== sanity test 398c: run fio to test AIO ================= 02:49:24 (1787122164) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.682767 s, 61.4 MB/s osc.lustre-OST0000-osc-ffff8c92de5e0800.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=179933: Wed Aug 19 02:49:59 2026 write: IOPS=101, BW=405KiB/s (415kB/s)(10.0MiB/25267msec); 0 zone resets slat (usec): min=38, max=16425, avg=312.40, stdev=916.17 clat (msec): min=20, max=361, avg=157.41, stdev=34.95 lat (msec): min=20, max=361, avg=157.73, stdev=34.93 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 112], 10.00th=[ 120], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 182], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 271], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 221, max= 603, per=25.00%, avg=403.20, stdev=68.04, samples=50 iops : min= 55, max= 150, avg=100.44, stdev=17.04, samples=50 lat (msec) : 50=0.16%, 100=1.80%, 250=96.80%, 500=1.25% cpu : usr=0.21%, sys=1.35%, ctx=2589, 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=179934: Wed Aug 19 02:49:59 2026 write: IOPS=100, BW=403KiB/s (413kB/s)(10.0MiB/25383msec); 0 zone resets slat (usec): min=40, max=19764, avg=314.90, stdev=980.65 clat (msec): min=10, max=359, avg=157.11, stdev=33.51 lat (msec): min=10, max=359, avg=157.42, stdev=33.49 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 111], 10.00th=[ 122], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 161], | 70.00th=[ 169], 80.00th=[ 182], 90.00th=[ 201], 95.00th=[ 218], | 99.00th=[ 268], 99.50th=[ 271], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 359] bw ( KiB/s): min= 253, max= 550, per=24.96%, avg=402.62, stdev=72.66, samples=50 iops : min= 63, max= 137, avg=100.28, stdev=18.14, samples=50 lat (msec) : 20=0.12%, 100=1.17%, 250=97.38%, 500=1.33% cpu : usr=0.20%, sys=1.55%, ctx=2902, 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=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=179935: Wed Aug 19 02:49:59 2026 write: IOPS=101, BW=404KiB/s (414kB/s)(10.0MiB/25329msec); 0 zone resets slat (usec): min=37, max=18835, avg=283.32, stdev=906.16 clat (msec): min=4, max=345, avg=156.99, stdev=34.38 lat (msec): min=17, max=346, avg=157.28, stdev=34.37 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 110], 10.00th=[ 118], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 169], 80.00th=[ 182], 90.00th=[ 203], 95.00th=[ 218], | 99.00th=[ 259], 99.50th=[ 275], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 253, max= 512, per=24.99%, avg=403.08, stdev=67.67, samples=50 iops : min= 63, max= 128, avg=100.40, stdev=16.94, samples=50 lat (msec) : 10=0.04%, 50=0.20%, 100=2.42%, 250=96.09%, 500=1.25% cpu : usr=0.15%, sys=1.23%, ctx=2284, 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=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=179936: Wed Aug 19 02:49:59 2026 write: IOPS=100, BW=404KiB/s (413kB/s)(10.0MiB/25363msec); 0 zone resets slat (usec): min=38, max=15219, avg=278.19, stdev=794.86 clat (msec): min=24, max=349, avg=157.15, stdev=33.55 lat (msec): min=24, max=349, avg=157.44, stdev=33.57 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 109], 10.00th=[ 120], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 215], | 99.00th=[ 268], 99.50th=[ 296], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 351] bw ( KiB/s): min= 182, max= 614, per=24.99%, avg=403.12, stdev=72.35, samples=50 iops : min= 45, max= 153, avg=100.38, stdev=18.10, samples=50 lat (msec) : 50=0.08%, 100=2.15%, 250=96.56%, 500=1.21% cpu : usr=0.23%, sys=1.23%, ctx=2516, 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=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=1614KiB/s (1652kB/s), 403KiB/s-405KiB/s (413kB/s-415kB/s), io=40.0MiB (41.9MB), run=25267-25383msec 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=179950: Wed Aug 19 02:50:42 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(5048KiB/31803msec) slat (msec): min=2, max=133, avg=13.88, stdev= 8.50 clat (msec): min=37, max=430, avg=187.97, stdev=54.88 lat (msec): min=49, max=463, avg=201.85, stdev=56.95 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 111], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 253], 95.00th=[ 284], | 99.00th=[ 363], 99.50th=[ 388], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 66, max= 239, per=25.09%, avg=158.10, stdev=43.22, samples=63 iops : min= 16, max= 59, avg=39.03, stdev=10.86, samples=63 write: IOPS=40, BW=163KiB/s (167kB/s)(5192KiB/31803msec); 0 zone resets slat (usec): min=39, max=13193, avg=323.00, stdev=884.08 clat (msec): min=64, max=410, avg=191.67, stdev=57.20 lat (msec): min=64, max=410, avg=191.99, stdev=57.23 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 259], 95.00th=[ 309], | 99.00th=[ 384], 99.50th=[ 397], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 44, max= 279, per=24.85%, avg=163.03, stdev=45.19, samples=63 iops : min= 11, max= 69, avg=40.29, stdev=11.34, samples=63 lat (msec) : 50=0.04%, 100=1.52%, 250=86.72%, 500=11.72% cpu : usr=0.31%, sys=2.02%, ctx=4557, 