== sanity test 398b: DIO and buffer IO race ============== 06:51:56 (1788000716) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.99769 s, 12.6 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=145087: Sat Aug 29 06:53:37 2026 read: IOPS=17, BW=68.5KiB/s (70.2kB/s)(5992KiB/87421msec) clat (usec): min=43, max=698601, avg=28008.78, stdev=26297.42 lat (usec): min=44, max=698603, avg=28011.27, stdev=26297.20 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 95], 10.00th=[ 8455], 20.00th=[ 14222], | 30.00th=[ 17171], 40.00th=[ 20055], 50.00th=[ 22938], 60.00th=[ 27395], | 70.00th=[ 33817], 80.00th=[ 41681], 90.00th=[ 51643], 95.00th=[ 62653], | 99.00th=[ 86508], 99.50th=[122160], 99.90th=[179307], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 7, max= 174, per=25.05%, avg=68.13, stdev=27.19, samples=173 iops : min= 1, max= 43, avg=16.44, stdev= 6.84, samples=173 write: IOPS=18, BW=72.0KiB/s (73.7kB/s)(6296KiB/87421msec); 0 zone resets clat (usec): min=991, max=357567, avg=28644.81, stdev=30164.09 lat (usec): min=991, max=357569, avg=28649.26, stdev=30163.62 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1745], 10.00th=[ 2507], 20.00th=[ 4228], | 30.00th=[ 6915], 40.00th=[ 13829], 50.00th=[ 21365], 60.00th=[ 28181], | 70.00th=[ 36439], 80.00th=[ 47449], 90.00th=[ 64226], 95.00th=[ 82314], | 99.00th=[123208], 99.50th=[160433], 99.90th=[291505], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 7, max= 167, per=25.22%, avg=71.89, stdev=25.70, samples=172 iops : min= 1, max= 41, avg=17.39, stdev= 6.45, samples=172 lat (usec) : 50=0.23%, 100=2.47%, 250=1.60%, 500=0.16%, 750=0.10% lat (usec) : 1000=0.10% lat (msec) : 2=3.32%, 4=6.64%, 10=8.95%, 20=20.41%, 50=41.41% lat (msec) : 100=12.86%, 250=1.63%, 500=0.10%, 750=0.03% cpu : usr=0.12%, sys=9.52%, ctx=7399, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145090: Sat Aug 29 06:53:37 2026 read: IOPS=16, BW=67.5KiB/s (69.2kB/s)(5940KiB/87948msec) clat (usec): min=36, max=706482, avg=28785.66, stdev=27883.58 lat (usec): min=37, max=706483, avg=28797.06, stdev=27885.14 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 84], 10.00th=[ 9503], 20.00th=[ 14353], | 30.00th=[ 17433], 40.00th=[ 20317], 50.00th=[ 23987], 60.00th=[ 28443], | 70.00th=[ 33817], 80.00th=[ 40633], 90.00th=[ 52691], 95.00th=[ 63177], | 99.00th=[ 93848], 99.50th=[139461], 99.90th=[299893], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 7, max= 160, per=24.77%, avg=67.39, stdev=25.65, samples=173 iops : min= 1, max= 40, avg=16.26, stdev= 6.46, samples=173 write: IOPS=18, BW=72.2KiB/s (73.9kB/s)(6348KiB/87948msec); 0 zone resets clat (usec): min=1071, max=260446, avg=28237.60, stdev=28798.35 lat (usec): min=1072, max=260448, avg=28239.80, stdev=28798.16 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1762], 10.00th=[ 2376], 20.00th=[ 3884], | 30.00th=[ 6587], 40.00th=[ 13960], 50.00th=[ 21365], 60.00th=[ 28967], | 70.00th=[ 36439], 80.00th=[ 47449], 90.00th=[ 63177], 95.00th=[ 80217], | 99.00th=[123208], 99.50th=[160433], 99.90th=[242222], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 8, max= 151, per=25.24%, avg=71.94, stdev=26.81, samples=173 iops : min= 2, max= 37, avg=17.40, stdev= 6.71, samples=173 lat (usec) : 50=0.10%, 100=2.90%, 250=1.04%, 500=0.23%, 750=0.10% lat (msec) : 2=3.45%, 4=7.16%, 10=8.11%, 20=20.54%, 50=41.47% lat (msec) : 100=13.28%, 250=1.53%, 500=0.07%, 750=0.03% cpu : usr=0.12%, sys=9.41%, ctx=7310, 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=145092: Sat Aug 29 06:53:37 2026 read: IOPS=17, BW=68.8KiB/s (70.5kB/s)(6028KiB/87567msec) clat (usec): min=34, max=708431, avg=27472.47, stdev=26372.34 lat (usec): min=34, max=708432, avg=27482.78, stdev=26380.30 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 72], 10.00th=[ 249], 20.00th=[ 13435], | 30.00th=[ 16450], 40.00th=[ 19268], 50.00th=[ 22676], 60.00th=[ 27919], | 70.00th=[ 33424], 80.00th=[ 40633], 90.00th=[ 51119], 95.00th=[ 61604], | 99.00th=[ 94897], 99.50th=[126354], 99.90th=[173016], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 7, max= 151, per=25.34%, avg=68.92, stdev=26.79, samples=172 iops : min= 1, max= 37, avg=16.63, stdev= 6.71, samples=172 write: IOPS=17, BW=71.5KiB/s (73.2kB/s)(6260KiB/87567msec); 0 zone resets clat (usec): min=822, max=366899, avg=29280.09, stdev=29768.01 lat (usec): min=823, max=366901, avg=29283.43, stdev=29770.42 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1844], 10.00th=[ 2474], 20.00th=[ 3982], | 30.00th=[ 7046], 40.00th=[ 14615], 50.00th=[ 21890], 60.00th=[ 29492], | 70.00th=[ 39584], 80.00th=[ 50594], 90.00th=[ 66847], 95.00th=[ 81265], | 99.00th=[119014], 99.50th=[137364], 99.90th=[304088], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 15, max= 160, per=24.93%, avg=71.05, stdev=26.44, samples=173 iops : min= 3, max= 40, avg=17.18, stdev= 6.66, samples=173 lat (usec) : 50=0.55%, 100=3.26%, 250=1.11%, 500=0.20%, 750=0.10% lat (usec) : 1000=0.07% lat (msec) : 2=3.29%, 4=7.00%, 10=8.63%, 