== sanity test 398b: DIO and buffer IO race ============== 23:06:48 (1775876808) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.39637 s, 21.0 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=182284: Fri Apr 10 23:07:41 2026 read: IOPS=33, BW=136KiB/s (139kB/s)(5992KiB/44127msec) clat (usec): min=46, max=552309, avg=15958.27, stdev=16071.36 lat (usec): min=46, max=552310, avg=15958.92, stdev=16071.39 clat percentiles (usec): | 1.00th=[ 96], 5.00th=[ 6521], 10.00th=[ 7898], 20.00th=[ 9372], | 30.00th=[ 10683], 40.00th=[ 12387], 50.00th=[ 14091], 60.00th=[ 16057], | 70.00th=[ 18482], 80.00th=[ 20841], 90.00th=[ 25297], 95.00th=[ 30278], | 99.00th=[ 42206], 99.50th=[ 49021], 99.90th=[ 85459], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 48, max= 207, per=25.54%, avg=137.17, stdev=27.44, samples=86 iops : min= 12, max= 51, avg=33.93, stdev= 6.87, samples=86 write: IOPS=35, BW=143KiB/s (146kB/s)(6296KiB/44127msec); 0 zone resets clat (usec): min=749, max=96660, avg=12760.39, stdev=10022.20 lat (usec): min=750, max=96661, avg=12762.31, stdev=10021.23 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 2212], 10.00th=[ 2671], 20.00th=[ 3294], | 30.00th=[ 5276], 40.00th=[ 8455], 50.00th=[10683], 60.00th=[13173], | 70.00th=[16057], 80.00th=[20579], 90.00th=[27132], 95.00th=[30802], | 99.00th=[42206], 99.50th=[47973], 99.90th=[70779], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 71, max= 216, per=25.52%, avg=143.40, stdev=32.93, samples=86 iops : min= 17, max= 54, avg=35.49, stdev= 8.27, samples=86 lat (usec) : 50=0.03%, 100=0.52%, 250=0.55%, 750=0.07%, 1000=0.42% lat (msec) : 2=1.43%, 4=11.07%, 10=22.14%, 20=41.80%, 50=21.55% lat (msec) : 100=0.39%, 750=0.03% cpu : usr=0.12%, sys=24.42%, ctx=8628, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182285: Fri Apr 10 23:07:41 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(5940KiB/44062msec) clat (usec): min=46, max=76607, avg=15590.83, stdev=8040.79 lat (usec): min=47, max=76607, avg=15591.47, stdev=8040.81 clat percentiles (usec): | 1.00th=[ 98], 5.00th=[ 6849], 10.00th=[ 7898], 20.00th=[ 9372], | 30.00th=[10814], 40.00th=[12256], 50.00th=[14353], 60.00th=[16319], | 70.00th=[18482], 80.00th=[20579], 90.00th=[24773], 95.00th=[30016], | 99.00th=[43254], 99.50th=[52167], 99.90th=[74974], 99.95th=[77071], | 99.99th=[77071] bw ( KiB/s): min= 6, max= 199, per=25.08%, avg=134.66, stdev=33.40, samples=87 iops : min= 1, max= 49, avg=33.30, stdev= 8.41, samples=87 write: IOPS=36, BW=144KiB/s (148kB/s)(6348KiB/44062msec); 0 zone resets clat (usec): min=784, max=542040, avg=13092.57, stdev=16759.33 lat (usec): min=785, max=542041, avg=13093.39, stdev=16759.37 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 2343], 10.00th=[ 2671], 20.00th=[ 3228], | 30.00th=[ 5342], 40.00th=[ 8455], 50.00th=[ 10552], 60.00th=[ 12649], | 70.00th=[ 15795], 80.00th=[ 20579], 90.00th=[ 26870], 95.00th=[ 32113], | 99.00th=[ 48497], 99.50th=[ 50594], 99.90th=[ 70779], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 71, max= 215, per=25.80%, avg=144.98, stdev=31.69, samples=86 iops : min= 17, max= 53, avg=35.88, stdev= 7.92, samples=86 lat (usec) : 50=0.03%, 100=0.55%, 250=0.52%, 1000=0.23% lat (msec) : 2=1.20%, 4=11.56%, 10=22.72%, 20=41.41%, 50=21.26% lat (msec) : 100=0.49%, 750=0.03% cpu : usr=0.15%, sys=24.40%, ctx=8584, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182286: Fri Apr 10 23:07:41 2026 read: IOPS=34, BW=138KiB/s (141kB/s)(6028KiB/43772msec) clat (usec): min=59, max=88531, avg=15493.96, stdev=8187.15 lat (usec): min=60, max=88531, avg=15494.68, stdev=8187.17 clat percentiles (usec): | 1.00th=[ 88], 5.00th=[ 6587], 10.00th=[ 7832], 20.00th=[ 9372], | 30.00th=[10814], 40.00th=[12387], 50.00th=[14091], 60.00th=[16057], | 70.00th=[17957], 80.00th=[20841], 90.00th=[24511], 95.00th=[29230], | 99.00th=[42730], 99.50th=[51643], 99.90th=[68682], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 40, max= 200, per=25.99%, avg=139.59, stdev=28.72, samples=86 iops : min= 10, max= 50, avg=34.53, stdev= 7.25, samples=86 write: IOPS=35, BW=143KiB/s (146kB/s)(6260KiB/43772msec); 0 zone resets clat (usec): min=697, max=593554, avg=12969.14, stdev=17713.46 lat (usec): min=697, max=593555, avg=12970.08, stdev=17713.47 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 2278], 10.00th=[ 2638], 20.00th=[ 3195], | 30.00th=[ 4817], 40.00th=[ 8160], 50.00th=[ 10552], 60.00th=[ 13042], | 70.00th=[ 16319], 80.00th=[ 20579], 90.00th=[ 26346], 95.00th=[ 31327], | 99.00th=[ 43779], 99.50th=[ 50070], 99.90th=[ 74974], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 71, max= 224, per=25.78%, avg=144.88, stdev=34.91, samples=86 iops : min= 17, max= 56, avg=35.86, stdev= 8.74, samples=86 lat (usec) : 100=0.68%, 250=0.42%, 750=0.07%, 1000=0.16% lat (msec) : 2=1.76%, 4=11.91%, 10=20.93%, 20=42.38%, 50=21.16% lat (msec) : 100=0.49%, 750=0.03% cpu : usr=0.13%, sys=24.30%, ctx=8469, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182287: Fri Apr 10 23:07:41 2026 read: IOPS=33, BW=135KiB/s (139kB/s)(6052KiB/44675msec) clat (usec): min=40, max=78244, avg=15613.20, stdev=7869.92 lat (usec): min=40, max=78245, avg=15613.90, stdev=7869.93 clat percentiles (usec): | 1.00th=[ 99], 5.00th=[ 6325], 10.00th=[ 7635], 20.00th=[ 9241], | 30.00th=[10814], 40.00th=[12387], 50.00th=[14484], 60.00th=[16450], | 70.00th=[18744], 80.00th=[21103], 90.00th=[25035], 95.00th=[30278], | 99.00th=[40633], 99.50th=[45351], 99.90th=[52691], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 63, max= 191, per=25.30%, avg=135.87, stdev=28.31, samples=87 iops : min= 15, max= 47, avg=33.61, stdev= 7.08, samples=87 write: IOPS=34, BW=140KiB/s (143kB/s)(6236KiB/44675msec); 0 zone resets clat (usec): min=804, max=551890, avg=13421.56, stdev=17079.52 lat (usec): min=805, max=551890, avg=13422.45, stdev=17079.52 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 2245], 10.00th=[ 2638], 20.00th=[ 3261], | 30.00th=[ 5735], 40.00th=[ 8979], 50.00th=[ 11076], 60.00th=[ 13173], | 70.00th=[ 16188], 80.00th=[ 21103], 90.00th=[ 26608], 95.00th=[ 32637], | 99.00th=[ 47973], 99.50th=[ 54264], 99.90th=[ 67634], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 6, max= 256, per=24.64%, avg=138.49, stdev=36.69, samples=88 iops : min= 1, max= 64, avg=34.26, stdev= 9.25, samples=88 lat (usec) : 50=0.07%, 100=0.46%, 250=0.59%, 500=0.03%, 1000=0.20% lat (msec) : 2=1.43%, 4=11.49%, 10=20.70%, 20=41.76%, 50=22.75% lat (msec) : 100=0.49%, 750=0.03% cpu : usr=0.11%, sys=24.17%, ctx=8643, 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=537KiB/s (550kB/s), 135KiB/s-138KiB/s (138kB/s-141kB/s), io=23.4MiB (24.6MB), run=43772-44675msec WRITE: bw=563KiB/s (576kB/s), 140KiB/s-144KiB/s (143kB/s-148kB/s), io=24.6MiB (25.7MB), run=43772-44675msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182279: Fri Apr 10 23:07:47 2026 read: IOPS=29, BW=118KiB/s (121kB/s)(5992KiB/50606msec) clat (msec): min=2, max=553, avg=14.22, stdev=17.63 lat (msec): min=2, max=553, avg=14.22, stdev=17.63 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 9], 50.00th=[ 11], 60.00th=[ 13], | 70.00th=[ 16], 80.00th=[ 21], 90.00th=[ 31], 95.00th=[ 37], | 99.00th=[ 52], 99.50th=[ 57], 99.90th=[ 85], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 39, max= 384, per=25.27%, avg=118.49, stdev=77.57, samples=99 iops : min= 9, max= 96, avg=29.29, stdev=19.49, samples=99 write: IOPS=31, BW=124KiB/s (127kB/s)(6296KiB/50606msec); 0 zone resets clat (msec): min=4, max=123, avg=18.52, stdev=12.65 lat (msec): min=4, max=123, avg=18.52, stdev=12.65 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 28], 90.00th=[ 35], 95.00th=[ 42], | 99.00th=[ 61], 99.50th=[ 68], 99.90th=[ 85], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 55, max= 416, per=25.27%, avg=124.08, stdev=77.37, samples=99 iops : min= 13, max= 104, avg=30.69, stdev=19.45, samples=99 lat (msec) : 4=2.08%, 10=37.17%, 20=31.67%, 50=27.21%, 100=1.79% lat (msec) : 250=0.03%, 750=0.03% cpu : usr=0.13%, sys=13.08%, ctx=5605, 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=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=182280: Fri Apr 10 23:07:47 2026 read: IOPS=29, BW=116KiB/s (119kB/s)(5940KiB/51131msec) clat (msec): min=2, max=576, avg=14.75, stdev=19.06 lat (msec): min=2, max=576, avg=14.75, stdev=19.06 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 9], 50.00th=[ 11], 60.00th=[ 13], | 70.00th=[ 16], 80.00th=[ 22], 90.00th=[ 33], 95.00th=[ 41], | 99.00th=[ 58], 99.50th=[ 67], 99.90th=[ 105], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 47, max= 408, per=24.74%, avg=116.04, stdev=80.72, samples=100 iops : min= 11, max= 102, avg=28.68, stdev=20.30, samples=100 write: IOPS=31, BW=124KiB/s (127kB/s)(6348KiB/51131msec); 0 zone resets clat (usec): min=4379, max=91985, avg=18319.93, stdev=12814.31 lat (usec): min=4380, max=91986, avg=18320.81, stdev=12814.35 clat percentiles (usec): | 1.00th=[ 5080], 5.00th=[ 5800], 10.00th=[ 6325], 20.00th=[ 7373], | 30.00th=[ 8848], 40.00th=[11338], 50.00th=[14222], 60.00th=[18220], | 70.00th=[22938], 80.00th=[28705], 90.00th=[35390], 95.00th=[41681], | 99.00th=[60556], 99.50th=[70779], 99.90th=[84411], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 23, max= 352, per=25.03%, avg=122.91, stdev=78.33, samples=100 iops : min= 5, max= 88, avg=30.40, stdev=19.70, samples=100 lat (msec) : 4=2.86%, 10=39.49%, 20=28.42%, 50=26.95%, 100=2.21% lat (msec) : 250=0.03%, 750=0.03% cpu : usr=0.08%, sys=12.70%, ctx=5496, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182281: Fri Apr 10 23:07:47 2026 read: IOPS=29, BW=118KiB/s (121kB/s)(6028KiB/51105msec) clat (usec): min=2902, max=76301, avg=14185.83, stdev=11559.71 lat (usec): min=2903, max=76301, avg=14186.55, stdev=11559.75 clat percentiles (usec): | 1.00th=[ 3359], 5.00th=[ 4080], 10.00th=[ 4424], 20.00th=[ 5080], | 30.00th=[ 6128], 40.00th=[ 8356], 50.00th=[10159], 60.00th=[12387], | 70.00th=[15926], 80.00th=[21627], 90.00th=[31327], 95.00th=[37487], | 99.00th=[52691], 99.50th=[63177], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 39, max= 384, per=25.10%, avg=117.72, stdev=79.94, samples=100 