== sanity test 398b: DIO and buffer IO race ============== 15:27:34 (1775849254) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.53268 s, 7.7 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=155244: Fri Apr 10 15:30:00 2026 read: IOPS=11, BW=47.2KiB/s (48.3kB/s)(5992KiB/127037msec) clat (usec): min=32, max=253475, avg=40185.39, stdev=30014.67 lat (usec): min=33, max=253477, avg=40187.78, stdev=30015.11 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 73], 20.00th=[ 17433], | 30.00th=[ 23462], 40.00th=[ 29492], 50.00th=[ 35390], 60.00th=[ 41681], | 70.00th=[ 50070], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[ 93848], | 99.00th=[137364], 99.50th=[154141], 99.90th=[221250], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 7, max= 126, per=25.08%, avg=46.90, stdev=21.24, samples=249 iops : min= 1, max= 31, avg=11.09, stdev= 5.35, samples=249 write: IOPS=12, BW=49.6KiB/s (50.7kB/s)(6296KiB/127037msec); 0 zone resets clat (usec): min=1121, max=711649, avg=42198.23, stdev=48794.75 lat (usec): min=1122, max=711650, avg=42200.63, stdev=48794.07 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1319], 10.00th=[ 1827], 20.00th=[ 4293], | 30.00th=[ 8455], 40.00th=[ 18220], 50.00th=[ 30278], 60.00th=[ 41157], | 70.00th=[ 54789], 80.00th=[ 72877], 90.00th=[ 95945], 95.00th=[121111], | 99.00th=[189793], 99.50th=[316670], 99.90th=[463471], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 7, max= 126, per=25.07%, avg=49.14, stdev=21.17, samples=250 iops : min= 1, max= 31, avg=11.64, stdev= 5.30, samples=250 lat (usec) : 50=0.94%, 100=4.62%, 250=0.49%, 500=0.10%, 1000=0.03% lat (msec) : 2=5.63%, 4=4.46%, 10=6.77%, 20=9.67%, 50=35.51% lat (msec) : 100=25.59%, 250=5.86%, 500=0.29%, 750=0.03% cpu : usr=0.08%, sys=5.54%, ctx=6444, 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=155245: Fri Apr 10 15:30:00 2026 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(5940KiB/125549msec) clat (usec): min=27, max=891220, avg=40606.66, stdev=38650.00 lat (usec): min=28, max=891221, avg=40613.12, stdev=38656.32 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 55], 10.00th=[ 68], 20.00th=[ 18220], | 30.00th=[ 23462], 40.00th=[ 28967], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 49021], 80.00th=[ 60031], 90.00th=[ 80217], 95.00th=[ 93848], | 99.00th=[143655], 99.50th=[175113], 99.90th=[358613], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 7, max= 111, per=25.09%, avg=46.91, stdev=20.59, samples=247 iops : min= 1, max= 27, avg=11.09, stdev= 5.15, samples=247 write: IOPS=12, BW=50.6KiB/s (51.8kB/s)(6348KiB/125549msec); 0 zone resets clat (usec): min=1001, max=362362, avg=40807.74, stdev=41559.51 lat (usec): min=1002, max=362363, avg=40811.95, stdev=41557.67 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1303], 10.00th=[ 1811], 20.00th=[ 4293], | 30.00th=[ 8717], 40.00th=[ 20317], 50.00th=[ 31065], 60.00th=[ 42206], | 70.00th=[ 53740], 80.00th=[ 68682], 90.00th=[ 94897], 95.00th=[122160], | 99.00th=[177210], 99.50th=[204473], 99.90th=[291505], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 120, per=25.73%, avg=50.43, stdev=20.09, samples=246 iops : min= 1, max= 30, avg=11.96, stdev= 5.06, samples=246 lat (usec) : 50=1.14%, 100=4.36%, 250=0.33%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=5.57%, 4=4.43%, 10=6.84%, 20=8.95%, 50=36.88% lat (msec) : 100=24.87%, 250=6.32%, 500=0.16%, 1000=0.03% cpu : usr=0.08%, sys=5.56%, ctx=6534, 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=155246: Fri Apr 10 15:30:00 2026 read: IOPS=11, BW=47.2KiB/s (48.3kB/s)(6028KiB/127802msec) clat (usec): min=31, max=734606, avg=39886.13, stdev=34993.42 lat (usec): min=32, max=734607, avg=39887.80, stdev=34993.08 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 70], 20.00th=[ 17171], | 30.00th=[ 22676], 40.00th=[ 28181], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 47973], 80.00th=[ 60556], 90.00th=[ 79168], 95.00th=[ 94897], | 99.00th=[128451], 99.50th=[156238], 99.90th=[242222], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 133, per=24.98%, avg=46.72, stdev=21.19, samples=250 iops : min= 1, max= 33, avg=11.03, stdev= 5.33, samples=250 write: IOPS=12, BW=48.0KiB/s (50.2kB/s)(6260KiB/127802msec); 0 zone resets clat (usec): min=1080, max=444545, avg=42968.46, stdev=45596.96 lat (usec): min=1081, max=444546, avg=42973.72, stdev=45595.61 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1336], 10.00th=[ 1893], 20.00th=[ 4359], | 30.00th=[ 8979], 40.00th=[ 20317], 50.00th=[ 31851], 60.00th=[ 42206], | 70.00th=[ 55837], 80.00th=[ 73925], 90.00th=[102237], 95.00th=[128451], | 99.00th=[170918], 99.50th=[210764], 99.90th=[392168], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 7, max= 125, per=24.61%, avg=48.24, stdev=20.14, samples=251 iops : min= 1, max= 31, avg=11.42, stdev= 5.09, samples=251 