== sanity test 398b: DIO and buffer IO race ============== 06:12:16 (1786183936) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.40646 s, 7.9 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=179419: Sat Aug 8 06:14:42 2026 read: IOPS=12, BW=48.7KiB/s (49.9kB/s)(5992KiB/123057msec) clat (usec): min=33, max=1216.4k, avg=45749.81, stdev=42520.18 lat (usec): min=33, max=1216.4k, avg=45752.19, stdev=42519.71 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 12780], 10.00th=[ 17171], | 20.00th=[ 22676], 30.00th=[ 28181], 40.00th=[ 32900], | 50.00th=[ 38536], 60.00th=[ 44827], 70.00th=[ 52691], | 80.00th=[ 63177], 90.00th=[ 81265], 95.00th=[ 100140], | 99.00th=[ 158335], 99.50th=[ 193987], 99.90th=[ 278922], | 99.95th=[1216349], 99.99th=[1216349] bw ( KiB/s): min= 6, max= 103, per=25.69%, avg=49.07, stdev=19.04, samples=238 iops : min= 1, max= 25, avg=11.65, stdev= 4.77, samples=238 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(6296KiB/123057msec); 0 zone resets clat (usec): min=919, max=352682, avg=34278.91, stdev=37004.83 lat (usec): min=920, max=352683, avg=34284.96, stdev=37002.32 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1434], 10.00th=[ 1778], 20.00th=[ 4113], | 30.00th=[ 7111], 40.00th=[ 13829], 50.00th=[ 22938], 60.00th=[ 32900], | 70.00th=[ 43779], 80.00th=[ 58459], 90.00th=[ 83362], 95.00th=[106431], | 99.00th=[168821], 99.50th=[185598], 99.90th=[270533], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 7, max= 150, per=25.77%, avg=51.55, stdev=22.26, samples=238 iops : min= 1, max= 37, avg=12.27, stdev= 5.60, samples=238 lat (usec) : 50=0.23%, 100=1.07%, 250=0.13%, 500=0.03%, 750=0.13% lat (usec) : 1000=0.10% lat (msec) : 2=5.73%, 4=4.23%, 10=8.33%, 20=11.36%, 50=39.16% lat (msec) : 100=24.06%, 250=5.27%, 500=0.13%, 2000=0.03% cpu : usr=0.09%, sys=5.26%, ctx=6523, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179420: Sat Aug 8 06:14:42 2026 read: IOPS=11, BW=47.5KiB/s (48.6kB/s)(5940KiB/125179msec) clat (usec): min=32, max=230548, avg=45812.64, stdev=29835.71 lat (usec): min=32, max=230549, avg=45814.14, stdev=29835.66 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11469], 10.00th=[ 17171], 20.00th=[ 22938], | 30.00th=[ 27919], 40.00th=[ 33424], 50.00th=[ 40109], 60.00th=[ 46400], | 70.00th=[ 54264], 80.00th=[ 65799], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[145753], 99.50th=[177210], 99.90th=[227541], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 6, max= 107, per=24.71%, avg=47.19, stdev=17.82, samples=244 iops : min= 1, max= 26, avg=11.17, stdev= 4.49, samples=244 write: IOPS=12, BW=50.7KiB/s (51.9kB/s)(6348KiB/125179msec); 0 zone resets clat (usec): min=807, max=1064.8k, avg=35666.49, stdev=44017.45 lat (usec): min=807, max=1064.8k, avg=35668.41, stdev=44017.22 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1369], 10.00th=[ 1745], | 20.00th=[ 4293], 30.00th=[ 8586], 40.00th=[ 16188], | 50.00th=[ 25035], 60.00th=[ 34341], 70.00th=[ 46400], | 80.00th=[ 61604], 90.00th=[ 81265], 95.00th=[ 100140], | 99.00th=[ 170918], 99.50th=[ 198181], 99.90th=[ 252707], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 7, max= 181, per=25.12%, avg=50.24, stdev=22.42, samples=245 iops : min= 1, max= 45, avg=11.93, stdev= 5.63, samples=245 lat (usec) : 50=0.29%, 100=1.50%, 250=0.13%, 500=0.03%, 1000=0.13% lat (msec) : 2=5.89%, 4=4.04%, 10=6.77%, 20=10.58%, 50=39.84% lat (msec) : 100=25.59%, 250=5.14%, 500=0.03%, 2000=0.03% cpu : usr=0.08%, sys=5.35%, ctx=6603, 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=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=179421: Sat Aug 8 06:14:42 2026 read: IOPS=12, BW=48.9KiB/s (50.1kB/s)(6028KiB/123214msec) clat (usec): min=33, max=233295, avg=45132.51, stdev=29052.28 lat (usec): min=33, max=233296, avg=45134.17, stdev=29052.20 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 10683], 10.00th=[ 16712], 20.00th=[ 22938], | 30.00th=[ 27919], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 45876], | 70.00th=[ 53216], 80.00th=[ 64226], 90.00th=[ 83362], 95.00th=[ 96994], | 99.00th=[152044], 99.50th=[166724], 99.90th=[204473], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 7, max= 119, per=25.69%, avg=49.08, stdev=19.44, samples=239 iops : min= 1, max= 29, avg=11.64, stdev= 4.90, samples=239 write: IOPS=12, BW=50.8KiB/s (52.0kB/s)(6260KiB/123214msec); 0 zone resets clat (usec): min=777, max=1154.7k, avg=34915.58, stdev=45825.14 lat (usec): min=778, max=1154.7k, avg=34922.06, stdev=45822.03 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1385], 10.00th=[ 1811], | 20.00th=[ 3818], 30.00th=[ 7635], 40.00th=[ 15270], | 50.00th=[ 23462], 60.00th=[ 32900], 70.00th=[ 42730], | 80.00th=[ 58459], 90.00th=[ 84411], 95.00th=[ 107480], | 99.00th=[ 154141], 99.50th=[ 204473], 99.90th=[ 274727], | 99.95th=[1149240], 99.99th=[1149240] bw ( KiB/s): min= 7, max= 118, per=25.45%, avg=50.90, stdev=22.28, samples=239 iops : min= 1, max= 29, avg=12.10, stdev= 5.60, samples=239 lat (usec) : 50=0.20%, 100=1.56%, 250=0.10%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=5.70%, 4=4.92%, 10=6.64%, 20=10.71%, 50=40.17% lat (msec) : 100=24.54%, 250=5.24%, 500=0.03%, 2000=0.03% cpu : usr=0.08%, sys=5.40%, ctx=6548, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179423: Sat Aug 8 06:14:42 2026 read: IOPS=12, BW=48.5KiB/s (49.7kB/s)(6052KiB/124682msec) clat (usec): min=31, max=282583, avg=45830.88, stdev=31062.57 lat (usec): min=32, max=282584, avg=45840.22, stdev=31060.15 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 10814], 10.00th=[ 16188], 20.00th=[ 22676], | 30.00th=[ 27395], 40.00th=[ 33424], 50.00th=[ 39060], 60.00th=[ 45876], | 70.00th=[ 54264], 80.00th=[ 65799], 90.00th=[ 84411], 95.00th=[103285], | 99.00th=[149947], 99.50th=[181404], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 7, max= 111, per=25.34%, avg=48.40, stdev=19.32, samples=242 iops : min= 1, max= 27, avg=11.47, stdev= 4.85, samples=242 write: IOPS=12, BW=50.0KiB/s (51.2kB/s)(6236KiB/124682msec); 0 zone resets clat (usec): min=1065, max=1172.4k, avg=35130.09, stdev=45179.88 lat (usec): min=1067, max=1172.4k, avg=35132.49, stdev=45180.65 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1401], 10.00th=[ 1909], | 20.00th=[ 4424], 30.00th=[ 8717], 40.00th=[ 16450], | 50.00th=[ 24773], 60.00th=[ 32900], 70.00th=[ 45351], | 80.00th=[ 58983], 90.00th=[ 83362], 95.00th=[ 103285], | 99.00th=[ 162530], 99.50th=[ 179307], 99.90th=[ 204473], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 8, max= 119, per=24.97%, avg=49.95, stdev=21.01, samples=242 iops : min= 2, max= 29, avg=11.86, stdev= 5.27, samples=242 lat (usec) : 50=0.16%, 100=1.53%, 250=0.13%, 500=0.03% lat (msec) : 2=5.47%, 4=4.13%, 10=7.16%, 20=11.72%, 50=38.80% lat (msec) : 100=25.26%, 250=5.47%, 500=0.10%, 2000=0.03% cpu : usr=0.07%, sys=5.25%, ctx=6547, majf=0, minf=18 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=192KiB/s (196kB/s), 47.5KiB/s-48.9KiB/s (48.6kB/s-50.1kB/s), io=23.4MiB (24.6MB), run=123057-125179msec WRITE: bw=201KiB/s (206kB/s), 50.0KiB/s-51.2KiB/s (51.2kB/s-52.4kB/s), io=24.6MiB (25.7MB), run=123057-125179msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179422: Sat Aug 8 06:15:23 2026 read: IOPS=9, BW=36.2KiB/s (37.1kB/s)(5992KiB/165328msec) clat (msec): min=6, max=1251, avg=44.06, stdev=49.27 lat (msec): min=6, max=1251, avg=44.06, stdev=49.27 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 63], 90.00th=[ 92], 95.00th=[ 122], | 99.00th=[ 199], 99.50th=[ 241], 99.90th=[ 279], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 136, per=25.47%, avg=36.67, stdev=24.80, samples=318 iops : min= 1, max= 34, avg= 8.50, stdev= 6.25, samples=318 write: IOPS=9, BW=38.1KiB/s (38.0kB/s)(6296KiB/165328msec); 0 zone resets clat (msec): min=8, max=412, avg=62.81, stdev=45.54 lat (msec): min=8, max=412, avg=62.81, stdev=45.54 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 50], 60.00th=[ 60], | 70.00th=[ 72], 80.00th=[ 92], 90.00th=[ 122], 95.00th=[ 150], | 99.00th=[ 228], 99.50th=[ 268], 99.90th=[ 351], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 159, per=25.25%, avg=38.13, stdev=24.10, samples=321 iops : min= 1, max= 39, avg= 8.87, stdev= 6.07, samples=321 lat (msec) : 10=1.95%, 20=14.65%, 50=45.15%, 100=25.36%, 250=12.43% lat (msec) : 500=0.42%, 2000=0.03% cpu : usr=0.05%, sys=2.08%, ctx=4925, 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=179424: Sat Aug 8 06:15:23 2026 read: IOPS=8, BW=35.7KiB/s (36.6kB/s)(5940KiB/166297msec) clat (msec): min=4, max=1081, avg=44.06, stdev=48.71 lat (msec): min=4, max=1081, avg=44.06, stdev=48.71 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 48], 80.00th=[ 64], 90.00th=[ 95], 95.00th=[ 129], | 99.00th=[ 201], 99.50th=[ 247], 99.90th=[ 313], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 160, per=25.61%, avg=36.88, stdev=25.53, samples=313 iops : min= 1, max= 40, avg= 8.56, stdev= 6.44, samples=313 write: IOPS=9, BW=38.2KiB/s (39.1kB/s)(6348KiB/166297msec); 0 zone resets clat (msec): min=10, max=418, avg=63.26, stdev=44.74 lat (msec): min=10, max=418, avg=63.26, stdev=44.74 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 61], | 70.00th=[ 74], 80.00th=[ 90], 90.00th=[ 126], 95.00th=[ 153], | 99.00th=[ 220], 99.50th=[ 241], 99.90th=[ 355], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 7, max= 143, per=25.16%, avg=37.99, stdev=24.46, samples=324 iops : min= 1, max= 35, avg= 8.83, stdev= 6.17, samples=324 lat (msec) : 10=2.60%, 20=15.59%, 50=42.61%, 100=26.17%, 250=12.60% lat (msec) : 500=0.39%, 2000=0.03% cpu : usr=0.05%, sys=2.11%, ctx=5135, 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=179425: Sat Aug 8 06:15:23 2026 read: IOPS=9, BW=36.4KiB/s (37.3kB/s)(6028KiB/165654msec) clat (msec): min=5, max=336, avg=44.08, stdev=39.54 lat (msec): min=5, max=336, avg=44.09, stdev=39.54 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 48], 80.00th=[ 64], 90.00th=[ 94], 95.00th=[ 124], | 99.00th=[ 194], 99.50th=[ 236], 99.90th=[ 317], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 7, max= 159, per=25.39%, avg=36.56, stdev=24.13, samples=321 iops : min= 1, max= 39, avg= 8.48, stdev= 6.07, samples=321 write: IOPS=9, BW=37.8KiB/s (38.7kB/s)(6260KiB/165654msec); 0 zone resets clat (msec): min=10, max=1118, avg=63.10, stdev=51.77 lat (msec): min=10, max=1118, avg=63.10, stdev=51.77 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 58], | 70.00th=[ 72], 80.00th=[ 91], 90.00th=[ 118], 95.00th=[ 146], | 99.00th=[ 241], 99.50th=[ 275], 99.90th=[ 422], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 111, per=25.15%, avg=37.98, stdev=23.50, samples=321 iops : min= 1, max= 27, avg= 8.83, stdev= 5.93, samples=321 lat (msec) : 10=1.73%, 20=14.32%, 50=45.61%, 100=26.24%, 250=11.56% lat (msec) : 500=0.52%, 2000=0.03% cpu : usr=0.06%, sys=2.15%, ctx=5103, 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=179426: Sat Aug 8 06:15:23 2026 read: IOPS=9, BW=36.4KiB/s (37.3kB/s)(6052KiB/166321msec) clat (msec): min=4, max=289, avg=43.25, stdev=39.15 lat (msec): min=4, max=289, avg=43.25, stdev=39.15 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 64], 90.00th=[ 93], 95.00th=[ 125], | 99.00th=[ 190], 99.50th=[ 239], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 180, per=25.65%, avg=36.94, stdev=26.31, samples=318 iops : min= 1, max= 45, avg= 8.57, stdev= 6.64, samples=318 write: IOPS=9, BW=37.5KiB/s (38.4kB/s)(6236KiB/166321msec); 0 zone resets clat (msec): min=8, max=1148, avg=64.42, stdev=52.30 lat (msec): min=8, max=1148, avg=64.43, stdev=52.30 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 51], 60.00th=[ 61], | 70.00th=[ 73], 80.00th=[ 92], 90.00th=[ 123], 95.00th=[ 155], | 99.00th=[ 228], 99.50th=[ 264], 99.90th=[ 334], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 119, per=24.94%, avg=37.66, stdev=22.51, samples=321 iops : min= 1, max= 29, avg= 8.75, stdev= 5.67, samples=321 lat (msec) : 10=2.28%, 20=14.65%, 50=44.56%, 100=25.72%, 250=12.30% lat (msec) : 500=0.46%, 2000=0.03% cpu : usr=0.06%, sys=2.06%, ctx=4882, 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=144KiB/s (148kB/s), 35.7KiB/s-36.4KiB/s (36.6kB/s-37.3kB/s), io=23.4MiB (24.6MB), run=165328-166321msec WRITE: bw=151KiB/s (155kB/s), 37.5KiB/s-38.2KiB/s (38.4kB/s-39.1kB/s), io=24.6MiB (25.7MB), run=165328-166321msec 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=179471: Sat Aug 8 06:16:06 2026 read: IOPS=11, BW=182KiB/s (186kB/s)(5920KiB/32614msec) clat (usec): min=41, max=194406, avg=46690.86, stdev=29845.97 lat (usec): min=41, max=194407, avg=46692.62, stdev=29846.25 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 62], 10.00th=[ 108], 20.00th=[ 24249], | 30.00th=[ 31851], 40.00th=[ 38011], 50.00th=[ 42730], 60.00th=[ 50594], | 70.00th=[ 59507], 80.00th=[ 67634], 90.00th=[ 81265], 95.00th=[ 95945], | 99.00th=[147850], 99.50th=[175113], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 61, max= 318, per=25.27%, avg=181.42, stdev=61.49, samples=64 iops : min= 3, max= 19, avg=10.55, stdev= 3.87, samples=64 write: IOPS=12, BW=195KiB/s (200kB/s)(6368KiB/32614msec); 0 zone resets clat (usec): min=1611, max=202972, avg=38176.07, stdev=36889.56 lat (usec): min=1613, max=202974, avg=38178.95, stdev=36889.36 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 2442], 10.00th=[ 4178], 20.00th=[ 7308], | 30.00th=[ 11863], 40.00th=[ 17695], 50.00th=[ 27657], 60.00th=[ 36963], | 70.00th=[ 46924], 80.00th=[ 63701], 90.00th=[ 87557], 95.00th=[115868], | 99.00th=[162530], 99.50th=[193987], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 31, max= 377, per=25.85%, avg=195.19, stdev=76.40, samples=64 iops : min= 1, max= 23, avg=11.42, stdev= 4.84, samples=64 lat (usec) : 50=0.39%, 100=4.17%, 250=0.39%, 1000=0.13% lat (msec) : 2=1.95%, 4=3.12%, 10=8.20%, 20=10.03%, 50=36.72% lat (msec) : 100=28.91%, 250=5.99% cpu : usr=0.08%, sys=5.64%, ctx=1693, 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=179472: Sat Aug 8 06:16:06 2026 read: IOPS=11, BW=178KiB/s (183kB/s)(5744KiB/32193msec) clat (usec): min=37, max=330890, avg=48945.27, stdev=33585.00 lat (usec): min=37, max=330891, avg=48946.51, stdev=33585.00 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 65], 10.00th=[ 15008], 20.00th=[ 25297], | 30.00th=[ 32113], 40.00th=[ 37487], 50.00th=[ 44827], 60.00th=[ 52167], | 70.00th=[ 59507], 80.00th=[ 67634], 90.00th=[ 86508], 95.00th=[107480], | 99.00th=[143655], 99.50th=[168821], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 31, max= 378, per=24.86%, avg=178.46, stdev=74.66, samples=63 