== sanity test 398b: DIO and buffer IO race ============== 13:08:41 (1789319321) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.85287 s, 17.6 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=189417: Sun Sep 13 13:09:51 2026 read: IOPS=25, BW=102KiB/s (104kB/s)(5992KiB/58922msec) clat (usec): min=48, max=685142, avg=21554.75, stdev=20391.98 lat (usec): min=49, max=685142, avg=21555.59, stdev=20392.02 clat percentiles (usec): | 1.00th=[ 127], 5.00th=[ 7898], 10.00th=[ 9634], 20.00th=[ 12256], | 30.00th=[ 14353], 40.00th=[ 16581], 50.00th=[ 18744], 60.00th=[ 21890], | 70.00th=[ 25297], 80.00th=[ 29492], 90.00th=[ 35390], 95.00th=[ 41681], | 99.00th=[ 56886], 99.50th=[ 63701], 99.90th=[ 78119], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 12, max= 184, per=25.53%, avg=101.62, stdev=32.58, samples=117 iops : min= 3, max= 46, avg=25.03, stdev= 8.20, samples=117 write: IOPS=26, BW=107KiB/s (109kB/s)(6296KiB/58922msec); 0 zone resets clat (usec): min=658, max=103226, avg=16847.56, stdev=12773.63 lat (usec): min=659, max=103227, avg=16848.73, stdev=12773.93 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 2835], 10.00th=[ 3458], 20.00th=[ 5276], | 30.00th=[ 7570], 40.00th=[ 11338], 50.00th=[ 14091], 60.00th=[ 17695], | 70.00th=[ 21627], 80.00th=[ 26608], 90.00th=[ 33424], 95.00th=[ 40109], | 99.00th=[ 57410], 99.50th=[ 64750], 99.90th=[ 88605], 99.95th=[103285], | 99.99th=[103285] bw ( KiB/s): min= 31, max= 216, per=25.79%, avg=107.55, stdev=35.72, samples=116 iops : min= 7, max= 54, avg=26.52, stdev= 9.02, samples=116 lat (usec) : 50=0.03%, 100=0.16%, 250=0.75%, 500=0.07%, 750=0.13% lat (usec) : 1000=0.16% lat (msec) : 2=0.68%, 4=5.79%, 10=16.57%, 20=36.17%, 50=37.50% lat (msec) : 100=1.92%, 250=0.03%, 750=0.03% cpu : usr=0.10%, sys=27.08%, ctx=9780, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=189418: Sun Sep 13 13:09:51 2026 read: IOPS=24, BW=99.3KiB/s (102kB/s)(5940KiB/59836msec) clat (usec): min=32, max=719907, avg=21308.20, stdev=21086.75 lat (usec): min=32, max=719908, avg=21309.07, stdev=21086.82 clat percentiles (usec): | 1.00th=[ 169], 5.00th=[ 8160], 10.00th=[ 9634], 20.00th=[ 12387], | 30.00th=[ 14615], 40.00th=[ 16909], 50.00th=[ 19006], 60.00th=[ 21103], | 70.00th=[ 24511], 80.00th=[ 28705], 90.00th=[ 34341], 95.00th=[ 39060], | 99.00th=[ 56886], 99.50th=[ 67634], 99.90th=[115868], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 32, max= 198, per=25.15%, avg=100.08, stdev=30.94, samples=118 iops : min= 8, max= 49, avg=24.64, stdev= 7.79, samples=118 write: IOPS=26, BW=106KiB/s (109kB/s)(6348KiB/59836msec); 0 zone resets clat (usec): min=822, max=83684, avg=17684.53, stdev=13263.77 lat (usec): min=822, max=83685, avg=17686.98, stdev=13262.66 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 2868], 10.00th=[ 3687], 20.00th=[ 5669], | 30.00th=[ 8586], 40.00th=[11863], 50.00th=[15008], 60.00th=[18220], | 70.00th=[21890], 80.00th=[27132], 90.00th=[35390], 95.00th=[43779], | 99.00th=[60031], 99.50th=[69731], 99.90th=[81265], 99.95th=[83362], | 99.99th=[83362] bw ( KiB/s): min= 31, max= 223, per=25.65%, avg=106.97, stdev=38.83, samples=118 iops : min= 7, max= 55, avg=26.37, stdev= 9.72, samples=118 lat (usec) : 50=0.03%, 100=0.07%, 250=0.62%, 500=0.03%, 1000=0.20% lat (msec) : 2=0.65%, 4=4.98%, 10=16.54%, 20=36.65%, 50=37.89% lat (msec) : 100=2.28%, 250=0.03%, 750=0.03% cpu : usr=0.07%, sys=26.82%, ctx=9851, 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=189419: Sun Sep 13 13:09:51 2026 read: IOPS=25, BW=102KiB/s (104kB/s)(6028KiB/59144msec) clat (usec): min=88, max=114777, avg=20576.81, stdev=11156.22 lat (usec): min=88, max=114779, avg=20577.67, stdev=11156.38 clat percentiles (usec): | 1.00th=[ 127], 5.00th=[ 7439], 10.00th=[ 9110], 20.00th=[ 11994], | 30.00th=[ 14222], 40.00th=[ 16581], 50.00th=[ 19006], 60.00th=[ 21103], | 70.00th=[ 24249], 80.00th=[ 28443], 90.00th=[ 34341], 95.00th=[ 40109], | 99.00th=[ 54789], 99.50th=[ 61604], 99.90th=[100140], 99.95th=[114820], | 99.99th=[114820] bw ( KiB/s): min= 47, max= 183, per=25.79%, avg=102.63, stdev=31.32, samples=116 iops : min= 11, max= 45, avg=25.29, stdev= 7.86, samples=116 write: IOPS=26, BW=106KiB/s (108kB/s)(6260KiB/59144msec); 0 zone resets clat (usec): min=687, max=725542, avg=17888.44, stdev=22336.00 lat (usec): min=688, max=725543, avg=17889.47, stdev=22336.07 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 2999], 10.00th=[ 3589], 20.00th=[ 5407], | 30.00th=[ 8094], 40.00th=[ 11469], 50.00th=[ 14484], 60.00th=[ 17957], | 70.00th=[ 21627], 80.00th=[ 27132], 90.00th=[ 35914], 95.00th=[ 44303], | 99.00th=[ 58983], 99.50th=[ 68682], 99.90th=[102237], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 40, max= 199, per=25.55%, avg=106.53, stdev=31.39, samples=116 iops : min= 10, max= 49, avg=26.26, stdev= 7.91, samples=116 lat (usec) : 100=0.10%, 250=1.30%, 500=0.13%, 750=0.13%, 1000=0.23% lat (msec) : 2=0.62%, 4=5.21%, 10=16.41%, 20=36.59%, 50=36.98% lat (msec) : 100=2.21%, 