== sanity test 398b: DIO and buffer IO race ============== 05:48:52 (1788515332) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.18484 s, 9.7 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=145635: Fri Sep 4 05:50:56 2026 read: IOPS=13, BW=55.0KiB/s (57.3kB/s)(5992KiB/107029msec) clat (usec): min=35, max=684596, avg=34470.67, stdev=33261.21 lat (usec): min=36, max=684597, avg=34471.94, stdev=33261.23 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 55], 10.00th=[ 79], 20.00th=[ 14746], | 30.00th=[ 19006], 40.00th=[ 23200], 50.00th=[ 27919], 60.00th=[ 33424], | 70.00th=[ 40633], 80.00th=[ 51119], 90.00th=[ 66847], 95.00th=[ 83362], | 99.00th=[137364], 99.50th=[198181], 99.90th=[256902], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 7, max= 143, per=25.22%, avg=55.74, stdev=21.79, samples=211 iops : min= 1, max= 35, avg=13.31, stdev= 5.46, samples=211 write: IOPS=14, BW=58.8KiB/s (60.2kB/s)(6296KiB/107029msec); 0 zone resets clat (usec): min=953, max=415897, avg=34963.84, stdev=38003.33 lat (usec): min=954, max=415899, avg=34965.15, stdev=38003.33 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1139], 10.00th=[ 1532], 20.00th=[ 3654], | 30.00th=[ 7373], 40.00th=[ 15926], 50.00th=[ 24249], 60.00th=[ 34866], | 70.00th=[ 45876], 80.00th=[ 58983], 90.00th=[ 82314], 95.00th=[104334], | 99.00th=[166724], 99.50th=[219153], 99.90th=[316670], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 8, max= 111, per=25.47%, avg=58.83, stdev=21.81, samples=210 iops : min= 2, max= 27, avg=14.08, stdev= 5.49, samples=210 lat (usec) : 50=1.27%, 100=4.13%, 250=0.29%, 500=0.16%, 750=0.07% lat (usec) : 1000=0.16% lat (msec) : 2=6.54%, 4=4.30%, 10=7.03%, 20=14.75%, 50=37.30% lat (msec) : 100=19.69%, 250=4.10%, 500=0.16%, 750=0.03% cpu : usr=0.08%, sys=5.97%, ctx=6491, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145636: Fri Sep 4 05:50:56 2026 read: IOPS=13, BW=54.9KiB/s (56.3kB/s)(5940KiB/108124msec) clat (usec): min=26, max=789942, avg=34759.94, stdev=33713.36 lat (usec): min=26, max=789942, avg=34761.61, stdev=33713.58 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 56], 10.00th=[ 94], 20.00th=[ 14615], | 30.00th=[ 19792], 40.00th=[ 24249], 50.00th=[ 29230], 60.00th=[ 34866], | 70.00th=[ 41157], 80.00th=[ 52691], 90.00th=[ 66847], 95.00th=[ 81265], | 99.00th=[128451], 99.50th=[145753], 99.90th=[304088], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 128, per=24.71%, avg=54.60, stdev=23.10, samples=213 iops : min= 1, max= 32, avg=13.02, stdev= 5.77, samples=213 write: IOPS=14, BW=58.7KiB/s (60.1kB/s)(6348KiB/108124msec); 0 zone resets clat (usec): min=865, max=410405, avg=35386.10, stdev=39025.83 lat (usec): min=866, max=410406, avg=35387.56, stdev=39025.84 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1188], 10.00th=[ 1565], 20.00th=[ 3097], | 30.00th=[ 6456], 40.00th=[ 15270], 50.00th=[ 24773], 60.00th=[ 35390], | 70.00th=[ 47449], 80.00th=[ 63177], 90.00th=[ 83362], 95.00th=[101188], | 99.00th=[160433], 99.50th=[193987], 99.90th=[400557], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 7, max= 152, per=25.18%, avg=58.15, stdev=24.80, samples=213 iops : min= 1, max= 38, avg=13.92, stdev= 6.25, samples=213 lat (usec) : 50=0.91%, 100=4.07%, 250=0.59%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.36% lat (msec) : 2=7.00%, 4=4.75%, 10=6.77%, 20=13.09%, 50=37.27% lat (msec) : 100=21.06%, 250=3.68%, 500=0.23%, 1000=0.03% cpu : usr=0.09%, sys=6.30%, ctx=6546, 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=145637: Fri Sep 4 05:50:56 2026 read: IOPS=14, BW=56.1KiB/s (57.5kB/s)(6028KiB/107414msec) clat (usec): min=32, max=231766, avg=32741.44, stdev=25368.32 lat (usec): min=32, max=231766, avg=32749.46, stdev=25380.44 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 55], 10.00th=[ 80], 20.00th=[ 14484], | 30.00th=[ 19006], 40.00th=[ 22938], 50.00th=[ 27657], 60.00th=[ 32900], | 70.00th=[ 40109], 80.00th=[ 49546], 90.00th=[ 63701], 95.00th=[ 79168], | 99.00th=[116917], 99.50th=[133694], 99.90th=[181404], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 7, max= 119, per=25.34%, avg=56.00, stdev=23.08, samples=210 iops : min= 1, max= 29, avg=13.37, stdev= 5.78, samples=210 write: IOPS=14, BW=58.3KiB/s (59.7kB/s)(6260KiB/107414msec); 0 zone resets clat (usec): min=965, max=772553, avg=36870.39, stdev=42242.71 lat (usec): min=966, max=772554, avg=36873.00, stdev=42243.78 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1811], 20.00th=[ 4113], | 30.00th=[ 7439], 40.00th=[ 17171], 50.00th=[ 25822], 60.00th=[ 36439], | 70.00th=[ 48497], 80.00th=[ 64226], 90.00th=[ 86508], 95.00th=[107480], | 99.00th=[166724], 99.50th=[206570], 99.90th=[295699], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 15, max= 126, per=25.03%, avg=57.82, stdev=21.43, samples=211 