== sanity test 398b: DIO and buffer IO race ============== 05:07:14 (1784192834) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.60343 s, 7.6 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=179554: Thu Jul 16 05:09:46 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5992KiB/129356msec) clat (usec): min=28, max=1231.8k, avg=47199.31, stdev=44653.18 lat (usec): min=29, max=1231.8k, avg=47201.26, stdev=44653.64 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 11338], 10.00th=[ 16909], | 20.00th=[ 22676], 30.00th=[ 27657], 40.00th=[ 33162], | 50.00th=[ 39584], 60.00th=[ 46400], 70.00th=[ 54789], | 80.00th=[ 65274], 90.00th=[ 84411], 95.00th=[ 102237], | 99.00th=[ 177210], 99.50th=[ 206570], 99.90th=[ 274727], | 99.95th=[1233126], 99.99th=[1233126] bw ( KiB/s): min= 7, max= 102, per=25.01%, avg=46.27, stdev=19.15, samples=252 iops : min= 1, max= 25, avg=10.94, stdev= 4.81, samples=252 write: IOPS=12, BW=48.7KiB/s (49.8kB/s)(6296KiB/129356msec); 0 zone resets clat (usec): min=904, max=322618, avg=36887.12, stdev=38952.27 lat (usec): min=905, max=322619, avg=36893.95, stdev=38953.13 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1352], 10.00th=[ 1795], 20.00th=[ 4113], | 30.00th=[ 8291], 40.00th=[ 17433], 50.00th=[ 26608], 60.00th=[ 34866], | 70.00th=[ 46924], 80.00th=[ 63177], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[166724], 99.50th=[206570], 99.90th=[308282], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 7, max= 113, per=25.08%, avg=48.65, stdev=21.59, samples=252 iops : min= 1, max= 28, avg=11.54, stdev= 5.41, samples=252 lat (usec) : 50=0.29%, 100=1.53%, 250=0.23%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.76%, 4=4.23%, 10=6.80%, 20=10.45%, 50=39.32% lat (msec) : 100=24.61%, 250=6.48%, 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=5.06%, ctx=6458, 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=179555: Thu Jul 16 05:09:46 2026 read: IOPS=11, BW=46.8KiB/s (47.0kB/s)(5940KiB/126818msec) clat (usec): min=39, max=257312, avg=46912.24, stdev=33256.20 lat (usec): min=40, max=257314, avg=46917.66, stdev=33259.65 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 9110], 10.00th=[ 15795], 20.00th=[ 21890], | 30.00th=[ 27919], 40.00th=[ 33162], 50.00th=[ 39584], 60.00th=[ 47449], | 70.00th=[ 56886], 80.00th=[ 66847], 90.00th=[ 84411], 95.00th=[106431], | 99.00th=[173016], 99.50th=[198181], 99.90th=[238027], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 6, max= 103, per=25.38%, avg=46.95, stdev=19.47, samples=247 iops : min= 1, max= 25, avg=11.11, stdev= 4.90, samples=247 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(6348KiB/126818msec); 0 zone resets clat (usec): min=877, max=1261.2k, avg=35695.65, stdev=48332.86 lat (usec): min=878, max=1261.2k, avg=35702.40, stdev=48331.85 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1352], 10.00th=[ 1795], | 20.00th=[ 3720], 30.00th=[ 7308], 40.00th=[ 14484], | 50.00th=[ 23987], 60.00th=[ 32900], 70.00th=[ 43779], | 80.00th=[ 59507], 90.00th=[ 87557], 95.00th=[ 113771], | 99.00th=[ 166724], 99.50th=[ 175113], 99.90th=[ 304088], | 99.95th=[1266680], 99.99th=[1266680] bw ( KiB/s): min= 7, max= 142, per=25.88%, avg=50.20, stdev=22.58, samples=247 iops : min= 1, max= 35, avg=11.92, stdev= 5.68, samples=247 lat (usec) : 50=0.33%, 100=1.76%, 250=0.16%, 500=0.03%, 1000=0.03% lat (msec) : 2=6.15%, 4=4.72%, 10=7.23%, 20=11.13%, 50=36.98% lat (msec) : 100=24.58%, 250=6.80%, 500=0.07%, 2000=0.03% cpu : usr=0.09%, sys=5.24%, ctx=6414, 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=179556: Thu Jul 16 05:09:46 2026 read: IOPS=11, BW=47.0KiB/s (48.2kB/s)(6028KiB/128184msec) clat (usec): min=40, max=1358.1k, avg=46289.01, stdev=45106.10 lat (usec): min=41, max=1358.1k, avg=46297.81, stdev=45104.99 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 10159], 10.00th=[ 16581], | 20.00th=[ 22414], 30.00th=[ 27657], 40.00th=[ 32637], | 50.00th=[ 38536], 60.00th=[ 45876], 70.00th=[ 54264], | 80.00th=[ 65274], 90.00th=[ 85459], 95.00th=[ 101188], | 99.00th=[ 152044], 99.50th=[ 164627], 99.90th=[ 240124], | 99.95th=[1350566], 99.99th=[1350566] bw ( KiB/s): min= 6, max= 111, per=25.35%, avg=46.89, stdev=18.30, samples=251 iops : min= 1, max= 27, avg=11.10, stdev= 4.59, samples=251 write: IOPS=12, BW=48.8KiB/s (50.0kB/s)(6260KiB/128184msec); 0 zone resets clat (usec): min=957, max=350999, avg=37052.44, stdev=38117.02 lat (usec): min=958, max=351001, avg=37054.06, stdev=38117.05 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1319], 10.00th=[ 1483], 20.00th=[ 3621], | 30.00th=[ 7635], 40.00th=[ 16909], 50.00th=[ 27657], 60.00th=[ 37487], | 70.00th=[ 47973], 80.00th=[ 63701], 90.00th=[ 90702], 95.00th=[114820], | 99.00th=[160433], 99.50th=[179307], 99.90th=[287310], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 7, max= 117, per=25.09%, avg=48.67, stdev=21.27, samples=251 iops : min= 