== sanity test 398c: run fio to test AIO ================= 01:49:15 (1783144155) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.221838 s, 189 MB/s osc.lustre-OST0000-osc-ffff992c671ac800.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=180040: Sat Jul 4 01:49:34 2026 write: IOPS=179, BW=717KiB/s (734kB/s)(10.0MiB/14286msec); 0 zone resets slat (usec): min=37, max=5887, avg=258.24, stdev=364.32 clat (msec): min=12, max=178, avg=88.70, stdev=15.84 lat (msec): min=13, max=178, avg=88.96, stdev=15.84 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 65], 10.00th=[ 72], 20.00th=[ 79], | 30.00th=[ 82], 40.00th=[ 85], 50.00th=[ 89], 60.00th=[ 92], | 70.00th=[ 95], 80.00th=[ 100], 90.00th=[ 106], 95.00th=[ 113], | 99.00th=[ 140], 99.50th=[ 142], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 614, max= 847, per=25.00%, avg=716.64, stdev=67.13, samples=28 iops : min= 153, max= 211, avg=178.86, stdev=16.81, samples=28 lat (msec) : 20=0.04%, 50=1.29%, 100=79.73%, 250=18.95% cpu : usr=0.32%, sys=2.57%, ctx=2720, 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=180041: Sat Jul 4 01:49:34 2026 write: IOPS=180, BW=721KiB/s (739kB/s)(10.0MiB/14197msec); 0 zone resets slat (usec): min=42, max=5128, avg=268.86, stdev=372.58 clat (msec): min=12, max=143, avg=88.14, stdev=16.02 lat (msec): min=12, max=143, avg=88.41, stdev=16.02 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 64], 10.00th=[ 71], 20.00th=[ 78], | 30.00th=[ 82], 40.00th=[ 86], 50.00th=[ 89], 60.00th=[ 92], | 70.00th=[ 95], 80.00th=[ 100], 90.00th=[ 107], 95.00th=[ 113], | 99.00th=[ 136], 99.50th=[ 136], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 144] bw ( KiB/s): min= 614, max= 938, per=25.08%, avg=719.04, stdev=72.10, samples=28 iops : min= 153, max= 234, avg=179.46, stdev=18.06, samples=28 lat (msec) : 20=0.08%, 50=1.72%, 100=79.30%, 250=18.91% cpu : usr=0.37%, sys=2.65%, ctx=2841, 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=180042: Sat Jul 4 01:49:34 2026 write: IOPS=181, BW=727KiB/s (745kB/s)(10.0MiB/14079msec); 0 zone resets slat (usec): min=46, max=4537, avg=263.78, stdev=359.10 clat (msec): min=10, max=141, avg=87.61, stdev=17.08 lat (msec): min=11, max=142, avg=87.88, stdev=17.09 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 77], | 30.00th=[ 82], 40.00th=[ 85], 50.00th=[ 89], 60.00th=[ 92], | 70.00th=[ 95], 80.00th=[ 100], 90.00th=[ 107], 95.00th=[ 113], | 99.00th=[ 136], 99.50th=[ 140], 99.90th=[ 142], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 574, max= 1053, per=25.31%, avg=725.70, stdev=98.70, samples=27 iops : min= 143, max= 263, avg=181.15, stdev=24.74, samples=27 lat (msec) : 20=0.12%, 50=2.62%, 100=78.01%, 250=19.26% cpu : usr=0.32%, sys=2.83%, ctx=2834, 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=180043: Sat Jul 4 01:49:34 2026 write: IOPS=179, BW=717KiB/s (734kB/s)(10.0MiB/14286msec); 0 zone resets slat (usec): min=38, max=4436, avg=259.22, stdev=335.31 clat (msec): min=15, max=188, avg=88.64, stdev=15.89 lat (msec): min=15, max=188, avg=88.90, stdev=15.88 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 78], | 30.00th=[ 82], 40.00th=[ 85], 50.00th=[ 89], 60.00th=[ 92], | 70.00th=[ 95], 80.00th=[ 100], 90.00th=[ 107], 95.00th=[ 114], | 99.00th=[ 136], 99.50th=[ 142], 99.90th=[ 163], 99.95th=[ 167], | 99.99th=[ 188] bw ( KiB/s): min= 574, max= 852, per=24.99%, avg=716.54, stdev=69.05, samples=28 iops : min= 143, max= 213, avg=178.86, stdev=17.35, samples=28 lat (msec) : 20=0.04%, 50=1.33%, 100=79.38%, 250=19.26% cpu : usr=0.30%, sys=2.56%, ctx=2870, 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=2867KiB/s (2936kB/s), 717KiB/s-727KiB/s (734kB/s-745kB/s), io=40.0MiB (41.9MB), run=14079-14286msec 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=180055: Sat Jul 4 01:49:51 2026 read: IOPS=98, BW=394KiB/s (403kB/s)(5048KiB/12817msec) slat (usec): min=89, max=14850, avg=5437.86, stdev=2139.12 clat (msec): min=6, max=140, avg=75.94, stdev=15.95 lat (msec): min=8, max=148, avg=81.38, stdev=16.56 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 58], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 79], | 70.00th=[ 83], 80.00th=[ 88], 90.00th=[ 97], 95.00th=[ 106], | 99.00th=[ 121], 99.50th=[ 127], 99.90th=[ 131], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 287, max= 464, per=25.35%, avg=392.44, stdev=48.04, samples=25 iops : min= 71, max= 116, avg=97.88, stdev=12.04, samples=25 write: IOPS=101, BW=405KiB/s (415kB/s)(5192KiB/12817msec); 0 zone resets slat (usec): min=43, max=15178, avg=279.77, stdev=544.46 clat (msec): min=30, max=139, avg=78.25, stdev=15.41 lat (msec): min=30, max=139, avg=78.53, stdev=15.46 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 62], 20.00th=[ 66], | 30.00th=[ 69], 40.00th=[ 73], 50.00th=[ 77], 60.00th=[ 81], | 70.00th=[ 86], 80.00th=[ 90], 90.00th=[ 97], 95.00th=[ 108], | 99.00th=[ 124], 99.50th=[ 129], 99.90th=[ 138], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 271, max= 560, per=25.16%, avg=405.40, stdev=63.19, samples=25 iops : min= 67, max= 140, avg=101.12, stdev=15.93, samples=25 lat (msec) : 10=0.08%, 20=0.12%, 50=1.21%, 100=90.12%, 250=8.48% cpu : usr=0.42%, sys=4.06%, ctx=4535, 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=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=180056: Sat Jul 4 01:49:51 2026 read: IOPS=95, BW=384KiB/s (393kB/s)(4976KiB/12962msec) slat (usec): min=1704, max=21755, avg=5441.74, stdev=2102.05 clat (msec): min=12, max=147, avg=76.61, stdev=15.91 lat (msec): min=16, max=152, avg=82.06, stdev=16.54 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 55], 10.00th=[ 58], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 75], 60.00th=[ 80], | 70.00th=[ 84], 80.00th=[ 90], 90.00th=[ 100], 95.00th=[ 106], | 99.00th=[ 120], 99.50th=[ 125], 99.90th=[ 129], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 295, max= 488, per=24.61%, avg=380.96, stdev=49.02, samples=25 iops : min= 73, max= 122, avg=95.00, stdev=12.36, samples=25 write: IOPS=101, BW=406KiB/s (416kB/s)(5264KiB/12962msec); 0 zone resets slat (usec): min=52, max=4461, avg=269.24, stdev=324.43 clat (msec): min=41, max=124, avg=78.71, stdev=14.04 lat (msec): min=41, max=124, avg=78.99, stdev=14.05 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 59], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 70], 40.00th=[ 74], 50.00th=[ 78], 60.00th=[ 82], | 70.00th=[ 86], 80.00th=[ 91], 90.00th=[ 97], 95.00th=[ 104], | 99.00th=[ 116], 99.50th=[ 122], 99.90th=[ 125], 99.95th=[ 125], | 99.99th=[ 125] bw ( KiB/s): min= 255, max= 512, per=25.14%, avg=405.08, stdev=62.72, samples=25 iops : min= 63, max= 128, avg=101.04, stdev=15.79, samples=25 lat (msec) : 20=0.16%, 50=0.90%, 100=90.35%, 250=8.59% cpu : usr=0.42%, sys=3.93%, ctx=4487, 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=180057: Sat Jul 4 01:49:51 2026 read: IOPS=96, BW=385KiB/s (394kB/s)(4984KiB/12942msec) slat (usec): min=1842, max=17555, avg=5435.22, stdev=2081.44 clat (msec): min=8, max=134, avg=75.94, stdev=15.28 lat (msec): min=11, max=142, avg=81.38, stdev=15.76 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 75], 60.00th=[ 79], | 70.00th=[ 83], 80.00th=[ 89], 90.00th=[ 96], 