== sanity test 398b: DIO and buffer IO race ============== 15:16:17 (1780341377) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.59234 s, 9.0 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 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-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179178: Mon Jun 1 15:18:15 2026 read: IOPS=14, BW=59.0KiB/s (61.4kB/s)(5992KiB/99871msec) clat (usec): min=35, max=946942, avg=37112.05, stdev=32290.84 lat (usec): min=35, max=946943, avg=37119.26, stdev=32291.53 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 9765], 10.00th=[ 14746], 20.00th=[ 19530], | 30.00th=[ 23462], 40.00th=[ 27395], 50.00th=[ 32375], 60.00th=[ 36963], | 70.00th=[ 43779], 80.00th=[ 52167], 90.00th=[ 64226], 95.00th=[ 74974], | 99.00th=[115868], 99.50th=[139461], 99.90th=[168821], 99.95th=[943719], | 99.99th=[943719] bw ( KiB/s): min= 15, max= 111, per=25.00%, avg=59.74, stdev=20.40, samples=196 iops : min= 3, max= 27, avg=14.30, stdev= 5.15, samples=196 write: IOPS=15, BW=63.0KiB/s (64.6kB/s)(6296KiB/99871msec); 0 zone resets clat (usec): min=864, max=163188, avg=27883.61, stdev=27643.59 lat (usec): min=865, max=163189, avg=27892.82, stdev=27643.18 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1336], 10.00th=[ 1631], 20.00th=[ 3294], | 30.00th=[ 6456], 40.00th=[ 13829], 50.00th=[ 20579], 60.00th=[ 27657], | 70.00th=[ 35914], 80.00th=[ 47449], 90.00th=[ 65799], 95.00th=[ 84411], | 99.00th=[119014], 99.50th=[135267], 99.90th=[149947], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 15, max= 152, per=25.26%, avg=63.14, stdev=23.15, samples=195 iops : min= 3, max= 38, avg=15.15, stdev= 5.84, samples=195 lat (usec) : 50=0.13%, 100=1.50%, 250=0.10%, 1000=0.23% lat (msec) : 2=6.48%, 4=4.98%, 10=7.16%, 20=14.71%, 50=44.27% lat (msec) : 100=18.26%, 250=2.15%, 1000=0.03% cpu : usr=0.08%, sys=6.41%, ctx=6666, majf=0, minf=14 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=1498,1574,0,0 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=179179: Mon Jun 1 15:18:15 2026 read: IOPS=14, BW=59.3KiB/s (60.7kB/s)(5940KiB/100208msec) clat (usec): min=36, max=181564, avg=37115.20, stdev=23242.36 lat (usec): min=36, max=181565, avg=37116.59, stdev=23242.28 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 10683], 10.00th=[ 14484], 20.00th=[ 19268], | 30.00th=[ 23725], 40.00th=[ 28181], 50.00th=[ 32637], 60.00th=[ 38011], | 70.00th=[ 43779], 80.00th=[ 51643], 90.00th=[ 65799], 95.00th=[ 78119], | 99.00th=[125305], 99.50th=[133694], 99.90th=[179307], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 7, max= 111, per=24.71%, avg=59.06, stdev=20.79, samples=197 iops : min= 1, max= 27, avg=14.13, stdev= 5.26, samples=197 write: IOPS=15, BW=63.3KiB/s (64.9kB/s)(6348KiB/100208msec); 0 zone resets clat (usec): min=899, max=801581, avg=28179.34, stdev=35258.09 lat (usec): min=900, max=801582, avg=28183.40, stdev=35258.13 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1352], 10.00th=[ 1549], 20.00th=[ 3097], | 30.00th=[ 5735], 40.00th=[ 11863], 50.00th=[ 20055], 60.00th=[ 26870], | 70.00th=[ 34866], 80.00th=[ 47449], 90.00th=[ 67634], 95.00th=[ 81265], | 99.00th=[132645], 99.50th=[147850], 99.90th=[250610], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 166, per=25.18%, avg=62.96, stdev=25.38, samples=197 iops : min= 1, max= 41, avg=15.11, stdev= 6.36, samples=197 lat (usec) : 50=0.26%, 100=1.30%, 250=0.13%, 750=0.03%, 1000=0.10% lat (msec) : 2=7.13%, 4=5.08%, 10=7.45%, 20=14.84%, 50=43.55% lat (msec) : 100=17.51%, 250=2.57%, 1000=0.03% cpu : usr=0.10%, sys=6.44%, ctx=6701, majf=0, minf=15 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=1485,1587,0,0 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=179180: Mon Jun 1 15:18:15 2026 read: IOPS=15, BW=60.7KiB/s (62.1kB/s)(6028KiB/99324msec) clat (usec): min=32, max=854213, avg=36327.82, stdev=31006.07 lat (usec): min=32, max=854214, avg=36329.84, stdev=31006.19 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 8029], 10.00th=[ 14222], 20.00th=[ 18744], | 30.00th=[ 22414], 40.00th=[ 26346], 50.00th=[ 31327], 60.00th=[ 36439], | 70.00th=[ 42730], 80.00th=[ 50594], 90.00th=[ 64750], 95.00th=[ 78119], | 99.00th=[112722], 99.50th=[130548], 99.90th=[212861], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 23, max= 119, per=25.38%, avg=60.66, stdev=21.02, samples=195 iops : min= 5, max= 29, avg=14.54, stdev= 5.31, samples=195 write: IOPS=15, BW=63.0KiB/s (64.5kB/s)(6260KiB/99324msec); 0 zone resets clat (usec): min=837, max=227673, avg=28249.88, stdev=28030.05 lat (usec): min=839, max=227675, avg=28256.55, stdev=28028.90 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1352], 10.00th=[ 1696], 20.00th=[ 3523], | 30.00th=[ 6390], 40.00th=[ 13304], 50.00th=[ 21103], 60.00th=[ 27919], | 70.00th=[ 36963], 80.00th=[ 49021], 90.00th=[ 67634], 95.00th=[ 83362], | 99.00th=[121111], 99.50th=[130548], 99.90th=[170918], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 7, max= 135, per=25.02%, avg=62.55, stdev=24.75, samples=196 iops : min= 1, max= 33, avg=15.03, stdev= 6.24, samples=196 lat (usec) : 50=0.26%, 100=1.89%, 