== sanity test 398c: run fio to test AIO ================= 00:34:01 (1787373241) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.362521 s, 116 MB/s osc.lustre-OST0000-osc-ffff928908e58800.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=180381: Sat Aug 22 00:34:43 2026 write: IOPS=84, BW=337KiB/s (346kB/s)(10.0MiB/30345msec); 0 zone resets slat (usec): min=28, max=26018, avg=202.64, stdev=815.98 clat (msec): min=18, max=356, avg=188.58, stdev=50.59 lat (msec): min=19, max=356, avg=188.78, stdev=50.58 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 105], 10.00th=[ 125], 20.00th=[ 148], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 313], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 214, max= 507, per=24.99%, avg=336.92, stdev=69.46, samples=60 iops : min= 53, max= 126, avg=83.82, stdev=17.40, samples=60 lat (msec) : 20=0.04%, 50=0.04%, 100=3.71%, 250=83.98%, 500=12.23% cpu : usr=0.15%, sys=0.82%, ctx=2509, 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=180382: Sat Aug 22 00:34:43 2026 write: IOPS=84, BW=337KiB/s (345kB/s)(10.0MiB/30368msec); 0 zone resets slat (usec): min=24, max=13133, avg=207.43, stdev=716.57 clat (msec): min=12, max=322, avg=188.64, stdev=51.18 lat (msec): min=13, max=323, avg=188.84, stdev=51.18 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 108], 10.00th=[ 125], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 239, max= 515, per=24.86%, avg=335.10, stdev=64.63, samples=60 iops : min= 59, max= 128, avg=83.35, stdev=16.17, samples=60 lat (msec) : 20=0.04%, 50=0.04%, 100=3.95%, 250=83.09%, 500=12.89% cpu : usr=0.19%, sys=0.83%, ctx=2625, 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=180383: Sat Aug 22 00:34:43 2026 write: IOPS=84, BW=337KiB/s (345kB/s)(10.0MiB/30371msec); 0 zone resets slat (usec): min=22, max=22911, avg=164.53, stdev=660.92 clat (msec): min=34, max=314, avg=188.81, stdev=48.81 lat (msec): min=34, max=314, avg=188.98, stdev=48.82 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 104], 10.00th=[ 127], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 234], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 296], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 317] bw ( KiB/s): min= 135, max= 510, per=24.92%, avg=335.97, stdev=78.09, samples=60 iops : min= 33, max= 127, avg=83.57, stdev=19.53, samples=60 lat (msec) : 50=0.04%, 100=4.53%, 250=83.20%, 500=12.23% cpu : usr=0.14%, sys=0.74%, ctx=1887, 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=180384: Sat Aug 22 00:34:43 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30229msec); 0 zone resets slat (usec): min=29, max=16225, avg=237.90, stdev=843.29 clat (msec): min=12, max=356, avg=188.53, stdev=52.18 lat (msec): min=12, max=356, avg=188.77, stdev=52.18 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 104], 10.00th=[ 123], 20.00th=[ 144], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 259], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 330], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 231, max= 666, per=24.97%, avg=336.62, stdev=76.65, samples=60 iops : min= 57, max= 166, avg=83.75, stdev=19.19, samples=60 lat (msec) : 20=0.08%, 50=0.27%, 100=2.93%, 250=84.26%, 500=12.46% cpu : usr=0.15%, sys=0.89%, ctx=3017, 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=1349KiB/s (1381kB/s), 337KiB/s-339KiB/s (345kB/s-347kB/s), io=40.0MiB (41.9MB), run=30229-30371msec 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=180399: Sat Aug 22 00:35:23 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5048KiB/30919msec) slat (usec): min=2673, max=56914, avg=13751.03, stdev=7800.37 clat (msec): min=48, max=400, avg=182.60, stdev=46.48 lat (msec): min=59, max=416, avg=196.36, stdev=48.13 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 117], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 224], 90.00th=[ 245], 95.00th=[ 259], | 99.00th=[ 313], 99.50th=[ 321], 99.90th=[ 388], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 95, max= 262, per=24.96%, avg=161.75, stdev=35.79, samples=60 iops : min= 23, max= 65, avg=39.98, stdev= 8.96, samples=60 write: IOPS=41, BW=168KiB/s (172kB/s)(5192KiB/30919msec); 0 zone resets slat (usec): min=30, max=13400, avg=229.63, stdev=763.49 clat (msec): min=31, max=386, avg=187.34, stdev=44.14 lat (msec): min=31, max=387, avg=187.58, stdev=44.16 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 122], 10.00th=[ 133], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 305], 99.50th=[ 342], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 102, max= 272, per=24.76%, avg=167.13, stdev=35.18, samples=60 iops : min= 25, max= 68, avg=41.32, stdev= 8.89, samples=60 lat (msec) : 50=0.08%, 100=1.29%, 250=90.82%, 500=7.81% cpu : usr=0.20%, sys=1.68%, ctx=3965, 