== sanity test 398c: run fio to test AIO ================= 11:21:46 (1776871306) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.14639 s, 287 MB/s osc.lustre-OST0000-osc-ffffa071904d0000.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=156006: Wed Apr 22 11:22:19 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29889msec); 0 zone resets slat (usec): min=45, max=853, avg=224.55, stdev=106.43 clat (msec): min=57, max=293, avg=186.37, stdev=37.37 lat (msec): min=57, max=293, avg=186.60, stdev=37.39 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 128], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 232], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 296] bw ( KiB/s): min= 248, max= 615, per=24.84%, avg=340.32, stdev=55.55, samples=59 iops : min= 62, max= 153, avg=85.07, stdev=13.82, samples=59 lat (msec) : 100=3.16%, 250=93.28%, 500=3.55% cpu : usr=0.15%, sys=1.52%, ctx=2983, 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=156007: Wed Apr 22 11:22:19 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29870msec); 0 zone resets slat (usec): min=50, max=997, avg=220.35, stdev=105.15 clat (msec): min=43, max=303, avg=186.27, stdev=37.79 lat (msec): min=43, max=303, avg=186.49, stdev=37.80 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 131], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 232], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 305] bw ( KiB/s): min= 256, max= 634, per=24.91%, avg=341.32, stdev=57.45, samples=59 iops : min= 64, max= 158, avg=85.32, stdev=14.32, samples=59 lat (msec) : 50=0.62%, 100=2.03%, 250=93.52%, 500=3.83% cpu : usr=0.17%, sys=1.47%, ctx=2933, 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=156008: Wed Apr 22 11:22:19 2026 write: IOPS=85, BW=343KiB/s (351kB/s)(10.0MiB/29857msec); 0 zone resets slat (usec): min=42, max=869, avg=234.66, stdev=99.17 clat (msec): min=39, max=337, avg=186.14, stdev=38.58 lat (msec): min=39, max=338, avg=186.37, stdev=38.59 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 129], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 232], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 300], 99.95th=[ 330], | 99.99th=[ 338] bw ( KiB/s): min= 256, max= 628, per=24.96%, avg=341.90, stdev=57.68, samples=59 iops : min= 64, max= 157, avg=85.47, stdev=14.42, samples=59 lat (msec) : 50=0.62%, 100=2.03%, 250=93.55%, 500=3.79% cpu : usr=0.17%, sys=1.60%, ctx=2930, 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=156009: Wed Apr 22 11:22:19 2026 write: IOPS=85, BW=344KiB/s (352kB/s)(10.0MiB/29789msec); 0 zone resets slat (usec): min=57, max=1046, avg=234.57, stdev=99.95 clat (msec): min=19, max=355, avg=185.82, stdev=38.89 lat (msec): min=19, max=355, avg=186.06, stdev=38.89 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 126], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 232], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 305], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 248, max= 692, per=24.98%, avg=342.17, stdev=61.05, samples=59 iops : min= 62, max= 173, avg=85.54, stdev=15.26, samples=59 lat (msec) : 20=0.04%, 50=0.31%, 100=2.73%, 250=92.85%, 500=4.06% cpu : usr=0.14%, sys=1.62%, ctx=3005, 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=1370KiB/s (1403kB/s), 343KiB/s-344KiB/s (351kB/s-352kB/s), io=40.0MiB (41.9MB), run=29789-29889msec 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=156023: Wed Apr 22 11:22:42 2026 read: IOPS=64, BW=257KiB/s (263kB/s)(5048KiB/19632msec) slat (usec): min=1065, max=5624, avg=2406.34, stdev=731.22 