== sanity test 398b: DIO and buffer IO race ============== 01:48:20 (1788760100) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.60197 s, 7.6 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=179646: Mon Sep 7 01:50:59 2026 read: IOPS=11, BW=44.8KiB/s (45.8kB/s)(5992KiB/133864msec) clat (usec): min=35, max=1253.9k, avg=49747.95, stdev=44769.23 lat (usec): min=35, max=1253.9k, avg=49751.69, stdev=44769.84 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 9765], 10.00th=[ 17695], | 20.00th=[ 24249], 30.00th=[ 30278], 40.00th=[ 35914], | 50.00th=[ 42730], 60.00th=[ 49021], 70.00th=[ 58983], | 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[ 110625], | 99.00th=[ 162530], 99.50th=[ 187696], 99.90th=[ 254804], | 99.95th=[1249903], 99.99th=[1249903] bw ( KiB/s): min= 7, max= 102, per=25.57%, avg=44.75, stdev=17.36, samples=261 iops : min= 1, max= 25, avg=10.54, stdev= 4.39, samples=261 write: IOPS=11, BW=47.0KiB/s (48.2kB/s)(6296KiB/133864msec); 0 zone resets clat (usec): min=890, max=253058, avg=37358.55, stdev=39779.25 lat (usec): min=891, max=253060, avg=37362.45, stdev=39778.45 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1254], 10.00th=[ 1647], 20.00th=[ 3752], | 30.00th=[ 7635], 40.00th=[ 16712], 50.00th=[ 25822], 60.00th=[ 35390], | 70.00th=[ 47973], 80.00th=[ 65274], 90.00th=[ 91751], 95.00th=[115868], | 99.00th=[177210], 99.50th=[202376], 99.90th=[240124], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 7, max= 151, per=25.67%, avg=46.98, stdev=21.94, samples=261 iops : min= 1, max= 37, avg=11.11, stdev= 5.50, samples=261 lat (usec) : 50=0.13%, 100=1.89%, 250=0.16%, 500=0.03%, 1000=0.03% lat (msec) : 2=6.22%, 4=4.62%, 10=6.61%, 20=8.98%, 50=37.57% lat (msec) : 100=26.43%, 250=7.23%, 500=0.07%, 2000=0.03% cpu : usr=0.08%, sys=4.96%, ctx=6367, 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=179647: Mon Sep 7 01:50:59 2026 read: IOPS=10, BW=43.9KiB/s (44.0kB/s)(5940KiB/135262msec) clat (usec): min=42, max=364658, avg=49362.00, stdev=34734.07 lat (usec): min=42, max=364660, avg=49365.23, stdev=34734.41 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 12125], 10.00th=[ 18220], 20.00th=[ 24511], | 30.00th=[ 29754], 40.00th=[ 34866], 50.00th=[ 41681], 60.00th=[ 49021], | 70.00th=[ 58459], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[105382], | 99.00th=[177210], 99.50th=[214959], 99.90th=[287310], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 95, per=24.92%, avg=43.60, stdev=18.14, samples=265 iops : min= 1, max= 23, avg=10.24, stdev= 4.57, samples=265 write: IOPS=11, BW=46.9KiB/s (48.1kB/s)(6348KiB/135262msec); 0 zone resets clat (usec): min=1011, max=1223.3k, avg=38745.45, stdev=49569.67 lat (usec): min=1012, max=1223.3k, avg=38751.28, stdev=49569.03 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1270], 10.00th=[ 1778], | 20.00th=[ 4178], 30.00th=[ 7898], 40.00th=[ 17433], | 50.00th=[ 27657], 60.00th=[ 36439], 70.00th=[ 48497], | 80.00th=[ 66323], 90.00th=[ 92799], 95.00th=[ 116917], | 99.00th=[ 170918], 99.50th=[ 206570], 99.90th=[ 283116], | 99.95th=[1216349], 99.99th=[1216349] bw ( KiB/s): min= 7, max= 111, per=25.42%, avg=46.52, stdev=20.37, samples=265 iops : min= 1, max= 27, avg=10.98, stdev= 5.12, samples=265 lat (usec) : 50=0.20%, 100=1.63%, 250=0.03%, 500=0.07%, 750=0.03% lat (msec) : 2=5.70%, 4=4.39%, 10=7.36%, 20=8.72%, 50=38.28% lat (msec) : 100=26.37%, 250=7.00%, 500=0.20%, 2000=0.03% cpu : usr=0.09%, sys=4.88%, ctx=6501, 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=179648: Mon Sep 7 01:50:59 2026 read: IOPS=11, BW=45.4KiB/s (46.4kB/s)(6028KiB/132915msec) clat (usec): min=44, max=298172, avg=46871.35, stdev=32929.73 lat (usec): min=45, max=298173, avg=46876.21, stdev=32929.45 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 135], 10.00th=[ 16450], 20.00th=[ 22938], | 30.00th=[ 28181], 40.00th=[ 33817], 50.00th=[ 40633], 60.00th=[ 46400], | 70.00th=[ 55313], 80.00th=[ 67634], 90.00th=[ 85459], 95.00th=[106431], | 99.00th=[170918], 99.50th=[185598], 99.90th=[229639], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 111, per=26.11%, avg=45.69, stdev=19.95, samples=258 iops : min= 1, max= 27, avg=10.76, stdev= 5.02, samples=258 write: IOPS=11, BW=47.1KiB/s (48.2kB/s)(6260KiB/132915msec); 0 zone resets clat (usec): min=975, max=1371.3k, avg=39488.13, stdev=52960.56 lat (usec): min=976, max=1371.3k, avg=39490.16, stdev=52960.51 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1270], 10.00th=[ 1745], | 20.00th=[ 3916], 30.00th=[ 8160], 40.00th=[ 16450], | 50.00th=[ 25822], 60.00th=[ 35914], 70.00th=[ 50594], | 80.00th=[ 67634], 90.00th=[ 95945], 95.00th=[ 119014], | 99.00th=[ 177210], 99.50th=[ 217056], 99.90th=[ 258999], | 99.95th=[1367344], 99.99th=[1367344] bw ( KiB/s): min= 7, max= 132, per=25.69%, avg=47.02, stdev=20.43, samples=260 iops : min= 1, max= 33, avg=11.10, stdev= 5.12, samples=260 lat (usec) : 50=0.10%, 100=2.15%, 250=0.36%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.99%, 