== sanity test 398b: DIO and buffer IO race ============== 19:10:58 (1787872258) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.51387 s, 9.1 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=180060: Thu Aug 27 19:13:16 2026 read: IOPS=12, BW=50.2KiB/s (51.4kB/s)(5992KiB/119295msec) clat (usec): min=47, max=303446, avg=43389.66, stdev=28881.05 lat (usec): min=48, max=303447, avg=43391.26, stdev=28881.02 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 12125], 10.00th=[ 16581], 20.00th=[ 22152], | 30.00th=[ 26608], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 52167], 80.00th=[ 61604], 90.00th=[ 77071], 95.00th=[ 92799], | 99.00th=[145753], 99.50th=[179307], 99.90th=[238027], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 111, per=25.00%, avg=50.00, stdev=18.31, samples=235 iops : min= 1, max= 27, avg=11.86, stdev= 4.59, samples=235 write: IOPS=13, BW=52.8KiB/s (54.0kB/s)(6296KiB/119295msec); 0 zone resets clat (usec): min=1008, max=957818, avg=34129.93, stdev=40518.57 lat (usec): min=1009, max=957820, avg=34137.07, stdev=40518.36 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1483], 10.00th=[ 2245], 20.00th=[ 4621], | 30.00th=[ 8848], 40.00th=[ 18220], 50.00th=[ 25035], 60.00th=[ 32637], | 70.00th=[ 42730], 80.00th=[ 55837], 90.00th=[ 79168], 95.00th=[ 99091], | 99.00th=[147850], 99.50th=[160433], 99.90th=[225444], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 143, per=25.10%, avg=52.71, stdev=21.59, samples=234 iops : min= 1, max= 35, avg=12.54, stdev= 5.44, samples=234 lat (usec) : 50=0.07%, 100=1.53%, 250=0.26%, 500=0.03%, 750=0.03% lat (msec) : 2=4.13%, 4=4.95%, 10=7.29%, 20=11.13%, 50=42.58% lat (msec) : 100=23.70%, 250=4.23%, 500=0.03%, 1000=0.03% cpu : usr=0.10%, sys=5.68%, ctx=7008, 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=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=180062: Thu Aug 27 19:13:16 2026 read: IOPS=12, BW=50.3KiB/s (51.5kB/s)(5940KiB/118144msec) clat (usec): min=48, max=299963, avg=43225.39, stdev=26789.49 lat (usec): min=49, max=299964, avg=43228.19, stdev=26790.38 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 12780], 10.00th=[ 17695], 20.00th=[ 22938], | 30.00th=[ 27132], 40.00th=[ 31327], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 62129], 90.00th=[ 76022], 95.00th=[ 90702], | 99.00th=[132645], 99.50th=[164627], 99.90th=[181404], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 95, per=24.97%, avg=49.94, stdev=17.41, samples=232 iops : min= 1, max= 23, avg=11.84, stdev= 4.37, samples=232 write: IOPS=13, BW=53.7KiB/s (55.0kB/s)(6348KiB/118144msec); 0 zone resets clat (usec): min=987, max=981212, avg=33652.35, stdev=40620.46 lat (usec): min=988, max=981213, avg=33654.81, stdev=40620.49 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1614], 10.00th=[ 2442], 20.00th=[ 4752], | 30.00th=[ 8586], 40.00th=[ 17171], 50.00th=[ 25035], 60.00th=[ 32900], | 70.00th=[ 41681], 80.00th=[ 54789], 90.00th=[ 77071], 95.00th=[ 99091], | 99.00th=[143655], 99.50th=[173016], 99.90th=[274727], 99.95th=[977273], | 99.99th=[977273] bw ( KiB/s): min= 15, max= 111, per=25.48%, avg=53.52, stdev=20.44, samples=231 iops : min= 3, max= 27, avg=12.74, stdev= 5.14, samples=231 lat (usec) : 50=0.03%, 100=1.30%, 250=0.36%, 500=0.03%, 1000=0.07% lat (msec) : 2=3.65%, 4=5.40%, 10=7.88%, 20=10.32%, 50=43.03% lat (msec) : 100=23.96%, 250=3.87%, 500=0.07%, 1000=0.03% cpu : usr=0.10%, sys=5.58%, ctx=7063, 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=180063: Thu Aug 27 19:13:16 2026 read: IOPS=12, BW=50.4KiB/s (51.6kB/s)(6028KiB/119666msec) clat (usec): min=36, max=1025.2k, avg=43302.98, stdev=37071.84 lat (usec): min=36, max=1025.2k, avg=43304.82, stdev=37071.98 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 11338], 10.00th=[ 17171], | 20.00th=[ 22414], 30.00th=[ 26870], 40.00th=[ 32375], | 50.00th=[ 38011], 60.00th=[ 43779], 70.00th=[ 50594], | 80.00th=[ 58983], 90.00th=[ 73925], 95.00th=[ 90702], | 99.00th=[ 137364], 99.50th=[ 164627], 99.90th=[ 329253], | 99.95th=[1027605], 99.99th=[1027605] bw ( KiB/s): min= 5, max= 103, per=25.12%, avg=50.25, stdev=18.30, samples=234 iops : min= 1, max= 25, avg=11.92, stdev= 4.59, samples=234 write: IOPS=13, BW=52.3KiB/s (53.6kB/s)(6260KiB/119666msec); 0 zone resets clat (usec): min=1092, max=292784, avg=34404.43, stdev=34048.42 lat (usec): min=1094, max=292788, avg=34412.86, stdev=34051.89 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1483], 10.00th=[ 2376], 20.00th=[ 4424], | 30.00th=[ 8160], 40.00th=[ 17957], 50.00th=[ 25560], 60.00th=[ 34341], | 70.00th=[ 45351], 80.00th=[ 59507], 90.00th=[ 81265], 95.00th=[102237], | 99.00th=[139461], 99.50th=[154141], 99.90th=[287310], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 127, per=24.78%, avg=52.03, stdev=20.49, samples=234 iops : min= 1, max= 31, avg=12.37, stdev= 5.15, samples=234 