iops : min= 9, max= 96, avg=29.10, stdev=20.09, samples=100 write: IOPS=30, BW=122KiB/s (125kB/s)(6260KiB/51105msec); 0 zone resets clat (msec): min=4, max=587, avg=18.89, stdev=19.44 lat (msec): min=4, max=587, avg=18.89, stdev=19.44 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 19], | 70.00th=[ 24], 80.00th=[ 29], 90.00th=[ 36], 95.00th=[ 42], | 99.00th=[ 61], 99.50th=[ 75], 99.90th=[ 129], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 31, max= 360, per=24.82%, avg=121.87, stdev=78.93, samples=100 iops : min= 7, max= 90, avg=30.14, stdev=19.85, samples=100 lat (msec) : 4=2.02%, 10=39.91%, 20=27.99%, 50=28.09%, 100=1.89% lat (msec) : 250=0.07%, 750=0.03% cpu : usr=0.10%, sys=12.65%, ctx=5612, 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=182282: Fri Apr 10 23:07:47 2026 read: IOPS=29, BW=119KiB/s (122kB/s)(6052KiB/50957msec) clat (usec): min=2825, max=91089, avg=14307.12, stdev=11989.82 lat (usec): min=2826, max=91089, avg=14307.78, stdev=11989.84 clat percentiles (usec): | 1.00th=[ 3392], 5.00th=[ 4015], 10.00th=[ 4424], 20.00th=[ 5014], | 30.00th=[ 6063], 40.00th=[ 8586], 50.00th=[10421], 60.00th=[12518], | 70.00th=[15664], 80.00th=[21890], 90.00th=[31589], 95.00th=[39060], | 99.00th=[52691], 99.50th=[70779], 99.90th=[81265], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 31, max= 416, per=25.33%, avg=118.82, stdev=80.02, samples=100 iops : min= 7, max= 104, avg=29.38, stdev=20.11, samples=100 write: IOPS=30, BW=122KiB/s (125kB/s)(6236KiB/50957msec); 0 zone resets clat (msec): min=4, max=590, avg=18.70, stdev=19.17 lat (msec): min=4, max=590, avg=18.70, stdev=19.17 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 19], | 70.00th=[ 24], 80.00th=[ 29], 90.00th=[ 36], 95.00th=[ 41], | 99.00th=[ 54], 99.50th=[ 70], 99.90th=[ 123], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 48, max= 376, per=24.98%, avg=122.67, stdev=80.73, samples=100 iops : min= 12, max= 94, avg=30.34, stdev=20.28, samples=100 lat (msec) : 4=2.34%, 10=39.32%, 20=28.68%, 50=27.99%, 100=1.56% lat (msec) : 250=0.07%, 750=0.03% cpu : usr=0.13%, sys=12.76%, ctx=5531, 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=470KiB/s (481kB/s), 116KiB/s-119KiB/s (119kB/s-122kB/s), io=23.4MiB (24.6MB), run=50606-51131msec WRITE: bw=492KiB/s (503kB/s), 122KiB/s-124KiB/s (125kB/s-127kB/s), io=24.6MiB (25.7MB), run=50606-51131msec 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=182315: Fri Apr 10 23:08:06 2026 read: IOPS=28, BW=461KiB/s (473kB/s)(5920KiB/12828msec) clat (usec): min=42, max=49680, avg=17224.29, stdev=8735.50 lat (usec): min=42, max=49681, avg=17224.89, stdev=8735.52 clat percentiles (usec): | 1.00th=[ 74], 5.00th=[ 115], 10.00th=[ 8979], 20.00th=[10945], | 30.00th=[12911], 40.00th=[14615], 50.00th=[16450], 60.00th=[18482], | 70.00th=[20317], 80.00th=[23725], 90.00th=[28967], 95.00th=[33424], | 99.00th=[44827], 99.50th=[47449], 99.90th=[49546], 99.95th=[49546], | 99.99th=[49546] bw ( KiB/s): min= 287, max= 672, per=24.95%, avg=458.04, stdev=97.77, samples=25 iops : min= 17, max= 42, avg=28.24, stdev= 6.21, samples=25 write: IOPS=31, BW=496KiB/s (508kB/s)(6368KiB/12828msec); 0 zone resets clat (usec): min=982, max=80828, avg=16162.70, stdev=11161.25 lat (usec): min=982, max=80829, avg=16163.85, stdev=11161.28 clat percentiles (usec): | 1.00th=[ 2024], 5.00th=[ 3392], 10.00th=[ 3949], 20.00th=[ 5276], | 30.00th=[ 8586], 40.00th=[11469], 50.00th=[14484], 60.00th=[16909], | 70.00th=[20055], 80.00th=[25035], 90.00th=[31327], 95.00th=[37487], | 99.00th=[48497], 99.50th=[65799], 99.90th=[81265], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 288, max= 640, per=25.68%, avg=495.84, stdev=103.09, samples=25 iops : min= 18, max= 40, avg=30.60, stdev= 6.46, samples=25 lat (usec) : 50=0.13%, 100=1.30%, 250=1.82%, 500=0.13%, 1000=0.13% lat (msec) : 2=0.39%, 4=4.82%, 10=16.15%, 20=43.49%, 50=31.38% lat (msec) : 100=0.26% cpu : usr=0.07%, sys=25.98%, ctx=2375, 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=182316: Fri Apr 10 23:08:06 2026 read: IOPS=27, BW=440KiB/s (451kB/s)(5744KiB/13045msec) clat (usec): min=63, max=52714, avg=18002.02, stdev=8893.25 lat (usec): min=64, max=52714, avg=18002.88, stdev=8893.42 clat percentiles (usec): | 1.00th=[ 90], 5.00th=[ 122], 10.00th=[ 8455], 20.00th=[11338], | 30.00th=[13304], 40.00th=[15664], 50.00th=[17433], 60.00th=[19792], | 70.00th=[21890], 80.00th=[24511], 90.00th=[29492], 95.00th=[33162], | 99.00th=[46924], 99.50th=[49546], 99.90th=[52691], 99.95th=[52691], | 99.99th=[52691] bw ( KiB/s): min= 128, max= 637, per=23.89%, avg=438.56, stdev=119.94, samples=25 iops : min= 8, max= 39, avg=27.04, stdev= 7.51, samples=25 write: IOPS=31, BW=502KiB/s (514kB/s)(6544KiB/13045msec); 0 zone resets clat (usec): min=1161, max=69390, avg=15941.25, stdev=11487.65 lat (usec): min=1163, max=69391, avg=15942.39, stdev=11487.65 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 3589], 10.00th=[ 3916], 20.00th=[ 5145], | 30.00th=[ 8586], 40.00th=[11207], 50.00th=[13042], 60.00th=[16057], | 70.00th=[19530], 80.00th=[23987], 