== sanity test 398c: run fio to test AIO ================= 09:49:38 (1787838578) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.430651 s, 97.4 MB/s osc.lustre-OST0000-osc-ffff99cd43001000.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=180228: Thu Aug 27 09:50:22 2026 write: IOPS=77, BW=311KiB/s (319kB/s)(10.0MiB/32875msec); 0 zone resets slat (usec): min=28, max=20956, avg=290.44, stdev=1116.59 clat (msec): min=35, max=378, avg=203.89, stdev=46.54 lat (msec): min=35, max=378, avg=204.19, stdev=46.57 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 133], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 228], 80.00th=[ 245], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 342], 99.50th=[ 376], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 142, max= 518, per=24.93%, avg=310.34, stdev=74.34, samples=65 iops : min= 35, max= 129, avg=77.12, stdev=18.63, samples=65 lat (msec) : 50=0.16%, 100=0.35%, 250=84.18%, 500=15.31% cpu : usr=0.16%, sys=0.88%, ctx=2465, 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=180229: Thu Aug 27 09:50:22 2026 write: IOPS=77, BW=312KiB/s (319kB/s)(10.0MiB/32864msec); 0 zone resets slat (usec): min=24, max=17468, avg=214.47, stdev=866.50 clat (msec): min=50, max=364, avg=203.73, stdev=45.00 lat (msec): min=50, max=366, avg=203.94, stdev=45.02 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 199], 60.00th=[ 213], | 70.00th=[ 224], 80.00th=[ 243], 90.00th=[ 262], 95.00th=[ 279], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 158, max= 501, per=24.95%, avg=310.63, stdev=63.70, samples=65 iops : min= 39, max= 125, avg=77.20, stdev=15.92, samples=65 lat (msec) : 100=0.23%, 250=83.67%, 500=16.09% cpu : usr=0.18%, sys=0.72%, ctx=1778, 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=180230: Thu Aug 27 09:50:22 2026 write: IOPS=78, BW=312KiB/s (320kB/s)(10.0MiB/32805msec); 0 zone resets slat (usec): min=29, max=14767, avg=259.67, stdev=958.25 clat (msec): min=39, max=394, avg=203.80, stdev=46.67 lat (msec): min=39, max=394, avg=204.07, stdev=46.71 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 136], 10.00th=[ 144], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 209], | 70.00th=[ 226], 80.00th=[ 245], 90.00th=[ 264], 95.00th=[ 292], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 158, max= 510, per=24.94%, avg=310.55, stdev=62.80, samples=65 iops : min= 39, max= 127, avg=77.18, stdev=15.76, samples=65 lat (msec) : 50=0.08%, 100=0.47%, 250=83.12%, 500=16.33% cpu : usr=0.18%, sys=0.92%, ctx=2430, 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=180231: Thu Aug 27 09:50:22 2026 write: IOPS=78, BW=313KiB/s (321kB/s)(10.0MiB/32699msec); 0 zone resets slat (usec): min=23, max=29382, avg=283.53, stdev=1059.06 clat (msec): min=20, max=437, avg=203.79, stdev=47.06 lat (msec): min=22, max=438, avg=204.07, stdev=47.06 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 136], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 199], 60.00th=[ 209], | 70.00th=[ 226], 80.00th=[ 245], 90.00th=[ 266], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 376], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 150, max= 479, per=25.18%, avg=313.50, stdev=61.89, samples=64 iops : min= 37, max= 119, avg=77.91, stdev=15.48, samples=64 lat (msec) : 50=0.16%, 100=0.27%, 250=83.95%, 500=15.62% cpu : usr=0.21%, sys=1.06%, ctx=2832, 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 Run status group 0 (all jobs): WRITE: bw=1246KiB/s (1276kB/s), 311KiB/s-313KiB/s (319kB/s-321kB/s), io=40.0MiB (41.9MB), run=32699-32875msec 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=180247: Thu Aug 27 09:51:07 2026 read: IOPS=37, BW=149KiB/s (152kB/s)(5048KiB/33957msec) slat (usec): min=2846, max=55384, avg=14612.84, stdev=7563.62 clat (msec): min=25, max=348, avg=200.79, stdev=39.86 lat (msec): min=35, max=378, avg=215.42, stdev=41.20 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 251], 95.00th=[ 268], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 321], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 30, max= 215, per=25.15%, avg=148.13, stdev=30.62, samples=67 iops : min= 7, max= 53, avg=36.54, stdev= 7.67, samples=67 write: IOPS=38, BW=153KiB/s (157kB/s)(5192KiB/33957msec); 0 zone resets slat (usec): min=31, max=21432, avg=291.22, stdev=1078.33 clat (msec): min=108, max=381, avg=205.01, stdev=37.84 lat (msec): min=113, max=381, avg=205.30, stdev=37.73 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 203], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 334], 99.90th=[ 351], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 7, max= 254, per=24.91%, avg=152.72, stdev=38.18, samples=67 iops : min= 1, max= 63, avg=37.70, stdev= 9.56, samples=67 lat (msec) : 50=0.04%, 100=0.04%, 250=88.87%, 500=11.05% cpu : usr=0.23%, sys=1.87%, ctx=4493, 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=180248: Thu Aug 27 09:51:07 2026 read: IOPS=36, BW=146KiB/s (150kB/s)(4976KiB/34028msec) slat (usec): min=3306, max=55441, avg=14444.19, stdev=7268.34 