== sanity test 398b: DIO and buffer IO race ============== 19:37:45 (1788910665) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.17781 s, 15.8 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=151399: Tue Sep 8 19:38:52 2026 read: IOPS=26, BW=108KiB/s (110kB/s)(5992KiB/55585msec) clat (usec): min=38, max=855360, avg=18779.98, stdev=25984.99 lat (usec): min=38, max=855362, avg=18782.01, stdev=25985.76 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 127], 10.00th=[ 6718], 20.00th=[ 9372], | 30.00th=[ 10945], 40.00th=[ 12780], 50.00th=[ 15139], 60.00th=[ 17957], | 70.00th=[ 21365], 80.00th=[ 25297], 90.00th=[ 32637], 95.00th=[ 41681], | 99.00th=[ 66847], 99.50th=[ 84411], 99.90th=[210764], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 23, max= 191, per=26.31%, avg=109.98, stdev=32.19, samples=108 iops : min= 5, max= 47, avg=27.07, stdev= 8.16, samples=108 write: IOPS=28, BW=113KiB/s (116kB/s)(6296KiB/55585msec); 0 zone resets clat (usec): min=714, max=194255, avg=17263.53, stdev=17766.15 lat (usec): min=714, max=194256, avg=17264.83, stdev=17766.02 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1614], 10.00th=[ 2278], 20.00th=[ 3294], | 30.00th=[ 5407], 40.00th=[ 9634], 50.00th=[ 13173], 60.00th=[ 16712], | 70.00th=[ 21365], 80.00th=[ 26608], 90.00th=[ 38011], 95.00th=[ 47973], | 99.00th=[ 83362], 99.50th=[ 94897], 99.90th=[187696], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 15, max= 216, per=26.36%, avg=115.45, stdev=37.64, samples=108 iops : min= 3, max= 54, avg=28.44, stdev= 9.50, samples=108 lat (usec) : 50=0.26%, 100=1.33%, 250=1.69%, 500=0.07%, 750=0.10% lat (usec) : 1000=0.36% lat (msec) : 2=3.61%, 4=8.59%, 10=17.19%, 20=33.37%, 50=29.69% lat (msec) : 100=3.35%, 250=0.36%, 1000=0.03% cpu : usr=0.12%, sys=20.79%, ctx=7794, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151401: Tue Sep 8 19:38:52 2026 read: IOPS=27, BW=111KiB/s (114kB/s)(5940KiB/53509msec) clat (usec): min=26, max=253296, avg=17930.94, stdev=14246.53 lat (usec): min=26, max=253297, avg=17932.08, stdev=14246.36 clat percentiles (usec): | 1.00th=[ 73], 5.00th=[ 227], 10.00th=[ 7308], 20.00th=[ 9241], | 30.00th=[ 10945], 40.00th=[ 13042], 50.00th=[ 15008], 60.00th=[ 17957], | 70.00th=[ 20579], 80.00th=[ 25035], 90.00th=[ 31589], 95.00th=[ 38536], | 99.00th=[ 61080], 99.50th=[ 90702], 99.90th=[156238], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 7, max= 184, per=26.87%, avg=112.33, stdev=35.36, samples=105 iops : min= 1, max= 46, avg=27.67, stdev= 8.91, samples=105 write: IOPS=29, BW=119KiB/s (121kB/s)(6348KiB/53509msec); 0 zone resets clat (usec): min=632, max=844039, avg=16759.65, stdev=25980.55 lat (usec): min=632, max=844041, avg=16761.15, stdev=25982.08 clat percentiles (usec): | 1.00th=[ 930], 5.00th=[ 1450], 10.00th=[ 2180], 20.00th=[ 3326], | 30.00th=[ 5145], 40.00th=[ 8848], 50.00th=[ 12387], 60.00th=[ 16188], | 70.00th=[ 20579], 80.00th=[ 26084], 90.00th=[ 35390], 95.00th=[ 44827], | 99.00th=[ 72877], 99.50th=[ 99091], 99.90th=[168821], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 23, max= 240, per=27.60%, avg=120.87, stdev=37.75, samples=104 iops : min= 5, max= 60, avg=29.81, stdev= 9.51, samples=104 lat (usec) : 50=0.10%, 100=0.94%, 250=1.50%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.46% lat (msec) : 2=4.04%, 4=7.94%, 10=18.75%, 20=34.51%, 50=28.97% lat (msec) : 100=2.18%, 250=0.33%, 500=0.03%, 1000=0.03% cpu : usr=0.15%, sys=21.83%, ctx=7724, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151403: Tue Sep 8 19:38:52 2026 read: IOPS=26, BW=107KiB/s (110kB/s)(6028KiB/56292msec) clat (usec): min=32, max=278205, avg=18298.58, stdev=15068.59 lat (usec): min=32, max=278206, avg=18300.40, stdev=15068.74 clat percentiles (usec): | 1.00th=[ 74], 5.00th=[ 188], 10.00th=[ 7111], 20.00th=[ 9503], | 30.00th=[ 11207], 40.00th=[ 13042], 50.00th=[ 15401], 60.00th=[ 17695], | 70.00th=[ 21103], 80.00th=[ 25560], 90.00th=[ 31589], 95.00th=[ 39584], | 99.00th=[ 67634], 99.50th=[ 87557], 99.90th=[170918], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 216, per=26.03%, avg=108.81, stdev=37.14, samples=110 iops : min= 7, max= 54, avg=26.78, stdev= 9.38, samples=110 write: IOPS=27, BW=111KiB/s (114kB/s)(6260KiB/56292msec); 0 zone resets clat (usec): min=672, max=857332, avg=18169.77, stdev=27790.93 lat (usec): min=673, max=857333, avg=18171.24, stdev=27790.85 clat percentiles (usec): | 1.00th=[ 906], 5.00th=[ 1483], 10.00th=[ 2343], 20.00th=[ 3261], | 30.00th=[ 5538], 40.00th=[ 9503], 50.00th=[ 13042], 60.00th=[ 16581], | 70.00th=[ 21627], 80.00th=[ 28443], 90.00th=[ 38536], 95.00th=[ 50594], | 99.00th=[ 81265], 99.50th=[128451], 99.90th=[164627], 99.95th=[859833], | 99.99th=[859833] bw ( KiB/s): min= 14, max= 200, per=25.57%, avg=112.02, stdev=36.56, samples=111 iops : min= 3, max= 50, avg=27.58, stdev= 9.23, samples=111 lat (usec) : 50=0.23%, 100=1.01%, 250=1.50%, 500=0.20%, 750=0.10% lat (usec) : 1000=0.81% lat (msec) : 2=2.93%, 4=8.04%, 10=17.55%, 20=34.57%, 50=29.30% lat (msec) : 100=3.29%, 250=0.42%, 500=0.03%, 1000=0.03% cpu : usr=0.10%, sys=20.62%, ctx=7807, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151405: Tue Sep 8 19:38:52 2026 read: IOPS=26, BW=106KiB/s (108kB/s)(6052KiB/57319msec) clat (usec): min=32, max=251823, avg=18503.75, stdev=16211.43 lat (usec): min=33, max=251824, avg=18506.39, stdev=16211.95 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 133], 10.00th=[ 6915], 20.00th=[ 9241], | 30.00th=[ 11076], 40.00th=[ 13042], 50.00th=[ 15139], 60.00th=[ 17695], | 70.00th=[ 21365], 80.00th=[ 25035], 90.00th=[ 32113], 95.00th=[ 41681], | 99.00th=[ 81265], 99.50th=[112722], 99.90th=[170918], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 24, max= 192, per=25.67%, avg=107.31, stdev=35.15, samples=112 iops : min= 6, max= 48, avg=26.40, stdev= 8.87, samples=112 write: IOPS=27, BW=109KiB/s (111kB/s)(6236KiB/57319msec); 0 zone resets clat (usec): min=593, max=855362, avg=18628.66, stdev=27541.32 lat (usec): min=594, max=855362, avg=18629.81, stdev=27541.35 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1778], 10.00th=[ 2409], 20.00th=[ 3425], | 30.00th=[ 5538], 40.00th=[ 9896], 50.00th=[ 13698], 60.00th=[ 17957], | 70.00th=[ 22676], 80.00th=[ 29230], 90.00th=[ 40633], 95.00th=[ 50594], | 99.00th=[ 77071], 99.50th=[105382], 99.90th=[191890], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 216, per=25.03%, avg=109.62, stdev=35.67, samples=113 iops : min= 1, max= 54, avg=26.97, stdev= 9.06, samples=113 lat (usec) : 50=0.23%, 100=1.17%, 250=2.02%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.39% lat (msec) : 2=3.06%, 4=8.17%, 10=16.86%, 20=33.72%, 50=30.08% lat (msec) : 100=3.58%, 250=0.52%, 500=0.03%, 1000=0.03% cpu : usr=0.11%, sys=19.97%, ctx=7793, 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=419KiB/s (429kB/s), 106KiB/s-111KiB/s (108kB/s-114kB/s), io=23.4MiB (24.6MB), run=53509-57319msec WRITE: bw=439KiB/s (449kB/s), 109KiB/s-119KiB/s (111kB/s-121kB/s), io=24.6MiB (25.7MB), run=53509-57319msec rand-rw: (groupid=0, jobs=1): err= 0: pid=151398: Tue Sep 8 19:40:32 2026 read: IOPS=9, BW=38.3KiB/s (39.2kB/s)(5992KiB/156456msec) clat (msec): min=4, max=863, avg=23.08, stdev=27.57 lat (msec): min=4, max=863, avg=23.08, stdev=27.57 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 22], | 70.00th=[ 25], 80.00th=[ 30], 90.00th=[ 41], 95.00th=[ 53], | 99.00th=[ 93], 99.50th=[ 116], 99.90th=[ 241], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 111, per=25.91%, avg=39.38, stdev=21.29, samples=298 iops : min= 1, max= 27, avg= 9.37, stdev= 5.39, samples=298 write: IOPS=10, BW=40.2KiB/s (41.2kB/s)(6296KiB/156456msec); 0 zone resets clat (msec): min=23, max=1062, avg=77.24, stdev=46.32 lat (msec): min=23, max=1062, avg=77.24, stdev=46.32 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 37], 10.00th=[ 43], 20.00th=[ 51], | 30.00th=[ 56], 40.00th=[ 62], 50.00th=[ 68], 60.00th=[ 75], | 70.00th=[ 84], 80.00th=[ 94], 90.00th=[ 121], 95.00th=[ 146], | 99.00th=[ 239], 99.50th=[ 288], 99.90th=[ 414], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 5, max= 80, per=25.39%, avg=40.37, stdev=13.51, samples=306 iops : min= 1, max= 20, avg= 9.62, stdev= 3.44, samples=306 lat (msec) : 10=6.74%, 20=20.90%, 50=28.48%, 100=34.99%, 250=8.40% lat (msec) : 500=0.42%, 1000=0.03%, 2000=0.03% cpu : usr=0.07%, sys=3.08%, ctx=5488, 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=151400: Tue Sep 8 19:40:32 2026 read: IOPS=9, BW=38.0KiB/s (38.9kB/s)(5940KiB/156226msec) clat (msec): min=5, max=855, avg=22.88, stdev=27.63 lat (msec): min=5, max=855, avg=22.88, stdev=27.63 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 25], 80.00th=[ 31], 90.00th=[ 40], 95.00th=[ 52], | 99.00th=[ 85], 99.50th=[ 107], 99.90th=[ 266], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 103, per=25.99%, avg=39.51, stdev=21.04, samples=295 iops : min= 1, max= 25, avg= 9.40, stdev= 5.30, samples=295 write: IOPS=10, BW=40.6KiB/s (41.6kB/s)(6348KiB/156226msec); 0 zone resets clat (msec): min=19, max=1079, avg=76.83, stdev=45.67 lat (msec): min=19, max=1079, avg=76.84, stdev=45.67 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 36], 10.00th=[ 41], 20.00th=[ 49], | 30.00th=[ 55], 40.00th=[ 61], 50.00th=[ 68], 60.00th=[ 74], | 70.00th=[ 84], 80.00th=[ 99], 90.00th=[ 123], 95.00th=[ 150], | 99.00th=[ 207], 99.50th=[ 241], 99.90th=[ 439], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 80, per=25.55%, avg=40.63, stdev=13.81, samples=307 iops : min= 1, max= 20, avg= 9.68, stdev= 3.52, samples=307 lat (msec) : 10=7.58%, 20=20.31%, 50=29.43%, 100=32.42%, 250=9.96% lat (msec) : 500=0.23%, 1000=0.03%, 2000=0.03% cpu : usr=0.07%, sys=3.18%, ctx=5613, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151402: Tue Sep 8 19:40:32 2026 read: IOPS=9, BW=38.3KiB/s (39.3kB/s)(6028KiB/157193msec) clat (msec): min=5, max=225, avg=22.74, stdev=17.97 lat (msec): min=5, max=225, avg=22.74, stdev=17.97 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 25], 80.00th=[ 31], 90.00th=[ 40], 95.00th=[ 53], | 99.00th=[ 101], 99.50th=[ 126], 99.90th=[ 169], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 