lat (usec) : 50=1.14%, 100=4.13%, 250=0.42%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.63%, 4=4.10%, 10=6.87%, 20=9.86%, 50=36.69% lat (msec) : 100=23.63%, 250=7.06%, 500=0.23%, 750=0.03% cpu : usr=0.06%, sys=5.36%, ctx=6580, 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=155247: Fri Apr 10 15:30:00 2026 read: IOPS=12, BW=48.9KiB/s (50.0kB/s)(6052KiB/123882msec) clat (usec): min=29, max=513341, avg=38963.11, stdev=32093.76 lat (usec): min=30, max=513341, avg=38966.40, stdev=32092.75 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 55], 10.00th=[ 73], 20.00th=[ 17171], | 30.00th=[ 22938], 40.00th=[ 27919], 50.00th=[ 33162], 60.00th=[ 39060], | 70.00th=[ 47449], 80.00th=[ 59507], 90.00th=[ 77071], 95.00th=[ 94897], | 99.00th=[135267], 99.50th=[154141], 99.90th=[354419], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 7, max= 111, per=26.17%, avg=48.94, stdev=18.77, samples=241 iops : min= 1, max= 27, avg=11.59, stdev= 4.74, samples=241 write: IOPS=12, BW=50.3KiB/s (51.5kB/s)(6236KiB/123882msec); 0 zone resets clat (usec): min=1090, max=867052, avg=41373.50, stdev=46258.80 lat (usec): min=1090, max=867053, avg=41376.81, stdev=46258.67 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1303], 10.00th=[ 1876], 20.00th=[ 4817], | 30.00th=[ 9503], 40.00th=[ 20317], 50.00th=[ 31065], 60.00th=[ 42206], | 70.00th=[ 55313], 80.00th=[ 70779], 90.00th=[ 95945], 95.00th=[113771], | 99.00th=[166724], 99.50th=[185598], 99.90th=[488637], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 141, per=25.58%, avg=50.13, stdev=21.20, samples=242 iops : min= 1, max= 35, avg=11.89, stdev= 5.33, samples=242 lat (usec) : 50=1.07%, 100=4.72%, 250=0.16%, 500=0.16%, 750=0.13% lat (msec) : 2=5.40%, 4=3.78%, 10=6.90%, 20=9.80%, 50=37.34% lat (msec) : 100=24.32%, 250=6.02%, 500=0.13%, 750=0.03%, 1000=0.03% cpu : usr=0.06%, sys=5.49%, ctx=6477, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=188KiB/s (192kB/s), 47.2KiB/s-48.9KiB/s (48.3kB/s-50.0kB/s), io=23.4MiB (24.6MB), run=123882-127802msec WRITE: bw=197KiB/s (201kB/s), 48.0KiB/s-50.6KiB/s (50.2kB/s-51.8kB/s), io=24.6MiB (25.7MB), run=123882-127802msec rand-rw: (groupid=0, jobs=1): err= 0: pid=155249: Fri Apr 10 15:32:19 2026 read: IOPS=5, BW=22.5KiB/s (23.1kB/s)(5992KiB/265712msec) clat (msec): min=5, max=805, avg=32.58, stdev=40.34 lat (msec): min=5, max=805, avg=32.58, stdev=40.34 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 42], 90.00th=[ 73], 95.00th=[ 100], | 99.00th=[ 146], 99.50th=[ 211], 99.90th=[ 567], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7, max= 87, per=28.95%, avg=26.05, stdev=16.67, samples=445 iops : min= 1, max= 21, avg= 5.89, stdev= 4.22, samples=445 write: IOPS=5, BW=23.7KiB/s (24.3kB/s)(6296KiB/265712msec); 0 zone resets clat (msec): min=36, max=616, avg=137.73, stdev=67.62 lat (msec): min=36, max=616, avg=137.73, stdev=67.62 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 95], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 134], | 70.00th=[ 155], 80.00th=[ 186], 90.00th=[ 232], 95.00th=[ 268], | 99.00th=[ 338], 99.50th=[ 414], 99.90th=[ 558], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 55, per=24.90%, avg=23.41, stdev=10.61, samples=518 iops : min= 1, max= 13, avg= 5.23, stdev= 2.70, samples=518 lat (msec) : 10=4.23%, 20=19.73%, 50=16.93%, 100=22.59%, 250=32.52% lat (msec) : 500=3.78%, 750=0.20%, 1000=0.03% cpu : usr=0.04%, sys=1.23%, ctx=5341, 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=155250: Fri Apr 10 15:32:19 2026 read: IOPS=5, BW=22.3KiB/s (22.8kB/s)(5940KiB/266542msec) clat (msec): min=4, max=936, avg=33.28, stdev=39.96 lat (msec): min=4, max=936, avg=33.28, stdev=39.96 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 45], 90.00th=[ 75], 95.00th=[ 101], | 99.00th=[ 157], 99.50th=[ 186], 99.90th=[ 305], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 95, per=27.85%, avg=25.07, stdev=16.94, samples=458 iops : min= 1, max= 23, avg= 5.64, stdev= 4.30, samples=458 write: IOPS=5, BW=23.8KiB/s (24.4kB/s)(6348KiB/266542msec); 0 zone resets clat (msec): min=39, max=552, avg=136.72, stdev=64.87 lat (msec): min=39, max=552, avg=136.73, stdev=64.87 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 65], 10.00th=[ 74], 20.00th=[ 87], | 30.00th=[ 97], 40.00th=[ 107], 50.00th=[ 118], 60.00th=[ 134], | 70.00th=[ 153], 80.00th=[ 178], 90.00th=[ 226], 95.00th=[ 271], | 99.00th=[ 351], 99.50th=[ 397], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 48, per=24.94%, avg=23.44, stdev=10.38, samples=522 iops : min= 1, max= 12, avg= 5.23, stdev= 2.64, samples=522 lat (msec) : 10=3.91%, 20=18.85%, 50=17.12%, 100=22.92%, 250=33.56% lat (msec) : 500=3.55%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.19%, ctx=5257, 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=155251: Fri Apr 10 15:32:19 