== sanity test 398c: run fio to test AIO ================= 19:48:03 (1784764083) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.384047 s, 109 MB/s osc.lustre-OST0000-osc-ffff916ec903c800.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=181023: Wed Jul 22 19:48:38 2026 write: IOPS=103, BW=412KiB/s (422kB/s)(10.0MiB/24838msec); 0 zone resets slat (usec): min=35, max=11414, avg=367.53, stdev=809.29 clat (msec): min=75, max=248, avg=154.20, stdev=27.93 lat (msec): min=75, max=248, avg=154.57, stdev=27.94 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 113], 10.00th=[ 122], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 159], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 192], 95.00th=[ 211], | 99.00th=[ 228], 99.50th=[ 236], 99.90th=[ 243], 99.95th=[ 245], | 99.99th=[ 249] bw ( KiB/s): min= 271, max= 512, per=24.88%, avg=410.24, stdev=45.39, samples=49 iops : min= 67, max= 128, avg=102.20, stdev=11.42, samples=49 lat (msec) : 100=0.94%, 250=99.06% cpu : usr=0.21%, sys=1.34%, ctx=2624, 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=181024: Wed Jul 22 19:48:38 2026 write: IOPS=103, BW=415KiB/s (425kB/s)(10.0MiB/24676msec); 0 zone resets slat (usec): min=50, max=9634, avg=383.09, stdev=784.17 clat (msec): min=17, max=272, avg=153.61, stdev=29.83 lat (msec): min=19, max=272, avg=154.00, stdev=29.82 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 111], 10.00th=[ 121], 20.00th=[ 131], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 167], 80.00th=[ 178], 90.00th=[ 194], 95.00th=[ 209], | 99.00th=[ 232], 99.50th=[ 239], 99.90th=[ 241], 99.95th=[ 247], | 99.99th=[ 271] bw ( KiB/s): min= 287, max= 576, per=25.16%, avg=414.83, stdev=58.35, samples=48 iops : min= 71, max= 144, avg=103.35, stdev=14.66, samples=48 lat (msec) : 20=0.04%, 50=0.08%, 100=1.91%, 250=97.93%, 500=0.04% cpu : usr=0.21%, sys=1.52%, ctx=2957, 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=181025: Wed Jul 22 19:48:38 2026 write: IOPS=103, BW=412KiB/s (422kB/s)(10.0MiB/24828msec); 0 zone resets slat (usec): min=35, max=10139, avg=359.78, stdev=738.16 clat (msec): min=16, max=248, avg=154.18, stdev=28.03 lat (msec): min=19, max=249, avg=154.55, stdev=28.05 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 113], 10.00th=[ 122], 20.00th=[ 132], | 30.00th=[ 138], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 159], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 194], 95.00th=[ 211], | 99.00th=[ 228], 99.50th=[ 234], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 249] bw ( KiB/s): min= 295, max= 512, per=24.95%, avg=411.43, stdev=51.02, samples=49 iops : min= 73, max= 128, avg=102.51, stdev=12.84, samples=49 lat (msec) : 20=0.04%, 100=0.94%, 250=99.02% cpu : usr=0.22%, sys=1.43%, ctx=2671, 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=181026: Wed Jul 22 19:48:38 2026 write: IOPS=103, BW=413KiB/s (423kB/s)(10.0MiB/24811msec); 0 zone resets slat (usec): min=54, max=11794, avg=365.93, stdev=772.35 clat (msec): min=25, max=247, avg=154.12, stdev=28.09 lat (msec): min=26, max=247, avg=154.49, stdev=28.10 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 112], 10.00th=[ 122], 20.00th=[ 132], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 159], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 192], 95.00th=[ 207], | 99.00th=[ 230], 99.50th=[ 241], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 303, max= 528, per=25.01%, avg=412.43, stdev=54.09, samples=49 iops : min= 75, max= 132, avg=102.76, stdev=13.61, samples=49 lat (msec) : 50=0.20%, 100=0.70%, 250=99.10% cpu : usr=0.23%, sys=1.54%, ctx=2973, 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 Run status group 0 (all jobs): WRITE: bw=1649KiB/s (1689kB/s), 412KiB/s-415KiB/s (422kB/s-425kB/s), io=40.0MiB (41.9MB), run=24676-24838msec 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=181040: Wed Jul 22 19:49:13 2026 read: IOPS=44, BW=179KiB/s (183kB/s)(5048KiB/28277msec) slat (usec): min=2930, max=55894, avg=12222.34, stdev=6211.44 clat (msec): min=17, max=310, avg=167.09, stdev=36.19 lat (msec): min=23, max=347, avg=179.32, stdev=37.56 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 117], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 228], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 71, max= 264, per=25.08%, avg=177.79, stdev=35.68, samples=56 iops : min= 17, max= 66, avg=44.04, stdev= 8.96, samples=56 write: IOPS=45, BW=184KiB/s (188kB/s)(5192KiB/28277msec); 0 zone resets slat (usec): min=60, max=15297, avg=409.63, stdev=812.26 clat (msec): min=80, max=315, avg=171.24, stdev=34.65 lat (msec): min=80, max=315, avg=171.65, stdev=34.65 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 123], 10.00th=[ 131], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 266], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 87, max= 256, per=24.83%, avg=183.27, stdev=39.38, samples=56 