== sanity test 398b: DIO and buffer IO race ============== 20:48:19 (1770688099) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.91487 s, 17.3 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=146876: Mon Feb 9 20:49:24 2026 read: IOPS=27, BW=110KiB/s (113kB/s)(5992KiB/54323msec) clat (usec): min=69, max=830641, avg=18005.54, stdev=24057.02 lat (usec): min=69, max=830642, avg=18006.52, stdev=24057.02 clat percentiles (usec): | 1.00th=[ 141], 5.00th=[ 322], 10.00th=[ 6456], 20.00th=[ 9110], | 30.00th=[ 11076], 40.00th=[ 12780], 50.00th=[ 15139], 60.00th=[ 17957], | 70.00th=[ 21103], 80.00th=[ 25297], 90.00th=[ 31851], 95.00th=[ 38011], | 99.00th=[ 58459], 99.50th=[ 69731], 99.90th=[ 99091], 99.95th=[834667], | 99.99th=[834667] bw ( KiB/s): min= 7, max= 183, per=25.53%, avg=110.05, stdev=33.89, samples=108 iops : min= 1, max= 45, avg=27.10, stdev= 8.52, samples=108 write: IOPS=28, BW=116KiB/s (119kB/s)(6296KiB/54323msec); 0 zone resets clat (usec): min=635, max=225924, avg=17217.28, stdev=18097.05 lat (usec): min=636, max=225924, avg=17218.62, stdev=18096.88 clat percentiles (usec): | 1.00th=[ 848], 5.00th=[ 1270], 10.00th=[ 1762], 20.00th=[ 2737], | 30.00th=[ 4555], 40.00th=[ 8848], 50.00th=[ 12780], 60.00th=[ 16712], | 70.00th=[ 21627], 80.00th=[ 28181], 90.00th=[ 39060], 95.00th=[ 49021], | 99.00th=[ 80217], 99.50th=[105382], 99.90th=[168821], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 55, max= 184, per=26.11%, avg=117.75, stdev=29.98, samples=106 iops : min= 13, max= 46, avg=29.04, stdev= 7.53, samples=106 lat (usec) : 100=0.07%, 250=1.76%, 500=1.69%, 750=0.42%, 1000=1.17% lat (msec) : 2=5.18%, 4=8.11%, 10=15.66%, 20=32.45%, 50=30.24% lat (msec) : 100=2.93%, 250=0.29%, 1000=0.03% cpu : usr=0.15%, sys=16.43%, ctx=7343, 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=146877: Mon Feb 9 20:49:24 2026 read: IOPS=26, BW=107KiB/s (110kB/s)(5940KiB/55402msec) clat (usec): min=82, max=102522, avg=17998.49, stdev=12173.11 lat (usec): min=82, max=102524, avg=17999.61, stdev=12173.02 clat percentiles (usec): | 1.00th=[ 141], 5.00th=[ 343], 10.00th=[ 6849], 20.00th=[ 9503], | 30.00th=[ 11338], 40.00th=[ 13173], 50.00th=[ 15795], 60.00th=[ 18220], | 70.00th=[ 21627], 80.00th=[ 25822], 90.00th=[ 32637], 95.00th=[ 38536], | 99.00th=[ 65274], 99.50th=[ 72877], 99.90th=[ 98042], 99.95th=[102237], | 99.99th=[102237] bw ( KiB/s): min= 7, max= 192, per=24.99%, avg=107.69, stdev=31.55, samples=109 iops : min= 1, max= 48, avg=26.51, stdev= 7.89, samples=109 write: IOPS=28, BW=115KiB/s (117kB/s)(6348KiB/55402msec); 0 zone resets clat (usec): min=653, max=800678, avg=17902.07, stdev=25736.54 lat (usec): min=654, max=800679, avg=17903.06, stdev=25736.55 clat percentiles (usec): | 1.00th=[ 865], 5.00th=[ 1254], 10.00th=[ 1926], 20.00th=[ 3064], | 30.00th=[ 5669], 40.00th=[ 9503], 50.00th=[ 13435], 60.00th=[ 17171], | 70.00th=[ 22414], 80.00th=[ 28967], 90.00th=[ 38011], 95.00th=[ 50070], | 99.00th=[ 69731], 99.50th=[ 86508], 99.90th=[189793], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 24, max= 200, per=25.46%, avg=114.83, stdev=35.78, samples=109 iops : min= 6, max= 50, avg=28.30, stdev= 9.01, samples=109 lat (usec) : 100=0.07%, 250=1.79%, 500=1.24%, 750=0.52%, 1000=0.85% lat (msec) : 2=4.52%, 4=7.39%, 10=15.69%, 20=34.15%, 50=30.21% lat (msec) : 100=3.39%, 250=0.16%, 1000=0.03% cpu : usr=0.12%, sys=16.23%, ctx=7595, 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=146879: Mon Feb 9 20:49:24 2026 read: IOPS=27, BW=109KiB/s (112kB/s)(6028KiB/55063msec) clat (usec): min=80, max=821319, avg=18255.40, stdev=24500.07 lat (usec): min=80, max=821321, avg=18256.49, stdev=24500.09 clat percentiles (usec): | 1.00th=[ 127], 5.00th=[ 334], 10.00th=[ 6783], 20.00th=[ 9110], | 30.00th=[ 10814], 40.00th=[ 12518], 50.00th=[ 14877], 60.00th=[ 17433], | 70.00th=[ 20841], 80.00th=[ 25560], 90.00th=[ 32900], 95.00th=[ 39584], | 99.00th=[ 63177], 99.50th=[ 78119], 99.90th=[170918], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 215, per=25.31%, avg=109.09, stdev=36.13, samples=109 iops : min= 1, max= 53, avg=26.86, stdev= 9.10, samples=109 write: IOPS=28, BW=114KiB/s (116kB/s)(6260KiB/55063msec); 0 zone resets clat (usec): min=619, max=152666, avg=17457.05, stdev=16870.38 lat (usec): min=620, max=152668, avg=17458.36, stdev=16870.55 clat percentiles (usec): | 1.00th=[ 906], 5.00th=[ 1303], 10.00th=[ 1942], 20.00th=[ 3032], | 30.00th=[ 5014], 40.00th=[ 9503], 50.00th=[ 13698], 60.00th=[ 17433], | 70.00th=[ 22676], 80.00th=[ 28967], 90.00th=[ 38536], 95.00th=[ 48497], | 99.00th=[ 70779], 99.50th=[ 95945], 99.90th=[147850], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 8, max= 231, per=25.08%, avg=113.13, stdev=35.57, samples=109 iops : min= 2, max= 57, avg=27.89, stdev= 8.89, samples=109 lat (usec) : 100=0.16%, 250=1.63%, 500=1.60%, 750=0.62%, 1000=0.65% lat (msec) : 2=4.75%, 4=7.81%, 10=15.82%, 20=33.27%, 50=30.21% lat (msec) : 100=3.16%, 250=0.29%, 1000=0.03% cpu : usr=0.12%, sys=16.48%, ctx=7562, 