== sanity test 398c: run fio to test AIO ================= 08:02:25 (1782734545) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.784318 s, 53.5 MB/s osc.lustre-OST0000-osc-ffff91c702c38800.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=179215: Mon Jun 29 08:03:07 2026 write: IOPS=96, BW=385KiB/s (394kB/s)(10.0MiB/26606msec); 0 zone resets slat (usec): min=37, max=29530, avg=324.01, stdev=1150.80 clat (msec): min=14, max=319, avg=165.77, stdev=50.47 lat (msec): min=14, max=319, avg=166.10, stdev=50.52 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 87], 10.00th=[ 101], 20.00th=[ 123], | 30.00th=[ 136], 40.00th=[ 148], 50.00th=[ 165], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 209], 90.00th=[ 234], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 309], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 250, max= 686, per=24.94%, avg=383.77, stdev=108.95, samples=52 iops : min= 62, max= 171, avg=95.54, stdev=27.27, samples=52 lat (msec) : 20=0.04%, 50=0.08%, 100=9.92%, 250=83.44%, 500=6.52% cpu : usr=0.19%, sys=1.24%, ctx=2752, 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=179216: Mon Jun 29 08:03:07 2026 write: IOPS=96, BW=386KiB/s (395kB/s)(10.0MiB/26551msec); 0 zone resets slat (usec): min=37, max=26184, avg=284.12, stdev=1034.27 clat (msec): min=23, max=320, avg=165.60, stdev=51.32 lat (msec): min=23, max=320, avg=165.88, stdev=51.36 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 91], 10.00th=[ 100], 20.00th=[ 123], | 30.00th=[ 133], 40.00th=[ 146], 50.00th=[ 163], 60.00th=[ 178], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 234], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 309], 99.90th=[ 317], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 254, max= 742, per=25.03%, avg=385.17, stdev=110.47, samples=52 iops : min= 63, max= 185, avg=95.92, stdev=27.64, samples=52 lat (msec) : 50=0.12%, 100=10.35%, 250=83.44%, 500=6.09% cpu : usr=0.17%, sys=1.10%, ctx=2789, 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=179217: Mon Jun 29 08:03:07 2026 write: IOPS=96, BW=387KiB/s (396kB/s)(10.0MiB/26471msec); 0 zone resets slat (usec): min=35, max=22378, avg=257.73, stdev=990.77 clat (msec): min=21, max=318, avg=165.07, stdev=51.00 lat (msec): min=22, max=318, avg=165.33, stdev=51.01 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 90], 10.00th=[ 103], 20.00th=[ 122], | 30.00th=[ 133], 40.00th=[ 146], 50.00th=[ 159], 60.00th=[ 176], | 70.00th=[ 192], 80.00th=[ 211], 90.00th=[ 236], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 240, max= 678, per=25.19%, avg=387.73, stdev=107.65, samples=52 iops : min= 60, max= 169, avg=96.56, stdev=26.93, samples=52 lat (msec) : 50=0.12%, 100=8.55%, 250=85.43%, 500=5.90% cpu : usr=0.13%, sys=1.04%, ctx=2004, 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=179218: Mon Jun 29 08:03:07 2026 write: IOPS=96, BW=386KiB/s (395kB/s)(10.0MiB/26514msec); 0 zone resets slat (usec): min=36, max=19796, avg=288.04, stdev=918.65 clat (msec): min=17, max=318, avg=165.34, stdev=50.94 lat (msec): min=17, max=318, avg=165.63, stdev=50.99 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 85], 10.00th=[ 101], 20.00th=[ 121], | 30.00th=[ 133], 40.00th=[ 146], 50.00th=[ 163], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 239], 95.00th=[ 253], | 99.00th=[ 279], 99.50th=[ 309], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 247, max= 694, per=25.09%, avg=386.12, stdev=108.88, samples=52 iops : min= 61, max= 173, avg=96.12, stdev=27.25, samples=52 lat (msec) : 20=0.04%, 50=0.12%, 100=9.57%, 250=84.53%, 500=5.74% cpu : usr=0.19%, sys=1.31%, ctx=2957, 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=1540KiB/s (1576kB/s), 385KiB/s-387KiB/s (394kB/s-396kB/s), io=40.0MiB (41.9MB), run=26471-26606msec 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=179234: Mon Jun 29 08:03:53 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(5048KiB/35717msec) slat (usec): min=3184, max=58179, avg=15911.64, stdev=8816.16 clat (msec): min=47, max=455, avg=209.79, stdev=53.35 lat (msec): min=61, max=486, avg=225.71, stdev=55.73 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 134], 10.00th=[ 148], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 243], 90.00th=[ 279], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 414], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 22, max= 231, per=25.00%, avg=140.26, stdev=38.41, samples=70 iops : min= 5, max= 57, avg=34.60, stdev= 9.65, samples=70 write: IOPS=36, BW=145KiB/s (149kB/s)(5192KiB/35717msec); 0 zone resets slat (usec): min=59, max=12953, avg=238.77, stdev=563.15 clat (msec): min=113, max=426, avg=216.44, stdev=50.68 lat (msec): min=113, max=426, avg=216.68, stdev=50.66 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 150], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 249], 90.00th=[ 275], 95.00th=[ 317], | 99.00th=[ 388], 99.50th=[ 405], 99.90th=[ 422], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 7, max= 215, per=24.84%, avg=145.04, stdev=38.45, samples=70 