== sanity test 398c: run fio to test AIO ================= 09:54:29 (1787320469) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.600045 s, 69.9 MB/s osc.lustre-OST0000-osc-ffffa0732c211800.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=179962: Fri Aug 21 09:55:07 2026 write: IOPS=94, BW=378KiB/s (387kB/s)(10.0MiB/27079msec); 0 zone resets slat (usec): min=40, max=11028, avg=297.85, stdev=734.87 clat (msec): min=18, max=323, avg=168.80, stdev=40.85 lat (msec): min=19, max=324, avg=169.10, stdev=40.84 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 313], | 99.99th=[ 326] bw ( KiB/s): min= 254, max= 597, per=25.09%, avg=376.17, stdev=76.81, samples=53 iops : min= 63, max= 149, avg=93.64, stdev=19.27, samples=53 lat (msec) : 20=0.04%, 50=0.08%, 100=2.03%, 250=93.40%, 500=4.45% cpu : usr=0.17%, sys=1.31%, ctx=2255, 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=179963: Fri Aug 21 09:55:07 2026 write: IOPS=93, BW=375KiB/s (384kB/s)(10.0MiB/27286msec); 0 zone resets slat (usec): min=41, max=23910, avg=352.79, stdev=1193.46 clat (msec): min=28, max=304, avg=169.46, stdev=40.71 lat (msec): min=29, max=304, avg=169.82, stdev=40.76 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 110], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 236], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 305] bw ( KiB/s): min= 250, max= 512, per=24.97%, avg=374.35, stdev=76.10, samples=54 iops : min= 62, max= 128, avg=93.20, stdev=19.09, samples=54 lat (msec) : 50=0.08%, 100=2.23%, 250=93.20%, 500=4.49% cpu : usr=0.12%, sys=1.33%, ctx=2319, 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=179964: Fri Aug 21 09:55:07 2026 write: IOPS=93, BW=375KiB/s (384kB/s)(10.0MiB/27282msec); 0 zone resets slat (usec): min=38, max=18600, avg=313.43, stdev=791.87 clat (msec): min=24, max=322, avg=169.19, stdev=41.54 lat (msec): min=24, max=322, avg=169.50, stdev=41.55 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 109], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 247], | 99.00th=[ 288], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 250, max= 512, per=24.99%, avg=374.59, stdev=67.98, samples=54 iops : min= 62, max= 128, avg=93.24, stdev=17.08, samples=54 lat (msec) : 50=0.12%, 100=1.72%, 250=93.98%, 500=4.18% cpu : usr=0.19%, sys=1.32%, ctx=2607, 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=179965: Fri Aug 21 09:55:07 2026 write: IOPS=93, BW=375KiB/s (384kB/s)(10.0MiB/27314msec); 0 zone resets slat (usec): min=48, max=34685, avg=379.80, stdev=1217.52 clat (msec): min=23, max=326, avg=169.49, stdev=40.23 lat (msec): min=24, max=326, avg=169.88, stdev=40.21 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 110], 10.00th=[ 124], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 220], 95.00th=[ 241], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 252, max= 544, per=24.94%, avg=373.87, stdev=66.10, samples=54 iops : min= 63, max= 136, avg=93.06, stdev=16.60, samples=54 lat (msec) : 50=0.08%, 100=1.52%, 250=94.49%, 500=3.91% cpu : usr=0.23%, sys=1.42%, ctx=2808, 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=1500KiB/s (1536kB/s), 375KiB/s-378KiB/s (384kB/s-387kB/s), io=40.0MiB (41.9MB), run=27079-27314msec 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=179979: Fri Aug 21 09:55:45 2026 read: IOPS=41, BW=164KiB/s (168kB/s)(5048KiB/30761msec) slat (usec): min=60, max=54140, avg=13509.46, stdev=7366.99 clat (msec): min=33, max=410, avg=178.85, stdev=49.66 lat (msec): min=34, max=433, avg=192.37, stdev=51.33 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 108], 10.00th=[ 123], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 268], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 401], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 43, max= 271, per=24.86%, avg=162.10, stdev=43.98, samples=60 iops : min= 10, max= 67, avg=40.10, stdev=11.09, samples=60 write: IOPS=42, BW=169KiB/s (173kB/s)(5192KiB/30761msec); 0 zone resets slat (usec): min=53, max=9777, avg=323.76, stdev=706.38 clat (msec): min=34, max=378, avg=187.28, stdev=48.40 lat (msec): min=34, max=378, avg=187.61, stdev=48.41 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 121], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 251], 95.00th=[ 279], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 359], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 21, max= 256, per=24.71%, avg=167.78, stdev=44.10, samples=60 iops : min= 5, max= 64, avg=41.55, stdev=11.13, samples=60 lat (msec) : 50=0.35%, 100=2.54%, 250=88.05%, 500=9.06% cpu : usr=0.21%, sys=2.01%, ctx=4310, 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=179980: Fri Aug 21 09:55:45 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(4976KiB/30659msec) slat (usec): min=2379, max=61926, avg=13111.93, stdev=7559.61 clat (msec): min=13, max=370, avg=179.56, stdev=48.13 lat (msec): min=31, max=418, avg=192.68, stdev=49.96 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 111], 10.00th=[ 121], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 201], 80.00th=[ 218], 90.00th=[ 239], 95.00th=[ 264], | 99.00th=[ 334], 99.50th=[ 347], 99.90th=[ 368], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 43, max= 280, per=24.78%, avg=161.57, stdev=43.37, samples=60 iops : min= 10, max= 70, avg=39.98, stdev=10.95, samples=60 write: IOPS=42, BW=172KiB/s (176kB/s)(5264KiB/30659msec); 0 zone resets slat (usec): min=55, max=12758, avg=348.89, stdev=854.11 clat (msec): min=59, max=380, avg=186.69, stdev=48.36 lat (msec): min=59, max=380, avg=187.04, stdev=48.34 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 117], 10.00th=[ 129], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 71, max= 298, per=25.33%, avg=172.02, stdev=46.35, samples=60 iops : min= 17, max= 74, avg=42.60, stdev=11.65, samples=60 lat (msec) : 20=0.04%, 100=2.11%, 250=89.53%, 500=8.32% cpu : usr=0.20%, sys=1.86%, ctx=4275, 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=179981: Fri Aug 21 09:55:45 2026 read: IOPS=41, BW=164KiB/s (168kB/s)(4984KiB/30377msec) slat (usec): min=63, max=82470, avg=13173.43, stdev=7590.54 clat (msec): min=14, max=407, avg=179.46, stdev=49.80 lat (msec): min=32, max=432, avg=192.64, stdev=52.06 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 243], 95.00th=[ 271], | 99.00th=[ 347], 99.50th=[ 372], 99.90th=[ 397], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 94, max= 271, per=25.12%, avg=163.80, stdev=40.47, samples=60 iops : min= 23, max= 67, avg=40.55, stdev=10.18, samples=60 write: IOPS=43, BW=173KiB/s (177kB/s)(5256KiB/30377msec); 0 zone resets slat (usec): min=52, max=17781, avg=333.66, stdev=963.09 clat (msec): min=77, max=416, avg=185.83, stdev=50.02 lat (msec): min=78, max=416, avg=186.16, stdev=50.05 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 113], 10.00th=[ 130], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 247], 95.00th=[ 275], | 99.00th=[ 359], 99.50th=[ 401], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 71, max= 280, per=25.31%, avg=171.88, stdev=51.33, samples=60 iops : min= 17, max= 70, avg=42.57, stdev=12.94, samples=60 lat (msec) : 20=0.04%, 100=2.19%, 250=88.71%, 500=9.06% cpu : usr=0.24%, sys=1.80%, ctx=4169, 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=179982: Fri Aug 21 09:55:45 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(5060KiB/30695msec) slat (usec): min=2713, max=58383, avg=13430.12, stdev=7627.69 clat (msec): min=57, max=384, avg=179.27, stdev=48.74 lat (msec): min=69, max=395, avg=192.70, stdev=50.62 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 110], 10.00th=[ 122], 20.00th=[ 138], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 199], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 268], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 50, max= 250, per=25.26%, avg=164.67, stdev=44.29, samples=60 iops : min= 12, max= 62, avg=40.77, stdev=11.14, samples=60 write: IOPS=42, BW=169KiB/s (173kB/s)(5180KiB/30695msec); 0 zone resets slat (usec): min=51, max=10743, avg=327.74, stdev=791.19 clat (msec): min=68, max=419, avg=186.86, stdev=50.15 lat (msec): min=69, max=419, avg=187.20, stdev=50.16 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 116], 10.00th=[ 128], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 279], | 99.00th=[ 334], 99.50th=[ 363], 99.90th=[ 405], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 50, max= 280, per=24.81%, avg=168.45, stdev=43.56, samples=60 iops : min= 12, max= 70, avg=41.68, stdev=10.98, samples=60 lat (msec) : 100=2.58%, 250=88.55%, 500=8.87% cpu : usr=0.23%, sys=1.93%, ctx=4375, 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=652KiB/s (668kB/s), 162KiB/s-165KiB/s (166kB/s-169kB/s), io=19.6MiB (20.5MB), run=30377-30761msec WRITE: bw=679KiB/s (695kB/s), 169KiB/s-173KiB/s (173kB/s-177kB/s), io=20.4MiB (21.4MB), run=30377-30761msec 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=179992: Fri Aug 21 09:55:55 2026 read: IOPS=2, BW=102MiB/s (107MB/s)(40.0MiB/392msec) slat (nsec): min=30232k, max=30232k, avg=30231826.00, stdev= 0.00 clat (nsec): min=339698k, max=339698k, avg=339697976.00, stdev= 0.00 lat (nsec): min=369934k, max=369934k, avg=369934192.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.58%, ctx=3, 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=102MiB/s (107MB/s), 102MiB/s-102MiB/s (107MB/s-107MB/s), io=40.0MiB (41.9MB), run=392-392msec 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