250=0.13%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.35%, 4=4.75%, 10=7.16%, 20=15.17%, 50=44.08% lat (msec) : 100=17.90%, 250=2.12%, 1000=0.03% cpu : usr=0.11%, sys=6.27%, ctx=6675, majf=0, minf=15 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=1507,1565,0,0 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=179181: Mon Jun 1 15:18:15 2026 read: IOPS=15, BW=60.4KiB/s (61.9kB/s)(6052KiB/100181msec) clat (usec): min=41, max=218247, avg=35976.30, stdev=24378.40 lat (usec): min=43, max=218248, avg=35980.52, stdev=24379.31 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 5669], 10.00th=[ 14091], 20.00th=[ 18744], | 30.00th=[ 22938], 40.00th=[ 26346], 50.00th=[ 30540], 60.00th=[ 35390], | 70.00th=[ 41157], 80.00th=[ 50594], 90.00th=[ 65274], 95.00th=[ 77071], | 99.00th=[135267], 99.50th=[147850], 99.90th=[183501], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 23, max= 118, per=25.42%, avg=60.75, stdev=20.31, samples=195 iops : min= 5, max= 29, avg=14.57, stdev= 5.14, samples=195 write: IOPS=15, BW=62.2KiB/s (63.7kB/s)(6236KiB/100181msec); 0 zone resets clat (usec): min=807, max=865853, avg=29119.37, stdev=35774.84 lat (usec): min=808, max=865857, avg=29122.13, stdev=35774.07 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1336], 10.00th=[ 1647], 20.00th=[ 3621], | 30.00th=[ 6849], 40.00th=[ 14353], 50.00th=[ 21365], 60.00th=[ 27395], | 70.00th=[ 36439], 80.00th=[ 50070], 90.00th=[ 69731], 95.00th=[ 82314], | 99.00th=[131597], 99.50th=[147850], 99.90th=[204473], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 127, per=24.87%, avg=62.18, stdev=24.52, samples=196 iops : min= 1, max= 31, avg=14.93, stdev= 6.16, samples=196 lat (usec) : 50=0.16%, 100=1.92%, 250=0.26%, 1000=0.13% lat (msec) : 2=6.35%, 4=4.88%, 10=6.74%, 20=15.56%, 50=43.62% lat (msec) : 100=18.07%, 250=2.28%, 1000=0.03% cpu : usr=0.11%, sys=6.26%, ctx=6668, majf=0, minf=16 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=1513,1559,0,0 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=240KiB/s (245kB/s), 59.3KiB/s-60.7KiB/s (60.7kB/s-62.1kB/s), io=23.4MiB (24.6MB), run=99324-100208msec WRITE: bw=251KiB/s (257kB/s), 62.2KiB/s-63.3KiB/s (63.7kB/s-64.9kB/s), io=24.6MiB (25.7MB), run=99324-100208msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179174: Mon Jun 1 15:18:46 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(5992KiB/130046msec) clat (msec): min=5, max=952, avg=34.43, stdev=39.52 lat (msec): min=5, max=952, avg=34.43, stdev=39.52 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 50], 90.00th=[ 75], 95.00th=[ 100], | 99.00th=[ 159], 99.50th=[ 178], 99.90th=[ 326], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 160, per=25.44%, avg=46.56, stdev=31.56, samples=252 iops : min= 1, max= 40, avg=11.00, stdev= 7.94, samples=252 write: IOPS=12, BW=48.4KiB/s (49.6kB/s)(6296KiB/130046msec); 0 zone resets clat (msec): min=10, max=334, avg=49.61, stdev=35.97 lat (msec): min=10, max=334, avg=49.61, stdev=35.97 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 46], | 70.00th=[ 58], 80.00th=[ 73], 90.00th=[ 99], 95.00th=[ 118], | 99.00th=[ 174], 99.50th=[ 213], 99.90th=[ 284], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 151, per=25.15%, avg=48.28, stdev=30.46, samples=255 iops : min= 1, max= 37, avg=11.43, stdev= 7.66, samples=255 lat (msec) : 10=4.69%, 20=23.99%, 50=43.39%, 100=20.80%, 250=6.97% lat (msec) : 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=2.64%, ctx=5008, majf=0, minf=14 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=1498,1574,0,0 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=179175: Mon Jun 1 15:18:46 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5940KiB/130572msec) clat (msec): min=4, max=834, avg=33.74, stdev=37.79 lat (msec): min=4, max=834, avg=33.75, stdev=37.79 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 34], 80.00th=[ 47], 90.00th=[ 80], 95.00th=[ 103], | 99.00th=[ 155], 99.50th=[ 174], 99.90th=[ 236], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 183, per=25.26%, avg=46.23, stdev=33.03, samples=251 iops : min= 1, max= 45, avg=10.91, stdev= 8.31, samples=251 write: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6348KiB/130572msec); 0 zone resets clat (msec): min=10, max=335, avg=50.45, stdev=36.12 lat (msec): min=10, max=335, avg=50.46, stdev=36.12 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 38], 60.00th=[ 47], | 70.00th=[ 62], 80.00th=[ 77], 90.00th=[ 101], 95.00th=[ 121], | 99.00th=[ 171], 99.50th=[ 197], 99.90th=[ 275], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 7, max= 183, per=25.26%, avg=48.50, stdev=31.72, samples=256 iops : min= 1, max= 45, avg=11.48, stdev= 7.97, samples=256 lat (msec) : 10=4.88%, 20=24.22%, 50=42.58%, 100=20.38%, 250=7.81% lat (msec) : 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=2.51%, ctx=5008, majf=0, minf=14 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=1485,1587,0,0 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=179176: Mon Jun 1 15:18:46 2026 read: IOPS=11, BW=46.3KiB/s (47.5kB/s)(6028KiB/130066msec) clat (msec): min=4, max=328, avg=33.99, stdev=32.12 lat (msec): min=4, max=328, avg=33.99, stdev=32.11 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 28], | 70.00th=[ 37], 80.00th=[ 51], 90.00th=[ 78], 95.00th=[ 102], | 99.00th=[ 155], 99.50th=[ 165], 99.90th=[ 230], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 166, per=25.35%, avg=46.39, stdev=32.36, samples=254 iops : min= 1, max= 41, avg=10.96, stdev= 8.16, samples=254 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(6260KiB/130066msec); 0 zone resets clat (msec): min=10, max=844, avg=50.13, stdev=41.09 lat (msec): min=10, max=844, avg=50.13, stdev=41.09 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 45], | 70.00th=[ 58], 80.00th=[ 77], 90.00th=[ 101], 95.00th=[ 120], | 99.00th=[ 174], 99.50th=[ 207], 99.90th=[ 257], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 160, per=25.08%, avg=48.15, stdev=32.17, samples=254 iops : min= 1, max= 40, avg=11.40, stdev= 8.09, samples=254 lat (msec) : 10=5.11%, 20=25.16%, 50=41.54%, 100=20.48%, 250=7.58% lat (msec) : 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=2.53%, ctx=4865, majf=0, minf=14 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=1507,1565,0,0 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=179177: Mon Jun 1 15:18:46 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6052KiB/129706msec) clat (msec): min=4, max=300, avg=34.36, stdev=33.25 lat (msec): min=4, max=300, avg=34.36, stdev=33.25 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 78], 95.00th=[ 104], | 99.00th=[ 157], 99.50th=[ 186], 99.90th=[ 228], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 168, per=25.62%, avg=46.88, stdev=32.55, samples=252 iops : min= 1, max= 42, avg=11.08, stdev= 8.18, samples=252 write: IOPS=12, BW=48.1KiB/s (49.2kB/s)(6236KiB/129706msec); 0 zone resets clat (msec): min=7, max=853, avg=49.61, stdev=40.31 lat (msec): min=7, max=853, avg=49.61, stdev=40.31 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 19], 20.00th=[ 23], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 47], | 70.00th=[ 59], 80.00th=[ 74], 90.00th=[ 96], 95.00th=[ 115], | 99.00th=[ 182], 99.50th=[ 203], 99.90th=[ 288], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 159, per=24.85%, avg=47.71, stdev=30.95, samples=255 iops : min= 1, max= 39, avg=11.29, stdev= 7.80, samples=255 lat (msec) : 10=5.44%, 20=24.02%, 50=41.93%, 100=21.45%, 250=7.03% lat (msec) : 500=0.10%, 1000=0.03% cpu : usr=0.07%, sys=2.53%, ctx=4905, majf=0, minf=15 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=1513,1559,0,0 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=184KiB/s (188kB/s), 45.5KiB/s-46.7KiB/s (46.6kB/s-47.8kB/s), io=23.4MiB (24.6MB), run=129706-130572msec WRITE: bw=193KiB/s (197kB/s), 48.1KiB/s-48.6KiB/s (49.2kB/s-49.8kB/s), io=24.6MiB (25.7MB), run=129706-130572msec mix direct rw 16384 by fio with 4 jobs... mix buffer rw 16384 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179224: Mon Jun 1 15:19:23 2026 read: IOPS=14, BW=232KiB/s (238kB/s)(5920KiB/25478msec) clat (usec): min=50, max=171820, avg=37795.95, stdev=25461.43 lat (usec): min=50, max=171822, avg=37797.31, stdev=25461.34 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 71], 10.00th=[ 13173], 20.00th=[ 19792], | 30.00th=[ 24249], 40.00th=[ 28443], 50.00th=[ 34341], 60.00th=[ 39060], | 70.00th=[ 45876], 80.00th=[ 52691], 90.00th=[ 66847], 95.00th=[ 90702], | 99.00th=[123208], 99.50th=[139461], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 94, max= 415, per=27.49%, avg=233.38, stdev=78.00, samples=50 iops : min= 5, max= 25, avg=13.86, stdev= 4.93, samples=50 write: IOPS=15, BW=250KiB/s (256kB/s)(6368KiB/25478msec); 0 zone resets clat (usec): min=1615, max=140966, avg=28306.01, stdev=26499.79 lat (usec): min=1617, max=140968, avg=28308.24, stdev=26499.71 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2245], 10.00th=[ 3097], 20.00th=[ 4948], | 30.00th=[ 8586], 40.00th=[ 13304], 50.00th=[ 20841], 60.00th=[ 28181], | 70.00th=[ 38011], 80.00th=[ 49021], 90.00th=[ 66323], 95.00th=[ 77071], | 99.00th=[117965], 99.50th=[135267], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 64, max= 444, per=28.08%, avg=251.04, stdev=85.97, samples=50 iops : min= 4, max= 27, avg=14.98, stdev= 5.34, samples=50 lat (usec) : 100=3.78%, 250=0.26%, 500=0.13% lat (msec) : 2=1.69%, 4=6.38%, 10=9.77%, 20=13.28%, 50=44.27% lat (msec) : 100=17.84%, 250=2.60% cpu : usr=0.09%, sys=7.01%, ctx=1582, majf=0, minf=13 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=179225: Mon Jun 1 15:19:23 2026 read: IOPS=13, BW=209KiB/s (214kB/s)(5744KiB/27528msec) clat (usec): min=50, max=148460, avg=41732.14, stdev=24817.74 lat (usec): min=50, max=148461, avg=41733.40, stdev=24817.69 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 77], 10.00th=[ 17957], 20.00th=[ 24511], | 30.00th=[ 27919], 40.00th=[ 31327], 50.00th=[ 36963], 60.00th=[ 41681], | 70.00th=[ 51119], 80.00th=[ 60556], 90.00th=[ 71828], 95.00th=[ 86508], | 99.00th=[121111], 99.50th=[145753], 99.90th=[147850], 99.95th=[147850], | 99.99th=[147850] bw ( KiB/s): min= 54, max= 380, per=24.51%, avg=208.09, stdev=73.90, samples=54 iops : min= 3, max= 23, avg=12.28, stdev= 