7, max= 96, per=26.34%, avg=40.03, stdev=20.42, samples=296 iops : min= 1, max= 24, avg= 9.54, stdev= 5.12, samples=296 write: IOPS=9, BW=39.8KiB/s (40.8kB/s)(6260KiB/157193msec); 0 zone resets clat (msec): min=22, max=1176, avg=78.34, stdev=51.30 lat (msec): min=22, max=1176, avg=78.34, stdev=51.30 clat percentiles (msec): | 1.00th=[ 29], 5.00th=[ 37], 10.00th=[ 42], 20.00th=[ 50], | 30.00th=[ 57], 40.00th=[ 63], 50.00th=[ 69], 60.00th=[ 77], | 70.00th=[ 85], 80.00th=[ 99], 90.00th=[ 122], 95.00th=[ 146], | 99.00th=[ 220], 99.50th=[ 309], 99.90th=[ 852], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 79, per=25.10%, avg=39.91, stdev=13.03, samples=308 iops : min= 1, max= 19, avg= 9.50, stdev= 3.32, samples=308 lat (msec) : 10=6.58%, 20=21.71%, 50=28.42%, 100=33.07%, 250=9.86% lat (msec) : 500=0.29%, 1000=0.03%, 2000=0.03% cpu : usr=0.06%, sys=3.09%, ctx=5496, 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=151404: Tue Sep 8 19:40:32 2026 read: IOPS=9, BW=38.6KiB/s (39.5kB/s)(6052KiB/156942msec) clat (msec): min=5, max=216, avg=22.61, stdev=18.62 lat (msec): min=5, max=216, avg=22.61, stdev=18.62 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 24], 80.00th=[ 30], 90.00th=[ 40], 95.00th=[ 54], | 99.00th=[ 106], 99.50th=[ 132], 99.90th=[ 188], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 7, max= 103, per=26.46%, avg=40.21, stdev=19.98, samples=295 iops : min= 1, max= 25, avg= 9.58, stdev= 5.03, samples=295 write: IOPS=9, BW=39.7KiB/s (40.7kB/s)(6236KiB/156942msec); 0 zone resets clat (msec): min=21, max=1146, avg=78.52, stdev=51.15 lat (msec): min=21, max=1146, avg=78.52, stdev=51.15 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 36], 10.00th=[ 43], 20.00th=[ 50], | 30.00th=[ 56], 40.00th=[ 63], 50.00th=[ 69], 60.00th=[ 75], | 70.00th=[ 85], 80.00th=[ 99], 90.00th=[ 125], 95.00th=[ 146], | 99.00th=[ 232], 99.50th=[ 271], 99.90th=[ 869], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 80, per=25.09%, avg=39.90, stdev=13.11, samples=306 iops : min= 1, max= 20, avg= 9.50, stdev= 3.37, samples=306 lat (msec) : 10=8.30%, 20=20.48%, 50=28.19%, 100=32.71%, 250=9.93% lat (msec) : 500=0.33%, 1000=0.03%, 2000=0.03% cpu : usr=0.06%, sys=3.19%, ctx=5542, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=153KiB/s (156kB/s), 38.0KiB/s-38.6KiB/s (38.9kB/s-39.5kB/s), io=23.4MiB (24.6MB), run=156226-157193msec WRITE: bw=160KiB/s (164kB/s), 39.7KiB/s-40.6KiB/s (40.7kB/s-41.6kB/s), io=24.6MiB (25.7MB), run=156226-157193msec 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=151446: Tue Sep 8 19:40:57 2026 read: IOPS=19, BW=307KiB/s (314kB/s)(5920KiB/19280msec) clat (usec): min=29, max=156775, avg=26398.80, stdev=21607.84 lat (usec): min=30, max=156778, avg=26400.50, stdev=21608.14 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 66], 10.00th=[ 82], 20.00th=[ 174], | 30.00th=[ 16712], 40.00th=[ 20841], 50.00th=[ 24773], 60.00th=[ 28443], | 70.00th=[ 33162], 80.00th=[ 42206], 90.00th=[ 54789], 95.00th=[ 60031], | 99.00th=[ 89654], 99.50th=[121111], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 127, max= 541, per=24.89%, avg=306.34, stdev=105.50, samples=38 iops : min= 7, max= 33, avg=18.45, stdev= 6.64, samples=38 write: IOPS=20, BW=330KiB/s (338kB/s)(6368KiB/19280msec); 0 zone resets clat (usec): min=1309, max=133944, avg=23432.40, stdev=22048.92 lat (usec): min=1310, max=133945, avg=23436.24, stdev=22048.70 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2573], 10.00th=[ 3359], 20.00th=[ 5145], | 30.00th=[ 7439], 40.00th=[ 11207], 50.00th=[ 16581], 60.00th=[ 22152], | 70.00th=[ 29230], 80.00th=[ 38011], 90.00th=[ 55313], 95.00th=[ 67634], | 99.00th=[ 95945], 99.50th=[108528], 99.90th=[133694], 99.95th=[133694], | 99.99th=[133694] bw ( KiB/s): min= 31, max= 512, per=25.41%, avg=329.11, stdev=94.62, samples=38 iops : min= 1, max= 32, avg=19.87, stdev= 6.01, samples=38 lat (usec) : 50=1.04%, 100=5.21%, 250=4.04%, 500=0.13%, 750=0.13% lat (msec) : 2=1.95%, 4=5.08%, 10=12.76%, 20=16.15%, 50=40.62% lat (msec) : 100=12.24%, 250=0.65% cpu : usr=0.10%, sys=12.20%, ctx=1686, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151448: Tue Sep 8 19:40:57 2026 read: IOPS=18, BW=295KiB/s (302kB/s)(5744KiB/19450msec) clat (usec): min=40, max=109846, avg=26903.76, stdev=21601.99 lat (usec): min=40, max=109848, avg=26918.31, stdev=21586.93 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 63], 10.00th=[ 86], 20.00th=[ 178], | 30.00th=[ 16712], 40.00th=[ 20579], 50.00th=[ 23725], 60.00th=[ 28705], | 70.00th=[ 35390], 80.00th=[ 44827], 90.00th=[ 55837], 95.00th=[ 65799], | 99.00th=[ 90702], 99.50th=[109577], 99.90th=[109577], 99.95th=[109577], | 99.99th=[109577] bw ( KiB/s): min= 63, max= 544, per=23.88%, avg=293.97, stdev=94.49, samples=38 iops : min= 3, max= 34, avg=17.68, stdev= 6.05, samples=38 write: IOPS=21, BW=336KiB/s (345kB/s)(6544KiB/19450msec); 0 zone resets clat (usec): min=1379, max=217941, avg=23579.31, stdev=25755.59 lat (usec): min=1380, max=217943, avg=23590.19, stdev=25757.39 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2147], 