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=146881: Mon Feb 9 20:49:24 2026 read: IOPS=27, BW=109KiB/s (111kB/s)(6052KiB/55620msec) clat (usec): min=77, max=119025, avg=17863.47, stdev=12033.86 lat (usec): min=78, max=119026, avg=17864.39, stdev=12033.95 clat percentiles (usec): | 1.00th=[ 133], 5.00th=[ 338], 10.00th=[ 6915], 20.00th=[ 9372], | 30.00th=[ 11076], 40.00th=[ 13173], 50.00th=[ 15533], 60.00th=[ 18482], | 70.00th=[ 21365], 80.00th=[ 25822], 90.00th=[ 32375], 95.00th=[ 40109], | 99.00th=[ 56361], 99.50th=[ 63701], 99.90th=[ 96994], 99.95th=[119014], | 99.99th=[119014] bw ( KiB/s): min= 32, max= 207, per=25.16%, avg=108.44, stdev=34.40, samples=109 iops : min= 8, max= 51, avg=26.71, stdev= 8.71, samples=109 write: IOPS=28, BW=112KiB/s (115kB/s)(6236KiB/55620msec); 0 zone resets clat (usec): min=650, max=751160, avg=18188.11, stdev=26292.25 lat (usec): min=650, max=751161, avg=18189.80, stdev=26291.89 clat percentiles (usec): | 1.00th=[ 857], 5.00th=[ 1237], 10.00th=[ 1893], 20.00th=[ 2966], | 30.00th=[ 4948], 40.00th=[ 10290], 50.00th=[ 13829], 60.00th=[ 17695], | 70.00th=[ 22414], 80.00th=[ 28181], 90.00th=[ 38536], 95.00th=[ 47973], | 99.00th=[ 77071], 99.50th=[108528], 99.90th=[250610], 99.95th=[750781], | 99.99th=[750781] bw ( KiB/s): min= 14, max= 224, per=24.63%, avg=111.07, stdev=35.61, samples=110 iops : min= 3, max= 56, avg=27.36, stdev= 8.96, samples=110 lat (usec) : 100=0.10%, 250=1.37%, 500=1.73%, 750=0.46%, 1000=0.98% lat (msec) : 2=4.72%, 4=7.81%, 10=14.75%, 20=33.92%, 50=30.92% lat (msec) : 100=2.93%, 250=0.26%, 500=0.03%, 1000=0.03% cpu : usr=0.11%, sys=15.97%, ctx=7491, 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=432KiB/s (442kB/s), 107KiB/s-110KiB/s (110kB/s-113kB/s), io=23.4MiB (24.6MB), run=54323-55620msec WRITE: bw=452KiB/s (463kB/s), 112KiB/s-116KiB/s (115kB/s-119kB/s), io=24.6MiB (25.7MB), run=54323-55620msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146875: Mon Feb 9 20:50:09 2026 read: IOPS=14, BW=59.4KiB/s (60.9kB/s)(5992KiB/100805msec) clat (msec): min=2, max=835, avg=15.04, stdev=26.07 lat (msec): min=2, max=835, avg=15.04, stdev=26.07 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 8], 50.00th=[ 9], 60.00th=[ 11], | 70.00th=[ 14], 80.00th=[ 21], 90.00th=[ 32], 95.00th=[ 45], | 99.00th=[ 80], 99.50th=[ 96], 99.90th=[ 146], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 175, per=25.26%, avg=59.87, stdev=35.91, samples=197 iops : min= 1, max= 43, avg=14.59, stdev= 9.04, samples=197 write: IOPS=15, BW=62.5KiB/s (63.0kB/s)(6296KiB/100805msec); 0 zone resets clat (msec): min=14, max=240, avg=49.58, stdev=25.05 lat (msec): min=14, max=240, avg=49.59, stdev=25.05 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 43], 60.00th=[ 50], | 70.00th=[ 57], 80.00th=[ 68], 90.00th=[ 82], 95.00th=[ 97], | 99.00th=[ 127], 99.50th=[ 150], 99.90th=[ 236], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 15, max= 128, per=25.24%, avg=62.60, stdev=28.45, samples=198 iops : min= 3, max= 32, avg=15.27, stdev= 7.19, samples=198 lat (msec) : 4=1.11%, 10=27.25%, 20=11.72%, 50=38.54%, 100=18.98% lat (msec) : 250=2.38%, 1000=0.03% cpu : usr=0.06%, sys=3.85%, ctx=5516, 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=146878: Mon Feb 9 20:50:09 2026 read: IOPS=14, BW=58.6KiB/s (60.1kB/s)(5940KiB/101283msec) clat (msec): min=3, max=763, avg=14.90, stdev=25.53 lat (msec): min=3, max=763, avg=14.90, stdev=25.53 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 8], 50.00th=[ 9], 60.00th=[ 11], | 70.00th=[ 14], 80.00th=[ 20], 90.00th=[ 32], 95.00th=[ 44], | 99.00th=[ 80], 99.50th=[ 92], 99.90th=[ 224], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 208, per=24.77%, avg=58.71, stdev=38.18, samples=199 iops : min= 1, max= 52, avg=14.30, stdev= 9.61, samples=199 write: IOPS=15, BW=62.7KiB/s (64.2kB/s)(6348KiB/101283msec); 0 zone resets clat (msec): min=14, max=220, avg=49.73, stdev=26.53 lat (msec): min=14, max=220, avg=49.73, stdev=26.53 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 34], 40.00th=[ 38], 50.00th=[ 43], 60.00th=[ 49], | 70.00th=[ 57], 80.00th=[ 68], 90.00th=[ 85], 95.00th=[ 102], | 99.00th=[ 142], 99.50th=[ 163], 99.90th=[ 211], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 7, max= 127, per=25.23%, avg=62.57, stdev=29.18, samples=199 iops : min= 1, max= 31, avg=15.27, stdev= 7.37, samples=199 lat (msec) : 4=1.14%, 10=27.60%, 20=11.85%, 50=37.60%, 100=18.85% lat (msec) : 250=2.93%, 1000=0.03% cpu : usr=0.07%, sys=3.74%, ctx=5538, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146880: Mon Feb 9 20:50:09 2026 read: IOPS=14, BW=59.6KiB/s (61.0kB/s)(6028KiB/101155msec) clat (msec): min=2, max=210, avg=14.70, stdev=16.36 lat (msec): min=2, max=210, avg=14.70, stdev=16.36 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 8], 50.00th=[ 9], 60.00th=[ 11], | 70.00th=[ 14], 80.00th=[ 21], 90.00th=[ 32], 95.00th=[ 42], | 99.00th=[ 78], 99.50th=[ 89], 99.90th=[ 207], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 7, max= 160, per=25.25%, avg=59.84, stdev=35.74, samples=199 