== sanity test 398c: run fio to test AIO ================= 15:20:05 (1780341605) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.52724 s, 79.6 MB/s osc.lustre-OST0000-osc-ffff93dea1027800.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=179876: Mon Jun 1 15:20:40 2026 write: IOPS=100, BW=400KiB/s (410kB/s)(10.0MiB/25572msec); 0 zone resets slat (usec): min=52, max=16473, avg=299.06, stdev=734.30 clat (msec): min=34, max=313, avg=158.95, stdev=41.56 lat (msec): min=34, max=313, avg=159.25, stdev=41.59 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 105], 10.00th=[ 113], 20.00th=[ 124], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 150], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 313] bw ( KiB/s): min= 247, max= 574, per=25.02%, avg=400.02, stdev=81.58, samples=50 iops : min= 61, max= 143, avg=99.62, stdev=20.43, samples=50 lat (msec) : 50=0.08%, 100=3.44%, 250=93.52%, 500=2.97% cpu : usr=0.19%, sys=1.40%, ctx=2951, 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=179877: Mon Jun 1 15:20:40 2026 write: IOPS=100, BW=401KiB/s (411kB/s)(10.0MiB/25509msec); 0 zone resets slat (usec): min=37, max=18601, avg=341.90, stdev=933.55 clat (msec): min=25, max=310, avg=158.88, stdev=42.74 lat (msec): min=25, max=311, avg=159.22, stdev=42.78 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 104], 10.00th=[ 112], 20.00th=[ 125], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 163], | 70.00th=[ 178], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 205, max= 566, per=25.12%, avg=401.62, stdev=83.43, samples=50 iops : min= 51, max= 141, avg=100.00, stdev=20.91, samples=50 lat (msec) : 50=0.16%, 100=3.55%, 250=93.40%, 500=2.89% cpu : usr=0.22%, sys=1.51%, ctx=3056, 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=179878: Mon Jun 1 15:20:40 2026 write: IOPS=100, BW=400KiB/s (410kB/s)(10.0MiB/25587msec); 0 zone resets slat (usec): min=36, max=15436, avg=282.27, stdev=755.51 clat (msec): min=66, max=312, avg=159.11, stdev=40.96 lat (msec): min=66, max=312, avg=159.40, stdev=40.96 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 107], 10.00th=[ 116], 20.00th=[ 125], | 30.00th=[ 132], 40.00th=[ 138], 50.00th=[ 150], 60.00th=[ 165], | 70.00th=[ 180], 80.00th=[ 197], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 259], 99.50th=[ 268], 99.90th=[ 288], 99.95th=[ 305], | 99.99th=[ 313] bw ( KiB/s): min= 244, max= 560, per=25.01%, avg=399.96, stdev=87.55, samples=50 iops : min= 61, max= 140, avg=99.62, stdev=21.96, samples=50 lat (msec) : 100=3.16%, 250=94.53%, 500=2.30% cpu : usr=0.22%, sys=1.21%, ctx=2609, 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=179879: Mon Jun 1 15:20:40 2026 write: IOPS=99, BW=400KiB/s (409kB/s)(10.0MiB/25613msec); 0 zone resets slat (usec): min=38, max=11006, avg=290.30, stdev=660.07 clat (msec): min=22, max=310, avg=159.15, stdev=41.60 lat (msec): min=23, max=310, avg=159.45, stdev=41.59 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 106], 10.00th=[ 115], 20.00th=[ 124], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 264], 99.50th=[ 305], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 252, max= 582, per=24.94%, avg=398.72, stdev=84.86, samples=50 iops : min= 63, max= 145, avg=99.28, stdev=21.29, samples=50 lat (msec) : 50=0.16%, 100=2.93%, 250=94.88%, 500=2.03% cpu : usr=0.18%, sys=1.32%, ctx=2743, 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 Run