iops : min= 3, max= 31, avg=13.83, stdev= 5.38, samples=211 lat (usec) : 50=0.94%, 100=4.36%, 250=0.26%, 500=0.03%, 1000=0.10% lat (msec) : 2=5.66%, 4=4.39%, 10=8.20%, 20=13.67%, 50=37.92% lat (msec) : 100=20.18%, 250=4.13%, 500=0.10%, 1000=0.03% cpu : usr=0.09%, sys=5.96%, ctx=6484, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145638: Fri Sep 4 05:50:56 2026 read: IOPS=13, BW=55.8KiB/s (57.2kB/s)(6052KiB/108406msec) clat (usec): min=30, max=286675, avg=33523.35, stdev=26452.56 lat (usec): min=30, max=286675, avg=33525.40, stdev=26453.26 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 102], 20.00th=[ 14091], | 30.00th=[ 19268], 40.00th=[ 23462], 50.00th=[ 28181], 60.00th=[ 33817], | 70.00th=[ 40633], 80.00th=[ 51119], 90.00th=[ 67634], 95.00th=[ 82314], | 99.00th=[114820], 99.50th=[132645], 99.90th=[240124], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 127, per=25.04%, avg=55.34, stdev=21.32, samples=213 iops : min= 1, max= 31, avg=13.21, stdev= 5.37, samples=213 write: IOPS=14, BW=57.5KiB/s (58.9kB/s)(6236KiB/108406msec); 0 zone resets clat (usec): min=930, max=778943, avg=36764.60, stdev=42739.64 lat (usec): min=930, max=778944, avg=36766.09, stdev=42739.89 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1172], 10.00th=[ 1631], 20.00th=[ 3490], | 30.00th=[ 8291], 40.00th=[ 18220], 50.00th=[ 26346], 60.00th=[ 35390], | 70.00th=[ 46924], 80.00th=[ 61080], 90.00th=[ 87557], 95.00th=[107480], | 99.00th=[181404], 99.50th=[202376], 99.90th=[392168], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 7, max= 151, per=24.71%, avg=57.09, stdev=21.37, samples=213 iops : min= 1, max= 37, avg=13.65, stdev= 5.36, samples=213 lat (usec) : 50=1.30%, 100=3.61%, 250=0.55%, 500=0.16%, 750=0.10% lat (usec) : 1000=0.33% lat (msec) : 2=6.22%, 4=4.88%, 10=6.18%, 20=13.74%, 50=38.67% lat (msec) : 100=19.99%, 250=4.10%, 500=0.13%, 1000=0.03% cpu : usr=0.07%, sys=5.96%, ctx=6554, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=222KiB/s (227kB/s), 54.9KiB/s-56.1KiB/s (56.3kB/s-57.5kB/s), io=23.4MiB (24.6MB), run=107029-108406msec WRITE: bw=232KiB/s (237kB/s), 57.5KiB/s-58.8KiB/s (58.9kB/s-60.2kB/s), io=24.6MiB (25.7MB), run=107029-108406msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145640: Fri Sep 4 05:53:09 2026 read: IOPS=6, BW=25.0KiB/s (25.6kB/s)(5992KiB/239583msec) clat (msec): min=5, max=798, avg=30.94, stdev=38.84 lat (msec): min=5, max=798, avg=30.94, stdev=38.84 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 40], 90.00th=[ 66], 95.00th=[ 92], | 99.00th=[ 150], 99.50th=[ 220], 99.90th=[ 514], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 103, per=27.15%, avg=26.88, stdev=17.85, samples=433 iops : min= 1, max= 25, avg= 6.13, stdev= 4.47, samples=433 write: IOPS=6, BW=26.3KiB/s (26.9kB/s)(6296KiB/239583msec); 0 zone resets clat (msec): min=35, max=669, avg=122.69, stdev=55.27 lat (msec): min=35, max=669, avg=122.69, stdev=55.27 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 101], 50.00th=[ 111], 60.00th=[ 124], | 70.00th=[ 138], 80.00th=[ 159], 90.00th=[ 194], 95.00th=[ 232], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 460], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 7, max= 56, per=24.90%, avg=25.90, stdev=10.72, samples=471 iops : min= 1, max= 14, avg= 5.88, stdev= 2.73, samples=471 lat (msec) : 10=4.52%, 20=20.96%, 50=17.06%, 100=24.84%, 250=30.57% lat (msec) : 500=1.95%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.16%, ctx=5092, 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=145641: Fri Sep 4 05:53:09 2026 read: IOPS=6, BW=24.6KiB/s (25.2kB/s)(5940KiB/240978msec) clat (msec): min=5, max=705, avg=30.83, stdev=36.36 lat (msec): min=5, max=705, avg=30.83, stdev=36.36 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 40], 90.00th=[ 67], 95.00th=[ 90], | 99.00th=[ 163], 99.50th=[ 220], 99.90th=[ 351], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 96, per=26.75%, avg=26.49, stdev=18.53, samples=435 iops : min= 1, max= 24, avg= 6.03, stdev= 4.68, samples=435 write: IOPS=6, BW=26.3KiB/s (26.0kB/s)(6348KiB/240978msec); 0 zone resets clat (msec): min=30, max=585, avg=122.93, stdev=52.47 lat (msec): min=30, max=585, avg=122.94, stdev=52.47 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 113], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 161], 90.00th=[ 190], 95.00th=[ 218], | 99.00th=[ 292], 99.50th=[ 338], 99.90th=[ 418], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 7, max= 56, per=24.91%, avg=25.91, stdev=10.51, samples=475 iops : min= 1, max= 14, avg= 5.88, stdev= 2.69, samples=475 lat (msec) : 10=5.24%, 20=19.73%, 50=16.80%, 100=25.16%, 250=31.64% lat (msec) : 500=1.37%, 750=0.07% cpu : usr=0.05%, sys=1.18%, ctx=5183, 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=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=145642: Fri Sep 4 05:53:09 2026 read: IOPS=6, BW=25.2KiB/s (25.8kB/s)(6028KiB/239590msec) clat (msec): min=5, max=343, avg=30.15, stdev=31.04 lat (msec): min=5, max=343, avg=30.15, stdev=31.04 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 41], 90.00th=[ 66], 95.00th=[ 88], | 99.00th=[ 144], 99.50th=[ 218], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 104, per=26.79%, avg=26.53, stdev=17.77, samples=441 iops : min= 1, max= 26, avg= 6.03, stdev= 4.46, samples=441 write: IOPS=6, BW=26.1KiB/s (26.8kB/s)(6260KiB/239590msec); 0 zone resets clat (msec): min=31, max=764, avg=123.98, stdev=59.24 lat (msec): min=31, max=764, avg=123.99, stdev=59.24 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 89], 40.00th=[ 101], 50.00th=[ 112], 60.00th=[ 124], | 70.00th=[ 140], 80.00th=[ 163], 90.00th=[ 201], 95.00th=[ 232], | 99.00th=[ 313], 99.50th=[ 338], 99.90th=[ 659], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 63, per=24.70%, avg=25.69, stdev=11.24, samples=472 iops : min= 1, max= 15, avg= 5.83, stdev= 2.86, samples=472 lat (msec) : 10=5.53%, 20=19.34%, 50=17.45%, 100=25.55%, 250=30.14% lat (msec) : 500=1.92%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.16%, ctx=5073, 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=145643: Fri Sep 4 05:53:09 2026 read: IOPS=6, BW=25.2KiB/s (25.8kB/s)(6052KiB/239992msec) clat (msec): min=4, max=510, avg=29.49, stdev=30.42 lat (msec): min=4, max=510, avg=29.50, stdev=30.42 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 40], 90.00th=[ 65], 95.00th=[ 86], | 99.00th=[ 134], 99.50th=[ 153], 99.90th=[ 342], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 7, max= 103, per=27.95%, avg=27.67, stdev=18.33, samples=425 iops : min= 1, max= 25, avg= 6.33, stdev= 4.64, samples=425 write: IOPS=6, BW=25.0KiB/s (26.6kB/s)(6236KiB/239992msec); 0 zone resets clat (msec): min=33, max=816, avg=125.25, stdev=56.62 lat (msec): min=33, max=816, avg=125.25, stdev=56.62 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 114], 60.00th=[ 127], | 70.00th=[ 142], 80.00th=[ 163], 90.00th=[ 194], 95.00th=[ 224], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 464], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 56, per=24.63%, avg=25.61, stdev=10.48, samples=472 iops : min= 1, max= 14, avg= 5.81, stdev= 2.68, samples=472 lat (msec) : 10=5.60%, 20=20.08%, 50=16.86%, 100=23.86%, 250=32.00% lat (msec) : 500=1.53%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.16%, ctx=5111, 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=99.6KiB/s (102kB/s), 24.6KiB/s-25.2KiB/s (25.2kB/s-25.8kB/s), io=23.4MiB (24.6MB), run=239583-240978msec WRITE: bw=104KiB/s (107kB/s), 25.0KiB/s-26.3KiB/s (26.6kB/s-26.0kB/s), io=24.6MiB (25.7MB), run=239583-240978msec 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=145691: Fri Sep 4 05:53:44 2026 read: IOPS=15, BW=241KiB/s (246kB/s)(5920KiB/24607msec) clat (usec): min=39, max=303577, avg=33974.23, stdev=31716.24 lat (usec): min=39, max=303577, avg=33975.40, stdev=31716.25 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 91], | 30.00th=[ 19530], 40.00th=[ 26870], 50.00th=[ 31589], 60.00th=[ 35914], | 70.00th=[ 42730], 80.00th=[ 52691], 90.00th=[ 67634], 95.00th=[ 77071], | 99.00th=[112722], 99.50th=[299893], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 62, max= 535, per=25.39%, avg=240.17, stdev=93.64, samples=48 iops : min= 3, max= 33, avg=14.27, stdev= 5.92, samples=48 write: IOPS=16, BW=259KiB/s (265kB/s)(6368KiB/24607msec); 0 zone resets clat (usec): min=1312, max=174229, avg=29825.19, stdev=31992.87 lat (usec): min=1313, max=174230, avg=29833.66, stdev=31997.92 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1909], 10.00th=[ 2638], 20.00th=[ 4883], | 30.00th=[ 7701], 40.00th=[ 10159], 50.00th=[ 16909], 60.00th=[ 25560], | 70.00th=[ 38011], 80.00th=[ 51643], 90.00th=[ 74974], 95.00th=[ 95945], | 99.00th=[152044], 99.50th=[162530], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 62, max= 541, per=26.09%, avg=259.81, stdev=107.30, samples=48 iops : min= 3, max= 33, avg=15.48, stdev= 6.75, samples=48 lat (usec) : 50=1.69%, 100=8.20%, 250=0.78%, 500=0.13%, 750=0.13% lat (msec) : 2=2.99%, 4=5.47%, 10=12.24%, 20=10.42%, 50=36.20% lat (msec) : 100=18.75%, 250=2.73%, 500=0.26% cpu : usr=0.10%, sys=6.25%, ctx=1404, 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=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=145692: Fri Sep 4 05:53:44 2026 read: IOPS=14, BW=227KiB/s (232kB/s)(5744KiB/25299msec) clat (usec): min=37, max=498754, avg=37336.86, stdev=36692.92 lat (usec): min=37, max=498755, avg=37337.95, stdev=36692.88 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 68], 20.00th=[ 14353], | 30.00th=[ 23462], 40.00th=[ 27395], 50.00th=[ 33817], 