iops : min= 1, max= 40, avg=14.58, stdev= 9.00, samples=199 write: IOPS=15, BW=61.9KiB/s (63.4kB/s)(6260KiB/101155msec); 0 zone resets clat (msec): min=14, max=781, avg=50.34, stdev=32.22 lat (msec): min=14, max=781, avg=50.34, stdev=32.22 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 30], | 30.00th=[ 34], 40.00th=[ 38], 50.00th=[ 43], 60.00th=[ 49], | 70.00th=[ 57], 80.00th=[ 68], 90.00th=[ 86], 95.00th=[ 101], | 99.00th=[ 138], 99.50th=[ 153], 99.90th=[ 292], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 128, per=24.88%, avg=61.69, stdev=29.79, samples=200 iops : min= 1, max= 32, avg=15.04, stdev= 7.52, samples=200 lat (msec) : 4=1.11%, 10=26.30%, 20=12.53%, 50=39.26%, 100=17.97% lat (msec) : 250=2.77%, 500=0.03%, 1000=0.03% cpu : usr=0.09%, sys=3.75%, ctx=5483, 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=146882: Mon Feb 9 20:50:09 2026 read: IOPS=15, BW=60.1KiB/s (61.5kB/s)(6052KiB/100776msec) clat (msec): min=3, max=207, avg=14.59, stdev=15.93 lat (msec): min=3, max=207, avg=14.59, stdev=15.93 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 8], 50.00th=[ 9], 60.00th=[ 11], | 70.00th=[ 14], 80.00th=[ 20], 90.00th=[ 33], 95.00th=[ 46], | 99.00th=[ 82], 99.50th=[ 94], 99.90th=[ 163], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 7, max= 160, per=25.60%, avg=60.68, stdev=35.53, samples=196 iops : min= 1, max= 40, avg=14.80, stdev= 8.97, samples=196 write: IOPS=15, BW=61.9KiB/s (63.4kB/s)(6236KiB/100776msec); 0 zone resets clat (msec): min=15, max=793, avg=50.33, stdev=31.89 lat (msec): min=15, max=793, avg=50.33, stdev=31.89 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 39], 50.00th=[ 43], 60.00th=[ 49], | 70.00th=[ 56], 80.00th=[ 68], 90.00th=[ 85], 95.00th=[ 100], | 99.00th=[ 136], 99.50th=[ 161], 99.90th=[ 292], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 15, max= 136, per=24.86%, avg=61.64, stdev=28.42, samples=199 iops : min= 3, max= 34, avg=15.03, stdev= 7.18, samples=199 lat (msec) : 4=1.30%, 10=27.34%, 20=12.01%, 50=38.64%, 100=18.10% lat (msec) : 250=2.54%, 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=3.78%, ctx=5527, 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=237KiB/s (243kB/s), 58.6KiB/s-60.1KiB/s (60.1kB/s-61.5kB/s), io=23.4MiB (24.6MB), run=100776-101283msec WRITE: bw=248KiB/s (254kB/s), 61.9KiB/s-62.7KiB/s (63.4kB/s-64.2kB/s), io=24.6MiB (25.7MB), run=100776-101283msec 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=146910: Mon Feb 9 20:50:26 2026 read: IOPS=34, BW=544KiB/s (557kB/s)(5920KiB/10877msec) clat (usec): min=104, max=93632, avg=14620.85, stdev=11203.62 lat (usec): min=104, max=93633, avg=14621.80, stdev=11203.44 clat percentiles (usec): | 1.00th=[ 139], 5.00th=[ 277], 10.00th=[ 334], 20.00th=[ 5473], | 30.00th=[10421], 40.00th=[12125], 50.00th=[14222], 60.00th=[16319], | 70.00th=[18482], 80.00th=[21627], 90.00th=[25297], 95.00th=[30278], | 99.00th=[67634], 99.50th=[85459], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 352, max= 764, per=25.42%, avg=542.52, stdev=132.64, samples=21 iops : min= 22, max= 47, avg=33.48, stdev= 8.37, samples=21 write: IOPS=36, BW=585KiB/s (600kB/s)(6368KiB/10877msec); 0 zone resets clat (usec): min=988, max=126010, avg=13658.20, stdev=12355.46 lat (usec): min=989, max=126011, avg=13661.36, stdev=12355.01 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 2278], 10.00th=[ 3064], 20.00th=[ 4080], | 30.00th=[ 5145], 40.00th=[ 6980], 50.00th=[ 9765], 60.00th=[ 13435], | 70.00th=[ 16909], 80.00th=[ 22938], 90.00th=[ 28705], 95.00th=[ 35914], | 99.00th=[ 50594], 99.50th=[ 56361], 99.90th=[126354], 99.95th=[126354], | 99.99th=[126354] bw ( KiB/s): min= 416, max= 764, per=26.24%, avg=589.19, stdev=94.62, samples=21 iops : min= 26, max= 47, avg=36.38, stdev= 5.87, samples=21 lat (usec) : 250=1.69%, 500=5.99%, 750=0.65%, 1000=0.26% lat (msec) : 2=2.08%, 4=7.94%, 10=21.48%, 20=34.77%, 50=24.09% lat (msec) : 100=0.91%, 250=0.13% cpu : usr=0.17%, sys=25.04%, ctx=2100, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146911: Mon Feb 9 20:50:26 2026 read: IOPS=32, BW=513KiB/s (525kB/s)(5744KiB/11200msec) clat (usec): min=106, max=94926, avg=15623.92, stdev=10965.62 lat (usec): min=107, max=94926, avg=15624.71, stdev=10965.64 clat percentiles (usec): | 1.00th=[ 135], 5.00th=[ 262], 10.00th=[ 371], 20.00th=[ 8586], | 30.00th=[11731], 40.00th=[13173], 50.00th=[15270], 60.00th=[16909], | 70.00th=[19530], 80.00th=[22414], 90.00th=[27657], 95.00th=[30802], | 99.00th=[39060], 99.50th=[91751], 99.90th=[94897], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 349, max= 672, per=24.09%, avg=514.14, stdev=101.05, samples=22 iops : min= 21, max= 42, avg=31.68, stdev= 6.37, samples=22 write: IOPS=36, BW=584KiB/s (598kB/s)(6544KiB/11200msec); 0 zone resets clat (usec): min=927, max=79633, avg=13528.79, stdev=11901.52 lat (usec): min=928, max=79635, avg=13531.07, stdev=11901.29 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 2057], 10.00th=[ 2966], 20.00th=[ 3687], | 30.00th=[ 4621], 40.00th=[ 