10.00th=[ 2999], 20.00th=[ 4490], | 30.00th=[ 6456], 40.00th=[ 9110], 50.00th=[ 15008], 60.00th=[ 22152], | 70.00th=[ 28967], 80.00th=[ 40633], 90.00th=[ 55313], 95.00th=[ 67634], | 99.00th=[101188], 99.50th=[152044], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 125, max= 512, per=25.81%, avg=334.21, stdev=94.16, samples=38 iops : min= 7, max= 32, avg=20.18, stdev= 5.97, samples=38 lat (usec) : 50=0.91%, 100=4.95%, 250=4.30%, 500=0.26% lat (msec) : 2=2.21%, 4=6.25%, 10=14.19%, 20=15.10%, 50=37.76% lat (msec) : 100=13.15%, 250=0.91% cpu : usr=0.10%, sys=12.30%, ctx=1705, 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=151450: Tue Sep 8 19:40:57 2026 read: IOPS=20, BW=331KiB/s (338kB/s)(6256KiB/18928msec) clat (usec): min=26, max=185076, avg=25934.13, stdev=23666.02 lat (usec): min=26, max=185077, avg=25935.70, stdev=23665.77 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 68], 10.00th=[ 83], 20.00th=[ 147], | 30.00th=[ 15008], 40.00th=[ 19530], 50.00th=[ 23987], 60.00th=[ 27132], | 70.00th=[ 33424], 80.00th=[ 40633], 90.00th=[ 53740], 95.00th=[ 66847], | 99.00th=[111674], 99.50th=[133694], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 110, max= 608, per=27.12%, avg=333.89, stdev=119.99, samples=37 iops : min= 6, max= 38, avg=20.16, stdev= 7.57, samples=37 write: IOPS=19, BW=319KiB/s (326kB/s)(6032KiB/18928msec); 0 zone resets clat (usec): min=1168, max=191806, avg=23146.49, stdev=24386.85 lat (usec): min=1170, max=191809, avg=23151.60, stdev=24385.09 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 2311], 10.00th=[ 3032], 20.00th=[ 4555], | 30.00th=[ 6652], 40.00th=[ 9110], 50.00th=[ 14746], 60.00th=[ 21627], | 70.00th=[ 29230], 80.00th=[ 39584], 90.00th=[ 53216], 95.00th=[ 66323], | 99.00th=[120062], 99.50th=[187696], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 95, max= 544, per=24.52%, avg=317.57, stdev=115.38, samples=37 iops : min= 5, max= 34, avg=19.14, stdev= 7.28, samples=37 lat (usec) : 50=0.78%, 100=5.86%, 250=5.60%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.52% lat (msec) : 2=2.08%, 4=6.12%, 10=13.28%, 20=14.58%, 50=38.67% lat (msec) : 100=11.07%, 250=1.17% cpu : usr=0.14%, sys=11.91%, ctx=1610, 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=151451: Tue Sep 8 19:40:57 2026 read: IOPS=19, BW=312KiB/s (320kB/s)(6032KiB/19319msec) clat (usec): min=37, max=167107, avg=26733.55, stdev=22664.55 lat (usec): min=37, max=167109, avg=26735.31, stdev=22663.95 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 62], 10.00th=[ 77], 20.00th=[ 151], | 30.00th=[ 16319], 40.00th=[ 21365], 50.00th=[ 24773], 60.00th=[ 28705], | 70.00th=[ 34866], 80.00th=[ 42730], 90.00th=[ 52691], 95.00th=[ 63177], | 99.00th=[108528], 99.50th=[121111], 99.90th=[166724], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 127, max= 448, per=25.08%, avg=308.79, stdev=83.73, samples=38 iops : min= 7, max= 28, avg=18.61, stdev= 5.33, samples=38 write: IOPS=20, BW=324KiB/s (332kB/s)(6256KiB/19319msec); 0 zone resets clat (usec): min=1381, max=134140, avg=23268.00, stdev=23194.55 lat (usec): min=1384, max=134142, avg=23271.59, stdev=23195.90 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 2606], 10.00th=[ 3261], 20.00th=[ 4621], | 30.00th=[ 6652], 40.00th=[ 10028], 50.00th=[ 15533], 60.00th=[ 21627], | 70.00th=[ 27132], 80.00th=[ 39060], 90.00th=[ 54789], 95.00th=[ 71828], | 99.00th=[108528], 99.50th=[111674], 99.90th=[133694], 99.95th=[133694], | 99.99th=[133694] bw ( KiB/s): min= 126, max= 574, per=24.98%, avg=323.53, stdev=98.35, samples=38 iops : min= 7, max= 35, avg=19.53, stdev= 6.25, samples=38 lat (usec) : 50=0.65%, 100=6.90%, 250=2.99%, 500=0.65%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=1.56%, 4=7.16%, 10=12.37%, 20=14.32%, 50=40.23% lat (msec) : 100=11.33%, 250=1.43% cpu : usr=0.15%, sys=12.06%, ctx=1684, 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=1231KiB/s (1261kB/s), 295KiB/s-331KiB/s (302kB/s-338kB/s), io=23.4MiB (24.5MB), run=18928-19450msec WRITE: bw=1296KiB/s (1327kB/s), 319KiB/s-336KiB/s (326kB/s-345kB/s), io=24.6MiB (25.8MB), run=18928-19450msec rand-rw: (groupid=0, jobs=1): err= 0: pid=151445: Tue Sep 8 19:41:22 2026 read: IOPS=8, BW=134KiB/s (137kB/s)(5920KiB/44117msec) clat (msec): min=5, max=196, avg=26.20, stdev=24.52 lat (msec): min=5, max=196, avg=26.20, stdev=24.52 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 25], 80.00th=[ 37], 90.00th=[ 57], 95.00th=[ 75], | 99.00th=[ 123], 99.50th=[ 130], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 31, max= 411, per=25.32%, avg=136.21, stdev=77.07, samples=85 iops : min= 1, max= 25, avg= 7.86, stdev= 4.85, samples=85 write: IOPS=9, BW=144KiB/s (148kB/s)(6368KiB/44117msec); 0 zone resets clat (msec): min=34, max=250, avg=86.02, stdev=35.60 lat (msec): min=34, max=250, avg=86.02, stdev=35.60 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 46], 10.00th=[ 51], 20.00th=[ 58], | 30.00th=[ 66], 40.00th=[ 71], 50.00th=[ 79], 60.00th=[ 84], | 70.00th=[ 96], 80.00th=[ 109], 90.00th=[ 138], 95.00th=[ 163], | 