== sanity test 398c: run fio to test AIO ================= 04:05:25 (1788336325) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.279741 s, 150 MB/s osc.lustre-OST0000-osc-ffff8a72868de800.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=181328: Wed Sep 2 04:05:48 2026 write: IOPS=145, BW=580KiB/s (594kB/s)(10.0MiB/17645msec); 0 zone resets slat (usec): min=20, max=4546, avg=129.03, stdev=275.45 clat (msec): min=19, max=168, avg=109.62, stdev=20.40 lat (msec): min=20, max=168, avg=109.75, stdev=20.42 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 80], 10.00th=[ 86], 20.00th=[ 92], | 30.00th=[ 97], 40.00th=[ 102], 50.00th=[ 108], 60.00th=[ 114], | 70.00th=[ 122], 80.00th=[ 129], 90.00th=[ 138], 95.00th=[ 146], | 99.00th=[ 155], 99.50th=[ 159], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 169] bw ( KiB/s): min= 420, max= 768, per=25.01%, avg=580.53, stdev=87.53, samples=34 iops : min= 105, max= 192, avg=144.94, stdev=21.94, samples=34 lat (msec) : 20=0.04%, 50=0.08%, 100=35.16%, 250=64.73% cpu : usr=0.20%, sys=1.07%, ctx=1921, majf=0, minf=8 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=181329: Wed Sep 2 04:05:48 2026 write: IOPS=147, BW=588KiB/s (602kB/s)(10.0MiB/17407msec); 0 zone resets slat (usec): min=30, max=5479, avg=191.29, stdev=398.45 clat (msec): min=16, max=275, avg=108.49, stdev=23.39 lat (msec): min=20, max=275, avg=108.68, stdev=23.39 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 75], 10.00th=[ 83], 20.00th=[ 92], | 30.00th=[ 99], 40.00th=[ 104], 50.00th=[ 107], 60.00th=[ 112], | 70.00th=[ 118], 80.00th=[ 127], 90.00th=[ 140], 95.00th=[ 146], | 99.00th=[ 157], 99.50th=[ 174], 99.90th=[ 259], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 448, max= 752, per=25.43%, avg=590.18, stdev=81.14, samples=34 iops : min= 112, max= 188, avg=147.32, stdev=20.37, samples=34 lat (msec) : 20=0.08%, 50=1.37%, 100=32.19%, 250=66.25%, 500=0.12% cpu : usr=0.23%, sys=1.56%, ctx=2971, majf=0, minf=8 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=181330: Wed Sep 2 04:05:48 2026 write: IOPS=145, BW=581KiB/s (595kB/s)(10.0MiB/17618msec); 0 zone resets slat (usec): min=21, max=5587, avg=179.21, stdev=364.36 clat (msec): min=17, max=188, avg=109.21, stdev=20.60 lat (msec): min=17, max=188, avg=109.39, stdev=20.61 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 77], 10.00th=[ 86], 20.00th=[ 92], | 30.00th=[ 99], 40.00th=[ 103], 50.00th=[ 108], 60.00th=[ 113], | 70.00th=[ 121], 80.00th=[ 128], 90.00th=[ 138], 95.00th=[ 146], | 99.00th=[ 157], 99.50th=[ 165], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 188] bw ( KiB/s): min= 421, max= 768, per=25.11%, avg=582.74, stdev=87.46, samples=34 iops : min= 105, max= 192, avg=145.47, stdev=21.94, samples=34 lat (msec) : 20=0.04%, 50=0.16%, 100=33.48%, 250=66.33% cpu : usr=0.25%, sys=1.37%, ctx=2743, 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=181331: Wed Sep 2 04:05:48 2026 write: IOPS=145, BW=581KiB/s (595kB/s)(10.0MiB/17618msec); 0 zone resets slat (usec): min=19, max=6262, avg=200.04, stdev=400.13 clat (msec): min=13, max=213, avg=109.39, stdev=21.17 lat (msec): min=16, max=213, avg=109.59, stdev=21.17 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 78], 10.00th=[ 84], 20.00th=[ 92], | 30.00th=[ 97], 40.00th=[ 104], 50.00th=[ 108], 60.00th=[ 113], | 70.00th=[ 121], 80.00th=[ 129], 90.00th=[ 138], 95.00th=[ 146], | 99.00th=[ 159], 99.50th=[ 174], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 433, max= 764, per=25.18%, avg=584.44, stdev=83.81, samples=34 iops : min= 108, max= 191, avg=145.91, stdev=21.03, samples=34 lat (msec) : 20=0.04%, 50=0.20%, 100=34.57%, 250=65.20% cpu : usr=0.23%, sys=1.73%, ctx=3250, 