== sanity test 398b: DIO and buffer IO race ============== 02:55:39 (1786172139) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.45955 s, 7.8 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=178971: Sat Aug 8 02:57:59 2026 read: IOPS=12, BW=51.2KiB/s (52.4kB/s)(5992KiB/116992msec) clat (usec): min=37, max=1071.8k, avg=43577.87, stdev=38795.39 lat (usec): min=38, max=1071.8k, avg=43579.02, stdev=38795.56 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11863], 10.00th=[ 16319], | 20.00th=[ 21890], 30.00th=[ 26870], 40.00th=[ 31851], | 50.00th=[ 37487], 60.00th=[ 42730], 70.00th=[ 50594], | 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[ 141558], 99.50th=[ 170918], 99.90th=[ 242222], | 99.95th=[1069548], 99.99th=[1069548] bw ( KiB/s): min= 7, max= 111, per=25.19%, avg=51.14, stdev=19.04, samples=229 iops : min= 1, max= 27, avg=12.14, stdev= 4.79, samples=229 write: IOPS=13, BW=53.8KiB/s (55.1kB/s)(6296KiB/116992msec); 0 zone resets clat (usec): min=822, max=201060, avg=32550.39, stdev=32869.51 lat (usec): min=824, max=201061, avg=32557.60, stdev=32865.31 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1336], 10.00th=[ 1631], 20.00th=[ 4113], | 30.00th=[ 7898], 40.00th=[ 15533], 50.00th=[ 23725], 60.00th=[ 31589], | 70.00th=[ 41157], 80.00th=[ 55837], 90.00th=[ 78119], 95.00th=[ 98042], | 99.00th=[141558], 99.50th=[160433], 99.90th=[198181], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 7, max= 150, per=25.21%, avg=53.44, stdev=23.38, samples=230 iops : min= 1, max= 37, avg=12.73, stdev= 5.88, samples=230 lat (usec) : 50=0.20%, 100=1.69%, 250=0.03%, 1000=0.10% lat (msec) : 2=5.89%, 4=4.07%, 10=7.03%, 20=11.85%, 50=41.44% lat (msec) : 100=23.34%, 250=4.33%, 2000=0.03% cpu : usr=0.08%, sys=5.00%, ctx=6634, 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=178972: Sat Aug 8 02:57:59 2026 read: IOPS=12, BW=50.3KiB/s (51.5kB/s)(5940KiB/118029msec) clat (usec): min=36, max=216299, avg=43430.96, stdev=27590.59 lat (usec): min=36, max=216301, avg=43432.26, stdev=27590.83 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 11731], 10.00th=[ 15926], 20.00th=[ 21890], | 30.00th=[ 27395], 40.00th=[ 32375], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 51119], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[ 94897], | 99.00th=[141558], 99.50th=[152044], 99.90th=[181404], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 15, max= 111, per=24.86%, avg=50.47, stdev=19.01, samples=230 iops : min= 3, max= 27, avg=11.97, stdev= 4.75, samples=230 write: IOPS=13, BW=53.8KiB/s (55.1kB/s)(6348KiB/118029msec); 0 zone resets clat (usec): min=797, max=1027.5k, avg=33461.66, stdev=44403.34 lat (usec): min=797, max=1027.5k, avg=33466.09, stdev=44402.87 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1336], 10.00th=[ 1549], | 20.00th=[ 3392], 30.00th=[ 6980], 40.00th=[ 14353], | 50.00th=[ 21890], 60.00th=[ 30540], 70.00th=[ 41681], | 80.00th=[ 55313], 90.00th=[ 81265], 95.00th=[ 103285], | 99.00th=[ 156238], 99.50th=[ 191890], 99.90th=[ 501220], | 99.95th=[1027605], 99.99th=[1027605] bw ( KiB/s): min= 7, max= 158, per=25.22%, avg=53.47, stdev=25.18, samples=232 iops : min= 1, max= 39, avg=12.73, stdev= 6.36, samples=232 lat (usec) : 50=0.33%, 100=0.98%, 250=0.10%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.23% lat (msec) : 2=6.54%, 4=4.75%, 10=6.90%, 20=12.14%, 50=40.79% lat (msec) : 100=22.30%, 250=4.75%, 500=0.03%, 750=0.03%, 2000=0.03% cpu : usr=0.07%, sys=4.84%, ctx=6526, 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=178973: Sat Aug 8 02:57:59 2026 read: IOPS=13, BW=52.5KiB/s (53.8kB/s)(6028KiB/114825msec) clat (usec): min=35, max=234691, avg=41788.45, stdev=27501.00 lat (usec): min=35, max=234692, avg=41792.07, stdev=27499.43 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11469], 10.00th=[ 15664], 20.00th=[ 20841], | 30.00th=[ 25297], 40.00th=[ 30540], 50.00th=[ 35914], 60.00th=[ 41681], | 70.00th=[ 49546], 80.00th=[ 60031], 90.00th=[ 76022], 95.00th=[ 90702], | 99.00th=[141558], 99.50th=[154141], 99.90th=[200279], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 7, max= 111, per=25.61%, avg=51.98, stdev=21.85, samples=225 iops : min= 1, max= 27, avg=12.36, stdev= 5.51, samples=225 write: IOPS=13, BW=54.5KiB/s (55.8kB/s)(6260KiB/114825msec); 0 zone resets clat (usec): min=772, max=1123.5k, avg=32815.77, stdev=43226.49 lat (usec): min=773, max=1123.5k, avg=32825.85, stdev=43237.23 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1319], 10.00th=[ 1516], | 20.00th=[ 3621], 30.00th=[ 6915], 40.00th=[ 14484], | 50.00th=[ 22676], 60.00th=[ 30802], 70.00th=[ 42730], | 80.00th=[ 55837], 90.00th=[ 77071], 95.00th=[ 96994], | 99.00th=[ 145753], 99.50th=[ 166724], 99.90th=[ 270533], | 99.95th=[1115685], 99.99th=[1115685] bw ( KiB/s): min= 8, max= 