== sanity test 398b: DIO and buffer IO race ============== 11:10:35 (1786979435) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.1548 s, 9.8 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=145979: Mon Aug 17 11:13:02 2026 read: IOPS=11, BW=47.6KiB/s (48.8kB/s)(5992KiB/125828msec) clat (usec): min=35, max=744736, avg=42705.46, stdev=33053.00 lat (usec): min=36, max=744737, avg=42717.00, stdev=33056.88 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 13042], 20.00th=[ 21627], | 30.00th=[ 26608], 40.00th=[ 31851], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 63177], 90.00th=[ 78119], 95.00th=[ 91751], | 99.00th=[126354], 99.50th=[139461], 99.90th=[244319], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 5, max= 103, per=25.46%, avg=47.10, stdev=18.25, samples=248 iops : min= 1, max= 25, avg=11.12, stdev= 4.58, samples=248 write: IOPS=12, BW=50.0KiB/s (51.2kB/s)(6296KiB/125828msec); 0 zone resets clat (usec): min=1039, max=363160, avg=39054.69, stdev=39351.42 lat (usec): min=1040, max=363160, avg=39056.97, stdev=39352.54 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1369], 10.00th=[ 1795], 20.00th=[ 4686], | 30.00th=[ 10159], 40.00th=[ 19268], 50.00th=[ 28967], 60.00th=[ 39584], | 70.00th=[ 50594], 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[115868], | 99.00th=[168821], 99.50th=[191890], 99.90th=[240124], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 102, per=25.76%, avg=49.72, stdev=19.79, samples=247 iops : min= 1, max= 25, avg=11.78, stdev= 4.98, samples=247 lat (usec) : 50=0.62%, 100=2.86%, 250=0.26%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.76%, 4=3.42%, 10=6.48%, 20=9.54%, 50=39.55% lat (msec) : 100=26.07%, 250=5.27%, 500=0.03%, 750=0.03% cpu : usr=0.07%, sys=5.01%, ctx=6697, 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=145981: Mon Aug 17 11:13:02 2026 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5940KiB/129628msec) clat (usec): min=27, max=694022, avg=43220.25, stdev=35884.50 lat (usec): min=28, max=694025, avg=43222.16, stdev=35884.62 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 10421], 20.00th=[ 19792], | 30.00th=[ 25035], 40.00th=[ 30802], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 51643], 80.00th=[ 63701], 90.00th=[ 80217], 95.00th=[100140], | 99.00th=[156238], 99.50th=[187696], 99.90th=[312476], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 7, max= 95, per=24.73%, avg=45.76, stdev=18.32, samples=252 iops : min= 1, max= 23, avg=10.77, stdev= 4.60, samples=252 write: IOPS=12, BW=48.0KiB/s (50.1kB/s)(6348KiB/129628msec); 0 zone resets clat (usec): min=1100, max=470533, avg=40948.71, stdev=41232.07 lat (usec): min=1100, max=470535, avg=40952.00, stdev=41234.92 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1352], 10.00th=[ 1827], 20.00th=[ 5080], | 30.00th=[ 10290], 40.00th=[ 20579], 50.00th=[ 31327], 60.00th=[ 42206], | 70.00th=[ 53740], 80.00th=[ 68682], 90.00th=[ 93848], 95.00th=[116917], | 99.00th=[168821], 99.50th=[198181], 99.90th=[295699], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 7, max= 118, per=25.32%, avg=48.87, stdev=21.24, samples=252 iops : min= 1, max= 29, avg=11.56, stdev= 5.34, samples=252 lat (usec) : 50=0.42%, 100=3.26%, 250=0.36%, 500=0.07% lat (msec) : 2=5.99%, 4=3.39%, 10=6.71%, 20=9.96%, 50=37.83% lat (msec) : 100=25.26%, 250=6.61%, 500=0.13%, 750=0.03% cpu : usr=0.06%, sys=4.95%, ctx=6648, 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=145983: Mon Aug 17 11:13:02 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6028KiB/129176msec) clat (usec): min=29, max=371805, avg=41225.56, stdev=30147.59 lat (usec): min=30, max=371806, avg=41227.33, stdev=30147.57 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 11207], 20.00th=[ 20841], | 30.00th=[ 25560], 40.00th=[ 30016], 50.00th=[ 35390], 60.00th=[ 41681], | 70.00th=[ 49546], 80.00th=[ 60031], 90.00th=[ 77071], 95.00th=[ 91751], | 99.00th=[132645], 99.50th=[191890], 99.90th=[210764], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 109, per=25.42%, avg=47.02, stdev=19.87, samples=249 iops : min= 1, max= 27, avg=11.09, stdev= 4.99, samples=249 write: IOPS=12, BW=48.5KiB/s (49.6kB/s)(6260KiB/129176msec); 0 zone resets clat (usec): min=1090, max=911414, avg=42584.21, stdev=48714.50 lat (usec): min=1091, max=911416, avg=42589.59, stdev=48724.03 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1352], 10.00th=[ 1860], 20.00th=[ 4490], | 30.00th=[ 10421], 40.00th=[ 21627], 50.00th=[ 31589], 60.00th=[ 41157], | 70.00th=[ 53740], 80.00th=[ 71828], 90.00th=[100140], 95.00th=[123208], | 99.00th=[185598], 99.50th=[227541], 99.90th=[480248], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 135, per=24.85%, avg=47.96, stdev=19.55, samples=253 iops : min= 1, max= 33, avg=11.33, stdev= 4.92, samples=253 lat (usec) : 50=0.59%, 100=3.22%, 250=0.33%, 500=0.10%, 1000=0.03% lat (msec) : 2=5.40%, 4=3.87%, 10=6.35%, 20=8.59%, 50=40.33% lat (msec) : 100=24.32%, 250=6.71%, 500=0.13%, 1000=0.03% cpu : usr=0.06%, sys=4.96%, ctx=6670, 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=145985: Mon Aug 17 11:13:02 2026 read: IOPS=11, BW=47.5KiB/s (48.6kB/s)(6052KiB/127397msec) clat (usec): min=32, max=694368, avg=42040.47, stdev=33578.56 lat (usec): min=32, max=694369, avg=42047.01, stdev=33576.14 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 13960], 20.00th=[ 20579], | 30.00th=[ 26084], 40.00th=[ 30278], 50.00th=[ 36439], 60.00th=[ 42206], | 70.00th=[ 50070], 80.00th=[ 60556], 90.00th=[ 77071], 95.00th=[ 91751], | 99.00th=[143655], 99.50th=[177210], 99.90th=[299893], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 5, max= 109, per=25.52%, avg=47.21, stdev=19.29, samples=250 iops : min= 1, max= 27, avg=11.14, stdev= 4.84, samples=250 write: IOPS=12, BW=48.9KiB/s (50.1kB/s)(6236KiB/127397msec); 0 zone resets clat (usec): min=1045, max=315534, avg=40631.62, stdev=41185.67 lat (usec): min=1046, max=315535, avg=40633.27, stdev=41185.71 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1369], 10.00th=[ 1975], 20.00th=[ 4686], | 30.00th=[ 10421], 40.00th=[ 20579], 50.00th=[ 29754], 60.00th=[ 40633], | 70.00th=[ 52691], 80.00th=[ 69731], 90.00th=[ 94897], 95.00th=[122160], | 99.00th=[181404], 99.50th=[221250], 99.90th=[295699], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 7, max= 135, per=25.18%, avg=48.59, stdev=19.41, samples=250 iops : min= 1, max= 33, avg=11.49, stdev= 4.88, samples=250 lat (usec) : 50=0.46%, 100=2.54%, 250=0.26%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=5.21%, 4=4.04%, 10=6.09%, 20=10.42%, 50=39.58% lat (msec) : 100=25.13%, 250=5.79%, 500=0.23%, 750=0.03% cpu : usr=0.08%, sys=5.00%, ctx=6690, 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=185KiB/s (190kB/s), 45.8KiB/s-47.6KiB/s (46.9kB/s-48.8kB/s), io=23.4MiB (24.6MB), run=125828-129628msec WRITE: bw=194KiB/s (199kB/s), 48.5KiB/s-50.0KiB/s (49.6kB/s-51.2kB/s), io=24.6MiB (25.7MB), run=125828-129628msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145978: Mon Aug 17 11:15:05 2026 read: IOPS=5, BW=23.8KiB/s (24.4kB/s)(5992KiB/251436msec) clat (msec): min=5, max=770, avg=33.90, stdev=40.40 lat (msec): min=5, max=770, avg=33.90, stdev=40.40 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 47], 90.00th=[ 75], 95.00th=[ 103], | 99.00th=[ 178], 99.50th=[ 220], 99.90th=[ 397], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 95, per=27.89%, avg=26.21, stdev=18.02, samples=442 iops : min= 1, max= 23, avg= 5.92, stdev= 4.55, samples=442 write: IOPS=6, BW=25.0KiB/s (25.6kB/s)(6296KiB/251436msec); 0 zone resets clat (msec): min=30, max=512, avg=127.24, stdev=61.69 lat (msec): min=30, max=512, avg=127.25, stdev=61.69 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 67], 20.00th=[ 79], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 111], 60.00th=[ 126], | 70.00th=[ 146], 80.00th=[ 169], 90.00th=[ 207], 95.00th=[ 247], | 99.00th=[ 342], 99.50th=[ 388], 99.90th=[ 502], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 7, max= 56, per=24.82%, avg=24.57, stdev=11.51, samples=494 iops : min= 1, max= 14, avg= 5.50, stdev= 2.95, samples=494 lat (msec) : 10=4.07%, 20=20.08%, 50=16.34%, 100=26.50%, 250=30.47% lat (msec) : 500=2.44%, 750=0.07%, 1000=0.03% cpu : usr=0.03%, sys=1.33%, ctx=5125, 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=145980: Mon Aug 17 11:15:05 2026 read: IOPS=5, BW=23.5KiB/s (24.1kB/s)(5940KiB/252878msec) clat (msec): min=5, max=719, avg=34.39, stdev=40.45 lat (msec): min=5, max=719, avg=34.40, stdev=40.44 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 48], 90.00th=[ 79], 95.00th=[ 105], | 99.00th=[ 197], 99.50th=[ 222], 99.90th=[ 368], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 7, max= 103, per=27.94%, avg=26.26, stdev=17.52, samples=437 iops : min= 1, max= 25, avg= 5.93, stdev= 4.41, samples=437 write: IOPS=6, BW=25.1KiB/s (25.7kB/s)(6348KiB/252878msec); 0 zone resets clat (msec): min=36, max=505, avg=126.91, stdev=62.74 lat (msec): min=36, max=505, avg=126.91, stdev=62.74 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 78], | 30.00th=[ 88], 40.00th=[ 100], 50.00th=[ 111], 60.00th=[ 125], | 70.00th=[ 144], 80.00th=[ 169], 90.00th=[ 211], 95.00th=[ 249], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 460], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 7, max= 56, per=24.86%, avg=24.61, stdev=11.91, samples=497 iops : min= 1, max= 14, avg= 5.51, stdev= 3.06, samples=497 lat (msec) : 10=4.17%, 20=19.66%, 50=16.11%, 100=26.99%, 250=30.44% lat (msec) : 500=2.57%, 750=0.07% cpu : usr=0.04%, sys=1.39%, ctx=5260, 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=145982: Mon Aug 17 11:15:05 2026 read: IOPS=5, BW=23.8KiB/s (24.4kB/s)(6028KiB/253017msec) clat (msec): min=5, max=306, avg=35.54, stdev=35.07 lat (msec): min=5, max=306, avg=35.54, stdev=35.07 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 53], 90.00th=[ 81], 95.00th=[ 106], | 99.00th=[ 163], 99.50th=[ 215], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 7, max= 120, per=26.95%, avg=25.34, stdev=17.53, samples=458 iops : min= 1, max= 30, avg= 5.70, stdev= 4.43, samples=458 write: IOPS=6, BW=24.7KiB/s (25.3kB/s)(6260KiB/253017msec); 0 zone resets clat (msec): min=36, max=882, avg=127.17, stdev=63.65 lat (msec): min=36, max=882, avg=127.18, stdev=63.65 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 112], 60.00th=[ 126], | 70.00th=[ 144], 80.00th=[ 167], 90.00th=[ 207], 95.00th=[ 249], | 99.00th=[ 342], 99.50th=[ 380], 99.90th=[ 451], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 56, per=24.56%, avg=24.31, stdev=11.60, samples=495 iops : min= 1, max= 14, avg= 5.43, stdev= 2.97, samples=495 lat (msec) : 10=4.23%, 20=17.58%, 50=17.71%, 100=27.34%, 250=30.50% lat (msec) : 500=2.60%, 1000=0.03% cpu : usr=0.04%, sys=1.35%, ctx=5140, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145984: Mon Aug 17 11:15:05 2026 read: IOPS=5, BW=23.0KiB/s (24.6kB/s)(6052KiB/252356msec) clat (msec): min=5, max=392, avg=33.71, stdev=35.99 lat (msec): min=5, max=392, avg=33.72, stdev=35.99 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 47], 90.00th=[ 75], 95.00th=[ 107], | 99.00th=[ 174], 99.50th=[ 218], 99.90th=[ 321], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 102, per=28.57%, avg=26.86, stdev=17.94, samples=435 iops : min= 1, max= 25, avg= 6.07, stdev= 4.54, samples=435 write: IOPS=6, BW=24.7KiB/s (25.3kB/s)(6236KiB/252356msec); 0 zone resets clat (msec): min=34, max=778, avg=128.87, stdev=63.75 lat (msec): min=34, max=778, avg=128.87, stdev=63.75 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 60], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 100], 50.00th=[ 113], 60.00th=[ 127], | 70.00th=[ 146], 80.00th=[ 174], 90.00th=[ 215], 95.00th=[ 251], | 99.00th=[ 330], 99.50th=[ 376], 99.90th=[ 502], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 56, per=24.58%, avg=24.33, stdev=11.16, samples=493 iops : min= 1, max= 14, avg= 5.44, stdev= 2.87, samples=493 lat (msec) : 10=4.43%, 20=19.79%, 50=16.41%, 100=26.43%, 250=30.14% lat (msec) : 500=2.73%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.36%, ctx=5166, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=94.9KiB/s (97.2kB/s), 23.5KiB/s-23.0KiB/s (24.1kB/s-24.6kB/s), io=23.4MiB (24.6MB), run=251436-253017msec WRITE: bw=99.4KiB/s (102kB/s), 24.7KiB/s-25.1KiB/s (25.3kB/s-25.7kB/s), io=24.6MiB (25.7MB), run=251436-253017msec 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=146043: Mon Aug 17 11:15:41 2026 read: IOPS=14, BW=227KiB/s (233kB/s)(5920KiB/26064msec) clat (usec): min=32, max=171471, avg=33180.73, stdev=27519.92 lat (usec): min=32, max=171472, avg=33183.32, stdev=27518.49 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 53], 10.00th=[ 62], 20.00th=[ 93], | 30.00th=[ 18220], 40.00th=[ 25822], 50.00th=[ 30540], 60.00th=[ 38536], | 70.00th=[ 48497], 80.00th=[ 54789], 90.00th=[ 65274], 95.00th=[ 79168], | 99.00th=[111674], 99.50th=[121111], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 63, max= 413, per=24.17%, avg=221.86, stdev=88.53, samples=51 iops : min= 3, max= 25, avg=13.06, stdev= 5.56, samples=51 write: IOPS=15, BW=244KiB/s (250kB/s)(6368KiB/26064msec); 0 zone resets clat (usec): min=1684, max=253097, avg=33941.69, stdev=38327.50 lat (usec): min=1686, max=253100, avg=33943.72, stdev=38327.64 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 1942], 10.00th=[ 2933], 20.00th=[ 5145], | 30.00th=[ 8225], 40.00th=[ 11731], 50.00th=[ 20841], 60.00th=[ 31851], | 70.00th=[ 41681], 80.00th=[ 56886], 90.00th=[ 80217], 95.00th=[100140], | 99.00th=[200279], 99.50th=[212861], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 63, max= 442, per=25.47%, avg=246.04, stdev=84.51, samples=50 iops : min= 3, max= 27, avg=14.58, stdev= 5.29, samples=50 lat (usec) : 50=2.21%, 100=7.81%, 250=1.56%, 500=0.39%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=2.99%, 4=5.08%, 10=10.29%, 20=9.77%, 50=33.07% lat (msec) : 100=23.05%, 250=3.26%, 500=0.13% cpu : usr=0.06%, sys=6.13%, ctx=1418, 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=146045: Mon Aug 17 11:15:41 2026 read: IOPS=14, BW=236KiB/s (242kB/s)(5744KiB/24343msec) clat (usec): min=37, max=222695, avg=33999.38, stdev=29763.25 lat (usec): min=38, max=222696, avg=34000.51, stdev=29763.24 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 77], | 30.00th=[ 17433], 40.00th=[ 25560], 50.00th=[ 31851], 60.00th=[ 41157], | 70.00th=[ 47449], 80.00th=[ 54789], 90.00th=[ 70779], 95.00th=[ 80217], | 99.00th=[137364], 99.50th=[149947], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 63, max= 508, per=25.78%, avg=236.67, stdev=90.43, samples=48 iops : min= 3, max= 31, avg=13.98, stdev= 5.68, samples=48 write: IOPS=16, BW=269KiB/s (275kB/s)(6544KiB/24343msec); 0 zone resets clat (usec): min=1644, max=180535, avg=29044.79, stdev=29491.93 lat (usec): min=1644, max=180538, avg=29047.00, stdev=29491.69 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 1991], 10.00th=[ 2638], 20.00th=[ 4359], | 30.00th=[ 7046], 40.00th=[ 10945], 50.00th=[ 17171], 60.00th=[ 28443], | 70.00th=[ 38536], 80.00th=[ 55313], 90.00th=[ 73925], 95.00th=[ 82314], | 99.00th=[113771], 