== sanity test 398b: DIO and buffer IO race ============== 20:41:18 (1786840878) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.51602 s, 14.3 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=188996: Sat Aug 15 20:42:21 2026 read: IOPS=28, BW=113KiB/s (116kB/s)(5992KiB/52908msec) clat (usec): min=34, max=703347, avg=18855.85, stdev=19923.62 lat (usec): min=34, max=703348, avg=18856.39, stdev=19923.63 clat percentiles (usec): | 1.00th=[ 120], 5.00th=[ 7767], 10.00th=[ 9241], 20.00th=[ 11076], | 30.00th=[ 12911], 40.00th=[ 15139], 50.00th=[ 16909], 60.00th=[ 19268], | 70.00th=[ 21627], 80.00th=[ 24511], 90.00th=[ 29754], 95.00th=[ 34341], | 99.00th=[ 49546], 99.50th=[ 54789], 99.90th=[ 90702], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 13, max= 168, per=24.90%, avg=112.80, stdev=29.24, samples=105 iops : min= 3, max= 42, avg=27.77, stdev= 7.40, samples=105 write: IOPS=29, BW=119KiB/s (122kB/s)(6296KiB/52908msec); 0 zone resets clat (usec): min=814, max=64191, avg=15529.35, stdev=11024.19 lat (usec): min=815, max=64191, avg=15530.05, stdev=11024.19 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 3130], 10.00th=[ 3556], 20.00th=[ 4948], | 30.00th=[ 8029], 40.00th=[10814], 50.00th=[13042], 60.00th=[15926], | 70.00th=[19530], 80.00th=[24249], 90.00th=[31327], 95.00th=[37487], | 99.00th=[48497], 99.50th=[52691], 99.90th=[60556], 99.95th=[64226], | 99.99th=[64226] bw ( KiB/s): min= 47, max= 216, per=25.23%, avg=119.84, stdev=32.67, samples=104 iops : min= 11, max= 54, avg=29.53, stdev= 8.23, samples=104 lat (usec) : 50=0.03%, 100=0.33%, 250=0.59%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.26% lat (msec) : 2=0.62%, 4=6.58%, 10=16.83%, 20=41.73%, 50=32.16% lat (msec) : 100=0.78%, 750=0.03% cpu : usr=0.09%, sys=25.74%, ctx=9825, 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=188997: Sat Aug 15 20:42:21 2026 read: IOPS=28, BW=112KiB/s (115kB/s)(5940KiB/52842msec) clat (usec): min=32, max=91914, avg=18759.97, stdev=9181.76 lat (usec): min=32, max=91914, avg=18760.53, stdev=9181.78 clat percentiles (usec): | 1.00th=[ 125], 5.00th=[ 7767], 10.00th=[ 9372], 20.00th=[11338], | 30.00th=[13304], 40.00th=[15270], 50.00th=[17171], 60.00th=[19530], | 70.00th=[22152], 80.00th=[25297], 90.00th=[30016], 95.00th=[34866], | 99.00th=[49021], 99.50th=[56361], 99.90th=[73925], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 6, max= 168, per=24.75%, avg=112.12, stdev=29.21, samples=105 iops : min= 1, max= 42, avg=27.60, stdev= 7.36, samples=105 write: IOPS=30, BW=120KiB/s (123kB/s)(6348KiB/52842msec); 0 zone resets clat (usec): min=782, max=656914, avg=15607.70, stdev=19535.79 lat (usec): min=782, max=656915, avg=15608.41, stdev=19535.78 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 2966], 10.00th=[ 3425], 20.00th=[ 4555], | 30.00th=[ 7898], 40.00th=[ 10683], 50.00th=[ 12911], 60.00th=[ 15270], | 70.00th=[ 19006], 80.00th=[ 23987], 90.00th=[ 31589], 95.00th=[ 36439], | 99.00th=[ 50070], 99.50th=[ 53740], 99.90th=[ 86508], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 6, max= 264, per=25.18%, avg=119.59, stdev=34.71, samples=105 iops : min= 1, max= 66, avg=29.47, stdev= 8.76, samples=105 lat (usec) : 50=0.07%, 100=0.16%, 250=0.62%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=0.55%, 4=7.55%, 10=15.92%, 20=41.96%, 50=31.97% lat (msec) : 100=0.85%, 750=0.03% cpu : usr=0.07%, sys=26.08%, ctx=9985, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188998: Sat Aug 15 20:42:21 2026 read: IOPS=28, BW=115KiB/s (118kB/s)(6028KiB/52303msec) clat (usec): min=30, max=97058, avg=18419.34, stdev=9619.39 lat (usec): min=31, max=97059, avg=18420.02, stdev=9619.43 clat percentiles (usec): | 1.00th=[ 105], 5.00th=[ 7963], 10.00th=[ 9372], 20.00th=[11207], | 30.00th=[12911], 40.00th=[14615], 50.00th=[16909], 60.00th=[19006], | 70.00th=[21365], 80.00th=[24249], 90.00th=[29492], 95.00th=[36439], | 99.00th=[50594], 99.50th=[57934], 99.90th=[73925], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 48, max= 176, per=25.70%, avg=116.42, stdev=29.91, samples=103 iops : min= 12, max= 44, avg=28.67, stdev= 7.57, samples=103 write: IOPS=29, BW=120KiB/s (123kB/s)(6260KiB/52303msec); 0 zone resets clat (usec): min=819, max=681288, avg=15552.03, stdev=20224.81 lat (usec): min=820, max=681290, avg=15552.82, stdev=20224.80 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 2999], 10.00th=[ 3425], 20.00th=[ 4424], | 30.00th=[ 7570], 40.00th=[ 10421], 50.00th=[ 12911], 60.00th=[ 15270], | 70.00th=[ 19006], 80.00th=[ 23725], 90.00th=[ 30540], 95.00th=[ 35914], | 99.00th=[ 50594], 99.50th=[ 55313], 99.90th=[ 81265], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 55, max= 199, per=25.42%, avg=120.75, stdev=32.79, samples=103 iops : min= 13, max= 49, avg=29.76, stdev= 8.27, samples=103 lat (usec) : 50=0.07%, 100=0.29%, 250=0.88%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.29% lat (msec) : 2=0.62%, 4=8.04%, 10=15.79%, 20=42.25%, 50=30.53% lat (msec) : 100=1.11%, 750=0.03% cpu : usr=0.08%, sys=25.94%, ctx=9743, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188999: Sat Aug 15 20:42:21 2026 read: IOPS=28, BW=115KiB/s (118kB/s)(6052KiB/52407msec) clat (usec): min=88, max=66413, avg=18590.29, stdev=8840.96 lat (usec): min=88, max=66414, avg=18591.39, stdev=8841.49 clat percentiles (usec): | 1.00th=[ 123], 5.00th=[ 8029], 10.00th=[ 9634], 20.00th=[11469], | 30.00th=[13173], 40.00th=[15139], 50.00th=[17433], 60.00th=[19530], | 70.00th=[21627], 80.00th=[24773], 90.00th=[29492], 95.00th=[34866], | 99.00th=[47973], 99.50th=[56886], 99.90th=[60031], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 40, max= 184, per=25.72%, avg=116.50, stdev=25.95, samples=103 iops : min= 10, max= 46, avg=28.69, stdev= 6.54, samples=103 write: IOPS=29, BW=119KiB/s (122kB/s)(6236KiB/52407msec); 0 zone resets clat (usec): min=784, max=674949, avg=15435.18, stdev=19891.28 lat (usec): min=785, max=674950, avg=15436.01, stdev=19891.35 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 3064], 10.00th=[ 3556], 20.00th=[ 4817], | 30.00th=[ 8160], 40.00th=[ 10552], 50.00th=[ 12649], 60.00th=[ 15270], | 70.00th=[ 18744], 80.00th=[ 23462], 90.00th=[ 30016], 95.00th=[ 35390], | 99.00th=[ 48497], 99.50th=[ 53740], 99.90th=[ 72877], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 47, max= 192, per=25.25%, avg=119.96, stdev=30.30, samples=103 iops : min= 11, max= 48, avg=29.56, stdev= 7.61, samples=103 lat (usec) : 100=0.23%, 250=0.81%, 500=0.10%, 1000=0.33% lat (msec) : 2=0.62%, 4=6.64%, 10=15.98%, 20=42.68%, 50=31.84% lat (msec) : 100=0.75%, 750=0.03% cpu : usr=0.08%, sys=26.18%, ctx=9935, 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=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=454KiB/s (465kB/s), 112KiB/s-115KiB/s (115kB/s-118kB/s), io=23.4MiB (24.6MB), run=52303-52908msec WRITE: bw=475KiB/s (487kB/s), 119KiB/s-120KiB/s (122kB/s-123kB/s), io=24.6MiB (25.7MB), run=52303-52908msec rand-rw: (groupid=0, jobs=1): err= 0: pid=189001: Sat Aug 15 20:42:28 2026 read: IOPS=24, BW=99.5KiB/s (102kB/s)(5992KiB/60193msec) clat (msec): min=2, max=709, avg=17.55, stdev=22.38 lat (msec): min=2, max=709, avg=17.55, stdev=22.38 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 36], 95.00th=[ 47], | 99.00th=[ 66], 99.50th=[ 78], 99.90th=[ 95], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 31, max= 336, per=24.84%, avg=98.86, stdev=67.45, samples=118 iops : min= 7, max= 84, avg=24.32, stdev=16.95, samples=118 write: IOPS=26, BW=105KiB/s (107kB/s)(6296KiB/60193msec); 0 zone resets clat (usec): min=4341, max=88393, avg=21433.66, stdev=14497.39 lat (usec): min=4342, max=88394, avg=21434.34, stdev=14497.44 clat percentiles (usec): | 1.00th=[ 5276], 5.00th=[ 6390], 10.00th=[ 7046], 20.00th=[ 8225], | 30.00th=[10290], 40.00th=[13698], 50.00th=[17433], 60.00th=[22152], | 70.00th=[27132], 80.00th=[33162], 90.00th=[41681], 95.00th=[49546], | 99.00th=[65799], 99.50th=[71828], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 23, max= 392, per=24.90%, avg=103.81, stdev=69.02, samples=118 iops : min= 5, max= 98, avg=25.56, stdev=17.34, samples=118 lat (msec) : 4=1.14%, 10=32.16%, 20=29.88%, 50=32.71%, 100=4.07% lat (msec) : 750=0.03% cpu : usr=0.08%, sys=14.12%, ctx=6528, 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=189002: Sat Aug 15 20:42:28 2026 read: IOPS=24, BW=99.1KiB/s (101kB/s)(5940KiB/59964msec) clat (msec): min=3, max=669, avg=17.64, stdev=21.42 lat (msec): min=3, max=669, avg=17.64, stdev=21.42 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 37], 95.00th=[ 45], | 99.00th=[ 63], 99.50th=[ 66], 99.90th=[ 88], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 16, max= 360, per=25.01%, avg=99.54, stdev=67.37, samples=118 iops : min= 4, max= 90, avg=24.49, stdev=16.93, samples=118 write: IOPS=26, BW=106KiB/s (108kB/s)(6348KiB/59964msec); 0 zone resets clat (msec): min=4, max=108, avg=21.18, stdev=14.38 lat (msec): min=4, max=108, avg=21.18, stdev=14.38 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 26], 80.00th=[ 33], 90.00th=[ 41], 95.00th=[ 48], | 99.00th=[ 68], 99.50th=[ 75], 99.90th=[ 108], 99.95th=[ 109], | 99.99th=[ 109] bw ( KiB/s): min= 31, max= 351, per=25.46%, avg=106.19, stdev=68.29, samples=118 iops : min= 7, max= 87, avg=26.15, stdev=17.17, samples=118 lat (msec) : 4=0.46%, 10=30.73%, 20=32.26%, 50=33.20%, 100=3.26% lat (msec) : 250=0.07%, 750=0.03% cpu : usr=0.08%, sys=14.37%, ctx=6515, 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=189003: Sat Aug 15 20:42:28 2026 read: IOPS=25, BW=100KiB/s (103kB/s)(6028KiB/59998msec) clat (usec): min=3033, max=92962, avg=17027.46, stdev=13108.32 lat (usec): min=3033, max=92963, avg=17028.08, stdev=13108.33 clat percentiles (usec): | 1.00th=[ 3949], 5.00th=[ 4686], 10.00th=[ 5145], 20.00th=[ 6194], | 30.00th=[ 8455], 40.00th=[10814], 50.00th=[12911], 60.00th=[15139], | 70.00th=[19792], 80.00th=[25035], 90.00th=[36963], 95.00th=[43779], | 99.00th=[60556], 99.50th=[65799], 