4=4.33%, 10=6.71%, 20=9.64%, 50=37.53% lat (msec) : 100=25.39%, 250=7.52%, 500=0.10%, 2000=0.03% cpu : usr=0.07%, sys=5.02%, ctx=6472, 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=179649: Mon Sep 7 01:50:59 2026 read: IOPS=11, BW=44.2KiB/s (45.3kB/s)(6052KiB/136887msec) clat (usec): min=42, max=322362, avg=48810.45, stdev=33098.94 lat (usec): min=42, max=322364, avg=48830.25, stdev=33101.77 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 3785], 10.00th=[ 16909], 20.00th=[ 23725], | 30.00th=[ 29230], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 50594], | 70.00th=[ 58983], 80.00th=[ 70779], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[158335], 99.50th=[189793], 99.90th=[316670], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 7, max= 96, per=25.40%, avg=44.45, stdev=17.71, samples=264 iops : min= 1, max= 24, avg=10.46, stdev= 4.46, samples=264 write: IOPS=11, BW=45.6KiB/s (46.6kB/s)(6236KiB/136887msec); 0 zone resets clat (usec): min=1003, max=1405.3k, avg=40122.87, stdev=53982.67 lat (usec): min=1004, max=1405.3k, avg=40125.38, stdev=53982.30 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1237], 10.00th=[ 1696], | 20.00th=[ 3851], 30.00th=[ 7242], 40.00th=[ 16319], | 50.00th=[ 27919], 60.00th=[ 39060], 70.00th=[ 50594], | 80.00th=[ 66847], 90.00th=[ 99091], 95.00th=[ 122160], | 99.00th=[ 179307], 99.50th=[ 200279], 99.90th=[ 287310], | 99.95th=[1400898], 99.99th=[1400898] bw ( KiB/s): min= 7, max= 128, per=24.95%, avg=45.66, stdev=20.52, samples=265 iops : min= 1, max= 32, avg=10.77, stdev= 5.19, samples=265 lat (usec) : 50=0.13%, 100=1.79%, 250=0.26%, 500=0.16%, 750=0.07% lat (msec) : 2=5.83%, 4=4.79%, 10=7.16%, 20=8.14%, 50=36.13% lat (msec) : 100=27.28%, 250=8.11%, 500=0.13%, 2000=0.03% cpu : usr=0.09%, sys=5.06%, ctx=6707, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=175KiB/s (180kB/s), 43.9KiB/s-45.4KiB/s (44.0kB/s-46.4kB/s), io=23.4MiB (24.6MB), run=132915-136887msec WRITE: bw=184KiB/s (188kB/s), 45.6KiB/s-47.1KiB/s (46.6kB/s-48.2kB/s), io=24.6MiB (25.7MB), run=132915-136887msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179642: Mon Sep 7 01:51:47 2026 read: IOPS=8, BW=32.5KiB/s (33.2kB/s)(5992KiB/184541msec) clat (msec): min=5, max=1245, avg=48.05, stdev=52.77 lat (msec): min=5, max=1245, avg=48.05, stdev=52.77 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 51], 80.00th=[ 69], 90.00th=[ 103], 95.00th=[ 140], | 99.00th=[ 218], 99.50th=[ 239], 99.90th=[ 330], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 132, per=25.55%, avg=32.96, stdev=22.41, samples=352 iops : min= 1, max= 33, avg= 7.57, stdev= 5.64, samples=352 write: IOPS=8, BW=34.1KiB/s (34.9kB/s)(6296KiB/184541msec); 0 zone resets clat (msec): min=11, max=333, avg=71.23, stdev=49.57 lat (msec): min=11, max=333, avg=71.24, stdev=49.57 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 67], | 70.00th=[ 83], 80.00th=[ 105], 90.00th=[ 142], 95.00th=[ 176], | 99.00th=[ 253], 99.50th=[ 264], 99.90th=[ 313], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 111, per=25.25%, avg=34.08, stdev=21.71, samples=358 iops : min= 1, max= 27, avg= 7.84, stdev= 5.45, samples=358 lat (msec) : 10=1.46%, 20=11.65%, 50=44.24%, 100=26.17%, 250=15.63% lat (msec) : 500=0.81%, 2000=0.03% cpu : usr=0.05%, sys=1.74%, ctx=4985, 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=179643: Mon Sep 7 01:51:47 2026 read: IOPS=8, BW=32.2KiB/s (32.0kB/s)(5940KiB/184384msec) clat (msec): min=5, max=1374, avg=46.86, stdev=54.05 lat (msec): min=5, max=1374, avg=46.86, stdev=54.05 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 49], 80.00th=[ 69], 90.00th=[ 102], 95.00th=[ 136], | 99.00th=[ 215], 99.50th=[ 241], 99.90th=[ 326], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7, max= 120, per=25.90%, avg=33.42, stdev=23.18, samples=345 iops : min= 1, max= 30, avg= 7.68, stdev= 5.83, samples=345 write: IOPS=8, BW=34.4KiB/s (35.3kB/s)(6348KiB/184384msec); 0 zone resets clat (msec): min=9, max=400, avg=72.04, stdev=50.86 lat (msec): min=9, max=400, avg=72.04, stdev=50.86 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 65], | 70.00th=[ 84], 80.00th=[ 109], 90.00th=[ 140], 95.00th=[ 169], | 99.00th=[ 259], 99.50th=[ 284], 99.90th=[ 347], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 111, per=25.57%, avg=34.52, stdev=21.18, samples=357 iops : min= 1, max= 27, avg= 7.96, stdev= 5.32, samples=357 lat (msec) : 10=1.60%, 20=11.75%, 50=45.08%, 100=24.80%, 250=16.08% lat (msec) : 500=0.65%, 2000=0.03% cpu : usr=0.06%, sys=1.74%, ctx=4847, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179644: Mon Sep 7 01:51:47 2026 read: IOPS=8, BW=32.5KiB/s (33.3kB/s)(6028KiB/185206msec) clat (msec): min=5, max=349, avg=48.57, stdev=45.29 lat (msec): min=5, max=349, avg=48.57, stdev=45.29 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 51], 80.00th=[ 69], 90.00th=[ 103], 95.00th=[ 148], | 99.00th=[ 234], 99.50th=[ 262], 99.90th=[ 330], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 