== sanity test 398c: run fio to test AIO ================= 03:45:02 (1787039102) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.401526 s, 104 MB/s osc.lustre-OST0000-osc-ffff88a90b1b5000.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=179384: Tue Aug 18 03:45:39 2026 write: IOPS=90, BW=362KiB/s (370kB/s)(10.0MiB/28320msec); 0 zone resets slat (usec): min=37, max=19508, avg=326.68, stdev=851.48 clat (msec): min=24, max=282, avg=176.02, stdev=32.68 lat (msec): min=24, max=282, avg=176.35, stdev=32.68 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 134], 10.00th=[ 140], 20.00th=[ 148], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 205], 90.00th=[ 218], 95.00th=[ 230], | 99.00th=[ 259], 99.50th=[ 275], 99.90th=[ 279], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 264, max= 485, per=24.96%, avg=360.91, stdev=55.07, samples=56 iops : min= 66, max= 121, avg=89.86, stdev=13.74, samples=56 lat (msec) : 50=0.16%, 100=0.66%, 250=97.54%, 500=1.64% cpu : usr=0.19%, sys=1.32%, ctx=2867, 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=179385: Tue Aug 18 03:45:39 2026 write: IOPS=90, BW=364KiB/s (372kB/s)(10.0MiB/28156msec); 0 zone resets slat (usec): min=51, max=9975, avg=339.18, stdev=717.02 clat (msec): min=25, max=457, avg=175.42, stdev=36.28 lat (msec): min=26, max=457, avg=175.76, stdev=36.27 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 129], 10.00th=[ 138], 20.00th=[ 148], | 30.00th=[ 157], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 203], 90.00th=[ 220], 95.00th=[ 232], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 426], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 263, max= 480, per=25.21%, avg=364.47, stdev=56.22, samples=55 iops : min= 65, max= 120, avg=90.75, stdev=14.12, samples=55 lat (msec) : 50=0.27%, 100=0.70%, 250=97.34%, 500=1.68% cpu : usr=0.21%, sys=1.44%, ctx=3003, 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=179386: Tue Aug 18 03:45:39 2026 write: IOPS=90, BW=362KiB/s (370kB/s)(10.0MiB/28311msec); 0 zone resets slat (usec): min=52, max=10338, avg=345.28, stdev=711.71 clat (msec): min=28, max=298, avg=175.62, stdev=31.52 lat (msec): min=28, max=298, avg=175.97, stdev=31.51 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 133], 10.00th=[ 140], 20.00th=[ 148], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 220], 95.00th=[ 230], | 99.00th=[ 255], 99.50th=[ 262], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 300] bw ( KiB/s): min= 226, max= 509, per=24.98%, avg=361.27, stdev=58.12, samples=56 iops : min= 56, max= 127, avg=89.95, stdev=14.57, samples=56 lat (msec) : 50=0.20%, 250=98.59%, 500=1.21% cpu : usr=0.22%, sys=1.35%, ctx=2919, 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=179387: Tue Aug 18 03:45:39 2026 write: IOPS=90, BW=362KiB/s (371kB/s)(10.0MiB/28277msec); 0 zone resets slat (usec): min=51, max=10450, avg=303.45, stdev=727.12 clat (msec): min=22, max=424, avg=175.51, stdev=33.79 lat (msec): min=23, max=424, avg=175.82, stdev=33.78 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 148], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 190], 80.00th=[ 201], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 317], 99.95th=[ 393], | 99.99th=[ 426] bw ( KiB/s): min= 235, max= 508, per=24.99%, avg=361.29, stdev=61.18, samples=56 iops : min= 58, max= 127, avg=89.95, stdev=15.33, samples=56 lat (msec) : 50=0.31%, 100=0.35%, 250=96.64%, 500=2.70% cpu : usr=0.17%, sys=1.26%, ctx=2502, 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=1446KiB/s (1481kB/s), 362KiB/s-364KiB/s (370kB/s-372kB/s), io=40.0MiB (41.9MB), run=28156-28320msec 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=179401: Tue Aug 18 03:46:13 2026 read: IOPS=47, BW=192KiB/s (196kB/s)(5048KiB/26319msec) slat (usec): min=3144, max=49563, avg=11332.13, stdev=5691.81 clat (msec): min=28, max=273, avg=154.25, stdev=35.53 lat (msec): min=35, max=294, avg=165.59, stdev=37.32 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 104], 10.00th=[ 113], 20.00th=[ 125], | 30.00th=[ 134], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 220], | 99.00th=[ 253], 99.50th=[ 264], 99.90th=[ 271], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 116, max= 300, per=25.06%, avg=190.96, stdev=45.52, samples=52 iops : min= 29, max= 75, avg=47.40, stdev=11.43, samples=52 write: IOPS=49, BW=197KiB/s (202kB/s)(5192KiB/26319msec); 0 zone resets slat (usec): min=54, max=11934, avg=377.02, stdev=808.57 clat (msec): min=17, max=277, avg=161.54, stdev=35.65 lat (msec): min=18, max=277, avg=161.92, stdev=35.67 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 108], 10.00th=[ 117], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 226], | 99.00th=[ 259], 99.50th=[ 262], 99.90th=[ 268], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 112, max= 304, per=24.83%, avg=196.92, stdev=39.67, samples=52 iops : min= 28, max= 76, avg=48.88, stdev= 9.95, samples=52 lat (msec) : 20=0.04%, 50=0.04%, 100=3.01%, 250=95.31%, 500=1.60% cpu : usr=0.33%, sys=2.39%, ctx=4792, 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=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=179402: Tue Aug 18 03:46:13 2026 read: IOPS=47, BW=189KiB/s (194kB/s)(4976KiB/26322msec) slat (usec): min=2792, max=41064, avg=10987.64, stdev=5359.28 clat (msec): min=29, max=278, avg=154.31, stdev=35.02 lat (msec): min=38, max=296, avg=165.31, stdev=36.38 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 104], 10.00th=[ 113], 20.00th=[ 125], | 30.00th=[ 134], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 169], 80.00th=[ 182], 90.00th=[ 203], 95.00th=[ 220], | 99.00th=[ 249], 99.50th=[ 257], 99.90th=[ 271], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 96, max= 277, per=24.72%, avg=188.35, stdev=40.41, samples=52 iops : min= 24, max= 69, avg=46.73, stdev=10.04, samples=52 write: IOPS=49, BW=200KiB/s (205kB/s)(5264KiB/26322msec); 0 zone resets slat (usec): min=58, max=7756, avg=378.07, stdev=766.90 clat (msec): min=81, max=283, avg=161.99, stdev=34.33 lat (msec): min=81, max=283, avg=162.37, stdev=34.34 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 133], | 30.00th=[ 144], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 251], 99.50th=[ 264], 99.90th=[ 266], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 87, max= 324, per=25.22%, avg=199.98, stdev=43.95, samples=52 iops : min= 21, max= 81, avg=49.65, stdev=11.14, samples=52 lat (msec) : 50=0.04%, 100=3.05%, 250=95.86%, 500=1.05% cpu : usr=0.27%, sys=2.25%, ctx=4588, 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=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=179403: Tue Aug 18 03:46:13 2026 read: IOPS=47, BW=190KiB/s (194kB/s)(4984KiB/26276msec) slat (usec): min=3216, max=43468, avg=11111.03, stdev=5501.44 clat (msec): min=65, max=294, avg=154.09, stdev=35.07 lat (msec): min=83, max=303, avg=165.20, stdev=36.69 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 104], 10.00th=[ 113], 20.00th=[ 126], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 161], | 70.00th=[ 169], 80.00th=[ 182], 90.00th=[ 201], 95.00th=[ 222], | 99.00th=[ 247], 99.50th=[ 257], 99.90th=[ 288], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 110, max= 295, per=24.89%, avg=189.65, stdev=46.74, samples=52 iops : min= 27, max= 73, avg=47.06, stdev=11.77, samples=52 write: IOPS=50, BW=200KiB/s (205kB/s)(5256KiB/26276msec); 0 zone resets slat (usec): min=53, max=15119, avg=395.42, stdev=835.03 clat (msec): min=75, max=307, avg=161.39, stdev=36.04 lat (msec): min=75, max=307, avg=161.79, stdev=36.06 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 192], 90.00th=[ 213], 95.00th=[ 228], | 99.00th=[ 257], 99.50th=[ 275], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 111, max= 288, per=25.08%, avg=198.85, stdev=44.53, samples=52 iops : min= 27, max= 72, avg=49.37, stdev=11.15, samples=52 lat (msec) : 100=2.70%, 250=95.94%, 500=1.37% cpu : usr=0.25%, sys=2.30%, ctx=4877, 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=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=179404: Tue Aug 18 03:46:13 2026 read: IOPS=48, BW=193KiB/s (198kB/s)(5060KiB/26154msec) slat (usec): min=95, max=38903, avg=10931.28, stdev=5421.08 clat (msec): min=12, max=312, avg=155.92, stdev=38.33 lat (msec): min=17, max=323, avg=166.86, stdev=39.87 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 101], 10.00th=[ 113], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 186], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 111, max= 286, per=25.44%, avg=193.86, stdev=39.38, samples=51 iops : min= 27, max= 71, avg=48.12, stdev= 9.88, samples=51 write: IOPS=49, BW=198KiB/s (203kB/s)(5180KiB/26154msec); 0 zone resets slat (usec): min=56, max=11328, avg=350.38, stdev=708.96 clat (msec): min=45, max=317, avg=159.43, stdev=36.23 lat (msec): min=45, max=318, avg=159.79, stdev=36.26 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 107], 10.00th=[ 115], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 188], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 255], 99.50th=[ 271], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 103, max= 344, per=24.94%, avg=197.76, stdev=46.09, samples=51 iops : min= 25, max= 86, avg=49.08, stdev=11.53, samples=51 lat (msec) : 20=0.16%, 50=0.16%, 100=3.67%, 250=94.34%, 500=1.68% cpu : usr=0.26%, sys=2.16%, ctx=4707, 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=762KiB/s (781kB/s), 189KiB/s-193KiB/s (194kB/s-198kB/s), io=19.6MiB (20.5MB), run=26154-26322msec WRITE: bw=794KiB/s (813kB/s), 197KiB/s-200KiB/s (202kB/s-205kB/s), io=20.4MiB (21.4MB), run=26154-26322msec 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=179412: Tue Aug 18 03:46:21 2026 read: IOPS=2, BW=114MiB/s (119MB/s)(40.0MiB/351msec) slat (nsec): min=25072k, max=25072k, avg=25071527.00, stdev= 0.00 clat (nsec): min=306033k, max=306033k, avg=306032590.00, stdev= 0.00 lat (nsec): min=331108k, max=331108k, avg=331108051.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.43%, ctx=4, 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=114MiB/s (119MB/s), 114MiB/s-114MiB/s (119MB/s-119MB/s), io=40.0MiB (41.9MB), run=351-351msec 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