99.90th=[88605], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 15, max= 367, per=25.32%, avg=100.76, stdev=69.59, samples=118 iops : min= 3, max= 91, avg=24.80, stdev=17.49, samples=118 write: IOPS=26, BW=104KiB/s (107kB/s)(6260KiB/59998msec); 0 zone resets clat (msec): min=4, max=673, avg=21.85, stdev=21.94 lat (msec): min=4, max=673, avg=21.85, stdev=21.94 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 33], 90.00th=[ 42], 95.00th=[ 49], | 99.00th=[ 67], 99.50th=[ 74], 99.90th=[ 110], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 31, max= 328, per=25.07%, avg=104.56, stdev=65.62, samples=118 iops : min= 7, max= 82, avg=25.75, stdev=16.49, samples=118 lat (msec) : 4=0.52%, 10=30.24%, 20=32.06%, 50=33.63%, 100=3.45% lat (msec) : 250=0.07%, 750=0.03% cpu : usr=0.06%, sys=14.31%, ctx=6577, 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=189004: Sat Aug 15 20:42:28 2026 read: IOPS=25, BW=101KiB/s (104kB/s)(6052KiB/59668msec) clat (usec): min=2889, max=93985, avg=17324.66, stdev=13059.38 lat (usec): min=2890, max=93998, avg=17325.25, stdev=13059.46 clat percentiles (usec): | 1.00th=[ 4015], 5.00th=[ 4883], 10.00th=[ 5276], 20.00th=[ 6325], | 30.00th=[ 8848], 40.00th=[11076], 50.00th=[13304], 60.00th=[15926], | 70.00th=[20055], 80.00th=[26084], 90.00th=[35914], 95.00th=[43779], | 99.00th=[61080], 99.50th=[66323], 99.90th=[89654], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 23, max= 335, per=25.48%, avg=101.41, stdev=65.92, samples=117 iops : min= 5, max= 83, avg=24.96, stdev=16.56, samples=117 write: IOPS=26, BW=105KiB/s (107kB/s)(6236KiB/59668msec); 0 zone resets clat (msec): min=4, max=667, avg=21.36, stdev=21.59 lat (msec): min=4, max=667, avg=21.36, stdev=21.59 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 26], 80.00th=[ 32], 90.00th=[ 40], 95.00th=[ 47], | 99.00th=[ 72], 99.50th=[ 80], 99.90th=[ 94], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 40, max= 360, per=25.11%, avg=104.70, stdev=68.20, samples=117 iops : min= 10, max= 90, avg=25.78, stdev=17.14, samples=117 lat (msec) : 4=0.46%, 10=30.86%, 20=31.41%, 50=34.02%, 100=3.22% lat (msec) : 750=0.03% cpu : usr=0.09%, sys=14.54%, ctx=6548, 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=399KiB/s (408kB/s), 99.1KiB/s-101KiB/s (101kB/s-104kB/s), io=23.4MiB (24.6MB), run=59668-60193msec WRITE: bw=418KiB/s (428kB/s), 104KiB/s-106KiB/s (107kB/s-108kB/s), io=24.6MiB (25.7MB), run=59668-60193msec 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=189034: Sat Aug 15 20:42:53 2026 read: IOPS=18, BW=304KiB/s (311kB/s)(5920KiB/19502msec) clat (usec): min=70, max=78722, avg=25975.26, stdev=14992.79 lat (usec): min=71, max=78722, avg=25975.76, stdev=14992.78 clat percentiles (usec): | 1.00th=[ 96], 5.00th=[ 180], 10.00th=[10028], 20.00th=[14222], | 30.00th=[17433], 40.00th=[21627], 50.00th=[24249], 60.00th=[27395], | 70.00th=[31327], 80.00th=[36963], 90.00th=[45876], 95.00th=[53216], | 99.00th=[72877], 99.50th=[78119], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 159, max= 640, per=25.01%, avg=301.39, stdev=102.07, samples=38 iops : min= 9, max= 40, avg=18.32, stdev= 6.52, samples=38 write: IOPS=20, BW=327KiB/s (334kB/s)(6368KiB/19502msec); 0 zone resets clat (usec): min=1197, max=81024, avg=24505.26, stdev=15391.68 lat (usec): min=1198, max=81025, avg=24506.33, stdev=15391.56 clat percentiles (usec): | 1.00th=[ 3720], 5.00th=[ 5342], 10.00th=[ 6521], 20.00th=[10945], | 30.00th=[14746], 40.00th=[17957], 50.00th=[21890], 60.00th=[25822], | 70.00th=[29754], 80.00th=[35390], 90.00th=[45351], 95.00th=[54789], | 99.00th=[72877], 99.50th=[80217], 99.90th=[81265], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 31, max= 576, per=25.83%, avg=327.58, stdev=132.97, samples=38 iops : min= 1, max= 36, avg=19.95, stdev= 8.44, samples=38 lat (usec) : 100=0.65%, 250=2.60%, 500=0.26%, 1000=0.13% lat (msec) : 2=0.13%, 4=0.52%, 10=10.03%, 20=26.69%, 50=52.60% lat (msec) : 100=6.38% cpu : usr=0.05%, sys=27.62%, ctx=3244, 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=189035: Sat Aug 15 20:42:53 2026 read: IOPS=18, BW=289KiB/s (296kB/s)(5744KiB/19866msec) clat (usec): min=89, max=74839, avg=26499.80, stdev=13862.11 lat (usec): min=90, max=74839, avg=26500.31, stdev=13862.14 clat percentiles (usec): | 1.00th=[ 100], 5.00th=[ 1090], 10.00th=[11600], 20.00th=[15795], | 30.00th=[18744], 40.00th=[21365], 50.00th=[24773], 60.00th=[28181], | 70.00th=[32375], 80.00th=[38011], 90.00th=[43779], 95.00th=[52167], | 99.00th=[65274], 99.50th=[74974], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 82, max= 544, per=23.87%, avg=287.59, stdev=117.81, samples=39 iops : min= 5, max= 34, avg=17.46, stdev= 7.43, samples=39 write: IOPS=20, BW=329KiB/s (337kB/s)(6544KiB/19866msec); 0 zone resets clat (usec): min=1134, max=89598, avg=24980.01, stdev=16642.64 lat (usec): min=1135, max=89599, avg=24981.14, stdev=16642.87 clat percentiles (usec): | 1.00th=[ 3425], 5.00th=[ 5014], 10.00th=[ 6456], 20.00th=[10683], | 30.00th=[14091], 40.00th=[16909], 