== sanity test 398c: run fio to test AIO ================= 18:57:28 (1787698648) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.12492 s, 336 MB/s osc.lustre-OST0000-osc-ffff9a42e171a000.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=161403: Tue Aug 25 18:58:01 2026 write: IOPS=86, BW=345KiB/s (353kB/s)(10.0MiB/29701msec); 0 zone resets slat (usec): min=22, max=704, avg=127.09, stdev=63.98 clat (msec): min=36, max=292, avg=185.42, stdev=33.36 lat (msec): min=36, max=292, avg=185.54, stdev=33.36 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 163], | 30.00th=[ 171], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 239], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 256, max= 615, per=24.93%, avg=342.49, stdev=51.10, samples=59 iops : min= 64, max= 153, avg=85.61, stdev=12.71, samples=59 lat (msec) : 50=0.62%, 100=0.94%, 250=95.94%, 500=2.50% cpu : usr=0.15%, sys=0.98%, ctx=2740, 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=161404: Tue Aug 25 18:58:01 2026 write: IOPS=85, BW=344KiB/s (352kB/s)(10.0MiB/29792msec); 0 zone resets slat (usec): min=22, max=1699, avg=130.97, stdev=77.19 clat (msec): min=77, max=302, avg=185.86, stdev=32.75 lat (msec): min=77, max=302, avg=185.99, stdev=32.76 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 163], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 268], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 305] bw ( KiB/s): min= 256, max= 512, per=24.90%, avg=342.10, stdev=43.22, samples=59 iops : min= 64, max= 128, avg=85.53, stdev=10.80, samples=59 lat (msec) : 100=1.41%, 250=95.51%, 500=3.09% cpu : usr=0.11%, sys=1.03%, ctx=2785, 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=161405: Tue Aug 25 18:58:01 2026 write: IOPS=85, BW=344KiB/s (352kB/s)(10.0MiB/29773msec); 0 zone resets slat (usec): min=21, max=899, avg=125.93, stdev=67.21 clat (msec): min=48, max=298, avg=185.80, stdev=33.47 lat (msec): min=48, max=299, avg=185.93, stdev=33.47 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 163], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 268], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 300] bw ( KiB/s): min= 264, max= 615, per=24.93%, avg=342.49, stdev=50.80, samples=59 iops : min= 66, max= 153, avg=85.61, stdev=12.63, samples=59 lat (msec) : 50=0.62%, 100=0.82%, 250=95.82%, 500=2.73% cpu : usr=0.13%, sys=0.97%, ctx=2797, 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=161406: Tue Aug 25 18:58:01 2026 write: IOPS=85, BW=344KiB/s (352kB/s)(10.0MiB/29783msec); 0 zone resets slat (usec): min=23, max=720, avg=123.04, stdev=65.18 clat (msec): min=22, max=301, avg=185.83, stdev=33.80 lat (msec): min=23, max=301, avg=185.95, stdev=33.80 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 203], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 268], 99.50th=[ 275], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 264, max= 532, per=24.95%, avg=342.85, stdev=45.41, samples=59 iops : min= 66, max= 133, avg=85.71, stdev=11.35, samples=59 lat (msec) : 50=0.08%, 100=1.52%, 250=95.04%, 500=3.36% cpu : usr=0.13%, sys=0.96%, ctx=2781, 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=1375KiB/s (1408kB/s), 344KiB/s-345KiB/s (352kB/s-353kB/s), io=40.0MiB (41.9MB), run=29701-29792msec 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=161420: Tue Aug 25 18:58:23 2026 read: IOPS=68, BW=273KiB/s (280kB/s)(5048KiB/18493msec) slat (usec): min=945, max=5220, avg=2233.46, stdev=707.24 