== sanity test 398c: run fio to test AIO ================= 04:52:52 (1789548772) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.178526 s, 235 MB/s osc.lustre-OST0000-osc-ffff9566f469b000.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=189544: Wed Sep 16 04:53:14 2026 write: IOPS=150, BW=600KiB/s (614kB/s)(10.0MiB/17065msec); 0 zone resets slat (usec): min=23, max=7555, avg=185.05, stdev=395.24 clat (msec): min=10, max=182, avg=106.36, stdev=19.86 lat (msec): min=10, max=183, avg=106.54, stdev=19.84 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 78], 10.00th=[ 85], 20.00th=[ 92], | 30.00th=[ 97], 40.00th=[ 102], 50.00th=[ 105], 60.00th=[ 109], | 70.00th=[ 114], 80.00th=[ 121], 90.00th=[ 132], 95.00th=[ 138], | 99.00th=[ 165], 99.50th=[ 174], 99.90th=[ 180], 99.95th=[ 180], | 99.99th=[ 184] bw ( KiB/s): min= 455, max= 764, per=25.15%, avg=598.82, stdev=69.12, samples=33 iops : min= 113, max= 191, avg=149.52, stdev=17.34, samples=33 lat (msec) : 20=0.08%, 50=0.86%, 100=36.25%, 250=62.81% cpu : usr=0.27%, sys=1.48%, ctx=2758, 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=189545: Wed Sep 16 04:53:14 2026 write: IOPS=148, BW=596KiB/s (610kB/s)(10.0MiB/17183msec); 0 zone resets slat (usec): min=22, max=7206, avg=214.14, stdev=427.82 clat (msec): min=13, max=202, avg=106.83, stdev=19.68 lat (msec): min=13, max=202, avg=107.04, stdev=19.69 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 78], 10.00th=[ 85], 20.00th=[ 92], | 30.00th=[ 97], 40.00th=[ 102], 50.00th=[ 105], 60.00th=[ 109], | 70.00th=[ 114], 80.00th=[ 121], 90.00th=[ 133], 95.00th=[ 140], | 99.00th=[ 167], 99.50th=[ 178], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 399, max= 764, per=24.94%, avg=593.88, stdev=70.37, samples=34 iops : min= 99, max= 191, avg=148.26, stdev=17.66, samples=34 lat (msec) : 20=0.04%, 50=0.23%, 100=37.89%, 250=61.84% cpu : usr=0.24%, sys=1.63%, ctx=2869, 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=189546: Wed Sep 16 04:53:14 2026 write: IOPS=148, BW=595KiB/s (610kB/s)(10.0MiB/17202msec); 0 zone resets slat (usec): min=24, max=8664, avg=199.96, stdev=436.92 clat (msec): min=18, max=189, avg=106.87, stdev=18.57 lat (msec): min=18, max=189, avg=107.08, stdev=18.56 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 81], 10.00th=[ 86], 20.00th=[ 93], | 30.00th=[ 97], 40.00th=[ 102], 50.00th=[ 105], 60.00th=[ 109], | 70.00th=[ 115], 80.00th=[ 121], 90.00th=[ 132], 95.00th=[ 140], | 99.00th=[ 159], 99.50th=[ 184], 99.90th=[ 190], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 495, max= 768, per=24.92%, avg=593.32, stdev=67.09, samples=34 iops : min= 123, max= 192, avg=148.12, stdev=16.81, samples=34 lat (msec) : 20=0.04%, 50=0.08%, 100=37.19%, 250=62.70% cpu : usr=0.30%, sys=1.58%, ctx=2964, 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=189547: Wed Sep 16 04:53:14 2026 write: IOPS=148, BW=596KiB/s (610kB/s)(10.0MiB/17187msec); 0 zone resets slat (usec): min=25, max=6277, avg=187.24, stdev=378.08 clat (msec): min=10, max=175, avg=106.85, stdev=19.07 lat (msec): min=10, max=175, avg=107.04, stdev=19.06 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 78], 10.00th=[ 84], 20.00th=[ 92], | 30.00th=[ 99], 40.00th=[ 102], 50.00th=[ 106], 60.00th=[ 109], | 70.00th=[ 113], 80.00th=[ 121], 90.00th=[ 133], 95.00th=[ 138], | 99.00th=[ 167], 99.50th=[ 174], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 399, max= 764, per=24.95%, avg=594.00, stdev=71.90, samples=34 iops : min= 99, max= 191, avg=148.29, stdev=18.04, samples=34 lat (msec) : 20=0.04%, 50=0.04%, 100=34.65%, 250=65.27% cpu : usr=0.20%, sys=1.40%, ctx=2790, 