90.00th=[31851], 95.00th=[37487], | 99.00th=[51643], 99.50th=[54789], 99.90th=[69731], 99.95th=[69731], | 99.99th=[69731] bw ( KiB/s): min= 159, max= 704, per=25.24%, avg=487.44, stdev=122.39, samples=25 iops : min= 9, max= 44, avg=30.08, stdev= 7.69, samples=25 lat (usec) : 100=1.17%, 250=1.69% lat (msec) : 2=0.78%, 4=5.34%, 10=16.54%, 20=40.76%, 50=32.68% lat (msec) : 100=1.04% cpu : usr=0.11%, sys=26.03%, ctx=2504, 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=182317: Fri Apr 10 23:08:06 2026 read: IOPS=30, BW=487KiB/s (499kB/s)(6256KiB/12844msec) clat (usec): min=43, max=50262, avg=18201.42, stdev=8796.73 lat (usec): min=44, max=50262, avg=18202.12, stdev=8796.76 clat percentiles (usec): | 1.00th=[ 80], 5.00th=[ 5538], 10.00th=[ 9503], 20.00th=[11600], | 30.00th=[13042], 40.00th=[15008], 50.00th=[17433], 60.00th=[19268], | 70.00th=[21890], 80.00th=[24773], 90.00th=[28967], 95.00th=[34341], | 99.00th=[42730], 99.50th=[48497], 99.90th=[50070], 99.95th=[50070], | 99.99th=[50070] bw ( KiB/s): min= 288, max= 701, per=26.54%, avg=487.20, stdev=119.08, samples=25 iops : min= 18, max= 43, avg=30.08, stdev= 7.48, samples=25 write: IOPS=29, BW=470KiB/s (481kB/s)(6032KiB/12844msec); 0 zone resets clat (usec): min=1325, max=68794, avg=14995.67, stdev=10514.24 lat (usec): min=1326, max=68796, avg=14996.97, stdev=10514.33 clat percentiles (usec): | 1.00th=[ 2114], 5.00th=[ 3458], 10.00th=[ 4015], 20.00th=[ 5669], | 30.00th=[ 8225], 40.00th=[10290], 50.00th=[12649], 60.00th=[15139], | 70.00th=[18482], 80.00th=[22152], 90.00th=[29754], 95.00th=[34866], | 99.00th=[50594], 99.50th=[59507], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 255, max= 672, per=23.88%, avg=461.16, stdev=119.05, samples=25 iops : min= 15, max= 42, avg=28.44, stdev= 7.53, samples=25 lat (usec) : 50=0.13%, 100=0.91%, 250=1.17% lat (msec) : 2=0.52%, 4=4.43%, 10=17.84%, 20=44.79%, 50=29.56% lat (msec) : 100=0.65% cpu : usr=0.12%, sys=26.07%, ctx=2474, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182318: Fri Apr 10 23:08:06 2026 read: IOPS=29, BW=467KiB/s (478kB/s)(6032KiB/12927msec) clat (usec): min=51, max=56180, avg=17750.91, stdev=9613.05 lat (usec): min=51, max=56181, avg=17751.54, stdev=9613.06 clat percentiles (usec): | 1.00th=[ 95], 5.00th=[ 119], 10.00th=[ 7963], 20.00th=[10421], | 30.00th=[12387], 40.00th=[14877], 50.00th=[17171], 60.00th=[19792], | 70.00th=[21627], 80.00th=[24773], 90.00th=[28705], 95.00th=[35390], | 99.00th=[46400], 99.50th=[55313], 99.90th=[56361], 99.95th=[56361], | 99.99th=[56361] bw ( KiB/s): min= 319, max= 608, per=25.29%, avg=464.36, stdev=88.52, samples=25 iops : min= 19, max= 38, avg=28.64, stdev= 5.60, samples=25 write: IOPS=30, BW=484KiB/s (496kB/s)(6256KiB/12927msec); 0 zone resets clat (usec): min=2258, max=80277, avg=15790.74, stdev=11643.62 lat (usec): min=2258, max=80279, avg=15796.33, stdev=11648.09 clat percentiles (usec): | 1.00th=[ 2802], 5.00th=[ 3654], 10.00th=[ 4228], 20.00th=[ 5145], | 30.00th=[ 7832], 40.00th=[10552], 50.00th=[12911], 60.00th=[15926], | 70.00th=[19792], 80.00th=[23987], 90.00th=[31327], 95.00th=[36439], | 99.00th=[58459], 99.50th=[66323], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 287, max= 736, per=24.99%, avg=482.56, stdev=116.44, samples=25 iops : min= 17, max= 46, avg=29.80, stdev= 7.31, samples=25 lat (usec) : 100=1.04%, 250=2.60%, 500=0.13% lat (msec) : 4=4.30%, 10=19.79%, 20=37.63%, 50=33.46%, 100=1.04% cpu : usr=0.12%, sys=25.91%, ctx=2472, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1836KiB/s (1880kB/s), 440KiB/s-487KiB/s (451kB/s-499kB/s), io=23.4MiB (24.5MB), run=12828-13045msec WRITE: bw=1932KiB/s (1978kB/s), 470KiB/s-502KiB/s (481kB/s-514kB/s), io=24.6MiB (25.8MB), run=12828-13045msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182310: Fri Apr 10 23:08:08 2026 read: IOPS=24, BW=397KiB/s (406kB/s)(5920KiB/14922msec) clat (usec): min=3707, max=90687, avg=16434.21, stdev=11984.07 lat (usec): min=3707, max=90688, avg=16435.02, stdev=11984.10 clat percentiles (usec): | 1.00th=[ 4490], 5.00th=[ 5211], 10.00th=[ 6259], 20.00th=[ 7242], | 30.00th=[ 8586], 40.00th=[10683], 50.00th=[12518], 60.00th=[14484], | 70.00th=[18744], 80.00th=[23200], 90.00th=[33817], 95.00th=[40633], | 99.00th=[58983], 99.50th=[68682], 99.90th=[90702], 99.95th=[90702], | 99.99th=[90702] bw ( KiB/s): min= 191, max= 896, per=23.78%, avg=381.38, stdev=183.68, samples=29 iops : min= 11, max= 56, avg=23.38, stdev=11.63, samples=29 write: IOPS=26, BW=427KiB/s (437kB/s)(6368KiB/14922msec); 0 zone resets clat (msec): min=5, max=103, avg=22.08, stdev=13.81 lat (msec): min=5, max=103, avg=22.08, stdev=13.81 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 42], 95.00th=[ 46], | 99.00th=[ 66], 99.50th=[ 74], 99.90th=[ 104], 99.95th=[ 104], | 99.99th=[ 104] bw ( KiB/s): min= 159, max= 992, per=24.77%, avg=418.14, stdev=206.46, samples=29 iops : min= 9, max= 62, avg=25.69, stdev=13.08, samples=29 lat (msec) : 4=0.13%, 10=26.95%, 20=37.37%, 50=33.07%, 100=2.34% lat (msec) : 250=0.13% cpu : usr=0.07%, sys=12.71%, ctx=1494, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182311: Fri Apr 10 23:08:08 2026 read: IOPS=24, BW=385KiB/s (394kB/s)(5744KiB/14925msec) clat (usec): min=4398, max=69854, avg=17134.95, stdev=12093.85 lat (usec): min=4399, max=69855, avg=17135.80, stdev=12093.80 clat percentiles (usec): | 1.00th=[ 4686], 5.00th=[ 5866], 10.00th=[ 6521], 20.00th=[ 7898], | 30.00th=[ 9372], 40.00th=[10945], 50.00th=[12780], 60.00th=[15008], | 70.00th=[18744], 80.00th=[25822], 90.00th=[35914], 95.00th=[43779], | 99.00th=[55313], 99.50th=[67634], 99.90th=[69731], 99.95th=[69731], | 99.99th=[69731] bw ( KiB/s): min= 95, max= 896, per=23.56%, avg=377.86, stdev=181.29, samples=29 iops : min= 5, max= 56, avg=23.17, stdev=11.45, samples=29 write: IOPS=27, BW=438KiB/s (449kB/s)(6544KiB/14925msec); 0 zone resets clat (usec): min=6015, max=86555, avg=21356.23, stdev=12766.40 lat (usec): min=6016, max=86558, avg=21358.03, stdev=12766.63 clat percentiles (usec): | 1.00th=[ 6652], 5.00th=[ 7963], 10.00th=[ 8848], 20.00th=[10552], | 30.00th=[12256], 40.00th=[14222], 50.00th=[17433], 60.00th=[21103], | 70.00th=[26608], 80.00th=[31589], 90.00th=[37487], 95.00th=[45876], | 99.00th=[63177], 99.50th=[70779], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 191, max= 1056, per=24.96%, avg=421.28, stdev=201.38, samples=29 iops : min= 11, max= 66, avg=25.86, stdev=12.80, samples=29 lat (msec) : 10=24.22%, 20=39.32%, 50=33.85%, 100=2.60% cpu : usr=0.09%, sys=12.68%, ctx=1506, 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=182312: Fri Apr 10 23:08:08 2026 read: IOPS=26, BW=419KiB/s (429kB/s)(6256KiB/14925msec) clat (usec): min=3765, max=83712, avg=17236.28, stdev=12977.87 lat (usec): min=3765, max=83713, avg=17237.21, stdev=12977.86 clat percentiles (usec): | 1.00th=[ 4490], 5.00th=[ 5342], 10.00th=[ 6128], 20.00th=[ 7504], | 30.00th=[ 9372], 40.00th=[10945], 50.00th=[12649], 60.00th=[14484], | 70.00th=[18744], 80.00th=[26870], 90.00th=[34866], 95.00th=[44827], | 99.00th=[67634], 99.50th=[78119], 99.90th=[83362], 99.95th=[83362], | 99.99th=[83362] bw ( KiB/s): min= 190, max= 1248, per=25.78%, avg=413.59, stdev=234.85, samples=29 iops : min= 11, max= 78, avg=25.41, stdev=14.82, samples=29 write: IOPS=25, BW=404KiB/s (414kB/s)(6032KiB/14925msec); 0 zone resets clat (usec): min=6008, max=80318, avg=21656.22, stdev=13241.33 lat (usec): min=6009, max=80321, avg=21657.94, stdev=13241.43 clat percentiles (usec): | 1.00th=[ 6718], 5.00th=[ 7701], 10.00th=[ 8586], 20.00th=[10290], | 30.00th=[12649], 40.00th=[14746], 50.00th=[18220], 60.00th=[21890], | 70.00th=[26084], 80.00th=[31065], 90.00th=[40633], 95.00th=[46924], | 99.00th=[65274], 99.50th=[71828], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 159, max= 928, per=22.98%, avg=387.97, stdev=173.13, samples=29 iops : min= 9, max= 58, avg=23.79, stdev=10.98, samples=29 lat (msec) : 4=0.13%, 10=26.43%, 20=37.11%, 50=33.20%, 100=3.12% cpu : usr=0.11%, sys=12.61%, ctx=1419, 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=182313: Fri Apr 10 23:08:08 2026 read: IOPS=25, BW=404KiB/s (414kB/s)(6032KiB/14913msec) clat (usec): min=3721, max=86941, avg=16632.30, stdev=12963.94 lat (usec): min=3722, max=86941, avg=16633.11, stdev=12963.96 clat percentiles (usec): | 1.00th=[ 4555], 5.00th=[ 5276], 10.00th=[ 6063], 20.00th=[ 7242], | 30.00th=[ 8848], 40.00th=[10552], 50.00th=[11863], 60.00th=[13566], | 70.00th=[17695], 80.00th=[22938], 90.00th=[36439], 95.00th=[43779], | 99.00th=[60556], 99.50th=[72877], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 191, max= 1056, per=24.42%, avg=391.69, stdev=205.06, samples=29 iops : min= 11, max= 66, avg=24.03, stdev=12.98, samples=29 write: IOPS=26, BW=419KiB/s (430kB/s)(6256KiB/14913msec); 0 zone resets clat (usec): min=4393, max=85609, avg=22009.00, stdev=13449.58 lat (usec): min=4394, max=85611, avg=22010.55, stdev=13449.52 clat percentiles (usec): | 1.00th=[ 6587], 5.00th=[ 7898], 10.00th=[ 8717], 20.00th=[10552], | 30.00th=[12649], 40.00th=[14877], 50.00th=[18482], 60.00th=[22152], | 70.00th=[27395], 80.00th=[32375], 90.00th=[39584], 95.00th=[45876], | 99.00th=[72877], 99.50th=[84411], 99.90th=[85459], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 191, max= 928, per=24.21%, avg=408.66, stdev=183.87, samples=29 iops : min= 11, max= 58, avg=25.10, stdev=11.64, samples=29 lat (msec) : 4=0.13%, 10=26.82%, 20=37.63%, 50=32.29%, 100=3.12% cpu : usr=0.09%, sys=12.76%, ctx=1449, 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=1605KiB/s (1643kB/s), 385KiB/s-419KiB/s (394kB/s-429kB/s), io=23.4MiB (24.5MB), run=14913-14925msec WRITE: bw=1688KiB/s (1729kB/s), 404KiB/s-438KiB/s (414kB/s-449kB/s), io=24.6MiB (25.8MB), run=14913-14925msec 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=182325: Fri Apr 10 23:08:17 2026 read: IOPS=3, BW=3685KiB/s (3774kB/s)(7168KiB/1945msec) clat (msec): min=48, max=622, avg=155.13, stdev=207.68 lat (msec): min=48, max=622, avg=155.13, stdev=207.68 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 49], 10.00th=[ 49], 20.00th=[ 61], | 30.00th=[ 62], 40.00th=[ 62], 50.00th=[ 