== sanity test 398b: DIO and buffer IO race ============== 09:19:26 (1790947166) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.66458 s, 8.9 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=180645: Fri Oct 2 09:21:37 2026 read: IOPS=13, BW=54.6KiB/s (55.9kB/s)(5992KiB/109725msec) clat (usec): min=42, max=1426.1k, avg=40400.53, stdev=43521.63 lat (usec): min=43, max=1426.1k, avg=40408.24, stdev=43531.33 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 10945], 10.00th=[ 15270], | 20.00th=[ 20841], 30.00th=[ 25035], 40.00th=[ 29492], | 50.00th=[ 33817], 60.00th=[ 40109], 70.00th=[ 46400], | 80.00th=[ 56886], 90.00th=[ 71828], 95.00th=[ 83362], | 99.00th=[ 130548], 99.50th=[ 143655], 99.90th=[ 179307], | 99.95th=[1434452], 99.99th=[1434452] bw ( KiB/s): min= 12, max= 127, per=25.39%, avg=54.58, stdev=19.24, samples=215 iops : min= 3, max= 31, avg=13.05, stdev= 4.82, samples=215 write: IOPS=14, BW=57.4KiB/s (58.8kB/s)(6296KiB/109725msec); 0 zone resets clat (usec): min=888, max=255742, avg=31006.47, stdev=32788.42 lat (usec): min=889, max=255743, avg=31008.05, stdev=32788.54 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1254], 10.00th=[ 1647], 20.00th=[ 3425], | 30.00th=[ 6128], 40.00th=[ 13698], 50.00th=[ 22676], 60.00th=[ 30540], | 70.00th=[ 39584], 80.00th=[ 52691], 90.00th=[ 74974], 95.00th=[ 93848], | 99.00th=[139461], 99.50th=[177210], 99.90th=[225444], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 7, max= 127, per=25.59%, avg=57.57, stdev=22.47, samples=214 iops : min= 1, max= 31, avg=13.79, stdev= 5.64, samples=214 lat (usec) : 50=0.33%, 100=1.33%, 250=0.26%, 500=0.03%, 1000=0.10% lat (msec) : 2=6.58%, 4=4.72%, 10=7.42%, 20=12.11%, 50=43.20% lat (msec) : 100=20.41%, 250=3.45%, 500=0.03%, 2000=0.03% cpu : usr=0.09%, sys=5.45%, ctx=6712, 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=180646: Fri Oct 2 09:21:37 2026 read: IOPS=13, BW=54.6KiB/s (55.0kB/s)(5940KiB/108691msec) clat (usec): min=39, max=338630, avg=39281.01, stdev=25445.23 lat (usec): min=39, max=338631, avg=39292.26, stdev=25459.08 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 11994], 10.00th=[ 16319], 20.00th=[ 20841], | 30.00th=[ 25035], 40.00th=[ 28967], 50.00th=[ 34866], 60.00th=[ 39584], | 70.00th=[ 45876], 80.00th=[ 55313], 90.00th=[ 67634], 95.00th=[ 82314], | 99.00th=[124257], 99.50th=[145753], 99.90th=[210764], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 6, max= 119, per=25.45%, avg=54.71, stdev=20.05, samples=213 iops : min= 1, max= 29, avg=13.08, stdev= 5.04, samples=213 write: IOPS=14, BW=58.4KiB/s (59.8kB/s)(6348KiB/108691msec); 0 zone resets clat (usec): min=1028, max=1302.3k, avg=31421.52, stdev=45179.76 lat (usec): min=1030, max=1302.4k, avg=31424.49, stdev=45181.01 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1287], 10.00th=[ 1778], | 20.00th=[ 3654], 30.00th=[ 5997], 40.00th=[ 13435], | 50.00th=[ 22414], 60.00th=[ 29230], 70.00th=[ 38536], | 80.00th=[ 53216], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[ 135267], 99.50th=[ 162530], 99.90th=[ 274727], | 99.95th=[1300235], 99.99th=[1300235] bw ( KiB/s): min= 6, max= 143, per=25.98%, avg=58.46, stdev=24.22, samples=213 iops : min= 1, max= 35, avg=14.02, stdev= 6.09, samples=213 lat (usec) : 50=0.23%, 100=1.33%, 250=0.23%, 500=0.07%, 750=0.03% lat (msec) : 2=6.05%, 4=5.21%, 10=7.78%, 20=11.88%, 50=43.16% lat (msec) : 100=20.93%, 250=2.96%, 500=0.10%, 2000=0.03% cpu : usr=0.08%, sys=5.67%, ctx=6671, 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=180647: Fri Oct 2 09:21:37 2026 read: IOPS=13, BW=54.9KiB/s (56.2kB/s)(6028KiB/109789msec) clat (usec): min=35, max=273738, avg=38813.94, stdev=25882.58 lat (usec): min=35, max=273739, avg=38816.27, stdev=25882.78 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 7898], 10.00th=[ 15139], 20.00th=[ 20317], | 30.00th=[ 24249], 40.00th=[ 29230], 50.00th=[ 33424], 60.00th=[ 39584], | 70.00th=[ 46400], 80.00th=[ 54789], 90.00th=[ 68682], 95.00th=[ 82314], | 99.00th=[125305], 99.50th=[164627], 99.90th=[231736], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 112, per=25.66%, avg=55.17, stdev=20.84, samples=214 iops : min= 1, max= 28, avg=13.20, stdev= 5.24, samples=214 write: IOPS=14, BW=57.0KiB/s (58.4kB/s)(6260KiB/109789msec); 0 zone resets clat (usec): min=1020, max=1423.6k, avg=32470.43, stdev=48522.82 lat (usec): min=1022, max=1423.7k, avg=32475.67, stdev=48522.05 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1319], 10.00th=[ 1795], | 20.00th=[ 3490], 30.00th=[ 6063], 40.00th=[ 14484], | 50.00th=[ 22676], 60.00th=[ 30016], 70.00th=[ 40633], | 80.00th=[ 54789], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[ 154141], 99.50th=[ 177210], 99.90th=[ 265290], | 99.95th=[1417675], 99.99th=[1417675] bw ( KiB/s): min= 7, max= 119, per=25.47%, avg=57.31, stdev=22.95, samples=214 iops : min= 1, max= 29, avg=13.73, stdev= 5.77, samples=214 lat (usec) : 50=0.29%, 100=1.66%, 250=0.23%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.76%, 4=5.79%, 10=7.29%, 20=11.75%, 50=43.13% lat (msec) : 100=20.48%, 250=3.39%, 500=0.07%, 2000=0.03% cpu : usr=0.09%, sys=5.48%, ctx=6658, 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=180648: Fri Oct 2 09:21:37 2026 read: IOPS=13, BW=54.4KiB/s (55.7kB/s)(6052KiB/111294msec) clat (usec): min=33, max=222499, avg=40554.11, stdev=26347.15 lat (usec): min=33, max=222501, avg=40558.59, stdev=26349.17 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 9110], 10.00th=[ 14877], 20.00th=[ 20317], | 30.00th=[ 25035], 40.00th=[ 30278], 50.00th=[ 35914], 60.00th=[ 41681], | 70.00th=[ 49546], 80.00th=[ 58459], 90.00th=[ 71828], 95.00th=[ 87557], | 99.00th=[126354], 99.50th=[166724], 99.90th=[217056], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 15, max= 119, per=25.38%, avg=54.56, stdev=19.22, samples=217 iops : min= 3, max= 29, avg=13.04, stdev= 4.86, samples=217 write: IOPS=14, BW=56.0KiB/s (57.4kB/s)(6236KiB/111294msec); 0 zone resets clat (usec): min=961, max=1412.2k, avg=31761.88, stdev=47771.67 lat (usec): min=962, max=1412.2k, avg=31765.33, stdev=47772.52 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1270], 10.00th=[ 1713], | 20.00th=[ 3556], 30.00th=[ 6194], 40.00th=[ 12649], | 50.00th=[ 22414], 60.00th=[ 30016], 70.00th=[ 39060], | 80.00th=[ 53216], 90.00th=[ 77071], 95.00th=[ 96994], | 99.00th=[ 143655], 99.50th=[ 166724], 99.90th=[ 246416], | 99.95th=[1417675], 99.99th=[1417675] bw ( KiB/s): min= 8, max= 159, per=25.06%, avg=56.39, stdev=24.44, samples=216 iops : min= 2, max= 39, avg=13.50, stdev= 6.14, samples=216 lat (usec) : 50=0.33%, 100=1.86%, 250=0.03%, 1000=0.07% lat (msec) : 2=5.89%, 4=5.50%, 10=7.55%, 20=11.85%, 50=41.37% lat (msec) : 100=22.07%, 250=3.45%, 2000=0.03% cpu : usr=0.08%, sys=5.58%, ctx=6796, 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=216KiB/s (221kB/s), 54.4KiB/s-54.9KiB/s (55.7kB/s-56.2kB/s), io=23.4MiB (24.6MB), run=108691-111294msec WRITE: bw=226KiB/s (231kB/s), 56.0KiB/s-58.4KiB/s (57.4kB/s-59.8kB/s), io=24.6MiB (25.7MB), run=108691-111294msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180649: Fri Oct 2 09:22:18 2026 read: IOPS=9, BW=39.4KiB/s (40.3kB/s)(5992KiB/152092msec) clat (msec): min=5, max=1498, avg=40.03, stdev=50.97 lat (msec): min=5, max=1498, avg=40.03, stdev=50.97 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 58], 90.00th=[ 87], 95.00th=[ 111], | 99.00th=[ 171], 99.50th=[ 211], 99.90th=[ 309], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 7, max= 134, per=25.62%, avg=40.23, stdev=25.07, samples=291 iops : min= 1, max= 33, avg= 9.44, stdev= 6.30, samples=291 write: IOPS=10, BW=41.4KiB/s (42.4kB/s)(6296KiB/152092msec); 0 zone resets clat (msec): min=7, max=296, avg=58.36, stdev=35.45 lat (msec): min=7, max=296, avg=58.36, stdev=35.45 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 36], 40.00th=[ 41], 50.00th=[ 49], 60.00th=[ 57], | 70.00th=[ 68], 80.00th=[ 85], 90.00th=[ 108], 95.00th=[ 128], | 99.00th=[ 171], 99.50th=[ 197], 99.90th=[ 251], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 119, per=25.15%, avg=41.24, stdev=22.23, samples=298 iops : min= 1, max= 29, avg= 9.69, stdev= 5.58, samples=298 lat (msec) : 10=2.44%, 20=15.85%, 50=45.64%, 100=25.85%, 250=10.12% lat (msec) : 500=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.89%, ctx=4776, 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=180650: Fri Oct 2 09:22:18 2026 read: IOPS=9, BW=39.2KiB/s (40.2kB/s)(5940KiB/151364msec) clat (msec): min=5, max=1396, avg=39.01, stdev=47.47 lat (msec): min=5, max=1396, avg=39.01, stdev=47.47 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 55], 90.00th=[ 85], 95.00th=[ 110], | 99.00th=[ 148], 99.50th=[ 167], 99.90th=[ 279], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 153, per=25.68%, avg=40.32, stdev=25.66, samples=287 iops : min= 1, max= 38, avg= 9.47, stdev= 6.46, samples=287 write: IOPS=10, BW=41.9KiB/s (42.9kB/s)(6348KiB/151364msec); 0 zone resets clat (msec): min=9, max=340, avg=58.63, stdev=39.49 lat (msec): min=9, max=340, avg=58.64, stdev=39.49 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 68], 80.00th=[ 84], 90.00th=[ 109], 95.00th=[ 136], | 99.00th=[ 192], 99.50th=[ 284], 99.90th=[ 309], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 126, per=25.53%, avg=41.86, stdev=23.01, samples=295 iops : min= 1, max= 31, avg= 9.85, stdev= 5.79, samples=295 lat (msec) : 10=2.34%, 20=16.76%, 50=46.32%, 100=24.71%, 250=9.54% lat (msec) : 500=0.29%, 2000=0.03% cpu : usr=0.07%, sys=1.91%, ctx=4751, 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=180651: Fri Oct 2 09:22:18 2026 read: IOPS=9, BW=39.5KiB/s (40.4kB/s)(6028KiB/152701msec) clat (msec): min=5, max=278, avg=39.15, stdev=34.46 lat (msec): min=5, max=278, avg=39.15, stdev=34.46 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 41], 80.00th=[ 57], 90.00th=[ 84], 95.00th=[ 111], | 99.00th=[ 165], 99.50th=[ 203], 99.90th=[ 239], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 7, max= 143, per=25.13%, avg=39.45, stdev=24.53, samples=298 iops : min= 1, max= 35, avg= 9.24, stdev= 