iops : min= 1, max= 23, avg=10.37, stdev= 4.71, samples=63 write: IOPS=12, BW=203KiB/s (208kB/s)(6544KiB/32193msec); 0 zone resets clat (usec): min=1622, max=150542, avg=35196.01, stdev=33064.31 lat (usec): min=1624, max=150545, avg=35210.55, stdev=33057.57 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2212], 10.00th=[ 3261], 20.00th=[ 6521], | 30.00th=[ 10552], 40.00th=[ 16319], 50.00th=[ 25035], 60.00th=[ 33817], | 70.00th=[ 44303], 80.00th=[ 62129], 90.00th=[ 85459], 95.00th=[102237], | 99.00th=[135267], 99.50th=[137364], 99.90th=[149947], 99.95th=[149947], | 99.99th=[149947] bw ( KiB/s): min= 63, max= 380, per=26.91%, avg=203.17, stdev=78.00, samples=63 iops : min= 3, max= 23, avg=11.92, stdev= 4.94, samples=63 lat (usec) : 50=0.13%, 100=3.39%, 250=0.13%, 500=0.26%, 750=0.13% lat (msec) : 2=1.82%, 4=4.56%, 10=8.59%, 20=10.81%, 50=35.94% lat (msec) : 100=28.52%, 250=5.60%, 500=0.13% cpu : usr=0.08%, sys=5.99%, ctx=1711, 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=179473: Sat Aug 8 06:16:06 2026 read: IOPS=11, BW=188KiB/s (192kB/s)(6256KiB/33339msec) clat (usec): min=38, max=191253, avg=48030.08, stdev=31926.74 lat (usec): min=38, max=191254, avg=48031.78, stdev=31926.78 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 433], 20.00th=[ 25035], | 30.00th=[ 31589], 40.00th=[ 37487], 50.00th=[ 43779], 60.00th=[ 50594], | 70.00th=[ 58983], 80.00th=[ 70779], 90.00th=[ 86508], 95.00th=[111674], | 99.00th=[147850], 99.50th=[173016], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 62, max= 349, per=25.97%, avg=186.46, stdev=63.93, samples=65 iops : min= 3, max= 21, avg=10.86, stdev= 4.03, samples=65 write: IOPS=11, BW=181KiB/s (185kB/s)(6032KiB/33339msec); 0 zone resets clat (usec): min=1616, max=175725, avg=38346.17, stdev=36034.12 lat (usec): min=1619, max=175727, avg=38392.27, stdev=36010.59 clat percentiles (usec): | 1.00th=[ 1893], 5.00th=[ 2409], 10.00th=[ 3982], 20.00th=[ 6915], | 30.00th=[ 10683], 40.00th=[ 16909], 50.00th=[ 26346], 60.00th=[ 36963], | 70.00th=[ 52167], 80.00th=[ 70779], 90.00th=[ 92799], 95.00th=[109577], | 99.00th=[141558], 99.50th=[173016], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 62, max= 495, per=23.39%, avg=176.60, stdev=86.28, samples=65 iops : min= 3, max= 30, avg=10.23, stdev= 5.44, samples=65 lat (usec) : 50=0.39%, 100=4.30%, 250=0.39%, 500=0.26% lat (msec) : 2=1.30%, 4=3.78%, 10=9.11%, 20=9.90%, 50=34.38% lat (msec) : 100=29.04%, 250=7.16% cpu : usr=0.07%, sys=5.60%, ctx=1675, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179475: Sat Aug 8 06:16:06 2026 read: IOPS=11, BW=184KiB/s (189kB/s)(6032KiB/32723msec) clat (usec): min=51, max=207152, avg=48853.73, stdev=33475.49 lat (usec): min=52, max=207152, avg=48854.91, stdev=33475.45 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 64], 10.00th=[ 113], 20.00th=[ 25035], | 30.00th=[ 32637], 40.00th=[ 38536], 50.00th=[ 44303], 60.00th=[ 51119], | 70.00th=[ 57934], 80.00th=[ 72877], 90.00th=[ 88605], 95.00th=[110625], | 99.00th=[160433], 99.50th=[198181], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 63, max= 351, per=25.50%, avg=183.12, stdev=59.83, samples=64 iops : min= 3, max= 21, avg=10.66, stdev= 3.75, samples=64 write: IOPS=11, BW=191KiB/s (196kB/s)(6256KiB/32723msec); 0 zone resets clat (usec): min=1530, max=170576, avg=36261.10, stdev=37074.04 lat (usec): min=1531, max=170579, avg=36268.56, stdev=37070.81 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2024], 10.00th=[ 2966], 20.00th=[ 5997], | 30.00th=[ 9765], 40.00th=[ 15270], 50.00th=[ 21890], 60.00th=[ 31327], | 70.00th=[ 44827], 80.00th=[ 63701], 90.00th=[ 91751], 95.00th=[117965], | 99.00th=[152044], 99.50th=[166724], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 31, max= 384, per=25.35%, avg=191.41, stdev=81.74, samples=64 iops : min= 1, max= 24, avg=11.17, stdev= 5.20, samples=64 lat (usec) : 100=4.82%, 250=0.52%, 750=0.13% lat (msec) : 2=2.34%, 4=4.04%, 10=9.51%, 20=9.77%, 50=34.77% lat (msec) : 100=26.69%, 250=7.42% cpu : usr=0.06%, sys=5.64%, ctx=1562, 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=718KiB/s (736kB/s), 178KiB/s-188KiB/s (183kB/s-192kB/s), io=23.4MiB (24.5MB), run=32193-33339msec WRITE: bw=756KiB/s (774kB/s), 181KiB/s-203KiB/s (185kB/s-208kB/s), io=24.6MiB (25.8MB), run=32193-33339msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179476: Sat Aug 8 06:16:18 2026 read: IOPS=8, BW=134KiB/s (137kB/s)(5920KiB/44341msec) clat (msec): min=6, max=296, avg=46.53, stdev=42.61 lat (msec): min=6, max=296, avg=46.53, stdev=42.61 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 104], 95.00th=[ 144], | 99.00th=[ 203], 99.50th=[ 222], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 445, per=24.62%, avg=132.18, stdev=95.49, samples=87 iops : min= 1, max= 27, avg= 7.46, stdev= 6.04, samples=87 write: IOPS=8, BW=144KiB/s (147kB/s)(6368KiB/44341msec); 0 zone resets clat (msec): min=13, max=264, avg=67.87, stdev=46.21 lat (msec): min=13, max=264, avg=67.87, stdev=46.22 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 33], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 51], 60.00th=[ 61], | 70.00th=[ 80], 80.00th=[ 104], 90.00th=[ 133], 95.00th=[ 159], | 99.00th=[ 230], 99.50th=[ 253], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 30, max= 509, per=25.32%, avg=143.08, stdev=92.49, samples=87 iops : min= 1, max= 31, avg= 8.14, stdev= 5.87, samples=87 lat (msec) : 10=1.43%, 20=12.37%, 50=46.22%, 100=23.83%, 250=15.76% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=2.09%, ctx=1236, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179477: Sat Aug 8 06:16:18 2026 read: IOPS=8, BW=130KiB/s (133kB/s)(5744KiB/44157msec) clat (msec): min=6, max=198, avg=44.63, stdev=39.94 lat (msec): min=6, max=198, avg=44.63, stdev=39.94 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 47], 80.00th=[ 63], 90.00th=[ 107], 95.00th=[ 146], | 99.00th=[ 188], 99.50th=[ 194], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 28, max= 479, per=25.01%, avg=134.31, stdev=92.58, samples=84 iops : min= 1, max= 29, avg= 7.58, stdev= 5.89, samples=84 write: IOPS=9, BW=148KiB/s (152kB/s)(6544KiB/44157msec); 0 zone resets clat (msec): min=14, max=343, avg=68.26, stdev=45.12 lat (msec): min=14, max=343, avg=68.26, stdev=45.12 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 38], 40.00th=[ 45], 50.00th=[ 54], 60.00th=[ 65], | 70.00th=[ 83], 80.00th=[ 102], 90.00th=[ 134], 95.00th=[ 155], | 99.00th=[ 205], 99.50th=[ 224], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 573, per=26.44%, avg=149.40, stdev=97.26, samples=86 iops : min= 1, max= 35, avg= 8.53, stdev= 6.17, samples=86 lat (msec) : 10=0.78%, 20=13.67%, 50=43.23%, 100=26.17%, 250=15.89% lat (msec) : 500=0.26% cpu : usr=0.04%, sys=2.01%, ctx=1222, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179478: Sat Aug 8 06:16:18 2026 read: IOPS=8, BW=141KiB/s (145kB/s)(6256KiB/44325msec) clat (msec): min=6, max=293, avg=43.64, stdev=38.95 lat (msec): min=6, max=293, avg=43.64, stdev=38.95 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 62], 90.00th=[ 91], 95.00th=[ 129], | 99.00th=[ 207], 99.50th=[ 228], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 477, per=27.66%, avg=148.53, stdev=105.71, samples=83 iops : min= 1, max= 29, avg= 8.48, stdev= 6.71, samples=83 write: IOPS=8, BW=136KiB/s (139kB/s)(6032KiB/44325msec); 0 zone resets clat (msec): min=11, max=324, avg=71.85, stdev=49.68 lat (msec): min=11, max=324, avg=71.86, stdev=49.68 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 44], 50.00th=[ 57], 60.00th=[ 69], | 70.00th=[ 87], 80.00th=[ 108], 90.00th=[ 146], 95.00th=[ 161], | 99.00th=[ 266], 99.50th=[ 279], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 30, max= 382, per=23.82%, avg=134.56, stdev=79.32, samples=87 iops : min= 1, max= 23, avg= 7.61, stdev= 5.06, samples=87 lat (msec) : 10=0.52%, 20=12.89%, 50=46.22%, 100=24.74%, 250=14.97% lat (msec) : 500=0.65% cpu : usr=0.05%, sys=2.06%, ctx=1216, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179479: Sat Aug 8 06:16:18 2026 read: IOPS=8, BW=135KiB/s (139kB/s)(6032KiB/44589msec) clat (msec): min=6, max=272, avg=46.61, stdev=40.57 lat (msec): min=6, max=273, avg=46.61, stdev=40.58 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 40], | 70.00th=[ 49], 80.00th=[ 74], 90.00th=[ 106], 95.00th=[ 138], | 99.00th=[ 178], 99.50th=[ 218], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 30, max= 510, per=26.19%, avg=140.65, stdev=95.10, samples=84 iops : min= 1, max= 31, avg= 7.99, stdev= 6.06, samples=84 write: IOPS=8, BW=140KiB/s (144kB/s)(6256KiB/44589msec); 0 zone resets clat (msec): min=11, max=305, avg=68.44, stdev=49.02 lat (msec): min=11, max=305, avg=68.44, stdev=49.02 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 74], 80.00th=[ 108], 90.00th=[ 144], 95.00th=[ 176], | 99.00th=[ 226], 99.50th=[ 241], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 445, per=24.83%, avg=140.31, stdev=95.12, samples=88 iops : min= 1, max= 27, avg= 7.97, stdev= 6.02, samples=88 lat (msec) : 10=1.43%, 20=13.54%, 50=44.92%, 100=23.70%, 250=16.15% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=1.98%, ctx=1228, 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=537KiB/s (550kB/s), 130KiB/s-141KiB/s (133kB/s-145kB/s), io=23.4MiB (24.5MB), run=44157-44589msec WRITE: bw=565KiB/s (579kB/s), 136KiB/s-148KiB/s (139kB/s-152kB/s), io=24.6MiB (25.8MB), run=44157-44589msec 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=179491: Sat Aug 8 06:16:34 2026 read: IOPS=1, BW=1777KiB/s (1820kB/s)(7168KiB/4034msec) clat (msec): min=109, max=491, avg=241.24, stdev=165.44 lat (msec): min=109, max=491, avg=241.24, stdev=165.44 