== sanity test 398c: run fio to test AIO ================= 01:29:29 (1780810169) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.130613 s, 321 MB/s osc.lustre-OST0000-osc-ffffa016c50ad800.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=183851: Sun Jun 7 01:30:02 2026 write: IOPS=86, BW=346KiB/s (354kB/s)(10.0MiB/29593msec); 0 zone resets slat (usec): min=40, max=766, avg=218.69, stdev=98.77 clat (msec): min=40, max=311, avg=184.56, stdev=33.22 lat (msec): min=40, max=312, avg=184.78, stdev=33.23 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 129], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 194], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 222], 95.00th=[ 234], | 99.00th=[ 259], 99.50th=[ 264], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 313] bw ( KiB/s): min= 272, max= 614, per=24.87%, avg=344.24, stdev=49.40, samples=58 iops : min= 68, max= 153, avg=86.05, stdev=12.30, samples=58 lat (msec) : 50=0.62%, 100=1.29%, 250=96.29%, 500=1.80% cpu : usr=0.17%, sys=1.52%, ctx=2916, 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=183852: Sun Jun 7 01:30:02 2026 write: IOPS=86, BW=346KiB/s (355kB/s)(10.0MiB/29571msec); 0 zone resets slat (usec): min=40, max=675, avg=213.46, stdev=98.01 clat (msec): min=30, max=328, avg=184.50, stdev=34.19 lat (msec): min=31, max=328, avg=184.71, stdev=34.21 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 127], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 203], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 236], | 99.00th=[ 255], 99.50th=[ 264], 99.90th=[ 279], 99.95th=[ 317], | 99.99th=[ 330] bw ( KiB/s): min= 256, max= 614, per=24.87%, avg=344.24, stdev=50.16, samples=58 iops : min= 64, max= 153, avg=86.05, stdev=12.49, samples=58 lat (msec) : 50=0.62%, 100=0.82%, 250=96.76%, 500=1.80% cpu : usr=0.18%, sys=1.49%, ctx=2815, 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=183853: Sun Jun 7 01:30:02 2026 write: IOPS=86, BW=346KiB/s (354kB/s)(10.0MiB/29592msec); 0 zone resets slat (usec): min=41, max=698, avg=225.91, stdev=96.86 clat (msec): min=30, max=282, avg=184.49, stdev=32.52 lat (msec): min=31, max=283, avg=184.72, stdev=32.52 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 129], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 224], 95.00th=[ 234], | 99.00th=[ 259], 99.50th=[ 262], 99.90th=[ 275], 99.95th=[ 279], | 99.99th=[ 284] bw ( KiB/s): min= 264, max= 544, per=24.85%, avg=343.86, stdev=43.00, samples=58 iops : min= 66, max= 136, avg=85.97, stdev=10.75, samples=58 lat (msec) : 50=0.04%, 100=1.41%, 250=97.07%, 500=1.48% cpu : usr=0.16%, sys=1.61%, ctx=2890, 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=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=183854: Sun Jun 7 01:30:02 2026 write: IOPS=86, BW=346KiB/s (354kB/s)(10.0MiB/29592msec); 0 zone resets slat (usec): min=48, max=1374, avg=220.72, stdev=96.91 clat (msec): min=18, max=312, avg=184.52, stdev=33.23 lat (msec): min=19, max=312, avg=184.74, stdev=33.23 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 130], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 194], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 224], 95.00th=[ 234], | 99.00th=[ 257], 99.50th=[ 264], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 313] bw ( KiB/s): min= 256, max= 608, per=24.87%, avg=344.14, stdev=48.64, samples=58 iops : min= 64, max= 152, avg=86.03, stdev=12.16, samples=58 lat (msec) : 20=0.08%, 50=0.16%, 100=1.76%, 250=96.29%, 500=1.72% cpu : usr=0.13%, sys=1.60%, ctx=2971, 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=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=1384KiB/s (1417kB/s), 346KiB/s-346KiB/s (354kB/s-355kB/s), io=40.0MiB (41.9MB), run=29571-29593msec 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=183867: Sun Jun 7 01:30:25 2026 read: IOPS=63, BW=253KiB/s (259kB/s)(5048KiB/19924msec) slat (usec): min=44, max=7137, avg=2453.48, stdev=783.55 clat (msec): min=4, max=227, avg=78.37, stdev=16.33 lat (msec): min=6, max=231, avg=80.82, stdev=16.44 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 59], 10.00th=[ 63], 20.00th=[ 69], | 30.00th=[ 73], 40.00th=[ 78], 50.00th=[ 80], 60.00th=[ 82], | 70.00th=[ 85], 80.00th=[ 88], 90.00th=[ 95], 95.00th=[ 100], | 99.00th=[ 110], 99.50th=[ 117], 99.90th=[ 213], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 184, max= 352, per=25.39%, avg=253.95, stdev=43.88, samples=39 iops : min= 46, max= 88, avg=63.49, stdev=10.97, samples=39 write: IOPS=65, BW=261KiB/s (267kB/s)(5192KiB/19924msec); 0 zone resets slat (usec): min=53, max=1420, avg=192.30, stdev=98.98 clat (msec): min=31, max=321, avg=166.57, stdev=36.94 lat (msec): min=31, max=321, avg=166.76, stdev=36.94 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 104], 10.00th=[ 121], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 197], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 247], 99.50th=[ 262], 99.90th=[ 313], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 208, max= 368, per=25.09%, avg=261.15, stdev=35.83, samples=39 iops : min= 52, max= 92, avg=65.28, stdev= 8.95, samples=39 lat (msec) : 10=0.23%, 20=0.35%, 50=1.17%, 100=47.34%, 250=50.55% lat (msec) : 500=0.35% cpu : usr=0.19%, sys=2.29%, ctx=4905, 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=183868: Sun Jun 7 01:30:25 2026 read: IOPS=61, BW=248KiB/s (254kB/s)(4976KiB/20068msec) slat (usec): min=1075, max=7317, avg=2462.63, stdev=752.44 clat (msec): min=3, max=140, avg=77.76, stdev=13.33 lat (msec): min=6, max=143, avg=80.23, stdev=13.38 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 63], 20.00th=[ 68], | 30.00th=[ 71], 40.00th=[ 75], 50.00th=[ 79], 60.00th=[ 82], | 70.00th=[ 85], 80.00th=[ 88], 90.00th=[ 94], 95.00th=[ 100], | 99.00th=[ 109], 99.50th=[ 114], 99.90th=[ 138], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 152, max= 400, per=24.77%, avg=247.67, stdev=56.11, samples=39 iops : min= 38, max= 100, avg=61.90, stdev=14.02, samples=39 write: IOPS=65, BW=262KiB/s (269kB/s)(5264KiB/20068msec); 0 zone resets slat (usec): min=57, max=1310, avg=191.34, stdev=96.62 clat (msec): min=57, max=264, avg=167.47, stdev=34.45 lat (msec): min=57, max=265, avg=167.67, stdev=34.45 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 107], 10.00th=[ 121], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 194], 90.00th=[ 211], 95.00th=[ 222], | 99.00th=[ 241], 99.50th=[ 249], 99.90th=[ 262], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 208, max= 352, per=25.08%, avg=261.08, stdev=30.80, samples=39 iops : min= 52, max= 88, avg=65.26, stdev= 7.70, samples=39 lat (msec) : 4=0.04%, 10=0.08%, 20=0.16%, 50=0.55%, 100=47.54% lat (msec) : 250=51.41%, 500=0.23% cpu : usr=0.18%, sys=2.28%, ctx=5008, 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=183869: Sun Jun 7 01:30:25 2026 read: IOPS=62, BW=248KiB/s (254kB/s)(4984KiB/20068msec) slat (usec): min=1129, max=7371, avg=2480.34, stdev=749.84 clat (msec): min=4, max=123, avg=77.73, stdev=13.33 lat (msec): min=7, max=125, avg=80.21, stdev=13.34 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 63], 20.00th=[ 68], | 30.00th=[ 71], 40.00th=[ 75], 50.00th=[ 79], 60.00th=[ 82], | 70.00th=[ 85], 80.00th=[ 88], 90.00th=[ 