== sanity test 398c: run fio to test AIO ================= 16:52:10 (1780087930) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.141208 s, 297 MB/s osc.lustre-OST0000-osc-ffff9e745be7d000.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=152861: Fri May 29 16:52:41 2026 write: IOPS=93, BW=373KiB/s (381kB/s)(10.0MiB/27486msec); 0 zone resets slat (usec): min=35, max=801, avg=203.13, stdev=96.97 clat (msec): min=35, max=309, avg=171.48, stdev=31.36 lat (msec): min=36, max=309, avg=171.68, stdev=31.37 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 117], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 174], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 197], 90.00th=[ 207], 95.00th=[ 218], | 99.00th=[ 239], 99.50th=[ 251], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 296, max= 621, per=24.99%, avg=371.80, stdev=47.29, samples=54 iops : min= 74, max= 155, avg=92.94, stdev=11.80, samples=54 lat (msec) : 50=0.62%, 100=2.11%, 250=96.76%, 500=0.51% cpu : usr=0.19%, sys=1.47%, ctx=2769, 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=152862: Fri May 29 16:52:41 2026 write: IOPS=93, BW=372KiB/s (381kB/s)(10.0MiB/27509msec); 0 zone resets slat (usec): min=35, max=1422, avg=202.36, stdev=96.62 clat (msec): min=65, max=285, avg=171.56, stdev=28.95 lat (msec): min=65, max=285, avg=171.77, stdev=28.97 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 122], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 159], 40.00th=[ 165], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 197], 90.00th=[ 207], 95.00th=[ 218], | 99.00th=[ 236], 99.50th=[ 241], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 284] bw ( KiB/s): min= 280, max= 621, per=24.95%, avg=371.20, stdev=52.60, samples=54 iops : min= 70, max= 155, avg=92.80, stdev=13.13, samples=54 lat (msec) : 100=2.54%, 250=97.07%, 500=0.39% cpu : usr=0.18%, sys=1.49%, ctx=2761, 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=152863: Fri May 29 16:52:41 2026 write: IOPS=93, BW=373KiB/s (381kB/s)(10.0MiB/27486msec); 0 zone resets slat (usec): min=36, max=702, avg=199.34, stdev=91.51 clat (msec): min=48, max=298, avg=171.44, stdev=30.03 lat (msec): min=48, max=298, avg=171.64, stdev=30.04 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 122], 10.00th=[ 140], 20.00th=[ 150], | 30.00th=[ 159], 40.00th=[ 165], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 197], 90.00th=[ 207], 95.00th=[ 218], | 99.00th=[ 236], 99.50th=[ 249], 99.90th=[ 292], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 272, max= 621, per=24.98%, avg=371.65, stdev=51.28, samples=54 iops : min= 68, max= 155, avg=92.91, stdev=12.80, samples=54 lat (msec) : 50=0.62%, 100=2.07%, 250=96.88%, 500=0.43% cpu : usr=0.13%, sys=1.54%, ctx=2808, 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=152864: Fri May 29 16:52:41 2026 write: IOPS=93, BW=372KiB/s (381kB/s)(10.0MiB/27509msec); 0 zone resets slat (usec): min=42, max=1043, avg=213.51, stdev=92.90 clat (msec): min=23, max=272, avg=171.54, stdev=29.26 lat (msec): min=23, max=273, avg=171.75, stdev=29.26 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 122], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 159], 40.00th=[ 165], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 197], 90.00th=[ 207], 95.00th=[ 220], | 99.00th=[ 236], 99.50th=[ 243], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 275] bw ( KiB/s): min= 288, max= 582, per=24.92%, avg=370.78, stdev=44.87, samples=54 iops : min= 72, max= 145, avg=92.69, stdev=11.17, samples=54 lat (msec) : 50=0.08%, 100=1.76%, 250=97.81%, 500=0.35% cpu : usr=0.17%, sys=1.58%, ctx=2879, 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 Run status group 0 (all