=25, max=14840, avg=323.22, stdev=1084.84 clat (msec): min=18, max=351, avg=188.46, stdev=49.96 lat (msec): min=20, max=351, avg=188.79, stdev=49.99 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 120], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 257], 95.00th=[ 271], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 151, max= 526, per=24.92%, avg=336.98, stdev=76.52, samples=59 iops : min= 37, max= 131, avg=83.83, stdev=19.17, samples=59 lat (msec) : 20=0.04%, 50=0.12%, 100=0.78%, 250=86.29%, 500=12.77% cpu : usr=0.24%, sys=1.36%, ctx=1279, 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=148916: Tue Apr 14 15:22:16 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30285msec); 0 zone resets slat (usec): min=21, max=25384, avg=326.27, stdev=1134.68 clat (msec): min=8, max=343, avg=188.81, stdev=49.82 lat (msec): min=10, max=343, avg=189.14, stdev=49.84 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 118], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 184], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 232], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 125, max= 534, per=24.94%, avg=337.22, stdev=77.95, samples=59 iops : min= 31, max= 133, avg=83.92, stdev=19.50, samples=59 lat (msec) : 10=0.04%, 100=1.60%, 250=85.98%, 500=12.38% cpu : usr=0.22%, sys=1.07%, ctx=1336, 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=148917: Tue Apr 14 15:22:16 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30234msec); 0 zone resets slat (usec): min=22, max=13443, avg=295.07, stdev=928.45 clat (msec): min=71, max=372, avg=188.21, stdev=50.85 lat (msec): min=71, max=372, avg=188.51, stdev=50.84 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 117], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 182], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 232], 90.00th=[ 257], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 215, max= 510, per=24.89%, avg=336.47, stdev=73.91, samples=59 iops : min= 53, max= 127, avg=83.69, stdev=18.54, samples=59 lat (msec) : 100=1.80%, 250=85.86%, 500=12.34% cpu : usr=0.21%, sys=1.20%, ctx=1321, 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=148918: Tue Apr 14 15:22:16 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30285msec); 0 zone resets slat (usec): min=26, max=25937, avg=330.97, stdev=1249.38 clat (msec): min=19, max=362, avg=188.68, stdev=51.39 lat (msec): min=19, max=365, avg=189.02, stdev=51.37 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 118], 10.00th=[ 128], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 159, max= 526, per=24.84%, avg=335.85, stdev=80.45, samples=59 iops : min= 39, max= 131, avg=83.53, stdev=20.18, samples=59 lat (msec) : 20=0.04%, 50=0.16%, 100=1.52%, 250=86.45%, 500=11.84% cpu : usr=0.29%, sys=1.30%, ctx=1393, 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 Run status group 0 (all jobs): WRITE: bw=1352KiB/s (1385kB/s), 338KiB/s-339KiB/s (346kB/s-347kB/s), io=40.0MiB (41.9MB), run=30234-30285msec 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=148932: Tue Apr 14 15:22:50 2026 read: IOPS=48, BW=195KiB/s (200kB/s)(5048KiB/25830msec) slat (usec): min=2225, max=54651, avg=10946.98, stdev=5836.46 clat (msec): min=19, max=254, avg=152.89, stdev=35.12 lat (msec): min=45, max=270, avg=163.84, stdev=36.05 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 101], 10.00th=[ 110], 20.00th=[ 123], | 30.00th=[ 132], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 213], | 99.00th=[ 239], 99.50th=[ 243], 99.90th=[ 247], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 119, max= 285, per=25.03%, avg=194.24, stdev=40.23, samples=51 iops : min= 29, max= 71, avg=48.00, stdev=10.10, samples=51 write: IOPS=50, BW=201KiB/s (206kB/s)(5192KiB/25830msec); 0 zone resets slat (usec): min=27, max=10145, avg=271.69, stdev=758.14 clat (msec): min=29, max=275, avg=157.20, stdev=33.04 lat (msec): min=29, max=276, avg=157.47, stdev=33.02 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 106], 10.00th=[ 116], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 213], | 99.00th=[ 247], 99.50th=[ 257], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 135, max= 340, per=24.78%, avg=200.22, stdev=41.97, samples=51 iops : min= 33, max= 85, avg=49.55, stdev=10.59, samples=51 lat (msec) : 20=0.04%, 50=0.12%, 100=4.18%, 250=95.27%, 500=0.39% cpu : usr=0.37%, sys=2.26%, ctx=2670, 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=148933: Tue Apr 14 15:22:50 2026 read: IOPS=48, BW=193KiB/s (198kB/s)(4976KiB/25794msec) slat (usec): min=2665, max=39578, avg=10993.52, stdev=5757.40 clat (msec): min=27, max=269, avg=151.95, stdev=34.97 lat (msec): min=31, max=283, avg=162.95, stdev=36.07 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 100], 10.00th=[ 109], 20.00th=[ 122], | 30.00th=[ 133], 40.00th=[ 140], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 213], | 99.00th=[ 236], 99.50th=[ 243], 99.90th=[ 255], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 107, max= 307, per=24.69%, avg=191.57, stdev=43.42, samples=51 iops : min= 26, max= 76, avg=47.31, stdev=10.87, samples=51 write: IOPS=51, BW=204KiB/s (209kB/s)(5264KiB/25794msec); 0 zone resets slat (usec): min=25, max=14324, avg=285.86, stdev=875.38 clat (msec): min=17, max=271, avg=157.55, stdev=32.02 lat (msec): min=17, max=278, avg=157.84, stdev=32.03 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 109], 10.00th=[ 115], 20.00th=[ 131], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 211], | 99.00th=[ 236], 99.50th=[ 255], 99.90th=[ 266], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 127, max= 300, per=25.19%, avg=203.55, stdev=41.49, samples=51 iops : min= 31, max= 75, avg=50.35, stdev=10.45, samples=51 lat (msec) : 20=0.04%, 50=0.08%, 100=4.14%, 250=95.39%, 500=0.35% cpu : usr=0.34%, sys=2.29%, ctx=2636, 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=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=148934: Tue Apr 14 15:22:50 2026 read: IOPS=48, BW=194KiB/s (199kB/s)(4984KiB/25669msec) slat (usec): min=22, max=37489, avg=10775.48, stdev=5612.99 clat (msec): min=47, max=270, avg=152.87, stdev=34.24 lat (msec): min=53, max=285, avg=163.65, stdev=35.14 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 100], 10.00th=[ 111], 20.00th=[ 124], | 30.00th=[ 131], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 211], | 99.00th=[ 236], 99.50th=[ 243], 99.90th=[ 262], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 103, max= 307, per=24.95%, avg=193.62, stdev=42.41, samples=50 iops : min= 25, max= 76, avg=47.84, stdev=10.65, samples=50 write: IOPS=51, BW=205KiB/s (210kB/s)(5256KiB/25669msec); 0 zone resets slat (usec): min=20, max=21773, avg=318.08, stdev=1029.34 clat (msec): min=46, max=266, avg=156.61, stdev=33.26 lat (msec): min=46, max=266, avg=156.93, stdev=33.18 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 106], 10.00th=[ 116], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 211], | 99.00th=[ 243], 99.50th=[ 253], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 111, max= 308, per=25.14%, avg=203.10, stdev=44.75, samples=50 iops : min= 27, max= 77, avg=50.24, stdev=11.27, samples=50 lat (msec) : 50=0.12%, 100=4.06%, 250=95.27%, 500=0.55% cpu : usr=0.34%, sys=2.34%, ctx=2638, 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=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=148935: Tue Apr 14 15:22:50 2026 read: IOPS=48, BW=196KiB/s (201kB/s)(5060KiB/25835msec) slat (usec): min=2439, max=46054, avg=11004.03, stdev=5846.47 clat (msec): min=47, max=262, avg=152.79, stdev=34.22 lat (msec): min=57, max=272, avg=163.80, stdev=35.11 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 102], 10.00th=[ 112], 20.00th=[ 123], | 30.00th=[ 131], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 213], | 99.00th=[ 241], 99.50th=[ 245], 99.90th=[ 257], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 114, max= 275, per=25.15%, avg=195.16, stdev=39.06, samples=51 iops : min= 28, max= 68, avg=48.22, stdev= 9.79, samples=51 write: IOPS=50, BW=201KiB/s (205kB/s)(5180KiB/25835msec); 0 zone resets slat (usec): min=25, max=20839, avg=286.05, stdev=941.16 clat (msec): min=73, max=254, avg=157.25, stdev=33.11 lat (msec): min=74, max=254, avg=157.54, stdev=33.04 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 103], 10.00th=[ 113], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 213], | 99.00th=[ 243], 99.50th=[ 247], 99.90th=[ 253], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 135, max= 348, per=24.72%, avg=199.71, stdev=43.59, samples=51 iops : min= 33, max= 87, avg=49.39, stdev=11.01, samples=51 lat (msec) : 50=0.04%, 100=3.91%, 250=95.82%, 500=0.23% cpu : usr=0.41%, sys=2.14%, ctx=2772, 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=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=777KiB/s (795kB/s), 193KiB/s-196KiB/s (198kB/s-201kB/s), io=19.6MiB (20.5MB), run=25669-25835msec WRITE: bw=809KiB/s (828kB/s), 201KiB/s-205KiB/s (205kB/s-210kB/s), io=20.4MiB (21.4MB), run=25669-25835msec 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=148943: Tue Apr 14 15:23:00 2026 read: IOPS=2, BW=83.3MiB/s (87.4MB/s)(40.0MiB/480msec) slat (nsec): min=33324k, max=33324k, avg=33324388.00, stdev= 0.00 clat (nsec): min=435517k, max=435517k, avg=435517012.00, stdev= 0.00 lat (nsec): min=468846k, max=468846k, avg=468846085.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.92%, 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=83.3MiB/s (87.4MB/s), 83.3MiB/s-83.3MiB/s (87.4MB/s-87.4MB/s), io=40.0MiB (41.9MB), run=480-480msec debug=super ioctl neterror warning dlmtrace error emerg ha rpctrace vfstrace config console lfsck