clat (msec): min=4, max=120, avg=78.70, stdev=14.63 lat (msec): min=6, max=121, avg=81.11, stdev=14.69 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 68], | 30.00th=[ 72], 40.00th=[ 77], 50.00th=[ 80], 60.00th=[ 84], | 70.00th=[ 88], 80.00th=[ 91], 90.00th=[ 95], 95.00th=[ 100], | 99.00th=[ 108], 99.50th=[ 112], 99.90th=[ 116], 99.95th=[ 122], | 99.99th=[ 122] bw ( KiB/s): min= 160, max= 400, per=25.12%, avg=256.50, stdev=46.15, samples=38 iops : min= 40, max= 100, avg=64.11, stdev=11.56, samples=38 write: IOPS=66, BW=264KiB/s (271kB/s)(5192KiB/19632msec); 0 zone resets slat (usec): min=58, max=919, avg=191.91, stdev=87.50 clat (msec): min=71, max=278, avg=162.27, stdev=34.99 lat (msec): min=71, max=278, avg=162.46, stdev=35.00 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 104], 10.00th=[ 115], 20.00th=[ 133], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 220], | 99.00th=[ 245], 99.50th=[ 253], 99.90th=[ 271], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 184, max= 336, per=24.69%, avg=262.42, stdev=35.89, samples=38 iops : min= 46, max= 84, avg=65.61, stdev= 8.97, samples=38 lat (msec) : 10=0.08%, 20=0.43%, 50=0.31%, 100=48.28%, 250=50.51% lat (msec) : 500=0.39% cpu : usr=0.22%, sys=2.35%, ctx=4895, 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=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=156024: Wed Apr 22 11:22:42 2026 read: IOPS=63, BW=253KiB/s (259kB/s)(4976KiB/19641msec) slat (usec): min=1041, max=4997, avg=2372.91, stdev=696.35 clat (msec): min=2, max=116, avg=77.93, stdev=14.64 lat (msec): min=5, max=119, avg=80.30, stdev=14.72 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 67], | 30.00th=[ 71], 40.00th=[ 74], 50.00th=[ 79], 60.00th=[ 83], | 70.00th=[ 87], 80.00th=[ 90], 90.00th=[ 95], 95.00th=[ 101], | 99.00th=[ 109], 99.50th=[ 113], 99.90th=[ 116], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 176, max= 368, per=24.57%, avg=250.89, stdev=49.18, samples=38 iops : min= 44, max= 92, avg=62.71, stdev=12.30, samples=38 write: IOPS=67, BW=268KiB/s (274kB/s)(5264KiB/19641msec); 0 zone resets slat (usec): min=56, max=663, avg=191.90, stdev=85.86 clat (msec): min=29, max=272, avg=162.13, stdev=35.82 lat (msec): min=29, max=272, avg=162.32, stdev=35.82 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 103], 10.00th=[ 113], 20.00th=[ 130], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 209], 95.00th=[ 224], | 99.00th=[ 241], 99.50th=[ 251], 99.90th=[ 264], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 208, max= 384, per=24.93%, avg=265.00, stdev=34.26, samples=38 iops : min= 52, max= 96, avg=66.24, stdev= 8.58, samples=38 lat (msec) : 4=0.04%, 10=0.04%, 20=0.39%, 50=0.94%, 100=46.99% lat (msec) : 250=51.33%, 500=0.27% cpu : usr=0.19%, sys=2.36%, ctx=4833, 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=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=156025: Wed Apr 22 11:22:42 2026 read: IOPS=63, BW=254KiB/s (261kB/s)(4984KiB/19591msec) slat (usec): min=1082, max=5797, avg=2406.90, stdev=705.31 clat (msec): min=6, max=124, avg=78.25, stdev=14.41 lat (msec): min=9, max=126, avg=80.66, stdev=14.48 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 68], | 30.00th=[ 71], 40.00th=[ 75], 50.00th=[ 80], 60.00th=[ 83], | 70.00th=[ 87], 80.00th=[ 90], 90.00th=[ 95], 95.00th=[ 101], | 99.00th=[ 108], 99.50th=[ 110], 99.90th=[ 117], 99.95th=[ 125], | 99.99th=[ 125] bw ( KiB/s): min= 168, max= 384, per=25.02%, avg=255.45, stdev=47.70, samples=38 iops : min= 42, max= 