== sanity test 398c: run fio to test AIO ================= 20:56:08 (1788742568) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.287126 s, 146 MB/s osc.lustre-OST0000-osc-ffff8e20e5ec1800.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=192813: Sun Sep 6 20:56:44 2026 write: IOPS=89, BW=359KiB/s (367kB/s)(10.0MiB/28542msec); 0 zone resets slat (usec): min=25, max=41380, avg=205.36, stdev=1005.18 clat (msec): min=14, max=324, avg=177.53, stdev=50.63 lat (msec): min=14, max=324, avg=177.74, stdev=50.62 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 107], 10.00th=[ 117], 20.00th=[ 129], | 30.00th=[ 144], 40.00th=[ 159], 50.00th=[ 174], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 222], 90.00th=[ 249], 95.00th=[ 266], | 99.00th=[ 305], 99.50th=[ 309], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 326] bw ( KiB/s): min= 206, max= 640, per=24.97%, avg=357.59, stdev=89.23, samples=56 iops : min= 51, max= 160, avg=89.05, stdev=22.42, samples=56 lat (msec) : 20=0.04%, 50=0.12%, 100=2.77%, 250=87.70%, 500=9.38% cpu : usr=0.16%, sys=0.76%, ctx=2185, 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=192814: Sun Sep 6 20:56:44 2026 write: IOPS=90, BW=360KiB/s (369kB/s)(10.0MiB/28406msec); 0 zone resets slat (usec): min=22, max=16887, avg=264.86, stdev=872.98 clat (msec): min=25, max=358, avg=177.04, stdev=52.32 lat (msec): min=25, max=358, avg=177.31, stdev=52.32 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 104], 10.00th=[ 113], 20.00th=[ 128], | 30.00th=[ 142], 40.00th=[ 159], 50.00th=[ 176], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 247], 95.00th=[ 268], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 351], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 174, max= 648, per=25.10%, avg=359.43, stdev=94.94, samples=56 iops : min= 43, max= 162, avg=89.48, stdev=23.80, samples=56 lat (msec) : 50=0.12%, 100=3.59%, 250=86.99%, 500=9.30% cpu : usr=0.17%, sys=0.98%, ctx=2914, 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=192815: Sun Sep 6 20:56:44 2026 write: IOPS=89, BW=359KiB/s (368kB/s)(10.0MiB/28504msec); 0 zone resets slat (usec): min=26, max=23996, avg=229.83, stdev=936.09 clat (msec): min=27, max=346, avg=177.15, stdev=52.34 lat (msec): min=27, max=346, avg=177.38, stdev=52.36 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 103], 10.00th=[ 115], 20.00th=[ 130], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 176], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 191, max= 648, per=24.86%, avg=356.04, stdev=91.86, samples=56 iops : min= 47, max= 162, avg=88.63, stdev=23.08, samples=56 lat (msec) : 50=0.39%, 100=3.16%, 250=87.42%, 500=9.02% cpu : usr=0.17%, sys=0.83%, ctx=2517, 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=192816: Sun Sep 6 20:56:44 2026 write: IOPS=89, BW=358KiB/s (367kB/s)(10.0MiB/28590msec); 0 zone resets slat (usec): min=28, max=24480, avg=215.88, stdev=812.96 clat (msec): min=62, max=339, avg=177.86, stdev=51.50 lat (msec): min=62, max=339, avg=178.08, stdev=51.51 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 108], 10.00th=[ 116], 20.00th=[ 131], | 30.00th=[ 146], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 188], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 245], 95.00th=[ 279], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 190, max= 640, per=24.92%, avg=356.87, stdev=87.85, samples=56 iops : min= 47, max= 160, avg=88.88, stdev=22.05, samples=56 lat (msec) : 100=2.11%, 250=88.83%, 500=9.06% cpu : usr=0.16%, sys=0.78%, ctx=2447, 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=1433KiB/s (1467kB/s), 358KiB/s-360KiB/s (367kB/s-369kB/s), io=40.0MiB (41.9MB), run=28406-28590msec 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=192830: Sun Sep 6 20:57:19 2026 read: IOPS=43, BW=175KiB/s (179kB/s)(5048KiB/28903msec) slat (usec): min=2692, max=50386, avg=12492.17, stdev=6738.24 clat (msec): min=39, max=410, avg=169.79, stdev=42.85 lat (msec): min=68, max=440, avg=182.28, stdev=44.11 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 108], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 251], | 99.00th=[ 292], 99.50th=[ 321], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 78, max= 272, per=25.16%, avg=174.39, stdev=39.87, samples=57 iops : min= 19, max= 68, avg=43.16, stdev= 9.99, samples=57 write: IOPS=44, BW=180KiB/s (184kB/s)(5192KiB/28903msec); 0 zone resets slat (usec): min=33, max=8770, avg=185.12, stdev=479.68 clat (msec): min=28, max=349, avg=176.11, stdev=39.69 lat (msec): min=28, max=349, avg=176.30, stdev=39.70 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 118], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 226], 95.00th=[ 249], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 59, max= 270, per=24.95%, avg=179.88, stdev=40.70, samples=57 iops : min= 14, max= 67, avg=44.53, stdev=10.25, samples=57 