50.00th=[20841], 60.00th=[26346], | 70.00th=[32375], 80.00th=[37487], 90.00th=[47973], 95.00th=[55313], | 99.00th=[77071], 99.50th=[82314], 99.90th=[89654], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 127, max= 672, per=25.59%, avg=324.44, stdev=125.60, samples=39 iops : min= 7, max= 42, avg=19.74, stdev= 7.97, samples=39 lat (usec) : 100=0.52%, 250=1.69% lat (msec) : 2=0.26%, 4=1.04%, 10=9.77%, 20=28.91%, 50=50.52% lat (msec) : 100=7.29% cpu : usr=0.09%, sys=27.76%, ctx=3403, 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=189036: Sat Aug 15 20:42:53 2026 read: IOPS=19, BW=319KiB/s (326kB/s)(6256KiB/19637msec) clat (usec): min=106, max=81378, avg=26111.01, stdev=13317.38 lat (usec): min=107, max=81378, avg=26111.68, stdev=13317.42 clat percentiles (usec): | 1.00th=[ 126], 5.00th=[ 9765], 10.00th=[11994], 20.00th=[15401], | 30.00th=[18744], 40.00th=[21365], 50.00th=[24249], 60.00th=[27132], | 70.00th=[30278], 80.00th=[34866], 90.00th=[45876], 95.00th=[51643], | 99.00th=[65274], 99.50th=[69731], 99.90th=[81265], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 126, max= 704, per=26.06%, avg=314.08, stdev=128.35, samples=38 iops : min= 7, max= 44, avg=19.11, stdev= 8.19, samples=38 write: IOPS=19, BW=307KiB/s (315kB/s)(6032KiB/19637msec); 0 zone resets clat (usec): min=1658, max=96213, avg=24911.31, stdev=16708.18 lat (usec): min=1659, max=96213, avg=24912.32, stdev=16708.23 clat percentiles (usec): | 1.00th=[ 2835], 5.00th=[ 5145], 10.00th=[ 6194], 20.00th=[10290], | 30.00th=[14353], 40.00th=[16909], 50.00th=[21103], 60.00th=[25822], | 70.00th=[31589], 80.00th=[37487], 90.00th=[47449], 95.00th=[56886], | 99.00th=[77071], 99.50th=[87557], 99.90th=[95945], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 127, max= 638, per=23.28%, avg=295.18, stdev=114.06, samples=38 iops : min= 7, max= 39, avg=17.92, stdev= 7.13, samples=38 lat (usec) : 250=1.43%, 500=0.13% lat (msec) : 2=0.26%, 4=0.78%, 10=9.24%, 20=29.43%, 50=51.04% lat (msec) : 100=7.68% cpu : usr=0.05%, sys=27.92%, ctx=3223, 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=189037: Sat Aug 15 20:42:53 2026 read: IOPS=19, BW=316KiB/s (324kB/s)(6032KiB/19062msec) clat (usec): min=97, max=78625, avg=26456.03, stdev=13675.17 lat (usec): min=97, max=78625, avg=26457.97, stdev=13675.19 clat percentiles (usec): | 1.00th=[ 121], 5.00th=[ 498], 10.00th=[11731], 20.00th=[15401], | 30.00th=[18744], 40.00th=[21890], 50.00th=[25035], 60.00th=[28181], | 70.00th=[32113], 80.00th=[36963], 90.00th=[43779], 95.00th=[51643], | 99.00th=[69731], 99.50th=[77071], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 160, max= 576, per=25.90%, avg=312.14, stdev=103.42, samples=37 iops : min= 10, max= 36, avg=18.97, stdev= 6.61, samples=37 write: IOPS=20, BW=328KiB/s (336kB/s)(6256KiB/19062msec); 0 zone resets clat (usec): min=2983, max=78905, avg=22913.46, stdev=14404.08 lat (usec): min=2984, max=78906, avg=22914.51, stdev=14404.08 clat percentiles (usec): | 1.00th=[ 3294], 5.00th=[ 5080], 10.00th=[ 6063], 20.00th=[10028], | 30.00th=[13304], 40.00th=[16450], 50.00th=[20841], 60.00th=[23725], | 70.00th=[28705], 80.00th=[34866], 90.00th=[42206], 95.00th=[50070], | 99.00th=[69731], 99.50th=[76022], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 160, max= 640, per=25.82%, avg=327.35, stdev=128.94, samples=37 iops : min= 10, max= 40, avg=19.92, stdev= 8.16, samples=37 lat (usec) : 100=0.13%, 250=1.95%, 500=0.39% lat (msec) : 4=0.65%, 10=9.77%, 20=28.65%, 50=53.26%, 100=5.21% cpu : usr=0.05%, sys=28.95%, ctx=3379, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1206KiB/s (1235kB/s), 289KiB/s-319KiB/s (296kB/s-326kB/s), io=23.4MiB (24.5MB), run=19062-19866msec WRITE: bw=1268KiB/s (1299kB/s), 307KiB/s-329KiB/s (315kB/s-337kB/s), io=24.6MiB (25.8MB), run=19062-19866msec rand-rw: (groupid=0, jobs=1): err= 0: pid=189030: Sat Aug 15 20:42:55 2026 read: IOPS=17, BW=281KiB/s (288kB/s)(5920KiB/21046msec) clat (usec): min=3871, max=92764, avg=22944.54, stdev=15265.04 lat (usec): min=3871, max=92765, avg=22945.34, stdev=15264.86 clat percentiles (usec): | 1.00th=[ 4490], 5.00th=[ 6128], 10.00th=[ 6718], 20.00th=[10290], | 30.00th=[13698], 40.00th=[16712], 50.00th=[19792], 60.00th=[22414], | 70.00th=[26870], 80.00th=[32375], 90.00th=[41681], 95.00th=[52167], | 99.00th=[77071], 99.50th=[86508], 99.90th=[92799], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 95, max= 928, per=23.50%, avg=266.78, stdev=152.69, samples=41 iops : min= 5, max= 58, avg=16.15, stdev= 9.68, samples=41 write: IOPS=18, BW=303KiB/s (310kB/s)(6368KiB/21046msec); 0 zone resets clat (msec): min=5, max=127, avg=31.23, stdev=19.23 lat (msec): min=5, max=127, avg=31.23, stdev=19.23 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 14], | 30.00th=[ 19], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 39], 80.00th=[ 46], 90.00th=[ 58], 95.00th=[ 69], | 99.00th=[ 87], 99.50th=[ 91], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] bw ( KiB/s): min= 63, max= 