== sanity test 398b: DIO and buffer IO race ============== 01:03:56 (1781240636) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.50852 s, 11.2 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=179497: Fri Jun 12 01:06:12 2026 read: IOPS=12, BW=50.8KiB/s (51.0kB/s)(5992KiB/118017msec) clat (usec): min=33, max=343196, avg=43598.57, stdev=29316.23 lat (usec): min=34, max=343198, avg=43599.95, stdev=29316.86 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11994], 10.00th=[ 16581], 20.00th=[ 21890], | 30.00th=[ 27132], 40.00th=[ 32637], 50.00th=[ 38011], 60.00th=[ 44827], | 70.00th=[ 51119], 80.00th=[ 60556], 90.00th=[ 76022], 95.00th=[ 93848], | 99.00th=[143655], 99.50th=[183501], 99.90th=[278922], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 110, per=25.01%, avg=50.28, stdev=20.05, samples=231 iops : min= 1, max= 27, avg=11.91, stdev= 5.04, samples=231 write: IOPS=13, BW=53.3KiB/s (54.6kB/s)(6296KiB/118017msec); 0 zone resets clat (usec): min=828, max=821909, avg=33226.82, stdev=40957.86 lat (usec): min=829, max=821911, avg=33243.77, stdev=40959.66 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1369], 10.00th=[ 1713], 20.00th=[ 3752], | 30.00th=[ 6587], 40.00th=[ 13435], 50.00th=[ 22676], 60.00th=[ 30278], | 70.00th=[ 41681], 80.00th=[ 55837], 90.00th=[ 79168], 95.00th=[102237], | 99.00th=[175113], 99.50th=[202376], 99.90th=[252707], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 166, per=25.22%, avg=53.21, stdev=23.83, samples=230 iops : min= 1, max= 41, avg=12.65, stdev= 6.01, samples=230 lat (usec) : 50=0.36%, 100=0.94%, 250=0.07%, 750=0.03%, 1000=0.16% lat (msec) : 2=6.12%, 4=4.52%, 10=7.55%, 20=12.70%, 50=39.71% lat (msec) : 100=23.27%, 250=4.43%, 500=0.10%, 1000=0.03% cpu : usr=0.07%, sys=4.90%, ctx=6467, 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=179498: Fri Jun 12 01:06:12 2026 read: IOPS=12, BW=51.5KiB/s (52.8kB/s)(5940KiB/115286msec) clat (usec): min=38, max=306075, avg=43603.27, stdev=28221.81 lat (usec): min=38, max=306076, avg=43604.80, stdev=28221.67 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 11731], 10.00th=[ 16712], 20.00th=[ 22676], | 30.00th=[ 27657], 40.00th=[ 32113], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 61604], 90.00th=[ 78119], 95.00th=[ 93848], | 99.00th=[133694], 99.50th=[156238], 99.90th=[244319], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 119, per=25.56%, avg=51.38, stdev=20.62, samples=225 iops : min= 1, max= 29, avg=12.19, stdev= 5.19, samples=225 write: IOPS=13, BW=55.1KiB/s (56.4kB/s)(6348KiB/115286msec); 0 zone resets clat (usec): min=663, max=1055.4k, avg=31592.55, stdev=42880.78 lat (usec): min=664, max=1055.4k, avg=31597.11, stdev=42879.68 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1336], 10.00th=[ 1516], | 20.00th=[ 3097], 30.00th=[ 5735], 40.00th=[ 11469], | 50.00th=[ 20841], 60.00th=[ 28443], 70.00th=[ 38536], | 80.00th=[ 54264], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[ 160433], 99.50th=[ 183501], 99.90th=[ 274727], | 99.95th=[1052771], 99.99th=[1052771] bw ( KiB/s): min= 7, max= 127, per=25.86%, avg=54.56, stdev=24.62, samples=226 iops : min= 1, max= 31, avg=12.99, stdev= 6.20, samples=226 lat (usec) : 50=0.23%, 100=1.33%, 250=0.10%, 750=0.03%, 1000=0.13% lat (msec) : 2=7.19%, 4=5.01%, 10=8.04%, 20=10.81%, 50=39.94% lat (msec) : 100=22.95%, 250=4.13%, 500=0.07%, 2000=0.03% cpu : usr=0.08%, sys=4.99%, ctx=6142, 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=179499: Fri Jun 12 01:06:12 2026 read: IOPS=12, BW=50.9KiB/s (52.1kB/s)(6028KiB/118536msec) clat (usec): min=37, max=855548, avg=45078.98, stdev=37557.20 lat (usec): min=37, max=855549, avg=45081.65, stdev=37557.55 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11207], 10.00th=[ 15795], 20.00th=[ 21627], | 30.00th=[ 26346], 40.00th=[ 31589], 50.00th=[ 38011], 60.00th=[ 43779], | 70.00th=[ 52167], 80.00th=[ 63701], 90.00th=[ 81265], 95.00th=[103285], | 99.00th=[154141], 99.50th=[191890], 99.90th=[287310], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 111, per=25.05%, avg=50.34, stdev=20.35, samples=232 iops : min= 1, max= 27, avg=11.93, stdev= 5.10, samples=232 write: IOPS=13, BW=52.8KiB/s (54.1kB/s)(6260KiB/118536msec); 0 zone resets clat (usec): min=862, max=230655, avg=32051.55, stdev=32872.51 lat (usec): min=863, max=230656, avg=32053.11, stdev=32872.46 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1336], 10.00th=[ 1565], 20.00th=[ 3621], | 30.00th=[ 7046], 40.00th=[ 15270], 50.00th=[ 22938], 60.00th=[ 31327], | 70.00th=[ 42206], 80.00th=[ 54264], 90.00th=[ 74974], 95.00th=[ 99091], | 99.00th=[137364], 99.50th=[170918], 99.90th=[219153], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 7, max= 135, per=24.88%, avg=52.51, stdev=24.91, samples=231 iops : min= 1, max= 33, avg=12.48, stdev= 6.28, samples=231 lat (usec) : 50=0.39%, 100=1.24%, 250=0.16%, 1000=0.13% lat (msec) : 2=6.48%, 4=4.43%, 10=6.64%, 20=12.01%, 50=40.66% lat (msec) : 100=22.82%, 250=4.95%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=5.07%, ctx=6504, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179500: Fri Jun 12 01:06:12 2026 read: IOPS=12, BW=50.8KiB/s (52.1kB/s)(6052KiB/119056msec) clat (usec): min=38, max=887661, avg=44758.94, stdev=37198.82 lat (usec): min=38, max=887662, avg=44761.54, stdev=37198.26 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 10421], 10.00th=[ 16319], 20.00th=[ 22152], | 30.00th=[ 26870], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 52691], 80.00th=[ 63177], 90.00th=[ 80217], 95.00th=[ 95945], | 99.00th=[160433], 99.50th=[200279], 99.90th=[254804], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 7, max= 119, per=25.00%, avg=50.25, stdev=20.28, samples=233 iops : min= 1, max= 29, avg=11.89, stdev= 5.12, samples=233 write: IOPS=13, BW=52.4KiB/s (53.6kB/s)(6236KiB/119056msec); 0 zone resets clat (usec): min=884, max=245306, avg=32671.26, stdev=34991.62 lat (usec): min=885, max=245308, avg=32672.88, stdev=34991.56 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1352], 10.00th=[ 1614], 20.00th=[ 3326], | 30.00th=[ 6521], 40.00th=[ 14484], 50.00th=[ 23462], 60.00th=[ 31065], | 70.00th=[ 41681], 80.00th=[ 55313], 90.00th=[ 78119], 95.00th=[ 98042], | 99.00th=[152044], 99.50th=[200279], 99.90th=[238027], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 7, max= 144, per=24.58%, avg=51.87, stdev=23.49, samples=233 iops : min= 1, max= 36, avg=12.30, stdev= 5.90, samples=233 lat (usec) : 50=0.42%, 100=1.53%, 250=0.07%, 500=0.03%, 1000=0.13% lat (msec) : 2=6.32%, 4=4.98%, 10=6.71%, 20=10.64%, 50=40.92% lat (msec) : 100=23.70%, 250=4.43%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=4.80%, ctx=6392, 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=202KiB/s (207kB/s), 50.8KiB/s-51.5KiB/s (51.0kB/s-52.8kB/s), io=23.4MiB (24.6MB), run=115286-119056msec WRITE: bw=211KiB/s (216kB/s), 52.4KiB/s-55.1KiB/s (53.6kB/s-56.4kB/s), io=24.6MiB (25.7MB), run=115286-119056msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179502: Fri Jun 12 01:06:58 2026 read: IOPS=9, BW=36.6KiB/s (37.4kB/s)(5992KiB/163879msec) clat (msec): min=5, max=1117, avg=42.62, stdev=47.07 lat (msec): min=5, max=1117, avg=42.62, stdev=47.07 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 59], 90.00th=[ 90], 95.00th=[ 120], | 99.00th=[ 205], 99.50th=[ 236], 99.90th=[ 305], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 152, per=25.23%, avg=36.58, stdev=23.70, samples=319 iops : min= 1, max= 38, avg= 8.47, stdev= 5.95, samples=319 write: IOPS=9, BW=38.4KiB/s (39.3kB/s)(6296KiB/163879msec); 0 zone resets clat (msec): min=12, max=361, avg=63.47, stdev=43.70 lat (msec): min=12, max=361, avg=63.47, stdev=43.70 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 58], | 70.00th=[ 72], 80.00th=[ 89], 90.00th=[ 121], 95.00th=[ 153], | 99.00th=[ 232], 99.50th=[ 262], 99.90th=[ 309], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 118, per=25.12%, avg=38.18, stdev=21.52, samples=321 iops : min= 1, max= 29, avg= 8.87, stdev= 5.40, samples=321 lat (msec) : 10=1.07%, 20=14.81%, 50=47.04%, 100=25.75%, 250=10.84% lat (msec) : 500=0.46%, 2000=0.03% cpu : usr=0.06%, sys=2.01%, ctx=4912, 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=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=179503: Fri Jun 12 01:06:58 2026 read: IOPS=8, BW=35.0KiB/s (36.9kB/s)(5940KiB/165020msec) clat (msec): min=4, max=899, avg=44.34, stdev=45.64 lat (msec): min=4, max=899, avg=44.34, stdev=45.64 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 64], 90.00th=[ 97], 95.00th=[ 131], | 99.00th=[ 205], 99.50th=[ 220], 99.90th=[ 347], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 134, per=25.04%, avg=36.31, stdev=23.63, samples=318 iops : min= 1, max= 33, avg= 8.39, stdev= 5.93, samples=318 write: IOPS=9, BW=38.5KiB/s (39.4kB/s)(6348KiB/165020msec); 0 zone resets clat (msec): min=10, max=374, avg=62.41, stdev=42.54 lat (msec): min=10, max=374, avg=62.41, stdev=42.54 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 48], 60.00th=[ 57], | 70.00th=[ 71], 80.00th=[ 91], 90.00th=[ 120], 95.00th=[ 153], | 99.00th=[ 211], 99.50th=[ 243], 99.90th=[ 309], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 7, max= 118, per=25.30%, avg=38.45, stdev=22.74, samples=321 iops : min= 1, max= 29, avg= 8.93, stdev= 5.71, samples=321 lat (msec) : 10=1.37%, 20=13.87%, 50=47.36%, 100=24.28%, 250=12.83% lat (msec) : 500=0.26%, 1000=0.03% cpu : usr=0.06%, sys=1.94%, ctx=4999, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179504: Fri Jun 12 01:06:58 2026 read: IOPS=9, BW=36.0KiB/s (37.9kB/s)(6028KiB/162961msec) clat (msec): min=5, max=312, avg=42.68, stdev=37.01 lat (msec): min=5, max=312, avg=42.68, stdev=37.01 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 62], 90.00th=[ 91], 95.00th=[ 121], | 99.00th=[ 178], 99.50th=[ 207], 99.90th=[ 300], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 