== sanity test 398b: DIO and buffer IO race ============== 10:46:12 (1788878772) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.95691 s, 17.0 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179469: Tue Sep 8 10:47:14 2026 read: IOPS=28, BW=115KiB/s (118kB/s)(5992KiB/52031msec) clat (usec): min=32, max=712151, avg=18876.33, stdev=20652.19 lat (usec): min=32, max=712151, avg=18879.43, stdev=20651.59 clat percentiles (usec): | 1.00th=[ 95], 5.00th=[ 6783], 10.00th=[ 8455], 20.00th=[ 10421], | 30.00th=[ 12125], 40.00th=[ 14353], 50.00th=[ 16581], 60.00th=[ 18744], | 70.00th=[ 21627], 80.00th=[ 24773], 90.00th=[ 31065], 95.00th=[ 38536], | 99.00th=[ 53740], 99.50th=[ 58459], 99.90th=[ 76022], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 7, max= 184, per=24.75%, avg=114.09, stdev=32.61, samples=103 iops : min= 1, max= 46, avg=28.09, stdev= 8.22, samples=103 write: IOPS=30, BW=121KiB/s (124kB/s)(6296KiB/52031msec); 0 zone resets clat (usec): min=661, max=72120, avg=14944.69, stdev=11845.85 lat (usec): min=661, max=72120, avg=14945.96, stdev=11845.64 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1827], 10.00th=[ 2474], 20.00th=[ 3556], | 30.00th=[ 6325], 40.00th=[10159], 50.00th=[12649], 60.00th=[15401], | 70.00th=[19006], 80.00th=[23725], 90.00th=[31589], 95.00th=[38011], | 99.00th=[51643], 99.50th=[58459], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 32, max= 184, per=24.97%, avg=120.60, stdev=32.11, samples=102 iops : min= 8, max= 46, avg=29.73, stdev= 8.06, samples=102 lat (usec) : 50=0.13%, 100=0.39%, 250=0.85%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.39% lat (msec) : 2=2.51%, 4=8.50%, 10=15.89%, 20=39.39%, 50=30.34% lat (msec) : 100=1.53%, 750=0.03% cpu : usr=0.10%, sys=22.55%, ctx=8754, 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=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=179471: Tue Sep 8 10:47:14 2026 read: IOPS=28, BW=115KiB/s (118kB/s)(5940KiB/51588msec) clat (usec): min=28, max=76445, avg=18008.27, stdev=10051.38 lat (usec): min=29, max=76446, avg=18009.01, stdev=10051.40 clat percentiles (usec): | 1.00th=[ 114], 5.00th=[ 6718], 10.00th=[ 8094], 20.00th=[10159], | 30.00th=[11994], 40.00th=[13960], 50.00th=[16188], 60.00th=[18482], | 70.00th=[21365], 80.00th=[24773], 90.00th=[30016], 95.00th=[35914], | 99.00th=[53740], 99.50th=[62129], 99.90th=[72877], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 7, max= 200, per=24.86%, avg=114.61, stdev=34.38, samples=102 iops : min= 1, max= 50, avg=28.22, stdev= 8.69, samples=102 write: IOPS=30, BW=123KiB/s (126kB/s)(6348KiB/51588msec); 0 zone resets clat (usec): min=714, max=698519, avg=15502.77, stdev=21024.77 lat (usec): min=714, max=698520, avg=15503.68, stdev=21024.81 clat percentiles (usec): | 1.00th=[ 947], 5.00th=[ 1942], 10.00th=[ 2606], 20.00th=[ 3654], | 30.00th=[ 6521], 40.00th=[ 10028], 50.00th=[ 12518], 60.00th=[ 15401], | 70.00th=[ 19006], 80.00th=[ 23462], 90.00th=[ 32375], 95.00th=[ 38011], | 99.00th=[ 51643], 99.50th=[ 57410], 99.90th=[ 87557], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 63, max= 200, per=25.50%, avg=123.15, stdev=31.67, samples=101 iops : min= 15, max= 50, avg=30.37, stdev= 7.96, samples=101 lat (usec) : 50=0.10%, 100=0.20%, 250=0.78%, 500=0.16%, 750=0.10% lat (usec) : 1000=0.52% lat (msec) : 2=2.18%, 4=8.37%, 10=17.51%, 20=39.32%, 50=29.43% lat (msec) : 100=1.30%, 750=0.03% cpu : usr=0.12%, sys=22.53%, ctx=8849, 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=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=179473: Tue Sep 8 10:47:14 2026 read: IOPS=29, BW=116KiB/s (119kB/s)(6028KiB/51802msec) clat (usec): min=42, max=717839, avg=18729.95, stdev=20782.95 lat (usec): min=43, max=717840, avg=18730.72, stdev=20782.96 clat percentiles (usec): | 1.00th=[ 91], 5.00th=[ 6783], 10.00th=[ 8291], 20.00th=[ 10159], | 30.00th=[ 11994], 40.00th=[ 14353], 50.00th=[ 16450], 60.00th=[ 18744], | 70.00th=[ 21365], 80.00th=[ 25297], 90.00th=[ 30802], 95.00th=[ 36439], | 99.00th=[ 54789], 99.50th=[ 65799], 99.90th=[ 85459], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 207, per=25.15%, avg=115.92, stdev=32.26, samples=103 iops : min= 1, max= 51, avg=28.55, stdev= 8.09, samples=103 write: IOPS=30, BW=121KiB/s (124kB/s)(6260KiB/51802msec); 0 zone resets clat (usec): min=622, max=67873, avg=14905.35, stdev=11750.27 lat (usec): min=622, max=67874, avg=14907.53, stdev=11749.21 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 2212], 10.00th=[ 2704], 20.00th=[ 3752], | 30.00th=[ 6259], 40.00th=[ 9765], 50.00th=[12256], 60.00th=[15008], | 70.00th=[19530], 80.00th=[24249], 90.00th=[31327], 95.00th=[38011], | 99.00th=[51643], 99.50th=[55313], 99.90th=[62129], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 22, max= 208, per=24.89%, avg=120.21, stdev=35.94, samples=103 iops : min= 5, max= 52, avg=29.62, stdev= 9.05, samples=103 lat (usec) : 50=0.10%, 100=0.52%, 250=0.85%, 750=0.10%, 1000=0.10% lat (msec) : 2=1.82%, 