60.00th=[ 41157], | 70.00th=[ 46400], 80.00th=[ 53740], 90.00th=[ 67634], 95.00th=[ 84411], | 99.00th=[130548], 99.50th=[189793], 99.90th=[497026], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 63, max= 476, per=23.99%, avg=226.98, stdev=81.19, samples=49 iops : min= 3, max= 29, avg=13.45, stdev= 5.09, samples=49 write: IOPS=16, BW=259KiB/s (265kB/s)(6544KiB/25299msec); 0 zone resets clat (usec): min=1320, max=230598, avg=28684.47, stdev=31964.27 lat (usec): min=1322, max=230600, avg=28689.69, stdev=31961.58 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1762], 10.00th=[ 2442], 20.00th=[ 4752], | 30.00th=[ 7373], 40.00th=[ 10552], 50.00th=[ 16450], 60.00th=[ 25560], | 70.00th=[ 33424], 80.00th=[ 49021], 90.00th=[ 70779], 95.00th=[ 94897], | 99.00th=[131597], 99.50th=[156238], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 62, max= 538, per=25.95%, avg=258.45, stdev=113.31, samples=49 iops : min= 3, max= 33, avg=15.41, stdev= 7.14, samples=49 lat (usec) : 50=0.91%, 100=6.25%, 250=0.78%, 500=0.13% lat (msec) : 2=3.52%, 4=5.99%, 10=11.59%, 20=11.46%, 50=38.15% lat (msec) : 100=17.58%, 250=3.52%, 500=0.13% cpu : usr=0.09%, sys=6.79%, ctx=1527, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145693: Fri Sep 4 05:53:44 2026 read: IOPS=15, BW=248KiB/s (254kB/s)(6256KiB/25247msec) clat (usec): min=33, max=171229, avg=35531.00, stdev=29324.81 lat (usec): min=33, max=171229, avg=35532.10, stdev=29324.84 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 122], | 30.00th=[ 21627], 40.00th=[ 26870], 50.00th=[ 32375], 60.00th=[ 38536], | 70.00th=[ 45351], 80.00th=[ 55837], 90.00th=[ 69731], 95.00th=[ 88605], | 99.00th=[139461], 99.50th=[141558], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 94, max= 506, per=25.98%, avg=245.82, stdev=93.63, samples=49 iops : min= 5, max= 31, avg=14.61, stdev= 5.96, samples=49 write: IOPS=14, BW=239KiB/s (245kB/s)(6032KiB/25247msec); 0 zone resets clat (usec): min=1424, max=174056, avg=29609.86, stdev=31252.86 lat (usec): min=1426, max=174059, avg=29639.13, stdev=31267.36 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 2212], 10.00th=[ 3032], 20.00th=[ 4359], | 30.00th=[ 6259], 40.00th=[ 10421], 50.00th=[ 18220], 60.00th=[ 28705], | 70.00th=[ 38011], 80.00th=[ 52691], 90.00th=[ 74974], 95.00th=[ 89654], | 99.00th=[133694], 99.50th=[170918], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 63, max= 510, per=23.49%, avg=233.96, stdev=88.57, samples=49 iops : min= 3, max= 31, avg=13.88, stdev= 5.54, samples=49 lat (usec) : 50=1.69%, 100=8.20%, 250=0.52%, 500=0.13% lat (msec) : 2=2.08%, 4=6.77%, 10=10.68%, 20=9.90%, 50=36.46% lat (msec) : 100=20.05%, 250=3.52% cpu : usr=0.09%, sys=6.26%, ctx=1529, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145694: Fri Sep 4 05:53:44 2026 read: IOPS=15, BW=252KiB/s (258kB/s)(6032KiB/23972msec) clat (usec): min=38, max=155427, avg=35278.48, stdev=29159.45 lat (usec): min=38, max=155428, avg=35279.61, stdev=29159.47 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 101], | 30.00th=[ 21103], 40.00th=[ 27919], 50.00th=[ 32637], 60.00th=[ 39584], | 70.00th=[ 45876], 80.00th=[ 55837], 90.00th=[ 68682], 95.00th=[ 91751], | 99.00th=[135267], 99.50th=[145753], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 64, max= 541, per=26.44%, avg=250.15, stdev=91.00, samples=47 iops : min= 4, max= 33, avg=14.91, stdev= 5.74, samples=47 write: IOPS=16, BW=261KiB/s (267kB/s)(6256KiB/23972msec); 0 zone resets clat (usec): min=1343, max=207209, avg=26998.92, stdev=29932.44 lat (usec): min=1345, max=207211, avg=27061.99, stdev=29970.62 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1844], 10.00th=[ 2704], 20.00th=[ 4359], | 30.00th=[ 6325], 40.00th=[ 8455], 50.00th=[ 15270], 60.00th=[ 25297], | 70.00th=[ 36439], 80.00th=[ 46400], 90.00th=[ 66323], 95.00th=[ 81265], | 99.00th=[139461], 99.50th=[168821], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 63, max= 510, per=26.25%, avg=261.47, stdev=109.81, samples=47 iops : min= 3, max= 31, avg=15.60, stdev= 6.91, samples=47 lat (usec) : 50=1.17%, 100=8.59%, 250=0.78%, 500=0.39%, 750=0.13% lat (msec) : 2=3.52%, 4=6.25%, 10=13.15%, 20=9.11%, 50=35.42% lat (msec) : 100=17.97%, 250=3.52% cpu : usr=0.13%, sys=6.56%, ctx=1428, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=947KiB/s (969kB/s), 227KiB/s-252KiB/s (232kB/s-258kB/s), io=23.4MiB (24.5MB), run=23972-25299msec WRITE: bw=996KiB/s (1020kB/s), 239KiB/s-261KiB/s (245kB/s-267kB/s), io=24.6MiB (25.8MB), run=23972-25299msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145696: Fri Sep 4 05:54:26 2026 read: IOPS=5, BW=88.6KiB/s (90.7kB/s)(5920KiB/66824msec) clat (msec): min=5, max=423, avg=36.18, stdev=41.73 lat (msec): min=5, max=423, avg=36.19, stdev=41.73 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 