99.50th=[132645], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 126, max= 605, per=27.76%, avg=268.12, stdev=99.83, samples=48 iops : min= 7, max= 37, avg=15.98, stdev= 6.30, samples=48 lat (usec) : 50=1.69%, 100=9.11%, 250=0.78%, 500=0.26%, 1000=0.13% lat (msec) : 2=3.26%, 4=6.51%, 10=11.33%, 20=10.94%, 50=32.68% lat (msec) : 100=20.96%, 250=2.34% cpu : usr=0.09%, sys=6.98%, ctx=1417, 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=146046: Mon Aug 17 11:15:41 2026 read: IOPS=15, BW=243KiB/s (249kB/s)(6256KiB/25713msec) clat (usec): min=31, max=252898, avg=33408.25, stdev=32202.92 lat (usec): min=31, max=252899, avg=33409.42, stdev=32202.89 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 54], 10.00th=[ 58], 20.00th=[ 71], | 30.00th=[ 594], 40.00th=[ 25035], 50.00th=[ 32113], 60.00th=[ 38011], | 70.00th=[ 45876], 80.00th=[ 54264], 90.00th=[ 70779], 95.00th=[ 84411], | 99.00th=[137364], 99.50th=[235930], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 62, max= 540, per=26.88%, avg=246.72, stdev=96.34, samples=50 iops : min= 3, max= 33, avg=14.62, stdev= 6.06, samples=50 write: IOPS=14, BW=235KiB/s (240kB/s)(6032KiB/25713msec); 0 zone resets clat (usec): min=1422, max=211287, avg=33177.13, stdev=34804.51 lat (usec): min=1423, max=211289, avg=33179.29, stdev=34804.59 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1991], 10.00th=[ 2704], 20.00th=[ 4817], | 30.00th=[ 8717], 40.00th=[ 12911], 50.00th=[ 22414], 60.00th=[ 31065], | 70.00th=[ 42206], 80.00th=[ 58983], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[158335], 99.50th=[202376], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 63, max= 638, per=24.24%, avg=234.12, stdev=102.51, samples=50 iops : min= 3, max= 39, avg=13.82, stdev= 6.44, samples=50 lat (usec) : 50=1.95%, 100=11.85%, 250=1.43%, 750=0.13% lat (msec) : 2=2.60%, 4=5.34%, 10=8.98%, 20=8.59%, 50=35.16% lat (msec) : 100=20.70%, 250=3.12%, 500=0.13% cpu : usr=0.06%, sys=6.45%, ctx=1426, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146048: Mon Aug 17 11:15:41 2026 read: IOPS=15, BW=241KiB/s (247kB/s)(6032KiB/25029msec) clat (usec): min=32, max=150120, avg=32814.77, stdev=28900.76 lat (usec): min=32, max=150121, avg=32815.89, stdev=28900.76 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 51], 10.00th=[ 58], 20.00th=[ 69], | 30.00th=[ 343], 40.00th=[ 23200], 50.00th=[ 32113], 60.00th=[ 40109], | 70.00th=[ 46924], 80.00th=[ 54264], 90.00th=[ 72877], 95.00th=[ 81265], | 99.00th=[100140], 99.50th=[139461], 99.90th=[149947], 99.95th=[149947], | 99.99th=[149947] bw ( KiB/s): min= 31, max= 415, per=26.99%, avg=247.75, stdev=87.54, samples=48 iops : min= 1, max= 25, avg=14.67, stdev= 5.52, samples=48 write: IOPS=15, BW=250KiB/s (256kB/s)(6256KiB/25029msec); 0 zone resets clat (usec): min=1415, max=257425, avg=31711.23, stdev=35228.33 lat (usec): min=1415, max=257428, avg=31724.58, stdev=35227.45 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1975], 10.00th=[ 2769], 20.00th=[ 4752], | 30.00th=[ 6915], 40.00th=[ 11600], 50.00th=[ 19006], 60.00th=[ 28181], | 70.00th=[ 40109], 80.00th=[ 57934], 90.00th=[ 79168], 95.00th=[ 96994], | 99.00th=[154141], 99.50th=[223347], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 65, max= 476, per=26.09%, avg=252.02, stdev=87.53, samples=49 iops : min= 4, max= 29, avg=14.94, stdev= 5.45, samples=49 lat (usec) : 50=2.34%, 100=10.29%, 250=1.82%, 500=0.52% lat (msec) : 2=2.99%, 4=5.08%, 10=11.20%, 20=10.03%, 50=31.64% lat (msec) : 100=21.61%, 250=2.34%, 500=0.13% cpu : usr=0.08%, sys=6.53%, ctx=1382, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=919KiB/s (941kB/s), 227KiB/s-243KiB/s (233kB/s-249kB/s), io=23.4MiB (24.5MB), run=24343-26064msec WRITE: bw=967KiB/s (990kB/s), 235KiB/s-269KiB/s (240kB/s-275kB/s), io=24.6MiB (25.8MB), run=24343-26064msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146041: Mon Aug 17 11:16:18 2026 read: IOPS=6, BW=96.5KiB/s (98.8kB/s)(5920KiB/61335msec) clat (msec): min=6, max=243, avg=35.01, stdev=33.16 lat (msec): min=6, max=243, avg=35.02, stdev=33.16 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 46], 90.00th=[ 73], 95.00th=[ 94], | 99.00th=[ 190], 99.50th=[ 239], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 31, max= 349, per=26.95%, avg=103.49, stdev=64.47, samples=112 iops : min= 1, max= 21, avg= 5.73, stdev= 4.09, samples=112 write: IOPS=6, BW=104KiB/s (106kB/s)(6368KiB/61335msec); 0 zone resets clat (msec): min=43, max=323, avg=120.93, stdev=50.29 lat (msec): min=43, max=323, avg=120.94, stdev=50.28 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 70], 20.00th=[ 81], | 30.00th=[ 89], 40.00th=[ 99], 50.00th=[ 111], 60.00th=[ 120], | 70.00th=[ 136], 80.00th=[ 155], 90.00th=[ 192], 95.00th=[ 224], | 99.00th=[ 300], 99.50th=[ 309], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 21, max= 191, per=26.06%, avg=105.29, stdev=39.99, samples=119 iops : min= 1, max= 11, avg= 5.84, stdev= 2.59, samples=119 lat (msec) : 10=1.82%, 20=16.54%, 50=21.74%, 100=26.82%, 250=31.51% lat (msec) : 500=1.56% cpu : usr=0.05%, sys=1.58%, ctx=1358, 