99.00th=[ 220], 99.50th=[ 232], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 286, per=25.41%, avg=143.84, stdev=58.17, samples=87 iops : min= 1, max= 17, avg= 8.34, stdev= 3.79, samples=87 lat (msec) : 10=6.38%, 20=22.40%, 50=18.36%, 100=37.89%, 250=14.84% lat (msec) : 500=0.13% cpu : usr=0.04%, sys=2.37%, ctx=1396, 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=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=151447: Tue Sep 8 19:41:22 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(5744KiB/44447msec) clat (msec): min=5, max=323, avg=26.22, stdev=30.58 lat (msec): min=5, max=323, avg=26.22, stdev=30.58 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 18], | 70.00th=[ 23], 80.00th=[ 34], 90.00th=[ 62], 95.00th=[ 92], | 99.00th=[ 130], 99.50th=[ 194], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 27, max= 447, per=24.95%, avg=134.24, stdev=85.35, samples=84 iops : min= 1, max= 27, avg= 7.75, stdev= 5.40, samples=84 write: IOPS=9, BW=147KiB/s (151kB/s)(6544KiB/44447msec); 0 zone resets clat (msec): min=29, max=279, avg=85.14, stdev=38.88 lat (msec): min=29, max=279, avg=85.15, stdev=38.88 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 46], 10.00th=[ 49], 20.00th=[ 56], | 30.00th=[ 62], 40.00th=[ 69], 50.00th=[ 77], 60.00th=[ 83], | 70.00th=[ 91], 80.00th=[ 107], 90.00th=[ 138], 95.00th=[ 159], | 99.00th=[ 232], 99.50th=[ 251], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 320, per=25.94%, avg=146.84, stdev=63.61, samples=88 iops : min= 1, max= 20, avg= 8.53, stdev= 4.12, samples=88 lat (msec) : 10=8.85%, 20=22.01%, 50=16.15%, 100=38.41%, 250=14.19% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=2.23%, ctx=1347, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151449: Tue Sep 8 19:41:22 2026 read: IOPS=9, BW=149KiB/s (152kB/s)(6256KiB/42121msec) clat (msec): min=5, max=326, avg=24.49, stdev=26.32 lat (msec): min=5, max=326, avg=24.49, stdev=26.32 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 30], 90.00th=[ 51], 95.00th=[ 70], | 99.00th=[ 131], 99.50th=[ 165], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 415, per=28.78%, avg=154.86, stdev=91.35, samples=80 iops : min= 1, max= 25, avg= 9.04, stdev= 5.80, samples=80 write: IOPS=8, BW=143KiB/s (147kB/s)(6032KiB/42121msec); 0 zone resets clat (msec): min=34, max=344, avg=86.22, stdev=40.58 lat (msec): min=34, max=344, avg=86.23, stdev=40.58 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 45], 10.00th=[ 50], 20.00th=[ 57], | 30.00th=[ 63], 40.00th=[ 69], 50.00th=[ 75], 60.00th=[ 83], | 70.00th=[ 92], 80.00th=[ 108], 90.00th=[ 144], 95.00th=[ 163], | 99.00th=[ 236], 99.50th=[ 268], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 255, per=25.14%, avg=142.27, stdev=56.89, samples=83 iops : min= 1, max= 15, avg= 8.24, stdev= 3.69, samples=83 lat (msec) : 10=5.86%, 20=26.17%, 50=18.62%, 100=36.46%, 250=12.50% lat (msec) : 500=0.39% cpu : usr=0.08%, sys=2.39%, ctx=1432, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151452: Tue Sep 8 19:41:22 2026 read: IOPS=8, BW=137KiB/s (141kB/s)(6032KiB/43894msec) clat (msec): min=6, max=278, avg=27.84, stdev=29.86 lat (msec): min=6, max=278, avg=27.84, stdev=29.86 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 39], 90.00th=[ 63], 95.00th=[ 96], | 99.00th=[ 136], 99.50th=[ 165], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 416, per=25.92%, avg=139.44, stdev=87.33, samples=85 iops : min= 1, max= 26, avg= 8.07, stdev= 5.57, samples=85 write: IOPS=8, BW=143KiB/s (146kB/s)(6256KiB/43894msec); 0 zone resets clat (msec): min=34, max=239, avg=85.01, stdev=34.46 lat (msec): min=34, max=239, avg=85.02, stdev=34.47 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 46], 10.00th=[ 51], 20.00th=[ 58], | 30.00th=[ 64], 40.00th=[ 72], 50.00th=[ 79], 60.00th=[ 86], | 70.00th=[ 94], 80.00th=[ 107], 90.00th=[ 132], 95.00th=[ 159], | 99.00th=[ 215], 99.50th=[ 228], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 31, max= 256, per=25.15%, avg=142.32, stdev=59.19, samples=87 iops : min= 1, max= 16, avg= 8.25, stdev= 3.83, samples=87 lat (msec) : 10=6.64%, 20=23.70%, 50=16.28%, 100=38.80%, 250=14.45% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=2.29%, ctx=1459, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=539KiB/s (552kB/s), 129KiB/s-149KiB/s (132kB/s-152kB/s), io=23.4MiB (24.5MB), run=42121-44447msec WRITE: bw=567KiB/s (581kB/s), 143KiB/s-147KiB/s (146kB/s-151kB/s), io=24.6MiB (25.8MB), run=42121-44447msec 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=151471: Tue Sep 8 19:41:33 2026 read: IOPS=1, BW=1593KiB/s (1631kB/s)(7168KiB/4499msec) clat (usec): min=495, max=258074, avg=135812.21, stdev=83886.65 lat (usec): min=496, max=258075, avg=135813.37, stdev=83886.70 clat percentiles (usec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 85459], | 30.00th=[ 90702], 40.00th=[ 90702], 50.00th=[154141], 60.00th=[177210], | 70.00th=[177210], 80.00th=[183501], 90.00th=[258999], 95.00th=[258999], | 99.00th=[258999], 99.50th=[258999], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 