4=8.85%, 10=17.61%, 20=38.35%, 50=30.34% lat (msec) : 100=1.33%, 750=0.03% cpu : usr=0.14%, sys=22.58%, ctx=8656, 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=179474: Tue Sep 8 10:47:14 2026 read: IOPS=29, BW=117KiB/s (120kB/s)(6052KiB/51782msec) clat (usec): min=31, max=104409, avg=18048.03, stdev=10384.04 lat (usec): min=32, max=104410, avg=18048.69, stdev=10384.07 clat percentiles (usec): | 1.00th=[ 88], 5.00th=[ 6980], 10.00th=[ 8225], 20.00th=[ 9896], | 30.00th=[ 11731], 40.00th=[ 13566], 50.00th=[ 15926], 60.00th=[ 18482], | 70.00th=[ 21365], 80.00th=[ 25035], 90.00th=[ 30802], 95.00th=[ 36439], | 99.00th=[ 53216], 99.50th=[ 61604], 99.90th=[ 81265], 99.95th=[104334], | 99.99th=[104334] bw ( KiB/s): min= 8, max= 198, per=25.52%, avg=117.64, stdev=28.34, samples=102 iops : min= 2, max= 49, avg=28.98, stdev= 7.14, samples=102 write: IOPS=30, BW=120KiB/s (123kB/s)(6236KiB/51782msec); 0 zone resets clat (usec): min=727, max=728541, avg=15550.25, stdev=21926.01 lat (usec): min=727, max=728543, avg=15551.12, stdev=21926.03 clat percentiles (usec): | 1.00th=[ 979], 5.00th=[ 1926], 10.00th=[ 2540], 20.00th=[ 3359], | 30.00th=[ 5800], 40.00th=[ 9765], 50.00th=[ 12387], 60.00th=[ 15664], | 70.00th=[ 19268], 80.00th=[ 24511], 90.00th=[ 32375], 95.00th=[ 39584], | 99.00th=[ 56361], 99.50th=[ 60031], 99.90th=[ 77071], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 32, max= 232, per=25.08%, avg=121.15, stdev=34.22, samples=102 iops : min= 8, max= 58, avg=29.86, stdev= 8.59, samples=102 lat (usec) : 50=0.29%, 100=0.46%, 250=0.59%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.52% lat (msec) : 2=2.15%, 4=9.24%, 10=17.81%, 20=37.43%, 50=29.88% lat (msec) : 100=1.46%, 250=0.03%, 750=0.03% cpu : usr=0.09%, sys=22.59%, ctx=8655, 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=461KiB/s (473kB/s), 115KiB/s-117KiB/s (118kB/s-120kB/s), io=23.4MiB (24.6MB), run=51588-52031msec WRITE: bw=483KiB/s (495kB/s), 120KiB/s-123KiB/s (123kB/s-126kB/s), io=24.6MiB (25.7MB), run=51588-52031msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179468: Tue Sep 8 10:47:22 2026 read: IOPS=24, BW=98.5KiB/s (101kB/s)(5992KiB/60804msec) clat (usec): min=1973, max=713215, avg=17217.53, stdev=22708.98 lat (usec): min=1973, max=713216, avg=17218.25, stdev=22709.09 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 26], 90.00th=[ 38], 95.00th=[ 46], | 99.00th=[ 66], 99.50th=[ 75], 99.90th=[ 97], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 31, max= 360, per=25.01%, avg=98.53, stdev=66.55, samples=120 iops : min= 7, max= 90, avg=24.28, stdev=16.78, samples=120 write: IOPS=25, BW=104KiB/s (106kB/s)(6296KiB/60804msec); 0 zone resets clat (msec): min=3, max=105, avg=22.10, stdev=16.04 lat (msec): min=3, max=105, avg=22.10, stdev=16.04 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 22], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 46], 95.00th=[ 55], | 99.00th=[ 75], 99.50th=[ 81], 99.90th=[ 94], 99.95th=[ 106], | 99.99th=[ 106] bw ( KiB/s): min= 15, max= 336, per=25.08%, avg=103.60, stdev=65.65, samples=120 iops : min= 3, max= 84, avg=25.55, stdev=16.55, samples=120 lat (msec) : 2=0.03%, 4=2.08%, 10=30.08%, 20=32.88%, 50=29.52% lat (msec) : 100=5.34%, 250=0.03%, 750=0.03% cpu : usr=0.10%, sys=10.07%, ctx=5545, 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=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=179470: Tue Sep 8 10:47:22 2026 read: IOPS=24, BW=97.8KiB/s (100kB/s)(5940KiB/60717msec) clat (msec): min=2, max=721, avg=17.10, stdev=22.72 lat (msec): min=2, max=721, avg=17.11, stdev=22.72 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 15], | 70.00th=[ 19], 80.00th=[ 24], 90.00th=[ 35], 95.00th=[ 45], | 99.00th=[ 65], 99.50th=[ 75], 99.90th=[ 110], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 15, max= 336, per=24.96%, avg=98.33, stdev=65.93, samples=120 iops : min= 3, max= 84, avg=24.23, stdev=16.64, samples=120 write: IOPS=26, BW=105KiB/s (107kB/s)(6348KiB/60717msec); 0 zone resets clat (msec): min=4, max=108, avg=22.11, stdev=15.95 lat (msec): min=4, max=108, avg=22.11, stdev=15.95 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 44], 95.00th=[ 54], | 99.00th=[ 77], 99.50th=[ 89], 99.90th=[ 109], 99.95th=[ 109], | 99.99th=[ 109] bw ( KiB/s): min= 32, max= 336, per=25.47%, avg=105.19, stdev=66.23, samples=120 iops : min= 8, max= 84, avg=25.95, stdev=16.69, samples=120 lat (msec) : 4=1.46%, 10=30.76%, 20=32.45%, 50=30.31%, 100=4.85% lat (msec) : 250=0.13%, 750=0.03% cpu : usr=0.10%, sys=10.31%, ctx=5394, 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=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=179472: Tue Sep 8 10:47:22 2026 read: IOPS=24, BW=99.7KiB/s (102kB/s)(6028KiB/60440msec) clat (usec): min=2473, max=96648, avg=17011.78, stdev=13473.91 lat (usec): min=2474, max=96649, avg=17012.56, stdev=13473.95 clat percentiles (usec): | 1.00th=[ 3392], 5.00th=[ 4293], 10.00th=[ 4948], 20.00th=[ 6849], | 30.00th=[ 9110], 