119, per=25.46%, avg=53.98, stdev=23.19, samples=225 iops : min= 2, max= 29, avg=12.85, stdev= 5.81, samples=225 lat (usec) : 50=0.26%, 100=1.27%, 250=0.07%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=6.54%, 4=4.17%, 10=7.45%, 20=12.89%, 50=40.46% lat (msec) : 100=22.27%, 250=4.23%, 500=0.03%, 2000=0.03% cpu : usr=0.07%, sys=4.94%, ctx=6404, 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=178974: Sat Aug 8 02:57:59 2026 read: IOPS=12, BW=51.8KiB/s (53.1kB/s)(6052KiB/116791msec) clat (usec): min=37, max=1071.7k, avg=43292.30, stdev=38616.11 lat (usec): min=38, max=1071.7k, avg=43296.07, stdev=38616.62 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 11338], 10.00th=[ 16188], | 20.00th=[ 21103], 30.00th=[ 25822], 40.00th=[ 30802], | 50.00th=[ 36439], 60.00th=[ 42206], 70.00th=[ 51119], | 80.00th=[ 60556], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[ 147850], 99.50th=[ 166724], 99.90th=[ 193987], | 99.95th=[1069548], 99.99th=[1069548] bw ( KiB/s): min= 7, max= 111, per=25.28%, avg=51.33, stdev=19.62, samples=229 iops : min= 1, max= 27, avg=12.19, stdev= 4.95, samples=229 write: IOPS=13, BW=53.4KiB/s (54.7kB/s)(6236KiB/116791msec); 0 zone resets clat (usec): min=786, max=247852, avg=32590.78, stdev=32723.32 lat (usec): min=788, max=247853, avg=32595.42, stdev=32724.05 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1336], 10.00th=[ 1631], 20.00th=[ 3818], | 30.00th=[ 7635], 40.00th=[ 15270], 50.00th=[ 23200], 60.00th=[ 31589], | 70.00th=[ 41681], 80.00th=[ 57410], 90.00th=[ 79168], 95.00th=[100140], | 99.00th=[131597], 99.50th=[149947], 99.90th=[191890], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 7, max= 125, per=24.96%, avg=52.91, stdev=23.42, samples=229 iops : min= 1, max= 31, avg=12.59, stdev= 5.89, samples=229 lat (usec) : 50=0.26%, 100=1.37%, 500=0.10%, 1000=0.10% lat (msec) : 2=5.96%, 4=4.23%, 10=7.10%, 20=12.43%, 50=40.79% lat (msec) : 100=23.05%, 250=4.59%, 2000=0.03% cpu : usr=0.06%, sys=4.90%, ctx=6569, 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=203KiB/s (208kB/s), 50.3KiB/s-52.5KiB/s (51.5kB/s-53.8kB/s), io=23.4MiB (24.6MB), run=114825-118029msec WRITE: bw=213KiB/s (218kB/s), 53.4KiB/s-54.5KiB/s (54.7kB/s-55.8kB/s), io=24.6MiB (25.7MB), run=114825-118029msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178976: Sat Aug 8 02:58:42 2026 read: IOPS=9, BW=37.2KiB/s (38.1kB/s)(5992KiB/161080msec) clat (msec): min=5, max=1122, avg=42.47, stdev=45.88 lat (msec): min=5, max=1122, avg=42.47, stdev=45.88 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 59], 90.00th=[ 87], 95.00th=[ 124], | 99.00th=[ 186], 99.50th=[ 228], 99.90th=[ 259], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 135, per=25.46%, avg=37.93, stdev=24.20, samples=307 iops : min= 1, max= 33, avg= 8.84, stdev= 6.10, samples=307 write: IOPS=9, BW=39.1KiB/s (40.0kB/s)(6296KiB/161080msec); 0 zone resets clat (msec): min=9, max=348, avg=61.78, stdev=42.07 lat (msec): min=9, max=348, avg=61.79, stdev=42.07 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 50], 60.00th=[ 59], | 70.00th=[ 72], 80.00th=[ 89], 90.00th=[ 116], 95.00th=[ 144], | 99.00th=[ 205], 99.50th=[ 247], 99.90th=[ 334], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 135, per=24.92%, avg=38.87, stdev=23.17, samples=315 iops : min= 1, max= 33, avg= 9.06, stdev= 5.81, samples=315 lat (msec) : 10=2.25%, 20=14.45%, 50=45.44%, 100=26.82%, 250=10.74% lat (msec) : 500=0.26%, 2000=0.03% cpu : usr=0.05%, sys=2.02%, ctx=4911, 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=178977: Sat Aug 8 02:58:42 2026 read: IOPS=9, BW=37.4KiB/s (38.3kB/s)(5940KiB/158717msec) clat (msec): min=4, max=1161, avg=42.26, stdev=46.98 lat (msec): min=4, max=1161, avg=42.26, stdev=46.98 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 59], 90.00th=[ 85], 95.00th=[ 117], | 99.00th=[ 174], 99.50th=[ 199], 99.90th=[ 518], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 120, per=25.34%, avg=37.75, stdev=24.02, samples=306 iops : min= 1, max= 30, avg= 8.79, stdev= 6.05, samples=306 write: IOPS=9, BW=39.0KiB/s (40.0kB/s)(6348KiB/158717msec); 0 zone resets clat (msec): min=9, max=301, avg=60.40, stdev=38.56 lat (msec): min=9, max=301, avg=60.41, stdev=38.56 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 58], | 70.00th=[ 70], 80.00th=[ 88], 90.00th=[ 114], 95.00th=[ 142], | 99.00th=[ 188], 99.50th=[ 215], 99.90th=[ 249], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 135, per=25.66%, avg=40.03, stdev=23.08, samples=309 iops : min= 1, max= 33, avg= 9.35, stdev= 5.79, samples=309 lat (msec) : 10=1.89%, 20=15.01%, 50=45.31%, 100=26.86%, 250=10.74% lat (msec) : 500=0.13%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=2.06%, ctx=4826, 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=178978: Sat Aug 8 02:58:42 2026 read: IOPS=9, BW=37.4KiB/s (38.3kB/s)(6028KiB/160983msec) clat (msec): min=5, max=254, avg=42.90, stdev=36.31 lat (msec): min=5, max=254, avg=42.91, stdev=36.31 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 63], 90.00th=[ 92], 95.00th=[ 124], | 99.00th=[ 174], 99.50th=[ 192], 99.90th=[ 243], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 7, max= 151, per=25.09%, avg=37.39, stdev=23.08, samples=314 iops : min= 1, max= 37, avg= 8.69, stdev= 5.80, samples=314 write: IOPS=9, BW=38.9KiB/s (39.8kB/s)(6260KiB/160983msec); 0 zone resets clat (msec): min=10, max=1162, avg=61.47, stdev=49.64 lat (msec): min=10, max=1162, avg=61.47, stdev=49.64 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 59], | 70.00th=[ 70], 80.00th=[ 86], 90.00th=[ 114], 95.00th=[ 146], | 99.00th=[ 194], 99.50th=[ 241], 99.90th=[ 435], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 151, per=25.11%, avg=39.16, stdev=23.45, samples=311 iops : min= 1, max= 37, avg= 9.14, stdev= 5.91, samples=311 lat (msec) : 10=1.63%, 20=14.42%, 50=45.18%, 100=27.47%, 250=11.04% lat (msec) : 500=0.23%, 2000=0.03% cpu : usr=0.05%, sys=1.98%, ctx=4971, 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=178979: Sat Aug 8 02:58:42 2026 read: IOPS=9, BW=37.8KiB/s (38.7kB/s)(6052KiB/160004msec) clat (msec): min=4, max=515, avg=43.02, stdev=38.63 lat (msec): min=4, max=515, avg=43.02, stdev=38.63 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 62], 90.00th=[ 93], 95.00th=[ 125], | 99.00th=[ 171], 99.50th=[ 209], 99.90th=[ 271], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 7, max= 135, per=25.94%, avg=38.65, stdev=24.10, samples=305 iops : min= 1, max= 33, avg= 9.01, stdev= 6.08, samples=305 write: IOPS=9, BW=38.0KiB/s (39.9kB/s)(6236KiB/160004msec); 0 zone resets clat (msec): min=10, max=1056, avg=60.79, stdev=48.34 lat (msec): min=10, max=1056, avg=60.79, stdev=48.34 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 57], | 70.00th=[ 68], 80.00th=[ 85], 90.00th=[ 113], 95.00th=[ 144], | 99.00th=[ 220], 99.50th=[ 264], 99.90th=[ 359], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 127, per=24.93%, avg=38.90, stdev=22.78, samples=312 iops : min= 1, max= 31, avg= 9.07, stdev= 5.72, samples=312 lat (msec) : 10=2.02%, 20=15.10%, 50=45.51%, 100=26.43%, 250=10.55% lat (msec) : 500=0.33%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.99%, ctx=4737, 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=149KiB/s (153kB/s), 37.2KiB/s-37.8KiB/s (38.1kB/s-38.7kB/s), io=23.4MiB (24.6MB), run=158717-161080msec WRITE: bw=156KiB/s (160kB/s), 38.9KiB/s-39.0KiB/s (39.8kB/s-40.0kB/s), io=24.6MiB (25.7MB), run=158717-161080msec 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=179025: Sat Aug 8 02:59:24 2026 read: IOPS=11, BW=189KiB/s (194kB/s)(5920KiB/31318msec) clat (usec): min=39, max=234857, avg=46242.46, stdev=32925.23 lat (usec): min=40, max=234858, avg=46243.62, stdev=32925.21 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 70], 10.00th=[ 12518], 20.00th=[ 22152], | 30.00th=[ 27919], 40.00th=[ 33162], 50.00th=[ 39584], 60.00th=[ 46400], | 70.00th=[ 54789], 80.00th=[ 67634], 90.00th=[ 87557], 95.00th=[104334], | 99.00th=[166724], 99.50th=[181404], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 61, max= 480, per=24.64%, avg=188.25, stdev=85.06, samples=61 iops : min= 3, max= 30, avg=11.02, stdev= 5.33, samples=61 write: IOPS=12, BW=203KiB/s (208kB/s)(6368KiB/31318msec); 0 zone resets clat (usec): min=1452, max=241217, avg=34452.15, stdev=35761.32 lat (usec): min=1454, max=241220, avg=34454.33, stdev=35761.28 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2008], 10.00th=[ 2900], 20.00th=[ 5145], | 30.00th=[ 8094], 40.00th=[ 16909], 50.00th=[ 24773], 60.00th=[ 32637], | 70.00th=[ 42206], 80.00th=[ 56886], 90.00th=[ 82314], 95.00th=[108528], | 99.00th=[156238], 99.50th=[206570], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 21, max= 640, per=25.38%, avg=204.02, stdev=104.38, samples=61 iops : min= 1, max= 40, avg=12.02, stdev= 6.58, samples=61 lat (usec) : 50=0.65%, 100=2.60%, 250=0.13% lat (msec) : 2=2.34%, 4=5.73%, 10=9.90%, 20=9.38%, 50=39.45% lat (msec) : 100=23.31%, 250=6.51% cpu : usr=0.08%, sys=5.20%, ctx=1740, 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=179026: Sat Aug 8 02:59:24 2026 read: IOPS=11, BW=186KiB/s (191kB/s)(5744KiB/30816msec) clat (usec): min=43, max=205272, avg=47209.21, stdev=30966.20 lat (usec): min=43, max=205273, avg=47210.44, stdev=30966.28 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 70], 10.00th=[ 16319], 20.00th=[ 23987], | 30.00th=[ 30016], 40.00th=[ 34866], 50.00th=[ 40633], 60.00th=[ 49021], | 70.00th=[ 56886], 80.00th=[ 68682], 90.00th=[ 86508], 95.00th=[105382], | 99.00th=[154141], 99.50th=[185598], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 31, max= 