== sanity test 398b: DIO and buffer IO race ============== 09:14:04 (1787750044) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.98029 s, 6.3 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=145058: Wed Aug 26 09:16:54 2026 read: IOPS=10, BW=41.1KiB/s (42.1kB/s)(5992KiB/145821msec) clat (usec): min=25, max=551509, avg=47072.39, stdev=37148.33 lat (usec): min=25, max=551511, avg=47074.91, stdev=37148.65 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 58], 10.00th=[ 99], 20.00th=[ 20055], | 30.00th=[ 27132], 40.00th=[ 33162], 50.00th=[ 40109], 60.00th=[ 47973], | 70.00th=[ 59507], 80.00th=[ 73925], 90.00th=[ 91751], 95.00th=[109577], | 99.00th=[145753], 99.50th=[179307], 99.90th=[295699], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 6, max= 95, per=25.39%, avg=41.13, stdev=18.07, samples=283 iops : min= 1, max= 23, avg= 9.63, stdev= 4.55, samples=283 write: IOPS=10, BW=43.2KiB/s (44.2kB/s)(6296KiB/145821msec); 0 zone resets clat (usec): min=679, max=452540, avg=47712.76, stdev=49181.94 lat (usec): min=680, max=452542, avg=47721.47, stdev=49191.37 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1172], 10.00th=[ 1418], 20.00th=[ 4228], | 30.00th=[ 9634], 40.00th=[ 22152], 50.00th=[ 35914], 60.00th=[ 48497], | 70.00th=[ 64750], 80.00th=[ 83362], 90.00th=[114820], 95.00th=[139461], | 99.00th=[202376], 99.50th=[227541], 99.90th=[438305], 99.95th=[450888], | 99.99th=[450888] bw ( KiB/s): min= 7, max= 103, per=25.24%, avg=42.92, stdev=17.92, samples=285 iops : min= 1, max= 25, avg=10.08, stdev= 4.52, samples=285 lat (usec) : 50=0.98%, 100=3.91%, 250=0.46%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.36% lat (msec) : 2=6.22%, 4=3.52%, 10=5.70%, 20=8.11%, 50=31.97% lat (msec) : 100=27.86%, 250=10.48%, 500=0.23%, 750=0.03% cpu : usr=0.07%, sys=4.61%, ctx=6302, majf=0, minf=18 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=145059: Wed Aug 26 09:16:54 2026 read: IOPS=10, BW=40.6KiB/s (41.6kB/s)(5940KiB/146287msec) clat (usec): min=26, max=614488, avg=47434.54, stdev=38466.62 lat (usec): min=26, max=614489, avg=47436.30, stdev=38466.52 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 60], 10.00th=[ 116], 20.00th=[ 21627], | 30.00th=[ 27395], 40.00th=[ 33424], 50.00th=[ 40109], 60.00th=[ 47973], | 70.00th=[ 57934], 80.00th=[ 71828], 90.00th=[ 90702], 95.00th=[109577], | 99.00th=[156238], 99.50th=[198181], 99.90th=[333448], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 6, max= 111, per=25.08%, avg=40.63, stdev=18.58, samples=284 iops : min= 1, max= 27, avg= 9.50, stdev= 4.69, samples=284 write: IOPS=10, BW=43.4KiB/s (44.4kB/s)(6348KiB/146287msec); 0 zone resets clat (usec): min=723, max=595842, avg=47689.82, stdev=50715.36 lat (usec): min=724, max=595843, avg=47692.47, stdev=50714.51 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1205], 10.00th=[ 1434], 20.00th=[ 4621], | 30.00th=[ 10421], 40.00th=[ 22676], 50.00th=[ 36439], 60.00th=[ 48497], | 70.00th=[ 62129], 80.00th=[ 81265], 90.00th=[110625], 95.00th=[137364], | 99.00th=[212861], 99.50th=[278922], 99.90th=[337642], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 7, max= 120, per=25.33%, avg=43.06, stdev=18.59, samples=286 iops : min= 1, max= 30, avg=10.11, stdev= 4.71, samples=286 lat (usec) : 50=0.72%, 100=4.00%, 250=0.29%, 500=0.10%, 750=0.13% lat (usec) : 1000=0.16% lat (msec) : 2=6.48%, 4=3.03%, 10=5.92%, 20=7.16%, 50=33.40% lat (msec) : 100=28.35%, 250=9.77%, 500=0.42%, 750=0.07% cpu : usr=0.07%, sys=4.70%, ctx=6322, majf=0, minf=18 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=145060: Wed Aug 26 09:16:54 2026 read: IOPS=10, BW=41.3KiB/s (42.3kB/s)(6028KiB/145888msec) clat (usec): min=25, max=399820, avg=44657.15, stdev=35398.58 lat (usec): min=25, max=399821, avg=44659.19, stdev=35399.46 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 68], 20.00th=[ 19006], | 30.00th=[ 25560], 40.00th=[ 31589], 50.00th=[ 38011], 60.00th=[ 46400], | 70.00th=[ 56886], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[143655], 99.50th=[175113], 99.90th=[308282], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 7, max= 95, per=25.60%, avg=41.46, stdev=19.35, samples=282 iops : min= 1, max= 23, avg= 9.71, stdev= 4.88, samples=282 write: IOPS=10, BW=42.9KiB/s (43.9kB/s)(6260KiB/145888msec); 0 zone resets clat (usec): min=800, max=547647, avg=50104.03, stdev=52566.07 lat (usec): min=801, max=547649, avg=50109.38, stdev=52569.77 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1434], 20.00th=[ 4490], | 30.00th=[ 10290], 40.00th=[ 25560], 50.00th=[ 36963], 60.00th=[ 51119], | 70.00th=[ 65274], 80.00th=[ 87557], 90.00th=[120062], 95.00th=[141558], | 99.00th=[214959], 99.50th=[270533], 99.90th=[501220], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 6, max= 102, per=24.86%, avg=42.25, stdev=18.35, samples=287 iops : min= 1, max= 25, avg= 9.91, stdev= 4.63, samples=287 lat (usec) : 50=1.11%, 100=4.95%, 250=0.36%, 500=0.16%, 1000=0.20% lat (msec) : 