1, max= 29, avg=11.54, stdev= 5.35, samples=251 lat (usec) : 50=0.23%, 100=1.69%, 250=0.07%, 750=0.03%, 1000=0.07% lat (msec) : 2=6.71%, 4=4.13%, 10=6.35%, 20=9.64%, 50=39.26% lat (msec) : 100=25.33%, 250=6.41%, 500=0.07%, 2000=0.03% cpu : usr=0.07%, sys=5.16%, ctx=6486, 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=179557: Thu Jul 16 05:09:46 2026 read: IOPS=11, BW=47.2KiB/s (48.3kB/s)(6052KiB/128250msec) clat (usec): min=34, max=301855, avg=46775.12, stdev=31199.97 lat (usec): min=34, max=301857, avg=46777.24, stdev=31199.30 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 11469], 10.00th=[ 17957], 20.00th=[ 23987], | 30.00th=[ 29230], 40.00th=[ 34341], 50.00th=[ 39584], 60.00th=[ 46400], | 70.00th=[ 55313], 80.00th=[ 65274], 90.00th=[ 84411], 95.00th=[103285], | 99.00th=[152044], 99.50th=[173016], 99.90th=[274727], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 111, per=25.51%, avg=47.20, stdev=18.96, samples=250 iops : min= 1, max= 27, avg=11.17, stdev= 4.77, samples=250 write: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6236KiB/128250msec); 0 zone resets clat (usec): min=801, max=1063.1k, avg=36549.23, stdev=45292.47 lat (usec): min=803, max=1063.1k, avg=36552.17, stdev=45291.69 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1352], 10.00th=[ 1729], | 20.00th=[ 3818], 30.00th=[ 7898], 40.00th=[ 17171], | 50.00th=[ 26608], 60.00th=[ 35390], 70.00th=[ 45876], | 80.00th=[ 61604], 90.00th=[ 88605], 95.00th=[ 111674], | 99.00th=[ 149947], 99.50th=[ 187696], 99.90th=[ 308282], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 7, max= 119, per=24.90%, avg=48.31, stdev=20.75, samples=251 iops : min= 1, max= 29, avg=11.45, stdev= 5.24, samples=251 lat (usec) : 50=0.36%, 100=1.37%, 250=0.13%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.96%, 4=4.49%, 10=6.54%, 20=9.24%, 50=40.79% lat (msec) : 100=24.93%, 250=5.83%, 500=0.20%, 2000=0.03% cpu : usr=0.08%, sys=5.19%, ctx=6527, 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=186KiB/s (190kB/s), 46.3KiB/s-47.2KiB/s (47.4kB/s-48.3kB/s), io=23.4MiB (24.6MB), run=126818-129356msec WRITE: bw=194KiB/s (199kB/s), 48.6KiB/s-50.1KiB/s (49.8kB/s-51.3kB/s), io=24.6MiB (25.7MB), run=126818-129356msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179558: Thu Jul 16 05:10:27 2026 read: IOPS=8, BW=35.2KiB/s (36.0kB/s)(5992KiB/170230msec) clat (msec): min=6, max=1299, avg=44.80, stdev=52.05 lat (msec): min=6, max=1299, avg=44.80, stdev=52.05 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 47], 80.00th=[ 66], 90.00th=[ 99], 95.00th=[ 128], | 99.00th=[ 209], 99.50th=[ 249], 99.90th=[ 368], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7, max= 134, per=25.48%, avg=35.93, stdev=25.08, samples=324 iops : min= 1, max= 33, avg= 8.34, stdev= 6.30, samples=324 write: IOPS=9, BW=36.0KiB/s (37.9kB/s)(6296KiB/170230msec); 0 zone resets clat (msec): min=9, max=396, avg=65.26, stdev=48.91 lat (msec): min=9, max=396, avg=65.26, stdev=48.91 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 47], 60.00th=[ 58], | 70.00th=[ 74], 80.00th=[ 100], 90.00th=[ 130], 95.00th=[ 165], | 99.00th=[ 236], 99.50th=[ 300], 99.90th=[ 376], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 7, max= 127, per=25.12%, avg=36.93, stdev=24.70, samples=331 iops : min= 1, max= 31, avg= 8.59, stdev= 6.22, samples=331 lat (msec) : 10=1.79%, 20=15.79%, 50=44.24%, 100=23.54%, 250=14.10% lat (msec) : 500=0.52%, 2000=0.03% cpu : usr=0.06%, sys=2.13%, ctx=5037, 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=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=179559: Thu Jul 16 05:10:27 2026 read: IOPS=8, BW=34.0KiB/s (35.8kB/s)(5940KiB/169904msec) clat (msec): min=5, max=1129, avg=44.07, stdev=49.83 lat (msec): min=5, max=1129, avg=44.07, stdev=49.83 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 36], | 70.00th=[ 47], 80.00th=[ 64], 90.00th=[ 97], 95.00th=[ 128], | 99.00th=[ 201], 99.50th=[ 241], 99.90th=[ 355], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 143, per=25.81%, avg=36.39, stdev=26.03, samples=317 iops : min= 1, max= 35, avg= 8.46, stdev= 6.54, samples=317 write: IOPS=9, BW=37.4KiB/s (38.3kB/s)(6348KiB/169904msec); 0 zone resets clat (msec): min=10, max=360, avg=65.59, stdev=48.84 lat (msec): min=10, max=360, avg=65.59, stdev=48.84 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 50], 60.00th=[ 60], | 70.00th=[ 77], 80.00th=[ 96], 90.00th=[ 133], 95.00th=[ 161], | 99.00th=[ 239], 99.50th=[ 257], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 142, per=25.36%, avg=37.28, stdev=25.09, samples=330 iops : min= 1, max= 35, avg= 8.68, stdev= 6.32, samples=330 lat (msec) : 10=2.86%, 20=15.20%, 50=43.82%, 100=23.73%, 250=13.80% lat (msec) : 500=0.55%, 2000=0.03% cpu : usr=0.05%, sys=2.10%, ctx=5101, 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=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=179560: Thu Jul 16 05:10:27 2026 read: IOPS=8, BW=35.4KiB/s (36.3kB/s)(6028KiB/170056msec) clat (msec): min=5, max=359, avg=43.90, stdev=39.97 lat (msec): min=5, max=359, avg=43.90, stdev=39.97 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 99], 95.00th=[ 129], | 99.00th=[ 201], 99.50th=[ 226], 99.90th=[ 317], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 151, per=25.70%, avg=36.24, stdev=24.92, samples=324 iops : min= 1, max= 37, avg= 8.41, stdev= 6.26, samples=324 write: IOPS=9, BW=36.8KiB/s (37.7kB/s)(6260KiB/170056msec); 0 zone resets clat (msec): min=10, max=1142, avg=66.14, stdev=56.02 lat (msec): min=10, max=1142, avg=66.14, stdev=56.02 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 60], | 70.00th=[ 77], 80.00th=[ 97], 90.00th=[ 132], 95.00th=[ 161], | 99.00th=[ 241], 99.50th=[ 296], 99.90th=[ 376], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 134, per=25.12%, avg=36.93, stdev=24.93, samples=330 iops : min= 1, max= 33, avg= 8.59, stdev= 6.28, samples=330 lat (msec) : 10=1.82%, 20=14.91%, 50=45.61%, 100=23.34%, 250=13.80% lat (msec) : 500=0.49%, 2000=0.03% cpu : usr=0.06%, sys=2.12%, ctx=5150, 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=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=179561: Thu Jul 16 05:10:27 2026 read: IOPS=8, BW=35.7KiB/s (36.5kB/s)(6052KiB/169635msec) clat (msec): min=6, max=359, avg=43.75, stdev=42.86 lat (msec): min=6, max=359, avg=43.76, stdev=42.86 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 63], 90.00th=[ 101], 95.00th=[ 129], | 99.00th=[ 209], 99.50th=[ 247], 99.90th=[ 347], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 134, per=26.45%, avg=37.29, stdev=27.20, samples=316 iops : min= 1, max= 33, avg= 8.68, stdev= 6.85, samples=316 write: IOPS=9, BW=36.8KiB/s (37.6kB/s)(6236KiB/169635msec); 0 zone resets clat (msec): min=11, max=1053, avg=65.98, stdev=56.02 lat (msec): min=11, max=1053, avg=65.99, stdev=56.01 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 47], 60.00th=[ 60], | 70.00th=[ 74], 80.00th=[ 96], 90.00th=[ 128], 95.00th=[ 163], | 99.00th=[ 262], 99.50th=[ 300], 99.90th=[ 388], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 142, per=25.17%, avg=37.00, stdev=24.55, samples=328 iops : min= 1, max= 35, avg= 8.61, stdev= 6.18, samples=328 lat (msec) : 10=2.51%, 20=15.49%, 50=45.67%, 100=22.01%, 250=13.51% lat (msec) : 500=0.78%, 2000=0.03% cpu : usr=0.06%, sys=2.08%, ctx=5104, 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=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=141KiB/s (144kB/s), 34.0KiB/s-35.7KiB/s (35.8kB/s-36.5kB/s), io=23.4MiB (24.6MB), run=169635-170230msec WRITE: bw=148KiB/s (151kB/s), 36.8KiB/s-37.4KiB/s (37.6kB/s-38.3kB/s), io=24.6MiB (25.7MB), run=169635-170230msec 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=179610: Thu Jul 16 05:11:08 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(5920KiB/30135msec) clat (usec): min=40, max=186555, avg=39585.63, stdev=27694.76 lat (usec): min=40, max=186557, avg=39586.98, stdev=27694.74 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 57], 10.00th=[ 67], 20.00th=[ 18482], | 30.00th=[ 25560], 40.00th=[ 31327], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 50594], 80.00th=[ 61080], 90.00th=[ 76022], 95.00th=[ 85459], | 99.00th=[129500], 99.50th=[143655], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 62, max= 407, per=26.10%, avg=196.27, stdev=68.83, samples=59 iops : min= 3, max= 25, avg=11.56, stdev= 4.35, samples=59 write: IOPS=13, BW=211KiB/s (216kB/s)(6368KiB/30135msec); 0 zone resets clat (usec): min=1381, max=186300, avg=38799.57, stdev=37507.13 lat (usec): min=1384, max=186302, avg=38819.23, stdev=37502.90 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2180], 10.00th=[ 3523], 20.00th=[ 5932], | 30.00th=[ 10552], 40.00th=[ 18220], 50.00th=[ 27657], 60.00th=[ 38536], | 70.00th=[ 50070], 80.00th=[ 66847], 90.00th=[ 95945], 95.00th=[117965], | 99.00th=[162530], 99.50th=[185598], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 62, max= 479, per=26.69%, avg=211.10, stdev=89.52, samples=59 iops : min= 3, max= 29, avg=12.47, stdev= 5.63, samples=59 lat (usec) : 50=0.39%, 100=6.12%, 250=0.39%, 1000=0.26% lat (msec) : 2=1.95%, 4=4.95%, 10=8.59%, 20=9.51%, 50=37.37% lat (msec) : 100=25.00%, 250=5.47% cpu : usr=0.06%, sys=6.42%, ctx=1624, 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=179611: Thu Jul 16 05:11:08 2026 read: IOPS=11, BW=180KiB/s (185kB/s)(5744KiB/31827msec) clat (usec): min=46, max=230381, avg=45640.18, stdev=33390.26 lat (usec): min=46, max=230382, avg=45641.53, stdev=33390.24 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 13960], 20.00th=[ 23725], | 30.00th=[ 29230], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 46400], | 70.00th=[ 52691], 80.00th=[ 62129], 90.00th=[ 80217], 95.00th=[106431], | 99.00th=[185598], 