250=0.07%, 750=0.03% cpu : usr=0.09%, sys=26.63%, ctx=9672, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=189420: Sun Sep 13 13:09:51 2026 read: IOPS=25, BW=101KiB/s (103kB/s)(6052KiB/60187msec) clat (usec): min=33, max=86699, avg=20843.42, stdev=10944.54 lat (usec): min=33, max=86700, avg=20844.52, stdev=10945.25 clat percentiles (usec): | 1.00th=[ 131], 5.00th=[ 7898], 10.00th=[ 9503], 20.00th=[11994], | 30.00th=[14222], 40.00th=[16450], 50.00th=[19006], 60.00th=[21627], | 70.00th=[24773], 80.00th=[28443], 90.00th=[34866], 95.00th=[40109], | 99.00th=[54789], 99.50th=[62129], 99.90th=[81265], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 31, max= 206, per=25.29%, avg=100.67, stdev=33.84, samples=118 iops : min= 7, max= 51, avg=24.80, stdev= 8.54, samples=118 write: IOPS=25, BW=104KiB/s (106kB/s)(6236KiB/60187msec); 0 zone resets clat (usec): min=730, max=726384, avg=18289.46, stdev=22432.32 lat (usec): min=731, max=726386, avg=18290.45, stdev=22432.38 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 3064], 10.00th=[ 3818], 20.00th=[ 5669], | 30.00th=[ 8455], 40.00th=[ 11731], 50.00th=[ 14484], 60.00th=[ 18220], | 70.00th=[ 22414], 80.00th=[ 28443], 90.00th=[ 36439], 95.00th=[ 44303], | 99.00th=[ 60556], 99.50th=[ 72877], 99.90th=[ 82314], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 47, max= 176, per=24.96%, avg=104.08, stdev=33.06, samples=118 iops : min= 11, max= 44, avg=25.64, stdev= 8.27, samples=118 lat (usec) : 50=0.03%, 100=0.13%, 250=1.01%, 750=0.03%, 1000=0.29% lat (msec) : 2=0.55%, 4=4.65%, 10=16.63%, 20=36.17%, 50=38.25% lat (msec) : 100=2.21%, 750=0.03% cpu : usr=0.07%, sys=26.74%, ctx=9945, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=399KiB/s (409kB/s), 99.3KiB/s-102KiB/s (102kB/s-104kB/s), io=23.4MiB (24.6MB), run=58922-60187msec WRITE: bw=418KiB/s (428kB/s), 104KiB/s-107KiB/s (106kB/s-109kB/s), io=24.6MiB (25.7MB), run=58922-60187msec rand-rw: (groupid=0, jobs=1): err= 0: pid=189412: Sun Sep 13 13:09:57 2026 read: IOPS=22, BW=89.7KiB/s (91.9kB/s)(5992KiB/66772msec) clat (msec): min=2, max=692, avg=19.87, stdev=23.16 lat (msec): min=2, max=692, avg=19.87, stdev=23.16 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 31], 90.00th=[ 43], 95.00th=[ 52], | 99.00th=[ 72], 99.50th=[ 80], 99.90th=[ 97], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 24, max= 336, per=24.87%, avg=89.27, stdev=63.24, samples=131 iops : min= 6, max= 84, avg=21.95, stdev=15.91, samples=131 write: IOPS=23, BW=94.3KiB/s (96.6kB/s)(6296KiB/66772msec); 0 zone resets clat (msec): min=3, max=111, avg=23.38, stdev=16.62 lat (msec): min=3, max=111, avg=23.38, stdev=16.62 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 36], 90.00th=[ 45], 95.00th=[ 56], | 99.00th=[ 80], 99.50th=[ 87], 99.90th=[ 112], 99.95th=[ 112], | 99.99th=[ 112] bw ( KiB/s): min= 23, max= 392, per=24.86%, avg=93.49, stdev=66.84, samples=131 iops : min= 5, max= 98, avg=23.00, stdev=16.81, samples=131 lat (msec) : 4=0.94%, 10=28.55%, 20=28.55%, 50=35.51%, 100=6.28% lat (msec) : 250=0.13%, 750=0.03% cpu : usr=0.09%, sys=12.95%, ctx=5983, 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=189413: Sun Sep 13 13:09:57 2026 read: IOPS=22, BW=89.0KiB/s (91.2kB/s)(5940KiB/66709msec) clat (msec): min=2, max=720, avg=19.83, stdev=23.83 lat (msec): min=2, max=720, avg=19.83, stdev=23.83 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 30], 90.00th=[ 43], 95.00th=[ 53], | 99.00th=[ 73], 99.50th=[ 79], 99.90th=[ 95], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 16, max= 368, per=24.77%, avg=88.91, stdev=65.76, samples=131 iops : min= 4, max= 92, avg=21.85, stdev=16.55, samples=131 write: IOPS=23, BW=95.2KiB/s (97.4kB/s)(6348KiB/66709msec); 0 zone resets clat (msec): min=4, max=114, avg=23.35, stdev=16.47 lat (msec): min=4, max=114, avg=23.35, stdev=16.47 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 37], 90.00th=[ 46], 95.00th=[ 55], | 99.00th=[ 77], 99.50th=[ 89], 99.90th=[ 110], 99.95th=[ 115], | 99.99th=[ 115] bw ( KiB/s): min= 32, max= 392, per=25.12%, avg=94.47, stdev=66.92, samples=131 iops : min= 8, max= 98, avg=23.24, stdev=16.83, samples=131 lat (msec) : 4=1.07%, 10=28.09%, 20=29.23%, 50=34.96%, 100=6.51% lat (msec) : 250=0.10%, 750=0.03% cpu : usr=0.07%, sys=12.96%, ctx=6092, 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=189414: Sun Sep 13 13:09:57 2026 read: IOPS=22, BW=90.7KiB/s (92.9kB/s)(6028KiB/66455msec) clat (usec): min=2593, max=95175, avg=18666.04, stdev=14642.67 lat (usec): min=2594, max=95176, avg=18668.12, stdev=14644.39 clat percentiles (usec): | 1.00th=[ 3556], 5.00th=[ 4686], 10.00th=[ 5211], 20.00th=[ 6783], | 30.00th=[ 8979], 40.00th=[11469], 50.00th=[14222], 60.00th=[17171], | 70.00th=[21365], 80.00th=[28705], 90.00th=[38011], 95.00th=[49021], | 99.00th=[72877], 99.50th=[76022], 99.90th=[88605], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 23, max= 368, per=25.39%, avg=91.17, stdev=68.55, samples=131 iops : min= 5, max= 