== sanity test 398c: run fio to test AIO ================= 17:17:22 (1788470242) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.582687 s, 72.0 MB/s osc.lustre-OST0000-osc-ffff8f512116d000.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=179303: Thu Sep 3 17:18:07 2026 write: IOPS=73, BW=294KiB/s (301kB/s)(10.0MiB/34835msec); 0 zone resets slat (usec): min=22, max=22737, avg=254.76, stdev=1268.79 clat (msec): min=43, max=554, avg=217.18, stdev=86.97 lat (msec): min=43, max=554, avg=217.44, stdev=87.01 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 133], | 30.00th=[ 161], 40.00th=[ 188], 50.00th=[ 209], 60.00th=[ 228], | 70.00th=[ 257], 80.00th=[ 292], 90.00th=[ 326], 95.00th=[ 376], | 99.00th=[ 439], 99.50th=[ 550], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 126, max= 629, per=25.10%, avg=294.40, stdev=109.42, samples=68 iops : min= 31, max= 157, avg=73.10, stdev=27.44, samples=68 lat (msec) : 50=0.08%, 100=4.34%, 250=64.06%, 500=30.94%, 750=0.59% cpu : usr=0.18%, sys=0.89%, ctx=1813, 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=179304: Thu Sep 3 17:18:07 2026 write: IOPS=73, BW=294KiB/s (301kB/s)(10.0MiB/34847msec); 0 zone resets slat (usec): min=21, max=20608, avg=194.32, stdev=835.82 clat (msec): min=13, max=535, avg=217.42, stdev=85.39 lat (msec): min=13, max=535, avg=217.61, stdev=85.38 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 102], 10.00th=[ 116], 20.00th=[ 138], | 30.00th=[ 163], 40.00th=[ 182], 50.00th=[ 207], 60.00th=[ 230], | 70.00th=[ 257], 80.00th=[ 292], 90.00th=[ 334], 95.00th=[ 380], | 99.00th=[ 443], 99.50th=[ 456], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 126, max= 581, per=25.04%, avg=293.69, stdev=103.59, samples=68 iops : min= 31, max= 145, avg=72.97, stdev=25.92, samples=68 lat (msec) : 20=0.04%, 100=4.49%, 250=63.98%, 500=31.21%, 750=0.27% cpu : usr=0.14%, sys=0.64%, ctx=1710, 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=179305: Thu Sep 3 17:18:07 2026 write: IOPS=73, BW=293KiB/s (300kB/s)(10.0MiB/34919msec); 0 zone resets slat (usec): min=21, max=132422, avg=218.25, stdev=2715.96 clat (msec): min=21, max=549, avg=216.60, stdev=86.23 lat (msec): min=21, max=549, avg=216.82, stdev=86.30 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 101], 10.00th=[ 116], 20.00th=[ 134], | 30.00th=[ 165], 40.00th=[ 188], 50.00th=[ 205], 60.00th=[ 232], | 70.00th=[ 253], 80.00th=[ 288], 90.00th=[ 334], 95.00th=[ 372], | 99.00th=[ 439], 99.50th=[ 447], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 108, max= 637, per=24.79%, avg=290.78, stdev=111.74, samples=69 iops : min= 27, max= 159, avg=72.25, stdev=27.98, samples=69 lat (msec) : 50=0.55%, 100=4.69%, 250=63.83%, 500=30.59%, 750=0.35% cpu : usr=0.16%, sys=0.93%, ctx=1231, 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=179306: Thu Sep 3 17:18:07 2026 write: IOPS=73, BW=293KiB/s (300kB/s)(10.0MiB/34910msec); 0 zone resets slat (usec): min=22, max=91237, avg=348.37, stdev=2671.29 clat (msec): min=37, max=535, avg=216.49, stdev=84.13 lat (msec): min=37, max=536, avg=216.84, stdev=84.23 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 95], 10.00th=[ 121], 20.00th=[ 140], | 30.00th=[ 159], 40.00th=[ 184], 50.00th=[ 209], 60.00th=[ 230], | 70.00th=[ 257], 80.00th=[ 288], 90.00th=[ 334], 95.00th=[ 363], | 99.00th=[ 451], 99.50th=[ 506], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 535] bw ( KiB/s): min= 127, max= 637, per=24.93%, avg=292.38, stdev=107.50, samples=69 iops : min= 31, max= 159, avg=72.64, stdev=26.94, samples=69 lat (msec) : 50=0.08%, 100=5.31%, 250=62.54%, 500=31.56%, 750=0.51% cpu : usr=0.17%, sys=0.92%, ctx=2336, 