40.00th=[10814], 50.00th=[12387], 60.00th=[14877], | 70.00th=[18220], 80.00th=[25560], 90.00th=[36963], 95.00th=[44303], | 99.00th=[62653], 99.50th=[76022], 99.90th=[94897], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 23, max= 440, per=25.37%, avg=99.97, stdev=66.59, samples=119 iops : min= 5, max= 110, avg=24.64, stdev=16.79, samples=119 write: IOPS=25, BW=104KiB/s (106kB/s)(6260KiB/60440msec); 0 zone resets clat (msec): min=4, max=720, avg=22.10, stdev=23.55 lat (msec): min=4, max=720, avg=22.10, stdev=23.55 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 34], 90.00th=[ 43], 95.00th=[ 54], | 99.00th=[ 75], 99.50th=[ 90], 99.90th=[ 109], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 31, max= 384, per=25.12%, avg=103.73, stdev=64.82, samples=119 iops : min= 7, max= 96, avg=25.58, stdev=16.34, samples=119 lat (msec) : 4=1.69%, 10=29.62%, 20=33.76%, 50=30.21%, 100=4.59% lat (msec) : 250=0.10%, 750=0.03% cpu : usr=0.09%, sys=10.27%, ctx=5487, 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=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=179475: Tue Sep 8 10:47:22 2026 read: IOPS=24, BW=99.8KiB/s (102kB/s)(6052KiB/60611msec) clat (msec): min=2, max=108, avg=16.77, stdev=13.37 lat (msec): min=2, max=108, avg=16.77, stdev=13.37 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 15], | 70.00th=[ 18], 80.00th=[ 24], 90.00th=[ 36], 95.00th=[ 46], | 99.00th=[ 62], 99.50th=[ 71], 99.90th=[ 91], 99.95th=[ 109], | 99.99th=[ 109] bw ( KiB/s): min= 7, max= 416, per=25.22%, avg=99.36, stdev=65.66, samples=119 iops : min= 1, max= 104, avg=24.49, stdev=16.54, samples=119 write: IOPS=25, BW=103KiB/s (105kB/s)(6236KiB/60611msec); 0 zone resets clat (msec): min=4, max=721, avg=22.47, stdev=23.85 lat (msec): min=4, max=721, avg=22.47, stdev=23.85 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 43], 95.00th=[ 54], | 99.00th=[ 78], 99.50th=[ 89], 99.90th=[ 109], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 31, max= 328, per=24.82%, avg=102.52, stdev=64.76, samples=119 iops : min= 7, max= 82, avg=25.28, stdev=16.33, samples=119 lat (msec) : 4=1.60%, 10=29.56%, 20=33.66%, 50=30.47%, 100=4.52% lat (msec) : 250=0.16%, 750=0.03% cpu : usr=0.11%, sys=10.11%, ctx=5391, 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=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=395KiB/s (404kB/s), 97.8KiB/s-99.8KiB/s (100kB/s-102kB/s), io=23.4MiB (24.6MB), run=60440-60804msec WRITE: bw=413KiB/s (423kB/s), 103KiB/s-105KiB/s (105kB/s-107kB/s), io=24.6MiB (25.7MB), run=60440-60804msec 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=179498: Tue Sep 8 10:47:45 2026 read: IOPS=22, BW=365KiB/s (374kB/s)(5920KiB/16223msec) clat (usec): min=83, max=80725, avg=21665.43, stdev=12653.31 lat (usec): min=84, max=80725, avg=21666.39, stdev=12653.34 clat percentiles (usec): | 1.00th=[ 101], 5.00th=[ 219], 10.00th=[ 8717], 20.00th=[11863], | 30.00th=[14484], 40.00th=[16909], 50.00th=[19792], 60.00th=[22938], | 70.00th=[27132], 80.00th=[30540], 90.00th=[37487], 95.00th=[42730], | 99.00th=[64226], 99.50th=[69731], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 159, max= 636, per=25.38%, avg=359.94, stdev=107.74, samples=32 iops : min= 9, max= 39, avg=21.87, stdev= 6.85, samples=32 write: IOPS=24, BW=393KiB/s (402kB/s)(6368KiB/16223msec); 0 zone resets clat (usec): min=1573, max=89650, avg=20529.83, stdev=14446.52 lat (usec): min=1574, max=89652, avg=20544.34, stdev=14435.79 clat percentiles (usec): | 1.00th=[ 2704], 5.00th=[ 4113], 10.00th=[ 5276], 20.00th=[ 8586], | 30.00th=[11207], 40.00th=[15139], 50.00th=[17433], 60.00th=[19792], | 70.00th=[23462], 80.00th=[30016], 90.00th=[39060], 95.00th=[49546], | 99.00th=[68682], 99.50th=[73925], 99.90th=[89654], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 160, max= 669, per=26.11%, avg=389.62, stdev=111.73, samples=32 iops : min= 10, max= 41, avg=23.75, stdev= 7.01, samples=32 lat (usec) : 100=0.26%, 250=2.73%, 500=0.13%, 750=0.13% lat (msec) : 2=0.39%, 4=1.69%, 10=13.93%, 20=36.20%, 50=40.36% lat (msec) : 100=4.17% cpu : usr=0.09%, sys=27.18%, ctx=2865, 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=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=179500: Tue Sep 8 10:47:45 2026 read: IOPS=21, BW=340KiB/s (348kB/s)(5744KiB/16880msec) clat (usec): min=70, max=66949, avg=23269.79, stdev=11860.02 lat (usec): min=71, max=66949, avg=23276.26, stdev=11860.79 clat percentiles (usec): | 1.00th=[ 120], 5.00th=[ 7242], 10.00th=[10421], 20.00th=[13566], | 30.00th=[17171], 40.00th=[19006], 50.00th=[21890], 60.00th=[24511], | 70.00th=[27132], 80.00th=[32113], 90.00th=[40633], 95.00th=[44303], | 99.00th=[58983], 99.50th=[66847], 99.90th=[66847], 99.95th=[66847], | 99.99th=[66847] bw ( KiB/s): min= 159, max= 605, per=23.74%, avg=336.58, stdev=111.32, samples=33 iops : min= 9, max= 37, avg=20.42, stdev= 7.06, samples=33 write: IOPS=24, BW=388KiB/s (397kB/s)(6544KiB/16880msec); 0 zone resets clat (usec): min=1504, max=75672, avg=20562.41, stdev=13926.35 lat (usec): min=1506, max=75675, avg=20564.07, stdev=13926.42 clat percentiles (usec): | 1.00th=[ 2573], 5.00th=[ 3785], 10.00th=[ 5211], 20.00th=[ 8160], | 30.00th=[12125], 40.00th=[14877], 50.00th=[17957], 60.00th=[20841], | 70.00th=[25035], 80.00th=[30540], 90.00th=[40109], 95.00th=[46924], | 99.00th=[69731], 99.50th=[72877], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 222, max= 576, per=25.23%, avg=376.48, stdev=95.87, samples=33 iops : min= 13, max= 36, avg=22.94, stdev= 6.06, samples=33 lat (usec) : 100=0.26%, 250=1.17%, 500=0.39% lat (msec) : 2=0.39%, 4=2.60%, 10=12.11%, 20=33.72%, 50=46.09% lat (msec) : 100=3.26% cpu : usr=0.11%, sys=26.82%, ctx=3006, 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=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=179502: Tue Sep 8 10:47:45 2026 read: IOPS=23, BW=380KiB/s (390kB/s)(6256KiB/16447msec) clat (usec): min=78, max=77688, avg=23174.96, stdev=12313.59 lat (usec): min=80, max=77689, avg=23175.93, stdev=12313.65 clat percentiles (usec): | 1.00th=[ 100], 5.00th=[ 8094], 10.00th=[10552], 20.00th=[14222], | 30.00th=[16450], 40.00th=[19006], 50.00th=[21365], 60.00th=[24249], | 70.00th=[27919], 80.00th=[32375], 90.00th=[38011], 95.00th=[42730], | 99.00th=[70779], 99.50th=[77071], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 222, max= 569, per=26.81%, avg=380.19, stdev=88.19, samples=32 iops : min= 13, max= 35, avg=23.16, stdev= 5.70, samples=32 write: IOPS=22, BW=367KiB/s (376kB/s)(6032KiB/16447msec); 0 zone resets clat (usec): min=1670, max=75751, avg=19346.99, stdev=12627.60 lat (usec): min=1671, max=75752, avg=19351.32, stdev=12626.25 clat percentiles (usec): | 1.00th=[ 2311], 5.00th=[ 4178], 10.00th=[ 5473], 20.00th=[ 8291], | 30.00th=[11600], 40.00th=[13698], 50.00th=[16581], 60.00th=[19530], | 70.00th=[23987], 80.00th=[28967], 90.00th=[36963], 95.00th=[45876], | 99.00th=[55313], 99.50th=[61080], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 160, max= 573, per=24.20%, avg=361.06, stdev=109.73, samples=32 iops : min= 10, max= 35, avg=21.94, stdev= 6.86, samples=32 lat (usec) : 100=0.39%, 250=1.30%, 500=0.39% lat (msec) : 2=0.52%, 4=1.69%, 10=12.24%, 20=35.68%, 50=44.79% lat (msec) : 100=2.99% cpu : usr=0.09%, sys=27.48%, ctx=2960, 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=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=179504: Tue Sep 8 10:47:45 2026 read: IOPS=22, BW=364KiB/s (373kB/s)(6032KiB/16552msec) clat (usec): min=58, max=72001, avg=21687.80, stdev=11630.87 lat (usec): min=60, max=72001, avg=21688.77, stdev=11630.93 clat percentiles (usec): | 1.00th=[ 96], 5.00th=[ 178], 10.00th=[ 9241], 20.00th=[12780], | 30.00th=[15926], 40.00th=[17695], 50.00th=[20579], 60.00th=[22938], | 70.00th=[26346], 80.00th=[30278], 90.00th=[36439], 95.00th=[43254], | 99.00th=[57934], 99.50th=[58983], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 223, max= 637, per=25.24%, avg=357.91, stdev=97.98, samples=32 iops : min= 13, max= 39, avg=21.75, stdev= 6.20, samples=32 write: IOPS=23, BW=378KiB/s (387kB/s)(6256KiB/16552msec); 0 zone resets clat (usec): min=2036, max=73990, avg=21060.37, stdev=13915.09 lat (usec): min=2040, max=73992, avg=21062.05, stdev=13915.16 clat percentiles (usec): | 1.00th=[ 2769], 5.00th=[ 4555], 10.00th=[ 6783], 20.00th=[ 9110], | 30.00th=[11863], 40.00th=[14222], 50.00th=[17433], 60.00th=[21365], | 70.00th=[26084], 80.00th=[31851], 90.00th=[41681], 95.00th=[46400], | 99.00th=[65799], 99.50th=[68682], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 159, max= 605, per=25.04%, avg=373.56, stdev=95.53, samples=32 iops : min= 9, max= 37, avg=22.75, stdev= 6.11, samples=32 lat (usec) : 100=0.65%, 250=2.47%, 500=0.13%, 750=0.13% lat (msec) : 4=1.56%, 10=12.37%, 20=35.55%, 50=43.88%, 100=3.26% cpu : usr=0.12%, sys=27.26%, ctx=2927, 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=1419KiB/s (1453kB/s), 340KiB/s-380KiB/s (348kB/s-390kB/s), io=23.4MiB (24.5MB), run=16223-16880msec WRITE: bw=1493KiB/s (1529kB/s), 367KiB/s-393KiB/s (376kB/s-402kB/s), io=24.6MiB (25.8MB), run=16223-16880msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179499: Tue Sep 8 10:47:47 2026 read: IOPS=19, BW=319KiB/s (327kB/s)(5920KiB/18554msec) clat (usec): min=4579, max=99930, avg=21559.19, stdev=17513.81 lat (usec): min=4579, max=99931, avg=21559.86, stdev=17513.85 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 33], 90.00th=[ 48], 95.00th=[ 62], | 99.00th=[ 82], 99.50th=[ 92], 99.90th=[ 101], 99.95th=[ 101], | 99.99th=[ 101] bw ( KiB/s): min= 127, max= 864, per=24.11%, avg=308.17, stdev=152.76, samples=36 iops : min= 7, max= 54, avg=18.72, stdev= 9.75, samples=36 write: IOPS=21, BW=343KiB/s (351kB/s)(6368KiB/18554msec); 0 zone resets clat (msec): min=6, max=103, avg=26.37, stdev=16.17 lat (msec): min=6, max=103, avg=26.37, stdev=16.16 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 39], 90.00th=[ 50], 95.00th=[ 56], | 