92, avg=22.42, stdev=17.25, samples=131 write: IOPS=23, BW=94.2KiB/s (96.5kB/s)(6260KiB/66455msec); 0 zone resets clat (msec): min=4, max=725, avg=24.35, stdev=24.97 lat (msec): min=4, max=725, avg=24.35, stdev=24.97 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 37], 90.00th=[ 50], 95.00th=[ 59], | 99.00th=[ 82], 99.50th=[ 94], 99.90th=[ 125], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 15, max= 352, per=25.12%, avg=94.47, stdev=64.02, samples=131 iops : min= 3, max= 88, avg=23.24, stdev=16.12, samples=131 lat (msec) : 4=0.85%, 10=27.90%, 20=31.28%, 50=32.88%, 100=6.87% lat (msec) : 250=0.20%, 750=0.03% cpu : usr=0.08%, sys=13.07%, ctx=6044, 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=189415: Sun Sep 13 13:09:57 2026 read: IOPS=22, BW=90.7KiB/s (92.9kB/s)(6052KiB/66704msec) clat (msec): min=2, max=108, avg=19.05, stdev=15.31 lat (msec): min=2, max=108, avg=19.05, stdev=15.31 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 31], 90.00th=[ 41], 95.00th=[ 53], | 99.00th=[ 70], 99.50th=[ 74], 99.90th=[ 99], 99.95th=[ 109], | 99.99th=[ 109] bw ( KiB/s): min= 16, max= 376, per=25.16%, avg=90.31, stdev=65.14, samples=131 iops : min= 4, max= 94, avg=22.21, stdev=16.37, samples=131 write: IOPS=23, BW=93.5KiB/s (95.7kB/s)(6236KiB/66704msec); 0 zone resets clat (msec): min=4, max=726, avg=24.16, stdev=24.58 lat (msec): min=4, max=726, avg=24.16, stdev=24.58 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 37], 90.00th=[ 48], 95.00th=[ 57], | 99.00th=[ 80], 99.50th=[ 91], 99.90th=[ 128], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 24, max= 368, per=24.82%, avg=93.31, stdev=67.17, samples=131 iops : min= 6, max= 92, avg=22.95, stdev=16.90, samples=131 lat (msec) : 4=0.94%, 10=29.10%, 20=28.61%, 50=34.11%, 100=7.03% lat (msec) : 250=0.16%, 750=0.03% cpu : usr=0.11%, sys=12.87%, ctx=6007, 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=360KiB/s (368kB/s), 89.0KiB/s-90.7KiB/s (91.2kB/s-92.9kB/s), io=23.4MiB (24.6MB), run=66455-66772msec WRITE: bw=377KiB/s (386kB/s), 93.5KiB/s-95.2KiB/s (95.7kB/s-97.4kB/s), io=24.6MiB (25.7MB), run=66455-66772msec 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=189448: Sun Sep 13 13:10:17 2026 read: IOPS=26, BW=416KiB/s (426kB/s)(5920KiB/14230msec) clat (usec): min=76, max=58534, avg=19077.33, stdev=9023.27 lat (usec): min=77, max=58534, avg=19077.86, stdev=9023.35 clat percentiles (usec): | 1.00th=[ 104], 5.00th=[ 4228], 10.00th=[ 9896], 20.00th=[12780], | 30.00th=[14091], 40.00th=[16057], 50.00th=[17695], 60.00th=[20317], | 70.00th=[22676], 80.00th=[25560], 90.00th=[30278], 95.00th=[35390], | 99.00th=[45876], 99.50th=[50070], 99.90th=[58459], 99.95th=[58459], | 99.99th=[58459] bw ( KiB/s): min= 223, max= 670, per=24.76%, avg=416.64, stdev=101.75, samples=28 iops : min= 13, max= 41, avg=25.50, stdev= 6.40, samples=28 write: IOPS=27, BW=448KiB/s (458kB/s)(6368KiB/14230msec); 0 zone resets clat (usec): min=1666, max=62755, avg=17781.25, stdev=11832.16 lat (usec): min=1667, max=62755, avg=17782.13, stdev=11832.17 clat percentiles (usec): | 1.00th=[ 2671], 5.00th=[ 4228], 10.00th=[ 4948], 20.00th=[ 6783], | 30.00th=[10028], 40.00th=[12518], 50.00th=[15008], 60.00th=[18482], | 70.00th=[21890], 80.00th=[27395], 90.00th=[35390], 95.00th=[40109], | 99.00th=[57934], 99.50th=[59507], 99.90th=[62653], 99.95th=[62653], | 99.99th=[62653] bw ( KiB/s): min= 256, max= 576, per=25.25%, avg=446.93, stdev=87.86, samples=28 iops : min= 16, max= 36, avg=27.39, stdev= 5.53, samples=28 lat (usec) : 100=0.39%, 250=1.69% lat (msec) : 2=0.52%, 4=1.43%, 10=16.28%, 20=41.28%, 50=37.37% lat (msec) : 100=1.04% cpu : usr=0.06%, sys=28.05%, ctx=2861, 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=189449: Sun Sep 13 13:10:17 2026 read: IOPS=25, BW=408KiB/s (418kB/s)(5744KiB/14071msec) clat (usec): min=80, max=62027, avg=19524.19, stdev=9566.22 lat (usec): min=81, max=62028, avg=19524.78, stdev=9566.28 clat percentiles (usec): | 1.00th=[ 111], 5.00th=[ 6849], 10.00th=[10159], 20.00th=[12387], | 30.00th=[14222], 40.00th=[15926], 50.00th=[18482], 60.00th=[20841], | 70.00th=[23200], 80.00th=[26608], 90.00th=[30802], 95.00th=[36439], | 99.00th=[56886], 99.50th=[62129], 99.90th=[62129], 99.95th=[62129], | 99.99th=[62129] bw ( KiB/s): min= 255, max= 512, per=24.52%, avg=412.59, stdev=78.45, samples=27 iops : min= 15, max= 32, avg=25.22, stdev= 4.95, samples=27 write: IOPS=29, BW=465KiB/s (476kB/s)(6544KiB/14071msec); 0 zone resets clat (usec): min=1037, max=62639, avg=17078.73, stdev=10883.45 lat (usec): min=1038, max=62640, avg=17079.59, stdev=10883.44 clat percentiles (usec): | 1.00th=[ 2024], 5.00th=[ 4228], 10.00th=[ 4948], 20.00th=[ 7504], | 30.00th=[10683], 40.00th=[12518], 50.00th=[14353], 60.00th=[16909], | 70.00th=[21103], 80.00th=[25822], 90.00th=[31589], 95.00th=[38536], | 99.00th=[49021], 99.50th=[51119], 99.90th=[62653], 99.95th=[62653], | 99.99th=[62653] bw ( KiB/s): min= 224, max= 768, per=26.28%, avg=465.19, stdev=105.10, samples=27 iops : min= 