== sanity test 398c: run fio to test AIO ================= 21:37:16 (1788658636) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.458086 s, 91.6 MB/s osc.lustre-OST0000-osc-ffff8e73c493f800.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=180329: Sat Sep 5 21:37:48 2026 write: IOPS=110, BW=440KiB/s (451kB/s)(10.0MiB/23266msec); 0 zone resets slat (usec): min=28, max=13892, avg=188.62, stdev=572.83 clat (msec): min=13, max=310, avg=145.09, stdev=35.42 lat (msec): min=13, max=310, avg=145.28, stdev=35.39 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 95], 10.00th=[ 104], 20.00th=[ 118], | 30.00th=[ 127], 40.00th=[ 136], 50.00th=[ 144], 60.00th=[ 150], | 70.00th=[ 159], 80.00th=[ 169], 90.00th=[ 190], 95.00th=[ 209], | 99.00th=[ 255], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 313] bw ( KiB/s): min= 248, max= 597, per=25.03%, avg=438.57, stdev=74.84, samples=46 iops : min= 62, max= 149, avg=109.28, stdev=18.66, samples=46 lat (msec) : 20=0.04%, 50=0.08%, 100=7.50%, 250=91.21%, 500=1.17% cpu : usr=0.21%, sys=1.01%, ctx=3015, 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=180330: Sat Sep 5 21:37:48 2026 write: IOPS=109, BW=438KiB/s (449kB/s)(10.0MiB/23366msec); 0 zone resets slat (usec): min=28, max=7783, avg=179.16, stdev=525.36 clat (msec): min=55, max=313, avg=145.35, stdev=33.81 lat (msec): min=55, max=313, avg=145.53, stdev=33.82 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 96], 10.00th=[ 107], 20.00th=[ 121], | 30.00th=[ 127], 40.00th=[ 134], 50.00th=[ 142], 60.00th=[ 150], | 70.00th=[ 159], 80.00th=[ 171], 90.00th=[ 190], 95.00th=[ 207], | 99.00th=[ 224], 99.50th=[ 309], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 240, max= 638, per=24.93%, avg=436.78, stdev=80.71, samples=46 iops : min= 60, max= 159, avg=108.83, stdev=20.09, samples=46 lat (msec) : 100=6.09%, 250=93.28%, 500=0.62% cpu : usr=0.18%, sys=0.83%, ctx=2699, 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=180331: Sat Sep 5 21:37:48 2026 write: IOPS=109, BW=440KiB/s (450kB/s)(10.0MiB/23285msec); 0 zone resets slat (usec): min=24, max=15382, avg=187.87, stdev=601.45 clat (msec): min=21, max=313, avg=144.93, stdev=34.93 lat (msec): min=21, max=313, avg=145.12, stdev=34.93 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 95], 10.00th=[ 105], 20.00th=[ 120], | 30.00th=[ 127], 40.00th=[ 136], 50.00th=[ 142], 60.00th=[ 148], | 70.00th=[ 159], 80.00th=[ 171], 90.00th=[ 190], 95.00th=[ 205], | 99.00th=[ 234], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 256, max= 638, per=25.01%, avg=438.15, stdev=72.79, samples=46 iops : min= 64, max= 159, avg=109.17, stdev=18.14, samples=46 lat (msec) : 50=0.27%, 100=7.50%, 250=91.60%, 500=0.62% cpu : usr=0.18%, sys=1.00%, ctx=2927, 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=180332: Sat Sep 5 21:37:48 2026 write: IOPS=109, BW=438KiB/s (449kB/s)(10.0MiB/23366msec); 0 zone resets slat (usec): min=28, max=6609, avg=179.24, stdev=478.89 clat (msec): min=45, max=310, avg=145.29, stdev=33.94 lat (msec): min=46, max=310, avg=145.47, stdev=33.94 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 94], 10.00th=[ 106], 20.00th=[ 121], | 30.00th=[ 128], 40.00th=[ 134], 50.00th=[ 142], 60.00th=[ 148], | 70.00th=[ 159], 80.00th=[ 171], 90.00th=[ 190], 95.00th=[ 209], | 99.00th=[ 230], 99.50th=[ 305], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 192, max= 