99.00th=[ 80], 99.50th=[ 101], 99.90th=[ 104], 99.95th=[ 104], | 99.99th=[ 104] bw ( KiB/s): min= 95, max= 992, per=25.03%, avg=336.61, stdev=176.22, samples=36 iops : min= 5, max= 62, avg=20.50, stdev=11.21, samples=36 lat (msec) : 10=17.58%, 20=36.85%, 50=36.59%, 100=8.85%, 250=0.13% cpu : usr=0.06%, sys=11.69%, ctx=1568, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179501: Tue Sep 8 10:47:47 2026 read: IOPS=19, BW=308KiB/s (316kB/s)(5744KiB/18620msec) clat (usec): min=3528, max=94170, avg=21944.53, stdev=16777.20 lat (usec): min=3529, max=94170, avg=21945.31, stdev=16777.17 clat percentiles (usec): | 1.00th=[ 4015], 5.00th=[ 5800], 10.00th=[ 6915], 20.00th=[ 8848], | 30.00th=[11207], 40.00th=[13698], 50.00th=[16057], 60.00th=[20317], | 70.00th=[25560], 80.00th=[32637], 90.00th=[44303], 95.00th=[57934], | 99.00th=[80217], 99.50th=[92799], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 95, max= 704, per=23.31%, avg=297.86, stdev=132.97, samples=36 iops : min= 5, max= 44, avg=18.08, stdev= 8.46, samples=36 write: IOPS=21, BW=351KiB/s (360kB/s)(6544KiB/18620msec); 0 zone resets clat (msec): min=6, max=111, avg=26.06, stdev=17.07 lat (msec): min=6, max=111, avg=26.06, stdev=17.07 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 37], 90.00th=[ 52], 95.00th=[ 58], | 99.00th=[ 83], 99.50th=[ 95], 99.90th=[ 111], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 127, max= 1152, per=25.07%, avg=337.22, stdev=189.50, samples=36 iops : min= 7, max= 72, avg=20.56, stdev=12.06, samples=36 lat (msec) : 4=0.26%, 10=17.32%, 20=34.77%, 50=38.67%, 100=8.72% lat (msec) : 250=0.26% cpu : usr=0.11%, sys=11.64%, ctx=1530, 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=179503: Tue Sep 8 10:47:47 2026 read: IOPS=20, BW=334KiB/s (342kB/s)(6256KiB/18731msec) clat (msec): min=3, max=103, avg=22.14, stdev=17.74 lat (msec): min=3, max=103, avg=22.14, stdev=17.74 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 35], 90.00th=[ 49], 95.00th=[ 62], | 99.00th=[ 83], 99.50th=[ 91], 99.90th=[ 104], 99.95th=[ 104], | 99.99th=[ 104] bw ( KiB/s): min= 128, max= 1056, per=25.84%, avg=330.19, stdev=199.06, samples=37 iops : min= 8, max= 66, avg=20.11, stdev=12.59, samples=37 write: IOPS=20, BW=322KiB/s (330kB/s)(6032KiB/18731msec); 0 zone resets clat (msec): min=5, max=109, avg=26.67, stdev=17.78 lat (msec): min=5, max=109, avg=26.67, stdev=17.78 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 31], 80.00th=[ 39], 90.00th=[ 53], 95.00th=[ 64], | 99.00th=[ 84], 99.50th=[ 97], 99.90th=[ 110], 99.95th=[ 110], | 99.99th=[ 110] bw ( KiB/s): min= 95, max= 864, per=23.33%, avg=313.76, stdev=168.21, samples=37 iops : min= 5, max= 54, avg=19.08, stdev=10.74, samples=37 lat (msec) : 4=0.91%, 10=18.10%, 20=35.29%, 50=35.29%, 100=10.16% lat (msec) : 250=0.26% cpu : usr=0.07%, sys=11.42%, ctx=1542, 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=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=179505: Tue Sep 8 10:47:47 2026 read: IOPS=20, BW=324KiB/s (331kB/s)(6032KiB/18637msec) clat (usec): min=3475, max=82520, avg=20261.07, stdev=16608.63 lat (usec): min=3475, max=82521, avg=20261.77, stdev=16608.70 clat percentiles (usec): | 1.00th=[ 4015], 5.00th=[ 5407], 10.00th=[ 6194], 20.00th=[ 7832], | 30.00th=[ 9896], 40.00th=[11731], 50.00th=[14746], 60.00th=[17171], | 70.00th=[21627], 80.00th=[30540], 90.00th=[42730], 95.00th=[59507], | 99.00th=[77071], 99.50th=[79168], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 31, max= 1184, per=25.10%, avg=320.73, stdev=205.37, samples=37 iops : min= 1, max= 74, avg=19.54, stdev=13.04, samples=37 write: IOPS=20, BW=336KiB/s (344kB/s)(6256KiB/18637msec); 0 zone resets clat (usec): min=6969, max=91951, avg=27835.09, stdev=17178.46 lat (usec): min=6970, max=91953, avg=27837.00, stdev=17178.86 clat percentiles (usec): | 1.00th=[ 7898], 5.00th=[ 8848], 10.00th=[ 9896], 20.00th=[13042], | 30.00th=[15401], 40.00th=[18744], 50.00th=[22676], 60.00th=[28181], | 70.00th=[34866], 80.00th=[43254], 90.00th=[51119], 95.00th=[63701], | 99.00th=[73925], 99.50th=[87557], 99.90th=[91751], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 157, max= 832, per=25.01%, avg=336.32, stdev=168.70, samples=37 iops : min= 9, max= 52, avg=20.49, stdev=10.75, samples=37 lat (msec) : 4=0.52%, 10=20.05%, 20=35.03%, 50=35.16%, 100=9.24% cpu : usr=0.11%, sys=11.50%, ctx=1517, 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=1279KiB/s (1309kB/s), 308KiB/s-334KiB/s (316kB/s-342kB/s), io=23.4MiB (24.5MB), run=18554-18731msec WRITE: bw=1345KiB/s (1378kB/s), 322KiB/s-351KiB/s (330kB/s-360kB/s), io=24.6MiB (25.8MB), run=18554-18731msec 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=179513: Tue Sep 8 10:47:57 2026 read: IOPS=2, BW=2361KiB/s (2418kB/s)(7168KiB/3036msec) clat (usec): min=606, max=1078.7k, avg=234484.21, stdev=375653.79 lat (usec): min=607, max=1078.7k, avg=234485.55, stdev=375654.12 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], | 