14, max= 48, avg=28.52, stdev= 6.61, samples=27 lat (usec) : 100=0.26%, 250=1.56%, 500=0.13%, 750=0.13% lat (msec) : 2=0.52%, 4=1.56%, 10=14.71%, 20=43.88%, 50=36.33% lat (msec) : 100=0.91% cpu : usr=0.08%, sys=28.70%, ctx=2855, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=189450: Sun Sep 13 13:10:17 2026 read: IOPS=27, BW=443KiB/s (454kB/s)(6256KiB/14125msec) clat (usec): min=88, max=59879, avg=19292.50, stdev=8862.36 lat (usec): min=88, max=59879, avg=19293.03, stdev=8862.37 clat percentiles (usec): | 1.00th=[ 94], 5.00th=[ 6194], 10.00th=[10421], 20.00th=[12780], | 30.00th=[14222], 40.00th=[16188], 50.00th=[18220], 60.00th=[20841], | 70.00th=[22676], 80.00th=[25822], 90.00th=[29754], 95.00th=[34341], | 99.00th=[42730], 99.50th=[55837], 99.90th=[60031], 99.95th=[60031], | 99.99th=[60031] bw ( KiB/s): min= 287, max= 608, per=26.80%, avg=451.07, stdev=103.65, samples=27 iops : min= 17, max= 38, avg=27.67, stdev= 6.42, samples=27 write: IOPS=26, BW=427KiB/s (437kB/s)(6032KiB/14125msec); 0 zone resets clat (usec): min=1061, max=68486, avg=17367.05, stdev=11230.59 lat (usec): min=1062, max=68487, avg=17368.09, stdev=11230.65 clat percentiles (usec): | 1.00th=[ 1975], 5.00th=[ 4621], 10.00th=[ 5407], 20.00th=[ 7046], | 30.00th=[10028], 40.00th=[12649], 50.00th=[14877], 60.00th=[17171], | 70.00th=[21103], 80.00th=[27395], 90.00th=[32900], 95.00th=[40109], | 99.00th=[50594], 99.50th=[54789], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 255, max= 640, per=24.17%, avg=427.78, stdev=97.42, samples=27 iops : min= 15, max= 40, avg=26.19, stdev= 6.13, samples=27 lat (usec) : 100=0.52%, 250=1.56%, 500=0.13% lat (msec) : 2=0.52%, 4=0.91%, 10=15.10%, 20=43.36%, 50=36.98% lat (msec) : 100=0.91% cpu : usr=0.06%, sys=28.07%, ctx=2966, 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=189451: Sun Sep 13 13:10:17 2026 read: IOPS=26, BW=430KiB/s (440kB/s)(6032KiB/14031msec) clat (usec): min=68, max=58058, avg=19111.38, stdev=10275.54 lat (usec): min=68, max=58059, avg=19111.89, stdev=10275.55 clat percentiles (usec): | 1.00th=[ 93], 5.00th=[ 124], 10.00th=[ 9241], 20.00th=[11863], | 30.00th=[13566], 40.00th=[15270], 50.00th=[17957], 60.00th=[20317], | 70.00th=[22938], 80.00th=[26084], 90.00th=[32375], 95.00th=[39060], | 99.00th=[53216], 99.50th=[54264], 99.90th=[57934], 99.95th=[57934], | 99.99th=[57934] bw ( KiB/s): min= 287, max= 640, per=25.75%, avg=433.41, stdev=81.42, samples=27 iops : min= 17, max= 40, avg=26.56, stdev= 5.13, samples=27 write: IOPS=27, BW=446KiB/s (457kB/s)(6256KiB/14031msec); 0 zone resets clat (usec): min=1148, max=65499, avg=17230.68, stdev=11363.69 lat (usec): min=1148, max=65500, avg=17231.60, stdev=11363.68 clat percentiles (usec): | 1.00th=[ 2606], 5.00th=[ 4424], 10.00th=[ 5145], 20.00th=[ 6915], | 30.00th=[ 9896], 40.00th=[12125], 50.00th=[14615], 60.00th=[16909], | 70.00th=[21365], 80.00th=[26346], 90.00th=[33162], 95.00th=[38536], | 99.00th=[53740], 99.50th=[61080], 99.90th=[65274], 99.95th=[65274], | 99.99th=[65274] bw ( KiB/s): min= 287, max= 701, per=25.39%, avg=449.41, stdev=119.21, samples=27 iops : min= 17, max= 43, avg=27.56, stdev= 7.49, samples=27 lat (usec) : 100=0.78%, 250=2.34%, 500=0.26% lat (msec) : 2=0.39%, 4=1.69%, 10=15.89%, 20=41.54%, 50=35.94% lat (msec) : 100=1.17% cpu : usr=0.07%, sys=28.10%, ctx=2821, 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=1683KiB/s (1724kB/s), 408KiB/s-443KiB/s (418kB/s-454kB/s), io=23.4MiB (24.5MB), run=14031-14230msec WRITE: bw=1771KiB/s (1813kB/s), 427KiB/s-465KiB/s (437kB/s-476kB/s), io=24.6MiB (25.8MB), run=14031-14230msec rand-rw: (groupid=0, jobs=1): err= 0: pid=189443: Sun Sep 13 13:10:19 2026 read: IOPS=23, BW=375KiB/s (384kB/s)(5920KiB/15782msec) clat (msec): min=3, max=104, avg=18.99, stdev=14.64 lat (msec): min=3, max=104, avg=18.99, stdev=14.64 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 21], 80.00th=[ 29], 90.00th=[ 42], 95.00th=[ 50], | 99.00th=[ 67], 99.50th=[ 70], 99.90th=[ 105], 99.95th=[ 105], | 99.99th=[ 105] bw ( KiB/s): min= 159, max= 1024, per=24.28%, avg=366.10, stdev=189.54, samples=31 iops : min= 9, max= 64, avg=22.45, stdev=11.89, samples=31 write: IOPS=25, BW=403KiB/s (413kB/s)(6368KiB/15782msec); 0 zone resets clat (usec): min=5470, max=98794, avg=21910.92, stdev=14070.27 lat (usec): min=5471, max=98795, avg=21912.13, stdev=14070.32 clat percentiles (usec): | 1.00th=[ 6194], 5.00th=[ 7046], 10.00th=[ 8160], 20.00th=[10028], | 30.00th=[12518], 40.00th=[14353], 50.00th=[17957], 60.00th=[21627], | 70.00th=[26346], 80.00th=[32113], 90.00th=[41681], 95.00th=[48497], | 99.00th=[68682], 99.50th=[79168], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 128, max= 1088, per=25.07%, avg=397.58, stdev=214.35, samples=31 iops : min= 8, max= 68, avg=24.45, stdev=13.36, samples=31 lat (msec) : 4=0.13%, 10=24.35%, 20=37.11%, 50=33.72%, 100=4.56% lat (msec) : 250=0.13% cpu : usr=0.04%, sys=12.66%, ctx=1520, 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=189444: Sun Sep 13 