clat (msec): min=27, max=345, avg=201.94, stdev=40.54 lat (msec): min=39, max=359, avg=216.40, stdev=41.52 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 142], 10.00th=[ 153], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 224], 80.00th=[ 236], 90.00th=[ 253], 95.00th=[ 271], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 338], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 29, max= 223, per=24.62%, avg=144.99, stdev=31.76, samples=67 iops : min= 7, max= 55, avg=35.78, stdev= 7.90, samples=67 write: IOPS=38, BW=155KiB/s (158kB/s)(5264KiB/34028msec); 0 zone resets slat (usec): min=28, max=14874, avg=287.74, stdev=914.58 clat (msec): min=100, max=369, avg=206.00, stdev=36.49 lat (msec): min=101, max=369, avg=206.29, stdev=36.44 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 207], 60.00th=[ 215], | 70.00th=[ 224], 80.00th=[ 239], 90.00th=[ 251], 95.00th=[ 266], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 359], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 80, max= 262, per=25.17%, avg=154.27, stdev=37.67, samples=67 iops : min= 20, max= 65, avg=38.10, stdev= 9.40, samples=67 lat (msec) : 50=0.04%, 100=0.08%, 250=89.22%, 500=10.66% cpu : usr=0.30%, sys=1.75%, ctx=4445, 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=180249: Thu Aug 27 09:51:07 2026 read: IOPS=37, BW=148KiB/s (152kB/s)(4984KiB/33664msec) slat (usec): min=51, max=71586, avg=14634.34, stdev=7946.66 clat (msec): min=24, max=401, avg=200.81, stdev=42.60 lat (msec): min=25, max=409, avg=215.45, stdev=43.73 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 211], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 253], 95.00th=[ 268], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 384], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 88, max= 215, per=25.12%, avg=147.94, stdev=28.48, samples=66 iops : min= 22, max= 53, avg=36.50, stdev= 7.03, samples=66 write: IOPS=39, BW=156KiB/s (160kB/s)(5256KiB/33664msec); 0 zone resets slat (usec): min=23, max=12348, avg=266.80, stdev=808.23 clat (msec): min=109, max=354, avg=204.87, stdev=37.05 lat (msec): min=109, max=354, avg=205.14, stdev=37.00 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 148], 10.00th=[ 159], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 203], 60.00th=[ 213], | 70.00th=[ 222], 80.00th=[ 234], 90.00th=[ 253], 95.00th=[ 268], | 99.00th=[ 300], 99.50th=[ 313], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 80, max= 248, per=25.37%, avg=155.53, stdev=37.54, samples=66 iops : min= 20, max= 62, avg=38.39, stdev= 9.40, samples=66 lat (msec) : 50=0.08%, 100=0.16%, 250=88.44%, 500=11.33% cpu : usr=0.26%, sys=1.75%, ctx=4678, 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=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=180250: Thu Aug 27 09:51:07 2026 read: IOPS=37, BW=149KiB/s (152kB/s)(5060KiB/34022msec) slat (usec): min=2667, max=55291, avg=14467.65, stdev=7401.80 clat (msec): min=20, max=342, avg=200.65, stdev=40.88 lat (msec): min=36, max=355, avg=215.12, stdev=42.00 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 140], 10.00th=[ 150], 20.00th=[ 167], | 30.00th=[ 178], 40.00th=[ 188], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 222], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 22, max= 223, per=25.14%, avg=148.09, stdev=33.65, samples=67 iops : min= 5, max= 55, avg=36.54, stdev= 8.37, samples=67 write: IOPS=38, BW=152KiB/s (156kB/s)(5180KiB/34022msec); 0 zone resets slat (usec): min=25, max=20319, avg=253.80, stdev=1009.69 clat (msec): min=113, max=374, avg=206.48, stdev=39.14 lat (msec): min=114, max=376, avg=206.74, stdev=39.14 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 176], | 30.00th=[ 184], 40.00th=[ 194], 50.00th=[ 205], 60.00th=[ 213], | 70.00th=[ 224], 80.00th=[ 236], 90.00th=[ 259], 95.00th=[ 275], | 99.00th=[ 309], 99.50th=[ 334], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 29, max= 224, per=24.66%, avg=151.16, stdev=29.13, samples=67 iops : min= 7, max= 56, avg=37.33, stdev= 7.31, samples=67 lat (msec) : 50=0.16%, 100=0.16%, 250=87.34%, 500=12.34% cpu : usr=0.29%, sys=1.68%, ctx=4619, 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=590KiB/s (604kB/s), 146KiB/s-149KiB/s (150kB/s-152kB/s), io=19.6MiB (20.5MB), run=33664-34028msec WRITE: bw=614KiB/s (629kB/s), 152KiB/s-156KiB/s (156kB/s-160kB/s), io=20.4MiB (21.4MB), run=33664-34028msec 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=180259: Thu Aug 27 09:51:17 2026 read: IOPS=2, BW=85.1MiB/s (89.2MB/s)(40.0MiB/470msec) slat (nsec): min=28724k, max=28724k, avg=28724032.00, stdev= 0.00 clat (nsec): min=423493k, max=423493k, avg=423493394.00, stdev= 0.00 lat (nsec): min=452222k, max=452222k, avg=452221721.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.77%, ctx=15, 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=85.1MiB/s (89.2MB/s), 85.1MiB/s-85.1MiB/s (89.2MB/s-89.2MB/s), io=40.0MiB (41.9MB), run=470-470msec 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