== sanity test 398c: run fio to test AIO ================= 10:49:04 (1789138144) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.554881 s, 75.6 MB/s osc.lustre-OST0000-osc-ffff9c9dc2e8d000.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=180309: Fri Sep 11 10:49:42 2026 write: IOPS=96, BW=386KiB/s (395kB/s)(10.0MiB/26514msec); 0 zone resets slat (usec): min=20, max=11194, avg=121.37, stdev=454.63 clat (msec): min=76, max=300, avg=165.44, stdev=39.63 lat (msec): min=76, max=300, avg=165.56, stdev=39.62 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 112], 10.00th=[ 122], 20.00th=[ 129], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 199], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 254, max= 559, per=24.99%, avg=385.63, stdev=76.53, samples=52 iops : min= 63, max= 139, avg=96.06, stdev=19.16, samples=52 lat (msec) : 100=2.03%, 250=94.30%, 500=3.67% cpu : usr=0.18%, sys=0.61%, ctx=1265, 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=180310: Fri Sep 11 10:49:42 2026 write: IOPS=96, BW=386KiB/s (395kB/s)(10.0MiB/26545msec); 0 zone resets slat (usec): min=22, max=7593, avg=146.99, stdev=432.81 clat (msec): min=11, max=313, avg=164.86, stdev=40.13 lat (msec): min=12, max=313, avg=165.01, stdev=40.12 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 130], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 215], 95.00th=[ 230], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 254, max= 512, per=24.87%, avg=383.71, stdev=74.58, samples=52 iops : min= 63, max= 128, avg=95.56, stdev=18.61, samples=52 lat (msec) : 20=0.04%, 100=2.07%, 250=94.61%, 500=3.28% cpu : usr=0.19%, sys=0.76%, ctx=2400, 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=180311: Fri Sep 11 10:49:42 2026 write: IOPS=96, BW=387KiB/s (396kB/s)(10.0MiB/26478msec); 0 zone resets slat (usec): min=22, max=16977, avg=198.31, stdev=699.85 clat (msec): min=23, max=309, avg=164.59, stdev=40.92 lat (msec): min=23, max=309, avg=164.79, stdev=40.90 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 106], 10.00th=[ 120], 20.00th=[ 131], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 184], 80.00th=[ 203], 90.00th=[ 220], 95.00th=[ 236], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 256, max= 512, per=25.02%, avg=386.00, stdev=66.29, samples=52 iops : min= 64, max= 128, avg=96.13, stdev=16.54, samples=52 lat (msec) : 50=0.16%, 100=3.20%, 250=93.95%, 500=2.70% cpu : usr=0.25%, sys=0.93%, ctx=2985, 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=180312: Fri Sep 11 10:49:42 2026 write: IOPS=96, BW=387KiB/s (396kB/s)(10.0MiB/26451msec); 0 zone resets slat (usec): min=22, max=16997, avg=205.65, stdev=738.48 clat (msec): min=7, max=359, avg=165.02, stdev=41.77 lat (msec): min=8, max=359, avg=165.22, stdev=41.76 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 107], 10.00th=[ 118], 20.00th=[ 131], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 338], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 254, max= 546, per=25.05%, avg=386.56, stdev=66.21, samples=52 iops : min= 63, max= 136, avg=96.27, stdev=16.55, samples=52 lat (msec) : 10=0.04%, 20=0.08%, 50=0.23%, 100=2.89%, 250=94.26% lat (msec) : 500=2.50% cpu : usr=0.22%, sys=1.02%, ctx=3021, 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=1543KiB/s (1580kB/s), 386KiB/s-387KiB/s (395kB/s-396kB/s), io=40.0MiB (41.9MB), run=26451-26545msec 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=180326: Fri Sep 11 10:50:21 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(5048KiB/29519msec) slat (usec): min=2849, max=50004, avg=13254.35, stdev=7302.46 clat (msec): min=17, max=341, avg=174.71, stdev=41.58 lat (msec): min=23, max=381, avg=187.97, stdev=43.10 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 192], 80.00th=[ 209], 90.00th=[ 232], 95.00th=[ 247], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 93, max= 240, per=25.08%, avg=170.28, stdev=31.18, samples=58 iops : min= 23, max= 60, avg=42.12, stdev= 7.89, samples=58 write: IOPS=43, BW=176KiB/s (180kB/s)(5192KiB/29519msec); 0 zone resets slat (usec): min=30, max=16139, avg=216.59, stdev=892.17 clat (msec): min=83, max=330, avg=177.97, stdev=40.83 lat (msec): min=83, max=334, avg=178.19, stdev=40.86 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 120], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 230], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 79, max= 295, per=24.83%, avg=175.55, stdev=41.74, samples=58 iops : min= 19, max= 73, avg=43.45, stdev=10.50, samples=58 lat (msec) : 20=0.04%, 50=0.08%, 100=1.13%, 250=93.83%, 500=4.92% cpu : usr=0.26%, sys=1.87%, ctx=4538, 