== sanity test 398c: run fio to test AIO ================= 10:57:14 (1789138634) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.487714 s, 86.0 MB/s osc.lustre-OST0000-osc-ffff99d7011e1000.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=181780: Fri Sep 11 10:57:53 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29360msec); 0 zone resets slat (usec): min=31, max=12899, avg=194.89, stdev=638.44 clat (msec): min=34, max=332, avg=182.75, stdev=45.65 lat (msec): min=35, max=332, avg=182.94, stdev=45.66 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 238, max= 495, per=24.95%, avg=348.12, stdev=72.39, samples=58 iops : min= 59, max= 123, avg=86.62, stdev=18.10, samples=58 lat (msec) : 50=0.12%, 100=2.19%, 250=90.16%, 500=7.54% cpu : usr=0.21%, sys=0.86%, ctx=2700, 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=181781: Fri Sep 11 10:57:53 2026 write: IOPS=87, BW=349KiB/s (358kB/s)(10.0MiB/29330msec); 0 zone resets slat (usec): min=28, max=10402, avg=163.59, stdev=592.22 clat (msec): min=52, max=325, avg=183.01, stdev=44.42 lat (msec): min=54, max=325, avg=183.18, stdev=44.41 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 144], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 268], | 99.00th=[ 300], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 326] bw ( KiB/s): min= 232, max= 571, per=24.93%, avg=347.79, stdev=70.85, samples=58 iops : min= 58, max= 142, avg=86.52, stdev=17.69, samples=58 lat (msec) : 100=1.88%, 250=90.70%, 500=7.42% cpu : usr=0.14%, sys=0.81%, ctx=1766, 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=181782: Fri Sep 11 10:57:53 2026 write: IOPS=87, BW=350KiB/s (358kB/s)(10.0MiB/29260msec); 0 zone resets slat (usec): min=29, max=22589, avg=184.25, stdev=669.78 clat (msec): min=19, max=316, avg=182.28, stdev=46.32 lat (msec): min=19, max=316, avg=182.46, stdev=46.31 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 268], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 246, max= 510, per=24.93%, avg=347.78, stdev=74.49, samples=58 iops : min= 61, max= 127, avg=86.53, stdev=18.64, samples=58 lat (msec) : 20=0.04%, 50=0.39%, 100=2.54%, 250=89.73%, 500=7.30% cpu : usr=0.17%, sys=0.88%, ctx=2463, 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=181783: Fri Sep 11 10:57:53 2026 write: IOPS=87, BW=349KiB/s (357kB/s)(10.0MiB/29350msec); 0 zone resets slat (usec): min=29, max=14141, avg=227.50, stdev=791.13 clat (msec): min=24, max=322, avg=183.14, stdev=45.03 lat (msec): min=24, max=322, avg=183.37, stdev=44.98 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 208, max= 525, per=24.94%, avg=347.84, stdev=67.91, samples=58 iops : min= 52, max= 131, avg=86.57, stdev=16.98, samples=58 lat (msec) : 50=0.12%, 100=2.30%, 250=89.49%, 500=8.09% cpu : usr=0.16%, sys=0.97%, ctx=2392, 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=1395KiB/s (1429kB/s), 349KiB/s-350KiB/s (357kB/s-358kB/s), io=40.0MiB (41.9MB), run=29260-29360msec 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=181799: Fri Sep 11 10:58:31 2026 read: IOPS=44, BW=178KiB/s (182kB/s)(5048KiB/28376msec) slat (usec): min=3080, max=43953, avg=12084.36, stdev=6319.36 clat (msec): min=25, max=316, avg=167.46, stdev=40.04 lat (msec): min=41, max=330, avg=179.55, stdev=41.64 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 296], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 95, max= 328, per=25.02%, avg=176.89, stdev=43.29, samples=55 iops : min= 23, max= 82, avg=43.76, stdev=10.95, samples=55 write: IOPS=45, BW=183KiB/s (187kB/s)(5192KiB/28376msec); 0 zone resets slat (usec): min=35, max=17639, avg=245.20, stdev=785.08 clat (msec): min=85, max=309, avg=172.50, stdev=37.98 lat (msec): min=85, max=309, avg=172.75, stdev=37.96 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 118], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 103, max= 294, per=24.80%, avg=182.56, stdev=37.29, samples=55 iops : min= 25, max= 73, avg=45.20, stdev= 9.36, samples=55 lat (msec) : 50=0.04%, 100=1.60%, 250=95.12%, 500=3.24% cpu : usr=0.29%, sys=1.83%, ctx=4683, 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=181800: Fri Sep 11 10:58:31 2026 read: IOPS=44, BW=176KiB/s (180kB/s)(4976KiB/28263msec) slat (usec): min=56, max=44899, avg=12362.66, stdev=6364.81 clat (msec): min=12, max=322, avg=167.26, stdev=39.89 