== sanity test 398b: DIO and buffer IO race ============== 21:35:00 (1736994900) /usr/bin/fio 12+0 records in 12+0 records out 12582912 bytes (13 MB) copied, 0.0698094 s, 180 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=23574: Wed Jan 15 21:35:04 2025 read: IOPS=163, BW=653KiB/s (669kB/s)(1480KiB/2265msec) clat (usec): min=3, max=24306, avg=1485.30, stdev=2700.21 lat (usec): min=4, max=24307, avg=1486.00, stdev=2700.20 clat percentiles (usec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 21], 50.00th=[ 31], 60.00th=[ 1369], | 70.00th=[ 2114], 80.00th=[ 2671], 90.00th=[ 3621], 95.00th=[ 4490], | 99.00th=[15139], 99.50th=[23462], 99.90th=[24249], 99.95th=[24249], | 99.99th=[24249] bw ( KiB/s): min= 431, max= 824, per=23.83%, avg=629.75, stdev=173.25, samples=4 iops : min= 107, max= 206, avg=157.25, stdev=43.60, samples=4 write: IOPS=175, BW=703KiB/s (720kB/s)(1592KiB/2265msec) clat (usec): min=83, max=54799, avg=4289.10, stdev=6252.35 lat (usec): min=83, max=54799, avg=4290.29, stdev=6252.55 clat percentiles (usec): | 1.00th=[ 91], 5.00th=[ 143], 10.00th=[ 151], 20.00th=[ 180], | 30.00th=[ 249], 40.00th=[ 1074], 50.00th=[ 1565], 60.00th=[ 2540], | 70.00th=[ 4424], 80.00th=[ 8291], 90.00th=[12387], 95.00th=[16450], | 99.00th=[27919], 99.50th=[36439], 99.90th=[54789], 99.95th=[54789], | 99.99th=[54789] bw ( KiB/s): min= 463, max= 800, per=24.59%, avg=683.75, stdev=150.79, samples=4 iops : min= 115, max= 200, avg=170.75, stdev=38.06, samples=4 lat (usec) : 4=0.13%, 10=5.73%, 20=13.15%, 50=7.03%, 100=0.78% lat (usec) : 250=15.36%, 500=2.21%, 750=0.65%, 1000=2.21% lat (msec) : 2=13.80%, 4=19.66%, 10=11.07%, 20=6.25%, 50=1.82% lat (msec) : 100=0.13% cpu : usr=0.57%, sys=8.52%, ctx=967, 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=23575: Wed Jan 15 21:35:04 2025 read: IOPS=160, BW=640KiB/s (656kB/s)(1436KiB/2242msec) clat (usec): min=4, max=22142, avg=1393.14, stdev=2178.84 lat (usec): min=4, max=22143, avg=1393.96, stdev=2178.76 clat percentiles (usec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 15], 40.00th=[ 24], 50.00th=[ 619], 60.00th=[ 1549], | 70.00th=[ 2008], 80.00th=[ 2671], 90.00th=[ 3425], 95.00th=[ 4146], | 99.00th=[10552], 99.50th=[18220], 99.90th=[22152], 99.95th=[22152], | 99.99th=[22152] bw ( KiB/s): min= 518, max= 720, per=24.12%, avg=637.50, stdev=96.68, samples=4 iops : min= 129, max= 180, avg=159.25, stdev=24.38, samples=4 write: IOPS=182, BW=730KiB/s (747kB/s)(1636KiB/2242msec) clat (usec): min=91, max=58548, avg=4237.26, stdev=6313.85 lat (usec): min=91, max=58549, avg=4238.40, stdev=6313.73 clat percentiles (usec): | 1.00th=[ 125], 5.00th=[ 145], 10.00th=[ 155], 20.00th=[ 184], | 30.00th=[ 260], 40.00th=[ 1045], 50.00th=[ 1500], 60.00th=[ 2409], | 70.00th=[ 4080], 80.00th=[ 7570], 90.00th=[13173], 95.00th=[16581], | 99.00th=[23987], 99.50th=[32900], 99.90th=[58459], 99.95th=[58459], | 99.99th=[58459] bw ( KiB/s): min= 598, max= 792, per=25.80%, avg=717.50, stdev=88.38, samples=4 iops : min= 149, max= 198, avg=179.25, stdev=22.32, samples=4 lat (usec) : 10=6.64%, 20=10.81%, 50=5.08%, 100=0.65%, 250=16.02% lat (usec) : 500=2.47%, 750=0.39%, 1000=2.47% lat (msec) : 2=17.45%, 4=19.40%, 10=9.77%, 20=7.29%, 50=1.43% lat (msec) : 100=0.13% cpu : usr=0.27%, sys=9.10%, ctx=977, 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=23576: Wed Jan 15 21:35:04 2025 read: IOPS=175, BW=703KiB/s (720kB/s)(1564KiB/2224msec) clat (usec): min=3, max=31120, avg=1621.09, stdev=3277.73 lat (usec): min=3, max=31120, avg=1621.76, stdev=3277.73 clat percentiles (usec): | 1.00th=[ 5], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 17], 40.00th=[ 26], 50.00th=[ 81], 60.00th=[ 1500], | 70.00th=[ 1991], 80.00th=[ 2573], 90.00th=[ 3523], 95.00th=[ 4752], | 99.00th=[16712], 99.50th=[29492], 99.90th=[31065], 99.95th=[31065], | 99.99th=[31065] bw ( KiB/s): min= 600, max= 768, per=25.63%, avg=677.50, stdev=73.49, samples=4 iops : min= 150, max= 192, avg=169.25, stdev=18.32, samples=4 write: IOPS=169, BW=678KiB/s (694kB/s)(1508KiB/2224msec) clat (usec): min=101, max=39481, avg=4195.37, stdev=5759.12 lat (usec): min=102, max=39482, avg=4196.72, stdev=5759.44 clat percentiles (usec): | 1.00th=[ 115], 5.00th=[ 141], 10.00th=[ 155], 20.00th=[ 186], | 30.00th=[ 388], 40.00th=[ 1074], 50.00th=[ 1795], 60.00th=[ 2573], | 70.00th=[ 4293], 80.00th=[ 8029], 90.00th=[11863], 95.00th=[16450], | 99.00th=[26084], 99.50th=[32113], 99.90th=[39584], 99.95th=[39584], | 99.99th=[39584] bw ( KiB/s): min= 584, max= 790, per=23.86%, avg=663.50, stdev=96.67, samples=4 iops : min= 146, max= 197, avg=165.75, stdev=23.95, samples=4 lat (usec) : 4=0.26%, 10=5.34%, 20=12.50%, 50=6.77%, 100=1.04% lat (usec) : 250=13.28%, 500=2.86%, 750=0.39%, 1000=2.99% lat (msec) : 2=16.28%, 4=19.66%, 10=10.55%, 20=6.64%, 50=1.43% cpu : usr=0.31%, sys=9.22%, ctx=1038, 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=23577: Wed Jan 15 21:35:04 2025 read: IOPS=176, BW=707KiB/s (724kB/s)(1508KiB/2132msec) clat (usec): min=4, max=21668, avg=1366.09, stdev=2283.92 lat (usec): min=4, max=21668, avg=1366.88, stdev=2283.94 clat percentiles (usec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 15], 40.00th=[ 21], 50.00th=[ 34], 60.00th=[ 1270], | 70.00th=[ 2024], 80.00th=[ 2737], 90.00th=[ 3392], 95.00th=[ 4293], | 99.00th=[13173], 99.50th=[15664], 99.90th=[21627], 99.95th=[21627], | 99.99th=[21627] bw ( KiB/s): min= 670, max= 736, per=26.16%, avg=691.50, stdev=30.04, samples=4 iops : min= 167, max= 184, avg=172.75, stdev= 7.63, samples=4 write: IOPS=183, BW=734KiB/s (751kB/s)(1564KiB/2132msec) clat (usec): min=83, max=41723, avg=4114.89, stdev=5689.57 lat (usec): min=84, max=41725, avg=4116.01, stdev=5689.41 clat percentiles (usec): | 1.00th=[ 101], 5.00th=[ 139], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 343], 40.00th=[ 1123], 50.00th=[ 1680], 60.00th=[ 2474], | 70.00th=[ 4113], 80.00th=[ 7898], 90.00th=[11469], 95.00th=[15008], | 99.00th=[25560], 99.50th=[30802], 99.90th=[41681], 99.95th=[41681], | 99.99th=[41681] bw ( KiB/s): min= 678, max= 848, per=26.16%, avg=727.50, stdev=80.67, samples=4 iops : min= 169, max= 212, avg=181.75, stdev=20.27, samples=4 lat (usec) : 10=7.94%, 20=11.46%, 50=6.51%, 100=0.91%, 250=14.45% lat (usec) : 500=2.47%, 750=1.17%, 1000=2.34% lat (msec) : 2=15.10%, 4=18.62%, 10=11.20%, 20=6.51%, 50=1.30% cpu : usr=0.42%, sys=9.01%, ctx=996, 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=2644KiB/s (2707kB/s), 640KiB/s-707KiB/s (656kB/s-724kB/s), io=5988KiB (6132kB), run=2132-2265msec WRITE: bw=2781KiB/s (2848kB/s), 678KiB/s-734KiB/s (694kB/s-751kB/s), io=6300KiB (6451kB), run=2132-2265msec rand-rw: (groupid=0, jobs=1): err= 0: pid=23570: Wed Jan 15 21:35:10 2025 read: IOPS=44, BW=179KiB/s (183kB/s)(1480KiB/8269msec) clat (usec): min=744, max=43230, avg=2306.37, stdev=3846.56 lat (usec): min=744, max=43231, avg=2307.59, stdev=3846.72 clat percentiles (usec): | 1.00th=[ 766], 5.00th=[ 857], 10.00th=[ 938], 20.00th=[ 1057], | 30.00th=[ 1156], 40.00th=[ 1270], 50.00th=[ 1401], 60.00th=[ 1516], | 70.00th=[ 1647], 80.00th=[ 2008], 90.00th=[ 2868], 95.00th=[ 7504], | 99.00th=[21103], 99.50th=[28443], 99.90th=[43254], 99.95th=[43254], | 99.99th=[43254] bw ( KiB/s): min= 111, max= 304, per=24.45%, avg=174.31, stdev=52.76, samples=16 iops : min= 27, max= 76, avg=43.44, stdev=13.25, samples=16 write: IOPS=48, BW=193KiB/s (197kB/s)(1592KiB/8269msec) clat (usec): min=7961, max=63364, avg=18589.11, stdev=6734.01 lat (usec): min=7964, max=63365, avg=18590.53, stdev=6733.99 clat percentiles (usec): | 1.00th=[ 8979], 5.00th=[10552], 10.00th=[11600], 20.00th=[13042], | 30.00th=[14746], 40.00th=[16581], 50.00th=[18220], 60.00th=[19530], | 70.00th=[20317], 80.00th=[22152], 90.00th=[25035], 95.00th=[29492], | 99.00th=[47449], 99.50th=[55837], 99.90th=[63177], 99.95th=[63177], | 99.99th=[63177] bw ( KiB/s): min= 127, max= 232, per=25.34%, avg=190.31, stdev=34.32, samples=16 iops : min= 31, max= 58, avg=47.44, stdev= 8.66, samples=16 lat (usec) : 750=0.26%, 1000=6.51% lat (msec) : 2=31.64%, 4=6.12%, 10=3.26%, 20=34.64%, 50=17.19% lat (msec) : 100=0.39% cpu : usr=0.41%, sys=1.73%, ctx=845, 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=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=23571: Wed Jan 15 21:35:10 2025 read: IOPS=42, BW=171KiB/s (175kB/s)(1436KiB/8387msec) clat (usec): min=704, max=36409, avg=2314.72, stdev=3558.65 lat (usec): min=705, max=36410, avg=2315.86, stdev=3558.64 clat percentiles (usec): | 1.00th=[ 766], 5.00th=[ 857], 10.00th=[ 930], 20.00th=[ 1029], | 30.00th=[ 1139], 40.00th=[ 1237], 50.00th=[ 1369], 60.00th=[ 1500], | 70.00th=[ 1729], 80.00th=[ 2180], 90.00th=[ 3523], 95.00th=[ 8717], | 99.00th=[16581], 99.50th=[28443], 99.90th=[36439], 99.95th=[36439], | 99.99th=[36439] bw ( KiB/s): min= 79, max= 248, per=23.89%, avg=170.31, stdev=56.23, samples=16 iops : min= 19, max= 62, avg=42.44, stdev=14.05, samples=16 write: IOPS=48, BW=195KiB/s (200kB/s)(1636KiB/8387msec) clat (usec): min=8832, max=67121, avg=18422.00, stdev=6643.72 lat (usec): min=8833, max=67122, avg=18423.78, stdev=6644.08 clat percentiles (usec): | 1.00th=[ 9634], 5.00th=[10421], 10.00th=[11338], 20.00th=[12911], | 30.00th=[14484], 40.00th=[16188], 50.00th=[17957], 60.00th=[19268], | 70.00th=[20317], 80.00th=[22414], 90.00th=[26346], 95.00th=[29492], | 99.00th=[42730], 99.50th=[47449], 99.90th=[67634], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 135, max= 240, per=25.41%, avg=190.81, stdev=35.37, samples=16 iops : min= 33, max= 60, avg=47.56, stdev= 8.82, samples=16 lat (usec) : 750=0.39%, 1000=7.16% lat (msec) : 2=28.78%, 4=6.77%, 10=3.26%, 20=35.42%, 50=17.97% lat (msec) : 100=0.26% cpu : usr=0.13%, sys=1.97%, ctx=831, 