== sanity test 398c: run fio to test AIO ================= 05:10:58 (1789031458) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.393505 s, 107 MB/s osc.lustre-OST0000-osc-ffff97d8887e3800.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=179489: Thu Sep 10 05:11:39 2026 write: IOPS=84, BW=339KiB/s (347kB/s)(10.0MiB/30193msec); 0 zone resets slat (usec): min=29, max=10012, avg=212.03, stdev=700.67 clat (msec): min=30, max=381, avg=188.30, stdev=48.39 lat (msec): min=30, max=381, avg=188.52, stdev=48.43 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 113], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 228], 90.00th=[ 255], 95.00th=[ 271], | 99.00th=[ 300], 99.50th=[ 326], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 198, max= 638, per=25.08%, avg=338.14, stdev=74.99, samples=59 iops : min= 49, max= 159, avg=84.15, stdev=18.78, samples=59 lat (msec) : 50=0.08%, 100=1.84%, 250=86.72%, 500=11.37% cpu : usr=0.15%, sys=0.80%, ctx=2347, 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=179490: Thu Sep 10 05:11:39 2026 write: IOPS=84, BW=337KiB/s (345kB/s)(10.0MiB/30361msec); 0 zone resets slat (usec): min=29, max=12628, avg=214.82, stdev=628.67 clat (msec): min=23, max=379, avg=188.71, stdev=48.79 lat (msec): min=23, max=379, avg=188.92, stdev=48.82 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 115], 10.00th=[ 130], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 176], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 211], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 376], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 229, max= 520, per=24.96%, avg=336.48, stdev=70.36, samples=60 iops : min= 57, max= 130, avg=83.78, stdev=17.63, samples=60 lat (msec) : 50=0.20%, 100=0.90%, 250=86.76%, 500=12.15% cpu : usr=0.21%, sys=0.91%, ctx=2839, 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=179491: Thu Sep 10 05:11:39 2026 write: IOPS=84, BW=338KiB/s (346kB/s)(10.0MiB/30314msec); 0 zone resets slat (usec): min=29, max=39847, avg=251.36, stdev=1104.91 clat (msec): min=18, max=381, avg=188.50, stdev=48.43 lat (msec): min=18, max=381, avg=188.76, stdev=48.44 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 255], 95.00th=[ 275], | 99.00th=[ 313], 99.50th=[ 321], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 240, max= 534, per=24.95%, avg=336.35, stdev=82.16, samples=60 iops : min= 60, max= 133, avg=83.70, stdev=20.55, samples=60 lat (msec) : 20=0.04%, 50=0.35%, 100=1.09%, 250=87.62%, 500=10.90% cpu : usr=0.17%, sys=1.01%, ctx=2937, 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=179492: Thu Sep 10 05:11:39 2026 write: IOPS=84, BW=337KiB/s (345kB/s)(10.0MiB/30382msec); 0 zone resets slat (usec): min=28, max=16977, avg=216.71, stdev=828.34 clat (msec): min=31, max=390, avg=188.79, stdev=48.47 lat (msec): min=31, max=390, avg=189.01, stdev=48.46 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 116], 10.00th=[ 129], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 330], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 213, max= 512, per=24.84%, avg=334.80, stdev=79.24, samples=60 iops : min= 53, max= 128, avg=83.35, stdev=19.82, samples=60 lat (msec) : 50=0.23%, 100=0.94%, 250=88.40%, 500=10.43% cpu : usr=0.18%, sys=0.90%, ctx=2462, 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 Run status group 0 (all jobs): WRITE: bw=1348KiB/s (1381kB/s), 337KiB/s-339KiB/s (345kB/s-347kB/s), io=40.0MiB (41.9MB), run=30193-30382msec 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=179507: Thu Sep 10 05:12:23 2026 read: IOPS=36, BW=148KiB/s (152kB/s)(5048KiB/34110msec) slat (usec): min=51, max=68121, avg=14886.20, stdev=8302.14 clat (msec): min=16, max=386, avg=202.78, stdev=51.95 lat (msec): min=20, max=430, avg=217.68, stdev=53.63 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 186], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 224], 80.00th=[ 241], 90.00th=[ 271], 95.00th=[ 309], | 99.00th=[ 351], 99.50th=[ 368], 99.90th=[ 376], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 79, max= 246, per=25.30%, avg=147.52, stdev=33.94, samples=67 iops : min= 19, max= 61, avg=36.40, stdev= 8.56, samples=67 write: IOPS=38, BW=152KiB/s (156kB/s)(5192KiB/34110msec); 0 zone resets slat (usec): min=30, max=25683, avg=281.33, stdev=1314.14 clat (msec): min=69, max=407, avg=207.97, stdev=47.81 lat (msec): min=69, max=407, avg=208.25, stdev=47.73 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 140], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 245], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 376], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 71, max= 