75], 60.00th=[ 93], | 70.00th=[ 93], 80.00th=[ 126], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 2048, max= 5163, per=56.14%, avg=3769.00, stdev=1583.04, samples=3 iops : min= 2, max= 5, avg= 3.67, stdev= 1.53, samples=3 write: IOPS=2, BW=2632KiB/s (2696kB/s)(5120KiB/1945msec); 0 zone resets clat (msec): min=55, max=295, avg=162.69, stdev=100.31 lat (msec): min=55, max=295, avg=162.76, stdev=100.31 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 56], | 30.00th=[ 77], 40.00th=[ 77], 50.00th=[ 165], 60.00th=[ 165], | 70.00th=[ 222], 80.00th=[ 222], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 1721, max= 6144, per=41.84%, avg=3932.50, stdev=3127.53, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 lat (msec) : 50=8.33%, 100=50.00%, 250=25.00%, 500=8.33%, 750=8.33% cpu : usr=0.00%, sys=13.48%, ctx=74, 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=182326: Fri Apr 10 23:08:17 2026 read: IOPS=0, BW=792KiB/s (811kB/s)(2048KiB/2586msec) clat (msec): min=30, max=122, avg=76.56, stdev=64.48 lat (msec): min=30, max=122, avg=76.56, stdev=64.48 clat percentiles (msec): | 1.00th=[ 32], 5.00th=[ 32], 10.00th=[ 32], 20.00th=[ 32], | 30.00th=[ 32], 40.00th=[ 32], 50.00th=[ 32], 60.00th=[ 123], | 70.00th=[ 123], 80.00th=[ 123], 90.00th=[ 123], 95.00th=[ 123], | 99.00th=[ 123], 99.50th=[ 123], 99.90th=[ 123], 99.95th=[ 123], | 99.99th=[ 123] bw ( KiB/s): min= 1721, max= 2011, per=27.79%, avg=1866.00, stdev=205.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3960KiB/s (4055kB/s)(10.0MiB/2586msec); 0 zone resets clat (msec): min=62, max=941, avg=242.01, stdev=270.88 lat (msec): min=62, max=941, avg=242.08, stdev=270.88 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 63], 10.00th=[ 63], 20.00th=[ 72], | 30.00th=[ 75], 40.00th=[ 87], 50.00th=[ 93], 60.00th=[ 136], | 70.00th=[ 262], 80.00th=[ 313], 90.00th=[ 380], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 2048, max= 5163, per=35.32%, avg=3320.50, stdev=1541.30, samples=4 iops : min= 2, max= 5, avg= 3.00, stdev= 1.41, samples=4 lat (msec) : 50=8.33%, 100=41.67%, 250=16.67%, 500=25.00%, 1000=8.33% cpu : usr=0.00%, sys=13.46%, ctx=78, 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=182328: Fri Apr 10 23:08:17 2026 read: IOPS=2, BW=2082KiB/s (2132kB/s)(6144KiB/2951msec) clat (msec): min=48, max=458, avg=183.41, stdev=157.13 lat (msec): min=48, max=458, avg=183.42, stdev=157.13 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 50], 10.00th=[ 50], 20.00th=[ 51], | 30.00th=[ 51], 40.00th=[ 96], 50.00th=[ 96], 60.00th=[ 199], | 70.00th=[ 249], 80.00th=[ 249], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 2048, max= 4023, per=40.31%, avg=2706.33, stdev=1140.27, samples=3 iops : min= 2, max= 3, avg= 2.33, stdev= 0.58, samples=3 write: IOPS=2, BW=2082KiB/s (2132kB/s)(6144KiB/2951msec); 0 zone resets clat (msec): min=63, max=836, avg=290.13, stdev=295.57 lat (msec): min=63, max=836, avg=290.21, stdev=295.57 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 88], | 30.00th=[ 88], 40.00th=[ 107], 50.00th=[ 107], 60.00th=[ 253], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 2011, max= 3471, per=26.70%, avg=2510.00, stdev=832.46, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 50=8.33%, 100=33.33%, 250=25.00%, 500=25.00%, 1000=8.33% cpu : usr=0.03%, sys=15.08%, ctx=101, 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=182329: Fri Apr 10 23:08:17 2026 read: IOPS=1, BW=1679KiB/s (1719kB/s)(5120KiB/3050msec) clat (msec): min=20, max=415, avg=160.42, stdev=155.31 lat (msec): min=20, max=415, avg=160.42, stdev=155.31 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 21], 10.00th=[ 21], 20.00th=[ 21], | 30.00th=[ 55], 40.00th=[ 55], 50.00th=[ 136], 60.00th=[ 136], | 70.00th=[ 176], 80.00th=[ 176], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 4023, max= 4096, per=60.46%, avg=4059.50, stdev=51.62, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2350KiB/s (2407kB/s)(7168KiB/3050msec); 0 zone resets clat (msec): min=108, max=901, avg=314.18, stdev=276.20 lat (msec): min=108, max=901, avg=314.24, stdev=276.19 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 140], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 192], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 372], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1735, max= 4096, per=27.81%, avg=2614.00, stdev=1290.85, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 50=8.33%, 100=8.33%, 250=50.00%, 500=25.00%, 1000=8.33% cpu : usr=0.00%, sys=16.33%, ctx=77, 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=6715KiB/s (6876kB/s), 792KiB/s-3685KiB/s (811kB/s-3774kB/s), io=20.0MiB (20.0MB), run=1945-3050msec WRITE: bw=9401KiB/s (9626kB/s), 2082KiB/s-3960KiB/s (2132kB/s-4055kB/s), io=28.0MiB (29.4MB), run=1945-3050msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182330: Fri Apr 10 23:08:17 2026 read: IOPS=3, BW=3481KiB/s (3565kB/s)(7168KiB/2059msec) clat (usec): min=682, max=744823, avg=186104.66, stdev=251509.52 lat (usec): min=683, max=744824, avg=186106.13, stdev=251509.49 