349, per=24.15%, avg=184.53, stdev=77.20, samples=60 iops : min= 1, max= 21, avg=10.77, stdev= 4.85, samples=60 write: IOPS=13, BW=212KiB/s (217kB/s)(6544KiB/30816msec); 0 zone resets clat (usec): min=1456, max=293264, avg=33596.94, stdev=34331.09 lat (usec): min=1458, max=293267, avg=33601.81, stdev=34330.68 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 1958], 10.00th=[ 2606], 20.00th=[ 5538], | 30.00th=[ 10945], 40.00th=[ 18220], 50.00th=[ 25297], 60.00th=[ 32637], | 70.00th=[ 42730], 80.00th=[ 56886], 90.00th=[ 71828], 95.00th=[ 99091], | 99.00th=[152044], 99.50th=[166724], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 507, per=26.10%, avg=209.88, stdev=89.75, samples=60 iops : min= 1, max= 31, avg=12.37, stdev= 5.60, samples=60 lat (usec) : 50=0.13%, 100=2.73% lat (msec) : 2=3.39%, 4=4.30%, 10=7.94%, 20=10.29%, 50=40.62% lat (msec) : 100=25.26%, 250=5.21%, 500=0.13% cpu : usr=0.06%, sys=5.16%, ctx=1651, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179027: Sat Aug 8 02:59:24 2026 read: IOPS=12, BW=203KiB/s (208kB/s)(6256KiB/30793msec) clat (usec): min=40, max=247593, avg=43533.16, stdev=29974.00 lat (usec): min=40, max=247595, avg=43545.08, stdev=29972.26 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 65], 10.00th=[ 8160], 20.00th=[ 22676], | 30.00th=[ 28443], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 53740], 80.00th=[ 62129], 90.00th=[ 79168], 95.00th=[ 92799], | 99.00th=[152044], 99.50th=[168821], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 31, max= 539, per=26.44%, avg=202.00, stdev=95.13, samples=60 iops : min= 1, max= 33, avg=11.87, stdev= 6.00, samples=60 write: IOPS=12, BW=196KiB/s (201kB/s)(6032KiB/30793msec); 0 zone resets clat (usec): min=1297, max=198237, avg=35306.98, stdev=34128.22 lat (usec): min=1299, max=198239, avg=35309.08, stdev=34128.22 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2245], 10.00th=[ 3425], 20.00th=[ 6718], | 30.00th=[ 10552], 40.00th=[ 17695], 50.00th=[ 25560], 60.00th=[ 33817], | 70.00th=[ 43779], 80.00th=[ 60031], 90.00th=[ 86508], 95.00th=[104334], | 99.00th=[143655], 99.50th=[168821], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 32, max= 448, per=23.83%, avg=191.60, stdev=88.28, samples=60 iops : min= 2, max= 28, avg=11.22, stdev= 5.58, samples=60 lat (usec) : 50=0.39%, 100=4.30%, 250=0.26%, 500=0.13% lat (msec) : 2=1.82%, 4=4.17%, 10=8.85%, 20=9.77%, 50=41.15% lat (msec) : 100=24.61%, 250=4.56% cpu : usr=0.05%, sys=5.23%, ctx=1710, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179028: Sat Aug 8 02:59:24 2026 read: IOPS=12, BW=202KiB/s (207kB/s)(6032KiB/29897msec) clat (usec): min=41, max=208300, avg=42457.76, stdev=29882.15 lat (usec): min=42, max=208301, avg=42476.41, stdev=29890.85 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 62], 10.00th=[ 206], 20.00th=[ 19792], | 30.00th=[ 26084], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 46400], | 70.00th=[ 53740], 80.00th=[ 63701], 90.00th=[ 81265], 95.00th=[ 95945], | 99.00th=[130548], 99.50th=[175113], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 31, max= 442, per=26.57%, avg=202.96, stdev=95.69, samples=57 iops : min= 1, max= 27, avg=11.93, stdev= 6.03, samples=57 write: IOPS=13, BW=209KiB/s (214kB/s)(6256KiB/29897msec); 0 zone resets clat (usec): min=1467, max=249135, avg=34356.89, stdev=38915.61 lat (usec): min=1469, max=249138, avg=34359.47, stdev=38915.25 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 1942], 10.00th=[ 2442], 20.00th=[ 4228], | 30.00th=[ 7373], 40.00th=[ 12780], 50.00th=[ 22152], 60.00th=[ 29754], | 70.00th=[ 37487], 80.00th=[ 61604], 90.00th=[ 82314], 95.00th=[115868], | 99.00th=[166724], 99.50th=[206570], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 31, max= 446, per=25.86%, avg=207.90, stdev=87.65, samples=58 iops : min= 1, max= 27, avg=12.24, stdev= 5.50, samples=58 lat (usec) : 50=0.65%, 100=4.17%, 250=0.26%, 500=0.13% lat (msec) : 2=3.52%, 4=6.51%, 10=9.24%, 20=9.64%, 50=36.07% lat (msec) : 100=24.22%, 250=5.60% cpu : usr=0.07%, sys=5.27%, ctx=1572, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=765KiB/s (783kB/s), 186KiB/s-203KiB/s (191kB/s-208kB/s), io=23.4MiB (24.5MB), run=29897-31318msec WRITE: bw=805KiB/s (824kB/s), 196KiB/s-212KiB/s (201kB/s-217kB/s), io=24.6MiB (25.8MB), run=29897-31318msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179021: Sat Aug 8 02:59:36 2026 read: IOPS=8, BW=135KiB/s (138kB/s)(5920KiB/43872msec) clat (msec): min=6, max=251, avg=44.65, stdev=39.56 lat (msec): min=6, max=251, avg=44.65, stdev=39.56 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 63], 90.00th=[ 99], 95.00th=[ 131], | 99.00th=[ 201], 99.50th=[ 230], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 476, per=24.52%, avg=133.65, stdev=85.51, samples=86 iops : min= 1, max= 29, avg= 7.52, stdev= 