2=6.64%, 4=2.96%, 10=5.63%, 20=7.32%, 50=32.32% lat (msec) : 100=26.86%, 250=11.13%, 500=0.29%, 750=0.07% cpu : usr=0.08%, sys=4.57%, ctx=6195, 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=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=145061: Wed Aug 26 09:16:54 2026 read: IOPS=10, BW=41.1KiB/s (42.0kB/s)(6052KiB/147423msec) clat (usec): min=32, max=578966, avg=47295.03, stdev=40000.33 lat (usec): min=32, max=578970, avg=47307.02, stdev=40000.03 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 74], 20.00th=[ 18744], | 30.00th=[ 26608], 40.00th=[ 33162], 50.00th=[ 40109], 60.00th=[ 49021], | 70.00th=[ 59507], 80.00th=[ 73925], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[170918], 99.50th=[198181], 99.90th=[476054], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 7, max= 143, per=25.58%, avg=41.43, stdev=19.03, samples=283 iops : min= 1, max= 35, avg= 9.71, stdev= 4.79, samples=283 write: IOPS=10, BW=42.3KiB/s (43.3kB/s)(6236KiB/147423msec); 0 zone resets clat (usec): min=775, max=613479, avg=48528.25, stdev=54194.23 lat (usec): min=776, max=613481, avg=48533.80, stdev=54192.52 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1450], 20.00th=[ 4293], | 30.00th=[ 9372], 40.00th=[ 21890], 50.00th=[ 34341], 60.00th=[ 47973], | 70.00th=[ 61604], 80.00th=[ 83362], 90.00th=[114820], 95.00th=[141558], | 99.00th=[231736], 99.50th=[299893], 99.90th=[467665], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 6, max= 104, per=24.76%, avg=42.09, stdev=19.52, samples=287 iops : min= 1, max= 26, avg= 9.86, stdev= 4.90, samples=287 lat (usec) : 50=0.85%, 100=4.92%, 250=0.33%, 500=0.20%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=6.22%, 4=3.45%, 10=6.22%, 20=7.45%, 50=31.15% lat (msec) : 100=28.09%, 250=10.22%, 500=0.52%, 750=0.07% cpu : usr=0.08%, sys=4.49%, ctx=6292, 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=163KiB/s (167kB/s), 40.6KiB/s-41.3KiB/s (41.6kB/s-42.3kB/s), io=23.4MiB (24.6MB), run=145821-147423msec WRITE: bw=171KiB/s (175kB/s), 42.3KiB/s-43.4KiB/s (43.3kB/s-44.4kB/s), io=24.6MiB (25.7MB), run=145821-147423msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145052: Wed Aug 26 09:19:08 2026 read: IOPS=5, BW=21.4KiB/s (21.9kB/s)(5992KiB/280366msec) clat (msec): min=4, max=1511, avg=36.53, stdev=55.34 lat (msec): min=4, max=1511, avg=36.54, stdev=55.34 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 50], 90.00th=[ 84], 95.00th=[ 114], | 99.00th=[ 194], 99.50th=[ 230], 99.90th=[ 523], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 7, max= 136, per=29.13%, avg=24.76, stdev=18.23, samples=467 iops : min= 1, max= 34, avg= 5.59, stdev= 4.62, samples=467 write: IOPS=5, BW=22.5KiB/s (22.0kB/s)(6296KiB/280366msec); 0 zone resets clat (msec): min=32, max=553, avg=143.07, stdev=85.29 lat (msec): min=32, max=553, avg=143.08, stdev=85.29 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 64], 20.00th=[ 77], | 30.00th=[ 89], 40.00th=[ 103], 50.00th=[ 117], 60.00th=[ 136], | 70.00th=[ 165], 80.00th=[ 201], 90.00th=[ 266], 95.00th=[ 317], | 99.00th=[ 443], 99.50th=[ 464], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 62, per=25.17%, avg=22.41, stdev=12.90, samples=540 iops : min= 1, max= 15, avg= 5.00, stdev= 3.32, samples=540 lat (msec) : 10=5.86%, 20=16.50%, 50=18.75%, 100=23.86%, 250=28.91% lat (msec) : 500=5.89%, 750=0.20%, 2000=0.03% cpu : usr=0.03%, sys=1.03%, ctx=5064, 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=145053: Wed Aug 26 09:19:08 2026 read: IOPS=5, BW=21.1KiB/s (21.6kB/s)(5940KiB/282011msec) clat (msec): min=3, max=1209, avg=37.31, stdev=52.26 lat (msec): min=3, max=1209, avg=37.31, stdev=52.26 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 36], 80.00th=[ 54], 90.00th=[ 86], 95.00th=[ 111], | 99.00th=[ 207], 99.50th=[ 292], 99.90th=[ 443], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 96, per=29.56%, avg=25.12, stdev=17.84, samples=458 iops : min= 1, max= 24, avg= 5.69, stdev= 4.52, samples=458 write: IOPS=5, BW=22.5KiB/s (23.0kB/s)(6348KiB/282011msec); 0 zone resets clat (msec): min=21, max=673, avg=142.51, stdev=84.51 lat (msec): min=21, max=673, avg=142.51, stdev=84.51 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 52], 10.00th=[ 62], 20.00th=[ 77], | 30.00th=[ 89], 40.00th=[ 104], 50.00th=[ 121], 60.00th=[ 138], | 70.00th=[ 163], 80.00th=[ 201], 90.00th=[ 262], 95.00th=[ 313], | 99.00th=[ 435], 99.50th=[ 477], 99.90th=[ 617], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 64, per=25.34%, avg=22.55, stdev=12.79, samples=543 iops : min= 1, max= 16, avg= 5.03, stdev= 3.29, samples=543 lat (msec) : 4=0.03%, 10=5.73%, 20=17.22%, 50=17.12%, 100=24.15% lat (msec) : 250=29.33%, 500=6.22%, 750=0.16%, 2000=0.03% cpu : usr=0.04%, sys=1.06%, ctx=5260, 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=145054: Wed Aug 26 09:19:08 2026 read: IOPS=5, BW=21.5KiB/s (21.0kB/s)(6028KiB/281005msec) clat (msec): min=4, max=525, avg=38.49, stdev=44.75 lat (msec): min=4, max=525, avg=38.49, stdev=44.75 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 56], 90.00th=[ 90], 95.00th=[ 123], | 99.00th=[ 218], 99.50th=[ 266], 99.90th=[ 426], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7, max= 95, per=28.89%, avg=24.56, stdev=17.44, samples=475 iops : min= 1, max= 23, avg= 5.54, stdev= 4.41, samples=475 write: IOPS=5, BW=22.3KiB/s (22.8kB/s)(6260KiB/281005msec); 0 zone resets clat (msec): min=33, max=1392, avg=142.21, stdev=87.79 lat (msec): min=33, max=1392, avg=142.22, stdev=87.80 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 54], 10.00th=[ 63], 20.00th=[ 78], | 30.00th=[ 90], 40.00th=[ 102], 50.00th=[ 118], 60.00th=[ 136], | 70.00th=[ 161], 80.00th=[ 197], 90.00th=[ 257], 95.00th=[ 313], | 99.00th=[ 422], 99.50th=[ 468], 99.90th=[ 600], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 7, max= 64, per=25.21%, avg=22.43, stdev=12.87, samples=538 iops : min= 1, max= 16, avg= 5.00, stdev= 3.32, samples=538 lat (msec) : 10=6.02%, 20=15.98%, 50=17.94%, 100=25.13%, 250=29.20% lat (msec) : 500=5.57%, 750=0.13%, 2000=0.03% cpu : usr=0.04%, sys=1.08%, ctx=5262, 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=145055: Wed Aug 26 09:19:08 2026 read: IOPS=5, BW=21.6KiB/s (22.1kB/s)(6052KiB/279999msec) clat (msec): min=4, max=481, avg=36.29, stdev=41.49 lat (msec): min=4, max=481, avg=36.29, stdev=41.49 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 50], 90.00th=[ 88], 95.00th=[ 113], | 99.00th=[ 209], 99.50th=[ 257], 99.90th=[ 388], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 7, max= 128, per=29.45%, avg=25.03, stdev=18.27, samples=468 iops : min= 1, max= 32, avg= 5.66, stdev= 4.64, samples=468 write: IOPS=5, BW=22.3KiB/s (22.8kB/s)(6236KiB/279999msec); 0 zone resets clat (msec): min=29, max=1581, avg=144.11, stdev=92.90 lat (msec): min=29, max=1581, avg=144.12, stdev=92.89 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 77], | 30.00th=[ 89], 40.00th=[ 102], 50.00th=[ 118], 60.00th=[ 136], | 70.00th=[ 163], 80.00th=[ 201], 90.00th=[ 262], 95.00th=[ 317], | 99.00th=[ 426], 99.50th=[ 477], 99.90th=[ 634], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 7, max= 71, per=25.20%, avg=22.43, stdev=12.84, samples=536 iops : min= 1, max= 17, avg= 5.00, stdev= 3.30, samples=536 lat (msec) : 10=5.50%, 20=17.64%, 50=18.00%, 100=24.19%, 250=28.61% lat (msec) : 500=5.86%, 750=0.16%, 2000=0.03% cpu : usr=0.04%, sys=1.01%, ctx=5193, 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=85.1KiB/s (87.2kB/s), 21.1KiB/s-21.6KiB/s (21.6kB/s-22.1kB/s), io=23.4MiB (24.6MB), run=279999-282011msec WRITE: bw=89.1KiB/s (91.3kB/s), 22.3KiB/s-22.5KiB/s (22.8kB/s-23.0kB/s), io=24.6MiB (25.7MB), run=279999-282011msec 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=145117: Wed Aug 26 09:19:57 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(5920KiB/34765msec) clat (usec): min=28, max=460298, avg=50357.57, stdev=51411.44 lat (usec): min=29, max=460300, avg=50360.30, stdev=51412.29 clat percentiles (usec): | 1.00th=[ 36], 5.00th=[ 56], 10.00th=[ 60], 20.00th=[ 72], | 30.00th=[ 21890], 40.00th=[ 33817], 50.00th=[ 45351], 60.00th=[ 52691], | 70.00th=[ 62653], 80.00th=[ 82314], 90.00th=[102237], 95.00th=[137364], | 99.00th=[229639], 99.50th=[341836], 99.90th=[459277], 99.95th=[459277], | 99.99th=[459277] bw ( KiB/s): min= 62, max= 381, per=25.16%, avg=168.58, stdev=74.94, samples=67 iops : min= 3, max= 23, avg= 9.76, stdev= 4.72, samples=67 write: IOPS=11, BW=183KiB/s (188kB/s)(6368KiB/34765msec); 0 zone resets clat (usec): min=1067, max=279113, avg=39826.58, stdev=43495.37 lat (usec): min=1068, max=279116, avg=39828.87, stdev=43495.63 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1680], 10.00th=[ 1860], 20.00th=[ 4555], | 30.00th=[ 8848], 40.00th=[ 14615], 50.00th=[ 25035], 60.00th=[ 36963], | 70.00th=[ 51643], 80.00th=[ 73925], 90.00th=[ 98042], 95.00th=[120062], | 99.00th=[196084], 99.50th=[221250], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 21, max= 411, per=26.06%, avg=183.46, stdev=86.52, samples=67 iops : min= 1, max= 25, avg=10.70, stdev= 5.46, samples=67 lat (usec) : 50=1.69%, 100=9.51%, 250=0.65% lat (msec) : 2=5.73%, 4=3.91%, 10=7.29%, 20=8.59%, 50=25.52% lat (msec) : 100=27.21%, 250=9.38%, 500=0.52% cpu : usr=0.05%, sys=5.03%, ctx=1280, 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=145118: Wed Aug 26 09:19:57 2026 read: IOPS=10, BW=161KiB/s (165kB/s)(5744KiB/35747msec) clat (usec): min=36, max=545234, avg=51128.18, stdev=49557.76 lat (usec): min=36, max=545236, avg=51132.64, stdev=49556.16 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 4293], | 30.00th=[ 27132], 40.00th=[ 36439], 50.00th=[ 44827], 60.00th=[ 54264], | 70.00th=[ 64750], 80.00th=[ 79168], 90.00th=[ 98042], 95.00th=[125305], | 99.00th=[208667], 99.50th=[333448], 99.90th=[541066], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 30, max= 442, per=24.10%, avg=161.50, stdev=75.74, samples=68 iops : min= 