119, per=25.49%, avg=32.89, stdev=22.42, samples=354 iops : min= 1, max= 29, avg= 7.55, stdev= 5.63, samples=354 write: IOPS=8, BW=33.8KiB/s (34.6kB/s)(6260KiB/185206msec); 0 zone resets clat (msec): min=11, max=1403, avg=71.31, stdev=60.20 lat (msec): min=11, max=1403, avg=71.31, stdev=60.20 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 65], | 70.00th=[ 81], 80.00th=[ 102], 90.00th=[ 136], 95.00th=[ 167], | 99.00th=[ 259], 99.50th=[ 338], 99.90th=[ 472], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 103, per=25.02%, avg=33.77, stdev=20.92, samples=358 iops : min= 1, max= 25, avg= 7.76, stdev= 5.26, samples=358 lat (msec) : 10=1.17%, 20=12.27%, 50=43.42%, 100=27.47%, 250=14.84% lat (msec) : 500=0.78%, 2000=0.03% cpu : usr=0.06%, sys=1.69%, ctx=4883, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179645: Mon Sep 7 01:51:47 2026 read: IOPS=8, BW=32.9KiB/s (33.6kB/s)(6052KiB/184210msec) clat (msec): min=6, max=347, avg=48.27, stdev=44.28 lat (msec): min=6, max=347, avg=48.28, stdev=44.27 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 41], | 70.00th=[ 50], 80.00th=[ 71], 90.00th=[ 108], 95.00th=[ 138], | 99.00th=[ 211], 99.50th=[ 275], 99.90th=[ 342], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 7, max= 159, per=26.20%, avg=33.80, stdev=23.37, samples=347 iops : min= 1, max= 39, avg= 7.77, stdev= 5.87, samples=347 write: IOPS=8, BW=33.9KiB/s (34.7kB/s)(6236KiB/184210msec); 0 zone resets clat (msec): min=12, max=1396, avg=71.02, stdev=59.00 lat (msec): min=12, max=1396, avg=71.03, stdev=59.00 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 66], | 70.00th=[ 81], 80.00th=[ 102], 90.00th=[ 140], 95.00th=[ 165], | 99.00th=[ 245], 99.50th=[ 292], 99.90th=[ 472], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 112, per=25.14%, avg=33.94, stdev=21.30, samples=356 iops : min= 1, max= 28, avg= 7.80, stdev= 5.35, samples=356 lat (msec) : 10=1.07%, 20=10.87%, 50=45.21%, 100=26.86%, 250=15.20% lat (msec) : 500=0.75%, 2000=0.03% cpu : usr=0.07%, sys=1.74%, ctx=4938, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=130KiB/s (133kB/s), 32.2KiB/s-32.9KiB/s (32.0kB/s-33.6kB/s), io=23.4MiB (24.6MB), run=184210-185206msec WRITE: bw=136KiB/s (139kB/s), 33.8KiB/s-34.4KiB/s (34.6kB/s-35.3kB/s), io=24.6MiB (25.7MB), run=184210-185206msec 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=179691: Mon Sep 7 01:52:35 2026 read: IOPS=10, BW=171KiB/s (175kB/s)(5920KiB/34596msec) clat (usec): min=35, max=358312, avg=52843.70, stdev=39301.35 lat (usec): min=35, max=358314, avg=52845.39, stdev=39301.62 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 14877], 20.00th=[ 27132], | 30.00th=[ 33817], 40.00th=[ 39584], 50.00th=[ 46400], 60.00th=[ 51643], | 70.00th=[ 61604], 80.00th=[ 73925], 90.00th=[ 92799], 95.00th=[117965], | 99.00th=[189793], 99.50th=[225444], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 31, max= 285, per=25.47%, avg=167.84, stdev=64.27, samples=67 iops : min= 1, max= 17, avg= 9.75, stdev= 4.05, samples=67 write: IOPS=11, BW=184KiB/s (188kB/s)(6368KiB/34596msec); 0 zone resets clat (usec): min=1619, max=187787, avg=37186.64, stdev=38760.75 lat (usec): min=1622, max=187790, avg=37189.05, stdev=38760.78 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1991], 10.00th=[ 2933], 20.00th=[ 5342], | 30.00th=[ 8225], 40.00th=[ 14091], 50.00th=[ 25035], 60.00th=[ 34341], | 70.00th=[ 46400], 80.00th=[ 62653], 90.00th=[ 98042], 95.00th=[120062], | 99.00th=[162530], 99.50th=[173016], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 31, max= 412, per=26.36%, avg=182.70, stdev=83.22, samples=67 iops : min= 1, max= 25, avg=10.67, stdev= 5.25, samples=67 lat (usec) : 50=0.26%, 100=4.04%, 250=0.13% lat (msec) : 2=2.60%, 4=4.43%, 10=10.29%, 20=8.72%, 50=33.72% lat (msec) : 100=27.08%, 250=8.59%, 500=0.13% cpu : usr=0.09%, sys=5.61%, ctx=1640, 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=179692: Mon Sep 7 01:52:35 2026 read: IOPS=10, BW=165KiB/s (169kB/s)(5744KiB/34847msec) clat (usec): min=51, max=221372, avg=50637.70, stdev=34389.27 lat (usec): min=53, max=221373, avg=50639.13, stdev=34389.19 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 69], 10.00th=[ 1942], 20.00th=[ 23725], | 30.00th=[ 30540], 40.00th=[ 38011], 50.00th=[ 44827], 60.00th=[ 54264], | 70.00th=[ 64750], 80.00th=[ 74974], 90.00th=[ 93848], 95.00th=[110625], | 99.00th=[158335], 99.50th=[198181], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 31, max= 381, per=24.84%, avg=163.69, stdev=72.57, samples=68 iops : min= 1, max= 23, avg= 9.49, stdev= 4.60, samples=68 write: IOPS=11, BW=188KiB/s (192kB/s)(6544KiB/34847msec); 0 zone resets clat (usec): min=1427, max=212607, avg=39968.56, stdev=40257.63 lat (usec): min=1429, max=212609, avg=39971.15, stdev=40257.38 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2540], 10.00th=[ 3392], 20.00th=[ 7111], | 30.00th=[ 10421], 40.00th=[ 16319], 50.00th=[ 25560], 60.00th=[ 38011], | 70.00th=[ 51119], 