== sanity test 398b: DIO and buffer IO race ============== 06:51:08 (1789383068) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.2031 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=143739: Mon Sep 14 06:53:29 2026 read: IOPS=12, BW=49.9KiB/s (51.1kB/s)(5992KiB/120139msec) clat (usec): min=32, max=648305, avg=38705.11, stdev=32692.56 lat (usec): min=33, max=648307, avg=38706.32, stdev=32692.54 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 80], 20.00th=[ 17433], | 30.00th=[ 22676], 40.00th=[ 27132], 50.00th=[ 32375], 60.00th=[ 39060], | 70.00th=[ 47449], 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 89654], | 99.00th=[128451], 99.50th=[152044], 99.90th=[278922], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 5, max= 111, per=25.21%, avg=49.66, stdev=21.77, samples=236 iops : min= 1, max= 27, avg=11.76, stdev= 5.49, samples=236 write: IOPS=13, BW=52.4KiB/s (53.7kB/s)(6296KiB/120139msec); 0 zone resets clat (usec): min=831, max=340814, avg=39415.85, stdev=42321.57 lat (usec): min=833, max=340815, avg=39417.99, stdev=42321.53 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1139], 10.00th=[ 1221], 20.00th=[ 3130], | 30.00th=[ 7046], 40.00th=[ 16450], 50.00th=[ 27657], 60.00th=[ 39060], | 70.00th=[ 51643], 80.00th=[ 68682], 90.00th=[ 95945], 95.00th=[122160], | 99.00th=[177210], 99.50th=[198181], 99.90th=[337642], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 119, per=25.32%, avg=52.17, stdev=22.02, samples=236 iops : min= 1, max= 29, avg=12.39, stdev= 5.52, samples=236 lat (usec) : 50=0.85%, 100=4.46%, 250=0.46%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=8.01%, 4=3.87%, 10=6.15%, 20=9.90%, 50=36.30% lat (msec) : 100=23.67%, 250=5.86%, 500=0.13%, 750=0.03% cpu : usr=0.06%, sys=5.04%, ctx=6308, 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=143740: Mon Sep 14 06:53:29 2026 read: IOPS=12, BW=48.9KiB/s (50.1kB/s)(5940KiB/121493msec) clat (usec): min=29, max=603823, avg=39533.79, stdev=35703.25 lat (usec): min=29, max=603826, avg=39534.99, stdev=35703.29 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 82], 20.00th=[ 17433], | 30.00th=[ 22676], 40.00th=[ 27395], 50.00th=[ 32375], 60.00th=[ 39060], | 70.00th=[ 47449], 80.00th=[ 58459], 90.00th=[ 77071], 95.00th=[ 94897], | 99.00th=[160433], 99.50th=[185598], 99.90th=[371196], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 5, max= 132, per=24.45%, avg=48.17, stdev=22.15, samples=239 iops : min= 1, max= 33, avg=11.38, stdev= 5.56, samples=239 write: IOPS=13, BW=52.2KiB/s (53.5kB/s)(6348KiB/121493msec); 0 zone resets clat (usec): min=949, max=415987, avg=39476.17, stdev=41131.75 lat (usec): min=950, max=415988, avg=39478.38, stdev=41131.12 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1156], 10.00th=[ 1369], 20.00th=[ 3720], | 30.00th=[ 7242], 40.00th=[ 17171], 50.00th=[ 29754], 60.00th=[ 40109], | 70.00th=[ 53216], 80.00th=[ 68682], 90.00th=[ 93848], 95.00th=[117965], | 99.00th=[170918], 99.50th=[196084], 99.90th=[270533], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 5, max= 202, per=25.05%, avg=51.61, stdev=23.79, samples=238 iops : min= 1, max= 50, avg=12.24, stdev= 5.97, samples=238 lat (usec) : 50=1.14%, 100=4.00%, 250=0.55%, 500=0.29%, 750=0.07% lat (usec) : 1000=0.20% lat (msec) : 2=6.93%, 4=4.04%, 10=6.64%, 20=9.86%, 50=36.26% lat (msec) : 100=23.60%, 250=6.22%, 500=0.16%, 750=0.03% cpu : usr=0.06%, sys=4.98%, ctx=6384, 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=143741: Mon Sep 14 06:53:29 2026 read: IOPS=12, BW=50.8KiB/s (51.0kB/s)(6028KiB/118749msec) clat (usec): min=32, max=271509, avg=37740.66, stdev=29772.63 lat (usec): min=32, max=271510, avg=37743.76, stdev=29772.95 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 55], 10.00th=[ 70], 20.00th=[ 16188], | 30.00th=[ 21365], 40.00th=[ 26870], 50.00th=[ 32375], 60.00th=[ 38536], | 70.00th=[ 46400], 80.00th=[ 58983], 90.00th=[ 74974], 95.00th=[ 90702], | 99.00th=[129500], 99.50th=[152044], 99.90th=[267387], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 96, per=25.59%, avg=50.41, stdev=20.69, samples=233 iops : min= 1, max= 24, avg=11.95, stdev= 5.22, samples=233 write: IOPS=13, BW=52.7KiB/s (53.0kB/s)(6260KiB/118749msec); 0 zone resets clat (usec): min=929, max=825048, avg=39459.78, stdev=45470.34 lat (usec): min=930, max=825051, avg=39461.33, stdev=45470.36 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1156], 10.00th=[ 1319], 20.00th=[ 3294], | 30.00th=[ 7177], 40.00th=[ 17171], 50.00th=[ 29492], 60.00th=[ 40109], | 70.00th=[ 52691], 80.00th=[ 67634], 90.00th=[ 92799], 95.00th=[111674], | 99.00th=[183501], 99.50th=[227541], 99.90th=[362808], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 111, per=25.44%, avg=52.42, stdev=21.40, samples=233 iops : min= 1, max= 27, avg=12.45, stdev= 5.38, samples=233 lat (usec) : 50=1.04%, 100=4.49%, 250=0.49%, 500=0.16%, 750=0.07% lat (usec) : 1000=0.16% lat (msec) : 2=7.62%, 4=3.94%, 10=6.28%, 20=10.77%, 