== sanity test 398c: run fio to test AIO ================= 08:52:06 (1786193526) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.16982 s, 247 MB/s osc.lustre-OST0000-osc-ffff957fc8cf3800.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=147464: Sat Aug 8 08:52:48 2026 write: IOPS=67, BW=270KiB/s (276kB/s)(10.0MiB/37934msec); 0 zone resets slat (usec): min=40, max=1976, avg=232.04, stdev=124.54 clat (msec): min=59, max=422, avg=236.56, stdev=52.28 lat (msec): min=59, max=422, avg=236.79, stdev=52.28 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 157], 10.00th=[ 178], 20.00th=[ 199], | 30.00th=[ 213], 40.00th=[ 226], 50.00th=[ 236], 60.00th=[ 247], | 70.00th=[ 257], 80.00th=[ 275], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 380], 99.50th=[ 397], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 422] bw ( KiB/s): min= 168, max= 458, per=24.94%, avg=269.09, stdev=46.01, samples=75 iops : min= 42, max= 114, avg=67.23, stdev=11.48, samples=75 lat (msec) : 100=1.25%, 250=62.19%, 500=36.56% cpu : usr=0.15%, sys=1.25%, ctx=2829, 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=147465: Sat Aug 8 08:52:48 2026 write: IOPS=67, BW=270KiB/s (277kB/s)(10.0MiB/37912msec); 0 zone resets slat (usec): min=48, max=3281, avg=235.34, stdev=158.67 clat (msec): min=36, max=418, avg=236.57, stdev=53.09 lat (msec): min=36, max=418, avg=236.81, stdev=53.08 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 157], 10.00th=[ 178], 20.00th=[ 199], | 30.00th=[ 215], 40.00th=[ 226], 50.00th=[ 236], 60.00th=[ 247], | 70.00th=[ 259], 80.00th=[ 275], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 380], 99.50th=[ 384], 99.90th=[ 414], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 144, max= 529, per=24.96%, avg=269.29, stdev=52.73, samples=75 iops : min= 36, max= 132, avg=67.28, stdev=13.19, samples=75 lat (msec) : 50=0.08%, 100=1.33%, 250=61.76%, 500=36.84% cpu : usr=0.15%, sys=1.26%, ctx=2887, 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=147466: Sat Aug 8 08:52:48 2026 write: IOPS=67, BW=270KiB/s (277kB/s)(10.0MiB/37913msec); 0 zone resets slat (usec): min=42, max=2328, avg=233.85, stdev=164.63 clat (msec): min=37, max=423, avg=236.43, stdev=52.92 lat (msec): min=37, max=423, avg=236.66, stdev=52.92 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 157], 10.00th=[ 178], 20.00th=[ 199], | 30.00th=[ 213], 40.00th=[ 224], 50.00th=[ 234], 60.00th=[ 245], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 305], 95.00th=[ 330], | 99.00th=[ 384], 99.50th=[ 393], 99.90th=[ 418], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 152, max= 515, per=24.96%, avg=269.32, stdev=53.58, samples=75 iops : min= 38, max= 128, avg=67.28, stdev=13.36, samples=75 lat (msec) : 50=0.04%, 100=1.21%, 250=63.52%, 500=35.23% cpu : usr=0.14%, sys=1.28%, ctx=2762, 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=147467: Sat Aug 8 08:52:48 2026 write: IOPS=67, BW=270KiB/s (276kB/s)(10.0MiB/37925msec); 0 zone resets slat (usec): min=43, max=2154, avg=234.52, stdev=127.73 clat (msec): min=54, max=431, avg=236.44, stdev=52.13 lat (msec): min=54, max=431, avg=236.68, stdev=52.14 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 161], 10.00th=[ 178], 20.00th=[ 199], | 30.00th=[ 213], 40.00th=[ 224], 50.00th=[ 234], 60.00th=[ 247], | 70.00th=[ 257], 80.00th=[ 275], 90.00th=[ 300], 95.00th=[ 326], | 99.00th=[ 380], 99.50th=[ 384], 99.90th=[ 414], 99.95th=[ 418], | 99.99th=[ 430] bw ( KiB/s): min= 144, max= 