35], 80.00th=[ 46], 90.00th=[ 70], 95.00th=[ 117], | 99.00th=[ 218], 99.50th=[ 236], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 31, max= 384, per=26.66%, avg=95.44, stdev=63.96, samples=122 iops : min= 1, max= 24, avg= 5.25, stdev= 4.10, samples=122 write: IOPS=5, BW=95.3KiB/s (97.6kB/s)(6368KiB/66824msec); 0 zone resets clat (msec): min=37, max=419, avg=134.12, stdev=56.86 lat (msec): min=37, max=419, avg=134.12, stdev=56.86 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 69], 10.00th=[ 75], 20.00th=[ 87], | 30.00th=[ 101], 40.00th=[ 111], 50.00th=[ 121], 60.00th=[ 138], | 70.00th=[ 150], 80.00th=[ 174], 90.00th=[ 211], 95.00th=[ 243], | 99.00th=[ 326], 99.50th=[ 355], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 22, max= 192, per=25.82%, avg=97.34, stdev=37.89, samples=129 iops : min= 1, max= 12, avg= 5.36, stdev= 2.43, samples=129 lat (msec) : 10=2.34%, 20=17.84%, 50=20.70%, 100=20.57%, 250=36.07% lat (msec) : 500=2.47% cpu : usr=0.04%, sys=1.17%, ctx=1261, 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=145697: Fri Sep 4 05:54:26 2026 read: IOPS=5, BW=85.0KiB/s (88.1kB/s)(5744KiB/66801msec) clat (msec): min=6, max=204, avg=33.35, stdev=28.08 lat (msec): min=6, max=204, avg=33.35, stdev=28.08 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 70], 95.00th=[ 96], | 99.00th=[ 138], 99.50th=[ 171], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 21, max= 382, per=27.35%, avg=97.90, stdev=62.69, samples=116 iops : min= 1, max= 23, avg= 5.40, stdev= 3.97, samples=116 write: IOPS=6, BW=97.0KiB/s (100kB/s)(6544KiB/66801msec); 0 zone resets clat (msec): min=47, max=666, avg=133.86, stdev=58.79 lat (msec): min=47, max=666, avg=133.87, stdev=58.79 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 68], 10.00th=[ 74], 20.00th=[ 87], | 30.00th=[ 97], 40.00th=[ 109], 50.00th=[ 124], 60.00th=[ 134], | 70.00th=[ 157], 80.00th=[ 180], 90.00th=[ 207], 95.00th=[ 236], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 30, max= 160, per=25.89%, avg=97.61, stdev=37.08, samples=132 iops : min= 1, max= 10, avg= 5.38, stdev= 2.40, samples=132 lat (msec) : 10=2.34%, 20=15.63%, 50=20.96%, 100=22.40%, 250=36.72% lat (msec) : 500=1.82%, 750=0.13% cpu : usr=0.04%, sys=1.24%, ctx=1355, 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=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=145698: Fri Sep 4 05:54:26 2026 read: IOPS=5, BW=95.9KiB/s (98.2kB/s)(6256KiB/65263msec) clat (msec): min=6, max=242, avg=33.44, stdev=33.50 lat (msec): min=6, max=242, avg=33.45, stdev=33.50 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 32], 80.00th=[ 42], 90.00th=[ 63], 95.00th=[ 101], | 99.00th=[ 209], 99.50th=[ 218], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 30, max= 352, per=28.82%, avg=103.19, stdev=72.70, samples=120 iops : min= 1, max= 22, avg= 5.73, stdev= 4.60, samples=120 write: IOPS=5, BW=92.4KiB/s (94.6kB/s)(6032KiB/65263msec); 0 zone resets clat (msec): min=37, max=547, avg=138.22, stdev=62.71 lat (msec): min=37, max=547, avg=138.23, stdev=62.71 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 69], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 102], 40.00th=[ 112], 50.00th=[ 122], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 176], 90.00th=[ 222], 95.00th=[ 262], | 99.00th=[ 338], 99.50th=[ 397], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 30, max= 190, per=24.62%, avg=92.81, stdev=36.47, samples=128 iops : min= 1, max= 11, avg= 5.08, stdev= 2.37, samples=128 lat (msec) : 10=2.60%, 20=18.23%, 50=22.92%, 100=18.23%, 250=35.16% lat (msec) : 500=2.73%, 750=0.13% cpu : usr=0.03%, sys=1.21%, ctx=1377, 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=145699: Fri Sep 4 05:54:26 2026 read: IOPS=5, BW=91.8KiB/s (94.0kB/s)(6032KiB/65709msec) clat (msec): min=6, max=256, avg=33.79, stdev=32.54 lat (msec): min=6, max=256, avg=33.79, stdev=32.54 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 43], 90.00th=[ 67], 95.00th=[ 95], | 99.00th=[ 199], 99.50th=[ 236], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 317, per=28.74%, avg=102.88, stdev=64.61, samples=114 iops : min= 1, max= 19, avg= 5.71, stdev= 4.07, samples=114 write: IOPS=5, BW=95.2KiB/s (97.5kB/s)(6256KiB/65709msec); 0 zone resets clat (msec): min=50, max=383, avg=135.32, stdev=55.81 lat (msec): min=50, max=383, avg=135.33, stdev=55.82 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 70], 10.00th=[ 78], 20.00th=[ 90], | 30.00th=[ 101], 40.00th=[ 112], 50.00th=[ 122], 60.00th=[ 134], | 70.00th=[ 153], 80.00th=[ 178], 90.00th=[ 211], 95.00th=[ 245], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 30, max= 192, per=25.07%, avg=94.50, stdev=37.72, samples=129 iops : min= 1, max= 12, avg= 5.19, stdev= 2.47, samples=129 lat (msec) : 10=2.86%, 20=14.97%, 50=23.83%, 100=20.05%, 