lat (usec) : 50=0.10%, 100=1.27%, 250=0.39%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=4.20%, 4=5.08%, 10=7.91%, 20=10.22%, 50=42.22% lat (msec) : 100=23.99%, 250=4.33%, 500=0.10%, 2000=0.03% cpu : usr=0.08%, sys=5.60%, ctx=7056, 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=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=180065: Thu Aug 27 19:13:16 2026 read: IOPS=12, BW=51.4KiB/s (52.6kB/s)(6052KiB/117856msec) clat (usec): min=39, max=236158, avg=42582.89, stdev=27178.84 lat (usec): min=39, max=236159, avg=42584.90, stdev=27179.14 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 12780], 10.00th=[ 16909], 20.00th=[ 22414], | 30.00th=[ 26608], 40.00th=[ 31065], 50.00th=[ 36963], 60.00th=[ 42730], | 70.00th=[ 50594], 80.00th=[ 60031], 90.00th=[ 74974], 95.00th=[ 95945], | 99.00th=[130548], 99.50th=[156238], 99.90th=[210764], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 15, max= 110, per=25.79%, avg=51.58, stdev=18.61, samples=230 iops : min= 3, max= 27, avg=12.25, stdev= 4.70, samples=230 write: IOPS=13, BW=52.9KiB/s (54.2kB/s)(6236KiB/117856msec); 0 zone resets clat (usec): min=1091, max=1051.5k, avg=33934.40, stdev=42540.39 lat (usec): min=1092, max=1051.5k, avg=33939.09, stdev=42540.01 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1565], 10.00th=[ 2311], | 20.00th=[ 4555], 30.00th=[ 7963], 40.00th=[ 15795], | 50.00th=[ 24773], 60.00th=[ 32375], 70.00th=[ 42730], | 80.00th=[ 57410], 90.00th=[ 78119], 95.00th=[ 98042], | 99.00th=[ 158335], 99.50th=[ 179307], 99.90th=[ 261096], | 99.95th=[1052771], 99.99th=[1052771] bw ( KiB/s): min= 7, max= 152, per=25.15%, avg=52.81, stdev=22.59, samples=231 iops : min= 1, max= 38, avg=12.57, stdev= 5.67, samples=231 lat (usec) : 50=0.10%, 100=1.24%, 250=0.29%, 500=0.07% lat (msec) : 2=4.13%, 4=4.88%, 10=8.33%, 20=10.68%, 50=42.97% lat (msec) : 100=22.85%, 250=4.39%, 500=0.03%, 2000=0.03% cpu : usr=0.09%, sys=5.83%, ctx=7220, 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=201KiB/s (205kB/s), 50.2KiB/s-51.4KiB/s (51.4kB/s-52.6kB/s), io=23.4MiB (24.6MB), run=117856-119666msec WRITE: bw=210KiB/s (215kB/s), 52.3KiB/s-53.7KiB/s (53.6kB/s-55.0kB/s), io=24.6MiB (25.7MB), run=117856-119666msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180061: Thu Aug 27 19:13:49 2026 read: IOPS=9, BW=39.2KiB/s (40.2kB/s)(5992KiB/152762msec) clat (msec): min=4, max=1020, avg=41.03, stdev=44.52 lat (msec): min=4, max=1020, avg=41.03, stdev=44.52 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 44], 80.00th=[ 61], 90.00th=[ 90], 95.00th=[ 117], | 99.00th=[ 184], 99.50th=[ 222], 99.90th=[ 321], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 151, per=25.57%, avg=40.14, stdev=27.93, samples=291 iops : min= 1, max= 37, avg= 9.38, stdev= 7.03, samples=291 write: IOPS=10, BW=41.2KiB/s (42.2kB/s)(6296KiB/152762msec); 0 zone resets clat (msec): min=9, max=365, avg=57.69, stdev=41.05 lat (msec): min=9, max=365, avg=57.69, stdev=41.05 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 55], | 70.00th=[ 69], 80.00th=[ 86], 90.00th=[ 112], 95.00th=[ 136], | 99.00th=[ 203], 99.50th=[ 245], 99.90th=[ 317], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 126, per=25.01%, avg=41.02, stdev=25.93, samples=299 iops : min= 1, max= 31, avg= 9.60, stdev= 6.54, samples=299 lat (msec) : 10=2.86%, 20=17.51%, 50=45.02%, 100=23.89%, 250=10.38% lat (msec) : 500=0.29%, 2000=0.03% cpu : usr=0.06%, sys=1.94%, ctx=4902, 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=180064: Thu Aug 27 19:13:49 2026 read: IOPS=9, BW=38.8KiB/s (39.8kB/s)(5940KiB/152910msec) clat (msec): min=5, max=1020, avg=40.48, stdev=44.30 lat (msec): min=5, max=1020, avg=40.48, stdev=44.30 clat percentiles (msec): | 1.00th=[ 8], 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=[ 58], 90.00th=[ 89], 95.00th=[ 113], | 99.00th=[ 184], 99.50th=[ 205], 99.90th=[ 330], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 182, per=24.85%, avg=39.02, stdev=28.10, samples=296 iops : min= 1, max= 45, avg= 9.09, stdev= 7.07, samples=296 write: IOPS=10, BW=41.5KiB/s (42.5kB/s)(6348KiB/152910msec); 0 zone resets clat (msec): min=11, max=342, avg=58.16, stdev=40.55 lat (msec): min=11, max=342, avg=58.17, stdev=40.55 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 56], | 70.00th=[ 69], 80.00th=[ 86], 90.00th=[ 115], 95.00th=[ 140], | 99.00th=[ 203], 99.50th=[ 236], 99.90th=[ 275], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 127, per=25.07%, avg=41.11, stdev=25.69, samples=300 iops : min= 1, max= 31, avg= 9.62, stdev= 6.47, samples=300 lat (msec) : 10=3.12%, 20=17.06%, 50=45.18%, 100=23.70%, 250=10.68% lat (msec) : 500=0.23%, 2000=0.03% cpu : usr=0.08%, sys=1.93%, ctx=4702, 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=180066: Thu Aug 27 19:13:49 2026 read: IOPS=9, BW=39.6KiB/s (40.5kB/s)(6028KiB/152243msec) clat (msec): min=5, max=329, avg=39.58, stdev=36.35 lat (msec): min=5, max=329, avg=39.58, stdev=36.35 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 58], 90.00th=[ 90], 95.00th=[ 113], | 99.00th=[ 171], 99.50th=[ 207], 99.90th=[ 288], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 152, per=25.55%, avg=40.12, stdev=27.85, samples=293 iops : min= 1, max= 38, avg= 9.37, stdev= 7.03, samples=293 write: IOPS=10, BW=41.1KiB/s (42.1kB/s)(6260KiB/152243msec); 0 zone resets clat (msec): min=8, max=1043, avg=58.87, stdev=49.79 lat (msec): min=8, max=1043, avg=58.87, stdev=49.79 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 44], 60.00th=[ 54], | 70.00th=[ 68], 80.00th=[ 87], 90.00th=[ 115], 95.00th=[ 144], | 99.00th=[ 215], 99.50th=[ 247], 99.90th=[ 355], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 159, per=24.97%, avg=40.95, stdev=27.06, samples=298 iops : min= 1, max= 39, avg= 9.58, stdev= 6.80, samples=298 lat (msec) : 10=3.26%, 20=18.52%, 50=44.43%, 100=22.43%, 250=11.00% lat (msec) : 500=0.33%, 2000=0.03% cpu : usr=0.06%, sys=2.01%, ctx=4796, 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=180067: Thu Aug 27 19:13:49 2026 read: IOPS=9, BW=39.8KiB/s (40.7kB/s)(6052KiB/152180msec) clat (msec): min=5, max=324, avg=40.56, stdev=37.48 lat (msec): min=5, max=324, avg=40.56, stdev=37.48 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 58], 90.00th=[ 90], 95.00th=[ 122], | 99.00th=[ 190], 99.50th=[ 205], 99.90th=[ 296], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 7, max= 174, per=25.67%, avg=40.31, stdev=26.79, samples=293 iops : min= 1, max= 43, avg= 9.42, stdev= 6.76, samples=293 write: IOPS=10, BW=40.0KiB/s (41.0kB/s)(6236KiB/152180msec); 0 zone resets clat (msec): min=10, max=1046, avg=57.92, stdev=47.53 lat (msec): min=10, max=1046, avg=57.93, stdev=47.53 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 55], | 70.00th=[ 69], 80.00th=[ 86], 90.00th=[ 110], 95.00th=[ 133], | 99.00th=[ 207], 99.50th=[ 222], 99.90th=[ 347], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 127, per=24.96%, avg=40.93, stdev=25.65, samples=297 iops : min= 1, max= 31, avg= 9.57, stdev= 6.45, samples=297 lat (msec) : 10=2.51%, 20=17.12%, 50=46.29%, 100=23.11%, 250=10.71% lat (msec) : 500=0.23%, 2000=0.03% cpu : usr=0.07%, sys=1.97%, ctx=4819, 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=157KiB/s (161kB/s), 38.8KiB/s-39.8KiB/s (39.8kB/s-40.7kB/s), io=23.4MiB (24.6MB), run=152180-152910msec WRITE: bw=164KiB/s (168kB/s), 40.0KiB/s-41.5KiB/s (41.0kB/s-42.5kB/s), io=24.6MiB (25.7MB), run=152180-152910msec 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=180104: Thu Aug 27 19:14:33 2026 read: IOPS=11, BW=189KiB/s (193kB/s)(5920KiB/31353msec) clat (usec): min=48, max=172231, avg=44737.87, stdev=28622.92 lat (usec): min=48, max=172232, avg=44739.07, stdev=28622.92 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 73], 10.00th=[ 13435], 20.00th=[ 24511], | 30.00th=[ 30540], 40.00th=[ 35914], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 52167], 80.00th=[ 64750], 90.00th=[ 81265], 95.00th=[ 99091], | 99.00th=[147850], 99.50th=[154141], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 61, max= 348, per=26.02%, avg=189.46, stdev=64.29, samples=61 iops : min= 3, max= 21, avg=11.00, stdev= 4.03, samples=61 write: IOPS=12, BW=203KiB/s (208kB/s)(6368KiB/31353msec); 0 zone resets clat (usec): min=1597, max=205809, avg=36146.61, stdev=35886.27 lat (usec): min=1599, max=205811, avg=36149.52, stdev=35886.15 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2474], 10.00th=[ 3818], 20.00th=[ 6128], | 30.00th=[ 9241], 40.00th=[ 17695], 50.00th=[ 25822], 60.00th=[ 33817], | 70.00th=[ 45876], 80.00th=[ 61080], 90.00th=[ 86508], 95.00th=[107480], | 99.00th=[158335], 99.50th=[162530], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 62, max= 407, per=26.64%, avg=204.03, stdev=82.47, samples=61 iops : min= 3, max= 25, avg=11.93, stdev= 5.21, samples=61 lat (usec) : 50=0.26%, 100=2.99%, 250=0.52%, 500=0.13%, 1000=0.13% lat (msec) : 2=2.08%, 4=3.91%, 10=10.55%, 20=8.72%, 50=41.28% lat (msec) : 100=23.70%, 250=5.73% cpu : usr=0.07%, sys=5.80%, ctx=1775, 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=180105: Thu Aug 27 19:14:33 2026 read: IOPS=11, BW=177KiB/s (181kB/s)(5744KiB/32457msec) clat (usec): min=49, max=233685, avg=46788.53, stdev=32806.71 lat (usec): min=49, max=233686, avg=46790.41, stdev=32806.49 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 71], 10.00th=[ 13042], 20.00th=[ 23725], | 30.00th=[ 29754], 40.00th=[ 35390], 50.00th=[ 42206], 60.00th=[ 48497], | 70.00th=[ 54264], 80.00th=[ 66847], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[179307], 99.50th=[202376], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 31, max= 351, per=24.55%, avg=178.71, stdev=73.92, samples=62 iops : min= 1, max= 