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 Run status group 0 (all jobs): WRITE: bw=2321KiB/s (2377kB/s), 580KiB/s-588KiB/s (594kB/s-602kB/s), io=40.0MiB (41.9MB), run=17407-17645msec 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=181343: Wed Sep 2 04:06:11 2026 read: IOPS=71, BW=284KiB/s (291kB/s)(5048KiB/17758msec) slat (usec): min=2073, max=25035, avg=7418.35, stdev=3273.76 clat (msec): min=16, max=204, avg=103.80, stdev=21.53 lat (msec): min=22, max=212, avg=111.23, stdev=22.37 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 73], 10.00th=[ 79], 20.00th=[ 87], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 102], 60.00th=[ 107], | 70.00th=[ 113], 80.00th=[ 121], 90.00th=[ 131], 95.00th=[ 144], | 99.00th=[ 165], 99.50th=[ 174], 99.90th=[ 190], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 176, max= 391, per=25.11%, avg=283.46, stdev=50.78, samples=35 iops : min= 44, max= 97, avg=70.46, stdev=12.62, samples=35 write: IOPS=73, BW=292KiB/s (299kB/s)(5192KiB/17758msec); 0 zone resets slat (usec): min=31, max=7308, avg=205.51, stdev=436.98 clat (msec): min=15, max=186, avg=108.98, stdev=19.63 lat (msec): min=15, max=186, avg=109.18, stdev=19.63 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 79], 10.00th=[ 86], 20.00th=[ 92], | 30.00th=[ 99], 40.00th=[ 104], 50.00th=[ 108], 60.00th=[ 113], | 70.00th=[ 118], 80.00th=[ 125], 90.00th=[ 136], 95.00th=[ 142], | 99.00th=[ 161], 99.50th=[ 167], 99.90th=[ 184], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 199, max= 375, per=24.83%, avg=292.06, stdev=47.48, samples=35 iops : min= 49, max= 93, avg=72.63, stdev=11.87, samples=35 lat (msec) : 20=0.08%, 50=0.04%, 100=39.92%, 250=59.96% cpu : usr=0.31%, sys=2.44%, ctx=4808, 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=181344: Wed Sep 2 04:06:11 2026 read: IOPS=70, BW=280KiB/s (287kB/s)(4976KiB/17764msec) slat (usec): min=2019, max=26452, avg=7265.49, stdev=3200.98 clat (msec): min=7, max=191, avg=103.80, stdev=21.64 lat (msec): min=16, max=199, avg=111.07, stdev=22.30 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 72], 10.00th=[ 78], 20.00th=[ 85], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 103], 60.00th=[ 109], | 70.00th=[ 115], 80.00th=[ 122], 90.00th=[ 133], 95.00th=[ 142], | 99.00th=[ 161], 99.50th=[ 163], 99.90th=[ 169], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 160, max= 398, per=24.70%, avg=278.91, stdev=51.97, samples=35 iops : min= 40, max= 99, avg=69.31, stdev=12.89, samples=35 write: IOPS=74, BW=296KiB/s (303kB/s)(5264KiB/17764msec); 0 zone resets slat (usec): min=26, max=4473, avg=196.50, stdev=382.81 clat (msec): min=55, max=185, avg=109.45, stdev=20.20 lat (msec): min=56, max=185, avg=109.64, stdev=20.19 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 80], 10.00th=[ 85], 20.00th=[ 93], | 30.00th=[ 99], 40.00th=[ 105], 50.00th=[ 109], 60.00th=[ 113], | 70.00th=[ 120], 80.00th=[ 126], 90.00th=[ 136], 95.00th=[ 144], | 99.00th=[ 167], 99.50th=[ 174], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 223, max= 447, per=25.20%, avg=296.40, stdev=42.63, samples=35 iops : min= 55, max= 111, avg=73.71, stdev=10.66, samples=35 lat (msec) : 10=0.04%, 100=39.41%, 250=60.55% cpu : usr=0.35%, sys=2.34%, ctx=4782, 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=181345: Wed Sep 2 04:06:11 2026 read: IOPS=70, BW=281KiB/s (288kB/s)(4984KiB/17735msec) slat (usec): min=2047, max=22361, avg=7330.70, stdev=3137.26 clat (msec): min=27, max=186, avg=104.23, stdev=21.19 lat (msec): min=31, max=194, avg=111.57, stdev=21.95 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 72], 10.00th=[ 78], 20.00th=[ 87], | 30.00th=[ 94], 40.00th=[ 99], 