250=36.07% lat (msec) : 500=2.21% cpu : usr=0.04%, sys=1.19%, ctx=1322, 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=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=358KiB/s (367kB/s), 85.0KiB/s-95.9KiB/s (88.1kB/s-98.2kB/s), io=23.4MiB (24.5MB), run=65263-66824msec WRITE: bw=377KiB/s (386kB/s), 92.4KiB/s-97.0KiB/s (94.6kB/s-100kB/s), io=24.6MiB (25.8MB), run=65263-66824msec 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=145722: Fri Sep 4 05:54:42 2026 read: IOPS=1, BW=1943KiB/s (1989kB/s)(7168KiB/3690msec) clat (usec): min=713, max=282893, avg=186585.68, stdev=90627.54 lat (usec): min=715, max=282893, avg=186587.02, stdev=90627.55 clat percentiles (usec): | 1.00th=[ 717], 5.00th=[ 717], 10.00th=[ 717], 20.00th=[164627], | 30.00th=[196084], 40.00th=[196084], 50.00th=[200279], 60.00th=[212861], | 70.00th=[212861], 80.00th=[250610], 90.00th=[283116], 95.00th=[283116], | 99.00th=[283116], 99.50th=[283116], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 1878, max= 3976, per=56.61%, avg=2729.25, stdev=972.02, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1388KiB/s (1421kB/s)(5120KiB/3690msec); 0 zone resets clat (msec): min=208, max=814, avg=454.31, stdev=246.70 lat (msec): min=208, max=814, avg=454.92, stdev=246.64 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 209], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1878, max= 4031, per=39.27%, avg=2650.67, stdev=1198.25, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=12.93%, ctx=242, 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=145723: Fri Sep 4 05:54:42 2026 read: IOPS=0, BW=502KiB/s (514kB/s)(2048KiB/4081msec) clat (msec): min=197, max=363, avg=280.42, stdev=117.95 lat (msec): min=197, max=363, avg=280.42, stdev=117.95 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 1630, max= 2043, per=38.09%, avg=1836.50, stdev=292.04, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2509KiB/s (2569kB/s)(10.0MiB/4081msec); 0 zone resets clat (msec): min=124, max=868, avg=331.73, stdev=226.64 lat (msec): min=124, max=871, avg=332.25, stdev=227.25 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 188], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 253], 60.00th=[ 271], | 70.00th=[ 288], 80.00th=[ 313], 90.00th=[ 592], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1878, max= 6011, per=47.19%, avg=3184.60, stdev=1802.31, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=13.73%, ctx=178, 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=145724: Fri Sep 4 05:54:42 2026 read: IOPS=1, BW=2037KiB/s (2086kB/s)(6144KiB/3016msec) clat (usec): min=356, max=243587, avg=82127.41, stdev=105785.09 lat (usec): min=357, max=243589, avg=82128.39, stdev=105785.12 clat percentiles (usec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[ 971], 50.00th=[ 971], 60.00th=[ 66323], | 70.00th=[181404], 80.00th=[181404], 90.00th=[244319], 95.00th=[244319], | 99.00th=[244319], 99.50th=[244319], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 3976, max= 6083, per=100.00%, avg=5029.50, stdev=1489.87, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=2037KiB/s (2086kB/s)(6144KiB/3016msec); 0 zone resets clat (msec): min=196, max=640, avg=375.47, stdev=187.00 lat (msec): min=197, max=641, avg=375.86, stdev=187.22 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 422], | 70.00th=[ 535], 80.00th=[ 535], 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= 1729, max= 4055, per=35.75%, avg=2412.50, stdev=1100.13, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=8.33%, 1000=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=16.67%, 750=16.67% cpu : usr=0.00%, sys=13.90%, ctx=163, 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=145725: Fri Sep 4 05:54:42 2026 read: IOPS=1, BW=1205KiB/s (1234kB/s)(5120KiB/4248msec) clat (usec): min=736, max=474917, avg=161689.55, stdev=194322.74 lat (usec): min=736, max=474918, avg=161690.42, stdev=194322.88 clat percentiles (usec): | 1.00th=[ 734], 5.00th=[ 734], 10.00th=[ 734], 20.00th=[ 734], | 30.00th=[ 1303], 40.00th=[ 1303], 50.00th=[141558], 60.00th=[141558], | 70.00th=[191890], 80.00th=[191890], 90.00th=[476054], 95.00th=[476054], | 99.00th=[476054], 99.50th=[476054], 99.90th=[476054], 99.95th=[476054], | 99.99th=[476054] bw ( KiB/s): min= 2043, max= 6011, per=83.53%, avg=4027.00, stdev=2805.80, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1687KiB/s (1728kB/s)(7168KiB/4248msec); 0 zone resets clat (msec): min=171, max=945, avg=458.89, stdev=302.18 lat (msec): min=171, max=945, avg=459.01, stdev=302.21 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 215], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 380], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 785], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1988, max= 