50=35.74% lat (msec) : 100=23.57%, 250=5.40%, 500=0.23%, 1000=0.03% cpu : usr=0.06%, sys=5.04%, ctx=6301, 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=143742: Mon Sep 14 06:53:29 2026 read: IOPS=12, BW=49.0KiB/s (51.2kB/s)(6052KiB/121062msec) clat (usec): min=33, max=299273, avg=38278.31, stdev=29809.15 lat (usec): min=33, max=299274, avg=38288.19, stdev=29802.98 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 73], 20.00th=[ 16712], | 30.00th=[ 22676], 40.00th=[ 27919], 50.00th=[ 33424], 60.00th=[ 39584], | 70.00th=[ 47449], 80.00th=[ 59507], 90.00th=[ 74974], 95.00th=[ 88605], | 99.00th=[125305], 99.50th=[160433], 99.90th=[235930], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 125, per=25.47%, avg=50.18, stdev=22.14, samples=236 iops : min= 1, max= 31, avg=11.89, stdev= 5.56, samples=236 write: IOPS=12, BW=51.5KiB/s (52.7kB/s)(6236KiB/121062msec); 0 zone resets clat (usec): min=993, max=696520, avg=40432.23, stdev=45220.46 lat (usec): min=994, max=696522, avg=40436.40, stdev=45219.46 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1156], 10.00th=[ 1287], 20.00th=[ 3425], | 30.00th=[ 7177], 40.00th=[ 18220], 50.00th=[ 29230], 60.00th=[ 40109], | 70.00th=[ 53740], 80.00th=[ 70779], 90.00th=[ 96994], 95.00th=[116917], | 99.00th=[175113], 99.50th=[202376], 99.90th=[354419], 99.95th=[700449], | 99.99th=[700449] bw ( KiB/s): min= 5, max= 102, per=24.77%, avg=51.02, stdev=19.35, samples=239 iops : min= 1, max= 25, avg=12.11, stdev= 4.87, samples=239 lat (usec) : 50=0.88%, 100=4.88%, 250=0.42%, 500=0.13%, 750=0.16% lat (usec) : 1000=0.07% lat (msec) : 2=7.62%, 4=3.55%, 10=6.41%, 20=9.44%, 50=36.95% lat (msec) : 100=23.44%, 250=5.83%, 500=0.20%, 750=0.03% cpu : usr=0.08%, sys=4.97%, ctx=6316, 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=198KiB/s (202kB/s), 48.9KiB/s-50.8KiB/s (50.1kB/s-51.0kB/s), io=23.4MiB (24.6MB), run=118749-121493msec WRITE: bw=207KiB/s (212kB/s), 51.5KiB/s-52.7KiB/s (52.7kB/s-53.0kB/s), io=24.6MiB (25.7MB), run=118749-121493msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143734: Mon Sep 14 06:55:44 2026 read: IOPS=5, BW=23.4KiB/s (23.9kB/s)(5992KiB/256585msec) clat (msec): min=5, max=793, avg=33.90, stdev=36.70 lat (msec): min=5, max=793, avg=33.90, stdev=36.69 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 46], 90.00th=[ 71], 95.00th=[ 89], | 99.00th=[ 157], 99.50th=[ 203], 99.90th=[ 422], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 103, per=27.67%, avg=25.73, stdev=17.39, samples=451 iops : min= 1, max= 25, avg= 5.82, stdev= 4.39, samples=451 write: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6296KiB/256585msec); 0 zone resets clat (msec): min=36, max=520, avg=130.48, stdev=61.49 lat (msec): min=36, max=520, avg=130.48, stdev=61.49 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 105], 50.00th=[ 115], 60.00th=[ 128], | 70.00th=[ 144], 80.00th=[ 169], 90.00th=[ 211], 95.00th=[ 247], | 99.00th=[ 347], 99.50th=[ 418], 99.90th=[ 481], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 7, max= 55, per=24.88%, avg=24.14, stdev=10.30, samples=503 iops : min= 1, max= 13, avg= 5.41, stdev= 2.66, samples=503 lat (msec) : 10=3.65%, 20=16.28%, 50=20.90%, 100=24.32%, 250=32.32% lat (msec) : 500=2.47%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.14%, ctx=5255, 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=143735: Mon Sep 14 06:55:44 2026 read: IOPS=5, BW=23.2KiB/s (23.8kB/s)(5940KiB/256023msec) clat (msec): min=4, max=742, avg=34.32, stdev=35.67 lat (msec): min=4, max=742, avg=34.32, stdev=35.67 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 46], 90.00th=[ 74], 95.00th=[ 95], | 99.00th=[ 161], 99.50th=[ 188], 99.90th=[ 284], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 93, per=27.83%, avg=25.88, stdev=17.08, samples=444 iops : min= 1, max= 23, avg= 5.85, stdev= 4.34, samples=444 write: IOPS=6, BW=24.8KiB/s (25.4kB/s)(6348KiB/256023msec); 0 zone resets clat (msec): min=41, max=578, avg=128.93, stdev=59.78 lat (msec): min=41, max=578, avg=128.94, stdev=59.78 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 63], 10.00th=[ 70], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 104], 50.00th=[ 114], 60.00th=[ 129], | 70.00th=[ 144], 80.00th=[ 169], 90.00th=[ 209], 95.00th=[ 247], | 99.00th=[ 321], 99.50th=[ 359], 99.90th=[ 498], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 7, max= 48, per=25.14%, avg=24.38, stdev=10.42, samples=503 iops : min= 1, max= 12, avg= 5.47, stdev= 2.68, samples=503 lat (msec) : 10=4.00%, 20=15.76%, 50=20.41%, 100=25.13%, 250=32.29% lat (msec) : 500=2.34%, 750=0.07% cpu : usr=0.04%, sys=1.12%, ctx=5261, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143736: Mon Sep 14 06:55:44 2026 read: IOPS=5, BW=23.6KiB/s (24.2kB/s)(6028KiB/255502msec) clat (msec): min=5, max=369, avg=35.64, stdev=31.50 lat (msec): min=5, max=369, avg=35.64, stdev=31.50 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 52], 