928, per=24.19%, avg=288.78, stdev=145.80, samples=41 iops : min= 3, max= 58, avg=17.54, stdev= 9.28, samples=41 lat (msec) : 4=0.13%, 10=16.15%, 20=26.17%, 50=45.70%, 100=11.72% lat (msec) : 250=0.13% cpu : usr=0.05%, sys=15.24%, ctx=2068, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=189031: Sat Aug 15 20:42:55 2026 read: IOPS=17, BW=272KiB/s (279kB/s)(5744KiB/21103msec) clat (usec): min=3182, max=90607, avg=23989.23, stdev=16183.90 lat (usec): min=3183, max=90607, avg=23989.77, stdev=16183.92 clat percentiles (usec): | 1.00th=[ 3490], 5.00th=[ 5997], 10.00th=[ 7242], 20.00th=[10421], | 30.00th=[14484], 40.00th=[16450], 50.00th=[20317], 60.00th=[23462], | 70.00th=[28705], 80.00th=[34866], 90.00th=[46924], 95.00th=[57410], | 99.00th=[81265], 99.50th=[89654], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 64, max= 864, per=22.77%, avg=258.46, stdev=134.62, samples=41 iops : min= 4, max= 54, avg=15.63, stdev= 8.52, samples=41 write: IOPS=19, BW=310KiB/s (318kB/s)(6544KiB/21103msec); 0 zone resets clat (usec): min=4763, max=89813, avg=30378.35, stdev=19372.24 lat (usec): min=4764, max=89814, avg=30379.53, stdev=19372.28 clat percentiles (usec): | 1.00th=[ 5669], 5.00th=[ 7570], 10.00th=[ 8848], 20.00th=[11600], | 30.00th=[16909], 40.00th=[21890], 50.00th=[25822], 60.00th=[30802], | 70.00th=[39060], 80.00th=[46400], 90.00th=[59507], 95.00th=[68682], | 99.00th=[82314], 99.50th=[85459], 99.90th=[89654], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 159, max= 960, per=24.27%, avg=289.80, stdev=167.07, samples=41 iops : min= 9, max= 60, avg=17.59, stdev=10.61, samples=41 lat (msec) : 4=0.65%, 10=14.32%, 20=27.47%, 50=44.53%, 100=13.02% cpu : usr=0.06%, sys=15.40%, ctx=2017, 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=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=189032: Sat Aug 15 20:42:55 2026 read: IOPS=18, BW=297KiB/s (304kB/s)(6256KiB/21083msec) clat (usec): min=3761, max=91934, avg=24007.54, stdev=16994.19 lat (usec): min=3762, max=91934, avg=24008.20, stdev=16994.22 clat percentiles (usec): | 1.00th=[ 5014], 5.00th=[ 6259], 10.00th=[ 6980], 20.00th=[ 9503], | 30.00th=[13042], 40.00th=[16188], 50.00th=[18744], 60.00th=[22676], | 70.00th=[28181], 80.00th=[35390], 90.00th=[50070], 95.00th=[60556], | 99.00th=[77071], 99.50th=[81265], 99.90th=[91751], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 127, max= 1248, per=24.89%, avg=282.49, stdev=186.84, samples=41 iops : min= 7, max= 78, avg=17.15, stdev=11.84, samples=41 write: IOPS=17, BW=286KiB/s (293kB/s)(6032KiB/21083msec); 0 zone resets clat (msec): min=5, max=122, avg=30.96, stdev=18.30 lat (msec): min=5, max=122, avg=30.96, stdev=18.30 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 13], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 41], 80.00th=[ 47], 90.00th=[ 55], 95.00th=[ 65], | 99.00th=[ 78], 99.50th=[ 92], 99.90th=[ 123], 99.95th=[ 123], | 99.99th=[ 123] bw ( KiB/s): min= 127, max= 736, per=22.41%, avg=267.54, stdev=114.73, samples=41 iops : min= 7, max= 46, avg=16.20, stdev= 7.37, samples=41 lat (msec) : 4=0.13%, 10=17.58%, 20=24.74%, 50=44.40%, 100=13.02% lat (msec) : 250=0.13% cpu : usr=0.05%, sys=15.22%, ctx=2108, 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=189033: Sat Aug 15 20:42:55 2026 read: IOPS=17, BW=287KiB/s (294kB/s)(6032KiB/20995msec) clat (usec): min=4106, max=94852, avg=24311.42, stdev=16674.90 lat (usec): min=4106, max=94852, avg=24312.40, stdev=16674.74 clat percentiles (usec): | 1.00th=[ 5145], 5.00th=[ 6194], 10.00th=[ 7177], 20.00th=[10683], | 30.00th=[13304], 40.00th=[16319], 50.00th=[19268], 60.00th=[23200], | 70.00th=[28443], 80.00th=[37487], 90.00th=[48497], 95.00th=[59507], | 99.00th=[81265], 99.50th=[88605], 99.90th=[94897], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 63, max= 896, per=24.27%, avg=275.51, stdev=156.12, samples=41 iops : min= 3, max= 56, avg=16.71, stdev= 9.94, samples=41 write: IOPS=18, BW=298KiB/s (305kB/s)(6256KiB/20995msec); 0 zone resets clat (msec): min=6, max=131, avg=30.13, stdev=18.42 lat (msec): min=6, max=131, avg=30.13, stdev=18.42 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 37], 80.00th=[ 45], 90.00th=[ 58], 95.00th=[ 65], | 99.00th=[ 81], 99.50th=[ 107], 99.90th=[ 132], 99.95th=[ 132], | 99.99th=[ 132] bw ( KiB/s): min= 95, max= 896, per=23.95%, avg=286.00, stdev=138.40, samples=41 iops : min= 5, max= 56, avg=17.37, stdev= 8.80, samples=41 lat (msec) : 10=14.19%, 20=30.08%, 50=43.75%, 100=11.72%, 250=0.26% cpu : usr=0.05%, sys=15.36%, ctx=2088, 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=1135KiB/s (1162kB/s), 272KiB/s-297KiB/s (279kB/s-304kB/s), io=23.4MiB (24.5MB), run=20995-21103msec WRITE: bw=1194KiB/s (1223kB/s), 286KiB/s-310KiB/s (293kB/s-318kB/s), io=24.6MiB (25.8MB), run=20995-21103msec 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=189045: Sat Aug 15 20:43:04 2026 read: IOPS=2, BW=2612KiB/s (2675kB/s)(7168KiB/2744msec) clat (msec): min=47, max=683, avg=226.36, stdev=225.04 lat (msec): min=47, max=683, avg=226.36, stdev=225.04 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 48], 10.00th=[ 48], 20.00th=[ 74], | 30.00th=[ 91], 40.00th=[ 91], 50.00th=[ 121], 60.00th=[ 241], | 70.00th=[ 241], 80.00th=[ 330], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1875, max= 5145, per=68.47%, avg=3705.33, stdev=1669.64, samples=3 iops : min= 1, max= 5, avg= 3.33, stdev= 2.08, samples=3 write: IOPS=1, BW=1866KiB/s (1911kB/s)(5120KiB/2744msec); 0 zone resets clat (msec): min=128, max=382, avg=222.97, stdev=102.86 lat (msec): min=128, max=382, avg=223.02, stdev=102.86 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 218], 60.00th=[ 218], | 70.00th=[ 249], 80.00th=[ 249], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 1875, max= 6095, per=44.05%, avg=3337.67, stdev=2389.40, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 50=8.33%, 100=16.67%, 250=50.00%, 500=16.67%, 750=8.33% cpu : usr=0.04%, sys=13.56%, ctx=122, 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=189046: Sat Aug 15 20:43:04 2026 read: IOPS=0, BW=542KiB/s (555kB/s)(2048KiB/3782msec) clat (msec): min=56, max=477, avg=266.66, stdev=297.71 lat (msec): min=56, max=477, avg=266.66, stdev=297.71 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 57], 40.00th=[ 57], 50.00th=[ 57], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 1715, max= 2007, per=34.39%, avg=1861.00, stdev=206.48, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2708KiB/s (2773kB/s)(10.0MiB/3782msec); 0 zone resets clat (msec): min=49, max=1330, avg=321.84, stdev=375.94 lat (msec): min=49, max=1330, avg=321.90, stdev=375.94 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 50], 10.00th=[ 50], 20.00th=[ 52], | 30.00th=[ 102], 40.00th=[ 126], 50.00th=[ 226], 60.00th=[ 271], | 70.00th=[ 300], 80.00th=[ 376], 90.00th=[ 393], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 1715, max= 6144, per=47.17%, avg=3574.40, stdev=2342.07, samples=5 iops : min= 1, max= 6, avg= 2.80, stdev= 2.49, samples=5 lat (msec) : 50=8.33%, 100=16.67%, 250=25.00%, 500=41.67%, 2000=8.33% cpu : usr=0.05%, sys=19.23%, ctx=177, 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=189047: Sat Aug 15 20:43:04 2026 read: IOPS=1, BW=1624KiB/s (1663kB/s)(6144KiB/3784msec) clat (msec): min=56, max=529, avg=258.22, stdev=197.65 lat (msec): min=56, max=529, avg=258.22, stdev=197.65 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 59], | 30.00th=[ 59], 40.00th=[ 148], 50.00th=[ 148], 60.00th=[ 372], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 1875, max= 2048, per=36.99%, avg=2001.80, stdev=72.85, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 write: IOPS=1, BW=1624KiB/s (1663kB/s)(6144KiB/3784msec); 0 zone resets clat (msec): min=45, max=1395, avg=370.81, stdev=518.14 lat (msec): min=45, max=1395, avg=370.89, stdev=518.13 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 46], 10.00th=[ 46], 20.00th=[ 63], | 30.00th=[ 63], 40.00th=[ 78], 50.00th=[ 78], 60.00th=[ 309], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 2031, max= 4096, per=38.18%, avg=2892.75, stdev=1025.88, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 lat (msec) : 50=8.33%, 100=33.33%, 250=8.33%, 500=33.33%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=13.72%, ctx=153, 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=189048: Sat Aug 15 20:43:04 2026 read: IOPS=1, BW=1589KiB/s (1627kB/s)(5120KiB/3223msec) clat (msec): min=66, max=116, avg=84.58, stdev=21.77 lat (msec): min=66, max=116, avg=84.58, stdev=21.77 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 67], | 30.00th=[ 67], 40.00th=[ 67], 50.00th=[ 77], 60.00th=[ 77], | 70.00th=[ 97], 80.00th=[ 97], 90.00th=[ 117], 95.00th=[ 117], | 99.00th=[ 117], 99.50th=[ 117], 99.90th=[ 117], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 1875, max= 6095, per=73.63%, avg=3985.00, stdev=2983.99, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2224KiB/s (2277kB/s)(7168KiB/3223msec); 0 zone resets clat (msec): min=59, max=1321, avg=389.01, stdev=442.93 lat (msec): min=60, max=1321, avg=389.07, stdev=442.96 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 64], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 251], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 550], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 1706, max= 6023, per=45.66%, avg=3460.00, stdev=2000.24, samples=4 iops : min= 1, max= 5, avg= 2.75, stdev= 1.71, samples=4 lat (msec) : 100=50.00%, 250=16.67%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=15.30%, ctx=250, 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=5412KiB/s (5542kB/s), 542KiB/s-2612KiB/s (555kB/s-2675kB/s), io=20.0MiB (20.0MB), run=2744-3784msec WRITE: bw=7577KiB/s (7759kB/s), 1624KiB/s-2708KiB/s (1663kB/s-2773kB/s), io=28.0MiB (29.4MB), run=2744-3784msec rand-rw: (groupid=0, jobs=1): err= 0: pid=189050: Sat Aug 15 20:43:04 2026 read: IOPS=2, BW=2199KiB/s (2252kB/s)(7168KiB/3259msec) clat (msec): min=97, max=1056, avg=275.29, stdev=346.24 