== sanity test 398c: run fio to test AIO ================= 22:54:37 (1775876077) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.197433 s, 212 MB/s osc.lustre-OST0000-osc-ffff8a71725d5000.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=183234: Fri Apr 10 22:54:53 2026 write: IOPS=215, BW=864KiB/s (885kB/s)(10.0MiB/11853msec); 0 zone resets slat (usec): min=36, max=5951, avg=198.69, stdev=248.70 clat (msec): min=9, max=141, avg=73.78, stdev=16.36 lat (msec): min=10, max=141, avg=73.98, stdev=16.38 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 51], 10.00th=[ 55], 20.00th=[ 61], | 30.00th=[ 65], 40.00th=[ 68], 50.00th=[ 71], 60.00th=[ 75], | 70.00th=[ 81], 80.00th=[ 88], 90.00th=[ 96], 95.00th=[ 104], | 99.00th=[ 127], 99.50th=[ 129], 99.90th=[ 136], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 608, max= 1096, per=25.18%, avg=863.00, stdev=110.06, samples=23 iops : min= 152, max= 274, avg=215.61, stdev=27.49, samples=23 lat (msec) : 10=0.04%, 20=0.08%, 50=3.16%, 100=90.20%, 250=6.52% cpu : usr=0.26%, sys=3.00%, ctx=2737, 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=183235: Fri Apr 10 22:54:53 2026 write: IOPS=214, BW=857KiB/s (878kB/s)(10.0MiB/11947msec); 0 zone resets slat (usec): min=37, max=4256, avg=195.22, stdev=228.67 clat (msec): min=42, max=135, avg=73.97, stdev=16.11 lat (msec): min=42, max=135, avg=74.16, stdev=16.11 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 52], 10.00th=[ 56], 20.00th=[ 61], | 30.00th=[ 65], 40.00th=[ 68], 50.00th=[ 71], 60.00th=[ 77], | 70.00th=[ 83], 80.00th=[ 88], 90.00th=[ 95], 95.00th=[ 104], | 99.00th=[ 125], 99.50th=[ 127], 99.90th=[ 131], 99.95th=[ 131], | 99.99th=[ 136] bw ( KiB/s): min= 640, max= 1024, per=24.93%, avg=854.57, stdev=106.10, samples=23 iops : min= 160, max= 256, avg=213.52, stdev=26.53, samples=23 lat (msec) : 50=2.89%, 100=89.92%, 250=7.19% cpu : usr=0.35%, sys=2.95%, ctx=2719, 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=183236: Fri Apr 10 22:54:53 2026 write: IOPS=214, BW=858KiB/s (878kB/s)(10.0MiB/11940msec); 0 zone resets slat (usec): min=36, max=30857, avg=216.86, stdev=652.75 clat (msec): min=13, max=153, avg=74.00, stdev=16.64 lat (msec): min=19, max=153, avg=74.21, stdev=16.61 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 51], 10.00th=[ 55], 20.00th=[ 61], | 30.00th=[ 65], 40.00th=[ 68], 50.00th=[ 71], 60.00th=[ 77], | 70.00th=[ 82], 80.00th=[ 89], 90.00th=[ 95], 95.00th=[ 104], | 99.00th=[ 125], 99.50th=[ 129], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 155] bw ( KiB/s): min= 624, max= 1032, per=24.96%, avg=855.78, stdev=106.06, samples=23 iops : min= 156, max= 258, avg=213.83, stdev=26.52, samples=23 lat (msec) : 20=0.20%, 50=3.59%, 100=89.22%, 250=6.99% cpu : usr=0.34%, sys=3.05%, ctx=2817, 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=183237: Fri Apr 10 22:54:53 2026 write: IOPS=214, BW=857KiB/s (878kB/s)(10.0MiB/11947msec); 0 zone resets slat (usec): min=36, max=4335, avg=219.39, stdev=271.34 clat (msec): min=12, max=130, avg=73.90, stdev=16.17 lat (msec): min=12, max=130, avg=74.12, stdev=16.18 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 51], 10.00th=[ 55], 20.00th=[ 61], | 30.00th=[ 65], 40.00th=[ 68], 50.00th=[ 72], 60.00th=[ 77], | 70.00th=[ 82], 80.00th=[ 88], 90.00th=[ 96], 95.00th=[ 104], | 99.00th=[ 122], 99.50th=[ 125], 99.90th=[ 131], 99.95th=[ 131], | 99.99th=[ 131] bw ( KiB/s): min= 632, max= 1040, per=24.95%, avg=855.22, stdev=104.73, samples=23 iops : min= 158, max= 260, avg=213.70, stdev=26.18, samples=23 lat (msec) : 20=0.04%, 50=3.95%, 100=88.71%, 250=7.30% cpu : usr=0.39%, sys=2.97%, ctx=2813, 