== sanity test 398b: DIO and buffer IO race ============== 18:05:57 (1718402757) /usr/bin/fio 12+0 records in 12+0 records out 12582912 bytes (13 MB) copied, 0.0736137 s, 171 MB/s mix direct rw 12M to OST0 by fio with 4 jobs... mix buffer rw 12M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.7 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=19519: Fri Jun 14 18:06:00 2024 read: IOPS=173, BW=693KiB/s (710kB/s)(1480KiB/2136msec) clat (usec): min=3, max=34309, avg=1526.48, stdev=3513.77 lat (usec): min=4, max=34310, avg=1527.48, stdev=3513.77 clat percentiles (usec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 17], 50.00th=[ 30], 60.00th=[ 1156], | 70.00th=[ 1811], 80.00th=[ 2311], 90.00th=[ 3261], 95.00th=[ 4178], | 99.00th=[23200], 99.50th=[27657], 99.90th=[34341], 99.95th=[34341], | 99.99th=[34341] bw ( KiB/s): min= 560, max= 854, per=24.89%, avg=697.50, stdev=143.77, samples=4 iops : min= 140, max= 213, avg=174.25, stdev=35.76, samples=4 write: IOPS=186, BW=745KiB/s (763kB/s)(1592KiB/2136msec) clat (usec): min=89, max=32364, avg=3921.28, stdev=6254.96 lat (usec): min=89, max=32364, avg=3922.47, stdev=6254.72 clat percentiles (usec): | 1.00th=[ 96], 5.00th=[ 115], 10.00th=[ 129], 20.00th=[ 163], | 30.00th=[ 186], 40.00th=[ 239], 50.00th=[ 1106], 60.00th=[ 1631], | 70.00th=[ 2769], 80.00th=[ 8356], 90.00th=[12911], 95.00th=[16909], | 99.00th=[29492], 99.50th=[31065], 99.90th=[32375], 99.95th=[32375], | 99.99th=[32375] bw ( KiB/s): min= 584, max= 934, per=25.42%, avg=749.50, stdev=168.26, samples=4 iops : min= 146, max= 233, avg=187.25, stdev=41.88, samples=4 lat (usec) : 4=0.26%, 10=9.64%, 20=10.42%, 50=5.08%, 100=1.04% lat (usec) : 250=20.70%, 500=1.82%, 750=0.65%, 1000=2.99% lat (msec) : 2=16.67%, 4=14.32%, 10=7.29%, 20=6.90%, 50=2.21% cpu : usr=0.14%, sys=7.68%, ctx=860, majf=0, minf=35 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=370,398,0,0 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=19520: Fri Jun 14 18:06:00 2024 read: IOPS=169, BW=678KiB/s (694kB/s)(1436KiB/2118msec) clat (usec): min=3, max=27826, avg=1291.40, stdev=3120.94 lat (usec): min=4, max=27827, avg=1292.05, stdev=3120.95 clat percentiles (usec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 20], 60.00th=[ 51], | 70.00th=[ 1450], 80.00th=[ 2212], 90.00th=[ 3097], 95.00th=[ 4228], | 99.00th=[20841], 99.50th=[24773], 99.90th=[27919], 99.95th=[27919], | 99.99th=[27919] bw ( KiB/s): min= 560, max= 928, per=24.27%, avg=680.00, stdev=170.58, samples=4 iops : min= 140, max= 232, avg=170.00, stdev=42.65, samples=4 write: IOPS=193, BW=772KiB/s (791kB/s)(1636KiB/2118msec) clat (usec): min=91, max=40293, avg=4012.24, stdev=7101.39 lat (usec): min=92, max=40293, avg=4013.32, stdev=7101.78 clat percentiles (usec): | 1.00th=[ 102], 5.00th=[ 119], 10.00th=[ 135], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 200], 50.00th=[ 578], 60.00th=[ 1254], | 70.00th=[ 2474], 80.00th=[ 6915], 90.00th=[14484], 95.00th=[20317], | 99.00th=[33162], 99.50th=[35390], 99.90th=[40109], 99.95th=[40109], | 99.99th=[40109] bw ( KiB/s): min= 624, max= 1088, per=25.92%, avg=764.00, stdev=218.75, samples=4 iops : min= 156, max= 272, avg=191.00, stdev=54.69, samples=4 lat (usec) : 4=0.39%, 10=10.03%, 20=13.02%, 50=4.56%, 100=1.04% lat (usec) : 250=25.13%, 500=1.30%, 750=0.52%, 1000=2.73% lat (msec) : 2=13.41%, 4=13.02%, 10=5.08%, 20=6.38%, 50=3.39% cpu : usr=0.14%, sys=6.90%, ctx=786, majf=0, minf=34 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=359,409,0,0 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=19521: Fri Jun 14 18:06:00 2024 read: IOPS=182, BW=732KiB/s (749kB/s)(1564KiB/2137msec) clat (usec): min=3, max=31187, avg=1505.35, stdev=3549.89 lat (usec): min=3, max=31187, avg=1505.94, stdev=3549.90 clat percentiles (usec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 24], 60.00th=[ 1045], | 70.00th=[ 1631], 80.00th=[ 2343], 90.00th=[ 3163], 95.00th=[ 4228], | 99.00th=[21365], 99.50th=[28705], 99.90th=[31065], 99.95th=[31065], | 99.99th=[31065] bw ( KiB/s): min= 648, max= 800, per=25.98%, avg=728.00, stdev=68.82, samples=4 iops : min= 162, max= 200, avg=182.00, stdev=17.20, samples=4 write: IOPS=176, BW=706KiB/s (723kB/s)(1508KiB/2137msec) clat (usec): min=83, max=57609, avg=4077.28, stdev=6963.85 lat (usec): min=83, max=57609, avg=4078.05, stdev=6963.84 clat percentiles (usec): | 1.00th=[ 88], 5.00th=[ 105], 10.00th=[ 120], 20.00th=[ 153], | 30.00th=[ 178], 40.00th=[ 237], 50.00th=[ 963], 60.00th=[ 1598], | 70.00th=[ 2606], 80.00th=[ 7832], 90.00th=[13435], 95.00th=[18744], | 99.00th=[28967], 99.50th=[39060], 99.90th=[57410], 99.95th=[57410], | 99.99th=[57410] bw ( KiB/s): min= 568, max= 856, per=23.41%, avg=690.00, stdev=125.54, samples=4 iops : min= 142, max= 214, avg=172.50, stdev=31.38, samples=4 lat (usec) : 4=0.52%, 10=12.76%, 20=10.94%, 50=4.17%, 100=1.17% lat (usec) : 250=19.79%, 500=1.69%, 750=1.17%, 1000=2.99% lat (msec) : 2=13.54%, 4=15.62%, 10=5.86%, 20=7.03%, 50=2.60% lat (msec) : 100=0.13% cpu : usr=0.28%, sys=8.52%, ctx=843, majf=0, minf=34 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=391,377,0,0 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=19522: Fri Jun 14 18:06:00 2024 read: IOPS=185, BW=743KiB/s (761kB/s)(1508KiB/2030msec) clat (usec): min=3, max=20638, avg=1270.10, stdev=2214.59 lat (usec): min=3, max=20639, avg=1271.04, stdev=2214.40 clat percentiles (usec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 16], 50.00th=[ 30], 60.00th=[ 1139], | 70.00th=[ 1778], 80.00th=[ 2311], 90.00th=[ 3425], 95.00th=[ 4113], | 99.00th=[12256], 99.50th=[19268], 99.90th=[20579], 99.95th=[20579], | 99.99th=[20579] bw ( KiB/s): min= 680, max= 784, per=25.96%, avg=727.50, stdev=42.97, samples=4 iops : min= 170, max= 196, avg=181.75, stdev=10.78, samples=4 write: IOPS=192, BW=770KiB/s (789kB/s)(1564KiB/2030msec) clat (usec): min=85, max=44964, avg=3944.46, stdev=6781.75 lat (usec): min=86, max=44965, avg=3945.19, stdev=6781.76 clat percentiles (usec): | 1.00th=[ 98], 5.00th=[ 113], 10.00th=[ 126], 20.00th=[ 165], | 30.00th=[ 186], 40.00th=[ 241], 50.00th=[ 898], 60.00th=[ 1565], | 70.00th=[ 2573], 80.00th=[ 6652], 90.00th=[12911], 95.00th=[18220], | 99.00th=[30540], 99.50th=[36439], 99.90th=[44827], 99.95th=[44827], | 99.99th=[44827] bw ( KiB/s): min= 640, max= 902, per=25.83%, avg=761.50, stdev=107.72, samples=4 iops : min= 160, max= 225, avg=190.25, stdev=26.71, samples=4 lat (usec) : 4=0.39%, 10=10.81%, 20=10.29%, 50=4.43%, 100=0.91% lat (usec) : 250=21.35%, 500=2.86%, 750=0.52%, 1000=3.52% lat (msec) : 2=14.19%, 4=15.23%, 10=7.55%, 20=5.47%, 50=2.47% cpu : usr=0.25%, sys=8.67%, ctx=854, majf=0, minf=33 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=377,391,0,0 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=2802KiB/s (2869kB/s), 678KiB/s-743KiB/s (694kB/s-761kB/s), io=5988KiB (6132kB), run=2030-2137msec WRITE: bw=2948KiB/s (3019kB/s), 706KiB/s-772KiB/s (723kB/s-791kB/s), io=6300KiB (6451kB), run=2030-2137msec rand-rw: (groupid=0, jobs=1): err= 0: pid=19524: Fri Jun 14 18:06:09 2024 read: IOPS=34, BW=140KiB/s (143kB/s)(1480KiB/10580msec) clat (usec): min=671, max=32548, avg=2492.70, stdev=3664.99 lat (usec): min=672, max=32549, avg=2493.81, stdev=3665.08 clat percentiles (usec): | 1.00th=[ 758], 5.00th=[ 824], 10.00th=[ 914], 20.00th=[ 1012], | 30.00th=[ 1139], 40.00th=[ 1270], 50.00th=[ 1500], 60.00th=[ 1827], | 70.00th=[ 2212], 80.00th=[ 2671], 90.00th=[ 3326], 95.00th=[ 7111], | 99.00th=[20579], 99.50th=[32375], 99.90th=[32637], 99.95th=[32637], | 99.99th=[32637] bw ( KiB/s): min= 80, max= 272, per=24.74%, avg=139.55, stdev=50.79, samples=20 iops : min= 20, max= 68, avg=34.85, stdev=12.67, samples=20 write: IOPS=37, BW=150KiB/s (154kB/s)(1592KiB/10580msec) clat (usec): min=12471, max=59648, avg=24239.29, stdev=7290.86 lat (usec): min=12472, max=59650, avg=24240.67, stdev=7290.89 clat percentiles (usec): | 1.00th=[13042], 5.00th=[15008], 10.00th=[16057], 20.00th=[17695], | 30.00th=[19792], 40.00th=[21627], 50.00th=[23462], 60.00th=[25035], | 70.00th=[26608], 80.00th=[29230], 90.00th=[32637], 95.00th=[38536], | 99.00th=[51643], 99.50th=[53740], 99.90th=[59507], 99.95th=[59507], | 99.99th=[59507] bw ( KiB/s): min= 104, max= 176, per=25.22%, avg=149.55, stdev=21.28, samples=20 iops : min= 26, max= 44, avg=37.35, stdev= 5.33, samples=20 lat (usec) : 750=0.39%, 1000=8.72% lat (msec) : 2=22.14%, 4=13.02%, 10=1.95%, 20=17.06%, 50=36.20% lat (msec) : 100=0.52% cpu : usr=0.13%, sys=1.42%, ctx=896, majf=0, minf=33 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=370,398,0,0 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=19525: Fri Jun 14 18:06:09 2024 read: IOPS=33, BW=135KiB/s (139kB/s)(1436KiB/10610msec) clat (usec): min=687, max=30903, avg=2537.93, stdev=3344.16 lat (usec): min=687, max=30903, avg=2539.08, stdev=3344.13 clat percentiles (usec): | 1.00th=[ 824], 5.00th=[ 873], 10.00th=[ 938], 20.00th=[ 1037], | 30.00th=[ 1156], 40.00th=[ 1336], 50.00th=[ 1614], 60.00th=[ 1991], | 70.00th=[ 2278], 80.00th=[ 2671], 90.00th=[ 3425], 95.00th=[ 9241], | 99.00th=[18220], 99.50th=[20841], 99.90th=[30802], 99.95th=[30802], | 99.99th=[30802] bw ( KiB/s): min= 72, max= 239, per=24.16%, avg=136.25, stdev=45.50, samples=20 iops : min= 18, max= 59, avg=33.95, stdev=11.31, samples=20 write: IOPS=38, BW=154KiB/s (158kB/s)(1636KiB/10610msec) clat (usec): min=11176, max=70918, avg=23685.65, stdev=7124.30 lat (usec): min=11177, max=70919, avg=23686.94, stdev=7124.33 clat percentiles (usec): | 1.00th=[13173], 5.00th=[14877], 10.00th=[15664], 20.00th=[17171], | 30.00th=[19268], 40.00th=[21365], 50.00th=[22938], 60.00th=[24511], | 70.00th=[26608], 80.00th=[28443], 90.00th=[32113], 95.00th=[35914], | 99.00th=[44827], 99.50th=[51119], 99.90th=[70779], 99.95th=[70779], | 99.99th=[70779] bw ( KiB/s): min= 112, max= 176, per=25.74%, avg=152.65, stdev=17.55, samples=20 iops : min= 28, max= 44, avg=38.05, stdev= 4.37, samples=20 lat (usec) : 750=0.26%, 1000=7.42% lat (msec) : 2=20.57%, 4=14.71%, 10=1.56%, 20=18.62%, 50=36.46% lat (msec) : 100=0.39% cpu : usr=0.22%, sys=1.35%, ctx=925, majf=0, minf=31 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=359,409,0,0 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=19526: Fri Jun 14 18:06:09 2024 read: IOPS=38, BW=152KiB/s (156kB/s)(1564KiB/10282msec) clat (usec): min=694, max=31546, avg=2606.88, stdev=3873.93 lat (usec): min=695, max=31546, avg=2608.06, stdev=3873.92 clat percentiles (usec): | 1.00th=[ 775], 5.00th=[ 873], 10.00th=[ 955], 20.00th=[ 1045], | 30.00th=[ 1156], 40.00th=[ 1319], 50.00th=[ 1614], 60.00th=[ 1893], | 70.00th=[ 2245], 80.00th=[ 2671], 90.00th=[ 3392], 95.00th=[ 9503], | 99.00th=[26084], 99.50th=[28967], 99.90th=[31589], 99.95th=[31589], | 99.99th=[31589] bw ( KiB/s): min= 72, max= 280, per=27.50%, avg=155.10, stdev=59.76, samples=20 iops : min= 18, max= 70, avg=38.70, stdev=14.97, samples=20 write: IOPS=36, BW=147KiB/s (150kB/s)(1508KiB/10282msec) clat (usec): min=11961, max=51574, avg=24542.00, stdev=7144.25 lat (usec): min=11961, max=51575, avg=24543.58, stdev=7144.16 clat percentiles (usec): | 1.00th=[13173], 5.00th=[14353], 10.00th=[15664], 20.00th=[18220], | 30.00th=[20841], 40.00th=[22414], 50.00th=[23987], 60.00th=[25822], | 70.00th=[26870], 80.00th=[28967], 90.00th=[33424], 95.00th=[38536], | 99.00th=[47449], 99.50th=[49546], 99.90th=[51643], 99.95th=[51643], | 99.99th=[51643] bw ( KiB/s): min= 111, max= 176, per=24.74%, avg=146.70, stdev=17.19, samples=20 iops : min= 27, max= 44, avg=36.60, stdev= 4.39, samples=20 lat (usec) : 750=0.13%, 1000=7.16% lat (msec) : 2=24.74%, 4=14.71%, 10=1.82%, 20=14.71%, 50=36.59% lat (msec) : 100=0.13% cpu : usr=0.15%, sys=1.48%, ctx=935, majf=0, minf=34 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=391,377,0,0 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=19527: Fri Jun 14 18:06:09 2024 read: IOPS=36, BW=147KiB/s (150kB/s)(1508KiB/10273msec) clat (usec): min=721, max=33126, avg=2622.95, stdev=3760.81 lat (usec): min=721, max=33126, avg=2624.04, stdev=3760.82 clat percentiles (usec): | 1.00th=[ 758], 5.00th=[ 873], 10.00th=[ 938], 20.00th=[ 1074], | 30.00th=[ 1172], 40.00th=[ 1352], 50.00th=[ 1582], 60.00th=[ 2024], | 70.00th=[ 2278], 80.00th=[ 2704], 90.00th=[ 3490], 95.00th=[ 9503], | 99.00th=[23462], 99.50th=[29492], 99.90th=[33162], 99.95th=[33162], | 99.99th=[33162] bw ( KiB/s): min= 64, max= 216, per=25.59%, avg=144.35, stdev=41.21, samples=20 iops : min= 16, max= 54, avg=36.05, stdev=10.28, samples=20 write: IOPS=38, BW=152KiB/s (156kB/s)(1564KiB/10273msec) clat (usec): min=12391, max=72902, avg=23718.73, stdev=7301.19 lat (usec): min=12393, max=72903, avg=23720.13, stdev=7301.22 clat percentiles (usec): | 1.00th=[13173], 5.00th=[14877], 10.00th=[15664], 20.00th=[17433], | 30.00th=[19530], 40.00th=[21365], 50.00th=[23200], 60.00th=[24511], | 70.00th=[26346], 80.00th=[28181], 90.00th=[31589], 95.00th=[35914], | 99.00th=[51643], 99.50th=[57410], 99.90th=[72877], 99.95th=[72877], | 99.99th=[72877] bw ( KiB/s): min= 120, max= 176, per=25.56%, avg=151.55, stdev=15.07, samples=20 iops : min= 30, max= 44, avg=37.85, stdev= 3.82, samples=20 lat (usec) : 750=0.39%, 1000=6.77% lat (msec) : 2=21.87%, 4=16.02%, 10=1.82%, 20=18.36%, 50=34.24% lat (msec) : 100=0.52% cpu : usr=0.18%, sys=1.41%, ctx=912, majf=0, minf=33 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=377,391,0,0 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=564KiB/s (578kB/s), 135KiB/s-152KiB/s (139kB/s-156kB/s), io=5988KiB (6132kB), run=10273-10610msec WRITE: bw=594KiB/s (608kB/s), 147KiB/s-154KiB/s (150kB/s-158kB/s), io=6300KiB (6451kB), run=10273-10610msec