iops : min= 1, max= 53, avg=35.79, stdev= 9.61, samples=70 lat (msec) : 50=0.04%, 100=0.27%, 250=81.76%, 500=17.93% cpu : usr=0.17%, sys=1.92%, ctx=4295, 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=179235: Mon Jun 29 08:03:53 2026 read: IOPS=34, BW=140KiB/s (143kB/s)(4976KiB/35601msec) slat (usec): min=2985, max=80888, avg=15998.63, stdev=9256.05 clat (msec): min=21, max=459, avg=210.29, stdev=55.77 lat (msec): min=30, max=499, avg=226.30, stdev=58.58 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 247], 90.00th=[ 279], 95.00th=[ 317], | 99.00th=[ 376], 99.50th=[ 409], 99.90th=[ 443], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 22, max= 215, per=24.64%, avg=138.24, stdev=38.41, samples=70 iops : min= 5, max= 53, avg=34.10, stdev= 9.68, samples=70 write: IOPS=36, BW=148KiB/s (151kB/s)(5264KiB/35601msec); 0 zone resets slat (usec): min=59, max=9684, avg=282.42, stdev=727.82 clat (msec): min=84, max=464, avg=216.30, stdev=51.69 lat (msec): min=86, max=464, avg=216.58, stdev=51.70 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 222], | 70.00th=[ 232], 80.00th=[ 249], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 401], 99.50th=[ 435], 99.90th=[ 460], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 63, max= 247, per=25.24%, avg=147.41, stdev=41.45, samples=70 iops : min= 15, max= 61, avg=36.39, stdev=10.36, samples=70 lat (msec) : 50=0.12%, 100=0.35%, 250=80.55%, 500=18.98% cpu : usr=0.24%, sys=1.84%, ctx=4522, 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=179236: Mon Jun 29 08:03:53 2026 read: IOPS=34, BW=139KiB/s (143kB/s)(4984KiB/35742msec) slat (usec): min=2382, max=69826, avg=15748.09, stdev=8630.37 clat (msec): min=10, max=435, avg=211.02, stdev=55.46 lat (msec): min=29, max=446, avg=226.78, stdev=57.23 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 249], 90.00th=[ 275], 95.00th=[ 321], | 99.00th=[ 380], 99.50th=[ 397], 99.90th=[ 426], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 14, max= 271, per=24.56%, avg=137.80, stdev=39.07, samples=70 iops : min= 3, max= 67, avg=33.99, stdev= 9.80, samples=70 write: IOPS=36, BW=147KiB/s (151kB/s)(5256KiB/35742msec); 0 zone resets slat (usec): min=59, max=11401, avg=264.38, stdev=679.55 clat (msec): min=19, max=432, avg=215.57, stdev=53.58 lat (msec): min=19, max=432, avg=215.84, stdev=53.54 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 222], | 70.00th=[ 234], 80.00th=[ 249], 90.00th=[ 279], 95.00th=[ 317], | 99.00th=[ 388], 99.50th=[ 397], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 22, max= 256, per=24.76%, avg=144.57, stdev=41.53, samples=70 iops : min= 5, max= 64, avg=35.67, stdev=10.44, samples=70 lat (msec) : 20=0.08%, 50=0.20%, 100=1.02%, 250=79.45%, 500=19.26% cpu : usr=0.23%, sys=1.62%, ctx=4409, 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=179237: Mon Jun 29 08:03:53 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(5060KiB/35411msec) slat (usec): min=57, max=78292, avg=15415.43, stdev=9272.20 clat (msec): min=65, max=461, avg=210.89, stdev=53.69 lat (msec): min=77, max=493, avg=226.32, stdev=55.64 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 228], 80.00th=[ 247], 90.00th=[ 275], 95.00th=[ 317], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 447], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 62, max= 231, per=25.37%, avg=142.30, stdev=36.56, samples=70 iops : min= 15, max= 57, avg=35.10, stdev= 9.15, samples=70 write: IOPS=36, BW=146KiB/s (150kB/s)(5180KiB/35411msec); 0 zone resets slat (usec): min=46, max=13951, avg=250.30, stdev=767.53 clat (msec): min=52, max=428, avg=215.51, stdev=50.67 lat (msec): min=53, max=428, avg=215.77, stdev=50.64 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 279], 95.00th=[ 326], | 99.00th=[ 376], 99.50th=[ 393], 99.90th=[ 418], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 80, max= 231, per=24.96%, avg=145.76, stdev=34.72, samples=70 iops : min= 20, max= 57, avg=35.99, stdev= 8.74, samples=70 lat (msec) : 100=0.43%, 250=80.90%, 500=18.67% cpu : usr=0.23%, sys=1.88%, ctx=4248, 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=561KiB/s (575kB/s), 139KiB/s-143KiB/s (143kB/s-146kB/s), io=19.6MiB (20.5MB), run=35411-35742msec WRITE: bw=585KiB/s (599kB/s), 145KiB/s-148KiB/s (149kB/s-151kB/s), io=20.4MiB (21.4MB), run=35411-35742msec 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=179246: Mon Jun 29 08:04:03 2026 read: IOPS=1, BW=69.4MiB/s (72.8MB/s)(40.0MiB/576msec) slat (nsec): min=40936k, max=40936k, avg=40936138.00, stdev= 0.00 clat (nsec): min=505217k, max=505217k, avg=505217139.00, stdev= 0.00 lat (nsec): min=546159k, max=546159k, avg=546158562.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] lat (msec) : 750=100.00% cpu : usr=0.17%, sys=2.61%, ctx=7, majf=0, minf=9 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=69.4MiB/s (72.8MB/s), 69.4MiB/s-69.4MiB/s (72.8MB/s-72.8MB/s), io=40.0MiB (41.9MB), run=576-576msec 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