iops : min= 21, max= 64, avg=45.45, stdev= 9.81, samples=56 lat (msec) : 20=0.04%, 50=0.16%, 100=0.59%, 250=96.56%, 500=2.66% cpu : usr=0.26%, sys=2.34%, ctx=4689, 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=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=181041: Wed Jul 22 19:49:13 2026 read: IOPS=44, BW=177KiB/s (181kB/s)(4976KiB/28155msec) slat (usec): min=2752, max=45444, avg=12429.46, stdev=5843.78 clat (msec): min=24, max=307, avg=167.92, stdev=36.13 lat (msec): min=31, max=326, avg=180.36, stdev=36.90 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 115], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 103, max= 261, per=24.85%, avg=176.20, stdev=31.58, samples=55 iops : min= 25, max= 65, avg=43.65, stdev= 7.95, samples=55 write: IOPS=46, BW=187KiB/s (191kB/s)(5264KiB/28155msec); 0 zone resets slat (usec): min=59, max=8379, avg=349.83, stdev=592.91 clat (msec): min=95, max=315, avg=169.95, stdev=32.72 lat (msec): min=95, max=315, avg=170.30, stdev=32.69 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 125], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 213], 95.00th=[ 232], | 99.00th=[ 262], 99.50th=[ 279], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 88, max= 264, per=25.45%, avg=187.84, stdev=36.30, samples=55 iops : min= 22, max= 66, avg=46.56, stdev= 9.03, samples=55 lat (msec) : 50=0.08%, 100=0.70%, 250=96.88%, 500=2.34% cpu : usr=0.31%, sys=2.44%, ctx=4665, 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=181042: Wed Jul 22 19:49:13 2026 read: IOPS=44, BW=178KiB/s (182kB/s)(4984KiB/27977msec) slat (usec): min=106, max=55343, avg=12285.78, stdev=6222.73 clat (msec): min=20, max=490, avg=166.95, stdev=38.50 lat (msec): min=21, max=511, avg=179.25, stdev=39.81 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 114], 10.00th=[ 129], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 194], 90.00th=[ 213], 95.00th=[ 232], | 99.00th=[ 271], 99.50th=[ 296], 99.90th=[ 477], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 104, max= 256, per=25.26%, avg=179.07, stdev=34.94, samples=55 iops : min= 26, max= 64, avg=44.35, stdev= 8.80, samples=55 write: IOPS=46, BW=188KiB/s (192kB/s)(5256KiB/27977msec); 0 zone resets slat (usec): min=44, max=10663, avg=403.86, stdev=710.13 clat (msec): min=46, max=469, avg=169.79, stdev=39.06 lat (msec): min=46, max=469, avg=170.19, stdev=39.03 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 122], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 215], 95.00th=[ 236], | 99.00th=[ 268], 99.50th=[ 380], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 119, max= 271, per=25.41%, avg=187.49, stdev=39.65, samples=55 iops : min= 29, max= 67, avg=46.47, stdev= 9.93, samples=55 lat (msec) : 50=0.23%, 100=0.98%, 250=96.56%, 500=2.23% cpu : usr=0.34%, sys=2.39%, ctx=4676, 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=181043: Wed Jul 22 19:49:13 2026 read: IOPS=44, BW=179KiB/s (183kB/s)(5060KiB/28281msec) slat (usec): min=2763, max=59698, avg=12311.69, stdev=6015.67 clat (msec): min=84, max=307, avg=167.25, stdev=35.41 lat (msec): min=90, max=335, avg=179.57, stdev=36.61 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 117], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 192], 90.00th=[ 213], 95.00th=[ 234], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 80, max= 256, per=25.16%, avg=178.38, stdev=35.11, samples=56 iops : min= 20, max= 64, avg=44.20, stdev= 8.80, samples=56 write: IOPS=45, BW=183KiB/s (188kB/s)(5180KiB/28281msec); 0 zone resets slat (usec): min=59, max=10602, avg=393.15, stdev=732.20 clat (msec): min=87, max=297, avg=171.11, stdev=33.90 lat (msec): min=87, max=297, avg=171.51, stdev=33.88 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 72, max= 272, per=24.75%, avg=182.64, stdev=39.69, samples=56 iops : min= 18, max= 68, avg=45.27, stdev= 9.95, samples=56 lat (msec) : 100=0.94%, 250=96.41%, 500=2.66% cpu : usr=0.30%, sys=2.41%, ctx=4766, 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=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=710KiB/s (727kB/s), 177KiB/s-179KiB/s (181kB/s-183kB/s), io=19.6MiB (20.5MB), run=27977-28281msec WRITE: bw=739KiB/s (756kB/s), 183KiB/s-188KiB/s (188kB/s-192kB/s), io=20.4MiB (21.4MB), run=27977-28281msec 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=181052: Wed Jul 22 19:49:23 2026 read: IOPS=1, BW=79.8MiB/s (83.7MB/s)(40.0MiB/501msec) slat (nsec): min=60580k, max=60580k, avg=60579610.00, stdev= 0.00 clat (nsec): min=413806k, max=413806k, avg=413805825.00, stdev= 0.00 lat (nsec): min=474391k, max=474391k, avg=474390934.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.20%, ctx=14, 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=79.8MiB/s (83.7MB/s), 79.8MiB/s-79.8MiB/s (83.7MB/s-83.7MB/s), io=40.0MiB (41.9MB), run=501-501msec 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