637, per=24.87%, avg=435.80, stdev=76.18, samples=46 iops : min= 48, max= 159, avg=108.59, stdev=18.96, samples=46 lat (msec) : 50=0.04%, 100=7.46%, 250=91.84%, 500=0.66% cpu : usr=0.19%, sys=0.92%, ctx=2882, 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=1753KiB/s (1795kB/s), 438KiB/s-440KiB/s (449kB/s-451kB/s), io=40.0MiB (41.9MB), run=23266-23366msec 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=180345: Sat Sep 5 21:38:21 2026 read: IOPS=48, BW=193KiB/s (197kB/s)(5048KiB/26212msec) slat (usec): min=37, max=42996, avg=11225.79, stdev=5938.22 clat (msec): min=33, max=333, avg=156.82, stdev=33.44 lat (msec): min=45, max=343, avg=168.05, stdev=34.55 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 107], 10.00th=[ 118], 20.00th=[ 131], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 174], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 211], | 99.00th=[ 249], 99.50th=[ 259], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 134, max= 287, per=25.26%, avg=192.20, stdev=31.99, samples=51 iops : min= 33, max= 71, avg=47.63, stdev= 8.00, samples=51 write: IOPS=49, BW=198KiB/s (203kB/s)(5192KiB/26212msec); 0 zone resets slat (usec): min=34, max=10503, avg=196.95, stdev=578.73 clat (msec): min=32, max=284, avg=158.96, stdev=31.82 lat (msec): min=33, max=284, avg=159.16, stdev=31.80 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 211], | 99.00th=[ 243], 99.50th=[ 249], 99.90th=[ 266], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 119, max= 280, per=24.97%, avg=197.78, stdev=37.64, samples=51 iops : min= 29, max= 70, avg=49.04, stdev= 9.47, samples=51 lat (msec) : 50=0.12%, 100=2.93%, 250=96.33%, 500=0.62% cpu : usr=0.21%, sys=1.72%, ctx=4402, 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=180346: Sat Sep 5 21:38:21 2026 read: IOPS=47, BW=189KiB/s (194kB/s)(4976KiB/26317msec) slat (usec): min=2520, max=41081, avg=11266.61, stdev=5591.52 clat (msec): min=17, max=253, avg=155.60, stdev=31.80 lat (msec): min=25, max=279, avg=166.87, stdev=32.89 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 108], 10.00th=[ 118], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 182], 90.00th=[ 197], 95.00th=[ 215], | 99.00th=[ 241], 99.50th=[ 247], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 95, max= 256, per=24.75%, avg=188.35, stdev=36.00, samples=52 iops : min= 23, max= 64, avg=46.65, stdev= 9.03, samples=52 write: IOPS=50, BW=200KiB/s (205kB/s)(5264KiB/26317msec); 0 zone resets slat (usec): min=25, max=6717, avg=182.57, stdev=433.25 clat (msec): min=72, max=260, avg=160.37, stdev=30.86 lat (msec): min=73, max=260, avg=160.55, stdev=30.87 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 114], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 203], 95.00th=[ 213], | 99.00th=[ 236], 99.50th=[ 245], 99.90th=[ 253], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 135, max= 328, per=25.26%, avg=200.04, stdev=42.79, samples=52 iops : min= 33, max= 82, avg=49.60, stdev=10.76, samples=52 lat (msec) : 20=0.04%, 50=0.04%, 100=1.99%, 250=97.70%, 500=0.23% cpu : usr=0.26%, sys=1.78%, ctx=4192, 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=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=180347: Sat Sep 5 21:38:21 2026 read: IOPS=47, BW=189KiB/s (194kB/s)(4984KiB/26347msec) slat (usec): min=2613, max=46719, avg=11266.58, stdev=5913.67 clat (msec): min=68, max=311, avg=154.38, stdev=32.92 