== sanity test 398c: run fio to test AIO ================= 18:00:35 (1788645635) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.559751 s, 74.9 MB/s osc.lustre-OST0000-osc-ffff950ac55ba800.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=180392: Sat Sep 5 18:01:18 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30263msec); 0 zone resets slat (usec): min=21, max=22206, avg=220.72, stdev=1067.96 clat (msec): min=32, max=369, avg=187.75, stdev=61.53 lat (msec): min=32, max=369, avg=187.98, stdev=61.56 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 97], 10.00th=[ 111], 20.00th=[ 131], | 30.00th=[ 150], 40.00th=[ 167], 50.00th=[ 182], 60.00th=[ 197], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 184, max= 590, per=24.97%, avg=337.83, stdev=98.34, samples=59 iops : min= 46, max= 147, avg=84.19, stdev=24.55, samples=59 lat (msec) : 50=0.20%, 100=5.20%, 250=78.09%, 500=16.52% cpu : usr=0.14%, sys=0.95%, ctx=2785, 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=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=180393: Sat Sep 5 18:01:18 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30181msec); 0 zone resets slat (usec): min=21, max=32879, avg=207.88, stdev=981.16 clat (msec): min=19, max=384, avg=187.39, stdev=63.14 lat (msec): min=20, max=384, avg=187.60, stdev=63.16 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 100], 10.00th=[ 112], 20.00th=[ 129], | 30.00th=[ 148], 40.00th=[ 163], 50.00th=[ 180], 60.00th=[ 197], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 330], 99.50th=[ 355], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 160, max= 616, per=25.16%, avg=340.36, stdev=109.78, samples=59 iops : min= 40, max= 154, avg=84.81, stdev=27.40, samples=59 lat (msec) : 20=0.04%, 50=0.08%, 100=5.66%, 250=77.34%, 500=16.88% cpu : usr=0.16%, sys=0.73%, ctx=2943, 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=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=180394: Sat Sep 5 18:01:18 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30069msec); 0 zone resets slat (usec): min=22, max=22164, avg=189.29, stdev=890.85 clat (msec): min=20, max=446, avg=187.50, stdev=62.28 lat (msec): min=20, max=446, avg=187.69, stdev=62.30 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 97], 10.00th=[ 110], 20.00th=[ 131], | 30.00th=[ 148], 40.00th=[ 165], 50.00th=[ 182], 60.00th=[ 201], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 284], 95.00th=[ 296], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 359], 99.95th=[ 372], | 99.99th=[ 447] bw ( KiB/s): min= 190, max= 622, per=25.17%, avg=340.51, stdev=101.97, samples=59 iops : min= 47, max= 155, avg=84.85, stdev=25.48, samples=59 lat (msec) : 50=0.20%, 100=5.86%, 250=76.88%, 500=17.07% cpu : usr=0.18%, sys=0.90%, ctx=2965, 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=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=180395: Sat Sep 5 18:01:18 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30238msec); 0 zone resets slat (usec): min=20, max=17512, avg=170.05, stdev=742.58 clat (msec): min=63, max=379, avg=187.73, stdev=61.61 lat (msec): min=63, max=379, avg=187.90, stdev=61.63 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 99], 10.00th=[ 112], 20.00th=[ 132], | 30.00th=[ 148], 40.00th=[ 165], 50.00th=[ 180], 60.00th=[ 201], | 70.00th=[ 218], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 380], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 128, max= 630, per=24.95%, avg=337.59, stdev=112.60, samples=59 iops : min= 32, max= 157, avg=84.14, stdev=28.14, samples=59 lat (msec) : 100=6.17%, 250=77.97%, 500=15.86% cpu : usr=0.13%, sys=0.60%, ctx=1515, 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=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=1353KiB/s (1386kB/s), 338KiB/s-341KiB/s (346kB/s-349kB/s), io=40.0MiB (41.9MB), run=30069-30263msec 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=180420: Sat Sep 5 18:02:07 2026 read: IOPS=32, BW=129KiB/s (132kB/s)(5048KiB/39166msec) slat (usec): min=2421, max=96366, avg=16905.11, stdev=10486.73 clat (msec): min=64, max=472, avg=231.21, stdev=65.24 lat (msec): min=75, max=492, avg=248.12, stdev=68.62 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 150], 10.00th=[ 161], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 234], | 70.00th=[ 255], 80.00th=[ 284], 90.00th=[ 326], 95.00th=[ 359], | 99.00th=[ 418], 99.50th=[ 435], 99.90th=[ 456], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 21, max= 223, per=25.10%, avg=128.53, stdev=37.42, samples=77 iops : min= 5, max= 55, avg=31.62, stdev= 9.39, samples=77 write: IOPS=33, BW=133KiB/s (136kB/s)(5192KiB/39166msec); 0 zone resets slat (usec): min=22, max=16781, avg=241.61, stdev=1014.90 clat (msec): min=33, max=480, avg=237.78, stdev=64.12 lat (msec): min=34, max=480, avg=238.02, stdev=64.11 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 157], 10.00th=[ 167], 20.00th=[ 184], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 224], 60.00th=[ 241], | 70.00th=[ 264], 80.00th=[ 292], 90.00th=[ 330], 95.00th=[ 359], | 99.00th=[ 414], 99.50th=[ 430], 99.90th=[ 477], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 7, max= 231, per=24.78%, avg=132.06, stdev=41.21, samples=77 iops : min= 1, max= 57, avg=32.51, stdev=10.36, samples=77 lat (msec) : 50=0.04%, 100=0.31%, 250=65.43%, 500=34.22% cpu : usr=0.23%, sys=1.63%, ctx=4526, 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=180421: Sat Sep 5 18:02:07 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(4976KiB/39164msec) slat (usec): min=2199, max=93199, avg=16891.55, stdev=10393.71 clat (msec): min=94, max=484, avg=229.82, stdev=64.58 lat (msec): min=106, max=530, avg=246.72, stdev=67.94 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 150], 10.00th=[ 161], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 232], | 70.00th=[ 253], 80.00th=[ 284], 90.00th=[ 321], 95.00th=[ 355], | 99.00th=[ 409], 99.50th=[ 426], 99.90th=[ 477], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 29, max= 207, per=24.71%, avg=126.52, stdev=36.23, samples=77 iops : min= 7, max= 51, avg=31.12, stdev= 9.08, samples=77 write: IOPS=33, BW=134KiB/s (138kB/s)(5264KiB/39164msec); 0 zone resets slat (usec): min=22, max=10681, avg=223.54, stdev=792.64 clat (msec): min=40, max=467, avg=239.71, stdev=64.12 lat (msec): min=40, max=469, avg=239.93, stdev=64.16 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 159], 10.00th=[ 169], 20.00th=[ 190], | 30.00th=[ 201], 40.00th=[ 209], 50.00th=[ 224], 60.00th=[ 243], | 70.00th=[ 266], 80.00th=[ 292], 90.00th=[ 330], 95.00th=[ 368], | 99.00th=[ 422], 99.50th=[ 430], 99.90th=[ 451], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 40, max= 238, per=25.19%, avg=134.29, stdev=40.89, samples=77 iops : min= 10, max= 59, avg=33.05, stdev=10.22, samples=77 lat (msec) : 50=0.04%, 100=0.08%, 250=65.51%, 500=34.38% cpu : usr=0.21%, sys=1.48%, ctx=4469, 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=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=180422: Sat Sep 5 18:02:07 2026 read: IOPS=32, BW=128KiB/s (131kB/s)(4984KiB/38826msec) slat (usec): min=31, max=85800, avg=16950.08, stdev=10799.88 clat (msec): min=22, max=518, avg=229.79, stdev=68.23 lat (msec): min=43, max=526, avg=246.74, stdev=71.59 