90.00th=[ 78], 95.00th=[ 100], | 99.00th=[ 148], 99.50th=[ 176], 99.90th=[ 226], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 7, max= 110, per=27.20%, avg=25.30, stdev=16.10, samples=461 iops : min= 1, max= 27, avg= 5.71, stdev= 4.08, samples=461 write: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6260KiB/255502msec); 0 zone resets clat (msec): min=39, max=917, avg=128.67, stdev=59.71 lat (msec): min=39, max=917, avg=128.68, stdev=59.71 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 105], 50.00th=[ 116], 60.00th=[ 129], | 70.00th=[ 146], 80.00th=[ 169], 90.00th=[ 203], 95.00th=[ 232], | 99.00th=[ 309], 99.50th=[ 347], 99.90th=[ 567], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 55, per=24.97%, avg=24.22, stdev=10.42, samples=499 iops : min= 1, max= 13, avg= 5.43, stdev= 2.69, samples=499 lat (msec) : 10=3.65%, 20=15.76%, 50=19.89%, 100=25.94%, 250=33.11% lat (msec) : 500=1.60%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.12%, ctx=5192, 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=143737: Mon Sep 14 06:55:44 2026 read: IOPS=5, BW=23.8KiB/s (24.4kB/s)(6052KiB/254295msec) clat (msec): min=4, max=332, avg=34.23, stdev=31.65 lat (msec): min=4, max=332, avg=34.23, stdev=31.65 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 49], 90.00th=[ 72], 95.00th=[ 95], | 99.00th=[ 167], 99.50th=[ 197], 99.90th=[ 275], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 95, per=28.51%, avg=26.51, stdev=17.89, samples=442 iops : min= 1, max= 23, avg= 6.02, stdev= 4.52, samples=442 write: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6236KiB/254295msec); 0 zone resets clat (msec): min=38, max=797, avg=129.61, stdev=62.86 lat (msec): min=38, max=797, avg=129.61, stdev=62.86 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 93], 40.00th=[ 103], 50.00th=[ 114], 60.00th=[ 128], | 70.00th=[ 142], 80.00th=[ 169], 90.00th=[ 209], 95.00th=[ 247], | 99.00th=[ 330], 99.50th=[ 388], 99.90th=[ 567], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 48, per=25.00%, avg=24.25, stdev=10.54, samples=496 iops : min= 1, max= 12, avg= 5.44, stdev= 2.71, samples=496 lat (msec) : 10=3.84%, 20=17.02%, 50=19.50%, 100=26.14%, 250=31.22% lat (msec) : 500=2.15%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.13%, ctx=5171, 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=93.6KiB/s (95.8kB/s), 23.2KiB/s-23.8KiB/s (23.8kB/s-24.4kB/s), io=23.4MiB (24.6MB), run=254295-256585msec WRITE: bw=97.0KiB/s (100kB/s), 24.5KiB/s-24.8KiB/s (25.1kB/s-25.4kB/s), io=24.6MiB (25.7MB), run=254295-256585msec 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=143794: Mon Sep 14 06:56:23 2026 read: IOPS=13, BW=221KiB/s (226kB/s)(5920KiB/26810msec) clat (usec): min=33, max=144889, avg=34787.87, stdev=30950.42 lat (usec): min=33, max=144890, avg=34796.93, stdev=30960.02 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 54], 10.00th=[ 59], 20.00th=[ 69], | 30.00th=[ 3294], 40.00th=[ 27132], 50.00th=[ 32113], 60.00th=[ 39584], | 70.00th=[ 49546], 80.00th=[ 57934], 90.00th=[ 77071], 95.00th=[ 89654], | 99.00th=[130548], 99.50th=[137364], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 64, max= 440, per=25.14%, avg=215.23, stdev=89.34, samples=52 iops : min= 4, max= 27, avg=12.69, stdev= 5.62, samples=52 write: IOPS=14, BW=238KiB/s (243kB/s)(6368KiB/26810msec); 0 zone resets clat (usec): min=1369, max=236370, avg=34903.60, stdev=38045.69 lat (usec): min=1371, max=236373, avg=34909.39, stdev=38045.12 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1696], 10.00th=[ 1893], 20.00th=[ 4047], | 30.00th=[ 7570], 40.00th=[ 10945], 50.00th=[ 21103], 60.00th=[ 31589], | 70.00th=[ 47449], 80.00th=[ 62129], 90.00th=[ 92799], 95.00th=[112722], | 99.00th=[160433], 99.50th=[200279], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 63, max= 415, per=26.04%, avg=234.35, stdev=90.08, samples=52 iops : min= 3, max= 25, avg=13.90, stdev= 5.69, samples=52 lat (usec) : 50=1.82%, 100=11.07%, 250=0.91%, 500=0.26%, 750=0.13% lat (msec) : 2=5.47%, 4=5.08%, 10=8.98%, 20=7.94%, 50=29.56% lat (msec) : 100=23.44%, 250=5.34% cpu : usr=0.09%, sys=5.67%, ctx=1368, 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=143795: Mon Sep 14 06:56:23 2026 read: IOPS=13, BW=213KiB/s (218kB/s)(5744KiB/26937msec) clat (usec): min=32, max=226663, avg=38554.16, stdev=32231.42 lat (usec): min=32, max=226664, avg=38555.22, stdev=32231.43 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 61], 20.00th=[ 78], | 30.00th=[ 22676], 40.00th=[ 28967], 50.00th=[ 34341], 60.00th=[ 42730], | 70.00th=[ 51643], 80.00th=[ 66323], 90.00th=[ 83362], 95.00th=[ 92799], | 99.00th=[119014], 99.50th=[160433], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 49, max= 382, per=24.72%, avg=211.57, stdev=71.35, samples=53 iops : min= 3, max= 23, avg=12.47, stdev= 4.46, samples=53 write: IOPS=15, BW=243KiB/s (249kB/s)(6544KiB/26937msec); 0 zone resets clat (usec): min=1417, max=239746, avg=31938.08, stdev=34718.74 