== sanity test 398c: run fio to test AIO ================= 11:50:49 (1789055449) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.535555 s, 78.3 MB/s osc.lustre-OST0000-osc-ffff9bf46aa60000.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=180563: Thu Sep 10 11:51:34 2026 write: IOPS=75, BW=301KiB/s (308kB/s)(10.0MiB/33999msec); 0 zone resets slat (usec): min=28, max=18274, avg=322.61, stdev=1093.38 clat (msec): min=35, max=438, avg=211.96, stdev=62.43 lat (msec): min=35, max=438, avg=212.29, stdev=62.43 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 120], 10.00th=[ 133], 20.00th=[ 157], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 243], 80.00th=[ 259], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 183, max= 470, per=25.10%, avg=300.73, stdev=73.78, samples=67 iops : min= 45, max= 117, avg=74.78, stdev=18.50, samples=67 lat (msec) : 50=0.23%, 100=0.94%, 250=73.48%, 500=25.35% cpu : usr=0.20%, sys=1.11%, ctx=3019, 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=180564: Thu Sep 10 11:51:34 2026 write: IOPS=74, BW=300KiB/s (307kB/s)(10.0MiB/34185msec); 0 zone resets slat (usec): min=23, max=16913, avg=252.05, stdev=907.15 clat (msec): min=27, max=411, avg=212.23, stdev=59.64 lat (msec): min=28, max=411, avg=212.48, stdev=59.66 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 161], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 241], 80.00th=[ 268], 90.00th=[ 292], 95.00th=[ 326], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 151, max= 512, per=24.95%, avg=298.88, stdev=73.78, samples=67 iops : min= 37, max= 128, avg=74.31, stdev=18.50, samples=67 lat (msec) : 50=0.08%, 100=0.59%, 250=73.09%, 500=26.25% cpu : usr=0.13%, sys=0.75%, ctx=2216, 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=180565: Thu Sep 10 11:51:34 2026 write: IOPS=75, BW=300KiB/s (307kB/s)(10.0MiB/34122msec); 0 zone resets slat (usec): min=28, max=11607, avg=224.48, stdev=783.98 clat (msec): min=33, max=407, avg=212.62, stdev=61.07 lat (msec): min=33, max=408, avg=212.85, stdev=61.10 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 161], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 236], 80.00th=[ 266], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 135, max= 501, per=24.96%, avg=299.04, stdev=80.74, samples=67 iops : min= 33, max= 125, avg=74.34, stdev=20.26, samples=67 lat (msec) : 50=0.04%, 100=1.45%, 250=73.01%, 500=25.51% cpu : usr=0.14%, sys=0.79%, ctx=1873, 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=180566: Thu Sep 10 11:51:34 2026 write: IOPS=74, BW=300KiB/s (307kB/s)(10.0MiB/34187msec); 0 zone resets slat (usec): min=30, max=30700, avg=300.65, stdev=1168.45 clat (msec): min=23, max=405, avg=212.12, stdev=59.63 lat (msec): min=23, max=405, avg=212.42, stdev=59.64 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 121], 10.00th=[ 136], 20.00th=[ 159], | 30.00th=[ 180], 40.00th=[ 197], 50.00th=[ 207], 60.00th=[ 220], | 70.00th=[ 236], 80.00th=[ 262], 90.00th=[ 296], 95.00th=[ 326], | 99.00th=[ 355], 99.50th=[ 363], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 405] bw ( KiB/s): min= 174, max= 496, per=24.90%, avg=298.28, stdev=75.82, samples=67 iops : min= 43, max= 124, avg=74.15, stdev=19.02, samples=67 lat (msec) : 50=0.04%, 100=0.59%, 250=75.23%, 500=24.14% cpu : usr=0.18%, sys=0.89%, ctx=2448, 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=1198KiB/s (1227kB/s), 300KiB/s-301KiB/s (307kB/s-308kB/s), io=40.0MiB (41.9MB), run=33999-34187msec 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=180581: Thu Sep 10 11:52:21 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5048KiB/35638msec) slat (usec): min=52, max=77750, avg=15334.09, stdev=8838.66 clat (msec): min=23, max=432, avg=214.00, stdev=60.40 lat (msec): min=39, max=449, avg=229.34, stdev=62.64 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 129], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 388], 99.50th=[ 409], 99.90th=[ 422], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 79, max= 263, per=25.50%, avg=141.27, stdev=34.84, samples=70 iops : min= 19, max= 65, avg=34.77, stdev= 8.80, samples=70 write: IOPS=36, BW=146KiB/s (149kB/s)(5192KiB/35638msec); 0 zone resets slat (usec): min=33, max=7935, avg=265.03, stdev=616.89 clat (msec): min=65, max=431, avg=215.41, stdev=52.95 lat (msec): min=66, max=431, avg=215.67, stdev=52.95 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 130], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 401], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 40, max= 271, per=25.31%, avg=145.76, stdev=39.07, samples=70 iops : min= 10, max= 67, avg=35.90, stdev= 9.76, samples=70 lat (msec) : 50=0.20%, 100=1.13%, 250=75.23%, 500=23.44% cpu : usr=0.27%, sys=1.85%, ctx=4341, 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=180582: Thu Sep 10 11:52:21 2026 read: IOPS=34, BW=138KiB/s (141kB/s)(4976KiB/36091msec) slat (usec): min=2735, max=75738, avg=15683.04, stdev=9246.22 clat (msec): min=35, max=421, avg=214.39, stdev=57.03 lat (msec): min=68, max=450, avg=230.08, stdev=59.12 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 384], 99.50th=[ 401], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 71, max= 215, per=24.71%, avg=136.90, stdev=33.12, samples=71 iops : min= 17, max= 53, avg=33.68, stdev= 8.34, samples=71 write: IOPS=36, BW=146KiB/s (149kB/s)(5264KiB/36091msec); 0 zone resets slat (usec): min=29, max=23834, avg=326.19, stdev=1186.70 clat (msec): min=33, max=440, avg=218.90, stdev=56.44 lat (msec): min=33, max=441, avg=219.23, stdev=56.46 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 134], 10.00th=[ 150], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 230], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 435], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 63, max= 303, per=25.24%, avg=145.37, stdev=42.44, samples=71 iops : min= 15, max= 75, avg=35.77, stdev=10.60, samples=71 lat (msec) : 50=0.08%, 100=0.39%, 250=74.84%, 500=24.69% cpu : usr=0.26%, sys=1.94%, ctx=4542, 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=180583: Thu Sep 10 11:52:21 2026 read: IOPS=34, BW=138KiB/s (141kB/s)(4984KiB/36180msec) slat (msec): min=3, max=103, avg=15.53, stdev= 9.06 clat (msec): min=4, max=472, avg=212.74, stdev=60.39 lat (msec): min=13, max=479, avg=228.27, stdev=62.60 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 125], 10.00th=[ 142], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 393], 99.50th=[ 426], 99.90th=[ 443], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 63, max= 287, per=24.71%, avg=136.87, stdev=38.87, samples=71 iops : min= 15, max= 71, avg=33.68, stdev= 9.71, samples=71 write: IOPS=36, BW=145KiB/s (149kB/s)(5256KiB/36180msec); 0 zone resets slat (usec): min=35, max=21011, avg=307.01, stdev=1127.89 clat (msec): min=94, max=492, avg=221.11, stdev=53.97 lat (msec): min=94, max=492, avg=221.42, stdev=54.05 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 140], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 245], 80.00th=[ 262], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 79, max= 224, per=24.94%, avg=143.63, stdev=37.37, samples=71 iops : min= 19, max= 56, avg=35.37, stdev= 9.39, samples=71 lat (msec) : 10=0.04%, 50=0.04%, 100=0.66%, 250=74.49%, 500=24.77% cpu : usr=0.25%, sys=1.83%, ctx=4321, 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=180584: Thu Sep 10 11:52:21 2026 read: IOPS=34, BW=140KiB/s (143kB/s)(5060KiB/36215msec) slat (msec): min=3, max=125, avg=15.83, stdev= 9.34 clat (msec): min=18, max=464, avg=214.40, stdev=59.87 lat (msec): min=33, max=478, avg=230.24, stdev=61.97 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 129], 10.00th=[ 144], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 211], 60.00th=[ 228], | 70.00th=[ 243], 80.00th=[ 262], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 376], 99.50th=[ 409], 99.90th=[ 460], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 63, max= 215, per=24.96%, avg=138.27, stdev=30.70, samples=71 iops : min= 15, max= 53, avg=34.03, stdev= 7.70, samples=71 write: IOPS=35, BW=143KiB/s (146kB/s)(5180KiB/36215msec); 0 zone resets slat (usec): min=32, max=18977, avg=281.94, stdev=956.19 clat (msec): min=33, max=480, avg=219.29, stdev=56.68 lat (msec): min=34, max=481, avg=219.58, stdev=56.69 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 138], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 201], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 268], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 63, max= 295, per=24.48%, avg=140.99, stdev=41.45, samples=71 iops : min= 15, max= 73, avg=34.70, stdev=10.37, samples=71 lat (msec) : 20=0.04%, 50=0.27%, 100=1.02%, 250=72.50%, 500=26.17% cpu : usr=0.33%, sys=1.94%, ctx=4308, 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=554KiB/s (567kB/s), 138KiB/s-142KiB/s (141kB/s-145kB/s), io=19.6MiB (20.5MB), run=35638-36215msec WRITE: bw=577KiB/s (591kB/s), 143KiB/s-146KiB/s (146kB/s-149kB/s), io=20.4MiB (21.4MB), run=35638-36215msec 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=180594: Thu Sep 10 11:52:31 2026 read: IOPS=2, BW=86.0MiB/s (90.2MB/s)(40.0MiB/465msec) slat (nsec): min=25095k, max=25095k, avg=25095305.00, stdev= 0.00 clat (nsec): min=413130k, max=413130k, avg=413130029.00, stdev= 0.00 lat (nsec): min=438229k, max=438229k, avg=438229475.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.02%, 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=86.0MiB/s (90.2MB/s), 86.0MiB/s-86.0MiB/s (90.2MB/s-90.2MB/s), io=40.0MiB (41.9MB), run=465-465msec 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