lat (msec) : 50=0.08%, 100=1.80%, 250=93.28%, 500=4.84% cpu : usr=0.26%, sys=1.75%, ctx=4248, 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=192831: Sun Sep 6 20:57:19 2026 read: IOPS=43, BW=172KiB/s (177kB/s)(4976KiB/28862msec) slat (usec): min=2500, max=56513, avg=12182.31, stdev=6615.58 clat (msec): min=21, max=368, avg=169.60, stdev=42.78 lat (msec): min=37, max=391, avg=181.78, stdev=44.07 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 109], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 224], 95.00th=[ 251], | 99.00th=[ 305], 99.50th=[ 309], 99.90th=[ 347], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 58, max= 240, per=24.79%, avg=171.81, stdev=39.45, samples=57 iops : min= 14, max= 60, avg=42.51, stdev= 9.92, samples=57 write: IOPS=45, BW=182KiB/s (187kB/s)(5264KiB/28862msec); 0 zone resets slat (usec): min=33, max=22809, avg=239.89, stdev=961.30 clat (msec): min=35, max=328, avg=176.41, stdev=41.01 lat (msec): min=35, max=328, avg=176.65, stdev=41.01 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 253], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 104, max= 248, per=25.30%, avg=182.39, stdev=35.91, samples=57 iops : min= 26, max= 62, avg=45.18, stdev= 8.93, samples=57 lat (msec) : 50=0.08%, 100=1.64%, 250=93.12%, 500=5.16% cpu : usr=0.28%, sys=1.83%, ctx=4546, 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=192832: Sun Sep 6 20:57:19 2026 read: IOPS=43, BW=172KiB/s (176kB/s)(4984KiB/28941msec) slat (msec): min=2, max=175, avg=12.63, stdev= 8.81 clat (msec): min=10, max=491, avg=170.90, stdev=46.49 lat (msec): min=18, max=501, avg=183.53, stdev=48.13 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 228], 95.00th=[ 247], | 99.00th=[ 305], 99.50th=[ 409], 99.90th=[ 489], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 66, max= 263, per=24.78%, avg=171.75, stdev=38.95, samples=57 iops : min= 16, max= 65, avg=42.51, stdev= 9.75, samples=57 write: IOPS=45, BW=182KiB/s (186kB/s)(5256KiB/28941msec); 0 zone resets slat (usec): min=30, max=15696, avg=238.53, stdev=787.26 clat (msec): min=37, max=496, avg=175.30, stdev=45.14 lat (msec): min=37, max=496, avg=175.54, stdev=45.15 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 115], 10.00th=[ 128], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 226], 95.00th=[ 255], | 99.00th=[ 292], 99.50th=[ 430], 99.90th=[ 468], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 72, max= 263, per=24.97%, avg=180.04, stdev=44.84, samples=57 iops : min= 18, max= 65, avg=44.58, stdev=11.27, samples=57 lat (msec) : 20=0.04%, 50=0.27%, 100=1.88%, 250=92.46%, 500=5.35% cpu : usr=0.29%, sys=1.77%, ctx=4608, 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=192833: Sun Sep 6 20:57:19 2026 read: IOPS=44, BW=177KiB/s (181kB/s)(5060KiB/28650msec) slat (usec): min=48, max=47328, avg=12047.58, stdev=6762.68 clat (msec): min=25, max=390, avg=169.67, stdev=43.11 lat (msec): min=39, max=404, avg=181.72, stdev=44.42 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 111], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 249], | 99.00th=[ 288], 99.50th=[ 317], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 63, max= 270, per=25.63%, avg=177.61, stdev=33.95, samples=56 iops : min= 15, max= 67, avg=43.96, stdev= 8.49, samples=56 write: IOPS=45, BW=181KiB/s (185kB/s)(5180KiB/28650msec); 0 zone resets slat (usec): min=31, max=26006, avg=234.64, stdev=1062.45 clat (msec): min=90, max=405, avg=175.62, stdev=40.12 lat (msec): min=90, max=405, avg=175.85, stdev=40.09 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 121], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 222], 95.00th=[ 249], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 111, max= 245, per=25.10%, avg=180.96, stdev=34.22, samples=56 iops : min= 27, max= 61, avg=44.80, stdev= 8.60, samples=56 lat (msec) : 50=0.20%, 100=1.48%, 250=93.67%, 500=4.65% cpu : usr=0.25%, sys=1.73%, ctx=4529, 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=693KiB/s (710kB/s), 172KiB/s-177KiB/s (176kB/s-181kB/s), io=19.6MiB (20.5MB), run=28650-28941msec WRITE: bw=722KiB/s (739kB/s), 180KiB/s-182KiB/s (184kB/s-187kB/s), io=20.4MiB (21.4MB), run=28650-28941msec 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=192842: Sun Sep 6 20:57:29 2026 read: IOPS=2, BW=81.1MiB/s (85.1MB/s)(40.0MiB/493msec) slat (nsec): min=45310k, max=45310k, avg=45309855.00, stdev= 0.00 clat (nsec): min=432285k, max=432285k, avg=432284592.00, stdev= 0.00 lat (nsec): min=477599k, max=477599k, avg=477598815.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] lat (msec) : 500=100.00% cpu : usr=0.20%, sys=2.24%, ctx=7, 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=81.1MiB/s (85.1MB/s), 81.1MiB/s-81.1MiB/s (85.1MB/s-85.1MB/s), io=40.0MiB (41.9MB), run=493-493msec 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