== sanity test 398c: run fio to test AIO ================= 15:39:30 (1783971570) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.3772 s, 111 MB/s osc.lustre-OST0000-osc-ffff8c7a44825000.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=180936: Mon Jul 13 15:40:14 2026 write: IOPS=78, BW=313KiB/s (320kB/s)(10.0MiB/32739msec); 0 zone resets slat (usec): min=42, max=37857, avg=294.23, stdev=1146.39 clat (msec): min=35, max=373, avg=203.90, stdev=48.10 lat (msec): min=36, max=373, avg=204.20, stdev=48.09 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 243], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 376] bw ( KiB/s): min= 207, max= 453, per=24.85%, avg=310.84, stdev=61.73, samples=64 iops : min= 51, max= 113, avg=77.27, stdev=15.43, samples=64 lat (msec) : 50=0.04%, 100=0.43%, 250=82.23%, 500=17.30% cpu : usr=0.14%, sys=0.87%, ctx=2013, 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=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=180937: Mon Jul 13 15:40:14 2026 write: IOPS=78, BW=313KiB/s (321kB/s)(10.0MiB/32682msec); 0 zone resets slat (usec): min=51, max=12510, avg=286.07, stdev=776.18 clat (msec): min=17, max=351, avg=203.56, stdev=50.06 lat (msec): min=17, max=351, avg=203.86, stdev=50.08 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 271], 95.00th=[ 292], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 342], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 223, max= 430, per=24.95%, avg=312.14, stdev=57.10, samples=64 iops : min= 55, max= 107, avg=77.61, stdev=14.28, samples=64 lat (msec) : 20=0.04%, 50=0.20%, 100=1.02%, 250=80.12%, 500=18.63% cpu : usr=0.13%, sys=0.99%, ctx=2492, 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=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=180938: Mon Jul 13 15:40:14 2026 write: IOPS=78, BW=313KiB/s (321kB/s)(10.0MiB/32666msec); 0 zone resets slat (usec): min=51, max=16419, avg=286.96, stdev=830.91 clat (msec): min=29, max=375, avg=203.28, stdev=49.04 lat (msec): min=29, max=375, avg=203.57, stdev=49.04 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 271], 95.00th=[ 288], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 191, max= 508, per=24.95%, avg=312.13, stdev=63.93, samples=64 iops : min= 47, max= 127, avg=77.59, stdev=16.04, samples=64 lat (msec) : 50=0.12%, 100=0.16%, 250=80.94%, 500=18.79% cpu : usr=0.13%, sys=1.07%, ctx=2719, 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=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=180939: Mon Jul 13 15:40:14 2026 write: IOPS=78, BW=315KiB/s (322kB/s)(10.0MiB/32545msec); 0 zone resets slat (usec): min=50, max=21997, avg=302.65, stdev=973.25 clat (msec): min=25, max=351, avg=202.99, stdev=50.63 lat (msec): min=25, max=351, avg=203.29, stdev=50.63 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 186], 50.00th=[ 201], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 247], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 191, max= 487, per=25.03%, avg=313.14, stdev=62.98, samples=64 iops : min= 47, max= 121, avg=77.83, stdev=15.78, samples=64 lat (msec) : 50=0.70%, 100=0.90%, 250=81.05%, 500=17.34% cpu : usr=0.19%, sys=1.03%, ctx=2628, 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=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=1251KiB/s (1281kB/s), 313KiB/s-315KiB/s (320kB/s-322kB/s), io=40.0MiB (41.9MB), run=32545-32739msec 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=180955: Mon Jul 13 15:40:54 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(5048KiB/31884msec) slat (usec): min=91, max=63889, avg=14263.20, stdev=8305.37 clat (msec): min=14, max=348, avg=189.41, stdev=40.49 lat (msec): min=34, max=360, avg=203.68, stdev=41.68 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 243], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 103, max= 223, per=25.23%, avg=157.46, stdev=29.93, samples=63 iops : min= 25, max= 55, avg=38.90, stdev= 7.55, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5192KiB/31884msec); 0 zone resets slat (usec): min=57, max=9730, avg=276.14, stdev=617.03 clat (msec): min=89, max=320, avg=194.36, stdev=38.54 lat (msec): min=89, max=320, avg=194.64, stdev=38.53 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 163], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 247], 95.00th=[ 262], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 95, max= 279, per=25.01%, avg=162.32, stdev=35.62, samples=63 iops : min= 23, max= 69, avg=40.11, stdev= 8.91, samples=63 lat (msec) : 20=0.08%, 50=0.16%, 100=0.16%, 250=91.60%, 500=8.01% cpu : usr=0.15%, sys=1.84%, ctx=4451, 