== sanity test 398c: run fio to test AIO ================= 03:18:01 (1779693481) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.417414 s, 100 MB/s osc.lustre-OST0000-osc-ffff888647eaa000.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=181033: Mon May 25 03:18:35 2026 write: IOPS=105, BW=423KiB/s (433kB/s)(10.0MiB/24204msec); 0 zone resets slat (usec): min=38, max=9675, avg=248.28, stdev=585.17 clat (msec): min=23, max=353, avg=150.86, stdev=34.32 lat (msec): min=24, max=353, avg=151.11, stdev=34.32 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 100], 10.00th=[ 110], 20.00th=[ 123], | 30.00th=[ 131], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 197], 95.00th=[ 220], | 99.00th=[ 234], 99.50th=[ 241], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 355] bw ( KiB/s): min= 246, max= 573, per=24.93%, avg=420.54, stdev=78.65, samples=48 iops : min= 61, max= 143, avg=104.75, stdev=19.73, samples=48 lat (msec) : 50=0.04%, 100=5.43%, 250=94.38%, 500=0.16% cpu : usr=0.17%, sys=1.31%, ctx=2807, 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=181034: Mon May 25 03:18:35 2026 write: IOPS=105, BW=422KiB/s (432kB/s)(10.0MiB/24268msec); 0 zone resets slat (usec): min=36, max=18323, avg=253.36, stdev=692.48 clat (msec): min=13, max=398, avg=151.03, stdev=37.09 lat (msec): min=14, max=399, avg=151.28, stdev=37.09 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 102], 10.00th=[ 110], 20.00th=[ 122], | 30.00th=[ 133], 40.00th=[ 140], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 178], 90.00th=[ 199], 95.00th=[ 220], | 99.00th=[ 251], 99.50th=[ 275], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 222, max= 632, per=24.93%, avg=420.56, stdev=76.63, samples=48 iops : min= 55, max= 158, avg=104.77, stdev=19.23, samples=48 lat (msec) : 20=0.12%, 50=0.08%, 100=4.57%, 250=94.22%, 500=1.02% cpu : usr=0.18%, sys=1.24%, ctx=2980, 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=181035: Mon May 25 03:18:35 2026 write: IOPS=105, BW=423KiB/s (433kB/s)(10.0MiB/24231msec); 0 zone resets slat (usec): min=37, max=10816, avg=243.47, stdev=631.74 clat (msec): min=13, max=276, avg=150.49, stdev=33.86 lat (msec): min=13, max=276, avg=150.73, stdev=33.86 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 124], | 30.00th=[ 131], 40.00th=[ 138], 50.00th=[ 148], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 178], 90.00th=[ 199], 95.00th=[ 215], | 99.00th=[ 239], 99.50th=[ 255], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 254, max= 605, per=24.95%, avg=420.87, stdev=72.12, samples=48 iops : min= 63, max= 151, avg=104.85, stdev=18.10, samples=48 lat (msec) : 20=0.08%, 50=0.20%, 100=3.71%, 250=95.39%, 500=0.62% cpu : usr=0.24%, sys=1.22%, ctx=2333, 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=181036: Mon May 25 03:18:35 2026 write: IOPS=105, BW=422KiB/s (432kB/s)(10.0MiB/24274msec); 0 zone resets slat (usec): min=35, max=15514, avg=248.70, stdev=717.27 clat (msec): min=11, max=302, avg=150.83, stdev=35.41 lat (msec): min=21, max=302, avg=151.08, stdev=35.39 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 102], 10.00th=[ 110], 20.00th=[ 123], | 30.00th=[ 132], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 197], 95.00th=[ 220], | 99.00th=[ 243], 99.50th=[ 271], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 263, max= 552, per=24.95%, avg=420.96, stdev=74.90, samples=48 iops : min= 65, max= 138, avg=104.88, stdev=18.81, samples=48 lat (msec) : 20=0.04%, 50=0.08%, 100=4.10%, 250=95.00%, 500=0.78% cpu : usr=0.18%, sys=1.33%, ctx=2301, 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 Run status group 0 (all jobs): WRITE: bw=1687KiB/s (1728kB/s), 422KiB/s-423KiB/s (432kB/s-433kB/s), io=40.0MiB (41.9MB), run=24204-24274msec 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=181051: Mon May 25 03:19:15 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(5048KiB/31532msec) slat (usec): min=2754, max=58877, avg=14083.46, stdev=7652.66 clat (msec): min=21, max=383, avg=183.87, stdev=45.64 lat (msec): min=29, max=398, avg=197.96, stdev=47.51 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 121], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 266], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 368], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 42, max= 304, per=24.96%, avg=158.73, stdev=42.62, samples=62 iops : min= 10, max= 76, avg=39.19, stdev=10.68, samples=62 write: IOPS=41, BW=165KiB/s (169kB/s)(5192KiB/31532msec); 0 zone resets slat (usec): min=38, max=21183, avg=304.27, stdev=997.81 clat (msec): min=21, max=375, avg=192.67, stdev=44.31 lat (msec): min=21, max=376, avg=192.97, stdev=44.38 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 268], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 363], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 42, max= 