50.00th=[ 104], 60.00th=[ 109], | 70.00th=[ 114], 80.00th=[ 122], 90.00th=[ 133], 95.00th=[ 142], | 99.00th=[ 159], 99.50th=[ 167], 99.90th=[ 186], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 200, max= 400, per=24.92%, avg=281.34, stdev=50.94, samples=35 iops : min= 50, max= 100, avg=69.94, stdev=12.65, samples=35 write: IOPS=74, BW=296KiB/s (303kB/s)(5256KiB/17735msec); 0 zone resets slat (usec): min=32, max=7389, avg=192.92, stdev=391.65 clat (msec): min=20, max=186, avg=108.69, stdev=19.28 lat (msec): min=21, max=186, avg=108.88, stdev=19.27 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 80], 10.00th=[ 85], 20.00th=[ 93], | 30.00th=[ 99], 40.00th=[ 103], 50.00th=[ 108], 60.00th=[ 113], | 70.00th=[ 118], 80.00th=[ 126], 90.00th=[ 136], 95.00th=[ 142], | 99.00th=[ 155], 99.50th=[ 165], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 207, max= 375, per=25.09%, avg=295.06, stdev=43.33, samples=35 iops : min= 51, max= 93, avg=73.37, stdev=10.78, samples=35 lat (msec) : 50=0.20%, 100=39.34%, 250=60.47% cpu : usr=0.35%, sys=2.45%, ctx=4740, 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=181346: Wed Sep 2 04:06:11 2026 read: IOPS=71, BW=287KiB/s (294kB/s)(5060KiB/17619msec) slat (usec): min=56, max=29002, avg=7222.05, stdev=3163.28 clat (msec): min=5, max=187, avg=104.67, stdev=22.79 lat (msec): min=5, max=196, avg=111.90, stdev=23.49 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 72], 10.00th=[ 79], 20.00th=[ 86], | 30.00th=[ 92], 40.00th=[ 97], 50.00th=[ 104], 60.00th=[ 109], | 70.00th=[ 115], 80.00th=[ 123], 90.00th=[ 134], 95.00th=[ 146], | 99.00th=[ 165], 99.50th=[ 169], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 215, max= 376, per=25.35%, avg=286.24, stdev=40.73, samples=34 iops : min= 53, max= 94, avg=71.18, stdev=10.17, samples=34 write: IOPS=73, BW=294KiB/s (301kB/s)(5180KiB/17619msec); 0 zone resets slat (usec): min=36, max=4860, avg=198.82, stdev=386.90 clat (msec): min=28, max=184, avg=107.84, stdev=20.50 lat (msec): min=29, max=184, avg=108.04, stdev=20.50 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 78], 10.00th=[ 84], 20.00th=[ 91], | 30.00th=[ 97], 40.00th=[ 102], 50.00th=[ 107], 60.00th=[ 112], | 70.00th=[ 117], 80.00th=[ 125], 90.00th=[ 134], 95.00th=[ 144], | 99.00th=[ 163], 99.50th=[ 171], 99.90th=[ 182], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 183, max= 439, per=24.84%, avg=292.15, stdev=51.24, samples=34 iops : min= 45, max= 109, avg=72.65, stdev=12.76, samples=34 lat (msec) : 10=0.04%, 20=0.16%, 50=0.20%, 100=40.20%, 250=59.41% cpu : usr=0.37%, sys=2.38%, ctx=4835, 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=1130KiB/s (1157kB/s), 280KiB/s-287KiB/s (287kB/s-294kB/s), io=19.6MiB (20.5MB), run=17619-17764msec WRITE: bw=1176KiB/s (1204kB/s), 292KiB/s-296KiB/s (299kB/s-303kB/s), io=20.4MiB (21.4MB), run=17619-17764msec 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=181352: Wed Sep 2 04:06:16 2026 read: IOPS=3, BW=145MiB/s (152MB/s)(40.0MiB/276msec) slat (nsec): min=18528k, max=18528k, avg=18527685.00, stdev= 0.00 clat (nsec): min=242279k, max=242279k, avg=242278614.00, stdev= 0.00 lat (nsec): min=260810k, max=260810k, avg=260810071.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 243], | 30.00th=[ 243], 40.00th=[ 243], 50.00th=[ 243], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 243], 90.00th=[ 243], 95.00th=[ 243], | 99.00th=[ 243], 99.50th=[ 243], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=2.91%, ctx=3, 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=145MiB/s (152MB/s), 145MiB/s-145MiB/s (152MB/s-152MB/s), io=40.0MiB (41.9MB), run=276-276msec 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