== sanity test 398c: run fio to test AIO ================= 02:13:37 (1784700817) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.356343 s, 118 MB/s osc.lustre-OST0000-osc-ffffa04a18a15000.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=184373: Wed Jul 22 02:14:22 2026 write: IOPS=71, BW=285KiB/s (292kB/s)(10.0MiB/35922msec); 0 zone resets slat (usec): min=35, max=39913, avg=430.38, stdev=1692.76 clat (msec): min=26, max=457, avg=223.87, stdev=72.45 lat (msec): min=26, max=457, avg=224.30, stdev=72.51 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 123], 10.00th=[ 140], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 211], 60.00th=[ 239], | 70.00th=[ 262], 80.00th=[ 284], 90.00th=[ 321], 95.00th=[ 355], | 99.00th=[ 418], 99.50th=[ 443], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 132, max= 554, per=24.92%, avg=283.04, stdev=90.84, samples=71 iops : min= 33, max= 138, avg=70.38, stdev=22.74, samples=71 lat (msec) : 50=0.12%, 100=1.88%, 250=64.41%, 500=33.59% cpu : usr=0.18%, sys=1.15%, ctx=2109, 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=184374: Wed Jul 22 02:14:22 2026 write: IOPS=71, BW=284KiB/s (291kB/s)(10.0MiB/36008msec); 0 zone resets slat (usec): min=35, max=25409, avg=387.76, stdev=1448.10 clat (msec): min=84, max=466, avg=224.05, stdev=71.13 lat (msec): min=84, max=466, avg=224.44, stdev=71.24 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 121], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 197], 50.00th=[ 218], 60.00th=[ 236], | 70.00th=[ 257], 80.00th=[ 275], 90.00th=[ 326], 95.00th=[ 363], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 468] bw ( KiB/s): min= 135, max= 472, per=24.94%, avg=283.28, stdev=83.38, samples=71 iops : min= 33, max= 118, avg=70.45, stdev=20.92, samples=71 lat (msec) : 100=2.15%, 250=64.49%, 500=33.36% cpu : usr=0.21%, sys=1.10%, ctx=2388, 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=184375: Wed Jul 22 02:14:22 2026 write: IOPS=71, BW=284KiB/s (291kB/s)(10.0MiB/36005msec); 0 zone resets slat (usec): min=34, max=44435, avg=414.49, stdev=1559.24 clat (msec): min=26, max=482, avg=223.94, stdev=71.66 lat (msec): min=27, max=483, avg=224.35, stdev=71.71 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 124], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 213], 60.00th=[ 236], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 330], 95.00th=[ 355], | 99.00th=[ 418], 99.50th=[ 443], 99.90th=[ 447], 99.95th=[ 481], | 99.99th=[ 485] bw ( KiB/s): min= 135, max= 472, per=24.89%, avg=282.80, stdev=82.10, samples=71 iops : min= 33, max= 118, avg=70.32, stdev=20.58, samples=71 lat (msec) : 50=0.04%, 100=1.60%, 250=65.16%, 500=33.20% cpu : usr=0.18%, sys=1.17%, ctx=2669, 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=184376: Wed Jul 22 02:14:22 2026 write: IOPS=71, BW=284KiB/s (291kB/s)(10.0MiB/36029msec); 0 zone resets slat (usec): min=36, max=42290, avg=401.50, stdev=1428.05 clat (msec): min=16, max=480, avg=223.96, stdev=71.17 lat (msec): min=17, max=480, avg=224.36, stdev=71.24 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 122], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 215], 60.00th=[ 232], | 70.00th=[ 255], 80.00th=[ 284], 90.00th=[ 326], 95.00th=[ 359], | 99.00th=[ 422], 99.50th=[ 460], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 124, max= 453, per=24.94%, avg=283.30, stdev=81.05, samples=71 iops : min= 31, max= 113, avg=70.48, stdev=20.31, samples=71 lat (msec) : 20=0.04%, 50=0.04%, 100=0.86%, 250=67.03%, 500=32.03% cpu : usr=0.21%, sys=1.05%, ctx=2543, 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=1137KiB/s (1164kB/s), 284KiB/s-285KiB/s (291kB/s-292kB/s), io=40.0MiB (41.9MB), run=35922-36029msec 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=184392: Wed Jul 22 02:15:00 2026 read: IOPS=42, BW=168KiB/s (172kB/s)(5048KiB/30045msec) slat (usec): min=2400, max=67999, avg=13932.61, stdev=7523.53 clat (msec): min=87, max=351, avg=180.15, stdev=48.39 lat (msec): min=95, max=395, avg=194.10, stdev=50.37 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 113], 10.00th=[ 123], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 84, max= 253, per=25.09%, avg=167.34, stdev=39.18, samples=59 iops : min= 21, max= 63, avg=41.36, stdev= 9.82, samples=59 write: IOPS=43, BW=173KiB/s (177kB/s)(5192KiB/30045msec); 0 zone resets slat (usec): min=43, max=13292, avg=350.38, stdev=871.55 clat (msec): min=82, max=340, avg=178.74, stdev=45.44 lat (msec): min=83, max=340, avg=179.10, stdev=45.49 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 266], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 79, max= 310, per=24.80%, avg=172.34, stdev=50.99, samples=59 iops : min= 19, max= 77, avg=42.61, stdev=12.77, samples=59 lat (msec) : 100=1.33%, 250=90.27%, 500=8.40% cpu : usr=0.33%, sys=2.42%, ctx=4694, 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=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=184393: Wed Jul 22 02:15:00 2026 read: IOPS=41, BW=167KiB/s (171kB/s)(4976KiB/29772msec) slat (usec): min=72, max=56697, avg=13629.03, stdev=7339.52 clat (msec): min=14, max=459, avg=177.76, stdev=50.09 lat (msec): min=16, max=471, avg=191.40, stdev=52.14 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 111], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 215], 90.00th=[ 245], 95.00th=[ 266], | 99.00th=[ 334], 99.50th=[ 347], 99.90th=[ 388], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 71, max= 271, per=24.85%, avg=165.76, stdev=39.40, samples=59 iops : min= 17, max= 67, avg=40.95, stdev= 9.87, samples=59 write: IOPS=44, BW=177KiB/s (181kB/s)(5264KiB/29772msec); 0 zone resets slat (usec): min=45, max=15172, avg=397.71, stdev=985.91 clat (msec): min=44, max=403, avg=179.92, stdev=48.97 lat (msec): min=44, max=403, avg=180.32, stdev=49.03 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 113], 10.00th=[ 126], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 247], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 338], 99.90th=[ 376], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 71, max= 286, per=25.30%, avg=175.86, stdev=48.41, samples=59 iops : min= 17, max= 71, avg=43.49, stdev=12.15, samples=59 lat (msec) : 20=0.08%, 50=0.20%, 100=1.41%, 250=89.30%, 500=9.02% cpu : usr=0.28%, sys=2.16%, ctx=4248, 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=184394: Wed Jul 22 02:15:00 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(4984KiB/30024msec) slat (usec): min=2307, max=84881, avg=13773.23, stdev=7666.94 clat (msec): min=77, max=382, avg=176.58, stdev=48.22 lat (msec): min=84, max=395, avg=190.37, stdev=50.47 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 111], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 182], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 241], 95.00th=[ 268], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 380], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 63, max= 277, per=24.81%, avg=165.51, stdev=45.24, samples=59 iops : min= 15, max= 69, avg=40.88, stdev=11.38, samples=59 write: IOPS=43, BW=175KiB/s (179kB/s)(5256KiB/30024msec); 0 zone resets slat (usec): min=46, max=17124, avg=416.24, stdev=1066.41 clat (msec): min=86, max=378, avg=182.30, stdev=49.33 lat (msec): min=86, max=378, avg=182.72, stdev=49.35 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 355], 99.90th=[ 368], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 70, max= 270, per=25.02%, avg=173.88, stdev=46.18, samples=59 iops : min= 17, max= 67, avg=43.00, stdev=11.58, samples=59 lat (msec) : 100=1.33%, 250=89.30%, 500=9.38% cpu : usr=0.30%, sys=2.34%, ctx=4674, 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=184395: Wed Jul 22 02:15:00 2026 read: IOPS=42, BW=169KiB/s (173kB/s)(5060KiB/29974msec) slat (usec): min=2884, max=78805, avg=13497.43, stdev=7672.85 clat (msec): min=25, max=367, avg=176.31, stdev=48.39 lat (msec): min=47, max=385, avg=189.81, stdev=50.89 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 109], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 241], 95.00th=[ 266], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 355], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 78, max= 294, per=25.32%, avg=168.88, stdev=45.86, samples=59 iops : min= 19, max= 73, avg=41.73, stdev=11.54, samples=59 write: IOPS=43, BW=173KiB/s (177kB/s)(5180KiB/29974msec); 0 zone resets slat (usec): min=54, max=12060, avg=334.64, stdev=748.18 clat (msec): min=89, max=426, avg=182.09, stdev=50.02 lat (msec): min=90, max=426, avg=182.42, stdev=50.01 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 115], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 222], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 342], 99.50th=[ 363], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 102, max= 269, per=24.79%, avg=172.31, stdev=41.26, samples=59 iops : min= 25, max= 67, avg=42.63, stdev=10.30, samples=59 lat (msec) : 50=0.04%, 100=1.72%, 250=89.18%, 500=9.06% cpu : usr=0.22%, sys=2.20%, ctx=4636, 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=668KiB/s (684kB/s), 166KiB/s-169KiB/s (170kB/s-173kB/s), io=19.6MiB (20.5MB), run=29772-30045msec WRITE: bw=695KiB/s (712kB/s), 173KiB/s-177KiB/s (177kB/s-181kB/s), io=20.4MiB (21.4MB), run=29772-30045msec 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=184404: Wed Jul 22 02:15:10 2026 read: IOPS=1, BW=71.8MiB/s (75.3MB/s)(40.0MiB/557msec) slat (nsec): min=30279k, max=30279k, avg=30278698.00, stdev= 0.00 clat (nsec): min=503664k, max=503664k, avg=503664478.00, stdev= 0.00 lat (nsec): min=533976k, max=533976k, avg=533975887.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.16%, ctx=9, majf=0, minf=10 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=71.8MiB/s (75.3MB/s), 71.8MiB/s-71.8MiB/s (75.3MB/s-75.3MB/s), io=40.0MiB (41.9MB), run=557-557msec 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