96, avg=63.84, stdev=11.93, samples=38 write: IOPS=67, BW=268KiB/s (275kB/s)(5256KiB/19591msec); 0 zone resets slat (usec): min=52, max=695, avg=189.60, stdev=84.09 clat (msec): min=62, max=272, avg=161.35, stdev=35.34 lat (msec): min=63, max=272, avg=161.54, stdev=35.35 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 104], 10.00th=[ 113], 20.00th=[ 131], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 207], 95.00th=[ 222], | 99.00th=[ 243], 99.50th=[ 253], 99.90th=[ 271], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 184, max= 408, per=25.04%, avg=266.18, stdev=44.54, samples=38 iops : min= 46, max= 102, avg=66.53, stdev=11.15, samples=38 lat (msec) : 10=0.08%, 20=0.43%, 50=0.55%, 100=47.58%, 250=51.02% lat (msec) : 500=0.35% cpu : usr=0.21%, sys=2.35%, ctx=4816, 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=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=156026: Wed Apr 22 11:22:42 2026 read: IOPS=65, BW=261KiB/s (267kB/s)(5060KiB/19423msec) slat (usec): min=176, max=5866, avg=2379.06, stdev=724.41 clat (msec): min=3, max=161, avg=77.73, stdev=15.63 lat (msec): min=5, max=164, avg=80.11, stdev=15.71 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 58], 10.00th=[ 62], 20.00th=[ 68], | 30.00th=[ 71], 40.00th=[ 74], 50.00th=[ 79], 60.00th=[ 82], | 70.00th=[ 86], 80.00th=[ 90], 90.00th=[ 95], 95.00th=[ 101], | 99.00th=[ 110], 99.50th=[ 115], 99.90th=[ 146], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 160, max= 368, per=25.57%, avg=261.11, stdev=51.71, samples=38 iops : min= 40, max= 92, avg=65.26, stdev=12.92, samples=38 write: IOPS=66, BW=267KiB/s (273kB/s)(5180KiB/19423msec); 0 zone resets slat (usec): min=54, max=730, avg=189.13, stdev=86.25 clat (msec): min=29, max=275, avg=161.34, stdev=36.76 lat (msec): min=29, max=275, avg=161.53, stdev=36.77 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 100], 10.00th=[ 113], 20.00th=[ 132], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 207], 95.00th=[ 222], | 99.00th=[ 245], 99.50th=[ 259], 99.90th=[ 271], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 184, max= 376, per=24.96%, avg=265.34, stdev=39.76, samples=38 iops : min= 46, max= 94, avg=66.32, stdev= 9.94, samples=38 lat (msec) : 4=0.04%, 10=0.20%, 20=0.62%, 50=0.74%, 100=47.97% lat (msec) : 250=50.00%, 500=0.43% cpu : usr=0.16%, sys=2.41%, ctx=4937, majf=0, minf=15 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=1022KiB/s (1046kB/s), 253KiB/s-261KiB/s (259kB/s-267kB/s), io=19.6MiB (20.5MB), run=19423-19641msec WRITE: bw=1064KiB/s (1089kB/s), 264KiB/s-268KiB/s (271kB/s-275kB/s), io=20.4MiB (21.4MB), run=19423-19641msec 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=156032: Wed Apr 22 11:22:45 2026 read: IOPS=9, BW=388MiB/s (407MB/s)(40.0MiB/103msec) slat (nsec): min=10111k, max=10111k, avg=10111442.00, stdev= 0.00 clat (nsec): min=88764k, max=88764k, avg=88763823.00, stdev= 0.00 lat (nsec): min=98879k, max=98879k, avg=98879491.00, stdev= 0.00 clat percentiles (usec): | 1.00th=[88605], 5.00th=[88605], 10.00th=[88605], 20.00th=[88605], | 30.00th=[88605], 40.00th=[88605], 50.00th=[88605], 60.00th=[88605], | 70.00th=[88605], 80.00th=[88605], 90.00th=[88605], 95.00th=[88605], | 99.00th=[88605], 99.50th=[88605], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] lat (msec) : 100=100.00% cpu : usr=0.00%, sys=7.84%, ctx=43, 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=388MiB/s (407MB/s), 388MiB/s-388MiB/s (407MB/s-407MB/s), io=40.0MiB (41.9MB), run=103-103msec 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