2048, max= 5251, per=96.75%, avg=3784.67, stdev=1618.52, samples=3 iops : min= 2, max= 5, avg= 3.33, stdev= 1.53, samples=3 write: IOPS=1, BW=1138KiB/s (1165kB/s)(5120KiB/4499msec); 0 zone resets clat (msec): min=152, max=1778, avg=700.74, stdev=691.14 lat (msec): min=152, max=1778, avg=700.80, stdev=691.13 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 230], 40.00th=[ 230], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 1011], 80.00th=[ 1011], 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= 1875, max= 4096, per=48.67%, avg=2666.00, stdev=1240.75, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (usec) : 500=8.33% lat (msec) : 100=16.67%, 250=41.67%, 500=16.67%, 2000=16.67% cpu : usr=0.00%, sys=21.70%, ctx=518, 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=151472: Tue Sep 8 19:41:33 2026 read: IOPS=0, BW=391KiB/s (401kB/s)(2048KiB/5234msec) clat (usec): min=597, max=1875.6k, avg=938116.08, stdev=1325851.38 lat (usec): min=598, max=1875.6k, avg=938117.94, stdev=1325852.08 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], | 20.00th=[ 594], 30.00th=[ 594], 40.00th=[ 594], | 50.00th=[ 594], 60.00th=[1870660], 70.00th=[1870660], | 80.00th=[1870660], 90.00th=[1870660], 95.00th=[1870660], | 99.00th=[1870660], 99.50th=[1870660], 99.90th=[1870660], | 99.95th=[1870660], 99.99th=[1870660] bw ( KiB/s): min= 1855, max= 2048, per=49.88%, avg=1951.50, stdev=136.47, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1956KiB/s (2003kB/s)(10.0MiB/5234msec); 0 zone resets clat (msec): min=133, max=818, avg=334.60, stdev=195.23 lat (msec): min=133, max=818, avg=334.68, stdev=195.24 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 182], | 30.00th=[ 205], 40.00th=[ 239], 50.00th=[ 266], 60.00th=[ 326], | 70.00th=[ 368], 80.00th=[ 372], 90.00th=[ 443], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1875, max= 5829, per=54.44%, avg=2982.17, stdev=1630.04, samples=6 iops : min= 1, max= 5, avg= 2.17, stdev= 1.83, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=41.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=21.17%, ctx=615, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151473: Tue Sep 8 19:41:33 2026 read: IOPS=1, BW=1431KiB/s (1465kB/s)(6144KiB/4294msec) clat (msec): min=10, max=265, avg=156.17, stdev=89.95 lat (msec): min=10, max=265, avg=156.17, stdev=89.95 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 11], 10.00th=[ 11], 20.00th=[ 118], | 30.00th=[ 118], 40.00th=[ 133], 50.00th=[ 133], 60.00th=[ 197], | 70.00th=[ 215], 80.00th=[ 215], 90.00th=[ 266], 95.00th=[ 266], | 99.00th=[ 266], 99.50th=[ 266], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 2027, max= 4055, per=83.78%, avg=3277.33, stdev=1093.51, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1431KiB/s (1465kB/s)(6144KiB/4294msec); 0 zone resets clat (msec): min=124, max=2107, avg=550.79, stdev=775.47 lat (msec): min=124, max=2107, avg=550.87, stdev=775.48 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 224], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 2106], 95.00th=[ 2106], | 99.00th=[ 2106], 99.50th=[ 2106], 99.90th=[ 2106], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 1875, max= 6083, per=54.92%, avg=3008.25, stdev=2051.28, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 lat (msec) : 20=8.33%, 250=66.67%, 500=8.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=20.75%, ctx=459, 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=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=151474: Tue Sep 8 19:41:33 2026 read: IOPS=0, BW=1007KiB/s (1031kB/s)(5120KiB/5086msec) clat (msec): min=99, max=524, avg=291.48, stdev=197.59 lat (msec): min=99, max=524, avg=291.48, stdev=197.59 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 101], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 207], 60.00th=[ 207], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 2048, max= 6119, per=100.00%, avg=4083.50, stdev=2878.63, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=1, BW=1409KiB/s (1443kB/s)(7168KiB/5086msec); 0 zone resets clat (msec): min=93, max=2028, avg=497.68, stdev=699.72 lat (msec): min=94, max=2028, avg=497.78, stdev=699.75 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 155], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 625], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 1875, max= 4055, per=45.62%, avg=2499.00, stdev=1040.02, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=16.67%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=20.47%, ctx=302, 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=3913KiB/s (4007kB/s), 391KiB/s-1593KiB/s (401kB/s-1631kB/s), io=20.0MiB (20.0MB), run=4294-5234msec WRITE: bw=5478KiB/s (5610kB/s), 1138KiB/s-1956KiB/s (1165kB/s-2003kB/s), io=28.0MiB (29.4MB), run=4294-5234msec rand-rw: (groupid=0, jobs=1): err= 0: pid=151476: Tue Sep 8 19:41:34 2026 read: IOPS=1, BW=1491KiB/s (1526kB/s)(7168KiB/4809msec) clat (msec): min=37, max=442, avg=161.37, stdev=137.14 lat (msec): min=37, max=442, avg=161.37, stdev=137.14 