2026 read: IOPS=5, BW=22.8KiB/s (23.4kB/s)(6028KiB/264189msec) clat (msec): min=5, max=565, avg=33.68, stdev=36.86 lat (msec): min=5, max=565, avg=33.68, stdev=36.86 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 47], 90.00th=[ 78], 95.00th=[ 104], | 99.00th=[ 159], 99.50th=[ 209], 99.90th=[ 380], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 7, max= 103, per=27.80%, avg=25.02, stdev=17.22, samples=465 iops : min= 1, max= 25, avg= 5.63, stdev= 4.35, samples=465 write: IOPS=5, BW=23.7KiB/s (24.3kB/s)(6260KiB/264189msec); 0 zone resets clat (msec): min=39, max=1044, avg=136.30, stdev=68.31 lat (msec): min=39, max=1044, avg=136.30, stdev=68.31 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 86], | 30.00th=[ 96], 40.00th=[ 107], 50.00th=[ 118], 60.00th=[ 134], | 70.00th=[ 153], 80.00th=[ 184], 90.00th=[ 226], 95.00th=[ 257], | 99.00th=[ 351], 99.50th=[ 380], 99.90th=[ 617], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 48, per=24.87%, avg=23.37, stdev=10.75, samples=516 iops : min= 1, max= 12, avg= 5.22, stdev= 2.72, samples=516 lat (msec) : 10=4.07%, 20=18.95%, 50=17.32%, 100=23.14%, 250=33.20% lat (msec) : 500=3.19%, 750=0.10%, 2000=0.03% cpu : usr=0.03%, sys=1.24%, ctx=5232, 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=155252: Fri Apr 10 15:32:19 2026 read: IOPS=5, BW=22.8KiB/s (23.3kB/s)(6052KiB/265408msec) clat (msec): min=4, max=419, avg=32.79, stdev=34.59 lat (msec): min=4, max=419, avg=32.79, stdev=34.59 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 32], 80.00th=[ 47], 90.00th=[ 77], 95.00th=[ 97], | 99.00th=[ 155], 99.50th=[ 192], 99.90th=[ 376], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 7, max= 112, per=28.15%, avg=25.33, stdev=16.79, samples=462 iops : min= 1, max= 28, avg= 5.71, stdev= 4.25, samples=462 write: IOPS=5, BW=23.5KiB/s (24.1kB/s)(6236KiB/265408msec); 0 zone resets clat (msec): min=40, max=1031, avg=138.35, stdev=67.26 lat (msec): min=40, max=1031, avg=138.35, stdev=67.26 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 66], 10.00th=[ 74], 20.00th=[ 88], | 30.00th=[ 99], 40.00th=[ 110], 50.00th=[ 122], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 184], 90.00th=[ 228], 95.00th=[ 264], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 567], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 47, per=24.64%, avg=23.17, stdev=10.38, samples=519 iops : min= 1, max= 11, avg= 5.16, stdev= 2.65, samples=519 lat (msec) : 10=4.26%, 20=20.70%, 50=15.53%, 100=22.82%, 250=33.30% lat (msec) : 500=3.26%, 750=0.10%, 2000=0.03% cpu : usr=0.03%, sys=1.21%, ctx=5236, 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=90.1KiB/s (92.2kB/s), 22.3KiB/s-22.8KiB/s (22.8kB/s-23.4kB/s), io=23.4MiB (24.6MB), run=264189-266542msec WRITE: bw=94.3KiB/s (96.6kB/s), 23.5KiB/s-23.8KiB/s (24.1kB/s-24.4kB/s), io=24.6MiB (25.7MB), run=264189-266542msec 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=155311: Fri Apr 10 15:33:03 2026 read: IOPS=11, BW=189KiB/s (194kB/s)(5920KiB/31273msec) clat (usec): min=33, max=224786, avg=42581.91, stdev=34870.90 lat (usec): min=34, max=224787, avg=42588.89, stdev=34871.40 clat percentiles (usec): | 1.00th=[ 37], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 1876], | 30.00th=[ 23987], 40.00th=[ 31065], 50.00th=[ 39060], 60.00th=[ 47449], | 70.00th=[ 54789], 80.00th=[ 67634], 90.00th=[ 84411], 95.00th=[107480], | 99.00th=[139461], 99.50th=[181404], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 62, max= 471, per=25.08%, avg=188.87, stdev=67.37, samples=61 iops : min= 3, max= 29, avg=11.05, stdev= 4.22, samples=61 write: IOPS=12, BW=204KiB/s (209kB/s)(6368KiB/31273msec); 0 zone resets clat (usec): min=1541, max=207050, avg=38594.51, stdev=40182.92 lat (usec): min=1543, max=207050, avg=38596.66, stdev=40182.94 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1860], 10.00th=[ 3490], 20.00th=[ 7373], | 30.00th=[ 10552], 40.00th=[ 15795], 50.00th=[ 24773], 60.00th=[ 33817], | 70.00th=[ 45351], 80.00th=[ 64750], 90.00th=[ 99091], 95.00th=[127402], | 99.00th=[191890], 99.50th=[202376], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 31, max= 508, per=25.76%, avg=204.03, stdev=83.52, samples=61 iops : min= 1, max= 31, avg=12.02, stdev= 5.28, samples=61 lat (usec) : 50=1.43%, 100=6.38%, 250=0.78%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=3.52%, 4=2.73%, 10=9.77%, 20=10.68%, 50=31.38% lat (msec) : 100=25.13%, 250=7.68% cpu : usr=0.08%, sys=5.83%, ctx=1521, 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=155312: Fri Apr 10 15:33:03 2026 read: IOPS=11, BW=186KiB/s (191kB/s)(5744KiB/30830msec) clat (usec): min=39, max=257338, avg=46014.05, stdev=35630.94 lat (usec): min=39, max=257339, avg=46015.52, stdev=35630.76 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 20841], | 30.00th=[ 28181], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 