== sanity test 398b: DIO and buffer IO race ============== 22:43:54 (1767325434) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.93101 s, 17.2 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=186238: Thu Jan 1 22:44:57 2026 read: IOPS=28, BW=113KiB/s (115kB/s)(5992KiB/53204msec) clat (usec): min=82, max=662162, avg=19506.25, stdev=20199.05 lat (usec): min=83, max=662163, avg=19509.11, stdev=20197.97 clat percentiles (usec): | 1.00th=[ 176], 5.00th=[ 5932], 10.00th=[ 8225], 20.00th=[ 10683], | 30.00th=[ 12649], 40.00th=[ 14615], 50.00th=[ 16909], 60.00th=[ 19792], | 70.00th=[ 22676], 80.00th=[ 26346], 90.00th=[ 32637], 95.00th=[ 38011], | 99.00th=[ 60031], 99.50th=[ 74974], 99.90th=[116917], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 15, max= 184, per=24.93%, avg=111.70, stdev=29.24, samples=105 iops : min= 3, max= 46, avg=27.47, stdev= 7.38, samples=105 write: IOPS=29, BW=118KiB/s (121kB/s)(6296KiB/53204msec); 0 zone resets clat (usec): min=696, max=106991, avg=15091.90, stdev=13285.83 lat (usec): min=697, max=106993, avg=15094.99, stdev=13290.78 clat percentiles (usec): | 1.00th=[ 889], 5.00th=[ 1205], 10.00th=[ 1827], 20.00th=[ 2835], | 30.00th=[ 4883], 40.00th=[ 9110], 50.00th=[ 12387], 60.00th=[ 15401], | 70.00th=[ 19792], 80.00th=[ 25560], 90.00th=[ 32900], 95.00th=[ 39584], | 99.00th=[ 56361], 99.50th=[ 67634], 99.90th=[ 89654], 99.95th=[107480], | 99.99th=[107480] bw ( KiB/s): min= 47, max= 200, per=25.11%, avg=118.00, stdev=30.46, samples=104 iops : min= 11, max= 50, avg=29.05, stdev= 7.63, samples=104 lat (usec) : 100=0.07%, 250=0.78%, 500=1.01%, 750=0.10%, 1000=1.04% lat (msec) : 2=4.88%, 4=8.01%, 10=14.26%, 20=35.42%, 50=32.68% lat (msec) : 100=1.63%, 250=0.10%, 750=0.03% cpu : usr=0.10%, sys=16.02%, ctx=7730, 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=186240: Thu Jan 1 22:44:57 2026 read: IOPS=27, BW=111KiB/s (114kB/s)(5940KiB/53485msec) clat (usec): min=76, max=150636, avg=19378.10, stdev=11936.40 lat (usec): min=76, max=150637, avg=19378.85, stdev=11936.43 clat percentiles (usec): | 1.00th=[ 172], 5.00th=[ 6718], 10.00th=[ 8455], 20.00th=[ 10683], | 30.00th=[ 12387], 40.00th=[ 14484], 50.00th=[ 17171], 60.00th=[ 19792], | 70.00th=[ 23200], 80.00th=[ 27132], 90.00th=[ 33817], 95.00th=[ 39584], | 99.00th=[ 62653], 99.50th=[ 72877], 99.90th=[100140], 99.95th=[149947], | 99.99th=[149947] bw ( KiB/s): min= 7, max= 191, per=24.66%, avg=110.49, stdev=29.93, samples=106 iops : min= 1, max= 47, avg=27.17, stdev= 7.48, samples=106 write: IOPS=29, BW=119KiB/s (122kB/s)(6348KiB/53485msec); 0 zone resets clat (usec): min=603, max=654271, avg=15422.54, stdev=21022.00 lat (usec): min=603, max=654272, avg=15423.46, stdev=21021.99 clat percentiles (usec): | 1.00th=[ 914], 5.00th=[ 1237], 10.00th=[ 1860], 20.00th=[ 2737], | 30.00th=[ 3982], 40.00th=[ 8848], 50.00th=[ 11863], 60.00th=[ 15270], | 70.00th=[ 19006], 80.00th=[ 25297], 90.00th=[ 33817], 95.00th=[ 41157], | 99.00th=[ 57934], 99.50th=[ 66847], 99.90th=[115868], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 55, max= 272, per=25.31%, avg=118.94, stdev=34.78, samples=105 iops : min= 13, max= 68, avg=29.29, stdev= 8.74, samples=105 lat (usec) : 100=0.07%, 250=0.75%, 500=0.85%, 750=0.29%, 1000=1.01% lat (msec) : 2=4.52%, 4=9.90%, 10=13.28%, 20=35.71%, 50=31.51% lat (msec) : 100=1.99%, 250=0.10%, 750=0.03% cpu : usr=0.11%, sys=15.96%, ctx=7612, 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=186242: Thu Jan 1 22:44:57 2026 read: IOPS=28, BW=115KiB/s (118kB/s)(6028KiB/52471msec) clat (usec): min=98, max=82643, avg=18692.13, stdev=10796.68 lat (usec): min=98, max=82643, avg=18693.29, stdev=10796.80 clat percentiles (usec): | 1.00th=[ 241], 5.00th=[ 6194], 10.00th=[ 8160], 20.00th=[10552], | 30.00th=[12518], 40.00th=[14484], 50.00th=[16581], 60.00th=[19006], | 70.00th=[22152], 80.00th=[25822], 90.00th=[31589], 95.00th=[37487], | 99.00th=[57410], 99.50th=[64226], 99.90th=[80217], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 56, max= 215, per=26.02%, avg=116.59, stdev=31.03, samples=102 iops : min= 14, max= 53, avg=28.69, stdev= 7.80, samples=102 write: IOPS=29, BW=119KiB/s (122kB/s)(6260KiB/52471msec); 0 zone resets clat (usec): min=602, max=729777, avg=15374.78, stdev=22564.41 lat (usec): min=603, max=729778, avg=15375.76, stdev=22564.41 clat percentiles (usec): | 1.00th=[ 889], 5.00th=[ 1352], 10.00th=[ 1893], 20.00th=[ 2802], | 30.00th=[ 4490], 40.00th=[ 8291], 50.00th=[ 11731], 60.00th=[ 15401], | 70.00th=[ 19268], 80.00th=[ 24773], 90.00th=[ 33162], 95.00th=[ 41157], | 99.00th=[ 56886], 99.50th=[ 70779], 99.90th=[107480], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 24, max= 200, per=25.51%, avg=119.87, stdev=31.74, samples=103 iops : min= 6, max= 50, avg=29.51, stdev= 7.92, samples=103 lat (usec) : 100=0.03%, 250=0.52%, 500=1.07%, 750=0.16%, 1000=0.88% lat (msec) : 2=5.05%, 4=8.37%, 10=14.94%, 20=36.26%, 50=30.66% lat (msec) : 100=1.99%, 250=0.03%, 750=0.03% cpu : usr=0.10%, sys=16.38%, ctx=7503, 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=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=186245: Thu