== sanity test 398c: run fio to test AIO ================= 13:41:41 (1783446101) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.331248 s, 127 MB/s osc.lustre-OST0000-osc-ffff97b585472000.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=146424: Tue Jul 7 13:44:01 2026 write: IOPS=19, BW=77.8KiB/s (79.6kB/s)(10.0MiB/131652msec); 0 zone resets slat (usec): min=46, max=10416, avg=393.76, stdev=831.50 clat (msec): min=294, max=1377, avg=821.47, stdev=173.66 lat (msec): min=295, max=1378, avg=821.87, stdev=173.68 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 531], 10.00th=[ 600], 20.00th=[ 676], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 827], 60.00th=[ 860], | 70.00th=[ 911], 80.00th=[ 961], 90.00th=[ 1045], 95.00th=[ 1099], | 99.00th=[ 1217], 99.50th=[ 1250], 99.90th=[ 1334], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 7, max= 167, per=24.95%, avg=77.58, stdev=28.84, samples=260 iops : min= 1, max= 41, avg=18.92, stdev= 7.24, samples=260 lat (msec) : 500=4.14%, 750=28.01%, 1000=52.97%, 2000=14.88% cpu : usr=0.05%, sys=0.39%, ctx=2537, 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=146425: Tue Jul 7 13:44:01 2026 write: IOPS=19, BW=77.9KiB/s (79.8kB/s)(10.0MiB/131455msec); 0 zone resets slat (usec): min=51, max=21575, avg=417.46, stdev=1065.01 clat (msec): min=70, max=1413, avg=820.74, stdev=185.96 lat (msec): min=71, max=1414, avg=821.16, stdev=185.98 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 493], 10.00th=[ 600], 20.00th=[ 667], | 30.00th=[ 735], 40.00th=[ 776], 50.00th=[ 827], 60.00th=[ 869], | 70.00th=[ 919], 80.00th=[ 978], 90.00th=[ 1045], 95.00th=[ 1116], | 99.00th=[ 1250], 99.50th=[ 1301], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 264, per=24.94%, avg=77.57, stdev=29.88, samples=260 iops : min= 1, max= 66, avg=18.93, stdev= 7.49, samples=260 lat (msec) : 100=0.08%, 250=0.23%, 500=4.77%, 750=28.87%, 1000=49.61% lat (msec) : 2000=16.45% cpu : usr=0.06%, sys=0.41%, ctx=2797, 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=146426: Tue Jul 7 13:44:01 2026 write: IOPS=19, BW=77.8KiB/s (79.6kB/s)(10.0MiB/131654msec); 0 zone resets slat (usec): min=41, max=18454, avg=415.93, stdev=978.35 clat (msec): min=290, max=1373, avg=821.34, stdev=174.76 lat (msec): min=291, max=1373, avg=821.75, stdev=174.74 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 523], 10.00th=[ 600], 20.00th=[ 684], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 827], 60.00th=[ 869], | 70.00th=[ 911], 80.00th=[ 969], 90.00th=[ 1036], 95.00th=[ 1099], | 99.00th=[ 1234], 99.50th=[ 1318], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 256, per=25.06%, avg=77.93, stdev=32.13, samples=259 iops : min= 1, max= 64, avg=19.01, stdev= 8.05, samples=259 lat (msec) : 500=3.48%, 750=29.06%, 1000=52.77%, 2000=14.69% cpu : usr=0.06%, sys=0.39%, ctx=2567, 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=146427: Tue Jul 7 13:44:01 2026 write: IOPS=19, BW=77.8KiB/s (79.6kB/s)(10.0MiB/131650msec); 0 zone resets slat (usec): min=42, max=10718, avg=402.66, stdev=840.73 clat (msec): min=178, max=1397, avg=821.47, stdev=178.86 lat (msec): min=178, max=1397, avg=821.88, stdev=178.85 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 506], 10.00th=[ 600], 20.00th=[ 676], | 30.00th=[ 743], 40.00th=[ 785], 50.00th=[ 827], 60.00th=[ 869], | 70.00th=[ 911], 80.00th=[ 969], 90.00th=[ 1045], 95.00th=[ 1099], | 99.00th=[ 1250], 99.50th=[ 1301], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 223, per=24.85%, avg=77.28, stdev=29.62, samples=261 iops : min= 1, max= 55, avg=18.85, stdev= 7.41, samples=261 lat (msec) : 250=0.04%, 500=4.73%, 750=27.54%, 1000=52.97%, 2000=14.73% cpu : usr=0.05%, sys=0.39%, ctx=2505, 