lat (usec): min=1419, max=239748, avg=31940.01, stdev=34718.89 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1696], 10.00th=[ 2180], 20.00th=[ 3720], | 30.00th=[ 6783], 40.00th=[ 10552], 50.00th=[ 19268], 60.00th=[ 29754], | 70.00th=[ 42730], 80.00th=[ 59507], 90.00th=[ 76022], 95.00th=[ 94897], | 99.00th=[132645], 99.50th=[200279], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 31, max= 541, per=26.93%, avg=242.38, stdev=105.68, samples=53 iops : min= 1, max= 33, avg=14.40, stdev= 6.65, samples=53 lat (usec) : 50=1.30%, 100=8.98%, 500=0.26%, 750=0.13%, 1000=0.26% lat (msec) : 2=5.08%, 4=6.51%, 10=9.64%, 20=7.68%, 50=32.16% lat (msec) : 100=24.22%, 250=3.78% cpu : usr=0.09%, sys=5.66%, ctx=1389, 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=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=143796: Mon Sep 14 06:56:23 2026 read: IOPS=14, BW=239KiB/s (244kB/s)(6256KiB/26205msec) clat (usec): min=35, max=192198, avg=35718.00, stdev=30364.60 lat (usec): min=35, max=192198, avg=35719.10, stdev=30364.71 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 60], 20.00th=[ 74], | 30.00th=[ 19268], 40.00th=[ 27132], 50.00th=[ 32113], 60.00th=[ 39584], | 70.00th=[ 50594], 80.00th=[ 59507], 90.00th=[ 74974], 95.00th=[ 87557], | 99.00th=[120062], 99.50th=[143655], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 49, max= 447, per=28.23%, avg=241.69, stdev=91.74, samples=51 iops : min= 3, max= 27, avg=14.37, stdev= 5.72, samples=51 write: IOPS=14, BW=230KiB/s (236kB/s)(6032KiB/26205msec); 0 zone resets clat (usec): min=1434, max=209994, avg=32402.91, stdev=37067.04 lat (usec): min=1441, max=209996, avg=32404.87, stdev=37067.15 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1713], 10.00th=[ 2606], 20.00th=[ 5014], | 30.00th=[ 7504], 40.00th=[ 11469], 50.00th=[ 16057], 60.00th=[ 27657], | 70.00th=[ 40633], 80.00th=[ 53216], 90.00th=[ 85459], 95.00th=[105382], | 99.00th=[173016], 99.50th=[196084], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 63, max= 510, per=25.44%, avg=228.92, stdev=95.13, samples=51 iops : min= 3, max= 31, avg=13.57, stdev= 6.03, samples=51 lat (usec) : 50=1.43%, 100=10.68%, 250=0.78%, 500=0.26%, 750=0.13% lat (msec) : 2=3.78%, 4=3.91%, 10=11.07%, 20=9.24%, 50=32.16% lat (msec) : 100=22.01%, 250=4.56% cpu : usr=0.07%, sys=5.53%, ctx=1343, 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=143798: Mon Sep 14 06:56:23 2026 read: IOPS=13, BW=216KiB/s (221kB/s)(6032KiB/27976msec) clat (usec): min=37, max=346875, avg=37630.80, stdev=37624.58 lat (usec): min=37, max=346876, avg=37636.02, stdev=37622.92 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 75], | 30.00th=[ 13042], 40.00th=[ 26608], 50.00th=[ 32637], 60.00th=[ 41681], | 70.00th=[ 50070], 80.00th=[ 63701], 90.00th=[ 78119], 95.00th=[ 99091], | 99.00th=[143655], 99.50th=[246416], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 94, max= 510, per=25.67%, avg=219.74, stdev=90.45, samples=54 iops : min= 5, max= 31, avg=12.98, stdev= 5.69, samples=54 write: IOPS=13, BW=224KiB/s (229kB/s)(6256KiB/27976msec); 0 zone resets clat (usec): min=1345, max=269760, avg=35169.52, stdev=36281.32 lat (usec): min=1347, max=269762, avg=35175.65, stdev=36281.04 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1696], 10.00th=[ 2769], 20.00th=[ 5342], | 30.00th=[ 8225], 40.00th=[ 13829], 50.00th=[ 22676], 60.00th=[ 33162], | 70.00th=[ 45876], 80.00th=[ 61604], 90.00th=[ 86508], 95.00th=[108528], | 99.00th=[149947], 99.50th=[160433], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 31, max= 411, per=24.90%, avg=224.09, stdev=84.63, samples=55 iops : min= 1, max= 25, avg=13.25, stdev= 5.37, samples=55 lat (usec) : 50=1.30%, 100=11.33%, 250=0.78%, 750=0.26%, 1000=0.39% lat (msec) : 2=3.39%, 4=3.65%, 10=11.20%, 20=8.46%, 50=30.34% lat (msec) : 100=22.92%, 250=5.73%, 500=0.26% cpu : usr=0.06%, sys=5.45%, ctx=1396, 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=856KiB/s (877kB/s), 213KiB/s-239KiB/s (218kB/s-244kB/s), io=23.4MiB (24.5MB), run=26205-27976msec WRITE: bw=901KiB/s (922kB/s), 224KiB/s-243KiB/s (229kB/s-249kB/s), io=24.6MiB (25.8MB), run=26205-27976msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143789: Mon Sep 14 06:57:03 2026 read: IOPS=5, BW=87.5KiB/s (89.6kB/s)(5920KiB/67632msec) clat (msec): min=5, max=245, avg=36.87, stdev=33.38 lat (msec): min=5, max=245, avg=36.87, stdev=33.38 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 54], 90.00th=[ 80], 95.00th=[ 99], | 99.00th=[ 184], 99.50th=[ 213], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 31, max= 382, per=27.32%, avg=95.08, stdev=58.01, samples=123 iops : min= 1, max= 23, avg= 5.20, stdev= 3.67, samples=123 write: IOPS=5, BW=94.2KiB/s (96.4kB/s)(6368KiB/67632msec); 0 zone resets clat (msec): min=35, max=449, avg=135.25, stdev=60.84 lat (msec): min=35, max=449, avg=135.25, stdev=60.84 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 66], 