== sanity test 398c: run fio to test AIO ================= 14:55:49 (1790880949) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.139055 s, 302 MB/s osc.lustre-OST0000-osc-ffff98feb8d69000.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=159295: Thu Oct 1 14:56:24 2026 write: IOPS=78, BW=316KiB/s (323kB/s)(10.0MiB/32455msec); 0 zone resets slat (usec): min=25, max=641, avg=124.69, stdev=60.67 clat (msec): min=40, max=382, avg=202.54, stdev=39.34 lat (msec): min=40, max=382, avg=202.66, stdev=39.34 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 140], 10.00th=[ 161], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 192], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 234], 90.00th=[ 251], 95.00th=[ 268], | 99.00th=[ 300], 99.50th=[ 305], 99.90th=[ 355], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 232, max= 521, per=24.94%, avg=314.77, stdev=47.28, samples=64 iops : min= 58, max= 130, avg=78.69, stdev=11.80, samples=64 lat (msec) : 50=0.62%, 100=0.08%, 250=89.34%, 500=9.96% cpu : usr=0.11%, sys=0.88%, ctx=2778, 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=159296: Thu Oct 1 14:56:24 2026 write: IOPS=79, BW=316KiB/s (324kB/s)(10.0MiB/32391msec); 0 zone resets slat (usec): min=27, max=2391, avg=123.67, stdev=75.30 clat (msec): min=29, max=376, avg=202.20, stdev=40.90 lat (msec): min=30, max=376, avg=202.33, stdev=40.91 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 142], 10.00th=[ 159], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 192], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 376] bw ( KiB/s): min= 224, max= 618, per=24.94%, avg=314.78, stdev=52.48, samples=64 iops : min= 56, max= 154, avg=78.69, stdev=13.07, samples=64 lat (msec) : 50=0.66%, 100=0.23%, 250=88.91%, 500=10.20% cpu : usr=0.13%, sys=0.85%, ctx=2765, 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=159297: Thu Oct 1 14:56:24 2026 write: IOPS=78, BW=316KiB/s (323kB/s)(10.0MiB/32455msec); 0 zone resets slat (usec): min=25, max=626, avg=122.56, stdev=61.55 clat (msec): min=59, max=353, avg=202.53, stdev=38.30 lat (msec): min=59, max=353, avg=202.66, stdev=38.31 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 142], 10.00th=[ 161], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 192], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 251], 95.00th=[ 264], | 99.00th=[ 300], 99.50th=[ 305], 99.90th=[ 326], 99.95th=[ 330], | 99.99th=[ 355] bw ( KiB/s): min= 256, max= 515, per=24.93%, avg=314.67, stdev=45.87, samples=64 iops : min= 64, max= 128, avg=78.66, stdev=11.41, samples=64 lat (msec) : 100=0.66%, 250=89.38%, 500=9.96% cpu : usr=0.14%, sys=0.83%, ctx=2737, 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=159298: Thu Oct 1 14:56:24 2026 write: IOPS=78, BW=316KiB/s (323kB/s)(10.0MiB/32455msec); 0 zone resets slat (usec): min=30, max=561, avg=125.46, stdev=61.89 clat (msec): min=22, max=327, avg=202.51, stdev=38.71 lat (msec): min=23, max=328, avg=202.63, stdev=38.71 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 142], 10.00th=[ 159], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 251], 95.00th=[ 266], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 330] bw ( KiB/s): min= 208, max= 528, per=24.91%, avg=314.38, stdev=48.14, samples=64 iops : min= 52, max= 132, avg=78.59, stdev=12.04, samples=64 lat (msec) : 50=0.12%, 100=1.05%, 250=88.63%, 500=10.20% cpu : usr=0.12%, sys=0.86%, ctx=2835, 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=1262KiB/s (1292kB/s), 316KiB/s-316KiB/s (323kB/s-324kB/s), io=40.0MiB (41.9MB), run=32391-32455msec 3% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=159312: Thu Oct 1 14:56:52 2026 read: IOPS=51, BW=205KiB/s (210kB/s)(5048KiB/24671msec) slat (usec): min=1099, max=7168, avg=2941.56, stdev=1014.83 clat (msec): min=2, max=196, avg=95.72, stdev=20.00 lat (msec): min=5, max=199, avg=98.66, stdev=20.05 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 67], 10.00th=[ 74], 20.00th=[ 82], | 30.00th=[ 87], 40.00th=[ 91], 50.00th=[ 96], 60.00th=[ 101], | 70.00th=[ 105], 80.00th=[ 112], 90.00th=[ 120], 95.00th=[ 127], | 99.00th=[ 140], 99.50th=[ 148], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 96, max= 304, per=25.08%, avg=203.94, stdev=42.80, samples=49 iops : min= 24, max= 76, avg=50.98, stdev=10.70, samples=49 write: IOPS=52, BW=210KiB/s (216kB/s)(5192KiB/24671msec); 0 zone resets slat (usec): min=37, max=2788, avg=117.90, stdev=95.47 clat (msec): min=98, max=355, avg=207.39, stdev=42.29 lat (msec): min=98, max=355, avg=207.51, stdev=42.29 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 176], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 207], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 241], 90.00th=[ 259], 95.00th=[ 284], | 99.00th=[ 317], 99.50th=[ 338], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 144, max= 280, per=24.78%, avg=209.63, stdev=34.33, samples=49 iops : min= 36, max= 70, avg=52.41, stdev= 8.58, samples=49 lat (msec) : 4=0.08%, 10=0.16%, 20=0.23%, 50=0.16%, 100=29.38% lat (msec) : 250=62.46%, 500=7.54% cpu : usr=0.19%, sys=1.38%, ctx=5045, 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=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=159313: Thu Oct 1 14:56:52 2026 read: IOPS=50, BW=202KiB/s (207kB/s)(4976KiB/24616msec) slat (usec): min=38, max=7410, avg=2995.37, stdev=1073.87 clat (msec): min=2, max=249, avg=95.45, stdev=20.81 lat (msec): min=5, max=253, avg=98.45, stdev=20.98 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 68], 10.00th=[ 74], 20.00th=[ 81], | 30.00th=[ 86], 40.00th=[ 91], 50.00th=[ 95], 60.00th=[ 100], | 70.00th=[ 105], 80.00th=[ 111], 90.00th=[ 118], 95.00th=[ 127], | 99.00th=[ 142], 99.50th=[ 171], 99.90th=[ 249], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 104, max= 288, per=24.86%, avg=202.12, stdev=45.10, samples=48 iops : min= 26, max= 72, avg=50.52, stdev=11.26, samples=48 write: IOPS=53, BW=214KiB/s (219kB/s)(5264KiB/24616msec); 0 zone resets slat (usec): min=37, max=3452, avg=116.12, stdev=109.52 clat (msec): min=36, max=351, avg=205.88, stdev=45.57 lat (msec): min=36, max=351, avg=205.99, stdev=45.58 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 243], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 317], 99.50th=[ 326], 99.90th=[ 342], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 152, max= 288, per=25.24%, avg=213.54, stdev=36.39, samples=48 iops : min= 38, max= 72, avg=53.38, stdev= 9.08, samples=48 lat (msec) : 4=0.08%, 10=0.27%, 20=0.08%, 50=0.47%, 100=29.65% lat (msec) : 250=61.21%, 500=8.24% cpu : usr=0.17%, sys=1.40%, ctx=5011, 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=159314: Thu Oct 1 14:56:52 2026 read: IOPS=50, BW=202KiB/s (207kB/s)(4984KiB/24671msec) slat (usec): min=1139, max=8219, avg=2930.08, stdev=1044.06 clat (msec): min=3, max=192, avg=95.37, stdev=18.43 lat (msec): min=7, max=194, avg=98.30, stdev=18.52 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 68], 10.00th=[ 74], 20.00th=[ 81], | 30.00th=[ 86], 40.00th=[ 91], 50.00th=[ 95], 60.00th=[ 100], | 70.00th=[ 105], 80.00th=[ 111], 90.00th=[ 118], 95.00th=[ 126], | 99.00th=[ 