== sanity test 398c: run fio to test AIO ================= 09:53:17 (1787320397) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.352865 s, 119 MB/s osc.lustre-OST0000-osc-ffff8ca07ab1c000.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=179231: Fri Aug 21 09:53:51 2026 write: IOPS=100, BW=401KiB/s (411kB/s)(10.0MiB/25511msec); 0 zone resets slat (usec): min=52, max=12409, avg=331.29, stdev=759.08 clat (msec): min=21, max=360, avg=158.38, stdev=37.82 lat (msec): min=21, max=360, avg=158.71, stdev=37.84 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 105], 10.00th=[ 115], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 230], | 99.00th=[ 264], 99.50th=[ 338], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 248, max= 640, per=24.96%, avg=400.64, stdev=74.84, samples=50 iops : min= 62, max= 160, avg=99.72, stdev=18.75, samples=50 lat (msec) : 50=0.04%, 100=4.38%, 250=93.52%, 500=2.07% cpu : usr=0.16%, sys=1.32%, ctx=2541, 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=179232: Fri Aug 21 09:53:51 2026 write: IOPS=100, BW=403KiB/s (413kB/s)(10.0MiB/25409msec); 0 zone resets slat (usec): min=42, max=16496, avg=360.20, stdev=901.35 clat (msec): min=18, max=327, avg=157.65, stdev=37.67 lat (msec): min=19, max=327, avg=158.02, stdev=37.66 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 105], 10.00th=[ 113], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 259], 99.50th=[ 313], 99.90th=[ 317], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 248, max= 640, per=25.04%, avg=401.90, stdev=80.53, samples=50 iops : min= 62, max= 160, avg=100.04, stdev=20.15, samples=50 lat (msec) : 20=0.04%, 50=0.08%, 100=3.67%, 250=94.73%, 500=1.48% cpu : usr=0.13%, sys=1.33%, ctx=2662, 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=179233: Fri Aug 21 09:53:51 2026 write: IOPS=101, BW=405KiB/s (414kB/s)(10.0MiB/25300msec); 0 zone resets slat (usec): min=49, max=14554, avg=368.73, stdev=876.81 clat (msec): min=29, max=357, avg=157.49, stdev=38.29 lat (msec): min=29, max=357, avg=157.86, stdev=38.26 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 105], 10.00th=[ 113], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 224], | 99.00th=[ 275], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 239, max= 624, per=25.17%, avg=403.90, stdev=75.72, samples=50 iops : min= 59, max= 156, avg=100.52, stdev=18.94, samples=50 lat (msec) : 50=0.20%, 100=3.63%, 250=93.44%, 500=2.73% cpu : usr=0.19%, sys=1.49%, ctx=2991, 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=179234: Fri Aug 21 09:53:51 2026 write: IOPS=100, BW=401KiB/s (411kB/s)(10.0MiB/25515msec); 0 zone resets slat (usec): min=37, max=9779, avg=280.89, stdev=692.11 clat (msec): min=22, max=289, avg=158.31, stdev=37.78 lat (msec): min=23, max=289, avg=158.59, stdev=37.78 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 105], 10.00th=[ 113], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 199], 95.00th=[ 232], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 248, max= 632, per=24.84%, avg=398.64, stdev=75.94, samples=50 iops : min= 62, max= 158, avg=99.22, stdev=19.04, samples=50 lat (msec) : 50=0.04%, 100=2.93%, 250=93.91%, 500=3.12% cpu : usr=0.15%, sys=1.14%, ctx=2013, 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=1605KiB/s (1644kB/s), 401KiB/s-405KiB/s (411kB/s-414kB/s), io=40.0MiB (41.9MB), run=25300-25515msec 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=179248: Fri Aug 21 09:54:29 2026 read: IOPS=44, BW=177KiB/s (181kB/s)(5048KiB/28556msec) slat (usec): min=2907, max=53905, avg=12352.69, stdev=6465.69 clat (msec): min=75, max=338, avg=168.15, stdev=41.10 lat (msec): min=80, max=350, avg=180.51, stdev=42.49 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 104], 10.00th=[ 117], 20.00th=[ 133], | 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=[ 284], 99.50th=[ 313], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 86, max= 295, per=25.00%, avg=175.52, stdev=42.83, samples=56 iops : min= 21, max= 73, avg=43.46, stdev=10.69, samples=56 write: IOPS=45, BW=182KiB/s (186kB/s)(5192KiB/28556msec); 0 zone resets slat (usec): min=56, max=11553, avg=309.64, stdev=649.40 clat (msec): min=48, max=316, avg=173.20, stdev=40.15 lat (msec): min=48, max=317, avg=173.51, stdev=40.18 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 111], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 288], 99.50th=[ 296], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 50, max= 303, per=24.80%, avg=181.32, stdev=45.58, samples=56 iops : min= 12, max= 75, avg=44.93, stdev=11.38, samples=56 lat (msec) : 50=0.04%, 100=2.70%, 250=93.98%, 500=3.28% cpu : usr=0.22%, sys=2.09%, ctx=4734, 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=179249: Fri Aug 21 09:54:29 2026 read: IOPS=43, BW=175KiB/s (179kB/s)(4976KiB/28397msec) slat (usec): min=51, max=51906, avg=12375.16, stdev=6761.84 clat (msec): min=72, max=322, avg=169.66, stdev=42.62 lat (msec): min=75, max=329, avg=182.04, stdev=44.14 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 105], 10.00th=[ 118], 20.00th=[ 133], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 292], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 103, max= 303, per=24.89%, avg=174.73, stdev=38.74, samples=56 iops : min= 25, max= 75, avg=43.29, stdev= 9.69, samples=56 write: IOPS=46, BW=185KiB/s (190kB/s)(5264KiB/28397msec); 0 zone resets slat (usec): min=51, max=10600, avg=357.79, stdev=787.16 clat (msec): min=49, max=316, avg=172.41, stdev=41.62 lat (msec): min=50, max=317, avg=172.77, stdev=41.64 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 108], 10.00th=[ 121], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 205], 90.00th=[ 228], 95.00th=[ 243], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 79, max= 391, per=25.38%, avg=185.54, stdev=47.82, samples=56 iops : min= 19, max= 97, avg=46.00, stdev=11.97, samples=56 lat (msec) : 50=0.04%, 100=3.44%, 250=92.89%, 500=3.63% cpu : usr=0.25%, sys=2.13%, ctx=4560, 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=179250: Fri Aug 21 09:54:29 2026 read: IOPS=43, BW=175KiB/s (179kB/s)(4984KiB/28508msec) slat (usec): min=2367, max=42942, avg=12630.74, stdev=6436.65 clat (msec): min=52, max=320, avg=168.57, stdev=41.92 lat (msec): min=70, max=333, avg=181.21, stdev=43.05 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 106], 10.00th=[ 118], 20.00th=[ 133], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 101, max= 256, per=24.86%, avg=174.48, stdev=37.65, samples=56 iops : min= 25, max= 64, avg=43.21, stdev= 9.41, samples=56 write: IOPS=46, BW=184KiB/s (189kB/s)(5256KiB/28508msec); 0 zone resets slat (usec): min=54, max=14965, avg=333.69, stdev=727.90 clat (msec): min=78, max=309, avg=172.93, stdev=40.28 lat (msec): min=79, max=309, avg=173.27, stdev=40.30 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 109], 10.00th=[ 121], 20.00th=[ 138], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 205], 90.00th=[ 222], 95.00th=[ 241], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 103, max= 351, per=25.10%, avg=183.46, stdev=48.04, samples=56 iops : min= 25, max= 87, avg=45.45, stdev=11.99, samples=56 lat (msec) : 100=3.12%, 250=93.05%, 500=3.83% cpu : usr=0.18%, sys=1.96%, ctx=4521, 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=179251: Fri Aug 21 09:54:29 2026 read: IOPS=44, BW=178KiB/s (182kB/s)(5060KiB/28502msec) slat (usec): min=2669, max=45041, avg=12288.74, stdev=6397.38 clat (msec): min=38, max=319, avg=168.00, stdev=41.71 lat (msec): min=46, max=336, avg=180.29, stdev=42.84 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 132], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 203], 90.00th=[ 228], 95.00th=[ 241], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 98, max= 287, per=25.20%, avg=176.87, stdev=41.42, samples=56 iops : min= 24, max= 71, avg=43.80, stdev=10.34, samples=56 write: IOPS=45, BW=182KiB/s (186kB/s)(5180KiB/28502msec); 0 zone resets slat (usec): min=53, max=7831, avg=339.89, stdev=679.62 clat (msec): min=77, max=312, avg=173.48, stdev=39.26 lat (msec): min=77, max=312, avg=173.82, stdev=39.28 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 112], 10.00th=[ 125], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 209], 90.00th=[ 226], 95.00th=[ 236], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 98, max= 303, per=24.73%, avg=180.75, stdev=41.46, samples=56 iops : min= 24, max= 75, avg=44.79, stdev=10.32, samples=56 lat (msec) : 50=0.04%, 100=2.54%, 250=94.73%, 500=2.70% cpu : usr=0.22%, sys=2.06%, ctx=4480, 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=703KiB/s (720kB/s), 175KiB/s-178KiB/s (179kB/s-182kB/s), io=19.6MiB (20.5MB), run=28397-28556msec WRITE: bw=732KiB/s (749kB/s), 182KiB/s-185KiB/s (186kB/s-190kB/s), io=20.4MiB (21.4MB), run=28397-28556msec 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=179260: Fri Aug 21 09:54:38 2026 read: IOPS=1, BW=76.5MiB/s (80.2MB/s)(40.0MiB/523msec) slat (nsec): min=46146k, max=46146k, avg=46146040.00, stdev= 0.00 clat (nsec): min=444100k, max=444100k, avg=444100065.00, stdev= 0.00 lat (nsec): min=490251k, max=490251k, avg=490250870.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.92%, ctx=4, majf=0, minf=7 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=76.5MiB/s (80.2MB/s), 76.5MiB/s-76.5MiB/s (80.2MB/s-80.2MB/s), io=40.0MiB (41.9MB), run=523-523msec 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