6521], 50.00th=[10421], 60.00th=[13829], | 70.00th=[17433], 80.00th=[22676], 90.00th=[28443], 95.00th=[35390], | 99.00th=[52167], 99.50th=[70779], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 317, max= 864, per=26.06%, avg=584.95, stdev=128.30, samples=22 iops : min= 19, max= 54, avg=36.14, stdev= 8.07, samples=22 lat (usec) : 250=2.08%, 500=4.43%, 750=0.26%, 1000=0.52% lat (msec) : 2=2.21%, 4=10.03%, 10=18.36%, 20=36.20%, 50=24.87% lat (msec) : 100=1.04% cpu : usr=0.15%, sys=25.23%, ctx=2058, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146912: Mon Feb 9 20:50:26 2026 read: IOPS=34, BW=557KiB/s (571kB/s)(6256KiB/11222msec) clat (usec): min=133, max=63403, avg=14940.03, stdev=10023.08 lat (usec): min=133, max=63404, avg=14940.93, stdev=10023.15 clat percentiles (usec): | 1.00th=[ 141], 5.00th=[ 293], 10.00th=[ 375], 20.00th=[ 7701], | 30.00th=[10421], 40.00th=[11994], 50.00th=[14353], 60.00th=[16909], | 70.00th=[19006], 80.00th=[23200], 90.00th=[27132], 95.00th=[29230], | 99.00th=[51119], 99.50th=[62653], 99.90th=[63177], 99.95th=[63177], | 99.99th=[63177] bw ( KiB/s): min= 319, max= 798, per=26.33%, avg=561.86, stdev=138.08, samples=22 iops : min= 19, max= 49, avg=34.68, stdev= 8.64, samples=22 write: IOPS=33, BW=538KiB/s (550kB/s)(6032KiB/11222msec); 0 zone resets clat (usec): min=1154, max=81224, avg=14101.50, stdev=12628.84 lat (usec): min=1156, max=81224, avg=14103.22, stdev=12628.83 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 2073], 10.00th=[ 2900], 20.00th=[ 4015], | 30.00th=[ 5080], 40.00th=[ 7439], 50.00th=[10683], 60.00th=[14484], | 70.00th=[16909], 80.00th=[21365], 90.00th=[30278], 95.00th=[39584], | 99.00th=[61080], 99.50th=[77071], 99.90th=[81265], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 319, max= 736, per=23.66%, avg=531.18, stdev=110.19, samples=22 iops : min= 19, max= 46, avg=32.77, stdev= 6.95, samples=22 lat (usec) : 250=1.95%, 500=4.69%, 750=1.04%, 1000=0.13% lat (msec) : 2=2.73%, 4=7.68%, 10=19.27%, 20=37.63%, 50=23.44% lat (msec) : 100=1.43% cpu : usr=0.18%, sys=24.64%, ctx=2086, 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=146913: Mon Feb 9 20:50:26 2026 read: IOPS=34, BW=548KiB/s (561kB/s)(6032KiB/11015msec) clat (usec): min=89, max=66320, avg=15174.41, stdev=10949.85 lat (usec): min=90, max=66321, avg=15180.19, stdev=10953.81 clat percentiles (usec): | 1.00th=[ 110], 5.00th=[ 210], 10.00th=[ 314], 20.00th=[ 7308], | 30.00th=[10290], 40.00th=[12387], 50.00th=[14484], 60.00th=[16909], | 70.00th=[19530], 80.00th=[22938], 90.00th=[28181], 95.00th=[34866], | 99.00th=[50070], 99.50th=[56361], 99.90th=[66323], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 317, max= 736, per=25.52%, avg=544.52, stdev=123.02, samples=21 iops : min= 19, max= 46, avg=33.57, stdev= 7.65, samples=21 write: IOPS=35, BW=568KiB/s (582kB/s)(6256KiB/11015msec); 0 zone resets clat (usec): min=1114, max=81257, avg=13407.95, stdev=11822.88 lat (usec): min=1115, max=81257, avg=13409.44, stdev=11822.93 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1876], 10.00th=[ 2704], 20.00th=[ 3752], | 30.00th=[ 4817], 40.00th=[ 6390], 50.00th=[ 9503], 60.00th=[13566], | 70.00th=[16909], 80.00th=[22676], 90.00th=[28705], 95.00th=[34866], | 99.00th=[56886], 99.50th=[66323], 99.90th=[81265], 99.95th=[81265], | 99.99th=[81265] bw ( KiB/s): min= 288, max= 768, per=25.50%, avg=572.38, stdev=100.88, samples=21 iops : min= 18, max= 48, avg=35.33, stdev= 6.35, samples=21 lat (usec) : 100=0.26%, 250=2.73%, 500=5.60%, 750=0.52%, 1000=0.26% lat (msec) : 2=2.99%, 4=8.72%, 10=19.01%, 20=33.20%, 50=25.52% lat (msec) : 100=1.17% cpu : usr=0.17%, sys=24.61%, ctx=2053, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2134KiB/s (2186kB/s), 513KiB/s-557KiB/s (525kB/s-571kB/s), io=23.4MiB (24.5MB), run=10877-11222msec WRITE: bw=2246KiB/s (2299kB/s), 538KiB/s-585KiB/s (550kB/s-600kB/s), io=24.6MiB (25.8MB), run=10877-11222msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146915: Mon Feb 9 20:50:37 2026 read: IOPS=16, BW=259KiB/s (265kB/s)(5920KiB/22847msec) clat (usec): min=3487, max=96213, avg=16376.21, stdev=13602.31 lat (usec): min=3488, max=96214, avg=16377.44, stdev=13602.42 clat percentiles (usec): | 1.00th=[ 3785], 5.00th=[ 4555], 10.00th=[ 5342], 20.00th=[ 6521], | 30.00th=[ 7767], 40.00th=[ 9372], 50.00th=[11600], 60.00th=[14615], | 70.00th=[19268], 80.00th=[22938], 90.00th=[32375], 95.00th=[44303], | 99.00th=[64750], 99.50th=[87557], 99.90th=[95945], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 63, max= 480, per=24.36%, avg=255.24, stdev=95.15, samples=45 iops : min= 3, max= 30, avg=15.51, stdev= 6.16, samples=45 write: IOPS=17, BW=279KiB/s (285kB/s)(6368KiB/22847msec); 0 zone resets clat (msec): min=15, max=145, avg=42.11, stdev=20.76 lat (msec): min=15, max=145, avg=42.11, stdev=20.76 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 30], 40.00th=[ 33], 50.00th=[ 36], 60.00th=[ 40], | 70.00th=[ 47], 80.00th=[ 56], 90.00th=[ 71], 95.00th=[ 84], | 99.00th=[ 111], 99.50th=[ 136], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 95, max= 544, per=25.19%, avg=277.58, stdev=121.42, samples=45 iops : min= 5, max= 34, avg=16.91, stdev= 7.80, samples=45 lat (msec) : 4=0.78%, 10=19.92%, 20=16.02%, 50=48.96%, 100=13.02% lat (msec) : 250=1.30% cpu : usr=0.06%, sys=5.94%, ctx=1598, 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=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=146916: Mon Feb 9 20:50:37 2026 read: IOPS=15, BW=252KiB/s (258kB/s)(5744KiB/22770msec) clat (msec): min=3, max=141, avg=16.21, stdev=14.60 lat (msec): min=3, max=141, avg=16.21, stdev=14.60 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 7], 40.00th=[ 9], 50.00th=[ 12], 60.00th=[ 15], | 70.00th=[ 20], 80.00th=[ 24], 90.00th=[ 31], 95.00th=[ 47], | 99.00th=[ 70], 99.50th=[ 85], 99.90th=[ 142], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 52, max= 576, per=24.01%, avg=251.67, stdev=131.49, samples=45 iops : min= 3, max= 36, avg=15.29, stdev= 8.39, samples=45 write: IOPS=17, BW=287KiB/s (294kB/s)(6544KiB/22770msec); 0 zone resets clat (msec): min=16, max=137, avg=41.32, stdev=18.46 lat (msec): min=16, max=137, avg=41.32, stdev=18.46 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 28], | 30.00th=[ 31], 40.00th=[ 33], 50.00th=[ 36], 60.00th=[ 41], | 70.00th=[ 46], 80.00th=[ 53], 90.00th=[ 69], 95.00th=[ 81], | 99.00th=[ 100], 99.50th=[ 107], 99.90th=[ 138], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 95, max= 480, per=26.00%, avg=286.53, stdev=108.25, samples=45 iops : min= 5, max= 30, avg=17.47, stdev= 7.00, samples=45 lat (msec) : 4=0.52%, 10=19.14%, 20=15.89%, 50=49.61%, 100=14.19% lat (msec) : 250=0.65% cpu : usr=0.07%, sys=6.02%, ctx=1609, 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=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=146917: Mon Feb 9 20:50:37 2026 read: IOPS=17, BW=280KiB/s (287kB/s)(6256KiB/22317msec) clat (msec): min=3, max=128, avg=16.34, stdev=15.02 lat (msec): min=3, max=128, avg=16.34, stdev=15.02 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 15], | 70.00th=[ 18], 80.00th=[ 23], 90.00th=[ 34], 95.00th=[ 48], | 99.00th=[ 85], 99.50th=[ 96], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 95, max= 608, per=26.94%, avg=282.30, stdev=136.89, samples=44 iops : min= 5, max= 38, avg=17.18, stdev= 8.77, samples=44 write: IOPS=16, BW=270KiB/s (277kB/s)(6032KiB/22317msec); 0 zone resets clat (msec): min=17, max=128, avg=42.12, stdev=17.78 lat (msec): min=17, max=128, avg=42.13, stdev=17.78 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 23], 10.00th=[ 25], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 35], 50.00th=[ 38], 60.00th=[ 42], | 70.00th=[ 47], 80.00th=[ 54], 90.00th=[ 67], 95.00th=[ 81], | 99.00th=[ 102], 99.50th=[ 107], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 63, max= 448, per=24.43%, avg=269.23, stdev=100.15, samples=44 iops : min= 3, max= 28, avg=16.36, stdev= 6.48, samples=44 lat (msec) : 4=0.65%, 10=21.88%, 20=16.67%, 50=45.44%, 100=14.71% lat (msec) : 250=0.65% cpu : usr=0.09%, sys=6.23%, ctx=1600, 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=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=146918: Mon Feb 9 20:50:37 2026 read: IOPS=16, BW=266KiB/s (273kB/s)(6032KiB/22651msec) clat (msec): min=3, max=116, avg=16.71, stdev=15.79 lat (msec): min=3, max=116, avg=16.71, stdev=15.79 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 15], | 70.00th=[ 18], 80.00th=[ 23], 90.00th=[ 39], 95.00th=[ 51], | 99.00th=[ 75], 99.50th=[ 117], 99.90th=[ 117], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 31, max= 606, per=24.95%, avg=261.45, stdev=135.87, samples=44 iops : min= 1, max= 37, avg=15.89, stdev= 8.66, samples=44 write: IOPS=17, BW=276KiB/s (283kB/s)(6256KiB/22651msec); 0 zone resets clat (msec): min=17, max=134, avg=41.60, stdev=18.51 lat (msec): min=17, max=134, avg=41.60, stdev=18.51 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 23], 10.00th=[ 25], 20.00th=[ 28], | 30.00th=[ 31], 40.00th=[ 34], 50.00th=[ 37], 60.00th=[ 41], | 70.00th=[ 46], 80.00th=[ 54], 90.00th=[ 68], 95.00th=[ 79], | 99.00th=[ 104], 99.50th=[ 129], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 127, max= 480, per=24.89%, avg=274.27, stdev=107.10, samples=44 iops : min= 7, max= 30, avg=16.68, stdev= 6.92, samples=44 lat (msec) : 4=0.52%, 10=21.61%, 20=15.89%, 50=47.01%, 100=14.06% lat (msec) : 250=0.91% cpu : usr=0.10%, sys=6.13%, ctx=1630, 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=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=1048KiB/s (1074kB/s), 252KiB/s-280KiB/s (258kB/s-287kB/s), io=23.4MiB (24.5MB), run=22317-22847msec WRITE: bw=1103KiB/s (1129kB/s), 270KiB/s-287KiB/s (277kB/s-294kB/s), io=24.6MiB (25.8MB), run=22317-22847msec 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=146931: Mon Feb 9 20:50:46 2026 read: IOPS=3, BW=3767KiB/s (3857kB/s)(7168KiB/1903msec) clat (msec): min=50, max=183, avg=95.92, stdev=46.90 lat (msec): min=50, max=183, avg=95.92, stdev=46.90 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 51], 10.00th=[ 51], 20.00th=[ 52], | 30.00th=[ 68], 40.00th=[ 68], 50.00th=[ 93], 60.00th=[ 110], | 70.00th=[ 110], 80.00th=[ 117], 90.00th=[ 184], 95.00th=[ 184], | 99.00th=[ 184], 99.50th=[ 184], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] bw ( KiB/s): min= 4096, max= 5215, per=69.13%, avg=4655.50, stdev=791.25, samples=2 iops : min= 4, max= 5, avg= 4.