50070], | 70.00th=[ 58459], 80.00th=[ 67634], 90.00th=[ 88605], 95.00th=[105382], | 99.00th=[185598], 99.50th=[210764], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 21, max= 383, per=25.36%, avg=190.93, stdev=68.52, samples=59 iops : min= 1, max= 23, avg=11.19, stdev= 4.30, samples=59 write: IOPS=13, BW=212KiB/s (217kB/s)(6544KiB/30830msec); 0 zone resets clat (usec): min=1502, max=260283, avg=34048.31, stdev=37614.76 lat (usec): min=1505, max=260285, avg=34087.18, stdev=37646.40 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1844], 10.00th=[ 2671], 20.00th=[ 5211], | 30.00th=[ 8356], 40.00th=[ 12780], 50.00th=[ 19530], 60.00th=[ 29754], | 70.00th=[ 39584], 80.00th=[ 62653], 90.00th=[ 86508], 95.00th=[110625], | 99.00th=[154141], 99.50th=[173016], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 43, max= 413, per=26.96%, avg=213.50, stdev=87.84, samples=60 iops : min= 2, max= 25, avg=12.60, stdev= 5.56, samples=60 lat (usec) : 50=0.52%, 100=5.99%, 250=0.39%, 500=0.26%, 750=0.13% lat (msec) : 2=4.43%, 4=3.65%, 10=10.55%, 20=10.16%, 50=31.90% lat (msec) : 100=25.78%, 250=5.99%, 500=0.26% cpu : usr=0.09%, sys=5.98%, ctx=1527, 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=155313: Fri Apr 10 15:33:03 2026 read: IOPS=12, BW=197KiB/s (202kB/s)(6256KiB/31792msec) clat (usec): min=35, max=254402, avg=43414.46, stdev=36623.42 lat (usec): min=36, max=254404, avg=43452.17, stdev=36620.45 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 16581], | 30.00th=[ 25560], 40.00th=[ 31851], 50.00th=[ 36963], 60.00th=[ 45876], | 70.00th=[ 54789], 80.00th=[ 64226], 90.00th=[ 81265], 95.00th=[107480], | 99.00th=[168821], 99.50th=[244319], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 29, max= 640, per=26.30%, avg=198.02, stdev=97.09, samples=62 iops : min= 1, max= 40, avg=11.61, stdev= 6.15, samples=62 write: IOPS=11, BW=190KiB/s (194kB/s)(6032KiB/31792msec); 0 zone resets clat (usec): min=1379, max=319591, avg=38584.09, stdev=42916.51 lat (usec): min=1380, max=319593, avg=38591.41, stdev=42920.18 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1827], 10.00th=[ 2376], 20.00th=[ 6259], | 30.00th=[ 9372], 40.00th=[ 14615], 50.00th=[ 24249], 60.00th=[ 34866], | 70.00th=[ 46400], 80.00th=[ 65274], 90.00th=[100140], 95.00th=[120062], | 99.00th=[183501], 99.50th=[267387], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 31, max= 378, per=23.87%, avg=189.08, stdev=77.38, samples=62 iops : min= 1, max= 23, avg=11.05, stdev= 4.91, samples=62 lat (usec) : 50=1.69%, 100=6.64%, 250=0.52%, 500=0.13% lat (msec) : 2=3.65%, 4=2.86%, 10=8.72%, 20=9.38%, 50=35.29% lat (msec) : 100=23.18%, 250=7.55%, 500=0.39% cpu : usr=0.09%, sys=5.61%, ctx=1438, 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=155314: Fri Apr 10 15:33:03 2026 read: IOPS=12, BW=194KiB/s (199kB/s)(6032KiB/31090msec) clat (usec): min=33, max=196724, avg=42567.07, stdev=32084.63 lat (usec): min=33, max=196725, avg=42568.27, stdev=32084.62 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 2442], | 30.00th=[ 28181], 40.00th=[ 33817], 50.00th=[ 40633], 60.00th=[ 47449], | 70.00th=[ 55313], 80.00th=[ 65799], 90.00th=[ 82314], 95.00th=[ 90702], | 99.00th=[135267], 99.50th=[170918], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 29, max= 349, per=25.45%, avg=191.63, stdev=75.95, samples=60 iops : min= 1, max= 21, avg=11.22, stdev= 4.81, samples=60 write: IOPS=12, BW=201KiB/s (206kB/s)(6256KiB/31090msec); 0 zone resets clat (usec): min=1387, max=567335, avg=37727.49, stdev=44982.60 lat (usec): min=1387, max=567350, avg=37729.70, stdev=44983.00 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1713], 10.00th=[ 2802], 20.00th=[ 6063], | 30.00th=[ 10290], 40.00th=[ 16188], 50.00th=[ 26084], 60.00th=[ 35390], | 70.00th=[ 45876], 80.00th=[ 64226], 90.00th=[ 87557], 95.00th=[108528], | 99.00th=[170918], 99.50th=[256902], 99.90th=[566232], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 29, max= 384, per=25.14%, avg=199.12, stdev=74.27, samples=60 iops : min= 1, max= 24, avg=11.70, stdev= 4.69, samples=60 lat (usec) : 50=1.04%, 100=7.03%, 250=0.91%, 750=0.26%, 1000=0.26% lat (msec) : 2=4.69%, 4=2.73%, 10=8.20%, 20=8.72%, 50=34.64% lat (msec) : 100=26.43%, 250=4.82%, 500=0.13%, 750=0.13% cpu : usr=0.10%, sys=6.06%, ctx=1513, 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=753KiB/s (771kB/s), 186KiB/s-197KiB/s (191kB/s-202kB/s), io=23.4MiB (24.5MB), run=30830-31792msec WRITE: bw=793KiB/s (812kB/s), 190KiB/s-212KiB/s (194kB/s-217kB/s), io=24.6MiB (25.8MB), run=30830-31792msec rand-rw: (groupid=0, jobs=1): err= 0: pid=155316: Fri Apr 10 15:33:45 2026 read: IOPS=5, BW=80.4KiB/s (82.3kB/s)(5920KiB/73636msec) clat (msec): min=7, max=689, avg=41.34, stdev=57.25 lat (msec): min=7, max=689, avg=41.35, stdev=57.25 