20.00th=[ 60556], 30.00th=[ 93848], 40.00th=[ 93848], | 50.00th=[ 135267], 60.00th=[ 135267], 70.00th=[ 135267], | 80.00th=[ 137364], 90.00th=[1082131], 95.00th=[1082131], | 99.00th=[1082131], 99.50th=[1082131], 99.90th=[1082131], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 1988, max= 8192, per=83.35%, avg=4074.33, stdev=3566.11, samples=3 iops : min= 1, max= 8, avg= 3.33, stdev= 4.04, samples=3 write: IOPS=1, BW=1686KiB/s (1727kB/s)(5120KiB/3036msec); 0 zone resets clat (msec): min=117, max=739, avg=271.42, stdev=267.00 lat (msec): min=117, max=739, avg=271.48, stdev=267.00 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 123], 40.00th=[ 123], 50.00th=[ 131], 60.00th=[ 131], | 70.00th=[ 249], 80.00th=[ 249], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 2043, max= 3976, per=39.29%, avg=2689.00, stdev=1114.58, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=8.33% lat (msec) : 100=16.67%, 250=58.33%, 750=8.33%, 2000=8.33% cpu : usr=0.03%, sys=42.87%, ctx=1346, 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=179514: Tue Sep 8 10:47:57 2026 read: IOPS=0, BW=489KiB/s (501kB/s)(2048KiB/4189msec) clat (msec): min=173, max=239, avg=206.22, stdev=46.55 lat (msec): min=173, max=239, avg=206.22, stdev=46.54 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 241], | 70.00th=[ 241], 80.00th=[ 241], 90.00th=[ 241], 95.00th=[ 241], | 99.00th=[ 241], 99.50th=[ 241], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 1771, max= 1910, per=37.65%, avg=1840.50, stdev=98.29, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2444KiB/s (2503kB/s)(10.0MiB/4189msec); 0 zone resets clat (msec): min=126, max=1188, avg=372.82, stdev=347.78 lat (msec): min=126, max=1188, avg=372.90, stdev=347.78 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 138], | 30.00th=[ 163], 40.00th=[ 197], 50.00th=[ 207], 60.00th=[ 213], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 793], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1910, max= 4096, per=49.94%, avg=3418.00, stdev=1019.66, samples=4 iops : min= 1, max= 4, avg= 2.75, stdev= 1.26, samples=4 lat (msec) : 250=66.67%, 500=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=47.97%, ctx=406, 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=179515: Tue Sep 8 10:47:57 2026 read: IOPS=1, BW=2007KiB/s (2055kB/s)(6144KiB/3061msec) clat (usec): min=501, max=427823, avg=131468.92, stdev=153730.46 lat (usec): min=502, max=427824, avg=131469.78, stdev=153730.75 clat percentiles (usec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 27657], | 30.00th=[ 27657], 40.00th=[ 85459], 50.00th=[ 85459], 60.00th=[115868], | 70.00th=[131597], 80.00th=[131597], 90.00th=[429917], 95.00th=[429917], | 99.00th=[429917], 99.50th=[429917], 99.90th=[429917], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 2043, max= 7953, per=100.00%, avg=4998.00, stdev=4179.00, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=1, BW=2007KiB/s (2055kB/s)(6144KiB/3061msec); 0 zone resets clat (msec): min=118, max=1067, avg=375.84, stdev=346.58 lat (msec): min=118, max=1067, avg=375.92, stdev=346.60 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 232], 50.00th=[ 232], 60.00th=[ 271], | 70.00th=[ 347], 80.00th=[ 347], 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= 1988, max= 3543, per=35.15%, avg=2405.50, stdev=758.82, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 100=8.33%, 250=41.67%, 500=25.00%, 2000=8.33% cpu : usr=0.07%, sys=34.25%, ctx=615, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179516: Tue Sep 8 10:47:57 2026 read: IOPS=1, BW=1368KiB/s (1401kB/s)(5120KiB/3742msec) clat (usec): min=467, max=306654, avg=110450.49, stdev=125457.82 lat (usec): min=468, max=306655, avg=110451.44, stdev=125457.99 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 469], | 30.00th=[ 578], 40.00th=[ 578], 50.00th=[119014], 60.00th=[119014], | 70.00th=[125305], 80.00th=[125305], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 7953, max= 7953, per=100.00%, avg=7953.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1916KiB/s (1962kB/s)(7168KiB/3742msec); 0 zone resets clat (msec): min=121, max=987, avg=447.56, stdev=345.44 lat (msec): min=122, max=987, avg=447.64, stdev=345.45 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 153], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 326], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 877], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1771, max= 4096, per=39.71%, avg=2717.60, stdev=1087.31, samples=5 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=33.33%, 500=33.33%, 1000=16.67% cpu : usr=0.03%, sys=39.13%, ctx=737, 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=4889KiB/s (5006kB/s), 489KiB/s-2361KiB/s (501kB/s-2418kB/s), io=20.0MiB (20.0MB), run=3036-4189msec WRITE: bw=6845KiB/s (7009kB/s), 1686KiB/s-2444KiB/s (1727kB/s-2503kB/s), io=28.0MiB (29.4MB), run=3036-4189msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179518: Tue Sep 