lat (msec): min=97, max=1056, avg=275.29, stdev=346.24 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 123], | 30.00th=[ 134], 40.00th=[ 134], 50.00th=[ 146], 60.00th=[ 169], | 70.00th=[ 169], 80.00th=[ 205], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 2027, max= 4096, per=50.70%, avg=2865.75, stdev=1013.23, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=1, BW=1571KiB/s (1609kB/s)(5120KiB/3259msec); 0 zone resets clat (msec): min=137, max=471, avg=263.22, stdev=127.76 lat (msec): min=137, max=471, avg=263.27, stdev=127.76 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 253], 60.00th=[ 253], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 2043, max= 4055, per=32.21%, avg=2548.50, stdev=1004.34, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (msec) : 100=8.33%, 250=58.33%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=46.87%, ctx=1189, 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=189051: Sat Aug 15 20:43:04 2026 read: IOPS=0, BW=565KiB/s (579kB/s)(2048KiB/3623msec) clat (usec): min=532, max=116325, avg=58428.81, stdev=81878.04 lat (usec): min=532, max=116326, avg=58429.77, stdev=81878.51 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 529], | 30.00th=[ 529], 40.00th=[ 529], 50.00th=[ 529], 60.00th=[115868], | 70.00th=[115868], 80.00th=[115868], 90.00th=[115868], 95.00th=[115868], | 99.00th=[115868], 99.50th=[115868], 99.90th=[115868], 99.95th=[115868], | 99.99th=[115868] bw ( KiB/s): min= 1646, max= 2027, per=32.49%, avg=1836.50, stdev=269.41, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2826KiB/s (2894kB/s)(10.0MiB/3623msec); 0 zone resets clat (msec): min=68, max=1428, avg=339.70, stdev=395.62 lat (msec): min=68, max=1428, avg=339.76, stdev=395.62 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 69], | 30.00th=[ 127], 40.00th=[ 226], 50.00th=[ 257], 60.00th=[ 257], | 70.00th=[ 288], 80.00th=[ 313], 90.00th=[ 368], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 1646, max= 6144, per=50.43%, avg=3990.25, stdev=2491.80, samples=4 iops : min= 1, max= 6, avg= 3.50, stdev= 2.89, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, 2000=8.33% cpu : usr=0.00%, sys=36.64%, ctx=386, 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=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=189052: Sat Aug 15 20:43:04 2026 read: IOPS=1, BW=1724KiB/s (1765kB/s)(6144KiB/3564msec) clat (usec): min=498, max=228804, avg=100625.32, stdev=110729.86 lat (usec): min=499, max=228805, avg=100626.17, stdev=110729.63 clat percentiles (usec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 553], | 30.00th=[ 553], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[181404], | 70.00th=[191890], 80.00th=[191890], 90.00th=[229639], 95.00th=[229639], | 99.00th=[229639], 99.50th=[229639], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 2048, max= 4087, per=60.10%, avg=3396.67, stdev=1168.09, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1724KiB/s (1765kB/s)(6144KiB/3564msec); 0 zone resets clat (msec): min=153, max=1191, avg=466.21, stdev=370.37 lat (msec): min=154, max=1191, avg=466.27, stdev=370.38 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 342], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 2027, max= 3303, per=29.76%, avg=2355.25, stdev=631.90, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=33.33%, 500=33.33%, 2000=8.33% cpu : usr=0.06%, sys=33.20%, ctx=377, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=189053: Sat Aug 15 20:43:04 2026 read: IOPS=1, BW=1492KiB/s (1528kB/s)(5120KiB/3432msec) clat (usec): min=400, max=187410, avg=72757.05, stdev=99072.74 lat (usec): min=401, max=187411, avg=72757.62, stdev=99072.65 clat percentiles (usec): | 1.00th=[ 400], 5.00th=[ 400], 10.00th=[ 400], 20.00th=[ 400], | 30.00th=[ 441], 40.00th=[ 441], 50.00th=[ 586], 60.00th=[ 586], | 70.00th=[175113], 80.00th=[175113], 90.00th=[187696], 95.00th=[187696], | 99.00th=[187696], 99.50th=[187696], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2089KiB/s (2139kB/s)(7168KiB/3432msec); 0 zone resets clat (msec): min=177, max=1196, avg=413.85, stdev=352.95 lat (msec): min=177, max=1196, avg=413.91, stdev=352.95 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 215], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 414], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1630, max= 4087, per=30.94%, avg=2448.00, stdev=1109.46, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 500=16.67%, 750=8.33% lat (msec) : 250=33.33%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=35.79%, ctx=367, 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=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=5653KiB/s (5788kB/s), 565KiB/s-2199KiB/s (579kB/s-2252kB/s), io=20.0MiB (20.0MB), run=3259-3623msec WRITE: bw=7914KiB/s (8104kB/s), 1571KiB/s-2826KiB/s (1609kB/s-2894kB/s), io=28.0MiB (29.4MB), run=3259-3623msec 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=189060: Sat Aug 15 20:43:13 2026 read: IOPS=1, BW=7562KiB/s (7743kB/s)(12.0MiB/1625msec) clat (msec): min=325, max=795, avg=527.11, stdev=241.76 lat (msec): min=325, max=795, avg=527.11, stdev=241.76 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 5769, max= 8192, per=82.44%, avg=6980.50, stdev=1713.32, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=18.66%, ctx=234, 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=189062: Sat Aug 15 20:43:13 2026 read: IOPS=0, BW=2117KiB/s (2168kB/s)(4096KiB/1935msec) clat (nsec): min=523827k, max=523827k, avg=523826923.00, stdev= 0.00 lat (nsec): min=523829k, max=523829k, avg=523829277.