451, per=24.93%, avg=269.00, stdev=46.64, samples=75 iops : min= 36, max= 112, avg=67.20, stdev=11.63, samples=75 lat (msec) : 100=1.25%, 250=62.66%, 500=36.09% cpu : usr=0.13%, sys=1.30%, ctx=2870, 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=1080KiB/s (1106kB/s), 270KiB/s-270KiB/s (276kB/s-277kB/s), io=40.0MiB (41.9MB), run=37912-37934msec 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=147482: Sat Aug 8 08:53:14 2026 read: IOPS=56, BW=227KiB/s (232kB/s)(5048KiB/22259msec) slat (usec): min=37, max=10207, avg=2933.93, stdev=1176.32 clat (msec): min=3, max=239, avg=89.64, stdev=20.32 lat (msec): min=6, max=241, avg=92.58, stdev=20.51 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 62], 10.00th=[ 70], 20.00th=[ 78], | 30.00th=[ 82], 40.00th=[ 86], 50.00th=[ 90], 60.00th=[ 94], | 70.00th=[ 97], 80.00th=[ 104], 90.00th=[ 113], 95.00th=[ 121], | 99.00th=[ 140], 99.50th=[ 150], 99.90th=[ 199], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 144, max= 328, per=25.31%, avg=226.77, stdev=43.15, samples=44 iops : min= 36, max= 82, avg=56.66, stdev=10.85, samples=44 write: IOPS=58, BW=233KiB/s (239kB/s)(5192KiB/22259msec); 0 zone resets slat (usec): min=47, max=2431, avg=213.07, stdev=131.66 clat (msec): min=29, max=313, avg=183.90, stdev=42.27 lat (msec): min=29, max=313, avg=184.12, stdev=42.28 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 121], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 160, max= 296, per=24.96%, avg=232.84, stdev=33.08, samples=44 iops : min= 40, max= 74, avg=58.16, stdev= 8.25, samples=44 lat (msec) : 4=0.04%, 10=0.16%, 20=0.51%, 50=0.74%, 100=36.52% lat (msec) : 250=58.67%, 500=3.36% cpu : usr=0.27%, sys=2.33%, ctx=4784, 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=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=147483: Sat Aug 8 08:53:14 2026 read: IOPS=55, BW=222KiB/s (228kB/s)(4976KiB/22379msec) slat (usec): min=952, max=10651, avg=2926.84, stdev=1082.98 clat (msec): min=2, max=147, avg=89.30, stdev=19.68 lat (msec): min=5, max=149, avg=92.23, stdev=19.81 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 75], | 30.00th=[ 82], 40.00th=[ 87], 50.00th=[ 90], 60.00th=[ 94], | 70.00th=[ 99], 80.00th=[ 104], 90.00th=[ 114], 95.00th=[ 121], | 99.00th=[ 136], 99.50th=[ 140], 99.90th=[ 146], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 136, max= 336, per=24.62%, avg=220.57, stdev=46.58, samples=44 iops : min= 34, max= 84, avg=55.09, stdev=11.64, samples=44 write: IOPS=58, BW=235KiB/s (241kB/s)(5264KiB/22379msec); 0 zone resets slat (usec): min=57, max=5520, avg=211.54, stdev=181.44 clat (msec): min=50, max=311, avg=184.23, stdev=40.83 lat (msec): min=50, max=312, avg=184.44, stdev=40.83 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 292], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 176, max= 296, per=25.13%, avg=234.50, stdev=28.74, samples=44 iops : min= 44, max= 74, avg=58.59, stdev= 7.22, samples=44 lat (msec) : 4=0.04%, 10=0.23%, 20=0.23%, 50=0.66%, 100=35.82% lat (msec) : 250=59.61%, 500=3.40% cpu : usr=0.25%, sys=2.33%, ctx=4876, 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=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=147484: Sat Aug 8 08:53:14 2026 read: IOPS=55, BW=223KiB/s (228kB/s)(4984KiB/22338msec) slat (usec): min=1167, max=9873, avg=2947.04, stdev=1128.02 clat (msec): min=3, max=146, avg=89.62, stdev=19.24 lat (msec): min=6, max=150, avg=92.57, stdev=19.39 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 63], 10.00th=[ 