== sanity test 398c: run fio to test AIO ================= 21:39:42 (1787103582) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.157142 s, 267 MB/s osc.lustre-OST0000-osc-ffff897e0a4d2000.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=152405: Tue Aug 18 21:40:22 2026 write: IOPS=70, BW=280KiB/s (287kB/s)(10.0MiB/36519msec); 0 zone resets slat (usec): min=37, max=3565, avg=211.37, stdev=145.43 clat (msec): min=35, max=417, avg=227.90, stdev=50.28 lat (msec): min=35, max=417, avg=228.11, stdev=50.30 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 148], 10.00th=[ 174], 20.00th=[ 192], | 30.00th=[ 203], 40.00th=[ 215], 50.00th=[ 226], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 266], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 418] bw ( KiB/s): min= 152, max= 520, per=25.02%, avg=279.96, stdev=51.54, samples=72 iops : min= 38, max= 130, avg=69.89, stdev=12.93, samples=72 lat (msec) : 50=0.62%, 100=0.20%, 250=69.22%, 500=29.96% cpu : usr=0.16%, sys=1.17%, ctx=2770, 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=152406: Tue Aug 18 21:40:22 2026 write: IOPS=70, BW=280KiB/s (287kB/s)(10.0MiB/36557msec); 0 zone resets slat (usec): min=37, max=3720, avg=205.61, stdev=146.65 clat (msec): min=57, max=394, avg=228.06, stdev=48.72 lat (msec): min=57, max=394, avg=228.26, stdev=48.73 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 148], 10.00th=[ 174], 20.00th=[ 192], | 30.00th=[ 203], 40.00th=[ 215], 50.00th=[ 226], 60.00th=[ 239], | 70.00th=[ 249], 80.00th=[ 266], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 363], 99.50th=[ 372], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 397] bw ( KiB/s): min= 184, max= 513, per=24.92%, avg=278.86, stdev=51.96, samples=72 iops : min= 46, max= 128, avg=69.61, stdev=13.02, samples=72 lat (msec) : 100=0.70%, 250=69.84%, 500=29.45% cpu : usr=0.17%, sys=1.10%, ctx=2817, 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=152407: Tue Aug 18 21:40:22 2026 write: IOPS=70, BW=280KiB/s (287kB/s)(10.0MiB/36557msec); 0 zone resets slat (usec): min=38, max=4146, avg=210.91, stdev=165.47 clat (msec): min=43, max=407, avg=228.11, stdev=48.76 lat (msec): min=43, max=407, avg=228.32, stdev=48.77 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 153], 10.00th=[ 176], 20.00th=[ 192], | 30.00th=[ 205], 40.00th=[ 215], 50.00th=[ 226], 60.00th=[ 236], | 70.00th=[ 251], 80.00th=[ 268], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 363], 99.50th=[ 376], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 409] bw ( KiB/s): min= 184, max= 513, per=24.90%, avg=278.64, stdev=52.98, samples=72 iops : min= 46, max= 128, avg=69.56, stdev=13.27, samples=72 lat (msec) : 50=0.62%, 100=0.04%, 250=69.26%, 500=30.08% cpu : usr=0.13%, sys=1.12%, ctx=2788, 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=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=152408: Tue Aug 18 21:40:22 2026 write: IOPS=69, BW=280KiB/s (287kB/s)(10.0MiB/36578msec); 0 zone resets slat (usec): min=41, max=3573, avg=212.45, stdev=155.02 clat (msec): min=23, max=393, avg=228.16, stdev=47.95 lat (msec): min=24, max=394, avg=228.37, stdev=47.96 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 153], 10.00th=[ 176], 20.00th=[ 192], | 30.00th=[ 205], 40.00th=[ 215], 50.00th=[ 226], 60.00th=[ 234], | 70.00th=[ 251], 80.00th=[ 266], 90.00th=[ 288], 95.00th=[ 309], | 99.00th=[ 368], 99.50th=[ 376], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 168, max= 455, per=24.90%, avg=278.61, stdev=47.36, samples=72 iops : min= 42, max= 113, avg=69.54, stdev=11.83, samples=72 lat (msec) : 50=0.08%, 100=0.90%, 250=68.91%, 500=30.12% cpu : usr=0.14%, sys=1.14%, ctx=2852, 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=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=1120KiB/s (1147kB/s), 280KiB/s-280KiB/s (287kB/s-287kB/s), io=40.0MiB (41.9MB), run=36519-36578msec 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=152423: Tue Aug 18 21:40:56 2026 read: IOPS=40, BW=163KiB/s (166kB/s)(5048KiB/31049msec) slat (usec): min=1350, max=13554, avg=4050.72, stdev=1832.38 clat (msec): min=3, max=298, avg=122.57, stdev=29.10 lat (msec): min=8, max=305, avg=126.62, stdev=29.52 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 82], 10.00th=[ 89], 20.00th=[ 100], | 30.00th=[ 107], 40.00th=[ 114], 50.00th=[ 120], 60.00th=[ 129], | 70.00th=[ 138], 80.00th=[ 146], 90.00th=[ 161], 95.00th=[ 171], | 99.00th=[ 192], 99.50th=[ 203], 99.90th=[ 251], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 72, max= 272, per=25.23%, avg=163.00, stdev=42.76, samples=61 iops : min= 18, max= 68, avg=40.56, stdev=10.70, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5192KiB/31049msec); 0 zone resets slat (usec): min=45, max=8250, avg=210.47, stdev=276.10 clat (msec): min=90, max=525, avg=258.64, stdev=69.08 lat (msec): min=90, max=525, avg=258.85, stdev=69.08 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 150], 10.00th=[ 174], 20.00th=[ 203], | 30.00th=[ 222], 40.00th=[ 239], 50.00th=[ 255], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 313], 90.00th=[ 347], 95.00th=[ 388], | 99.00th=[ 451], 99.50th=[ 460], 99.90th=[ 477], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 95, max= 240, per=24.88%, avg=167.20, stdev=33.53, samples=61 iops : min= 23, max= 60, avg=41.61, stdev= 8.44, samples=61 lat (msec) : 4=0.04%, 10=0.04%, 20=0.04%, 50=0.23%, 100=10.23% lat (msec) : 250=62.81%, 500=26.56%, 750=0.04% cpu : usr=0.18%, sys=1.55%, ctx=5021, 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=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=152424: Tue Aug 18 21:40:56 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(4976KiB/31057msec) slat (usec): min=1222, max=12475, avg=4044.26, stdev=1850.77 clat (msec): min=9, max=197, avg=122.18, stdev=28.91 lat (msec): min=12, max=201, avg=126.23, stdev=29.36 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 82], 10.00th=[ 90], 20.00th=[ 99], | 30.00th=[ 105], 40.00th=[ 112], 50.00th=[ 120], 60.00th=[ 128], | 70.00th=[ 138], 80.00th=[ 148], 90.00th=[ 165], 95.00th=[ 174], | 99.00th=[ 188], 99.50th=[ 190], 99.90th=[ 192], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 72, max= 264, per=24.63%, avg=159.13, stdev=44.74, samples=61 iops : min= 18, max= 66, avg=39.59, stdev=11.21, samples=61 write: IOPS=42, BW=169KiB/s (174kB/s)(5264KiB/31057msec); 0 zone resets slat (usec): min=53, max=5508, avg=219.52, stdev=293.25 clat (msec): min=66, max=472, avg=257.65, stdev=70.00 lat (msec): min=66, max=472, avg=257.88, stdev=70.01 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 150], 10.00th=[ 176], 20.00th=[ 201], | 30.00th=[ 222], 40.00th=[ 236], 50.00th=[ 253], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 313], 90.00th=[ 355], 95.00th=[ 384], | 99.00th=[ 435], 99.50th=[ 439], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 104, max= 272, per=25.09%, avg=168.61, stdev=34.84, samples=61 iops : min= 26, max= 68, avg=41.95, stdev= 8.72, samples=61 lat (msec) : 10=0.04%, 20=0.16%, 50=0.16%, 100=11.80%, 250=61.05% lat (msec) : 500=26.80% cpu : usr=0.16%, sys=1.53%, ctx=5036, 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=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=152425: Tue Aug 18 21:40:56 2026 read: IOPS=40, BW=161KiB/s (164kB/s)(4984KiB/31026msec) slat (usec): min=56, max=17563, avg=4052.25, stdev=1887.64 clat (msec): min=5, max=227, avg=121.88, stdev=30.27 lat (msec): min=8, max=232, avg=125.93, stdev=30.78 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 80], 10.00th=[ 88], 20.00th=[ 99], | 30.00th=[ 106], 40.00th=[ 113], 50.00th=[ 121], 60.00th=[ 129], | 70.00th=[ 138], 80.00th=[ 146], 