== sanity test 398c: run fio to test AIO ================= 22:34:08 (1783564448) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.192777 s, 218 MB/s osc.lustre-OST0000-osc-ffff8c05c309f800.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=152319: Wed Jul 8 22:35:13 2026 write: IOPS=42, BW=168KiB/s (172kB/s)(10.0MiB/60899msec); 0 zone resets slat (usec): min=35, max=7314, avg=226.85, stdev=345.87 clat (msec): min=94, max=719, avg=380.18, stdev=105.74 lat (msec): min=94, max=719, avg=380.41, stdev=105.77 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 207], 10.00th=[ 251], 20.00th=[ 292], | 30.00th=[ 321], 40.00th=[ 351], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 435], 80.00th=[ 468], 90.00th=[ 518], 95.00th=[ 558], | 99.00th=[ 625], 99.50th=[ 676], 99.90th=[ 709], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 71, max= 416, per=24.87%, avg=167.12, stdev=51.64, samples=121 iops : min= 17, max= 104, avg=41.53, stdev=12.94, samples=121 lat (msec) : 100=0.62%, 250=8.98%, 500=77.15%, 750=13.24% cpu : usr=0.08%, sys=0.62%, ctx=3136, 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=152320: Wed Jul 8 22:35:13 2026 write: IOPS=42, BW=169KiB/s (173kB/s)(10.0MiB/60721msec); 0 zone resets slat (usec): min=35, max=6109, avg=225.45, stdev=316.77 clat (msec): min=75, max=738, avg=378.89, stdev=107.53 lat (msec): min=75, max=739, avg=379.12, stdev=107.55 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 199], 10.00th=[ 245], 20.00th=[ 288], | 30.00th=[ 321], 40.00th=[ 355], 50.00th=[ 380], 60.00th=[ 401], | 70.00th=[ 430], 80.00th=[ 472], 90.00th=[ 518], 95.00th=[ 550], | 99.00th=[ 634], 99.50th=[ 684], 99.90th=[ 718], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 71, max= 376, per=25.06%, avg=168.42, stdev=51.52, samples=120 iops : min= 17, max= 94, avg=41.85, stdev=12.93, samples=120 lat (msec) : 100=0.62%, 250=10.51%, 500=75.51%, 750=13.36% cpu : usr=0.09%, sys=0.64%, ctx=3043, 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=152321: Wed Jul 8 22:35:13 2026 write: IOPS=42, BW=168KiB/s (172kB/s)(10.0MiB/60857msec); 0 zone resets slat (usec): min=35, max=5325, avg=226.55, stdev=319.71 clat (msec): min=94, max=795, avg=379.71, stdev=106.77 lat (msec): min=94, max=796, avg=379.94, stdev=106.79 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 199], 10.00th=[ 247], 20.00th=[ 292], | 30.00th=[ 321], 40.00th=[ 351], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 435], 80.00th=[ 468], 90.00th=[ 518], 95.00th=[ 558], | 99.00th=[ 625], 99.50th=[ 676], 99.90th=[ 735], 99.95th=[ 751], | 99.99th=[ 793] bw ( KiB/s): min= 79, max= 384, per=24.90%, avg=167.32, stdev=49.53, samples=121 iops : min= 19, max= 96, avg=41.58, stdev=12.42, samples=121 lat (msec) : 100=0.62%, 250=10.31%, 500=76.09%, 750=12.89%, 1000=0.08% cpu : usr=0.08%, sys=0.64%, ctx=3043, 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=152322: Wed Jul 8 22:35:13 2026 write: IOPS=42, BW=168KiB/s (172kB/s)(10.0MiB/60896msec); 0 zone resets slat (usec): min=36, max=6343, avg=239.13, stdev=342.09 clat (msec): min=17, max=739, avg=379.95, stdev=104.62 lat (msec): min=17, max=739, avg=380.19, stdev=104.63 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 197], 10.00th=[ 245], 20.00th=[ 296], | 30.00th=[ 326], 40.00th=[ 355], 50.00th=[ 380], 60.00th=[ 405], | 70.00th=[ 435], 80.00th=[ 472], 90.00th=[ 518], 95.00th=[ 550], | 99.00th=[ 625], 99.50th=[ 659], 99.90th=[ 718], 99.95th=[ 735], | 99.99th=[ 743] bw ( KiB/s): min= 95, max= 320, per=24.90%, avg=167.31, stdev=47.43, samples=121 iops : min= 23, max= 80, avg=41.57, stdev=11.90, samples=121 lat (msec) : 20=0.04%, 250=11.29%, 500=75.70%, 750=12.97% cpu : usr=0.07%, sys=0.65%, ctx=3219, 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=673KiB/s (689kB/s), 168KiB/s-169KiB/s (172kB/s-173kB/s), io=40.0MiB (41.9MB), run=60721-60899msec 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=152340: Wed Jul 8 22:35:59 2026 read: IOPS=29, BW=119KiB/s (122kB/s)(5048KiB/42288msec) slat (usec): min=1677, max=21272, avg=5537.24, stdev=2625.12 clat (msec): min=9, max=330, avg=167.68, stdev=40.38 lat (msec): min=15, max=334, avg=173.22, stdev=41.03 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 112], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 326], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 24, max= 231, per=25.07%, avg=118.82, stdev=42.92, samples=84 iops : min= 6, max= 57, avg=29.43, stdev=10.81, samples=84 write: IOPS=30, BW=123KiB/s (126kB/s)(5192KiB/42288msec); 0 zone resets slat (usec): min=50, max=5314, avg=246.39, stdev=369.19 clat (msec): min=107, max=751, avg=351.53, stdev=106.92 lat (msec): min=107, max=751, avg=351.78, stdev=106.94 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 207], 10.00th=[ 230], 20.00th=[ 262], | 30.00th=[ 284], 40.00th=[ 309], 50.00th=[ 338], 60.00th=[ 368], | 70.00th=[ 401], 80.00th=[ 430], 90.00th=[ 485], 95.00th=[ 558], | 99.00th=[ 667], 99.50th=[ 701], 99.90th=[ 726], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 24, max= 192, per=24.73%, avg=122.17, stdev=33.40, samples=84 iops : min= 6, max= 48, avg=30.26, stdev= 8.39, samples=84 lat (msec) : 10=0.04%, 20=0.08%, 50=0.08%, 100=0.78%, 250=54.57% lat (msec) : 500=39.77%, 750=4.65%, 1000=0.04% cpu : usr=0.15%, sys=1.27%, ctx=5066, 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=152341: Wed Jul 8 22:35:59 2026 read: IOPS=29, BW=118KiB/s (120kB/s)(4976KiB/42288msec) slat (usec): min=1582, max=26235, avg=5454.41, stdev=2727.02 clat (msec): min=11, max=318, avg=165.17, stdev=38.37 lat (msec): min=14, max=328, avg=170.63, stdev=39.01 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 113], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 300], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 23, max= 223, per=24.70%, avg=117.08, stdev=42.78, samples=84 iops : min= 5, max= 55, avg=29.00, stdev=10.75, samples=84 write: IOPS=31, BW=124KiB/s (127kB/s)(5264KiB/42288msec); 0 zone resets slat (usec): min=40, max=6773, avg=247.35, stdev=351.12 clat (msec): min=119, max=818, avg=351.80, stdev=108.37 lat (msec): min=119, max=818, avg=352.05, stdev=108.38 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 199], 10.00th=[ 232], 20.00th=[ 264], | 30.00th=[ 288], 40.00th=[ 309], 50.00th=[ 338], 60.00th=[ 368], | 70.00th=[ 397], 80.00th=[ 430], 90.00th=[ 489], 95.00th=[ 575], | 99.00th=[ 659], 99.50th=[ 709], 99.90th=[ 751], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 47, max= 192, per=25.06%, avg=123.79, stdev=31.41, samples=84 iops : min= 11, max= 48, avg=30.68, stdev= 7.92, samples=84 lat (msec) : 20=0.12%, 50=0.16%, 100=0.70%, 250=54.18%, 500=40.04% lat (msec) : 750=4.69%, 1000=0.12% cpu : usr=0.13%, sys=1.25%, ctx=5138, 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=152342: Wed Jul 8 22:35:59 2026 read: IOPS=29, BW=118KiB/s (121kB/s)(4984KiB/42288msec) slat (usec): min=1750, max=19167, avg=5516.22, stdev=2599.31 clat (msec): min=5, max=324, avg=166.20, stdev=41.24 lat (msec): min=11, max=330, avg=171.72, stdev=41.87 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 184], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 241], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 200, per=24.84%, avg=117.76, stdev=41.93, samples=84 iops : min= 7, max= 50, avg=29.17, stdev=10.57, samples=84 write: IOPS=31, BW=124KiB/s (127kB/s)(5256KiB/42288msec); 0 zone resets slat (usec): min=37, max=5895, avg=244.17, stdev=377.73 clat (msec): min=126, max=797, avg=350.78, stdev=106.55 lat (msec): min=126, max=798, avg=351.03, stdev=106.57 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 207], 10.00th=[ 232], 20.00th=[ 262], | 30.00th=[ 288], 40.00th=[ 313], 50.00th=[ 338], 60.00th=[ 368], | 70.00th=[ 397], 80.00th=[ 422], 90.00th=[ 481], 95.00th=[ 575], | 99.00th=[ 659], 99.50th=[ 735], 99.90th=[ 793], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 55, max= 208, per=24.94%, avg=123.19, stdev=32.52, samples=84 iops : min= 13, max= 52, avg=30.52, stdev= 8.15, samples=84 lat (msec) : 10=0.12%, 20=0.08%, 50=0.08%, 100=0.82%, 250=53.87% lat (msec) : 500=40.82%, 750=4.02%, 1000=0.20% cpu : usr=0.14%, sys=1.21%, ctx=5057, 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=152343: Wed Jul 8 22:35:59 2026 read: IOPS=30, BW=120KiB/s (123kB/s)(5060KiB/41997msec) slat (usec): min=95, max=16685, avg=5445.65, stdev=2586.41 clat (msec): min=5, max=322, avg=167.35, stdev=42.89 lat (msec): min=7, max=328, avg=172.80, stdev=43.58 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 245], | 99.00th=[ 292], 99.50th=[ 296], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 32, max= 224, per=25.39%, avg=120.35, stdev=38.70, samples=83 iops : min= 8, max= 56, avg=29.81, stdev= 9.71, samples=83 write: IOPS=30, BW=123KiB/s (126kB/s)(5180KiB/41997msec); 0 zone resets slat (usec): min=50, max=7906, avg=259.86, stdev=476.60 clat (msec): min=58, max=772, avg=349.52, stdev=109.43 lat (msec): min=58, max=773, avg=349.78, stdev=109.41 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 199], 10.00th=[ 228], 20.00th=[ 264], | 30.00th=[ 284], 40.00th=[ 309], 50.00th=[ 334], 60.00th=[ 363], | 70.00th=[ 397], 80.00th=[ 426], 90.00th=[ 485], 95.00th=[ 567], | 99.00th=[ 676], 99.50th=[ 709], 99.90th=[ 760], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 48, max= 200, per=24.83%, avg=122.65, stdev=34.11, samples=83 iops : min= 12, max= 50, avg=30.39, stdev= 8.60, samples=83 lat (msec) : 10=0.16%, 20=0.12%, 50=0.27%, 100=0.90%, 250=53.98% lat (msec) : 500=39.92%, 750=4.57%, 1000=0.08% cpu : usr=0.13%, sys=1.29%, ctx=5114, 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=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=475KiB/s (486kB/s), 118KiB/s-120KiB/s (120kB/s-123kB/s), io=19.6MiB (20.5MB), run=41997-42288msec WRITE: bw=494KiB/s (506kB/s), 123KiB/s-124KiB/s (126kB/s-127kB/s), io=20.4MiB (21.4MB), run=41997-42288msec 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=152353: Wed Jul 8 22:36:04 2026 read: IOPS=4, BW=190MiB/s (199MB/s)(40.0MiB/211msec) slat (nsec): min=16203k, max=16203k, avg=16203255.00, stdev= 0.00 clat (nsec): min=183742k, max=183742k, avg=183742425.00, stdev= 0.00 lat (nsec): min=199950k, max=199950k, avg=199950190.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 184], | 70.00th=[ 184], 80.00th=[ 184], 90.00th=[ 184], 95.00th=[ 184], | 99.00th=[ 184], 99.50th=[ 184], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=5.24%, ctx=44, majf=0, minf=7 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=190MiB/s (199MB/s), 190MiB/s-190MiB/s (199MB/s-199MB/s), io=40.0MiB (41.9MB), run=211-211msec 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