13:10:19 2026 read: IOPS=22, BW=362KiB/s (370kB/s)(5744KiB/15881msec) clat (usec): min=2467, max=82650, avg=18717.02, stdev=13793.28 lat (usec): min=2467, max=82651, avg=18717.64, stdev=13793.23 clat percentiles (usec): | 1.00th=[ 2704], 5.00th=[ 5014], 10.00th=[ 5997], 20.00th=[ 7963], | 30.00th=[10028], 40.00th=[12125], 50.00th=[15008], 60.00th=[17433], | 70.00th=[20841], 80.00th=[27132], 90.00th=[39060], 95.00th=[46924], | 99.00th=[64750], 99.50th=[78119], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 159, max= 1088, per=23.30%, avg=351.32, stdev=180.52, samples=31 iops : min= 9, max= 68, avg=21.55, stdev=11.27, samples=31 write: IOPS=25, BW=412KiB/s (422kB/s)(6544KiB/15881msec); 0 zone resets clat (usec): min=4020, max=87693, avg=22292.13, stdev=14157.34 lat (usec): min=4021, max=87695, avg=22293.42, stdev=14157.31 clat percentiles (usec): | 1.00th=[ 4555], 5.00th=[ 6652], 10.00th=[ 7635], 20.00th=[ 9634], | 30.00th=[12256], 40.00th=[15008], 50.00th=[18482], 60.00th=[23462], | 70.00th=[27657], 80.00th=[34866], 90.00th=[42730], 95.00th=[47973], | 99.00th=[64750], 99.50th=[66847], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 160, max= 1277, per=24.73%, avg=392.23, stdev=225.48, samples=31 iops : min= 10, max= 79, avg=24.10, stdev=14.11, samples=31 lat (msec) : 4=1.30%, 10=23.83%, 20=34.38%, 50=36.46%, 100=4.04% cpu : usr=0.08%, sys=12.53%, ctx=1537, 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=189445: Sun Sep 13 13:10:19 2026 read: IOPS=24, BW=396KiB/s (406kB/s)(6256KiB/15785msec) clat (usec): min=3695, max=75802, avg=17596.93, stdev=13348.12 lat (usec): min=3695, max=75803, avg=17597.51, stdev=13348.12 clat percentiles (usec): | 1.00th=[ 4948], 5.00th=[ 5604], 10.00th=[ 6325], 20.00th=[ 7963], | 30.00th=[ 9634], 40.00th=[11469], 50.00th=[12911], 60.00th=[15139], | 70.00th=[17957], 80.00th=[25035], 90.00th=[38011], 95.00th=[48497], | 99.00th=[62653], 99.50th=[69731], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 127, max= 1184, per=26.15%, avg=394.29, stdev=236.72, samples=31 iops : min= 7, max= 74, avg=24.23, stdev=14.85, samples=31 write: IOPS=23, BW=382KiB/s (391kB/s)(6032KiB/15785msec); 0 zone resets clat (usec): min=5862, max=84197, avg=23475.77, stdev=14328.64 lat (usec): min=5863, max=84198, avg=23477.03, stdev=14328.79 clat percentiles (usec): | 1.00th=[ 6587], 5.00th=[ 7308], 10.00th=[ 8717], 20.00th=[10421], | 30.00th=[13042], 40.00th=[16188], 50.00th=[20317], 60.00th=[24511], | 70.00th=[28443], 80.00th=[35390], 90.00th=[42730], 95.00th=[50070], | 99.00th=[69731], 99.50th=[78119], 99.90th=[84411], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 190, max= 960, per=23.64%, avg=374.90, stdev=160.63, samples=31 iops : min= 11, max= 60, avg=23.00, stdev= 9.99, samples=31 lat (msec) : 4=0.13%, 10=25.39%, 20=36.20%, 50=33.72%, 100=4.56% cpu : usr=0.06%, sys=12.97%, ctx=1571, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=189446: Sun Sep 13 13:10:19 2026 read: IOPS=23, BW=382KiB/s (391kB/s)(6032KiB/15804msec) clat (usec): min=3157, max=82301, avg=18814.25, stdev=14627.18 lat (usec): min=3158, max=82301, avg=18815.21, stdev=14626.93 clat percentiles (usec): | 1.00th=[ 4047], 5.00th=[ 5407], 10.00th=[ 6063], 20.00th=[ 8291], | 30.00th=[ 9896], 40.00th=[11338], 50.00th=[12649], 60.00th=[15926], | 70.00th=[20841], 80.00th=[28181], 90.00th=[41157], 95.00th=[49546], | 99.00th=[72877], 99.50th=[76022], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 95, max= 1088, per=24.75%, avg=373.29, stdev=217.31, samples=31 iops : min= 5, max= 68, avg=22.90, stdev=13.62, samples=31 write: IOPS=24, BW=396KiB/s (405kB/s)(6256KiB/15804msec); 0 zone resets clat (usec): min=5276, max=80517, avg=22232.42, stdev=13256.17 lat (usec): min=5277, max=80518, avg=22233.63, stdev=13256.17 clat percentiles (usec): | 1.00th=[ 6259], 5.00th=[ 7504], 10.00th=[ 8455], 20.00th=[10552], | 30.00th=[13304], 40.00th=[15664], 50.00th=[18220], 60.00th=[22938], | 70.00th=[26346], 80.00th=[32637], 90.00th=[41681], 95.00th=[46924], | 99.00th=[66323], 99.50th=[78119], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 159, max= 1088, per=24.53%, avg=389.03, stdev=187.03, samples=31 iops : min= 9, max= 68, avg=23.90, stdev=11.68, samples=31 lat (msec) : 4=0.39%, 10=23.57%, 20=36.85%, 50=35.03%, 100=4.17% cpu : usr=0.06%, sys=12.66%, ctx=1545, 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=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=1508KiB/s (1544kB/s), 362KiB/s-396KiB/s (370kB/s-406kB/s), io=23.4MiB (24.5MB), run=15782-15881msec WRITE: bw=1587KiB/s (1625kB/s), 382KiB/s-412KiB/s (391kB/s-422kB/s), io=24.6MiB (25.8MB), run=15782-15881msec 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=189459: Sun Sep 13 13:10:28 2026 read: IOPS=2, BW=2599KiB/s (2661kB/s)(7168KiB/2758msec) clat (usec): min=445, max=1254.8k, avg=250942.65, stdev=451139.48 lat (usec): min=447, max=1254.8k, avg=250943.84, stdev=451139.59 clat percentiles (usec): | 1.00th=[ 445], 5.00th=[ 445], 