247, per=24.75%, avg=163.82, stdev=37.75, samples=62 iops : min= 10, max= 61, avg=40.48, stdev= 9.48, samples=62 lat (msec) : 50=0.31%, 100=1.48%, 250=89.61%, 500=8.59% cpu : usr=0.26%, sys=1.83%, ctx=4408, 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=181052: Mon May 25 03:19:15 2026 read: IOPS=39, BW=158KiB/s (162kB/s)(4976KiB/31438msec) slat (usec): min=2442, max=61797, avg=14018.64, stdev=8094.22 clat (msec): min=13, max=412, avg=184.78, stdev=46.98 lat (msec): min=22, max=426, avg=198.81, stdev=49.24 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 124], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 215], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 401], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 49, max= 240, per=24.82%, avg=157.84, stdev=37.72, samples=62 iops : min= 12, max= 60, avg=38.98, stdev= 9.45, samples=62 write: IOPS=41, BW=167KiB/s (171kB/s)(5264KiB/31438msec); 0 zone resets slat (usec): min=41, max=19554, avg=323.52, stdev=976.72 clat (msec): min=73, max=372, avg=192.16, stdev=43.63 lat (msec): min=73, max=372, avg=192.48, stdev=43.66 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 359], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 80, max= 288, per=25.29%, avg=167.42, stdev=41.84, samples=62 iops : min= 20, max= 72, avg=41.39, stdev=10.52, samples=62 lat (msec) : 20=0.04%, 100=0.70%, 250=89.77%, 500=9.49% cpu : usr=0.28%, sys=1.72%, ctx=4428, 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=181053: Mon May 25 03:19:15 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(4984KiB/31391msec) slat (usec): min=87, max=79624, avg=14194.23, stdev=8390.16 clat (msec): min=16, max=406, avg=183.70, stdev=44.85 lat (msec): min=17, max=410, avg=197.90, stdev=47.31 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 121], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 397], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 80, max= 264, per=24.99%, avg=158.95, stdev=39.74, samples=62 iops : min= 20, max= 66, avg=39.24, stdev=10.01, samples=62 write: IOPS=41, BW=167KiB/s (171kB/s)(5256KiB/31391msec); 0 zone resets slat (usec): min=41, max=10105, avg=252.23, stdev=584.40 clat (msec): min=17, max=400, avg=193.82, stdev=48.19 lat (msec): min=18, max=400, avg=194.07, stdev=48.17 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 284], | 99.00th=[ 347], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 87, max= 248, per=25.17%, avg=166.63, stdev=39.87, samples=62 iops : min= 21, max= 62, avg=41.18, stdev= 9.98, samples=62 lat (msec) : 20=0.12%, 50=0.08%, 100=1.05%, 250=89.69%, 500=9.06% cpu : usr=0.22%, sys=1.81%, ctx=4399, 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=181054: Mon May 25 03:19:15 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(5060KiB/31497msec) slat (usec): min=3017, max=74386, avg=14153.73, stdev=7705.73 clat (msec): min=18, max=382, avg=185.36, stdev=46.14 lat (msec): min=42, max=394, avg=199.53, stdev=48.28 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 122], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 268], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 376], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 49, max= 296, per=25.23%, avg=160.47, stdev=41.36, samples=62 iops : min= 12, max= 74, avg=39.65, stdev=10.38, samples=62 write: IOPS=41, BW=164KiB/s (168kB/s)(5180KiB/31497msec); 0 zone resets slat (usec): min=42, max=12127, avg=279.96, stdev=661.89 clat (msec): min=86, max=383, avg=191.52, stdev=46.12 lat (msec): min=87, max=386, avg=191.81, stdev=46.11 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 207], 80.00th=[ 224], 90.00th=[ 249], 95.00th=[ 271], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 85, max= 256, per=24.73%, avg=163.74, stdev=38.40, samples=62 iops : min= 21, max= 64, avg=40.45, stdev= 9.60, samples=62 lat (msec) : 20=0.04%, 50=0.04%, 100=0.59%, 250=90.82%, 500=8.52% cpu : usr=0.18%, sys=1.91%, ctx=4547, 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=636KiB/s (652kB/s), 158KiB/s-161KiB/s (162kB/s-165kB/s), io=19.6MiB (20.5MB), run=31391-31532msec WRITE: bw=663KiB/s (678kB/s), 164KiB/s-167KiB/s (168kB/s-171kB/s), io=20.4MiB (21.4MB), run=31391-31532msec 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=181062: Mon May 25 03:19:26 2026 read: IOPS=1, BW=58.5MiB/s (61.3MB/s)(40.0MiB/684msec) slat (nsec): min=31047k, max=31047k, avg=31046801.00, stdev= 0.00 clat (nsec): min=604873k, max=604873k, avg=604873345.00, stdev= 0.00 lat (nsec): min=635925k, max=635925k, avg=635924666.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 609], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=0.29%, ctx=6, 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=58.5MiB/s (61.3MB/s), 58.5MiB/s-58.5MiB/s (61.3MB/s-61.3MB/s), io=40.0MiB (41.9MB), run=684-684msec 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