Jan 1 22:44:57 2026 read: IOPS=28, BW=114KiB/s (117kB/s)(6052KiB/52881msec) clat (usec): min=72, max=114145, avg=18752.65, stdev=11268.28 lat (usec): min=73, max=114146, avg=18753.50, stdev=11268.33 clat percentiles (usec): | 1.00th=[ 212], 5.00th=[ 6063], 10.00th=[ 8356], 20.00th=[ 10421], | 30.00th=[ 11994], 40.00th=[ 14091], 50.00th=[ 16450], 60.00th=[ 19530], | 70.00th=[ 22414], 80.00th=[ 26346], 90.00th=[ 32113], 95.00th=[ 38011], | 99.00th=[ 57934], 99.50th=[ 68682], 99.90th=[ 93848], 99.95th=[113771], | 99.99th=[113771] bw ( KiB/s): min= 32, max= 192, per=25.67%, avg=115.01, stdev=27.16, samples=104 iops : min= 8, max= 48, avg=28.30, stdev= 6.85, samples=104 write: IOPS=29, BW=118KiB/s (121kB/s)(6236KiB/52881msec); 0 zone resets clat (usec): min=547, max=717757, avg=15567.64, stdev=22376.32 lat (usec): min=548, max=717759, avg=15569.70, stdev=22375.91 clat percentiles (usec): | 1.00th=[ 816], 5.00th=[ 1188], 10.00th=[ 1811], 20.00th=[ 2573], | 30.00th=[ 4015], 40.00th=[ 8848], 50.00th=[ 12125], 60.00th=[ 15270], | 70.00th=[ 19530], 80.00th=[ 26084], 90.00th=[ 34341], 95.00th=[ 41157], | 99.00th=[ 56886], 99.50th=[ 68682], 99.90th=[ 81265], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 47, max= 207, per=25.21%, avg=118.48, stdev=31.99, samples=104 iops : min= 11, max= 51, avg=29.16, stdev= 7.96, samples=104 lat (usec) : 100=0.03%, 250=0.62%, 500=1.17%, 750=0.39%, 1000=0.98% lat (msec) : 2=5.14%, 4=8.72%, 10=13.80%, 20=35.29%, 50=31.80% lat (msec) : 100=1.99%, 250=0.03%, 750=0.03% cpu : usr=0.10%, sys=16.04%, ctx=7694, 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=449KiB/s (460kB/s), 111KiB/s-115KiB/s (114kB/s-118kB/s), io=23.4MiB (24.6MB), run=52471-53485msec WRITE: bw=470KiB/s (481kB/s), 118KiB/s-119KiB/s (121kB/s-122kB/s), io=24.6MiB (25.7MB), run=52471-53485msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186239: Thu Jan 1 22:45:14 2026 read: IOPS=21, BW=84.9KiB/s (86.0kB/s)(5992KiB/70545msec) clat (msec): min=3, max=675, avg=19.27, stdev=22.52 lat (msec): min=3, max=675, avg=19.28, stdev=22.52 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 21], 80.00th=[ 28], 90.00th=[ 39], 95.00th=[ 50], | 99.00th=[ 74], 99.50th=[ 86], 99.90th=[ 122], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 23, max= 231, per=25.01%, avg=85.03, stdev=43.77, samples=139 iops : min= 5, max= 57, avg=20.82, stdev=11.02, samples=139 write: IOPS=22, BW=89.2KiB/s (91.4kB/s)(6296KiB/70545msec); 0 zone resets clat (msec): min=5, max=155, avg=26.33, stdev=16.28 lat (msec): min=5, max=155, avg=26.33, stdev=16.28 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 38], 90.00th=[ 48], 95.00th=[ 57], | 99.00th=[ 78], 99.50th=[ 95], 99.90th=[ 142], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 16, max= 208, per=25.13%, avg=89.46, stdev=42.77, samples=139 iops : min= 4, max= 52, avg=21.93, stdev=10.77, samples=139 lat (msec) : 4=0.36%, 10=17.90%, 20=37.86%, 50=37.08%, 100=6.54% lat (msec) : 250=0.23%, 750=0.03% cpu : usr=0.06%, sys=6.50%, ctx=5221, 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=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=186241: Thu Jan 1 22:45:14 2026 read: IOPS=21, BW=84.1KiB/s (86.2kB/s)(5940KiB/70600msec) clat (msec): min=3, max=722, avg=19.51, stdev=23.81 lat (msec): min=3, max=722, avg=19.51, stdev=23.81 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 21], 80.00th=[ 27], 90.00th=[ 40], 95.00th=[ 50], | 99.00th=[ 83], 99.50th=[ 94], 99.90th=[ 122], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8, max= 232, per=24.80%, avg=84.32, stdev=45.21, samples=139 iops : min= 2, max= 58, avg=20.65, stdev=11.39, samples=139 write: IOPS=22, BW=89.9KiB/s (92.1kB/s)(6348KiB/70600msec); 0 zone resets clat (msec): min=5, max=148, avg=26.09, stdev=15.66 lat (msec): min=5, max=148, avg=26.09, stdev=15.66 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 37], 90.00th=[ 47], 95.00th=[ 55], | 99.00th=[ 85], 99.50th=[ 99], 99.90th=[ 121], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 16, max= 216, per=25.26%, avg=89.91, stdev=40.68, samples=139 iops : min= 4, max= 54, avg=22.04, stdev=10.26, samples=139 lat (msec) : 4=0.29%, 10=17.15%, 20=39.03%, 50=37.30%, 100=5.86% lat (msec) : 250=0.33%, 750=0.03% cpu : usr=0.10%, sys=6.37%, ctx=5120, 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=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=186243: Thu Jan 1 22:45:14 2026 read: IOPS=21, BW=85.4KiB/s (87.5kB/s)(6028KiB/70582msec) clat (msec): min=3, max=113, avg=18.56, stdev=14.03 lat (msec): min=3, max=113, avg=18.57, stdev=14.03 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 21], 80.00th=[ 26], 90.00th=[ 37], 95.00th=[ 50], | 99.00th=[ 70], 99.50th=[ 73], 99.90th=[ 107], 99.95th=[ 114], | 99.99th=[ 114] bw ( KiB/s): min= 16, max= 208, per=25.19%, avg=85.65, stdev=42.03, samples=139 iops : min= 4, max= 52, avg=20.98, stdev=10.60, samples=139 write: IOPS=22, BW=88.7KiB/s (90.8kB/s)(6260KiB/70582msec); 0 zone resets clat (msec): min=5, max=720, avg=27.07, stdev=24.21 lat (msec): min=5, max=720, avg=27.07, stdev=24.21 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 