status group 0 (all jobs): WRITE: bw=1599KiB/s (1638kB/s), 400KiB/s-401KiB/s (409kB/s-411kB/s), io=40.0MiB (41.9MB), run=25509-25613msec 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=179893: Mon Jun 1 15:21:15 2026 read: IOPS=49, BW=198KiB/s (202kB/s)(5048KiB/25550msec) slat (usec): min=1913, max=61327, avg=11579.74, stdev=6228.77 clat (msec): min=23, max=312, avg=150.05, stdev=37.28 lat (msec): min=28, max=326, avg=161.63, stdev=38.77 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 92], 10.00th=[ 104], 20.00th=[ 120], | 30.00th=[ 130], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 167], 80.00th=[ 182], 90.00th=[ 201], 95.00th=[ 213], | 99.00th=[ 247], 99.50th=[ 259], 99.90th=[ 288], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 104, max= 317, per=24.98%, avg=196.10, stdev=43.13, samples=50 iops : min= 26, max= 79, avg=48.52, stdev=10.80, samples=50 write: IOPS=50, BW=203KiB/s (208kB/s)(5192KiB/25550msec); 0 zone resets slat (usec): min=57, max=8011, avg=294.52, stdev=609.54 clat (msec): min=32, max=338, avg=155.99, stdev=37.83 lat (msec): min=33, max=338, avg=156.29, stdev=37.84 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 97], 10.00th=[ 109], 20.00th=[ 123], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 188], 90.00th=[ 205], 95.00th=[ 218], | 99.00th=[ 259], 99.50th=[ 275], 99.90th=[ 321], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 136, max= 303, per=24.71%, avg=201.84, stdev=40.11, samples=50 iops : min= 34, max= 75, avg=49.96, stdev=10.07, samples=50 lat (msec) : 50=0.23%, 100=7.54%, 250=91.21%, 500=1.02% cpu : usr=0.35%, sys=2.35%, ctx=4808, 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=179894: Mon Jun 1 15:21:15 2026 read: IOPS=48, BW=196KiB/s (200kB/s)(4976KiB/25436msec) slat (usec): min=2222, max=35919, avg=11275.53, stdev=5820.60 clat (msec): min=28, max=352, avg=149.17, stdev=38.73 lat (msec): min=32, max=365, avg=160.45, stdev=40.38 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 88], 10.00th=[ 99], 20.00th=[ 116], | 30.00th=[ 130], 40.00th=[ 142], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 167], 80.00th=[ 180], 90.00th=[ 199], 95.00th=[ 215], | 99.00th=[ 245], 99.50th=[ 268], 99.90th=[ 342], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 128, max= 285, per=24.68%, avg=193.76, stdev=39.17, samples=50 iops : min= 32, max= 71, avg=47.94, stdev= 9.84, samples=50 write: IOPS=51, BW=207KiB/s (212kB/s)(5264KiB/25436msec); 0 zone resets slat (usec): min=42, max=20431, avg=322.22, stdev=991.28 clat (msec): min=73, max=337, avg=155.94, stdev=36.47 lat (msec): min=74, max=337, avg=156.26, stdev=36.52 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 95], 10.00th=[ 107], 20.00th=[ 125], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 241], 99.50th=[ 262], 99.90th=[ 313], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 88, max= 304, per=25.18%, avg=205.74, stdev=44.73, samples=50 iops : min= 22, max= 76, avg=50.92, stdev=11.21, samples=50 lat (msec) : 50=0.08%, 100=9.02%, 250=90.16%, 500=0.74% cpu : usr=0.24%, sys=2.28%, ctx=4747, 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=179895: Mon Jun 1 15:21:15 2026 read: IOPS=48, BW=195KiB/s (200kB/s)(4984KiB/25525msec) slat (usec): min=2546, max=45037, avg=11656.30, stdev=5996.96 clat (msec): min=33, max=322, avg=150.42, stdev=37.42 lat (msec): min=57, max=339, avg=162.08, stdev=38.73 