80.00th=[ 71828], 90.00th=[101188], 95.00th=[122160], | 99.00th=[170918], 99.50th=[175113], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 63, max= 447, per=26.86%, avg=186.16, stdev=80.85, samples=68 iops : min= 3, max= 27, avg=10.90, stdev= 5.05, samples=68 lat (usec) : 100=3.39%, 250=0.78%, 500=0.13%, 1000=0.13% lat (msec) : 2=1.95%, 4=5.08%, 10=8.33%, 20=10.16%, 50=33.20% lat (msec) : 100=27.60%, 250=9.24% cpu : usr=0.08%, sys=5.34%, ctx=1666, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179693: Mon Sep 7 01:52:35 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(6256KiB/36343msec) clat (usec): min=49, max=228124, avg=51968.16, stdev=33863.86 lat (usec): min=50, max=228126, avg=51975.84, stdev=33866.97 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 69], 10.00th=[ 5669], 20.00th=[ 25822], | 30.00th=[ 33817], 40.00th=[ 41157], 50.00th=[ 48497], 60.00th=[ 56361], | 70.00th=[ 66323], 80.00th=[ 77071], 90.00th=[ 91751], 95.00th=[105382], | 99.00th=[168821], 99.50th=[200279], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 61, max= 320, per=26.40%, avg=173.99, stdev=68.37, samples=70 iops : min= 3, max= 20, avg=10.13, stdev= 4.36, samples=70 write: IOPS=10, BW=166KiB/s (170kB/s)(6032KiB/36343msec); 0 zone resets clat (usec): min=1420, max=248023, avg=42149.14, stdev=44545.66 lat (usec): min=1424, max=248026, avg=42160.51, stdev=44569.33 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1876], 10.00th=[ 3097], 20.00th=[ 6194], | 30.00th=[ 10290], 40.00th=[ 16909], 50.00th=[ 26608], 60.00th=[ 37487], | 70.00th=[ 52691], 80.00th=[ 71828], 90.00th=[105382], 95.00th=[137364], | 99.00th=[200279], 99.50th=[219153], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 31, max= 381, per=23.71%, avg=164.30, stdev=75.13, samples=70 iops : min= 1, max= 23, avg= 9.53, stdev= 4.74, samples=70 lat (usec) : 50=0.13%, 100=3.91%, 250=1.04% lat (msec) : 2=3.12%, 4=3.26%, 10=8.46%, 20=7.81%, 50=31.90% lat (msec) : 100=32.03%, 250=8.33% cpu : usr=0.07%, sys=5.24%, ctx=1644, 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=179694: Mon Sep 7 01:52:35 2026 read: IOPS=10, BW=174KiB/s (179kB/s)(6032KiB/34571msec) clat (usec): min=43, max=382514, avg=51393.06, stdev=39661.35 lat (usec): min=43, max=382515, avg=51395.21, stdev=39661.07 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 63], 10.00th=[ 92], 20.00th=[ 23987], | 30.00th=[ 31065], 40.00th=[ 37487], 50.00th=[ 45876], 60.00th=[ 54789], | 70.00th=[ 63701], 80.00th=[ 77071], 90.00th=[ 92799], 95.00th=[115868], | 99.00th=[181404], 99.50th=[191890], 99.90th=[383779], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 30, max= 412, per=26.51%, avg=174.70, stdev=75.80, samples=66 iops : min= 1, max= 25, avg=10.17, stdev= 4.75, samples=66 write: IOPS=11, BW=181KiB/s (185kB/s)(6256KiB/34571msec); 0 zone resets clat (usec): min=1501, max=214070, avg=38167.60, stdev=40099.37 lat (usec): min=1503, max=214073, avg=38171.33, stdev=40099.90 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 2089], 10.00th=[ 3458], 20.00th=[ 6456], | 30.00th=[ 9765], 40.00th=[ 14877], 50.00th=[ 22938], 60.00th=[ 33817], | 70.00th=[ 49021], 80.00th=[ 67634], 90.00th=[ 95945], 95.00th=[120062], | 99.00th=[179307], 99.50th=[179307], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 31, max= 412, per=25.98%, avg=180.04, stdev=83.20, samples=67 iops : min= 1, max= 25, avg=10.51, stdev= 5.28, samples=67 lat (usec) : 50=0.26%, 100=4.69%, 250=0.78%, 500=0.13% lat (msec) : 2=2.60%, 4=4.04%, 10=9.24%, 20=10.29%, 50=31.25% lat (msec) : 100=28.26%, 250=8.33%, 500=0.13% cpu : usr=0.08%, sys=5.91%, ctx=1702, 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=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=659KiB/s (675kB/s), 165KiB/s-174KiB/s (169kB/s-179kB/s), io=23.4MiB (24.5MB), run=34571-36343msec WRITE: bw=693KiB/s (710kB/s), 166KiB/s-188KiB/s (170kB/s-192kB/s), io=24.6MiB (25.8MB), run=34571-36343msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179696: Mon Sep 7 01:52:48 2026 read: IOPS=7, BW=125KiB/s (129kB/s)(5920KiB/47174msec) clat (msec): min=8, max=317, avg=51.53, stdev=46.19 lat (msec): min=8, max=317, avg=51.54, stdev=46.20 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 35], 60.00th=[ 43], | 70.00th=[ 56], 80.00th=[ 77], 90.00th=[ 120], 95.00th=[ 148], | 99.00th=[ 207], 99.50th=[ 257], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 30, max= 477, per=25.87%, avg=128.82, stdev=88.63, samples=90 iops : min= 1, max= 29, avg= 7.28, stdev= 5.61, samples=90 write: IOPS=8, BW=135KiB/s (138kB/s)(6368KiB/47174msec); 0 zone resets clat (msec): min=17, max=389, avg=70.27, stdev=50.76 lat (msec): min=17, max=389, avg=70.27, stdev=50.75 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 35], | 30.00th=[ 39], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 64], | 70.00th=[ 78], 80.00th=[ 102], 90.00th=[ 140], 95.00th=[ 165], | 99.00th=[ 247], 99.50th=[ 368], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 31, max= 