== sanity test 398c: run fio to test AIO ================= 17:35:25 (1786570525) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.234736 s, 179 MB/s osc.lustre-OST0000-osc-ffff991fc324c000.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=181325: Wed Aug 12 17:35:48 2026 write: IOPS=146, BW=587KiB/s (601kB/s)(10.0MiB/17443msec); 0 zone resets slat (usec): min=48, max=4879, avg=219.00, stdev=346.19 clat (msec): min=16, max=203, avg=108.21, stdev=18.51 lat (msec): min=17, max=203, avg=108.43, stdev=18.50 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 81], 10.00th=[ 88], 20.00th=[ 94], | 30.00th=[ 99], 40.00th=[ 103], 50.00th=[ 107], 60.00th=[ 112], | 70.00th=[ 117], 80.00th=[ 123], 90.00th=[ 132], 95.00th=[ 140], | 99.00th=[ 161], 99.50th=[ 165], 99.90th=[ 165], 99.95th=[ 171], | 99.99th=[ 203] bw ( KiB/s): min= 448, max= 736, per=24.99%, avg=586.82, stdev=68.88, samples=34 iops : min= 112, max= 184, avg=146.44, stdev=17.31, samples=34 lat (msec) : 20=0.04%, 50=0.08%, 100=35.04%, 250=64.84% cpu : usr=0.23%, sys=1.77%, ctx=2766, 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=181326: Wed Aug 12 17:35:48 2026 write: IOPS=147, BW=588KiB/s (602kB/s)(10.0MiB/17413msec); 0 zone resets slat (usec): min=41, max=3682, avg=208.93, stdev=305.11 clat (msec): min=16, max=238, avg=108.26, stdev=20.56 lat (msec): min=16, max=238, avg=108.47, stdev=20.56 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 81], 10.00th=[ 87], 20.00th=[ 94], | 30.00th=[ 99], 40.00th=[ 103], 50.00th=[ 107], 60.00th=[ 112], | 70.00th=[ 116], 80.00th=[ 123], 90.00th=[ 133], 95.00th=[ 140], | 99.00th=[ 161], 99.50th=[ 171], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 448, max= 704, per=25.17%, avg=591.06, stdev=63.30, samples=34 iops : min= 112, max= 176, avg=147.50, stdev=15.91, samples=34 lat (msec) : 20=0.08%, 50=0.70%, 100=34.41%, 250=64.80% cpu : usr=0.22%, sys=1.72%, ctx=2809, 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=181327: Wed Aug 12 17:35:48 2026 write: IOPS=147, BW=590KiB/s (604kB/s)(10.0MiB/17358msec); 0 zone resets slat (usec): min=36, max=6705, avg=211.36, stdev=407.34 clat (msec): min=42, max=245, avg=108.16, stdev=19.94 lat (msec): min=42, max=245, avg=108.37, stdev=19.95 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 80], 10.00th=[ 87], 20.00th=[ 93], | 30.00th=[ 99], 40.00th=[ 103], 50.00th=[ 108], 60.00th=[ 111], | 70.00th=[ 116], 80.00th=[ 124], 90.00th=[ 133], 95.00th=[ 142], | 99.00th=[ 161], 99.50th=[ 163], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 448, max= 758, per=25.11%, avg=589.47, stdev=72.19, samples=34 iops : min= 112, max= 189, avg=147.09, stdev=18.08, samples=34 lat (msec) : 50=0.62%, 100=34.26%, 250=65.12% cpu : usr=0.22%, sys=1.57%, ctx=2568, 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=181328: Wed Aug 12 17:35:48 2026 write: IOPS=146, BW=587KiB/s (601kB/s)(10.0MiB/17442msec); 0 zone resets slat (usec): min=37, max=6662, avg=225.97, stdev=392.74 clat (msec): min=59, max=204, avg=108.35, stdev=18.27 lat (msec): min=59, max=204, avg=108.57, stdev=18.26 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 82], 10.00th=[ 87], 20.00th=[ 94], | 30.00th=[ 99], 40.00th=[ 103], 50.00th=[ 107], 60.00th=[ 111], | 70.00th=[ 116], 80.00th=[ 124], 90.00th=[ 133], 95.00th=[ 140], | 99.00th=[ 155], 99.50th=[ 165], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 205] bw ( KiB/s): min= 440, max= 710, per=25.00%, avg=586.94, stdev=63.13, samples=34 iops : min= 110, max= 177, avg=146.47, stdev=15.85, samples=34 lat (msec) : 100=34.45%, 250=65.55% cpu : usr=0.24%, sys=1.71%, ctx=2819, 