134, per=25.51%, avg=36.98, stdev=23.02, samples=317 iops : min= 1, max= 33, avg= 8.57, stdev= 5.79, samples=317 write: IOPS=9, BW=38.4KiB/s (39.3kB/s)(6260KiB/162961msec); 0 zone resets clat (msec): min=12, max=929, avg=62.97, stdev=46.75 lat (msec): min=12, max=929, avg=62.97, stdev=46.75 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 50], 60.00th=[ 58], | 70.00th=[ 70], 80.00th=[ 89], 90.00th=[ 115], 95.00th=[ 146], | 99.00th=[ 211], 99.50th=[ 245], 99.90th=[ 372], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 104, per=25.28%, avg=38.43, stdev=21.19, samples=317 iops : min= 1, max= 26, avg= 8.93, stdev= 5.31, samples=317 lat (msec) : 10=1.66%, 20=12.40%, 50=48.05%, 100=26.37%, 250=11.20% lat (msec) : 500=0.29%, 1000=0.03% cpu : usr=0.05%, sys=2.10%, ctx=4830, 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=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=179505: Fri Jun 12 01:06:58 2026 read: IOPS=9, BW=37.0KiB/s (37.9kB/s)(6052KiB/163532msec) clat (msec): min=6, max=347, avg=42.28, stdev=39.01 lat (msec): min=6, max=347, avg=42.28, stdev=39.01 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 60], 90.00th=[ 94], 95.00th=[ 129], | 99.00th=[ 192], 99.50th=[ 220], 99.90th=[ 300], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 7, max= 143, per=26.01%, avg=37.72, stdev=23.88, samples=312 iops : min= 1, max= 35, avg= 8.75, stdev= 6.00, samples=312 write: IOPS=9, BW=38.1KiB/s (39.0kB/s)(6236KiB/163532msec); 0 zone resets clat (msec): min=10, max=957, avg=63.76, stdev=47.19 lat (msec): min=10, max=957, avg=63.77, stdev=47.18 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 38], 40.00th=[ 44], 50.00th=[ 51], 60.00th=[ 60], | 70.00th=[ 72], 80.00th=[ 90], 90.00th=[ 120], 95.00th=[ 144], | 99.00th=[ 215], 99.50th=[ 247], 99.90th=[ 376], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 128, per=25.16%, avg=38.25, stdev=21.55, samples=317 iops : min= 1, max= 32, avg= 8.88, stdev= 5.41, samples=317 lat (msec) : 10=2.08%, 20=14.03%, 50=45.87%, 100=25.55%, 250=12.17% lat (msec) : 500=0.26%, 1000=0.03% cpu : usr=0.05%, sys=1.93%, ctx=4833, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=146KiB/s (149kB/s), 35.0KiB/s-37.0KiB/s (36.9kB/s-37.9kB/s), io=23.4MiB (24.6MB), run=162961-165020msec WRITE: bw=152KiB/s (156kB/s), 38.1KiB/s-38.5KiB/s (39.0kB/s-39.4kB/s), io=24.6MiB (25.7MB), run=162961-165020msec 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=179545: Fri Jun 12 01:07:44 2026 read: IOPS=10, BW=169KiB/s (173kB/s)(5920KiB/34975msec) clat (usec): min=39, max=261957, avg=50478.76, stdev=34960.56 lat (usec): min=40, max=261958, avg=50480.07, stdev=34960.61 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 62], 10.00th=[ 117], 20.00th=[ 25822], | 30.00th=[ 32375], 40.00th=[ 39584], 50.00th=[ 46400], 60.00th=[ 53740], | 70.00th=[ 63177], 80.00th=[ 71828], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[162530], 99.50th=[200279], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 56, max= 445, per=24.76%, avg=169.36, stdev=64.65, samples=69 iops : min= 3, max= 27, avg= 9.81, stdev= 4.05, samples=69 write: IOPS=11, BW=182KiB/s (186kB/s)(6368KiB/34975msec); 0 zone resets clat (usec): min=1667, max=223028, avg=39919.78, stdev=40005.33 lat (usec): min=1669, max=223032, avg=39936.36, stdev=40037.18 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1991], 10.00th=[ 3064], 20.00th=[ 6194], | 30.00th=[ 10683], 40.00th=[ 18220], 50.00th=[ 26346], 60.00th=[ 39060], | 70.00th=[ 48497], 80.00th=[ 69731], 90.00th=[ 99091], 95.00th=[119014], | 99.00th=[181404], 99.50th=[191890], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 30, max= 415, per=25.62%, avg=184.44, stdev=83.96, samples=68 iops : min= 1, max= 25, avg=10.76, stdev= 5.33, samples=68 lat (usec) : 50=0.26%, 100=4.30%, 250=0.52%, 500=0.13% lat (msec) : 2=2.73%, 4=4.95%, 10=7.42%, 20=8.85%, 50=34.38% lat (msec) : 100=27.99%, 250=8.33%, 500=0.13% cpu : usr=0.07%, sys=5.16%, ctx=1718, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179546: Fri Jun 12 01:07:44 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5744KiB/34698msec) clat (usec): min=39, max=177523, avg=51561.11, stdev=30534.84 lat (usec): min=40, max=177523, avg=51562.30, stdev=30534.83 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 73], 10.00th=[ 20317], 20.00th=[ 28443], | 30.00th=[ 34341], 40.00th=[ 40633], 50.00th=[ 46400], 60.00th=[ 55837], | 70.00th=[ 64750], 80.00th=[ 73925], 90.00th=[ 88605], 95.00th=[110625], | 99.00th=[152044], 99.50th=[162530], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 28, max= 381, per=24.12%, avg=164.97, stdev=69.63, samples=68 iops : min= 1, max= 23, avg= 9.53, stdev= 4.40, samples=68 write: IOPS=11, BW=189KiB/s (193kB/s)(6544KiB/34698msec); 0 zone resets clat (usec): min=1228, max=236110, avg=38893.19, stdev=37469.03 lat (usec): min=1229, max=236112, avg=38895.60, stdev=37469.00 