20=20.77%, 50=39.49% lat (msec) : 100=13.93%, 250=1.50%, 500=0.10%, 750=0.03% cpu : usr=0.11%, sys=9.37%, ctx=7338, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145094: Sat Aug 29 06:53:37 2026 read: IOPS=17, BW=68.7KiB/s (70.4kB/s)(6052KiB/88071msec) clat (usec): min=28, max=285499, avg=29054.70, stdev=23724.96 lat (usec): min=28, max=285501, avg=29058.31, stdev=23725.28 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 80], 10.00th=[ 217], 20.00th=[ 13829], | 30.00th=[ 16909], 40.00th=[ 19792], 50.00th=[ 23987], 60.00th=[ 29230], | 70.00th=[ 35390], 80.00th=[ 44303], 90.00th=[ 54789], 95.00th=[ 65799], | 99.00th=[104334], 99.50th=[141558], 99.90th=[270533], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 157, per=25.29%, avg=68.79, stdev=26.62, samples=173 iops : min= 1, max= 39, avg=16.62, stdev= 6.71, samples=173 write: IOPS=17, BW=70.8KiB/s (72.5kB/s)(6236KiB/88071msec); 0 zone resets clat (usec): min=1005, max=700954, avg=28070.05, stdev=31180.29 lat (usec): min=1006, max=700955, avg=28073.72, stdev=31179.95 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1582], 10.00th=[ 2245], 20.00th=[ 3916], | 30.00th=[ 6849], 40.00th=[ 14484], 50.00th=[ 22152], 60.00th=[ 29230], | 70.00th=[ 36963], 80.00th=[ 46400], 90.00th=[ 62129], 95.00th=[ 76022], | 99.00th=[111674], 99.50th=[128451], 99.90th=[233833], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 14, max= 152, per=24.68%, avg=70.34, stdev=26.49, samples=174 iops : min= 3, max= 38, avg=17.00, stdev= 6.68, samples=174 lat (usec) : 50=0.42%, 100=3.09%, 250=1.46%, 500=0.23%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=4.13%, 4=6.38%, 10=8.17%, 20=19.08%, 50=41.50% lat (msec) : 100=13.87%, 250=1.27%, 500=0.10%, 750=0.03% cpu : usr=0.12%, sys=9.40%, ctx=7469, 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=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=273KiB/s (279kB/s), 67.5KiB/s-68.8KiB/s (69.2kB/s-70.5kB/s), io=23.4MiB (24.6MB), run=87421-88071msec WRITE: bw=285KiB/s (292kB/s), 70.8KiB/s-72.2KiB/s (72.5kB/s-73.9kB/s), io=24.6MiB (25.7MB), run=87421-88071msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145088: Sat Aug 29 06:54:55 2026 read: IOPS=9, BW=36.2KiB/s (37.0kB/s)(5992KiB/165738msec) clat (msec): min=4, max=707, avg=23.05, stdev=28.94 lat (msec): min=4, max=708, avg=23.06, stdev=28.94 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 21], 80.00th=[ 34], 90.00th=[ 53], 95.00th=[ 70], | 99.00th=[ 114], 99.50th=[ 136], 99.90th=[ 226], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 128, per=25.50%, avg=36.71, stdev=24.63, samples=319 iops : min= 1, max= 32, avg= 8.61, stdev= 6.22, samples=319 write: IOPS=9, BW=37.0KiB/s (38.9kB/s)(6296KiB/165738msec); 0 zone resets clat (msec): min=28, max=406, avg=83.15, stdev=41.49 lat (msec): min=28, max=406, avg=83.15, stdev=41.49 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 40], 10.00th=[ 44], 20.00th=[ 51], | 30.00th=[ 58], 40.00th=[ 65], 50.00th=[ 72], 60.00th=[ 80], | 70.00th=[ 92], 80.00th=[ 111], 90.00th=[ 140], 95.00th=[ 165], | 99.00th=[ 234], 99.50th=[ 245], 99.90th=[ 351], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 7, max= 87, per=24.97%, avg=37.70, stdev=17.30, samples=326 iops : min= 1, max= 21, avg= 8.86, stdev= 4.43, samples=326 lat (msec) : 10=14.00%, 20=19.69%, 50=19.21%, 100=33.66%, 250=13.18% lat (msec) : 500=0.23%, 750=0.03% cpu : usr=0.07%, sys=2.10%, ctx=5519, 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=145089: Sat Aug 29 06:54:55 2026 read: IOPS=8, BW=35.8KiB/s (36.6kB/s)(5940KiB/166112msec) clat (msec): min=5, max=711, avg=22.83, stdev=30.88 lat (msec): min=5, max=711, avg=22.84, stdev=30.88 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 31], 90.00th=[ 52], 95.00th=[ 70], | 99.00th=[ 109], 99.50th=[ 146], 99.90th=[ 351], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 112, per=25.87%, avg=37.25, stdev=24.34, samples=312 iops : min= 1, max= 28, avg= 8.75, stdev= 6.15, samples=312 write: IOPS=9, BW=38.2KiB/s (39.1kB/s)(6348KiB/166112msec); 0 zone resets clat (msec): min=30, max=546, avg=83.10, stdev=40.97 lat (msec): min=30, max=546, avg=83.10, stdev=40.97 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 40], 10.00th=[ 44], 20.00th=[ 51], | 30.00th=[ 58], 40.00th=[ 65], 50.00th=[ 73], 60.00th=[ 82], | 70.00th=[ 93], 80.00th=[ 112], 90.00th=[ 138], 95.00th=[ 161], | 99.00th=[ 209], 99.50th=[ 232], 99.90th=[ 393], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 80, per=25.04%, avg=37.81, stdev=17.30, samples=328 iops : min= 1, max= 20, avg= 8.89, stdev= 4.43, samples=328 lat (msec) : 10=14.68%, 20=19.40%, 50=18.68%, 100=33.01%, 250=13.93% lat (msec) : 500=0.23%, 750=0.07% cpu : usr=0.06%, sys=2.13%, ctx=5464, 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=145091: Sat Aug 29 06:54:55 2026 read: IOPS=9, BW=36.4KiB/s (37.3kB/s)(6028KiB/165626msec) clat (msec): min=4, max=352, avg=23.84, stdev=26.86 lat (msec): min=4, max=352, avg=23.84, stdev=26.86 