38], 90.00th=[ 50], 95.00th=[ 58], | 99.00th=[ 87], 99.50th=[ 111], 99.90th=[ 142], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 24, max= 216, per=24.95%, avg=88.83, stdev=41.71, samples=139 iops : min= 6, max= 54, avg=21.77, stdev=10.52, samples=139 lat (msec) : 4=0.29%, 10=16.89%, 20=39.88%, 50=35.87%, 100=6.67% lat (msec) : 250=0.36%, 750=0.03% cpu : usr=0.08%, sys=6.41%, ctx=5163, 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=186244: Thu Jan 1 22:45:14 2026 read: IOPS=21, BW=86.3KiB/s (88.4kB/s)(6052KiB/70102msec) clat (msec): min=3, max=114, avg=18.88, stdev=14.63 lat (msec): min=3, max=114, avg=18.88, stdev=14.63 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 17], | 70.00th=[ 21], 80.00th=[ 27], 90.00th=[ 39], 95.00th=[ 51], | 99.00th=[ 74], 99.50th=[ 87], 99.90th=[ 106], 99.95th=[ 115], | 99.99th=[ 115] bw ( KiB/s): min= 7, max= 224, per=25.62%, avg=87.09, stdev=42.30, samples=137 iops : min= 1, max= 56, avg=21.33, stdev=10.69, samples=137 write: IOPS=22, BW=88.0KiB/s (91.1kB/s)(6236KiB/70102msec); 0 zone resets clat (msec): min=6, max=753, avg=26.49, stdev=24.44 lat (msec): min=6, max=753, avg=26.49, stdev=24.44 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 37], 90.00th=[ 47], 95.00th=[ 55], | 99.00th=[ 89], 99.50th=[ 96], 99.90th=[ 155], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 16, max= 216, per=25.02%, avg=89.07, stdev=41.23, samples=138 iops : min= 4, max= 54, avg=21.83, stdev=10.38, samples=138 lat (msec) : 4=0.29%, 10=17.06%, 20=39.49%, 50=36.39%, 100=6.41% lat (msec) : 250=0.33%, 1000=0.03% cpu : usr=0.08%, sys=6.45%, ctx=5198, majf=0, minf=17 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=340KiB/s (348kB/s), 84.1KiB/s-86.3KiB/s (86.2kB/s-88.4kB/s), io=23.4MiB (24.6MB), run=70102-70600msec WRITE: bw=356KiB/s (365kB/s), 88.7KiB/s-89.9KiB/s (90.8kB/s-92.1kB/s), io=24.6MiB (25.7MB), run=70102-70600msec 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=186278: Thu Jan 1 22:45:33 2026 read: IOPS=25, BW=411KiB/s (421kB/s)(5920KiB/14387msec) clat (usec): min=84, max=76393, avg=19672.15, stdev=11376.19 lat (usec): min=84, max=76394, avg=19672.87, stdev=11376.17 clat percentiles (usec): | 1.00th=[ 180], 5.00th=[ 420], 10.00th=[ 9110], 20.00th=[11207], | 30.00th=[13566], 40.00th=[16319], 50.00th=[18744], 60.00th=[20841], | 70.00th=[23200], 80.00th=[26084], 90.00th=[32375], 95.00th=[40633], | 99.00th=[57934], 99.50th=[73925], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 253, max= 606, per=24.84%, avg=406.18, stdev=91.48, samples=28 iops : min= 15, max= 37, avg=24.68, stdev= 5.79, samples=28 write: IOPS=27, BW=443KiB/s (453kB/s)(6368KiB/14387msec); 0 zone resets clat (usec): min=847, max=80553, avg=17639.31, stdev=13361.65 lat (usec): min=848, max=80554, avg=17640.94, stdev=13361.69 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 2999], 10.00th=[ 3916], 20.00th=[ 5342], | 30.00th=[ 8717], 40.00th=[11863], 50.00th=[14877], 60.00th=[17171], | 70.00th=[21627], 80.00th=[27657], 90.00th=[35914], 95.00th=[44827], | 99.00th=[62653], 99.50th=[67634], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 254, max= 669, per=25.71%, avg=442.50, stdev=108.08, samples=28 iops : min= 15, max= 41, avg=26.96, stdev= 6.87, samples=28 lat (usec) : 100=0.13%, 250=0.65%, 500=2.34%, 750=0.13%, 1000=0.13% lat (msec) : 2=1.43%, 4=3.91%, 10=15.89%, 20=36.98%, 50=35.68% lat (msec) : 100=2.73% cpu : usr=0.15%, sys=21.97%, ctx=2526, majf=0, minf=17 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=186280: Thu Jan 1 22:45:33 2026 read: IOPS=24, BW=394KiB/s (404kB/s)(5744KiB/14564msec) clat (usec): min=98, max=71190, avg=20125.02, stdev=10993.92 lat (usec): min=99, max=71190, avg=20125.87, stdev=10993.91 clat percentiles (usec): | 1.00th=[ 182], 5.00th=[ 420], 10.00th=[ 9503], 20.00th=[12256], | 30.00th=[14484], 40.00th=[16057], 50.00th=[18744], 60.00th=[21103], | 70.00th=[23987], 80.00th=[28181], 90.00th=[32900], 95.00th=[38536], | 99.00th=[59507], 99.50th=[63701], 99.90th=[70779], 99.95th=[70779], | 99.99th=[70779] bw ( KiB/s): min= 174, max= 573, per=23.96%, avg=391.82, stdev=97.32, samples=28 iops : min= 10, max= 35, avg=23.79, stdev= 6.08, samples=28 write: IOPS=28, BW=449KiB/s (460kB/s)(6544KiB/14564msec); 0 zone resets clat (usec): min=1101, max=67606, avg=17732.58, stdev=12987.66 lat (usec): min=1103, max=67607, avg=17733.87, stdev=12987.66 clat percentiles (usec): | 1.00th=[ 2073], 5.00th=[ 3425], 10.00th=[ 4490], 20.00th=[ 6456], | 30.00th=[ 8848], 40.00th=[11600], 50.00th=[14877], 60.00th=[17957], | 70.00th=[20841], 80.00th=[26870], 90.00th=[36963], 95.00th=[44827], | 99.00th=[56886], 99.50th=[63701], 99.90th=[67634], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 255, max= 608, per=25.58%, avg=440.18, stdev=94.05, samples=28 iops : min= 15, max= 38, avg=26.82, stdev= 5.96, samples=28 lat (usec) : 100=0.13%, 250=0.65%, 500=1.95%, 750=0.13%, 1000=0.13% lat (msec) : 2=0.39%, 4=3.39%, 10=15.89%, 20=38.93%, 50=35.94% lat (msec) : 100=2.47% cpu : usr=0.10%, sys=22.43%, ctx=2514, majf=0, minf=17 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=186281: Thu Jan 1 22:45:33 