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=2381KiB/s (2438kB/s), 595KiB/s-600KiB/s (610kB/s-614kB/s), io=40.0MiB (41.9MB), run=17065-17202msec 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=189559: Wed Sep 16 04:53:33 2026 read: IOPS=85, BW=343KiB/s (351kB/s)(5048KiB/14709msec) slat (usec): min=37, max=20202, avg=6018.33, stdev=2516.91 clat (msec): min=7, max=170, avg=86.92, stdev=18.06 lat (msec): min=14, max=178, avg=92.94, stdev=18.75 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 61], 10.00th=[ 67], 20.00th=[ 72], | 30.00th=[ 78], 40.00th=[ 82], 50.00th=[ 86], 60.00th=[ 90], | 70.00th=[ 95], 80.00th=[ 102], 90.00th=[ 110], 95.00th=[ 118], | 99.00th=[ 138], 99.50th=[ 144], 99.90th=[ 165], 99.95th=[ 171], | 99.99th=[ 171] bw ( KiB/s): min= 224, max= 435, per=25.40%, avg=342.90, stdev=48.47, samples=29 iops : min= 56, max= 108, avg=85.52, stdev=12.09, samples=29 write: IOPS=88, BW=353KiB/s (361kB/s)(5192KiB/14709msec); 0 zone resets slat (usec): min=36, max=10374, avg=199.71, stdev=452.16 clat (msec): min=21, max=164, avg=90.45, stdev=16.33 lat (msec): min=21, max=164, avg=90.65, stdev=16.34 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 66], 10.00th=[ 71], 20.00th=[ 78], | 30.00th=[ 82], 40.00th=[ 86], 50.00th=[ 90], 60.00th=[ 93], | 70.00th=[ 99], 80.00th=[ 104], 90.00th=[ 112], 95.00th=[ 118], | 99.00th=[ 134], 99.50th=[ 142], 99.90th=[ 146], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 255, max= 496, per=25.13%, avg=353.31, stdev=55.92, samples=29 iops : min= 63, max= 124, avg=88.14, stdev=14.00, samples=29 lat (msec) : 10=0.04%, 20=0.04%, 50=0.43%, 100=75.08%, 250=24.41% cpu : usr=0.42%, sys=3.06%, ctx=4859, majf=0, minf=15 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=189560: Wed Sep 16 04:53:33 2026 read: IOPS=83, BW=335KiB/s (343kB/s)(4976KiB/14859msec) slat (usec): min=1999, max=18767, avg=6042.34, stdev=2378.67 clat (msec): min=46, max=158, avg=87.29, stdev=17.37 lat (msec): min=50, max=164, avg=93.34, stdev=17.98 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 62], 10.00th=[ 66], 20.00th=[ 72], | 30.00th=[ 78], 40.00th=[ 82], 50.00th=[ 86], 60.00th=[ 91], | 70.00th=[ 95], 80.00th=[ 102], 90.00th=[ 111], 95.00th=[ 117], | 99.00th=[ 134], 99.50th=[ 144], 99.90th=[ 153], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 188, max= 440, per=24.79%, avg=334.62, stdev=58.52, samples=29 iops : min= 47, max= 110, avg=83.48, stdev=14.64, samples=29 write: IOPS=88, BW=354KiB/s (363kB/s)(5264KiB/14859msec); 0 zone resets slat (usec): min=32, max=4435, avg=182.54, stdev=273.32 clat (msec): min=46, max=154, avg=90.87, stdev=16.13 lat (msec): min=46, max=154, avg=91.06, stdev=16.14 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 68], 10.00th=[ 72], 20.00th=[ 78], | 30.00th=[ 82], 40.00th=[ 86], 50.00th=[ 89], 60.00th=[ 93], | 70.00th=[ 100], 80.00th=[ 105], 90.00th=[ 114], 95.00th=[ 120], | 99.00th=[ 134], 99.50th=[ 138], 99.90th=[ 153], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 233, max= 440, per=25.28%, avg=355.48, stdev=50.56, samples=29 iops : min= 58, max= 110, avg=88.69, stdev=12.61, samples=29 lat (msec) : 50=0.20%, 100=75.31%, 250=24.49% cpu : usr=0.34%, sys=3.03%, ctx=4830, 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=189561: Wed Sep 16 04:53:33 2026 read: IOPS=83, BW=336KiB/s (344kB/s)(4984KiB/14852msec) slat (usec): min=1809, max=19200, avg=6202.82, stdev=2488.19 clat (msec): min=46, max=157, avg=87.91, stdev=17.96 lat (msec): min=50, max=163, avg=94.12, stdev=18.62 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 63], 10.00th=[ 67], 20.00th=[ 73], | 30.00th=[ 78], 40.00th=[ 83], 50.00th=[ 86], 60.00th=[ 91], | 