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2040], 10.00th=[ 3032], 20.00th=[ 6915], | 30.00th=[ 11469], 40.00th=[ 19006], 50.00th=[ 27132], 60.00th=[ 36963], | 70.00th=[ 51643], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[112722], | 99.00th=[156238], 99.50th=[170918], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 28, max= 408, per=26.25%, avg=189.01, stdev=78.82, samples=68 iops : min= 1, max= 25, avg=11.06, stdev= 5.00, samples=68 lat (usec) : 50=0.26%, 100=2.73%, 250=0.39%, 500=0.13% lat (msec) : 2=2.60%, 4=4.43%, 10=7.03%, 20=8.59%, 50=36.20% lat (msec) : 100=30.34%, 250=7.29% cpu : usr=0.08%, sys=5.06%, ctx=1723, 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=179547: Fri Jun 12 01:07:44 2026 read: IOPS=11, BW=181KiB/s (185kB/s)(6256KiB/34623msec) clat (usec): min=39, max=270709, avg=50865.09, stdev=35179.27 lat (usec): min=40, max=270711, avg=50866.35, stdev=35179.27 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 76], 10.00th=[ 16319], 20.00th=[ 26870], | 30.00th=[ 33817], 40.00th=[ 40109], 50.00th=[ 45876], 60.00th=[ 51119], | 70.00th=[ 60031], 80.00th=[ 72877], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[198181], 99.50th=[261096], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 55, max= 317, per=26.40%, avg=180.54, stdev=66.84, samples=68 iops : min= 3, max= 19, avg=10.53, stdev= 4.21, samples=68 write: IOPS=10, BW=174KiB/s (178kB/s)(6032KiB/34623msec); 0 zone resets clat (usec): min=1687, max=197527, avg=38408.26, stdev=37481.91 lat (usec): min=1688, max=197529, avg=38410.61, stdev=37482.08 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2114], 10.00th=[ 2966], 20.00th=[ 5145], | 30.00th=[ 9765], 40.00th=[ 16450], 50.00th=[ 27657], 60.00th=[ 36439], | 70.00th=[ 51643], 80.00th=[ 68682], 90.00th=[ 93848], 95.00th=[115868], | 99.00th=[149947], 99.50th=[166724], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 61, max= 411, per=24.22%, avg=174.37, stdev=76.07, samples=67 iops : min= 3, max= 25, avg=10.12, stdev= 4.85, samples=67 lat (usec) : 50=0.39%, 100=3.26%, 250=0.52%, 500=0.13%, 750=0.13% lat (msec) : 2=2.08%, 4=5.21%, 10=7.94%, 20=7.42%, 50=36.59% lat (msec) : 100=29.30%, 250=6.77%, 500=0.26% cpu : usr=0.04%, sys=4.92%, ctx=1735, 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=179548: Fri Jun 12 01:07:44 2026 read: IOPS=10, BW=175KiB/s (179kB/s)(6032KiB/34435msec) clat (usec): min=38, max=230252, avg=49789.79, stdev=34948.48 lat (usec): min=38, max=230253, avg=49793.94, stdev=34947.26 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 97], 20.00th=[ 23200], | 30.00th=[ 32113], 40.00th=[ 39584], 50.00th=[ 47449], 60.00th=[ 54789], | 70.00th=[ 60556], 80.00th=[ 73925], 90.00th=[ 87557], 95.00th=[108528], | 99.00th=[191890], 99.50th=[225444], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 32, max= 318, per=25.72%, avg=175.91, stdev=66.83, samples=66 iops : min= 2, max= 19, avg=10.24, stdev= 4.17, samples=66 write: IOPS=11, BW=182KiB/s (186kB/s)(6256KiB/34435msec); 0 zone resets clat (usec): min=1412, max=198702, avg=39868.98, stdev=37735.11 lat (usec): min=1413, max=198703, avg=39874.43, stdev=37733.44 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1991], 10.00th=[ 3326], 20.00th=[ 7373], | 30.00th=[ 12911], 40.00th=[ 20055], 50.00th=[ 28443], 60.00th=[ 37487], | 70.00th=[ 49546], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[113771], | 99.00th=[181404], 99.50th=[196084], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 61, max= 509, per=24.96%, avg=179.69, stdev=86.09, samples=67 iops : min= 3, max= 31, avg=10.48, stdev= 5.44, samples=67 lat (usec) : 50=0.52%, 100=4.43%, 250=0.65%, 500=0.13%, 750=0.13% lat (msec) : 2=2.99%, 4=2.99%, 10=6.12%, 20=10.03%, 50=33.98% lat (msec) : 100=30.47%, 250=7.55% cpu : usr=0.06%, sys=5.24%, ctx=1652, 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=685KiB/s (701kB/s), 166KiB/s-181KiB/s (170kB/s-185kB/s), io=23.4MiB (24.5MB), run=34435-34975msec WRITE: bw=721KiB/s (738kB/s), 174KiB/s-189KiB/s (178kB/s-193kB/s), io=24.6MiB (25.8MB), run=34435-34975msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179549: Fri Jun 12 01:07:58 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(5920KiB/47347msec) clat (msec): min=7, max=251, avg=50.54, stdev=41.40 lat (msec): min=7, max=251, avg=50.54, stdev=41.40 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 38], 60.00th=[ 43], | 70.00th=[ 54], 80.00th=[ 69], 90.00th=[ 105], 95.00th=[ 138], | 99.00th=[ 222], 99.50th=[ 234], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 30, max= 382, per=25.36%, avg=125.26, stdev=78.36, samples=92 iops : min= 1, max= 23, avg= 7.02, stdev= 4.92, samples=92 write: IOPS=8, BW=134KiB/s (138kB/s)(6368KiB/47347msec); 0 zone resets clat (msec): min=15, max=327, avg=71.64, stdev=45.47 lat (msec): min=15, max=327, avg=71.64, stdev=45.48 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 34], | 30.00th=[ 42], 40.00th=[ 51], 50.00th=[ 59], 60.00th=[ 