4.65, samples=54 write: IOPS=14, BW=238KiB/s (243kB/s)(6544KiB/27528msec); 0 zone resets clat (usec): min=1465, max=172335, avg=30171.91, stdev=28332.00 lat (usec): min=1466, max=172338, avg=30174.93, stdev=28331.61 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2376], 10.00th=[ 3458], 20.00th=[ 5932], | 30.00th=[ 9372], 40.00th=[ 15795], 50.00th=[ 23462], 60.00th=[ 29492], | 70.00th=[ 39060], 80.00th=[ 47973], 90.00th=[ 71828], 95.00th=[ 86508], | 99.00th=[123208], 99.50th=[139461], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 63, max= 413, per=26.67%, avg=238.39, stdev=87.72, samples=54 iops : min= 3, max= 25, avg=14.17, stdev= 5.52, samples=54 lat (usec) : 100=2.86% lat (msec) : 2=1.43%, 4=5.08%, 10=10.16%, 20=10.42%, 50=45.70% lat (msec) : 100=21.09%, 250=3.26% cpu : usr=0.10%, sys=6.99%, ctx=1712, majf=0, minf=14 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=179226: Mon Jun 1 15:19:23 2026 read: IOPS=13, BW=222KiB/s (227kB/s)(6256KiB/28183msec) clat (usec): min=34, max=182923, avg=39926.99, stdev=26353.17 lat (usec): min=34, max=182926, avg=39928.34, stdev=26353.25 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 73], 10.00th=[ 13173], 20.00th=[ 21890], | 30.00th=[ 25560], 40.00th=[ 30016], 50.00th=[ 34866], 60.00th=[ 40109], | 70.00th=[ 47449], 80.00th=[ 55837], 90.00th=[ 76022], 95.00th=[ 90702], | 99.00th=[121111], 99.50th=[130548], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 62, max= 384, per=26.18%, avg=222.24, stdev=79.32, samples=55 iops : min= 3, max= 24, avg=13.15, stdev= 5.06, samples=55 write: IOPS=13, BW=214KiB/s (219kB/s)(6032KiB/28183msec); 0 zone resets clat (usec): min=1145, max=228188, avg=33089.99, stdev=32780.26 lat (usec): min=1146, max=228190, avg=33093.38, stdev=32782.50 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 2008], 10.00th=[ 3294], 20.00th=[ 6325], | 30.00th=[ 10159], 40.00th=[ 17695], 50.00th=[ 23987], 60.00th=[ 30016], | 70.00th=[ 40633], 80.00th=[ 55313], 90.00th=[ 74974], 95.00th=[ 96994], | 99.00th=[152044], 99.50th=[175113], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 31, max= 444, per=23.61%, avg=211.09, stdev=102.67, samples=55 iops : min= 1, max= 27, avg=12.45, stdev= 6.46, samples=55 lat (usec) : 50=0.65%, 100=2.99%, 250=0.52% lat (msec) : 2=2.34%, 4=4.04%, 10=8.33%, 20=11.20%, 50=45.05% lat (msec) : 100=20.96%, 250=3.91% cpu : usr=0.10%, sys=6.68%, ctx=1636, majf=0, minf=14 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=179227: Mon Jun 1 15:19:23 2026 read: IOPS=13, BW=222KiB/s (227kB/s)(6032KiB/27160msec) clat (usec): min=37, max=173377, avg=40037.04, stdev=25344.57 lat (usec): min=38, max=173378, avg=40038.23, stdev=25344.60 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 68], 10.00th=[ 12911], 20.00th=[ 21627], | 30.00th=[ 26608], 40.00th=[ 30802], 50.00th=[ 36439], 60.00th=[ 43254], | 70.00th=[ 49021], 80.00th=[ 56886], 90.00th=[ 70779], 95.00th=[ 84411], | 99.00th=[127402], 99.50th=[137364], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 32, max= 383, per=25.94%, avg=220.23, stdev=71.35, samples=53 iops : min= 2, max= 23, avg=13.04, stdev= 4.46, samples=53 write: IOPS=14, BW=230KiB/s (236kB/s)(6256KiB/27160msec); 0 zone resets clat (usec): min=1559, max=133601, avg=30211.02, stdev=27964.86 lat (usec): min=1561, max=133604, avg=30213.84, stdev=27964.56 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2147], 10.00th=[ 3425], 20.00th=[ 5604], | 30.00th=[ 8455], 40.00th=[ 14877], 50.00th=[ 21103], 60.00th=[ 29230], | 70.00th=[ 39060], 80.00th=[ 51643], 90.00th=[ 70779], 95.00th=[ 86508], | 99.00th=[110625], 99.50th=[127402], 99.90th=[133694], 99.95th=[133694], | 99.99th=[133694] bw ( KiB/s): min= 61, max= 411, per=25.73%, avg=230.00, stdev=78.71, samples=53 iops : min= 3, max= 25, avg=13.64, stdev= 4.94, samples=53 lat (usec) : 50=0.26%, 100=3.39%, 250=0.13% lat (msec) : 2=2.08%, 4=4.56%, 10=10.68%, 20=10.55%, 50=42.97% lat (msec) : 100=22.66%, 250=2.73% cpu : usr=0.08%, sys=6.84%, ctx=1588, majf=0, minf=15 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=850KiB/s (870kB/s), 209KiB/s-232KiB/s (214kB/s-238kB/s), io=23.4MiB (24.5MB), run=25478-28183msec WRITE: bw=894KiB/s (916kB/s), 214KiB/s-250KiB/s (219kB/s-256kB/s), io=24.6MiB (25.8MB), run=25478-28183msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179219: Mon Jun 1 15:19:33 2026 read: IOPS=9, BW=151KiB/s (155kB/s)(5920KiB/39166msec) clat (msec): min=6, max=164, avg=42.59, stdev=31.00 lat (msec): min=6, max=164, avg=42.59, stdev=31.00 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 61], 90.00th=[ 89], 95.00th=[ 116], | 99.00th=[ 144], 99.50th=[ 165], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 31, max= 401, per=24.79%, avg=151.47, stdev=88.95, samples=76 iops : min= 1, max= 25, avg= 8.74, stdev= 5.62, samples=76 write: IOPS=10, BW=163KiB/s (166kB/s)(6368KiB/39166msec); 0 zone resets clat (msec): min=10, max=279, avg=58.69, stdev=39.45 lat (msec): min=10, max=279, avg=58.70, stdev=39.45 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 46], 60.00th=[ 55], | 70.00th=[ 68], 80.00th=[ 81], 90.00th=[ 118], 95.00th=[ 138], | 99.00th=[ 