== sanity test 398c: run fio to test AIO ================= 15:09:51 (1773688191) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.149474 s, 281 MB/s osc.lustre-OST0000-osc-ffff9026eb627800.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=181113: Mon Mar 16 15:10:24 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29891msec); 0 zone resets slat (usec): min=34, max=2765, avg=206.83, stdev=119.07 clat (msec): min=43, max=290, avg=186.46, stdev=37.66 lat (msec): min=43, max=291, avg=186.67, stdev=37.67 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 120], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 234], 95.00th=[ 247], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 256, max= 613, per=24.86%, avg=340.56, stdev=58.49, samples=59 iops : min= 64, max= 153, avg=85.14, stdev=14.60, samples=59 lat (msec) : 50=0.62%, 100=0.98%, 250=94.10%, 500=4.30% cpu : usr=0.18%, sys=1.46%, ctx=2703, 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=181114: Mon Mar 16 15:10:24 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29891msec); 0 zone resets slat (usec): min=35, max=1697, avg=212.52, stdev=108.32 clat (msec): min=56, max=290, avg=186.40, stdev=37.20 lat (msec): min=56, max=291, avg=186.61, stdev=37.21 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 113], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 234], 95.00th=[ 247], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 256, max= 613, per=24.88%, avg=340.83, stdev=59.13, samples=59 iops : min= 64, max= 153, avg=85.20, stdev=14.76, samples=59 lat (msec) : 100=1.99%, 250=93.98%, 500=4.02% cpu : usr=0.15%, sys=1.54%, ctx=2758, 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=181115: Mon Mar 16 15:10:24 2026 write: IOPS=85, BW=343KiB/s (352kB/s)(10.0MiB/29821msec); 0 zone resets slat (usec): min=36, max=1412, avg=221.58, stdev=105.45 clat (msec): min=33, max=339, avg=186.03, stdev=38.23 lat (msec): min=33, max=339, avg=186.25, stdev=38.25 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 112], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 232], 95.00th=[ 245], | 99.00th=[ 266], 99.50th=[ 279], 99.90th=[ 317], 99.95th=[ 330], | 99.99th=[ 338] bw ( KiB/s): min= 256, max= 613, per=24.99%, avg=342.32, stdev=58.60, samples=59 iops : min= 64, max= 153, avg=85.58, stdev=14.63, samples=59 lat (msec) : 50=0.62%, 100=1.68%, 250=94.06%, 500=3.63% cpu : usr=0.20%, sys=1.59%, ctx=2718, 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=181116: Mon Mar 16 15:10:24 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29891msec); 0 zone resets slat (usec): min=38, max=807, avg=217.91, stdev=99.64 clat (msec): min=21, max=284, avg=186.37, stdev=36.89 lat (msec): min=21, max=284, avg=186.59, stdev=36.90 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 112], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 232], 95.00th=[ 245], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 284] bw ( KiB/s): min= 256, max= 555, per=24.84%, avg=340.25, stdev=54.79, samples=59 iops : min= 64, max= 138, avg=85.05, stdev=13.65, samples=59 lat (msec) : 50=0.08%, 100=2.11%, 250=94.30%, 500=3.52% cpu : usr=0.17%, sys=1.57%, ctx=2741, 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=1370KiB/s (1403kB/s), 343KiB/s-343KiB/s (351kB/s-352kB/s), io=40.0MiB (41.9MB), run=29821-29891msec 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=181130: Mon Mar 16 15:10:48 2026 read: IOPS=62, BW=248KiB/s (254kB/s)(5048KiB/20330msec) slat (usec): min=1055, max=8042, avg=2744.92, stdev=978.75 clat (msec): min=8, max=154, avg=81.38, stdev=15.93 lat (msec): min=12, max=157, avg=84.13, stdev=16.11 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 60], 10.00th=[ 65], 20.00th=[ 69], | 30.00th=[ 74], 40.00th=[ 79], 50.00th=[ 82], 60.00th=[ 84], | 70.00th=[ 88], 80.00th=[ 93], 90.00th=[ 101], 95.00th=[ 109], | 99.00th=[ 124], 99.50th=[ 130], 99.90th=[ 138], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 135, max= 367, per=25.23%, avg=248.75, stdev=51.82, samples=40 iops : min= 33, max= 91, avg=62.13, stdev=12.96, samples=40 write: IOPS=63, BW=255KiB/s (262kB/s)(5192KiB/20330msec); 0 zone resets slat (usec): min=56, max=924, avg=196.93, stdev=96.31 clat (msec): min=21, max=309, avg=168.09, stdev=38.63 lat (msec): min=21, max=309, avg=168.28, stdev=38.64 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 108], 10.00th=[ 120], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 262], 99.50th=[ 275], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 176, max= 328, per=24.81%, avg=254.78, stdev=34.72, samples=40 iops : min= 44, max= 82, avg=63.63, stdev= 8.73, samples=40 lat (msec) : 10=0.04%, 20=0.27%, 50=0.62%, 100=44.61%, 250=53.32% lat (msec) : 500=1.13% cpu : usr=0.26%, sys=2.41%, ctx=4758, 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=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=181131: Mon Mar 16 15:10:48 2026 read: IOPS=61, BW=245KiB/s (251kB/s)(4976KiB/20287msec) slat (usec): min=56, max=10794, avg=2724.55, stdev=1027.75 clat (msec): min=6, max=152, avg=81.08, stdev=16.78 