== sanity test 398c: run fio to test AIO ================= 00:50:14 (1781239814) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.439984 s, 95.3 MB/s osc.lustre-OST0000-osc-ffff894e9da56000.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=150816: Fri Jun 12 00:50:51 2026 write: IOPS=93, BW=375KiB/s (384kB/s)(10.0MiB/27303msec); 0 zone resets slat (usec): min=37, max=22372, avg=400.29, stdev=1147.23 clat (msec): min=27, max=345, avg=170.02, stdev=42.76 lat (msec): min=29, max=346, avg=170.42, stdev=42.73 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 113], 10.00th=[ 123], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 330], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 238, max= 521, per=24.99%, avg=373.63, stdev=65.31, samples=54 iops : min= 59, max= 130, avg=93.02, stdev=16.33, samples=54 lat (msec) : 50=0.20%, 100=2.34%, 250=92.77%, 500=4.69% cpu : usr=0.27%, sys=1.69%, 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=150817: Fri Jun 12 00:50:51 2026 write: IOPS=93, BW=375KiB/s (384kB/s)(10.0MiB/27278msec); 0 zone resets slat (usec): min=36, max=16009, avg=377.30, stdev=1009.23 clat (msec): min=27, max=330, avg=169.36, stdev=41.54 lat (msec): min=28, max=330, avg=169.74, stdev=41.46 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 111], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 243], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 330] bw ( KiB/s): min= 200, max= 521, per=25.00%, avg=373.72, stdev=70.75, samples=54 iops : min= 50, max= 130, avg=93.06, stdev=17.65, samples=54 lat (msec) : 50=0.16%, 100=2.07%, 250=93.20%, 500=4.57% cpu : usr=0.19%, sys=1.57%, ctx=2549, 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=150818: Fri Jun 12 00:50:51 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27393msec); 0 zone resets slat (usec): min=38, max=15354, avg=338.03, stdev=960.24 clat (msec): min=21, max=334, avg=169.79, stdev=41.70 lat (msec): min=21, max=334, avg=170.13, stdev=41.71 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 112], 10.00th=[ 125], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 199], 90.00th=[ 224], 95.00th=[ 247], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 208, max= 525, per=24.96%, avg=373.13, stdev=67.91, samples=54 iops : min= 52, max= 131, avg=92.89, stdev=16.98, samples=54 lat (msec) : 50=0.12%, 100=2.38%, 250=93.16%, 500=4.34% cpu : usr=0.18%, sys=1.53%, ctx=2450, 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=150819: Fri Jun 12 00:50:51 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27391msec); 0 zone resets slat (usec): min=38, max=18179, avg=333.76, stdev=914.50 clat (msec): min=21, max=335, avg=169.88, stdev=41.87 lat (msec): min=22, max=335, avg=170.21, stdev=41.87 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 114], 10.00th=[ 125], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 230], 95.00th=[ 251], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 246, max= 517, per=24.96%, avg=373.17, stdev=70.55, samples=54 iops : min= 61, max= 129, avg=92.89, stdev=17.67, samples=54 lat (msec) : 50=0.16%, 100=1.80%, 250=92.85%, 500=5.20% cpu : usr=0.17%, sys=1.34%, ctx=2385, 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=1495KiB/s (1531kB/s), 374KiB/s-375KiB/s (383kB/s-384kB/s), io=40.0MiB (41.9MB), run=27278-27393msec 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=150834: Fri Jun 12 00:51:34 2026 read: IOPS=36, BW=148KiB/s (151kB/s)(5048KiB/34135msec) slat (usec): min=2791, max=71041, avg=15932.73, stdev=8550.86 clat (msec): min=74, max=474, avg=200.46, stdev=53.76 lat (msec): min=89, max=481, avg=216.41, stdev=56.17 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 184], 50.00th=[ 199], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 292], | 99.00th=[ 351], 99.50th=[ 414], 99.90th=[ 456], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 65, max= 223, per=25.21%, avg=147.96, stdev=35.48, samples=67 iops : min= 16, max= 55, avg=36.49, stdev= 8.90, samples=67 write: IOPS=38, BW=152KiB/s (156kB/s)(5192KiB/34135msec); 0 zone resets slat (usec): min=51, max=12256, avg=387.99, stdev=863.77 clat (msec): min=69, max=501, avg=206.21, stdev=51.76 lat (msec): min=69, max=501, avg=206.60, stdev=51.80 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 131], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 228], 80.00th=[ 245], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 351], 99.50th=[ 376], 99.90th=[ 472], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 60, max= 245, per=24.90%, avg=152.36, stdev=39.58, samples=67 iops : min= 15, max= 61, avg=37.61, stdev= 9.90, samples=67 lat (msec) : 100=0.78%, 250=82.46%, 500=16.72%, 750=0.04% cpu : usr=0.27%, sys=2.15%, ctx=4341, 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=150835: Fri Jun 12 00:51:34 2026 read: IOPS=36, BW=147KiB/s (150kB/s)(4976KiB/33862msec) slat (usec): min=52, max=68177, avg=15793.52, stdev=8269.96 