382, per=25.91%, avg=135.77, stdev=86.03, samples=92 iops : min= 1, max= 23, avg= 7.71, stdev= 5.44, samples=92 lat (msec) : 10=0.39%, 20=12.63%, 50=42.84%, 100=25.91%, 250=17.58% lat (msec) : 500=0.65% cpu : usr=0.03%, sys=1.62%, ctx=1180, 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=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=179697: Mon Sep 7 01:52:48 2026 read: IOPS=7, BW=120KiB/s (122kB/s)(5744KiB/48016msec) clat (msec): min=8, max=216, avg=46.18, stdev=41.05 lat (msec): min=8, max=216, avg=46.18, stdev=41.05 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 48], 80.00th=[ 64], 90.00th=[ 107], 95.00th=[ 146], | 99.00th=[ 199], 99.50th=[ 213], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 31, max= 414, per=25.51%, avg=127.06, stdev=93.18, samples=87 iops : min= 1, max= 25, avg= 7.16, stdev= 5.87, samples=87 write: IOPS=8, BW=136KiB/s (140kB/s)(6544KiB/48016msec); 0 zone resets clat (msec): min=13, max=414, avg=76.50, stdev=59.57 lat (msec): min=13, max=417, avg=76.51, stdev=59.61 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 55], 60.00th=[ 70], | 70.00th=[ 86], 80.00th=[ 117], 90.00th=[ 157], 95.00th=[ 190], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 29, max= 382, per=25.57%, avg=134.01, stdev=88.85, samples=93 iops : min= 1, max= 23, avg= 7.59, stdev= 5.62, samples=93 lat (msec) : 10=1.04%, 20=11.98%, 50=45.18%, 100=22.92%, 250=17.71% lat (msec) : 500=1.17% cpu : usr=0.06%, sys=1.61%, ctx=1233, 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=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=179698: Mon Sep 7 01:52:48 2026 read: IOPS=8, BW=132KiB/s (135kB/s)(6256KiB/47377msec) clat (msec): min=7, max=257, avg=48.12, stdev=43.52 lat (msec): min=7, max=257, avg=48.12, stdev=43.52 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 53], 80.00th=[ 77], 90.00th=[ 110], 95.00th=[ 142], | 99.00th=[ 232], 99.50th=[ 249], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 473, per=27.46%, avg=136.73, stdev=103.69, samples=90 iops : min= 1, max= 29, avg= 7.77, stdev= 6.56, samples=90 write: IOPS=7, BW=127KiB/s (130kB/s)(6032KiB/47377msec); 0 zone resets clat (msec): min=15, max=415, avg=75.53, stdev=59.03 lat (msec): min=15, max=415, avg=75.53, stdev=59.03 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 68], | 70.00th=[ 86], 80.00th=[ 109], 90.00th=[ 157], 95.00th=[ 201], | 99.00th=[ 292], 99.50th=[ 359], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 31, max= 350, per=24.81%, avg=130.00, stdev=81.72, samples=90 iops : min= 1, max= 21, avg= 7.36, stdev= 5.15, samples=90 lat (msec) : 10=1.82%, 20=13.54%, 50=41.15%, 100=25.13%, 250=17.32% lat (msec) : 500=1.04% cpu : usr=0.06%, sys=1.79%, ctx=1270, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179699: Mon Sep 7 01:52:48 2026 read: IOPS=7, BW=127KiB/s (130kB/s)(6032KiB/47448msec) clat (msec): min=8, max=255, avg=50.53, stdev=46.48 lat (msec): min=8, max=255, avg=50.53, stdev=46.48 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 52], 80.00th=[ 74], 90.00th=[ 125], 95.00th=[ 155], | 99.00th=[ 234], 99.50th=[ 251], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 29, max= 411, per=26.12%, avg=130.08, stdev=83.17, samples=89 iops : min= 1, max= 25, avg= 7.35, stdev= 5.26, samples=89 write: IOPS=8, BW=132KiB/s (135kB/s)(6256KiB/47448msec); 0 zone resets clat (msec): min=13, max=425, avg=72.29, stdev=52.44 lat (msec): min=13, max=425, avg=72.29, stdev=52.44 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 44], 50.00th=[ 53], 60.00th=[ 70], | 70.00th=[ 84], 80.00th=[ 108], 90.00th=[ 144], 95.00th=[ 180], | 99.00th=[ 262], 99.50th=[ 296], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 31, max= 413, per=25.31%, avg=132.64, stdev=87.72, samples=91 iops : min= 1, max= 25, avg= 7.52, stdev= 5.52, samples=91 lat (msec) : 10=1.43%, 20=10.68%, 50=46.09%, 100=23.31%, 250=17.71% lat (msec) : 500=0.78% cpu : usr=0.06%, sys=1.88%, ctx=1242, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=499KiB/s (511kB/s), 120KiB/s-132KiB/s (122kB/s-135kB/s), io=23.4MiB (24.5MB), run=47174-48016msec WRITE: bw=525KiB/s (537kB/s), 127KiB/s-136KiB/s (130kB/s-140kB/s), io=24.6MiB (25.8MB), run=47174-48016msec 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=179711: Mon Sep 7 01:53:03 2026 read: IOPS=2, BW=2353KiB/s (2410kB/s)(7168KiB/3046msec) clat (msec): min=110, max=312, avg=162.28, stdev=80.42 lat (msec): min=110, max=312, avg=162.28, stdev=80.42 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 111], | 30.00th=[ 112], 40.00th=[ 112], 50.00th=[ 117], 60.00th=[ 138], | 70.00th=[ 138], 80.00th=[ 239], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 2027, max= 4225, per=67.32%, avg=2765.00, stdev=1264.42, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1681KiB/s (1721kB/s)(5120KiB/3046msec); 0 zone resets clat (msec): min=162, max=658, avg=362.71, stdev=206.02 lat (msec): min=162, max=658, avg=362.80, stdev=206.03 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 