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 142], 60.00th=[ 218], | 70.00th=[ 218], 80.00th=[ 464], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 2011, max= 6119, per=77.62%, avg=3940.00, stdev=2065.38, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1269KiB/s (1300kB/s)(5120KiB/4034msec); 0 zone resets clat (msec): min=122, max=1028, avg=432.32, stdev=357.03 lat (msec): min=122, max=1028, avg=432.44, stdev=357.01 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 124], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 430], 80.00th=[ 430], 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= 1906, max= 2039, per=28.05%, avg=1993.40, stdev=53.02, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=58.33%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=4.86%, ctx=83, 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=179492: Sat Aug 8 06:16:34 2026 read: IOPS=0, BW=649KiB/s (664kB/s)(2048KiB/3158msec) clat (msec): min=152, max=383, avg=268.32, stdev=163.59 lat (msec): min=152, max=383, avg=268.32, stdev=163.59 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 153], 50.00th=[ 153], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 1799, max= 2019, per=37.61%, avg=1909.00, stdev=155.56, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3243KiB/s (3320kB/s)(10.0MiB/3158msec); 0 zone resets clat (msec): min=146, max=590, avg=249.76, stdev=163.86 lat (msec): min=147, max=590, avg=250.02, stdev=163.78 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 157], | 30.00th=[ 159], 40.00th=[ 161], 50.00th=[ 161], 60.00th=[ 178], | 70.00th=[ 209], 80.00th=[ 215], 90.00th=[ 523], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1799, max= 6119, per=42.00%, avg=2984.83, stdev=1756.11, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 250=75.00%, 500=8.33%, 750=16.67% cpu : usr=0.00%, sys=3.45%, ctx=82, 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=179493: Sat Aug 8 06:16:34 2026 read: IOPS=1, BW=1524KiB/s (1560kB/s)(6144KiB/4032msec) clat (msec): min=111, max=521, avg=318.69, stdev=201.53 lat (msec): min=111, max=521, avg=318.69, stdev=201.53 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 155], 50.00th=[ 155], 60.00th=[ 481], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 2011, max= 4079, per=49.92%, avg=2534.00, stdev=1030.02, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1524KiB/s (1560kB/s)(6144KiB/4032msec); 0 zone resets clat (msec): min=167, max=605, avg=331.54, stdev=176.93 lat (msec): min=167, max=605, avg=331.62, stdev=176.94 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 338], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1906, max= 3710, per=32.83%, avg=2333.20, stdev=771.42, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=25.00% cpu : usr=0.05%, sys=3.40%, ctx=69, 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=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=179494: Sat Aug 8 06:16:34 2026 read: IOPS=1, BW=1498KiB/s (1533kB/s)(5120KiB/3419msec) clat (msec): min=103, max=632, avg=305.57, stdev=235.10 lat (msec): min=103, max=632, avg=305.57, stdev=235.10 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 169], 60.00th=[ 169], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 4039, max= 4079, per=79.96%, avg=4059.00, stdev=28.28, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2097KiB/s (2147kB/s)(7168KiB/3419msec); 0 zone resets clat (msec): min=114, max=655, avg=262.04, stdev=193.38 lat (msec): min=114, max=656, avg=262.30, stdev=193.75 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 150], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 192], 80.00th=[ 380], 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= 2011, max= 5260, per=47.01%, avg=3341.25, stdev=1597.55, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (msec) : 250=66.67%, 500=16.67%, 750=16.67% cpu : usr=0.03%, sys=4.42%, ctx=75, 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=5077KiB/s (5199kB/s), 649KiB/s-1777KiB/s (664kB/s-1820kB/s), io=20.0MiB (20.0MB), run=3158-4034msec WRITE: bw=7108KiB/s (7278kB/s), 1269KiB/s-3243KiB/s (1300kB/s-3320kB/s), io=28.0MiB (29.4MB), run=3158-4034msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179496: Sat Aug 8 06:16:34 2026 read: IOPS=2, BW=2095KiB/s (2145kB/s)(7168KiB/3422msec) clat (msec): min=182, max=532, avg=273.86, stdev=128.42 lat (msec): min=182, max=532, avg=273.86, stdev=128.42 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 197], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 351], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 1528, max= 4063, per=52.21%, avg=2798.00, stdev=1415.92, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1496KiB/s (1532kB/s)(5120KiB/3422msec); 0 zone resets clat (msec): min=217, max=443, avg=299.62, stdev=85.67 lat (msec): min=217, max=443, avg=299.72, stdev=85.67 