== sanity test 398c: run fio to test AIO ================= 18:12:39 (1786831959) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.372669 s, 113 MB/s osc.lustre-OST0000-osc-ffff904373d89000.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=180983: Sat Aug 15 18:13:12 2026 write: IOPS=108, BW=434KiB/s (445kB/s)(10.0MiB/23574msec); 0 zone resets slat (usec): min=52, max=23307, avg=265.18, stdev=835.96 clat (msec): min=19, max=268, avg=146.84, stdev=27.94 lat (msec): min=37, max=268, avg=147.11, stdev=27.90 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 108], 10.00th=[ 115], 20.00th=[ 125], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 146], 60.00th=[ 153], | 70.00th=[ 161], 80.00th=[ 169], 90.00th=[ 182], 95.00th=[ 197], | 99.00th=[ 222], 99.50th=[ 230], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 271] bw ( KiB/s): min= 286, max= 560, per=25.16%, avg=433.20, stdev=59.33, samples=46 iops : min= 71, max= 140, avg=107.93, stdev=14.88, samples=46 lat (msec) : 20=0.04%, 50=0.08%, 100=3.28%, 250=96.45%, 500=0.16% cpu : usr=0.20%, sys=1.33%, ctx=2735, 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=180984: Sat Aug 15 18:13:12 2026 write: IOPS=107, BW=431KiB/s (441kB/s)(10.0MiB/23773msec); 0 zone resets slat (usec): min=51, max=12064, avg=290.87, stdev=646.78 clat (msec): min=41, max=232, avg=147.37, stdev=26.43 lat (msec): min=41, max=232, avg=147.66, stdev=26.39 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 110], 10.00th=[ 116], 20.00th=[ 126], | 30.00th=[ 133], 40.00th=[ 140], 50.00th=[ 146], 60.00th=[ 150], | 70.00th=[ 159], 80.00th=[ 169], 90.00th=[ 186], 95.00th=[ 197], | 99.00th=[ 218], 99.50th=[ 220], 99.90th=[ 230], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 269, max= 520, per=24.99%, avg=430.32, stdev=62.65, samples=47 iops : min= 67, max= 130, avg=107.23, stdev=15.66, samples=47 lat (msec) : 50=0.04%, 100=1.56%, 250=98.40% cpu : usr=0.20%, sys=1.46%, ctx=3186, 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=180985: Sat Aug 15 18:13:12 2026 write: IOPS=107, BW=431KiB/s (441kB/s)(10.0MiB/23769msec); 0 zone resets slat (usec): min=52, max=16258, avg=270.11, stdev=696.04 clat (msec): min=22, max=232, avg=147.09, stdev=27.17 lat (msec): min=22, max=232, avg=147.36, stdev=27.17 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 110], 10.00th=[ 116], 20.00th=[ 125], | 30.00th=[ 133], 40.00th=[ 138], 50.00th=[ 144], 60.00th=[ 150], | 70.00th=[ 157], 80.00th=[ 169], 90.00th=[ 186], 95.00th=[ 199], | 99.00th=[ 220], 99.50th=[ 222], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 232] bw ( KiB/s): min= 241, max= 528, per=24.89%, avg=428.60, stdev=58.32, samples=47 iops : min= 60, max= 132, avg=106.79, stdev=14.57, samples=47 lat (msec) : 50=0.31%, 100=1.37%, 250=98.32% cpu : usr=0.13%, sys=1.43%, ctx=3008, 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=180986: Sat Aug 15 18:13:12 2026 write: IOPS=107, BW=431KiB/s (442kB/s)(10.0MiB/23735msec); 0 zone resets slat (usec): min=50, max=7239, avg=233.18, stdev=521.82 clat (msec): min=30, max=228, avg=146.99, stdev=26.00 lat (msec): min=31, max=228, avg=147.23, stdev=25.97 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 110], 10.00th=[ 115], 20.00th=[ 125], | 30.00th=[ 133], 40.00th=[ 140], 50.00th=[ 144], 60.00th=[ 153], | 70.00th=[ 159], 80.00th=[ 167], 90.00th=[ 184], 95.00th=[ 197], | 99.00th=[ 213], 99.50th=[ 215], 99.90th=[ 222], 99.95th=[ 226], | 99.99th=[ 230] bw ( KiB/s): min= 251, max= 512, per=25.01%, avg=430.68, stdev=65.40, samples=47 iops : min= 62, max= 128, avg=107.30, stdev=16.37, samples=47 lat (msec) : 