8 10:47:57 2026 read: IOPS=1, BW=1651KiB/s (1690kB/s)(7168KiB/4342msec) clat (msec): min=45, max=1046, avg=463.40, stdev=450.00 lat (msec): min=45, max=1046, avg=463.40, stdev=450.00 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 46], 10.00th=[ 46], 20.00th=[ 57], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 288], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 1045], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 2048, max= 4047, per=54.02%, avg=2547.75, stdev=999.50, samples=4 iops : min= 2, max= 3, avg= 2.25, stdev= 0.50, samples=4 write: IOPS=1, BW=1179KiB/s (1207kB/s)(5120KiB/4342msec); 0 zone resets clat (msec): min=57, max=399, avg=215.77, stdev=157.61 lat (msec): min=57, max=399, avg=215.86, stdev=157.61 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 89], 40.00th=[ 89], 50.00th=[ 169], 60.00th=[ 169], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 1882, max= 4096, per=45.27%, avg=2989.00, stdev=1565.53, samples=2 iops : min= 1, max= 4, avg= 2.50, stdev= 2.12, samples=2 lat (msec) : 50=8.33%, 100=25.00%, 250=16.67%, 500=25.00%, 750=8.33% lat (msec) : 2000=16.67% cpu : usr=0.02%, sys=12.49%, ctx=123, 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=179519: Tue Sep 8 10:47:57 2026 read: IOPS=0, BW=474KiB/s (485kB/s)(2048KiB/4320msec) clat (msec): min=94, max=360, avg=227.35, stdev=188.45 lat (msec): min=94, max=360, avg=227.35, stdev=188.45 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 94], | 30.00th=[ 94], 40.00th=[ 94], 50.00th=[ 94], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 1774, max= 2023, per=40.26%, avg=1898.50, stdev=176.07, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2370KiB/s (2427kB/s)(10.0MiB/4320msec); 0 zone resets clat (msec): min=42, max=1466, avg=369.23, stdev=422.96 lat (msec): min=42, max=1466, avg=369.32, stdev=422.96 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 43], 10.00th=[ 43], 20.00th=[ 110], | 30.00th=[ 144], 40.00th=[ 161], 50.00th=[ 215], 60.00th=[ 275], | 70.00th=[ 296], 80.00th=[ 309], 90.00th=[ 676], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 2023, max= 6144, per=60.06%, avg=3965.50, stdev=2237.81, samples=4 iops : min= 1, max= 6, avg= 3.50, stdev= 2.38, samples=4 lat (msec) : 50=8.33%, 100=8.33%, 250=33.33%, 500=33.33%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.02%, sys=17.50%, ctx=356, 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=179520: Tue Sep 8 10:47:57 2026 read: IOPS=1, BW=1418KiB/s (1452kB/s)(6144KiB/4332msec) clat (msec): min=59, max=544, avg=206.94, stdev=176.69 lat (msec): min=59, max=544, avg=206.94, stdev=176.69 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 136], | 70.00th=[ 251], 80.00th=[ 251], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1882, max= 4096, per=56.73%, avg=2675.33, stdev=1233.13, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 write: IOPS=1, BW=1418KiB/s (1452kB/s)(6144KiB/4332msec); 0 zone resets clat (msec): min=43, max=1452, avg=485.35, stdev=538.40 lat (msec): min=43, max=1452, avg=485.69, stdev=538.34 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 44], 10.00th=[ 44], 20.00th=[ 87], | 30.00th=[ 87], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 380], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 1762, max= 2048, per=30.07%, avg=1985.80, stdev=125.58, samples=5 iops : min= 1, max= 2, avg= 1.60, stdev= 0.55, samples=5 lat (msec) : 50=8.33%, 100=16.67%, 250=33.33%, 500=16.67%, 750=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=9.40%, ctx=120, 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=179521: Tue Sep 8 10:47:57 2026 read: IOPS=1, BW=1181KiB/s (1209kB/s)(5120KiB/4336msec) clat (msec): min=44, max=389, avg=148.83, stdev=137.12 lat (msec): min=44, max=389, avg=148.83, stdev=137.12 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 45], 10.00th=[ 45], 20.00th=[ 45], | 30.00th=[ 94], 40.00th=[ 94], 50.00th=[ 108], 60.00th=[ 108], | 70.00th=[ 109], 80.00th=[ 109], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 2023, max= 6144, per=86.59%, avg=4083.50, stdev=2913.99, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1653KiB/s (1693kB/s)(7168KiB/4336msec); 0 zone resets clat (msec): min=58, max=1432, avg=470.72, stdev=472.65 lat (msec): min=59, max=1432, avg=470.81, stdev=472.65 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 132], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 271], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 592], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 1777, max= 2048, per=30.12%, avg=1988.80, stdev=118.89, samples=5 iops : min= 1, max= 2, avg= 1.60, stdev= 0.55, samples=5 lat (msec) : 50=8.33%, 100=16.67%, 250=33.33%, 500=16.67%, 750=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=20.99%, ctx=210, 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=4717KiB/s (4830kB/s), 474KiB/s-1651KiB/s (485kB/s-1690kB/s), io=20.0MiB (20.0MB), run=4320-4342msec WRITE: bw=6603KiB/s (6762kB/s), 