192], 99.50th=[ 268], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 403, per=25.10%, avg=161.42, stdev=81.08, samples=77 iops : min= 1, max= 25, avg= 9.36, stdev= 5.16, samples=77 lat (msec) : 10=0.65%, 20=11.46%, 50=52.34%, 100=24.22%, 250=11.07% lat (msec) : 500=0.26% cpu : usr=0.04%, sys=2.61%, ctx=1319, majf=0, minf=12 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=179220: Mon Jun 1 15:19:33 2026 read: IOPS=9, BW=147KiB/s (151kB/s)(5744KiB/39026msec) clat (msec): min=5, max=173, avg=42.00, stdev=29.43 lat (msec): min=5, max=173, avg=42.00, stdev=29.43 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 47], 80.00th=[ 58], 90.00th=[ 84], 95.00th=[ 102], | 99.00th=[ 165], 99.50th=[ 167], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 31, max= 349, per=24.35%, avg=148.76, stdev=76.30, samples=76 iops : min= 1, max= 21, avg= 8.55, stdev= 4.83, samples=76 write: IOPS=10, BW=168KiB/s (172kB/s)(6544KiB/39026msec); 0 zone resets clat (msec): min=13, max=215, avg=58.25, stdev=36.61 lat (msec): min=13, max=215, avg=58.25, stdev=36.61 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 57], | 70.00th=[ 67], 80.00th=[ 84], 90.00th=[ 103], 95.00th=[ 138], | 99.00th=[ 192], 99.50th=[ 207], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 31, max= 383, per=25.94%, avg=166.78, stdev=79.62, samples=77 iops : min= 1, max= 23, avg= 9.70, stdev= 5.04, samples=77 lat (msec) : 10=0.52%, 20=11.07%, 50=50.91%, 100=29.17%, 250=8.33% cpu : usr=0.06%, sys=2.41%, ctx=1332, majf=0, minf=10 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=179221: Mon Jun 1 15:19:33 2026 read: IOPS=10, BW=160KiB/s (164kB/s)(6256KiB/39087msec) clat (msec): min=5, max=178, avg=42.75, stdev=31.74 lat (msec): min=5, max=178, avg=42.75, stdev=31.74 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 39], | 70.00th=[ 46], 80.00th=[ 59], 90.00th=[ 83], 95.00th=[ 109], | 99.00th=[ 159], 99.50th=[ 176], 99.90th=[ 180], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 31, max= 535, per=26.23%, avg=160.25, stdev=99.27, samples=77 iops : min= 1, max= 33, avg= 9.29, stdev= 6.30, samples=77 write: IOPS=9, BW=154KiB/s (158kB/s)(6032KiB/39087msec); 0 zone resets clat (msec): min=12, max=316, avg=58.91, stdev=39.64 lat (msec): min=12, max=316, avg=58.92, stdev=39.63 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 54], | 70.00th=[ 66], 80.00th=[ 84], 90.00th=[ 109], 95.00th=[ 132], | 99.00th=[ 201], 99.50th=[ 279], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 31, max= 381, per=23.75%, avg=152.74, stdev=75.22, samples=77 iops : min= 1, max= 23, avg= 8.82, stdev= 4.73, samples=77 lat (msec) : 10=1.04%, 20=11.20%, 50=51.82%, 100=25.13%, 250=10.55% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=2.37%, ctx=1296, majf=0, minf=12 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=179222: Mon Jun 1 15:19:33 2026 read: IOPS=9, BW=154KiB/s (158kB/s)(6032KiB/39168msec) clat (msec): min=7, max=203, avg=43.75, stdev=33.40 lat (msec): min=7, max=203, avg=43.75, stdev=33.40 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 48], 80.00th=[ 61], 90.00th=[ 86], 95.00th=[ 118], | 99.00th=[ 171], 99.50th=[ 190], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 31, max= 415, per=25.23%, avg=154.13, stdev=81.46, samples=76 iops : min= 1, max= 25, avg= 8.89, stdev= 5.16, samples=76 write: IOPS=9, BW=160KiB/s (164kB/s)(6256KiB/39168msec); 0 zone resets clat (msec): min=14, max=280, avg=57.40, stdev=37.13 lat (msec): min=14, max=280, avg=57.40, stdev=37.13 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 47], 60.00th=[ 54], | 70.00th=[ 64], 80.00th=[ 81], 90.00th=[ 103], 95.00th=[ 132], | 99.00th=[ 205], 99.50th=[ 257], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 413, per=25.00%, avg=160.72, stdev=83.58, samples=76 iops : min= 1, max= 25, avg= 9.30, stdev= 5.28, samples=76 lat (msec) : 10=0.78%, 20=11.59%, 50=51.69%, 100=26.69%, 250=8.98% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=2.48%, ctx=1268, majf=0, minf=12 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=612KiB/s (626kB/s), 147KiB/s-160KiB/s (151kB/s-164kB/s), io=23.4MiB (24.5MB), run=39026-39168msec WRITE: bw=643KiB/s (659kB/s), 154KiB/s-168KiB/s (158kB/s-172kB/s), io=24.6MiB (25.8MB), run=39026-39168msec mix direct rw 1048576 by fio with 4 jobs... mix buffer rw 1048576 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179243: Mon Jun 1 15:19:46 2026 read: IOPS=1, BW=1752KiB/s (1794kB/s)(7168KiB/4091msec) clat (usec): min=888, max=1869.6k, avg=366798.10, stdev=668836.27 lat (usec): min=890, max=1869.6k, avg=366799.56, stdev=668836.43 clat percentiles (usec): | 1.00th=[ 889], 5.00th=[ 889], 10.00th=[ 889], | 20.00th=[ 17695], 30.00th=[ 85459], 40.00th=[ 85459], | 50.00th=[ 139461], 60.00th=[ 219153], 70.00th=[ 219153], | 80.00th=[ 235930], 90.00th=[1870660], 95.00th=[1870660], | 99.00th=[1870660], 99.50th=[1870660], 99.90th=[1870660], | 99.95th=[1870660], 99.99th=[1870660] bw ( KiB/s): min= 1434, max= 4071, per=55.68%, avg=2389.75, stdev=1155.17, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1252KiB/s (1282kB/s)(5120KiB/4091msec); 0 zone resets clat (msec): min=172, max=450, avg=291.72, stdev=115.60 lat (msec): min=172, max=450, avg=291.82, stdev=115.62 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 279], 60.00th=[ 279], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 1906, max= 2031, per=33.06%, avg=1986.67, stdev=69.97, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 lat (usec) : 1000=8.33% lat (msec) : 20=8.33%, 100=8.33%, 250=41.67%, 500=25.00%, 2000=8.33% cpu : usr=0.02%, sys=12.20%, ctx=552, majf=0, minf=13 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=7,5,0,0 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=179244: Mon Jun 1 15:19:46 2026 read: IOPS=0, BW=429KiB/s (440kB/s)(2048KiB/4771msec) clat (msec): min=97, max=723, avg=410.59, stdev=442.19 lat (msec): min=97, max=723, avg=410.59, stdev=442.19 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 99], | 30.00th=[ 99], 40.00th=[ 99], 50.00th=[ 99], 60.00th=[ 726], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 1395, max= 2011, per=39.68%, avg=1703.00, stdev=435.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2146KiB/s (2198kB/s)(10.0MiB/4771msec); 0 zone resets clat (msec): min=87, max=2119, avg=390.65, stdev=624.82 lat (msec): min=87, max=2119, avg=390.75, stdev=624.84 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 90], | 30.00th=[ 95], 40.00th=[ 114], 50.00th=[ 133], 60.00th=[ 176], | 70.00th=[ 211], 80.00th=[ 326], 90.00th=[ 558], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 1906, max= 4063, per=50.04%, avg=3006.75, stdev=1211.19, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=33.33%, 250=33.33%, 500=8.33%, 750=16.67%, >=2000=8.33% cpu : usr=0.02%, sys=12.85%, ctx=167, majf=0, minf=12 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=2,10,0,0 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=179245: Mon Jun 1 15:19:46 2026 read: IOPS=1, BW=1442KiB/s (1477kB/s)(6144KiB/4260msec) clat (usec): min=353, max=249925, avg=106361.07, stdev=119170.12 lat (usec): min=354, max=249926, avg=106362.29, stdev=119170.33 clat percentiles (usec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 515], | 30.00th=[ 515], 40.00th=[ 2835], 50.00th=[ 2835], 60.00th=[156238], | 70.00th=[227541], 80.00th=[227541], 90.00th=[250610], 95.00th=[250610], | 99.00th=[250610], 99.50th=[250610], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 1906, max= 8126, per=100.00%, avg=5016.00, stdev=4398.20, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=1, BW=1442KiB/s (1477kB/s)(6144KiB/4260msec); 0 zone resets clat (msec): min=76, max=2133, avg=593.67, stdev=766.08 lat (msec): min=76, max=2133, avg=593.75, stdev=766.09 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 334], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 2140], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 1906, max= 2880, per=36.78%, avg=2210.00, stdev=450.31, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 4=8.33%, 100=8.33%, 250=25.00%, 500=33.33%, >=2000=8.33% cpu : usr=0.00%, sys=10.75%, ctx=179, majf=0, minf=13 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=6,6,0,0 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=179246: Mon Jun 1 15:19:46 2026 read: IOPS=1, BW=1237KiB/s (1267kB/s)(5120KiB/4138msec) clat (usec): min=519, max=220668, avg=80074.08, stdev=97654.63 lat (usec): min=520, max=220669, avg=80075.45, stdev=97654.91 clat percentiles (usec): | 1.00th=[ 519], 5.00th=[ 519], 10.00th=[ 519], 20.00th=[ 519], | 30.00th=[ 1795], 40.00th=[ 1795], 50.00th=[ 34866], 60.00th=[ 34866], | 70.00th=[141558], 80.00th=[141558], 90.00th=[221250], 95.00th=[221250], | 99.00th=[221250], 99.50th=[221250], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1732KiB/s (1774kB/s)(7168KiB/4138msec); 0 zone resets clat (msec): min=148, max=1862, avg=523.35, stdev=598.94 lat (msec): min=148, max=1862, avg=523.56, stdev=598.86 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 234], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 300], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 435], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 1412, max= 6071, per=62.66%, avg=3765.33, stdev=2329.87, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 50=8.33%, 250=33.33%, 500=33.33%, 2000=8.33% cpu : usr=0.02%, sys=11.77%, ctx=104, majf=0, minf=13 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=5,7,0,0 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=4293KiB/s (4396kB/s), 429KiB/s-1752KiB/s (440kB/s-1794kB/s), io=20.0MiB (20.0MB), run=4091-4771msec WRITE: bw=6010KiB/s (6154kB/s), 1252KiB/s-2146KiB/s (1282kB/s-2198kB/s), io=28.0MiB (29.4MB), run=4091-4771msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179248: Mon Jun 1 15:19:47 2026 read: IOPS=1, BW=1427KiB/s (1461kB/s)(7168KiB/5023msec) clat (msec): min=63, max=1672, avg=566.57, stdev=630.54 lat (msec): min=63, max=1672, avg=566.57, stdev=630.54 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 64], | 30.00th=[ 65], 40.00th=[ 65], 50.00th=[ 288], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 1116], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 2019, max= 