== sanity test 398c: run fio to test AIO ================= 11:52:56 (1789141976) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.386384 s, 109 MB/s osc.lustre-OST0000-osc-ffff9e71896f3800.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=181609: Fri Sep 11 11:53:31 2026 write: IOPS=101, BW=406KiB/s (416kB/s)(10.0MiB/25201msec); 0 zone resets slat (usec): min=28, max=15545, avg=219.49, stdev=701.22 clat (msec): min=21, max=242, avg=156.62, stdev=29.76 lat (msec): min=22, max=242, avg=156.84, stdev=29.75 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 111], 10.00th=[ 120], 20.00th=[ 134], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 182], 90.00th=[ 199], 95.00th=[ 209], | 99.00th=[ 224], 99.50th=[ 234], 99.90th=[ 239], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 300, max= 512, per=24.90%, avg=404.66, stdev=52.84, samples=50 iops : min= 75, max= 128, avg=100.84, stdev=13.15, samples=50 lat (msec) : 50=0.20%, 100=1.45%, 250=98.36% cpu : usr=0.17%, sys=1.12%, ctx=3071, 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=181610: Fri Sep 11 11:53:31 2026 write: IOPS=101, BW=406KiB/s (416kB/s)(10.0MiB/25205msec); 0 zone resets slat (usec): min=29, max=12752, avg=173.90, stdev=553.86 clat (msec): min=35, max=235, avg=156.75, stdev=29.25 lat (msec): min=35, max=235, avg=156.92, stdev=29.22 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 111], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 194], 95.00th=[ 209], | 99.00th=[ 222], 99.50th=[ 230], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 288, max= 510, per=24.90%, avg=404.62, stdev=55.09, samples=50 iops : min= 72, max= 127, avg=100.84, stdev=13.74, samples=50 lat (msec) : 50=0.04%, 100=1.56%, 250=98.40% cpu : usr=0.14%, sys=0.84%, ctx=2294, 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=181611: Fri Sep 11 11:53:31 2026 write: IOPS=101, BW=407KiB/s (417kB/s)(10.0MiB/25169msec); 0 zone resets slat (usec): min=29, max=27116, avg=198.28, stdev=762.14 clat (msec): min=26, max=256, avg=156.56, stdev=31.56 lat (msec): min=26, max=256, avg=156.76, stdev=31.56 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 112], 10.00th=[ 120], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 213], | 99.00th=[ 234], 99.50th=[ 239], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 280, max= 510, per=24.89%, avg=404.52, stdev=63.24, samples=50 iops : min= 70, max= 127, avg=100.80, stdev=15.72, samples=50 lat (msec) : 50=0.16%, 100=1.64%, 250=97.93%, 500=0.27% cpu : usr=0.12%, sys=0.94%, ctx=2807, 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=181612: Fri Sep 11 11:53:31 2026 write: IOPS=101, BW=408KiB/s (417kB/s)(10.0MiB/25122msec); 0 zone resets slat (usec): min=29, max=18387, avg=191.62, stdev=708.18 clat (msec): min=14, max=308, avg=156.65, stdev=30.95 lat (msec): min=14, max=308, avg=156.85, stdev=30.94 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 182], 90.00th=[ 194], 95.00th=[ 207], | 99.00th=[ 230], 99.50th=[ 243], 99.90th=[ 259], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 255, max= 567, per=25.08%, avg=407.53, stdev=62.11, samples=49 iops : min= 63, max= 141, avg=101.55, stdev=15.49, samples=49 lat (msec) : 20=0.08%, 50=0.16%, 100=2.23%, 250=97.27%, 500=0.27% cpu : usr=0.15%, sys=1.16%, ctx=2427, 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=1625KiB/s (1664kB/s), 406KiB/s-408KiB/s (416kB/s-417kB/s), io=40.0MiB (41.9MB), run=25122-25205msec 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=181626: Fri Sep 11 11:54:06 2026 read: IOPS=45, BW=183KiB/s (188kB/s)(5048KiB/27552msec) slat (usec): min=2646, max=71838, avg=11967.20, stdev=6537.34 clat (msec): min=13, max=304, avg=163.61, stdev=41.43 lat (msec): min=21, max=315, avg=175.58, stdev=43.00 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 102], 10.00th=[ 112], 20.00th=[ 126], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 234], | 99.00th=[ 266], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 111, max= 252, per=24.92%, avg=181.43, stdev=36.91, samples=54 iops : min= 27, max= 63, avg=44.96, stdev= 9.31, samples=54 write: IOPS=47, BW=188KiB/s (193kB/s)(5192KiB/27552msec); 0 zone resets slat (usec): min=31, max=15051, avg=217.29, stdev=772.00 clat (msec): min=38, max=317, avg=166.79, stdev=38.34 lat (msec): min=38, max=317, avg=167.01, stdev=38.31 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 109], 10.00th=[ 118], 20.00th=[ 133], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 110, max= 303, per=24.69%, avg=187.13, stdev=46.42, samples=54 iops : min= 27, max= 75, avg=46.39, stdev=11.65, samples=54 lat (msec) : 20=0.04%, 50=0.16%, 100=3.24%, 250=94.61%, 500=1.95% cpu : usr=0.21%, sys=1.81%, ctx=4420, 