5.41, samples=86 write: IOPS=9, BW=145KiB/s (149kB/s)(6368KiB/43872msec); 0 zone resets clat (msec): min=17, max=320, avg=68.56, stdev=47.18 lat (msec): min=17, max=320, avg=68.57, stdev=47.18 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 52], 60.00th=[ 63], | 70.00th=[ 80], 80.00th=[ 100], 90.00th=[ 132], 95.00th=[ 169], | 99.00th=[ 234], 99.50th=[ 284], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 382, per=25.20%, avg=144.67, stdev=85.79, samples=86 iops : min= 1, max= 23, avg= 8.21, stdev= 5.39, samples=86 lat (msec) : 10=1.17%, 20=10.94%, 50=47.92%, 100=25.13%, 250=14.45% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=1.92%, ctx=1235, 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=179022: Sat Aug 8 02:59:36 2026 read: IOPS=8, BW=131KiB/s (134kB/s)(5744KiB/43843msec) clat (msec): min=6, max=260, avg=44.11, stdev=37.45 lat (msec): min=6, max=260, avg=44.11, stdev=37.45 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 50], 80.00th=[ 66], 90.00th=[ 95], 95.00th=[ 122], | 99.00th=[ 171], 99.50th=[ 222], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 22, max= 507, per=24.81%, avg=135.19, stdev=84.05, samples=83 iops : min= 1, max= 31, avg= 7.61, stdev= 5.30, samples=83 write: IOPS=9, BW=149KiB/s (153kB/s)(6544KiB/43843msec); 0 zone resets clat (msec): min=16, max=255, avg=67.28, stdev=42.48 lat (msec): min=16, max=255, avg=67.28, stdev=42.48 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 36], | 30.00th=[ 42], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 64], | 70.00th=[ 75], 80.00th=[ 96], 90.00th=[ 123], 95.00th=[ 157], | 99.00th=[ 207], 99.50th=[ 234], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 31, max= 347, per=25.88%, avg=148.56, stdev=76.82, samples=86 iops : min= 1, max= 21, avg= 8.47, stdev= 4.82, samples=86 lat (msec) : 10=1.43%, 20=10.68%, 50=45.18%, 100=28.39%, 250=14.06% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=1.81%, ctx=1241, 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=179023: Sat Aug 8 02:59:36 2026 read: IOPS=9, BW=150KiB/s (154kB/s)(6256KiB/41683msec) clat (msec): min=5, max=253, avg=43.62, stdev=37.66 lat (msec): min=5, max=253, avg=43.62, stdev=37.66 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 60], 90.00th=[ 94], 95.00th=[ 133], | 99.00th=[ 174], 99.50th=[ 213], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 31, max= 479, per=27.98%, avg=152.48, stdev=98.12, samples=81 iops : min= 1, max= 29, avg= 8.70, stdev= 6.18, samples=81 write: IOPS=9, BW=145KiB/s (148kB/s)(6032KiB/41683msec); 0 zone resets clat (msec): min=15, max=326, avg=64.57, stdev=41.79 lat (msec): min=15, max=326, avg=64.58, stdev=41.79 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 45], 50.00th=[ 54], 60.00th=[ 65], | 70.00th=[ 78], 80.00th=[ 92], 90.00th=[ 115], 95.00th=[ 153], | 99.00th=[ 218], 99.50th=[ 245], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 476, per=25.11%, avg=144.12, stdev=84.98, samples=82 iops : min= 1, max= 29, avg= 8.18, stdev= 5.35, samples=82 lat (msec) : 10=1.43%, 20=13.93%, 50=45.18%, 100=26.95%, 250=12.24% lat (msec) : 500=0.26% cpu : usr=0.04%, sys=2.06%, ctx=1213, 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=179024: Sat Aug 8 02:59:36 2026 read: IOPS=8, BW=139KiB/s (142kB/s)(6032KiB/43430msec) clat (msec): min=7, max=243, avg=45.70, stdev=38.12 lat (msec): min=7, max=243, avg=45.71, stdev=38.12 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 67], 90.00th=[ 93], 95.00th=[ 138], | 99.00th=[ 199], 99.50th=[ 222], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 31, max= 445, per=25.61%, avg=139.60, stdev=85.56, samples=84 iops : min= 1, max= 27, avg= 7.89, stdev= 5.40, samples=84 write: IOPS=9, BW=144KiB/s (148kB/s)(6256KiB/43430msec); 0 zone resets clat (msec): min=16, max=366, avg=65.86, stdev=46.42 lat (msec): min=16, max=366, avg=65.88, stdev=46.41 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 52], 60.00th=[ 62], | 70.00th=[ 77], 80.00th=[ 95], 90.00th=[ 124], 95.00th=[ 155], | 99.00th=[ 241], 99.50th=[ 321], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 31, max= 539, per=25.73%, avg=147.69, stdev=87.10, samples=83 iops : min= 1, max= 33, avg= 8.40, stdev= 5.49, samples=83 lat (msec) : 10=0.52%, 20=11.98%, 50=46.61%, 100=27.08%, 250=13.41% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=1.88%, ctx=1243, 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=546KiB/s (559kB/s), 131KiB/s-150KiB/s (134kB/s-154kB/s), io=23.4MiB (24.5MB), run=41683-43872msec WRITE: bw=574KiB/s (588kB/s), 144KiB/s-149KiB/s (148kB/s-153kB/s), io=24.6MiB (25.8MB), run=41683-43872msec 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=179041: Sat Aug 8 02:59:50 2026 read: IOPS=2, BW=2551KiB/s (2612kB/s)(7168KiB/2810msec) clat (usec): min=544, max=246606, avg=178106.18, stdev=87714.09 