1, max= 27, avg= 9.31, stdev= 4.80, samples=68 write: IOPS=11, BW=183KiB/s (187kB/s)(6544KiB/35747msec); 0 zone resets clat (usec): min=1351, max=301300, avg=42274.97, stdev=47167.31 lat (usec): min=1353, max=301302, avg=42277.05, stdev=47167.47 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1680], 10.00th=[ 1844], 20.00th=[ 5735], | 30.00th=[ 9372], 40.00th=[ 15664], 50.00th=[ 24249], 60.00th=[ 35914], | 70.00th=[ 53216], 80.00th=[ 74974], 90.00th=[103285], 95.00th=[135267], | 99.00th=[221250], 99.50th=[246416], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 31, max= 383, per=25.37%, avg=178.58, stdev=91.99, samples=69 iops : min= 1, max= 23, avg=10.39, stdev= 5.79, samples=69 lat (usec) : 50=1.04%, 100=7.29%, 250=0.39%, 500=0.13%, 1000=0.13% lat (msec) : 2=6.25%, 4=3.52%, 10=7.29%, 20=9.24%, 50=27.34% lat (msec) : 100=26.82%, 250=9.90%, 500=0.52%, 750=0.13% cpu : usr=0.07%, sys=4.81%, ctx=1382, 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=145119: Wed Aug 26 09:19:57 2026 read: IOPS=11, BW=181KiB/s (186kB/s)(6256KiB/34512msec) clat (usec): min=37, max=438710, avg=49327.76, stdev=45063.88 lat (usec): min=38, max=438711, avg=49329.49, stdev=45063.30 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 285], | 30.00th=[ 26084], 40.00th=[ 35914], 50.00th=[ 43779], 60.00th=[ 52167], | 70.00th=[ 63701], 80.00th=[ 79168], 90.00th=[101188], 95.00th=[135267], | 99.00th=[175113], 99.50th=[250610], 99.90th=[438305], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 31, max= 351, per=27.72%, avg=185.73, stdev=77.55, samples=66 iops : min= 1, max= 21, avg=10.85, stdev= 4.91, samples=66 write: IOPS=10, BW=175KiB/s (179kB/s)(6032KiB/34512msec); 0 zone resets clat (usec): min=1163, max=259902, avg=39210.60, stdev=42313.18 lat (usec): min=1164, max=259905, avg=39213.03, stdev=42313.37 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1729], 10.00th=[ 1909], 20.00th=[ 5669], | 30.00th=[ 9503], 40.00th=[ 16319], 50.00th=[ 24773], 60.00th=[ 37487], | 70.00th=[ 50594], 80.00th=[ 67634], 90.00th=[ 92799], 95.00th=[124257], | 99.00th=[198181], 99.50th=[246416], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 21, max= 474, per=25.12%, avg=176.83, stdev=88.63, samples=66 iops : min= 1, max= 29, avg=10.27, stdev= 5.58, samples=66 lat (usec) : 50=1.04%, 100=8.46%, 250=0.65%, 500=0.26%, 750=0.26% lat (msec) : 2=5.34%, 4=2.21%, 10=8.59%, 20=7.94%, 50=28.26% lat (msec) : 100=27.47%, 250=9.11%, 500=0.39% cpu : usr=0.05%, sys=4.64%, ctx=1382, 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=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=145120: Wed Aug 26 09:19:57 2026 read: IOPS=11, BW=178KiB/s (182kB/s)(6032KiB/33924msec) clat (usec): min=34, max=444318, avg=51076.69, stdev=50524.61 lat (usec): min=34, max=444319, avg=51078.56, stdev=50524.62 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 54], 10.00th=[ 59], 20.00th=[ 91], | 30.00th=[ 25297], 40.00th=[ 36963], 50.00th=[ 45876], 60.00th=[ 55837], | 70.00th=[ 65799], 80.00th=[ 79168], 90.00th=[100140], 95.00th=[125305], | 99.00th=[198181], 99.50th=[417334], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 31, max= 351, per=26.81%, avg=179.63, stdev=79.00, samples=65 iops : min= 1, max= 21, avg=10.45, stdev= 4.97, samples=65 write: IOPS=11, BW=184KiB/s (189kB/s)(6256KiB/33924msec); 0 zone resets clat (usec): min=1043, max=224623, avg=35926.82, stdev=38101.65 lat (usec): min=1045, max=224625, avg=35928.97, stdev=38101.70 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1598], 10.00th=[ 1778], 20.00th=[ 4555], | 30.00th=[ 8979], 40.00th=[ 14353], 50.00th=[ 22414], 60.00th=[ 31851], | 70.00th=[ 46400], 80.00th=[ 63177], 90.00th=[ 92799], 95.00th=[113771], | 99.00th=[173016], 99.50th=[196084], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 31, max= 415, per=26.24%, avg=184.73, stdev=89.10, samples=66 iops : min= 1, max= 25, avg=10.77, stdev= 5.61, samples=66 lat (usec) : 50=1.43%, 100=8.98%, 250=0.13%, 500=0.26%, 750=0.26% lat (msec) : 2=7.42%, 4=2.34%, 10=7.55%, 20=8.98%, 50=25.65% lat (msec) : 100=27.99%, 250=8.59%, 500=0.39% cpu : usr=0.09%, sys=5.13%, ctx=1348, 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=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=670KiB/s (686kB/s), 161KiB/s-181KiB/s (165kB/s-186kB/s), io=23.4MiB (24.5MB), run=33924-35747msec WRITE: bw=705KiB/s (722kB/s), 175KiB/s-184KiB/s (179kB/s-189kB/s), io=24.6MiB (25.8MB), run=33924-35747msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145121: Wed Aug 26 09:20:39 2026 read: IOPS=4, BW=77.3KiB/s (79.1kB/s)(5920KiB/76625msec) clat (msec): min=7, max=330, avg=42.36, stdev=46.70 lat (msec): min=7, max=330, avg=42.36, stdev=46.70 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 50], 90.00th=[ 90], 95.00th=[ 140], | 99.00th=[ 268], 99.50th=[ 279], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 30, max= 286, per=29.78%, avg=91.43, stdev=54.49, samples=127 iops : min= 1, max= 17, avg= 4.95, stdev= 