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=146042: Mon Aug 17 11:16:18 2026 read: IOPS=5, BW=92.1KiB/s (94.3kB/s)(5744KiB/62360msec) clat (msec): min=5, max=277, avg=34.77, stdev=34.32 lat (msec): min=5, max=277, avg=34.77, stdev=34.32 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 87], 95.00th=[ 104], | 99.00th=[ 165], 99.50th=[ 192], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 22, max= 318, per=27.64%, avg=106.14, stdev=63.17, samples=107 iops : min= 1, max= 19, avg= 5.91, stdev= 3.97, samples=107 write: IOPS=6, BW=105KiB/s (107kB/s)(6544KiB/62360msec); 0 zone resets clat (msec): min=43, max=373, avg=121.26, stdev=51.92 lat (msec): min=43, max=373, avg=121.27, stdev=51.91 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 66], 10.00th=[ 71], 20.00th=[ 81], | 30.00th=[ 89], 40.00th=[ 99], 50.00th=[ 107], 60.00th=[ 116], | 70.00th=[ 131], 80.00th=[ 161], 90.00th=[ 199], 95.00th=[ 232], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 30, max= 223, per=26.12%, avg=105.53, stdev=43.14, samples=122 iops : min= 1, max= 13, avg= 5.85, stdev= 2.82, samples=122 lat (msec) : 10=2.21%, 20=18.75%, 50=17.84%, 100=28.39%, 250=30.86% lat (msec) : 500=1.95% cpu : usr=0.03%, sys=1.48%, ctx=1340, 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=146044: Mon Aug 17 11:16:18 2026 read: IOPS=6, BW=107KiB/s (110kB/s)(6256KiB/58443msec) clat (msec): min=6, max=236, avg=30.96, stdev=27.62 lat (msec): min=6, max=236, avg=30.96, stdev=27.62 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 39], 90.00th=[ 59], 95.00th=[ 94], | 99.00th=[ 138], 99.50th=[ 159], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 31, max= 382, per=29.58%, avg=113.58, stdev=79.92, samples=109 iops : min= 1, max= 23, avg= 6.39, stdev= 5.06, samples=109 write: IOPS=6, BW=103KiB/s (106kB/s)(6032KiB/58443msec); 0 zone resets clat (msec): min=35, max=364, avg=122.67, stdev=56.30 lat (msec): min=35, max=364, avg=122.67, stdev=56.30 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 62], 10.00th=[ 69], 20.00th=[ 80], | 30.00th=[ 88], 40.00th=[ 95], 50.00th=[ 110], 60.00th=[ 118], | 70.00th=[ 136], 80.00th=[ 163], 90.00th=[ 207], 95.00th=[ 243], | 99.00th=[ 321], 99.50th=[ 355], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 30, max= 192, per=25.41%, avg=102.66, stdev=42.32, samples=116 iops : min= 1, max= 12, avg= 5.70, stdev= 2.74, samples=116 lat (msec) : 10=2.73%, 20=19.53%, 50=22.53%, 100=25.65%, 250=27.86% lat (msec) : 500=1.69% cpu : usr=0.04%, sys=1.54%, ctx=1367, 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=146047: Mon Aug 17 11:16:18 2026 read: IOPS=6, BW=98.0KiB/s (101kB/s)(6032KiB/60933msec) clat (msec): min=7, max=282, avg=35.08, stdev=35.20 lat (msec): min=7, max=282, avg=35.08, stdev=35.20 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 44], 90.00th=[ 77], 95.00th=[ 102], | 99.00th=[ 190], 99.50th=[ 268], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 319, per=28.34%, avg=108.82, stdev=68.55, samples=108 iops : min= 1, max= 19, avg= 6.10, stdev= 4.36, samples=108 write: IOPS=6, BW=103KiB/s (105kB/s)(6256KiB/60933msec); 0 zone resets clat (msec): min=39, max=349, avg=121.42, stdev=54.91 lat (msec): min=39, max=349, avg=121.43, stdev=54.92 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 69], 20.00th=[ 80], | 30.00th=[ 89], 40.00th=[ 99], 50.00th=[ 106], 60.00th=[ 118], | 70.00th=[ 133], 80.00th=[ 157], 90.00th=[ 199], 95.00th=[ 236], | 99.00th=[ 321], 99.50th=[ 330], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 30, max= 224, per=25.29%, avg=102.17, stdev=44.42, samples=120 iops : min= 1, max= 14, avg= 5.68, stdev= 2.90, samples=120 lat (msec) : 10=1.30%, 20=18.75%, 50=22.14%, 100=25.65%, 250=30.08% lat (msec) : 500=2.08% cpu : usr=0.04%, sys=1.52%, ctx=1371, 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=384KiB/s (393kB/s), 92.1KiB/s-107KiB/s (94.3kB/s-110kB/s), io=23.4MiB (24.5MB), run=58443-62360msec WRITE: bw=404KiB/s (414kB/s), 103KiB/s-105KiB/s (105kB/s-107kB/s), io=24.6MiB (25.8MB), run=58443-62360msec 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=146068: Mon Aug 17 11:16:36 2026 read: IOPS=1, BW=1211KiB/s (1240kB/s)(7168KiB/5917msec) clat (msec): min=132, max=1773, avg=644.56, stdev=767.28 lat (msec): min=132, max=1773, avg=644.56, stdev=767.28 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 138], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 218], 60.00th=[ 355], | 70.00th=[ 355], 80.00th=[ 1754], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 1488, max= 4079, per=87.09%, avg=2320.00, stdev=1009.84, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=0, BW=865KiB/s (886kB/s)(5120KiB/5917msec); 0 zone resets clat (msec): min=157, max=325, avg=271.40, stdev=67.09 lat (msec): min=157, max=325, avg=271.50, stdev=67.11 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 268], 40.00th=[ 268], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 313], 80.00th=[ 313], 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= 1946, max= 4079, per=67.46%, avg=2515.75, stdev=1042.74, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=41.67%, 