== sanity test 398c: run fio to test AIO ================= 23:28:25 (1789270105) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.469706 s, 89.3 MB/s osc.lustre-OST0000-osc-ffff945650470000.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=179459: Sat Sep 12 23:29:03 2026 write: IOPS=92, BW=371KiB/s (380kB/s)(10.0MiB/27599msec); 0 zone resets slat (usec): min=20, max=15786, avg=212.83, stdev=754.45 clat (msec): min=44, max=321, avg=171.41, stdev=47.59 lat (msec): min=44, max=321, avg=171.63, stdev=47.57 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 104], 10.00th=[ 115], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 313], 99.50th=[ 317], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 205, max= 523, per=24.81%, avg=368.00, stdev=76.86, samples=54 iops : min= 51, max= 130, avg=91.59, stdev=19.24, samples=54 lat (msec) : 50=0.04%, 100=3.67%, 250=88.83%, 500=7.46% cpu : usr=0.17%, sys=0.94%, ctx=1995, 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=179460: Sat Sep 12 23:29:03 2026 write: IOPS=93, BW=373KiB/s (382kB/s)(10.0MiB/27444msec); 0 zone resets slat (usec): min=21, max=17511, avg=192.79, stdev=711.86 clat (msec): min=16, max=323, avg=171.18, stdev=47.60 lat (msec): min=17, max=323, avg=171.37, stdev=47.63 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 105], 10.00th=[ 118], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 241], 95.00th=[ 264], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 213, max= 606, per=25.04%, avg=371.28, stdev=89.38, samples=54 iops : min= 53, max= 151, avg=92.43, stdev=22.36, samples=54 lat (msec) : 20=0.04%, 50=0.66%, 100=2.50%, 250=89.41%, 500=7.38% cpu : usr=0.16%, sys=0.91%, ctx=1933, 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=179461: Sat Sep 12 23:29:03 2026 write: IOPS=92, BW=371KiB/s (380kB/s)(10.0MiB/27597msec); 0 zone resets slat (usec): min=21, max=14036, avg=238.56, stdev=797.89 clat (msec): min=21, max=339, avg=171.59, stdev=46.32 lat (msec): min=21, max=339, avg=171.83, stdev=46.36 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 106], 10.00th=[ 117], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 237, max= 571, per=24.72%, avg=366.67, stdev=79.50, samples=54 iops : min= 59, max= 142, avg=91.26, stdev=19.87, samples=54 lat (msec) : 50=0.08%, 100=3.09%, 250=89.65%, 500=7.19% cpu : usr=0.23%, sys=0.96%, ctx=2458, 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=179462: Sat Sep 12 23:29:03 2026 write: IOPS=92, BW=371KiB/s (380kB/s)(10.0MiB/27611msec); 0 zone resets slat (usec): min=22, max=16117, avg=284.22, stdev=946.61 clat (msec): min=18, max=338, avg=171.63, stdev=47.57 lat (msec): min=20, max=338, avg=171.91, stdev=47.59 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 104], 10.00th=[ 117], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 209], 90.00th=[ 241], 95.00th=[ 262], | 99.00th=[ 309], 99.50th=[ 313], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 221, max= 595, per=24.83%, avg=368.30, stdev=85.31, samples=54 iops : min= 55, max= 148, avg=91.70, stdev=21.28, samples=54 lat (msec) : 20=0.04%, 50=0.23%, 100=3.71%, 250=88.75%, 500=7.27% cpu : usr=0.20%, sys=1.09%, ctx=2932, 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=1483KiB/s (1519kB/s), 371KiB/s-373KiB/s (380kB/s-382kB/s), io=40.0MiB (41.9MB), run=27444-27611msec 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=179475: Sat Sep 12 23:29:40 2026 read: IOPS=43, BW=173KiB/s (177kB/s)(5048KiB/29197msec) slat (usec): min=51, max=58356, avg=12958.47, stdev=8061.65 clat (msec): min=30, max=369, avg=173.17, stdev=52.33 lat (msec): min=42, max=393, avg=186.13, stdev=54.84 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 104], 10.00th=[ 114], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 180], | 70.00th=[ 197], 80.00th=[ 218], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 71, max= 295, per=25.23%, avg=172.86, stdev=43.94, samples=57 iops : min= 17, max= 73, avg=42.70, stdev=11.04, samples=57 write: IOPS=44, BW=178KiB/s (182kB/s)(5192KiB/29197msec); 0 zone resets slat (usec): min=28, max=9903, avg=286.48, stdev=768.64 clat (msec): min=62, max=361, avg=178.12, stdev=50.79 lat (msec): min=62, max=361, avg=178.41, stdev=50.78 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 109], 10.00th=[ 121], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 159], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 71, max= 302, per=24.94%, avg=177.84, stdev=48.31, samples=57 iops : min= 17, max= 75, avg=43.95, stdev=12.12, samples=57 lat (msec) : 50=0.04%, 100=2.66%, 250=87.66%, 500=9.65% cpu : usr=0.32%, sys=1.99%, ctx=4253, 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=179476: Sat Sep 12 23:29:40 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(4976KiB/29151msec) slat (usec): min=2196, max=57377, avg=13149.71, stdev=7530.48 clat (msec): min=21, max=350, avg=172.24, stdev=50.94 lat (msec): min=29, max=377, avg=185.40, stdev=53.38 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 102], 10.00th=[ 113], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 197], 80.00th=[ 215], 90.00th=[ 243], 95.00th=[ 266], | 99.00th=[ 313], 99.50th=[ 330], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 62, max= 287, per=24.71%, avg=169.26, stdev=46.33, samples=58 iops : min= 15, max= 71, avg=41.76, stdev=11.65, samples=58 write: IOPS=45, BW=181KiB/s (185kB/s)(5264KiB/29151msec); 0 zone resets slat (usec): min=24, max=7842, avg=265.48, stdev=643.97 clat (msec): min=51, max=340, avg=176.07, stdev=51.22 lat (msec): min=51, max=341, avg=176.34, stdev=51.22 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 109], 10.00th=[ 118], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 155], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 249], 95.00th=[ 279], | 99.00th=[ 313], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 95, max= 296, per=25.23%, avg=179.86, stdev=53.31, samples=58 iops : min= 23, max= 74, avg=44.40, stdev=13.36, samples=58 lat (msec) : 50=0.04%, 100=3.24%, 250=87.93%, 500=8.79% cpu : usr=0.30%, sys=2.05%, ctx=4420, 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=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=179477: Sat Sep 12 23:29:40 2026 read: IOPS=42, BW=170KiB/s (174kB/s)(4984KiB/29272msec) slat (usec): min=2204, max=56440, avg=12969.76, stdev=8199.01 clat (msec): min=23, max=373, avg=171.81, stdev=51.40 lat (msec): min=31, max=387, avg=184.78, stdev=54.27 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 104], 10.00th=[ 113], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 150], 50.00th=[ 163], 60.00th=[ 178], | 70.00th=[ 197], 80.00th=[ 215], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 300], 99.50th=[ 305], 99.90th=[ 368], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 62, max= 304, per=24.87%, avg=170.34, stdev=51.93, samples=58 iops : min= 15, max= 76, avg=42.03, stdev=13.02, samples=58 write: IOPS=44, BW=180KiB/s (184kB/s)(5256KiB/29272msec); 0 zone resets slat (usec): min=25, max=11370, avg=245.56, stdev=641.69 clat (msec): min=77, max=358, avg=177.38, stdev=51.75 lat (msec): min=78, max=358, avg=177.63, stdev=51.75 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 108], 10.00th=[ 116], 20.00th=[ 130], | 30.00th=[ 144], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 220], 90.00th=[ 247], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 338], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 71, max= 287, per=25.05%, avg=178.64, stdev=51.82, samples=58 iops : min= 17, max= 71, avg=44.10, stdev=13.01, samples=58 lat (msec) : 50=0.04%, 100=2.66%, 250=88.20%, 500=9.10% cpu : usr=0.32%, sys=2.10%, ctx=4657, 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=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=179478: Sat Sep 12 23:29:40 2026 read: IOPS=43, BW=173KiB/s (177kB/s)(5060KiB/29296msec) slat (usec): min=2767, max=65306, avg=12663.73, stdev=7656.76 clat (msec): min=29, max=370, avg=171.83, stdev=52.37 lat (msec): min=51, max=397, avg=184.50, stdev=55.07 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 103], 10.00th=[ 113], 20.00th=[ 127], | 30.00th=[ 138], 40.00th=[ 150], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 194], 80.00th=[ 215], 90.00th=[ 245], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 351], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 54, max= 304, per=25.07%, avg=171.74, stdev=48.90, samples=58 iops : min= 13, max= 76, avg=42.38, stdev=12.32, samples=58 write: IOPS=44, BW=177KiB/s (181kB/s)(5180KiB/29296msec); 0 zone resets slat (usec): min=25, max=18520, avg=248.91, stdev=764.40 clat (msec): min=51, max=362, avg=177.68, stdev=51.90 lat (msec): min=51, max=363, avg=177.93, stdev=51.91 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 110], 10.00th=[ 118], 20.00th=[ 131], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 251], 95.00th=[ 279], | 99.00th=[ 317], 99.50th=[ 321], 99.90th=[ 359], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 56, max= 295, per=24.61%, avg=175.45, stdev=46.99, samples=58 iops : min= 14, max= 73, avg=43.31, stdev=11.75, samples=58 lat (msec) : 50=0.04%, 100=3.01%, 250=87.34%, 500=9.61% cpu : usr=0.32%, sys=2.11%, ctx=4241, majf=0, minf=16 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=685KiB/s (701kB/s), 170KiB/s-173KiB/s (174kB/s-177kB/s), io=19.6MiB (20.5MB), run=29151-29296msec WRITE: bw=713KiB/s (730kB/s), 177KiB/s-181KiB/s (181kB/s-185kB/s), io=20.4MiB (21.4MB), run=29151-29296msec 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=179488: Sat Sep 12 23:29:51 2026 read: IOPS=1, BW=59.6MiB/s (62.5MB/s)(40.0MiB/671msec) slat (nsec): min=19414k, max=19414k, avg=19414171.00, stdev= 0.00 clat (nsec): min=615111k, max=615111k, avg=615111371.00, stdev= 0.00 lat (nsec): min=634555k, max=634555k, avg=634555164.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.64%, ctx=4, 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=59.6MiB/s (62.5MB/s), 59.6MiB/s-59.6MiB/s (62.5MB/s-62.5MB/s), io=40.0MiB (41.9MB), run=671-671msec 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