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=311KiB/s (319kB/s), 77.8KiB/s-77.9KiB/s (79.6kB/s-79.8kB/s), io=40.0MiB (41.9MB), run=131455-131654msec 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=146455: Tue Jul 7 13:45:27 2026 read: IOPS=15, BW=62.9KiB/s (64.4kB/s)(5048KiB/80221msec) slat (usec): min=2830, max=37011, avg=10882.12, stdev=4913.56 clat (msec): min=5, max=749, avg=315.92, stdev=74.51 lat (msec): min=10, max=765, avg=326.82, stdev=75.34 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 211], 10.00th=[ 234], 20.00th=[ 262], | 30.00th=[ 279], 40.00th=[ 296], 50.00th=[ 313], 60.00th=[ 330], | 70.00th=[ 347], 80.00th=[ 372], 90.00th=[ 409], 95.00th=[ 439], | 99.00th=[ 535], 99.50th=[ 550], 99.90th=[ 617], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 128, per=25.03%, avg=62.33, stdev=25.66, samples=159 iops : min= 1, max= 32, avg=15.14, stdev= 6.42, samples=159 write: IOPS=16, BW=64.7KiB/s (66.3kB/s)(5192KiB/80221msec); 0 zone resets slat (usec): min=55, max=25075, avg=492.67, stdev=1127.33 clat (msec): min=196, max=1743, avg=668.62, stdev=184.47 lat (msec): min=196, max=1743, avg=669.12, stdev=184.45 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 401], 10.00th=[ 456], 20.00th=[ 518], | 30.00th=[ 558], 40.00th=[ 617], 50.00th=[ 659], 60.00th=[ 701], | 70.00th=[ 743], 80.00th=[ 802], 90.00th=[ 894], 95.00th=[ 953], | 99.00th=[ 1368], 99.50th=[ 1452], 99.90th=[ 1687], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 8, max= 128, per=24.63%, avg=64.05, stdev=19.73, samples=159 iops : min= 2, max= 32, avg=15.57, stdev= 4.93, samples=159 lat (msec) : 10=0.04%, 20=0.04%, 50=0.08%, 100=0.31%, 250=6.99% lat (msec) : 500=49.77%, 750=28.40%, 1000=12.77%, 2000=1.60% cpu : usr=0.13%, sys=1.01%, ctx=5115, 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=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=146456: Tue Jul 7 13:45:27 2026 read: IOPS=15, BW=61.0KiB/s (63.4kB/s)(4976KiB/80307msec) slat (usec): min=2535, max=35875, avg=10864.16, stdev=4819.11 clat (msec): min=9, max=666, avg=315.77, stdev=76.51 lat (msec): min=15, max=681, avg=326.64, stdev=77.09 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 205], 10.00th=[ 234], 20.00th=[ 264], | 30.00th=[ 279], 40.00th=[ 300], 50.00th=[ 313], 60.00th=[ 330], | 70.00th=[ 347], 80.00th=[ 372], 90.00th=[ 409], 95.00th=[ 447], | 99.00th=[ 493], 99.50th=[ 523], 99.90th=[ 634], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 15, max= 135, per=24.41%, avg=60.79, stdev=26.47, samples=159 iops : min= 3, max= 33, avg=14.75, stdev= 6.64, samples=159 write: IOPS=16, BW=65.5KiB/s (67.1kB/s)(5264KiB/80307msec); 0 zone resets slat (usec): min=55, max=12519, avg=496.14, stdev=1029.14 clat (msec): min=51, max=1705, avg=665.56, stdev=187.44 lat (msec): min=51, max=1705, avg=666.05, stdev=187.45 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 388], 10.00th=[ 443], 20.00th=[ 518], | 30.00th=[ 575], 40.00th=[ 617], 50.00th=[ 651], 60.00th=[ 701], | 70.00th=[ 743], 80.00th=[ 802], 90.00th=[ 894], 95.00th=[ 969], | 99.00th=[ 1200], 99.50th=[ 1452], 99.90th=[ 1670], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 15, max= 160, per=24.92%, avg=64.79, stdev=21.34, samples=159 iops : min= 3, max= 40, avg=15.75, stdev= 5.36, samples=159 lat (msec) : 10=0.04%, 20=0.16%, 50=0.16%, 100=0.47%, 250=6.76% lat (msec) : 500=49.10%, 750=28.52%, 1000=12.85%, 2000=1.95% cpu : usr=0.14%, sys=0.98%, ctx=5377, majf=0, minf=15 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=146457: Tue Jul 7 13:45:27 2026 read: IOPS=15, BW=62.2KiB/s (63.7kB/s)(4984KiB/80098msec) slat (usec): min=2536, max=41678, avg=11001.99, stdev=5089.38 clat (msec): min=33, max=756, avg=318.26, stdev=77.33 lat (msec): min=51, max=769, avg=329.27, stdev=78.02 