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=2348KiB/s (2405kB/s), 587KiB/s-590KiB/s (601kB/s-604kB/s), io=40.0MiB (41.9MB), run=17358-17443msec 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=181340: Wed Aug 12 17:36:12 2026 read: IOPS=65, BW=261KiB/s (267kB/s)(5048KiB/19329msec) slat (usec): min=2081, max=35544, avg=7869.27, stdev=3789.72 clat (msec): min=53, max=215, avg=114.18, stdev=22.42 lat (msec): min=57, max=218, avg=122.05, stdev=22.96 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 81], 10.00th=[ 87], 20.00th=[ 95], | 30.00th=[ 102], 40.00th=[ 108], 50.00th=[ 113], 60.00th=[ 120], | 70.00th=[ 125], 80.00th=[ 132], 90.00th=[ 144], 95.00th=[ 155], | 99.00th=[ 176], 99.50th=[ 184], 99.90th=[ 207], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 191, max= 351, per=25.12%, avg=260.79, stdev=41.93, samples=38 iops : min= 47, max= 87, avg=64.87, stdev=10.43, samples=38 write: IOPS=67, BW=269KiB/s (275kB/s)(5192KiB/19329msec); 0 zone resets slat (usec): min=51, max=10468, avg=239.34, stdev=481.17 clat (msec): min=36, max=195, avg=118.00, stdev=21.02 lat (msec): min=37, max=195, avg=118.24, stdev=21.05 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 86], 10.00th=[ 92], 20.00th=[ 100], | 30.00th=[ 107], 40.00th=[ 112], 50.00th=[ 117], 60.00th=[ 124], | 70.00th=[ 129], 80.00th=[ 136], 90.00th=[ 146], 95.00th=[ 155], | 99.00th=[ 169], 99.50th=[ 178], 99.90th=[ 186], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 199, max= 344, per=24.84%, avg=268.26, stdev=45.17, samples=38 iops : min= 49, max= 86, avg=66.76, stdev=11.36, samples=38 lat (msec) : 50=0.04%, 100=24.84%, 250=75.12% cpu : usr=0.22%, sys=2.39%, ctx=4699, 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=181341: Wed Aug 12 17:36:12 2026 read: IOPS=64, BW=257KiB/s (264kB/s)(4976KiB/19326msec) slat (usec): min=2080, max=31989, avg=8044.09, stdev=3819.85 clat (msec): min=27, max=231, avg=114.24, stdev=23.46 lat (msec): min=38, max=249, avg=122.29, stdev=24.10 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 81], 10.00th=[ 87], 20.00th=[ 94], | 30.00th=[ 102], 40.00th=[ 107], 50.00th=[ 112], 60.00th=[ 118], | 70.00th=[ 125], 80.00th=[ 133], 90.00th=[ 144], 95.00th=[ 155], | 99.00th=[ 178], 99.50th=[ 194], 99.90th=[ 222], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 184, max= 384, per=24.71%, avg=256.47, stdev=44.86, samples=38 iops : min= 46, max= 96, avg=63.82, stdev=11.23, samples=38 write: IOPS=68, BW=272KiB/s (279kB/s)(5264KiB/19326msec); 0 zone resets slat (usec): min=59, max=5241, avg=248.53, stdev=422.54 clat (msec): min=47, max=209, avg=118.14, stdev=22.13 lat (msec): min=47, max=209, avg=118.40, stdev=22.13 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 87], 10.00th=[ 93], 20.00th=[ 100], | 30.00th=[ 106], 40.00th=[ 112], 50.00th=[ 117], 60.00th=[ 123], | 70.00th=[ 128], 80.00th=[ 134], 90.00th=[ 146], 95.00th=[ 159], | 99.00th=[ 186], 99.50th=[ 201], 99.90th=[ 207], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 184, max= 376, per=25.19%, avg=272.11, stdev=47.84, samples=38 iops : min= 46, max= 94, avg=67.71, stdev=11.95, samples=38 lat (msec) : 50=0.12%, 100=24.41%, 250=75.47% cpu : usr=0.30%, sys=2.35%, ctx=4751, 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=181342: Wed Aug 12 17:36:12 2026 read: IOPS=64, BW=258KiB/s (264kB/s)(4984KiB/19319msec) slat (usec): min=1982, max=34765, avg=8136.59, stdev=3836.72 clat (msec): min=13, max=206, avg=113.98, stdev=23.06 lat (msec): min=28, max=214, avg=122.12, stdev=23.53 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 80], 10.00th=[ 87], 20.00th=[ 94], | 30.00th=[ 101], 40.00th=[ 108], 50.00th=[ 113], 60.00th=[ 