== sanity test 398c: run fio to test AIO ================= 13:32:40 (1772908360) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.165525 s, 253 MB/s osc.lustre-OST0000-osc-ffff8c71899c2000.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=152960: Sat Mar 7 13:33:21 2026 write: IOPS=68, BW=274KiB/s (280kB/s)(10.0MiB/37395msec); 0 zone resets slat (usec): min=46, max=2502, avg=250.31, stdev=150.27 clat (msec): min=94, max=394, avg=233.22, stdev=45.25 lat (msec): min=94, max=394, avg=233.47, stdev=45.25 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 163], 10.00th=[ 182], 20.00th=[ 201], | 30.00th=[ 211], 40.00th=[ 224], 50.00th=[ 234], 60.00th=[ 247], | 70.00th=[ 257], 80.00th=[ 271], 90.00th=[ 288], 95.00th=[ 305], | 99.00th=[ 338], 99.50th=[ 342], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 397] bw ( KiB/s): min= 192, max= 512, per=24.83%, avg=271.86, stdev=45.58, samples=74 iops : min= 48, max= 128, avg=67.95, stdev=11.40, samples=74 lat (msec) : 100=1.29%, 250=62.38%, 500=36.33% cpu : usr=0.13%, sys=1.37%, ctx=2833, 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=152961: Sat Mar 7 13:33:21 2026 write: IOPS=68, BW=274KiB/s (281kB/s)(10.0MiB/37382msec); 0 zone resets slat (usec): min=36, max=3208, avg=245.58, stdev=164.60 clat (msec): min=49, max=399, avg=233.21, stdev=46.54 lat (msec): min=49, max=400, avg=233.46, stdev=46.56 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 165], 10.00th=[ 182], 20.00th=[ 199], | 30.00th=[ 213], 40.00th=[ 224], 50.00th=[ 236], 60.00th=[ 247], | 70.00th=[ 257], 80.00th=[ 271], 90.00th=[ 288], 95.00th=[ 300], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 401] bw ( KiB/s): min= 200, max= 512, per=24.90%, avg=272.62, stdev=45.38, samples=74 iops : min= 50, max= 128, avg=68.14, stdev=11.36, samples=74 lat (msec) : 50=0.62%, 100=0.66%, 250=61.80%, 500=36.91% cpu : usr=0.16%, sys=1.31%, ctx=2796, 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=152962: Sat Mar 7 13:33:21 2026 write: IOPS=68, BW=275KiB/s (281kB/s)(10.0MiB/37288msec); 0 zone resets slat (usec): min=35, max=1659, avg=249.61, stdev=142.26 clat (msec): min=34, max=408, avg=232.68, stdev=47.61 lat (msec): min=34, max=408, avg=232.93, stdev=47.63 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 161], 10.00th=[ 180], 20.00th=[ 199], | 30.00th=[ 213], 40.00th=[ 224], 50.00th=[ 234], 60.00th=[ 245], | 70.00th=[ 257], 80.00th=[ 271], 90.00th=[ 288], 95.00th=[ 305], | 99.00th=[ 338], 99.50th=[ 359], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 409] bw ( KiB/s): min= 184, max= 615, per=24.94%, avg=273.04, stdev=54.18, samples=74 iops : min= 46, max= 153, avg=68.23, stdev=13.49, samples=74 lat (msec) : 50=0.62%, 100=0.66%, 250=62.38%, 500=36.33% cpu : usr=0.14%, sys=1.39%, ctx=2728, 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=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=152963: Sat Mar 7 13:33:21 2026 write: IOPS=68, BW=274KiB/s (281kB/s)(10.0MiB/37382msec); 0 zone resets slat (usec): min=49, max=1135, avg=253.84, stdev=136.07 clat (msec): min=42, max=399, avg=233.16, stdev=45.86 lat (msec): min=42, max=400, avg=233.41, stdev=45.86 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 161], 10.00th=[ 180], 20.00th=[ 201], | 30.00th=[ 213], 40.00th=[ 224], 50.00th=[ 234], 60.00th=[ 247], | 70.00th=[ 257], 80.00th=[ 271], 90.00th=[ 288], 95.00th=[ 305], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 401] bw ( KiB/s): min= 176, max= 512, per=24.84%, avg=271.97, stdev=47.96, samples=74 iops : min= 44, max= 128, avg=67.97, stdev=12.01, samples=74 lat (msec) : 50=0.04%, 100=1.13%, 250=62.38%, 500=36.45% cpu : usr=0.17%, sys=1.35%, ctx=2904, 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=1095KiB/s (1122kB/s), 274KiB/s-275KiB/s (280kB/s-281kB/s), io=40.0MiB (41.9MB), run=37288-37395msec 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=152978: Sat Mar 7 13:33:50 2026 read: IOPS=50, BW=201KiB/s (206kB/s)(5048KiB/25139msec) slat (usec): min=1142, max=9850, avg=3216.54, stdev=1149.54 clat (msec): min=5, max=168, avg=100.19, stdev=19.27 lat (msec): min=8, max=173, avg=103.41, stdev=19.47 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 73], 10.00th=[ 79], 20.00th=[ 86], | 30.00th=[ 91], 40.00th=[ 95], 50.00th=[ 100], 60.00th=[ 104], | 70.00th=[ 108], 80.00th=[ 114], 90.00th=[ 125], 95.00th=[ 133], | 99.00th=[ 157], 99.50th=[ 163], 99.90th=[ 165], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 128, max= 280, per=25.29%, avg=200.78, stdev=41.56, samples=49 iops : min= 32, max= 70, avg=50.16, stdev=10.38, samples=49 write: IOPS=51, BW=207KiB/s (211kB/s)(5192KiB/25139msec); 0 zone resets slat (usec): min=62, max=1961, avg=235.08, stdev=138.88 clat (msec): min=70, max=339, avg=208.36, stdev=41.41 lat (msec): min=70, max=340, avg=208.60, stdev=41.43 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 144], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 207], 60.00th=[ 218], | 70.00th=[ 228], 80.00th=[ 243], 90.00th=[ 259], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 330], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 128, max= 264, per=24.99%, avg=206.63, stdev=25.28, samples=49 iops : min= 32, max= 66, avg=51.63, stdev= 6.34, samples=49 lat (msec) : 10=0.04%, 20=0.08%, 50=0.23%, 100=25.39%, 250=66.72% lat (msec) : 500=7.54% cpu : usr=0.25%, sys=2.25%, ctx=4897, 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=152979: Sat Mar 7 13:33:50 2026 read: IOPS=49, BW=197KiB/s (202kB/s)(4976KiB/25246msec) slat (usec): min=1139, max=10045, avg=3163.62, stdev=1135.68 clat (msec): min=15, max=174, avg=99.86, stdev=19.10 lat (msec): min=19, max=178, avg=103.03, stdev=19.30 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 71], 10.00th=[ 78], 20.00th=[ 85], | 30.00th=[ 91], 40.00th=[ 95], 50.00th=[ 100], 60.00th=[ 104], | 70.00th=[ 108], 80.00th=[ 114], 90.00th=[ 125], 95.00th=[ 131], | 99.00th=[ 150], 99.50th=[ 159], 99.90th=[ 165], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 96, max= 288, per=24.75%, avg=196.50, stdev=43.56, samples=50 iops : min= 24, max= 72, avg=49.10, stdev=10.91, samples=50 write: IOPS=52, BW=209KiB/s (214kB/s)(5264KiB/25246msec); 0 zone resets slat (usec): min=61, max=1837, avg=232.22, stdev=136.52 clat (msec): min=77, max=340, avg=208.62, stdev=42.42 lat (msec): min=77, max=340, avg=208.85, stdev=42.43 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 207], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 245], 90.00th=[ 264], 95.00th=[ 279], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 144, max= 264, per=25.20%, avg=208.42, stdev=29.39, samples=50 iops : min= 36, max= 66, avg=52.08, stdev= 7.36, samples=50 lat (msec) : 20=0.16%, 50=0.16%, 100=24.61%, 250=66.09%, 500=8.98% cpu : usr=0.25%, sys=2.20%, ctx=4887, 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=152980: Sat Mar 7 13:33:50 2026 read: IOPS=49, BW=198KiB/s (202kB/s)(4984KiB/25235msec) slat (usec): min=1205, max=9363, avg=3208.63, stdev=1140.78 clat (msec): min=4, max=167, avg=99.96, stdev=18.84 lat (msec): min=8, max=170, avg=103.17, stdev=18.99 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 72], 10.00th=[ 79], 20.00th=[ 86], | 30.00th=[ 92], 40.00th=[ 95], 50.00th=[ 101], 60.00th=[ 104], | 70.00th=[ 109], 80.00th=[ 