== sanity test 398b: DIO and buffer IO race ============== 15:37:08 (1788205028) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.79353 s, 8.7 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=179573: Mon Aug 31 15:39:33 2026 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(5992KiB/126735msec) clat (usec): min=35, max=797388, avg=45772.83, stdev=34822.80 lat (usec): min=35, max=797389, avg=45774.95, stdev=34822.85 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 1012], 10.00th=[ 16188], 20.00th=[ 22676], | 30.00th=[ 28443], 40.00th=[ 33424], 50.00th=[ 39584], 60.00th=[ 46924], | 70.00th=[ 54789], 80.00th=[ 65274], 90.00th=[ 84411], 95.00th=[100140], | 99.00th=[145753], 99.50th=[164627], 99.90th=[204473], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 103, per=24.85%, avg=46.71, stdev=18.65, samples=250 iops : min= 1, max= 25, avg=11.03, stdev= 4.69, samples=250 write: IOPS=12, BW=49.7KiB/s (50.9kB/s)(6296KiB/126735msec); 0 zone resets clat (usec): min=977, max=324370, avg=36806.69, stdev=38749.91 lat (usec): min=978, max=324372, avg=36810.72, stdev=38749.02 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1188], 10.00th=[ 1483], 20.00th=[ 3556], | 30.00th=[ 7439], 40.00th=[ 16450], 50.00th=[ 26870], 60.00th=[ 35914], | 70.00th=[ 47449], 80.00th=[ 64226], 90.00th=[ 89654], 95.00th=[110625], | 99.00th=[164627], 99.50th=[191890], 99.90th=[270533], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 7, max= 152, per=25.02%, avg=49.30, stdev=21.79, samples=249 iops : min= 1, max= 38, avg=11.67, stdev= 5.52, samples=249 lat (usec) : 50=0.20%, 100=1.99%, 250=0.13%, 500=0.10%, 1000=0.03% lat (msec) : 2=6.97%, 4=4.23%, 10=6.61%, 20=9.41%, 50=38.57% lat (msec) : 100=25.46%, 250=6.22%, 500=0.07%, 1000=0.03% cpu : usr=0.07%, sys=4.64%, ctx=6403, 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=179574: Mon Aug 31 15:39:33 2026 read: IOPS=11, BW=47.5KiB/s (48.6kB/s)(5940KiB/125177msec) clat (usec): min=41, max=1068.8k, avg=47435.90, stdev=40427.12 lat (usec): min=42, max=1068.8k, avg=47436.91, stdev=40427.17 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 9896], 10.00th=[ 17171], | 20.00th=[ 22938], 30.00th=[ 29492], 40.00th=[ 34866], | 50.00th=[ 41157], 60.00th=[ 47973], 70.00th=[ 56886], | 80.00th=[ 67634], 90.00th=[ 83362], 95.00th=[ 100140], | 99.00th=[ 152044], 99.50th=[ 170918], 99.90th=[ 299893], | 99.95th=[1069548], 99.99th=[1069548] bw ( KiB/s): min= 7, max= 103, per=25.16%, avg=47.30, stdev=18.85, samples=245 iops : min= 1, max= 25, avg=11.17, stdev= 4.77, samples=245 write: IOPS=12, BW=50.7KiB/s (51.9kB/s)(6348KiB/125177msec); 0 zone resets clat (usec): min=903, max=222578, avg=34324.68, stdev=35931.82 lat (usec): min=904, max=222579, avg=34339.01, stdev=35925.09 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1156], 10.00th=[ 1336], 20.00th=[ 3097], | 30.00th=[ 6652], 40.00th=[ 15139], 50.00th=[ 25035], 60.00th=[ 33424], | 70.00th=[ 43254], 80.00th=[ 60031], 90.00th=[ 85459], 95.00th=[104334], | 99.00th=[154141], 99.50th=[183501], 99.90th=[221250], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 7, max= 111, per=25.70%, avg=50.63, stdev=21.49, samples=245 iops : min= 1, max= 27, avg=12.00, stdev= 5.39, samples=245 lat (usec) : 50=0.20%, 100=1.82%, 250=0.07%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=7.13%, 4=5.01%, 10=6.45%, 20=9.15%, 50=38.64% lat (msec) : 100=25.81%, 250=5.44%, 500=0.03%, 2000=0.03% cpu : usr=0.06%, sys=4.69%, ctx=6195, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179575: Mon Aug 31 15:39:33 2026 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(6028KiB/127519msec) clat (usec): min=36, max=297761, avg=46581.19, stdev=31134.41 lat (usec): min=37, max=297762, avg=46590.96, stdev=31133.73 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 8979], 10.00th=[ 17171], 20.00th=[ 22938], | 30.00th=[ 27919], 40.00th=[ 33162], 50.00th=[ 40633], 60.00th=[ 47449], | 70.00th=[ 56886], 80.00th=[ 66323], 90.00th=[ 83362], 95.00th=[100140], | 99.00th=[158335], 99.50th=[175113], 99.90th=[244319], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 7, max= 103, per=24.75%, avg=46.53, stdev=17.70, samples=251 iops : min= 1, max= 25, avg=10.98, stdev= 4.47, samples=251 write: IOPS=12, BW=49.1KiB/s (50.3kB/s)(6260KiB/127519msec); 0 zone resets clat (usec): min=952, max=773155, avg=36514.10, stdev=41320.51 lat (usec): min=953, max=773158, avg=36516.82, stdev=41319.99 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1172], 10.00th=[ 1418], 20.00th=[ 3261], | 30.00th=[ 7308], 40.00th=[ 17433], 50.00th=[ 27132], 60.00th=[ 36439], | 70.00th=[ 46924], 80.00th=[ 63177], 90.00th=[ 87557], 95.00th=[105382], | 99.00th=[158335], 99.50th=[212861], 99.90th=[299893], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 7, max= 111, per=24.53%, avg=48.31, stdev=19.88, samples=251 iops : min= 1, max= 27, avg=11.43, stdev= 4.99, samples=251 