== sanity test 398c: run fio to test AIO ================= 16:21:01 (1775766061) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.48174 s, 87.1 MB/s osc.lustre-OST0000-osc-ffff978d50f44800.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=181359: Thu Apr 9 16:21:37 2026 write: IOPS=97, BW=389KiB/s (398kB/s)(10.0MiB/26321msec); 0 zone resets slat (usec): min=35, max=16210, avg=245.67, stdev=664.95 clat (msec): min=21, max=348, avg=164.07, stdev=44.47 lat (msec): min=21, max=348, avg=164.32, stdev=44.47 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 108], 10.00th=[ 114], 20.00th=[ 129], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 226], 95.00th=[ 249], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 199, max= 542, per=25.05%, avg=388.50, stdev=79.65, samples=52 iops : min= 49, max= 135, avg=96.71, stdev=19.95, samples=52 lat (msec) : 50=0.08%, 100=2.46%, 250=92.54%, 500=4.92% cpu : usr=0.17%, sys=1.16%, ctx=2284, majf=0, minf=8 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=181360: Thu Apr 9 16:21:37 2026 write: IOPS=96, BW=388KiB/s (397kB/s)(10.0MiB/26392msec); 0 zone resets slat (usec): min=38, max=11949, avg=235.57, stdev=591.73 clat (msec): min=24, max=373, avg=163.92, stdev=45.62 lat (msec): min=24, max=374, avg=164.16, stdev=45.62 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 108], 10.00th=[ 116], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 197], 90.00th=[ 222], 95.00th=[ 255], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 248, max= 552, per=24.94%, avg=386.77, stdev=79.99, samples=52 iops : min= 62, max= 138, avg=96.29, stdev=20.04, samples=52 lat (msec) : 50=0.20%, 100=2.58%, 250=91.80%, 500=5.43% cpu : usr=0.16%, sys=1.18%, ctx=2593, majf=0, minf=8 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=181361: Thu Apr 9 16:21:37 2026 write: IOPS=97, BW=388KiB/s (398kB/s)(10.0MiB/26368msec); 0 zone resets slat (usec): min=34, max=11685, avg=251.79, stdev=720.91 clat (msec): min=11, max=354, avg=163.86, stdev=46.19 lat (msec): min=12, max=354, avg=164.11, stdev=46.18 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 108], 10.00th=[ 114], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 197], 90.00th=[ 228], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 355] bw ( KiB/s): min= 231, max= 584, per=24.95%, avg=387.00, stdev=82.65, samples=52 iops : min= 57, max= 146, avg=96.37, stdev=20.73, samples=52 lat (msec) : 20=0.04%, 50=0.12%, 100=2.62%, 250=91.25%, 500=5.98% cpu : usr=0.13%, sys=1.09%, ctx=2099, 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=181362: Thu Apr 9 16:21:37 2026 write: IOPS=97, BW=388KiB/s (398kB/s)(10.0MiB/26366msec); 0 zone resets slat (usec): min=38, max=15521, avg=302.26, stdev=848.44 clat (msec): min=10, max=373, avg=163.73, stdev=45.37 lat (msec): min=10, max=373, avg=164.03, stdev=45.37 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 107], 10.00th=[ 114], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 228], 95.00th=[ 251], | 99.00th=[ 296], 99.50th=[ 347], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 376] bw ( KiB/s): min= 239, max= 536, per=25.01%, avg=387.87, stdev=78.35, samples=52 iops : min= 59, max= 134, avg=96.54, stdev=19.63, samples=52 lat (msec) : 20=0.04%, 50=0.20%, 100=3.01%, 250=91.88%, 500=4.88% cpu : usr=0.20%, sys=1.34%, ctx=3010, 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 Run status group 0 (all jobs): WRITE: bw=1552KiB/s (1589kB/s), 388KiB/s-389KiB/s (397kB/s-398kB/s), io=40.0MiB (41.9MB), run=26321-26392msec 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=181377: Thu Apr 9 16:22:21 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(5048KiB/32057msec) slat (usec): min=49, max=89659, avg=14029.19, stdev=8940.30 clat (msec): min=16, max=422, avg=189.71, stdev=57.03 lat (msec): min=27, max=441, avg=203.75, stdev=60.17 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 266], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 31, max= 232, per=25.27%, avg=156.40, stdev=38.62, samples=63 iops : min= 7, max= 58, avg=38.67, stdev= 9.73, samples=63 write: IOPS=40, BW=162KiB/s (166kB/s)(5192KiB/32057msec); 0 zone resets slat (usec): min=41, max=37177, avg=344.70, stdev=1305.02 clat (msec): min=55, max=415, avg=196.29, stdev=59.02 lat (msec): min=55, max=415, avg=196.64, stdev=59.06 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 174], 50.00th=[ 190], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 239], 90.00th=[ 279], 95.00th=[ 313], | 99.00th=[ 368], 99.50th=[ 380], 99.90th=[ 409], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 80, max= 288, per=25.02%, avg=161.40, stdev=44.63, samples=63 iops : min= 20, max= 72, avg=39.90, stdev=11.19, samples=63 lat (msec) : 20=0.04%, 50=0.04%, 100=1.91%, 250=82.34%, 500=15.66% cpu : usr=0.24%, sys=1.90%, ctx=4428, 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=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=181378: Thu Apr 9 16:22:21 2026 read: IOPS=38, BW=154KiB/s (157kB/s)(4976KiB/32373msec) slat (usec): min=2273, max=61296, avg=14072.34, stdev=8613.07 clat (msec): min=19, max=425, avg=192.49, stdev=57.46 lat (msec): min=34, max=453, avg=206.57, stdev=60.19 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 115], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 201], | 70.00th=[ 218], 80.00th=[ 239], 90.00th=[ 271], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 372], 99.90th=[ 393], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 71, max= 254, per=24.75%, avg=153.19, stdev=42.46, samples=64 iops : min= 17, max= 63, avg=37.83, stdev=10.68, samples=64 write: IOPS=40, BW=163KiB/s (167kB/s)(5264KiB/32373msec); 0 zone resets slat (usec): min=37, max=12302, avg=304.78, stdev=805.98 clat (msec): min=49, max=437, avg=196.47, stdev=58.38 lat (msec): min=52, max=437, avg=196.78, stdev=58.41 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 275], 95.00th=[ 313], | 99.00th=[ 368], 99.50th=[ 388], 99.90th=[ 435], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 71, max= 263, per=25.22%, avg=162.69, stdev=46.16, samples=64 iops : min= 17, max= 65, avg=40.22, stdev=11.56, samples=64 lat (msec) : 20=0.04%, 50=0.08%, 100=1.25%, 250=82.34%, 500=16.29% cpu : usr=0.26%, sys=1.79%, ctx=4636, 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=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=181379: Thu Apr 9 16:22:21 2026 read: IOPS=38, BW=154KiB/s (158kB/s)(4984KiB/32297msec) slat (usec): min=2418, max=90030, avg=14339.48, stdev=8879.58 clat (msec): min=27, max=411, avg=192.56, stdev=57.22 lat (msec): min=43, max=433, avg=206.90, stdev=60.06 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 116], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 218], 80.00th=[ 243], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 376], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 83, max= 263, per=24.89%, avg=154.05, stdev=40.39, samples=64 iops : min= 20, max= 65, avg=38.05, stdev=10.13, samples=64 write: IOPS=40, BW=163KiB/s (167kB/s)(5256KiB/32297msec); 0 zone resets slat (usec): min=47, max=22399, avg=348.30, stdev=1167.99 clat (msec): min=88, max=427, avg=194.53, stdev=56.37 lat (msec): min=88, max=427, avg=194.88, stdev=56.36 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 121], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 222], 80.00th=[ 241], 90.00th=[ 271], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 388], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 71, max= 280, per=25.09%, avg=161.83, stdev=50.32, samples=64 iops : min= 17, max= 70, avg=40.02, stdev=12.63, samples=64 lat (msec) : 50=0.04%, 100=0.94%, 250=82.70%, 500=16.33% cpu : usr=0.24%, sys=1.76%, ctx=4161, 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=181380: Thu Apr 9 16:22:21 2026 read: IOPS=39, BW=156KiB/s (160kB/s)(5060KiB/32383msec) slat (usec): min=2058, max=62652, avg=14277.12, stdev=8368.53 clat (msec): min=32, max=392, avg=192.34, stdev=56.93 lat (msec): min=40, max=417, avg=206.62, stdev=59.55 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 112], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 63, max= 248, per=25.18%, avg=155.89, stdev=38.52, samples=64 iops : min= 15, max= 62, avg=38.55, stdev= 9.67, samples=64 write: IOPS=39, BW=160KiB/s (164kB/s)(5180KiB/32383msec); 0 zone resets slat (usec): min=38, max=12305, avg=279.35, stdev=671.71 clat (msec): min=84, max=406, avg=195.82, stdev=58.95 lat (msec): min=84, max=406, avg=196.11, stdev=58.95 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 188], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 279], 95.00th=[ 313], | 99.00th=[ 372], 99.50th=[ 380], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 79, max= 284, per=24.65%, avg=159.02, stdev=47.95, samples=64 iops : min= 19, max= 71, avg=39.30, stdev=12.07, samples=64 lat (msec) : 50=0.04%, 100=1.68%, 250=82.66%, 500=15.62% cpu : usr=0.23%, sys=1.86%, ctx=4423, 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=620KiB/s (635kB/s), 154KiB/s-157KiB/s (157kB/s-161kB/s), io=19.6MiB (20.5MB), run=32057-32383msec WRITE: bw=645KiB/s (661kB/s), 160KiB/s-163KiB/s (164kB/s-167kB/s), io=20.4MiB (21.4MB), run=32057-32383msec 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=181388: Thu Apr 9 16:22:31 2026 read: IOPS=2, BW=87.3MiB/s (91.6MB/s)(40.0MiB/458msec) slat (nsec): min=28032k, max=28032k, avg=28032449.00, stdev= 0.00 clat (nsec): min=410640k, max=410640k, avg=410640389.00, stdev= 0.00 lat (nsec): min=438677k, max=438677k, avg=438677029.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.75%, ctx=5, 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=87.3MiB/s (91.6MB/s), 87.3MiB/s-87.3MiB/s (91.6MB/s-91.6MB/s), io=40.0MiB (41.9MB), run=458-458msec 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