== sanity test 398c: run fio to test AIO ================= 03:11:25 (1787555485) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.971282 s, 43.2 MB/s osc.lustre-OST0000-osc-ffff9cdf447c4800.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=179722: Mon Aug 24 03:12:08 2026 write: IOPS=95, BW=381KiB/s (390kB/s)(10.0MiB/26856msec); 0 zone resets slat (usec): min=23, max=17027, avg=178.58, stdev=779.58 clat (msec): min=34, max=356, avg=167.25, stdev=52.86 lat (msec): min=35, max=356, avg=167.43, stdev=52.87 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 85], 10.00th=[ 103], 20.00th=[ 123], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 190], 80.00th=[ 209], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 313], 99.50th=[ 334], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 355] bw ( KiB/s): min= 199, max= 734, per=24.91%, avg=379.08, stdev=99.66, samples=53 iops : min= 49, max= 183, avg=94.36, stdev=25.01, samples=53 lat (msec) : 50=0.16%, 100=9.22%, 250=83.95%, 500=6.68% cpu : usr=0.19%, sys=0.98%, ctx=3002, 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=179723: Mon Aug 24 03:12:08 2026 write: IOPS=95, BW=381KiB/s (390kB/s)(10.0MiB/26911msec); 0 zone resets slat (usec): min=21, max=17321, avg=162.11, stdev=708.92 clat (msec): min=13, max=332, avg=167.25, stdev=51.64 lat (msec): min=13, max=332, avg=167.41, stdev=51.64 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 86], 10.00th=[ 104], 20.00th=[ 122], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 239], 95.00th=[ 253], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 127, max= 766, per=24.92%, avg=379.28, stdev=103.60, samples=53 iops : min= 31, max= 191, avg=94.42, stdev=26.00, samples=53 lat (msec) : 20=0.04%, 100=7.97%, 250=85.98%, 500=6.02% cpu : usr=0.17%, sys=0.84%, ctx=2269, 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=179724: Mon Aug 24 03:12:08 2026 write: IOPS=95, BW=381KiB/s (390kB/s)(10.0MiB/26902msec); 0 zone resets slat (usec): min=21, max=22863, avg=153.66, stdev=776.00 clat (msec): min=24, max=328, avg=167.23, stdev=51.66 lat (msec): min=24, max=329, avg=167.38, stdev=51.66 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 88], 10.00th=[ 103], 20.00th=[ 122], | 30.00th=[ 142], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 211], 90.00th=[ 236], 95.00th=[ 268], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 135, max= 766, per=24.92%, avg=379.21, stdev=106.08, samples=53 iops : min= 33, max= 191, avg=94.42, stdev=26.64, samples=53 lat (msec) : 50=0.16%, 100=9.30%, 250=84.34%, 500=6.21% cpu : usr=0.12%, sys=0.76%, ctx=1838, 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=179725: Mon Aug 24 03:12:08 2026 write: IOPS=95, BW=382KiB/s (391kB/s)(10.0MiB/26840msec); 0 zone resets slat (usec): min=22, max=19263, avg=157.23, stdev=683.81 clat (msec): min=9, max=342, avg=167.40, stdev=52.77 lat (msec): min=9, max=342, avg=167.56, stdev=52.77 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 83], 10.00th=[ 103], 20.00th=[ 123], | 30.00th=[ 138], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 209], 90.00th=[ 236], 95.00th=[ 262], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 214, max= 774, per=24.91%, avg=379.13, stdev=105.96, samples=52 iops : min= 53, max= 193, avg=94.38, stdev=26.60, samples=52 lat (msec) : 10=0.04%, 100=9.49%, 250=83.87%, 500=6.60% cpu : usr=0.20%, sys=0.85%, ctx=2755, 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 Run status group 0 (all jobs): WRITE: bw=1522KiB/s (1559kB/s), 381KiB/s-382KiB/s (390kB/s-391kB/s), io=40.0MiB (41.9MB), run=26840-26911msec 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=179739: Mon Aug 24 03:12:46 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(5048KiB/29457msec) slat (usec): min=35, max=66324, avg=13023.48, stdev=7631.30 clat (msec): min=69, max=347, avg=174.99, stdev=47.23 lat (msec): min=73, max=360, avg=188.02, stdev=49.49 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 108], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 197], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 266], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 69, max= 270, per=25.18%, avg=170.95, stdev=45.69, samples=58 iops : min= 17, max= 67, avg=42.26, stdev=11.48, samples=58 write: IOPS=44, BW=176KiB/s (180kB/s)(5192KiB/29457msec); 0 zone resets slat (usec): min=29, max=14978, avg=186.60, stdev=643.29 clat (msec): min=78, max=309, avg=177.55, stdev=42.56 lat (msec): min=78, max=309, avg=177.74, stdev=42.56 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 112], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 236], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 41, max= 295, per=24.96%, avg=176.45, stdev=49.43, samples=58 iops : min= 10, max= 73, avg=43.67, stdev=12.32, samples=58 lat (msec) : 100=2.42%, 