70.00th=[ 96], 80.00th=[ 103], 90.00th=[ 112], 95.00th=[ 121], | 99.00th=[ 138], 99.50th=[ 144], 99.90th=[ 153], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 194, max= 464, per=24.97%, avg=337.03, stdev=57.68, samples=29 iops : min= 48, max= 116, avg=84.07, stdev=14.47, samples=29 write: IOPS=88, BW=354KiB/s (362kB/s)(5256KiB/14852msec); 0 zone resets slat (usec): min=30, max=2926, avg=184.25, stdev=258.33 clat (msec): min=48, max=157, avg=90.11, stdev=15.71 lat (msec): min=48, max=157, avg=90.29, stdev=15.71 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 67], 10.00th=[ 71], 20.00th=[ 77], | 30.00th=[ 82], 40.00th=[ 86], 50.00th=[ 89], 60.00th=[ 94], | 70.00th=[ 97], 80.00th=[ 104], 90.00th=[ 112], 95.00th=[ 117], | 99.00th=[ 131], 99.50th=[ 134], 99.90th=[ 150], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 247, max= 464, per=25.19%, avg=354.17, stdev=55.79, samples=29 iops : min= 61, max= 116, avg=88.34, stdev=14.01, samples=29 lat (msec) : 50=0.20%, 100=75.94%, 250=23.87% cpu : usr=0.38%, sys=2.94%, ctx=4825, 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=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=189562: Wed Sep 16 04:53:33 2026 read: IOPS=85, BW=341KiB/s (349kB/s)(5060KiB/14848msec) slat (usec): min=1932, max=16974, avg=6010.65, stdev=2246.84 clat (msec): min=45, max=148, avg=87.09, stdev=17.26 lat (msec): min=52, max=153, avg=93.11, stdev=17.78 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 61], 10.00th=[ 66], 20.00th=[ 73], | 30.00th=[ 79], 40.00th=[ 83], 50.00th=[ 86], 60.00th=[ 90], | 70.00th=[ 94], 80.00th=[ 102], 90.00th=[ 111], 95.00th=[ 121], | 99.00th=[ 131], 99.50th=[ 134], 99.90th=[ 140], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 201, max= 456, per=25.31%, avg=341.66, stdev=53.46, samples=29 iops : min= 50, max= 114, avg=85.21, stdev=13.33, samples=29 write: IOPS=87, BW=349KiB/s (357kB/s)(5180KiB/14848msec); 0 zone resets slat (usec): min=34, max=4875, avg=194.54, stdev=318.96 clat (msec): min=52, max=143, avg=90.81, stdev=15.86 lat (msec): min=52, max=143, avg=91.01, stdev=15.85 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 66], 10.00th=[ 71], 20.00th=[ 78], | 30.00th=[ 83], 40.00th=[ 87], 50.00th=[ 91], 60.00th=[ 94], | 70.00th=[ 100], 80.00th=[ 104], 90.00th=[ 111], 95.00th=[ 120], | 99.00th=[ 133], 99.50th=[ 140], 99.90th=[ 142], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 240, max= 464, per=24.81%, avg=348.83, stdev=52.34, samples=29 iops : min= 60, max= 116, avg=87.03, stdev=13.10, samples=29 lat (msec) : 50=0.20%, 100=75.39%, 250=24.41% cpu : usr=0.36%, sys=3.00%, ctx=4915, 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=1351KiB/s (1383kB/s), 335KiB/s-343KiB/s (343kB/s-351kB/s), io=19.6MiB (20.5MB), run=14709-14859msec WRITE: bw=1406KiB/s (1440kB/s), 349KiB/s-354KiB/s (357kB/s-363kB/s), io=20.4MiB (21.4MB), run=14709-14859msec 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=189568: Wed Sep 16 04:53:38 2026 read: IOPS=4, BW=165MiB/s (173MB/s)(40.0MiB/243msec) slat (nsec): min=14090k, max=14090k, avg=14090262.00, stdev= 0.00 clat (nsec): min=218462k, max=218462k, avg=218462089.00, stdev= 0.00 lat (nsec): min=232557k, max=232557k, avg=232556873.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 220], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 220], 95.00th=[ 220], | 99.00th=[ 220], 99.50th=[ 220], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=4.96%, ctx=12, 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=165MiB/s (173MB/s), 165MiB/s-165MiB/s (173MB/s-173MB/s), io=40.0MiB (41.9MB), run=243-243msec 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