lat (usec) : 50=0.33%, 100=1.63%, 250=0.20%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=6.61%, 4=4.49%, 10=6.38%, 20=8.95%, 50=39.42% lat (msec) : 100=26.04%, 250=5.66%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=4.55%, ctx=6377, 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=179576: Mon Aug 31 15:39:33 2026 read: IOPS=11, BW=47.8KiB/s (48.0kB/s)(6052KiB/126553msec) clat (usec): min=37, max=307017, avg=44929.78, stdev=29232.42 lat (usec): min=37, max=307018, avg=44931.76, stdev=29233.21 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 627], 10.00th=[ 15795], 20.00th=[ 22414], | 30.00th=[ 28181], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 46924], | 70.00th=[ 54264], 80.00th=[ 65274], 90.00th=[ 80217], 95.00th=[ 95945], | 99.00th=[143655], 99.50th=[164627], 99.90th=[238027], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 7, max= 104, per=25.40%, avg=47.75, stdev=17.64, samples=246 iops : min= 1, max= 26, avg=11.29, stdev= 4.46, samples=246 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(6236KiB/126553msec); 0 zone resets clat (usec): min=825, max=1068.8k, avg=37433.90, stdev=45208.18 lat (usec): min=826, max=1068.8k, avg=37435.52, stdev=45208.31 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1532], | 20.00th=[ 3621], 30.00th=[ 7767], 40.00th=[ 18744], | 50.00th=[ 27395], 60.00th=[ 35914], 70.00th=[ 47973], | 80.00th=[ 64750], 90.00th=[ 89654], 95.00th=[ 108528], | 99.00th=[ 145753], 99.50th=[ 166724], 99.90th=[ 400557], | 99.95th=[1069548], 99.99th=[1069548] bw ( KiB/s): min= 7, max= 95, per=25.01%, avg=49.26, stdev=19.80, samples=246 iops : min= 1, max= 23, avg=11.65, stdev= 5.00, samples=246 lat (usec) : 50=0.26%, 100=1.89%, 250=0.23%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.16% lat (msec) : 2=6.38%, 4=4.56%, 10=5.70%, 20=9.51%, 50=39.06% lat (msec) : 100=26.86%, 250=5.18%, 500=0.07%, 2000=0.03% cpu : usr=0.06%, sys=4.69%, ctx=6418, majf=0, minf=18 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 (193kB/s), 47.3KiB/s-47.8KiB/s (48.4kB/s-48.0kB/s), io=23.4MiB (24.6MB), run=125177-127519msec WRITE: bw=197KiB/s (202kB/s), 49.1KiB/s-50.7KiB/s (50.3kB/s-51.9kB/s), io=24.6MiB (25.7MB), run=125177-127519msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179568: Mon Aug 31 15:40:10 2026 read: IOPS=9, BW=36.6KiB/s (37.5kB/s)(5992KiB/163546msec) clat (msec): min=5, max=840, avg=41.95, stdev=45.23 lat (msec): min=5, max=840, avg=41.95, stdev=45.23 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 63], 90.00th=[ 95], 95.00th=[ 126], | 99.00th=[ 197], 99.50th=[ 243], 99.90th=[ 330], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 167, per=25.12%, avg=36.67, stdev=27.89, samples=316 iops : min= 1, max= 41, avg= 8.50, stdev= 6.98, samples=316 write: IOPS=9, BW=38.5KiB/s (39.4kB/s)(6296KiB/163546msec); 0 zone resets clat (msec): min=10, max=402, avg=63.69, stdev=47.90 lat (msec): min=10, max=402, avg=63.70, stdev=47.90 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 60], | 70.00th=[ 74], 80.00th=[ 95], 90.00th=[ 126], 95.00th=[ 155], | 99.00th=[ 236], 99.50th=[ 275], 99.90th=[ 384], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 159, per=24.95%, avg=38.18, stdev=26.81, samples=319 iops : min= 1, max= 39, avg= 8.88, stdev= 6.71, samples=319 lat (msec) : 10=3.78%, 20=18.36%, 50=41.02%, 100=23.05%, 250=13.25% lat (msec) : 500=0.52%, 1000=0.03% cpu : usr=0.04%, sys=1.69%, ctx=4851, 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=179569: Mon Aug 31 15:40:10 2026 read: IOPS=9, BW=36.3KiB/s (37.1kB/s)(5940KiB/163794msec) clat (msec): min=5, max=1068, avg=43.97, stdev=48.94 lat (msec): min=5, max=1068, avg=43.98, stdev=48.94 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 65], 90.00th=[ 102], 95.00th=[ 133], | 99.00th=[ 194], 99.50th=[ 243], 99.90th=[ 305], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 151, per=25.14%, avg=36.71, stdev=27.80, samples=315 iops : min= 1, max= 37, avg= 8.51, stdev= 6.96, samples=315 write: IOPS=9, BW=38.8KiB/s (39.7kB/s)(6348KiB/163794msec); 0 zone resets clat (msec): min=9, max=357, avg=61.79, stdev=44.17 lat (msec): min=9, max=357, avg=61.79, stdev=44.17 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 33], 40.00th=[ 40], 50.00th=[ 48], 60.00th=[ 59], | 70.00th=[ 75], 80.00th=[ 94], 90.00th=[ 121], 95.00th=[ 146], | 99.00th=[ 213], 99.50th=[ 239], 99.90th=[ 305], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 207, per=25.35%, avg=38.79, stdev=28.43, samples=319 iops : min= 1, max= 51, avg= 9.03, stdev= 7.11, samples=319 lat (msec) : 10=3.68%, 20=17.38%, 50=41.73%, 100=22.95%, 250=13.90% lat (msec) : 500=0.33%, 2000=0.03% cpu : usr=0.05%, sys=1.64%, ctx=4783, 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=179570: Mon Aug 31 15:40:10 2026 read: IOPS=9, BW=36.9KiB/s (37.8kB/s)(6028KiB/163204msec) clat (msec): min=4, max=336, avg=42.50, stdev=40.33 