10.00th=[ 75], 20.00th=[ 90], | 30.00th=[ 100], 40.00th=[ 110], 50.00th=[ 120], 60.00th=[ 133], | 70.00th=[ 150], 80.00th=[ 174], 90.00th=[ 218], 95.00th=[ 255], | 99.00th=[ 351], 99.50th=[ 443], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 31, max= 192, per=25.60%, avg=93.71, stdev=39.10, samples=134 iops : min= 1, max= 12, avg= 5.11, stdev= 2.55, samples=134 lat (msec) : 10=1.82%, 20=14.45%, 50=21.88%, 100=24.09%, 250=34.77% lat (msec) : 500=2.99% cpu : usr=0.03%, sys=1.17%, ctx=1313, 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=143790: Mon Sep 14 06:57:03 2026 read: IOPS=5, BW=83.6KiB/s (85.6kB/s)(5744KiB/68682msec) clat (msec): min=6, max=284, avg=38.48, stdev=38.43 lat (msec): min=6, max=284, avg=38.48, stdev=38.43 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 39], 80.00th=[ 52], 90.00th=[ 88], 95.00th=[ 127], | 99.00th=[ 220], 99.50th=[ 247], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 352, per=27.64%, avg=96.19, stdev=63.52, samples=118 iops : min= 1, max= 22, avg= 5.27, stdev= 4.06, samples=118 write: IOPS=5, BW=95.3KiB/s (97.6kB/s)(6544KiB/68682msec); 0 zone resets clat (msec): min=42, max=493, avg=133.94, stdev=58.06 lat (msec): min=42, max=493, avg=133.94, stdev=58.06 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 88], | 30.00th=[ 101], 40.00th=[ 113], 50.00th=[ 124], 60.00th=[ 133], | 70.00th=[ 148], 80.00th=[ 167], 90.00th=[ 207], 95.00th=[ 247], | 99.00th=[ 330], 99.50th=[ 368], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 30, max= 191, per=26.25%, avg=96.06, stdev=40.57, samples=134 iops : min= 1, max= 11, avg= 5.26, stdev= 2.56, samples=134 lat (msec) : 10=2.21%, 20=14.97%, 50=20.57%, 100=21.74%, 250=37.89% lat (msec) : 500=2.60% cpu : usr=0.04%, sys=1.15%, ctx=1269, 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=143791: Mon Sep 14 06:57:03 2026 read: IOPS=5, BW=93.6KiB/s (95.9kB/s)(6256KiB/66808msec) clat (msec): min=6, max=312, avg=38.08, stdev=36.09 lat (msec): min=6, max=312, avg=38.08, stdev=36.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 55], 90.00th=[ 81], 95.00th=[ 107], | 99.00th=[ 188], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 313, per=29.36%, avg=102.18, stdev=64.13, samples=121 iops : min= 1, max= 19, avg= 5.66, stdev= 4.02, samples=121 write: IOPS=5, BW=90.3KiB/s (92.5kB/s)(6032KiB/66808msec); 0 zone resets clat (msec): min=42, max=346, avg=137.31, stdev=54.84 lat (msec): min=42, max=346, avg=137.32, stdev=54.84 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 70], 10.00th=[ 78], 20.00th=[ 93], | 30.00th=[ 105], 40.00th=[ 115], 50.00th=[ 127], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 180], 90.00th=[ 215], 95.00th=[ 243], | 99.00th=[ 309], 99.50th=[ 342], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 30, max= 190, per=24.92%, avg=91.22, stdev=35.96, samples=130 iops : min= 1, max= 11, avg= 4.96, stdev= 2.34, samples=130 lat (msec) : 10=1.17%, 20=16.41%, 50=22.40%, 100=20.31%, 250=37.24% lat (msec) : 500=2.47% cpu : usr=0.03%, sys=1.12%, ctx=1253, 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=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=143792: Mon Sep 14 06:57:03 2026 read: IOPS=5, BW=89.0KiB/s (91.2kB/s)(6032KiB/67738msec) clat (msec): min=7, max=298, avg=39.51, stdev=43.74 lat (msec): min=7, max=298, avg=39.51, stdev=43.74 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 48], 90.00th=[ 78], 95.00th=[ 140], | 99.00th=[ 249], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 318, per=28.32%, avg=98.56, stdev=61.00, samples=119 iops : min= 1, max= 19, avg= 5.44, stdev= 3.81, samples=119 write: IOPS=5, BW=92.4KiB/s (94.6kB/s)(6256KiB/67738msec); 0 zone resets clat (msec): min=44, max=403, avg=134.74, stdev=54.67 lat (msec): min=44, max=403, avg=134.75, stdev=54.67 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 93], | 30.00th=[ 102], 40.00th=[ 112], 50.00th=[ 125], 60.00th=[ 138], | 70.00th=[ 153], 80.00th=[ 176], 90.00th=[ 207], 95.00th=[ 241], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 30, max= 192, per=25.12%, avg=91.94, stdev=36.76, samples=133 iops : min= 1, max= 12, avg= 5.02, stdev= 2.36, samples=133 lat (msec) : 10=1.56%, 20=16.02%, 50=22.79%, 100=20.18%, 250=37.11% lat (msec) : 500=2.34% cpu : usr=0.03%, sys=1.14%, ctx=1230, 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=349KiB/s (357kB/s), 83.6KiB/s-93.6KiB/s (85.6kB/s-95.9kB/s), io=23.4MiB (24.5MB), run=66808-68682msec WRITE: bw=367KiB/s (376kB/s), 90.3KiB/s-95.3KiB/s (92.5kB/s-97.6kB/s), io=24.6MiB (25.8MB), run=66808-68682msec 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=143814: Mon Sep 14 06:57:20 2026 read: IOPS=2, BW=2725KiB/s (2791kB/s)(7168KiB/2630msec) clat (msec): min=58, max=243, avg=173.39, stdev=65.39 lat (msec): min=58, max=243, avg=173.39, stdev=65.39 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 161], 60.00th=[ 213], | 70.00th=[ 213], 80.00th=[ 241], 90.00th=[ 245], 95.00th=[ 245], | 99.00th=[ 