6.15, samples=298 write: IOPS=10, BW=40.0KiB/s (41.0kB/s)(6260KiB/152701msec); 0 zone resets clat (msec): min=12, max=1402, avg=59.63, stdev=52.43 lat (msec): min=12, max=1402, avg=59.63, stdev=52.43 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 68], 80.00th=[ 85], 90.00th=[ 113], 95.00th=[ 136], | 99.00th=[ 194], 99.50th=[ 253], 99.90th=[ 342], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 119, per=24.82%, avg=40.70, stdev=24.10, samples=300 iops : min= 1, max= 29, avg= 9.56, stdev= 6.05, samples=300 lat (msec) : 10=2.83%, 20=15.10%, 50=47.43%, 100=24.09%, 250=10.25% lat (msec) : 500=0.26%, 2000=0.03% cpu : usr=0.06%, sys=1.87%, ctx=4913, 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=180652: Fri Oct 2 09:22:18 2026 read: IOPS=10, BW=40.3KiB/s (41.3kB/s)(6052KiB/150197msec) clat (msec): min=5, max=281, avg=37.80, stdev=32.57 lat (msec): min=5, max=281, avg=37.80, stdev=32.57 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 54], 90.00th=[ 81], 95.00th=[ 105], | 99.00th=[ 153], 99.50th=[ 171], 99.90th=[ 275], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 143, per=26.04%, avg=40.88, stdev=25.23, samples=289 iops : min= 1, max= 35, avg= 9.61, stdev= 6.33, samples=289 write: IOPS=10, BW=41.5KiB/s (42.5kB/s)(6236KiB/150197msec); 0 zone resets clat (msec): min=10, max=1398, avg=59.43, stdev=50.99 lat (msec): min=10, max=1398, avg=59.44, stdev=51.00 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 47], 60.00th=[ 56], | 70.00th=[ 68], 80.00th=[ 83], 90.00th=[ 109], 95.00th=[ 131], | 99.00th=[ 201], 99.50th=[ 251], 99.90th=[ 313], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 7, max= 119, per=25.15%, avg=41.25, stdev=22.52, samples=295 iops : min= 1, max= 29, avg= 9.70, stdev= 5.68, samples=295 lat (msec) : 10=2.31%, 20=15.53%, 50=47.59%, 100=25.23%, 250=8.95% lat (msec) : 500=0.36%, 2000=0.03% cpu : usr=0.05%, sys=1.87%, ctx=4645, 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), 39.2KiB/s-40.3KiB/s (40.2kB/s-41.3kB/s), io=23.4MiB (24.6MB), run=150197-152701msec WRITE: bw=165KiB/s (169kB/s), 40.0KiB/s-41.9KiB/s (41.0kB/s-42.9kB/s), io=24.6MiB (25.7MB), run=150197-152701msec 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=180694: Fri Oct 2 09:22:55 2026 read: IOPS=16, BW=259KiB/s (265kB/s)(5920KiB/22834msec) clat (usec): min=41, max=221420, avg=34348.48, stdev=27274.15 lat (usec): min=41, max=221422, avg=34350.25, stdev=27273.99 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 110], 20.00th=[ 17433], | 30.00th=[ 22676], 40.00th=[ 25822], 50.00th=[ 30016], 60.00th=[ 33817], | 70.00th=[ 40109], 80.00th=[ 47973], 90.00th=[ 61080], 95.00th=[ 74974], | 99.00th=[147850], 99.50th=[206570], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 127, max= 446, per=28.84%, avg=260.18, stdev=81.12, samples=45 iops : min= 7, max= 27, avg=15.56, stdev= 5.08, samples=45 write: IOPS=17, BW=279KiB/s (286kB/s)(6368KiB/22834msec); 0 zone resets clat (usec): min=1323, max=156565, avg=25273.97, stdev=25673.52 lat (usec): min=1325, max=156567, avg=25275.87, stdev=25673.54 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 2024], 10.00th=[ 2966], 20.00th=[ 4752], | 30.00th=[ 6783], 40.00th=[ 10421], 50.00th=[ 16712], 60.00th=[ 25297], | 70.00th=[ 31327], 80.00th=[ 40633], 90.00th=[ 58983], 95.00th=[ 73925], | 99.00th=[116917], 99.50th=[147850], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 62, max= 601, per=29.45%, avg=279.47, stdev=122.71, samples=45 iops : min= 3, max= 37, avg=16.78, stdev= 7.68, samples=45 lat (usec) : 50=0.52%, 100=3.91%, 250=1.17%, 500=0.26%, 750=0.13% lat (msec) : 2=2.08%, 4=5.86%, 10=12.76%, 20=11.98%, 50=44.92% lat (msec) : 100=13.80%, 250=2.60% cpu : usr=0.09%, sys=7.41%, ctx=1688, 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=180695: Fri Oct 2 09:22:55 2026 read: IOPS=13, BW=221KiB/s (226kB/s)(5744KiB/25990msec) clat (usec): min=35, max=200460, avg=37394.38, stdev=25844.64 lat (usec): min=35, max=200461, avg=37395.99, stdev=25844.74 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 2900], 20.00th=[ 19792], | 30.00th=[ 25035], 40.00th=[ 29230], 50.00th=[ 32637], 60.00th=[ 38011], | 70.00th=[ 44303], 80.00th=[ 52167], 90.00th=[ 68682], 95.00th=[ 80217], | 99.00th=[122160], 99.50th=[173016], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 93, max= 479, per=24.73%, avg=223.08, stdev=86.10, samples=51 iops : min= 5, max= 29, avg=13.20, stdev= 5.41, samples=51 write: IOPS=15, BW=252KiB/s (258kB/s)(6544KiB/25990msec); 0 zone resets clat (usec): min=1397, max=161471, avg=30592.70, stdev=29194.28 lat (usec): min=1398, max=161472, avg=30595.17, stdev=29194.08 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2311], 10.00th=[ 3261], 20.00th=[ 5080], | 30.00th=[ 8455], 40.00th=[ 14877], 50.00th=[ 22676], 60.00th=[ 30802], | 70.00th=[ 39060], 80.00th=[ 50070], 90.00th=[ 70779], 95.00th=[ 88605], | 99.00th=[129500], 99.50th=[131597], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 95, max= 510, per=26.53%, avg=251.78, stdev=80.94, samples=51 iops : min= 5, max= 31, avg=15.02, stdev= 5.14, samples=51 lat (usec) : 50=0.26%, 100=3.26%, 250=0.78%, 750=0.13% lat (msec) : 2=1.69%, 4=7.16%, 10=8.98%, 20=11.20%, 50=45.70% lat (msec) : 100=17.45%, 250=3.39% cpu : usr=0.08%, sys=6.85%, ctx=1805, 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=180696: Fri Oct 2 09:22:55 2026 read: IOPS=14, BW=236KiB/s (241kB/s)(6256KiB/26548msec) clat (usec): min=41, max=152385, avg=38200.53, stdev=23884.41 lat (usec): min=41, max=152386, avg=38201.86, stdev=23884.46 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 63], 10.00th=[ 9241], 20.00th=[ 20841], | 30.00th=[ 25560], 40.00th=[ 30278], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 47449], 80.00th=[ 55313], 90.00th=[ 67634], 95.00th=[ 82314], | 99.00th=[106431], 99.50th=[141558], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 63, max= 446, per=26.25%, avg=236.73, stdev=73.42, samples=52 iops : min= 3, max= 27, avg=14.06, stdev= 4.63, samples=52 write: IOPS=14, BW=227KiB/s (233kB/s)(6032KiB/26548msec); 0 zone resets clat (usec): min=1497, max=139791, avg=30629.51, stdev=27979.76 lat (usec): min=1499, max=139793, avg=30632.28, stdev=27980.37 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1942], 10.00th=[ 2638], 20.00th=[ 5145], | 30.00th=[ 8717], 40.00th=[ 17695], 50.00th=[ 24511], 60.00th=[ 31065], | 70.00th=[ 41157], 80.00th=[ 52691], 90.00th=[ 68682], 95.00th=[ 84411], | 99.00th=[119014], 99.50th=[135267], 99.90th=[139461], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 31, max= 478, per=23.66%, avg=224.54, stdev=108.10, samples=52 iops : min= 1, max= 29, avg=13.29, stdev= 6.83, samples=52 lat (usec) : 50=0.13%, 100=4.04%, 250=0.52% lat (msec) : 2=2.99%, 4=5.34%, 10=8.33%, 20=8.85%, 50=45.83% lat (msec) : 100=21.74%, 250=2.21% cpu : usr=0.06%, sys=7.05%, ctx=1825, 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=180697: Fri Oct 2 09:22:55 2026 read: IOPS=14, BW=229KiB/s (234kB/s)(6032KiB/26346msec) clat (usec): min=40, max=216281, avg=36434.45, stdev=27080.69 lat (usec): min=41, max=216282, avg=36436.14, stdev=27080.63 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 60], 10.00th=[ 99], 20.00th=[ 18744], | 30.00th=[ 24249], 40.00th=[ 28705], 50.00th=[ 32375], 60.00th=[ 38536], | 70.00th=[ 43779], 80.00th=[ 52167], 90.00th=[ 68682], 95.00th=[ 80217], | 99.00th=[131597], 99.50th=[168821], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 63, max= 445, per=25.41%, avg=229.17, stdev=86.71, samples=52 iops : min= 3, max= 27, avg=13.58, stdev= 5.49, samples=52 write: IOPS=14, BW=237KiB/s (243kB/s)(6256KiB/26346msec); 0 zone resets clat (usec): min=1651, max=199748, avg=32115.75, stdev=32123.46 lat (usec): min=1652, max=199750, avg=32118.68, stdev=32122.79 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2409], 10.00th=[ 3228], 20.00th=[ 5604], | 30.00th=[ 8717], 40.00th=[ 15008], 50.00th=[ 21103], 60.00th=[ 31851], | 70.00th=[ 41681], 80.00th=[ 55313], 90.00th=[ 74974], 95.00th=[ 90702], | 99.00th=[141558], 99.50th=[198181], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 126, max= 479, per=25.06%, avg=237.85, stdev=88.54, samples=52 iops : min= 7, max= 29, avg=14.13, stdev= 5.50, samples=52 lat (usec) : 50=0.39%, 100=4.56%, 250=0.65%, 750=0.13%, 1000=0.39% lat (msec) : 2=1.82%, 4=5.47%, 10=9.38%, 20=13.67%, 50=41.02% lat (msec) : 100=19.92%, 250=2.60% cpu : usr=0.04%, sys=6.91%, ctx=1763, 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=902KiB/s (924kB/s), 221KiB/s-259KiB/s (226kB/s-265kB/s), io=23.4MiB (24.5MB), run=22834-26548msec WRITE: bw=949KiB/s (972kB/s), 227KiB/s-279KiB/s (233kB/s-286kB/s), io=24.6MiB (25.8MB), run=22834-26548msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180689: Fri Oct 2 09:23:04 2026 read: IOPS=10, BW=165KiB/s (169kB/s)(5920KiB/35837msec) clat (msec): min=6, max=211, avg=37.05, stdev=31.31 lat (msec): min=6, max=211, avg=37.06, stdev=31.31 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 52], 90.00th=[ 87], 95.00th=[ 104], | 99.00th=[ 153], 99.50th=[ 190], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 31, max= 544, per=24.69%, avg=164.44, stdev=107.04, samples=71 iops : min= 1, max= 34, avg= 9.54, stdev= 6.76, samples=71 write: IOPS=11, BW=178KiB/s (182kB/s)(6368KiB/35837msec); 0 zone resets clat (msec): min=13, max=343, avg=55.29, stdev=38.84 lat (msec): min=13, max=343, avg=55.29, stdev=38.84 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 35], 50.00th=[ 41], 60.00th=[ 50], | 70.00th=[ 67], 80.00th=[ 85], 90.00th=[ 102], 95.00th=[ 132], | 99.00th=[ 178], 99.50th=[ 230], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 510, per=25.23%, avg=176.89, stdev=105.43, samples=71 iops : min= 1, max= 31, avg=10.32, stdev= 6.71, samples=71 lat (msec) : 10=2.34%, 20=18.10%, 50=49.22%, 100=22.01%, 250=8.20% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=2.13%, ctx=1210, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180690: Fri Oct 2 09:23:04 2026 read: IOPS=9, BW=160KiB/s (164kB/s)(5744KiB/35941msec) clat (msec): min=6, max=204, avg=34.74, stdev=30.29 lat (msec): min=6, max=204, avg=34.74, stdev=30.29 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 50], 90.00th=[ 78], 95.00th=[ 110], | 99.00th=[ 140], 99.50th=[ 150], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 31, max= 446, per=24.37%, avg=162.32, stdev=104.87, samples=69 iops : min= 1, max= 27, avg= 9.39, stdev= 6.70, samples=69 write: IOPS=11, BW=182KiB/s (186kB/s)(6544KiB/35941msec); 0 zone resets clat (msec): min=11, max=345, avg=57.11, stdev=40.70 lat (msec): min=11, max=345, avg=57.11, stdev=40.70 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 37], 50.00th=[ 44], 60.00th=[ 55], | 70.00th=[ 65], 80.00th=[ 87], 90.00th=[ 111], 95.00th=[ 136], | 99.00th=[ 205], 99.50th=[ 209], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 544, per=26.00%, avg=182.24, stdev=110.05, samples=70 iops : min= 1, max= 34, avg=10.64, stdev= 7.02, samples=70 lat (msec) : 10=1.82%, 20=21.74%, 50=43.62%, 100=22.79%, 250=9.90% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=2.16%, ctx=1258, 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=180691: Fri Oct 2 09:23:04 2026 read: IOPS=10, BW=175KiB/s (179kB/s)(6256KiB/35790msec) clat (msec): min=5, max=214, avg=35.97, stdev=31.94 lat (msec): min=5, max=214, avg=35.97, stdev=31.94 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 37], 80.00th=[ 52], 90.00th=[ 79], 95.00th=[ 110], | 99.00th=[ 159], 99.50th=[ 186], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 31, max= 576, per=26.24%, avg=174.73, stdev=121.53, samples=71 iops : min= 1, max= 36, avg=10.18, stdev= 7.68, samples=71 write: IOPS=10, BW=169KiB/s (173kB/s)(6032KiB/35790msec); 0 zone resets clat (msec): min=13, max=226, avg=57.34, stdev=38.66 lat (msec): min=13, max=226, avg=57.34, stdev=38.66 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 39], 50.00th=[ 46], 60.00th=[ 55], | 70.00th=[ 65], 80.00th=[ 82], 90.00th=[ 111], 95.00th=[ 136], | 99.00th=[ 201], 99.50th=[ 220], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 31, max= 512, per=23.91%, avg=167.59, stdev=98.46, samples=71 iops : min= 1, max= 32, avg= 9.73, stdev= 6.30, samples=71 lat (msec) : 10=2.08%, 20=20.44%, 50=44.66%, 100=22.66%, 250=10.16% cpu : usr=0.05%, sys=2.19%, ctx=1188, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180692: Fri Oct 2 09:23:04 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(6032KiB/35551msec) clat (msec): min=7, max=291, avg=36.19, stdev=33.57 lat (msec): min=7, max=291, avg=36.20, stdev=33.57 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 51], 90.00th=[ 75], 95.00th=[ 106], | 99.00th=[ 148], 99.50th=[ 264], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 30, max= 542, per=25.10%, avg=167.19, stdev=109.90, samples=70 iops : min= 1, max= 33, avg= 9.70, stdev= 7.00, samples=70 write: IOPS=10, BW=176KiB/s (180kB/s)(6256KiB/35551msec); 0 zone resets clat (msec): min=13, max=196, avg=55.82, stdev=34.85 lat (msec): min=13, max=196, avg=55.82, stdev=34.85 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 36], 50.00th=[ 44], 60.00th=[ 52], | 70.00th=[ 68], 80.00th=[ 86], 90.00th=[ 106], 95.00th=[ 130], | 99.00th=[ 167], 99.50th=[ 180], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 31, max= 414, per=25.05%, avg=175.62, stdev=93.31, samples=69 iops : min= 1, max= 25, avg=10.23, stdev= 5.92, samples=69 lat (msec) : 10=2.08%, 20=18.62%, 50=47.01%, 100=23.18%, 250=8.85% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=2.06%, ctx=1160, 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=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=666KiB/s (682kB/s), 160KiB/s-175KiB/s (164kB/s-179kB/s), io=23.4MiB (24.5MB), run=35551-35941msec WRITE: bw=701KiB/s (718kB/s), 169KiB/s-182KiB/s (173kB/s-186kB/s), io=24.6MiB (25.8MB), run=35551-35941msec 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=180713: Fri Oct 2 09:23:20 2026 read: IOPS=1, BW=1208KiB/s (1237kB/s)(7168KiB/5935msec) clat (usec): min=429, max=2218.6k, avg=649169.57, stdev=931215.71 lat (usec): min=431, max=2218.6k, avg=649170.86, stdev=931215.89 clat percentiles (usec): | 1.00th=[ 429], 5.00th=[ 429], 10.00th=[ 429], | 20.00th=[ 1860], 30.00th=[ 93848], 40.00th=[ 93848], | 50.00th=[ 196084], 60.00th=[ 267387], 70.00th=[ 267387], | 80.00th=[1769997], 90.00th=[2231370], 95.00th=[2231370], | 99.00th=[2231370], 99.50th=[2231370], 99.90th=[2231370], | 99.95th=[2231370], 99.99th=[2231370] bw ( KiB/s): min= 2027, max= 4055, per=100.00%, avg=2947.75, stdev=1067.90, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=863KiB/s (883kB/s)(5120KiB/5935msec); 0 zone resets clat (msec): min=148, max=501, avg=264.78, stdev=144.75 lat (msec): min=149, max=501, avg=264.85, stdev=144.75 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 211], 60.00th=[ 211], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 1835, max= 4079, per=66.36%, avg=2647.00, stdev=1243.86, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 100=8.33%, 250=33.33%, 500=16.67%, 750=8.33% lat (msec) : 