72], | 70.00th=[ 85], 80.00th=[ 108], 90.00th=[ 136], 95.00th=[ 163], | 99.00th=[ 203], 99.50th=[ 257], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 28, max= 415, per=26.06%, avg=135.51, stdev=82.14, samples=92 iops : min= 1, max= 25, avg= 7.65, stdev= 5.19, samples=92 lat (msec) : 10=0.39%, 20=9.11%, 50=43.36%, 100=29.69%, 250=17.06% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=2.08%, ctx=1260, 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=179550: Fri Jun 12 01:07:58 2026 read: IOPS=7, BW=119KiB/s (122kB/s)(5744KiB/48398msec) clat (msec): min=7, max=227, avg=48.63, stdev=41.28 lat (msec): min=7, max=227, avg=48.63, stdev=41.28 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 51], 80.00th=[ 73], 90.00th=[ 111], 95.00th=[ 136], | 99.00th=[ 203], 99.50th=[ 226], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 29, max= 510, per=24.72%, avg=122.13, stdev=89.04, samples=91 iops : min= 1, max= 31, avg= 6.80, stdev= 5.59, samples=91 write: IOPS=8, BW=135KiB/s (138kB/s)(6544KiB/48398msec); 0 zone resets clat (msec): min=11, max=348, avg=74.61, stdev=52.13 lat (msec): min=11, max=348, avg=74.62, stdev=52.14 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 34], | 30.00th=[ 42], 40.00th=[ 50], 50.00th=[ 59], 60.00th=[ 70], | 70.00th=[ 86], 80.00th=[ 108], 90.00th=[ 150], 95.00th=[ 184], | 99.00th=[ 241], 99.50th=[ 253], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 31, max= 412, per=26.01%, avg=135.25, stdev=81.86, samples=93 iops : min= 1, max= 25, avg= 7.65, stdev= 5.17, samples=93 lat (msec) : 10=0.91%, 20=11.33%, 50=42.19%, 100=27.34%, 250=17.84% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=2.05%, ctx=1300, 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=179551: Fri Jun 12 01:07:58 2026 read: IOPS=8, BW=131KiB/s (134kB/s)(6256KiB/47683msec) clat (msec): min=6, max=218, avg=48.58, stdev=39.09 lat (msec): min=6, max=218, avg=48.59, stdev=39.09 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 20], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 42], | 70.00th=[ 53], 80.00th=[ 72], 90.00th=[ 105], 95.00th=[ 132], | 99.00th=[ 190], 99.50th=[ 197], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 31, max= 502, per=27.74%, avg=137.01, stdev=94.80, samples=90 iops : min= 1, max= 31, avg= 7.76, stdev= 5.98, samples=90 write: IOPS=7, BW=127KiB/s (130kB/s)(6032KiB/47683msec); 0 zone resets clat (msec): min=15, max=266, avg=75.26, stdev=48.89 lat (msec): min=15, max=266, avg=75.27, stdev=48.90 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 44], 40.00th=[ 52], 50.00th=[ 61], 60.00th=[ 73], | 70.00th=[ 87], 80.00th=[ 109], 90.00th=[ 146], 95.00th=[ 184], | 99.00th=[ 245], 99.50th=[ 255], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 30, max= 447, per=24.13%, avg=125.48, stdev=72.73, samples=94 iops : min= 1, max= 27, avg= 7.02, stdev= 4.58, samples=94 lat (msec) : 10=2.21%, 20=9.38%, 50=42.19%, 100=28.26%, 250=17.71% lat (msec) : 500=0.26% cpu : usr=0.04%, sys=1.99%, ctx=1233, 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=179552: Fri Jun 12 01:07:58 2026 read: IOPS=7, BW=126KiB/s (129kB/s)(6032KiB/47812msec) clat (msec): min=4, max=222, avg=49.69, stdev=40.53 lat (msec): min=4, max=222, avg=49.69, stdev=40.53 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 43], | 70.00th=[ 52], 80.00th=[ 73], 90.00th=[ 108], 95.00th=[ 142], | 99.00th=[ 205], 99.50th=[ 213], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 30, max= 411, per=25.74%, avg=127.17, stdev=84.48, samples=92 iops : min= 1, max= 25, avg= 7.13, stdev= 5.35, samples=92 write: IOPS=8, BW=131KiB/s (134kB/s)(6256KiB/47812msec); 0 zone resets clat (msec): min=8, max=340, avg=73.26, stdev=49.98 lat (msec): min=8, max=340, avg=73.26, stdev=49.98 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 27], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 50], 50.00th=[ 60], 60.00th=[ 69], | 70.00th=[ 85], 80.00th=[ 111], 90.00th=[ 142], 95.00th=[ 163], | 99.00th=[ 262], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 29, max= 408, per=25.31%, avg=131.60, stdev=82.10, samples=93 iops : min= 1, max= 25, avg= 7.41, stdev= 5.17, samples=93 lat (msec) : 10=1.17%, 20=8.85%, 50=45.18%, 100=26.30%, 250=17.97% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=1.93%, ctx=1236, 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=495KiB/s (507kB/s), 119KiB/s-131KiB/s (122kB/s-134kB/s), io=23.4MiB (24.5MB), run=47347-48398msec WRITE: bw=521KiB/s (533kB/s), 127KiB/s-135KiB/s (130kB/s-138kB/s), io=24.6MiB (25.8MB), run=47347-48398msec 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=179564: Fri Jun 12 01:08:14 2026 read: IOPS=2, BW=2580KiB/s (2642kB/s)(7168KiB/2778msec) clat (msec): min=122, max=497, avg=213.70, stdev=133.90 lat (msec): min=122, max=497, avg=213.70, stdev=133.90 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 124], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 178], 60.00th=[ 