3.47, samples=127 write: IOPS=5, BW=83.1KiB/s (85.1kB/s)(6368KiB/76625msec); 0 zone resets clat (msec): min=47, max=683, avg=151.65, stdev=91.20 lat (msec): min=47, max=683, avg=151.65, stdev=91.20 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 92], | 30.00th=[ 101], 40.00th=[ 110], 50.00th=[ 124], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 188], 90.00th=[ 259], 95.00th=[ 342], | 99.00th=[ 523], 99.50th=[ 584], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 30, max= 191, per=26.86%, avg=86.76, stdev=41.45, samples=144 iops : min= 1, max= 11, avg= 4.64, stdev= 2.66, samples=144 lat (msec) : 10=2.21%, 20=11.98%, 50=24.74%, 100=19.66%, 250=35.16% lat (msec) : 500=5.60%, 750=0.65% cpu : usr=0.05%, sys=1.17%, ctx=1278, 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=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=145122: Wed Aug 26 09:20:39 2026 read: IOPS=4, BW=73.8KiB/s (75.6kB/s)(5744KiB/77822msec) clat (msec): min=6, max=360, avg=43.88, stdev=48.84 lat (msec): min=6, max=360, avg=43.88, stdev=48.84 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 94], 95.00th=[ 136], | 99.00th=[ 279], 99.50th=[ 305], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 29, max= 352, per=29.85%, avg=91.63, stdev=64.10, samples=123 iops : min= 1, max= 22, avg= 4.95, stdev= 4.09, samples=123 write: IOPS=5, BW=84.1KiB/s (86.1kB/s)(6544KiB/77822msec); 0 zone resets clat (msec): min=44, max=654, avg=150.62, stdev=92.82 lat (msec): min=44, max=654, avg=150.63, stdev=92.82 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 101], 40.00th=[ 110], 50.00th=[ 121], 60.00th=[ 138], | 70.00th=[ 159], 80.00th=[ 192], 90.00th=[ 264], 95.00th=[ 351], | 99.00th=[ 510], 99.50th=[ 592], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 29, max= 223, per=27.06%, avg=87.41, stdev=44.99, samples=147 iops : min= 1, max= 13, avg= 4.69, stdev= 2.85, samples=147 lat (msec) : 10=2.21%, 20=12.50%, 50=21.61%, 100=22.53%, 250=35.03% lat (msec) : 500=5.47%, 750=0.65% cpu : usr=0.03%, sys=1.16%, ctx=1375, 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=145123: Wed Aug 26 09:20:39 2026 read: IOPS=5, BW=83.5KiB/s (85.5kB/s)(6256KiB/74913msec) clat (msec): min=6, max=324, avg=39.33, stdev=42.84 lat (msec): min=6, max=324, avg=39.33, stdev=42.84 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 35], 80.00th=[ 47], 90.00th=[ 75], 95.00th=[ 124], | 99.00th=[ 241], 99.50th=[ 259], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 29, max= 319, per=33.25%, avg=102.09, stdev=66.03, samples=121 iops : min= 1, max= 19, avg= 5.63, stdev= 4.19, samples=121 write: IOPS=5, BW=80.5KiB/s (82.5kB/s)(6032KiB/74913msec); 0 zone resets clat (msec): min=44, max=720, avg=157.43, stdev=98.33 lat (msec): min=44, max=720, avg=157.43, stdev=98.33 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 67], 10.00th=[ 78], 20.00th=[ 89], | 30.00th=[ 100], 40.00th=[ 111], 50.00th=[ 122], 60.00th=[ 140], | 70.00th=[ 165], 80.00th=[ 215], 90.00th=[ 296], 95.00th=[ 359], | 99.00th=[ 493], 99.50th=[ 584], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 30, max= 160, per=25.47%, avg=82.27, stdev=40.04, samples=143 iops : min= 1, max= 10, avg= 4.36, stdev= 2.57, samples=143 lat (msec) : 10=1.17%, 20=15.63%, 50=25.78%, 100=19.66%, 250=30.21% lat (msec) : 500=7.16%, 750=0.39% cpu : usr=0.03%, sys=1.07%, ctx=1312, 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=145124: Wed Aug 26 09:20:39 2026 read: IOPS=4, BW=79.2KiB/s (81.1kB/s)(6032KiB/76169msec) clat (msec): min=7, max=267, avg=42.44, stdev=44.24 lat (msec): min=7, max=267, avg=42.44, stdev=44.24 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 59], 90.00th=[ 94], 95.00th=[ 150], | 99.00th=[ 230], 99.50th=[ 259], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 29, max= 287, per=30.94%, avg=94.99, stdev=63.98, samples=124 iops : min= 1, max= 17, avg= 5.17, stdev= 4.02, samples=124 write: IOPS=5, BW=82.1KiB/s (84.1kB/s)(6256KiB/76169msec); 0 zone resets clat (msec): min=40, max=627, avg=152.20, stdev=93.01 lat (msec): min=40, max=627, avg=152.21, stdev=93.01 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 68], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 101], 40.00th=[ 110], 50.00th=[ 124], 60.00th=[ 140], | 70.00th=[ 161], 80.00th=[ 199], 90.00th=[ 275], 95.00th=[ 334], | 99.00th=[ 558], 99.50th=[ 617], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 29, max= 191, per=26.64%, avg=86.06, stdev=41.31, samples=143 iops : min= 1, max= 11, avg= 4.60, stdev= 2.64, samples=143 lat (msec) : 10=2.60%, 20=13.93%, 50=22.01%, 100=22.01%, 250=32.55% lat (msec) : 500=6.12%, 750=0.78% cpu : usr=0.04%, sys=1.09%, ctx=1253, 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=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=308KiB/s (315kB/s), 73.8KiB/s-83.5KiB/s (75.6kB/s-85.5kB/s), io=23.4MiB (24.5MB), run=74913-77822msec WRITE: bw=324KiB/s (332kB/s), 80.5KiB/s-84.1KiB/s (82.5kB/s-86.1kB/s), io=24.6MiB (25.8MB), run=74913-77822msec 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=145147: Wed Aug 26 09:20:56 2026 read: IOPS=1, BW=1889KiB/s (1935kB/s)(7168KiB/3794msec) clat (usec): min=741, max=329914, avg=236300.79, stdev=110309.92 lat (usec): min=742, max=329915, avg=236302.18, stdev=110310.26 clat percentiles (usec): | 1.00th=[ 742], 5.00th=[ 742], 10.00th=[ 742], 20.00th=[217056], | 30.00th=[248513], 40.00th=[248513], 50.00th=[265290], 60.00th=[287310], | 70.00th=[287310], 80.00th=[304088], 90.00th=[329253], 95.00th=[329253], | 99.00th=[329253], 99.50th=[329253], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 1980, max= 3923, per=64.72%, avg=2734.50, stdev=926.10, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1349KiB/s (1382kB/s)(5120KiB/3794msec); 0 zone resets clat (msec): min=290, max=628, avg=426.90, stdev=141.47 lat (msec): min=290, max=628, avg=427.00, stdev=141.47 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1906, max= 2019, per=33.44%, avg=1978.25, stdev=52.47, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=66.67%, 750=8.33% cpu : usr=0.00%, sys=11.86%, ctx=158, 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=145148: Wed Aug 26 09:20:56 2026 read: IOPS=0, BW=423KiB/s (433kB/s)(2048KiB/4847msec) clat (msec): min=264, max=450, avg=357.72, stdev=131.86 lat (msec): min=264, max=450, avg=357.72, stdev=131.86 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 266], 10.00th=[ 266], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 266], 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= 1450, max= 1906, per=39.72%, avg=1678.00, stdev=322.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2113KiB/s (2163kB/s)(10.0MiB/4847msec); 0 zone resets clat (msec): min=152, max=912, avg=412.96, stdev=285.00 lat (msec): min=152, max=912, avg=413.05, stdev=285.00 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 194], | 30.00th=[ 211], 40.00th=[ 232], 50.00th=[ 245], 60.00th=[ 268], | 70.00th=[ 405], 80.00th=[ 684], 90.00th=[ 827], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1450, max= 5941, per=48.89%, avg=2891.67, stdev=1718.42, samples=6 iops : min= 1, max= 5, avg= 2.17, stdev= 1.60, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=16.67% cpu : usr=0.06%, sys=11.12%, ctx=131, 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=145149: Wed Aug 26 09:20:56 2026 read: IOPS=1, BW=1327KiB/s (1359kB/s)(6144KiB/4631msec) clat (usec): min=470, max=380818, avg=160118.49, stdev=149630.26 lat (usec): min=472, max=380818, avg=160119.65, stdev=149630.03 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 578], | 30.00th=[ 578], 40.00th=[126354], 50.00th=[126354], 60.00th=[191890], | 70.00th=[261096], 80.00th=[261096], 90.00th=[379585], 95.00th=[379585], | 99.00th=[379585], 99.50th=[379585], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 1906, max= 2048, per=46.97%, avg=1984.40, stdev=53.10, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1327KiB/s (1359kB/s)(6144KiB/4631msec); 0 zone resets clat (msec): min=194, max=1263, avg=609.67, stdev=361.73 lat (msec): min=194, max=1263, avg=611.29, stdev=361.19 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 558], | 70.00th=[ 709], 80.00th=[ 709], 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= 1793, max= 2048, per=33.07%, avg=1956.20, stdev=106.05, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=25.00%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=8.10%, ctx=183, 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=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=145150: Wed Aug 26 09:20:56 2026 read: IOPS=1, BW=1153KiB/s (1181kB/s)(5120KiB/4439msec) clat (usec): min=409, max=828443, avg=210426.29, stdev=358357.94 lat (usec): min=410, max=828444, avg=210427.56, stdev=358357.94 clat percentiles (usec): | 1.00th=[ 412], 5.00th=[ 412], 10.00th=[ 412], 20.00th=[ 412], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 1975], 60.00th=[ 1975], | 70.00th=[221250], 80.00th=[221250], 90.00th=[826278], 95.00th=[826278], | 99.00th=[826278], 99.50th=[826278], 99.90th=[826278], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 1906, max= 5941, per=92.86%, avg=3923.50, stdev=2853.18, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1615KiB/s (1654kB/s)(7168KiB/4439msec); 0 zone resets clat (msec): min=238, max=1182, avg=483.54, stdev=346.97 lat (msec): min=238, max=1182, avg=483.63, stdev=346.97 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 275], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 300], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 709], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1365, max= 4031, per=38.54%, avg=2279.40, stdev=1017.51, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 2=8.33%, 250=16.67%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=8.22%, ctx=133, 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=4225KiB/s (4327kB/s), 423KiB/s-1889KiB/s (433kB/s-1935kB/s), io=20.0MiB (20.0MB), run=3794-4847msec WRITE: bw=5915KiB/s (6057kB/s), 1327KiB/s-2113KiB/s (1359kB/s-2163kB/s), io=28.0MiB (29.4MB), run=3794-4847msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145142: Wed Aug 26 09:20:56 2026 read: IOPS=1, BW=1902KiB/s (1947kB/s)(7168KiB/3769msec) clat (msec): min=118, max=320, avg=223.64, stdev=89.13 lat (msec): min=118, max=320, avg=223.64, stdev=89.13 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 150], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 182], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 317], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 1921, max= 5763, per=78.82%, avg=2930.50, stdev=1888.92, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=1, BW=1358KiB/s (1391kB/s)(5120KiB/3769msec); 0 zone resets clat (msec): min=204, max=610, avg=425.84, stdev=200.36 lat (msec): min=204, max=610, avg=425.93, stdev=200.36 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 205], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1980, max= 3923, per=47.62%, avg=2479.25, stdev=962.58, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=50.00%, 500=25.00%, 750=25.00% cpu : usr=0.03%, sys=3.00%, ctx=56, 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=145143: Wed Aug 26 09:20:56 2026 read: IOPS=0, BW=372KiB/s (381kB/s)(2048KiB/5507msec) clat (msec): min=263, max=313, avg=288.46, stdev=35.28 lat (msec): min=263, max=313, avg=288.46, stdev=35.28 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 1389, max= 2027, per=45.94%, avg=1708.00, stdev=451.13, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1859KiB/s (1904kB/s)(10.0MiB/5507msec); 0 zone resets clat (msec): min=191, max=1659, avg=483.85, stdev=453.01 lat (msec): min=192, max=1659, avg=483.96, stdev=452.99 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 230], | 30.00th=[ 234], 40.00th=[ 266], 50.00th=[ 300], 60.00th=[ 305], | 70.00th=[ 342], 80.00th=[ 485], 90.00th=[ 827], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 1389, max= 4087, per=55.80%, avg=2905.00, stdev=1218.09, samples=6 iops : min= 1, max= 3, avg= 2.17, stdev= 0.98, samples=6 lat (msec) : 250=25.00%, 500=58.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.04%, sys=4.30%, ctx=103, 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=145144: Wed Aug 26 09:20:56 2026 read: IOPS=1, BW=1315KiB/s (1346kB/s)(6144KiB/4673msec) clat (msec): min=117, max=626, avg=271.90, stdev=185.87 lat (msec): min=117, max=626, avg=271.90, stdev=185.87 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 257], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1910, max= 4031, per=67.00%, avg=2491.00, stdev=1027.86, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1315KiB/s (1346kB/s)(6144KiB/4673msec); 0 zone resets clat (msec): min=272, max=714, avg=490.66, stdev=177.18 lat (msec): min=272, max=715, avg=490.77, stdev=177.17 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 567], | 70.00th=[ 651], 80.00th=[ 651], 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= 1368, max= 2048, per=36.11%, avg=1880.00, stdev=287.99, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=25.00%, 500=41.67%, 750=33.33% cpu : usr=0.13%, sys=3.38%, ctx=64, 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=145145: Wed Aug 26 09:20:56 2026 read: IOPS=1, BW=1331KiB/s (1362kB/s)(5120KiB/3848msec) clat (msec): min=109, max=270, avg=200.74, stdev=58.88 lat (msec): min=109, max=270, avg=200.74, stdev=58.88 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 110], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 205], 60.00th=[ 205], | 70.00th=[ 228], 80.00th=[ 228], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 7641, max= 7641, per=100.00%, avg=7641.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1863KiB/s (1907kB/s)(7168KiB/3848msec); 0 zone resets clat (msec): min=199, max=722, avg=394.96, stdev=190.66 lat (msec): min=199, max=723, avg=395.05, stdev=190.66 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 271], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 342], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 592], 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= 1479, max= 4096, per=51.91%, avg=2702.40, stdev=1216.86, samples=5 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=5 lat (msec) : 250=41.67%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=2.83%, ctx=46, 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=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=3719KiB/s (3808kB/s), 372KiB/s-1902KiB/s (381kB/s-1947kB/s), io=20.0MiB (20.0MB), run=3769-5507msec WRITE: bw=5206KiB/s (5331kB/s), 1315KiB/s-1863KiB/s (1346kB/s-1907kB/s), io=28.0MiB (29.4MB), run=3769-5507msec 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=145157: Wed Aug 26 09:21:11 2026 read: IOPS=0, BW=3630KiB/s (3717kB/s)(12.0MiB/3385msec) clat (msec): min=906, max=1179, avg=1012.51, stdev=146.53 lat (msec): min=906, max=1179, avg=1012.51, stdev=146.53 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 8078, max= 8192, per=100.00%, avg=8135.00, stdev=80.61, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.06%, sys=9.31%, ctx=225, 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=145158: Wed Aug 26 09:21:11 2026 read: IOPS=0, BW=1151KiB/s (1179kB/s)(4096KiB/3559msec) clat (nsec): min=971163k, max=971163k, avg=971163259.00, stdev= 0.00 lat (nsec): min=971166k, max=971166k, avg=971165765.