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=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=23572: Wed Jan 15 21:35:10 2025 read: IOPS=49, BW=196KiB/s (201kB/s)(1564KiB/7967msec) clat (usec): min=735, max=35422, avg=2292.43, stdev=3449.21 lat (usec): min=736, max=35423, avg=2293.50, stdev=3449.21 clat percentiles (usec): | 1.00th=[ 783], 5.00th=[ 898], 10.00th=[ 938], 20.00th=[ 1037], | 30.00th=[ 1139], 40.00th=[ 1237], 50.00th=[ 1385], 60.00th=[ 1549], | 70.00th=[ 1745], 80.00th=[ 2040], 90.00th=[ 2966], 95.00th=[ 7767], | 99.00th=[21890], 99.50th=[24249], 99.90th=[35390], 99.95th=[35390], | 99.99th=[35390] bw ( KiB/s): min= 104, max= 384, per=28.02%, avg=199.80, stdev=89.17, samples=15 iops : min= 26, max= 96, avg=49.80, stdev=22.29, samples=15 write: IOPS=47, BW=189KiB/s (194kB/s)(1508KiB/7967msec) clat (usec): min=8534, max=47550, avg=18702.45, stdev=6207.73 lat (usec): min=8535, max=47552, avg=18703.85, stdev=6207.80 clat percentiles (usec): | 1.00th=[ 9241], 5.00th=[10552], 10.00th=[11600], 20.00th=[13173], | 30.00th=[15139], 40.00th=[16909], 50.00th=[18220], 60.00th=[19530], | 70.00th=[20841], 80.00th=[22414], 90.00th=[25822], 95.00th=[29492], | 99.00th=[43254], 99.50th=[45876], 99.90th=[47449], 99.95th=[47449], | 99.99th=[47449] bw ( KiB/s): min= 128, max= 240, per=24.90%, avg=187.00, stdev=34.47, samples=15 iops : min= 32, max= 60, avg=46.60, stdev= 8.64, samples=15 lat (usec) : 750=0.13%, 1000=7.81% lat (msec) : 2=31.77%, 4=7.16%, 10=3.26%, 20=30.73%, 50=19.14% cpu : usr=0.34%, sys=1.98%, ctx=839, 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=23573: Wed Jan 15 21:35:10 2025 read: IOPS=46, BW=185KiB/s (189kB/s)(1508KiB/8169msec) clat (usec): min=730, max=24006, avg=2369.72, stdev=3377.05 lat (usec): min=731, max=24007, avg=2370.83, stdev=3377.14 clat percentiles (usec): | 1.00th=[ 775], 5.00th=[ 873], 10.00th=[ 922], 20.00th=[ 1045], | 30.00th=[ 1172], 40.00th=[ 1270], 50.00th=[ 1401], 60.00th=[ 1532], | 70.00th=[ 1762], 80.00th=[ 2180], 90.00th=[ 3261], 95.00th=[10683], | 99.00th=[19006], 99.50th=[23725], 99.90th=[23987], 99.95th=[23987], | 99.99th=[23987] bw ( KiB/s): min= 95, max= 264, per=25.50%, avg=181.81, stdev=52.77, samples=16 iops : min= 23, max= 66, avg=45.31, stdev=13.37, samples=16 write: IOPS=47, BW=191KiB/s (196kB/s)(1564KiB/8169msec) clat (usec): min=9082, max=45567, avg=18556.01, stdev=5975.29 lat (usec): min=9085, max=45569, avg=18557.40, stdev=5975.40 clat percentiles (usec): | 1.00th=[ 9634], 5.00th=[10683], 10.00th=[11469], 20.00th=[13173], | 30.00th=[15008], 40.00th=[16581], 50.00th=[18482], 60.00th=[19530], | 70.00th=[21103], 80.00th=[22676], 90.00th=[25297], 95.00th=[28967], | 99.00th=[39584], 99.50th=[43779], 99.90th=[45351], 99.95th=[45351], | 99.99th=[45351] bw ( KiB/s): min= 135, max= 256, per=25.34%, avg=190.31, stdev=35.41, samples=16 iops : min= 33, max= 64, avg=47.44, stdev= 8.83, samples=16 lat (usec) : 750=0.39%, 1000=7.03% lat (msec) : 2=29.95%, 4=7.68%, 10=2.99%, 20=33.72%, 50=18.23% cpu : usr=0.26%, sys=1.90%, ctx=831, 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=714KiB/s (731kB/s), 171KiB/s-196KiB/s (175kB/s-201kB/s), io=5988KiB (6132kB), run=7967-8387msec WRITE: bw=751KiB/s (769kB/s), 189KiB/s-195KiB/s (194kB/s-200kB/s), io=6300KiB (6451kB), run=7967-8387msec