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 23], 80.00th=[ 34], 90.00th=[ 54], 95.00th=[ 73], | 99.00th=[ 133], 99.50th=[ 159], 99.90th=[ 288], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 136, per=26.03%, avg=37.48, stdev=24.32, samples=315 iops : min= 1, max= 34, avg= 8.81, stdev= 6.14, samples=315 write: IOPS=9, BW=37.8KiB/s (38.7kB/s)(6260KiB/165626msec); 0 zone resets clat (msec): min=28, max=773, avg=82.67, stdev=45.97 lat (msec): min=28, max=773, avg=82.67, stdev=45.97 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 42], 10.00th=[ 45], 20.00th=[ 52], | 30.00th=[ 57], 40.00th=[ 64], 50.00th=[ 70], 60.00th=[ 78], | 70.00th=[ 91], 80.00th=[ 111], 90.00th=[ 138], 95.00th=[ 165], | 99.00th=[ 220], 99.50th=[ 251], 99.90th=[ 550], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 80, per=24.70%, avg=37.30, stdev=18.10, samples=328 iops : min= 1, max= 20, avg= 8.76, stdev= 4.62, samples=328 lat (msec) : 10=13.54%, 20=19.47%, 50=19.69%, 100=33.79%, 250=13.18% lat (msec) : 500=0.26%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=2.12%, ctx=5502, 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=145093: Sat Aug 29 06:54:55 2026 read: IOPS=9, BW=36.5KiB/s (37.4kB/s)(6052KiB/165685msec) clat (msec): min=5, max=288, avg=22.15, stdev=22.55 lat (msec): min=5, max=288, avg=22.15, stdev=22.55 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 21], 80.00th=[ 31], 90.00th=[ 50], 95.00th=[ 71], | 99.00th=[ 101], 99.50th=[ 125], 99.90th=[ 207], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 7, max= 112, per=26.39%, avg=38.00, stdev=23.45, samples=312 iops : min= 1, max= 28, avg= 8.94, stdev= 5.93, samples=312 write: IOPS=9, BW=37.6KiB/s (38.5kB/s)(6236KiB/165685msec); 0 zone resets clat (msec): min=25, max=762, avg=84.57, stdev=47.55 lat (msec): min=25, max=762, avg=84.58, stdev=47.55 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 41], 10.00th=[ 45], 20.00th=[ 53], | 30.00th=[ 58], 40.00th=[ 64], 50.00th=[ 72], 60.00th=[ 81], | 70.00th=[ 92], 80.00th=[ 113], 90.00th=[ 142], 95.00th=[ 167], | 99.00th=[ 234], 99.50th=[ 305], 99.90th=[ 485], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 80, per=24.60%, avg=37.15, stdev=17.22, samples=328 iops : min= 1, max= 20, avg= 8.72, stdev= 4.40, samples=328 lat (msec) : 10=13.15%, 20=20.87%, 50=19.04%, 100=33.82%, 250=12.73% lat (msec) : 500=0.36%, 1000=0.03% cpu : usr=0.07%, sys=2.08%, ctx=5542, 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=145KiB/s (148kB/s), 35.8KiB/s-36.5KiB/s (36.6kB/s-37.4kB/s), io=23.4MiB (24.6MB), run=165626-166112msec WRITE: bw=151KiB/s (155kB/s), 37.6KiB/s-38.2KiB/s (38.5kB/s-39.1kB/s), io=24.6MiB (25.7MB), run=165626-166112msec 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=145142: Sat Aug 29 06:55:18 2026 read: IOPS=22, BW=360KiB/s (369kB/s)(5920KiB/16428msec) clat (usec): min=42, max=181115, avg=21797.14, stdev=17199.84 lat (usec): min=43, max=181116, avg=21798.55, stdev=17199.81 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 79], 10.00th=[ 102], 20.00th=[ 10552], | 30.00th=[ 14746], 40.00th=[ 17171], 50.00th=[ 20579], 60.00th=[ 23725], | 70.00th=[ 27132], 80.00th=[ 31589], 90.00th=[ 39584], 95.00th=[ 51119], | 99.00th=[ 65274], 99.50th=[100140], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 63, max= 606, per=24.39%, avg=355.34, stdev=108.02, samples=32 iops : min= 3, max= 37, avg=21.53, stdev= 6.82, samples=32 write: IOPS=24, BW=388KiB/s (397kB/s)(6368KiB/16428msec); 0 zone resets clat (usec): min=1439, max=204253, avg=20747.69, stdev=21714.29 lat (usec): min=1441, max=204255, avg=20750.26, stdev=21714.24 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2474], 10.00th=[ 3064], 20.00th=[ 4817], | 30.00th=[ 6521], 40.00th=[ 9110], 50.00th=[ 13698], 60.00th=[ 17957], | 70.00th=[ 24511], 80.00th=[ 34866], 90.00th=[ 48497], 95.00th=[ 63701], | 99.00th=[101188], 99.50th=[112722], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 159, max= 672, per=25.30%, avg=387.78, stdev=131.57, samples=32 iops : min= 9, max= 42, avg=23.56, stdev= 8.35, samples=32 lat (usec) : 50=0.52%, 100=4.17%, 250=2.73%, 500=0.78%, 750=0.13% lat (msec) : 2=1.04%, 4=7.42%, 10=13.67%, 20=25.52%, 50=36.85% lat (msec) : 100=6.38%, 250=0.78% cpu : usr=0.10%, sys=15.23%, ctx=1905, 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=145143: Sat Aug 29 06:55:18 2026 read: IOPS=22, BW=360KiB/s (369kB/s)(5744KiB/15948msec) clat (usec): min=39, max=168167, avg=22662.03, stdev=17734.82 lat (usec): min=39, max=168169, avg=22667.10, stdev=17730.70 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 75], 10.00th=[ 135], 20.00th=[ 11863], | 30.00th=[ 14615], 40.00th=[ 17695], 50.00th=[ 21103], 60.00th=[ 24511], | 70.00th=[ 27395], 80.00th=[ 31327], 90.00th=[ 40109], 95.00th=[ 51643], | 99.00th=[ 91751], 99.50th=[ 98042], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 54, max= 574, per=24.86%, avg=362.19, stdev=121.36, samples=31 iops : min= 3, max= 35, avg=21.97, stdev= 7.63, samples=31 write: IOPS=25, BW=410KiB/s (420kB/s)(6544KiB/15948msec); 0 zone resets clat (usec): min=1238, max=209790, avg=18924.06, stdev=21621.21 lat (usec): min=1239, max=209791, avg=18926.41, stdev=21621.26 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2180], 10.00th=[ 3032], 20.00th=[ 3949], | 30.00th=[ 5669], 40.00th=[ 7635], 50.00th=[ 11338], 60.00th=[ 16188], | 70.00th=[ 22152], 80.00th=[ 30278], 90.00th=[ 45351], 95.00th=[ 57934], | 99.00th=[ 83362], 99.50th=[135267], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 190, max= 661, per=26.85%, avg=411.58, stdev=133.05, samples=31 iops : min= 11, max= 41, avg=25.06, stdev= 8.47, samples=31 lat (usec) : 50=0.26%, 100=3.12%, 250=2.47%, 500=0.52%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=1.95%, 4=8.72%, 10=15.63%, 20=25.00%, 50=35.29% lat (msec) : 100=6.12%, 250=0.52% cpu : usr=0.13%, sys=15.70%, ctx=1824, 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=145144: Sat Aug 29 06:55:18 2026 read: IOPS=24, BW=389KiB/s (399kB/s)(6256KiB/16073msec) clat (usec): min=48, max=125969, avg=21895.83, stdev=16096.75 lat (usec): min=49, max=125970, avg=21897.34, stdev=16096.73 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 77], 10.00th=[ 102], 20.00th=[ 11731], | 30.00th=[ 15664], 40.00th=[ 17957], 50.00th=[ 20841], 60.00th=[ 23462], | 70.00th=[ 27395], 80.00th=[ 31327], 90.00th=[ 39060], 95.00th=[ 46400], | 99.00th=[ 85459], 99.50th=[110625], 99.90th=[126354], 99.95th=[126354], | 99.99th=[126354] bw ( KiB/s): min= 127, max= 736, per=27.00%, avg=393.42, stdev=127.78, samples=31 iops : min= 7, max= 46, avg=23.94, stdev= 8.15, samples=31 write: IOPS=23, BW=375KiB/s (384kB/s)(6032KiB/16073msec); 0 zone resets clat (usec): min=1585, max=170794, avg=19724.68, stdev=20654.75 lat (usec): min=1588, max=170797, avg=19727.20, stdev=20654.97 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2114], 10.00th=[ 2868], 20.00th=[ 4015], | 30.00th=[ 5538], 40.00th=[ 8586], 50.00th=[ 12649], 60.00th=[ 18220], | 70.00th=[ 23462], 80.00th=[ 33424], 90.00th=[ 47449], 95.00th=[ 55837], | 99.00th=[ 91751], 99.50th=[114820], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 159, max= 606, per=24.47%, avg=375.16, stdev=104.04, samples=31 iops : min= 9, max= 37, avg=22.77, stdev= 6.52, samples=31 lat (usec) : 50=0.13%, 100=4.82%, 250=2.21%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=1.69%, 4=8.46%, 10=12.50%, 20=24.35%, 50=39.71% lat (msec) : 100=4.95%, 250=0.65% cpu : usr=0.14%, sys=15.18%, ctx=1858, 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=145145: Sat Aug 29 06:55:18 2026 read: IOPS=23, BW=378KiB/s (388kB/s)(6032KiB/15937msec) clat (usec): min=41, max=134627, avg=22167.40, stdev=17227.65 lat (usec): min=41, max=134628, avg=22170.20, stdev=17227.36 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 105], 20.00th=[ 8291], | 30.00th=[ 15533], 40.00th=[ 18220], 50.00th=[ 20841], 60.00th=[ 23987], | 70.00th=[ 27657], 80.00th=[ 32637], 90.00th=[ 42206], 95.00th=[ 53216], | 99.00th=[ 78119], 99.50th=[108528], 99.90th=[135267], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 190, max= 606, per=25.69%, avg=374.32, stdev=111.84, samples=31 iops : min= 11, max= 37, avg=22.74, stdev= 7.02, samples=31 write: IOPS=24, BW=393KiB/s (402kB/s)(6256KiB/15937msec); 0 zone resets clat (usec): min=1342, max=165228, avg=19114.74, stdev=19000.32 lat (usec): min=1345, max=165230, avg=19117.89, stdev=19000.48 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 2278], 10.00th=[ 3163], 20.00th=[ 4015], | 30.00th=[ 6194], 40.00th=[ 8979], 50.00th=[ 12387], 60.00th=[ 18220], | 70.00th=[ 23200], 80.00th=[ 32375], 90.00th=[ 44827], 95.00th=[ 53216], | 99.00th=[ 85459], 99.50th=[101188], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 223, max= 637, per=25.41%, avg=389.55, stdev=99.05, samples=31 iops : min= 13, max= 39, avg=23.68, stdev= 6.25, samples=31 lat (usec) : 50=0.39%, 100=4.30%, 250=3.91%, 500=0.39%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=2.08%, 4=8.33%, 10=12.11%, 20=23.96%, 50=37.63% lat (msec) : 100=5.99%, 250=0.52% cpu : usr=0.16%, sys=15.38%, ctx=1915, 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=1458KiB/s (1493kB/s), 360KiB/s-389KiB/s (369kB/s-399kB/s), io=23.4MiB (24.5MB), run=15937-16428msec WRITE: bw=1534KiB/s (1571kB/s), 375KiB/s-410KiB/s (384kB/s-420kB/s), io=24.6MiB (25.8MB), run=15937-16428msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145137: Sat Aug 29 06:55:39 2026 read: IOPS=9, BW=157KiB/s (161kB/s)(5920KiB/37746msec) clat (msec): min=5, max=140, avg=23.55, stdev=20.55 lat (msec): min=5, max=140, avg=23.55, stdev=20.55 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 23], 80.00th=[ 32], 90.00th=[ 48], 95.00th=[ 61], | 99.00th=[ 130], 99.50th=[ 140], 99.90th=[ 142], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 31, max= 352, per=24.58%, avg=154.86, stdev=80.33, samples=74 iops : min= 1, max= 22, avg= 9.09, stdev= 5.06, samples=74 write: IOPS=10, BW=169KiB/s (173kB/s)(6368KiB/37746msec); 0 zone resets