50=0.16%, 100=0.62%, 250=99.22% cpu : usr=0.11%, sys=1.11%, ctx=2193, 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 Run status group 0 (all jobs): WRITE: bw=1723KiB/s (1764kB/s), 431KiB/s-434KiB/s (441kB/s-445kB/s), io=40.0MiB (41.9MB), run=23574-23773msec 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=181000: Sat Aug 15 18:13:44 2026 read: IOPS=51, BW=204KiB/s (209kB/s)(5048KiB/24731msec) slat (usec): min=2396, max=39567, avg=10779.80, stdev=5471.44 clat (msec): min=60, max=276, avg=145.64, stdev=31.84 lat (msec): min=68, max=291, avg=156.43, stdev=33.03 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 101], 10.00th=[ 107], 20.00th=[ 117], | 30.00th=[ 128], 40.00th=[ 134], 50.00th=[ 144], 60.00th=[ 153], | 70.00th=[ 161], 80.00th=[ 174], 90.00th=[ 186], 95.00th=[ 205], | 99.00th=[ 228], 99.50th=[ 239], 99.90th=[ 275], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 111, max= 280, per=25.03%, avg=203.00, stdev=37.94, samples=49 iops : min= 27, max= 70, avg=50.33, stdev= 9.60, samples=49 write: IOPS=52, BW=210KiB/s (215kB/s)(5192KiB/24731msec); 0 zone resets slat (usec): min=57, max=21017, avg=321.52, stdev=855.77 clat (msec): min=53, max=268, avg=150.47, stdev=31.11 lat (msec): min=53, max=269, avg=150.79, stdev=31.15 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 106], 10.00th=[ 114], 20.00th=[ 125], | 30.00th=[ 131], 40.00th=[ 140], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 192], 95.00th=[ 209], | 99.00th=[ 236], 99.50th=[ 247], 99.90th=[ 264], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 136, max= 295, per=24.79%, avg=209.27, stdev=41.92, samples=49 iops : min= 34, max= 73, avg=51.86, stdev=10.47, samples=49 lat (msec) : 100=3.71%, 250=95.98%, 500=0.31% cpu : usr=0.26%, sys=2.11%, ctx=4775, 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=181001: Sat Aug 15 18:13:44 2026 read: IOPS=50, BW=203KiB/s (208kB/s)(4976KiB/24550msec) slat (usec): min=2409, max=47219, avg=10525.66, stdev=5522.23 clat (msec): min=16, max=267, avg=143.55, stdev=32.14 lat (msec): min=21, max=273, avg=154.08, stdev=33.40 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 100], 10.00th=[ 107], 20.00th=[ 118], | 30.00th=[ 126], 40.00th=[ 133], 50.00th=[ 140], 60.00th=[ 148], | 70.00th=[ 157], 80.00th=[ 169], 90.00th=[ 184], 95.00th=[ 203], | 99.00th=[ 234], 99.50th=[ 245], 99.90th=[ 251], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 87, max= 304, per=24.88%, avg=201.79, stdev=45.03, samples=48 iops : min= 21, max= 76, avg=50.00, stdev=11.36, samples=48 write: IOPS=53, BW=214KiB/s (220kB/s)(5264KiB/24550msec); 0 zone resets slat (usec): min=60, max=11148, avg=308.51, stdev=734.72 clat (msec): min=36, max=298, avg=151.31, stdev=31.40 lat (msec): min=36, max=299, avg=151.62, stdev=31.43 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 105], 10.00th=[ 115], 20.00th=[ 127], | 30.00th=[ 134], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 165], 80.00th=[ 178], 90.00th=[ 194], 95.00th=[ 207], | 99.00th=[ 234], 99.50th=[ 245], 99.90th=[ 271], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 144, max= 294, per=25.48%, avg=215.04, stdev=37.20, samples=48 iops : min= 36, max= 73, avg=53.31, stdev= 9.35, samples=48 lat (msec) : 20=0.04%, 50=0.23%, 100=4.18%, 250=95.20%, 500=0.35% cpu : usr=0.32%, sys=2.09%, ctx=4782, 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=181002: Sat Aug 15 18:13:44 2026 read: IOPS=50, BW=202KiB/s (207kB/s)(4984KiB/24667msec) slat (usec): min=61, max=45934, avg=10771.26, stdev=5620.87 clat (msec): min=44, max=259, avg=146.05, stdev=32.23 lat (msec): min=50, max=270, avg=156.82, stdev=33.44 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 97], 10.00th=[ 108], 20.00th=[ 118], | 30.00th=[ 127], 40.00th=[ 136], 50.00th=[ 144], 60.00th=[ 153], | 70.00th=[ 163], 80.00th=[ 174], 90.00th=[ 188], 95.00th=[ 203], | 99.00th=[ 228], 99.50th=[ 239], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 119, max= 294, per=24.96%, avg=202.42, stdev=37.88, samples=48 iops : min= 29, max= 73, avg=50.17, stdev= 9.57, samples=48 write: IOPS=53, BW=213KiB/s (218kB/s)(5256KiB/24667msec); 0 zone resets slat (usec): min=51, max=29064, avg=349.41, stdev=1137.89 clat (msec): min=34, max=296, avg=150.91, stdev=31.10 lat (msec): min=34, max=296, avg=151.26, stdev=31.10 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 107], 10.00th=[ 115], 20.00th=[ 126], | 30.00th=[ 133], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 165], 80.00th=[ 178], 90.00th=[ 194], 95.00th=[ 205], | 99.00th=[ 228], 99.50th=[ 243], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 111, max= 296, per=25.16%, avg=212.31, stdev=45.84, samples=48 iops : min= 27, max= 74, avg=52.63, stdev=11.53, samples=48 lat (msec) : 50=0.16%, 100=4.18%, 250=95.39%, 500=0.27% cpu : usr=0.25%, sys=2.25%, ctx=4607, 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=181003: Sat Aug 15 18:13:44 2026 read: IOPS=51, BW=205KiB/s (210kB/s)(5060KiB/24712msec) slat (usec): min=2386, max=46110, avg=10638.13, stdev=5462.33 clat (msec): min=17, max=270, avg=145.58, stdev=32.86 lat (msec): min=28, max=296, avg=156.22, stdev=33.87 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 100], 10.00th=[ 108], 20.00th=[ 117], | 30.00th=[ 127], 40.00th=[ 134], 50.00th=[ 142], 60.00th=[ 150], | 70.00th=[ 159], 80.00th=[ 174], 90.00th=[ 192], 95.00th=[ 205], | 99.00th=[ 236], 99.50th=[ 245], 99.90th=[ 259], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 135, max= 288, per=25.11%, avg=203.61, stdev=38.00, samples=49 iops : min= 33, max= 72, avg=50.45, stdev= 9.60, samples=49 write: IOPS=52, BW=210KiB/s (215kB/s)(5180KiB/24712msec); 0 zone resets slat (usec): min=54, max=17728, avg=309.44, stdev=748.25 clat (msec): min=78, max=260, avg=150.68, stdev=29.48 lat (msec): min=79, max=260, avg=151.00, stdev=29.50 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 107], 10.00th=[ 113], 20.00th=[ 126], | 30.00th=[ 136], 40.00th=[ 142], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 190], 95.00th=[ 203], | 99.00th=[ 230], 99.50th=[ 239], 99.90th=[ 245], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 128, max= 320, per=24.71%, avg=208.53, stdev=41.75, samples=49 iops : min= 32, max= 80, avg=51.67, stdev=10.48, samples=49 lat (msec) : 20=0.04%, 100=3.63%, 250=96.09%, 500=0.23% cpu : usr=0.24%, sys=2.13%, ctx=4705, 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=811KiB/s (831kB/s), 202KiB/s-205KiB/s (207kB/s-210kB/s), io=19.6MiB (20.5MB), run=24550-24731msec WRITE: bw=845KiB/s (865kB/s), 210KiB/s-214KiB/s (215kB/s-220kB/s), io=20.4MiB (21.4MB), run=24550-24731msec 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=181011: Sat Aug 15 18:13:52 2026 read: IOPS=2, BW=96.9MiB/s (102MB/s)(40.0MiB/413msec) slat (nsec): min=34934k, max=34934k, avg=34933579.00, stdev= 0.00 clat (nsec): min=367005k, max=367005k, avg=367004961.00, stdev= 0.00 lat (nsec): min=401943k, max=401943k, avg=401942585.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.40%, ctx=13, 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=96.9MiB/s (102MB/s), 96.9MiB/s-96.9MiB/s (102MB/s-102MB/s), io=40.0MiB (41.9MB), run=413-413msec 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