clat (msec): min=3, max=162, avg=72.26, stdev=11.86 lat (msec): min=6, max=163, avg=74.49, stdev=11.89 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 64], | 30.00th=[ 67], 40.00th=[ 69], 50.00th=[ 72], 60.00th=[ 75], | 70.00th=[ 79], 80.00th=[ 82], 90.00th=[ 87], 95.00th=[ 90], | 99.00th=[ 99], 99.50th=[ 102], 99.90th=[ 140], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 176, max= 384, per=25.21%, avg=273.22, stdev=47.57, samples=36 iops : min= 44, max= 96, avg=68.31, stdev=11.89, samples=36 write: IOPS=70, BW=281KiB/s (287kB/s)(5192KiB/18493msec); 0 zone resets slat (usec): min=28, max=412, avg=103.44, stdev=52.68 clat (msec): min=54, max=259, avg=154.86, stdev=32.68 lat (msec): min=54, max=259, avg=154.96, stdev=32.68 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 101], 10.00th=[ 112], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 182], 90.00th=[ 197], 95.00th=[ 209], | 99.00th=[ 230], 99.50th=[ 243], 99.90th=[ 257], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 224, max= 352, per=24.89%, avg=280.97, stdev=30.17, samples=36 iops : min= 56, max= 88, avg=70.22, stdev= 7.57, samples=36 lat (msec) : 4=0.04%, 10=0.08%, 20=0.12%, 50=0.47%, 100=50.74% lat (msec) : 250=48.44%, 500=0.12% cpu : usr=0.17%, sys=1.73%, ctx=4797, 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=161421: Tue Aug 25 18:58:23 2026 read: IOPS=67, BW=270KiB/s (277kB/s)(4976KiB/18414msec) slat (usec): min=29, max=6553, avg=2255.71, stdev=720.42 clat (msec): min=4, max=212, avg=71.97, stdev=14.61 lat (msec): min=5, max=214, avg=74.23, stdev=14.67 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 64], | 30.00th=[ 67], 40.00th=[ 69], 50.00th=[ 72], 60.00th=[ 75], | 70.00th=[ 78], 80.00th=[ 81], 90.00th=[ 86], 95.00th=[ 90], | 99.00th=[ 99], 99.50th=[ 167], 99.90th=[ 211], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 144, max= 360, per=24.98%, avg=270.83, stdev=49.96, samples=36 iops : min= 36, max= 90, avg=67.69, stdev=12.47, samples=36 write: IOPS=71, BW=286KiB/s (293kB/s)(5264KiB/18414msec); 0 zone resets slat (usec): min=22, max=409, avg=99.56, stdev=49.27 clat (msec): min=33, max=289, avg=153.38, stdev=34.18 lat (msec): min=33, max=290, avg=153.48, stdev=34.18 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 101], 10.00th=[ 110], 20.00th=[ 125], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 180], 90.00th=[ 194], 95.00th=[ 207], | 99.00th=[ 232], 99.50th=[ 245], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 208, max= 352, per=25.41%, avg=286.83, stdev=36.08, samples=36 iops : min= 52, max= 88, avg=71.69, stdev= 9.02, samples=36 lat (msec) : 10=0.27%, 20=0.16%, 50=1.25%, 100=49.06%, 250=49.02% lat (msec) : 500=0.23% cpu : usr=0.24%, sys=1.66%, ctx=4855, 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=161422: Tue Aug 25 18:58:23 2026 read: IOPS=67, BW=269KiB/s (276kB/s)(4984KiB/18503msec) slat (usec): min=978, max=5370, avg=2264.37, stdev=701.64 clat (msec): min=3, max=113, avg=71.57, stdev=11.52 lat (msec): min=5, max=116, avg=73.83, stdev=11.57 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 58], 20.00th=[ 64], | 30.00th=[ 67], 40.00th=[ 69], 50.00th=[ 72], 60.00th=[ 75], | 70.00th=[ 78], 80.00th=[ 82], 90.00th=[ 86], 95.00th=[ 89], | 99.00th=[ 95], 99.50th=[ 101], 99.90th=[ 109], 99.95th=[ 114], | 99.99th=[ 114] bw ( KiB/s): min= 192, max= 400, per=24.94%, avg=270.33, stdev=53.81, samples=36 iops : min= 48, max= 100, avg=67.58, stdev=13.45, samples=36 