lat (usec): min=546, max=246607, avg=178107.52, stdev=87714.02 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[141558], | 30.00th=[166724], 40.00th=[166724], 50.00th=[227541], 60.00th=[231736], | 70.00th=[231736], 80.00th=[233833], 90.00th=[246416], 95.00th=[246416], | 99.00th=[246416], 99.50th=[246416], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 1961, max= 4296, per=66.01%, avg=2764.00, stdev=1327.27, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1822KiB/s (1866kB/s)(5120KiB/2810msec); 0 zone resets clat (msec): min=193, max=391, avg=302.89, stdev=87.70 lat (msec): min=193, max=391, avg=302.98, stdev=87.70 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 194], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 363], 80.00th=[ 363], 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= 2035, max= 3856, per=50.25%, avg=2945.50, stdev=1287.64, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (usec) : 750=8.33% lat (msec) : 250=66.67%, 500=25.00% cpu : usr=0.00%, sys=17.16%, ctx=128, 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=179042: Sat Aug 8 02:59:50 2026 read: IOPS=0, BW=419KiB/s (429kB/s)(2048KiB/4891msec) clat (msec): min=3, max=116, avg=60.15, stdev=80.32 lat (msec): min=3, max=116, avg=60.15, stdev=80.32 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 4], | 30.00th=[ 4], 40.00th=[ 4], 50.00th=[ 4], 60.00th=[ 117], | 70.00th=[ 117], 80.00th=[ 117], 90.00th=[ 117], 95.00th=[ 117], | 99.00th=[ 117], 99.50th=[ 117], 99.90th=[ 117], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 1438, max= 2039, per=41.52%, avg=1738.50, stdev=424.97, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2094KiB/s (2144kB/s)(10.0MiB/4891msec); 0 zone resets clat (msec): min=180, max=1070, avg=467.54, stdev=297.94 lat (msec): min=180, max=1070, avg=467.60, stdev=297.93 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 194], | 30.00th=[ 228], 40.00th=[ 249], 50.00th=[ 309], 60.00th=[ 447], | 70.00th=[ 584], 80.00th=[ 609], 90.00th=[ 802], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 1961, max= 4079, per=51.11%, avg=2995.83, stdev=1105.39, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 4=8.33%, 250=41.67%, 500=16.67%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=11.31%, ctx=181, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179043: Sat Aug 8 02:59:50 2026 read: IOPS=1, BW=1589KiB/s (1627kB/s)(6144KiB/3866msec) clat (usec): min=476, max=224846, avg=74472.63, stdev=98001.41 lat (usec): min=478, max=224847, avg=74473.63, stdev=98001.27 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 742], 50.00th=[ 742], 60.00th=[ 53216], | 70.00th=[166724], 80.00th=[166724], 90.00th=[225444], 95.00th=[225444], | 99.00th=[225444], 99.50th=[225444], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 1928, max= 3663, per=57.27%, avg=2397.75, stdev=844.78, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1589KiB/s (1627kB/s)(6144KiB/3866msec); 0 zone resets clat (msec): min=250, max=939, avg=554.37, stdev=286.45 lat (msec): min=250, max=940, avg=554.64, stdev=286.34 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 676], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1442, max= 2039, per=32.22%, avg=1888.50, stdev=232.43, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 100=8.33%, 250=16.67%, 500=25.00%, 750=8.33%, 1000=16.67% cpu : usr=0.05%, sys=10.22%, ctx=146, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179044: Sat Aug 8 02:59:50 2026 read: IOPS=1, BW=1330KiB/s (1361kB/s)(5120KiB/3851msec) clat (usec): min=317, max=243021, avg=84062.27, stdev=117030.07 lat (usec): min=317, max=243022, avg=84063.01, stdev=117030.39 clat percentiles (usec): | 1.00th=[ 318], 5.00th=[ 318], 10.00th=[ 318], 20.00th=[ 318], | 30.00th=[ 326], 40.00th=[ 326], 50.00th=[ 420], 60.00th=[ 420], | 70.00th=[177210], 80.00th=[177210], 90.00th=[242222], 95.00th=[242222], | 99.00th=[242222], 99.50th=[242222], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 7327, max= 7327, per=100.00%, avg=7327.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1861KiB/s (1906kB/s)(7168KiB/3851msec); 0 zone resets clat (msec): min=151, max=1068, avg=475.45, stdev=284.22 lat (msec): min=151, max=1068, avg=475.86, stdev=284.29 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 372], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 401], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 514], 90.00th=[ 1070], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 1428, max= 4079, per=37.98%, avg=2226.17, stdev=935.35, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (usec) : 500=25.00% lat (msec) : 250=25.00%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.10%, sys=10.39%, ctx=141, 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=4187KiB/s (4288kB/s), 