jobs): WRITE: bw=1489KiB/s (1525kB/s), 372KiB/s-373KiB/s (381kB/s-381kB/s), io=40.0MiB (41.9MB), run=27486-27509msec 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=152877: Fri May 29 16:53:02 2026 read: IOPS=68, BW=275KiB/s (281kB/s)(5048KiB/18384msec) slat (usec): min=33, max=8192, avg=2271.48, stdev=795.24 clat (msec): min=3, max=149, avg=73.66, stdev=13.36 lat (msec): min=5, max=151, avg=75.93, stdev=13.48 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 54], 10.00th=[ 58], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 77], | 70.00th=[ 81], 80.00th=[ 84], 90.00th=[ 89], 95.00th=[ 94], | 99.00th=[ 110], 99.50th=[ 126], 99.90th=[ 138], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 144, max= 384, per=25.25%, avg=274.69, stdev=55.10, samples=36 iops : min= 36, max= 96, avg=68.67, stdev=13.77, samples=36 write: IOPS=70, BW=282KiB/s (289kB/s)(5192KiB/18384msec); 0 zone resets slat (usec): min=35, max=772, avg=175.90, stdev=86.94 clat (msec): min=38, max=295, avg=152.40, stdev=34.69 lat (msec): min=38, max=295, avg=152.58, stdev=34.70 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 100], 10.00th=[ 110], 20.00th=[ 124], | 30.00th=[ 134], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 167], 80.00th=[ 178], 90.00th=[ 192], 95.00th=[ 211], | 99.00th=[ 253], 99.50th=[ 262], 99.90th=[ 288], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 208, max= 360, per=24.93%, avg=282.42, stdev=32.94, samples=36 iops : min= 52, max= 90, avg=70.58, stdev= 8.23, samples=36 lat (msec) : 4=0.04%, 20=0.12%, 50=1.37%, 100=49.41%, 250=48.36% lat (msec) : 500=0.70% cpu : usr=0.21%, sys=2.23%, ctx=4786, 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=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=152878: Fri May 29 16:53:02 2026 read: IOPS=67, BW=270KiB/s (276kB/s)(4976KiB/18432msec) slat (usec): min=919, max=8136, avg=2287.91, stdev=758.75 clat (usec): min=1881, max=131833, avg=73198.31, stdev=14499.99 lat (msec): min=3, max=134, avg=75.49, stdev=14.58 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 63], | 30.00th=[ 66], 40.00th=[ 70], 50.00th=[ 73], 60.00th=[ 77], | 70.00th=[ 80], 80.00th=[ 85], 90.00th=[ 90], 95.00th=[ 99], | 99.00th=[ 114], 99.50th=[ 118], 99.90th=[ 130], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 192, max= 368, per=24.74%, avg=269.14, stdev=50.55, samples=36 iops : min= 48, max= 92, avg=67.28, stdev=12.64, samples=36 write: IOPS=71, BW=286KiB/s (292kB/s)(5264KiB/18432msec); 0 zone resets slat (usec): min=54, max=1473, avg=175.86, stdev=92.98 clat (msec): min=59, max=290, avg=152.04, stdev=33.75 lat (msec): min=59, max=290, avg=152.22, stdev=33.75 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 99], 10.00th=[ 109], 20.00th=[ 125], | 30.00th=[ 134], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 167], 80.00th=[ 176], 90.00th=[ 194], 95.00th=[ 211], | 99.00th=[ 257], 99.50th=[ 259], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 230, max= 368, per=25.08%, avg=284.17, stdev=31.26, samples=36 iops : min= 57, max= 92, avg=71.03, stdev= 7.84, samples=36 lat (msec) : 2=0.04%, 4=0.08%, 20=0.23%, 50=1.25%, 100=48.48% lat (msec) : 250=49.18%, 500=0.74% cpu : usr=0.21%, sys=2.25%, ctx=4737, 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=152879: Fri May 29 16:53:02 2026 read: IOPS=67, BW=270KiB/s (277kB/s)(4984KiB/18432msec) slat (usec): min=919, max=8118, avg=2299.23, stdev=766.44 clat (msec): min=5, max=123, avg=73.03, stdev=13.62 lat (msec): min=7, max=128, avg=75.33, stdev=13.72 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 57], 20.00th=[ 63], | 30.00th=[ 67], 40.00th=[ 70], 50.00th=[ 73], 60.00th=[ 78], | 70.00th=[ 80], 80.00th=[ 84], 90.00th=[ 89], 