266], 60.00th=[ 266], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2027, max= 2043, per=35.36%, avg=2033.00, stdev= 7.66, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=66.67%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=4.01%, ctx=58, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179712: Mon Sep 7 01:53:03 2026 read: IOPS=0, BW=411KiB/s (421kB/s)(2048KiB/4986msec) clat (msec): min=142, max=616, avg=379.95, stdev=335.15 lat (msec): min=142, max=616, avg=379.95, stdev=335.15 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=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 1387, max= 2035, per=41.66%, avg=1711.00, stdev=458.21, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2054KiB/s (2103kB/s)(10.0MiB/4986msec); 0 zone resets clat (msec): min=140, max=978, avg=411.32, stdev=256.44 lat (msec): min=140, max=978, avg=411.47, stdev=256.38 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 182], | 30.00th=[ 192], 40.00th=[ 241], 50.00th=[ 317], 60.00th=[ 464], | 70.00th=[ 468], 80.00th=[ 527], 90.00th=[ 609], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 2027, max= 4096, per=49.45%, avg=2843.17, stdev=1008.69, samples=6 iops : min= 1, max= 4, avg= 2.00, stdev= 1.26, samples=6 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, 1000=8.33% cpu : usr=0.02%, sys=5.24%, ctx=88, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179713: Mon Sep 7 01:53:03 2026 read: IOPS=1, BW=1386KiB/s (1419kB/s)(6144KiB/4434msec) clat (msec): min=82, max=453, avg=229.69, stdev=127.82 lat (msec): min=82, max=453, avg=229.69, stdev=127.82 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 188], 50.00th=[ 188], 60.00th=[ 239], | 70.00th=[ 268], 80.00th=[ 268], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 2027, max= 4087, per=61.94%, avg=2544.00, stdev=1028.67, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1386KiB/s (1419kB/s)(6144KiB/4434msec); 0 zone resets clat (msec): min=127, max=1065, avg=502.53, stdev=407.53 lat (msec): min=127, max=1065, avg=502.66, stdev=407.51 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 355], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 2027, max= 2741, per=37.86%, avg=2177.00, stdev=315.34, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.35%, ctx=46, 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=179714: Mon Sep 7 01:53:03 2026 read: IOPS=1, BW=1258KiB/s (1288kB/s)(5120KiB/4069msec) clat (msec): min=111, max=741, avg=435.82, stdev=237.25 lat (msec): min=111, max=741, avg=435.82, stdev=237.25 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 112], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 2027, max= 4071, per=66.01%, avg=2711.00, stdev=1177.80, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1762KiB/s (1804kB/s)(7168KiB/4069msec); 0 zone resets clat (msec): min=103, max=696, avg=256.73, stdev=201.25 lat (msec): min=104, max=696, avg=256.86, stdev=201.25 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 203], 60.00th=[ 224], | 70.00th=[ 224], 80.00th=[ 266], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 2027, max= 4266, per=53.70%, avg=3087.75, stdev=1224.26, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 250=50.00%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=4.30%, ctx=63, 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=4108KiB/s (4206kB/s), 411KiB/s-2353KiB/s (421kB/s-2410kB/s), io=20.0MiB (20.0MB), run=3046-4986msec WRITE: bw=5751KiB/s (5889kB/s), 1386KiB/s-2054KiB/s (1419kB/s-2103kB/s), io=28.0MiB (29.4MB), run=3046-4986msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179716: Mon Sep 7 01:53:03 2026 read: IOPS=2, BW=2079KiB/s (2129kB/s)(7168KiB/3447msec) clat (usec): min=502, max=337279, avg=246114.32, stdev=112364.33 lat (usec): min=503, max=337280, avg=246115.62, stdev=112364.28 clat percentiles (usec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[238027], | 30.00th=[270533], 40.00th=[270533], 50.00th=[283116], 60.00th=[295699], | 70.00th=[295699], 80.00th=[295699], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 1670, max= 4047, per=52.77%, avg=2437.75, stdev=1085.24, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1485KiB/s (1521kB/s)(5120KiB/3447msec); 0 zone resets clat (msec): min=185, max=694, avg=344.52, stdev=204.72 lat (msec): min=185, max=694, avg=344.61, stdev=204.69 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 309], 60.00th=[ 309], | 70.00th=[ 326], 80.00th=[ 326], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 2023, max= 3938, per=41.27%, avg=2669.67, stdev=1098.48, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=15.96%, ctx=222, 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=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=179717: Mon Sep 7 01:53:03 2026 read: IOPS=0, BW=462KiB/s (473kB/s)(2048KiB/4432msec) clat (msec): min=237, max=304, avg=270.73, stdev=47.58 lat (msec): min=237, max=304, avg=270.73, stdev=47.58 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 