clat (msec): min=30, max=196, avg=72.71, stdev=29.91 lat (msec): min=30, max=196, avg=72.71, stdev=29.91 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 42], 10.00th=[ 45], 20.00th=[ 50], | 30.00th=[ 56], 40.00th=[ 60], 50.00th=[ 64], 60.00th=[ 70], | 70.00th=[ 78], 80.00th=[ 91], 90.00th=[ 112], 95.00th=[ 140], | 99.00th=[ 178], 99.50th=[ 190], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 63, max= 288, per=25.40%, avg=168.41, stdev=63.30, samples=74 iops : min= 3, max= 18, avg= 9.95, stdev= 4.11, samples=74 lat (msec) : 10=7.03%, 20=22.79%, 50=24.61%, 100=37.37%, 250=8.20% cpu : usr=0.08%, sys=3.15%, ctx=1528, 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=145138: Sat Aug 29 06:55:39 2026 read: IOPS=9, BW=152KiB/s (155kB/s)(5744KiB/37866msec) clat (msec): min=6, max=205, avg=22.65, stdev=21.55 lat (msec): min=6, max=205, avg=22.66, stdev=21.55 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 23], 80.00th=[ 28], 90.00th=[ 40], 95.00th=[ 63], | 99.00th=[ 115], 99.50th=[ 142], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 31, max= 447, per=24.76%, avg=155.97, stdev=89.26, samples=73 iops : min= 1, max= 27, avg= 9.16, stdev= 5.64, samples=73 write: IOPS=10, BW=173KiB/s (177kB/s)(6544KiB/37866msec); 0 zone resets clat (msec): min=33, max=219, avg=72.52, stdev=29.74 lat (msec): min=33, max=219, avg=72.53, stdev=29.74 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 41], 10.00th=[ 44], 20.00th=[ 50], | 30.00th=[ 54], 40.00th=[ 59], 50.00th=[ 66], 60.00th=[ 72], | 70.00th=[ 79], 80.00th=[ 88], 90.00th=[ 115], 95.00th=[ 138], | 99.00th=[ 171], 99.50th=[ 178], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 31, max= 288, per=26.02%, avg=172.48, stdev=62.79, samples=75 iops : min= 1, max= 18, avg=10.20, stdev= 4.07, samples=75 lat (msec) : 10=7.55%, 20=21.74%, 50=25.39%, 100=37.24%, 250=8.07% cpu : usr=0.06%, sys=3.18%, ctx=1472, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145139: Sat Aug 29 06:55:39 2026 read: IOPS=10, BW=171KiB/s (175kB/s)(6256KiB/36592msec) clat (msec): min=5, max=147, avg=21.88, stdev=19.90 lat (msec): min=5, max=147, avg=21.89, stdev=19.90 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 28], 90.00th=[ 44], 95.00th=[ 66], | 99.00th=[ 124], 99.50th=[ 138], 99.90th=[ 148], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 31, max= 510, per=27.34%, avg=172.25, stdev=105.63, samples=72 iops : min= 1, max= 31, avg=10.19, stdev= 6.66, samples=72 write: IOPS=10, BW=165KiB/s (169kB/s)(6032KiB/36592msec); 0 zone resets clat (msec): min=29, max=360, avg=74.14, stdev=34.49 lat (msec): min=29, max=360, avg=74.15, stdev=34.48 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 40], 10.00th=[ 44], 20.00th=[ 51], | 30.00th=[ 57], 40.00th=[ 61], 50.00th=[ 66], 60.00th=[ 72], | 70.00th=[ 81], 80.00th=[ 91], 90.00th=[ 116], 95.00th=[ 142], | 99.00th=[ 192], 99.50th=[ 247], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 31, max= 288, per=24.78%, avg=164.31, stdev=59.57, samples=72 iops : min= 1, max= 18, avg= 9.69, stdev= 3.89, samples=72 lat (msec) : 10=10.29%, 20=22.40%, 50=23.44%, 100=35.81%, 250=7.94% lat (msec) : 500=0.13% cpu : usr=0.06%, sys=3.26%, ctx=1557, 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=145140: Sat Aug 29 06:55:39 2026 read: IOPS=9, BW=159KiB/s (163kB/s)(6032KiB/37998msec) clat (msec): min=6, max=149, avg=22.71, stdev=21.03 lat (msec): min=6, max=149, avg=22.71, stdev=21.03 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 22], 80.00th=[ 27], 90.00th=[ 44], 95.00th=[ 71], | 99.00th=[ 120], 99.50th=[ 133], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 31, max= 416, per=25.30%, avg=159.38, stdev=91.64, samples=74 iops : min= 1, max= 26, avg= 9.38, stdev= 5.83, samples=74 write: IOPS=10, BW=165KiB/s (169kB/s)(6256KiB/37998msec); 0 zone resets clat (msec): min=34, max=365, avg=75.17, stdev=35.85 lat (msec): min=34, max=365, avg=75.18, stdev=35.85 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 40], 10.00th=[ 44], 20.00th=[ 50], | 30.00th=[ 56], 40.00th=[ 62], 50.00th=[ 67], 60.00th=[ 73], | 70.00th=[ 82], 80.00th=[ 92], 90.00th=[ 115], 95.00th=[ 144], | 99.00th=[ 218], 99.50th=[ 228], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 31, max= 256, per=24.72%, avg=163.92, stdev=60.21, samples=75 iops : min= 1, max= 16, avg= 9.67, stdev= 3.91, samples=75 lat (msec) : 10=8.72%, 20=23.44%, 50=23.70%, 100=36.46%, 250=7.55% lat (msec) : 500=0.13% cpu : usr=0.08%, sys=3.17%, ctx=1503, 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=630KiB/s (645kB/s), 152KiB/s-171KiB/s (155kB/s-175kB/s), io=23.4MiB (24.5MB), run=36592-37998msec WRITE: bw=663KiB/s (679kB/s), 165KiB/s-173KiB/s (169kB/s-177kB/s), io=24.6MiB (25.8MB), run=36592-37998msec 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=145159: Sat Aug 29 06:55:48 2026 read: IOPS=1, BW=1952KiB/s (1998kB/s)(7168KiB/3673msec) clat (msec): min=111, max=432, avg=222.23, stdev=116.47 lat (msec): min=111, max=432, avg=222.23, stdev=116.47 