21, avg=10.34, stdev= 4.62, samples=62 write: IOPS=12, BW=202KiB/s (206kB/s)(6544KiB/32457msec); 0 zone resets clat (usec): min=1712, max=202375, avg=37783.22, stdev=36771.26 lat (usec): min=1713, max=202376, avg=37805.43, stdev=36772.68 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2835], 10.00th=[ 4228], 20.00th=[ 6456], | 30.00th=[ 10814], 40.00th=[ 18744], 50.00th=[ 27657], 60.00th=[ 36439], | 70.00th=[ 47449], 80.00th=[ 64226], 90.00th=[ 82314], 95.00th=[117965], | 99.00th=[160433], 99.50th=[177210], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 31, max= 447, per=25.90%, avg=198.40, stdev=79.25, samples=63 iops : min= 1, max= 27, avg=11.59, stdev= 4.98, samples=63 lat (usec) : 50=0.13%, 100=3.39%, 250=0.39% lat (msec) : 2=1.30%, 4=2.99%, 10=11.07%, 20=10.55%, 50=38.15% lat (msec) : 100=24.74%, 250=7.29% cpu : usr=0.07%, sys=5.60%, ctx=1756, 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=180106: Thu Aug 27 19:14:33 2026 read: IOPS=11, BW=190KiB/s (195kB/s)(6256KiB/32875msec) clat (usec): min=37, max=227158, avg=45494.93, stdev=34242.85 lat (usec): min=37, max=227158, avg=45496.33, stdev=34242.84 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 70], 10.00th=[ 99], 20.00th=[ 21103], | 30.00th=[ 28443], 40.00th=[ 33817], 50.00th=[ 40109], 60.00th=[ 45351], | 70.00th=[ 53216], 80.00th=[ 67634], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[168821], 99.50th=[214959], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 31, max= 474, per=26.05%, avg=189.64, stdev=74.90, samples=64 iops : min= 1, max= 29, avg=11.05, stdev= 4.73, samples=64 write: IOPS=11, BW=183KiB/s (188kB/s)(6032KiB/32875msec); 0 zone resets clat (usec): min=1592, max=202502, avg=38986.95, stdev=36638.38 lat (usec): min=1595, max=202504, avg=38991.51, stdev=36638.86 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2540], 10.00th=[ 3785], 20.00th=[ 6652], | 30.00th=[ 12518], 40.00th=[ 19530], 50.00th=[ 26870], 60.00th=[ 38011], | 70.00th=[ 49021], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[114820], | 99.00th=[149947], 99.50th=[162530], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 61, max= 407, per=23.47%, avg=179.81, stdev=85.73, samples=64 iops : min= 3, max= 25, avg=10.42, stdev= 5.39, samples=64 lat (usec) : 50=0.39%, 100=4.82%, 250=0.78% lat (msec) : 2=1.95%, 4=3.52%, 10=7.68%, 20=10.03%, 50=39.45% lat (msec) : 100=23.70%, 250=7.68% cpu : usr=0.07%, sys=5.56%, ctx=1797, 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=180108: Thu Aug 27 19:14:33 2026 read: IOPS=11, BW=192KiB/s (196kB/s)(6032KiB/31447msec) clat (usec): min=40, max=173139, avg=43545.80, stdev=29525.33 lat (usec): min=40, max=173140, avg=43553.64, stdev=29525.18 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 204], 20.00th=[ 21365], | 30.00th=[ 27395], 40.00th=[ 34341], 50.00th=[ 41157], 60.00th=[ 46400], | 70.00th=[ 53740], 80.00th=[ 63177], 90.00th=[ 82314], 95.00th=[ 99091], | 99.00th=[133694], 99.50th=[160433], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 63, max= 347, per=26.61%, avg=193.72, stdev=76.03, samples=60 iops : min= 3, max= 21, avg=11.27, stdev= 4.80, samples=60 write: IOPS=12, BW=199KiB/s (204kB/s)(6256KiB/31447msec); 0 zone resets clat (usec): min=1633, max=234722, avg=37616.71, stdev=37577.96 lat (usec): min=1635, max=234725, avg=37622.39, stdev=37578.78 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2540], 10.00th=[ 3916], 20.00th=[ 5997], | 30.00th=[ 9241], 40.00th=[ 15401], 50.00th=[ 26346], 60.00th=[ 36963], | 70.00th=[ 50594], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[102237], | 99.00th=[193987], 99.50th=[202376], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 62, max= 347, per=25.77%, avg=197.38, stdev=71.83, samples=61 iops : min= 3, max= 21, avg=11.51, stdev= 4.50, samples=61 lat (usec) : 50=0.26%, 100=4.04%, 250=0.65%, 500=0.13%, 750=0.39% lat (usec) : 1000=0.13% lat (msec) : 2=1.30%, 4=3.91%, 10=10.55%, 20=10.16%, 50=35.81% lat (msec) : 100=27.34%, 250=5.34% cpu : usr=0.07%, sys=5.49%, ctx=1774, 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=729KiB/s (746kB/s), 177KiB/s-192KiB/s (181kB/s-196kB/s), io=23.4MiB (24.5MB), run=31353-32875msec WRITE: bw=767KiB/s (785kB/s), 183KiB/s-203KiB/s (188kB/s-208kB/s), io=24.6MiB (25.8MB), run=31353-32875msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180107: Thu Aug 27 19:14:43 2026 read: IOPS=8, BW=138KiB/s (141kB/s)(5920KiB/42882msec) clat (msec): min=7, max=483, avg=45.27, stdev=42.22 lat (msec): min=7, max=483, avg=45.28, stdev=42.22 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 42], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 90], 95.00th=[ 117], | 99.00th=[ 180], 99.50th=[ 268], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 30, max= 475, per=26.32%, avg=144.24, stdev=91.00, samples=80 iops : min= 1, max= 29, avg= 8.20, stdev= 