2026 read: IOPS=26, BW=427KiB/s (438kB/s)(6256KiB/14642msec) clat (usec): min=106, max=66333, avg=20209.90, stdev=11476.80 lat (usec): min=106, max=66334, avg=20210.69, stdev=11476.81 clat percentiles (usec): | 1.00th=[ 157], 5.00th=[ 412], 10.00th=[ 8848], 20.00th=[11731], | 30.00th=[13435], 40.00th=[15926], 50.00th=[19006], 60.00th=[21365], | 70.00th=[24773], 80.00th=[27919], 90.00th=[33424], 95.00th=[39584], | 99.00th=[58983], 99.50th=[65799], 99.90th=[66323], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 286, max= 670, per=26.19%, avg=428.28, stdev=105.44, samples=29 iops : min= 17, max= 41, avg=26.10, stdev= 6.64, samples=29 write: IOPS=25, BW=412KiB/s (422kB/s)(6032KiB/14642msec); 0 zone resets clat (usec): min=761, max=74766, avg=17654.75, stdev=12529.39 lat (usec): min=763, max=74767, avg=17656.14, stdev=12529.45 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 2966], 10.00th=[ 4146], 20.00th=[ 5604], | 30.00th=[ 8455], 40.00th=[11863], 50.00th=[15270], 60.00th=[19268], | 70.00th=[23200], 80.00th=[27395], 90.00th=[36439], 95.00th=[41157], | 99.00th=[54264], 99.50th=[58983], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 223, max= 704, per=23.74%, avg=408.48, stdev=102.60, samples=29 iops : min= 13, max= 44, avg=24.86, stdev= 6.58, samples=29 lat (usec) : 250=0.78%, 500=2.47%, 750=0.13%, 1000=0.13% lat (msec) : 2=1.17%, 4=3.26%, 10=15.76%, 20=34.24%, 50=39.97% lat (msec) : 100=2.08% cpu : usr=0.08%, sys=21.15%, ctx=2521, 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=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=186282: Thu Jan 1 22:45:33 2026 read: IOPS=26, BW=421KiB/s (431kB/s)(6032KiB/14344msec) clat (usec): min=105, max=66532, avg=20083.18, stdev=11242.70 lat (usec): min=105, max=66533, avg=20083.95, stdev=11242.66 clat percentiles (usec): | 1.00th=[ 147], 5.00th=[ 388], 10.00th=[ 8455], 20.00th=[11338], | 30.00th=[13566], 40.00th=[16057], 50.00th=[18744], 60.00th=[21365], | 70.00th=[24511], 80.00th=[28443], 90.00th=[34866], 95.00th=[41157], | 99.00th=[56361], 99.50th=[56886], 99.90th=[66323], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 223, max= 576, per=25.48%, avg=416.54, stdev=92.13, samples=28 iops : min= 13, max= 36, avg=25.36, stdev= 5.86, samples=28 write: IOPS=27, BW=436KiB/s (447kB/s)(6256KiB/14344msec); 0 zone resets clat (usec): min=1168, max=63424, avg=17224.55, stdev=12674.95 lat (usec): min=1169, max=63425, avg=17226.27, stdev=12675.58 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 3228], 10.00th=[ 4015], 20.00th=[ 5538], | 30.00th=[ 8094], 40.00th=[11731], 50.00th=[14746], 60.00th=[17957], | 70.00th=[21103], 80.00th=[26608], 90.00th=[35914], 95.00th=[43254], | 99.00th=[58983], 99.50th=[62653], 99.90th=[63177], 99.95th=[63177], | 99.99th=[63177] bw ( KiB/s): min= 192, max= 670, per=25.17%, avg=433.11, stdev=118.09, samples=28 iops : min= 12, max= 41, avg=26.39, stdev= 7.35, samples=28 lat (usec) : 250=0.78%, 500=1.95%, 750=0.26%, 1000=0.39% lat (msec) : 2=1.30%, 4=3.78%, 10=15.76%, 20=36.72%, 50=37.24% lat (msec) : 100=1.82% cpu : usr=0.11%, sys=21.90%, ctx=2523, 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=1636KiB/s (1675kB/s), 394KiB/s-427KiB/s (404kB/s-438kB/s), io=23.4MiB (24.5MB), run=14344-14642msec WRITE: bw=1721KiB/s (1762kB/s), 412KiB/s-449KiB/s (422kB/s-460kB/s), io=24.6MiB (25.8MB), run=14344-14642msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186275: Thu Jan 1 22:45:35 2026 read: IOPS=21, BW=350KiB/s (359kB/s)(5920KiB/16900msec) clat (usec): min=3400, max=91908, avg=18574.87, stdev=16576.41 lat (usec): min=3400, max=91910, avg=18576.21, stdev=16576.23 clat percentiles (usec): | 1.00th=[ 3851], 5.00th=[ 4948], 10.00th=[ 5604], 20.00th=[ 7046], | 30.00th=[ 8455], 40.00th=[ 9896], 50.00th=[12387], 60.00th=[15270], | 70.00th=[19006], 80.00th=[25297], 90.00th=[42730], 95.00th=[51119], | 99.00th=[80217], 99.50th=[91751], 99.90th=[91751], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 127, max= 1024, per=23.98%, avg=338.36, stdev=213.88, samples=33 iops : min= 7, max= 64, avg=20.64, stdev=13.45, samples=33 write: IOPS=23, BW=377KiB/s (386kB/s)(6368KiB/16900msec); 0 zone resets clat (usec): min=5779, max=92020, avg=24900.71, stdev=16043.34 lat (usec): min=5781, max=92021, avg=24910.52, stdev=16052.41 clat percentiles (usec): | 1.00th=[ 6194], 5.00th=[ 8160], 10.00th=[ 9241], 20.00th=[11600], | 30.00th=[13304], 40.00th=[15926], 50.00th=[19268], 60.00th=[25297], | 70.00th=[31065], 80.00th=[38011], 90.00th=[47449], 95.00th=[57934], | 99.00th=[78119], 99.50th=[89654], 99.90th=[91751], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 191, max= 960, per=24.89%, avg=369.58, stdev=201.64, samples=33 iops : min= 11, max= 60, avg=22.58, stdev=12.64, samples=33 lat (msec) : 4=0.65%, 10=25.91%, 20=34.11%, 50=31.90%, 100=7.42% cpu : usr=0.11%, sys=9.04%, ctx=1396, 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=186276: Thu Jan 1 22:45:35 2026 read: IOPS=21, BW=339KiB/s (347kB/s)(5744KiB/16945msec) clat (usec): min=3403, max=78731, avg=18675.08, stdev=15153.60 lat (usec): min=3404, max=78732, avg=18676.01, stdev=15153.54 clat