== sanity test 398c: run fio to test AIO ================= 16:16:06 (1787861766) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.73194 s, 57.3 MB/s osc.lustre-OST0000-osc-ffff8a119249a000.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=180017: Thu Aug 27 16:16:50 2026 write: IOPS=86, BW=348KiB/s (356kB/s)(10.0MiB/29454msec); 0 zone resets slat (usec): min=22, max=20065, avg=196.25, stdev=877.60 clat (msec): min=26, max=372, avg=182.88, stdev=61.99 lat (msec): min=27, max=372, avg=183.07, stdev=61.99 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 91], 10.00th=[ 103], 20.00th=[ 126], | 30.00th=[ 144], 40.00th=[ 161], 50.00th=[ 182], 60.00th=[ 197], | 70.00th=[ 215], 80.00th=[ 236], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 142, max= 638, per=24.91%, avg=346.28, stdev=96.70, samples=58 iops : min= 35, max= 159, avg=86.17, stdev=24.22, samples=58 lat (msec) : 50=0.23%, 100=8.79%, 250=75.90%, 500=15.08% cpu : usr=0.19%, sys=0.93%, ctx=2607, 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=180018: Thu Aug 27 16:16:50 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29350msec); 0 zone resets slat (usec): min=22, max=40253, avg=227.79, stdev=1106.61 clat (msec): min=18, max=383, avg=182.83, stdev=62.34 lat (msec): min=18, max=383, avg=183.06, stdev=62.36 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 89], 10.00th=[ 103], 20.00th=[ 124], | 30.00th=[ 144], 40.00th=[ 161], 50.00th=[ 182], 60.00th=[ 197], | 70.00th=[ 222], 80.00th=[ 239], 90.00th=[ 266], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 372], 99.90th=[ 380], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 151, max= 638, per=25.01%, avg=347.69, stdev=99.55, samples=58 iops : min= 37, max= 159, avg=86.52, stdev=24.91, samples=58 lat (msec) : 20=0.04%, 50=0.27%, 100=8.98%, 250=77.42%, 500=13.28% cpu : usr=0.20%, sys=1.04%, ctx=2570, 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=180019: Thu Aug 27 16:16:50 2026 write: IOPS=87, BW=348KiB/s (356kB/s)(10.0MiB/29424msec); 0 zone resets slat (usec): min=22, max=15606, avg=203.93, stdev=807.73 clat (msec): min=18, max=374, avg=182.87, stdev=61.21 lat (msec): min=18, max=374, avg=183.08, stdev=61.22 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 90], 10.00th=[ 104], 20.00th=[ 125], | 30.00th=[ 146], 40.00th=[ 163], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 218], 80.00th=[ 239], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 355], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 142, max= 608, per=24.88%, avg=345.83, stdev=98.42, samples=58 iops : min= 35, max= 152, avg=86.05, stdev=24.66, samples=58 lat (msec) : 20=0.04%, 50=0.12%, 100=9.02%, 250=76.72%, 500=14.10% cpu : usr=0.19%, sys=0.93%, ctx=2710, 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=180020: Thu Aug 27 16:16:50 2026 write: IOPS=86, BW=348KiB/s (356kB/s)(10.0MiB/29460msec); 0 zone resets slat (usec): min=22, max=16988, avg=199.79, stdev=748.08 clat (msec): min=15, max=363, avg=182.85, stdev=60.67 lat (msec): min=15, max=363, avg=183.06, stdev=60.68 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 88], 10.00th=[ 101], 20.00th=[ 126], | 30.00th=[ 146], 40.00th=[ 163], 50.00th=[ 182], 60.00th=[ 201], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 259], 95.00th=[ 292], | 99.00th=[ 330], 99.50th=[ 359], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 127, max= 630, per=24.82%, avg=345.00, stdev=97.71, samples=58 iops : min= 31, max= 157, avg=85.88, stdev=24.49, samples=58 lat (msec) : 20=0.08%, 50=0.04%, 100=9.30%, 250=77.62%, 500=12.97% cpu : usr=0.15%, sys=0.85%, ctx=2017, 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=1390KiB/s (1424kB/s), 348KiB/s-349KiB/s (356kB/s-357kB/s), io=40.0MiB (41.9MB), run=29350-29460msec 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=180034: Thu Aug 27 16:17:30 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(5048KiB/31367msec) slat (usec): min=2072, max=62005, avg=14013.29, stdev=8401.15 clat (msec): min=32, max=408, avg=184.01, stdev=51.48 lat (msec): min=42, max=425, avg=198.03, stdev=54.15 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 380], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 74, max= 269, per=24.95%, avg=159.41, stdev=41.17, samples=61 iops : min= 18, max= 67, avg=39.46, stdev=10.29, samples=61 write: IOPS=41, BW=166KiB/s (169kB/s)(5192KiB/31367msec); 0 zone resets slat (usec): min=25, max=13807, avg=207.36, stdev=701.64 clat (msec): min=53, max=384, avg=190.43, stdev=47.44 lat (msec): min=53, max=384, avg=190.64, stdev=47.46 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 64, max= 293, per=24.77%, avg=164.74, stdev=44.39, samples=61 iops : min= 16, max= 73, avg=40.80, stdev=11.07, samples=61 lat (msec) : 50=0.04%, 100=1.95%, 250=88.05%, 500=9.96% cpu : usr=0.29%, sys=1.97%, ctx=4399, 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=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=180035: Thu Aug 27 