99.50th=[191890], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 31, max= 378, per=23.81%, avg=179.08, stdev=76.20, samples=62 iops : min= 1, max= 23, avg=10.45, stdev= 4.82, samples=62 write: IOPS=12, BW=206KiB/s (211kB/s)(6544KiB/31827msec); 0 zone resets clat (usec): min=1660, max=219507, avg=37623.68, stdev=35470.91 lat (usec): min=1662, max=219509, avg=37626.00, stdev=35470.73 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1975], 10.00th=[ 2933], 20.00th=[ 6390], | 30.00th=[ 11469], 40.00th=[ 20841], 50.00th=[ 28967], 60.00th=[ 35390], | 70.00th=[ 49021], 80.00th=[ 63177], 90.00th=[ 85459], 95.00th=[110625], | 99.00th=[135267], 99.50th=[179307], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 31, max= 378, per=25.80%, avg=204.08, stdev=74.24, samples=62 iops : min= 1, max= 23, avg=12.05, stdev= 4.66, samples=62 lat (usec) : 50=0.26%, 100=2.47%, 250=0.78% lat (msec) : 2=3.12%, 4=3.65%, 10=8.59%, 20=9.51%, 50=39.71% lat (msec) : 100=25.78%, 250=6.12% cpu : usr=0.08%, sys=5.96%, ctx=1673, 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=179612: Thu Jul 16 05:11:08 2026 read: IOPS=12, BW=198KiB/s (203kB/s)(6256KiB/31583msec) clat (usec): min=38, max=252241, avg=43392.84, stdev=28029.20 lat (usec): min=39, max=252243, avg=43408.04, stdev=28030.13 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 15139], 20.00th=[ 23200], | 30.00th=[ 30540], 40.00th=[ 35914], 50.00th=[ 40109], 60.00th=[ 45351], | 70.00th=[ 52691], 80.00th=[ 62129], 90.00th=[ 72877], 95.00th=[ 85459], | 99.00th=[113771], 99.50th=[233833], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 61, max= 384, per=26.37%, avg=198.29, stdev=68.49, samples=62 iops : min= 3, max= 24, avg=11.68, stdev= 4.37, samples=62 write: IOPS=11, BW=191KiB/s (196kB/s)(6032KiB/31583msec); 0 zone resets clat (usec): min=1401, max=280824, avg=38645.61, stdev=38928.10 lat (usec): min=1403, max=280826, avg=38647.85, stdev=38928.08 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 1975], 10.00th=[ 3294], 20.00th=[ 6325], | 30.00th=[ 12649], 40.00th=[ 19006], 50.00th=[ 26608], 60.00th=[ 36439], | 70.00th=[ 50594], 80.00th=[ 64226], 90.00th=[ 85459], 95.00th=[126354], | 99.00th=[175113], 99.50th=[189793], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 62, max= 351, per=23.97%, avg=189.60, stdev=80.64, samples=62 iops : min= 3, max= 21, avg=11.13, stdev= 5.06, samples=62 lat (usec) : 50=0.52%, 100=3.39%, 250=0.26% lat (msec) : 2=2.60%, 4=4.04%, 10=7.42%, 20=9.38%, 50=40.49% lat (msec) : 100=26.56%, 250=5.08%, 500=0.26% cpu : usr=0.04%, sys=5.52%, ctx=1715, 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=179613: Thu Jul 16 05:11:08 2026 read: IOPS=12, BW=202KiB/s (207kB/s)(6032KiB/29816msec) clat (usec): min=41, max=249866, avg=43373.66, stdev=33226.49 lat (usec): min=42, max=249867, avg=43374.98, stdev=33226.50 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 59], 10.00th=[ 70], 20.00th=[ 21365], | 30.00th=[ 27395], 40.00th=[ 32375], 50.00th=[ 39060], 60.00th=[ 45351], | 70.00th=[ 54789], 80.00th=[ 62129], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[187696], 99.50th=[208667], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 61, max= 409, per=26.76%, avg=201.24, stdev=80.80, samples=58 iops : min= 3, max= 25, avg=11.84, stdev= 5.11, samples=58 write: IOPS=13, BW=210KiB/s (215kB/s)(6256KiB/29816msec); 0 zone resets clat (usec): min=1580, max=214204, avg=34302.11, stdev=33533.13 lat (usec): min=1582, max=214207, avg=34319.68, stdev=33556.08 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2311], 10.00th=[ 3785], 20.00th=[ 5997], | 30.00th=[ 9372], 40.00th=[ 15795], 50.00th=[ 24511], 60.00th=[ 32900], | 70.00th=[ 43254], 80.00th=[ 57934], 90.00th=[ 81265], 95.00th=[ 98042], | 99.00th=[147850], 99.50th=[162530], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 62, max= 448, per=26.57%, avg=210.14, stdev=85.90, samples=58 iops : min= 3, max= 28, avg=12.41, stdev= 5.50, samples=58 lat (usec) : 50=0.65%, 100=4.95%, 250=0.26%, 500=0.13%, 750=0.13% lat (msec) : 2=1.82%, 4=4.04%, 10=10.16%, 20=10.16%, 50=38.02% lat (msec) : 100=25.00%, 250=4.69% cpu : usr=0.06%, sys=6.16%, ctx=1671, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=753KiB/s (771kB/s), 180KiB/s-202KiB/s (185kB/s-207kB/s), io=23.4MiB (24.5MB), run=29816-31827msec WRITE: bw=792KiB/s (811kB/s), 191KiB/s-211KiB/s (196kB/s-216kB/s), io=24.6MiB (25.8MB), run=29816-31827msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179605: Thu Jul 16 05:11:22 2026 read: IOPS=8, BW=130KiB/s (133kB/s)(5920KiB/45663msec) clat (msec): min=7, max=298, avg=49.18, stdev=38.67 lat (msec): min=7, max=298, avg=49.19, stdev=38.67 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 71], 90.00th=[ 102], 95.00th=[ 128], | 99.00th=[ 184], 99.50th=[ 192], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 414, per=25.09%, avg=130.71, stdev=71.62, samples=87 iops : min= 1, max= 25, avg= 7.40, stdev= 