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=181627: Fri Sep 11 11:54:06 2026 read: IOPS=45, BW=181KiB/s (185kB/s)(4976KiB/27488msec) slat (usec): min=2603, max=71891, avg=11959.71, stdev=6607.64 clat (msec): min=11, max=323, avg=164.24, stdev=41.04 lat (msec): min=26, max=334, avg=176.21, stdev=42.66 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 104], 10.00th=[ 112], 20.00th=[ 127], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 268], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 119, max= 255, per=24.75%, avg=180.17, stdev=35.28, samples=54 iops : min= 29, max= 63, avg=44.67, stdev= 8.92, samples=54 write: IOPS=47, BW=192KiB/s (196kB/s)(5264KiB/27488msec); 0 zone resets slat (usec): min=33, max=11686, avg=199.43, stdev=618.47 clat (msec): min=76, max=295, avg=165.74, stdev=37.40 lat (msec): min=76, max=295, avg=165.94, stdev=37.39 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 107], 10.00th=[ 117], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 79, max= 288, per=25.22%, avg=191.17, stdev=48.15, samples=54 iops : min= 19, max= 72, avg=47.41, stdev=12.12, samples=54 lat (msec) : 20=0.04%, 100=2.70%, 250=95.08%, 500=2.19% cpu : usr=0.24%, sys=1.74%, ctx=4515, 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=181628: Fri Sep 11 11:54:06 2026 read: IOPS=45, BW=181KiB/s (186kB/s)(4984KiB/27494msec) slat (usec): min=2896, max=68694, avg=12127.41, stdev=6820.17 clat (msec): min=72, max=281, avg=162.26, stdev=40.39 lat (msec): min=78, max=294, avg=174.39, stdev=42.07 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 105], 10.00th=[ 113], 20.00th=[ 124], | 30.00th=[ 136], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 259], 99.50th=[ 264], 99.90th=[ 275], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 119, max= 304, per=24.80%, avg=180.56, stdev=41.38, samples=54 iops : min= 29, max= 76, avg=44.76, stdev=10.48, samples=54 write: IOPS=47, BW=191KiB/s (196kB/s)(5256KiB/27494msec); 0 zone resets slat (usec): min=35, max=14312, avg=231.05, stdev=828.57 clat (msec): min=40, max=288, avg=167.34, stdev=37.88 lat (msec): min=40, max=289, avg=167.58, stdev=37.91 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 109], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 264], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 87, max= 272, per=25.03%, avg=189.72, stdev=46.65, samples=54 iops : min= 21, max= 68, avg=47.06, stdev=11.69, samples=54 lat (msec) : 50=0.04%, 100=2.46%, 250=95.31%, 500=2.19% cpu : usr=0.26%, sys=1.76%, ctx=4657, 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=181629: Fri Sep 11 11:54:06 2026 read: IOPS=46, BW=185KiB/s (189kB/s)(5060KiB/27381msec) slat (usec): min=51, max=62172, avg=12052.02, stdev=6759.38 clat (msec): min=26, max=288, avg=161.99, stdev=40.59 lat (msec): min=26, max=313, avg=174.04, stdev=42.29 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 105], 10.00th=[ 114], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 232], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 80, max= 270, per=25.31%, avg=184.28, stdev=44.09, samples=54 iops : min= 20, max= 67, avg=45.69, stdev=11.07, samples=54 write: IOPS=47, BW=189KiB/s (194kB/s)(5180KiB/27381msec); 0 zone resets slat (usec): min=31, max=19712, avg=231.26, stdev=920.76 clat (msec): min=44, max=286, avg=167.55, stdev=39.18 lat (msec): min=44, max=286, avg=167.78, stdev=39.16 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 107], 10.00th=[ 117], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 236], | 99.00th=[ 268], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 119, max= 278, per=24.90%, avg=188.72, stdev=41.13, samples=54 iops : min= 29, max= 69, avg=46.80, stdev=10.39, samples=54 lat (msec) : 50=0.27%, 100=3.16%, 250=94.10%, 500=2.46% cpu : usr=0.24%, sys=1.66%, ctx=4511, 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=728KiB/s (746kB/s), 181KiB/s-185KiB/s (185kB/s-189kB/s), io=19.6MiB (20.5MB), run=27381-27552msec WRITE: bw=758KiB/s (776kB/s), 188KiB/s-192KiB/s (193kB/s-196kB/s), io=20.4MiB (21.4MB), run=27381-27552msec 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=181637: Fri Sep 11 11:54:16 2026 read: IOPS=2, BW=106MiB/s (111MB/s)(40.0MiB/377msec) slat (nsec): min=22461k, max=22461k, avg=22460620.00, stdev= 0.00 clat (nsec): min=332481k, max=332481k, avg=332481073.00, stdev= 0.00 lat (nsec): min=354946k, max=354946k, avg=354946035.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.46%, ctx=3, 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=106MiB/s (111MB/s), 106MiB/s-106MiB/s (111MB/s-111MB/s), io=40.0MiB (41.9MB), run=377-377msec 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