10.00th=[ 445], | 20.00th=[ 453], 30.00th=[ 465], 40.00th=[ 465], | 50.00th=[ 133694], 60.00th=[ 149947], 70.00th=[ 149947], | 80.00th=[ 217056], 90.00th=[1249903], 95.00th=[1249903], | 99.00th=[1249903], 99.50th=[1249903], 99.90th=[1249903], | 99.95th=[1249903], 99.99th=[1249903] bw ( KiB/s): min= 1928, max= 4087, per=48.43%, avg=3283.33, stdev=1180.50, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1856KiB/s (1901kB/s)(5120KiB/2758msec); 0 zone resets clat (msec): min=133, max=342, avg=185.38, stdev=88.82 lat (msec): min=133, max=342, avg=185.42, stdev=88.82 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 134], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 159], 60.00th=[ 159], | 70.00th=[ 159], 80.00th=[ 159], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 1928, max= 4087, per=31.69%, avg=3007.50, stdev=1526.64, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (usec) : 500=25.00% lat (msec) : 250=58.33%, 500=8.33%, 2000=8.33% cpu : usr=0.00%, sys=42.04%, ctx=684, 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=189460: Sun Sep 13 13:10:28 2026 read: IOPS=0, BW=678KiB/s (694kB/s)(2048KiB/3021msec) clat (usec): min=594, max=97430, avg=49012.44, stdev=68472.91 lat (usec): min=595, max=97431, avg=49013.79, stdev=68473.19 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], 20.00th=[ 594], | 30.00th=[ 594], 40.00th=[ 594], 50.00th=[ 594], 60.00th=[96994], | 70.00th=[96994], 80.00th=[96994], 90.00th=[96994], 95.00th=[96994], | 99.00th=[96994], 99.50th=[96994], 99.90th=[96994], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 1917, max= 1928, per=28.36%, avg=1922.50, stdev= 7.78, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3390KiB/s (3471kB/s)(10.0MiB/3021msec); 0 zone resets clat (msec): min=136, max=589, avg=290.90, stdev=126.98 lat (msec): min=136, max=589, avg=290.96, stdev=126.99 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 174], | 30.00th=[ 207], 40.00th=[ 239], 50.00th=[ 279], 60.00th=[ 279], | 70.00th=[ 309], 80.00th=[ 326], 90.00th=[ 372], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 3856, max= 4096, per=42.42%, avg=4025.50, stdev=113.86, samples=4 iops : min= 3, max= 4, avg= 3.25, stdev= 0.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=50.93%, ctx=256, 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=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=189461: Sun Sep 13 13:10:28 2026 read: IOPS=2, BW=2483KiB/s (2543kB/s)(6144KiB/2474msec) clat (usec): min=462, max=245480, avg=68847.05, stdev=108844.65 lat (usec): min=463, max=245480, avg=68847.93, stdev=108844.76 clat percentiles (usec): | 1.00th=[ 461], 5.00th=[ 461], 10.00th=[ 461], 20.00th=[ 474], | 30.00th=[ 474], 40.00th=[ 482], 50.00th=[ 482], 60.00th=[ 619], | 70.00th=[164627], 80.00th=[164627], 90.00th=[246416], 95.00th=[246416], | 99.00th=[246416], 99.50th=[246416], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2483KiB/s (2543kB/s)(6144KiB/2474msec); 0 zone resets clat (msec): min=177, max=673, avg=340.42, stdev=207.26 lat (msec): min=177, max=673, avg=340.47, stdev=207.26 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 194], | 30.00th=[ 194], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 259], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 2031, max= 3915, per=28.08%, avg=2664.67, stdev=1082.85, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 500=25.00%, 750=8.33% lat (msec) : 250=41.67%, 500=8.33%, 750=16.67% cpu : usr=0.00%, sys=42.34%, ctx=200, 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=189463: Sun Sep 13 13:10:28 2026 read: IOPS=2, BW=2257KiB/s (2311kB/s)(5120KiB/2269msec) clat (usec): min=612, max=160224, avg=79266.84, stdev=65923.54 lat (usec): min=613, max=160226, avg=79268.20, stdev=65923.52 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], 20.00th=[ 611], | 30.00th=[ 37487], 40.00th=[ 37487], 50.00th=[ 66847], 60.00th=[ 66847], | 70.00th=[131597], 80.00th=[131597], 90.00th=[160433], 95.00th=[160433], | 99.00th=[160433], 99.50th=[160433], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=3, BW=3159KiB/s (3235kB/s)(7168KiB/2269msec); 0 zone resets clat (msec): min=144, max=425, avg=264.10, stdev=103.01 lat (msec): min=144, max=425, avg=264.16, stdev=103.00 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 184], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 236], 60.00th=[ 251], | 70.00th=[ 251], 80.00th=[ 384], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 1992, max= 4096, per=31.55%, avg=2993.75, stdev=1138.54, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 100=8.33%, 250=50.00%, 500=25.00% cpu : usr=0.04%, sys=54.37%, ctx=515, 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=6779KiB/s (6942kB/s), 678KiB/s-2599KiB/s (694kB/s-2661kB/s), io=20.0MiB (20.0MB), run=2269-3021msec WRITE: bw=9491KiB/s (9719kB/s), 1856KiB/s-3390KiB/s (1901kB/s-3471kB/s), io=28.0MiB (29.4MB), run=2269-3021msec rand-rw: (groupid=0, jobs=1): err= 0: pid=189462: Sun Sep 13 13:10:28 2026 read: IOPS=3, BW=3542KiB/s (3626kB/s)(7168KiB/2024msec) clat (msec): min=45, max=406, avg=169.85, stdev=121.04 lat (msec): min=45, max=406, avg=169.85, stdev=121.04 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 46], 10.00th=[ 46], 20.00th=[ 75], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 136], 60.00th=[ 192], | 70.00th=[ 192], 80.00th=[ 222], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 4096, max= 5953, per=77.80%, avg=5024.50, stdev=1313.10, samples=2 iops : min= 4, max= 5, avg= 4.