== sanity test 398c: run fio to test AIO ================= 08:13:57 (1789128837) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.66594 s, 63.0 MB/s osc.lustre-OST0000-osc-ffff897b91594800.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=179711: Fri Sep 11 08:14:42 2026 write: IOPS=80, BW=323KiB/s (331kB/s)(10.0MiB/31670msec); 0 zone resets slat (usec): min=29, max=22262, avg=254.61, stdev=1028.07 clat (msec): min=18, max=333, avg=196.14, stdev=51.67 lat (msec): min=19, max=334, avg=196.40, stdev=51.66 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 118], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 249], 90.00th=[ 266], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 111, max= 518, per=25.03%, avg=323.69, stdev=80.90, samples=62 iops : min= 27, max= 129, avg=80.60, stdev=20.22, samples=62 lat (msec) : 20=0.04%, 50=0.04%, 100=1.13%, 250=81.88%, 500=16.91% cpu : usr=0.18%, sys=0.88%, ctx=2221, 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=179712: Fri Sep 11 08:14:42 2026 write: IOPS=80, BW=324KiB/s (332kB/s)(10.0MiB/31622msec); 0 zone resets slat (usec): min=31, max=18056, avg=284.25, stdev=977.25 clat (msec): min=20, max=380, avg=195.72, stdev=52.20 lat (msec): min=24, max=380, avg=196.01, stdev=52.18 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 115], 10.00th=[ 128], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 180], 50.00th=[ 194], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 241], 90.00th=[ 264], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 106, max= 518, per=25.11%, avg=324.63, stdev=84.03, samples=62 iops : min= 26, max= 129, avg=80.82, stdev=21.01, samples=62 lat (msec) : 50=0.16%, 100=0.66%, 250=82.54%, 500=16.64% cpu : usr=0.20%, sys=1.06%, ctx=2762, 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=179713: Fri Sep 11 08:14:42 2026 write: IOPS=81, BW=326KiB/s (334kB/s)(10.0MiB/31425msec); 0 zone resets slat (usec): min=31, max=23761, avg=327.66, stdev=1198.94 clat (msec): min=26, max=359, avg=195.76, stdev=52.64 lat (msec): min=26, max=359, avg=196.09, stdev=52.64 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 118], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 165], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 207], | 70.00th=[ 226], 80.00th=[ 245], 90.00th=[ 268], 95.00th=[ 284], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 159, max= 590, per=25.19%, avg=325.66, stdev=81.62, samples=62 iops : min= 39, max= 147, avg=81.06, stdev=20.41, samples=62 lat (msec) : 50=0.16%, 100=1.21%, 250=81.29%, 500=17.34% cpu : usr=0.18%, sys=0.97%, ctx=3055, 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=179714: Fri Sep 11 08:14:42 2026 write: IOPS=80, BW=323KiB/s (331kB/s)(10.0MiB/31660msec); 0 zone resets slat (usec): min=23, max=21008, avg=250.19, stdev=1103.04 clat (msec): min=54, max=361, avg=195.78, stdev=52.63 lat (msec): min=54, max=361, avg=196.04, stdev=52.62 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 148], | 30.00th=[ 165], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 243], 90.00th=[ 271], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 363] bw ( KiB/s): min= 106, max= 534, per=25.01%, avg=323.34, stdev=84.70, samples=62 iops : min= 26, max= 133, avg=80.48, stdev=21.17, samples=62 lat (msec) : 100=1.88%, 250=82.50%, 500=15.62% cpu : usr=0.18%, sys=0.80%, ctx=2155, 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=1293KiB/s (1324kB/s), 323KiB/s-326KiB/s (331kB/s-334kB/s), io=40.0MiB (41.9MB), run=31425-31670msec 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=179729: Fri Sep 11 08:15:22 2026 read: IOPS=39, BW=160KiB/s (164kB/s)(5048KiB/31579msec) slat (usec): min=43, max=56220, avg=13912.46, stdev=7095.48 clat (msec): min=9, max=437, avg=186.16, stdev=42.44 lat (msec): min=10, max=443, avg=200.08, stdev=43.58 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 128], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 321], 99.90th=[ 435], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 79, max= 246, per=25.41%, avg=159.60, stdev=33.49, samples=62 iops : min= 19, max= 61, avg=39.45, stdev= 8.39, samples=62 write: IOPS=41, BW=164KiB/s (168kB/s)(5192KiB/31579msec); 0 zone resets slat (usec): min=30, max=13854, avg=290.37, stdev=891.04 clat (msec): min=73, max=371, avg=193.79, stdev=39.45 lat (msec): min=73, max=372, avg=194.08, stdev=39.39 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 245], 95.00th=[ 262], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 368], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 104, max= 247, per=25.12%, avg=164.29, stdev=29.97, samples=62 iops : min= 