90.00th=[ 163], 95.00th=[ 176], | 99.00th=[ 190], 99.50th=[ 197], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 64, max= 255, per=25.02%, avg=161.66, stdev=45.46, samples=61 iops : min= 16, max= 63, avg=40.21, stdev=11.34, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5256KiB/31026msec); 0 zone resets slat (usec): min=39, max=2553, avg=204.10, stdev=181.20 clat (msec): min=31, max=531, avg=257.85, stdev=72.68 lat (msec): min=31, max=531, avg=258.06, stdev=72.70 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 144], 10.00th=[ 165], 20.00th=[ 201], | 30.00th=[ 222], 40.00th=[ 239], 50.00th=[ 255], 60.00th=[ 275], | 70.00th=[ 292], 80.00th=[ 313], 90.00th=[ 359], 95.00th=[ 388], | 99.00th=[ 426], 99.50th=[ 456], 99.90th=[ 481], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 119, max= 250, per=25.08%, avg=168.54, stdev=36.85, samples=61 iops : min= 29, max= 62, avg=41.93, stdev= 9.27, samples=61 lat (msec) : 10=0.16%, 20=0.27%, 50=0.39%, 100=10.70%, 250=61.48% lat (msec) : 500=26.95%, 750=0.04% cpu : usr=0.16%, sys=1.54%, ctx=4956, 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=152426: Tue Aug 18 21:40:56 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5060KiB/31010msec) slat (usec): min=1298, max=12795, avg=4037.81, stdev=1870.51 clat (msec): min=3, max=349, avg=123.23, stdev=31.83 lat (msec): min=9, max=357, avg=127.27, stdev=32.23 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 81], 10.00th=[ 89], 20.00th=[ 100], | 30.00th=[ 108], 40.00th=[ 113], 50.00th=[ 122], 60.00th=[ 130], | 70.00th=[ 138], 80.00th=[ 148], 90.00th=[ 163], 95.00th=[ 176], | 99.00th=[ 194], 99.50th=[ 213], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 71, max= 240, per=25.37%, avg=163.89, stdev=42.54, samples=61 iops : min= 17, max= 60, avg=40.77, stdev=10.63, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5180KiB/31010msec); 0 zone resets slat (usec): min=36, max=2319, avg=202.82, stdev=163.87 clat (msec): min=39, max=542, avg=257.97, stdev=69.83 lat (msec): min=39, max=542, avg=258.18, stdev=69.83 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 148], 10.00th=[ 174], 20.00th=[ 203], | 30.00th=[ 222], 40.00th=[ 236], 50.00th=[ 255], 60.00th=[ 271], | 70.00th=[ 292], 80.00th=[ 313], 90.00th=[ 351], 95.00th=[ 384], | 99.00th=[ 447], 99.50th=[ 464], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 96, max= 247, per=24.79%, avg=166.61, stdev=33.72, samples=61 iops : min= 24, max= 61, avg=41.46, stdev= 8.50, samples=61 lat (msec) : 4=0.04%, 10=0.08%, 20=0.23%, 50=0.23%, 100=10.39% lat (msec) : 250=62.58%, 500=26.33%, 750=0.12% cpu : usr=0.18%, sys=1.50%, ctx=5051, 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=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=646KiB/s (662kB/s), 160KiB/s-163KiB/s (164kB/s-167kB/s), io=19.6MiB (20.5MB), run=31010-31057msec WRITE: bw=673KiB/s (689kB/s), 167KiB/s-169KiB/s (171kB/s-174kB/s), io=20.4MiB (21.4MB), run=31010-31057msec 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=152433: Tue Aug 18 21:41:00 2026 read: IOPS=6, BW=267MiB/s (280MB/s)(40.0MiB/150msec) slat (nsec): min=20998k, max=20998k, avg=20998199.00, stdev= 0.00 clat (nsec): min=119743k, max=119743k, avg=119742884.00, stdev= 0.00 lat (nsec): min=140745k, max=140745k, avg=140745231.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 121], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 121], 60.00th=[ 121], | 70.00th=[ 121], 80.00th=[ 121], 90.00th=[ 121], 95.00th=[ 121], | 99.00th=[ 121], 99.50th=[ 121], 99.90th=[ 121], 99.95th=[ 121], | 99.99th=[ 121] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=8.05%, ctx=41, 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=267MiB/s (280MB/s), 267MiB/s-267MiB/s (280MB/s-280MB/s), io=40.0MiB (41.9MB), run=150-150msec 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