== sanity test 398c: run fio to test AIO ================= 03:53:30 (1768553610) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.606255 s, 69.2 MB/s osc.lustre-OST0000-osc-ffff92455078c000.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=186744: Fri Jan 16 03:54:03 2026 write: IOPS=114, BW=458KiB/s (469kB/s)(10.0MiB/22369msec); 0 zone resets slat (usec): min=22, max=15252, avg=180.96, stdev=624.87 clat (msec): min=21, max=333, avg=139.50, stdev=39.23 lat (msec): min=21, max=333, avg=139.68, stdev=39.22 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 84], 10.00th=[ 94], 20.00th=[ 111], | 30.00th=[ 120], 40.00th=[ 127], 50.00th=[ 136], 60.00th=[ 142], | 70.00th=[ 153], 80.00th=[ 169], 90.00th=[ 190], 95.00th=[ 211], | 99.00th=[ 266], 99.50th=[ 292], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 334] bw ( KiB/s): min= 222, max= 768, per=25.17%, avg=456.91, stdev=111.41, samples=44 iops : min= 55, max= 192, avg=113.89, stdev=27.85, samples=44 lat (msec) : 50=0.35%, 100=13.48%, 250=84.96%, 500=1.21% cpu : usr=0.18%, sys=1.13%, ctx=2536, 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=186745: Fri Jan 16 03:54:03 2026 write: IOPS=113, BW=454KiB/s (465kB/s)(10.0MiB/22556msec); 0 zone resets slat (usec): min=20, max=9980, avg=173.93, stdev=566.87 clat (msec): min=27, max=276, avg=139.84, stdev=38.64 lat (msec): min=28, max=276, avg=140.02, stdev=38.64 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 85], 10.00th=[ 94], 20.00th=[ 113], | 30.00th=[ 120], 40.00th=[ 127], 50.00th=[ 133], 60.00th=[ 142], | 70.00th=[ 153], 80.00th=[ 165], 90.00th=[ 192], 95.00th=[ 218], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 235, max= 766, per=24.80%, avg=450.18, stdev=106.05, samples=44 iops : min= 58, max= 191, avg=112.18, stdev=26.53, samples=44 lat (msec) : 50=0.08%, 100=13.79%, 250=84.26%, 500=1.88% cpu : usr=0.23%, sys=1.05%, ctx=2191, 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=186746: Fri Jan 16 03:54:03 2026 write: IOPS=113, BW=454KiB/s (465kB/s)(10.0MiB/22546msec); 0 zone resets slat (usec): min=21, max=13177, avg=170.57, stdev=586.18 clat (msec): min=49, max=311, avg=139.70, stdev=39.05 lat (msec): min=49, max=311, avg=139.88, stdev=39.06 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 85], 10.00th=[ 95], 20.00th=[ 109], | 30.00th=[ 118], 40.00th=[ 126], 50.00th=[ 136], 60.00th=[ 142], | 70.00th=[ 150], 80.00th=[ 167], 90.00th=[ 192], 95.00th=[ 215], | 99.00th=[ 253], 99.50th=[ 309], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 237, max= 768, per=24.80%, avg=450.20, stdev=111.61, samples=44 iops : min= 59, max= 192, avg=112.18, stdev=27.89, samples=44 lat (msec) : 50=0.16%, 100=13.36%, 250=85.43%, 500=1.05% cpu : usr=0.20%, sys=0.92%, ctx=1984, 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=186747: Fri Jan 16 03:54:03 2026 write: IOPS=113, BW=454KiB/s (465kB/s)(10.0MiB/22535msec); 0 zone resets slat (usec): min=21, max=11025, avg=185.03, stdev=652.08 clat (msec): min=16, max=306, avg=139.77, stdev=38.11 lat (msec): min=16, max=306, avg=139.96, stdev=38.09 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 87], 10.00th=[ 95], 20.00th=[ 111], | 30.00th=[ 120], 40.00th=[ 128], 50.00th=[ 134], 60.00th=[ 142], | 70.00th=[ 153], 80.00th=[ 167], 90.00th=[ 192], 95.00th=[ 211], | 99.00th=[ 249], 99.50th=[ 275], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 309] bw ( KiB/s): min= 235, max= 768, per=24.91%, avg=452.11, stdev=110.46, samples=44 iops : min= 58, max= 192, avg=112.66, stdev=27.63, samples=44 lat (msec) : 20=0.04%, 50=0.08%, 100=12.11%, 250=86.80%, 500=0.98% cpu : usr=0.16%, sys=1.14%, ctx=2576, 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=1816KiB/s (1860kB/s), 454KiB/s-458KiB/s (465kB/s-469kB/s), io=40.0MiB (41.9MB), run=22369-22556msec 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=186761: Fri Jan 16 03:54:38 2026 read: IOPS=46, BW=187KiB/s (192kB/s)(5048KiB/26937msec) slat (usec): min=2746, max=58496, avg=12616.16, stdev=7178.33 clat (msec): min=10, max=315, avg=157.40, stdev=44.02 lat (msec): min=20, max=324, avg=170.02, stdev=46.08 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 96], 10.00th=[ 105], 20.00th=[ 118], | 30.00th=[ 131], 40.00th=[ 140], 50.00th=[ 150], 60.00th=[ 165], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 309], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 103, max= 312, per=25.21%, avg=186.77, stdev=50.59, samples=53 iops : min= 25, max= 78, avg=46.26, stdev=12.71, samples=53 write: IOPS=48, BW=193KiB/s (197kB/s)(5192KiB/26937msec); 0 zone resets slat (usec): min=30, max=14166, avg=227.44, stdev=824.55 clat (msec): min=55, max=287, avg=163.92, stdev=41.31 lat (msec): min=55, max=288, avg=164.15, stdev=41.33 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 105], 10.00th=[ 111], 20.00th=[ 126], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 243], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 110, max= 303, per=24.99%, avg=192.66, stdev=45.60, samples=53 iops : min= 27, max= 75, avg=47.72, stdev=11.38, samples=53 lat (msec) : 20=0.04%, 50=0.04%, 100=4.84%, 250=91.76%, 500=3.32% cpu : usr=0.37%, sys=2.03%, ctx=4307, majf=0, minf=14 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=186762: Fri Jan 16 03:54:38 2026 read: IOPS=45, BW=184KiB/s (188kB/s)(4976KiB/27065msec) slat (usec): min=67, max=97477, avg=12504.13, stdev=7545.91 clat (msec): min=15, max=325, avg=158.75, stdev=45.54 lat (msec): min=24, max=329, avg=171.26, stdev=47.39 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 95], 10.00th=[ 105], 20.00th=[ 120], | 30.00th=[ 133], 40.00th=[ 144], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 197], 90.00th=[ 218], 95.00th=[ 239], | 99.00th=[ 284], 99.50th=[ 300], 99.90th=[ 317], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 88, max= 320, per=24.54%, avg=181.87, stdev=47.93, samples=53 iops : min= 22, max= 80, avg=45.04, stdev=12.02, samples=53 write: IOPS=48, BW=194KiB/s (199kB/s)(5264KiB/27065msec); 0 zone resets slat (usec): min=25, max=18906, avg=292.32, stdev=1102.95 clat (msec): min=53, max=333, avg=164.67, stdev=42.80 lat (msec): min=53, max=333, avg=164.96, stdev=42.77 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 105], 10.00th=[ 112], 20.00th=[ 127], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 241], | 99.00th=[ 279], 99.50th=[ 300], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 102, max= 327, per=24.97%, avg=192.55, stdev=44.74, samples=53 iops : min= 25, max= 81, avg=47.68, stdev=11.21, samples=53 lat (msec) : 20=0.08%, 50=0.16%, 100=5.43%, 250=90.51%, 500=3.83% cpu : usr=0.28%, sys=1.95%, ctx=4066, majf=0, minf=14 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=186763: Fri Jan 16 03:54:38 2026 read: IOPS=46, BW=185KiB/s (189kB/s)(4984KiB/26952msec) slat (usec): min=2302, max=62867, avg=12760.13, stdev=7560.18 clat (msec): min=18, max=287, avg=157.63, stdev=42.98 lat (msec): min=26, max=312, avg=170.39, stdev=44.93 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 97], 10.00th=[ 106], 20.00th=[ 120], | 30.00th=[ 131], 40.00th=[ 142], 50.00th=[ 153], 60.00th=[ 165], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 109, max= 272, per=24.95%, avg=184.87, stdev=50.04, samples=53 iops : min= 27, max= 68, avg=45.77, stdev=12.53, samples=53 write: IOPS=48, BW=195KiB/s (200kB/s)(5256KiB/26952msec); 0 zone resets slat (usec): min=25, max=12994, avg=240.19, stdev=805.57 clat (msec): min=78, max=304, avg=164.45, stdev=41.93 lat (msec): min=79, max=304, avg=164.69, stdev=41.94 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 105], 10.00th=[ 113], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 150], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 118, max= 320, per=25.21%, avg=194.38, stdev=45.37, samples=53 iops : min= 29, max= 80, avg=48.15, stdev=11.42, samples=53 lat (msec) : 20=0.04%, 50=0.08%, 100=5.16%, 250=91.88%, 500=2.85% cpu : usr=0.33%, sys=2.13%, ctx=4374, majf=0, minf=14 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=186764: Fri Jan 16 03:54:38 2026 read: IOPS=46, BW=188KiB/s (192kB/s)(5060KiB/26917msec) slat (usec): min=52, max=64242, avg=12854.88, stdev=7504.08 clat (msec): min=19, max=299, avg=158.47, stdev=42.74 lat (msec): min=30, max=322, avg=171.34, stdev=44.58 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 97], 10.00th=[ 107], 20.00th=[ 122], | 30.00th=[ 134], 40.00th=[ 144], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 180], 80.00th=[ 194], 90.00th=[ 220], 95.00th=[ 236], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 117, max= 304, per=25.34%, avg=187.74, stdev=40.96, samples=53 iops : min= 29, max= 76, avg=46.47, stdev=10.31, samples=53 write: IOPS=48, BW=192KiB/s (197kB/s)(5180KiB/26917msec); 0 zone resets slat (usec): min=25, max=12182, avg=219.04, stdev=728.54 clat (msec): min=27, max=345, avg=164.40, stdev=41.83 lat (msec): min=27, max=345, avg=164.62, stdev=41.84 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 105], 10.00th=[ 114], 20.00th=[ 126], | 30.00th=[ 136], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 102, max= 296, per=24.81%, avg=191.32, stdev=46.77, samples=53 iops : min= 25, max= 74, avg=47.36, stdev=11.73, samples=53 lat (msec) : 20=0.04%, 50=0.20%, 100=4.69%, 250=92.27%, 500=2.81% cpu : usr=0.30%, sys=1.94%, ctx=4170, majf=0, minf=15 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=741KiB/s (759kB/s), 184KiB/s-188KiB/s (188kB/s-192kB/s), io=19.6MiB (20.5MB), run=26917-27065msec WRITE: bw=772KiB/s (790kB/s), 192KiB/s-195KiB/s (197kB/s-200kB/s), io=20.4MiB (21.4MB), run=26917-27065msec 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=186772: Fri Jan 16 03:54:46 2026 read: IOPS=2, BW=107MiB/s (112MB/s)(40.0MiB/375msec) slat (nsec): min=31785k, max=31785k, avg=31785130.00, stdev= 0.00 clat (nsec): min=321351k, max=321351k, avg=321351162.00, stdev= 0.00 lat (nsec): min=353141k, max=353141k, avg=353140838.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=3.48%, ctx=9, 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=107MiB/s (112MB/s), 107MiB/s-107MiB/s (112MB/s-112MB/s), io=40.0MiB (41.9MB), run=375-375msec 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