percentiles (usec): | 1.00th=[ 4293], 5.00th=[ 5538], 10.00th=[ 6259], 20.00th=[ 7767], | 30.00th=[ 9110], 40.00th=[10683], 50.00th=[12911], 60.00th=[15008], | 70.00th=[20055], 80.00th=[27919], 90.00th=[43254], 95.00th=[53216], | 99.00th=[67634], 99.50th=[73925], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 128, max= 832, per=23.59%, avg=332.91, stdev=171.82, samples=33 iops : min= 8, max= 52, avg=20.27, stdev=10.83, samples=33 write: IOPS=24, BW=386KiB/s (395kB/s)(6544KiB/16945msec); 0 zone resets clat (usec): min=5080, max=95793, avg=24852.84, stdev=16352.17 lat (usec): min=5082, max=95796, avg=24854.84, stdev=16352.31 clat percentiles (usec): | 1.00th=[ 6980], 5.00th=[ 8455], 10.00th=[ 9372], 20.00th=[11600], | 30.00th=[13566], 40.00th=[16057], 50.00th=[19006], 60.00th=[24249], | 70.00th=[30540], 80.00th=[37487], 90.00th=[48497], 95.00th=[56361], | 99.00th=[81265], 99.50th=[84411], 99.90th=[95945], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 159, max= 988, per=25.11%, avg=372.94, stdev=199.64, samples=33 iops : min= 9, max= 61, avg=22.79, stdev=12.49, samples=33 lat (msec) : 4=0.26%, 10=23.70%, 20=36.07%, 50=32.81%, 100=7.16% cpu : usr=0.12%, sys=9.19%, ctx=1333, 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=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=186277: Thu Jan 1 22:45:35 2026 read: IOPS=23, BW=369KiB/s (378kB/s)(6256KiB/16968msec) clat (usec): min=3323, max=97835, avg=18885.31, stdev=15996.27 lat (usec): min=3324, max=97836, avg=18886.34, stdev=15996.31 clat percentiles (usec): | 1.00th=[ 3687], 5.00th=[ 4948], 10.00th=[ 5342], 20.00th=[ 6849], | 30.00th=[ 8717], 40.00th=[10814], 50.00th=[13042], 60.00th=[15926], | 70.00th=[21365], 80.00th=[27919], 90.00th=[40109], 95.00th=[51643], | 99.00th=[81265], 99.50th=[88605], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 159, max= 1280, per=25.66%, avg=362.00, stdev=239.33, samples=33 iops : min= 9, max= 80, avg=22.09, stdev=15.04, samples=33 write: IOPS=22, BW=355KiB/s (364kB/s)(6032KiB/16968msec); 0 zone resets clat (usec): min=4926, max=88505, avg=25145.89, stdev=15866.74 lat (usec): min=4928, max=88508, avg=25148.22, stdev=15867.17 clat percentiles (usec): | 1.00th=[ 5538], 5.00th=[ 7635], 10.00th=[ 9241], 20.00th=[11731], | 30.00th=[13960], 40.00th=[16581], 50.00th=[20579], 60.00th=[25560], | 70.00th=[31327], 80.00th=[38011], 90.00th=[47449], 95.00th=[58459], | 99.00th=[78119], 99.50th=[83362], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 95, max= 894, per=22.78%, avg=338.30, stdev=186.45, samples=33 iops : min= 5, max= 55, avg=20.64, stdev=11.66, samples=33 lat (msec) : 4=0.65%, 10=23.18%, 20=34.24%, 50=34.90%, 100=7.03% cpu : usr=0.11%, sys=9.01%, ctx=1345, 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=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=186279: Thu Jan 1 22:45:35 2026 read: IOPS=22, BW=360KiB/s (369kB/s)(6032KiB/16751msec) clat (usec): min=3386, max=88715, avg=18030.68, stdev=14208.84 lat (usec): min=3397, max=88716, avg=18031.48, stdev=14208.78 clat percentiles (usec): | 1.00th=[ 4490], 5.00th=[ 5407], 10.00th=[ 6194], 20.00th=[ 7832], | 30.00th=[ 8979], 40.00th=[10552], 50.00th=[13173], 60.00th=[16909], | 70.00th=[20317], 80.00th=[25822], 90.00th=[36963], 95.00th=[49546], | 99.00th=[73925], 99.50th=[86508], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 159, max= 926, per=25.22%, avg=355.85, stdev=194.28, samples=33 iops : min= 9, max= 57, avg=21.73, stdev=12.18, samples=33 write: IOPS=23, BW=373KiB/s (382kB/s)(6256KiB/16751msec); 0 zone resets clat (usec): min=4836, max=97909, avg=25381.94, stdev=16524.71 lat (usec): min=4838, max=97912, avg=25383.61, stdev=16524.74 clat percentiles (usec): | 1.00th=[ 6915], 5.00th=[ 8717], 10.00th=[10159], 20.00th=[12256], | 30.00th=[13960], 40.00th=[17171], 50.00th=[19268], 60.00th=[24511], | 70.00th=[30278], 80.00th=[36963], 90.00th=[49021], 95.00th=[60031], | 99.00th=[82314], 99.50th=[89654], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 192, max= 892, per=24.85%, avg=369.03, stdev=170.98, samples=33 iops : min= 12, max= 55, avg=22.55, stdev=10.73, samples=33 lat (msec) : 4=0.26%, 10=21.61%, 20=38.80%, 50=32.42%, 100=6.90% cpu : usr=0.08%, sys=9.33%, ctx=1348, 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=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=1412KiB/s (1445kB/s), 339KiB/s-369KiB/s (347kB/s-378kB/s), io=23.4MiB (24.5MB), run=16751-16968msec WRITE: bw=1485KiB/s (1521kB/s), 355KiB/s-386KiB/s (364kB/s-395kB/s), io=24.6MiB (25.8MB), run=16751-16968msec 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=186293: Thu Jan 1 22:45:44 2026 read: IOPS=2, BW=2309KiB/s (2365kB/s)(7168KiB/3104msec) clat (usec): min=782, max=1104.3k, avg=225051.78, stdev=393090.82 lat (usec): min=783, max=1104.3k, avg=225053.22, stdev=393091.30 clat percentiles (usec): | 1.00th=[ 783], 5.00th=[ 783], 10.00th=[ 783], | 20.00th=[ 898], 30.00th=[ 58459], 40.00th=[ 58459], | 50.00th=[ 101188], 60.00th=[ 137364], 70.00th=[ 137364], | 80.00th=[ 170918], 90.00th=[1098908], 95.00th=[1098908], | 99.00th=[1098908], 99.50th=[1098908], 99.90th=[1098908], | 99.95th=[1098908], 99.99th=[1098908] bw ( KiB/s): min= 2048, max= 6144, per=69.19%, avg=4096.00, stdev=2048.00, samples=3 iops : min= 2, max= 6, avg= 4.