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 Run status group 0 (all jobs): WRITE: bw=3428KiB/s (3511kB/s), 857KiB/s-864KiB/s (878kB/s-885kB/s), io=40.0MiB (41.9MB), run=11853-11947msec 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=183248: Fri Apr 10 22:55:07 2026 read: IOPS=120, BW=483KiB/s (495kB/s)(5048KiB/10453msec) slat (usec): min=1541, max=15382, avg=4364.59, stdev=1937.71 clat (msec): min=27, max=109, avg=61.68, stdev=13.53 lat (msec): min=32, max=119, avg=66.05, stdev=14.01 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 44], 10.00th=[ 47], 20.00th=[ 51], | 30.00th=[ 54], 40.00th=[ 57], 50.00th=[ 60], 60.00th=[ 63], | 70.00th=[ 68], 80.00th=[ 73], 90.00th=[ 81], 95.00th=[ 88], | 99.00th=[ 99], 99.50th=[ 104], 99.90th=[ 110], 99.95th=[ 110], | 99.99th=[ 110] bw ( KiB/s): min= 341, max= 606, per=25.13%, avg=482.15, stdev=67.69, samples=20 iops : min= 85, max= 151, avg=120.35, stdev=16.94, samples=20 write: IOPS=124, BW=497KiB/s (509kB/s)(5192KiB/10453msec); 0 zone resets slat (usec): min=52, max=3716, avg=196.67, stdev=207.42 clat (msec): min=26, max=116, avg=63.60, stdev=13.62 lat (msec): min=27, max=116, avg=63.80, stdev=13.62 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 47], 10.00th=[ 50], 20.00th=[ 53], | 30.00th=[ 55], 40.00th=[ 58], 50.00th=[ 62], 60.00th=[ 65], | 70.00th=[ 69], 80.00th=[ 74], 90.00th=[ 84], 95.00th=[ 92], | 99.00th=[ 102], 99.50th=[ 108], 99.90th=[ 114], 99.95th=[ 116], | 99.99th=[ 116] bw ( KiB/s): min= 373, max= 614, per=24.71%, avg=493.80, stdev=73.95, samples=20 iops : min= 93, max= 153, avg=123.25, stdev=18.46, samples=20 lat (msec) : 50=16.80%, 100=82.15%, 250=1.05% cpu : usr=0.54%, sys=4.04%, ctx=4610, 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=183249: Fri Apr 10 22:55:07 2026 read: IOPS=119, BW=479KiB/s (491kB/s)(4976KiB/10380msec) slat (usec): min=1539, max=17409, avg=4394.12, stdev=1862.79 clat (msec): min=14, max=117, avg=61.34, stdev=14.13 lat (msec): min=20, max=125, avg=65.74, stdev=14.62 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 43], 10.00th=[ 47], 20.00th=[ 51], | 30.00th=[ 54], 40.00th=[ 56], 50.00th=[ 59], 60.00th=[ 63], | 70.00th=[ 66], 80.00th=[ 71], 90.00th=[ 82], 95.00th=[ 90], | 99.00th=[ 105], 99.50th=[ 111], 99.90th=[ 116], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 333, max= 589, per=24.91%, avg=478.05, stdev=69.97, samples=20 iops : min= 83, max= 147, avg=119.35, stdev=17.43, samples=20 write: IOPS=126, BW=507KiB/s (519kB/s)(5264KiB/10380msec); 0 zone resets slat (usec): min=58, max=4160, avg=202.47, stdev=228.94 clat (msec): min=14, max=134, avg=63.28, stdev=14.01 lat (msec): min=14, max=134, avg=63.48, stdev=14.03 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 46], 10.00th=[ 49], 20.00th=[ 53], | 30.00th=[ 56], 40.00th=[ 58], 50.00th=[ 62], 60.00th=[ 65], | 70.00th=[ 68], 80.00th=[ 73], 90.00th=[ 82], 95.00th=[ 92], | 99.00th=[ 105], 99.50th=[ 111], 99.90th=[ 126], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 328, max= 648, per=25.37%, avg=506.85, stdev=85.85, samples=20 iops : min= 82, max= 162, avg=126.55, stdev=21.51, samples=20 lat (msec) : 20=0.12%, 50=15.66%, 100=82.50%, 250=1.72% cpu : usr=0.46%, sys=4.00%, ctx=4576, 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=183250: Fri Apr 10 22:55:07 2026 read: IOPS=119, BW=479KiB/s (491kB/s)(4984KiB/10396msec) slat (usec): min=37, max=16068, avg=4311.33, stdev=1935.99 clat (msec): min=24, max=113, avg=61.70, stdev=13.63 lat (msec): min=29, max=118, avg=66.01, stdev=14.10 clat percentiles (msec): | 1.00th=[ 39], 5.00th=[ 44], 10.00th=[ 47], 20.00th=[ 51], | 30.00th=[ 54], 40.00th=[ 57], 50.00th=[ 59], 60.00th=[ 