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=179951: Wed Aug 19 02:50:42 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4976KiB/31690msec) slat (usec): min=2587, max=86247, avg=13924.21, stdev=8210.86 clat (msec): min=19, max=414, avg=186.44, stdev=54.46 lat (msec): min=23, max=430, avg=200.37, stdev=56.72 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 209], 80.00th=[ 224], 90.00th=[ 253], 95.00th=[ 288], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 397], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 73, max= 248, per=24.76%, avg=155.97, stdev=45.93, samples=62 iops : min= 18, max= 62, avg=38.50, stdev=11.52, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5264KiB/31690msec); 0 zone resets slat (usec): min=54, max=9768, avg=271.87, stdev=570.22 clat (msec): min=73, max=410, avg=193.30, stdev=54.65 lat (msec): min=73, max=410, avg=193.57, stdev=54.66 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 121], 10.00th=[ 130], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 259], 95.00th=[ 313], | 99.00th=[ 363], 99.50th=[ 380], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 95, max= 261, per=25.24%, avg=165.55, stdev=42.08, samples=62 iops : min= 23, max= 65, avg=40.89, stdev=10.59, samples=62 lat (msec) : 20=0.04%, 50=0.04%, 100=1.45%, 250=87.50%, 500=10.98% cpu : usr=0.23%, sys=1.92%, ctx=4415, 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=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=179952: Wed Aug 19 02:50:42 2026 read: IOPS=39, BW=157KiB/s (160kB/s)(4984KiB/31828msec) slat (usec): min=2345, max=66536, avg=13918.42, stdev=8126.18 clat (msec): min=13, max=415, avg=187.92, stdev=54.91 lat (msec): min=20, max=437, avg=201.84, stdev=57.26 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 114], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 257], 95.00th=[ 288], | 99.00th=[ 363], 99.50th=[ 388], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 55, max= 248, per=24.81%, avg=156.29, stdev=42.85, samples=63 iops : min= 13, max= 62, avg=38.59, stdev=10.76, samples=63 write: IOPS=41, BW=165KiB/s (169kB/s)(5256KiB/31828msec); 0 zone resets slat (usec): min=43, max=13747, avg=305.10, stdev=867.99 clat (msec): min=18, max=429, avg=192.91, stdev=55.64 lat (msec): min=18, max=429, avg=193.23, stdev=55.63 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 118], 10.00th=[ 131], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 232], 90.00th=[ 264], 95.00th=[ 296], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 414], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 71, max= 280, per=25.02%, avg=164.14, stdev=47.13, samples=63 iops : min= 17, max= 70, avg=40.56, stdev=11.81, samples=63 lat (msec) : 20=0.08%, 50=0.12%, 100=1.41%, 250=86.05%, 500=12.34% cpu : usr=0.27%, sys=1.90%, ctx=4438, 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=179953: Wed Aug 19 02:50:42 2026 read: IOPS=39, BW=160KiB/s (163kB/s)(5060KiB/31702msec) slat (usec): min=62, max=64247, avg=13710.74, stdev=7765.73 clat (msec): min=27, max=451, avg=190.76, stdev=55.29 lat (msec): min=38, max=476, avg=204.49, stdev=57.27 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 376], 99.50th=[ 418], 99.90th=[ 439], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 39, max= 255, per=25.22%, avg=158.85, stdev=40.99, samples=62 iops : min= 9, max= 63, avg=39.21, stdev=10.25, samples=62 write: IOPS=40, BW=163KiB/s (167kB/s)(5180KiB/31702msec); 0 zone resets slat (usec): min=40, max=10593, avg=324.78, stdev=766.92 clat (msec): min=31, max=447, avg=191.15, stdev=56.44 lat (msec): min=36, max=447, avg=191.48, stdev=56.43 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 115], 10.00th=[ 127], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 257], 95.00th=[ 305], | 99.00th=[ 376], 99.50th=[ 388], 99.90th=[ 435], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 63, max= 239, per=24.70%, avg=162.02, stdev=41.72, samples=62 iops : min= 15, max= 59, avg=40.02, stdev=10.53, samples=62 lat (msec) : 50=0.08%, 100=1.68%, 250=86.84%, 500=11.41% cpu : usr=0.26%, sys=2.01%, ctx=4544, 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=631KiB/s (646kB/s), 157KiB/s-160KiB/s (160kB/s-163kB/s), io=19.6MiB (20.5MB), run=31690-31828msec WRITE: bw=656KiB/s (672kB/s), 163KiB/s-166KiB/s (167kB/s-170kB/s), io=20.4MiB (21.4MB), run=31690-31828msec 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=179963: Wed Aug 19 02:50:54 2026 read: IOPS=2, BW=88.9MiB/s (93.2MB/s)(40.0MiB/450msec) slat (nsec): min=43586k, max=43586k, avg=43585622.00, stdev= 0.00 clat (nsec): min=376922k, max=376922k, avg=376921587.00, stdev= 0.00 lat (nsec): min=420542k, max=420542k, avg=420541507.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] lat (msec) : 500=100.00% cpu : usr=0.22%, sys=2.90%, ctx=5, 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=88.9MiB/s (93.2MB/s), 88.9MiB/s-88.9MiB/s (93.2MB/s-93.2MB/s), io=40.0MiB (41.9MB), run=450-450msec 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