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=1173KiB/s (1201kB/s), 293KiB/s-294KiB/s (300kB/s-301kB/s), io=40.0MiB (41.9MB), run=34835-34919msec 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=179321: Thu Sep 3 17:18:49 2026 read: IOPS=36, BW=147KiB/s (150kB/s)(5048KiB/34384msec) slat (usec): min=2120, max=80600, avg=14993.74, stdev=9863.96 clat (msec): min=55, max=478, avg=201.34, stdev=68.61 lat (msec): min=72, max=493, avg=216.34, stdev=72.32 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 100], 10.00th=[ 115], 20.00th=[ 140], | 30.00th=[ 157], 40.00th=[ 176], 50.00th=[ 194], 60.00th=[ 215], | 70.00th=[ 236], 80.00th=[ 264], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 384], 99.50th=[ 414], 99.90th=[ 439], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 47, max= 304, per=25.31%, avg=145.53, stdev=53.28, samples=68 iops : min= 11, max= 76, avg=35.96, stdev=13.44, samples=68 write: IOPS=37, BW=151KiB/s (155kB/s)(5192KiB/34384msec); 0 zone resets slat (usec): min=31, max=29306, avg=247.84, stdev=1256.41 clat (msec): min=74, max=444, avg=211.38, stdev=69.80 lat (msec): min=74, max=444, avg=211.63, stdev=69.79 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 109], 10.00th=[ 126], 20.00th=[ 150], | 30.00th=[ 169], 40.00th=[ 188], 50.00th=[ 205], 60.00th=[ 224], | 70.00th=[ 245], 80.00th=[ 268], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 414], 99.50th=[ 430], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 79, max= 264, per=25.14%, avg=150.32, stdev=43.45, samples=68 iops : min= 19, max= 66, avg=37.18, stdev=10.97, samples=68 lat (msec) : 100=4.22%, 250=69.61%, 500=26.17% cpu : usr=0.27%, sys=1.58%, ctx=4390, 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=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=179322: Thu Sep 3 17:18:49 2026 read: IOPS=35, BW=143KiB/s (147kB/s)(4976KiB/34690msec) slat (usec): min=1929, max=73174, avg=15287.62, stdev=9930.11 clat (msec): min=41, max=482, avg=206.15, stdev=71.47 lat (msec): min=64, max=519, avg=221.44, stdev=75.17 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 103], 10.00th=[ 120], 20.00th=[ 142], | 30.00th=[ 161], 40.00th=[ 180], 50.00th=[ 197], 60.00th=[ 218], | 70.00th=[ 243], 80.00th=[ 268], 90.00th=[ 309], 95.00th=[ 334], | 99.00th=[ 388], 99.50th=[ 409], 99.90th=[ 447], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 63, max= 280, per=24.86%, avg=142.96, stdev=49.87, samples=68 iops : min= 15, max= 70, avg=35.34, stdev=12.58, samples=68 write: IOPS=37, BW=152KiB/s (155kB/s)(5264KiB/34690msec); 0 zone resets slat (usec): min=24, max=76046, avg=234.82, stdev=2174.42 clat (msec): min=50, max=449, avg=210.34, stdev=70.62 lat (msec): min=50, max=449, avg=210.58, stdev=70.55 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 107], 10.00th=[ 124], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 186], 50.00th=[ 205], 60.00th=[ 224], | 70.00th=[ 243], 80.00th=[ 264], 90.00th=[ 305], 95.00th=[ 342], | 99.00th=[ 405], 99.50th=[ 414], 99.90th=[ 447], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 63, max= 290, per=25.38%, avg=151.76, stdev=50.58, samples=68 iops : min= 15, max= 72, avg=37.53, stdev=12.76, samples=68 lat (msec) : 50=0.04%, 100=3.91%, 250=69.92%, 500=26.13% cpu : usr=0.20%, sys=1.51%, ctx=4348, 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=179323: Thu Sep 3 17:18:49 2026 read: IOPS=36, BW=144KiB/s (148kB/s)(4984KiB/34519msec) slat (usec): min=22, max=75775, avg=14837.51, stdev=9919.89 clat (msec): min=58, max=480, avg=204.55, stdev=72.20 lat (msec): min=66, max=510, avg=219.39, stdev=76.25 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 103], 10.00th=[ 120], 20.00th=[ 142], | 30.00th=[ 