63], | 70.00th=[ 67], 80.00th=[ 72], 90.00th=[ 81], 95.00th=[ 89], | 99.00th=[ 105], 99.50th=[ 108], 99.90th=[ 112], 99.95th=[ 114], | 99.99th=[ 114] bw ( KiB/s): min= 288, max= 630, per=25.04%, avg=480.45, stdev=86.93, samples=20 iops : min= 72, max= 157, avg=119.90, stdev=21.72, samples=20 write: IOPS=126, BW=506KiB/s (518kB/s)(5256KiB/10396msec); 0 zone resets slat (usec): min=38, max=7147, avg=212.31, stdev=287.89 clat (msec): min=21, max=117, avg=63.60, stdev=13.64 lat (msec): min=22, max=117, avg=63.82, stdev=13.65 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 46], 10.00th=[ 49], 20.00th=[ 53], | 30.00th=[ 56], 40.00th=[ 59], 50.00th=[ 62], 60.00th=[ 66], | 70.00th=[ 69], 80.00th=[ 74], 90.00th=[ 83], 95.00th=[ 91], | 99.00th=[ 104], 99.50th=[ 107], 99.90th=[ 113], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 376, max= 601, per=25.09%, avg=501.30, stdev=70.70, samples=20 iops : min= 94, max= 150, avg=125.15, stdev=17.68, samples=20 lat (msec) : 50=15.74%, 100=82.70%, 250=1.56% cpu : usr=0.36%, sys=4.08%, ctx=4488, 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=183251: Fri Apr 10 22:55:07 2026 read: IOPS=121, BW=484KiB/s (496kB/s)(5060KiB/10450msec) slat (usec): min=1511, max=15861, avg=4298.30, stdev=1885.49 clat (msec): min=25, max=111, avg=61.01, stdev=13.45 lat (msec): min=29, max=117, avg=65.32, stdev=13.96 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 44], 10.00th=[ 46], 20.00th=[ 50], | 30.00th=[ 54], 40.00th=[ 57], 50.00th=[ 60], 60.00th=[ 63], | 70.00th=[ 66], 80.00th=[ 71], 90.00th=[ 80], 95.00th=[ 88], | 99.00th=[ 102], 99.50th=[ 106], 99.90th=[ 111], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 262, max= 614, per=25.05%, avg=480.75, stdev=91.23, samples=20 iops : min= 65, max= 153, avg=120.00, stdev=22.85, samples=20 write: IOPS=123, BW=496KiB/s (508kB/s)(5180KiB/10450msec); 0 zone resets slat (usec): min=55, max=3761, avg=193.11, stdev=219.77 clat (msec): min=29, max=116, avg=64.32, stdev=13.75 lat (msec): min=29, max=116, avg=64.52, stdev=13.76 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 47], 10.00th=[ 50], 20.00th=[ 53], | 30.00th=[ 56], 40.00th=[ 59], 50.00th=[ 63], 60.00th=[ 66], | 70.00th=[ 70], 80.00th=[ 75], 90.00th=[ 84], 95.00th=[ 93], | 99.00th=[ 103], 99.50th=[ 107], 99.90th=[ 115], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 392, max= 606, per=24.62%, avg=491.85, stdev=54.05, samples=20 iops : min= 98, max= 151, avg=122.80, stdev=13.45, samples=20 lat (msec) : 50=16.68%, 100=81.64%, 250=1.68% cpu : usr=0.41%, sys=4.06%, ctx=4596, 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=1920KiB/s (1966kB/s), 479KiB/s-484KiB/s (491kB/s-496kB/s), io=19.6MiB (20.5MB), run=10380-10453msec WRITE: bw=1999KiB/s (2047kB/s), 496KiB/s-507KiB/s (508kB/s-519kB/s), io=20.4MiB (21.4MB), run=10380-10453msec 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=183256: Fri Apr 10 22:55:11 2026 read: IOPS=5, BW=229MiB/s (240MB/s)(40.0MiB/175msec) slat (nsec): min=13330k, max=13330k, avg=13329896.00, stdev= 0.00 clat (nsec): min=150303k, max=150303k, avg=150302842.00, stdev= 0.00 lat (nsec): min=163637k, max=163637k, avg=163636938.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 150], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 150], 95.00th=[ 150], | 99.00th=[ 150], 99.50th=[ 150], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] lat (msec) : 250=100.00% cpu : usr=0.57%, sys=5.75%, ctx=12, majf=0, minf=7 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=229MiB/s (240MB/s), 229MiB/s-229MiB/s (240MB/s-240MB/s), io=40.0MiB (41.9MB), run=175-175msec 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