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 969], 5.00th=[ 969], 10.00th=[ 969], 20.00th=[ 969], | 30.00th=[ 969], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 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= 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=2302KiB/s (2357kB/s)(8192KiB/3559msec); 0 zone resets clat (msec): min=728, max=1792, avg=1260.33, stdev=752.69 lat (msec): min=729, max=1792, avg=1261.21, stdev=751.92 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 1787], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 8047, max= 8047, per=87.40%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.23%, ctx=133, 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=145159: Wed Aug 26 09:21:11 2026 write: IOPS=0, BW=3686KiB/s (3774kB/s)(12.0MiB/3334msec); 0 zone resets clat (msec): min=326, max=1614, avg=1081.55, stdev=672.37 lat (msec): min=326, max=1614, avg=1081.85, stdev=672.37 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8062, max= 8078, per=87.65%, avg=8070.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.69%, 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=145160: Wed Aug 26 09:21:11 2026 write: IOPS=1, BW=5007KiB/s (5128kB/s)(12.0MiB/2454msec); 0 zone resets clat (msec): min=465, max=1070, avg=765.62, stdev=302.48 lat (msec): min=466, max=1071, avg=765.86, stdev=302.58 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 1070], 80.00th=[ 1070], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 8078, max= 8094, per=87.82%, avg=8086.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.34%, ctx=67, 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=4604KiB/s (4714kB/s), 1151KiB/s-3630KiB/s (1179kB/s-3717kB/s), io=16.0MiB (16.8MB), run=3385-3559msec WRITE: bw=9207KiB/s (9428kB/s), 2302KiB/s-5007KiB/s (2357kB/s-5128kB/s), io=32.0MiB (33.6MB), run=2454-3559msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145162: Wed Aug 26 09:21:11 2026 read: IOPS=2, BW=8783KiB/s (8994kB/s)(12.0MiB/1399msec) clat (msec): min=359, max=508, avg=423.43, stdev=76.43 lat (msec): min=359, max=508, avg=423.43, stdev=76.43 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 6131, max= 8078, per=100.00%, avg=7104.50, stdev=1376.74, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=9.37%, ctx=78, 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=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=145163: Wed Aug 26 09:21:11 2026 read: IOPS=0, BW=1096KiB/s (1123kB/s)(4096KiB/3736msec) clat (nsec): min=1794.9M, max=1794.9M, avg=1794861466.00, stdev= 0.00 lat (nsec): min=1794.9M, max=1794.9M, avg=1794864325.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1787], 5.00th=[ 1787], 10.00th=[ 1787], 20.00th=[ 1787], | 30.00th=[ 1787], 40.00th=[ 1787], 50.00th=[ 1787], 60.00th=[ 1787], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2193KiB/s (2245kB/s)(8192KiB/3736msec); 0 zone resets clat (msec): min=477, max=1275, avg=876.49, stdev=564.63 lat (msec): min=477, max=1276, avg=876.76, stdev=564.74 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 1284], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7816, max= 7816, per=89.12%, avg=7816.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.30%, ctx=45, 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=145164: Wed Aug 26 09:21:11 2026 write: IOPS=0, BW=3454KiB/s (3537kB/s)(12.0MiB/3558msec); 0 zone resets clat (msec): min=294, max=1630, avg=1162.74, stdev=753.07 lat (msec): min=294, max=1632, avg=1163.47, stdev=753.44 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 1569], 50.00th=[ 1569], 60.00th=[ 1569], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 8031, max= 8031, per=91.57%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.22%, ctx=29, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=145165: Wed Aug 26 09:21:11 2026 write: IOPS=0, BW=4038KiB/s (4135kB/s)(12.0MiB/3043msec); 0 zone resets clat (msec): min=482, max=1543, avg=921.56, stdev=553.48 lat (msec): min=482, max=1543, avg=922.30, stdev=553.24 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7816, max= 8078, per=90.62%, avg=7947.00, stdev=185.26, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.13%, sys=4.44%, ctx=52, 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 Run status group 0 (all jobs): READ: bw=4385KiB/s (4491kB/s), 1096KiB/s-8783KiB/s (1123kB/s-8994kB/s), io=16.0MiB (16.8MB), run=1399-3736msec WRITE: bw=8771KiB/s (8981kB/s), 2193KiB/s-4038KiB/s (2245kB/s-4135kB/s), io=32.0MiB (33.6MB), run=3043-3736msec