4.51, samples=87 write: IOPS=8, BW=139KiB/s (143kB/s)(6368KiB/45663msec); 0 zone resets clat (msec): min=16, max=288, avg=68.84, stdev=41.59 lat (msec): min=16, max=288, avg=68.84, stdev=41.60 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 37], | 30.00th=[ 43], 40.00th=[ 50], 50.00th=[ 57], 60.00th=[ 66], | 70.00th=[ 80], 80.00th=[ 96], 90.00th=[ 127], 95.00th=[ 155], | 99.00th=[ 205], 99.50th=[ 245], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 30, max= 351, per=25.35%, avg=138.90, stdev=67.57, samples=89 iops : min= 1, max= 21, avg= 7.91, stdev= 4.30, samples=89 lat (msec) : 10=0.65%, 20=8.46%, 50=43.49%, 100=33.20%, 250=13.93% lat (msec) : 500=0.26% cpu : usr=0.04%, sys=2.05%, ctx=1249, 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=179606: Thu Jul 16 05:11:22 2026 read: IOPS=7, BW=126KiB/s (129kB/s)(5744KiB/45524msec) clat (msec): min=8, max=186, avg=46.47, stdev=31.61 lat (msec): min=8, max=186, avg=46.47, stdev=31.61 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 23], | 30.00th=[ 29], 40.00th=[ 33], 50.00th=[ 37], 60.00th=[ 44], | 70.00th=[ 53], 80.00th=[ 63], 90.00th=[ 96], 95.00th=[ 117], | 99.00th=[ 155], 99.50th=[ 182], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 30, max= 383, per=24.71%, avg=128.74, stdev=77.29, samples=87 iops : min= 1, max= 23, avg= 7.28, stdev= 4.82, samples=87 write: IOPS=8, BW=144KiB/s (147kB/s)(6544KiB/45524msec); 0 zone resets clat (msec): min=17, max=276, avg=70.19, stdev=42.13 lat (msec): min=17, max=276, avg=70.21, stdev=42.12 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 37], | 30.00th=[ 45], 40.00th=[ 51], 50.00th=[ 61], 60.00th=[ 70], | 70.00th=[ 82], 80.00th=[ 96], 90.00th=[ 124], 95.00th=[ 150], | 99.00th=[ 224], 99.50th=[ 253], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 62, max= 316, per=26.36%, avg=144.48, stdev=62.22, samples=88 iops : min= 3, max= 19, avg= 8.27, stdev= 3.95, samples=88 lat (msec) : 10=0.65%, 20=6.64%, 50=45.31%, 100=34.64%, 250=12.37% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=2.07%, ctx=1238, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179607: Thu Jul 16 05:11:22 2026 read: IOPS=8, BW=137KiB/s (140kB/s)(6256KiB/45686msec) clat (msec): min=7, max=224, avg=47.47, stdev=35.40 lat (msec): min=7, max=224, avg=47.47, stdev=35.40 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 18], 20.00th=[ 24], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 43], | 70.00th=[ 52], 80.00th=[ 66], 90.00th=[ 95], 95.00th=[ 126], | 99.00th=[ 178], 99.50th=[ 199], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 31, max= 383, per=27.50%, avg=143.26, stdev=79.61, samples=86 iops : min= 1, max= 23, avg= 8.14, stdev= 5.01, samples=86 write: IOPS=8, BW=132KiB/s (135kB/s)(6032KiB/45686msec); 0 zone resets clat (msec): min=16, max=287, avg=71.61, stdev=44.69 lat (msec): min=16, max=287, avg=71.62, stdev=44.69 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 38], | 30.00th=[ 44], 40.00th=[ 51], 50.00th=[ 59], 60.00th=[ 68], | 70.00th=[ 83], 80.00th=[ 99], 90.00th=[ 132], 95.00th=[ 159], | 99.00th=[ 257], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 320, per=23.71%, avg=129.93, stdev=60.25, samples=90 iops : min= 1, max= 20, avg= 7.30, stdev= 3.84, samples=90 lat (msec) : 10=0.91%, 20=6.25%, 50=47.40%, 100=31.77%, 250=13.15% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=2.13%, ctx=1263, 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=179608: Thu Jul 16 05:11:22 2026 read: IOPS=8, BW=131KiB/s (134kB/s)(6032KiB/45931msec) clat (msec): min=7, max=285, avg=50.57, stdev=36.78 lat (msec): min=7, max=285, avg=50.57, stdev=36.78 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 34], 50.00th=[ 42], 60.00th=[ 47], | 70.00th=[ 55], 80.00th=[ 72], 90.00th=[ 100], 95.00th=[ 129], | 99.00th=[ 171], 99.50th=[ 228], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 30, max= 443, per=25.43%, avg=132.48, stdev=68.91, samples=88 iops : min= 1, max= 27, avg= 7.50, stdev= 4.36, samples=88 write: IOPS=8, BW=136KiB/s (139kB/s)(6256KiB/45931msec); 0 zone resets clat (msec): min=15, max=251, avg=68.33, stdev=44.34 lat (msec): min=15, max=251, avg=68.33, stdev=44.34 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 30], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 49], 50.00th=[ 54], 60.00th=[ 64], | 70.00th=[ 77], 80.00th=[ 96], 90.00th=[ 125], 95.00th=[ 169], | 99.00th=[ 241], 99.50th=[ 243], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 31, max= 347, per=24.65%, avg=135.06, stdev=66.76, samples=90 iops : min= 1, max= 21, avg= 7.68, stdev= 4.24, samples=90 lat (msec) : 10=0.65%, 20=7.42%, 50=45.31%, 100=32.68%, 250=13.67% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=2.09%, ctx=1284, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=521KiB/s (534kB/s), 126KiB/s-137KiB/s (129kB/s-140kB/s), io=23.4MiB (24.5MB), run=45524-45931msec WRITE: bw=549KiB/s (562kB/s), 132KiB/s-144KiB/s (135kB/s-147kB/s), io=24.6MiB (25.8MB), run=45524-45931msec 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=179628: Thu Jul 16 05:11:43 2026 read: IOPS=0, BW=926KiB/s (948kB/s)(7168KiB/7740msec) clat (msec): min=2, max=3656, avg=658.04, stdev=1325.89 lat (msec): min=2, max=3656, avg=658.04, stdev=1325.89 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 45], | 30.00th=[ 201], 40.00th=[ 201], 50.00th=[ 215], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 245], 90.00th=[ 3641], 95.00th=[ 3641], | 99.00th=[ 3641], 99.50th=[ 3641], 99.90th=[ 3641], 99.95th=[ 3641], | 99.99th=[ 3641] bw ( KiB/s): min= 2007, max= 4087, per=100.00%, avg=3383.00, stdev=1191.76, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=661KiB/s (677kB/s)(5120KiB/7740msec); 0 zone resets clat (msec): min=273, max=1367, avg=588.95, stdev=458.37 lat (msec): min=273, max=1367, avg=589.04, stdev=458.37 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 2007, max= 2043, per=64.83%, avg=2026.00, stdev=14.74, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 4=8.33%, 50=8.33%, 250=33.33%, 500=25.00%, 750=8.33% lat (msec) : 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=9.10%, ctx=738, 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=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=179629: Thu Jul 16 05:11:43 2026 read: IOPS=0, BW=223KiB/s (229kB/s)(2048KiB/9175msec) clat (msec): min=269, max=339, avg=304.58, stdev=48.94 lat (msec): min=269, max=339, avg=304.58, stdev=48.94 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 2027, max= 2043, per=91.17%, avg=2035.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1116KiB/s (1143kB/s)(10.0MiB/9175msec); 0 zone resets clat (msec): min=89, max=3702, avg=793.11, stdev=1107.75 lat (msec): min=90, max=3703, avg=793.20, stdev=1107.75 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 159], | 30.00th=[ 213], 40.00th=[ 218], 50.00th=[ 292], 60.00th=[ 456], | 70.00th=[ 575], 80.00th=[ 667], 90.00th=[ 1552], 95.00th=[ 3708], | 99.00th=[ 3708], 99.50th=[ 3708], 99.90th=[ 3708], 99.95th=[ 3708], | 99.99th=[ 3708] bw ( KiB/s): min= 1921, max= 4055, per=85.74%, avg=2679.50, stdev=1066.20, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=16.67%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=8.02%, ctx=198, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179630: Thu Jul 16 05:11:43 2026 read: IOPS=0, BW=823KiB/s (842kB/s)(6144KiB/7469msec) clat (usec): min=684, max=482980, avg=250852.61, stdev=156476.10 lat (usec): min=685, max=482981, avg=250853.88, stdev=156476.08 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[191890], | 30.00th=[191890], 40.00th=[256902], 50.00th=[256902], 60.00th=[283116], | 70.00th=[287310], 80.00th=[287310], 90.00th=[484443], 95.00th=[484443], | 99.00th=[484443], 99.50th=[484443], 99.90th=[484443], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 1921, max= 4055, per=100.00%, avg=2505.50, stdev=1034.25, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=823KiB/s (842kB/s)(6144KiB/7469msec); 0 zone resets clat (msec): min=160, max=4171, avg=979.47, stdev=1574.24 lat (msec): min=161, max=4172, avg=979.78, stdev=1574.33 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 368], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 4178], 95.00th=[ 4178], | 99.00th=[ 4178], 99.50th=[ 4178], 99.90th=[ 4178], 99.95th=[ 4178], | 99.99th=[ 4178] bw ( KiB/s): min= 2003, max= 2942, per=70.54%, avg=2204.40, stdev=412.64, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=6.48%, ctx=172, 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=179631: Thu Jul 16 05:11:43 2026 read: IOPS=0, BW=618KiB/s (633kB/s)(5120KiB/8280msec) clat (msec): min=20, max=492, avg=289.52, stdev=172.80 lat (msec): min=20, max=492, avg=289.52, stdev=172.80 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 21], 10.00th=[ 21], 20.00th=[ 21], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 2000, max= 5763, per=100.00%, avg=3881.50, stdev=2660.84, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=0, BW=866KiB/s (886kB/s)(7168KiB/8280msec); 0 zone resets clat (msec): min=170, max=4211, avg=967.74, stdev=1451.11 lat (msec): min=170, max=4211, avg=967.83, stdev=1451.11 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 288], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 351], 60.00th=[ 498], | 70.00th=[ 498], 80.00th=[ 927], 90.00th=[ 4212], 95.00th=[ 4212], | 99.00th=[ 4212], 99.50th=[ 4212], 99.90th=[ 4212], 99.95th=[ 4212], | 99.99th=[ 4212] bw ( KiB/s): min= 1988, max= 4055, per=90.14%, avg=2817.00, stdev=1101.72, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 50=8.33%, 250=8.33%, 500=66.