== sanity test 398c: run fio to test AIO ================= 09:07:41 (1774530461) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.136013 s, 308 MB/s osc.lustre-OST0000-osc-ffff9a4b02f3e000.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=122421: Thu Mar 26 09:08:20 2026 write: IOPS=71, BW=287KiB/s (294kB/s)(10.0MiB/35694msec); 0 zone resets slat (usec): min=21, max=2249, avg=134.89, stdev=132.25 clat (msec): min=17, max=425, avg=222.86, stdev=54.61 lat (msec): min=17, max=425, avg=223.00, stdev=54.62 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 194], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 230], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 376], 99.50th=[ 397], 99.90th=[ 409], 99.95th=[ 414], | 99.99th=[ 426] bw ( KiB/s): min= 168, max= 470, per=24.88%, avg=284.83, stdev=61.94, samples=71 iops : min= 42, max= 117, avg=71.01, stdev=15.52, samples=71 lat (msec) : 20=0.04%, 50=0.16%, 100=0.43%, 250=73.59%, 500=25.78% cpu : usr=0.17%, sys=0.81%, ctx=1713, 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=122422: Thu Mar 26 09:08:20 2026 write: IOPS=71, BW=286KiB/s (293kB/s)(10.0MiB/35743msec); 0 zone resets slat (usec): min=20, max=4290, avg=131.25, stdev=148.16 clat (msec): min=104, max=423, avg=223.13, stdev=53.54 lat (msec): min=105, max=423, avg=223.26, stdev=53.55 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 180], | 30.00th=[ 197], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 259], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 384], 99.50th=[ 401], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 422] bw ( KiB/s): min= 144, max= 432, per=24.89%, avg=285.04, stdev=57.94, samples=71 iops : min= 36, max= 108, avg=71.07, stdev=14.54, samples=71 lat (msec) : 250=74.49%, 500=25.51% cpu : usr=0.18%, sys=0.83%, ctx=1761, 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=122423: Thu Mar 26 09:08:20 2026 write: IOPS=71, BW=287KiB/s (294kB/s)(10.0MiB/35707msec); 0 zone resets slat (usec): min=21, max=5296, avg=133.55, stdev=162.11 clat (msec): min=102, max=443, avg=222.90, stdev=53.97 lat (msec): min=103, max=444, avg=223.03, stdev=53.98 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 146], 10.00th=[ 159], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 384], 99.50th=[ 409], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 443] bw ( KiB/s): min= 168, max= 424, per=24.89%, avg=285.03, stdev=59.40, samples=71 iops : min= 42, max= 106, avg=71.07, stdev=14.90, samples=71 lat (msec) : 250=74.53%, 500=25.47% cpu : usr=0.15%, sys=0.89%, ctx=1781, 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=122424: Thu Mar 26 09:08:20 2026 write: IOPS=71, BW=287KiB/s (293kB/s)(10.0MiB/35732msec); 0 zone resets slat (usec): min=21, max=3606, avg=135.87, stdev=149.96 clat (msec): min=112, max=429, avg=223.04, stdev=53.83 lat (msec): min=112, max=429, avg=223.18, stdev=53.84 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 194], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 264], 90.00th=[ 292], 95.00th=[ 326], | 99.00th=[ 384], 99.50th=[ 401], 99.90th=[ 422], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 160, max= 448, per=24.89%, avg=285.04, stdev=59.92, samples=71 iops : min= 40, max= 112, avg=71.07, stdev=15.05, samples=71 lat (msec) : 250=73.63%, 500=26.37% cpu : usr=0.13%, sys=0.90%, ctx=1844, 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=1146KiB/s (1173kB/s), 286KiB/s-287KiB/s (293kB/s-294kB/s), io=40.0MiB (41.9MB), run=35694-35743msec 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=122438: Thu Mar 26 09:08:49 2026 read: IOPS=48, BW=195KiB/s (200kB/s)(5048KiB/25843msec) slat (usec): min=866, max=16702, avg=2770.79, stdev=1887.33 clat (msec): min=12, max=265, avg=108.90, stdev=33.85 lat (msec): min=13, max=269, avg=111.68, stdev=34.63 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 68], 10.00th=[ 72], 20.00th=[ 82], | 30.00th=[ 89], 40.00th=[ 95], 50.00th=[ 102], 60.00th=[ 110], | 70.00th=[ 122], 80.00th=[ 134], 90.00th=[ 155], 95.00th=[ 178], | 99.00th=[ 215], 99.50th=[ 236], 99.90th=[ 243], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 56, max= 360, per=25.16%, avg=195.25, stdev=61.09, samples=51 iops : min= 14, max= 90, avg=48.63, stdev=15.29, samples=51 write: IOPS=50, BW=201KiB/s (206kB/s)(5192KiB/25843msec); 0 zone resets slat (usec): min=21, max=5552, avg=142.40, stdev=263.89 clat (msec): min=59, max=458, avg=209.45, stdev=74.40 lat (msec): min=59, max=459, avg=209.59, stdev=74.42 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 108], 10.00th=[ 126], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 180], 50.00th=[ 197], 60.00th=[ 213], | 70.00th=[ 236], 80.00th=[ 268], 90.00th=[ 317], 95.00th=[ 351], | 99.00th=[ 426], 99.50th=[ 439], 99.90th=[ 451], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 72, max= 320, per=24.78%, avg=200.24, stdev=54.44, samples=51 iops : min= 18, max= 80, avg=49.88, stdev=13.71, samples=51 lat (msec) : 20=0.04%, 50=0.27%, 100=25.00%, 250=62.23%, 500=12.46% cpu : usr=0.27%, sys=1.71%, ctx=2686, 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=122439: Thu Mar 26 09:08:49 2026 read: IOPS=48, BW=193KiB/s (198kB/s)(4976KiB/25783msec) slat (usec): min=48, max=16041, avg=2660.20, stdev=1762.12 clat (msec): min=3, max=252, avg=107.60, stdev=33.81 lat (msec): min=3, max=256, avg=110.27, stdev=34.55 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 67], 10.00th=[ 72], 20.00th=[ 82], | 30.00th=[ 90], 40.00th=[ 95], 50.00th=[ 101], 60.00th=[ 110], | 70.00th=[ 121], 80.00th=[ 129], 90.00th=[ 153], 95.00th=[ 174], | 99.00th=[ 215], 99.50th=[ 230], 99.90th=[ 239], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 48, max= 320, per=24.73%, avg=191.90, stdev=59.79, samples=51 iops : min= 12, max= 80, avg=47.80, stdev=14.99, samples=51 write: IOPS=51, BW=204KiB/s (209kB/s)(5264KiB/25783msec); 0 zone resets slat (usec): min=21, max=7595, avg=151.10, stdev=312.20 clat (msec): min=15, max=476, avg=208.87, stdev=76.96 lat (msec): min=15, max=476, avg=209.02, stdev=77.01 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 108], 10.00th=[ 123], 20.00th=[ 148], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 194], 60.00th=[ 213], | 70.00th=[ 232], 80.00th=[ 264], 90.00th=[ 317], 95.00th=[ 368], | 99.00th=[ 430], 99.50th=[ 439], 99.90th=[ 468], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 88, max= 346, per=25.18%, avg=203.49, stdev=56.47, samples=51 iops : min= 22, max= 86, avg=50.69, stdev=14.20, samples=51 lat (msec) : 4=0.08%, 10=0.04%, 20=0.12%, 50=0.90%, 100=24.34% lat (msec) : 250=62.50%, 500=12.03% cpu : usr=0.24%, sys=1.72%, ctx=2711, 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=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=122440: Thu Mar 26 09:08:49 2026 read: IOPS=48, BW=193KiB/s (197kB/s)(4984KiB/25843msec) slat (usec): min=851, max=18148, avg=2720.96, stdev=1805.47 clat (usec): min=1878, max=243044, avg=106343.60, stdev=33087.43 lat (msec): min=5, max=247, avg=109.07, stdev=33.79 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 82], | 30.00th=[ 89], 40.00th=[ 94], 50.00th=[ 101], 60.00th=[ 108], | 70.00th=[ 118], 80.00th=[ 130], 90.00th=[ 150], 95.00th=[ 169], | 99.00th=[ 213], 99.50th=[ 232], 99.90th=[ 241], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 63, max= 