== sanity test 398c: run fio to test AIO ================= 01:03:04 (1783141384) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.256935 s, 163 MB/s osc.lustre-OST0000-osc-ffff893ab5ed8000.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=145803: Sat Jul 4 01:05:07 2026 write: IOPS=21, BW=86.7KiB/s (88.8kB/s)(10.0MiB/118077msec); 0 zone resets slat (usec): min=37, max=8395, avg=256.94, stdev=487.09 clat (msec): min=64, max=3992, avg=736.63, stdev=529.98 lat (msec): min=64, max=3993, avg=736.89, stdev=529.96 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 313], 10.00th=[ 397], 20.00th=[ 468], | 30.00th=[ 514], 40.00th=[ 550], 50.00th=[ 575], 60.00th=[ 617], | 70.00th=[ 676], 80.00th=[ 768], 90.00th=[ 1301], 95.00th=[ 2072], | 99.00th=[ 2970], 99.50th=[ 3373], 99.90th=[ 3775], 99.95th=[ 3977], | 99.99th=[ 3977] bw ( KiB/s): min= 7, max= 255, per=25.81%, avg=89.31, stdev=49.09, samples=226 iops : min= 1, max= 63, avg=21.96, stdev=12.29, samples=226 lat (msec) : 100=0.04%, 250=1.25%, 500=25.51%, 750=52.11%, 1000=7.66% lat (msec) : 2000=7.54%, >=2000=5.90% cpu : usr=0.05%, sys=0.37%, ctx=2531, 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=145804: Sat Jul 4 01:05:07 2026 write: IOPS=21, BW=86.8KiB/s (88.9kB/s)(10.0MiB/118007msec); 0 zone resets slat (usec): min=36, max=14676, avg=274.85, stdev=589.76 clat (msec): min=63, max=3994, avg=736.24, stdev=529.34 lat (msec): min=63, max=3994, avg=736.52, stdev=529.33 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 317], 10.00th=[ 405], 20.00th=[ 468], | 30.00th=[ 510], 40.00th=[ 542], 50.00th=[ 584], 60.00th=[ 617], | 70.00th=[ 667], 80.00th=[ 760], 90.00th=[ 1334], 95.00th=[ 2005], | 99.00th=[ 2970], 99.50th=[ 3574], 99.90th=[ 3876], 99.95th=[ 3876], | 99.99th=[ 4010] bw ( KiB/s): min= 7, max= 254, per=26.05%, avg=90.13, stdev=46.68, samples=224 iops : min= 1, max= 63, avg=22.17, stdev=11.69, samples=224 lat (msec) : 100=0.04%, 250=1.29%, 500=25.62%, 750=52.50%, 1000=7.62% lat (msec) : 2000=7.81%, >=2000=5.12% cpu : usr=0.05%, sys=0.36%, ctx=2837, 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=145805: Sat Jul 4 01:05:07 2026 write: IOPS=21, BW=86.6KiB/s (88.7kB/s)(10.0MiB/118190msec); 0 zone resets slat (usec): min=37, max=8172, avg=250.84, stdev=489.07 clat (msec): min=110, max=3994, avg=737.60, stdev=528.23 lat (msec): min=110, max=3994, avg=737.85, stdev=528.24 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 317], 10.00th=[ 405], 20.00th=[ 468], | 30.00th=[ 510], 40.00th=[ 550], 50.00th=[ 575], 60.00th=[ 617], | 70.00th=[ 676], 80.00th=[ 768], 90.00th=[ 1318], 95.00th=[ 2056], | 99.00th=[ 2869], 99.50th=[ 3239], 99.90th=[ 3876], 99.95th=[ 4010], | 99.99th=[ 4010] bw ( KiB/s): min= 7, max= 270, per=25.91%, avg=89.64, stdev=46.27, samples=225 iops : min= 1, max= 67, avg=22.03, stdev=11.61, samples=225 lat (msec) : 250=1.02%, 500=26.45%, 750=51.52%, 1000=7.89%, 2000=7.73% lat (msec) : >=2000=5.39% cpu : usr=0.05%, sys=0.34%, ctx=2772, 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=145806: Sat Jul 4 01:05:07 2026 write: IOPS=21, BW=86.6KiB/s (88.7kB/s)(10.0MiB/118186msec); 0 zone resets slat (usec): min=36, max=67065, avg=276.30, stdev=1399.45 clat (msec): min=63, max=3993, avg=737.22, stdev=531.15 lat (msec): min=64, max=3993, avg=737.49, stdev=531.25 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 317], 10.00th=[ 401], 20.00th=[ 464], | 30.00th=[ 510], 40.00th=[ 550], 50.00th=[ 584], 60.00th=[ 625], | 70.00th=[ 667], 80.00th=[ 768], 90.00th=[ 1318], 95.00th=[ 2039], | 99.00th=[ 2869], 99.50th=[ 3473], 99.90th=[ 3910], 99.95th=[ 3910], | 99.99th=[ 4010] bw ( KiB/s): min= 7, max= 247, per=26.05%, avg=90.12, stdev=46.18, samples=224 iops : min= 1, max= 61, avg=22.16, stdev=11.56, samples=224 lat (msec) : 100=0.04%, 250=1.21%, 500=25.51%, 750=51.99%, 1000=7.97% lat (msec) : 2000=7.85%, >=2000=5.43% cpu : usr=0.04%, sys=0.37%, ctx=2727, 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=347KiB/s (355kB/s), 86.6KiB/s-86.8KiB/s (88.7kB/s-88.9kB/s), io=40.0MiB (41.9MB), run=118007-118190msec 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=145834: Sat Jul 4 01:07:13 2026 read: IOPS=10, BW=43.7KiB/s (44.8kB/s)(5048KiB/115438msec) slat (msec): min=2, max=192, avg=15.92, stdev=12.84 clat (msec): min=16, max=1701, avg=445.74, stdev=190.45 lat (msec): min=23, max=1713, avg=461.67, stdev=195.79 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 243], 10.00th=[ 279], 20.00th=[ 317], | 30.00th=[ 342], 40.00th=[ 372], 50.00th=[ 401], 60.00th=[ 435], | 70.00th=[ 477], 80.00th=[ 542], 90.00th=[ 676], 95.00th=[ 802], | 99.00th=[ 1234], 99.50th=[ 1334], 99.90th=[ 1502], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7, max= 96, per=25.18%, avg=43.56, stdev=22.46, samples=227 iops : min= 1, max= 24, avg=10.41, stdev= 5.69, samples=227 write: IOPS=11, BW=44.0KiB/s (46.1kB/s)(5192KiB/115438msec); 0 zone resets slat (usec): min=37, max=26174, avg=378.21, stdev=1321.43 clat (msec): min=265, max=2784, avg=964.89, stdev=364.60 lat (msec): min=266, max=2784, avg=965.27, stdev=364.75 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 693], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 852], 60.00th=[ 944], | 70.00th=[ 1062], 80.00th=[ 1217], 90.00th=[ 1452], 95.00th=[ 1620], | 99.00th=[ 2366], 99.50th=[ 2433], 99.90th=[ 2567], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 7, max= 104, per=25.07%, avg=45.12, stdev=21.46, samples=225 iops : min= 1, max= 26, avg=10.80, stdev= 5.43, samples=225 lat (msec) : 20=0.04%, 50=0.04%, 100=0.16%, 250=2.73%, 500=35.35% lat (msec) : 750=22.85%, 1000=20.12%, 2000=17.70%, >=2000=1.02% cpu : usr=0.09%, sys=0.66%, ctx=4381, 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=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=145835: Sat Jul 4 01:07:13 2026 read: IOPS=10, BW=43.1KiB/s (44.2kB/s)(4976KiB/115390msec) slat (usec): min=77, max=198691, avg=15636.04, stdev=11875.97 clat (msec): min=10, max=1530, avg=453.51, stdev=186.46 lat (msec): min=16, max=1558, avg=469.16, stdev=190.26 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 253], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 409], 60.00th=[ 447], | 70.00th=[ 489], 80.00th=[ 558], 90.00th=[ 693], 95.00th=[ 793], | 99.00th=[ 1200], 99.50th=[ 1250], 99.90th=[ 1519], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7, max= 112, per=25.11%, avg=43.44, stdev=22.29, samples=224 iops : min= 1, max= 28, avg=10.38, stdev= 5.64, samples=224 write: IOPS=11, BW=45.6KiB/s (46.7kB/s)(5264KiB/115390msec); 0 zone resets slat (usec): min=48, max=19157, avg=321.07, stdev=880.60 clat (msec): min=312, max=2785, avg=957.56, stdev=359.46 lat (msec): min=312, max=2785, avg=957.88, stdev=359.49 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 550], 10.00th=[ 625], 20.00th=[ 693], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 860], 60.00th=[ 936], | 70.00th=[ 1036], 80.00th=[ 1183], 90.00th=[ 1435], 95.00th=[ 1586], | 99.00th=[ 2299], 99.50th=[ 2534], 99.90th=[ 2601], 99.95th=[ 2802], | 99.99th=[ 2802] bw ( KiB/s): min= 7, max= 103, per=25.44%, avg=45.80, stdev=21.39, samples=225 iops : min= 1, max= 25, avg=10.96, stdev= 5.39, samples=225 lat (msec) : 20=0.04%, 50=0.04%, 100=0.08%, 250=1.99%, 500=34.22% lat (msec) : 750=23.87%, 1000=21.29%, 2000=17.15%, >=2000=1.33% cpu : usr=0.08%, sys=0.65%, ctx=4284, 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=145836: Sat Jul 4 01:07:13 2026 read: IOPS=10, BW=43.2KiB/s (44.2kB/s)(4984KiB/115432msec) slat (msec): min=2, max=126, avg=15.86, stdev=11.14 clat (msec): min=23, max=1714, avg=451.55, stdev=201.58 lat (msec): min=33, max=1723, avg=467.42, stdev=205.17 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 228], 10.00th=[ 266], 20.00th=[ 