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.01%, sys=5.83%, ctx=132, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2232KiB/s (2286kB/s), 223KiB/s-926KiB/s (229kB/s-948kB/s), io=20.0MiB (20.0MB), run=7469-9175msec WRITE: bw=3125KiB/s (3200kB/s), 661KiB/s-1116KiB/s (677kB/s-1143kB/s), io=28.0MiB (29.4MB), run=7469-9175msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179632: Thu Jul 16 05:11:43 2026 read: IOPS=0, BW=771KiB/s (790kB/s)(7168KiB/9292msec) clat (msec): min=126, max=3184, avg=882.76, stdev=1182.97 lat (msec): min=126, max=3184, avg=882.76, stdev=1182.97 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 176], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 275], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 1854], 90.00th=[ 3171], 95.00th=[ 3171], | 99.00th=[ 3171], 99.50th=[ 3171], 99.90th=[ 3171], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 1738, max= 3820, per=100.00%, avg=2324.60, stdev=844.99, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=551KiB/s (564kB/s)(5120KiB/9292msec); 0 zone resets clat (msec): min=148, max=840, avg=485.03, stdev=263.03 lat (msec): min=148, max=840, avg=485.12, stdev=263.03 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 2007, max= 3992, per=87.85%, avg=2676.67, stdev=1139.18, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.55%, ctx=79, 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=179633: Thu Jul 16 05:11:43 2026 read: IOPS=0, BW=227KiB/s (233kB/s)(2048KiB/9011msec) clat (msec): min=505, max=670, avg=587.89, stdev=116.70 lat (msec): min=505, max=670, avg=587.89, stdev=116.70 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1910, max= 2043, per=90.83%, avg=1976.50, stdev=94.05, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1136KiB/s (1164kB/s)(10.0MiB/9011msec); 0 zone resets clat (msec): min=205, max=3460, avg=764.10, stdev=977.44 lat (msec): min=206, max=3460, avg=764.46, stdev=977.32 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 271], | 30.00th=[ 288], 40.00th=[ 296], 50.00th=[ 405], 60.00th=[ 426], | 70.00th=[ 617], 80.00th=[ 676], 90.00th=[ 995], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 1738, max= 4047, per=83.95%, avg=2558.00, stdev=1004.37, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 250=8.33%, 500=41.67%, 750=33.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.03%, sys=1.41%, ctx=65, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179634: Thu Jul 16 05:11:43 2026 read: IOPS=0, BW=682KiB/s (698kB/s)(6144KiB/9013msec) clat (msec): min=114, max=1339, avg=388.37, stdev=474.12 lat (msec): min=114, max=1339, avg=388.37, stdev=474.12 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 211], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 2007, max= 3992, per=100.00%, avg=3158.67, stdev=1030.08, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=682KiB/s (698kB/s)(6144KiB/9013msec); 0 zone resets clat (msec): min=163, max=4411, avg=1017.10, stdev=1672.29 lat (msec): min=163, max=4411, avg=1017.20, stdev=1672.29 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 188], | 30.00th=[ 188], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 393], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 4396], 95.00th=[ 4396], | 99.00th=[ 4396], 99.50th=[ 4396], 99.90th=[ 4396], 99.95th=[ 4396], | 99.99th=[ 4396] bw ( KiB/s): min= 2007, max= 4087, per=83.26%, avg=2537.00, stdev=1033.38, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.44%, ctx=124, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179635: Thu Jul 16 05:11:43 2026 read: IOPS=0, BW=544KiB/s (557kB/s)(5120KiB/9409msec) clat (msec): min=70, max=687, avg=406.08, stdev=308.14 lat (msec): min=70, max=687, avg=406.09, stdev=308.14 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 70], | 30.00th=[ 77], 40.00th=[ 77], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1910, max= 4015, per=100.00%, avg=2640.33, stdev=1191.27, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=762KiB/s (780kB/s)(7168KiB/9409msec); 0 zone resets clat (msec): min=105, max=4369, avg=967.78, stdev=1519.76 lat (msec): min=105, max=4369, avg=969.40, stdev=1519.38 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 192], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 456], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 776], 90.00th=[ 4396], 95.00th=[ 4396], | 99.00th=[ 4396], 99.50th=[ 4396], 99.90th=[ 4396], 99.95th=[ 4396], | 99.99th=[ 4396] bw ( KiB/s): min= 1738, max= 6144, per=91.76%, avg=2795.80, stdev=1876.05, samples=5 iops : min= 1, max= 6, avg= 2.00, stdev= 2.24, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=8.33%, 750=33.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.03%, sys=2.38%, ctx=118, 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=2177KiB/s (2229kB/s), 227KiB/s-771KiB/s (233kB/s-790kB/s), io=20.0MiB (20.0MB), run=9011-9409msec WRITE: bw=3047KiB/s (3120kB/s), 551KiB/s-1136KiB/s (564kB/s-1164kB/s), io=28.0MiB (29.4MB), run=9011-9409msec 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=179643: Thu Jul 16 05:11:56 2026 read: IOPS=0, BW=3829KiB/s (3921kB/s)(12.0MiB/3209msec) clat (msec): min=332, max=1416, avg=984.25, stdev=574.57 lat (msec): min=332, max=1416, avg=984.25, stdev=574.58 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 8110, max= 8159, per=100.00%, avg=8134.