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=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=180956: Mon Jul 13 15:40:54 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4976KiB/32009msec) slat (usec): min=2828, max=83772, avg=13975.98, stdev=7999.78 clat (msec): min=97, max=340, avg=188.09, stdev=39.04 lat (msec): min=105, max=346, avg=202.08, stdev=40.76 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 330], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 24, max= 231, per=24.82%, avg=154.86, stdev=35.74, samples=63 iops : min= 6, max= 57, avg=38.27, stdev= 8.96, samples=63 write: IOPS=41, BW=164KiB/s (168kB/s)(5264KiB/32009msec); 0 zone resets slat (usec): min=53, max=10895, avg=291.72, stdev=743.46 clat (msec): min=101, max=367, avg=194.90, stdev=39.77 lat (msec): min=101, max=367, avg=195.20, stdev=39.82 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 251], 95.00th=[ 268], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 359], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 80, max= 239, per=25.37%, avg=164.62, stdev=39.45, samples=63 iops : min= 20, max= 59, avg=40.70, stdev= 9.83, samples=63 lat (msec) : 100=0.08%, 250=91.88%, 500=8.05% cpu : usr=0.20%, sys=1.60%, ctx=4275, 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=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=180957: Mon Jul 13 15:40:54 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(4984KiB/32158msec) slat (usec): min=2863, max=77810, avg=14086.17, stdev=8135.41 clat (msec): min=42, max=351, avg=188.48, stdev=41.59 lat (msec): min=74, max=360, avg=202.57, stdev=43.36 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 127], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 264], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 71, max= 248, per=25.06%, avg=156.39, stdev=37.28, samples=62 iops : min= 17, max= 62, avg=38.65, stdev= 9.40, samples=62 write: IOPS=40, BW=163KiB/s (167kB/s)(5256KiB/32158msec); 0 zone resets slat (usec): min=57, max=14429, avg=319.77, stdev=831.83 clat (msec): min=44, max=313, avg=195.14, stdev=38.23 lat (msec): min=44, max=313, avg=195.46, stdev=38.19 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 163], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 16, max= 227, per=24.88%, avg=161.48, stdev=37.66, samples=63 iops : min= 4, max= 56, avg=39.92, stdev= 9.36, samples=63 lat (msec) : 50=0.08%, 100=0.55%, 250=90.90%, 500=8.48% cpu : usr=0.27%, sys=1.76%, ctx=4397, 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=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=180958: Mon Jul 13 15:40:54 2026 read: IOPS=39, BW=158KiB/s (161kB/s)(5060KiB/32106msec) slat (usec): min=2687, max=99869, avg=14340.14, stdev=8630.98 clat (msec): min=91, max=392, avg=189.80, stdev=42.47 lat (msec): min=102, max=407, avg=204.15, stdev=44.32 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 224], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 48, max= 248, per=25.31%, avg=157.95, stdev=34.79, samples=63 iops : min= 12, max= 62, avg=39.03, stdev= 8.68, samples=63 write: IOPS=40, BW=161KiB/s (165kB/s)(5180KiB/32106msec); 0 zone resets slat (usec): min=55, max=9183, avg=276.95, stdev=635.46 clat (msec): min=89, max=380, avg=193.88, stdev=38.67 lat (msec): min=89, max=380, avg=194.16, stdev=38.68 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 134], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 224], 90.00th=[ 245], 95.00th=[ 262], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 59, max= 247, per=24.82%, avg=161.06, stdev=41.27, samples=63 iops : min= 14, max= 61, avg=39.78, stdev=10.33, samples=63 lat (msec) : 100=0.12%, 250=91.68%, 500=8.20% cpu : usr=0.21%, sys=1.58%, ctx=4422, 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=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=624KiB/s (639kB/s), 155KiB/s-158KiB/s (159kB/s-162kB/s), io=19.6MiB (20.5MB), run=31884-32158msec WRITE: bw=650KiB/s (665kB/s), 161KiB/s-164KiB/s (165kB/s-168kB/s), io=20.4MiB (21.4MB), run=31884-32158msec 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=180969: Mon Jul 13 15:41:03 2026 read: IOPS=2, BW=101MiB/s (106MB/s)(40.0MiB/395msec) slat (nsec): min=24106k, max=24106k, avg=24105889.00, stdev= 0.00 clat (nsec): min=356436k, max=356436k, avg=356436219.00, stdev= 0.00 lat (nsec): min=380547k, max=380547k, avg=380547041.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.05%, ctx=10, 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=101MiB/s (106MB/s), 101MiB/s-101MiB/s (106MB/s-106MB/s), io=40.0MiB (41.9MB), run=395-395msec 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