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=10.43%, ctx=850, 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=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=180714: Fri Oct 2 09:23:20 2026 read: IOPS=0, BW=285KiB/s (292kB/s)(2048KiB/7186msec) clat (usec): min=569, max=151488, avg=76029.04, stdev=106715.25 lat (usec): min=570, max=151488, avg=76029.98, stdev=106715.17 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[ 570], 60.00th=[152044], | 70.00th=[152044], 80.00th=[152044], 90.00th=[152044], 95.00th=[152044], | 99.00th=[152044], 99.50th=[152044], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 1928, max= 2048, per=69.78%, avg=1988.00, stdev=84.85, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1425KiB/s (1459kB/s)(10.0MiB/7186msec); 0 zone resets clat (msec): min=121, max=2271, avg=680.24, stdev=784.30 lat (msec): min=121, max=2271, avg=680.76, stdev=783.99 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 129], | 30.00th=[ 190], 40.00th=[ 192], 50.00th=[ 201], 60.00th=[ 305], | 70.00th=[ 380], 80.00th=[ 1318], 90.00th=[ 1703], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 1835, max= 6107, per=75.80%, avg=3023.83, stdev=1730.05, samples=6 iops : min= 1, max= 5, avg= 2.17, stdev= 1.60, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=16.67%, 2000=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=8.24%, ctx=177, 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=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=180715: Fri Oct 2 09:23:20 2026 read: IOPS=1, BW=1064KiB/s (1090kB/s)(6144KiB/5774msec) clat (usec): min=1482, max=167537, avg=66241.53, stdev=75863.01 lat (usec): min=1483, max=167538, avg=66242.68, stdev=75863.05 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1483], 10.00th=[ 1483], 20.00th=[ 1762], | 30.00th=[ 1762], 40.00th=[ 1909], 50.00th=[ 1909], 60.00th=[ 82314], | 70.00th=[141558], 80.00th=[141558], 90.00th=[166724], 95.00th=[166724], | 99.00th=[166724], 99.50th=[166724], 99.90th=[166724], 99.95th=[166724], | 99.99th=[166724] bw ( KiB/s): min= 2039, max= 8110, per=100.00%, avg=5074.50, stdev=4292.85, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 write: IOPS=1, BW=1064KiB/s (1090kB/s)(6144KiB/5774msec); 0 zone resets clat (msec): min=131, max=3967, avg=856.31, stdev=1526.92 lat (msec): min=131, max=3967, avg=856.39, stdev=1526.92 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 230], 50.00th=[ 230], 60.00th=[ 305], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 3977], 95.00th=[ 3977], | 99.00th=[ 3977], 99.50th=[ 3977], 99.90th=[ 3977], 99.95th=[ 3977], | 99.99th=[ 3977] bw ( KiB/s): min= 2039, max= 4087, per=85.08%, avg=3393.67, stdev=1173.28, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (msec) : 2=25.00%, 100=8.33%, 250=41.67%, 500=16.67%, >=2000=8.33% cpu : usr=0.02%, sys=8.05%, ctx=168, 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=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=180716: Fri Oct 2 09:23:20 2026 read: IOPS=0, BW=835KiB/s (855kB/s)(5120KiB/6129msec) clat (usec): min=478, max=199472, avg=45188.18, stdev=86753.22 lat (usec): min=480, max=199473, avg=45189.45, stdev=86753.28 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 478], | 30.00th=[ 510], 40.00th=[ 510], 50.00th=[ 2737], 60.00th=[ 2737], | 70.00th=[ 22676], 80.00th=[ 22676], 90.00th=[200279], 95.00th=[200279], | 99.00th=[200279], 99.50th=[200279], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1170KiB/s (1198kB/s)(7168KiB/6129msec); 0 zone resets clat (msec): min=169, max=3817, avg=803.34, stdev=1343.33 lat (msec): min=169, max=3817, avg=803.40, stdev=1343.32 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 176], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 226], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 726], 90.00th=[ 3809], 95.00th=[ 3809], | 99.00th=[ 3809], 99.50th=[ 3809], 99.90th=[ 3809], 99.95th=[ 3809], | 99.99th=[ 3809] bw ( KiB/s): min= 2027, max= 4096, per=74.18%, avg=2959.00, stdev=1081.04, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 4=8.33%, 50=8.33%, 250=41.67%, 500=8.33%, 750=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=8.14%, ctx=120, 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=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=2850KiB/s (2918kB/s), 285KiB/s-1208KiB/s (292kB/s-1237kB/s), io=20.0MiB (20.0MB), run=5774-7186msec WRITE: bw=3990KiB/s (4086kB/s), 863KiB/s-1425KiB/s (883kB/s-1459kB/s), io=28.0MiB (29.4MB), run=5774-7186msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180708: Fri Oct 2 09:23:20 2026 read: IOPS=0, BW=903KiB/s (925kB/s)(7168KiB/7935msec) clat (msec): min=117, max=3244, avg=989.91, stdev=1235.79 lat (msec): min=117, max=3244, avg=989.91, stdev=1235.79 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 120], | 30.00th=[ 159], 40.00th=[ 159], 50.00th=[ 477], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 2198], 90.00th=[ 3239], 95.00th=[ 3239], | 99.00th=[ 3239], 99.50th=[ 3239], 99.90th=[ 3239], 99.95th=[ 3239], | 99.99th=[ 3239] bw ( KiB/s): min= 