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 92], 10.00th=[ 104], 20.00th=[ 120], | 30.00th=[ 130], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 180], 90.00th=[ 197], 95.00th=[ 213], | 99.00th=[ 259], 99.50th=[ 271], 99.90th=[ 317], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 96, max= 272, per=24.84%, avg=195.02, stdev=38.54, samples=50 iops : min= 24, max= 68, avg=48.26, stdev= 9.64, samples=50 write: IOPS=51, BW=206KiB/s (211kB/s)(5256KiB/25525msec); 0 zone resets slat (usec): min=55, max=14940, avg=274.63, stdev=659.57 clat (msec): min=58, max=301, avg=155.57, stdev=38.67 lat (msec): min=58, max=301, avg=155.85, stdev=38.65 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 94], 10.00th=[ 105], 20.00th=[ 124], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 220], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 111, max= 296, per=25.00%, avg=204.28, stdev=47.04, samples=50 iops : min= 27, max= 74, avg=50.58, stdev=11.80, samples=50 lat (msec) : 50=0.04%, 100=8.09%, 250=90.12%, 500=1.76% cpu : usr=0.29%, sys=2.36%, ctx=4746, 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=179896: Mon Jun 1 15:21:15 2026 read: IOPS=49, BW=199KiB/s (204kB/s)(5060KiB/25365msec) slat (usec): min=52, max=44739, avg=11570.39, stdev=6262.48 clat (msec): min=17, max=285, avg=150.35, stdev=38.18 lat (msec): min=17, max=318, avg=161.93, stdev=39.80 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 90], 10.00th=[ 102], 20.00th=[ 121], | 30.00th=[ 130], 40.00th=[ 138], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 167], 80.00th=[ 180], 90.00th=[ 201], 95.00th=[ 220], | 99.00th=[ 255], 99.50th=[ 262], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 96, max= 280, per=25.34%, avg=198.94, stdev=33.35, samples=49 iops : min= 24, max= 70, avg=49.22, stdev= 8.40, samples=49 write: IOPS=51, BW=204KiB/s (209kB/s)(5180KiB/25365msec); 0 zone resets slat (usec): min=37, max=9645, avg=288.75, stdev=643.89 clat (msec): min=34, max=360, avg=154.36, stdev=38.28 lat (msec): min=36, max=360, avg=154.66, stdev=38.26 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 95], 10.00th=[ 106], 20.00th=[ 124], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 218], | 99.00th=[ 259], 99.50th=[ 292], 99.90th=[ 334], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 100, max= 343, per=24.86%, avg=203.14, stdev=50.64, samples=49 iops : min= 25, max= 85, avg=50.29, stdev=12.66, samples=49 lat (msec) : 20=0.04%, 50=0.23%, 100=8.05%, 250=90.39%, 500=1.29% cpu : usr=0.32%, sys=2.21%, ctx=4374, 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=785KiB/s (804kB/s), 195KiB/s-199KiB/s (200kB/s-204kB/s), io=19.6MiB (20.5MB), run=25365-25550msec WRITE: bw=818KiB/s (837kB/s), 203KiB/s-207KiB/s (208kB/s-212kB/s), io=20.4MiB (21.4MB), run=25365-25550msec 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=179904: Mon Jun 1 15:21:24 2026 read: IOPS=2, BW=88.7MiB/s (93.0MB/s)(40.0MiB/451msec) slat (nsec): min=40140k, max=40140k, avg=40140098.00, stdev= 0.00 clat (nsec): min=382936k, max=382936k, avg=382935575.00, stdev= 0.00 lat (nsec): min=423081k, max=423081k, avg=423080893.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.67%, ctx=12, majf=0, minf=9 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=88.7MiB/s (93.0MB/s), 88.7MiB/s-88.7MiB/s (93.0MB/s-93.0MB/s), io=40.0MiB (41.9MB), run=451-451msec 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