500=41.67%, 2000=16.67% cpu : usr=0.00%, sys=3.04%, ctx=67, 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=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=146070: Mon Aug 17 11:16:36 2026 read: IOPS=0, BW=267KiB/s (274kB/s)(2048KiB/7661msec) clat (msec): min=150, max=188, avg=169.53, stdev=27.03 lat (msec): min=150, max=188, avg=169.53, stdev=27.02 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 188], | 70.00th=[ 188], 80.00th=[ 188], 90.00th=[ 188], 95.00th=[ 188], | 99.00th=[ 188], 99.50th=[ 188], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 1521, max= 1988, per=65.86%, avg=1754.50, stdev=330.22, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1337KiB/s (1369kB/s)(10.0MiB/7661msec); 0 zone resets clat (msec): min=155, max=3301, avg=700.32, stdev=1049.49 lat (msec): min=155, max=3302, avg=700.45, stdev=1049.47 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 194], 50.00th=[ 199], 60.00th=[ 203], | 70.00th=[ 279], 80.00th=[ 464], 90.00th=[ 1854], 95.00th=[ 3306], | 99.00th=[ 3306], 99.50th=[ 3306], 99.90th=[ 3306], 99.95th=[ 3306], | 99.99th=[ 3306] bw ( KiB/s): min= 1988, max= 6047, per=86.82%, avg=3237.60, stdev=1803.64, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 250=66.67%, 500=16.67%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.13%, ctx=67, 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=146072: Mon Aug 17 11:16:36 2026 read: IOPS=0, BW=832KiB/s (852kB/s)(6144KiB/7383msec) clat (msec): min=65, max=279, avg=169.79, stdev=84.41 lat (msec): min=65, max=279, avg=169.79, stdev=84.41 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 110], | 30.00th=[ 110], 40.00th=[ 133], 50.00th=[ 133], 60.00th=[ 176], | 70.00th=[ 257], 80.00th=[ 257], 90.00th=[ 279], 95.00th=[ 279], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 4047, max= 5965, per=100.00%, avg=5006.00, stdev=1356.23, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=0, BW=832KiB/s (852kB/s)(6144KiB/7383msec); 0 zone resets clat (msec): min=160, max=3598, avg=1012.09, stdev=1309.59 lat (msec): min=160, max=3599, avg=1012.20, stdev=1309.61 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 567], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 3608], 95.00th=[ 3608], | 99.00th=[ 3608], 99.50th=[ 3608], 99.90th=[ 3608], 99.95th=[ 3608], | 99.99th=[ 3608] bw ( KiB/s): min= 1585, max= 2043, per=52.42%, avg=1954.83, stdev=182.34, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.29%, ctx=74, 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=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=146074: Mon Aug 17 11:16:36 2026 read: IOPS=0, BW=666KiB/s (682kB/s)(5120KiB/7687msec) clat (msec): min=76, max=372, avg=153.70, stdev=123.77 lat (msec): min=76, max=372, avg=153.70, stdev=123.77 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 77], | 30.00th=[ 89], 40.00th=[ 89], 50.00th=[ 102], 60.00th=[ 102], | 70.00th=[ 131], 80.00th=[ 131], 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= 3976, max= 4071, per=100.00%, avg=4023.50, stdev=67.18, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=0, BW=932KiB/s (955kB/s)(7168KiB/7687msec); 0 zone resets clat (msec): min=172, max=4756, avg=955.31, stdev=1681.67 lat (msec): min=172, max=4756, avg=955.48, stdev=1681.64 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 218], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 262], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 514], 90.00th=[ 4732], 95.00th=[ 4732], | 99.00th=[ 4732], 99.50th=[ 4732], 99.90th=[ 4732], 99.95th=[ 4732], | 99.99th=[ 4732] bw ( KiB/s): min= 1577, max= 2039, per=51.41%, avg=1917.00, stdev=193.84, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.01%, sys=3.03%, ctx=106, 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=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=2664KiB/s (2728kB/s), 267KiB/s-1211KiB/s (274kB/s-1240kB/s), io=20.0MiB (20.0MB), run=5917-7687msec WRITE: bw=3730KiB/s (3819kB/s), 832KiB/s-1337KiB/s (852kB/s-1369kB/s), io=28.0MiB (29.4MB), run=5917-7687msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146067: Mon Aug 17 11:16:36 2026 read: IOPS=1, BW=1153KiB/s (1181kB/s)(7168KiB/6216msec) clat (msec): min=138, max=2041, avg=665.21, stdev=829.44 lat (msec): min=138, max=2041, avg=665.21, stdev=829.44 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 180], | 30.00th=[ 182], 40.00th=[ 182], 50.00th=[ 207], 60.00th=[ 211], | 70.00th=[ 211], 80.00th=[ 1703], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 2043, max= 4071, per=100.00%, avg=3056.25, stdev=1167.12, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=0, BW=824KiB/s (843kB/s)(5120KiB/6216msec); 0 zone resets clat (msec): min=112, max=453, avg=292.12, stdev=127.09 lat (msec): min=115, max=453, avg=293.06, stdev=126.00 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 279], 60.00th=[ 279], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 2007, max= 4079, per=69.36%, avg=2544.25, stdev=1023.33, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=11.25%, ctx=701, 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=146069: Mon Aug 17 11:16:36 2026 read: IOPS=0, BW=262KiB/s (268kB/s)(2048KiB/7816msec) clat (msec): min=2, max=202, avg=102.63, stdev=140.91 lat (msec): min=2, max=202, avg=102.64, stdev=140.91 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 3], 40.00th=[ 3], 50.00th=[ 3], 60.00th=[ 203], | 70.00th=[ 203], 80.00th=[ 203], 90.00th=[ 203], 95.00th=[ 203], | 99.00th=[ 203], 99.50th=[ 203], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 1686, max= 2043, per=71.16%, avg=1864.50, stdev=252.