245], 99.50th=[ 245], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 1855, max= 4055, per=68.23%, avg=2933.25, stdev=1150.72, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1947KiB/s (1993kB/s)(5120KiB/2630msec); 0 zone resets clat (msec): min=175, max=356, avg=256.76, stdev=76.67 lat (msec): min=175, max=356, avg=256.82, stdev=76.68 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 359], 95.00th=[ 359], | 99.00th=[ 359], 99.50th=[ 359], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 2031, max= 4055, per=55.68%, avg=3351.33, stdev=1144.27, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=75.00%, 500=16.67% cpu : usr=0.04%, sys=19.17%, ctx=227, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143815: Mon Sep 14 06:57:20 2026 read: IOPS=0, BW=430KiB/s (440kB/s)(2048KiB/4763msec) clat (usec): min=1671, max=295861, avg=148766.37, stdev=208024.14 lat (usec): min=1672, max=295864, avg=148768.11, stdev=208025.23 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1663], 10.00th=[ 1663], 20.00th=[ 1663], | 30.00th=[ 1663], 40.00th=[ 1663], 50.00th=[ 1663], 60.00th=[295699], | 70.00th=[295699], 80.00th=[295699], 90.00th=[295699], 95.00th=[295699], | 99.00th=[295699], 99.50th=[295699], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 1896, max= 2031, per=45.67%, avg=1963.50, stdev=95.46, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2150KiB/s (2202kB/s)(10.0MiB/4763msec); 0 zone resets clat (msec): min=114, max=1593, avg=403.24, stdev=433.16 lat (msec): min=114, max=1593, avg=403.33, stdev=433.16 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 120], | 30.00th=[ 124], 40.00th=[ 275], 50.00th=[ 330], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 368], 90.00th=[ 409], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 1896, max= 6095, per=49.80%, avg=2997.67, stdev=1720.99, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 2=8.33%, 250=25.00%, 500=58.33%, 2000=8.33% cpu : usr=0.00%, sys=10.44%, ctx=234, 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=143817: Mon Sep 14 06:57:20 2026 read: IOPS=1, BW=1660KiB/s (1700kB/s)(6144KiB/3701msec) clat (usec): min=452, max=590994, avg=263217.20, stdev=254896.54 lat (usec): min=453, max=590996, avg=263218.47, stdev=254896.59 clat percentiles (usec): | 1.00th=[ 453], 5.00th=[ 453], 10.00th=[ 453], 20.00th=[ 469], | 30.00th=[ 469], 40.00th=[212861], 50.00th=[212861], 60.00th=[235930], | 70.00th=[541066], 80.00th=[541066], 90.00th=[591397], 95.00th=[591397], | 99.00th=[591397], 99.50th=[591397], 99.90th=[591397], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 2035, max= 4063, per=78.72%, avg=3384.33, stdev=1168.56, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1660KiB/s (1700kB/s)(6144KiB/3701msec); 0 zone resets clat (msec): min=193, max=639, avg=346.31, stdev=194.45 lat (msec): min=194, max=640, avg=346.47, stdev=194.39 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 300], | 70.00th=[ 542], 80.00th=[ 542], 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= 1896, max= 4071, per=48.72%, avg=2932.25, stdev=1152.54, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 500=16.67% lat (msec) : 250=41.67%, 500=8.33%, 750=33.33% cpu : usr=0.03%, sys=11.89%, ctx=142, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143818: Mon Sep 14 06:57:20 2026 read: IOPS=1, BW=1099KiB/s (1125kB/s)(5120KiB/4660msec) clat (usec): min=352, max=280604, avg=104094.38, stdev=142616.91 lat (usec): min=353, max=280605, avg=104095.42, stdev=142617.17 clat percentiles (usec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 396], 40.00th=[ 396], 50.00th=[ 799], 60.00th=[ 799], | 70.00th=[238027], 80.00th=[238027], 90.00th=[278922], 95.00th=[278922], | 99.00th=[278922], 99.50th=[278922], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 1984, max= 6095, per=93.96%, avg=4039.50, stdev=2906.92, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1538KiB/s (1575kB/s)(7168KiB/4660msec); 0 zone resets clat (msec): min=99, max=1350, avg=528.56, stdev=420.35 lat (msec): min=99, max=1350, avg=528.64, stdev=420.37 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 190], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 542], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 667], 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= 1896, max= 2035, per=33.03%, avg=1988.33, stdev=50.39, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 500=16.67%, 1000=8.33% lat (msec) : 100=8.33%, 250=16.67%, 500=16.67%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=8.74%, ctx=149, 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=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=4300KiB/s (4403kB/s), 430KiB/s-2725KiB/s (440kB/s-2791kB/s), io=20.0MiB (20.0MB), run=2630-4763msec WRITE: bw=6020KiB/s (6164kB/s), 1538KiB/s-2150KiB/s (1575kB/s-2202kB/s), io=28.0MiB (29.4MB), run=2630-4763msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143819: Mon Sep 14 06:57:20 