26, max= 61, avg=40.65, stdev= 7.52, samples=62 lat (msec) : 10=0.04%, 50=0.20%, 100=0.55%, 250=92.23%, 500=6.99% cpu : usr=0.29%, sys=1.80%, ctx=4492, 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=179730: Fri Sep 11 08:15:22 2026 read: IOPS=38, BW=156KiB/s (160kB/s)(4976KiB/31909msec) slat (usec): min=2791, max=48765, avg=13905.25, stdev=6822.32 clat (msec): min=19, max=389, avg=188.45, stdev=39.55 lat (msec): min=26, max=407, avg=202.36, stdev=40.60 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 372], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 71, max= 230, per=24.74%, avg=155.35, stdev=33.17, samples=63 iops : min= 17, max= 57, avg=38.41, stdev= 8.34, samples=63 write: IOPS=41, BW=165KiB/s (169kB/s)(5264KiB/31909msec); 0 zone resets slat (usec): min=32, max=8840, avg=281.43, stdev=684.98 clat (msec): min=74, max=379, avg=194.12, stdev=37.46 lat (msec): min=75, max=379, avg=194.40, stdev=37.45 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 138], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 109, max= 247, per=25.23%, avg=165.02, stdev=34.18, samples=63 iops : min= 27, max= 61, avg=40.81, stdev= 8.54, samples=63 lat (msec) : 20=0.04%, 100=0.20%, 250=92.70%, 500=7.07% cpu : usr=0.30%, sys=1.88%, ctx=4508, 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=179731: Fri Sep 11 08:15:22 2026 read: IOPS=39, BW=156KiB/s (160kB/s)(4984KiB/31923msec) slat (usec): min=3234, max=68935, avg=14009.01, stdev=7213.82 clat (msec): min=34, max=315, avg=186.43, stdev=38.16 lat (msec): min=56, max=328, avg=200.44, stdev=39.27 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 131], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 253], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 84, max= 222, per=24.84%, avg=156.02, stdev=34.21, samples=63 iops : min= 21, max= 55, avg=38.57, stdev= 8.51, samples=63 write: IOPS=41, BW=165KiB/s (169kB/s)(5256KiB/31923msec); 0 zone resets slat (usec): min=31, max=13565, avg=307.66, stdev=904.53 clat (msec): min=92, max=341, avg=195.54, stdev=38.95 lat (msec): min=93, max=341, avg=195.85, stdev=38.96 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 163], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 247], 95.00th=[ 266], | 99.00th=[ 292], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 87, max= 238, per=25.02%, avg=163.63, stdev=33.13, samples=63 iops : min= 21, max= 59, avg=40.48, stdev= 8.36, samples=63 lat (msec) : 50=0.04%, 100=0.04%, 250=92.34%, 500=7.58% cpu : usr=0.33%, sys=1.85%, ctx=4240, 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=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=179732: Fri Sep 11 08:15:22 2026 read: IOPS=39, BW=159KiB/s (162kB/s)(5060KiB/31900msec) slat (usec): min=2892, max=68721, avg=14125.84, stdev=7330.91 clat (msec): min=36, max=335, avg=187.17, stdev=39.05 lat (msec): min=47, max=342, avg=201.30, stdev=40.38 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 128], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 241], 95.00th=[ 255], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 79, max= 238, per=25.20%, avg=158.25, stdev=33.98, samples=63 iops : min= 19, max= 59, avg=39.11, stdev= 8.55, samples=63 write: IOPS=40, BW=162KiB/s (166kB/s)(5180KiB/31900msec); 0 zone resets slat (usec): min=32, max=11621, avg=290.04, stdev=767.67 clat (msec): min=72, max=367, avg=194.35, stdev=37.68 lat (msec): min=72, max=369, avg=194.65, stdev=37.70 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 140], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 86, max= 232, per=24.80%, avg=162.19, stdev=33.88, samples=63 iops : min= 21, max= 58, avg=40.11, stdev= 8.53, samples=63 lat (msec) : 50=0.04%, 100=0.12%, 250=93.09%, 500=6.76% cpu : usr=0.27%, sys=1.92%, ctx=4430, 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=629KiB/s (644kB/s), 156KiB/s-160KiB/s (160kB/s-164kB/s), io=19.6MiB (20.5MB), run=31579-31923msec WRITE: bw=654KiB/s (670kB/s), 162KiB/s-165KiB/s (166kB/s-169kB/s), io=20.4MiB (21.4MB), run=31579-31923msec 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=179741: Fri Sep 11 08:15:33 2026 read: IOPS=2, BW=90.3MiB/s (94.7MB/s)(40.0MiB/443msec) slat (nsec): min=34821k, max=34821k, avg=34821205.00, stdev= 0.00 clat (nsec): min=377429k, max=377429k, avg=377428801.00, stdev= 0.00 lat (nsec): min=412255k, max=412255k, avg=412254517.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.49%, ctx=5, 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=90.3MiB/s (94.7MB/s), 90.3MiB/s-90.3MiB/s (94.7MB/s-94.7MB/s), io=40.0MiB (41.9MB), run=443-443msec 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