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1649KiB/s (1689kB/s)(5120KiB/3104msec); 0 zone resets clat (msec): min=142, max=652, avg=297.49, stdev=204.03 lat (msec): min=142, max=652, avg=297.55, stdev=204.03 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 247], 60.00th=[ 247], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 2048, max= 4096, per=32.94%, avg=2730.67, stdev=1182.41, samples=3 iops : min= 2, max= 4, avg= 2.67, stdev= 1.15, samples=3 lat (usec) : 1000=16.67% lat (msec) : 100=8.33%, 250=50.00%, 500=8.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=36.93%, ctx=1241, 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=186295: Thu Jan 1 22:45:44 2026 read: IOPS=0, BW=592KiB/s (606kB/s)(2048KiB/3459msec) clat (msec): min=113, max=219, avg=166.28, stdev=75.00 lat (msec): min=113, max=219, avg=166.28, stdev=75.00 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 113], 60.00th=[ 220], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 220], 95.00th=[ 220], | 99.00th=[ 220], 99.50th=[ 220], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 1954, max= 1973, per=33.17%, avg=1963.50, stdev=13.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2960KiB/s (3031kB/s)(10.0MiB/3459msec); 0 zone resets clat (msec): min=81, max=1243, avg=305.18, stdev=345.77 lat (msec): min=81, max=1243, avg=305.28, stdev=345.76 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 105], | 30.00th=[ 114], 40.00th=[ 142], 50.00th=[ 178], 60.00th=[ 205], | 70.00th=[ 234], 80.00th=[ 355], 90.00th=[ 397], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 2048, max= 4096, per=42.67%, avg=3537.00, stdev=996.61, samples=4 iops : min= 2, max= 4, avg= 3.25, stdev= 0.96, samples=4 lat (msec) : 100=8.33%, 250=66.67%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=36.41%, ctx=415, 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=186296: Thu Jan 1 22:45:44 2026 read: IOPS=2, BW=2369KiB/s (2426kB/s)(6144KiB/2593msec) clat (usec): min=591, max=170942, avg=57970.87, stdev=79697.53 lat (usec): min=592, max=170942, avg=57971.82, stdev=79697.29 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 750], 50.00th=[ 750], 60.00th=[ 26608], | 70.00th=[147850], 80.00th=[147850], 90.00th=[170918], 95.00th=[170918], | 99.00th=[170918], 99.50th=[170918], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 3908, max= 6144, per=84.90%, avg=5026.00, stdev=1581.09, samples=2 iops : min= 3, max= 6, avg= 4.50, stdev= 2.12, samples=2 write: IOPS=2, BW=2369KiB/s (2426kB/s)(6144KiB/2593msec); 0 zone resets clat (msec): min=57, max=1421, avg=337.14, stdev=534.03 lat (msec): min=57, max=1421, avg=337.21, stdev=534.04 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 83], | 30.00th=[ 83], 40.00th=[ 93], 50.00th=[ 93], 60.00th=[ 159], | 70.00th=[ 211], 80.00th=[ 211], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 1954, max= 4096, per=39.92%, avg=3309.33, stdev=1178.80, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 lat (usec) : 750=25.00% lat (msec) : 50=8.33%, 100=25.00%, 250=33.33%, 2000=8.33% cpu : usr=0.00%, sys=32.10%, ctx=285, 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=186297: Thu Jan 1 22:45:44 2026 read: IOPS=1, BW=1908KiB/s (1954kB/s)(5120KiB/2683msec) clat (usec): min=444, max=40963, avg=8709.55, stdev=18030.86 lat (usec): min=445, max=40963, avg=8710.22, stdev=18030.67 clat percentiles (usec): | 1.00th=[ 445], 5.00th=[ 445], 10.00th=[ 445], 20.00th=[ 445], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 742], 80.00th=[ 742], 90.00th=[41157], 95.00th=[41157], | 99.00th=[41157], 99.50th=[41157], 99.90th=[41157], 99.95th=[41157], | 99.99th=[41157] bw ( KiB/s): min= 7816, max= 7816, per=100.00%, avg=7816.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2672KiB/s (2736kB/s)(7168KiB/2683msec); 0 zone resets clat (msec): min=129, max=1337, avg=358.82, stdev=434.29 lat (msec): min=129, max=1337, avg=358.88, stdev=434.28 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 153], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 211], 60.00th=[ 213], | 70.00th=[ 213], 80.00th=[ 279], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 1973, max= 5862, per=47.98%, avg=3977.00, stdev=1947.23, samples=3 iops : min= 1, max= 5, avg= 3.33, stdev= 2.08, samples=3 lat (usec) : 500=8.33%, 750=25.00% lat (msec) : 50=8.33%, 250=41.67%, 500=8.33%, 2000=8.33% cpu : usr=0.00%, sys=31.62%, ctx=138, 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=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=5921KiB/s (6063kB/s), 592KiB/s-2369KiB/s (606kB/s-2426kB/s), io=20.0MiB (20.0MB), run=2593-3459msec WRITE: bw=8289KiB/s (8488kB/s), 1649KiB/s-2960KiB/s (1689kB/s-3031kB/s), io=28.0MiB (29.4MB), run=2593-3459msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186290: Thu Jan 1 22:45:44 2026 read: IOPS=2, BW=2294KiB/s (2350kB/s)(7168KiB/3124msec) clat (msec): min=49, max=1139, avg=236.79, stdev=399.80 lat (msec): min=49, max=1139, avg=236.79, stdev=399.80 