2026 read: IOPS=1, BW=1567KiB/s (1605kB/s)(7168KiB/4573msec) clat (msec): min=124, max=663, avg=307.25, stdev=238.09 lat (msec): min=124, max=663, avg=307.25, stdev=238.09 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 127], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 180], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 634], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1408, max= 2039, per=49.72%, avg=1922.67, stdev=252.64, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 write: IOPS=1, BW=1120KiB/s (1146kB/s)(5120KiB/4573msec); 0 zone resets clat (msec): min=217, max=651, avg=421.94, stdev=208.67 lat (msec): min=217, max=652, avg=422.04, stdev=208.69 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 243], 40.00th=[ 243], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 2023, max= 2048, per=37.65%, avg=2038.25, stdev=10.81, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=50.00%, 500=16.67%, 750=33.33% cpu : usr=0.00%, sys=4.33%, ctx=92, 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=143820: Mon Sep 14 06:57:20 2026 read: IOPS=0, BW=387KiB/s (396kB/s)(2048KiB/5296msec) clat (msec): min=54, max=351, avg=203.01, stdev=210.33 lat (msec): min=54, max=351, avg=203.01, stdev=210.33 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 55], | 30.00th=[ 55], 40.00th=[ 55], 50.00th=[ 55], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2027, max= 2035, per=52.52%, avg=2031.00, stdev= 5.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1934KiB/s (1980kB/s)(10.0MiB/5296msec); 0 zone resets clat (msec): min=166, max=1152, avg=450.43, stdev=365.39 lat (msec): min=167, max=1152, avg=450.62, stdev=365.29 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 169], | 30.00th=[ 188], 40.00th=[ 268], 50.00th=[ 275], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 481], 90.00th=[ 1083], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 2007, max= 4096, per=50.02%, avg=2707.83, stdev=1059.51, samples=6 iops : min= 1, max= 4, avg= 1.83, stdev= 1.33, samples=6 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 2000=16.67% cpu : usr=0.04%, sys=4.06%, ctx=95, 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=143821: Mon Sep 14 06:57:20 2026 read: IOPS=1, BW=1308KiB/s (1339kB/s)(6144KiB/4697msec) clat (msec): min=70, max=1188, avg=316.18, stdev=433.38 lat (msec): min=70, max=1188, avg=316.18, stdev=433.38 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 85], | 30.00th=[ 85], 40.00th=[ 127], 50.00th=[ 127], 60.00th=[ 157], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1996, max= 4047, per=69.60%, avg=2691.33, stdev=1174.17, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1308KiB/s (1339kB/s)(6144KiB/4697msec); 0 zone resets clat (msec): min=233, max=835, avg=410.17, stdev=227.26 lat (msec): min=233, max=835, avg=410.25, stdev=227.25 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 435], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1996, max= 4079, per=46.78%, avg=2532.25, stdev=1031.28, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.30%, 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=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=143822: Mon Sep 14 06:57:20 2026 read: IOPS=1, BW=1237KiB/s (1267kB/s)(5120KiB/4138msec) clat (msec): min=64, max=107, avg=89.03, stdev=16.05 lat (msec): min=64, max=107, avg=89.03, stdev=16.05 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 65], | 30.00th=[ 85], 40.00th=[ 85], 50.00th=[ 91], 60.00th=[ 91], | 70.00th=[ 97], 80.00th=[ 97], 90.00th=[ 108], 95.00th=[ 108], | 99.00th=[ 108], 99.50th=[ 108], 99.90th=[ 108], 99.95th=[ 108], | 99.99th=[ 108] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1732KiB/s (1774kB/s)(7168KiB/4138msec); 0 zone resets clat (msec): min=249, max=916, avg=508.31, stdev=256.74 lat (msec): min=249, max=916, avg=508.39, stdev=256.74 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 292], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 380], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 793], 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= 2027, max= 2048, per=37.57%, avg=2033.83, stdev= 7.81, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 100=33.33%, 250=16.67%, 500=25.00%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=3.72%, ctx=54, 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=3867KiB/s (3960kB/s), 387KiB/s-1567KiB/s (396kB/s-1605kB/s), io=20.0MiB (20.0MB), run=4138-5296msec WRITE: bw=5414KiB/s (5544kB/s), 1120KiB/s-1934KiB/s (1146kB/s-1980kB/s), io=28.0MiB (29.4MB), run=4138-5296msec 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=143829: Mon Sep 14 06:57:38 2026 read: IOPS=0, BW=3724KiB/s (3813kB/s)(12.0MiB/3300msec) clat (msec): min=960, max=1192, avg=1089.71, stdev=118.05 lat (msec): min=960, max=1192, avg=1089.71, stdev=118.05 clat percentiles (msec): | 1.00th=[ 961], 5.00th=[ 961], 10.00th=[ 961], 20.00th=[ 961], | 30.00th=[ 961], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=8.31%, ctx=213, 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=143830: Mon Sep 14 06:57:38 2026 read: IOPS=0, BW=1551KiB/s (1588kB/s)(4096KiB/2641msec) clat (nsec): min=1193.9M, max=1193.9M, avg=1193900951.00, stdev= 0.00 lat (nsec): min=1193.9M, max=1193.9M, avg=1193903350.