419KiB/s-2551KiB/s (429kB/s-2612kB/s), io=20.0MiB (20.0MB), run=2810-4891msec WRITE: bw=5862KiB/s (6003kB/s), 1589KiB/s-2094KiB/s (1627kB/s-2144kB/s), io=28.0MiB (29.4MB), run=2810-4891msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179046: Sat Aug 8 02:59:50 2026 read: IOPS=1, BW=1466KiB/s (1502kB/s)(7168KiB/4888msec) clat (msec): min=113, max=915, avg=348.94, stdev=305.39 lat (msec): min=113, max=915, avg=348.95, stdev=305.39 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 140], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 178], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 609], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 1976, max= 4063, per=59.25%, avg=2412.20, stdev=922.98, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1047KiB/s (1073kB/s)(5120KiB/4888msec); 0 zone resets clat (msec): min=183, max=905, avg=483.20, stdev=272.74 lat (msec): min=183, max=905, avg=483.29, stdev=272.76 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 338], 40.00th=[ 338], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1976, max= 4047, per=47.12%, avg=2686.00, stdev=1179.03, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=41.67%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=4.07%, ctx=80, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179047: Sat Aug 8 02:59:50 2026 read: IOPS=0, BW=427KiB/s (437kB/s)(2048KiB/4798msec) clat (msec): min=112, max=810, avg=461.60, stdev=493.29 lat (msec): min=112, max=810, avg=461.60, stdev=493.29 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 113], 60.00th=[ 810], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1996, max= 2027, per=49.41%, avg=2011.50, stdev=21.92, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2134KiB/s (2185kB/s)(10.0MiB/4798msec); 0 zone resets clat (msec): min=105, max=1062, avg=387.20, stdev=281.94 lat (msec): min=105, max=1062, avg=387.28, stdev=281.93 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 136], | 30.00th=[ 228], 40.00th=[ 236], 50.00th=[ 279], 60.00th=[ 372], | 70.00th=[ 376], 80.00th=[ 481], 90.00th=[ 600], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 2019, max= 4039, per=52.99%, avg=3020.67, stdev=1083.94, samples=6 iops : min= 1, max= 3, avg= 2.17, stdev= 0.98, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=4.17%, ctx=87, 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=179048: Sat Aug 8 02:59:50 2026 read: IOPS=1, BW=1287KiB/s (1318kB/s)(6144KiB/4775msec) clat (msec): min=134, max=442, avg=255.15, stdev=110.00 lat (msec): min=134, max=442, avg=255.15, stdev=110.00 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 194], | 30.00th=[ 194], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 241], | 70.00th=[ 317], 80.00th=[ 317], 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= 1976, max= 2031, per=49.44%, avg=2012.80, stdev=21.41, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1287KiB/s (1318kB/s)(6144KiB/4775msec); 0 zone resets clat (msec): min=115, max=937, avg=520.12, stdev=279.74 lat (msec): min=115, max=937, avg=520.20, stdev=279.73 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 558], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 1976, max= 2035, per=35.34%, avg=2014.50, stdev=20.08, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=3.16%, ctx=60, 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=179049: Sat Aug 8 02:59:50 2026 read: IOPS=0, BW=1018KiB/s (1042kB/s)(5120KiB/5030msec) clat (msec): min=86, max=484, avg=178.06, stdev=172.05 lat (msec): min=86, max=484, avg=178.06, stdev=172.05 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 87], | 30.00th=[ 92], 40.00th=[ 92], 50.00th=[ 103], 60.00th=[ 103], | 70.00th=[ 126], 80.00th=[ 126], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 2015, max= 6071, per=99.31%, avg=4043.00, stdev=2868.03, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1425KiB/s (1459kB/s)(7168KiB/5030msec); 0 zone resets clat (msec): min=122, max=1030, avg=575.51, stdev=316.26 lat (msec): min=122, max=1030, avg=575.59, stdev=316.25 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 326], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 902], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1976, max= 2035, per=35.37%, avg=2016.00, stdev=23.47, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=25.00%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=4.24%, ctx=94, 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=4072KiB/s (4169kB/s), 427KiB/s-1466KiB/s (437kB/s-1502kB/s), io=20.0MiB (20.0MB), run=4775-5030msec WRITE: bw=5700KiB/s (5837kB/s), 1047KiB/s-2134KiB/s (1073kB/s-2185kB/s), io=28.0MiB (29.4MB), run=4775-5030msec 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=179057: Sat Aug 8 03:00:03 2026 read: IOPS=0, BW=4086KiB/s (4185kB/s)(12.0MiB/3007msec) clat (msec): min=669, max=1120, avg=967.94, stdev=258.31 lat (msec): min=669, max=1120, avg=967.95, stdev=258.31 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1116], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7953, max= 8143, per=100.00%, avg=8048.00, stdev=134.35, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.76%, ctx=38, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179058: Sat Aug 8 03:00:03 2026 read: IOPS=0, BW=1394KiB/s (1428kB/s)(4096KiB/2938msec) clat (nsec): min=510800k, max=510800k, avg=510800018.00, stdev= 0.00 lat (nsec): min=510804k, max=510804k, avg=510803968.