1698, max= 2048, per=40.54%, avg=1873.00, stdev=247.49, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2310KiB/s (2366kB/s)(10.0MiB/4432msec); 0 zone resets clat (msec): min=137, max=667, avg=387.58, stdev=208.47 lat (msec): min=137, max=667, avg=388.65, stdev=207.43 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 174], | 30.00th=[ 178], 40.00th=[ 247], 50.00th=[ 288], 60.00th=[ 405], | 70.00th=[ 550], 80.00th=[ 609], 90.00th=[ 625], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1969, max= 4047, per=35.60%, avg=2303.00, stdev=769.60, samples=7 iops : min= 1, max= 3, avg= 1.43, stdev= 0.79, samples=7 lat (msec) : 250=41.67%, 500=25.00%, 750=33.33% cpu : usr=0.02%, sys=14.29%, ctx=141, 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=179718: Mon Sep 7 01:53:03 2026 read: IOPS=1, BW=1603KiB/s (1641kB/s)(6144KiB/3834msec) clat (usec): min=502, max=160503, avg=69835.30, stdev=77304.58 lat (usec): min=503, max=160505, avg=69836.50, stdev=77304.65 clat percentiles (usec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 1434], | 30.00th=[ 1434], 40.00th=[ 3032], 50.00th=[ 3032], 60.00th=[102237], | 70.00th=[152044], 80.00th=[152044], 90.00th=[160433], 95.00th=[160433], | 99.00th=[160433], 99.50th=[160433], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 1980, max= 4096, per=72.86%, avg=3366.33, stdev=1201.15, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1603KiB/s (1641kB/s)(6144KiB/3834msec); 0 zone resets clat (msec): min=191, max=1076, avg=568.56, stdev=339.33 lat (msec): min=191, max=1076, avg=568.64, stdev=339.33 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 592], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 1698, max= 2048, per=30.17%, avg=1952.00, stdev=144.08, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 4=8.33%, 250=33.33%, 500=16.67%, 750=8.33% lat (msec) : 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=10.28%, ctx=152, 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=179719: Mon Sep 7 01:53:03 2026 read: IOPS=1, BW=1254KiB/s (1284kB/s)(5120KiB/4083msec) clat (usec): min=570, max=236553, avg=65980.68, stdev=102904.63 lat (usec): min=571, max=236554, avg=65981.81, stdev=102904.73 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 570], | 30.00th=[ 668], 40.00th=[ 668], 50.00th=[ 1762], 60.00th=[ 1762], | 70.00th=[ 90702], 80.00th=[ 90702], 90.00th=[235930], 95.00th=[235930], | 99.00th=[235930], 99.50th=[235930], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1756KiB/s (1798kB/s)(7168KiB/4083msec); 0 zone resets clat (msec): min=201, max=799, avg=535.66, stdev=246.12 lat (msec): min=201, max=799, avg=535.77, stdev=246.13 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 226], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 550], 60.00th=[ 726], | 70.00th=[ 726], 80.00th=[ 751], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1771, max= 2023, per=30.16%, avg=1950.80, stdev=102.89, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=16.67% lat (msec) : 2=8.33%, 100=8.33%, 250=25.00%, 500=8.33%, 750=16.67% lat (msec) : 1000=16.67% cpu : usr=0.05%, sys=11.44%, ctx=114, 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=4621KiB/s (4732kB/s), 462KiB/s-2079KiB/s (473kB/s-2129kB/s), io=20.0MiB (20.0MB), run=3447-4432msec WRITE: bw=6469KiB/s (6625kB/s), 1485KiB/s-2310KiB/s (1521kB/s-2366kB/s), io=28.0MiB (29.4MB), run=3447-4432msec 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=179727: Mon Sep 7 01:53:24 2026 read: IOPS=0, BW=1893KiB/s (1939kB/s)(12.0MiB/6491msec) clat (msec): min=1089, max=3765, avg=2080.75, stdev=1466.46 lat (msec): min=1089, max=3765, avg=2080.75, stdev=1466.46 clat percentiles (msec): | 1.00th=[ 1083], 5.00th=[ 1083], 10.00th=[ 1083], 20.00th=[ 1083], | 30.00th=[ 1083], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 1385], | 70.00th=[ 3775], 80.00th=[ 3775], 90.00th=[ 3775], 95.00th=[ 3775], | 99.00th=[ 3775], 99.50th=[ 3775], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3775] bw ( KiB/s): min= 8126, max= 8192, per=100.00%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.08%, sys=6.95%, ctx=779, 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=179729: Mon Sep 7 01:53:24 2026 read: IOPS=0, BW=1325KiB/s (1357kB/s)(4096KiB/3091msec) clat (nsec): min=1026.8M, max=1026.8M, avg=1026782430.00, stdev= 0.00 lat (nsec): min=1026.8M, max=1026.8M, avg=1026785088.