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 48], 90.00th=[ 78], 95.00th=[ 123], | 99.00th=[ 334], 99.50th=[ 393], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 30, max= 406, per=28.23%, avg=91.46, stdev=63.53, samples=126 iops : min= 1, max= 25, avg= 5.01, stdev= 4.05, samples=126 write: IOPS=5, BW=86.5KiB/s (88.6kB/s)(6368KiB/73636msec); 0 zone resets clat (msec): min=34, max=590, avg=145.57, stdev=73.84 lat (msec): min=34, max=590, avg=145.58, stdev=73.84 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 73], 10.00th=[ 81], 20.00th=[ 91], | 30.00th=[ 101], 40.00th=[ 111], 50.00th=[ 126], 60.00th=[ 142], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 241], 95.00th=[ 313], | 99.00th=[ 393], 99.50th=[ 426], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 30, max= 160, per=25.91%, avg=88.35, stdev=39.61, samples=141 iops : min= 1, max= 10, avg= 4.79, stdev= 2.57, samples=141 lat (msec) : 10=1.30%, 20=15.63%, 50=22.01%, 100=20.83%, 250=34.64% lat (msec) : 500=5.34%, 750=0.26% cpu : usr=0.03%, sys=1.32%, ctx=1467, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=155317: Fri Apr 10 15:33:45 2026 read: IOPS=4, BW=77.7KiB/s (79.6kB/s)(5744KiB/73894msec) clat (msec): min=6, max=317, avg=39.10, stdev=41.09 lat (msec): min=6, max=317, avg=39.10, stdev=41.09 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 82], 95.00th=[ 134], | 99.00th=[ 222], 99.50th=[ 253], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 27, max= 313, per=29.84%, avg=96.67, stdev=65.44, samples=116 iops : min= 1, max= 19, avg= 5.33, stdev= 4.14, samples=116 write: IOPS=5, BW=88.6KiB/s (90.7kB/s)(6544KiB/73894msec); 0 zone resets clat (msec): min=36, max=700, avg=146.04, stdev=79.42 lat (msec): min=36, max=700, avg=146.04, stdev=79.42 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 66], 10.00th=[ 77], 20.00th=[ 90], | 30.00th=[ 100], 40.00th=[ 112], 50.00th=[ 127], 60.00th=[ 142], | 70.00th=[ 165], 80.00th=[ 188], 90.00th=[ 243], 95.00th=[ 309], | 99.00th=[ 414], 99.50th=[ 451], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 30, max= 189, per=26.30%, avg=89.69, stdev=40.80, samples=143 iops : min= 1, max= 11, avg= 4.88, stdev= 2.66, samples=143 lat (msec) : 10=1.04%, 20=15.10%, 50=22.66%, 100=20.70%, 250=35.42% lat (msec) : 500=4.82%, 750=0.26% cpu : usr=0.02%, sys=1.28%, ctx=1404, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=155318: Fri Apr 10 15:33:45 2026 read: IOPS=5, BW=87.6KiB/s (89.7kB/s)(6256KiB/71426msec) clat (msec): min=7, max=380, avg=37.73, stdev=41.02 lat (msec): min=7, max=380, avg=37.73, stdev=41.02 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 44], 90.00th=[ 83], 95.00th=[ 123], | 99.00th=[ 211], 99.50th=[ 245], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 30, max= 318, per=30.53%, avg=98.90, stdev=68.53, samples=125 iops : min= 1, max= 19, avg= 5.46, stdev= 4.39, samples=125 write: IOPS=5, BW=84.5KiB/s (86.5kB/s)(6032KiB/71426msec); 0 zone resets clat (msec): min=50, max=699, avg=149.24, stdev=79.44 lat (msec): min=50, max=699, avg=149.24, stdev=79.44 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 78], 20.00th=[ 92], | 30.00th=[ 107], 40.00th=[ 118], 50.00th=[ 131], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 190], 90.00th=[ 249], 95.00th=[ 313], | 99.00th=[ 451], 99.50th=[ 502], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 27, max= 160, per=25.28%, avg=86.22, stdev=37.98, samples=137 iops : min= 1, max= 10, avg= 4.66, stdev= 2.50, samples=137 lat (msec) : 10=2.08%, 20=16.15%, 50=23.44%, 100=17.58%, 250=35.81% lat (msec) : 500=4.69%, 750=0.26% cpu : usr=0.03%, sys=1.37%, ctx=1370, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=155319: Fri Apr 10 15:33:45 2026 read: IOPS=5, BW=82.6KiB/s (84.6kB/s)(6032KiB/73010msec) clat (msec): min=7, max=318, avg=39.67, stdev=41.07 lat (msec): min=7, max=318, avg=39.68, stdev=41.07 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 52], 90.00th=[ 93], 95.00th=[ 129], | 99.00th=[ 236], 99.50th=[ 279], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 30, max= 256, per=29.62%, avg=95.96, stdev=57.81, samples=123 iops : min= 1, max= 16, avg= 5.28, stdev= 3.71, samples=123 write: IOPS=5, BW=85.7KiB/s (87.7kB/s)(6256KiB/73010msec); 0 zone resets clat (msec): min=51, max=701, avg=147.75, stdev=74.23 lat (msec): min=51, max=701, avg=147.76, stdev=74.23 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 74], 10.00th=[ 83], 20.00th=[ 94], | 30.00th=[ 106], 40.00th=[ 116], 50.00th=[ 127], 60.00th=[ 140], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 251], 95.00th=[ 296], | 99.00th=[ 422], 99.50th=[ 506], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 28, max= 160, per=25.20%, avg=85.94, stdev=39.89, samples=143 iops : min= 1, max= 10, avg= 4.64, stdev= 2.60, samples=143 lat (msec) : 10=1.17%, 20=16.02%, 50=21.74%, 100=18.49%, 