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 38], 10.00th=[ 38], 20.00th=[ 71], | 30.00th=[ 96], 40.00th=[ 96], 50.00th=[ 128], 60.00th=[ 132], | 70.00th=[ 132], 80.00th=[ 224], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 2039, max= 5667, per=100.00%, avg=3896.67, stdev=1815.58, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1065KiB/s (1090kB/s)(5120KiB/4809msec); 0 zone resets clat (msec): min=243, max=2395, avg=717.20, stdev=939.13 lat (msec): min=243, max=2395, avg=717.54, stdev=938.99 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 2400], 95.00th=[ 2400], | 99.00th=[ 2400], 99.50th=[ 2400], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 2039, max= 4096, per=54.13%, avg=2727.67, stdev=1185.02, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (msec) : 50=8.33%, 100=16.67%, 250=33.33%, 500=33.33%, >=2000=8.33% cpu : usr=0.02%, sys=8.24%, ctx=130, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151477: Tue Sep 8 19:41:34 2026 read: IOPS=0, BW=361KiB/s (369kB/s)(2048KiB/5678msec) clat (msec): min=161, max=1735, avg=948.93, stdev=1113.01 lat (msec): min=161, max=1735, avg=948.94, stdev=1113.01 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 163], 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= 2023, max= 2039, per=56.43%, avg=2031.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1803KiB/s (1847kB/s)(10.0MiB/5678msec); 0 zone resets clat (msec): min=93, max=912, avg=365.91, stdev=294.07 lat (msec): min=93, max=912, avg=366.07, stdev=294.11 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 99], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 207], 60.00th=[ 230], | 70.00th=[ 531], 80.00th=[ 609], 90.00th=[ 693], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1950, max= 8159, per=72.35%, avg=3645.60, stdev=2679.57, samples=5 iops : min= 1, max= 7, avg= 2.80, stdev= 2.49, samples=5 lat (msec) : 100=16.67%, 250=41.67%, 750=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.02%, sys=7.45%, ctx=100, 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=151478: Tue Sep 8 19:41:34 2026 read: IOPS=1, BW=1108KiB/s (1134kB/s)(6144KiB/5546msec) clat (msec): min=60, max=387, avg=170.48, stdev=125.06 lat (msec): min=60, max=387, avg=170.48, stdev=125.06 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 91], | 30.00th=[ 91], 40.00th=[ 99], 50.00th=[ 99], 60.00th=[ 138], | 70.00th=[ 249], 80.00th=[ 249], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 2039, max= 4096, per=75.71%, avg=2724.67, stdev=1187.61, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1108KiB/s (1134kB/s)(6144KiB/5546msec); 0 zone resets clat (msec): min=157, max=2729, avg=745.15, stdev=990.77 lat (msec): min=158, max=2729, avg=745.40, stdev=990.69 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 506], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 1992, max= 2048, per=40.32%, avg=2031.75, stdev=26.84, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (msec) : 100=25.00%, 250=41.67%, 500=8.33%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=6.58%, ctx=207, 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=151479: Tue Sep 8 19:41:34 2026 read: IOPS=0, BW=900KiB/s (921kB/s)(5120KiB/5690msec) clat (msec): min=45, max=391, avg=193.64, stdev=170.69 lat (msec): min=45, max=391, avg=193.65, stdev=170.69 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 46], 10.00th=[ 46], 20.00th=[ 46], | 30.00th=[ 72], 40.00th=[ 72], 50.00th=[ 92], 60.00th=[ 92], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 2039, max= 4079, per=75.55%, avg=2719.00, stdev=1177.79, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1260KiB/s (1290kB/s)(7168KiB/5690msec); 0 zone resets clat (msec): min=81, max=2678, avg=663.28, stdev=935.58 lat (msec): min=81, max=2678, avg=663.39, stdev=935.57 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 106], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 249], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 927], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 1992, max= 4079, per=60.52%, avg=3049.50, stdev=1188.98, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=25.00%, 500=25.00%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.02%, sys=5.31%, ctx=100, 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=3599KiB/s (3686kB/s), 361KiB/s-1491KiB/s (369kB/s-1526kB/s), io=20.0MiB (20.0MB), run=4809-5690msec WRITE: bw=5039KiB/s (5160kB/s), 1065KiB/s-1803KiB/s (1090kB/s-1847kB/s), io=28.0MiB (29.4MB), run=4809-5690msec 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=151485: Tue Sep 8 19:41:44 2026 read: IOPS=0, BW=3465KiB/s (3548kB/s)(12.0MiB/3546msec) clat (msec): min=479, max=2423, avg=1175.95, stdev=1082.67 lat (msec): min=479, max=2423, avg=1175.95, stdev=1082.67 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 2433], 80.00th=[ 2433], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=16.39%, ctx=1266, 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=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=151486: Tue Sep 8 19:41:44 2026 read: IOPS=0, BW=1210KiB/s (1239kB/s)(4096KiB/3384msec) clat (nsec): min=2423.3M, max=2423.3M, avg=2423333083.00, stdev= 0.00 lat (nsec): min=2423.3M, max=2423.3M, avg=2423334048.