== sanity test 398c: run fio to test AIO ================= 09:54:12 (1783518852) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.131704 s, 318 MB/s osc.lustre-OST0000-osc-ffff9d44b893a000.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=153698: Wed Jul 8 09:54:45 2026 write: IOPS=87, BW=351KiB/s (360kB/s)(10.0MiB/29139msec); 0 zone resets slat (usec): min=41, max=758, avg=212.14, stdev=92.07 clat (msec): min=36, max=298, avg=181.70, stdev=35.49 lat (msec): min=36, max=298, avg=181.92, stdev=35.50 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 120], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 190], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 228], 95.00th=[ 236], | 99.00th=[ 253], 99.50th=[ 268], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 300] bw ( KiB/s): min= 272, max= 663, per=24.87%, avg=349.46, stdev=57.63, samples=57 iops : min= 68, max= 165, avg=87.35, stdev=14.34, samples=57 lat (msec) : 50=0.62%, 100=2.81%, 250=95.16%, 500=1.41% cpu : usr=0.12%, sys=1.55%, ctx=2737, 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=153699: Wed Jul 8 09:54:45 2026 write: IOPS=88, BW=352KiB/s (361kB/s)(10.0MiB/29069msec); 0 zone resets slat (usec): min=37, max=729, avg=212.64, stdev=91.24 clat (msec): min=21, max=310, avg=181.36, stdev=36.46 lat (msec): min=21, max=310, avg=181.57, stdev=36.47 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 113], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 239], | 99.00th=[ 255], 99.50th=[ 268], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 272, max= 720, per=24.94%, avg=350.46, stdev=62.40, samples=57 iops : min= 68, max= 180, avg=87.61, stdev=15.60, samples=57 lat (msec) : 50=0.47%, 100=2.85%, 250=95.00%, 500=1.68% cpu : usr=0.17%, sys=1.51%, ctx=2795, 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=153700: Wed Jul 8 09:54:45 2026 write: IOPS=87, BW=351KiB/s (360kB/s)(10.0MiB/29139msec); 0 zone resets slat (usec): min=49, max=737, avg=210.62, stdev=90.65 clat (msec): min=33, max=296, avg=181.70, stdev=35.64 lat (msec): min=33, max=296, avg=181.91, stdev=35.65 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 117], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 190], | 70.00th=[ 199], 80.00th=[ 209], 90.00th=[ 226], 95.00th=[ 239], | 99.00th=[ 259], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 296] bw ( KiB/s): min= 272, max= 669, per=24.83%, avg=348.86, stdev=57.62, samples=57 iops : min= 68, max= 167, avg=87.21, stdev=14.38, samples=57 lat (msec) : 50=0.62%, 100=2.81%, 250=94.49%, 500=2.07% cpu : usr=0.10%, sys=1.54%, ctx=2767, 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=153701: Wed Jul 8 09:54:45 2026 write: IOPS=87, BW=351KiB/s (360kB/s)(10.0MiB/29139msec); 0 zone resets slat (usec): min=45, max=1530, avg=215.92, stdev=97.49 clat (msec): min=40, max=310, avg=181.74, stdev=35.47 lat (msec): min=40, max=310, avg=181.96, stdev=35.48 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 117], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 176], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 236], | 99.00th=[ 255], 99.50th=[ 268], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 309] bw ( KiB/s): min= 264, max= 676, per=24.86%, avg=349.26, stdev=57.88, samples=57 iops : min= 66, max= 169, avg=87.32, stdev=14.47, samples=57 lat (msec) : 50=0.66%, 100=2.46%, 250=95.35%, 500=1.52% cpu : usr=0.15%, sys=1.53%, ctx=2793, 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 Run status group 0 (all jobs): WRITE: bw=1406KiB/s (1439kB/s), 