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 234], | 70.00th=[ 253], 80.00th=[ 284], 90.00th=[ 326], 95.00th=[ 363], | 99.00th=[ 426], 99.50th=[ 447], 99.90th=[ 493], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 55, max= 287, per=25.14%, avg=128.70, stdev=40.85, samples=76 iops : min= 13, max= 71, avg=31.64, stdev=10.24, samples=76 write: IOPS=33, BW=135KiB/s (139kB/s)(5256KiB/38826msec); 0 zone resets slat (usec): min=26, max=16017, avg=218.13, stdev=912.24 clat (msec): min=55, max=553, avg=237.54, stdev=66.41 lat (msec): min=55, max=554, avg=237.76, stdev=66.38 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 157], 10.00th=[ 171], 20.00th=[ 186], | 30.00th=[ 199], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 239], | 70.00th=[ 259], 80.00th=[ 288], 90.00th=[ 326], 95.00th=[ 363], | 99.00th=[ 439], 99.50th=[ 481], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 47, max= 223, per=25.38%, avg=135.28, stdev=40.64, samples=76 iops : min= 11, max= 55, avg=33.33, stdev=10.21, samples=76 lat (msec) : 50=0.12%, 100=0.43%, 250=66.64%, 500=32.58%, 750=0.23% cpu : usr=0.22%, sys=1.44%, ctx=4104, 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=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=180423: Sat Sep 5 18:02:07 2026 read: IOPS=32, BW=130KiB/s (133kB/s)(5060KiB/38933msec) slat (usec): min=47, max=84102, avg=16485.55, stdev=10532.46 clat (msec): min=47, max=456, avg=229.89, stdev=66.93 lat (msec): min=54, max=485, avg=246.39, stdev=70.22 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 150], 10.00th=[ 159], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 215], 60.00th=[ 234], | 70.00th=[ 253], 80.00th=[ 284], 90.00th=[ 330], 95.00th=[ 363], | 99.00th=[ 422], 99.50th=[ 435], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 47, max= 255, per=25.26%, avg=129.34, stdev=39.33, samples=77 iops : min= 11, max= 63, avg=31.82, stdev= 9.83, samples=77 write: IOPS=33, BW=133KiB/s (136kB/s)(5180KiB/38933msec); 0 zone resets slat (usec): min=32, max=18423, avg=222.91, stdev=999.88 clat (msec): min=70, max=529, avg=237.68, stdev=60.50 lat (msec): min=71, max=529, avg=237.91, stdev=60.48 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 159], 10.00th=[ 174], 20.00th=[ 188], | 30.00th=[ 201], 40.00th=[ 211], 50.00th=[ 226], 60.00th=[ 245], | 70.00th=[ 264], 80.00th=[ 288], 90.00th=[ 321], 95.00th=[ 355], | 99.00th=[ 397], 99.50th=[ 409], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 39, max= 208, per=24.86%, avg=132.48, stdev=40.31, samples=77 iops : min= 9, max= 52, avg=32.64, stdev=10.14, samples=77 lat (msec) : 50=0.04%, 100=0.23%, 250=65.82%, 500=33.83%, 750=0.08% cpu : usr=0.27%, sys=1.54%, ctx=4233, 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=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=512KiB/s (525kB/s), 127KiB/s-130KiB/s (130kB/s-133kB/s), io=19.6MiB (20.5MB), run=38826-39166msec WRITE: bw=533KiB/s (546kB/s), 133KiB/s-135KiB/s (136kB/s-139kB/s), io=20.4MiB (21.4MB), run=38826-39166msec 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=180434: Sat Sep 5 18:02:19 2026 read: IOPS=1, BW=53.7MiB/s (56.3MB/s)(40.0MiB/745msec) slat (nsec): min=36831k, max=36831k, avg=36831454.00, stdev= 0.00 clat (nsec): min=681525k, max=681525k, avg=681524844.00, stdev= 0.00 lat (nsec): min=718362k, max=718362k, avg=718361523.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.75%, ctx=5, 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=53.7MiB/s (56.3MB/s), 53.7MiB/s-53.7MiB/s (56.3MB/s-56.3MB/s), io=40.0MiB (41.9MB), run=745-745msec 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