16:17:30 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(4976KiB/31283msec) slat (usec): min=37, max=67677, avg=13897.98, stdev=8232.51 clat (msec): min=22, max=368, avg=186.14, stdev=51.40 lat (msec): min=32, max=394, avg=200.05, stdev=53.56 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 110], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 255], 95.00th=[ 288], | 99.00th=[ 326], 99.50th=[ 334], 99.90th=[ 351], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 91, max= 246, per=24.73%, avg=158.03, stdev=38.94, samples=61 iops : min= 22, max= 61, avg=39.08, stdev= 9.72, samples=61 write: IOPS=42, BW=168KiB/s (172kB/s)(5264KiB/31283msec); 0 zone resets slat (usec): min=24, max=18683, avg=262.91, stdev=1072.36 clat (msec): min=76, max=346, avg=190.54, stdev=45.95 lat (msec): min=76, max=346, avg=190.81, stdev=45.94 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 117], 10.00th=[ 132], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 228], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 300], 99.50th=[ 326], 99.90th=[ 338], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 79, max= 317, per=25.16%, avg=167.33, stdev=46.03, samples=61 iops : min= 19, max= 79, avg=41.43, stdev=11.50, samples=61 lat (msec) : 50=0.04%, 100=2.46%, 250=87.07%, 500=10.43% cpu : usr=0.23%, sys=1.68%, ctx=4280, 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=180036: Thu Aug 27 16:17:30 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(4984KiB/31364msec) slat (usec): min=2544, max=77597, avg=13878.69, stdev=8268.20 clat (msec): min=15, max=365, avg=185.28, stdev=50.64 lat (msec): min=24, max=387, avg=199.17, stdev=52.71 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 109], 10.00th=[ 125], 20.00th=[ 142], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 251], 95.00th=[ 279], | 99.00th=[ 334], 99.50th=[ 347], 99.90th=[ 351], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 79, max= 271, per=24.75%, avg=158.15, stdev=39.69, samples=61 iops : min= 19, max= 67, avg=39.15, stdev= 9.85, samples=61 write: IOPS=41, BW=168KiB/s (172kB/s)(5256KiB/31364msec); 0 zone resets slat (usec): min=22, max=13935, avg=222.31, stdev=738.98 clat (msec): min=61, max=362, avg=190.20, stdev=47.25 lat (msec): min=61, max=363, avg=190.42, stdev=47.23 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 113], 10.00th=[ 132], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 347], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 69, max= 325, per=24.87%, avg=165.39, stdev=47.90, samples=61 iops : min= 17, max= 81, avg=40.95, stdev=11.97, samples=61 lat (msec) : 20=0.04%, 100=2.46%, 250=87.46%, 500=10.04% cpu : usr=0.23%, sys=1.78%, ctx=4482, 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=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=180037: Thu Aug 27 16:17:30 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(5060KiB/31383msec) slat (usec): min=2495, max=71017, avg=13773.90, stdev=8156.14 clat (msec): min=22, max=356, avg=185.41, stdev=51.33 lat (msec): min=26, max=396, avg=199.19, stdev=53.96 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 109], 10.00th=[ 124], 20.00th=[ 142], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 251], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 58, max= 253, per=25.03%, avg=159.93, stdev=39.27, samples=61 iops : min= 14, max= 63, avg=39.61, stdev= 9.80, samples=61 write: IOPS=41, BW=165KiB/s (169kB/s)(5180KiB/31383msec); 0 zone resets slat (usec): min=24, max=14899, avg=229.46, stdev=861.29 clat (msec): min=21, max=356, avg=189.29, stdev=47.80 lat (msec): min=21, max=356, avg=189.52, stdev=47.80 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 120], 10.00th=[ 134], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 69, max= 301, per=24.52%, avg=163.05, stdev=43.92, samples=61 iops : min= 17, max= 75, avg=40.36, stdev=10.99, samples=61 lat (msec) : 50=0.43%, 100=1.88%, 250=87.58%, 500=10.12% cpu : usr=0.28%, sys=1.67%, ctx=4309, 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=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=639KiB/s (655kB/s), 159KiB/s-161KiB/s (163kB/s-165kB/s), io=19.6MiB (20.5MB), run=31283-31383msec WRITE: bw=666KiB/s (682kB/s), 165KiB/s-168KiB/s (169kB/s-172kB/s), io=20.4MiB (21.4MB), run=31283-31383msec 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=180046: Thu Aug 27 16:17:40 2026 read: IOPS=2, BW=87.9MiB/s (92.2MB/s)(40.0MiB/455msec) slat (nsec): min=34053k, max=34053k, avg=34053332.00, stdev= 0.00 clat (nsec): min=394515k, max=394515k, avg=394515081.00, stdev= 0.00 lat (nsec): min=428573k, max=428573k, avg=428573081.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] lat (msec) : 500=100.00% cpu : usr=0.66%, sys=3.74%, ctx=14, 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=87.9MiB/s (92.2MB/s), 87.9MiB/s-87.9MiB/s (92.2MB/s-92.2MB/s), io=40.0MiB (41.9MB), run=455-455msec 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