== sanity test 398c: run fio to test AIO ================= 06:17:05 (1769080625) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.317912 s, 132 MB/s osc.lustre-OST0000-osc-ffff9f2747623000.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=182689: Thu Jan 22 06:17:26 2026 write: IOPS=161, BW=645KiB/s (660kB/s)(10.0MiB/15878msec); 0 zone resets slat (usec): min=22, max=12187, avg=178.21, stdev=529.79 clat (msec): min=16, max=221, avg=98.64, stdev=23.47 lat (msec): min=16, max=222, avg=98.82, stdev=23.49 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 81], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 97], 60.00th=[ 103], | 70.00th=[ 108], 80.00th=[ 115], 90.00th=[ 127], 95.00th=[ 138], | 99.00th=[ 178], 99.50th=[ 184], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 222] bw ( KiB/s): min= 432, max= 900, per=24.96%, avg=643.23, stdev=106.61, samples=31 iops : min= 108, max= 225, avg=160.55, stdev=26.72, samples=31 lat (msec) : 20=0.08%, 50=0.35%, 100=56.52%, 250=43.05% cpu : usr=0.30%, sys=1.57%, ctx=3025, 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=182690: Thu Jan 22 06:17:26 2026 write: IOPS=161, BW=644KiB/s (660kB/s)(10.0MiB/15890msec); 0 zone resets slat (usec): min=23, max=11587, avg=176.94, stdev=452.54 clat (msec): min=12, max=221, avg=98.61, stdev=23.65 lat (msec): min=14, max=221, avg=98.78, stdev=23.65 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 64], 10.00th=[ 70], 20.00th=[ 81], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 97], 60.00th=[ 103], | 70.00th=[ 109], 80.00th=[ 115], 90.00th=[ 126], 95.00th=[ 136], | 99.00th=[ 182], 99.50th=[ 203], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 392, max= 916, per=24.84%, avg=640.13, stdev=105.12, samples=31 iops : min= 98, max= 229, avg=159.77, stdev=26.34, samples=31 lat (msec) : 20=0.08%, 50=0.51%, 100=56.48%, 250=42.93% cpu : usr=0.30%, sys=1.61%, ctx=3244, 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=182691: Thu Jan 22 06:17:26 2026 write: IOPS=161, BW=645KiB/s (660kB/s)(10.0MiB/15877msec); 0 zone resets slat (usec): min=22, max=6791, avg=156.67, stdev=377.60 clat (msec): min=18, max=218, avg=98.57, stdev=23.04 lat (msec): min=18, max=218, avg=98.73, stdev=23.07 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 64], 10.00th=[ 70], 20.00th=[ 82], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 97], 60.00th=[ 103], | 70.00th=[ 109], 80.00th=[ 115], 90.00th=[ 126], 95.00th=[ 138], | 99.00th=[ 182], 99.50th=[ 203], 99.90th=[ 218], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 392, max= 892, per=24.89%, avg=641.42, stdev=106.36, samples=31 iops : min= 98, max= 223, avg=160.10, stdev=26.63, samples=31 lat (msec) : 20=0.04%, 100=56.48%, 250=43.48% cpu : usr=0.21%, sys=1.46%, ctx=2763, 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=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=182692: Thu Jan 22 06:17:26 2026 write: IOPS=161, BW=647KiB/s (663kB/s)(10.0MiB/15827msec); 0 zone resets slat (usec): min=20, max=10435, avg=151.51, stdev=417.53 clat (msec): min=10, max=219, avg=98.68, stdev=23.36 lat (msec): min=11, max=219, avg=98.83, stdev=23.35 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 83], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 97], 60.00th=[ 103], | 70.00th=[ 108], 80.00th=[ 115], 90.00th=[ 124], 95.00th=[ 136], | 99.00th=[ 184], 99.50th=[ 203], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 408, max= 1003, per=24.98%, avg=643.71, stdev=113.54, samples=31 iops : min= 102, max= 250, avg=160.65, stdev=28.37, samples=31 lat (msec) : 20=0.08%, 50=0.20%, 100=54.84%, 250=44.88% cpu : usr=0.20%, sys=1.31%, ctx=2794, 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=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=2578KiB/s (2640kB/s), 644KiB/s-647KiB/s (660kB/s-663kB/s), io=40.0MiB (41.9MB), run=15827-15890msec 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=182704: Thu Jan 22 06:17:46 2026 read: IOPS=83, BW=334KiB/s (342kB/s)(5048KiB/15107msec) slat (usec): min=1961, max=21302, avg=6630.83, stdev=2862.30 clat (msec): min=46, max=166, avg=89.17, stdev=18.10 lat (msec): min=51, max=174, avg=95.80, stdev=18.79 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 63], 10.00th=[ 68], 20.00th=[ 74], | 30.00th=[ 80], 40.00th=[ 84], 50.00th=[ 88], 60.00th=[ 92], | 70.00th=[ 97], 80.00th=[ 103], 90.00th=[ 112], 95.00th=[ 123], | 99.00th=[ 142], 99.50th=[ 155], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 203, max= 431, per=24.99%, avg=331.93, stdev=53.41, samples=29 iops : min= 50, max= 107, avg=82.48, stdev=13.50, samples=29 write: IOPS=85, BW=344KiB/s (352kB/s)(5192KiB/15107msec); 0 zone resets slat (usec): min=23, max=6753, avg=177.00, stdev=404.47 clat (msec): min=25, max=164, avg=90.83, stdev=17.35 lat (msec): min=26, max=164, avg=91.01, stdev=17.36 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 67], 10.00th=[ 71], 20.00th=[ 77], | 30.00th=[ 81], 40.00th=[ 85], 50.00th=[ 89], 60.00th=[ 93], | 70.00th=[ 99], 80.00th=[ 105], 90.00th=[ 115], 95.00th=[ 123], | 99.00th=[ 140], 99.50th=[ 155], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 239, max= 464, per=24.63%, avg=340.41, stdev=53.13, samples=29 iops : min= 59, max= 116, avg=84.62, stdev=13.35, samples=29 lat (msec) : 50=0.31%, 100=74.69%, 250=25.00% cpu : usr=0.26%, sys=2.76%, ctx=4734, 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=182705: Thu Jan 22 06:17:46 2026 read: IOPS=82, BW=329KiB/s (337kB/s)(4976KiB/15107msec) slat (usec): min=1883, max=32312, avg=6702.33, stdev=3025.42 clat (msec): min=40, max=172, avg=89.10, stdev=19.14 lat (msec): min=49, max=183, avg=95.81, stdev=19.73 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 63], 10.00th=[ 68], 20.00th=[ 73], | 30.00th=[ 79], 40.00th=[ 83], 50.00th=[ 87], 60.00th=[ 92], | 70.00th=[ 97], 80.00th=[ 103], 90.00th=[ 114], 95.00th=[ 125], | 99.00th=[ 148], 99.50th=[ 157], 99.90th=[ 171], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 223, max= 446, per=24.58%, avg=326.48, stdev=48.55, samples=29 iops : min= 55, max= 111, avg=81.14, stdev=12.27, samples=29 write: IOPS=87, BW=348KiB/s (357kB/s)(5264KiB/15107msec); 0 zone resets slat (usec): min=25, max=7069, avg=169.45, stdev=369.98 clat (msec): min=29, max=162, avg=91.43, stdev=18.84 lat (msec): min=31, max=162, avg=91.60, stdev=18.82 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 67], 10.00th=[ 71], 20.00th=[ 75], | 30.00th=[ 81], 40.00th=[ 85], 50.00th=[ 88], 60.00th=[ 93], | 70.00th=[ 99], 80.00th=[ 106], 90.00th=[ 117], 95.00th=[ 128], | 99.00th=[ 148], 99.50th=[ 157], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 246, max= 471, per=25.05%, avg=346.24, stdev=61.98, samples=29 iops : min= 61, max= 117, avg=86.07, stdev=15.52, samples=29 lat (msec) : 50=0.31%, 100=73.98%, 250=25.70% cpu : usr=0.36%, sys=2.55%, ctx=4757, 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=182706: Thu Jan 22 06:17:46 2026 read: IOPS=83, BW=334KiB/s (343kB/s)(4984KiB/14901msec) slat (usec): min=46, max=27781, avg=6584.99, stdev=3026.12 clat (msec): min=14, max=181, avg=87.44, stdev=18.71 lat (msec): min=14, max=188, avg=94.03, stdev=19.43 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 62], 10.00th=[ 66], 20.00th=[ 73], | 30.00th=[ 79], 40.00th=[ 