351KiB/s-352KiB/s (360kB/s-361kB/s), io=40.0MiB (41.9MB), run=29069-29139msec 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=153715: Wed Jul 8 09:55:06 2026 read: IOPS=67, BW=271KiB/s (278kB/s)(5048KiB/18619msec) slat (usec): min=973, max=7435, avg=2406.74, stdev=768.68 clat (msec): min=4, max=168, avg=73.63, stdev=14.15 lat (msec): min=6, max=171, avg=76.04, stdev=14.25 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 64], | 30.00th=[ 67], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 82], 80.00th=[ 85], 90.00th=[ 90], 95.00th=[ 95], | 99.00th=[ 104], 99.50th=[ 111], 99.90th=[ 155], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 184, max= 384, per=25.24%, avg=271.81, stdev=46.95, samples=36 iops : min= 46, max= 96, avg=67.92, stdev=11.75, samples=36 write: IOPS=69, BW=279KiB/s (286kB/s)(5192KiB/18619msec); 0 zone resets slat (usec): min=54, max=1627, avg=187.77, stdev=102.75 clat (msec): min=57, max=285, avg=154.87, stdev=33.56 lat (msec): min=58, max=285, avg=155.06, stdev=33.57 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 124], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 209], | 99.00th=[ 224], 99.50th=[ 234], 99.90th=[ 268], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 224, max= 344, per=24.92%, avg=279.31, stdev=31.06, samples=36 iops : min= 56, max= 86, avg=69.81, stdev= 7.75, samples=36 lat (msec) : 10=0.04%, 20=0.31%, 50=1.41%, 100=48.87%, 250=49.26% lat (msec) : 500=0.12% cpu : usr=0.23%, sys=2.45%, ctx=4955, 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=153716: Wed Jul 8 09:55:06 2026 read: IOPS=66, BW=268KiB/s (274kB/s)(4976KiB/18576msec) slat (usec): min=40, max=6299, avg=2356.50, stdev=746.43 clat (msec): min=4, max=206, avg=73.16, stdev=16.42 lat (msec): min=5, max=208, avg=75.52, stdev=16.52 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 52], 10.00th=[ 57], 20.00th=[ 63], | 30.00th=[ 67], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 81], 80.00th=[ 84], 90.00th=[ 90], 95.00th=[ 94], | 99.00th=[ 108], 99.50th=[ 161], 99.90th=[ 197], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 184, max= 392, per=24.94%, avg=268.56, stdev=46.45, samples=36 iops : min= 46, max= 98, avg=67.11, stdev=11.61, samples=36 write: IOPS=70, BW=283KiB/s (290kB/s)(5264KiB/18576msec); 0 zone resets slat (usec): min=38, max=3138, avg=185.10, stdev=120.22 clat (msec): min=30, max=286, avg=154.06, stdev=34.90 lat (msec): min=30, max=286, avg=154.25, stdev=34.90 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 103], 10.00th=[ 110], 20.00th=[ 124], | 30.00th=[ 134], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 199], 95.00th=[ 209], | 99.00th=[ 222], 99.50th=[ 232], 99.90th=[ 275], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 208, max= 376, per=25.33%, avg=284.00, stdev=36.75, samples=36 iops : min= 52, max= 94, avg=70.97, stdev= 9.17, samples=36 lat (msec) : 10=0.31%, 20=0.31%, 50=2.15%, 100=47.34%, 250=49.73% lat (msec) : 500=0.16% cpu : usr=0.25%, sys=2.39%, ctx=4864, 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=153717: Wed Jul 8 09:55:06 2026 read: IOPS=66, BW=268KiB/s (274kB/s)(4984KiB/18630msec) slat (usec): min=988, max=6571, avg=2404.23, stdev=745.38 clat (msec): min=2, max=116, avg=73.25, stdev=14.21 lat (msec): min=4, max=118, avg=75.65, stdev=14.29 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 52], 10.00th=[ 57], 20.00th=[ 64], | 30.00th=[ 68], 40.00th=[ 71], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 81], 80.00th=[ 84], 90.00th=[ 90], 95.00th=[ 96], | 99.00th=[ 