2048, per=49.86%, avg=2032.80, stdev=11.84, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=0, BW=1019KiB/s (1044kB/s)(5120KiB/5023msec); 0 zone resets clat (msec): min=88, max=245, avg=174.13, stdev=64.62 lat (msec): min=88, max=245, avg=174.23, stdev=64.64 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 89], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 161], 60.00th=[ 161], | 70.00th=[ 230], 80.00th=[ 230], 90.00th=[ 247], 95.00th=[ 247], | 99.00th=[ 247], 99.50th=[ 247], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 2035, max= 4039, per=53.21%, avg=3037.00, stdev=1417.04, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (msec) : 100=33.33%, 250=33.33%, 500=8.33%, 750=8.33%, 2000=16.67% cpu : usr=0.00%, sys=3.64%, ctx=74, majf=0, minf=10 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=7,5,0,0 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=179249: Mon Jun 1 15:19:47 2026 read: IOPS=0, BW=409KiB/s (419kB/s)(2048KiB/5007msec) clat (usec): min=72285, max=78531, avg=75408.41, stdev=4416.15 lat (usec): min=72287, max=78533, avg=75410.50, stdev=4417.13 clat percentiles (usec): | 1.00th=[71828], 5.00th=[71828], 10.00th=[71828], 20.00th=[71828], | 30.00th=[71828], 40.00th=[71828], 50.00th=[71828], 60.00th=[78119], | 70.00th=[78119], 80.00th=[78119], 90.00th=[78119], 95.00th=[78119], | 99.00th=[78119], 99.50th=[78119], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 1492, max= 2019, per=43.06%, avg=1755.50, stdev=372.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2045KiB/s (2094kB/s)(10.0MiB/5007msec); 0 zone resets clat (msec): min=69, max=2528, avg=474.18, stdev=773.51 lat (msec): min=69, max=2529, avg=474.36, stdev=773.53 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 93], | 30.00th=[ 99], 40.00th=[ 103], 50.00th=[ 103], 60.00th=[ 109], | 70.00th=[ 163], 80.00th=[ 558], 90.00th=[ 919], 95.00th=[ 2534], | 99.00th=[ 2534], 99.50th=[ 2534], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 2023, max= 6059, per=53.28%, avg=3041.25, stdev=2011.86, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 lat (msec) : 100=41.67%, 250=33.33%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=4.47%, ctx=95, majf=0, minf=11 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=2,10,0,0 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=179250: Mon Jun 1 15:19:47 2026 read: IOPS=1, BW=1301KiB/s (1332kB/s)(6144KiB/4722msec) clat (msec): min=68, max=460, avg=247.87, stdev=159.55 lat (msec): min=68, max=460, avg=247.87, stdev=159.55 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 161], 50.00th=[ 161], 60.00th=[ 342], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 2035, max= 4047, per=82.75%, avg=3373.67, stdev=1159.33, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1301KiB/s (1332kB/s)(6144KiB/4722msec); 0 zone resets clat (msec): min=82, max=2487, avg=531.72, stdev=959.49 lat (msec): min=82, max=2487, avg=531.83, stdev=959.49 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 87], | 30.00th=[ 87], 40.00th=[ 161], 50.00th=[ 161], 60.00th=[ 163], | 70.00th=[ 209], 80.00th=[ 209], 90.00th=[ 2500], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 2035, max= 4039, per=49.16%, avg=2806.25, stdev=962.20, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (msec) : 100=25.00%, 250=41.67%, 500=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=3.75%, ctx=95, majf=0, minf=11 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=6,6,0,0 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=179251: Mon Jun 1 15:19:47 2026 read: IOPS=1, BW=1026KiB/s (1051kB/s)(5120KiB/4989msec) clat (msec): min=58, max=391, avg=227.45, stdev=140.80 lat (msec): min=58, max=391, avg=227.45, stdev=140.80 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 59], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 2035, max= 4039, per=74.49%, avg=3037.00, stdev=1417.04, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1437KiB/s (1471kB/s)(7168KiB/4989msec); 0 zone resets clat (msec): min=52, max=2370, avg=534.86, stdev=829.50 lat (msec): min=53, max=2370, avg=534.96, stdev=829.50 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 70], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 201], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 535], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 1612, max= 4047, per=45.01%, avg=2569.00, stdev=1298.42, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=25.00%, 250=25.00%, 500=33.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.99%, ctx=90, majf=0, minf=13 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=5,7,0,0 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=4077KiB/s (4175kB/s), 409KiB/s-1427KiB/s (419kB/s-1461kB/s), io=20.0MiB (20.0MB), run=4722-5023msec WRITE: bw=5708KiB/s (5845kB/s), 1019KiB/s-2045KiB/s (1044kB/s-2094kB/s), io=28.0MiB (29.4MB), run=4722-5023msec mix direct rw 4194304 by fio with 4 jobs... mix buffer rw 4194304 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179260: Mon Jun 1 15:19:58 2026 read: IOPS=1, BW=5774KiB/s (5913kB/s)(12.0MiB/2128msec) clat (msec): min=188, max=1003, avg=683.93, stdev=434.82 lat (msec): min=188, max=1003, avg=683.93, stdev=434.82 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 188], | 30.00th=[ 188], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.04%, ctx=50, 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=3,0,0,0 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=179261: Mon Jun 1 15:19:58 2026 read: IOPS=0, BW=1932KiB/s (1978kB/s)(4096KiB/2120msec) clat (nsec): min=716323k, max=716323k, avg=716322569.00, stdev= 0.00 lat (nsec): min=716325k, max=716325k, avg=716324688.