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 1921, max= 3235, per=30.57%, avg=2293.75, stdev=629.05, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=41.67%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=13.18%, ctx=322, 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=179497: Sat Aug 8 06:16:34 2026 read: IOPS=0, BW=536KiB/s (549kB/s)(2048KiB/3821msec) clat (usec): min=701, max=252701, avg=126701.23, stdev=178190.65 lat (usec): min=702, max=252702, avg=126702.57, stdev=178190.87 clat percentiles (usec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[252707], | 70.00th=[252707], 80.00th=[252707], 90.00th=[252707], 95.00th=[252707], | 99.00th=[252707], 99.50th=[252707], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 1406, max= 1992, per=31.70%, avg=1699.00, stdev=414.36, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2680KiB/s (2744kB/s)(10.0MiB/3821msec); 0 zone resets clat (msec): min=198, max=664, avg=356.53, stdev=148.36 lat (msec): min=198, max=664, avg=356.61, stdev=148.37 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 234], | 30.00th=[ 243], 40.00th=[ 262], 50.00th=[ 275], 60.00th=[ 351], | 70.00th=[ 368], 80.00th=[ 464], 90.00th=[ 510], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1406, max= 3984, per=38.65%, avg=2899.60, stdev=1135.98, samples=5 iops : min= 1, max= 3, avg= 2.20, stdev= 1.10, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=50.00%, 750=16.67% cpu : usr=0.00%, sys=12.62%, ctx=172, 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=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=179498: Sat Aug 8 06:16:34 2026 read: IOPS=1, BW=1749KiB/s (1791kB/s)(6144KiB/3512msec) clat (usec): min=483, max=270568, avg=154459.54, stdev=123947.64 lat (usec): min=484, max=270569, avg=154460.70, stdev=123947.57 clat percentiles (usec): | 1.00th=[ 482], 5.00th=[ 482], 10.00th=[ 482], 20.00th=[ 494], | 30.00th=[ 494], 40.00th=[168821], 50.00th=[168821], 60.00th=[235930], | 70.00th=[250610], 80.00th=[250610], 90.00th=[270533], 95.00th=[270533], | 99.00th=[270533], 99.50th=[270533], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 1992, max= 4055, per=57.73%, avg=3094.00, stdev=1038.70, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1749KiB/s (1791kB/s)(6144KiB/3512msec); 0 zone resets clat (msec): min=205, max=663, avg=429.66, stdev=198.34 lat (msec): min=205, max=663, avg=429.93, stdev=198.52 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 558], | 70.00th=[ 575], 80.00th=[ 575], 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= 1508, max= 3235, per=28.48%, avg=2136.60, stdev=648.27, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=16.67% lat (msec) : 250=33.33%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=10.08%, ctx=166, 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=179499: Sat Aug 8 06:16:34 2026 read: IOPS=1, BW=1498KiB/s (1533kB/s)(5120KiB/3419msec) clat (usec): min=521, max=259650, avg=118585.97, stdev=119183.29 lat (usec): min=523, max=259651, avg=118587.01, stdev=119182.89 clat percentiles (usec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 1221], 40.00th=[ 1221], 50.00th=[116917], 60.00th=[116917], | 70.00th=[214959], 80.00th=[214959], 90.00th=[258999], 95.00th=[258999], | 99.00th=[258999], 99.50th=[258999], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 1992, max= 6083, per=75.34%, avg=4037.50, stdev=2892.77, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2097KiB/s (2147kB/s)(7168KiB/3419msec); 0 zone resets clat (msec): min=211, max=620, avg=402.52, stdev=173.03 lat (msec): min=211, max=620, avg=402.70, stdev=172.93 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 228], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 418], 60.00th=[ 502], | 70.00th=[ 502], 80.00th=[ 584], 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= 1617, max= 3842, per=29.74%, avg=2231.20, stdev=918.81, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=33.33%, 500=25.00%, 750=25.00% cpu : usr=0.03%, sys=12.32%, ctx=161, 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=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=5360KiB/s (5488kB/s), 536KiB/s-2095KiB/s (549kB/s-2145kB/s), io=20.0MiB (20.0MB), run=3419-3821msec WRITE: bw=7504KiB/s (7684kB/s), 1496KiB/s-2680KiB/s (1532kB/s-2744kB/s), io=28.0MiB (29.4MB), run=3419-3821msec 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=179507: Sat Aug 8 06:16:50 2026 read: IOPS=0, BW=3779KiB/s (3869kB/s)(12.0MiB/3252msec) clat (msec): min=742, max=1366, avg=974.20, stdev=341.59 lat (msec): min=742, max=1366, avg=974.20, stdev=341.59 clat percentiles (msec): | 1.00th=[ 743], 5.00th=[ 743], 10.00th=[ 743], 20.00th=[ 743], | 30.00th=[ 743], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7772, max= 8031, per=100.00%, avg=7901.50, stdev=183.14, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.52%, ctx=322, 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=179508: Sat Aug 8 06:16:50 2026 read: IOPS=0, BW=1628KiB/s (1667kB/s)(4096KiB/2516msec) clat (nsec): min=866788k, max=866788k, avg=866787994.00, stdev= 0.00 lat (nsec): min=866791k, max=866791k, avg=866790645.