== sanity test 398c: run fio to test AIO ================= 11:50:05 (1786204205) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.179842 s, 233 MB/s osc.lustre-OST0000-osc-ffff92db5060d000.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=161124: Sat Aug 8 11:50:51 2026 write: IOPS=60, BW=242KiB/s (248kB/s)(10.0MiB/42241msec); 0 zone resets slat (usec): min=41, max=1408, avg=291.43, stdev=180.71 clat (msec): min=16, max=543, avg=263.60, stdev=94.48 lat (msec): min=16, max=543, avg=263.89, stdev=94.57 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 142], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 215], 50.00th=[ 241], 60.00th=[ 271], | 70.00th=[ 317], 80.00th=[ 359], 90.00th=[ 405], 95.00th=[ 435], | 99.00th=[ 477], 99.50th=[ 489], 99.90th=[ 535], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 120, max= 535, per=24.90%, avg=240.75, stdev=84.09, samples=84 iops : min= 30, max= 133, avg=60.18, stdev=20.99, samples=84 lat (msec) : 20=0.04%, 50=0.04%, 100=1.29%, 250=51.84%, 500=46.60% lat (msec) : 750=0.20% cpu : usr=0.09%, sys=1.40%, ctx=2768, 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=161125: Sat Aug 8 11:50:51 2026 write: IOPS=60, BW=242KiB/s (248kB/s)(10.0MiB/42275msec); 0 zone resets slat (usec): min=47, max=1164, avg=307.06, stdev=180.69 clat (msec): min=16, max=544, avg=263.66, stdev=94.09 lat (msec): min=16, max=544, avg=263.97, stdev=94.18 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 142], 10.00th=[ 167], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 215], 50.00th=[ 241], 60.00th=[ 271], | 70.00th=[ 317], 80.00th=[ 355], 90.00th=[ 405], 95.00th=[ 435], | 99.00th=[ 477], 99.50th=[ 493], 99.90th=[ 535], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 112, max= 535, per=24.90%, avg=240.75, stdev=83.19, samples=84 iops : min= 28, max= 133, avg=60.18, stdev=20.77, samples=84 lat (msec) : 20=0.04%, 100=1.37%, 250=52.03%, 500=46.29%, 750=0.27% cpu : usr=0.13%, sys=1.45%, ctx=2815, 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=161126: Sat Aug 8 11:50:51 2026 write: IOPS=60, BW=242KiB/s (248kB/s)(10.0MiB/42345msec); 0 zone resets slat (usec): min=49, max=3578, avg=296.27, stdev=194.97 clat (msec): min=81, max=538, avg=264.10, stdev=93.25 lat (msec): min=81, max=538, avg=264.39, stdev=93.33 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 146], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 215], 50.00th=[ 241], 60.00th=[ 279], | 70.00th=[ 317], 80.00th=[ 355], 90.00th=[ 405], 95.00th=[ 435], | 99.00th=[ 477], 99.50th=[ 489], 99.90th=[ 527], 99.95th=[ 535], | 99.99th=[ 542] bw ( KiB/s): min= 120, max= 510, per=24.87%, avg=240.45, stdev=83.35, samples=84 iops : min= 30, max= 127, avg=60.11, stdev=20.82, samples=84 lat (msec) : 100=0.74%, 250=52.97%, 500=46.05%, 750=0.23% cpu : usr=0.11%, sys=1.39%, ctx=2850, 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=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=161127: Sat Aug 8 11:50:51 2026 write: IOPS=60, BW=242KiB/s (248kB/s)(10.0MiB/42353msec); 0 zone resets slat (usec): min=44, max=2835, avg=296.98, stdev=194.95 clat (msec): min=47, max=544, avg=264.04, stdev=93.45 lat (msec): min=47, max=544, avg=264.34, stdev=93.53 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 146], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 215], 50.00th=[ 241], 60.00th=[ 275], | 70.00th=[ 317], 80.00th=[ 355], 90.00th=[ 405], 95.00th=[ 430], | 99.00th=[ 477], 99.50th=[ 489], 99.90th=[ 514], 99.95th=[ 527], | 99.99th=[ 542] bw ( KiB/s): min= 112, max= 510, per=24.85%, avg=240.26, stdev=83.24, samples=84 