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2690KiB/s (2755kB/s)(5120KiB/1903msec); 0 zone resets clat (msec): min=87, max=376, avg=240.96, stdev=119.46 lat (msec): min=87, max=376, avg=241.03, stdev=119.47 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 88], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 207], 60.00th=[ 207], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 2048, max= 5988, per=42.62%, avg=4018.00, stdev=2786.00, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 lat (msec) : 100=41.67%, 250=41.67%, 500=16.67% cpu : usr=0.00%, sys=15.88%, ctx=76, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146932: Mon Feb 9 20:50:46 2026 read: IOPS=0, BW=679KiB/s (695kB/s)(2048KiB/3018msec) clat (msec): min=140, max=162, avg=151.65, stdev=15.82 lat (msec): min=140, max=162, avg=151.65, stdev=15.82 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 163], | 70.00th=[ 163], 80.00th=[ 163], 90.00th=[ 163], 95.00th=[ 163], | 99.00th=[ 163], 99.50th=[ 163], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 1744, max= 2003, per=27.82%, avg=1873.50, stdev=183.14, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3393KiB/s (3474kB/s)(10.0MiB/3018msec); 0 zone resets clat (msec): min=103, max=532, avg=264.18, stdev=163.75 lat (msec): min=103, max=532, avg=264.25, stdev=163.75 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 109], | 30.00th=[ 127], 40.00th=[ 128], 50.00th=[ 190], 60.00th=[ 239], | 70.00th=[ 305], 80.00th=[ 456], 90.00th=[ 460], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 2015, max= 6011, per=37.30%, avg=3516.50, stdev=1902.60, samples=4 iops : min= 1, max= 5, avg= 2.75, stdev= 1.71, samples=4 lat (msec) : 250=66.67%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=15.25%, ctx=374, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146933: Mon Feb 9 20:50:46 2026 read: IOPS=2, BW=2168KiB/s (2220kB/s)(6144KiB/2834msec) clat (msec): min=53, max=372, avg=199.02, stdev=136.85 lat (msec): min=53, max=372, avg=199.02, stdev=136.85 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 54], 10.00th=[ 54], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 124], 50.00th=[ 124], 60.00th=[ 167], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 3992, max= 4007, per=59.39%, avg=3999.50, stdev=10.61, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2168KiB/s (2220kB/s)(6144KiB/2834msec); 0 zone resets clat (msec): min=63, max=466, avg=259.79, stdev=174.65 lat (msec): min=63, max=466, avg=259.87, stdev=174.66 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 67], | 30.00th=[ 67], 40.00th=[ 228], 50.00th=[ 228], 60.00th=[ 296], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 1744, max= 4096, per=26.14%, avg=2464.50, stdev=1094.83, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 100=25.00%, 250=33.33%, 500=41.67% cpu : usr=0.04%, sys=11.44%, ctx=97, 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=146934: Mon Feb 9 20:50:46 2026 read: IOPS=1, BW=1684KiB/s (1724kB/s)(5120KiB/3041msec) clat (msec): min=19, max=324, avg=125.71, stdev=118.82 lat (msec): min=19, max=324, avg=125.71, stdev=118.82 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 20], 10.00th=[ 20], 20.00th=[ 20], | 30.00th=[ 64], 40.00th=[ 64], 50.00th=[ 87], 60.00th=[ 87], | 70.00th=[ 134], 80.00th=[ 134], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 6011, max= 6011, per=89.26%, avg=6011.00, stdev= 0.00, samples=1 iops : min= 5, max= 5, avg= 5.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2357KiB/s (2414kB/s)(7168KiB/3041msec); 0 zone resets clat (msec): min=77, max=938, avg=329.31, stdev=291.77 lat (msec): min=77, max=939, avg=329.41, stdev=291.80 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 96], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 241], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 376], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 1996, max= 4031, per=28.55%, avg=2691.67, stdev=1160.19, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 20=8.33%, 100=33.33%, 250=25.00%, 500=25.00%, 1000=8.33% cpu : usr=0.00%, sys=15.26%, ctx=117, 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=6735KiB/s (6896kB/s), 679KiB/s-3767KiB/s (695kB/s-3857kB/s), io=20.0MiB (20.0MB), run=1903-3041msec WRITE: bw=9428KiB/s (9655kB/s), 2168KiB/s-3393KiB/s (2220kB/s-3474kB/s), io=28.0MiB (29.4MB), run=1903-3041msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146935: Mon Feb 9 20:50:46 2026 read: IOPS=3, BW=3306KiB/s (3386kB/s)(7168KiB/2168msec) clat (usec): min=920, max=186464, avg=103087.27, stdev=73814.82 lat (usec): min=921, max=186465, avg=103088.45, stdev=73814.92 