lat (msec): min=4, max=336, avg=42.50, stdev=40.33 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 62], 90.00th=[ 96], 95.00th=[ 129], | 99.00th=[ 192], 99.50th=[ 226], 99.90th=[ 275], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 7, max= 143, per=25.40%, avg=37.08, stdev=26.53, samples=314 iops : min= 1, max= 35, avg= 8.61, stdev= 6.65, samples=314 write: IOPS=9, BW=38.4KiB/s (39.3kB/s)(6260KiB/163204msec); 0 zone resets clat (msec): min=10, max=1092, avg=63.07, stdev=51.84 lat (msec): min=10, max=1092, avg=63.07, stdev=51.84 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 58], | 70.00th=[ 75], 80.00th=[ 96], 90.00th=[ 126], 95.00th=[ 148], | 99.00th=[ 215], 99.50th=[ 259], 99.90th=[ 368], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 150, per=24.92%, avg=38.13, stdev=27.07, samples=317 iops : min= 1, max= 37, avg= 8.86, stdev= 6.78, samples=317 lat (msec) : 10=3.65%, 20=16.86%, 50=42.81%, 100=22.59%, 250=13.70% lat (msec) : 500=0.36%, 2000=0.03% cpu : usr=0.06%, sys=1.68%, ctx=4711, 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=179571: Mon Aug 31 15:40:10 2026 read: IOPS=9, BW=37.1KiB/s (37.0kB/s)(6052KiB/163255msec) clat (msec): min=5, max=331, avg=41.86, stdev=38.75 lat (msec): min=5, max=331, avg=41.87, stdev=38.75 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 63], 90.00th=[ 94], 95.00th=[ 127], | 99.00th=[ 178], 99.50th=[ 197], 99.90th=[ 321], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 151, per=25.53%, avg=37.28, stdev=26.49, samples=312 iops : min= 1, max= 37, avg= 8.65, stdev= 6.62, samples=312 write: IOPS=9, BW=38.2KiB/s (39.1kB/s)(6236KiB/163255msec); 0 zone resets clat (msec): min=8, max=1074, avg=63.80, stdev=53.46 lat (msec): min=8, max=1074, avg=63.81, stdev=53.46 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 59], | 70.00th=[ 75], 80.00th=[ 96], 90.00th=[ 125], 95.00th=[ 155], | 99.00th=[ 213], 99.50th=[ 288], 99.90th=[ 418], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 166, per=24.80%, avg=37.94, stdev=26.22, samples=317 iops : min= 1, max= 41, avg= 8.82, stdev= 6.57, samples=317 lat (msec) : 10=3.16%, 20=17.38%, 50=42.51%, 100=22.88%, 250=13.57% lat (msec) : 500=0.46%, 2000=0.03% cpu : usr=0.05%, sys=1.68%, ctx=4679, 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=147KiB/s (150kB/s), 36.3KiB/s-37.1KiB/s (37.1kB/s-37.0kB/s), io=23.4MiB (24.6MB), run=163204-163794msec WRITE: bw=153KiB/s (157kB/s), 38.2KiB/s-38.8KiB/s (39.1kB/s-39.7kB/s), io=24.6MiB (25.7MB), run=163204-163794msec 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=179623: Mon Aug 31 15:40:51 2026 read: IOPS=11, BW=190KiB/s (195kB/s)(5920KiB/31161msec) clat (usec): min=32, max=161616, avg=45305.35, stdev=30739.23 lat (usec): min=32, max=161617, avg=45306.87, stdev=30739.39 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 60], 10.00th=[ 174], 20.00th=[ 22414], | 30.00th=[ 28443], 40.00th=[ 32900], 50.00th=[ 42730], 60.00th=[ 49021], | 70.00th=[ 56361], 80.00th=[ 66323], 90.00th=[ 80217], 95.00th=[108528], | 99.00th=[149947], 99.50th=[160433], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 63, max= 510, per=25.29%, avg=189.69, stdev=80.03, samples=61 iops : min= 3, max= 31, avg=11.10, stdev= 5.04, samples=61 write: IOPS=12, BW=204KiB/s (209kB/s)(6368KiB/31161msec); 0 zone resets clat (usec): min=1365, max=169534, avg=36099.90, stdev=35498.81 lat (usec): min=1367, max=169537, avg=36106.91, stdev=35494.29 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1745], 10.00th=[ 2442], 20.00th=[ 5080], | 30.00th=[ 10290], 40.00th=[ 17695], 50.00th=[ 25297], 60.00th=[ 33817], | 70.00th=[ 45351], 80.00th=[ 63701], 90.00th=[ 90702], 95.00th=[108528], | 99.00th=[143655], 99.50th=[164627], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 31, max= 413, per=25.91%, avg=204.46, stdev=85.65, samples=61 iops : min= 1, max= 25, avg=12.02, stdev= 5.41, samples=61 lat (usec) : 50=0.65%, 100=3.52%, 250=0.65%, 1000=0.13% lat (msec) : 2=4.30%, 4=4.56%, 10=6.77%, 20=10.16%, 50=38.02% lat (msec) : 100=24.48%, 250=6.77% cpu : usr=0.06%, sys=5.04%, ctx=1627, 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=179624: Mon Aug 31 15:40:51 2026 read: IOPS=11, BW=181KiB/s (185kB/s)(5744KiB/31715msec) clat (usec): min=52, max=219518, avg=46182.63, stdev=33516.35 lat (usec): min=53, max=219519, avg=46184.29, stdev=33515.82 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 62], 10.00th=[ 88], 20.00th=[ 22676], | 30.00th=[ 28705], 40.00th=[ 33424], 50.00th=[ 40109], 60.00th=[ 46924], | 70.00th=[ 55837], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[112722], | 99.00th=[156238], 99.50th=[187696], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 31, max= 351, per=24.06%, avg=180.42, stdev=72.56, samples=62 iops : min= 1, max= 21, avg=10.48, stdev= 4.59, samples=62 write: IOPS=12, BW=206KiB/s (211kB/s)(6544KiB/31715msec); 0 zone