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.05%, ctx=45, 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=179645: Thu Jul 16 05:11:56 2026 read: IOPS=0, BW=1247KiB/s (1277kB/s)(4096KiB/3284msec) clat (nsec): min=1222.4M, max=1222.4M, avg=1222401102.00, stdev= 0.00 lat (nsec): min=1222.4M, max=1222.4M, avg=1222403592.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1217], 5.00th=[ 1217], 10.00th=[ 1217], 20.00th=[ 1217], | 30.00th=[ 1217], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2495KiB/s (2554kB/s)(8192KiB/3284msec); 0 zone resets clat (msec): min=483, max=1487, avg=985.38, stdev=710.03 lat (msec): min=483, max=1487, avg=985.61, stdev=710.02 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 1485], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8159, max= 8159, per=81.77%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.35%, ctx=43, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179647: Thu Jul 16 05:11:56 2026 write: IOPS=2, BW=9990KiB/s (10.2MB/s)(12.0MiB/1230msec); 0 zone resets clat (msec): min=252, max=580, avg=383.42, stdev=173.69 lat (msec): min=252, max=580, avg=383.91, stdev=173.61 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 7135, max= 8094, per=76.31%, avg=7614.50, stdev=678.12, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.33%, sys=11.64%, ctx=43, 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=179648: Thu Jul 16 05:11:56 2026 write: IOPS=0, BW=3840KiB/s (3932kB/s)(12.0MiB/3200msec); 0 zone resets clat (msec): min=268, max=1940, avg=946.64, stdev=879.83 lat (msec): min=270, max=1941, avg=947.51, stdev=879.27 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 634], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 8094, max= 8175, per=81.52%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.84%, ctx=60, 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=4989KiB/s (5109kB/s), 1247KiB/s-3829KiB/s (1277kB/s-3921kB/s), io=16.0MiB (16.8MB), run=3209-3284msec WRITE: bw=9978KiB/s (10.2MB/s), 2495KiB/s-9990KiB/s (2554kB/s-10.2MB/s), io=32.0MiB (33.6MB), run=1230-3284msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179644: Thu Jul 16 05:11:57 2026 read: IOPS=1, BW=4180KiB/s (4280kB/s)(12.0MiB/2940msec) clat (msec): min=758, max=1035, avg=915.88, stdev=142.15 lat (msec): min=758, max=1035, avg=915.89, stdev=142.15 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 8031, max= 8192, per=100.00%, avg=8111.50, stdev=113.84, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=13.47%, ctx=395, 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=179646: Thu Jul 16 05:11:57 2026 read: IOPS=0, BW=1556KiB/s (1594kB/s)(4096KiB/2632msec) clat (nsec): min=896818k, max=896818k, avg=896818296.00, stdev= 0.00 lat (nsec): min=896821k, max=896821k, avg=896821044.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3112KiB/s (3187kB/s)(8192KiB/2632msec); 0 zone resets clat (msec): min=579, max=983, avg=781.65, stdev=285.71 lat (msec): min=580, max=983, avg=782.05, stdev=285.57 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 986], | 70.00th=[ 986], 80.00th=[ 986], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=4.14%, ctx=181, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179649: Thu Jul 16 05:11:57 2026 write: IOPS=0, BW=3002KiB/s (3074kB/s)(12.0MiB/4093msec); 0 zone resets clat (msec): min=214, max=3486, avg=1319.12, stdev=1877.18 lat (msec): min=215, max=3488, avg=1320.01, stdev=1878.05 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 257], 50.00th=[ 257], 60.00th=[ 257], | 70.00th=[ 3473], 80.00th=[ 3473], 90.00th=[ 3473], 95.00th=[ 3473], | 99.00th=[ 3473], 99.50th=[ 3473], 99.90th=[ 3473], 99.95th=[ 3473], | 99.99th=[ 3473] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.22%, ctx=46, 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=179650: Thu Jul 16 05:11:57 2026 write: IOPS=0, BW=3276KiB/s (3355kB/s)(12.0MiB/3751msec); 0 zone resets clat (msec): min=316, max=2918, avg=1230.90, stdev=1462.88 lat (msec): min=317, max=2918, avg=1231.27, stdev=1462.88 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 2903], 80.00th=[ 2903], 90.00th=[ 2903], 95.00th=[ 2903], | 99.00th=[ 2903], 99.50th=[ 2903], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 7742, max= 7816, per=97.18%, avg=7779.00, stdev=52.33, 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=3.31%, ctx=58, 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=5573KiB/s (5707kB/s), 1556KiB/s-4180KiB/s (1594kB/s-4280kB/s), io=16.0MiB (16.8MB), run=2632-2940msec WRITE: bw=8006KiB/s (8198kB/s), 3002KiB/s-3276KiB/s (3074kB/s-3355kB/s), io=32.0MiB (33.6MB), run=2632-4093msec