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 5769, max= 5769, per=68.14%, avg=5769.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4234KiB/s (4335kB/s)(8192KiB/1935msec); 0 zone resets clat (msec): min=535, max=772, avg=653.99, stdev=167.06 lat (msec): min=536, max=772, avg=654.26, stdev=167.01 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 535], 10.00th=[ 535], 20.00th=[ 535], | 30.00th=[ 535], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 776], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 8192, max= 8192, per=48.38%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.05%, sys=13.34%, ctx=67, 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=189064: Sat Aug 15 20:43:13 2026 write: IOPS=1, BW=6812KiB/s (6975kB/s)(12.0MiB/1804msec); 0 zone resets clat (msec): min=185, max=876, avg=580.81, stdev=356.17 lat (msec): min=185, max=883, avg=583.54, stdev=359.25 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 8192, max= 8192, per=48.38%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.11%, sys=19.80%, ctx=73, 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=189066: Sat Aug 15 20:43:13 2026 write: IOPS=1, BW=6849KiB/s (7014kB/s)(12.0MiB/1794msec); 0 zone resets clat (msec): min=367, max=923, avg=572.75, stdev=304.82 lat (msec): min=368, max=923, avg=573.28, stdev=304.58 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 6050, max= 8192, per=42.05%, avg=7121.00, stdev=1514.62, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.06%, sys=16.68%, ctx=146, 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=8467KiB/s (8670kB/s), 2117KiB/s-7562KiB/s (2168kB/s-7743kB/s), io=16.0MiB (16.8MB), run=1625-1935msec WRITE: bw=16.5MiB/s (17.3MB/s), 4234KiB/s-6849KiB/s (4335kB/s-7014kB/s), io=32.0MiB (33.6MB), run=1794-1935msec rand-rw: (groupid=0, jobs=1): err= 0: pid=189061: Sat Aug 15 20:43:13 2026 read: IOPS=2, BW=8569KiB/s (8775kB/s)(12.0MiB/1434msec) clat (msec): min=457, max=481, avg=467.48, stdev=12.50 lat (msec): min=457, max=481, avg=467.48, stdev=12.50 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 6574, max= 8192, per=81.53%, avg=7383.00, stdev=1144.10, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=50.87%, ctx=2724, 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=189063: Sat Aug 15 20:43:13 2026 read: IOPS=0, BW=2264KiB/s (2319kB/s)(4096KiB/1809msec) clat (nsec): min=475538k, max=475538k, avg=475538456.00, stdev= 0.00 lat (nsec): min=475539k, max=475539k, avg=475539399.00, stdev= 0.00 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=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 6320, max= 6320, per=69.79%, avg=6320.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4528KiB/s (4637kB/s)(8192KiB/1809msec); 0 zone resets clat (msec): min=442, max=843, avg=642.99, stdev=283.20 lat (msec): min=442, max=843, avg=643.24, stdev=283.23 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 844], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 8192, max= 8192, per=49.78%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=21.02%, ctx=792, 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=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=189065: Sat Aug 15 20:43:13 2026 write: IOPS=1, BW=6172KiB/s (6320kB/s)(12.0MiB/1991msec); 0 zone resets clat (msec): min=69, max=1285, avg=645.71, stdev=610.16 lat (msec): min=70, max=1285, avg=645.97, stdev=610.15 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 70], | 30.00th=[ 70], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 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= 8192, max= 8192, per=49.78%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=9.60%, ctx=58, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=189067: Sat Aug 15 20:43:13 2026 write: IOPS=1, BW=7443KiB/s (7621kB/s)(12.0MiB/1651msec); 0 zone resets clat (msec): min=152, max=1172, avg=542.36, stdev=550.73 lat (msec): min=152, max=1172, avg=542.73, stdev=550.60 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min=11855, max=11855, per=72.03%, avg=11855.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=17.88%, ctx=226, 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=9057KiB/s (9274kB/s), 2264KiB/s-8569KiB/s (2319kB/s-8775kB/s), io=16.0MiB (16.8MB), run=1434-1809msec WRITE: bw=16.1MiB/s (16.9MB/s), 4528KiB/s-7443KiB/s (4637kB/s-7621kB/s), io=32.0MiB (33.6MB), run=1651-1991msec