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 167], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 317], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 1965, max= 4134, per=45.62%, avg=2543.25, stdev=1061.04, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1394KiB/s (1427kB/s)(5120KiB/3673msec); 0 zone resets clat (msec): min=222, max=561, avg=419.90, stdev=140.57 lat (msec): min=222, max=561, avg=420.01, stdev=140.57 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1976, max= 2039, per=25.76%, avg=2010.50, stdev=31.33, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=28.68%, ctx=508, 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=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=145161: Sat Aug 29 06:55:48 2026 read: IOPS=0, BW=598KiB/s (612kB/s)(2048KiB/3427msec) clat (usec): min=582, max=174532, avg=87557.35, stdev=123000.96 lat (usec): min=583, max=174535, avg=87559.73, stdev=123002.39 clat percentiles (usec): | 1.00th=[ 586], 5.00th=[ 586], 10.00th=[ 586], 20.00th=[ 586], | 30.00th=[ 586], 40.00th=[ 586], 50.00th=[ 586], 60.00th=[175113], | 70.00th=[175113], 80.00th=[175113], 90.00th=[175113], 95.00th=[175113], | 99.00th=[175113], 99.50th=[175113], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 1973, max= 2019, per=35.80%, avg=1996.00, stdev=32.53, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2988KiB/s (3060kB/s)(10.0MiB/3427msec); 0 zone resets clat (msec): min=111, max=518, avg=318.06, stdev=135.17 lat (msec): min=111, max=518, avg=318.15, stdev=135.17 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 159], | 30.00th=[ 178], 40.00th=[ 288], 50.00th=[ 305], 60.00th=[ 368], | 70.00th=[ 376], 80.00th=[ 439], 90.00th=[ 443], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 1973, max= 6095, per=41.17%, avg=3213.40, stdev=1824.45, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=50.00%, 750=8.33% cpu : usr=0.03%, sys=28.81%, ctx=267, 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=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=145163: Sat Aug 29 06:55:48 2026 read: IOPS=1, BW=1743KiB/s (1785kB/s)(6144KiB/3524msec) clat (usec): min=735, max=426355, avg=215356.62, stdev=184553.82 lat (usec): min=737, max=426356, avg=215358.10, stdev=184553.71 clat percentiles (usec): | 1.00th=[ 734], 5.00th=[ 734], 10.00th=[ 734], 20.00th=[ 873], | 30.00th=[ 873], 40.00th=[221250], 50.00th=[221250], 60.00th=[246416], | 70.00th=[396362], 80.00th=[396362], 90.00th=[425722], 95.00th=[425722], | 99.00th=[425722], 99.50th=[425722], 99.90th=[425722], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 1965, max= 3984, per=47.38%, avg=2641.67, stdev=1162.51, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1743KiB/s (1785kB/s)(6144KiB/3524msec); 0 zone resets clat (msec): min=226, max=519, avg=342.67, stdev=129.38 lat (msec): min=226, max=519, avg=342.80, stdev=129.41 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 401], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 1400, max= 2039, per=24.12%, avg=1883.00, stdev=272.08, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.03%, sys=26.00%, ctx=288, 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=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=145165: Sat Aug 29 06:55:48 2026 read: IOPS=1, BW=1571KiB/s (1608kB/s)(5120KiB/3260msec) clat (usec): min=685, max=346959, avg=158602.11, stdev=134890.81 lat (usec): min=686, max=346969, avg=158605.23, stdev=134894.05 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[ 685], | 30.00th=[ 63177], 40.00th=[ 63177], 50.00th=[168821], 60.00th=[168821], | 70.00th=[214959], 80.00th=[214959], 90.00th=[346031], 95.00th=[346031], | 99.00th=[346031], 99.50th=[346031], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 1965, max= 5930, per=70.81%, avg=3947.50, stdev=2803.68, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2199KiB/s (2252kB/s)(7168KiB/3260msec); 0 zone resets clat (msec): min=189, max=488, avg=345.92, stdev=105.03 lat (msec): min=189, max=488, avg=346.06, stdev=105.03 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 234], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 384], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 409], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 1965, max= 2929, per=27.93%, avg=2180.20, stdev=419.54, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=50.00% cpu : usr=0.00%, sys=27.22%, ctx=358, 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=5576KiB/s (5710kB/s), 598KiB/s-1952KiB/s (612kB/s-1998kB/s), io=20.0MiB (20.0MB), run=3260-3673msec WRITE: bw=7806KiB/s (7994kB/s), 1394KiB/s-2988KiB/s (1427kB/s-3060kB/s), io=28.0MiB (29.4MB), run=3260-3673msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145158: Sat Aug 29 06:55:49 2026 read: IOPS=2, BW=2230KiB/s (2283kB/s)(7168KiB/3215msec) clat (msec): min=91, max=300, avg=185.68, stdev=70.50 lat (msec): min=91, max=300, avg=185.68, stdev=70.50 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 142], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 178], 80.00th=[ 257], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 1921, max= 5774, per=57.94%, avg=2925.00, stdev=1900.09, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 write: IOPS=1, BW=1593KiB/s (1631kB/s)(5120KiB/3215msec); 0 zone resets clat (msec): min=222, max=608, avg=378.46, stdev=141.48 lat (msec): min=222, max=608, avg=378.56, stdev=141.47 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 338], 40.00th=[ 338], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1921, max= 4007, per=35.09%, avg=2480.00, stdev=1019.11, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, 750=8.33% cpu : usr=0.03%, sys=10.42%, ctx=85, 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=145160: Sat Aug 29 06:55:49 2026 read: IOPS=0, BW=509KiB/s (521kB/s)(2048KiB/4027msec) clat (msec): min=143, max=228, avg=186.26, stdev=59.84 lat (msec): min=143, max=228, avg=186.26, stdev=59.84 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 144], 60.00th=[ 228], | 70.00th=[ 228], 80.00th=[ 228], 90.00th=[ 228], 95.00th=[ 228], | 99.00th=[ 228], 99.50th=[ 228], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 1354, max= 2048, per=33.70%, avg=1701.00, stdev=490.73, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2543KiB/s (2604kB/s)(10.0MiB/4027msec); 0 zone resets clat (msec): min=98, max=780, avg=356.57, stdev=268.47 lat (msec): min=98, max=780, avg=356.69, stdev=268.43 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 109], | 30.00th=[ 138], 40.00th=[ 167], 50.00th=[ 171], 60.00th=[ 251], | 70.00th=[ 550], 80.00th=[ 642], 90.00th=[ 667], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1992, max= 6131, per=46.03%, avg=3252.60, stdev=1844.97, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.82, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=8.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=10.11%, ctx=111, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145162: Sat Aug 29 06:55:49 2026 read: IOPS=1, BW=1571KiB/s (1609kB/s)(6144KiB/3910msec) clat (msec): min=130, max=597, avg=285.00, stdev=175.73 lat (msec): min=130, max=597, avg=285.00, stdev=175.73 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 232], | 70.00th=[ 380], 80.00th=[ 380], 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= 1921, max= 2048, per=39.83%, avg=2010.40, stdev=55.27, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 write: IOPS=1, BW=1571KiB/s (1609kB/s)(6144KiB/3910msec); 0 zone resets clat (msec): min=218, max=674, avg=355.94, stdev=164.95 lat (msec): min=218, max=674, avg=356.09, stdev=164.97 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 338], | 70.00th=[ 368], 80.00th=[ 368], 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= 1370, max= 4087, per=40.22%, avg=2842.50, stdev=1400.90, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 250=41.67%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=8.90%, ctx=115, 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=145164: Sat Aug 29 06:55:49 2026 read: IOPS=1, BW=1262KiB/s (1292kB/s)(5120KiB/4057msec) clat (msec): min=43, max=480, avg=264.41, stdev=199.77 lat (msec): min=43, max=480, avg=264.41, stdev=199.77 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 44], 10.00th=[ 44], 20.00th=[ 44], | 30.00th=[ 85], 40.00th=[ 85], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 2043, max= 3842, per=52.38%, avg=2644.33, stdev=1037.21, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1767KiB/s (1809kB/s)(7168KiB/4057msec); 0 zone resets clat (msec): min=82, max=721, avg=377.15, stdev=267.30 lat (msec): min=84, max=721, avg=377.45, stdev=267.10 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 88], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 426], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 684], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1921, max= 3992, per=35.39%, avg=2501.00, stdev=995.73, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=8.33%, 500=41.67%, 750=16.67% cpu : usr=0.05%, sys=6.76%, ctx=103, 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=5048KiB/s (5169kB/s), 509KiB/s-2230KiB/s (521kB/s-2283kB/s), io=20.0MiB (20.0MB), run=3215-4057msec WRITE: bw=7067KiB/s (7237kB/s), 1571KiB/s-2543KiB/s (1609kB/s-2604kB/s), io=28.0MiB (29.4MB), run=3215-4057msec 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=145171: Sat Aug 29 06:56:00 2026 read: IOPS=0, BW=2928KiB/s (2998kB/s)(12.0MiB/4197msec) clat (msec): min=575, max=2875, avg=1383.98, stdev=1293.32 lat (msec): min=575, max=2875, avg=1383.98, stdev=1293.32 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 2869], 80.00th=[ 2869], 90.00th=[ 2869], 95.00th=[ 2869], | 99.00th=[ 2869], 99.50th=[ 2869], 99.90th=[ 2869], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 7968, max= 8192, per=100.00%, avg=8080.00, stdev=158.39, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=14.25%, ctx=940, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145172: Sat Aug 29 06:56:00 2026 read: IOPS=0, BW=1064KiB/s (1090kB/s)(4096KiB/3849msec) clat (nsec): min=2877.4M, max=2877.4M, avg=2877354988.00, stdev= 0.00 lat (nsec): min=2877.4M, max=2877.4M, avg=2877356433.