3757, per=36.16%, avg=2440.75, stdev=877.57, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=41.67%, 500=25.00%, 1000=16.67% cpu : usr=0.00%, sys=9.65%, ctx=177, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4821KiB/s (4937kB/s), 502KiB/s-2037KiB/s (514kB/s-2086kB/s), io=20.0MiB (20.0MB), run=3016-4248msec WRITE: bw=6750KiB/s (6912kB/s), 1388KiB/s-2509KiB/s (1421kB/s-2569kB/s), io=28.0MiB (29.4MB), run=3016-4248msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145717: Fri Sep 4 05:54:42 2026 read: IOPS=1, BW=1975KiB/s (2023kB/s)(7168KiB/3629msec) clat (msec): min=113, max=429, avg=240.40, stdev=123.18 lat (msec): min=113, max=429, avg=240.40, stdev=123.18 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 127], | 30.00th=[ 131], 40.00th=[ 131], 50.00th=[ 236], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 326], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 1996, max= 4388, per=64.53%, avg=2617.50, stdev=1180.54, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1411KiB/s (1445kB/s)(5120KiB/3629msec); 0 zone resets clat (msec): min=277, max=587, avg=379.80, stdev=135.59 lat (msec): min=277, max=588, avg=380.04, stdev=135.45 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1996, max= 4096, per=44.81%, avg=2544.50, stdev=1034.57, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 250=33.33%, 500=58.33%, 750=8.33% cpu : usr=0.08%, sys=4.47%, ctx=68, 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=145718: Fri Sep 4 05:54:42 2026 read: IOPS=0, BW=432KiB/s (443kB/s)(2048KiB/4737msec) clat (msec): min=108, max=750, avg=429.34, stdev=454.24 lat (msec): min=108, max=750, avg=429.34, stdev=454.24 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 109], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 109], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1490, max= 1969, per=42.64%, avg=1729.50, stdev=338.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2162KiB/s (2214kB/s)(10.0MiB/4737msec); 0 zone resets clat (msec): min=95, max=678, avg=369.61, stdev=214.07 lat (msec): min=95, max=678, avg=369.69, stdev=214.07 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 123], | 30.00th=[ 205], 40.00th=[ 271], 50.00th=[ 279], 60.00th=[ 384], | 70.00th=[ 409], 80.00th=[ 575], 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= 1943, max= 4087, per=53.12%, avg=3016.25, stdev=1182.89, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.04%, sys=3.70%, ctx=73, 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=145719: Fri Sep 4 05:54:42 2026 read: IOPS=1, BW=1444KiB/s (1479kB/s)(6144KiB/4255msec) clat (msec): min=101, max=767, avg=342.00, stdev=291.28 lat (msec): min=101, max=767, avg=342.00, stdev=291.28 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 106], | 30.00th=[ 106], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 247], | 70.00th=[ 651], 80.00th=[ 651], 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= 1969, max= 2043, per=49.62%, avg=2012.75, stdev=36.63, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1444KiB/s (1479kB/s)(6144KiB/4255msec); 0 zone resets clat (msec): min=194, max=525, avg=316.04, stdev=122.57 lat (msec): min=194, max=525, avg=316.14, stdev=122.56 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 288], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1479, max= 2043, per=33.57%, avg=1906.00, stdev=240.80, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=3.62%, ctx=76, 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=145720: Fri Sep 4 05:54:42 2026 read: IOPS=0, BW=1014KiB/s (1038kB/s)(5120KiB/5049msec) clat (msec): min=144, max=888, avg=388.26, stdev=307.87 lat (msec): min=144, max=888, avg=388.27, stdev=307.87 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 182], 40.00th=[ 182], 50.00th=[ 249], 60.00th=[ 249], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1969, max= 3886, per=64.91%, avg=2632.67, stdev=1086.05, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1420KiB/s (1454kB/s)(7168KiB/5049msec); 0 zone resets clat (msec): min=193, max=800, avg=409.61, stdev=227.43 lat (msec): min=193, max=800, avg=409.70, stdev=227.42 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 203], | 30.00th=[ 218], 40.00th=[ 218], 50.00th=[ 414], 60.00th=[ 460], | 70.00th=[ 460], 80.00th=[ 584], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1456, max= 4087, per=40.95%, avg=2325.00, stdev=1015.76, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=3.39%, ctx=84, 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=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=4056KiB/s (4154kB/s), 432KiB/s-1975KiB/s (443kB/s-2023kB/s), io=20.0MiB (20.0MB), run=3629-5049msec WRITE: bw=5679KiB/s (5815kB/s), 1411KiB/s-2162KiB/s (1445kB/s-2214kB/s), io=28.0MiB (29.4MB), run=3629-5049msec 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=145737: Fri Sep 4 05:54:58 2026 read: IOPS=0, BW=3775KiB/s (3866kB/s)(12.0MiB/3255msec) clat (msec): min=559, max=1830, avg=1021.35, stdev=703.08 lat (msec): min=559, max=1830, avg=1021.35, stdev=703.09 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 8094, max= 8143, per=100.00%, avg=8118.