180], | 70.00th=[ 180], 80.00th=[ 259], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 2039, max= 4071, per=76.63%, avg=3384.00, stdev=1164.89, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1843KiB/s (1887kB/s)(5120KiB/2778msec); 0 zone resets clat (msec): min=138, max=508, avg=243.71, stdev=155.29 lat (msec): min=138, max=508, avg=243.80, stdev=155.27 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 157], | 70.00th=[ 259], 80.00th=[ 259], 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= 1973, max= 6119, per=54.60%, avg=3375.67, stdev=2376.00, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 250=66.67%, 500=25.00%, 750=8.33% cpu : usr=0.04%, sys=4.32%, ctx=60, 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=179565: Fri Jun 12 01:08:14 2026 read: IOPS=0, BW=448KiB/s (459kB/s)(2048KiB/4567msec) clat (msec): min=113, max=204, avg=158.63, stdev=64.37 lat (msec): min=113, max=204, avg=158.63, stdev=64.37 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=[ 205], | 70.00th=[ 205], 80.00th=[ 205], 90.00th=[ 205], 95.00th=[ 205], | 99.00th=[ 205], 99.50th=[ 205], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 2031, max= 2048, per=46.18%, avg=2039.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2242KiB/s (2296kB/s)(10.0MiB/4567msec); 0 zone resets clat (msec): min=99, max=912, avg=408.12, stdev=274.03 lat (msec): min=99, max=912, avg=408.22, stdev=274.03 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 313], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 342], 80.00th=[ 684], 90.00th=[ 735], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1980, max= 4096, per=52.62%, avg=3253.80, stdev=1134.34, samples=5 iops : min= 1, max= 4, avg= 2.40, stdev= 1.34, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=4.56%, 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=179566: Fri Jun 12 01:08:14 2026 read: IOPS=1, BW=1330KiB/s (1362kB/s)(6144KiB/4620msec) clat (msec): min=90, max=1353, avg=403.85, stdev=478.17 lat (msec): min=90, max=1353, avg=403.85, stdev=478.17 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 112], | 30.00th=[ 112], 40.00th=[ 230], 50.00th=[ 230], 60.00th=[ 234], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 1969, max= 3946, per=56.57%, avg=2498.25, stdev=965.74, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1330KiB/s (1362kB/s)(6144KiB/4620msec); 0 zone resets clat (msec): min=201, max=554, avg=330.74, stdev=120.99 lat (msec): min=201, max=554, avg=330.85, stdev=121.00 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 317], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1343, max= 4071, per=38.40%, avg=2374.00, stdev=1178.21, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.04%, sys=4.24%, ctx=74, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179567: Fri Jun 12 01:08:14 2026 read: IOPS=1, BW=1104KiB/s (1131kB/s)(5120KiB/4637msec) clat (msec): min=72, max=716, avg=240.59, stdev=270.83 lat (msec): min=72, max=716, avg=240.59, stdev=270.83 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 73], | 30.00th=[ 77], 40.00th=[ 77], 50.00th=[ 144], 60.00th=[ 144], | 70.00th=[ 194], 80.00th=[ 194], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1969, max= 4079, per=61.01%, avg=2694.33, stdev=1199.61, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1546KiB/s (1583kB/s)(7168KiB/4637msec); 0 zone resets clat (msec): min=146, max=839, avg=457.95, stdev=268.32 lat (msec): min=146, max=839, avg=458.04, stdev=268.32 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 167], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 523], 60.00th=[ 535], | 70.00th=[ 535], 80.00th=[ 709], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1363, max= 2043, per=30.97%, avg=1914.67, stdev=271.52, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 100=16.67%, 250=33.33%, 500=8.33%, 750=33.33%, 1000=8.33% cpu : usr=0.00%, sys=5.50%, ctx=106, 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=4417KiB/s (4523kB/s), 448KiB/s-2580KiB/s (459kB/s-2642kB/s), io=20.0MiB (20.0MB), run=2778-4637msec WRITE: bw=6183KiB/s (6332kB/s), 1330KiB/s-2242KiB/s (1362kB/s-2296kB/s), io=28.0MiB (29.4MB), run=2778-4637msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179569: Fri Jun 12 01:08:15 2026 read: IOPS=2, BW=2271KiB/s (2325kB/s)(7168KiB/3157msec) clat (msec): min=118, max=362, avg=208.40, stdev=77.93 lat (msec): min=118, max=362, avg=208.40, stdev=77.93 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 161], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 209], 60.00th=[ 222], | 70.00th=[ 222], 80.00th=[ 224], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 1868, max= 3663, per=52.20%, avg=2270.20, stdev=780.15, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1622KiB/s (1661kB/s)(5120KiB/3157msec); 0 zone resets clat (msec): min=186, max=511, avg=319.58, stdev=127.14 lat (msec): min=186, max=511, avg=319.69, stdev=127.20 