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1310KiB/s (1342kB/s)(10.0MiB/7816msec); 0 zone resets clat (msec): min=115, max=3399, avg=731.75, stdev=1093.59 lat (msec): min=115, max=3401, avg=731.97, stdev=1093.90 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 148], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 355], 80.00th=[ 701], 90.00th=[ 1955], 95.00th=[ 3406], | 99.00th=[ 3406], 99.50th=[ 3406], 99.90th=[ 3406], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min= 4071, max= 4096, per=100.00%, avg=4085.25, stdev=10.40, samples=4 iops : min= 3, max= 4, avg= 3.25, stdev= 0.50, samples=4 lat (msec) : 4=8.33%, 250=58.33%, 500=8.33%, 750=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=7.08%, ctx=91, 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=146071: Mon Aug 17 11:16:36 2026 read: IOPS=1, BW=1065KiB/s (1091kB/s)(6144KiB/5767msec) clat (usec): min=373, max=143756, avg=25349.12, stdev=58039.91 lat (usec): min=374, max=143757, avg=25350.90, stdev=58039.74 clat percentiles (usec): | 1.00th=[ 375], 5.00th=[ 375], 10.00th=[ 375], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 766], 50.00th=[ 766], 60.00th=[ 1319], | 70.00th=[ 5473], 80.00th=[ 5473], 90.00th=[143655], 95.00th=[143655], | 99.00th=[143655], 99.50th=[143655], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1065KiB/s (1091kB/s)(6144KiB/5767msec); 0 zone resets clat (msec): min=92, max=3673, avg=881.87, stdev=1377.20 lat (msec): min=92, max=3673, avg=881.92, stdev=1377.21 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 251], | 30.00th=[ 251], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 468], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 3675], 95.00th=[ 3675], | 99.00th=[ 3675], 99.50th=[ 3675], 99.90th=[ 3675], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 2039, max= 4047, per=91.79%, avg=3367.00, stdev=1150.19, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (usec) : 500=16.67%, 1000=8.33% lat (msec) : 2=8.33%, 10=8.33%, 100=8.33%, 250=16.67%, 500=16.67% lat (msec) : 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=5.67%, ctx=128, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146073: Mon Aug 17 11:16:36 2026 read: IOPS=0, BW=867KiB/s (888kB/s)(5120KiB/5903msec) clat (usec): min=575, max=234691, avg=79234.13, stdev=109116.05 lat (usec): min=577, max=234691, avg=79235.50, stdev=109115.60 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[ 578], | 30.00th=[ 1942], 40.00th=[ 1942], 50.00th=[ 4359], 60.00th=[ 4359], | 70.00th=[154141], 80.00th=[154141], 90.00th=[233833], 95.00th=[233833], | 99.00th=[233833], 99.50th=[233833], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 2031, max= 6023, per=100.00%, avg=4027.00, stdev=2822.77, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1214KiB/s (1243kB/s)(7168KiB/5903msec); 0 zone resets clat (msec): min=86, max=3509, avg=734.08, stdev=1227.81 lat (msec): min=87, max=3509, avg=734.35, stdev=1227.71 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 236], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 313], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 418], 90.00th=[ 3507], 95.00th=[ 3507], | 99.00th=[ 3507], 99.50th=[ 3507], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 2023, max= 6095, per=92.30%, avg=3385.67, stdev=2346.37, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 10=8.33%, 100=8.33%, 250=25.00%, 500=33.33% lat (msec) : >=2000=8.33% cpu : usr=0.05%, sys=7.44%, ctx=134, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2620KiB/s (2683kB/s), 262KiB/s-1153KiB/s (268kB/s-1181kB/s), io=20.0MiB (20.0MB), run=5767-7816msec WRITE: bw=3668KiB/s (3756kB/s), 824KiB/s-1310KiB/s (843kB/s-1342kB/s), io=28.0MiB (29.4MB), run=5767-7816msec 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=146082: Mon Aug 17 11:16:53 2026 read: IOPS=0, BW=2219KiB/s (2272kB/s)(12.0MiB/5538msec) clat (msec): min=457, max=4052, avg=1808.14, stdev=1957.34 lat (msec): min=457, max=4052, avg=1808.14, stdev=1957.34 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 4044], 80.00th=[ 4044], 90.00th=[ 4044], 95.00th=[ 4044], | 99.00th=[ 4044], 99.50th=[ 4044], 99.90th=[ 4044], 99.95th=[ 4044], | 99.99th=[ 4044] 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=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.22%, ctx=44, 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=146084: Mon Aug 17 11:16:53 2026 read: IOPS=0, BW=748KiB/s (766kB/s)(4096KiB/5479msec) clat (nsec): min=240948k, max=240948k, avg=240947839.00, stdev= 0.00 lat (nsec): min=240951k, max=240951k, avg=240951239.