138], 99.50th=[ 140], 99.90th=[ 146], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 104, max= 320, per=24.85%, avg=202.02, stdev=46.18, samples=49 iops : min= 26, max= 80, avg=50.49, stdev=11.54, samples=49 write: IOPS=53, BW=213KiB/s (218kB/s)(5256KiB/24671msec); 0 zone resets slat (usec): min=30, max=2035, avg=115.08, stdev=76.25 clat (msec): min=65, max=347, avg=206.57, stdev=42.65 lat (msec): min=65, max=348, avg=206.69, stdev=42.65 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 138], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 226], 80.00th=[ 241], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 152, max= 272, per=24.97%, avg=211.22, stdev=26.55, samples=49 iops : min= 38, max= 68, avg=52.80, stdev= 6.63, samples=49 lat (msec) : 4=0.04%, 10=0.04%, 20=0.20%, 50=0.08%, 100=30.70% lat (msec) : 250=61.37%, 500=7.58% cpu : usr=0.18%, sys=1.38%, ctx=4994, 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=159315: Thu Oct 1 14:56:52 2026 read: IOPS=51, BW=205KiB/s (210kB/s)(5060KiB/24648msec) slat (usec): min=1119, max=7018, avg=2948.39, stdev=1036.41 clat (msec): min=3, max=190, avg=95.33, stdev=18.33 lat (msec): min=7, max=191, avg=98.28, stdev=18.44 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 75], 20.00th=[ 82], | 30.00th=[ 87], 40.00th=[ 91], 50.00th=[ 96], 60.00th=[ 100], | 70.00th=[ 105], 80.00th=[ 110], 90.00th=[ 117], 95.00th=[ 124], | 99.00th=[ 138], 99.50th=[ 140], 99.90th=[ 188], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 128, max= 320, per=25.35%, avg=206.13, stdev=45.27, samples=48 iops : min= 32, max= 80, avg=51.52, stdev=11.32, samples=48 write: IOPS=52, BW=210KiB/s (215kB/s)(5180KiB/24648msec); 0 zone resets slat (usec): min=30, max=571, avg=117.19, stdev=59.83 clat (msec): min=83, max=344, avg=207.71, stdev=42.09 lat (msec): min=84, max=344, avg=207.82, stdev=42.09 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 205], 60.00th=[ 215], | 70.00th=[ 228], 80.00th=[ 243], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 313], 99.50th=[ 334], 99.90th=[ 342], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 152, max= 272, per=24.74%, avg=209.33, stdev=28.17, samples=48 iops : min= 38, max= 68, avg=52.33, stdev= 7.04, samples=48 lat (msec) : 4=0.08%, 10=0.16%, 20=0.08%, 50=0.16%, 100=30.04% lat (msec) : 250=61.52%, 500=7.97% cpu : usr=0.18%, sys=1.40%, ctx=5057, 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=813KiB/s (833kB/s), 202KiB/s-205KiB/s (207kB/s-210kB/s), io=19.6MiB (20.5MB), run=24616-24671msec WRITE: bw=847KiB/s (867kB/s), 210KiB/s-214KiB/s (215kB/s-219kB/s), io=20.4MiB (21.4MB), run=24616-24671msec 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=159322: Thu Oct 1 14:56:56 2026 read: IOPS=8, BW=348MiB/s (365MB/s)(40.0MiB/115msec) slat (nsec): min=10418k, max=10418k, avg=10417589.00, stdev= 0.00 clat (nsec): min=99382k, max=99382k, avg=99381943.00, stdev= 0.00 lat (nsec): min=109804k, max=109804k, avg=109804015.00, stdev= 0.00 clat percentiles (usec): | 1.00th=[99091], 5.00th=[99091], 10.00th=[99091], 20.00th=[99091], | 30.00th=[99091], 40.00th=[99091], 50.00th=[99091], 60.00th=[99091], | 70.00th=[99091], 80.00th=[99091], 90.00th=[99091], 95.00th=[99091], | 99.00th=[99091], 99.50th=[99091], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] lat (msec) : 100=100.00% cpu : usr=0.00%, sys=7.89%, ctx=39, 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=348MiB/s (365MB/s), 348MiB/s-348MiB/s (365MB/s-365MB/s), io=40.0MiB (41.9MB), run=115-115msec 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