250=37.24% lat (msec) : 500=5.08%, 750=0.26% cpu : usr=0.05%, sys=1.30%, ctx=1362, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=324KiB/s (332kB/s), 77.7KiB/s-87.6KiB/s (79.6kB/s-89.7kB/s), io=23.4MiB (24.5MB), run=71426-73894msec WRITE: bw=341KiB/s (349kB/s), 84.5KiB/s-88.6KiB/s (86.5kB/s-90.7kB/s), io=24.6MiB (25.8MB), run=71426-73894msec 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=155341: Fri Apr 10 15:34:02 2026 read: IOPS=2, BW=2253KiB/s (2307kB/s)(7168KiB/3182msec) clat (msec): min=159, max=312, avg=224.43, stdev=57.36 lat (msec): min=159, max=312, avg=224.43, stdev=57.36 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 171], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 234], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 271], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 2007, max= 3992, per=71.61%, avg=2808.00, stdev=959.72, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1609KiB/s (1648kB/s)(5120KiB/3182msec); 0 zone resets clat (msec): min=224, max=391, avg=307.32, stdev=75.08 lat (msec): min=224, max=391, avg=307.40, stdev=75.07 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 226], | 30.00th=[ 243], 40.00th=[ 243], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 372], 80.00th=[ 372], 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= 2007, max= 3771, per=47.53%, avg=2608.67, stdev=1006.82, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 250=58.33%, 500=41.67% cpu : usr=0.00%, sys=14.80%, ctx=198, 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=155343: Fri Apr 10 15:34:02 2026 read: IOPS=0, BW=398KiB/s (407kB/s)(2048KiB/5147msec) clat (msec): min=230, max=232, avg=231.26, stdev= 1.60 lat (msec): min=230, max=232, avg=231.26, stdev= 1.60 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 230], | 30.00th=[ 230], 40.00th=[ 230], 50.00th=[ 230], 60.00th=[ 232], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 232], 95.00th=[ 232], | 99.00th=[ 232], 99.50th=[ 232], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 1434, max= 2035, per=44.24%, avg=1734.50, stdev=424.97, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1990KiB/s (2037kB/s)(10.0MiB/5147msec); 0 zone resets clat (msec): min=178, max=1186, avg=463.47, stdev=301.73 lat (msec): min=178, max=1187, avg=463.82, stdev=301.90 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 209], | 30.00th=[ 224], 40.00th=[ 317], 50.00th=[ 368], 60.00th=[ 414], | 70.00th=[ 477], 80.00th=[ 617], 90.00th=[ 651], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1885, max= 4087, per=46.74%, avg=2565.71, stdev=1009.05, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=8.45%, ctx=163, 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=155345: Fri Apr 10 15:34:02 2026 read: IOPS=1, BW=1176KiB/s (1205kB/s)(6144KiB/5223msec) clat (usec): min=501, max=349766, avg=229397.66, stdev=130224.86 lat (usec): min=502, max=349768, avg=229401.59, stdev=130227.21 clat percentiles (usec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[162530], | 30.00th=[162530], 40.00th=[250610], 50.00th=[250610], 60.00th=[283116], | 70.00th=[329253], 80.00th=[329253], 90.00th=[350225], 95.00th=[350225], | 99.00th=[350225], 99.50th=[350225], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 1906, max= 4096, per=64.35%, avg=2523.25, stdev=1050.56, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 write: IOPS=1, BW=1176KiB/s (1205kB/s)(6144KiB/5223msec); 0 zone resets clat (msec): min=401, max=1074, avg=611.47, stdev=250.15 lat (msec): min=401, max=1074, avg=611.71, stdev=250.23 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 510], | 70.00th=[ 718], 80.00th=[ 718], 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= 1477, max= 2048, per=33.97%, avg=1864.60, stdev=227.09, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=8.33%, 500=50.00%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=9.65%, ctx=210, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=155346: Fri Apr 10 15:34:02 2026 read: IOPS=1, BW=1162KiB/s (1190kB/s)(5120KiB/4406msec) clat (msec): min=216, max=405, avg=270.37, stdev=77.77 lat (msec): min=216, max=405, avg=270.37, stdev=77.77 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 253], 60.00th=[ 253], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 1906, max= 4071, per=68.22%, avg=2675.00, stdev=1211.05, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1627KiB/s (1666kB/s)(7168KiB/4406msec); 0 zone resets clat (msec): min=249, max=601, avg=393.15, stdev=131.82 lat (msec): min=249, max=602, avg=393.25, stdev=131.83 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 275], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 418], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 489], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1635, max= 