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 372], 80.00th=[ 372], 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= 1868, max= 3792, per=41.94%, avg=2553.33, stdev=1074.75, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=66.67%, 500=25.00%, 750=8.33% cpu : usr=0.06%, sys=16.13%, ctx=247, 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=179570: Fri Jun 12 01:08:15 2026 read: IOPS=0, BW=435KiB/s (445kB/s)(2048KiB/4709msec) clat (usec): min=1262, max=210583, avg=105922.99, stdev=148012.96 lat (usec): min=1263, max=210587, avg=105925.07, stdev=148014.44 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1270], 10.00th=[ 1270], 20.00th=[ 1270], | 30.00th=[ 1270], 40.00th=[ 1270], 50.00th=[ 1270], 60.00th=[210764], | 70.00th=[210764], 80.00th=[210764], 90.00th=[210764], 95.00th=[210764], | 99.00th=[210764], 99.50th=[210764], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 1992, max= 2019, per=46.11%, avg=2005.50, stdev=19.09, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2175KiB/s (2227kB/s)(10.0MiB/4709msec); 0 zone resets clat (msec): min=133, max=930, avg=419.98, stdev=263.56 lat (msec): min=133, max=930, avg=420.11, stdev=263.55 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 182], | 30.00th=[ 211], 40.00th=[ 262], 50.00th=[ 268], 60.00th=[ 355], | 70.00th=[ 550], 80.00th=[ 625], 90.00th=[ 684], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 1868, max= 4055, per=41.66%, avg=2536.43, stdev=1032.88, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 2=8.33%, 250=33.33%, 500=25.00%, 750=25.00%, 1000=8.33% cpu : usr=0.06%, sys=13.89%, ctx=148, 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=179571: Fri Jun 12 01:08:15 2026 read: IOPS=1, BW=1995KiB/s (2043kB/s)(6144KiB/3080msec) clat (usec): min=467, max=279699, avg=159463.75, stdev=125004.80 lat (usec): min=469, max=279700, avg=159465.29, stdev=125004.73 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 1106], | 30.00th=[ 1106], 40.00th=[212861], 50.00th=[212861], 60.00th=[221250], | 70.00th=[240124], 80.00th=[240124], 90.00th=[278922], 95.00th=[278922], | 99.00th=[278922], 99.50th=[278922], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 1896, max= 5605, per=86.24%, avg=3750.50, stdev=2622.66, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1995KiB/s (2043kB/s)(6144KiB/3080msec); 0 zone resets clat (msec): min=157, max=547, avg=305.89, stdev=141.75 lat (msec): min=157, max=547, avg=305.96, stdev=141.78 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 338], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 1868, max= 4000, per=42.66%, avg=2597.33, stdev=1215.07, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=15.56%, ctx=117, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179572: Fri Jun 12 01:08:15 2026 read: IOPS=1, BW=1482KiB/s (1518kB/s)(5120KiB/3454msec) clat (usec): min=391, max=238396, avg=87309.28, stdev=117987.97 lat (usec): min=393, max=238397, avg=87310.56, stdev=117988.07 clat percentiles (usec): | 1.00th=[ 392], 5.00th=[ 392], 10.00th=[ 392], 20.00th=[ 392], | 30.00th=[ 1532], 40.00th=[ 1532], 50.00th=[ 4015], 60.00th=[ 4015], | 70.00th=[191890], 80.00th=[191890], 90.00th=[238027], 95.00th=[238027], | 99.00th=[238027], 99.50th=[238027], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 7585, max= 7585, per=100.00%, avg=7585.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2075KiB/s (2125kB/s)(7168KiB/3454msec); 0 zone resets clat (msec): min=136, max=759, avg=372.70, stdev=217.35 lat (msec): min=136, max=759, avg=372.79, stdev=217.36 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 161], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 347], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 518], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1924, max= 3737, per=41.95%, avg=2553.67, stdev=1025.50, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 10=8.33%, 250=33.33%, 500=25.00%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=11.87%, ctx=168, 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=4349KiB/s (4453kB/s), 435KiB/s-2271KiB/s (445kB/s-2325kB/s), io=20.0MiB (20.0MB), run=3080-4709msec WRITE: bw=6089KiB/s (6235kB/s), 1622KiB/s-2175KiB/s (1661kB/s-2227kB/s), io=28.0MiB (29.4MB), run=3080-4709msec 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=179582: Fri Jun 12 01:08:28 2026 read: IOPS=0, BW=3680KiB/s (3768kB/s)(12.0MiB/3339msec) clat (msec): min=954, max=1086, avg=1024.01, stdev=66.64 lat (msec): min=954, max=1086, avg=1024.01, stdev=66.64 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 1028], 50.00th=[ 1028], 60.00th=[ 1028], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8143, max= 8192, per=100.00%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=8.90%, ctx=312, 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=179584: Fri Jun 12 01:08:28 2026 read: IOPS=0, BW=1288KiB/s (1319kB/s)(4096KiB/3180msec) clat (nsec): min=1171.0M, max=1171.0M, avg=1171958147.00, stdev= 0.00 lat (nsec): min=1171.0M, max=1171.0M, avg=1171960881.