240, per=25.07%, avg=151.91, stdev=38.81, samples=67 iops : min= 17, max= 60, avg=37.51, stdev= 9.78, samples=67 lat (msec) : 20=0.08%, 50=0.04%, 100=0.23%, 250=82.19%, 500=17.46% cpu : usr=0.32%, sys=1.67%, ctx=4460, 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=179508: Thu Sep 10 05:12:23 2026 read: IOPS=36, BW=145KiB/s (148kB/s)(4976KiB/34419msec) slat (usec): min=2452, max=61986, avg=14886.00, stdev=7971.16 clat (msec): min=41, max=387, avg=203.09, stdev=49.82 lat (msec): min=53, max=420, avg=217.98, stdev=51.41 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 224], 80.00th=[ 243], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 376], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 53, max= 232, per=24.73%, avg=144.19, stdev=37.30, samples=67 iops : min= 13, max= 58, avg=35.58, stdev= 9.43, samples=67 write: IOPS=38, BW=153KiB/s (157kB/s)(5264KiB/34419msec); 0 zone resets slat (usec): min=35, max=24363, avg=275.84, stdev=1117.25 clat (msec): min=73, max=393, avg=208.94, stdev=45.82 lat (msec): min=75, max=393, avg=209.22, stdev=45.84 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 144], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 247], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 79, max= 263, per=25.31%, avg=153.40, stdev=41.77, samples=67 iops : min= 19, max= 65, avg=37.88, stdev=10.46, samples=67 lat (msec) : 50=0.08%, 100=0.16%, 250=82.23%, 500=17.54% cpu : usr=0.28%, sys=1.70%, ctx=4426, 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=179509: Thu Sep 10 05:12:23 2026 read: IOPS=36, BW=145KiB/s (148kB/s)(4984KiB/34387msec) slat (usec): min=3088, max=63919, avg=15167.32, stdev=8552.75 clat (msec): min=76, max=367, avg=201.45, stdev=47.70 lat (msec): min=85, max=412, avg=216.64, stdev=49.75 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 65, max= 214, per=24.89%, avg=145.13, stdev=35.70, samples=67 iops : min= 16, max= 53, avg=35.81, stdev= 8.97, samples=67 write: IOPS=38, BW=153KiB/s (157kB/s)(5256KiB/34387msec); 0 zone resets slat (usec): min=30, max=14688, avg=246.50, stdev=848.46 clat (msec): min=115, max=398, avg=210.05, stdev=47.69 lat (msec): min=116, max=398, avg=210.29, stdev=47.71 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 245], 90.00th=[ 275], 95.00th=[ 305], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 393], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 71, max= 238, per=25.15%, avg=152.40, stdev=38.82, samples=67 iops : min= 17, max= 59, avg=37.64, stdev= 9.74, samples=67 lat (msec) : 100=0.08%, 250=84.02%, 500=15.90% cpu : usr=0.30%, sys=1.57%, ctx=4180, 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=179510: Thu Sep 10 05:12:23 2026 read: IOPS=36, BW=147KiB/s (151kB/s)(5060KiB/34401msec) slat (usec): min=2997, max=69946, avg=15090.42, stdev=8417.27 clat (msec): min=30, max=390, avg=201.11, stdev=49.10 lat (msec): min=45, max=415, avg=216.21, stdev=50.81 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 372], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 55, max= 262, per=25.32%, avg=147.60, stdev=38.81, samples=67 iops : min= 13, max= 65, avg=36.43, stdev= 9.76, samples=67 write: IOPS=37, BW=151KiB/s (154kB/s)(5180KiB/34401msec); 0 zone resets slat (usec): min=33, max=24663, avg=230.91, stdev=929.02 clat (msec): min=57, max=460, avg=210.50, stdev=51.43 lat (msec): min=57, max=460, avg=210.73, stdev=51.53 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 247], 90.00th=[ 279], 95.00th=[ 309], | 99.00th=[ 376], 99.50th=[ 426], 99.90th=[ 451], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 71, max= 232, per=24.89%, avg=150.81, stdev=37.64, samples=67 iops : min= 17, max= 58, avg=37.24, stdev= 9.48, samples=67 lat (msec) : 50=0.08%, 100=0.16%, 250=82.54%, 500=17.23% cpu : usr=0.34%, sys=1.56%, ctx=4691, 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=583KiB/s (597kB/s), 145KiB/s-148KiB/s (148kB/s-152kB/s), io=19.6MiB (20.5MB), run=34110-34419msec WRITE: bw=607KiB/s (622kB/s), 151KiB/s-153KiB/s (154kB/s-157kB/s), io=20.4MiB (21.4MB), run=34110-34419msec 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=179519: Thu Sep 10 05:12:35 2026 read: IOPS=1, BW=75.3MiB/s (78.0MB/s)(40.0MiB/531msec) slat (nsec): min=22811k, max=22811k, avg=22811022.00, stdev= 0.00 clat (nsec): min=487726k, max=487726k, avg=487726458.00, stdev= 0.00 lat (nsec): min=510543k, max=510543k, avg=510542755.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.41%, ctx=6, 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=75.3MiB/s (78.0MB/s), 75.3MiB/s-75.3MiB/s (78.0MB/s-78.0MB/s), io=40.0MiB (41.9MB), run=531-531msec 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