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2530KiB/s (2590kB/s)(5120KiB/2024msec); 0 zone resets clat (msec): min=79, max=439, avg=163.27, stdev=155.92 lat (msec): min=79, max=439, avg=163.35, stdev=155.93 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 80], | 30.00th=[ 81], 40.00th=[ 81], 50.00th=[ 85], 60.00th=[ 85], | 70.00th=[ 133], 80.00th=[ 133], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 1984, max= 4047, per=33.35%, avg=3015.50, stdev=1458.76, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (msec) : 50=8.33%, 100=33.33%, 250=41.67%, 500=16.67% cpu : usr=0.10%, sys=20.02%, ctx=90, 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=189464: Sun Sep 13 13:10:28 2026 read: IOPS=0, BW=647KiB/s (662kB/s)(2048KiB/3167msec) clat (msec): min=74, max=398, avg=236.94, stdev=229.13 lat (msec): min=74, max=398, avg=236.94, stdev=229.13 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 75], 40.00th=[ 75], 50.00th=[ 75], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 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= 2027, max= 2043, per=31.51%, avg=2035.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3233KiB/s (3311kB/s)(10.0MiB/3167msec); 0 zone resets clat (msec): min=68, max=479, avg=260.37, stdev=121.57 lat (msec): min=68, max=479, avg=260.44, stdev=121.57 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 205], 50.00th=[ 255], 60.00th=[ 292], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 338], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 2023, max= 6144, per=40.17%, avg=3631.60, stdev=1707.72, samples=5 iops : min= 1, max= 6, avg= 3.00, stdev= 1.87, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=58.33% cpu : usr=0.00%, sys=27.70%, ctx=414, 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=189465: Sun Sep 13 13:10:28 2026 read: IOPS=1, BW=1938KiB/s (1984kB/s)(6144KiB/3171msec) clat (msec): min=33, max=465, avg=164.24, stdev=157.68 lat (msec): min=33, max=465, avg=164.25, stdev=157.68 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 34], 10.00th=[ 34], 20.00th=[ 48], | 30.00th=[ 48], 40.00th=[ 113], 50.00th=[ 113], 60.00th=[ 148], | 70.00th=[ 178], 80.00th=[ 178], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 1928, max= 4096, per=41.54%, avg=2682.33, stdev=1225.19, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1938KiB/s (1984kB/s)(6144KiB/3171msec); 0 zone resets clat (msec): min=52, max=688, avg=355.84, stdev=327.61 lat (msec): min=52, max=688, avg=355.92, stdev=327.63 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 58], | 30.00th=[ 58], 40.00th=[ 65], 50.00th=[ 65], 60.00th=[ 592], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 2023, max= 4096, per=28.23%, avg=2552.50, stdev=1029.06, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 lat (msec) : 50=16.67%, 100=25.00%, 250=25.00%, 500=8.33%, 750=25.00% cpu : usr=0.06%, sys=12.59%, ctx=128, 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=189466: Sun Sep 13 13:10:28 2026 read: IOPS=1, BW=1620KiB/s (1659kB/s)(5120KiB/3160msec) clat (msec): min=41, max=386, avg=160.98, stdev=137.21 lat (msec): min=41, max=386, avg=160.98, stdev=137.21 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 42], 10.00th=[ 42], 20.00th=[ 42], | 30.00th=[ 64], 40.00th=[ 64], 50.00th=[ 136], 60.00th=[ 136], | 70.00th=[ 178], 80.00th=[ 178], 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= 1928, max= 6131, per=62.40%, avg=4029.50, stdev=2971.97, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2268KiB/s (2323kB/s)(7168KiB/3160msec); 0 zone resets clat (msec): min=66, max=648, avg=321.80, stdev=214.00 lat (msec): min=66, max=648, avg=321.87, stdev=214.00 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 355], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 518], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 2023, max= 4096, per=33.25%, avg=3005.75, stdev=1124.67, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 lat (msec) : 50=8.33%, 100=16.67%, 250=33.33%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=19.40%, ctx=182, 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=6459KiB/s (6614kB/s), 647KiB/s-3542KiB/s (662kB/s-3626kB/s), io=20.0MiB (20.0MB), run=2024-3171msec WRITE: bw=9042KiB/s (9259kB/s), 1938KiB/s-3233KiB/s (1984kB/s-3311kB/s), io=28.0MiB (29.4MB), run=2024-3171msec 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=189475: Sun Sep 13 13:10:36 2026 read: IOPS=1, BW=5788KiB/s (5927kB/s)(12.0MiB/2123msec) clat (msec): min=266, max=1427, avg=687.11, stdev=643.04 lat (msec): min=266, max=1427, avg=687.12, stdev=643.04 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 1435], 80.00th=[ 1435], 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= 8192, max= 8192, per=100.00%, 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%, 2000=33.33% cpu : usr=0.00%, sys=14.14%, ctx=96, 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=189477: Sun Sep 13 13:10:36 2026 read: IOPS=0, BW=2010KiB/s (2058kB/s)(4096KiB/2038msec) clat (nsec): min=1117.4M, max=1117.4M, avg=1117392430.00, stdev= 0.00 lat (nsec): min=1117.4M, max=1117.4M, avg=1117393239.