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 241], | 70.00th=[ 241], 80.00th=[ 241], 90.00th=[ 241], 95.00th=[ 241], | 99.00th=[ 241], 99.50th=[ 241], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 7892, max= 7892, per=100.00%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1495KiB/s (1531kB/s)(8192KiB/5479msec); 0 zone resets clat (msec): min=1222, max=3911, avg=2566.67, stdev=1901.55 lat (msec): min=1222, max=3917, avg=2570.19, stdev=1906.08 clat percentiles (msec): | 1.00th=[ 1217], 5.00th=[ 1217], 10.00th=[ 1217], 20.00th=[ 1217], | 30.00th=[ 1217], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 3910], | 70.00th=[ 3910], 80.00th=[ 3910], 90.00th=[ 3910], 95.00th=[ 3910], | 99.00th=[ 3910], 99.50th=[ 3910], 99.90th=[ 3910], 99.95th=[ 3910], | 99.99th=[ 3910] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.04%, sys=2.68%, ctx=82, 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=146086: Mon Aug 17 11:16:53 2026 write: IOPS=0, BW=1991KiB/s (2039kB/s)(12.0MiB/6171msec); 0 zone resets clat (msec): min=340, max=4102, avg=1995.02, stdev=1921.48 lat (msec): min=341, max=4103, avg=1995.91, stdev=1921.26 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 1536], 50.00th=[ 1536], 60.00th=[ 1536], | 70.00th=[ 4111], 80.00th=[ 4111], 90.00th=[ 4111], 95.00th=[ 4111], | 99.00th=[ 4111], 99.50th=[ 4111], 99.90th=[ 4111], 99.95th=[ 4111], | 99.99th=[ 4111] bw ( KiB/s): min= 8110, max= 8159, per=100.00%, avg=8134.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=2.84%, ctx=65, 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=146088: Mon Aug 17 11:16:53 2026 write: IOPS=1, BW=5621KiB/s (5756kB/s)(12.0MiB/2186msec); 0 zone resets clat (msec): min=391, max=1349, avg=714.45, stdev=549.74 lat (msec): min=395, max=1349, avg=716.12, stdev=548.96 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 5777, max= 8175, per=100.00%, avg=6976.00, stdev=1695.64, 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=4.81%, ctx=56, 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=2958KiB/s (3029kB/s), 748KiB/s-2219KiB/s (766kB/s-2272kB/s), io=16.0MiB (16.8MB), run=5479-5538msec WRITE: bw=5310KiB/s (5437kB/s), 1495KiB/s-5621KiB/s (1531kB/s-5756kB/s), io=32.0MiB (33.6MB), run=2186-6171msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146081: Mon Aug 17 11:16:53 2026 read: IOPS=0, BW=2266KiB/s (2320kB/s)(12.0MiB/5423msec) clat (msec): min=724, max=3808, avg=1767.84, stdev=1767.45 lat (msec): min=724, max=3808, avg=1767.84, stdev=1767.45 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 3809], 80.00th=[ 3809], 90.00th=[ 3809], 95.00th=[ 3809], | 99.00th=[ 3809], 99.50th=[ 3809], 99.90th=[ 3809], 99.95th=[ 3809], | 99.99th=[ 3809] bw ( KiB/s): min= 8126, max= 8175, per=100.00%, avg=8150.50, stdev=34.65, 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=0.07%, sys=8.98%, ctx=841, 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=146083: Mon Aug 17 11:16:53 2026 read: IOPS=0, BW=651KiB/s (667kB/s)(4096KiB/6289msec) clat (nsec): min=749325k, max=749325k, avg=749325240.00, stdev= 0.00 lat (nsec): min=749328k, max=749328k, avg=749327867.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] 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 write: IOPS=0, BW=1303KiB/s (1334kB/s)(8192KiB/6289msec); 0 zone resets clat (msec): min=1107, max=4330, avg=2719.10, stdev=2278.55 lat (msec): min=1108, max=4330, avg=2719.55, stdev=2278.61 clat percentiles (msec): | 1.00th=[ 1116], 5.00th=[ 1116], 10.00th=[ 1116], 20.00th=[ 1116], | 30.00th=[ 1116], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 4329], | 70.00th=[ 4329], 80.00th=[ 4329], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.15%, ctx=142, 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=146085: Mon Aug 17 11:16:53 2026 write: IOPS=0, BW=1956KiB/s (2003kB/s)(12.0MiB/6282msec); 0 zone resets clat (msec): min=320, max=4067, avg=2073.41, stdev=1884.88 lat (msec): min=321, max=4067, avg=2073.88, stdev=1884.77 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 1838], 50.00th=[ 1838], 60.00th=[ 1838], | 70.00th=[ 4077], 80.00th=[ 4077], 90.00th=[ 4077], 95.00th=[ 4077], | 99.00th=[ 4077], 99.50th=[ 4077], 99.90th=[ 4077], 99.95th=[ 4077], | 99.99th=[ 4077] bw ( KiB/s): min= 8143, max= 8159, per=100.00%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.05%, sys=1.99%, ctx=41, 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=146087: Mon Aug 17 11:16:53 2026 write: IOPS=1, BW=4959KiB/s (5078kB/s)(12.0MiB/2478msec); 0 zone resets clat (msec): min=658, max=953, avg=786.26, stdev=151.31 lat (msec): min=659, max=954, avg=786.76, stdev=151.61 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=7.31%, ctx=66, 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=2605KiB/s (2668kB/s), 651KiB/s-2266KiB/s (667kB/s-2320kB/s), io=16.0MiB (16.8MB), run=5423-6289msec WRITE: bw=5210KiB/s (5335kB/s), 1303KiB/s-4959KiB/s (1334kB/s-5078kB/s), io=32.0MiB (33.6MB), run=2478-6289msec