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 50], 10.00th=[ 50], 20.00th=[ 59], | 30.00th=[ 61], 40.00th=[ 61], 50.00th=[ 80], 60.00th=[ 107], | 70.00th=[ 107], 80.00th=[ 163], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1899, max= 8192, per=74.21%, avg=4035.33, stdev=3600.25, samples=3 iops : min= 1, max= 8, avg= 3.33, stdev= 4.04, samples=3 write: IOPS=1, BW=1639KiB/s (1678kB/s)(5120KiB/3124msec); 0 zone resets clat (msec): min=59, max=580, avg=290.34, stdev=200.45 lat (msec): min=59, max=580, avg=290.42, stdev=200.44 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 61], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 2035, max= 4031, per=33.37%, avg=2540.50, stdev=993.69, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (msec) : 50=8.33%, 100=33.33%, 250=25.00%, 500=16.67%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=11.02%, ctx=102, 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=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=186291: Thu Jan 1 22:45:44 2026 read: IOPS=0, BW=562KiB/s (576kB/s)(2048KiB/3644msec) clat (msec): min=98, max=146, avg=122.65, stdev=33.91 lat (msec): min=98, max=146, avg=122.65, stdev=33.91 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 100], | 30.00th=[ 100], 40.00th=[ 100], 50.00th=[ 100], 60.00th=[ 146], | 70.00th=[ 146], 80.00th=[ 146], 90.00th=[ 146], 95.00th=[ 146], | 99.00th=[ 146], 99.50th=[ 146], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 1950, max= 2048, per=36.76%, avg=1999.00, stdev=69.30, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2810KiB/s (2878kB/s)(10.0MiB/3644msec); 0 zone resets clat (msec): min=55, max=1406, avg=328.71, stdev=416.00 lat (msec): min=55, max=1406, avg=328.80, stdev=416.02 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 57], | 30.00th=[ 72], 40.00th=[ 92], 50.00th=[ 142], 60.00th=[ 253], | 70.00th=[ 279], 80.00th=[ 321], 90.00th=[ 617], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 2048, max= 6144, per=53.51%, avg=4073.50, stdev=1672.47, samples=4 iops : min= 2, max= 6, avg= 3.50, stdev= 1.73, samples=4 lat (msec) : 100=41.67%, 250=16.67%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.03%, sys=17.24%, ctx=133, 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=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=186292: Thu Jan 1 22:45:44 2026 read: IOPS=1, BW=1793KiB/s (1836kB/s)(6144KiB/3427msec) clat (msec): min=46, max=458, avg=199.68, stdev=150.18 lat (msec): min=46, max=458, avg=199.68, stdev=150.18 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 47], 10.00th=[ 47], 20.00th=[ 86], | 30.00th=[ 86], 40.00th=[ 128], 50.00th=[ 128], 60.00th=[ 222], | 70.00th=[ 259], 80.00th=[ 259], 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= 6047, per=62.09%, avg=3376.67, stdev=2312.59, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 write: IOPS=1, BW=1793KiB/s (1836kB/s)(6144KiB/3427msec); 0 zone resets clat (msec): min=53, max=1270, avg=367.91, stdev=458.74 lat (msec): min=53, max=1270, avg=367.99, stdev=458.74 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 54], 10.00th=[ 54], 20.00th=[ 61], | 30.00th=[ 61], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 296], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 2015, max= 3900, per=32.83%, avg=2499.50, stdev=933.77, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=25.00%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=14.33%, ctx=115, 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=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=186294: Thu Jan 1 22:45:44 2026 read: IOPS=1, BW=1360KiB/s (1392kB/s)(5120KiB/3766msec) clat (msec): min=25, max=379, avg=142.06, stdev=142.71 lat (msec): min=25, max=379, avg=142.06, stdev=142.71 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 26], 10.00th=[ 26], 20.00th=[ 26], | 30.00th=[ 64], 40.00th=[ 64], 50.00th=[ 75], 60.00th=[ 75], | 70.00th=[ 167], 80.00th=[ 167], 90.00th=[ 380], 95.00th=[ 380], | 99.00th=[ 380], 99.50th=[ 380], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 2015, max= 4096, per=56.19%, avg=3055.50, stdev=1471.49, samples=2 iops : min= 1, max= 4, avg= 2.50, stdev= 2.12, samples=2 write: IOPS=1, BW=1903KiB/s (1949kB/s)(7168KiB/3766msec); 0 zone resets clat (msec): min=30, max=1921, avg=431.15, stdev=681.63 lat (msec): min=30, max=1921, avg=431.23, stdev=681.63 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 31], 10.00th=[ 31], 20.00th=[ 50], | 30.00th=[ 62], 40.00th=[ 62], 50.00th=[ 84], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 468], 90.00th=[ 1921], 95.00th=[ 1921], | 99.00th=[ 1921], 99.50th=[ 1921], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 1921, max= 4071, per=35.06%, avg=2669.00, stdev=1215.08, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 50=25.00%, 100=33.33%, 250=8.33%, 500=25.00%, 2000=8.33% cpu : usr=0.03%, sys=13.09%, ctx=118, 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=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=5438KiB/s (5569kB/s), 562KiB/s-2294KiB/s (576kB/s-2350kB/s), io=20.0MiB (20.0MB), run=3124-3766msec WRITE: bw=7613KiB/s (7796kB/s), 1639KiB/s-2810KiB/s (1678kB/s-2878kB/s), io=28.0MiB (29.4MB), run=3124-3766msec 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=186302: Thu Jan 1 22:45:52 2026 read: IOPS=1, BW=6434KiB/s (6588kB/s)(12.0MiB/1910msec) clat (msec): min=449, max=776, avg=627.36, stdev=165.52 lat (msec): min=449, max=776, avg=627.36, stdev=165.52 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 8159, max= 8159, per=95.12%, avg=8159.