336, per=24.74%, avg=191.98, stdev=63.09, samples=51 iops : min= 15, max= 84, avg=47.80, stdev=15.84, samples=51 write: IOPS=50, BW=203KiB/s (208kB/s)(5256KiB/25843msec); 0 zone resets slat (usec): min=22, max=6674, avg=135.13, stdev=232.79 clat (msec): min=54, max=471, avg=210.84, stdev=78.43 lat (msec): min=54, max=472, avg=210.98, stdev=78.45 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 106], 10.00th=[ 123], 20.00th=[ 146], | 30.00th=[ 165], 40.00th=[ 180], 50.00th=[ 197], 60.00th=[ 215], | 70.00th=[ 239], 80.00th=[ 271], 90.00th=[ 321], 95.00th=[ 372], | 99.00th=[ 426], 99.50th=[ 443], 99.90th=[ 468], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 103, max= 328, per=24.87%, avg=200.94, stdev=57.40, samples=51 iops : min= 25, max= 82, avg=50.06, stdev=14.44, samples=51 lat (msec) : 2=0.04%, 4=0.04%, 20=0.12%, 50=0.43%, 100=25.70% lat (msec) : 250=60.35%, 500=13.32% cpu : usr=0.26%, sys=1.71%, ctx=2708, 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=122441: Thu Mar 26 09:08:49 2026 read: IOPS=48, BW=196KiB/s (200kB/s)(5060KiB/25843msec) slat (usec): min=872, max=15978, avg=2655.85, stdev=1808.97 clat (msec): min=2, max=248, avg=108.43, stdev=34.32 lat (msec): min=3, max=250, avg=111.09, stdev=35.01 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 71], 20.00th=[ 81], | 30.00th=[ 89], 40.00th=[ 95], 50.00th=[ 103], 60.00th=[ 110], | 70.00th=[ 122], 80.00th=[ 134], 90.00th=[ 157], 95.00th=[ 174], | 99.00th=[ 215], 99.50th=[ 236], 99.90th=[ 241], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 79, max= 352, per=25.24%, avg=195.84, stdev=62.42, samples=51 iops : min= 19, max= 88, avg=48.78, stdev=15.75, samples=51 write: IOPS=50, BW=200KiB/s (205kB/s)(5180KiB/25843msec); 0 zone resets slat (usec): min=25, max=3638, avg=142.53, stdev=208.81 clat (msec): min=60, max=466, avg=210.28, stdev=75.62 lat (msec): min=60, max=466, avg=210.42, stdev=75.64 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 111], 10.00th=[ 128], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 180], 50.00th=[ 197], 60.00th=[ 215], | 70.00th=[ 239], 80.00th=[ 264], 90.00th=[ 317], 95.00th=[ 363], | 99.00th=[ 439], 99.50th=[ 443], 99.90th=[ 456], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 88, max= 327, per=24.71%, avg=199.65, stdev=60.52, samples=51 iops : min= 22, max= 81, avg=49.73, stdev=15.15, samples=51 lat (msec) : 4=0.04%, 10=0.08%, 20=0.04%, 50=0.31%, 100=24.53% lat (msec) : 250=62.54%, 500=12.46% cpu : usr=0.26%, sys=1.66%, ctx=2738, 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=777KiB/s (795kB/s), 193KiB/s-196KiB/s (197kB/s-200kB/s), io=19.6MiB (20.5MB), run=25783-25843msec WRITE: bw=808KiB/s (828kB/s), 200KiB/s-204KiB/s (205kB/s-209kB/s), io=20.4MiB (21.4MB), run=25783-25843msec 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=122449: Thu Mar 26 09:08:53 2026 read: IOPS=6, BW=278MiB/s (291MB/s)(40.0MiB/144msec) slat (nsec): min=15584k, max=15584k, avg=15584024.00, stdev= 0.00 clat (nsec): min=123267k, max=123267k, avg=123267468.00, stdev= 0.00 lat (nsec): min=138857k, max=138857k, avg=138856655.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 124], | 30.00th=[ 124], 40.00th=[ 124], 50.00th=[ 124], 60.00th=[ 124], | 70.00th=[ 124], 80.00th=[ 124], 90.00th=[ 124], 95.00th=[ 124], | 99.00th=[ 124], 99.50th=[ 124], 99.90th=[ 124], 99.95th=[ 124], | 99.99th=[ 124] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=10.49%, ctx=3, 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=278MiB/s (291MB/s), 278MiB/s-278MiB/s (291MB/s-291MB/s), io=40.0MiB (41.9MB), run=144-144msec debug=super ioctl neterror warning dlmtrace error emerg ha rpctrace vfstrace config console lfsck