95.00th=[ 103], | 99.00th=[ 118], 99.50th=[ 126], 99.90th=[ 134], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 255, max= 512, per=24.93%, avg=385.88, stdev=71.33, samples=25 iops : min= 63, max= 128, avg=96.24, stdev=17.92, samples=25 write: IOPS=101, BW=406KiB/s (416kB/s)(5256KiB/12942msec); 0 zone resets slat (usec): min=46, max=7170, avg=256.85, stdev=328.64 clat (msec): min=42, max=133, avg=79.14, stdev=14.60 lat (msec): min=43, max=134, avg=79.40, stdev=14.62 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 59], 10.00th=[ 63], 20.00th=[ 68], | 30.00th=[ 70], 40.00th=[ 74], 50.00th=[ 78], 60.00th=[ 82], | 70.00th=[ 87], 80.00th=[ 92], 90.00th=[ 100], 95.00th=[ 107], | 99.00th=[ 120], 99.50th=[ 121], 99.90th=[ 132], 99.95th=[ 134], | 99.99th=[ 134] bw ( KiB/s): min= 327, max= 504, per=25.04%, avg=403.32, stdev=56.76, samples=25 iops : min= 81, max= 126, avg=100.60, stdev=14.32, samples=25 lat (msec) : 10=0.08%, 20=0.04%, 50=1.37%, 100=90.70%, 250=7.81% cpu : usr=0.35%, sys=3.96%, ctx=4474, 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=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=180058: Sat Jul 4 01:49:51 2026 read: IOPS=97, BW=390KiB/s (400kB/s)(5060KiB/12963msec) slat (usec): min=1766, max=21542, avg=5491.44, stdev=2165.33 clat (msec): min=11, max=139, avg=76.17, stdev=15.30 lat (msec): min=15, max=148, avg=81.67, stdev=15.82 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 55], 10.00th=[ 59], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 79], | 70.00th=[ 83], 80.00th=[ 89], 90.00th=[ 99], 95.00th=[ 104], | 99.00th=[ 117], 99.50th=[ 126], 99.90th=[ 138], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 239, max= 488, per=25.11%, avg=388.68, stdev=59.23, samples=25 iops : min= 59, max= 122, avg=96.92, stdev=14.84, samples=25 write: IOPS=99, BW=400KiB/s (409kB/s)(5180KiB/12963msec); 0 zone resets slat (usec): min=51, max=12211, avg=261.86, stdev=433.85 clat (msec): min=12, max=129, avg=78.97, stdev=14.64 lat (msec): min=12, max=134, avg=79.24, stdev=14.68 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 59], 10.00th=[ 63], 20.00th=[ 67], | 30.00th=[ 71], 40.00th=[ 74], 50.00th=[ 79], 60.00th=[ 82], | 70.00th=[ 86], 80.00th=[ 91], 90.00th=[ 99], 95.00th=[ 105], | 99.00th=[ 118], 99.50th=[ 123], 99.90th=[ 129], 99.95th=[ 130], | 99.99th=[ 130] bw ( KiB/s): min= 279, max= 576, per=24.55%, avg=395.52, stdev=69.13, samples=25 iops : min= 69, max= 144, avg=98.64, stdev=17.45, samples=25 lat (msec) : 20=0.08%, 50=1.13%, 100=90.55%, 250=8.24% cpu : usr=0.43%, sys=3.97%, ctx=4522, 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=1548KiB/s (1585kB/s), 384KiB/s-394KiB/s (393kB/s-403kB/s), io=19.6MiB (20.5MB), run=12817-12963msec WRITE: bw=1612KiB/s (1650kB/s), 400KiB/s-406KiB/s (409kB/s-416kB/s), io=20.4MiB (21.4MB), run=12817-12963msec 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=180063: Sat Jul 4 01:49:56 2026 read: IOPS=4, BW=192MiB/s (202MB/s)(40.0MiB/208msec) slat (nsec): min=18633k, max=18633k, avg=18633442.00, stdev= 0.00 clat (nsec): min=177269k, max=177269k, avg=177269304.00, stdev= 0.00 lat (nsec): min=195908k, max=195908k, avg=195907577.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 178], 60.00th=[ 178], | 70.00th=[ 178], 80.00th=[ 178], 90.00th=[ 178], 95.00th=[ 178], | 99.00th=[ 178], 99.50th=[ 178], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=5.31%, ctx=9, 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=192MiB/s (202MB/s), 192MiB/s-192MiB/s (202MB/s-202MB/s), io=40.0MiB (41.9MB), run=208-208msec 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