5.81, samples=80 write: IOPS=9, BW=149KiB/s (152kB/s)(6368KiB/42882msec); 0 zone resets clat (msec): min=15, max=342, avg=64.94, stdev=47.58 lat (msec): min=15, max=342, avg=64.94, stdev=47.58 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 52], 60.00th=[ 59], | 70.00th=[ 74], 80.00th=[ 90], 90.00th=[ 120], 95.00th=[ 161], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 30, max= 415, per=25.71%, avg=148.37, stdev=85.65, samples=84 iops : min= 1, max= 25, avg= 8.44, stdev= 5.45, samples=84 lat (msec) : 10=2.08%, 20=11.20%, 50=46.22%, 100=27.60%, 250=11.98% lat (msec) : 500=0.91% cpu : usr=0.07%, sys=1.93%, ctx=1207, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180109: Thu Aug 27 19:14:43 2026 read: IOPS=8, BW=132KiB/s (135kB/s)(5744KiB/43671msec) clat (msec): min=6, max=321, avg=47.47, stdev=45.01 lat (msec): min=6, max=321, avg=47.47, stdev=45.01 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 65], 90.00th=[ 116], 95.00th=[ 146], | 99.00th=[ 224], 99.50th=[ 275], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 439, per=24.89%, avg=136.41, stdev=81.40, samples=83 iops : min= 1, max= 27, avg= 7.71, stdev= 5.18, samples=83 write: IOPS=9, BW=150KiB/s (153kB/s)(6544KiB/43671msec); 0 zone resets clat (msec): min=13, max=319, avg=64.83, stdev=44.51 lat (msec): min=13, max=319, avg=64.83, stdev=44.51 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 50], 60.00th=[ 61], | 70.00th=[ 77], 80.00th=[ 94], 90.00th=[ 121], 95.00th=[ 155], | 99.00th=[ 205], 99.50th=[ 211], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 512, per=26.19%, avg=151.09, stdev=87.70, samples=85 iops : min= 1, max= 32, avg= 8.62, stdev= 5.60, samples=85 lat (msec) : 10=0.78%, 20=12.76%, 50=46.48%, 100=25.78%, 250=13.67% lat (msec) : 500=0.52% cpu : usr=0.03%, sys=1.77%, ctx=1234, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180110: Thu Aug 27 19:14:43 2026 read: IOPS=9, BW=145KiB/s (149kB/s)(6256KiB/43098msec) clat (msec): min=7, max=258, avg=49.32, stdev=41.64 lat (msec): min=7, max=258, avg=49.33, stdev=41.65 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 54], 80.00th=[ 74], 90.00th=[ 109], 95.00th=[ 142], | 99.00th=[ 213], 99.50th=[ 247], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 31, max= 383, per=26.65%, avg=146.02, stdev=90.87, samples=84 iops : min= 1, max= 23, avg= 8.30, stdev= 5.79, samples=84 write: IOPS=8, BW=140KiB/s (143kB/s)(6032KiB/43098msec); 0 zone resets clat (msec): min=12, max=240, avg=62.55, stdev=39.89 lat (msec): min=12, max=240, avg=62.55, stdev=39.89 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 53], 60.00th=[ 60], | 70.00th=[ 73], 80.00th=[ 91], 90.00th=[ 118], 95.00th=[ 146], | 99.00th=[ 201], 99.50th=[ 228], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 31, max= 439, per=24.26%, avg=139.96, stdev=82.53, samples=83 iops : min= 1, max= 27, avg= 7.93, stdev= 5.24, samples=83 lat (msec) : 10=1.17%, 20=11.85%, 50=44.66%, 100=28.78%, 250=13.41% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=1.76%, ctx=1142, 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=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=180111: Thu Aug 27 19:14:43 2026 read: IOPS=8, BW=139KiB/s (142kB/s)(6032KiB/43514msec) clat (msec): min=6, max=330, avg=47.66, stdev=43.28 lat (msec): min=6, max=330, avg=47.66, stdev=43.28 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 50], 80.00th=[ 68], 90.00th=[ 102], 95.00th=[ 129], | 99.00th=[ 247], 99.50th=[ 300], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 31, max= 480, per=25.59%, avg=140.24, stdev=91.65, samples=83 iops : min= 1, max= 30, avg= 7.94, stdev= 5.84, samples=83 write: IOPS=8, BW=144KiB/s (147kB/s)(6256KiB/43514msec); 0 zone resets clat (msec): min=11, max=291, avg=64.47, stdev=46.82 lat (msec): min=11, max=291, avg=64.48, stdev=46.81 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 49], 60.00th=[ 60], | 70.00th=[ 72], 80.00th=[ 93], 90.00th=[ 124], 95.00th=[ 167], | 99.00th=[ 241], 99.50th=[ 266], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 31, max= 538, per=24.75%, avg=142.84, stdev=94.49, samples=85 iops : min= 1, max= 33, avg= 8.09, stdev= 6.00, samples=85 lat (msec) : 10=1.43%, 20=11.72%, 50=47.27%, 100=26.17%, 250=12.76% lat (msec) : 500=0.65% cpu : usr=0.06%, sys=1.82%, ctx=1215, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=548KiB/s (562kB/s), 132KiB/s-145KiB/s (135kB/s-149kB/s), io=23.4MiB (24.5MB), run=42882-43671msec WRITE: bw=577KiB/s (591kB/s), 140KiB/s-150KiB/s (143kB/s-153kB/s), io=24.6MiB (25.8MB), run=42882-43671msec 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=180124: Thu Aug 27 19:14:59 2026 read: IOPS=2, BW=2132KiB/s (2183kB/s)(7168KiB/3362msec) clat (usec): min=592, max=335595, avg=199337.96, stdev=104727.52 lat (usec): min=593, max=335596, avg=199339.30, stdev=104727.56 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], 