resets clat (usec): min=1328, max=291893, avg=36837.19, stdev=37878.30 lat (usec): min=1330, max=291894, avg=36839.07, stdev=37878.33 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1778], 10.00th=[ 2573], 20.00th=[ 5080], | 30.00th=[ 8979], 40.00th=[ 16581], 50.00th=[ 25560], 60.00th=[ 36439], | 70.00th=[ 48497], 80.00th=[ 64226], 90.00th=[ 87557], 95.00th=[111674], | 99.00th=[143655], 99.50th=[187696], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 380, per=25.96%, avg=204.85, stdev=85.91, samples=62 iops : min= 1, max= 23, avg=12.05, stdev= 5.43, samples=62 lat (usec) : 100=4.82%, 250=0.26% lat (msec) : 2=4.04%, 4=4.17%, 10=9.51%, 20=8.20%, 50=36.85% lat (msec) : 100=25.26%, 250=6.77%, 500=0.13% cpu : usr=0.07%, sys=5.28%, ctx=1662, 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=179625: Mon Aug 31 15:40:51 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(6256KiB/31921msec) clat (usec): min=39, max=254777, avg=45032.20, stdev=32304.78 lat (usec): min=39, max=254778, avg=45039.33, stdev=32308.31 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 4490], 20.00th=[ 22152], | 30.00th=[ 28443], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 47449], | 70.00th=[ 54264], 80.00th=[ 66847], 90.00th=[ 82314], 95.00th=[ 96994], | 99.00th=[177210], 99.50th=[191890], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 63, max= 448, per=26.11%, avg=195.86, stdev=79.32, samples=63 iops : min= 3, max= 28, avg=11.48, stdev= 5.05, samples=63 write: IOPS=11, BW=189KiB/s (194kB/s)(6032KiB/31921msec); 0 zone resets clat (usec): min=1183, max=187903, avg=37783.03, stdev=36319.70 lat (usec): min=1185, max=187905, avg=37784.85, stdev=36319.76 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1827], 10.00th=[ 2704], 20.00th=[ 4817], | 30.00th=[ 9896], 40.00th=[ 16188], 50.00th=[ 28705], 60.00th=[ 39060], | 70.00th=[ 50594], 80.00th=[ 68682], 90.00th=[ 87557], 95.00th=[105382], | 99.00th=[149947], 99.50th=[181404], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 62, max= 351, per=23.84%, avg=188.08, stdev=69.10, samples=63 iops : min= 3, max= 21, avg=10.98, stdev= 4.37, samples=63 lat (usec) : 50=0.26%, 100=4.04%, 250=0.52%, 500=0.13% lat (msec) : 2=2.99%, 4=5.99%, 10=6.38%, 20=9.24%, 50=36.85% lat (msec) : 100=28.39%, 250=5.08%, 500=0.13% cpu : usr=0.05%, sys=5.00%, ctx=1689, 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=179626: Mon Aug 31 15:40:51 2026 read: IOPS=11, BW=189KiB/s (194kB/s)(6032KiB/31913msec) clat (usec): min=45, max=177276, avg=45902.05, stdev=32096.97 lat (usec): min=46, max=177277, avg=45903.01, stdev=32097.06 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 60], 10.00th=[ 85], 20.00th=[ 21890], | 30.00th=[ 29754], 40.00th=[ 35390], 50.00th=[ 42206], 60.00th=[ 48497], | 70.00th=[ 56886], 80.00th=[ 68682], 90.00th=[ 85459], 95.00th=[106431], | 99.00th=[141558], 99.50th=[175113], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 61, max= 382, per=25.53%, avg=191.50, stdev=74.37, samples=62 iops : min= 3, max= 23, avg=11.19, stdev= 4.71, samples=62 write: IOPS=12, BW=196KiB/s (201kB/s)(6256KiB/31913msec); 0 zone resets clat (usec): min=1384, max=196798, avg=37285.29, stdev=35142.68 lat (usec): min=1387, max=196801, avg=37288.41, stdev=35144.83 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1909], 10.00th=[ 3294], 20.00th=[ 6456], | 30.00th=[ 11338], 40.00th=[ 21365], 50.00th=[ 27657], 60.00th=[ 36963], | 70.00th=[ 47449], 80.00th=[ 62129], 90.00th=[ 82314], 95.00th=[110625], | 99.00th=[160433], 99.50th=[183501], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 31, max= 509, per=24.78%, avg=195.54, stdev=84.64, samples=63 iops : min= 1, max= 31, avg=11.46, stdev= 5.27, samples=63 lat (usec) : 50=0.13%, 100=5.34%, 250=0.78%, 500=0.13% lat (msec) : 2=2.60%, 4=3.52%, 10=8.20%, 20=7.29%, 50=39.19% lat (msec) : 100=26.56%, 250=6.25% cpu : usr=0.05%, sys=5.13%, ctx=1658, 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=750KiB/s (768kB/s), 181KiB/s-196KiB/s (185kB/s-201kB/s), io=23.4MiB (24.5MB), run=31161-31921msec WRITE: bw=789KiB/s (808kB/s), 189KiB/s-206KiB/s (194kB/s-211kB/s), io=24.6MiB (25.8MB), run=31161-31921msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179618: Mon Aug 31 15:41:03 2026 read: IOPS=8, BW=137KiB/s (140kB/s)(5920KiB/43313msec) clat (msec): min=6, max=389, avg=43.49, stdev=41.97 lat (msec): min=6, max=389, avg=43.49, stdev=41.97 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 34], | 70.00th=[ 45], 80.00th=[ 58], 90.00th=[ 95], 95.00th=[ 126], | 99.00th=[ 203], 99.50th=[ 239], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 31, max= 479, per=25.06%, avg=136.57, stdev=89.37, samples=84 iops : min= 1, max= 29, avg= 7.73, stdev= 5.67, samples=84 write: IOPS=9, BW=147KiB/s (151kB/s)(6368KiB/43313msec); 0 zone resets clat (msec): min=14, max=264, avg=68.27, stdev=46.53 lat (msec): min=14, max=264, avg=68.28, stdev=46.53 