== sanity test 398c: run fio to test AIO ================= 10:04:12 (1788876252) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.352563 s, 119 MB/s osc.lustre-OST0000-osc-ffff8f614a068000.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=179512: Tue Sep 8 10:04:35 2026 write: IOPS=155, BW=622KiB/s (636kB/s)(10.0MiB/16475msec); 0 zone resets slat (usec): min=22, max=20815, avg=169.63, stdev=684.11 clat (msec): min=15, max=204, avg=102.11, stdev=25.17 lat (msec): min=15, max=204, avg=102.28, stdev=25.15 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 67], 10.00th=[ 72], 20.00th=[ 81], | 30.00th=[ 89], 40.00th=[ 96], 50.00th=[ 102], 60.00th=[ 107], | 70.00th=[ 112], 80.00th=[ 118], 90.00th=[ 134], 95.00th=[ 150], | 99.00th=[ 180], 99.50th=[ 197], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 423, max= 792, per=25.03%, avg=622.22, stdev=90.91, samples=32 iops : min= 105, max= 198, avg=155.28, stdev=22.77, samples=32 lat (msec) : 20=0.12%, 50=0.31%, 100=46.76%, 250=52.81% cpu : usr=0.24%, sys=1.46%, ctx=3149, 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=179513: Tue Sep 8 10:04:35 2026 write: IOPS=155, BW=623KiB/s (638kB/s)(10.0MiB/16426msec); 0 zone resets slat (usec): min=22, max=9192, avg=138.19, stdev=397.24 clat (msec): min=16, max=205, avg=102.36, stdev=25.79 lat (msec): min=17, max=205, avg=102.49, stdev=25.79 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 65], 10.00th=[ 72], 20.00th=[ 81], | 30.00th=[ 89], 40.00th=[ 95], 50.00th=[ 102], 60.00th=[ 107], | 70.00th=[ 112], 80.00th=[ 120], 90.00th=[ 134], 95.00th=[ 155], | 99.00th=[ 188], 99.50th=[ 199], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 439, max= 800, per=25.10%, avg=623.94, stdev=95.06, samples=32 iops : min= 109, max= 200, avg=155.69, stdev=23.81, samples=32 lat (msec) : 20=0.08%, 50=0.12%, 100=48.09%, 250=51.72% cpu : usr=0.25%, sys=1.30%, ctx=2961, 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=179514: Tue Sep 8 10:04:35 2026 write: IOPS=155, BW=623KiB/s (638kB/s)(10.0MiB/16442msec); 0 zone resets slat (usec): min=21, max=14863, avg=146.83, stdev=536.34 clat (msec): min=18, max=199, avg=102.33, stdev=24.97 lat (msec): min=18, max=199, avg=102.47, stdev=24.97 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 65], 10.00th=[ 72], 20.00th=[ 82], | 30.00th=[ 90], 40.00th=[ 96], 50.00th=[ 102], 60.00th=[ 107], | 70.00th=[ 112], 80.00th=[ 120], 90.00th=[ 133], 95.00th=[ 146], | 99.00th=[ 192], 99.50th=[ 197], 99.90th=[ 201], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 399, max= 824, per=25.05%, avg=622.75, stdev=93.15, samples=32 iops : min= 99, max= 206, avg=155.38, stdev=23.37, samples=32 lat (msec) : 20=0.04%, 50=0.16%, 100=47.42%, 250=52.38% cpu : usr=0.25%, sys=1.25%, ctx=2824, 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=179515: Tue Sep 8 10:04:35 2026 write: IOPS=155, BW=622KiB/s (637kB/s)(10.0MiB/16453msec); 0 zone resets slat (usec): min=21, max=41719, avg=180.77, stdev=1010.18 clat (msec): min=12, max=204, avg=102.13, stdev=25.47 lat (msec): min=12, max=205, avg=102.32, stdev=25.44 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 82], | 30.00th=[ 89], 40.00th=[ 95], 50.00th=[ 101], 60.00th=[ 107], | 70.00th=[ 112], 80.00th=[ 118], 90.00th=[ 133], 95.00th=[ 148], | 99.00th=[ 188], 99.50th=[ 194], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 448, max= 816, per=25.08%, avg=623.56, stdev=90.20, samples=32 iops : min= 112, max= 204, avg=155.59, stdev=22.56, samples=32 lat (msec) : 20=0.04%, 50=0.31%, 100=48.28%, 250=51.37% cpu : usr=0.30%, sys=1.56%, ctx=3091, 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=2486KiB/s (2546kB/s), 622KiB/s-623KiB/s (636kB/s-638kB/s), io=40.0MiB (41.9MB), run=16426-16475msec 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=179527: Tue Sep 8 10:05:00 2026 read: IOPS=67, BW=270KiB/s (276kB/s)(5048KiB/18702msec) slat (usec): min=20, max=35138, avg=7920.40, stdev=4308.12 clat (msec): min=14, max=247, avg=110.36, stdev=31.22 lat (msec): min=23, max=269, avg=118.29, stdev=32.57 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 67], 10.00th=[ 74], 20.00th=[ 85], | 30.00th=[ 90], 40.00th=[ 100], 50.00th=[ 109], 60.00th=[ 116], | 70.00th=[ 126], 80.00th=[ 136], 90.00th=[ 150], 95.00th=[ 169], | 99.00th=[ 199], 99.50th=[ 209], 99.90th=[ 232], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 168, max= 408, per=25.30%, avg=267.70, stdev=64.62, samples=37 iops : min= 42, max= 102, avg=66.57, stdev=16.20, samples=37 write: IOPS=69, BW=278KiB/s (284kB/s)(5192KiB/18702msec); 0 zone resets slat (usec): min=21, max=9775, avg=205.97, stdev=690.49 clat (msec): min=26, max=210, avg=114.96, stdev=29.27 lat (msec): min=26, max=210, avg=115.17, stdev=29.31 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 73], 10.00th=[ 80], 20.00th=[ 88], | 30.00th=[ 97], 40.00th=[ 105], 50.00th=[ 113], 60.00th=[ 123], | 70.00th=[ 131], 80.00th=[ 140], 90.00th=[ 155], 95.00th=[ 167], | 99.00th=[ 186], 99.50th=[ 197], 99.90th=[ 205], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 175, max= 439, per=25.06%, avg=275.92, stdev=56.17, samples=37 iops : min= 43, max= 109, avg=68.59, stdev=14.05, samples=37 lat (msec) : 20=0.04%, 50=0.55%, 100=36.72%, 250=62.70% cpu : usr=0.33%, sys=2.19%, ctx=4953, 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=179528: Tue Sep 8 10:05:00 2026 read: IOPS=65, BW=264KiB/s (270kB/s)(4976KiB/18867msec) slat (usec): min=1533, max=32031, avg=8017.63, stdev=4348.91 clat (msec): min=49, max=221, avg=112.11, stdev=30.47 lat (msec): min=53, max=236, avg=120.14, stdev=31.59 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 68], 10.00th=[ 75], 20.00th=[ 85], | 30.00th=[ 92], 40.00th=[ 101], 50.00th=[ 109], 60.00th=[ 120], | 70.00th=[ 129], 80.00th=[ 140], 90.00th=[ 155], 95.00th=[ 165], | 99.00th=[ 192], 99.50th=[ 207], 99.90th=[ 215], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 152, max= 391, per=24.85%, avg=262.86, stdev=59.65, samples=37 iops : min= 38, max= 97, avg=65.32, stdev=14.99, samples=37 write: IOPS=69, BW=279KiB/s (286kB/s)(5264KiB/18867msec); 0 zone resets slat (usec): min=25, max=11973, avg=163.06, stdev=587.10 clat (msec): min=52, max=212, avg=114.47, stdev=27.80 lat (msec): min=52, max=212, avg=114.63, stdev=27.85 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 75], 10.00th=[ 81], 20.00th=[ 88], | 30.00th=[ 96], 40.00th=[ 105], 50.00th=[ 113], 60.00th=[ 121], | 70.00th=[ 129], 80.00th=[ 138], 90.00th=[ 150], 95.00th=[ 165], | 99.00th=[ 188], 99.50th=[ 192], 99.90th=[ 209], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 168, max= 416, per=25.35%, avg=279.08, stdev=62.92, samples=37 iops : min= 42, max= 104, avg=69.41, stdev=15.73, samples=37 lat (msec) : 50=0.04%, 100=37.34%, 250=62.62% cpu : usr=0.19%, sys=2.25%, ctx=4823, 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=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=179529: Tue Sep 8 10:05:00 2026 read: IOPS=65, BW=263KiB/s (269kB/s)(4984KiB/18959msec) slat (usec): min=1537, max=59796, avg=8122.37, stdev=4730.48 clat (msec): min=8, max=238, avg=111.38, stdev=29.30 lat (msec): min=13, max=247, avg=119.51, stdev=30.55 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 69], 10.00th=[ 77], 