20.00th=[173016], | 30.00th=[189793], 40.00th=[189793], 50.00th=[196084], 60.00th=[219153], | 70.00th=[219153], 80.00th=[278922], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 1473, max= 4079, per=60.44%, avg=2894.00, stdev=1373.62, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1523KiB/s (1559kB/s)(5120KiB/3362msec); 0 zone resets clat (msec): min=162, max=437, avg=330.86, stdev=106.58 lat (msec): min=162, max=437, avg=331.08, stdev=106.71 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 1961, max= 2043, per=30.13%, avg=2019.50, stdev=39.14, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=50.00% cpu : usr=0.00%, sys=21.07%, ctx=265, 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=180125: Thu Aug 27 19:14:59 2026 read: IOPS=0, BW=479KiB/s (490kB/s)(2048KiB/4277msec) clat (msec): min=177, max=333, avg=255.61, stdev=110.75 lat (msec): min=177, max=333, avg=255.61, stdev=110.75 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 178], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 1477, max= 1961, per=35.90%, avg=1719.00, stdev=342.24, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2394KiB/s (2452kB/s)(10.0MiB/4277msec); 0 zone resets clat (msec): min=173, max=844, avg=372.15, stdev=200.15 lat (msec): min=174, max=844, avg=372.29, stdev=200.11 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 222], | 30.00th=[ 228], 40.00th=[ 234], 50.00th=[ 330], 60.00th=[ 334], | 70.00th=[ 376], 80.00th=[ 456], 90.00th=[ 531], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1477, max= 4096, per=37.77%, avg=2531.86, stdev=1076.22, samples=7 iops : min= 1, max= 4, avg= 1.86, stdev= 1.21, samples=7 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=20.18%, ctx=207, 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=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=180126: Thu Aug 27 19:14:59 2026 read: IOPS=1, BW=1551KiB/s (1588kB/s)(6144KiB/3962msec) clat (usec): min=528, max=296620, avg=163874.86, stdev=131823.03 lat (usec): min=530, max=296621, avg=163875.92, stdev=131823.11 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 537], | 30.00th=[ 537], 40.00th=[200279], 50.00th=[200279], 60.00th=[210764], | 70.00th=[274727], 80.00th=[274727], 90.00th=[295699], 95.00th=[295699], | 99.00th=[295699], 99.50th=[295699], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 1961, max= 6107, per=70.39%, avg=3370.33, stdev=2370.38, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1551KiB/s (1588kB/s)(6144KiB/3962msec); 0 zone resets clat (msec): min=177, max=1011, avg=478.45, stdev=321.57 lat (msec): min=177, max=1011, avg=478.54, stdev=321.60 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 414], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 1961, max= 4071, per=44.59%, avg=2988.67, stdev=1056.06, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=16.67% lat (msec) : 250=25.00%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=15.48%, ctx=186, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180127: Thu Aug 27 19:14:59 2026 read: IOPS=1, BW=1308KiB/s (1340kB/s)(5120KiB/3914msec) clat (usec): min=517, max=543906, avg=156836.48, stdev=239452.01 lat (usec): min=517, max=543907, avg=156837.38, stdev=239452.00 clat percentiles (usec): | 1.00th=[ 519], 5.00th=[ 519], 10.00th=[ 519], 20.00th=[ 519], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[ 1500], 60.00th=[ 1500], | 70.00th=[238027], 80.00th=[238027], 90.00th=[541066], 95.00th=[541066], | 99.00th=[541066], 99.50th=[541066], 99.90th=[541066], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 7846, max= 7846, per=100.00%, avg=7846.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1831KiB/s (1875kB/s)(7168KiB/3914msec); 0 zone resets clat (msec): min=166, max=735, avg=425.57, stdev=187.81 lat (msec): min=166, max=735, avg=425.66, stdev=187.81 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 275], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 405], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 527], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1481, max= 4096, per=43.57%, avg=2920.75, stdev=1357.60, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (usec) : 750=16.67% lat (msec) : 2=8.33%, 250=16.67%, 500=25.00%, 750=33.33% cpu : usr=0.00%, sys=16.76%, ctx=136, 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=4788KiB/s (4903kB/s), 479KiB/s-2132KiB/s (490kB/s-2183kB/s), io=20.0MiB (20.0MB), run=3362-4277msec WRITE: bw=6704KiB/s (6865kB/s), 1523KiB/s-2394KiB/s (1559kB/s-2452kB/s), io=28.0MiB (29.4MB), run=3362-4277msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180128: Thu Aug 27 19:15:00 2026 read: IOPS=1, BW=1779KiB/s (1821kB/s)(7168KiB/4030msec) clat (msec): min=123, max=916, avg=312.98, stdev=275.89 lat (msec): min=123, max=916, avg=312.99, stdev=275.89 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 146], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 220], 60.00th=[ 253], | 70.00th=[ 253], 80.00th=[ 342], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 1822, max= 4079, per=63.92%, avg=2748.50, stdev=1058.49, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1270KiB/s (1301kB/s)(5120KiB/4030msec); 0 zone resets clat (msec): min=114, max=514, avg=323.59, stdev=179.31 lat (msec): min=114, max=515, avg=323.79, stdev=179.14 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 372], 60.00th=[ 372], | 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= 1976, max= 4007, per=41.73%, avg=2512.25, stdev=996.87, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=5.44%, ctx=94, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=180129: Thu Aug 27 19:15:00 2026 read: IOPS=0, BW=433KiB/s (444kB/s)(2048KiB/4726msec) clat (msec): min=89, max=146, avg=118.03, stdev=40.04 lat (msec): min=89, max=146, avg=118.03, stdev=40.04 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 90], | 30.00th=[ 90], 40.00th=[ 90], 50.00th=[ 90], 60.00th=[ 146], | 70.00th=[ 146], 80.00th=[ 146], 90.00th=[ 146], 95.00th=[ 146], | 99.00th=[ 146], 99.50th=[ 146], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 1521, max= 2043, per=41.44%, avg=1782.00, stdev=369.11, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2167KiB/s (2219kB/s)(10.0MiB/4726msec); 0 zone resets clat (msec): min=88, max=1331, avg=439.68, stdev=404.76 lat (msec): min=88, max=1331, avg=439.81, stdev=404.74 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 239], 60.00th=[ 300], | 70.00th=[ 439], 80.00th=[ 584], 90.00th=[ 936], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 1976, max= 4087, per=45.76%, avg=2754.60, stdev=1026.40, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 100=16.67%, 250=41.67%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=6.03%, ctx=111, 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=180130: Thu Aug 27 19:15:00 2026 read: IOPS=1, BW=1361KiB/s (1394kB/s)(6144KiB/4514msec) clat (msec): min=57, max=568, avg=238.92, stdev=183.96 lat (msec): min=57, max=568, avg=238.92, stdev=183.96 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 104], | 30.00th=[ 104], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 236], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1976, max= 4007, per=62.22%, avg=2675.33, stdev=1153.74, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1361KiB/s (1394kB/s)(6144KiB/4514msec); 0 zone resets clat (msec): min=102, max=1021, avg=457.24, stdev=322.66 lat (msec): min=102, max=1021, avg=457.38, stdev=322.64 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 199], | 30.00th=[ 199], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 443], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1822, max= 4079, per=41.20%, avg=2480.00, stdev=1070.01, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=7.60%, ctx=190, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180131: Thu Aug 27 19:15:00 2026 read: IOPS=1, BW=1075KiB/s (1101kB/s)(5120KiB/4762msec) clat (msec): min=34, max=535, avg=319.15, stdev=208.09 lat (msec): min=34, max=535, avg=319.16, stdev=208.09 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 35], 10.00th=[ 35], 20.00th=[ 35], | 30.00th=[ 207], 40.00th=[ 207], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 1976, max= 2043, per=46.87%, avg=2015.33, stdev=34.99, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 write: IOPS=1, BW=1505KiB/s (1541kB/s)(7168KiB/4762msec); 0 zone resets clat (msec): min=75, max=1153, avg=419.41, stdev=404.25 lat (msec): min=76, max=1153, avg=419.56, stdev=404.22 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 99], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 271], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 768], 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= 1822, max= 2039, per=32.77%, avg=1972.75, stdev=101.61, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 50=8.33%, 100=16.67%, 250=16.67%, 500=33.33%, 750=8.33% lat (msec) : 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=6.76%, ctx=110, 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=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=4301KiB/s (4404kB/s), 433KiB/s-1779KiB/s (444kB/s-1821kB/s), io=20.0MiB (20.0MB), run=4030-4762msec WRITE: bw=6021KiB/s (6166kB/s), 1270KiB/s-2167KiB/s (1301kB/s-2219kB/s), io=28.0MiB (29.4MB), run=4030-4762msec 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=180138: Thu Aug 27 19:15:12 2026 read: IOPS=1, BW=4250KiB/s (4352kB/s)(12.0MiB/2891msec) clat (msec): min=694, max=1248, avg=938.58, stdev=282.58 lat (msec): min=694, max=1248, avg=938.58, stdev=282.58 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 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= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.17%, sys=4.57%, 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=180139: Thu Aug 27 19:15:12 2026 read: IOPS=0, BW=1563KiB/s (1600kB/s)(4096KiB/2621msec) clat (nsec): min=1250.0M, max=1250.0M, avg=1250041908.00, stdev= 0.00 lat (nsec): min=1250.0M, max=1250.0M, avg=1250045263.