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 38], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 64], | 70.00th=[ 80], 80.00th=[ 100], 90.00th=[ 136], 95.00th=[ 165], | 99.00th=[ 222], 99.50th=[ 251], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 383, per=25.77%, avg=147.65, stdev=82.24, samples=84 iops : min= 1, max= 23, avg= 8.42, stdev= 5.21, samples=84 lat (msec) : 10=1.30%, 20=12.63%, 50=47.27%, 100=23.96%, 250=14.45% lat (msec) : 500=0.39% cpu : usr=0.07%, sys=1.70%, ctx=1141, 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=179619: Mon Aug 31 15:41:03 2026 read: IOPS=8, BW=131KiB/s (134kB/s)(5744KiB/43787msec) clat (msec): min=7, max=240, avg=44.75, stdev=38.71 lat (msec): min=7, max=240, avg=44.76, stdev=38.70 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 48], 80.00th=[ 62], 90.00th=[ 93], 95.00th=[ 127], | 99.00th=[ 205], 99.50th=[ 218], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 31, max= 504, per=24.76%, avg=134.96, stdev=90.55, samples=83 iops : min= 1, max= 31, avg= 7.63, stdev= 5.74, samples=83 write: IOPS=9, BW=149KiB/s (153kB/s)(6544KiB/43787msec); 0 zone resets clat (msec): min=14, max=256, avg=67.44, stdev=43.55 lat (msec): min=14, max=256, avg=67.44, stdev=43.55 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 64], | 70.00th=[ 79], 80.00th=[ 100], 90.00th=[ 128], 95.00th=[ 155], | 99.00th=[ 213], 99.50th=[ 220], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 416, per=26.54%, avg=152.07, stdev=83.78, samples=84 iops : min= 1, max= 26, avg= 8.70, stdev= 5.32, samples=84 lat (msec) : 10=1.95%, 20=10.29%, 50=45.96%, 100=27.34%, 250=14.32% lat (msec) : 500=0.13% cpu : usr=0.04%, sys=1.69%, ctx=1182, 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=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=179620: Mon Aug 31 15:41:03 2026 read: IOPS=8, BW=142KiB/s (146kB/s)(6256KiB/43929msec) clat (msec): min=6, max=370, avg=47.32, stdev=44.40 lat (msec): min=6, max=370, avg=47.32, stdev=44.41 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 48], 80.00th=[ 64], 90.00th=[ 107], 95.00th=[ 146], | 99.00th=[ 199], 99.50th=[ 239], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 30, max= 480, per=26.22%, avg=142.88, stdev=100.09, samples=85 iops : min= 1, max= 30, avg= 8.12, stdev= 6.38, samples=85 write: IOPS=8, BW=137KiB/s (141kB/s)(6032KiB/43929msec); 0 zone resets clat (msec): min=14, max=280, avg=67.09, stdev=46.38 lat (msec): min=14, max=280, avg=67.09, stdev=46.38 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 38], 40.00th=[ 45], 50.00th=[ 53], 60.00th=[ 64], | 70.00th=[ 75], 80.00th=[ 94], 90.00th=[ 125], 95.00th=[ 182], | 99.00th=[ 241], 99.50th=[ 262], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 410, per=24.04%, avg=137.75, stdev=80.10, samples=84 iops : min= 1, max= 25, avg= 7.80, stdev= 5.09, samples=84 lat (msec) : 10=1.30%, 20=14.06%, 50=44.40%, 100=26.17%, 250=13.67% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=1.61%, ctx=1180, 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=179621: Mon Aug 31 15:41:03 2026 read: IOPS=8, BW=139KiB/s (142kB/s)(6032KiB/43512msec) clat (msec): min=6, max=233, avg=45.63, stdev=38.01 lat (msec): min=6, max=233, avg=45.63, stdev=38.01 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 51], 80.00th=[ 68], 90.00th=[ 103], 95.00th=[ 126], | 99.00th=[ 180], 99.50th=[ 211], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 31, max= 473, per=25.42%, avg=138.55, stdev=86.32, samples=84 iops : min= 1, max= 29, avg= 7.86, stdev= 5.46, samples=84 write: IOPS=8, BW=144KiB/s (147kB/s)(6256KiB/43512msec); 0 zone resets clat (msec): min=12, max=309, avg=66.99, stdev=45.38 lat (msec): min=12, max=309, avg=66.99, stdev=45.39 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 44], 50.00th=[ 51], 60.00th=[ 64], | 70.00th=[ 75], 80.00th=[ 99], 90.00th=[ 127], 95.00th=[ 159], | 99.00th=[ 232], 99.50th=[ 251], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 31, max= 479, per=24.94%, avg=142.93, stdev=86.30, samples=85 iops : min= 1, max= 29, avg= 8.12, stdev= 5.48, samples=85 lat (msec) : 10=1.04%, 20=14.19%, 50=44.14%, 100=26.17%, 250=14.19% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=1.69%, ctx=1130, 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=545KiB/s (558kB/s), 131KiB/s-142KiB/s (134kB/s-146kB/s), io=23.4MiB (24.5MB), run=43313-43929msec WRITE: bw=574KiB/s (587kB/s), 137KiB/s-149KiB/s (141kB/s-153kB/s), io=24.6MiB (25.8MB), run=43313-43929msec 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=179643: Mon Aug 31 15:41:18 2026 read: IOPS=2, BW=2242KiB/s (2296kB/s)(7168KiB/3197msec) clat (usec): min=674, max=557316, avg=173123.62, stdev=187821.56 lat (usec): min=676, max=557317, avg=173125.05, stdev=187821.30 clat percentiles (usec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 1401], | 30.00th=[123208], 