95.00th=[ 94], | 99.00th=[ 107], 99.50th=[ 112], 99.90th=[ 122], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 144, max= 384, per=24.89%, avg=270.81, stdev=57.96, samples=36 iops : min= 36, max= 96, avg=67.69, stdev=14.49, samples=36 write: IOPS=71, BW=285KiB/s (292kB/s)(5256KiB/18432msec); 0 zone resets slat (usec): min=39, max=1975, avg=179.13, stdev=96.71 clat (msec): min=39, max=300, avg=152.43, stdev=34.30 lat (msec): min=39, max=300, avg=152.61, stdev=34.31 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 97], 10.00th=[ 111], 20.00th=[ 127], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 161], | 70.00th=[ 167], 80.00th=[ 176], 90.00th=[ 190], 95.00th=[ 211], | 99.00th=[ 255], 99.50th=[ 271], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 200, max= 376, per=24.98%, avg=283.00, stdev=35.73, samples=36 iops : min= 50, max= 94, avg=70.75, stdev= 8.93, samples=36 lat (msec) : 10=0.04%, 20=0.35%, 50=1.21%, 100=48.83%, 250=48.87% lat (msec) : 500=0.70% cpu : usr=0.18%, sys=2.31%, ctx=4820, 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=152880: Fri May 29 16:53:02 2026 read: IOPS=68, BW=275KiB/s (281kB/s)(5060KiB/18410msec) slat (usec): min=959, max=7191, avg=2254.67, stdev=740.80 clat (msec): min=7, max=158, avg=72.96, stdev=14.15 lat (msec): min=10, max=160, avg=75.22, stdev=14.25 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 63], | 30.00th=[ 67], 40.00th=[ 70], 50.00th=[ 73], 60.00th=[ 77], | 70.00th=[ 80], 80.00th=[ 83], 90.00th=[ 89], 95.00th=[ 96], | 99.00th=[ 112], 99.50th=[ 118], 99.90th=[ 128], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 176, max= 384, per=25.43%, avg=276.72, stdev=48.77, samples=36 iops : min= 44, max= 96, avg=69.17, stdev=12.20, samples=36 write: IOPS=70, BW=281KiB/s (288kB/s)(5180KiB/18410msec); 0 zone resets slat (usec): min=53, max=798, avg=176.06, stdev=83.84 clat (msec): min=52, max=306, avg=153.26, stdev=35.15 lat (msec): min=52, max=306, avg=153.43, stdev=35.16 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 97], 10.00th=[ 111], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 167], 80.00th=[ 176], 90.00th=[ 192], 95.00th=[ 213], | 99.00th=[ 264], 99.50th=[ 268], 99.90th=[ 279], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 240, max= 384, per=24.81%, avg=281.08, stdev=29.47, samples=36 iops : min= 60, max= 96, avg=70.25, stdev= 7.39, samples=36 lat (msec) : 10=0.04%, 20=0.43%, 50=1.25%, 100=49.49%, 250=47.93% lat (msec) : 500=0.86% cpu : usr=0.20%, sys=2.27%, ctx=4736, 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=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=1089KiB/s (1115kB/s), 270KiB/s-275KiB/s (276kB/s-281kB/s), io=19.6MiB (20.5MB), run=18384-18432msec WRITE: bw=1133KiB/s (1161kB/s), 281KiB/s-286KiB/s (288kB/s-292kB/s), io=20.4MiB (21.4MB), run=18384-18432msec 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=152887: Fri May 29 16:53:06 2026 read: IOPS=8, BW=320MiB/s (336MB/s)(40.0MiB/125msec) slat (nsec): min=11643k, max=11643k, avg=11643355.00, stdev= 0.00 clat (nsec): min=108546k, max=108546k, avg=108545607.00, stdev= 0.00 lat (nsec): min=120194k, max=120194k, avg=120193973.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 109], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 109], 60.00th=[ 109], | 70.00th=[ 109], 80.00th=[ 109], 90.00th=[ 109], 95.00th=[ 109], | 99.00th=[ 109], 99.50th=[ 109], 99.90th=[ 109], 99.95th=[ 109], | 99.99th=[ 109] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.26%, ctx=35, 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=320MiB/s (336MB/s), 320MiB/s-320MiB/s (336MB/s-336MB/s), io=40.0MiB (41.9MB), run=125-125msec 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