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1116], 5.00th=[ 1116], 10.00th=[ 1116], 20.00th=[ 1116], | 30.00th=[ 1116], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1116], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=4020KiB/s (4116kB/s)(8192KiB/2038msec); 0 zone resets clat (msec): min=364, max=521, avg=443.14, stdev=111.03 lat (msec): min=364, max=521, avg=443.37, stdev=111.18 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 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= 8192, max= 8192, per=51.00%, 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%, 2000=33.33% cpu : usr=0.10%, sys=19.39%, ctx=86, 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=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=189479: Sun Sep 13 13:10:36 2026 write: IOPS=1, BW=6642KiB/s (6802kB/s)(12.0MiB/1850msec); 0 zone resets clat (msec): min=422, max=723, avg=600.58, stdev=157.86 lat (msec): min=422, max=723, avg=600.87, stdev=157.86 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8192, max= 8192, per=51.00%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=23.36%, ctx=86, 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=189480: Sun Sep 13 13:10:36 2026 write: IOPS=1, BW=6024KiB/s (6168kB/s)(12.0MiB/2040msec); 0 zone resets clat (msec): min=266, max=1467, avg=669.56, stdev=691.38 lat (msec): min=266, max=1468, avg=669.86, stdev=691.35 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min=11603, max=11603, per=72.24%, avg=11603.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=15.25%, ctx=83, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7717KiB/s (7903kB/s), 2010KiB/s-5788KiB/s (2058kB/s-5927kB/s), io=16.0MiB (16.8MB), run=2038-2123msec WRITE: bw=15.7MiB/s (16.4MB/s), 4020KiB/s-6642KiB/s (4116kB/s-6802kB/s), io=32.0MiB (33.6MB), run=1850-2040msec rand-rw: (groupid=0, jobs=1): err= 0: pid=189473: Sun Sep 13 13:10:37 2026 read: IOPS=1, BW=7690KiB/s (7874kB/s)(12.0MiB/1598msec) clat (msec): min=432, max=651, avg=518.65, stdev=116.40 lat (msec): min=432, max=651, avg=518.65, stdev=116.40 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 5626, max= 8192, per=72.87%, avg=6909.00, stdev=1814.44, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=61.55%, ctx=2960, 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=189474: Sun Sep 13 13:10:37 2026 read: IOPS=0, BW=2370KiB/s (2427kB/s)(4096KiB/1728msec) clat (nsec): min=463591k, max=463591k, avg=463590793.00, stdev= 0.00 lat (nsec): min=463593k, max=463593k, avg=463593156.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7742, max= 7742, per=81.66%, avg=7742.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4741KiB/s (4855kB/s)(8192KiB/1728msec); 0 zone resets clat (msec): min=622, max=633, avg=628.04, stdev= 7.87 lat (msec): min=622, max=633, avg=628.23, stdev= 7.79 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 634], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 8159, max= 8159, per=56.55%, 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=66.67% cpu : usr=0.00%, sys=27.56%, ctx=732, 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=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=189476: Sun Sep 13 13:10:37 2026 write: IOPS=1, BW=5411KiB/s (5541kB/s)(12.0MiB/2271msec); 0 zone resets clat (msec): min=75, max=1824, avg=749.53, stdev=940.97 lat (msec): min=75, max=1824, avg=749.82, stdev=941.01 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 75], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min=16351, max=16351, per=100.00%, avg=16351.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.04%, sys=12.64%, ctx=79, 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=189478: Sun Sep 13 13:10:37 2026 write: IOPS=1, BW=5563KiB/s (5696kB/s)(12.0MiB/2209msec); 0 zone resets clat (msec): min=422, max=1192, avg=723.89, stdev=411.05 lat (msec): min=422, max=1192, avg=724.29, stdev=411.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 5680, max= 8192, per=48.07%, avg=6936.00, stdev=1776.25, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.99%, ctx=290, 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=9481KiB/s (9709kB/s), 2370KiB/s-7690KiB/s (2427kB/s-7874kB/s), io=16.0MiB (16.8MB), run=1598-1728msec WRITE: bw=14.1MiB/s (14.8MB/s), 4741KiB/s-5563KiB/s (4855kB/s-5696kB/s), io=32.0MiB (33.6MB), run=1728-2271msec