write: IOPS=71, BW=284KiB/s (291kB/s)(5256KiB/18503msec); 0 zone resets slat (usec): min=23, max=1751, avg=104.35, stdev=72.14 clat (msec): min=50, max=259, avg=154.78, stdev=33.31 lat (msec): min=50, max=259, avg=154.88, stdev=33.31 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 100], 10.00th=[ 111], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 197], 95.00th=[ 207], | 99.00th=[ 228], 99.50th=[ 239], 99.90th=[ 247], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 200, max= 344, per=24.99%, avg=282.11, stdev=37.40, samples=36 iops : min= 50, max= 86, avg=70.53, stdev= 9.35, samples=36 lat (msec) : 4=0.04%, 10=0.04%, 20=0.27%, 50=0.66%, 100=50.00% lat (msec) : 250=48.95%, 500=0.04% cpu : usr=0.23%, sys=1.68%, ctx=4995, 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=161423: Tue Aug 25 18:58:23 2026 read: IOPS=68, BW=274KiB/s (280kB/s)(5060KiB/18481msec) slat (usec): min=979, max=5408, avg=2228.88, stdev=707.04 clat (msec): min=3, max=150, avg=72.25, stdev=12.05 lat (msec): min=5, max=152, avg=74.48, stdev=12.08 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 55], 10.00th=[ 58], 20.00th=[ 64], | 30.00th=[ 67], 40.00th=[ 70], 50.00th=[ 73], 60.00th=[ 75], | 70.00th=[ 79], 80.00th=[ 82], 90.00th=[ 87], 95.00th=[ 91], | 99.00th=[ 100], 99.50th=[ 107], 99.90th=[ 138], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 216, max= 416, per=25.39%, avg=275.22, stdev=42.28, samples=36 iops : min= 54, max= 104, avg=68.81, stdev=10.57, samples=36 write: IOPS=70, BW=280KiB/s (287kB/s)(5180KiB/18481msec); 0 zone resets slat (usec): min=33, max=1476, avg=101.91, stdev=64.35 clat (msec): min=69, max=257, avg=154.94, stdev=31.68 lat (msec): min=69, max=257, avg=155.04, stdev=31.68 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 127], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 182], 90.00th=[ 194], 95.00th=[ 205], | 99.00th=[ 226], 99.50th=[ 232], 99.90th=[ 245], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 224, max= 344, per=24.76%, avg=279.58, stdev=25.97, samples=36 iops : min= 56, max= 86, avg=69.89, stdev= 6.50, samples=36 lat (msec) : 4=0.04%, 10=0.04%, 20=0.12%, 50=0.86%, 100=50.20% lat (msec) : 250=48.71%, 500=0.04% cpu : usr=0.21%, sys=1.68%, ctx=5015, 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=1085KiB/s (1111kB/s), 269KiB/s-274KiB/s (276kB/s-280kB/s), io=19.6MiB (20.5MB), run=18414-18503msec WRITE: bw=1129KiB/s (1156kB/s), 280KiB/s-286KiB/s (287kB/s-293kB/s), io=20.4MiB (21.4MB), run=18414-18503msec 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=161429: Tue Aug 25 18:58:26 2026 read: IOPS=9, BW=377MiB/s (396MB/s)(40.0MiB/106msec) slat (nsec): min=10849k, max=10849k, avg=10849147.00, stdev= 0.00 clat (nsec): min=90416k, max=90416k, avg=90416151.00, stdev= 0.00 lat (nsec): min=101270k, max=101270k, avg=101269528.00, stdev= 0.00 clat percentiles (usec): | 1.00th=[90702], 5.00th=[90702], 10.00th=[90702], 20.00th=[90702], | 30.00th=[90702], 40.00th=[90702], 50.00th=[90702], 60.00th=[90702], | 70.00th=[90702], 80.00th=[90702], 90.00th=[90702], 95.00th=[90702], | 99.00th=[90702], 99.50th=[90702], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] lat (msec) : 100=100.00% cpu : usr=0.00%, sys=8.57%, ctx=41, majf=0, minf=10 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=377MiB/s (396MB/s), 377MiB/s-377MiB/s (396MB/s-396MB/s), io=40.0MiB (41.9MB), run=106-106msec 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