lat (msec): min=19, max=333, avg=179.63, stdev=41.52 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 111], 10.00th=[ 122], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 103, max= 288, per=24.75%, avg=174.98, stdev=41.97, samples=55 iops : min= 25, max= 72, avg=43.29, stdev=10.57, samples=55 write: IOPS=46, BW=186KiB/s (191kB/s)(5264KiB/28263msec); 0 zone resets slat (usec): min=36, max=10320, avg=264.29, stdev=701.67 clat (msec): min=42, max=333, avg=172.69, stdev=38.14 lat (msec): min=43, max=333, avg=172.95, stdev=38.12 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 243], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 95, max= 304, per=25.30%, avg=186.24, stdev=45.66, samples=55 iops : min= 23, max= 76, avg=46.13, stdev=11.52, samples=55 lat (msec) : 20=0.08%, 50=0.16%, 100=1.29%, 250=95.39%, 500=3.09% cpu : usr=0.23%, sys=1.98%, ctx=4778, 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=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=181801: Fri Sep 11 10:58:31 2026 read: IOPS=43, BW=176KiB/s (180kB/s)(4984KiB/28377msec) slat (usec): min=2585, max=51847, avg=12485.08, stdev=6564.38 clat (msec): min=26, max=305, avg=168.93, stdev=39.47 lat (msec): min=34, max=337, avg=181.42, stdev=41.40 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 113], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 222], 95.00th=[ 234], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 101, max= 264, per=24.82%, avg=175.47, stdev=31.90, samples=55 iops : min= 25, max= 66, avg=43.42, stdev= 8.03, samples=55 write: IOPS=46, BW=185KiB/s (190kB/s)(5256KiB/28377msec); 0 zone resets slat (usec): min=34, max=9754, avg=213.53, stdev=567.25 clat (msec): min=90, max=317, avg=170.84, stdev=37.10 lat (msec): min=91, max=317, avg=171.05, stdev=37.09 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 117], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 239], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 95, max= 286, per=24.99%, avg=183.93, stdev=50.96, samples=55 iops : min= 23, max= 71, avg=45.53, stdev=12.82, samples=55 lat (msec) : 50=0.04%, 100=1.25%, 250=96.02%, 500=2.70% cpu : usr=0.27%, sys=1.77%, ctx=4533, 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=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=181802: Fri Sep 11 10:58:31 2026 read: IOPS=44, BW=179KiB/s (183kB/s)(5060KiB/28304msec) slat (usec): min=2902, max=45174, avg=12077.69, stdev=6160.35 clat (msec): min=64, max=306, avg=165.89, stdev=39.25 lat (msec): min=78, max=331, avg=177.98, stdev=40.84 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 111], 10.00th=[ 121], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 117, max= 296, per=25.22%, avg=178.31, stdev=36.23, samples=55 iops : min= 29, max= 74, avg=44.13, stdev= 9.14, samples=55 write: IOPS=45, BW=183KiB/s (187kB/s)(5180KiB/28304msec); 0 zone resets slat (usec): min=31, max=9828, avg=258.92, stdev=709.14 clat (msec): min=81, max=306, avg=173.26, stdev=38.96 lat (msec): min=81, max=306, avg=173.52, stdev=38.94 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 120], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 95, max= 286, per=24.76%, avg=182.24, stdev=39.59, samples=55 iops : min= 23, max= 71, avg=45.11, stdev= 9.98, samples=55 lat (msec) : 100=1.09%, 250=95.59%, 500=3.32% cpu : usr=0.25%, sys=1.82%, ctx=4542, 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=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=707KiB/s (724kB/s), 176KiB/s-179KiB/s (180kB/s-183kB/s), io=19.6MiB (20.5MB), run=28263-28377msec WRITE: bw=736KiB/s (754kB/s), 183KiB/s-186KiB/s (187kB/s-191kB/s), io=20.4MiB (21.4MB), run=28263-28377msec 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=181810: Fri Sep 11 10:58:40 2026 read: IOPS=2, BW=101MiB/s (106MB/s)(40.0MiB/396msec) slat (nsec): min=45807k, max=45807k, avg=45806501.00, stdev= 0.00 clat (nsec): min=327885k, max=327885k, avg=327885275.00, stdev= 0.00 lat (nsec): min=373696k, max=373696k, avg=373695753.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] lat (msec) : 500=100.00% cpu : usr=0.25%, sys=3.29%, ctx=14, 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=101MiB/s (106MB/s), 101MiB/s-101MiB/s (106MB/s-106MB/s), io=40.0MiB (41.9MB), run=396-396msec 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