40.00th=[123208], 50.00th=[143655], 60.00th=[175113], | 70.00th=[175113], 80.00th=[210764], 90.00th=[557843], 95.00th=[557843], | 99.00th=[557843], 99.50th=[557843], 99.90th=[557843], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 1878, max= 4096, per=53.53%, avg=2857.00, stdev=1131.31, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=1, BW=1602KiB/s (1640kB/s)(5120KiB/3197msec); 0 zone resets clat (msec): min=234, max=515, avg=362.80, stdev=121.03 lat (msec): min=234, max=516, avg=363.16, stdev=121.50 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 234], | 30.00th=[ 268], 40.00th=[ 268], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 1762, max= 3835, per=32.86%, avg=2455.00, stdev=1195.12, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=41.67%, 500=25.00%, 750=16.67% cpu : usr=0.03%, sys=31.63%, ctx=454, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179644: Mon Aug 31 15:41:18 2026 read: IOPS=0, BW=534KiB/s (547kB/s)(2048KiB/3837msec) clat (usec): min=586, max=155887, avg=78237.00, stdev=109815.00 lat (usec): min=587, max=155890, avg=78238.97, stdev=109815.72 clat percentiles (usec): | 1.00th=[ 586], 5.00th=[ 586], 10.00th=[ 586], 20.00th=[ 586], | 30.00th=[ 586], 40.00th=[ 586], 50.00th=[ 586], 60.00th=[156238], | 70.00th=[156238], 80.00th=[156238], 90.00th=[156238], 95.00th=[156238], | 99.00th=[156238], 99.50th=[156238], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 1868, max= 1917, per=35.46%, avg=1892.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2669KiB/s (2733kB/s)(10.0MiB/3837msec); 0 zone resets clat (msec): min=112, max=847, avg=352.59, stdev=260.70 lat (msec): min=112, max=847, avg=352.67, stdev=260.68 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 144], | 30.00th=[ 167], 40.00th=[ 203], 50.00th=[ 245], 60.00th=[ 313], | 70.00th=[ 317], 80.00th=[ 388], 90.00th=[ 793], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1762, max= 6144, per=48.19%, avg=3600.40, stdev=2318.26, samples=5 iops : min= 1, max= 6, avg= 3.00, stdev= 2.35, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=25.00%, 1000=16.67% cpu : usr=0.03%, sys=32.06%, ctx=213, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179645: Mon Aug 31 15:41:18 2026 read: IOPS=1, BW=1924KiB/s (1970kB/s)(6144KiB/3194msec) clat (usec): min=776, max=300267, avg=87873.77, stdev=136258.91 lat (usec): min=777, max=300268, avg=87874.92, stdev=136258.49 clat percentiles (usec): | 1.00th=[ 775], 5.00th=[ 775], 10.00th=[ 775], 20.00th=[ 824], | 30.00th=[ 824], 40.00th=[ 1012], 50.00th=[ 1012], 60.00th=[ 3032], | 70.00th=[221250], 80.00th=[221250], 90.00th=[299893], 95.00th=[299893], | 99.00th=[299893], 99.50th=[299893], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 3537, max= 3835, per=69.07%, avg=3686.00, stdev=210.72, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1924KiB/s (1970kB/s)(6144KiB/3194msec); 0 zone resets clat (msec): min=214, max=701, avg=420.14, stdev=219.57 lat (msec): min=214, max=701, avg=420.20, stdev=219.56 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 384], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1762, max= 2048, per=25.40%, avg=1898.00, stdev=118.95, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 1000=16.67% lat (msec) : 2=8.33%, 4=8.33%, 250=25.00%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=29.44%, ctx=224, 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=179646: Mon Aug 31 15:41:18 2026 read: IOPS=1, BW=1870KiB/s (1915kB/s)(5120KiB/2738msec) clat (usec): min=504, max=224501, avg=152626.22, stdev=91812.94 lat (usec): min=504, max=224502, avg=152627.27, stdev=91813.10 clat percentiles (usec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[132645], 40.00th=[132645], 50.00th=[198181], 60.00th=[198181], | 70.00th=[206570], 80.00th=[206570], 90.00th=[225444], 95.00th=[225444], | 99.00th=[225444], 99.50th=[225444], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 1762, max= 5305, per=66.21%, avg=3533.50, stdev=2505.28, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2618KiB/s (2681kB/s)(7168KiB/2738msec); 0 zone resets clat (msec): min=146, max=375, avg=272.01, stdev=89.06 lat (msec): min=146, max=375, avg=272.09, stdev=89.06 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 192], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 253], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 368], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 1762, max= 4096, per=31.71%, avg=2369.25, stdev=1151.88, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=58.33%, 500=33.33% cpu : usr=0.00%, sys=36.50%, ctx=235, 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=5338KiB/s (5466kB/s), 534KiB/s-2242KiB/s (547kB/s-2296kB/s), io=20.0MiB (20.0MB), run=2738-3837msec WRITE: bw=7473KiB/s (7652kB/s), 1602KiB/s-2669KiB/s (1640kB/s-2733kB/s), io=28.0MiB (29.4MB), run=2738-3837msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179638: Mon Aug 31 15:41:18 2026 read: IOPS=2, BW=2917KiB/s (2987kB/s)(7168KiB/2457msec) clat (msec): min=57, max=281, avg=148.82, stdev=91.38 lat (msec): min=57, max=281, avg=148.82, stdev=91.38 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 64], | 30.00th=[ 82], 40.00th=[ 82], 50.00th=[ 125], 60.00th=[ 182], | 70.00th=[ 182], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 4096, max= 5785, per=96.78%, avg=4940.50, stdev=1194.30, samples=2 iops : min= 4, max= 5, avg= 4.