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7641, max= 7641, per=100.00%, avg=7641.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3256KiB/s (3334kB/s)(8192KiB/2516msec); 0 zone resets clat (msec): min=614, max=866, avg=740.56, stdev=177.82 lat (msec): min=615, max=866, avg=740.94, stdev=177.57 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 869], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7772, max= 7772, per=92.23%, avg=7772.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=8.95%, ctx=142, 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=179509: Sat Aug 8 06:16:50 2026 write: IOPS=1, BW=5013KiB/s (5134kB/s)(12.0MiB/2451msec); 0 zone resets clat (msec): min=415, max=1101, avg=755.16, stdev=343.49 lat (msec): min=420, max=1102, avg=758.25, stdev=341.15 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7772, max= 8110, per=94.23%, avg=7941.00, stdev=239.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.53%, ctx=57, 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=179510: Sat Aug 8 06:16:50 2026 write: IOPS=0, BW=3160KiB/s (3236kB/s)(12.0MiB/3888msec); 0 zone resets clat (msec): min=288, max=2689, avg=1228.36, stdev=1282.83 lat (msec): min=289, max=2690, avg=1228.77, stdev=1282.80 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 2702], 80.00th=[ 2702], 90.00th=[ 2702], 95.00th=[ 2702], | 99.00th=[ 2702], 99.50th=[ 2702], 99.90th=[ 2702], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7641, max= 7772, per=91.45%, avg=7706.50, stdev=92.63, 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=0.00%, sys=3.06%, ctx=61, 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=5038KiB/s (5159kB/s), 1628KiB/s-3779KiB/s (1667kB/s-3869kB/s), io=16.0MiB (16.8MB), run=2516-3252msec WRITE: bw=8428KiB/s (8630kB/s), 3160KiB/s-5013KiB/s (3236kB/s-5134kB/s), io=32.0MiB (33.6MB), run=2451-3888msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179511: Sat Aug 8 06:16:50 2026 read: IOPS=0, BW=3173KiB/s (3249kB/s)(12.0MiB/3873msec) clat (msec): min=721, max=2050, avg=1190.03, stdev=746.07 lat (msec): min=721, max=2050, avg=1190.03, stdev=746.07 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 8126, max= 8159, per=100.00%, avg=8142.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.68%, ctx=48, 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=179512: Sat Aug 8 06:16:50 2026 read: IOPS=0, BW=1067KiB/s (1093kB/s)(4096KiB/3838msec) clat (nsec): min=2764.3M, max=2764.3M, avg=2764307181.00, stdev= 0.00 lat (nsec): min=2764.3M, max=2764.3M, avg=2764309516.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2769], 5.00th=[ 2769], 10.00th=[ 2769], 20.00th=[ 2769], | 30.00th=[ 2769], 40.00th=[ 2769], 50.00th=[ 2769], 60.00th=[ 2769], | 70.00th=[ 2769], 80.00th=[ 2769], 90.00th=[ 2769], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] 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=2134KiB/s (2186kB/s)(8192KiB/3838msec); 0 zone resets clat (msec): min=304, max=415, avg=359.83, stdev=78.52 lat (msec): min=304, max=415, avg=360.12, stdev=78.51 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.02%, ctx=62, 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=179513: Sat Aug 8 06:16:50 2026 write: IOPS=0, BW=2840KiB/s (2908kB/s)(12.0MiB/4327msec); 0 zone resets clat (msec): min=175, max=3717, avg=1368.76, stdev=2033.94 lat (msec): min=175, max=3717, avg=1369.11, stdev=2033.85 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 213], 50.00th=[ 213], 60.00th=[ 213], | 70.00th=[ 3708], 80.00th=[ 3708], 90.00th=[ 3708], 95.00th=[ 3708], | 99.00th=[ 3708], 99.50th=[ 3708], 99.90th=[ 3708], 99.95th=[ 3708], | 99.99th=[ 3708] bw ( KiB/s): min=16318, max=16318, per=100.00%, avg=16318.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.22%, ctx=48, 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=179514: Sat Aug 8 06:16:50 2026 write: IOPS=0, BW=3450KiB/s (3533kB/s)(12.0MiB/3562msec); 0 zone resets clat (msec): min=324, max=2675, avg=1143.19, stdev=1328.28 lat (msec): min=325, max=2680, avg=1145.37, stdev=1330.37 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 2668], 80.00th=[ 2668], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 5919, max= 8094, per=92.53%, avg=7006.50, stdev=1537.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.03%, ctx=62, 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=4230KiB/s (4332kB/s), 1067KiB/s-3173KiB/s (1093kB/s-3249kB/s), io=16.0MiB (16.8MB), run=3838-3873msec WRITE: bw=7573KiB/s (7755kB/s), 2134KiB/s-3450KiB/s (2186kB/s-3533kB/s), io=32.0MiB (33.6MB), run=3562-4327msec