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 209], 10.00th=[ 232], 20.00th=[ 262], | 30.00th=[ 279], 40.00th=[ 296], 50.00th=[ 313], 60.00th=[ 330], | 70.00th=[ 351], 80.00th=[ 376], 90.00th=[ 414], 95.00th=[ 447], | 99.00th=[ 518], 99.50th=[ 584], 99.90th=[ 751], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 15, max= 160, per=24.85%, avg=61.88, stdev=26.25, samples=159 iops : min= 3, max= 40, avg=15.03, stdev= 6.60, samples=159 write: IOPS=16, BW=65.6KiB/s (67.2kB/s)(5256KiB/80098msec); 0 zone resets slat (usec): min=47, max=10815, avg=436.23, stdev=816.91 clat (msec): min=90, max=1727, avg=661.08, stdev=180.36 lat (msec): min=90, max=1727, avg=661.52, stdev=180.37 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 393], 10.00th=[ 447], 20.00th=[ 514], | 30.00th=[ 558], 40.00th=[ 609], 50.00th=[ 642], 60.00th=[ 693], | 70.00th=[ 743], 80.00th=[ 793], 90.00th=[ 885], 95.00th=[ 944], | 99.00th=[ 1167], 99.50th=[ 1284], 99.90th=[ 1636], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8, max= 144, per=24.94%, avg=64.85, stdev=21.67, samples=159 iops : min= 2, max= 36, avg=15.77, stdev= 5.42, samples=159 lat (msec) : 50=0.16%, 100=0.39%, 250=7.19%, 500=48.44%, 750=29.38% lat (msec) : 1000=12.81%, 2000=1.64% cpu : usr=0.12%, sys=0.99%, ctx=4963, 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=146458: Tue Jul 7 13:45:27 2026 read: IOPS=15, BW=63.6KiB/s (65.1kB/s)(5060KiB/79542msec) slat (usec): min=60, max=35947, avg=10920.02, stdev=4947.23 clat (msec): min=12, max=783, avg=317.77, stdev=76.78 lat (msec): min=17, max=791, avg=328.71, stdev=77.54 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 209], 10.00th=[ 232], 20.00th=[ 259], | 30.00th=[ 279], 40.00th=[ 296], 50.00th=[ 313], 60.00th=[ 330], | 70.00th=[ 347], 80.00th=[ 372], 90.00th=[ 409], 95.00th=[ 443], | 99.00th=[ 567], 99.50th=[ 625], 99.90th=[ 709], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 15, max= 134, per=25.37%, avg=63.18, stdev=24.79, samples=158 iops : min= 3, max= 33, avg=15.35, stdev= 6.24, samples=158 write: IOPS=16, BW=65.1KiB/s (66.7kB/s)(5180KiB/79542msec); 0 zone resets slat (usec): min=60, max=11144, avg=500.72, stdev=982.50 clat (msec): min=76, max=1728, avg=660.41, stdev=187.86 lat (msec): min=76, max=1728, avg=660.91, stdev=187.85 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 384], 10.00th=[ 451], 20.00th=[ 510], | 30.00th=[ 558], 40.00th=[ 609], 50.00th=[ 642], 60.00th=[ 684], | 70.00th=[ 735], 80.00th=[ 810], 90.00th=[ 902], 95.00th=[ 969], | 99.00th=[ 1217], 99.50th=[ 1418], 99.90th=[ 1720], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 136, per=24.75%, avg=64.34, stdev=22.67, samples=158 iops : min= 1, max= 34, avg=15.65, stdev= 5.68, samples=158 lat (msec) : 20=0.04%, 50=0.08%, 100=0.27%, 250=7.30%, 500=49.80% lat (msec) : 750=28.24%, 1000=12.27%, 2000=1.99% cpu : usr=0.11%, sys=1.05%, ctx=5253, 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=250KiB/s (256kB/s), 61.0KiB/s-63.6KiB/s (63.4kB/s-65.1kB/s), io=19.6MiB (20.5MB), run=79542-80307msec WRITE: bw=260KiB/s (266kB/s), 64.7KiB/s-65.6KiB/s (66.3kB/s-67.2kB/s), io=20.4MiB (21.4MB), run=79542-80307msec 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=146473: Tue Jul 7 13:45:34 2026 read: IOPS=3, BW=133MiB/s (139MB/s)(40.0MiB/301msec) slat (nsec): min=17428k, max=17428k, avg=17428422.00, stdev= 0.00 clat (nsec): min=272022k, max=272022k, avg=272021786.00, stdev= 0.00 lat (nsec): min=289455k, max=289455k, avg=289454938.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.67%, ctx=32, 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=133MiB/s (139MB/s), 133MiB/s-133MiB/s (139MB/s-139MB/s), io=40.0MiB (41.9MB), run=301-301msec 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