94], 95.00th=[ 100], | 99.00th=[ 110], 99.50th=[ 114], 99.90th=[ 121], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 136, max= 368, per=24.88%, avg=248.77, stdev=48.96, samples=39 iops : min= 34, max= 92, avg=62.18, stdev=12.24, samples=39 write: IOPS=65, BW=262KiB/s (268kB/s)(5256KiB/20068msec); 0 zone resets slat (usec): min=63, max=1036, avg=192.57, stdev=94.09 clat (msec): min=49, max=268, avg=167.63, stdev=35.65 lat (msec): min=49, max=268, avg=167.82, stdev=35.65 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 105], 10.00th=[ 122], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 199], 90.00th=[ 215], 95.00th=[ 224], | 99.00th=[ 245], 99.50th=[ 255], 99.90th=[ 266], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 184, max= 368, per=25.02%, avg=260.46, stdev=38.97, samples=39 iops : min= 46, max= 92, avg=65.10, stdev= 9.75, samples=39 lat (msec) : 10=0.12%, 20=0.20%, 50=0.62%, 100=47.46%, 250=51.29% lat (msec) : 500=0.31% cpu : usr=0.15%, sys=2.30%, ctx=4976, 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=183870: Sun Jun 7 01:30:25 2026 read: IOPS=63, BW=253KiB/s (259kB/s)(5060KiB/19976msec) slat (usec): min=1092, max=7482, avg=2441.58, stdev=760.06 clat (msec): min=4, max=196, avg=78.19, stdev=14.50 lat (msec): min=6, max=199, avg=80.63, stdev=14.52 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 59], 10.00th=[ 63], 20.00th=[ 68], | 30.00th=[ 72], 40.00th=[ 77], 50.00th=[ 79], 60.00th=[ 83], | 70.00th=[ 85], 80.00th=[ 89], 90.00th=[ 94], 95.00th=[ 100], | 99.00th=[ 110], 99.50th=[ 112], 99.90th=[ 174], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 152, max= 368, per=25.48%, avg=254.82, stdev=48.98, samples=39 iops : min= 38, max= 92, avg=63.69, stdev=12.25, samples=39 write: IOPS=64, BW=259KiB/s (266kB/s)(5180KiB/19976msec); 0 zone resets slat (usec): min=59, max=800, avg=187.31, stdev=87.86 clat (msec): min=32, max=298, avg=167.36, stdev=34.96 lat (msec): min=33, max=298, avg=167.55, stdev=34.96 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 107], 10.00th=[ 123], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 197], 90.00th=[ 209], 95.00th=[ 222], | 99.00th=[ 243], 99.50th=[ 268], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 192, max= 368, per=24.92%, avg=259.44, stdev=32.78, samples=39 iops : min= 48, max= 92, avg=64.85, stdev= 8.20, samples=39 lat (msec) : 10=0.08%, 20=0.31%, 50=0.66%, 100=47.89%, 250=50.70% lat (msec) : 500=0.35% cpu : usr=0.18%, sys=2.24%, ctx=4971, 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=1000KiB/s (1024kB/s), 248KiB/s-253KiB/s (254kB/s-259kB/s), io=19.6MiB (20.5MB), run=19924-20068msec WRITE: bw=1041KiB/s (1066kB/s), 259KiB/s-262KiB/s (266kB/s-269kB/s), io=20.4MiB (21.4MB), run=19924-20068msec 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=183877: Sun Jun 7 01:30:28 2026 read: IOPS=7, BW=315MiB/s (330MB/s)(40.0MiB/127msec) slat (nsec): min=12553k, max=12553k, avg=12553026.00, stdev= 0.00 clat (nsec): min=109315k, max=109315k, avg=109315154.00, stdev= 0.00 lat (nsec): min=121872k, max=121872k, avg=121871534.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 110], | 30.00th=[ 110], 40.00th=[ 110], 50.00th=[ 110], 60.00th=[ 110], | 70.00th=[ 110], 80.00th=[ 110], 90.00th=[ 110], 95.00th=[ 110], | 99.00th=[ 110], 99.50th=[ 110], 99.90th=[ 110], 99.95th=[ 110], | 99.99th=[ 110] lat (msec) : 250=100.00% cpu : usr=0.79%, sys=7.94%, ctx=40, 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=315MiB/s (330MB/s), 315MiB/s-315MiB/s (330MB/s-330MB/s), io=40.0MiB (41.9MB), run=127-127msec 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