250=90.55%, 500=7.03% cpu : usr=0.29%, sys=1.84%, ctx=4535, 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=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=179740: Mon Aug 24 03:12:46 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(4976KiB/29516msec) slat (usec): min=34, max=63479, avg=13456.77, stdev=8075.57 clat (msec): min=6, max=326, avg=172.10, stdev=44.13 lat (msec): min=18, max=341, avg=185.56, stdev=46.33 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 106], 10.00th=[ 117], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 34, max= 280, per=24.73%, avg=167.90, stdev=49.20, samples=58 iops : min= 8, max= 70, avg=41.50, stdev=12.34, samples=58 write: IOPS=44, BW=178KiB/s (183kB/s)(5264KiB/29516msec); 0 zone resets slat (usec): min=29, max=9666, avg=165.33, stdev=476.46 clat (msec): min=80, max=335, avg=180.84, stdev=45.38 lat (msec): min=80, max=335, avg=181.01, stdev=45.38 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 113], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 83, max= 311, per=25.18%, avg=178.00, stdev=43.95, samples=58 iops : min= 20, max= 77, avg=44.07, stdev=11.10, samples=58 lat (msec) : 10=0.04%, 50=0.08%, 100=2.30%, 250=90.04%, 500=7.54% cpu : usr=0.25%, sys=1.69%, ctx=4291, 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=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=179741: Mon Aug 24 03:12:46 2026 read: IOPS=42, BW=170KiB/s (174kB/s)(4984KiB/29279msec) slat (usec): min=31, max=52153, avg=13203.69, stdev=7741.34 clat (msec): min=48, max=367, avg=174.36, stdev=46.15 lat (msec): min=66, max=386, avg=187.57, stdev=48.09 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 136], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 232], 95.00th=[ 255], | 99.00th=[ 300], 99.50th=[ 326], 99.90th=[ 363], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 95, max= 271, per=25.10%, avg=170.40, stdev=42.74, samples=57 iops : min= 23, max= 67, avg=42.14, stdev=10.78, samples=57 write: IOPS=44, BW=180KiB/s (184kB/s)(5256KiB/29279msec); 0 zone resets slat (usec): min=22, max=13017, avg=188.34, stdev=629.99 clat (msec): min=61, max=326, avg=177.76, stdev=44.73 lat (msec): min=61, max=327, avg=177.95, stdev=44.73 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 112], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 241], 95.00th=[ 266], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 68, max= 319, per=25.22%, avg=178.33, stdev=49.38, samples=57 iops : min= 17, max= 79, avg=44.14, stdev=12.33, samples=57 lat (msec) : 50=0.04%, 100=2.93%, 250=90.04%, 500=6.99% cpu : usr=0.26%, sys=1.64%, ctx=4250, 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=179742: Mon Aug 24 03:12:46 2026 read: IOPS=42, BW=172KiB/s (176kB/s)(5060KiB/29475msec) slat (usec): min=2391, max=53442, avg=13348.15, stdev=7698.47 clat (msec): min=31, max=361, avg=174.44, stdev=47.28 lat (msec): min=38, max=375, avg=187.80, stdev=49.37 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 133], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 192], 80.00th=[ 211], 90.00th=[ 236], 95.00th=[ 264], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 347], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 48, max= 288, per=25.29%, avg=171.72, stdev=43.59, samples=58 iops : min= 12, max= 72, avg=42.50, stdev=11.00, samples=58 write: IOPS=43, BW=176KiB/s (180kB/s)(5180KiB/29475msec); 0 zone resets slat (usec): min=25, max=19394, avg=216.96, stdev=935.64 clat (msec): min=45, max=324, avg=177.67, stdev=43.75 lat (msec): min=45, max=324, avg=177.89, stdev=43.75 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 186], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 259], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 48, max= 286, per=24.80%, avg=175.36, stdev=48.94, samples=58 iops : min= 12, max= 71, avg=43.38, stdev=12.19, samples=58 lat (msec) : 50=0.16%, 100=2.38%, 250=90.70%, 500=6.76% cpu : usr=0.34%, sys=1.73%, ctx=4492, 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=680KiB/s (696kB/s), 169KiB/s-172KiB/s (173kB/s-176kB/s), io=19.6MiB (20.5MB), run=29279-29516msec WRITE: bw=708KiB/s (725kB/s), 176KiB/s-180KiB/s (180kB/s-184kB/s), io=20.4MiB (21.4MB), run=29279-29516msec 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=179751: Mon Aug 24 03:12:59 2026 read: IOPS=1, BW=70.3MiB/s (73.7MB/s)(40.0MiB/569msec) slat (nsec): min=33031k, max=33031k, avg=33031182.00, stdev= 0.00 clat (nsec): min=522137k, max=522137k, avg=522136689.00, stdev= 0.00 lat (nsec): min=555173k, max=555173k, avg=555173200.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.29%, ctx=10, 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=70.3MiB/s (73.7MB/s), 70.3MiB/s-70.3MiB/s (73.7MB/s-73.7MB/s), io=40.0MiB (41.9MB), run=569-569msec 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