114], 90.00th=[ 125], 95.00th=[ 131], | 99.00th=[ 153], 99.50th=[ 157], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 112, max= 344, per=24.90%, avg=197.72, stdev=46.76, samples=50 iops : min= 28, max= 86, avg=49.40, stdev=11.69, samples=50 write: IOPS=52, BW=208KiB/s (213kB/s)(5256KiB/25235msec); 0 zone resets slat (usec): min=58, max=1087, avg=230.99, stdev=130.07 clat (msec): min=70, max=356, avg=208.52, stdev=42.59 lat (msec): min=70, max=357, avg=208.75, stdev=42.60 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 140], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 230], 80.00th=[ 243], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 313], 99.50th=[ 330], 99.90th=[ 342], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 160, max= 272, per=25.08%, avg=207.40, stdev=29.17, samples=50 iops : min= 40, max= 68, avg=51.82, stdev= 7.31, samples=50 lat (msec) : 10=0.08%, 20=0.08%, 50=0.16%, 100=24.34%, 250=67.66% lat (msec) : 500=7.70% cpu : usr=0.19%, sys=2.26%, ctx=4876, 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=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=152981: Sat Mar 7 13:33:50 2026 read: IOPS=50, BW=202KiB/s (207kB/s)(5060KiB/25090msec) slat (usec): min=89, max=10181, avg=3252.50, stdev=1196.87 clat (msec): min=5, max=294, avg=99.10, stdev=22.10 lat (msec): min=7, max=298, avg=102.36, stdev=22.32 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 70], 10.00th=[ 77], 20.00th=[ 84], | 30.00th=[ 91], 40.00th=[ 94], 50.00th=[ 100], 60.00th=[ 104], | 70.00th=[ 108], 80.00th=[ 113], 90.00th=[ 124], 95.00th=[ 133], | 99.00th=[ 159], 99.50th=[ 165], 99.90th=[ 251], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 120, max= 296, per=25.58%, avg=203.14, stdev=44.80, samples=49 iops : min= 30, max= 74, avg=50.76, stdev=11.18, samples=49 write: IOPS=51, BW=206KiB/s (211kB/s)(5180KiB/25090msec); 0 zone resets slat (usec): min=63, max=3672, avg=233.80, stdev=159.67 clat (msec): min=33, max=425, avg=209.45, stdev=45.43 lat (msec): min=34, max=426, avg=209.69, stdev=45.43 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 209], 60.00th=[ 220], | 70.00th=[ 232], 80.00th=[ 247], 90.00th=[ 264], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 388], 99.90th=[ 422], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 152, max= 276, per=24.94%, avg=206.27, stdev=30.03, samples=49 iops : min= 38, max= 69, avg=51.55, stdev= 7.53, samples=49 lat (msec) : 10=0.20%, 20=0.20%, 50=0.43%, 100=25.78%, 250=64.92% lat (msec) : 500=8.48% cpu : usr=0.28%, sys=2.20%, ctx=4839, 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=795KiB/s (814kB/s), 197KiB/s-202KiB/s (202kB/s-207kB/s), io=19.6MiB (20.5MB), run=25090-25246msec WRITE: bw=828KiB/s (847kB/s), 206KiB/s-209KiB/s (211kB/s-214kB/s), io=20.4MiB (21.4MB), run=25090-25246msec 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=152988: Sat Mar 7 13:33:54 2026 read: IOPS=7, BW=294MiB/s (308MB/s)(40.0MiB/136msec) slat (nsec): min=11287k, max=11287k, avg=11286696.00, stdev= 0.00 clat (nsec): min=118326k, max=118326k, avg=118325845.00, stdev= 0.00 lat (nsec): min=129617k, max=129617k, avg=129616829.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 118], 40.00th=[ 118], 50.00th=[ 118], 60.00th=[ 118], | 70.00th=[ 118], 80.00th=[ 118], 90.00th=[ 118], 95.00th=[ 118], | 99.00th=[ 118], 99.50th=[ 118], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.67%, ctx=36, majf=0, minf=8 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=294MiB/s (308MB/s), 294MiB/s-294MiB/s (308MB/s-308MB/s), io=40.0MiB (41.9MB), run=136-136msec 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