lat (msec): min=79, max=322, avg=165.65, stdev=34.18 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 104], 10.00th=[ 115], 20.00th=[ 129], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 169], 80.00th=[ 182], 90.00th=[ 199], 95.00th=[ 215], | 99.00th=[ 247], 99.50th=[ 253], 99.90th=[ 268], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 88, max= 279, per=24.85%, avg=189.13, stdev=41.22, samples=52 iops : min= 22, max= 69, avg=46.87, stdev=10.32, samples=52 write: IOPS=49, BW=199KiB/s (204kB/s)(5256KiB/26347msec); 0 zone resets slat (usec): min=31, max=9309, avg=233.45, stdev=616.99 clat (msec): min=67, max=271, avg=161.76, stdev=29.99 lat (msec): min=67, max=271, avg=161.99, stdev=29.93 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 213], | 99.00th=[ 241], 99.50th=[ 249], 99.90th=[ 259], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 119, max= 264, per=25.08%, avg=198.62, stdev=34.14, samples=52 iops : min= 29, max= 66, avg=49.21, stdev= 8.61, samples=52 lat (msec) : 100=2.30%, 250=97.15%, 500=0.55% cpu : usr=0.23%, sys=1.83%, ctx=4805, 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=180348: Sat Sep 5 21:38:21 2026 read: IOPS=48, BW=192KiB/s (197kB/s)(5060KiB/26347msec) slat (usec): min=2247, max=38592, avg=11365.02, stdev=5613.37 clat (msec): min=58, max=275, avg=155.20, stdev=31.79 lat (msec): min=69, max=282, avg=166.57, stdev=32.77 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 107], 10.00th=[ 118], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 161], | 70.00th=[ 169], 80.00th=[ 180], 90.00th=[ 197], 95.00th=[ 209], | 99.00th=[ 253], 99.50th=[ 262], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 103, max= 264, per=25.16%, avg=191.50, stdev=33.53, samples=52 iops : min= 25, max= 66, avg=47.44, stdev= 8.49, samples=52 write: IOPS=49, BW=197KiB/s (201kB/s)(5180KiB/26347msec); 0 zone resets slat (usec): min=35, max=9944, avg=245.31, stdev=746.38 clat (msec): min=44, max=263, avg=161.05, stdev=30.95 lat (msec): min=44, max=263, avg=161.29, stdev=30.93 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 114], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 186], 90.00th=[ 203], 95.00th=[ 213], | 99.00th=[ 239], 99.50th=[ 247], 99.90th=[ 259], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 128, max= 287, per=24.64%, avg=195.17, stdev=36.53, samples=52 iops : min= 32, max= 71, avg=48.38, stdev= 9.10, samples=52 lat (msec) : 50=0.04%, 100=2.27%, 250=97.03%, 500=0.66% cpu : usr=0.25%, sys=1.88%, ctx=4591, 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=762KiB/s (780kB/s), 189KiB/s-193KiB/s (194kB/s-197kB/s), io=19.6MiB (20.5MB), run=26212-26347msec WRITE: bw=793KiB/s (812kB/s), 197KiB/s-200KiB/s (201kB/s-205kB/s), io=20.4MiB (21.4MB), run=26212-26347msec 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=180357: Sat Sep 5 21:38:30 2026 read: IOPS=2, BW=89.5MiB/s (93.8MB/s)(40.0MiB/447msec) slat (nsec): min=46126k, max=46126k, avg=46126277.00, stdev= 0.00 clat (nsec): min=383144k, max=383144k, avg=383143802.00, stdev= 0.00 lat (nsec): min=429274k, max=429274k, avg=429273584.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.91%, ctx=13, 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=89.5MiB/s (93.8MB/s), 89.5MiB/s-89.5MiB/s (93.8MB/s-93.8MB/s), io=40.0MiB (41.9MB), run=447-447msec 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