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1028], 5.00th=[ 1028], 10.00th=[ 1028], 20.00th=[ 1028], | 30.00th=[ 1028], 40.00th=[ 1028], 50.00th=[ 1028], 60.00th=[ 1028], | 70.00th=[ 1028], 80.00th=[ 1028], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2650KiB/s (2714kB/s)(8192KiB/3091msec); 0 zone resets clat (msec): min=671, max=1318, avg=995.09, stdev=457.56 lat (msec): min=671, max=1318, avg=995.32, stdev=457.56 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.43%, ctx=77, 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=179731: Mon Sep 7 01:53:24 2026 write: IOPS=0, BW=1831KiB/s (1875kB/s)(12.0MiB/6710msec); 0 zone resets clat (msec): min=471, max=3338, avg=2214.24, stdev=1529.97 lat (msec): min=472, max=3338, avg=2214.91, stdev=1530.10 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 2836], 50.00th=[ 2836], 60.00th=[ 2836], | 70.00th=[ 3339], 80.00th=[ 3339], 90.00th=[ 3339], 95.00th=[ 3339], | 99.00th=[ 3339], 99.50th=[ 3339], 99.90th=[ 3339], 99.95th=[ 3339], | 99.99th=[ 3339] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=1.70%, ctx=66, 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=179733: Mon Sep 7 01:53:24 2026 write: IOPS=0, BW=1922KiB/s (1968kB/s)(12.0MiB/6394msec); 0 zone resets clat (msec): min=497, max=4976, avg=2020.64, stdev=2560.65 lat (msec): min=498, max=4977, avg=2021.21, stdev=2560.47 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 5000], 80.00th=[ 5000], 90.00th=[ 5000], 95.00th=[ 5000], | 99.00th=[ 5000], 99.50th=[ 5000], 99.90th=[ 5000], 99.95th=[ 5000], | 99.99th=[ 5000] bw ( KiB/s): min= 8126, max= 8143, per=100.00%, avg=8134.50, stdev=12.02, 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=2.08%, ctx=51, 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=2524KiB/s (2585kB/s), 1325KiB/s-1893KiB/s (1357kB/s-1939kB/s), io=16.0MiB (16.8MB), run=3091-6491msec WRITE: bw=4883KiB/s (5001kB/s), 1831KiB/s-2650KiB/s (1875kB/s-2714kB/s), io=32.0MiB (33.6MB), run=3091-6710msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179728: Mon Sep 7 01:53:24 2026 read: IOPS=0, BW=1885KiB/s (1930kB/s)(12.0MiB/6519msec) clat (msec): min=1146, max=3867, avg=2153.46, stdev=1491.79 lat (msec): min=1146, max=3867, avg=2153.47, stdev=1491.79 clat percentiles (msec): | 1.00th=[ 1150], 5.00th=[ 1150], 10.00th=[ 1150], 20.00th=[ 1150], | 30.00th=[ 1150], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 70.00th=[ 3876], 80.00th=[ 3876], 90.00th=[ 3876], 95.00th=[ 3876], | 99.00th=[ 3876], 99.50th=[ 3876], 99.90th=[ 3876], 99.95th=[ 3876], | 99.99th=[ 3876] bw ( KiB/s): min= 7953, max= 8143, per=100.00%, avg=8048.00, stdev=134.35, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=1.87%, ctx=59, 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=179730: Mon Sep 7 01:53:24 2026 read: IOPS=0, BW=589KiB/s (603kB/s)(4096KiB/6952msec) clat (nsec): min=2108.2M, max=2108.2M, avg=2108217282.00, stdev= 0.00 lat (nsec): min=2108.2M, max=2108.2M, avg=2108220095.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2106], 5.00th=[ 2106], 10.00th=[ 2106], 20.00th=[ 2106], | 30.00th=[ 2106], 40.00th=[ 2106], 50.00th=[ 2106], 60.00th=[ 2106], | 70.00th=[ 2106], 80.00th=[ 2106], 90.00th=[ 2106], 95.00th=[ 2106], | 99.00th=[ 2106], 99.50th=[ 2106], 99.90th=[ 2106], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1178KiB/s (1207kB/s)(8192KiB/6952msec); 0 zone resets clat (msec): min=169, max=4559, avg=2364.45, stdev=3104.04 lat (msec): min=170, max=4567, avg=2368.93, stdev=3108.67 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 169], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 169], 60.00th=[ 4530], | 70.00th=[ 4530], 80.00th=[ 4530], 90.00th=[ 4530], 95.00th=[ 4530], | 99.00th=[ 4530], 99.50th=[ 4530], 99.90th=[ 4530], 99.95th=[ 4530], | 99.99th=[ 4530] lat (msec) : 250=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=1.63%, ctx=55, 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=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=179732: Mon Sep 7 01:53:24 2026 write: IOPS=0, BW=1975KiB/s (2023kB/s)(12.0MiB/6221msec); 0 zone resets clat (msec): min=553, max=4137, avg=1976.19, stdev=1903.02 lat (msec): min=554, max=4138, avg=1976.62, stdev=1902.88 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 4144], 80.00th=[ 4144], 90.00th=[ 4144], 95.00th=[ 4144], | 99.00th=[ 4144], 99.50th=[ 4144], 99.90th=[ 4144], 99.95th=[ 4144], | 99.99th=[ 4144] bw ( KiB/s): min= 7433, max= 8015, per=100.00%, avg=7724.00, stdev=411.54, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.06%, sys=2.80%, ctx=103, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=179734: Mon Sep 7 01:53:24 2026 write: IOPS=0, BW=1898KiB/s (1944kB/s)(12.0MiB/6474msec); 0 zone resets clat (msec): min=1433, max=3542, avg=2143.91, stdev=1211.28 lat (msec): min=1434, max=3542, avg=2144.30, stdev=1211.29 clat percentiles (msec): | 1.00th=[ 1435], 5.00th=[ 1435], 10.00th=[ 1435], 20.00th=[ 1435], | 30.00th=[ 1435], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 70.00th=[ 3540], 80.00th=[ 3540], 90.00th=[ 3540], 95.00th=[ 3540], | 99.00th=[ 3540], 99.50th=[ 3540], 99.90th=[ 3540], 99.95th=[ 3540], | 99.99th=[ 3540] bw ( KiB/s): min= 7953, max= 8078, per=100.00%, avg=8015.50, stdev=88.39, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=1.42%, ctx=38, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2357KiB/s (2413kB/s), 589KiB/s-1885KiB/s (603kB/s-1930kB/s), io=16.0MiB (16.8MB), run=6519-6952msec WRITE: bw=4713KiB/s (4827kB/s), 1178KiB/s-1975KiB/s (1207kB/s-2023kB/s), io=32.0MiB (33.6MB), run=6221-6952msec