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2869], 5.00th=[ 2869], 10.00th=[ 2869], 20.00th=[ 2869], | 30.00th=[ 2869], 40.00th=[ 2869], 50.00th=[ 2869], 60.00th=[ 2869], | 70.00th=[ 2869], 80.00th=[ 2869], 90.00th=[ 2869], 95.00th=[ 2869], | 99.00th=[ 2869], 99.50th=[ 2869], 99.90th=[ 2869], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2128KiB/s (2179kB/s)(8192KiB/3849msec); 0 zone resets clat (msec): min=213, max=715, avg=464.73, stdev=354.81 lat (msec): min=214, max=716, avg=465.18, stdev=355.13 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 213], 60.00th=[ 718], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=9.80%, ctx=482, 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=145173: Sat Aug 29 06:56:00 2026 write: IOPS=0, BW=2733KiB/s (2799kB/s)(12.0MiB/4496msec); 0 zone resets clat (msec): min=332, max=3189, avg=1475.29, stdev=1511.69 lat (msec): min=332, max=3189, avg=1475.98, stdev=1511.64 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 3205], 80.00th=[ 3205], 90.00th=[ 3205], 95.00th=[ 3205], | 99.00th=[ 3205], 99.50th=[ 3205], 99.90th=[ 3205], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.04%, sys=7.25%, ctx=67, 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=145174: Sat Aug 29 06:56:00 2026 write: IOPS=0, BW=3013KiB/s (3086kB/s)(12.0MiB/4078msec); 0 zone resets clat (msec): min=267, max=3456, avg=1355.72, stdev=1819.76 lat (msec): min=267, max=3456, avg=1356.21, stdev=1819.72 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 3473], 80.00th=[ 3473], 90.00th=[ 3473], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 7160, max= 8192, per=100.00%, avg=7676.00, stdev=729.73, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=4.17%, ctx=54, 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=3904KiB/s (3997kB/s), 1064KiB/s-2928KiB/s (1090kB/s-2998kB/s), io=16.0MiB (16.8MB), run=3849-4197msec WRITE: bw=7288KiB/s (7463kB/s), 2128KiB/s-3013KiB/s (2179kB/s-3086kB/s), io=32.0MiB (33.6MB), run=3849-4496msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145176: Sat Aug 29 06:56:00 2026 read: IOPS=0, BW=2732KiB/s (2797kB/s)(12.0MiB/4498msec) clat (msec): min=94, max=3484, avg=1488.85, stdev=1773.19 lat (msec): min=94, max=3484, avg=1488.85, stdev=1773.19 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 94], | 30.00th=[ 94], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 3473], 80.00th=[ 3473], 90.00th=[ 3473], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.40%, ctx=49, 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=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=145177: Sat Aug 29 06:56:00 2026 read: IOPS=0, BW=961KiB/s (984kB/s)(4096KiB/4264msec) clat (nsec): min=3260.4M, max=3260.4M, avg=3260448537.00, stdev= 0.00 lat (nsec): min=3260.4M, max=3260.4M, avg=3260449193.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3272], 5.00th=[ 3272], 10.00th=[ 3272], 20.00th=[ 3272], | 30.00th=[ 3272], 40.00th=[ 3272], 50.00th=[ 3272], 60.00th=[ 3272], | 70.00th=[ 3272], 80.00th=[ 3272], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1921KiB/s (1967kB/s)(8192KiB/4264msec); 0 zone resets clat (msec): min=199, max=780, avg=490.04, stdev=410.96 lat (msec): min=200, max=781, avg=490.73, stdev=410.64 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 201], 50.00th=[ 201], 60.00th=[ 785], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=4.18%, ctx=40, 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=145178: Sat Aug 29 06:56:00 2026 write: IOPS=0, BW=2829KiB/s (2897kB/s)(12.0MiB/4344msec); 0 zone resets clat (msec): min=203, max=3192, avg=1447.20, stdev=1556.35 lat (msec): min=204, max=3192, avg=1447.61, stdev=1556.33 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 3205], 80.00th=[ 3205], 90.00th=[ 3205], 95.00th=[ 3205], | 99.00th=[ 3205], 99.50th=[ 3205], 99.90th=[ 3205], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.80%, ctx=41, 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=145179: Sat Aug 29 06:56:00 2026 write: IOPS=0, BW=3007KiB/s (3080kB/s)(12.0MiB/4086msec); 0 zone resets clat (msec): min=170, max=3507, avg=1361.12, stdev=1862.90 lat (msec): min=171, max=3508, avg=1361.59, stdev=1862.91 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 3507], 80.00th=[ 3507], 90.00th=[ 3507], 95.00th=[ 3507], | 99.00th=[ 3507], 99.50th=[ 3507], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 7275, max= 8175, per=100.00%, avg=7725.00, stdev=636.40, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.01%, ctx=48, 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=3643KiB/s (3730kB/s), 961KiB/s-2732KiB/s (984kB/s-2797kB/s), io=16.0MiB (16.8MB), run=4264-4498msec WRITE: bw=7543KiB/s (7724kB/s), 1921KiB/s-3007KiB/s (1967kB/s-3080kB/s), io=32.0MiB (33.6MB), run=4086-4344msec