20.00th=[ 86], | 30.00th=[ 94], 40.00th=[ 103], 50.00th=[ 110], 60.00th=[ 117], | 70.00th=[ 126], 80.00th=[ 134], 90.00th=[ 150], 95.00th=[ 163], | 99.00th=[ 188], 99.50th=[ 203], 99.90th=[ 222], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 143, max= 407, per=24.73%, avg=261.62, stdev=65.44, samples=37 iops : min= 35, max= 101, avg=65.03, stdev=16.42, samples=37 write: IOPS=69, BW=277KiB/s (284kB/s)(5256KiB/18959msec); 0 zone resets slat (usec): min=26, max=5035, avg=159.19, stdev=387.00 clat (msec): min=28, max=229, avg=115.85, stdev=30.20 lat (msec): min=28, max=229, avg=116.01, stdev=30.21 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 73], 10.00th=[ 81], 20.00th=[ 88], | 30.00th=[ 97], 40.00th=[ 106], 50.00th=[ 114], 60.00th=[ 123], | 70.00th=[ 131], 80.00th=[ 142], 90.00th=[ 157], 95.00th=[ 169], | 99.00th=[ 194], 99.50th=[ 199], 99.90th=[ 226], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 183, max= 400, per=24.93%, avg=274.49, stdev=53.40, samples=37 iops : min= 45, max= 100, avg=68.24, stdev=13.41, samples=37 lat (msec) : 10=0.04%, 20=0.08%, 50=0.31%, 100=35.04%, 250=64.53% cpu : usr=0.28%, sys=2.38%, ctx=4452, 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=179530: Tue Sep 8 10:05:00 2026 read: IOPS=66, BW=267KiB/s (273kB/s)(5060KiB/18949msec) slat (usec): min=2018, max=35213, avg=8012.71, stdev=4301.12 clat (msec): min=17, max=228, avg=111.08, stdev=29.62 lat (msec): min=22, max=239, avg=119.10, stdev=30.73 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 69], 10.00th=[ 78], 20.00th=[ 85], | 30.00th=[ 92], 40.00th=[ 101], 50.00th=[ 109], 60.00th=[ 117], | 70.00th=[ 126], 80.00th=[ 136], 90.00th=[ 150], 95.00th=[ 165], | 99.00th=[ 186], 99.50th=[ 209], 99.90th=[ 224], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 168, max= 400, per=25.23%, avg=266.95, stdev=63.10, samples=37 iops : min= 42, max= 100, avg=66.38, stdev=15.83, samples=37 write: IOPS=68, BW=273KiB/s (280kB/s)(5180KiB/18949msec); 0 zone resets slat (usec): min=27, max=10033, avg=163.02, stdev=442.38 clat (msec): min=29, max=230, avg=115.97, stdev=29.08 lat (msec): min=29, max=230, avg=116.13, stdev=29.07 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 73], 10.00th=[ 80], 20.00th=[ 88], | 30.00th=[ 99], 40.00th=[ 106], 50.00th=[ 115], 60.00th=[ 123], | 70.00th=[ 132], 80.00th=[ 142], 90.00th=[ 155], 95.00th=[ 165], | 99.00th=[ 192], 99.50th=[ 201], 99.90th=[ 218], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 167, max= 431, per=24.70%, avg=271.95, stdev=57.73, samples=37 iops : min= 41, max= 107, avg=67.59, stdev=14.46, samples=37 lat (msec) : 20=0.04%, 50=0.16%, 100=36.05%, 250=63.75% cpu : usr=0.28%, sys=2.18%, ctx=4715, 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=1058KiB/s (1084kB/s), 263KiB/s-270KiB/s (269kB/s-276kB/s), io=19.6MiB (20.5MB), run=18702-18959msec WRITE: bw=1102KiB/s (1128kB/s), 273KiB/s-279KiB/s (280kB/s-286kB/s), io=20.4MiB (21.4MB), run=18702-18959msec 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=179537: Tue Sep 8 10:05:07 2026 read: IOPS=2, BW=90.7MiB/s (95.1MB/s)(40.0MiB/441msec) slat (nsec): min=45851k, max=45851k, avg=45851274.00, stdev= 0.00 clat (nsec): min=368388k, max=368388k, avg=368388409.00, stdev= 0.00 lat (nsec): min=414244k, max=414244k, avg=414243979.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] lat (msec) : 500=100.00% cpu : usr=0.23%, sys=2.50%, ctx=6, 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=90.7MiB/s (95.1MB/s), 90.7MiB/s-90.7MiB/s (95.1MB/s-95.1MB/s), io=40.0MiB (41.9MB), run=441-441msec 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