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=180400: Sat Aug 22 00:35:23 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(4976KiB/30747msec) slat (usec): min=37, max=54433, avg=13758.10, stdev=7656.55 clat (msec): min=31, max=374, avg=182.03, stdev=45.60 lat (msec): min=31, max=381, avg=195.79, stdev=47.37 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 116], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 351], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 87, max= 247, per=24.76%, avg=160.45, stdev=36.30, samples=60 iops : min= 21, max= 61, avg=39.65, stdev= 9.14, samples=60 write: IOPS=42, BW=171KiB/s (175kB/s)(5264KiB/30747msec); 0 zone resets slat (usec): min=35, max=18477, avg=236.28, stdev=853.90 clat (msec): min=29, max=349, avg=187.84, stdev=42.95 lat (msec): min=29, max=349, avg=188.07, stdev=42.96 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 245], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 330], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 87, max= 278, per=25.31%, avg=170.82, stdev=39.58, samples=60 iops : min= 21, max= 69, avg=42.27, stdev= 9.94, samples=60 lat (msec) : 50=0.27%, 100=1.21%, 250=90.74%, 500=7.77% cpu : usr=0.27%, sys=1.71%, ctx=3769, 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=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=180401: Sat Aug 22 00:35:23 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4984KiB/30923msec) slat (usec): min=2625, max=68036, avg=13944.89, stdev=8354.58 clat (msec): min=39, max=370, avg=180.56, stdev=44.50 lat (msec): min=41, max=385, avg=194.51, stdev=46.70 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 113], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 78, max= 286, per=24.78%, avg=160.60, stdev=42.20, samples=60 iops : min= 19, max= 71, avg=39.68, stdev=10.63, samples=60 write: IOPS=42, BW=170KiB/s (174kB/s)(5256KiB/30923msec); 0 zone resets slat (usec): min=33, max=15491, avg=214.56, stdev=736.02 clat (msec): min=62, max=353, avg=189.51, stdev=43.17 lat (msec): min=62, max=353, avg=189.73, stdev=43.15 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 266], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 334], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 95, max= 248, per=24.94%, avg=168.32, stdev=35.42, samples=60 iops : min= 23, max= 62, avg=41.62, stdev= 8.93, samples=60 lat (msec) : 50=0.04%, 100=1.21%, 250=90.47%, 500=8.28% cpu : usr=0.27%, sys=1.68%, ctx=3870, 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=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=180402: Sat Aug 22 00:35:23 2026 read: IOPS=40, BW=164KiB/s (168kB/s)(5060KiB/30915msec) slat (usec): min=3209, max=69759, avg=13765.78, stdev=8227.10 clat (msec): min=21, max=360, avg=183.13, stdev=46.59 lat (msec): min=45, max=377, avg=196.91, stdev=48.37 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 116], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 247], 95.00th=[ 264], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 351], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 94, max= 254, per=25.08%, avg=162.55, stdev=36.26, samples=60 iops : min= 23, max= 63, avg=40.18, stdev= 9.16, samples=60 write: IOPS=41, BW=168KiB/s (172kB/s)(5180KiB/30915msec); 0 zone resets slat (usec): min=31, max=13644, avg=257.47, stdev=900.98 clat (msec): min=24, max=371, avg=186.97, stdev=44.27 lat (msec): min=25, max=371, avg=187.23, stdev=44.28 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 123], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 264], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 368], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 79, max= 264, per=24.60%, avg=166.08, stdev=39.30, samples=60 iops : min= 19, max= 66, avg=41.05, stdev= 9.88, samples=60 lat (msec) : 50=0.16%, 100=1.05%, 250=90.08%, 500=8.71% cpu : usr=0.25%, sys=1.66%, ctx=3615, 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=649KiB/s (665kB/s), 161KiB/s-164KiB/s (165kB/s-168kB/s), io=19.6MiB (20.5MB), run=30747-30923msec WRITE: bw=676KiB/s (692kB/s), 168KiB/s-171KiB/s (172kB/s-175kB/s), io=20.4MiB (21.4MB), run=30747-30923msec 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=180419: Sat Aug 22 00:35:34 2026 read: IOPS=2, BW=84.4MiB/s (88.5MB/s)(40.0MiB/474msec) slat (nsec): min=42107k, max=42107k, avg=42107407.00, stdev= 0.00 clat (nsec): min=397005k, max=397005k, avg=397005479.00, stdev= 0.00 lat (nsec): min=439118k, max=439118k, avg=439118052.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.54%, ctx=6, majf=0, minf=7 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=84.4MiB/s (88.5MB/s), 84.4MiB/s-84.4MiB/s (88.5MB/s-88.5MB/s), io=40.0MiB (41.9MB), run=474-474msec 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