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1250], 5.00th=[ 1250], 10.00th=[ 1250], 20.00th=[ 1250], | 30.00th=[ 1250], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 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= 7816, max= 7816, per=100.00%, avg=7816.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3126KiB/s (3201kB/s)(8192KiB/2621msec); 0 zone resets clat (msec): min=186, max=1139, avg=662.86, stdev=673.73 lat (msec): min=186, max=1139, avg=663.31, stdev=673.85 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 1133], | 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= 8143, max= 8143, per=65.13%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.03%, ctx=53, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180141: Thu Aug 27 19:15:12 2026 write: IOPS=1, BW=6808KiB/s (6971kB/s)(12.0MiB/1805msec); 0 zone resets clat (msec): min=333, max=850, avg=573.45, stdev=260.31 lat (msec): min=333, max=851, avg=574.12, stdev=260.59 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 852], 80.00th=[ 852], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 5970, max= 7816, per=55.14%, avg=6893.00, stdev=1305.32, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.06%, sys=9.42%, 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=180142: Thu Aug 27 19:15:12 2026 write: IOPS=1, BW=6298KiB/s (6449kB/s)(12.0MiB/1951msec); 0 zone resets clat (msec): min=195, max=1197, avg=618.69, stdev=518.75 lat (msec): min=196, max=1198, avg=619.74, stdev=518.46 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 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= 5826, max= 8175, per=56.00%, avg=7000.50, stdev=1660.99, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=9.23%, ctx=106, 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=5667KiB/s (5803kB/s), 1563KiB/s-4250KiB/s (1600kB/s-4352kB/s), io=16.0MiB (16.8MB), run=2621-2891msec WRITE: bw=12.2MiB/s (12.8MB/s), 3126KiB/s-6808KiB/s (3201kB/s-6971kB/s), io=32.0MiB (33.6MB), run=1805-2621msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180140: Thu Aug 27 19:15:12 2026 read: IOPS=1, BW=6071KiB/s (6217kB/s)(12.0MiB/2024msec) clat (msec): min=572, max=715, avg=656.26, stdev=74.84 lat (msec): min=572, max=715, avg=656.26, stdev=74.84 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 684], 50.00th=[ 684], 60.00th=[ 684], | 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= 8110, max= 8192, per=100.00%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=24.27%, ctx=620, 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=180143: Thu Aug 27 19:15:12 2026 read: IOPS=0, BW=1740KiB/s (1782kB/s)(4096KiB/2354msec) clat (nsec): min=643973k, max=643973k, avg=643972788.00, stdev= 0.00 lat (nsec): min=643976k, max=643976k, avg=643975662.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3480KiB/s (3564kB/s)(8192KiB/2354msec); 0 zone resets clat (msec): min=390, max=1197, avg=794.33, stdev=570.63 lat (msec): min=391, max=1198, avg=794.71, stdev=570.64 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 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= 8192, max= 8192, per=73.83%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.08%, ctx=139, 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=180144: Thu Aug 27 19:15:12 2026 write: IOPS=1, BW=4161KiB/s (4261kB/s)(12.0MiB/2953msec); 0 zone resets clat (msec): min=117, max=2488, avg=977.05, stdev=1312.69 lat (msec): min=117, max=2488, avg=977.49, stdev=1312.72 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 117], | 30.00th=[ 117], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 2500], 80.00th=[ 2500], 90.00th=[ 2500], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 8175, max= 8175, per=73.68%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=5.45%, ctx=51, 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=180145: Thu Aug 27 19:15:12 2026 write: IOPS=1, BW=4488KiB/s (4596kB/s)(12.0MiB/2738msec); 0 zone resets clat (msec): min=483, max=1207, avg=879.73, stdev=367.03 lat (msec): min=486, max=1207, avg=881.00, stdev=365.53 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 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= 6860, max= 8143, per=67.61%, avg=7501.50, stdev=907.22, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.07%, ctx=66, 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=6960KiB/s (7127kB/s), 1740KiB/s-6071KiB/s (1782kB/s-6217kB/s), io=16.0MiB (16.8MB), run=2024-2354msec WRITE: bw=10.8MiB/s (11.4MB/s), 3480KiB/s-4488KiB/s (3564kB/s-4596kB/s), io=32.0MiB (33.6MB), run=2354-2953msec