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=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=180327: Fri Sep 11 10:50:21 2026 read: IOPS=42, BW=168KiB/s (173kB/s)(4976KiB/29536msec) slat (usec): min=2549, max=60339, avg=12901.05, stdev=7039.03 clat (msec): min=38, max=345, avg=173.33, stdev=41.96 lat (msec): min=55, max=362, avg=186.24, stdev=43.21 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 113], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 230], 95.00th=[ 251], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 330], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 85, max= 246, per=24.57%, avg=166.83, stdev=41.05, samples=58 iops : min= 21, max= 61, avg=41.28, stdev=10.36, samples=58 write: IOPS=44, BW=178KiB/s (183kB/s)(5264KiB/29536msec); 0 zone resets slat (usec): min=25, max=6687, avg=157.59, stdev=418.25 clat (msec): min=38, max=339, avg=180.24, stdev=42.82 lat (msec): min=38, max=339, avg=180.40, stdev=42.83 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 122], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 241], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 317], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 103, max= 304, per=25.11%, avg=177.52, stdev=38.66, samples=58 iops : min= 25, max= 76, avg=43.95, stdev= 9.66, samples=58 lat (msec) : 50=0.08%, 100=0.98%, 250=92.54%, 500=6.41% cpu : usr=0.29%, sys=1.75%, ctx=4369, 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=180328: Fri Sep 11 10:50:21 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(4984KiB/29424msec) slat (usec): min=2820, max=53325, avg=12864.69, stdev=7143.63 clat (msec): min=35, max=331, avg=173.03, stdev=41.60 lat (msec): min=62, max=359, avg=185.90, stdev=43.03 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 109], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 228], 95.00th=[ 249], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 317], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 78, max= 279, per=24.91%, avg=169.12, stdev=42.80, samples=58 iops : min= 19, max= 69, avg=41.84, stdev=10.78, samples=58 write: IOPS=44, BW=179KiB/s (183kB/s)(5256KiB/29424msec); 0 zone resets slat (usec): min=33, max=10580, avg=203.63, stdev=653.44 clat (msec): min=85, max=321, avg=179.18, stdev=40.82 lat (msec): min=86, max=321, avg=179.39, stdev=40.85 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 121], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 209], 90.00th=[ 232], 95.00th=[ 259], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 71, max= 280, per=25.14%, avg=177.74, stdev=41.53, samples=58 iops : min= 17, max= 70, avg=43.97, stdev=10.45, samples=58 lat (msec) : 50=0.04%, 100=1.60%, 250=92.93%, 500=5.43% cpu : usr=0.33%, sys=1.84%, ctx=4315, 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=180329: Fri Sep 11 10:50:21 2026 read: IOPS=43, BW=173KiB/s (177kB/s)(5060KiB/29251msec) slat (usec): min=38, max=51864, avg=12838.84, stdev=7287.47 clat (msec): min=8, max=339, avg=172.78, stdev=43.45 lat (msec): min=14, max=376, avg=185.62, stdev=45.16 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 87, max= 264, per=25.33%, avg=171.97, stdev=37.11, samples=58 iops : min= 21, max= 66, avg=42.55, stdev= 9.31, samples=58 write: IOPS=44, BW=177KiB/s (181kB/s)(5180KiB/29251msec); 0 zone resets slat (usec): min=28, max=18587, avg=198.61, stdev=736.73 clat (msec): min=62, max=368, avg=179.44, stdev=43.71 lat (msec): min=62, max=368, avg=179.64, stdev=43.72 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 309], 99.50th=[ 313], 99.90th=[ 347], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 95, max= 286, per=24.91%, avg=176.09, stdev=42.52, samples=58 iops : min= 23, max= 71, avg=43.59, stdev=10.66, samples=58 lat (msec) : 10=0.04%, 20=0.04%, 50=0.16%, 100=1.52%, 250=92.15% lat (msec) : 500=6.09% cpu : usr=0.25%, sys=2.00%, ctx=4429, 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=679KiB/s (696kB/s), 168KiB/s-173KiB/s (173kB/s-177kB/s), io=19.6MiB (20.5MB), run=29251-29536msec WRITE: bw=707KiB/s (724kB/s), 176KiB/s-179KiB/s (180kB/s-183kB/s), io=20.4MiB (21.4MB), run=29251-29536msec 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=180337: Fri Sep 11 10:50:31 2026 read: IOPS=2, BW=85.8MiB/s (90.0MB/s)(40.0MiB/466msec) slat (nsec): min=42787k, max=42787k, avg=42787320.00, stdev= 0.00 clat (nsec): min=402670k, max=402670k, avg=402669611.00, stdev= 0.00 lat (nsec): min=445463k, max=445463k, avg=445462798.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.37%, 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=85.8MiB/s (90.0MB/s), 85.8MiB/s-85.8MiB/s (90.0MB/s-90.0MB/s), io=40.0MiB (41.9MB), run=466-466msec 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