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[ 88605], | 30.00th=[ 89654], 40.00th=[ 89654], 50.00th=[ 94897], 60.00th=[111674], | 70.00th=[111674], 80.00th=[173016], 90.00th=[742392], 95.00th=[742392], | 99.00th=[742392], 99.50th=[742392], 99.90th=[742392], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 2048, max= 4096, per=46.17%, avg=3212.67, stdev=1052.59, samples=3 iops : min= 2, max= 4, avg= 3.00, stdev= 1.00, samples=3 write: IOPS=2, BW=2487KiB/s (2546kB/s)(5120KiB/2059msec); 0 zone resets clat (msec): min=71, max=240, avg=137.90, stdev=63.91 lat (msec): min=71, max=240, avg=137.97, stdev=63.92 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 72], | 30.00th=[ 106], 40.00th=[ 106], 50.00th=[ 123], 60.00th=[ 123], | 70.00th=[ 148], 80.00th=[ 148], 90.00th=[ 241], 95.00th=[ 241], | 99.00th=[ 241], 99.50th=[ 241], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 2048, max= 4096, per=31.53%, avg=3072.00, stdev=1448.15, samples=2 iops : min= 2, max= 4, avg= 3.00, stdev= 1.41, samples=2 lat (usec) : 750=8.33% lat (msec) : 100=33.33%, 250=50.00%, 750=8.33% cpu : usr=0.00%, sys=47.28%, ctx=1182, 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=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=182331: Fri Apr 10 23:08:17 2026 read: IOPS=0, BW=696KiB/s (713kB/s)(2048KiB/2943msec) clat (msec): min=100, max=154, avg=127.72, stdev=38.46 lat (msec): min=100, max=154, avg=127.72, stdev=38.46 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 101], 60.00th=[ 155], | 70.00th=[ 155], 80.00th=[ 155], 90.00th=[ 155], 95.00th=[ 155], | 99.00th=[ 155], 99.50th=[ 155], 99.90th=[ 155], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 1732, max= 2048, per=27.16%, avg=1890.00, stdev=223.45, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=3, BW=3479KiB/s (3563kB/s)(10.0MiB/2943msec); 0 zone resets clat (msec): min=57, max=1131, avg=266.91, stdev=325.78 lat (msec): min=57, max=1131, avg=266.98, stdev=325.77 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 61], | 30.00th=[ 67], 40.00th=[ 89], 50.00th=[ 165], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 376], 90.00th=[ 376], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1732, max= 6144, per=35.98%, avg=3505.00, stdev=2047.76, samples=4 iops : min= 1, max= 6, avg= 3.25, stdev= 2.22, samples=4 lat (msec) : 100=33.33%, 250=41.67%, 500=16.67%, 2000=8.33% cpu : usr=0.07%, sys=32.53%, ctx=316, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182332: Fri Apr 10 23:08:17 2026 read: IOPS=2, BW=2530KiB/s (2591kB/s)(6144KiB/2428msec) clat (usec): min=437, max=131746, avg=42866.39, stdev=65667.15 lat (usec): min=437, max=131747, avg=42867.29, stdev=65667.03 clat percentiles (usec): | 1.00th=[ 437], 5.00th=[ 437], 10.00th=[ 437], 20.00th=[ 449], | 30.00th=[ 449], 40.00th=[ 529], 50.00th=[ 529], 60.00th=[ 635], | 70.00th=[123208], 80.00th=[123208], 90.00th=[131597], 95.00th=[131597], | 99.00th=[131597], 99.50th=[131597], 99.90th=[131597], 99.95th=[131597], | 99.99th=[131597] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2530KiB/s (2591kB/s)(6144KiB/2428msec); 0 zone resets clat (msec): min=96, max=1071, avg=346.48, stdev=365.46 lat (msec): min=96, max=1071, avg=346.55, stdev=365.46 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 118], | 30.00th=[ 118], 40.00th=[ 207], 50.00th=[ 207], 60.00th=[ 262], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 1721, max= 4096, per=26.91%, avg=2621.67, stdev=1287.24, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (usec) : 500=16.67%, 750=16.67% lat (msec) : 100=8.33%, 250=33.33%, 500=16.67%, 2000=8.33% cpu : usr=0.04%, sys=34.86%, ctx=412, 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=182333: Fri Apr 10 23:08:17 2026 read: IOPS=1, BW=1870KiB/s (1915kB/s)(5120KiB/2738msec) clat (usec): min=271, max=524, avg=425.53, stdev=104.19 lat (usec): min=271, max=525, avg=426.27, stdev=104.66 clat percentiles (usec): | 1.00th=[ 273], 5.00th=[ 273], 10.00th=[ 273], 20.00th=[ 273], | 30.00th=[ 383], 40.00th=[ 383], 50.00th=[ 437], 60.00th=[ 437], | 70.00th=[ 515], 80.00th=[ 515], 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=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2618KiB/s (2681kB/s)(7168KiB/2738msec); 0 zone resets clat (msec): min=87, max=1172, avg=376.87, stdev=382.94 lat (msec): min=87, max=1172, avg=376.94, stdev=382.93 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 138], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 176], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 531], 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= 2048, max= 6144, per=42.04%, avg=4096.00, stdev=2048.00, samples=3 iops : min= 2, max= 6, avg= 4.00, stdev= 2.00, samples=3 lat (usec) : 500=25.00%, 750=16.67% lat (msec) : 100=8.33%, 250=25.00%, 500=8.