== sanity test 398c: run fio to test AIO ================= 23:18:29 (1787714309) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.624861 s, 67.1 MB/s osc.lustre-OST0000-osc-ffffa083f93d7000.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=179781: Tue Aug 25 23:19:09 2026 write: IOPS=88, BW=355KiB/s (363kB/s)(10.0MiB/28877msec); 0 zone resets slat (usec): min=27, max=16134, avg=213.04, stdev=742.51 clat (msec): min=33, max=353, avg=179.46, stdev=45.30 lat (msec): min=33, max=353, avg=179.67, stdev=45.30 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 112], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 241], 95.00th=[ 262], | 99.00th=[ 296], 99.50th=[ 300], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 175, max= 536, per=24.96%, avg=353.98, stdev=78.17, samples=57 iops : min= 43, max= 134, avg=88.18, stdev=19.57, samples=57 lat (msec) : 50=0.08%, 100=1.99%, 250=90.59%, 500=7.34% cpu : usr=0.19%, sys=0.88%, ctx=2849, 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=179782: Tue Aug 25 23:19:09 2026 write: IOPS=88, BW=355KiB/s (364kB/s)(10.0MiB/28837msec); 0 zone resets slat (usec): min=32, max=13744, avg=222.85, stdev=734.68 clat (msec): min=23, max=434, avg=179.84, stdev=46.96 lat (msec): min=24, max=434, avg=180.07, stdev=46.97 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 113], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 264], | 99.00th=[ 305], 99.50th=[ 342], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 207, max= 528, per=25.04%, avg=355.02, stdev=77.45, samples=57 iops : min= 51, max= 132, avg=88.44, stdev=19.38, samples=57 lat (msec) : 50=0.16%, 100=1.80%, 250=91.41%, 500=6.64% cpu : usr=0.20%, sys=0.90%, ctx=3020, 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=179783: Tue Aug 25 23:19:09 2026 write: IOPS=88, BW=355KiB/s (364kB/s)(10.0MiB/28842msec); 0 zone resets slat (usec): min=29, max=17000, avg=176.51, stdev=625.58 clat (msec): min=17, max=482, avg=179.81, stdev=46.93 lat (msec): min=17, max=482, avg=179.99, stdev=46.96 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 117], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 255], | 99.00th=[ 313], 99.50th=[ 342], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 485] bw ( KiB/s): min= 199, max= 512, per=25.04%, avg=355.04, stdev=87.31, samples=57 iops : min= 49, max= 128, avg=88.44, stdev=21.88, samples=57 lat (msec) : 20=0.04%, 50=0.20%, 100=1.29%, 250=92.81%, 500=5.66% cpu : usr=0.14%, sys=0.85%, ctx=2285, 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=179784: Tue Aug 25 23:19:09 2026 write: IOPS=88, BW=355KiB/s (363kB/s)(10.0MiB/28860msec); 0 zone resets slat (usec): min=29, max=29516, avg=213.08, stdev=939.99 clat (msec): min=24, max=403, avg=179.59, stdev=45.37 lat (msec): min=24, max=403, avg=179.80, stdev=45.38 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 317], 99.50th=[ 355], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 191, max= 624, per=25.05%, avg=355.18, stdev=86.82, samples=57 iops : min= 47, max= 156, avg=88.46, stdev=21.72, samples=57 lat (msec) : 50=0.12%, 100=1.84%, 250=92.11%, 500=5.94% cpu : usr=0.14%, sys=0.81%, ctx=2284, 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=1418KiB/s (1452kB/s), 355KiB/s-355KiB/s (363kB/s-364kB/s), io=40.0MiB (41.9MB), run=28837-28877msec 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=179800: Tue Aug 25 23:19:54 2026 read: IOPS=37, BW=151KiB/s (155kB/s)(5048KiB/33383msec) slat (usec): min=2555, max=56739, avg=14339.24, stdev=7852.85 clat (msec): min=30, max=360, avg=195.83, stdev=41.35 lat (msec): min=42, max=375, avg=210.18, stdev=42.87 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 203], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 72, max= 236, per=25.07%, avg=150.42, stdev=34.51, samples=66 iops : min= 18, max= 59, avg=37.18, stdev= 8.69, samples=66 write: IOPS=38, BW=156KiB/s (159kB/s)(5192KiB/33383msec); 0 zone resets slat (usec): min=33, max=23210, avg=280.03, stdev=1245.23 clat (msec): min=103, max=370, avg=204.03, stdev=37.67 lat (msec): min=103, max=370, avg=204.31, stdev=37.68 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 171], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 234], 90.00th=[ 253], 95.00th=[ 268], | 99.00th=[ 321], 99.50th=[ 326], 99.90th=[ 355], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 87, max= 223, per=24.85%, avg=155.29, stdev=31.18, samples=66 iops : min= 21, max= 55, avg=38.39, stdev= 7.83, samples=66 lat (msec) : 50=0.04%, 100=0.04%, 250=89.34%, 500=10.59% cpu : usr=0.28%, sys=1.71%, ctx=4488, 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=179801: Tue Aug 25 23:19:54 2026 read: IOPS=37, BW=149KiB/s (153kB/s)(4976KiB/33316msec) slat (usec): min=36, max=57758, avg=14238.07, stdev=7570.23 clat (msec): min=77, max=328, avg=196.96, stdev=39.25 lat (msec): min=87, max=339, avg=211.21, stdev=40.77 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 230], 90.00th=[ 251], 95.00th=[ 266], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 321], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 63, max= 222, per=24.75%, avg=148.52, stdev=31.01, samples=66 iops : min= 15, max= 55, avg=36.70, stdev= 7.83, samples=66 write: IOPS=39, BW=158KiB/s (162kB/s)(5264KiB/33316msec); 0 zone resets slat (usec): min=32, max=9875, avg=192.66, stdev=612.53 clat (msec): min=53, max=335, avg=204.54, stdev=39.79 lat (msec): min=53, max=335, avg=204.74, stdev=39.79 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 148], 10.00th=[ 161], 20.00th=[ 171], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 262], 95.00th=[ 275], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 334], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 103, max= 231, per=25.24%, avg=157.74, stdev=30.73, samples=66 iops : min= 25, max= 57, avg=39.00, stdev= 7.64, samples=66 lat (msec) : 100=0.35%, 250=87.54%, 500=12.11% cpu : usr=0.23%, sys=1.70%, ctx=4180, 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=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=179802: Tue Aug 25 23:19:54 2026 read: IOPS=37, BW=149KiB/s (153kB/s)(4984KiB/33399msec) slat (usec): min=3189, max=60698, avg=14368.79, stdev=7958.90 clat (msec): min=6, max=327, avg=197.27, stdev=41.59 lat (msec): min=14, max=363, avg=211.65, stdev=43.10 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 321], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 79, max= 244, per=24.69%, avg=148.15, stdev=36.05, samples=66 iops : min= 19, max= 61, avg=36.61, stdev= 9.05, samples=66 write: IOPS=39, BW=157KiB/s (161kB/s)(5256KiB/33399msec); 0 zone resets slat (usec): min=31, max=9419, avg=213.32, stdev=621.11 clat (msec): min=44, max=373, avg=203.19, stdev=38.77 lat (msec): min=44, max=373, avg=203.40, stdev=38.75 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 169], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 368], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 71, max= 261, per=24.93%, avg=155.79, stdev=35.24, samples=66 iops : min= 17, max= 65, avg=38.52, stdev= 8.88, samples=66 lat (msec) : 10=0.04%, 20=0.04%, 50=0.12%, 100=0.12%, 250=89.02% lat (msec) : 500=10.66% cpu : usr=0.25%, sys=1.65%, ctx=4057, 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=179803: Tue Aug 25 23:19:54 2026 read: IOPS=37, BW=152KiB/s (155kB/s)(5060KiB/33381msec) slat (usec): min=3004, max=61323, avg=14503.57, stdev=7889.48 clat (msec): min=37, max=368, avg=196.23, stdev=40.37 lat (msec): min=44, max=380, avg=210.74, stdev=41.86 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 140], 10.00th=[ 150], 20.00th=[ 163], | 30.00th=[ 174], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 355], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 87, max= 216, per=25.22%, avg=151.33, stdev=29.41, samples=66 iops : min= 21, max= 54, avg=37.39, stdev= 7.38, samples=66 write: IOPS=38, BW=155KiB/s (159kB/s)(5180KiB/33381msec); 0 zone resets slat (usec): min=32, max=16326, avg=274.46, stdev=1053.50 clat (msec): min=110, max=341, avg=203.71, stdev=37.99 lat (msec): min=110, max=341, avg=203.99, stdev=38.01 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 146], 10.00th=[ 155], 20.00th=[ 171], | 30.00th=[ 182], 40.00th=[ 192], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 255], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 334], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 79, max= 246, per=24.69%, avg=154.30, stdev=34.53, samples=66 iops : min= 19, max= 61, avg=38.15, stdev= 8.67, samples=66 lat (msec) : 50=0.04%, 100=0.04%, 250=88.67%, 500=11.25% cpu : usr=0.29%, sys=1.77%, ctx=4401, 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=601KiB/s (615kB/s), 149KiB/s-152KiB/s (153kB/s-155kB/s), io=19.6MiB (20.5MB), run=33316-33399msec WRITE: bw=626KiB/s (641kB/s), 155KiB/s-158KiB/s (159kB/s-162kB/s), io=20.4MiB (21.4MB), run=33316-33399msec 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=179812: Tue Aug 25 23:20:04 2026 read: IOPS=1, BW=75.0MiB/s (78.7MB/s)(40.0MiB/533msec) slat (nsec): min=57016k, max=57016k, avg=57016201.00, stdev= 0.00 clat (nsec): min=461214k, max=461214k, avg=461214302.00, stdev= 0.00 lat (nsec): min=518237k, max=518237k, avg=518236793.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.88%, ctx=14, majf=0, minf=9 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=75.0MiB/s (78.7MB/s), 75.0MiB/s-75.0MiB/s (78.7MB/s-78.7MB/s), io=40.0MiB (41.9MB), run=533-533msec 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