2000, max= 4031, per=94.40%, avg=2424.20, stdev=898.40, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=0, BW=645KiB/s (661kB/s)(5120KiB/7935msec); 0 zone resets clat (msec): min=63, max=264, avg=157.89, stdev=76.20 lat (msec): min=63, max=264, avg=157.97, stdev=76.21 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 64], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 159], 60.00th=[ 159], | 70.00th=[ 188], 80.00th=[ 188], 90.00th=[ 266], 95.00th=[ 266], | 99.00th=[ 266], 99.50th=[ 266], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 2027, max= 4031, per=93.26%, avg=3352.67, stdev=1148.17, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, >=2000=16.67% cpu : usr=0.00%, sys=2.74%, ctx=96, 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=180709: Fri Oct 2 09:23:20 2026 read: IOPS=0, BW=257KiB/s (263kB/s)(2048KiB/7960msec) clat (msec): min=110, max=221, avg=165.80, stdev=78.31 lat (msec): min=110, max=221, avg=165.80, stdev=78.31 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 111], 10.00th=[ 111], 20.00th=[ 111], | 30.00th=[ 111], 40.00th=[ 111], 50.00th=[ 111], 60.00th=[ 222], | 70.00th=[ 222], 80.00th=[ 222], 90.00th=[ 222], 95.00th=[ 222], | 99.00th=[ 222], 99.50th=[ 222], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 1365, max= 2043, per=66.36%, avg=1704.00, stdev=479.42, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1286KiB/s (1317kB/s)(10.0MiB/7960msec); 0 zone resets clat (msec): min=88, max=3824, avg=732.78, stdev=1106.79 lat (msec): min=88, max=3824, avg=732.87, stdev=1106.79 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 146], | 30.00th=[ 174], 40.00th=[ 338], 50.00th=[ 347], 60.00th=[ 485], | 70.00th=[ 584], 80.00th=[ 659], 90.00th=[ 684], 95.00th=[ 3809], | 99.00th=[ 3809], 99.50th=[ 3809], 99.90th=[ 3809], 99.95th=[ 3809], | 99.99th=[ 3809] bw ( KiB/s): min= 2027, max= 4031, per=83.95%, avg=3018.00, stdev=1078.44, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=25.00%, >=2000=8.33% cpu : usr=0.01%, sys=3.98%, ctx=109, 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=180710: Fri Oct 2 09:23:20 2026 read: IOPS=0, BW=794KiB/s (813kB/s)(6144KiB/7739msec) clat (msec): min=93, max=525, avg=181.78, stdev=169.02 lat (msec): min=93, max=525, avg=181.78, stdev=169.02 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 94], | 30.00th=[ 94], 40.00th=[ 125], 50.00th=[ 125], 60.00th=[ 126], | 70.00th=[ 128], 80.00th=[ 128], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 2015, max= 6059, per=100.00%, avg=3372.33, stdev=2326.76, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=0, BW=794KiB/s (813kB/s)(6144KiB/7739msec); 0 zone resets clat (msec): min=113, max=5640, avg=1094.09, stdev=2229.10 lat (msec): min=113, max=5640, avg=1094.17, stdev=2229.10 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 118], | 30.00th=[ 118], 40.00th=[ 120], 50.00th=[ 120], 60.00th=[ 224], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 5671], 95.00th=[ 5671], | 99.00th=[ 5671], 99.50th=[ 5671], 99.90th=[ 5671], 99.95th=[ 5671], | 99.99th=[ 5671] bw ( KiB/s): min= 2007, max= 3976, per=69.66%, avg=2504.25, stdev=981.18, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=58.33%, 500=8.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=2.11%, ctx=62, 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=180712: Fri Oct 2 09:23:20 2026 read: IOPS=0, BW=642KiB/s (657kB/s)(5120KiB/7975msec) clat (msec): min=75, max=476, avg=300.22, stdev=204.99 lat (msec): min=75, max=476, avg=300.22, stdev=204.99 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 84], 40.00th=[ 84], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 2000, max= 2043, per=78.71%, avg=2021.25, stdev=18.23, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=0, BW=899KiB/s (920kB/s)(7168KiB/7975msec); 0 zone resets clat (msec): min=96, max=5266, avg=876.27, stdev=1936.15 lat (msec): min=96, max=5266, avg=876.46, stdev=1936.10 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 100], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 171], | 70.00th=[ 171], 80.00th=[ 201], 90.00th=[ 5269], 95.00th=[ 5269], | 99.00th=[ 5269], 99.50th=[ 5269], 99.90th=[ 5269], 99.95th=[ 5269], | 99.99th=[ 5269] bw ( KiB/s): min= 1391, max= 6083, per=100.00%, avg=3824.67, stdev=2350.91, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 lat (msec) : 100=33.33%, 250=33.33%, 500=25.00%, >=2000=8.33% cpu : usr=0.01%, sys=2.03%, ctx=93, 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=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=2568KiB/s (2630kB/s), 257KiB/s-903KiB/s (263kB/s-925kB/s), io=20.0MiB (20.0MB), run=7739-7975msec WRITE: bw=3595KiB/s (3682kB/s), 645KiB/s-1286KiB/s (661kB/s-1317kB/s), io=28.0MiB (29.4MB), run=7739-7975msec 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=180723: Fri Oct 2 09:23:32 2026 read: IOPS=1, BW=5694KiB/s (5831kB/s)(12.0MiB/2158msec) clat (msec): min=511, max=828, avg=670.51, stdev=158.48 lat (msec): min=511, max=828, avg=670.51, stdev=158.47 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 6032, max= 7968, per=98.23%, avg=7000.00, stdev=1368.