118], | 70.00th=[ 126], 80.00th=[ 132], 90.00th=[ 146], 95.00th=[ 155], | 99.00th=[ 171], 99.50th=[ 184], 99.90th=[ 205], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 162, max= 367, per=24.90%, avg=258.42, stdev=44.25, samples=38 iops : min= 40, max= 91, avg=64.29, stdev=11.03, samples=38 write: IOPS=68, BW=272KiB/s (279kB/s)(5256KiB/19319msec); 0 zone resets slat (usec): min=38, max=5446, avg=231.09, stdev=360.12 clat (msec): min=63, max=194, avg=117.70, stdev=20.59 lat (msec): min=63, max=194, avg=117.93, stdev=20.60 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 87], 10.00th=[ 93], 20.00th=[ 101], | 30.00th=[ 106], 40.00th=[ 111], 50.00th=[ 116], 60.00th=[ 123], | 70.00th=[ 128], 80.00th=[ 134], 90.00th=[ 144], 95.00th=[ 155], | 99.00th=[ 176], 99.50th=[ 180], 99.90th=[ 188], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 168, max= 352, per=25.11%, avg=271.21, stdev=47.59, samples=38 iops : min= 42, max= 88, avg=67.50, stdev=11.99, samples=38 lat (msec) : 20=0.04%, 50=0.12%, 100=24.61%, 250=75.23% cpu : usr=0.30%, sys=2.25%, ctx=4762, 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=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=181343: Wed Aug 12 17:36:12 2026 read: IOPS=65, BW=264KiB/s (270kB/s)(5060KiB/19189msec) slat (usec): min=189, max=31840, avg=8131.13, stdev=3972.83 clat (msec): min=37, max=199, avg=113.58, stdev=22.85 lat (msec): min=38, max=206, avg=121.72, stdev=23.41 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 80], 10.00th=[ 86], 20.00th=[ 94], | 30.00th=[ 101], 40.00th=[ 107], 50.00th=[ 113], 60.00th=[ 120], | 70.00th=[ 126], 80.00th=[ 133], 90.00th=[ 144], 95.00th=[ 153], | 99.00th=[ 167], 99.50th=[ 176], 99.90th=[ 194], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 184, max= 343, per=25.28%, avg=262.37, stdev=38.98, samples=38 iops : min= 46, max= 85, avg=65.29, stdev= 9.74, samples=38 write: IOPS=67, BW=270KiB/s (276kB/s)(5180KiB/19189msec); 0 zone resets slat (usec): min=57, max=8878, avg=234.96, stdev=406.42 clat (msec): min=38, max=189, avg=117.58, stdev=20.47 lat (msec): min=38, max=189, avg=117.82, stdev=20.47 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 86], 10.00th=[ 92], 20.00th=[ 101], | 30.00th=[ 106], 40.00th=[ 112], 50.00th=[ 117], 60.00th=[ 123], | 70.00th=[ 129], 80.00th=[ 136], 90.00th=[ 144], 95.00th=[ 153], | 99.00th=[ 169], 99.50th=[ 176], 99.90th=[ 190], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 176, max= 344, per=24.87%, avg=268.58, stdev=41.58, samples=38 iops : min= 44, max= 86, avg=66.82, stdev=10.37, samples=38 lat (msec) : 50=0.20%, 100=23.95%, 250=75.86% cpu : usr=0.31%, sys=2.38%, ctx=4803, 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=1038KiB/s (1063kB/s), 257KiB/s-264KiB/s (264kB/s-270kB/s), io=19.6MiB (20.5MB), run=19189-19329msec WRITE: bw=1081KiB/s (1107kB/s), 269KiB/s-272KiB/s (275kB/s-279kB/s), io=20.4MiB (21.4MB), run=19189-19329msec 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=181351: Wed Aug 12 17:36:18 2026 read: IOPS=3, BW=145MiB/s (152MB/s)(40.0MiB/276msec) slat (nsec): min=18775k, max=18775k, avg=18775265.00, stdev= 0.00 clat (nsec): min=243812k, max=243812k, avg=243812369.00, stdev= 0.00 lat (nsec): min=262592k, max=262592k, avg=262592039.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 245], 90.00th=[ 245], 95.00th=[ 245], | 99.00th=[ 245], 99.50th=[ 245], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=4.36%, 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=145MiB/s (152MB/s), 145MiB/s-145MiB/s (152MB/s-152MB/s), io=40.0MiB (41.9MB), run=276-276msec 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