lat (msec): min=6, max=154, avg=83.81, stdev=17.00 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 59], 10.00th=[ 64], 20.00th=[ 69], | 30.00th=[ 74], 40.00th=[ 79], 50.00th=[ 81], 60.00th=[ 84], | 70.00th=[ 88], 80.00th=[ 93], 90.00th=[ 101], 95.00th=[ 108], | 99.00th=[ 131], 99.50th=[ 136], 99.90th=[ 150], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 127, max= 336, per=24.87%, avg=245.17, stdev=48.93, samples=40 iops : min= 31, max= 84, avg=61.22, stdev=12.22, samples=40 write: IOPS=64, BW=259KiB/s (266kB/s)(5264KiB/20287msec); 0 zone resets slat (usec): min=55, max=1682, avg=200.60, stdev=114.97 clat (msec): min=40, max=308, avg=167.04, stdev=40.93 lat (msec): min=40, max=309, avg=167.24, stdev=40.94 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 108], 10.00th=[ 120], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 236], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 184, max= 400, per=25.18%, avg=258.62, stdev=41.20, samples=40 iops : min= 46, max= 100, avg=64.60, stdev=10.33, samples=40 lat (msec) : 10=0.23%, 20=0.31%, 50=0.82%, 100=43.98%, 250=53.16% lat (msec) : 500=1.48% cpu : usr=0.22%, sys=2.50%, ctx=4745, 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=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=181132: Mon Mar 16 15:10:48 2026 read: IOPS=61, BW=245KiB/s (251kB/s)(4984KiB/20340msec) slat (usec): min=1118, max=11231, avg=2711.02, stdev=998.06 clat (msec): min=2, max=137, avg=81.25, stdev=15.57 lat (msec): min=5, max=139, avg=83.96, stdev=15.77 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 60], 10.00th=[ 65], 20.00th=[ 70], | 30.00th=[ 74], 40.00th=[ 78], 50.00th=[ 81], 60.00th=[ 84], | 70.00th=[ 87], 80.00th=[ 92], 90.00th=[ 101], 95.00th=[ 110], | 99.00th=[ 126], 99.50th=[ 130], 99.90th=[ 136], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 151, max= 408, per=24.79%, avg=244.43, stdev=57.71, samples=40 iops : min= 37, max= 102, avg=61.05, stdev=14.41, samples=40 write: IOPS=64, BW=258KiB/s (265kB/s)(5256KiB/20340msec); 0 zone resets slat (usec): min=55, max=1473, avg=200.09, stdev=101.65 clat (msec): min=15, max=316, avg=167.28, stdev=40.30 lat (msec): min=15, max=316, avg=167.48, stdev=40.31 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 105], 10.00th=[ 122], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 262], 99.50th=[ 271], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 192, max= 328, per=24.83%, avg=254.97, stdev=34.17, samples=40 iops : min= 48, max= 82, avg=63.67, stdev= 8.59, samples=40 lat (msec) : 4=0.04%, 10=0.08%, 20=0.20%, 50=0.82%, 100=44.77% lat (msec) : 250=53.12%, 500=0.98% cpu : usr=0.18%, sys=2.48%, ctx=4806, 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=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=181133: Mon Mar 16 15:10:48 2026 read: IOPS=62, BW=249KiB/s (255kB/s)(5060KiB/20314msec) slat (usec): min=1067, max=9229, avg=2699.02, stdev=1046.40 clat (msec): min=10, max=147, avg=81.50, stdev=16.21 lat (msec): min=13, max=150, avg=84.20, stdev=16.42 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 64], 20.00th=[ 69], | 30.00th=[ 74], 40.00th=[ 79], 50.00th=[ 82], 60.00th=[ 84], | 70.00th=[ 88], 80.00th=[ 94], 90.00th=[ 101], 95.00th=[ 109], | 99.00th=[ 130], 99.50th=[ 138], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 152, max= 328, per=25.36%, avg=250.03, stdev=48.01, samples=40 iops : min= 38, max= 82, avg=62.45, stdev=11.98, samples=40 write: IOPS=63, BW=255KiB/s (261kB/s)(5180KiB/20314msec); 0 zone resets slat (usec): min=55, max=2812, avg=198.43, stdev=122.56 clat (msec): min=28, max=312, avg=167.98, stdev=38.98 lat (msec): min=28, max=312, avg=168.18, stdev=38.98 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 151, max= 328, per=24.75%, avg=254.17, stdev=35.02, samples=40 iops : min= 37, max= 82, avg=63.48, stdev= 8.82, samples=40 lat (msec) : 20=0.31%, 50=0.43%, 100=44.77%, 250=53.40%, 500=1.09% cpu : usr=0.23%, sys=2.43%, ctx=4837, 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=987KiB/s (1010kB/s), 245KiB/s-249KiB/s (251kB/s-255kB/s), io=19.6MiB (20.5MB), run=20287-20340msec WRITE: bw=1027KiB/s (1052kB/s), 255KiB/s-259KiB/s (261kB/s-266kB/s), io=20.4MiB (21.4MB), run=20287-20340msec 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=181139: Mon Mar 16 15:10:51 2026 read: IOPS=7, BW=292MiB/s (306MB/s)(40.0MiB/137msec) slat (nsec): min=13186k, max=13186k, avg=13185676.00, stdev= 0.00 clat (nsec): min=118353k, max=118353k, avg=118352833.00, stdev= 0.00 lat (nsec): min=131543k, max=131543k, avg=131542685.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 118], 40.00th=[ 118], 50.00th=[ 118], 60.00th=[ 118], | 70.00th=[ 118], 80.00th=[ 118], 90.00th=[ 118], 95.00th=[ 118], | 99.00th=[ 118], 99.50th=[ 118], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.35%, ctx=42, 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=292MiB/s (306MB/s), 292MiB/s-292MiB/s (306MB/s-306MB/s), io=40.0MiB (41.9MB), run=137-137msec 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