161], 40.00th=[ 180], 50.00th=[ 197], 60.00th=[ 211], | 70.00th=[ 234], 80.00th=[ 266], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 405], 99.50th=[ 418], 99.90th=[ 464], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 47, max= 312, per=25.06%, avg=144.10, stdev=52.41, samples=68 iops : min= 11, max= 78, avg=35.60, stdev=13.21, samples=68 write: IOPS=38, BW=152KiB/s (156kB/s)(5256KiB/34519msec); 0 zone resets slat (usec): min=23, max=50166, avg=262.61, stdev=1639.59 clat (msec): min=73, max=482, avg=211.60, stdev=71.18 lat (msec): min=75, max=482, avg=211.87, stdev=71.25 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 108], 10.00th=[ 123], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 188], 50.00th=[ 205], 60.00th=[ 224], | 70.00th=[ 245], 80.00th=[ 271], 90.00th=[ 309], 95.00th=[ 342], | 99.00th=[ 397], 99.50th=[ 414], 99.90th=[ 451], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 55, max= 288, per=25.35%, avg=151.62, stdev=51.01, samples=68 iops : min= 13, max= 72, avg=37.49, stdev=12.87, samples=68 lat (msec) : 100=4.02%, 250=69.53%, 500=26.45% cpu : usr=0.28%, sys=1.50%, ctx=4382, 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=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=179324: Thu Sep 3 17:18:49 2026 read: IOPS=36, BW=145KiB/s (148kB/s)(5060KiB/34895msec) slat (usec): min=76, max=131955, avg=15231.99, stdev=11282.05 clat (msec): min=15, max=539, avg=208.08, stdev=73.14 lat (msec): min=25, max=549, avg=223.32, stdev=77.01 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 102], 10.00th=[ 122], 20.00th=[ 148], | 30.00th=[ 167], 40.00th=[ 184], 50.00th=[ 203], 60.00th=[ 220], | 70.00th=[ 239], 80.00th=[ 264], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 405], 99.50th=[ 426], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 71, max= 272, per=25.10%, avg=144.32, stdev=42.69, samples=69 iops : min= 17, max= 68, avg=35.67, stdev=10.79, samples=69 write: IOPS=37, BW=148KiB/s (152kB/s)(5180KiB/34895msec); 0 zone resets slat (usec): min=26, max=33491, avg=314.68, stdev=1557.80 clat (msec): min=44, max=569, avg=210.81, stdev=73.71 lat (msec): min=45, max=569, avg=211.13, stdev=73.69 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 109], 10.00th=[ 124], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 186], 50.00th=[ 201], 60.00th=[ 222], | 70.00th=[ 241], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 338], | 99.00th=[ 422], 99.50th=[ 527], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 71, max= 272, per=24.63%, avg=147.30, stdev=48.77, samples=69 iops : min= 17, max= 68, avg=36.39, stdev=12.27, samples=69 lat (msec) : 20=0.08%, 50=0.43%, 100=3.40%, 250=70.51%, 500=25.12% lat (msec) : 750=0.47% cpu : usr=0.24%, sys=1.43%, ctx=3995, 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=575KiB/s (589kB/s), 143KiB/s-147KiB/s (147kB/s-150kB/s), io=19.6MiB (20.5MB), run=34384-34895msec WRITE: bw=599KiB/s (613kB/s), 148KiB/s-152KiB/s (152kB/s-156kB/s), io=20.4MiB (21.4MB), run=34384-34895msec 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=179334: Thu Sep 3 17:19:01 2026 read: IOPS=1, BW=58.8MiB/s (61.7MB/s)(40.0MiB/680msec) slat (nsec): min=54922k, max=54922k, avg=54921965.00, stdev= 0.00 clat (nsec): min=584968k, max=584968k, avg=584967891.00, stdev= 0.00 lat (nsec): min=639896k, max=639896k, avg=639895824.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] lat (msec) : 750=100.00% cpu : usr=0.29%, sys=2.06%, ctx=7, 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=58.8MiB/s (61.7MB/s), 58.8MiB/s-58.8MiB/s (61.7MB/s-61.7MB/s), io=40.0MiB (41.9MB), run=680-680msec 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