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1167], 5.00th=[ 1167], 10.00th=[ 1167], 20.00th=[ 1167], | 30.00th=[ 1167], 40.00th=[ 1167], 50.00th=[ 1167], 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= 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=2576KiB/s (2638kB/s)(8192KiB/3180msec); 0 zone resets clat (msec): min=824, max=1037, avg=931.11, stdev=150.46 lat (msec): min=825, max=1037, avg=931.55, stdev=150.38 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 1036], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 8175, max= 8175, per=91.46%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.21%, ctx=70, 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=179586: Fri Jun 12 01:08:28 2026 write: IOPS=0, BW=3352KiB/s (3432kB/s)(12.0MiB/3666msec); 0 zone resets clat (msec): min=947, max=1428, avg=1150.79, stdev=248.98 lat (msec): min=950, max=1429, avg=1151.81, stdev=248.27 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 7937, max= 8192, per=90.23%, avg=8064.50, stdev=180.31, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.08%, sys=5.92%, ctx=84, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=179587: Fri Jun 12 01:08:28 2026 write: IOPS=0, BW=3897KiB/s (3991kB/s)(12.0MiB/3153msec); 0 zone resets clat (msec): min=388, max=1979, avg=985.47, stdev=866.84 lat (msec): min=388, max=1980, avg=986.13, stdev=866.63 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1972], 80.00th=[ 1972], 90.00th=[ 1972], 95.00th=[ 1972], | 99.00th=[ 1972], 99.50th=[ 1972], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 5988, max= 8159, per=79.14%, avg=7073.50, stdev=1535.13, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.10%, sys=3.17%, ctx=69, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4907KiB/s (5025kB/s), 1288KiB/s-3680KiB/s (1319kB/s-3768kB/s), io=16.0MiB (16.8MB), run=3180-3339msec WRITE: bw=8938KiB/s (9153kB/s), 2576KiB/s-3897KiB/s (2638kB/s-3991kB/s), io=32.0MiB (33.6MB), run=3153-3666msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179580: Fri Jun 12 01:08:29 2026 read: IOPS=1, BW=6153KiB/s (6301kB/s)(12.0MiB/1997msec) clat (msec): min=306, max=1059, avg=562.67, stdev=430.74 lat (msec): min=306, max=1059, avg=562.67, stdev=430.74 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 321], | 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=16157, max=16157, per=100.00%, avg=16157.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.46%, ctx=59, 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=179581: Fri Jun 12 01:08:29 2026 read: IOPS=0, BW=1033KiB/s (1057kB/s)(4096KiB/3967msec) clat (nsec): min=1907.5M, max=1907.5M, avg=1907457850.00, stdev= 0.00 lat (nsec): min=1907.5M, max=1907.5M, avg=1907459477.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1905], 5.00th=[ 1905], 10.00th=[ 1905], 20.00th=[ 1905], | 30.00th=[ 1905], 40.00th=[ 1905], 50.00th=[ 1905], 60.00th=[ 1905], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2065KiB/s (2115kB/s)(8192KiB/3967msec); 0 zone resets clat (msec): min=808, max=1066, avg=937.46, stdev=182.10 lat (msec): min=809, max=1066, avg=937.91, stdev=182.23 clat percentiles (msec): | 1.00th=[ 810], 5.00th=[ 810], 10.00th=[ 810], 20.00th=[ 810], | 30.00th=[ 810], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 1070], | 70.00th=[ 1070], 80.00th=[ 1070], 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= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.62%, ctx=45, 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=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=179583: Fri Jun 12 01:08:29 2026 write: IOPS=0, BW=2989KiB/s (3061kB/s)(12.0MiB/4111msec); 0 zone resets clat (msec): min=327, max=2425, avg=1264.77, stdev=1066.86 lat (msec): min=327, max=2425, avg=1265.13, stdev=1066.73 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 1045], 50.00th=[ 1045], 60.00th=[ 1045], | 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= 8047, max= 8047, per=100.00%, avg=8047.00, 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=0.02%, sys=2.92%, ctx=51, 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=179585: Fri Jun 12 01:08:29 2026 write: IOPS=0, BW=3644KiB/s (3732kB/s)(12.0MiB/3372msec); 0 zone resets clat (msec): min=930, max=1252, avg=1071.48, stdev=164.99 lat (msec): min=930, max=1253, avg=1071.89, stdev=164.99 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 1028], 50.00th=[ 1028], 60.00th=[ 1028], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7953, max= 8078, per=100.00%, avg=8015.50, stdev=88.39, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.17%, ctx=68, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4130KiB/s (4229kB/s), 1033KiB/s-6153KiB/s (1057kB/s-6301kB/s), io=16.0MiB (16.8MB), run=1997-3967msec WRITE: bw=7971KiB/s (8162kB/s), 2065KiB/s-3644KiB/s (2115kB/s-3732kB/s), io=32.0MiB (33.6MB), run=3372-4111msec