iops : min= 28, max= 127, avg=60.06, stdev=20.79, samples=84 lat (msec) : 50=0.08%, 100=0.70%, 250=52.66%, 500=46.33%, 750=0.23% cpu : usr=0.14%, sys=1.37%, ctx=2855, 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=967KiB/s (990kB/s), 242KiB/s-242KiB/s (248kB/s-248kB/s), io=40.0MiB (41.9MB), run=42241-42353msec 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=161143: Sat Aug 8 11:51:14 2026 read: IOPS=67, BW=269KiB/s (275kB/s)(5048KiB/18773msec) slat (usec): min=125, max=10171, avg=2382.45, stdev=869.39 clat (msec): min=3, max=215, avg=73.68, stdev=15.19 lat (msec): min=5, max=217, avg=76.06, stdev=15.23 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 54], 10.00th=[ 59], 20.00th=[ 65], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 73], 60.00th=[ 78], | 70.00th=[ 82], 80.00th=[ 85], 90.00th=[ 89], 95.00th=[ 92], | 99.00th=[ 102], 99.50th=[ 138], 99.90th=[ 203], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 200, max= 392, per=25.39%, avg=269.41, stdev=49.75, samples=37 iops : min= 50, max= 98, avg=67.35, stdev=12.44, samples=37 write: IOPS=69, BW=277KiB/s (283kB/s)(5192KiB/18773msec); 0 zone resets slat (usec): min=60, max=2060, avg=190.44, stdev=114.23 clat (msec): min=34, max=285, avg=156.97, stdev=32.27 lat (msec): min=34, max=285, avg=157.16, stdev=32.27 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 209], | 99.00th=[ 234], 99.50th=[ 239], 99.90th=[ 259], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 192, max= 336, per=25.06%, avg=276.92, stdev=31.43, samples=37 iops : min= 48, max= 84, avg=69.22, stdev= 7.85, samples=37 lat (msec) : 4=0.08%, 10=0.23%, 20=0.23%, 50=0.94%, 100=48.52% lat (msec) : 250=49.88%, 500=0.12% cpu : usr=0.23%, sys=2.35%, ctx=4896, 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=161144: Sat Aug 8 11:51:14 2026 read: IOPS=65, BW=264KiB/s (270kB/s)(4976KiB/18852msec) slat (usec): min=1037, max=8002, avg=2382.89, stdev=792.29 clat (msec): min=7, max=178, avg=73.87, stdev=13.87 lat (msec): min=9, max=179, avg=76.25, stdev=13.94 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 55], 10.00th=[ 58], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 81], 80.00th=[ 85], 90.00th=[ 89], 95.00th=[ 93], | 99.00th=[ 106], 99.50th=[ 117], 99.90th=[ 178], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 168, max= 384, per=24.88%, avg=263.95, stdev=48.85, samples=37 iops : min= 42, max= 96, avg=65.97, stdev=12.21, samples=37 write: IOPS=69, BW=279KiB/s (286kB/s)(5264KiB/18852msec); 0 zone resets slat (usec): min=59, max=822, avg=187.27, stdev=96.32 clat (msec): min=50, max=251, avg=156.20, stdev=30.93 lat (msec): min=50, max=251, avg=156.39, stdev=30.93 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 106], 10.00th=[ 117], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 182], 90.00th=[ 197], 95.00th=[ 207], | 99.00th=[ 224], 99.50th=[ 228], 99.90th=[ 239], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 216, max= 360, per=25.32%, avg=279.81, stdev=32.71, samples=37 iops : min= 54, max= 90, avg=69.95, stdev= 8.19, samples=37 lat (msec) : 10=0.04%, 20=0.27%, 50=0.66%, 100=48.71%, 250=50.27% lat (msec) : 500=0.04% cpu : usr=0.21%, sys=2.34%, ctx=4966, 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=161145: Sat Aug 8 11:51:14 2026 read: IOPS=65, BW=264KiB/s (270kB/s)(4984KiB/18899msec) slat (usec): min=1062, max=8147, avg=2388.25, stdev=802.45 clat (msec): min=3, max=113, avg=73.89, stdev=12.41 lat (msec): min=5, max=115, avg=76.28, stdev=12.47 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 65], | 30.00th=[ 69], 