== sanity test 398c: run fio to test AIO ================= 11:24:40 (1786807480) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.550561 s, 76.2 MB/s osc.lustre-OST0000-osc-ffff8bde51695000.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=180040: Sat Aug 15 11:25:14 2026 write: IOPS=98, BW=392KiB/s (402kB/s)(10.0MiB/26091msec); 0 zone resets slat (usec): min=53, max=15016, avg=332.22, stdev=802.11 clat (msec): min=20, max=333, avg=162.14, stdev=34.25 lat (msec): min=21, max=335, avg=162.48, stdev=34.26 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 108], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 215], | 99.00th=[ 262], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 262, max= 517, per=25.00%, avg=392.27, stdev=62.27, samples=51 iops : min= 65, max= 129, avg=97.71, stdev=15.59, samples=51 lat (msec) : 50=0.04%, 100=2.15%, 250=96.41%, 500=1.41% cpu : usr=0.24%, sys=1.43%, ctx=2862, 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=180041: Sat Aug 15 11:25:14 2026 write: IOPS=98, BW=392KiB/s (402kB/s)(10.0MiB/26094msec); 0 zone resets slat (usec): min=47, max=16095, avg=311.48, stdev=868.00 clat (msec): min=74, max=323, avg=161.93, stdev=33.51 lat (msec): min=74, max=323, avg=162.25, stdev=33.50 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 110], 10.00th=[ 118], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 203], 95.00th=[ 211], | 99.00th=[ 243], 99.50th=[ 305], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 262, max= 637, per=24.95%, avg=391.51, stdev=68.62, samples=51 iops : min= 65, max= 159, avg=97.51, stdev=17.20, samples=51 lat (msec) : 100=1.33%, 250=98.05%, 500=0.62% cpu : usr=0.14%, sys=1.25%, ctx=2685, 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=180042: Sat Aug 15 11:25:14 2026 write: IOPS=98, BW=394KiB/s (404kB/s)(10.0MiB/25977msec); 0 zone resets slat (usec): min=51, max=11178, avg=358.97, stdev=826.32 clat (msec): min=22, max=319, avg=161.81, stdev=34.36 lat (msec): min=23, max=319, avg=162.18, stdev=34.32 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 188], 90.00th=[ 203], 95.00th=[ 213], | 99.00th=[ 251], 99.50th=[ 284], 99.90th=[ 317], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 302, max= 573, per=25.12%, avg=394.18, stdev=61.98, samples=51 iops : min= 75, max= 143, avg=98.18, stdev=15.56, samples=51 lat (msec) : 50=0.23%, 100=2.50%, 250=96.29%, 500=0.98% cpu : usr=0.15%, sys=1.51%, ctx=2965, 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=180043: Sat Aug 15 11:25:14 2026 write: IOPS=98, BW=393KiB/s (402kB/s)(10.0MiB/26081msec); 0 zone resets slat (usec): min=49, max=22463, avg=313.02, stdev=835.90 clat (msec): min=22, max=315, avg=162.00, stdev=34.00 lat (msec): min=23, max=315, avg=162.32, stdev=34.02 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 113], 10.00th=[ 118], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 188], 90.00th=[ 201], 95.00th=[ 213], | 99.00th=[ 264], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 262, max= 517, per=25.02%, avg=392.55, stdev=54.73, samples=51 iops : min= 65, max= 129, avg=97.76, stdev=13.70, samples=51 lat (msec) : 50=0.08%, 100=2.23%, 250=96.29%, 500=1.41% cpu : usr=0.18%, sys=1.37%, ctx=2724, 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=1570KiB/s (1607kB/s), 392KiB/s-394KiB/s (402kB/s-404kB/s), io=40.0MiB (41.9MB), run=25977-26094msec 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=180059: Sat Aug 15 11:25:52 2026 read: IOPS=43, BW=175KiB/s (179kB/s)(5048KiB/28847msec) slat (usec): min=2970, max=72081, avg=12705.39, stdev=6928.27 clat (msec): min=54, max=333, avg=170.29, stdev=43.11 lat (msec): min=63, max=352, avg=183.00, stdev=44.60 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 207], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 64, max= 246, per=25.09%, avg=174.40, stdev=38.91, samples=57 iops : min= 16, max= 61, avg=43.21, stdev= 9.70, samples=57 write: IOPS=44, BW=180KiB/s (184kB/s)(5192KiB/28847msec); 0 zone resets slat (usec): min=57, max=8930, avg=303.54, stdev=634.30 clat (msec): min=19, max=314, avg=174.09, stdev=39.14 lat (msec): min=20, max=314, avg=174.40, stdev=39.11 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 121], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 228], 95.00th=[ 251], | 99.00th=[ 284], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 57, max= 261, per=24.86%, avg=179.70, stdev=42.14, samples=57 iops : min= 14, max= 65, avg=44.54, stdev=10.58, samples=57 lat (msec) : 20=0.04%, 50=0.04%, 100=1.13%, 250=93.71%, 500=5.08% cpu : usr=0.23%, sys=2.26%, ctx=4646, 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=180060: Sat Aug 15 11:25:52 2026 read: IOPS=43, BW=173KiB/s (178kB/s)(4976KiB/28703msec) slat (usec): min=82, max=68800, avg=12755.50, stdev=6953.51 clat (msec): min=36, max=327, avg=169.48, stdev=40.91 lat (msec): min=38, max=332, avg=182.24, stdev=42.56 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 111], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 247], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 309], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 86, max= 304, per=24.85%, avg=172.70, stdev=45.30, samples=56 iops : min= 21, max= 76, avg=42.77, stdev=11.38, samples=56 write: IOPS=45, BW=183KiB/s (188kB/s)(5264KiB/28703msec); 0 zone resets slat (usec): min=60, max=18956, avg=362.66, stdev=982.46 clat (msec): min=43, max=319, avg=175.65, stdev=38.97 lat (msec): min=43, max=319, avg=176.02, stdev=38.99 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 123], 10.00th=[ 131], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 207], 90.00th=[ 232], 95.00th=[ 249], | 99.00th=[ 284], 99.50th=[ 300], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 103, max= 263, per=25.28%, avg=182.80, stdev=36.76, samples=56 iops : min= 25, max= 65, avg=45.32, stdev= 9.21, samples=56 lat (msec) : 50=0.16%, 100=0.74%, 250=94.92%, 500=4.18% cpu : usr=0.31%, sys=2.28%, ctx=4579, 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=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=180061: Sat Aug 15 11:25:52 2026 read: IOPS=43, BW=173KiB/s (177kB/s)(4984KiB/28821msec) slat (usec): min=2629, max=53189, avg=12805.54, stdev=6904.38 clat (msec): min=47, max=322, avg=171.05, stdev=41.50 lat (msec): min=58, max=349, avg=183.86, stdev=43.22 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 113], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 50, max= 295, per=24.92%, avg=173.19, stdev=38.81, samples=57 iops : min= 12, max= 73, avg=42.89, stdev= 9.71, samples=57 write: IOPS=45, BW=182KiB/s (187kB/s)(5256KiB/28821msec); 0 zone resets slat (usec): min=52, max=9154, avg=377.90, stdev=740.82 clat (msec): min=89, max=316, avg=173.02, stdev=37.00 lat (msec): min=89, max=316, avg=173.40, stdev=37.01 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 124], 10.00th=[ 132], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 247], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 78, max= 272, per=25.10%, avg=181.51, stdev=44.68, samples=57 iops : min= 19, max= 68, avg=44.98, stdev=11.21, samples=57 lat (msec) : 50=0.04%, 100=1.09%, 250=94.34%, 500=4.53% cpu : usr=0.29%, sys=2.28%, ctx=4496, 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=180062: Sat Aug 15 11:25:52 2026 read: IOPS=43, BW=175KiB/s (180kB/s)(5060KiB/28857msec) slat (usec): min=2986, max=64088, avg=12998.65, stdev=7100.74 clat (msec): min=48, max=317, avg=171.20, stdev=43.21 lat (msec): min=81, max=338, avg=184.21, stdev=44.58 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 113], 10.00th=[ 124], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 207], 90.00th=[ 234], 95.00th=[ 251], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 57, max= 248, per=25.21%, avg=175.23, stdev=39.65, samples=57 iops : min= 14, max= 62, avg=43.42, stdev= 9.91, samples=57 write: IOPS=44, BW=180KiB/s (184kB/s)(5180KiB/28857msec); 0 zone resets slat (usec): min=56, max=12024, avg=323.52, stdev=685.76 clat (msec): min=53, max=327, avg=173.41, stdev=38.73 lat (msec): min=53, max=327, avg=173.74, stdev=38.73 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 123], 10.00th=[ 130], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 228], 95.00th=[ 251], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 317], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 86, max= 279, per=24.65%, avg=178.25, stdev=41.67, samples=57 iops : min= 21, max= 69, avg=44.18, stdev=10.44, samples=57 lat (msec) : 50=0.04%, 100=1.29%, 250=93.59%, 500=5.08% cpu : usr=0.24%, sys=2.09%, ctx=4635, 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=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=695KiB/s (712kB/s), 173KiB/s-175KiB/s (177kB/s-180kB/s), io=19.6MiB (20.5MB), run=28703-28857msec WRITE: bw=724KiB/s (741kB/s), 180KiB/s-183KiB/s (184kB/s-188kB/s), io=20.4MiB (21.4MB), run=28703-28857msec 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=180070: Sat Aug 15 11:26:00 2026 read: IOPS=2, BW=107MiB/s (112MB/s)(40.0MiB/373msec) slat (nsec): min=44067k, max=44067k, avg=44066844.00, stdev= 0.00 clat (nsec): min=302546k, max=302546k, avg=302545533.00, stdev= 0.00 lat (nsec): min=346617k, max=346617k, avg=346616840.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.96%, ctx=13, 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=107MiB/s (112MB/s), 107MiB/s-107MiB/s (112MB/s-112MB/s), io=40.0MiB (41.9MB), run=373-373msec 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