== sanity test 398c: run fio to test AIO ================= 22:30:42 (1789785042) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.583253 s, 71.9 MB/s osc.lustre-OST0000-osc-ffff8a5546860000.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=180758: Fri Sep 18 22:31:23 2026 write: IOPS=87, BW=350KiB/s (359kB/s)(10.0MiB/29231msec); 0 zone resets slat (usec): min=24, max=21643, avg=248.54, stdev=861.91 clat (msec): min=34, max=297, avg=181.91, stdev=37.95 lat (msec): min=34, max=297, avg=182.16, stdev=37.95 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 230], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 288], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 254, max= 499, per=24.95%, avg=349.26, stdev=60.49, samples=58 iops : min= 63, max= 124, avg=86.91, stdev=15.13, samples=58 lat (msec) : 50=0.12%, 100=2.07%, 250=93.75%, 500=4.06% cpu : usr=0.16%, sys=0.88%, ctx=2133, 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=180759: Fri Sep 18 22:31:23 2026 write: IOPS=87, BW=350KiB/s (359kB/s)(10.0MiB/29239msec); 0 zone resets slat (usec): min=26, max=11950, avg=247.19, stdev=757.63 clat (msec): min=31, max=293, avg=181.59, stdev=37.37 lat (msec): min=31, max=293, avg=181.84, stdev=37.38 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 234], 95.00th=[ 243], | 99.00th=[ 268], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 240, max= 495, per=24.95%, avg=349.36, stdev=56.08, samples=58 iops : min= 60, max= 123, avg=86.95, stdev=14.01, samples=58 lat (msec) : 50=0.04%, 100=1.99%, 250=94.49%, 500=3.48% cpu : usr=0.19%, sys=0.97%, ctx=2344, 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=180760: Fri Sep 18 22:31:23 2026 write: IOPS=87, BW=350KiB/s (359kB/s)(10.0MiB/29237msec); 0 zone resets slat (usec): min=28, max=9397, avg=245.33, stdev=687.89 clat (msec): min=42, max=285, avg=181.50, stdev=36.68 lat (msec): min=43, max=285, avg=181.75, stdev=36.68 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 232], 95.00th=[ 243], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 254, max= 472, per=24.95%, avg=349.36, stdev=59.00, samples=58 iops : min= 63, max= 118, avg=86.97, stdev=14.77, samples=58 lat (msec) : 50=0.04%, 100=1.95%, 250=95.23%, 500=2.77% cpu : usr=0.20%, sys=1.01%, ctx=2600, 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=180761: Fri Sep 18 22:31:23 2026 write: IOPS=88, BW=352KiB/s (361kB/s)(10.0MiB/29065msec); 0 zone resets slat (usec): min=23, max=24571, avg=248.82, stdev=857.79 clat (msec): min=46, max=327, avg=181.27, stdev=38.28 lat (msec): min=46, max=327, avg=181.52, stdev=38.25 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 213], 90.00th=[ 230], 95.00th=[ 243], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 330] bw ( KiB/s): min= 253, max= 544, per=25.09%, avg=351.28, stdev=59.04, samples=57 iops : min= 63, max= 136, avg=87.44, stdev=14.79, samples=57 lat (msec) : 50=0.16%, 100=1.80%, 250=94.80%, 500=3.24% cpu : usr=0.18%, sys=0.91%, ctx=2242, 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=1401KiB/s (1434kB/s), 350KiB/s-352KiB/s (359kB/s-361kB/s), io=40.0MiB (41.9MB), run=29065-29239msec 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=180776: Fri Sep 18 22:32:02 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5048KiB/31008msec) slat (usec): min=2787, max=60920, avg=13615.75, stdev=7279.38 clat (msec): min=25, max=388, avg=181.76, stdev=45.16 lat (msec): min=34, max=408, avg=195.39, stdev=46.98 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 123], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 241], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 347], 99.90th=[ 376], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 87, max= 264, per=25.10%, avg=162.11, stdev=42.54, samples=61 iops : min= 21, max= 66, avg=40.07, stdev=10.79, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5192KiB/31008msec); 0 zone resets slat (usec): min=32, max=19621, avg=255.59, stdev=890.98 clat (msec): min=27, max=358, avg=189.02, stdev=44.43 lat (msec): min=27, max=358, avg=189.28, stdev=44.50 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 79, max= 231, per=24.89%, avg=167.25, stdev=39.15, samples=61 iops : min= 19, max= 57, avg=41.34, stdev= 9.89, samples=61 lat (msec) : 50=0.12%, 100=0.35%, 250=90.55%, 500=8.98% cpu : usr=0.22%, sys=1.61%, ctx=4503, 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=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=180777: Fri Sep 18 22:32:02 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4976KiB/30884msec) slat (usec): min=3126, max=62530, avg=13629.80, stdev=7542.42 clat (msec): min=28, max=393, avg=181.35, stdev=44.85 lat (msec): min=36, max=416, avg=194.99, stdev=46.54 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 243], 95.00th=[ 264], | 99.00th=[ 309], 99.50th=[ 330], 99.90th=[ 351], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 87, max= 248, per=24.81%, avg=160.28, stdev=39.34, samples=61 iops : min= 21, max= 62, avg=39.61, stdev= 9.94, samples=61 write: IOPS=42, BW=170KiB/s (175kB/s)(5264KiB/30884msec); 0 zone resets slat (usec): min=34, max=12199, avg=229.43, stdev=622.81 clat (msec): min=39, max=382, avg=188.84, stdev=44.61 lat (msec): min=39, max=382, avg=189.07, stdev=44.61 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 129], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 205], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 279], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 347], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 110, max= 256, per=25.35%, avg=170.38, stdev=37.05, samples=61 iops : min= 27, max= 64, avg=42.15, stdev= 9.42, samples=61 lat (msec) : 50=0.12%, 100=0.51%, 250=90.43%, 500=8.95% cpu : usr=0.24%, sys=1.69%, ctx=4450, 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=180778: Fri Sep 18 22:32:02 2026 read: IOPS=40, BW=161KiB/s (164kB/s)(4984KiB/31052msec) slat (usec): min=34, max=190211, avg=13741.50, stdev=9320.96 clat (msec): min=38, max=397, avg=184.49, stdev=48.84 lat (msec): min=50, max=418, avg=198.23, stdev=50.81 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 275], | 99.00th=[ 347], 99.50th=[ 380], 99.90th=[ 393], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 87, max= 248, per=24.77%, avg=160.03, stdev=38.93, samples=61 iops : min= 21, max= 62, avg=39.54, stdev= 9.88, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5256KiB/31052msec); 0 zone resets slat (usec): min=32, max=17708, avg=222.50, stdev=722.56 clat (msec): min=71, max=384, avg=189.18, stdev=46.36 lat (msec): min=71, max=384, avg=189.41, stdev=46.39 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 249], 95.00th=[ 279], | 99.00th=[ 355], 99.50th=[ 363], 99.90th=[ 376], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 71, max= 261, per=25.02%, avg=168.15, stdev=41.05, samples=61 iops : min= 17, max= 65, avg=41.59, stdev=10.39, samples=61 lat (msec) : 50=0.04%, 100=0.47%, 250=90.27%, 500=9.22% cpu : usr=0.24%, sys=1.83%, ctx=4258, 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=180779: Fri Sep 18 22:32:02 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5060KiB/31053msec) slat (usec): min=2807, max=59569, avg=13558.12, stdev=7309.97 clat (msec): min=81, max=390, avg=183.95, stdev=45.94 lat (msec): min=96, max=399, avg=197.51, stdev=47.48 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 120], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 351], 99.90th=[ 376], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 85, max= 248, per=25.10%, avg=162.15, stdev=37.59, samples=61 iops : min= 21, max= 62, avg=40.08, stdev= 9.49, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5180KiB/31053msec); 0 zone resets slat (usec): min=33, max=9282, avg=251.94, stdev=711.71 clat (msec): min=37, max=353, avg=188.03, stdev=42.74 lat (msec): min=38, max=353, avg=188.29, stdev=42.76 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 247], 95.00th=[ 268], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 87, max= 256, per=24.67%, avg=165.79, stdev=35.88, samples=61 iops : min= 21, max= 64, avg=41.00, stdev= 9.08, samples=61 lat (msec) : 50=0.04%, 100=0.47%, 250=91.13%, 500=8.36% cpu : usr=0.28%, sys=1.75%, ctx=4479, 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=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=646KiB/s (662kB/s), 161KiB/s-163KiB/s (164kB/s-167kB/s), io=19.6MiB (20.5MB), run=30884-31053msec WRITE: bw=673KiB/s (689kB/s), 167KiB/s-170KiB/s (171kB/s-175kB/s), io=20.4MiB (21.4MB), run=30884-31053msec 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=180788: Fri Sep 18 22:32:14 2026 read: IOPS=1, BW=54.2MiB/s (56.8MB/s)(40.0MiB/738msec) slat (nsec): min=61945k, max=61945k, avg=61945029.00, stdev= 0.00 clat (nsec): min=647870k, max=647870k, avg=647870337.00, stdev= 0.00 lat (nsec): min=709819k, max=709819k, avg=709819091.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.31%, ctx=8, majf=0, minf=10 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=54.2MiB/s (56.8MB/s), 54.2MiB/s-54.2MiB/s (56.8MB/s-56.8MB/s), io=40.0MiB (41.9MB), run=738-738msec 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