clat percentiles (usec): | 1.00th=[ 922], 5.00th=[ 922], 10.00th=[ 922], 20.00th=[ 9372], | 30.00th=[ 98042], 40.00th=[ 98042], 50.00th=[108528], 60.00th=[149947], | 70.00th=[149947], 80.00th=[168821], 90.00th=[185598], 95.00th=[185598], | 99.00th=[185598], 99.50th=[185598], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 2048, max= 5180, per=52.03%, avg=3719.33, stdev=1576.59, samples=3 iops : min= 2, max= 5, avg= 3.33, stdev= 1.53, samples=3 write: IOPS=2, BW=2362KiB/s (2418kB/s)(5120KiB/2168msec); 0 zone resets clat (msec): min=146, max=430, avg=277.40, stdev=113.95 lat (msec): min=146, max=430, avg=277.46, stdev=113.95 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 146], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 1965, max= 4096, per=27.01%, avg=2703.00, stdev=1207.09, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (usec) : 1000=8.33% lat (msec) : 10=8.33%, 100=8.33%, 250=50.00%, 500=25.00% cpu : usr=0.00%, sys=42.82%, ctx=851, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146936: Mon Feb 9 20:50:46 2026 read: IOPS=0, BW=715KiB/s (732kB/s)(2048KiB/2865msec) clat (usec): min=865, max=106126, avg=53496.39, stdev=74430.83 lat (usec): min=866, max=106129, avg=53497.94, stdev=74431.68 clat percentiles (usec): | 1.00th=[ 865], 5.00th=[ 865], 10.00th=[ 865], 20.00th=[ 865], | 30.00th=[ 865], 40.00th=[ 865], 50.00th=[ 865], 60.00th=[106431], | 70.00th=[106431], 80.00th=[106431], 90.00th=[106431], 95.00th=[106431], | 99.00th=[106431], 99.50th=[106431], 99.90th=[106431], 99.95th=[106431], | 99.99th=[106431] bw ( KiB/s): min= 1712, max= 2048, per=26.30%, avg=1880.00, stdev=237.59, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=3, BW=3574KiB/s (3660kB/s)(10.0MiB/2865msec); 0 zone resets clat (msec): min=121, max=629, avg=273.05, stdev=155.55 lat (msec): min=121, max=629, avg=273.11, stdev=155.54 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 129], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 194], 60.00th=[ 259], | 70.00th=[ 292], 80.00th=[ 321], 90.00th=[ 418], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1712, max= 6131, per=39.64%, avg=3967.25, stdev=1806.09, samples=4 iops : min= 1, max= 5, avg= 3.25, stdev= 1.71, samples=4 lat (usec) : 1000=8.33% lat (msec) : 250=50.00%, 500=33.33%, 750=8.33% cpu : usr=0.07%, sys=36.59%, ctx=276, 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=146937: Mon Feb 9 20:50:46 2026 read: IOPS=2, BW=2738KiB/s (2804kB/s)(6144KiB/2244msec) clat (usec): min=671, max=157921, avg=75086.67, stdev=79891.13 lat (usec): min=672, max=157922, avg=75087.69, stdev=79890.92 clat percentiles (usec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 930], | 30.00th=[ 930], 40.00th=[ 6259], 50.00th=[ 6259], 60.00th=[131597], | 70.00th=[154141], 80.00th=[154141], 90.00th=[158335], 95.00th=[158335], | 99.00th=[158335], 99.50th=[158335], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 4096, max= 6144, per=71.63%, avg=5120.00, stdev=1448.15, samples=2 iops : min= 4, max= 6, avg= 5.00, stdev= 1.41, samples=2 write: IOPS=2, BW=2738KiB/s (2804kB/s)(6144KiB/2244msec); 0 zone resets clat (msec): min=177, max=437, avg=280.99, stdev=97.51 lat (msec): min=177, max=437, avg=281.05, stdev=97.52 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 268], 50.00th=[ 268], 60.00th=[ 305], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 1715, max= 4096, per=24.54%, avg=2456.00, stdev=1102.46, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 10=8.33%, 250=41.67%, 500=33.33% cpu : usr=0.00%, sys=42.89%, ctx=671, 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=146938: Mon Feb 9 20:50:46 2026 read: IOPS=2, BW=2151KiB/s (2203kB/s)(5120KiB/2380msec) clat (usec): min=650, max=154111, avg=84282.64, stdev=77519.17 lat (usec): min=651, max=154111, avg=84283.67, stdev=77518.90 clat percentiles (usec): | 1.00th=[ 652], 5.00th=[ 652], 10.00th=[ 652], 20.00th=[ 652], | 30.00th=[ 857], 40.00th=[ 857], 50.00th=[116917], 60.00th=[116917], | 70.00th=[147850], 80.00th=[147850], 90.00th=[154141], 95.00th=[154141], | 99.00th=[154141], 99.50th=[154141], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 2048, max= 6144, per=57.30%, avg=4096.00, stdev=2896.31, samples=2 iops : min= 2, max= 6, avg= 4.00, stdev= 2.83, samples=2 write: IOPS=2, BW=3012KiB/s (3084kB/s)(7168KiB/2380msec); 0 zone resets clat (msec): min=144, max=406, avg=270.72, stdev=89.47 lat (msec): min=144, max=406, avg=270.78, stdev=89.48 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 218], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 243], 60.00th=[ 279], | 70.00th=[ 279], 80.00th=[ 368], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 1738, max= 3930, per=24.39%, avg=2441.00, stdev=1003.37, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 250=58.33%, 500=25.00% cpu : usr=0.00%, sys=38.21%, ctx=132, 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=7148KiB/s (7320kB/s), 715KiB/s-3306KiB/s (732kB/s-3386kB/s), io=20.0MiB (20.0MB), run=2168-2865msec WRITE: bw=9.77MiB/s (10.2MB/s), 