clat (msec): min=78, max=698, avg=202.73, stdev=58.28 lat (msec): min=88, max=715, avg=218.53, stdev=60.63 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 184], 50.00th=[ 199], 60.00th=[ 213], | 70.00th=[ 226], 80.00th=[ 243], 90.00th=[ 271], 95.00th=[ 300], | 99.00th=[ 372], 99.50th=[ 405], 99.90th=[ 600], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 79, max= 238, per=25.07%, avg=147.18, stdev=33.60, samples=66 iops : min= 19, max= 59, avg=36.29, stdev= 8.42, samples=66 write: IOPS=38, BW=155KiB/s (159kB/s)(5264KiB/33862msec); 0 zone resets slat (usec): min=41, max=16716, avg=399.62, stdev=997.51 clat (msec): min=94, max=669, avg=204.06, stdev=54.24 lat (msec): min=94, max=669, avg=204.46, stdev=54.24 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 271], 95.00th=[ 305], | 99.00th=[ 351], 99.50th=[ 368], 99.90th=[ 558], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 72, max= 262, per=25.55%, avg=156.39, stdev=44.76, samples=66 iops : min= 18, max= 65, avg=38.64, stdev=11.23, samples=66 lat (msec) : 100=0.74%, 250=83.09%, 500=15.94%, 750=0.23% cpu : usr=0.30%, sys=2.30%, ctx=4327, 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=150836: Fri Jun 12 00:51:34 2026 read: IOPS=36, BW=146KiB/s (150kB/s)(4984KiB/34122msec) slat (usec): min=3243, max=77203, avg=15739.08, stdev=8758.37 clat (msec): min=67, max=400, avg=199.71, stdev=51.65 lat (msec): min=87, max=431, avg=215.46, stdev=54.22 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 121], 10.00th=[ 136], 20.00th=[ 157], | 30.00th=[ 171], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 241], 90.00th=[ 266], 95.00th=[ 292], | 99.00th=[ 338], 99.50th=[ 376], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 71, max= 226, per=24.94%, avg=146.40, stdev=41.57, samples=67 iops : min= 17, max= 56, avg=36.10, stdev=10.44, samples=67 write: IOPS=38, BW=154KiB/s (158kB/s)(5256KiB/34122msec); 0 zone resets slat (usec): min=39, max=14617, avg=423.86, stdev=1075.18 clat (msec): min=88, max=487, avg=208.21, stdev=52.35 lat (msec): min=88, max=487, avg=208.64, stdev=52.40 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 129], 10.00th=[ 146], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 251], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 485], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 71, max= 268, per=25.07%, avg=153.45, stdev=39.10, samples=67 iops : min= 17, max= 67, avg=37.90, stdev= 9.83, samples=67 lat (msec) : 100=0.90%, 250=81.48%, 500=17.62% cpu : usr=0.31%, sys=2.29%, ctx=4295, 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=150837: Fri Jun 12 00:51:34 2026 read: IOPS=37, BW=149KiB/s (153kB/s)(5060KiB/33857msec) slat (usec): min=3135, max=75187, avg=15337.05, stdev=8624.67 clat (msec): min=43, max=489, avg=199.08, stdev=54.81 lat (msec): min=66, max=538, avg=214.42, stdev=57.20 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 121], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 182], 50.00th=[ 194], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 241], 90.00th=[ 266], 95.00th=[ 292], | 99.00th=[ 372], 99.50th=[ 405], 99.90th=[ 468], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 71, max= 215, per=25.62%, avg=150.36, stdev=35.94, samples=66 iops : min= 17, max= 53, avg=37.11, stdev= 8.99, samples=66 write: IOPS=38, BW=153KiB/s (157kB/s)(5180KiB/33857msec); 0 zone resets slat (usec): min=55, max=27005, avg=413.57, stdev=1189.86 clat (msec): min=74, max=609, avg=205.60, stdev=55.50 lat (msec): min=74, max=610, avg=206.01, stdev=55.47 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 127], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 228], 80.00th=[ 243], 90.00th=[ 271], 95.00th=[ 300], | 99.00th=[ 384], 99.50th=[ 405], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 71, max= 276, per=25.06%, avg=153.39, stdev=44.21, samples=66 iops : min= 17, max= 69, avg=37.89, stdev=11.06, samples=66 lat (msec) : 50=0.04%, 100=0.55%, 250=83.05%, 500=16.25%, 750=0.12% cpu : usr=0.27%, sys=2.18%, ctx=4308, 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=588KiB/s (602kB/s), 146KiB/s-149KiB/s (150kB/s-153kB/s), io=19.6MiB (20.5MB), run=33857-34135msec WRITE: bw=612KiB/s (627kB/s), 152KiB/s-155KiB/s (156kB/s-159kB/s), io=20.4MiB (21.4MB), run=33857-34135msec 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=150846: Fri Jun 12 00:51:48 2026 read: IOPS=1, BW=58.9MiB/s (61.8MB/s)(40.0MiB/679msec) slat (nsec): min=58306k, max=58306k, avg=58305643.00, stdev= 0.00 clat (nsec): min=577679k, max=577679k, avg=577678636.00, stdev= 0.00 lat (nsec): min=635990k, max=635990k, avg=635990174.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.77%, ctx=7, majf=0, minf=10 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=58.9MiB/s (61.8MB/s), 58.9MiB/s-58.9MiB/s (61.8MB/s-61.8MB/s), io=40.0MiB (41.9MB), run=679-679msec 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