69], 20.00th=[ 78], | 30.00th=[ 82], 40.00th=[ 86], 50.00th=[ 89], 60.00th=[ 93], | 70.00th=[ 99], 80.00th=[ 104], 90.00th=[ 114], 95.00th=[ 122], | 99.00th=[ 140], 99.50th=[ 142], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 127, max= 352, per=24.94%, avg=223.48, stdev=53.19, samples=44 iops : min= 31, max= 88, avg=55.82, stdev=13.35, samples=44 write: IOPS=58, BW=235KiB/s (241kB/s)(5256KiB/22338msec); 0 zone resets slat (usec): min=56, max=1147, avg=213.37, stdev=111.87 clat (msec): min=55, max=302, avg=183.53, stdev=40.50 lat (msec): min=56, max=302, avg=183.75, stdev=40.51 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 255], | 99.00th=[ 288], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 160, max= 320, per=25.08%, avg=233.95, stdev=33.91, samples=44 iops : min= 40, max= 80, avg=58.45, stdev= 8.45, samples=44 lat (msec) : 4=0.04%, 10=0.08%, 20=0.39%, 50=0.66%, 100=35.51% lat (msec) : 250=60.04%, 500=3.28% cpu : usr=0.30%, sys=2.34%, ctx=4836, majf=1, 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=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=147485: Sat Aug 8 08:53:14 2026 read: IOPS=56, BW=226KiB/s (232kB/s)(5060KiB/22363msec) slat (usec): min=1037, max=9922, avg=2961.59, stdev=1102.31 clat (msec): min=3, max=169, avg=89.82, stdev=18.64 lat (msec): min=6, max=172, avg=92.78, stdev=18.80 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 62], 10.00th=[ 69], 20.00th=[ 77], | 30.00th=[ 82], 40.00th=[ 86], 50.00th=[ 90], 60.00th=[ 94], | 70.00th=[ 99], 80.00th=[ 104], 90.00th=[ 112], 95.00th=[ 121], | 99.00th=[ 138], 99.50th=[ 142], 99.90th=[ 157], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 104, max= 344, per=25.30%, avg=226.68, stdev=50.65, samples=44 iops : min= 26, max= 86, avg=56.64, stdev=12.69, samples=44 write: IOPS=57, BW=232KiB/s (237kB/s)(5180KiB/22363msec); 0 zone resets slat (usec): min=41, max=1383, avg=207.49, stdev=104.36 clat (msec): min=77, max=311, avg=184.87, stdev=41.21 lat (msec): min=77, max=312, avg=185.08, stdev=41.21 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 255], | 99.00th=[ 296], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 160, max= 296, per=24.71%, avg=230.50, stdev=30.91, samples=44 iops : min= 40, max= 74, avg=57.59, stdev= 7.72, samples=44 lat (msec) : 4=0.04%, 10=0.12%, 20=0.16%, 50=0.43%, 100=36.37% lat (msec) : 250=59.38%, 500=3.52% cpu : usr=0.27%, sys=2.38%, ctx=4801, 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=897KiB/s (918kB/s), 222KiB/s-227KiB/s (228kB/s-232kB/s), io=19.6MiB (20.5MB), run=22259-22379msec WRITE: bw=934KiB/s (956kB/s), 232KiB/s-235KiB/s (237kB/s-241kB/s), io=20.4MiB (21.4MB), run=22259-22379msec 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=147492: Sat Aug 8 08:53:18 2026 read: IOPS=6, BW=278MiB/s (291MB/s)(40.0MiB/144msec) slat (nsec): min=19692k, max=19692k, avg=19691969.00, stdev= 0.00 clat (nsec): min=113845k, max=113845k, avg=113845483.00, stdev= 0.00 lat (nsec): min=133542k, max=133542k, avg=133542137.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 114], 60.00th=[ 114], | 70.00th=[ 114], 80.00th=[ 114], 90.00th=[ 114], 95.00th=[ 114], | 99.00th=[ 114], 99.50th=[ 114], 99.90th=[ 114], 99.95th=[ 114], | 99.99th=[ 114] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.29%, ctx=43, 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=278MiB/s (291MB/s), 278MiB/s-278MiB/s (291MB/s-291MB/s), io=40.0MiB (41.9MB), run=144-144msec 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