2362KiB/s-3574KiB/s (2418kB/s-3660kB/s), io=28.0MiB (29.4MB), run=2168-2865msec 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=146944: Mon Feb 9 20:50:54 2026 read: IOPS=1, BW=5224KiB/s (5350kB/s)(12.0MiB/2352msec) clat (msec): min=493, max=1242, avg=761.91, stdev=416.75 lat (msec): min=493, max=1242, avg=761.91, stdev=416.75 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] 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%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=27.82%, ctx=1193, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146945: Mon Feb 9 20:50:54 2026 read: IOPS=0, BW=1420KiB/s (1454kB/s)(4096KiB/2884msec) clat (nsec): min=361361k, max=361361k, avg=361360653.00, stdev= 0.00 lat (nsec): min=361363k, max=361363k, avg=361363041.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2840KiB/s (2909kB/s)(8192KiB/2884msec); 0 zone resets clat (msec): min=761, max=1733, avg=1247.44, stdev=687.55 lat (msec): min=761, max=1733, avg=1247.71, stdev=687.52 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 1737], | 70.00th=[ 1737], 80.00th=[ 1737], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 8175, max= 8175, per=76.15%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=13.15%, ctx=606, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146947: Mon Feb 9 20:50:54 2026 write: IOPS=0, BW=4026KiB/s (4123kB/s)(12.0MiB/3052msec); 0 zone resets clat (msec): min=136, max=2274, avg=1009.59, stdev=1121.48 lat (msec): min=136, max=2274, avg=1009.84, stdev=1121.44 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 138], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 2265], 80.00th=[ 2265], 90.00th=[ 2265], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 8175, max= 8175, per=76.15%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=6.42%, ctx=145, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146949: Mon Feb 9 20:50:54 2026 write: IOPS=1, BW=5065KiB/s (5187kB/s)(12.0MiB/2426msec); 0 zone resets clat (msec): min=309, max=1425, avg=802.36, stdev=569.01 lat (msec): min=310, max=1425, avg=802.64, stdev=569.10 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 8175, max= 8192, per=76.22%, 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%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=12.04%, ctx=85, 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=5681KiB/s (5817kB/s), 1420KiB/s-5224KiB/s (1454kB/s-5350kB/s), io=16.0MiB (16.8MB), run=2352-2884msec WRITE: bw=10.5MiB/s (10.0MB/s), 2840KiB/s-5065KiB/s (2909kB/s-5187kB/s), io=32.0MiB (33.6MB), run=2426-3052msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146946: Mon Feb 9 20:50:54 2026 read: IOPS=1, BW=4387KiB/s (4492kB/s)(12.0MiB/2801msec) clat (msec): min=133, max=1875, avg=911.88, stdev=885.60 lat (msec): min=133, max=1875, avg=911.88, stdev=885.60 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 134], | 30.00th=[ 134], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 1871], 80.00th=[ 1871], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.68%, ctx=83, 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=146948: Mon Feb 9 20:50:54 2026 read: IOPS=0, BW=1344KiB/s (1377kB/s)(4096KiB/3047msec) clat (nsec): min=1463.6M, max=1463.6M, avg=1463563429.00, stdev= 0.00 lat (nsec): min=1463.6M, max=1463.6M, avg=1463564839.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1469], 5.00th=[ 1469], 10.00th=[ 1469], 20.00th=[ 1469], | 30.00th=[ 1469], 40.00th=[ 1469], 50.00th=[ 1469], 60.00th=[ 1469], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2689KiB/s (2753kB/s)(8192KiB/3047msec); 0 zone resets clat (msec): min=555, max=1003, avg=779.61, stdev=317.04 lat (msec): min=555, max=1004, avg=779.96, stdev=316.94 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 1003], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8175, max= 8175, per=76.02%, avg=8175.00, 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=8.21%, ctx=63, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146950: Mon Feb 9 20:50:54 2026 write: IOPS=1, BW=4604KiB/s (4714kB/s)(12.0MiB/2669msec); 0 zone resets clat (msec): min=139, max=1712, avg=867.12, stdev=793.35 lat (msec): min=139, max=1712, avg=867.38, stdev=793.34 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8175, max= 8175, per=76.02%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=9.60%, ctx=82, 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=146951: Mon Feb 9 20:50:54 2026 write: IOPS=1, BW=4804KiB/s (4919kB/s)(12.0MiB/2558msec); 0 zone resets clat (msec): min=206, max=1677, avg=836.21, stdev=757.97 lat (msec): min=206, max=1677, avg=836.51, stdev=757.99 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8175, max= 8175, per=76.02%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=7.67%, ctx=61, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5377KiB/s (5506kB/s), 1344KiB/s-4387KiB/s (1377kB/s-4492kB/s), io=16.0MiB (16.8MB), run=2801-3047msec WRITE: bw=10.5MiB/s (11.0MB/s), 2689KiB/s-4804KiB/s (2753kB/s-4919kB/s), io=32.0MiB (33.6MB), run=2558-3047msec