== sanity test 398c: run fio to test AIO ================= 15:50:58 (1789069858) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.521528 s, 80.4 MB/s osc.lustre-OST0000-osc-ffffa05d869ca800.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=180161: Thu Sep 10 15:51:37 2026 write: IOPS=87, BW=351KiB/s (360kB/s)(10.0MiB/29134msec); 0 zone resets slat (usec): min=27, max=8014, avg=195.74, stdev=569.40 clat (msec): min=27, max=312, avg=181.33, stdev=42.58 lat (msec): min=30, max=312, avg=181.53, stdev=42.59 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 259], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 176, max= 510, per=24.91%, avg=350.00, stdev=72.28, samples=57 iops : min= 44, max= 127, avg=87.09, stdev=18.09, samples=57 lat (msec) : 50=0.08%, 100=1.37%, 250=91.91%, 500=6.64% cpu : usr=0.18%, sys=0.92%, ctx=2836, majf=0, minf=8 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=180162: Thu Sep 10 15:51:37 2026 write: IOPS=87, BW=352KiB/s (360kB/s)(10.0MiB/29091msec); 0 zone resets slat (usec): min=28, max=11334, avg=196.48, stdev=640.27 clat (msec): min=21, max=323, avg=180.98, stdev=42.57 lat (msec): min=21, max=323, avg=181.18, stdev=42.58 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 122], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 234], 95.00th=[ 257], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 239, max= 510, per=25.01%, avg=351.37, stdev=73.56, samples=57 iops : min= 59, max= 127, avg=87.42, stdev=18.43, samples=57 lat (msec) : 50=0.08%, 100=2.62%, 250=91.25%, 500=6.05% cpu : usr=0.18%, sys=0.80%, ctx=2686, majf=0, minf=8 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=180163: Thu Sep 10 15:51:37 2026 write: IOPS=88, BW=353KiB/s (362kB/s)(10.0MiB/28997msec); 0 zone resets slat (usec): min=28, max=17775, avg=206.07, stdev=737.03 clat (msec): min=20, max=318, avg=180.80, stdev=42.04 lat (msec): min=21, max=318, avg=181.01, stdev=42.05 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 234], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 232, max= 508, per=25.11%, avg=352.82, stdev=65.39, samples=57 iops : min= 58, max= 127, avg=87.81, stdev=16.35, samples=57 lat (msec) : 50=0.20%, 100=1.41%, 250=92.38%, 500=6.02% cpu : usr=0.21%, sys=0.90%, ctx=2444, 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=180164: Thu Sep 10 15:51:37 2026 write: IOPS=87, BW=351KiB/s (360kB/s)(10.0MiB/29133msec); 0 zone resets slat (usec): min=30, max=12441, avg=191.77, stdev=673.42 clat (msec): min=21, max=309, avg=180.99, stdev=41.35 lat (msec): min=24, max=309, avg=181.19, stdev=41.33 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 253], | 99.00th=[ 296], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 199, max= 510, per=24.92%, avg=350.14, stdev=65.66, samples=57 iops : min= 49, max= 127, avg=87.12, stdev=16.44, samples=57 lat (msec) : 50=0.16%, 100=0.82%, 250=93.52%, 500=5.51% cpu : usr=0.24%, sys=0.82%, ctx=2314, 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=1406KiB/s (1440kB/s), 351KiB/s-353KiB/s (360kB/s-362kB/s), io=40.0MiB (41.9MB), run=28997-29134msec 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=180178: Thu Sep 10 15:52:17 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(5048KiB/30569msec) slat (usec): min=2673, max=48413, avg=13091.53, stdev=7036.17 clat (msec): min=20, max=343, avg=179.48, stdev=42.27 lat (msec): min=31, max=348, avg=192.58, stdev=43.78 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 118], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 234], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 70, max= 247, per=24.88%, avg=163.22, stdev=37.91, samples=60 iops : min= 17, max= 61, avg=40.32, stdev= 9.45, samples=60 write: IOPS=42, BW=170KiB/s (174kB/s)(5192KiB/30569msec); 0 zone resets slat (usec): min=29, max=10431, avg=222.02, stdev=734.23 clat (msec): min=36, max=354, avg=185.94, stdev=39.29 lat (msec): min=38, max=354, avg=186.16, stdev=39.27 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 131], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 236], 95.00th=[ 262], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 338], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 49, max= 238, per=24.67%, avg=168.48, stdev=40.20, samples=60 iops : min= 12, max= 59, avg=41.65, stdev=10.07, samples=60 lat (msec) : 50=0.20%, 100=0.55%, 250=92.85%, 500=6.41% cpu : usr=0.29%, sys=1.53%, ctx=4142, 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=180179: Thu Sep 10 15:52:17 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(4976KiB/30529msec) slat (usec): min=3100, max=60704, avg=13600.24, stdev=7307.65 clat (msec): min=77, max=332, avg=179.10, stdev=40.90 lat (msec): min=99, max=346, avg=192.71, stdev=42.31 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 296], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 77, max= 255, per=24.61%, avg=161.45, stdev=38.71, samples=60 iops : min= 19, max= 63, avg=39.87, stdev= 9.68, samples=60 write: IOPS=43, BW=172KiB/s (177kB/s)(5264KiB/30529msec); 0 zone resets slat (usec): min=29, max=16180, avg=255.41, stdev=892.99 clat (msec): min=90, max=360, avg=186.86, stdev=40.99 lat (msec): min=90, max=360, avg=187.12, stdev=40.97 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 245], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 334], 99.90th=[ 338], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 102, max= 263, per=25.20%, avg=172.15, stdev=38.03, samples=60 iops : min= 25, max= 65, avg=42.57, stdev= 9.51, samples=60 lat (msec) : 100=0.70%, 250=92.54%, 500=6.76% cpu : usr=0.27%, sys=1.72%, ctx=4548, 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=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=180180: Thu Sep 10 15:52:17 2026 read: IOPS=41, BW=164KiB/s (168kB/s)(4984KiB/30298msec) slat (usec): min=37, max=47546, avg=13499.58, stdev=7371.76 clat (msec): min=32, max=333, avg=179.61, stdev=41.75 lat (msec): min=39, max=349, avg=193.12, stdev=43.36 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 122], 10.00th=[ 133], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 213], 90.00th=[ 234], 95.00th=[ 253], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 95, max= 270, per=25.02%, avg=164.15, stdev=38.32, samples=60 iops : min= 23, max= 67, avg=40.57, stdev= 9.61, samples=60 write: IOPS=43, BW=173KiB/s (178kB/s)(5256KiB/30298msec); 0 zone resets slat (usec): min=32, max=9237, avg=205.01, stdev=664.05 clat (msec): min=98, max=364, avg=185.02, stdev=41.29 lat (msec): min=98, max=367, avg=185.24, stdev=41.28 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 241], 95.00th=[ 262], | 99.00th=[ 300], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 79, max= 295, per=25.21%, avg=172.18, stdev=41.09, samples=60 iops : min= 19, max= 73, avg=42.57, stdev=10.28, samples=60 lat (msec) : 50=0.16%, 100=0.59%, 250=92.54%, 500=6.72% cpu : usr=0.25%, sys=1.58%, ctx=4249, 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=180181: Thu Sep 10 15:52:17 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(5060KiB/30558msec) slat (usec): min=2840, max=50452, avg=13228.03, stdev=7142.03 clat (msec): min=27, max=335, avg=178.83, stdev=41.13 lat (msec): min=36, max=343, avg=192.06, stdev=42.57 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 121], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 213], 90.00th=[ 234], 95.00th=[ 251], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 56, max= 247, per=25.10%, avg=164.63, stdev=37.10, samples=60 iops : min= 14, max= 61, avg=40.68, stdev= 9.29, samples=60 write: IOPS=42, BW=170KiB/s (174kB/s)(5180KiB/30558msec); 0 zone resets slat (usec): min=31, max=11921, avg=195.86, stdev=665.06 clat (msec): min=77, max=366, avg=186.27, stdev=39.30 lat (msec): min=77, max=366, avg=186.47, stdev=39.31 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 127], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 296], 99.50th=[ 321], 99.90th=[ 334], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 70, max= 287, per=24.65%, avg=168.35, stdev=38.22, samples=60 iops : min= 17, max= 71, avg=41.60, stdev= 9.55, samples=60 lat (msec) : 50=0.04%, 100=0.74%, 250=92.97%, 500=6.25% cpu : usr=0.22%, sys=1.60%, ctx=4052, 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=656KiB/s (672kB/s), 163KiB/s-166KiB/s (167kB/s-170kB/s), io=19.6MiB (20.5MB), run=30298-30569msec WRITE: bw=683KiB/s (700kB/s), 170KiB/s-173KiB/s (174kB/s-178kB/s), io=20.4MiB (21.4MB), run=30298-30569msec 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=180190: Thu Sep 10 15:52:26 2026 read: IOPS=2, BW=82.1MiB/s (86.1MB/s)(40.0MiB/487msec) slat (nsec): min=42285k, max=42285k, avg=42285328.00, stdev= 0.00 clat (nsec): min=415967k, max=415967k, avg=415966597.00, stdev= 0.00 lat (nsec): min=458256k, max=458256k, avg=458256143.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] lat (msec) : 500=100.00% cpu : usr=0.21%, sys=2.06%, ctx=7, 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=82.1MiB/s (86.1MB/s), 82.1MiB/s-82.1MiB/s (86.1MB/s-86.1MB/s), io=40.0MiB (41.9MB), run=487-487msec 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