40.00th=[ 72], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 81], 80.00th=[ 84], 90.00th=[ 88], 95.00th=[ 93], | 99.00th=[ 101], 99.50th=[ 104], 99.90th=[ 110], 99.95th=[ 114], | 99.99th=[ 114] bw ( KiB/s): min= 160, max= 376, per=24.73%, avg=262.43, stdev=55.23, samples=37 iops : min= 40, max= 94, avg=65.59, stdev=13.82, samples=37 write: IOPS=69, BW=278KiB/s (285kB/s)(5256KiB/18899msec); 0 zone resets slat (usec): min=52, max=1282, avg=190.69, stdev=104.89 clat (msec): min=20, max=245, avg=156.65, stdev=33.10 lat (msec): min=20, max=245, avg=156.84, stdev=33.10 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 107], 10.00th=[ 117], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 209], | 99.00th=[ 226], 99.50th=[ 236], 99.90th=[ 241], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 208, max= 336, per=24.80%, avg=274.05, stdev=31.83, samples=37 iops : min= 52, max= 84, avg=68.51, stdev= 7.96, samples=37 lat (msec) : 4=0.08%, 10=0.12%, 20=0.16%, 50=1.09%, 100=48.52% lat (msec) : 250=50.04% cpu : usr=0.18%, sys=2.37%, ctx=4944, 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=161146: Sat Aug 8 11:51:14 2026 read: IOPS=67, BW=269KiB/s (275kB/s)(5060KiB/18840msec) slat (usec): min=1022, max=6885, avg=2369.32, stdev=794.67 clat (msec): min=3, max=180, avg=74.21, stdev=12.92 lat (msec): min=5, max=184, avg=76.58, stdev=13.00 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 60], 20.00th=[ 65], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 81], 80.00th=[ 85], 90.00th=[ 89], 95.00th=[ 93], | 99.00th=[ 101], 99.50th=[ 104], 99.90th=[ 169], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 192, max= 384, per=25.47%, avg=270.27, stdev=48.19, samples=37 iops : min= 48, max= 96, avg=67.57, stdev=12.05, samples=37 write: IOPS=68, BW=275KiB/s (282kB/s)(5180KiB/18840msec); 0 zone resets slat (usec): min=53, max=1234, avg=188.31, stdev=102.74 clat (msec): min=71, max=256, avg=156.90, stdev=32.05 lat (msec): min=71, max=256, avg=157.09, stdev=32.05 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 106], 10.00th=[ 116], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 209], | 99.00th=[ 234], 99.50th=[ 239], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 216, max= 352, per=24.88%, avg=274.92, stdev=33.66, samples=37 iops : min= 54, max= 88, avg=68.73, stdev= 8.42, samples=37 lat (msec) : 4=0.04%, 10=0.08%, 20=0.12%, 50=0.62%, 100=49.88% lat (msec) : 250=49.18%, 500=0.08% cpu : usr=0.12%, sys=2.45%, ctx=4884, 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=1062KiB/s (1087kB/s), 264KiB/s-269KiB/s (270kB/s-275kB/s), io=19.6MiB (20.5MB), run=18773-18899msec WRITE: bw=1105KiB/s (1132kB/s), 275KiB/s-279KiB/s (282kB/s-286kB/s), io=20.4MiB (21.4MB), run=18773-18899msec 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=161152: Sat Aug 8 11:51:17 2026 read: IOPS=7, BW=294MiB/s (308MB/s)(40.0MiB/136msec) slat (nsec): min=9951.0k, max=9951.0k, avg=9951984.00, stdev= 0.00 clat (nsec): min=119285k, max=119285k, avg=119284735.00, stdev= 0.00 lat (nsec): min=129239k, max=129239k, avg=129239134.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 120], 60.00th=[ 120], | 70.00th=[ 120], 80.00th=[ 120], 90.00th=[ 120], 95.00th=[ 120], | 99.00th=[ 120], 99.50th=[ 120], 99.90th=[ 120], 99.95th=[ 120], | 99.99th=[ 120] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.41%, ctx=16, majf=0, minf=10 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=294MiB/s (308MB/s), 294MiB/s-294MiB/s (308MB/s-308MB/s), io=40.0MiB (41.9MB), run=136-136msec 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