4087, per=49.21%, avg=2701.00, stdev=1226.98, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=25.00%, 500=66.67%, 750=8.33% cpu : usr=0.00%, sys=12.55%, ctx=241, 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=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=3921KiB/s (4015kB/s), 398KiB/s-2253KiB/s (407kB/s-2307kB/s), io=20.0MiB (20.0MB), run=3182-5223msec WRITE: bw=5490KiB/s (5621kB/s), 1176KiB/s-1990KiB/s (1205kB/s-2037kB/s), io=28.0MiB (29.4MB), run=3182-5223msec rand-rw: (groupid=0, jobs=1): err= 0: pid=155342: Fri Apr 10 15:34:03 2026 read: IOPS=1, BW=1621KiB/s (1660kB/s)(7168KiB/4422msec) clat (msec): min=78, max=300, avg=222.73, stdev=75.71 lat (msec): min=78, max=300, avg=222.74, stdev=75.71 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 178], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 228], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 284], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 1595, max= 3923, per=62.60%, avg=2288.00, stdev=928.63, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1158KiB/s (1186kB/s)(5120KiB/4422msec); 0 zone resets clat (msec): min=334, max=842, avg=510.38, stdev=193.64 lat (msec): min=334, max=842, avg=510.45, stdev=193.64 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 481], 80.00th=[ 481], 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= 1973, max= 2039, per=39.10%, avg=2000.60, stdev=27.43, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=58.33%, 1000=8.33% cpu : usr=0.00%, sys=5.50%, ctx=97, 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=155344: Fri Apr 10 15:34:03 2026 read: IOPS=0, BW=368KiB/s (377kB/s)(2048KiB/5564msec) clat (msec): min=156, max=531, avg=344.09, stdev=265.16 lat (msec): min=156, max=531, avg=344.09, stdev=265.16 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 1521, max= 1973, per=47.80%, avg=1747.00, stdev=319.61, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1840KiB/s (1885kB/s)(10.0MiB/5564msec); 0 zone resets clat (msec): min=167, max=941, avg=453.52, stdev=248.48 lat (msec): min=167, max=944, avg=453.88, stdev=249.08 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 247], | 30.00th=[ 275], 40.00th=[ 292], 50.00th=[ 376], 60.00th=[ 418], | 70.00th=[ 426], 80.00th=[ 634], 90.00th=[ 760], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1984, max= 4071, per=52.24%, avg=2673.17, stdev=1029.34, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=25.00%, 500=41.67%, 750=16.67%, 1000=16.67% cpu : usr=0.04%, sys=4.37%, ctx=122, 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=155347: Fri Apr 10 15:34:03 2026 read: IOPS=1, BW=1121KiB/s (1148kB/s)(6144KiB/5479msec) clat (msec): min=172, max=413, avg=310.50, stdev=94.26 lat (msec): min=172, max=413, avg=310.50, stdev=94.26 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 355], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 1965, max= 2039, per=54.97%, avg=2009.20, stdev=31.83, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1121KiB/s (1148kB/s)(6144KiB/5479msec); 0 zone resets clat (msec): min=204, max=903, avg=591.74, stdev=273.84 lat (msec): min=205, max=915, avg=594.10, stdev=276.35 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 684], | 70.00th=[ 860], 80.00th=[ 860], 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= 1973, max= 3056, per=44.13%, avg=2258.00, stdev=532.36, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=3.12%, ctx=102, 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=155348: Fri Apr 10 15:34:03 2026 read: IOPS=0, BW=914KiB/s (936kB/s)(5120KiB/5603msec) clat (msec): min=81, max=539, avg=272.49, stdev=208.70 lat (msec): min=81, max=539, avg=272.49, stdev=208.70 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 82], | 30.00th=[ 95], 40.00th=[ 95], 50.00th=[ 203], 60.00th=[ 203], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1973, max= 6107, per=100.00%, avg=4040.00, stdev=2923.18, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1279KiB/s (1310kB/s)(7168KiB/5603msec); 0 zone resets clat (msec): min=138, max=1623, avg=548.26, stdev=511.40 lat (msec): min=138, max=1623, avg=548.34, stdev=511.41 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 192], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 485], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 651], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 1961, max= 2039, per=39.22%, avg=2006.80, stdev=31.80, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=3.27%, ctx=91, 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=3655KiB/s (3743kB/s), 368KiB/s-1621KiB/s (377kB/s-1660kB/s), io=20.0MiB (20.0MB), run=4422-5603msec WRITE: bw=5117KiB/s (5240kB/s), 1121KiB/s-1840KiB/s (1148kB/s-1885kB/s), io=28.0MiB (29.4MB), run=4422-5603msec 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=155354: Fri Apr 10 15:34:17 2026 read: IOPS=1, BW=6678KiB/s (6839kB/s)(12.0MiB/1840msec) clat (msec): min=309, max=1133, avg=601.97, stdev=460.85 lat (msec): min=309, max=1133, avg=601.98, stdev=460.85 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 6617, max= 8159, per=100.00%, avg=7388.00, stdev=1090.36, 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=6.42%, ctx=64, 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=155355: Fri Apr 10 15:34:17 2026 read: IOPS=0, BW=1499KiB/s (1535kB/s)(4096KiB/2733msec) clat (nsec): min=445868k, max=445868k, avg=445867930.00, stdev= 0.00 lat (nsec): min=445870k, max=445870k, avg=445870373.