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2084KiB/s (2134kB/s)(5120KiB/2457msec); 0 zone resets clat (msec): min=142, max=414, avg=274.71, stdev=126.03 lat (msec): min=142, max=414, avg=274.79, stdev=126.06 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 405], 80.00th=[ 405], 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= 2031, max= 4087, per=42.80%, avg=3059.00, stdev=1453.81, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (msec) : 100=25.00%, 250=41.67%, 500=33.33% cpu : usr=0.04%, sys=16.73%, ctx=169, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179639: Mon Aug 31 15:41:18 2026 read: IOPS=0, BW=546KiB/s (559kB/s)(2048KiB/3751msec) clat (msec): min=82, max=110, avg=96.56, stdev=20.33 lat (msec): min=82, max=110, avg=96.57, stdev=20.33 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 83], | 30.00th=[ 83], 40.00th=[ 83], 50.00th=[ 83], 60.00th=[ 111], | 70.00th=[ 111], 80.00th=[ 111], 90.00th=[ 111], 95.00th=[ 111], | 99.00th=[ 111], 99.50th=[ 111], 99.90th=[ 111], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 1790, max= 2043, per=37.54%, avg=1916.50, stdev=178.90, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2730KiB/s (2795kB/s)(10.0MiB/3751msec); 0 zone resets clat (msec): min=80, max=765, avg=344.67, stdev=208.24 lat (msec): min=80, max=765, avg=344.75, stdev=208.24 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 180], | 30.00th=[ 182], 40.00th=[ 243], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 334], 80.00th=[ 485], 90.00th=[ 584], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 1790, max= 4087, per=41.97%, avg=2999.83, stdev=1143.22, samples=6 iops : min= 1, max= 3, avg= 2.17, stdev= 0.98, samples=6 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.05%, sys=13.36%, ctx=117, 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=179641: Mon Aug 31 15:41:18 2026 read: IOPS=1, BW=1532KiB/s (1569kB/s)(6144KiB/4011msec) clat (msec): min=71, max=613, avg=280.19, stdev=224.54 lat (msec): min=71, max=613, avg=280.19, stdev=224.54 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 79], | 30.00th=[ 79], 40.00th=[ 180], 50.00th=[ 180], 60.00th=[ 247], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 4087, max= 4087, per=80.06%, avg=4087.00, stdev= 0.00, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1532KiB/s (1569kB/s)(6144KiB/4011msec); 0 zone resets clat (msec): min=77, max=857, avg=373.04, stdev=355.99 lat (msec): min=77, max=858, avg=373.14, stdev=356.02 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 102], | 30.00th=[ 102], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 232], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1984, max= 3631, per=35.73%, avg=2554.33, stdev=932.97, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=25.00%, 250=41.67%, 500=8.33%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=8.68%, ctx=181, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179642: Mon Aug 31 15:41:18 2026 read: IOPS=1, BW=1408KiB/s (1442kB/s)(5120KiB/3636msec) clat (msec): min=118, max=251, avg=166.34, stdev=54.64 lat (msec): min=118, max=251, avg=166.34, stdev=54.64 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 163], 60.00th=[ 163], | 70.00th=[ 180], 80.00th=[ 180], 90.00th=[ 251], 95.00th=[ 251], | 99.00th=[ 251], 99.50th=[ 251], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 4087, max= 4096, per=80.15%, avg=4091.50, stdev= 6.36, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1971KiB/s (2019kB/s)(7168KiB/3636msec); 0 zone resets clat (msec): min=77, max=637, avg=396.62, stdev=236.52 lat (msec): min=77, max=637, avg=396.74, stdev=236.55 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 87], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 418], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 617], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1996, max= 4087, per=38.72%, avg=2767.60, stdev=1027.35, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=14.97%, ctx=122, 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=5106KiB/s (5229kB/s), 546KiB/s-2917KiB/s (559kB/s-2987kB/s), io=20.0MiB (20.0MB), run=2457-4011msec WRITE: bw=7148KiB/s (7320kB/s), 1532KiB/s-2730KiB/s (1569kB/s-2795kB/s), io=28.0MiB (29.4MB), run=2457-4011msec 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=179653: Mon Aug 31 15:41:31 2026 read: IOPS=1, BW=5233KiB/s (5359kB/s)(12.0MiB/2348msec) clat (msec): min=685, max=860, avg=753.90, stdev=93.38 lat (msec): min=685, max=860, avg=753.90, stdev=93.38 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 860], 80.00th=[ 860], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 8126, max= 8192, per=100.00%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=16.62%, ctx=335, 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=179654: Mon Aug 31 15:41:31 2026 read: IOPS=0, BW=1342KiB/s (1374kB/s)(4096KiB/3052msec) clat (nsec): min=719450k, max=719450k, avg=719449656.00, stdev= 0.00 lat (nsec): min=719452k, max=719452k, avg=719451825.