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3864KiB/s (3957kB/s)(8192KiB/2120msec); 0 zone resets clat (msec): min=590, max=761, avg=675.82, stdev=121.01 lat (msec): min=593, max=761, avg=677.49, stdev=119.35 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 760], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 8047, max= 8047, per=52.06%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=5.14%, ctx=59, majf=0, minf=10 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=1,2,0,0 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=179262: Mon Jun 1 15:19:58 2026 write: IOPS=1, BW=5804KiB/s (5944kB/s)(12.0MiB/2117msec); 0 zone resets clat (msec): min=242, max=1197, avg=677.03, stdev=483.03 lat (msec): min=246, max=1197, avg=679.05, stdev=481.51 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 243], | 30.00th=[ 243], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 6470, max= 8110, per=47.17%, avg=7290.00, stdev=1159.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=6.71%, ctx=108, 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=0,3,0,0 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=179263: Mon Jun 1 15:19:58 2026 write: IOPS=1, BW=7670KiB/s (7855kB/s)(12.0MiB/1602msec); 0 zone resets clat (msec): min=202, max=1113, avg=522.82, stdev=512.06 lat (msec): min=203, max=1113, avg=523.70, stdev=511.65 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 253], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min=14003, max=14003, per=90.60%, avg=14003.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.06%, sys=6.93%, ctx=50, 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=0,3,0,0 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=7699KiB/s (7884kB/s), 1932KiB/s-5774KiB/s (1978kB/s-5913kB/s), io=16.0MiB (16.8MB), run=2120-2128msec WRITE: bw=15.1MiB/s (15.8MB/s), 3864KiB/s-7670KiB/s (3957kB/s-7855kB/s), io=32.0MiB (33.6MB), run=1602-2120msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179264: Mon Jun 1 15:19:58 2026 read: IOPS=1, BW=6823KiB/s (6987kB/s)(12.0MiB/1801msec) clat (msec): min=524, max=662, avg=573.82, stdev=76.61 lat (msec): min=524, max=662, avg=573.82, stdev=76.61 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 527], 10.00th=[ 527], 20.00th=[ 527], | 30.00th=[ 527], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 5720, max= 8062, per=75.75%, avg=6891.00, stdev=1656.04, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=16.06%, ctx=554, majf=0, minf=7 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=3,0,0,0 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=179265: Mon Jun 1 15:19:58 2026 read: IOPS=0, BW=2361KiB/s (2417kB/s)(4096KiB/1735msec) clat (nsec): min=449338k, max=449338k, avg=449337905.00, stdev= 0.00 lat (nsec): min=449340k, max=449340k, avg=449340481.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 5565, max= 5565, per=61.17%, avg=5565.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4722KiB/s (4835kB/s)(8192KiB/1735msec); 0 zone resets clat (msec): min=436, max=664, avg=550.58, stdev=161.19 lat (msec): min=436, max=666, avg=551.58, stdev=162.15 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 8110, max= 8110, per=58.09%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=5.94%, ctx=203, majf=0, minf=10 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=1,2,0,0 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=179266: Mon Jun 1 15:19:58 2026 write: IOPS=1, BW=5236KiB/s (5361kB/s)(12.0MiB/2347msec); 0 zone resets clat (msec): min=174, max=1119, avg=723.83, stdev=490.53 lat (msec): min=175, max=1119, avg=724.28, stdev=490.55 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8062, max= 8192, per=58.21%, avg=8127.00, stdev=91.92, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.20%, ctx=49, majf=0, minf=7 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=0,3,0,0 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=179267: Mon Jun 1 15:19:58 2026 write: IOPS=1, BW=7161KiB/s (7333kB/s)(12.0MiB/1716msec); 0 zone resets clat (msec): min=224, max=972, avg=506.75, stdev=406.34 lat (msec): min=224, max=972, avg=507.36, stdev=406.28 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 5634, max= 5634, per=40.36%, avg=5634.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=7.23%, ctx=66, 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=0,3,0,0 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=9097KiB/s (9316kB/s), 2361KiB/s-6823KiB/s (2417kB/s-6987kB/s), io=16.0MiB (16.8MB), run=1735-1801msec WRITE: bw=13.6MiB/s (14.3MB/s), 4722KiB/s-7161KiB/s (4835kB/s-7333kB/s), io=32.0MiB (33.6MB), run=1716-2347msec