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=10.69%, ctx=63, 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=186303: Thu Jan 1 22:45:52 2026 read: IOPS=0, BW=2288KiB/s (2343kB/s)(4096KiB/1790msec) clat (nsec): min=527762k, max=527762k, avg=527761607.00, stdev= 0.00 lat (nsec): min=527764k, max=527764k, avg=527764195.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 527], 10.00th=[ 527], 20.00th=[ 527], | 30.00th=[ 527], 40.00th=[ 527], 50.00th=[ 527], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7501, max= 7501, per=87.44%, avg=7501.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4577KiB/s (4686kB/s)(8192KiB/1790msec); 0 zone resets clat (msec): min=543, max=704, avg=624.00, stdev=113.66 lat (msec): min=543, max=704, avg=624.28, stdev=113.67 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 701], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 8159, max= 8159, per=44.57%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=9.95%, ctx=65, 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=186304: Thu Jan 1 22:45:52 2026 write: IOPS=1, BW=6896KiB/s (7061kB/s)(12.0MiB/1782msec); 0 zone resets clat (msec): min=173, max=942, avg=584.63, stdev=387.09 lat (msec): min=173, max=942, avg=584.92, stdev=387.16 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7314, max= 8159, per=42.26%, avg=7736.50, stdev=597.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=11.79%, ctx=58, 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=186305: Thu Jan 1 22:45:52 2026 write: IOPS=1, BW=7969KiB/s (8160kB/s)(12.0MiB/1542msec); 0 zone resets clat (msec): min=149, max=1172, avg=507.51, stdev=576.10 lat (msec): min=150, max=1172, avg=507.84, stdev=576.06 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 201], 50.00th=[ 201], 60.00th=[ 201], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min=15086, max=15086, per=82.41%, avg=15086.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=14.80%, ctx=68, 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=8578KiB/s (8784kB/s), 2288KiB/s-6434KiB/s (2343kB/s-6588kB/s), io=16.0MiB (16.8MB), run=1790-1910msec WRITE: bw=17.9MiB/s (18.7MB/s), 4577KiB/s-7969KiB/s (4686kB/s-8160kB/s), io=32.0MiB (33.6MB), run=1542-1790msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186308: Thu Jan 1 22:45:52 2026 read: IOPS=2, BW=8236KiB/s (8434kB/s)(12.0MiB/1492msec) clat (msec): min=446, max=531, avg=479.23, stdev=46.06 lat (msec): min=446, max=531, avg=479.24, stdev=46.06 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 8110, max= 8110, per=93.61%, 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=36.39%, ctx=1256, 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=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=186309: Thu Jan 1 22:45:52 2026 read: IOPS=0, BW=2166KiB/s (2218kB/s)(4096KiB/1891msec) clat (nsec): min=546925k, max=546925k, avg=546925168.00, stdev= 0.00 lat (nsec): min=546927k, max=546927k, avg=546927053.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 8110, max= 8110, per=93.61%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4332KiB/s (4436kB/s)(8192KiB/1891msec); 0 zone resets clat (msec): min=552, max=765, avg=659.13, stdev=150.29 lat (msec): min=553, max=765, avg=659.36, stdev=150.18 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 8192, max= 8192, per=47.28%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=15.08%, ctx=565, 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=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=186310: Thu Jan 1 22:45:52 2026 write: IOPS=1, BW=6621KiB/s (6780kB/s)(12.0MiB/1856msec); 0 zone resets clat (msec): min=137, max=1065, avg=596.82, stdev=464.13 lat (msec): min=137, max=1065, avg=597.21, stdev=464.25 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 8110, max= 8192, per=47.04%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=13.32%, ctx=45, 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=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=186311: Thu Jan 1 22:45:52 2026 write: IOPS=1, BW=7271KiB/s (7446kB/s)(12.0MiB/1690msec); 0 zone resets clat (msec): min=150, max=1059, avg=552.08, stdev=463.73 lat (msec): min=151, max=1059, avg=552.36, stdev=463.65 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7433, max= 8192, per=45.09%, avg=7812.50, stdev=536.69, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=12.26%, ctx=68, 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=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=8664KiB/s (8872kB/s), 2166KiB/s-8236KiB/s (2218kB/s-8434kB/s), io=16.0MiB (16.8MB), run=1492-1891msec WRITE: bw=16.9MiB/s (17.7MB/s), 4332KiB/s-7271KiB/s (4436kB/s-7446kB/s), io=32.0MiB (33.6MB), run=1690-1891msec