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1200], 5.00th=[ 1200], 10.00th=[ 1200], 20.00th=[ 1200], | 30.00th=[ 1200], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 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=3102KiB/s (3176kB/s)(8192KiB/2641msec); 0 zone resets clat (msec): min=364, max=915, avg=639.53, stdev=389.59 lat (msec): min=368, max=915, avg=641.71, stdev=386.97 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 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= 8175, max= 8175, per=97.90%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.08%, sys=7.42%, ctx=145, 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=143831: Mon Sep 14 06:57:38 2026 write: IOPS=0, BW=3131KiB/s (3207kB/s)(12.0MiB/3924msec); 0 zone resets clat (msec): min=709, max=1554, avg=1236.44, stdev=459.45 lat (msec): min=709, max=1554, avg=1238.97, stdev=461.00 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 8078, max= 8175, per=97.32%, avg=8126.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.03%, sys=4.87%, ctx=89, 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=143832: Mon Sep 14 06:57:38 2026 write: IOPS=0, BW=3591KiB/s (3677kB/s)(12.0MiB/3422msec); 0 zone resets clat (msec): min=467, max=2298, avg=1100.53, stdev=1037.87 lat (msec): min=470, max=2298, avg=1101.76, stdev=1037.24 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 2299], 80.00th=[ 2299], 90.00th=[ 2299], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 5885, max= 8126, per=83.90%, avg=7005.50, stdev=1584.63, 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=0.03%, sys=3.13%, ctx=105, 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=4965KiB/s (5084kB/s), 1551KiB/s-3724KiB/s (1588kB/s-3813kB/s), io=16.0MiB (16.8MB), run=2641-3300msec WRITE: bw=8351KiB/s (8551kB/s), 3102KiB/s-3591KiB/s (3176kB/s-3677kB/s), io=32.0MiB (33.6MB), run=2641-3924msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143834: Mon Sep 14 06:57:39 2026 read: IOPS=0, BW=2908KiB/s (2978kB/s)(12.0MiB/4225msec) clat (msec): min=234, max=2213, avg=1405.09, stdev=1038.09 lat (msec): min=234, max=2213, avg=1405.09, stdev=1038.09 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 1770], 50.00th=[ 1770], 60.00th=[ 1770], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] 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%, 2000=33.33%, >=2000=33.33% cpu : usr=0.05%, sys=1.68%, ctx=28, 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=143835: Mon Sep 14 06:57:39 2026 read: IOPS=0, BW=1074KiB/s (1099kB/s)(4096KiB/3815msec) clat (nsec): min=1203.8M, max=1203.8M, avg=1203809512.00, stdev= 0.00 lat (nsec): min=1203.8M, max=1203.8M, avg=1203811432.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1200], 5.00th=[ 1200], 10.00th=[ 1200], 20.00th=[ 1200], | 30.00th=[ 1200], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2147KiB/s (2199kB/s)(8192KiB/3815msec); 0 zone resets clat (msec): min=717, max=1880, avg=1298.85, stdev=822.39 lat (msec): min=717, max=1890, avg=1304.31, stdev=829.69 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 1888], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 8192, max= 8192, per=95.38%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.21%, sys=2.15%, ctx=36, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143836: Mon Sep 14 06:57:39 2026 write: IOPS=0, BW=3294KiB/s (3373kB/s)(12.0MiB/3730msec); 0 zone resets clat (msec): min=430, max=1804, avg=1241.58, stdev=720.07 lat (msec): min=430, max=1805, avg=1241.91, stdev=720.09 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 430], 10.00th=[ 430], 20.00th=[ 430], | 30.00th=[ 430], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 1804], 80.00th=[ 1804], 90.00th=[ 1804], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 8192, max= 8192, per=95.38%, 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%, 2000=66.67% cpu : usr=0.00%, sys=2.71%, ctx=33, 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=143837: Mon Sep 14 06:57:39 2026 write: IOPS=0, BW=4046KiB/s (4143kB/s)(12.0MiB/3037msec); 0 zone resets clat (msec): min=224, max=2370, avg=1005.55, stdev=1186.51 lat (msec): min=225, max=2371, avg=1006.12, stdev=1186.32 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7275, max= 7275, per=84.70%, avg=7275.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.51%, ctx=47, 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=3878KiB/s (3971kB/s), 1074KiB/s-2908KiB/s (1099kB/s-2978kB/s), io=16.0MiB (16.8MB), run=3815-4225msec WRITE: bw=8589KiB/s (8795kB/s), 2147KiB/s-4046KiB/s (2199kB/s-4143kB/s), io=32.0MiB (33.6MB), run=3037-3815msec