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] 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=2997KiB/s (3069kB/s)(8192KiB/2733msec); 0 zone resets clat (msec): min=899, max=1204, avg=1052.08, stdev=215.98 lat (msec): min=901, max=1205, avg=1053.18, stdev=214.89 clat percentiles (msec): | 1.00th=[ 902], 5.00th=[ 902], 10.00th=[ 902], 20.00th=[ 902], | 30.00th=[ 902], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 1200], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7892, max= 7892, per=72.52%, avg=7892.00, 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=4.61%, ctx=75, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=155356: Fri Apr 10 15:34:17 2026 write: IOPS=0, BW=4081KiB/s (4179kB/s)(12.0MiB/3011msec); 0 zone resets clat (msec): min=721, max=1194, avg=905.48, stdev=253.38 lat (msec): min=722, max=1200, avg=907.78, stdev=256.40 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7892, max= 8110, per=73.53%, avg=8001.00, stdev=154.15, 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=10.20%, ctx=99, 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=155357: Fri Apr 10 15:34:17 2026 write: IOPS=1, BW=5560KiB/s (5694kB/s)(12.0MiB/2210msec); 0 zone resets clat (msec): min=412, max=1144, avg=663.85, stdev=416.12 lat (msec): min=412, max=1144, avg=664.14, stdev=416.16 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min=16318, max=16318, per=100.00%, avg=16318.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.98%, ctx=57, 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=5995KiB/s (6139kB/s), 1499KiB/s-6678KiB/s (1535kB/s-6839kB/s), io=16.0MiB (16.8MB), run=1840-2733msec WRITE: bw=10.6MiB/s (11.1MB/s), 2997KiB/s-5560KiB/s (3069kB/s-5694kB/s), io=32.0MiB (33.6MB), run=2210-3011msec rand-rw: (groupid=0, jobs=1): err= 0: pid=155359: Fri Apr 10 15:34:18 2026 read: IOPS=1, BW=5088KiB/s (5210kB/s)(12.0MiB/2415msec) clat (msec): min=708, max=844, avg=758.39, stdev=74.68 lat (msec): min=708, max=844, avg=758.39, stdev=74.68 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 844], 80.00th=[ 844], 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= 8047, max= 8143, per=100.00%, avg=8095.00, stdev=67.88, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=13.96%, ctx=390, 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=155360: Fri Apr 10 15:34:18 2026 read: IOPS=0, BW=1382KiB/s (1416kB/s)(4096KiB/2963msec) clat (nsec): min=768334k, max=768334k, avg=768334440.00, stdev= 0.00 lat (nsec): min=768337k, max=768337k, avg=768336717.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] 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=2765KiB/s (2831kB/s)(8192KiB/2963msec); 0 zone resets clat (msec): min=910, max=1204, avg=1057.24, stdev=207.63 lat (msec): min=910, max=1204, avg=1057.63, stdev=207.71 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 1200], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8047, max= 8047, per=77.61%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=7.33%, ctx=171, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=155361: Fri Apr 10 15:34:18 2026 write: IOPS=0, BW=3889KiB/s (3982kB/s)(12.0MiB/3160msec); 0 zone resets clat (msec): min=407, max=1647, avg=1020.30, stdev=620.39 lat (msec): min=407, max=1648, avg=1020.76, stdev=620.40 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 8078, max= 8126, per=78.14%, avg=8102.00, stdev=33.94, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.06%, sys=3.70%, ctx=74, 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=155362: Fri Apr 10 15:34:18 2026 write: IOPS=1, BW=5692KiB/s (5828kB/s)(12.0MiB/2159msec); 0 zone resets clat (msec): min=470, max=1068, avg=701.76, stdev=321.21 lat (msec): min=471, max=1069, avg=702.30, stdev=321.60 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 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=16286, max=16286, per=100.00%, avg=16286.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.30%, ctx=45, 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=5530KiB/s (5662kB/s), 1382KiB/s-5088KiB/s (1416kB/s-5210kB/s), io=16.0MiB (16.8MB), run=2415-2963msec WRITE: bw=10.1MiB/s (10.6MB/s), 2765KiB/s-5692KiB/s (2831kB/s-5828kB/s), io=32.0MiB (33.6MB), run=2159-3160msec