104], 99.50th=[ 107], 99.90th=[ 111], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 168, max= 416, per=24.89%, avg=268.06, stdev=56.20, samples=36 iops : min= 42, max= 104, avg=67.00, stdev=14.07, samples=36 write: IOPS=70, BW=282KiB/s (289kB/s)(5256KiB/18630msec); 0 zone resets slat (usec): min=57, max=2343, avg=187.67, stdev=105.92 clat (msec): min=18, max=236, avg=154.46, stdev=33.35 lat (msec): min=18, max=236, avg=154.65, stdev=33.35 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 102], 10.00th=[ 112], 20.00th=[ 126], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 197], 95.00th=[ 207], | 99.00th=[ 220], 99.50th=[ 228], 99.90th=[ 234], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 216, max= 344, per=24.90%, avg=279.14, stdev=36.37, samples=36 iops : min= 54, max= 86, avg=69.75, stdev= 9.09, samples=36 lat (msec) : 4=0.23%, 10=0.04%, 20=0.23%, 50=1.72%, 100=47.97% lat (msec) : 250=49.80% cpu : usr=0.23%, sys=2.44%, ctx=4947, 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=153718: Wed Jul 8 09:55:06 2026 read: IOPS=68, BW=272KiB/s (279kB/s)(5060KiB/18576msec) slat (usec): min=1068, max=6796, avg=2403.11, stdev=747.58 clat (msec): min=4, max=211, avg=72.98, stdev=14.80 lat (msec): min=5, max=213, avg=75.38, stdev=14.89 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 52], 10.00th=[ 57], 20.00th=[ 63], | 30.00th=[ 66], 40.00th=[ 70], 50.00th=[ 74], 60.00th=[ 78], | 70.00th=[ 81], 80.00th=[ 84], 90.00th=[ 89], 95.00th=[ 94], | 99.00th=[ 105], 99.50th=[ 112], 99.90th=[ 155], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 160, max= 360, per=25.46%, avg=274.17, stdev=54.80, samples=36 iops : min= 40, max= 90, avg=68.53, stdev=13.71, samples=36 write: IOPS=69, BW=279KiB/s (286kB/s)(5180KiB/18576msec); 0 zone resets slat (usec): min=58, max=1370, avg=186.31, stdev=89.45 clat (msec): min=59, max=289, avg=155.09, stdev=33.22 lat (msec): min=59, max=289, avg=155.27, stdev=33.22 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 104], 10.00th=[ 111], 20.00th=[ 127], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 209], | 99.00th=[ 232], 99.50th=[ 241], 99.90th=[ 275], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 224, max= 328, per=24.88%, avg=278.94, stdev=28.69, samples=36 iops : min= 56, max= 82, avg=69.72, stdev= 7.18, samples=36 lat (msec) : 10=0.16%, 20=0.27%, 50=1.29%, 100=48.79%, 250=49.34% lat (msec) : 500=0.16% cpu : usr=0.24%, sys=2.46%, ctx=4988, 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=1077KiB/s (1103kB/s), 268KiB/s-272KiB/s (274kB/s-279kB/s), io=19.6MiB (20.5MB), run=18576-18630msec WRITE: bw=1121KiB/s (1148kB/s), 279KiB/s-283KiB/s (286kB/s-290kB/s), io=20.4MiB (21.4MB), run=18576-18630msec 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=153724: Wed Jul 8 09:55:10 2026 read: IOPS=8, BW=339MiB/s (355MB/s)(40.0MiB/118msec) slat (nsec): min=12622k, max=12622k, avg=12621925.00, stdev= 0.00 clat (nsec): min=100518k, max=100518k, avg=100517547.00, stdev= 0.00 lat (nsec): min=113143k, max=113143k, avg=113143297.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 101], 60.00th=[ 101], | 70.00th=[ 101], 80.00th=[ 101], 90.00th=[ 101], 95.00th=[ 101], | 99.00th=[ 101], 99.50th=[ 101], 99.90th=[ 101], 99.95th=[ 101], | 99.99th=[ 101] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=8.55%, ctx=36, 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=339MiB/s (355MB/s), 339MiB/s-339MiB/s (355MB/s-355MB/s), io=40.0MiB (41.9MB), run=118-118msec 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