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 718], 80.00th=[ 718], 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= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2684KiB/s (2749kB/s)(8192KiB/3052msec); 0 zone resets clat (msec): min=531, max=1574, avg=1052.86, stdev=737.25 lat (msec): min=532, max=1574, avg=1053.33, stdev=737.00 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 1569], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8175, max= 8175, per=76.15%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.70%, ctx=134, 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=179655: Mon Aug 31 15:41:31 2026 write: IOPS=1, BW=6427KiB/s (6581kB/s)(12.0MiB/1912msec); 0 zone resets clat (msec): min=248, max=1037, avg=593.32, stdev=403.86 lat (msec): min=248, max=1038, avg=593.81, stdev=404.02 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 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= 6895, max= 8126, per=69.96%, avg=7510.50, stdev=870.45, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.21%, sys=7.17%, ctx=44, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=179657: Mon Aug 31 15:41:31 2026 write: IOPS=1, BW=5176KiB/s (5300kB/s)(12.0MiB/2374msec); 0 zone resets clat (msec): min=463, max=897, avg=705.94, stdev=221.64 lat (msec): min=463, max=897, avg=706.16, stdev=221.57 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 902], 80.00th=[ 902], 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= 7968, max= 8126, per=74.95%, avg=8047.00, stdev=111.72, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=5.44%, ctx=64, 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=5368KiB/s (5497kB/s), 1342KiB/s-5233KiB/s (1374kB/s-5359kB/s), io=16.0MiB (16.8MB), run=2348-3052msec WRITE: bw=10.5MiB/s (10.0MB/s), 2684KiB/s-6427KiB/s (2749kB/s-6581kB/s), io=32.0MiB (33.6MB), run=1912-3052msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179656: Mon Aug 31 15:41:31 2026 read: IOPS=0, BW=3885KiB/s (3978kB/s)(12.0MiB/3163msec) clat (msec): min=507, max=1327, avg=913.16, stdev=409.91 lat (msec): min=507, max=1327, avg=913.17, stdev=409.91 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, 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=4.90%, ctx=61, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179658: Mon Aug 31 15:41:31 2026 read: IOPS=0, BW=1280KiB/s (1311kB/s)(4096KiB/3199msec) clat (nsec): min=928917k, max=928917k, avg=928916616.00, stdev= 0.00 lat (nsec): min=928920k, max=928920k, avg=928919519.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2561KiB/s (2622kB/s)(8192KiB/3199msec); 0 zone resets clat (msec): min=397, max=1783, avg=1090.45, stdev=979.54 lat (msec): min=397, max=1783, avg=1090.70, stdev=979.67 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 1787], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 8175, max= 8175, per=79.81%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.19%, ctx=57, 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=179659: Mon Aug 31 15:41:31 2026 write: IOPS=1, BW=4122KiB/s (4221kB/s)(12.0MiB/2981msec); 0 zone resets clat (msec): min=703, max=1248, avg=915.99, stdev=291.43 lat (msec): min=704, max=1248, avg=916.33, stdev=291.39 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 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= 8110, max= 8175, per=79.49%, avg=8142.50, stdev=45.96, 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=4.66%, ctx=59, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179660: Mon Aug 31 15:41:31 2026 write: IOPS=1, BW=4857KiB/s (4973kB/s)(12.0MiB/2530msec); 0 zone resets clat (msec): min=551, max=973, avg=703.55, stdev=234.10 lat (msec): min=552, max=973, avg=703.95, stdev=234.10 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 978], 80.00th=[ 978], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 8175, max= 8175, per=79.81%, avg=8175.00, stdev= 0.00, 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=0.04%, sys=4.51%, ctx=52, 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=5122KiB/s (5245kB/s), 1280KiB/s-3885KiB/s (1311kB/s-3978kB/s), io=16.0MiB (16.8MB), run=3163-3199msec WRITE: bw=10.0MiB/s (10.5MB/s), 2561KiB/s-4857KiB/s (2622kB/s-4973kB/s), io=32.0MiB (33.6MB), run=2530-3199msec