1179KiB/s-2370KiB/s (1207kB/s-2427kB/s), io=28.0MiB (29.4MB), run=4320-4342msec 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=179528: Tue Sep 8 10:48:05 2026 read: IOPS=2, BW=9089KiB/s (9307kB/s)(12.0MiB/1352msec) clat (msec): min=326, max=536, avg=445.76, stdev=108.19 lat (msec): min=326, max=536, avg=445.76, stdev=108.19 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 7816, max= 8159, per=86.49%, avg=7987.50, stdev=242.54, 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=52.63%, ctx=2628, 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=179529: Tue Sep 8 10:48:05 2026 read: IOPS=0, BW=2309KiB/s (2364kB/s)(4096KiB/1774msec) clat (nsec): min=349329k, max=349329k, avg=349328911.00, stdev= 0.00 lat (nsec): min=349331k, max=349331k, avg=349330896.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7557, max= 7557, per=81.83%, avg=7557.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4618KiB/s (4729kB/s)(8192KiB/1774msec); 0 zone resets clat (msec): min=616, max=798, avg=707.35, stdev=128.68 lat (msec): min=616, max=798, avg=707.62, stdev=128.70 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 802], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 8159, max= 8159, per=49.03%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=19.40%, ctx=1013, 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=179530: Tue Sep 8 10:48:05 2026 write: IOPS=1, BW=6241KiB/s (6391kB/s)(12.0MiB/1969msec); 0 zone resets clat (msec): min=128, max=1076, avg=644.64, stdev=479.68 lat (msec): min=128, max=1077, avg=644.95, stdev=479.72 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8192, max= 8192, per=49.23%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.15%, sys=13.62%, ctx=62, 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=179531: Tue Sep 8 10:48:05 2026 write: IOPS=2, BW=9.99MiB/s (10.5MB/s)(12.0MiB/1201msec); 0 zone resets clat (msec): min=211, max=597, avg=386.93, stdev=195.43 lat (msec): min=212, max=598, avg=387.24, stdev=195.46 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 5610, max= 5610, per=33.71%, avg=5610.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=26.67%, ctx=91, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=9236KiB/s (9457kB/s), 2309KiB/s-9089KiB/s (2364kB/s-9307kB/s), io=16.0MiB (16.8MB), run=1352-1774msec WRITE: bw=16.3MiB/s (17.0MB/s), 4618KiB/s-9.99MiB/s (4729kB/s-10.5MB/s), io=32.0MiB (33.6MB), run=1201-1969msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179532: Tue Sep 8 10:48:05 2026 read: IOPS=2, BW=8666KiB/s (8874kB/s)(12.0MiB/1418msec) clat (msec): min=265, max=581, avg=468.71, stdev=175.98 lat (msec): min=265, max=581, avg=468.71, stdev=175.98 clat percentiles (msec): | 1.00th=[ 266], 5.00th=[ 266], 10.00th=[ 266], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 584], 80.00th=[ 584], 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= 8110, max= 8110, per=93.26%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=16.94%, ctx=43, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179533: Tue Sep 8 10:48:05 2026 read: IOPS=0, BW=2174KiB/s (2226kB/s)(4096KiB/1884msec) clat (nsec): min=812348k, max=812348k, avg=812348082.00, stdev= 0.00 lat (nsec): min=812352k, max=812352k, avg=812351635.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 810], 5.00th=[ 810], 10.00th=[ 810], 20.00th=[ 810], | 30.00th=[ 810], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 8110, max= 8110, per=93.26%, 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=4348KiB/s (4453kB/s)(8192KiB/1884msec); 0 zone resets clat (msec): min=427, max=616, avg=522.09, stdev=133.31 lat (msec): min=428, max=616, avg=522.41, stdev=133.40 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 8192, max= 8192, per=47.10%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=18.16%, ctx=85, 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=179534: Tue Sep 8 10:48:05 2026 write: IOPS=1, BW=7685KiB/s (7869kB/s)(12.0MiB/1599msec); 0 zone resets clat (msec): min=161, max=733, avg=523.45, stdev=314.86 lat (msec): min=161, max=733, avg=523.73, stdev=314.86 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 8110, max= 8192, per=46.87%, 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=66.67% cpu : usr=0.06%, sys=14.64%, ctx=46, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179535: Tue Sep 8 10:48:05 2026 write: IOPS=1, BW=7232KiB/s (7406kB/s)(12.0MiB/1699msec); 0 zone resets clat (msec): min=127, max=884, avg=554.40, stdev=387.53 lat (msec): min=127, max=884, avg=554.90, stdev=387.66 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 5580, max= 5580, per=32.08%, avg=5580.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=15.55%, ctx=54, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=8696KiB/s (8905kB/s), 2174KiB/s-8666KiB/s (2226kB/s-8874kB/s), io=16.0MiB (16.8MB), run=1418-1884msec WRITE: bw=16.0MiB/s (17.8MB/s), 4348KiB/s-7685KiB/s (4453kB/s-7869kB/s), io=32.0MiB (33.6MB), run=1599-1884msec