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.87%, ctx=64, 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=145738: Fri Sep 4 05:54:58 2026 read: IOPS=0, BW=1241KiB/s (1271kB/s)(4096KiB/3300msec) clat (nsec): min=1703.4M, max=1703.4M, avg=1703431262.00, stdev= 0.00 lat (nsec): min=1703.4M, max=1703.4M, avg=1703433599.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1703], 5.00th=[ 1703], 10.00th=[ 1703], 20.00th=[ 1703], | 30.00th=[ 1703], 40.00th=[ 1703], 50.00th=[ 1703], 60.00th=[ 1703], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2482KiB/s (2542kB/s)(8192KiB/3300msec); 0 zone resets clat (msec): min=559, max=921, avg=740.96, stdev=256.02 lat (msec): min=560, max=922, avg=741.38, stdev=256.01 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 919], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8143, max= 8143, per=82.01%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.09%, ctx=60, 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=145739: Fri Sep 4 05:54:58 2026 write: IOPS=0, BW=4070KiB/s (4168kB/s)(12.0MiB/3019msec); 0 zone resets clat (msec): min=669, max=1585, avg=982.46, stdev=522.37 lat (msec): min=669, max=1585, avg=983.56, stdev=521.76 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8094, max= 8175, per=81.93%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.25%, ctx=41, 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=145740: Fri Sep 4 05:54:58 2026 write: IOPS=1, BW=4607KiB/s (4718kB/s)(12.0MiB/2667msec); 0 zone resets clat (msec): min=279, max=1785, avg=873.98, stdev=801.35 lat (msec): min=280, max=1785, avg=874.53, stdev=801.10 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 5970, max= 8143, per=71.07%, avg=7056.50, stdev=1536.54, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.43%, ctx=36, 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=4965KiB/s (5084kB/s), 1241KiB/s-3775KiB/s (1271kB/s-3866kB/s), io=16.0MiB (16.8MB), run=3255-3300msec WRITE: bw=9930KiB/s (10.2MB/s), 2482KiB/s-4607KiB/s (2542kB/s-4718kB/s), io=32.0MiB (33.6MB), run=2667-3300msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145733: Fri Sep 4 05:54:58 2026 read: IOPS=1, BW=4644KiB/s (4755kB/s)(12.0MiB/2646msec) clat (msec): min=786, max=913, avg=845.39, stdev=64.10 lat (msec): min=786, max=913, avg=845.39, stdev=64.10 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 911], 80.00th=[ 911], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 8047, max= 8159, per=100.00%, avg=8103.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=10.55%, ctx=304, 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=145734: Fri Sep 4 05:54:58 2026 read: IOPS=0, BW=1804KiB/s (1847kB/s)(4096KiB/2271msec) clat (nsec): min=914419k, max=914419k, avg=914418787.00, stdev= 0.00 lat (nsec): min=915071k, max=915071k, avg=915070823.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3607KiB/s (3694kB/s)(8192KiB/2271msec); 0 zone resets clat (msec): min=291, max=932, avg=611.76, stdev=453.30 lat (msec): min=291, max=933, avg=612.58, stdev=453.85 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 936], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 8110, max= 8110, per=96.18%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=9.12%, ctx=144, 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=145735: Fri Sep 4 05:54:58 2026 write: IOPS=0, BW=3162KiB/s (3238kB/s)(12.0MiB/3886msec); 0 zone resets clat (msec): min=627, max=2444, avg=1265.33, stdev=1022.19 lat (msec): min=628, max=2445, avg=1265.98, stdev=1022.27 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 2433], 80.00th=[ 2433], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 8143, max= 8159, per=96.67%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.68%, ctx=65, 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=145736: Fri Sep 4 05:54:58 2026 write: IOPS=1, BW=5276KiB/s (5403kB/s)(12.0MiB/2329msec); 0 zone resets clat (msec): min=355, max=1350, avg=737.66, stdev=535.94 lat (msec): min=357, max=1351, avg=738.87, stdev=535.67 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min=16286, max=16286, per=100.00%, avg=16286.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.94%, ctx=44, 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=6192KiB/s (6341kB/s), 1804KiB/s-4644KiB/s (1847kB/s-4755kB/s), io=16.0MiB (16.8MB), run=2271-2646msec WRITE: bw=8432KiB/s (8635kB/s), 3162KiB/s-5276KiB/s (3238kB/s-5403kB/s), io=32.0MiB (33.6MB), run=2271-3886msec