313], | 30.00th=[ 342], 40.00th=[ 376], 50.00th=[ 409], 60.00th=[ 447], | 70.00th=[ 498], 80.00th=[ 550], 90.00th=[ 701], 95.00th=[ 835], | 99.00th=[ 1200], 99.50th=[ 1334], 99.90th=[ 1703], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 111, per=25.19%, avg=43.58, stdev=21.76, samples=224 iops : min= 1, max= 27, avg=10.41, stdev= 5.48, samples=224 write: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5256KiB/115432msec); 0 zone resets slat (usec): min=43, max=17356, avg=297.36, stdev=775.35 clat (msec): min=163, max=2669, avg=954.07, stdev=371.85 lat (msec): min=164, max=2669, avg=954.37, stdev=371.89 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 535], 10.00th=[ 600], 20.00th=[ 684], | 30.00th=[ 743], 40.00th=[ 793], 50.00th=[ 860], 60.00th=[ 936], | 70.00th=[ 1045], 80.00th=[ 1200], 90.00th=[ 1418], 95.00th=[ 1620], | 99.00th=[ 2467], 99.50th=[ 2500], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 7, max= 119, per=25.35%, avg=45.64, stdev=22.49, samples=225 iops : min= 1, max= 29, avg=10.92, stdev= 5.70, samples=225 lat (msec) : 50=0.35%, 100=0.23%, 250=3.36%, 500=32.30%, 750=25.08% lat (msec) : 1000=20.35%, 2000=17.11%, >=2000=1.21% cpu : usr=0.11%, sys=0.65%, ctx=4269, 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=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=145837: Sat Jul 4 01:07:13 2026 read: IOPS=11, BW=44.0KiB/s (45.1kB/s)(5060KiB/114993msec) slat (msec): min=2, max=123, avg=15.74, stdev=10.66 clat (msec): min=19, max=1721, avg=446.21, stdev=199.41 lat (msec): min=36, max=1724, avg=461.96, stdev=202.97 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 249], 10.00th=[ 275], 20.00th=[ 309], | 30.00th=[ 334], 40.00th=[ 368], 50.00th=[ 401], 60.00th=[ 430], | 70.00th=[ 477], 80.00th=[ 542], 90.00th=[ 701], 95.00th=[ 810], | 99.00th=[ 1217], 99.50th=[ 1401], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 7, max= 136, per=25.71%, avg=44.48, stdev=23.12, samples=223 iops : min= 1, max= 34, avg=10.64, stdev= 5.84, samples=223 write: IOPS=11, BW=45.0KiB/s (46.1kB/s)(5180KiB/114993msec); 0 zone resets slat (usec): min=48, max=63844, avg=424.53, stdev=2026.94 clat (msec): min=329, max=2744, avg=962.54, stdev=365.08 lat (msec): min=329, max=2744, avg=962.96, stdev=365.04 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 550], 10.00th=[ 625], 20.00th=[ 684], | 30.00th=[ 751], 40.00th=[ 802], 50.00th=[ 869], 60.00th=[ 944], | 70.00th=[ 1045], 80.00th=[ 1217], 90.00th=[ 1418], 95.00th=[ 1620], | 99.00th=[ 2400], 99.50th=[ 2500], 99.90th=[ 2601], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7, max= 104, per=25.08%, avg=45.14, stdev=21.38, samples=224 iops : min= 1, max= 26, avg=10.80, stdev= 5.42, samples=224 lat (msec) : 20=0.04%, 50=0.12%, 100=0.23%, 250=2.38%, 500=35.51% lat (msec) : 750=22.70%, 1000=20.51%, 2000=17.19%, >=2000=1.33% cpu : usr=0.07%, sys=0.68%, ctx=4302, 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=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=174KiB/s (178kB/s), 43.1KiB/s-44.0KiB/s (44.2kB/s-45.1kB/s), io=19.6MiB (20.5MB), run=114993-115438msec WRITE: bw=181KiB/s (185kB/s), 44.0KiB/s-45.6KiB/s (46.1kB/s-46.7kB/s), io=20.4MiB (21.4MB), run=114993-115438msec 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=145857: Sat Jul 4 01:07:23 2026 read: IOPS=1, BW=54.6MiB/s (57.3MB/s)(40.0MiB/732msec) slat (nsec): min=45084k, max=45084k, avg=45084212.00, stdev= 0.00 clat (nsec): min=639110k, max=639110k, avg=639109621.00, stdev= 0.00 lat (nsec): min=684199k, max=684199k, avg=684198992.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] lat (msec) : 750=100.00% cpu : usr=0.27%, sys=2.60%, ctx=38, 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=54.6MiB/s (57.3MB/s), 54.6MiB/s-54.6MiB/s (57.3MB/s-57.3MB/s), io=40.0MiB (41.9MB), run=732-732msec 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