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=14.51%, ctx=378, majf=0, minf=7 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=180724: Fri Oct 2 09:23:32 2026 read: IOPS=0, BW=1782KiB/s (1824kB/s)(4096KiB/2299msec) clat (nsec): min=612825k, max=612825k, avg=612825318.00, stdev= 0.00 lat (nsec): min=612828k, max=612828k, avg=612827668.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 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= 5818, max= 5818, per=81.64%, avg=5818.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3563KiB/s (3649kB/s)(8192KiB/2299msec); 0 zone resets clat (msec): min=742, max=871, avg=807.24, stdev=90.85 lat (msec): min=743, max=871, avg=807.50, stdev=90.95 clat percentiles (msec): | 1.00th=[ 743], 5.00th=[ 743], 10.00th=[ 743], 20.00th=[ 743], | 30.00th=[ 743], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 869], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7968, max= 7968, per=59.63%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=11.79%, ctx=142, 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=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=180725: Fri Oct 2 09:23:32 2026 write: IOPS=1, BW=5011KiB/s (5132kB/s)(12.0MiB/2452msec); 0 zone resets clat (msec): min=518, max=1046, avg=801.26, stdev=266.40 lat (msec): min=518, max=1047, avg=801.60, stdev=266.38 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 518], 10.00th=[ 518], 20.00th=[ 518], | 30.00th=[ 518], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 1045], 80.00th=[ 1045], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 8143, max= 8143, per=60.94%, avg=8143.00, 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=8.40%, ctx=90, majf=0, minf=7 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=180726: Fri Oct 2 09:23:32 2026 write: IOPS=1, BW=5968KiB/s (6111kB/s)(12.0MiB/2059msec); 0 zone resets clat (msec): min=420, max=1049, avg=641.28, stdev=353.91 lat (msec): min=421, max=1049, avg=641.56, stdev=353.90 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 456], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 6032, max= 8143, per=53.04%, avg=7087.50, stdev=1492.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.37%, ctx=55, 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 Run status group 0 (all jobs): READ: bw=7127KiB/s (7298kB/s), 1782KiB/s-5694KiB/s (1824kB/s-5831kB/s), io=16.0MiB (16.8MB), run=2158-2299msec WRITE: bw=13.0MiB/s (13.7MB/s), 3563KiB/s-5968KiB/s (3649kB/s-6111kB/s), io=32.0MiB (33.6MB), run=2059-2452msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180728: Fri Oct 2 09:23:32 2026 read: IOPS=1, BW=5118KiB/s (5241kB/s)(12.0MiB/2401msec) clat (msec): min=107, max=1307, avg=779.47, stdev=612.83 lat (msec): min=107, max=1307, avg=779.47, stdev=612.83 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 108], | 30.00th=[ 108], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.92%, ctx=46, 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=180729: Fri Oct 2 09:23:32 2026 read: IOPS=0, BW=1471KiB/s (1506kB/s)(4096KiB/2785msec) clat (nsec): min=1262.8M, max=1262.8M, avg=1262776390.00, stdev= 0.00 lat (nsec): min=1262.8M, max=1262.8M, avg=1262779120.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1267], 5.00th=[ 1267], 10.00th=[ 1267], 20.00th=[ 1267], | 30.00th=[ 1267], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2941KiB/s (3012kB/s)(8192KiB/2785msec); 0 zone resets clat (msec): min=675, max=819, avg=747.82, stdev=102.03 lat (msec): min=675, max=820, avg=748.11, stdev=101.99 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 818], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 8126, max= 8126, per=69.07%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.06%, ctx=41, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=180730: Fri Oct 2 09:23:32 2026 write: IOPS=1, BW=4618KiB/s (4729kB/s)(12.0MiB/2661msec); 0 zone resets clat (msec): min=202, max=1446, avg=868.06, stdev=626.69 lat (msec): min=203, max=1447, avg=868.54, stdev=626.48 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8094, max= 8175, per=69.14%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.38%, ctx=39, 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=180731: Fri Oct 2 09:23:32 2026 write: IOPS=1, BW=5908KiB/s (6049kB/s)(12.0MiB/2080msec); 0 zone resets clat (msec): min=643, max=705, avg=664.61, stdev=35.70 lat (msec): min=643, max=706, avg=664.99, stdev=35.78 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=[ 709], 80.00th=[ 709], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 8094, max= 8110, per=68.87%, avg=8102.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=5.77%, ctx=49, 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=5883KiB/s (6024kB/s), 1471KiB/s-5118KiB/s (1506kB/s-5241kB/s), io=16.0MiB (16.8MB), run=2401-2785msec WRITE: bw=11.5MiB/s (12.0MB/s), 2941KiB/s-5908KiB/s (3012kB/s-6049kB/s), io=32.0MiB (33.6MB), run=2080-2785msec