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2433], 5.00th=[ 2433], 10.00th=[ 2433], 20.00th=[ 2433], | 30.00th=[ 2433], 40.00th=[ 2433], 50.00th=[ 2433], 60.00th=[ 2433], | 70.00th=[ 2433], 80.00th=[ 2433], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2421KiB/s (2479kB/s)(8192KiB/3384msec); 0 zone resets clat (msec): min=246, max=696, avg=471.65, stdev=318.37 lat (msec): min=246, max=697, avg=472.12, stdev=318.42 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 701], | 70.00th=[ 701], 80.00th=[ 701], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=10.46%, ctx=609, 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=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=151487: Tue Sep 8 19:41:44 2026 write: IOPS=3, BW=13.5MiB/s (14.2MB/s)(12.0MiB/886msec); 0 zone resets clat (msec): min=210, max=419, avg=287.55, stdev=115.14 lat (msec): min=210, max=420, avg=287.92, stdev=115.12 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 232], 50.00th=[ 232], 60.00th=[ 232], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7474, max= 7474, per=77.19%, avg=7474.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 500=33.33% cpu : usr=0.11%, sys=19.44%, ctx=38, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=151488: Tue Sep 8 19:41:44 2026 write: IOPS=0, BW=4070KiB/s (4168kB/s)(12.0MiB/3019msec); 0 zone resets clat (msec): min=189, max=2551, avg=1005.00, stdev=1340.16 lat (msec): min=189, max=2552, avg=1005.37, stdev=1340.18 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 2567], 80.00th=[ 2567], 90.00th=[ 2567], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min=10937, max=10937, per=100.00%, avg=10937.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=5.83%, ctx=37, 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=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=4620KiB/s (4731kB/s), 1210KiB/s-3465KiB/s (1239kB/s-3548kB/s), io=16.0MiB (16.8MB), run=3384-3546msec WRITE: bw=9683KiB/s (9916kB/s), 2421KiB/s-13.5MiB/s (2479kB/s-14.2MB/s), io=32.0MiB (33.6MB), run=886-3384msec rand-rw: (groupid=0, jobs=1): err= 0: pid=151490: Tue Sep 8 19:41:44 2026 read: IOPS=0, BW=3496KiB/s (3580kB/s)(12.0MiB/3515msec) clat (msec): min=258, max=2434, avg=1161.14, stdev=1134.01 lat (msec): min=258, max=2434, avg=1161.14, stdev=1134.01 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 259], 10.00th=[ 259], 20.00th=[ 259], | 30.00th=[ 259], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 2433], 80.00th=[ 2433], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=6.03%, ctx=70, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151491: Tue Sep 8 19:41:44 2026 read: IOPS=0, BW=1095KiB/s (1121kB/s)(4096KiB/3741msec) clat (nsec): min=2213.9M, max=2213.9M, avg=2213908584.00, stdev= 0.00 lat (nsec): min=2213.9M, max=2213.9M, avg=2213911690.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2198], 5.00th=[ 2198], 10.00th=[ 2198], 20.00th=[ 2198], | 30.00th=[ 2198], 40.00th=[ 2198], 50.00th=[ 2198], 60.00th=[ 2198], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2190KiB/s (2242kB/s)(8192KiB/3741msec); 0 zone resets clat (msec): min=340, max=1162, avg=751.32, stdev=581.06 lat (msec): min=340, max=1162, avg=751.56, stdev=581.16 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 1167], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 8159, max= 8159, per=93.15%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=8.50%, ctx=55, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=151492: Tue Sep 8 19:41:44 2026 write: IOPS=0, BW=3314KiB/s (3393kB/s)(12.0MiB/3708msec); 0 zone resets clat (msec): min=182, max=3282, avg=1222.44, stdev=1783.85 lat (msec): min=182, max=3282, avg=1222.79, stdev=1783.88 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 182], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 203], | 70.00th=[ 3272], 80.00th=[ 3272], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min=16318, max=16318, per=100.00%, avg=16318.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, >=2000=33.33% cpu : usr=0.03%, sys=5.96%, ctx=51, 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=151493: Tue Sep 8 19:41:44 2026 write: IOPS=1, BW=4111KiB/s (4210kB/s)(12.0MiB/2989msec); 0 zone resets clat (msec): min=206, max=2402, avg=989.60, stdev=1226.19 lat (msec): min=206, max=2402, avg=990.11, stdev=1226.01 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 2400], 80.00th=[ 2400], 90.00th=[ 2400], 95.00th=[ 2400], | 99.00th=[ 2400], 99.50th=[ 2400], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min=12468, max=12468, per=100.00%, avg=12468.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=8.70%, ctx=57, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4380KiB/s (4485kB/s), 1095KiB/s-3496KiB/s (1121kB/s-3580kB/s), io=16.0MiB (16.8MB), run=3515-3741msec WRITE: bw=8759KiB/s (8969kB/s), 2190KiB/s-4111KiB/s (2242kB/s-4210kB/s), io=32.0MiB (33.6MB), run=2989-3741msec