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=26.27%, ctx=104, 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=6959KiB/s (7126kB/s), 696KiB/s-3481KiB/s (713kB/s-3565kB/s), io=20.0MiB (20.0MB), run=2059-2943msec WRITE: bw=9742KiB/s (9976kB/s), 2487KiB/s-3479KiB/s (2546kB/s-3563kB/s), io=28.0MiB (29.4MB), run=2059-2943msec 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=182340: Fri Apr 10 23:08:24 2026 read: IOPS=2, BW=9518KiB/s (9747kB/s)(12.0MiB/1291msec) clat (msec): min=365, max=491, avg=417.47, stdev=65.88 lat (msec): min=365, max=491, avg=417.47, stdev=65.88 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 6215, max= 8143, per=61.79%, avg=7179.00, stdev=1363.30, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=45.27%, ctx=2516, 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=182342: Fri Apr 10 23:08:24 2026 read: IOPS=0, BW=2905KiB/s (2975kB/s)(4096KiB/1410msec) clat (nsec): min=416100k, max=416100k, avg=416099617.00, stdev= 0.00 lat (nsec): min=416102k, max=416102k, avg=416101505.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 6140, max= 6140, per=52.84%, avg=6140.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5810KiB/s (5949kB/s)(8192KiB/1410msec); 0 zone resets clat (msec): min=360, max=599, avg=480.41, stdev=169.06 lat (msec): min=361, max=600, avg=480.71, stdev=168.99 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=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 8143, max= 8143, per=40.01%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.07%, sys=25.76%, ctx=718, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182344: Fri Apr 10 23:08:24 2026 write: IOPS=1, BW=7632KiB/s (7815kB/s)(12.0MiB/1610msec); 0 zone resets clat (msec): min=112, max=807, avg=525.27, stdev=365.51 lat (msec): min=112, max=808, avg=525.60, stdev=365.57 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 8143, max= 8143, per=40.01%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=13.61%, ctx=70, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182346: Fri Apr 10 23:08:24 2026 write: IOPS=2, BW=8551KiB/s (8756kB/s)(12.0MiB/1437msec); 0 zone resets clat (msec): min=290, max=763, avg=453.95, stdev=268.14 lat (msec): min=290, max=763, avg=454.13, stdev=268.12 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 309], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 6150, max= 8143, per=35.11%, avg=7146.50, stdev=1409.26, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=16.78%, ctx=81, 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=11.3MiB/s (11.9MB/s), 2905KiB/s-9518KiB/s (2975kB/s-9747kB/s), io=16.0MiB (16.8MB), run=1291-1410msec WRITE: bw=19.9MiB/s (20.8MB/s), 5810KiB/s-8551KiB/s (5949kB/s-8756kB/s), io=32.0MiB (33.6MB), run=1410-1610msec rand-rw: (groupid=0, jobs=1): err= 0: pid=182339: Fri Apr 10 23:08:24 2026 read: IOPS=1, BW=7144KiB/s (7316kB/s)(12.0MiB/1720msec) clat (msec): min=60, max=953, avg=546.41, stdev=451.69 lat (msec): min=60, max=953, avg=546.41, stdev=451.69 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 61], | 30.00th=[ 61], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8175, max= 8192, per=85.92%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 100=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=12.97%, ctx=66, 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=182341: Fri Apr 10 23:08:24 2026 read: IOPS=0, BW=3501KiB/s (3585kB/s)(4096KiB/1170msec) clat (nsec): min=271001k, max=271001k, avg=271001442.00, stdev= 0.00 lat (nsec): min=271006k, max=271006k, avg=271005890.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 6301, max= 6301, per=66.15%, avg=6301.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=7002KiB/s (7170kB/s)(8192KiB/1170msec); 0 zone resets clat (msec): min=287, max=583, avg=435.65, stdev=208.97 lat (msec): min=288, max=583, avg=435.87, stdev=209.08 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 6301, max= 6301, per=28.61%, avg=6301.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=21.47%, ctx=94, 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=182343: Fri Apr 10 23:08:24 2026 write: IOPS=2, BW=8258KiB/s (8456kB/s)(12.0MiB/1488msec); 0 zone resets clat (msec): min=328, max=645, avg=463.89, stdev=163.51 lat (msec): min=328, max=645, avg=464.21, stdev=163.60 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min=16351, max=16351, per=74.25%, avg=16351.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.07%, sys=31.67%, ctx=109, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=182345: Fri Apr 10 23:08:24 2026 write: IOPS=2, BW=9668KiB/s (9900kB/s)(12.0MiB/1271msec); 0 zone resets clat (msec): min=124, max=840, avg=400.60, stdev=384.70 lat (msec): min=125, max=840, avg=400.89, stdev=384.73 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 126], | 30.00th=[ 126], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 236], | 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=11855, max=11855, per=53.83%, avg=11855.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 1000=33.33% cpu : usr=0.00%, sys=20.79%, ctx=112, 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=9526KiB/s (9754kB/s), 3501KiB/s-7144KiB/s (3585kB/s-7316kB/s), io=16.0MiB (16.8MB), run=1170-1720msec WRITE: bw=21.5MiB/s (22.6MB/s), 7002KiB/s-9668KiB/s (7170kB/s-9900kB/s), io=32.0MiB (33.6MB), run=1170-1488msec