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 6360, max= 6360, per=100.00%, avg=6360.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2788KiB/s (2855kB/s)(8192KiB/2938msec); 0 zone resets clat (msec): min=260, max=2107, avg=1183.86, stdev=1306.07 lat (msec): min=260, max=2107, avg=1184.23, stdev=1306.08 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 2106], | 70.00th=[ 2106], 80.00th=[ 2106], 90.00th=[ 2106], 95.00th=[ 2106], | 99.00th=[ 2106], 99.50th=[ 2106], 99.90th=[ 2106], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 7953, max= 7953, per=71.31%, avg=7953.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.10%, ctx=57, 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=179059: Sat Aug 8 03:00:03 2026 write: IOPS=1, BW=6962KiB/s (7129kB/s)(12.0MiB/1765msec); 0 zone resets clat (msec): min=275, max=1059, avg=568.91, stdev=427.32 lat (msec): min=275, max=1059, avg=569.34, stdev=427.29 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7249, max= 8126, per=68.93%, avg=7687.50, stdev=620.13, 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=4.20%, ctx=38, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179060: Sat Aug 8 03:00:03 2026 write: IOPS=1, BW=5585KiB/s (5720kB/s)(12.0MiB/2200msec); 0 zone resets clat (msec): min=212, max=1426, avg=704.40, stdev=638.56 lat (msec): min=212, max=1426, avg=704.83, stdev=638.58 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 6522, max= 8143, per=65.74%, avg=7332.50, stdev=1146.22, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.14%, ctx=38, 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=5449KiB/s (5579kB/s), 1394KiB/s-4086KiB/s (1428kB/s-4185kB/s), io=16.0MiB (16.8MB), run=2938-3007msec WRITE: bw=10.9MiB/s (11.4MB/s), 2788KiB/s-6962KiB/s (2855kB/s-7129kB/s), io=32.0MiB (33.6MB), run=1765-2938msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179061: Sat Aug 8 03:00:04 2026 read: IOPS=1, BW=4385KiB/s (4491kB/s)(12.0MiB/2802msec) clat (msec): min=650, max=990, avg=808.43, stdev=171.37 lat (msec): min=650, max=990, avg=808.43, stdev=171.37 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 8110, max= 8143, per=100.00%, avg=8126.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=8.93%, ctx=319, 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=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=179062: Sat Aug 8 03:00:04 2026 read: IOPS=0, BW=1109KiB/s (1135kB/s)(4096KiB/3694msec) clat (nsec): min=783756k, max=783756k, avg=783756001.00, stdev= 0.00 lat (nsec): min=783759k, max=783759k, avg=783758688.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2218KiB/s (2271kB/s)(8192KiB/3694msec); 0 zone resets clat (msec): min=250, max=2361, avg=1305.93, stdev=1492.49 lat (msec): min=251, max=2361, avg=1306.31, stdev=1492.25 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 251], | 30.00th=[ 251], 40.00th=[ 251], 50.00th=[ 251], 60.00th=[ 2366], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 8015, max= 8015, per=90.36%, avg=8015.00, 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=4.03%, ctx=72, 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=179063: Sat Aug 8 03:00:04 2026 write: IOPS=0, BW=3769KiB/s (3860kB/s)(12.0MiB/3260msec); 0 zone resets clat (msec): min=674, max=1690, avg=1044.10, stdev=561.64 lat (msec): min=675, max=1690, avg=1044.63, stdev=561.54 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8031, max= 8110, per=90.99%, avg=8070.50, stdev=55.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=2.98%, ctx=50, 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=179064: Sat Aug 8 03:00:04 2026 write: IOPS=1, BW=4757KiB/s (4871kB/s)(12.0MiB/2583msec); 0 zone resets clat (msec): min=565, max=1049, avg=743.93, stdev=265.73 lat (msec): min=568, max=1049, avg=745.30, stdev=264.86 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 8143, max= 8192, per=92.08%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.37%, ctx=41, 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=4435KiB/s (4542kB/s), 1109KiB/s-4385KiB/s (1135kB/s-4491kB/s), io=16.0MiB (16.8MB), run=2802-3694msec WRITE: bw=8871KiB/s (9083kB/s), 2218KiB/s-4757KiB/s (2271kB/s-4871kB/s), io=32.0MiB (33.6MB), run=2583-3694msec