83], 50.00th=[ 86], 60.00th=[ 90], | 70.00th=[ 94], 80.00th=[ 101], 90.00th=[ 111], 95.00th=[ 121], | 99.00th=[ 140], 99.50th=[ 157], 99.90th=[ 180], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 254, max= 480, per=25.11%, avg=333.48, stdev=57.86, samples=29 iops : min= 63, max= 120, avg=82.90, stdev=14.56, samples=29 write: IOPS=88, BW=353KiB/s (361kB/s)(5256KiB/14901msec); 0 zone resets slat (usec): min=24, max=5259, avg=162.63, stdev=352.59 clat (msec): min=19, max=180, avg=91.76, stdev=18.53 lat (msec): min=19, max=180, avg=91.93, stdev=18.53 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 67], 10.00th=[ 71], 20.00th=[ 77], | 30.00th=[ 81], 40.00th=[ 86], 50.00th=[ 90], 60.00th=[ 94], | 70.00th=[ 100], 80.00th=[ 106], 90.00th=[ 116], 95.00th=[ 126], | 99.00th=[ 146], 99.50th=[ 163], 99.90th=[ 176], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 254, max= 454, per=25.32%, avg=349.93, stdev=50.36, samples=29 iops : min= 63, max= 113, avg=87.00, stdev=12.66, samples=29 lat (msec) : 20=0.16%, 50=0.35%, 100=74.30%, 250=25.20% cpu : usr=0.30%, sys=2.74%, ctx=4532, 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=182707: Thu Jan 22 06:17:46 2026 read: IOPS=83, BW=335KiB/s (343kB/s)(5060KiB/15105msec) slat (usec): min=1869, max=87489, avg=6547.37, stdev=3639.08 clat (msec): min=44, max=166, avg=89.11, stdev=19.28 lat (msec): min=49, max=173, avg=95.66, stdev=19.89 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 64], 10.00th=[ 68], 20.00th=[ 73], | 30.00th=[ 79], 40.00th=[ 83], 50.00th=[ 87], 60.00th=[ 91], | 70.00th=[ 97], 80.00th=[ 104], 90.00th=[ 114], 95.00th=[ 124], | 99.00th=[ 153], 99.50th=[ 161], 99.90th=[ 165], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 210, max= 440, per=25.06%, avg=332.76, stdev=48.64, samples=29 iops : min= 52, max= 110, avg=82.69, stdev=12.27, samples=29 write: IOPS=85, BW=343KiB/s (351kB/s)(5180KiB/15105msec); 0 zone resets slat (usec): min=30, max=4134, avg=165.56, stdev=303.53 clat (msec): min=54, max=168, avg=91.29, stdev=17.92 lat (msec): min=54, max=168, avg=91.46, stdev=17.92 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 67], 10.00th=[ 71], 20.00th=[ 77], | 30.00th=[ 81], 40.00th=[ 86], 50.00th=[ 90], 60.00th=[ 94], | 70.00th=[ 99], 80.00th=[ 105], 90.00th=[ 115], 95.00th=[ 123], | 99.00th=[ 150], 99.50th=[ 157], 99.90th=[ 167], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 223, max= 447, per=24.62%, avg=340.28, stdev=56.89, samples=29 iops : min= 55, max= 111, avg=84.59, stdev=14.31, samples=29 lat (msec) : 50=0.16%, 100=74.57%, 250=25.27% cpu : usr=0.39%, sys=2.67%, ctx=4763, 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=1328KiB/s (1360kB/s), 329KiB/s-335KiB/s (337kB/s-343kB/s), io=19.6MiB (20.5MB), run=14901-15107msec WRITE: bw=1383KiB/s (1416kB/s), 343KiB/s-353KiB/s (351kB/s-361kB/s), io=20.4MiB (21.4MB), run=14901-15107msec 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=182713: Thu Jan 22 06:17:51 2026 read: IOPS=3, BW=150MiB/s (157MB/s)(40.0MiB/267msec) slat (nsec): min=21185k, max=21185k, avg=21185493.00, stdev= 0.00 clat (nsec): min=236540k, max=236540k, avg=236540244.00, stdev= 0.00 lat (nsec): min=257730k, max=257730k, avg=257730249.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 236], | 70.00th=[ 236], 80.00th=[ 236], 90.00th=[ 236], 95.00th=[ 236], | 99.00th=[ 236], 99.50th=[ 236], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=4.14%, ctx=11, 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=150MiB/s (157MB/s), 150MiB/s-150MiB/s (157MB/s-157MB/s), io=40.0MiB (41.9MB), run=267-267msec 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