== sanity test 398b: DIO and buffer IO race ============== 18:50:22 (1786834222) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.80844 s, 8.7 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=178535: Sat Aug 15 18:52:41 2026 read: IOPS=12, BW=48.8KiB/s (49.9kB/s)(5992KiB/122876msec) clat (usec): min=36, max=805782, avg=44516.67, stdev=34292.42 lat (usec): min=37, max=805784, avg=44520.32, stdev=34294.10 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 9372], 10.00th=[ 16712], 20.00th=[ 22414], | 30.00th=[ 28181], 40.00th=[ 32900], 50.00th=[ 38536], 60.00th=[ 44827], | 70.00th=[ 52691], 80.00th=[ 62129], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[137364], 99.50th=[173016], 99.90th=[214959], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 15, max= 132, per=25.26%, avg=49.01, stdev=19.35, samples=239 iops : min= 3, max= 33, avg=11.60, stdev= 4.91, samples=239 write: IOPS=12, BW=51.2KiB/s (52.5kB/s)(6296KiB/122876msec); 0 zone resets clat (usec): min=1188, max=343551, avg=35295.86, stdev=35302.01 lat (usec): min=1190, max=343552, avg=35302.42, stdev=35298.37 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1680], 10.00th=[ 2671], 20.00th=[ 5407], | 30.00th=[ 9372], 40.00th=[ 18482], 50.00th=[ 25822], 60.00th=[ 33817], | 70.00th=[ 45351], 80.00th=[ 60031], 90.00th=[ 82314], 95.00th=[103285], | 99.00th=[158335], 99.50th=[173016], 99.90th=[246416], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7, max= 135, per=25.26%, avg=51.28, stdev=23.36, samples=240 iops : min= 1, max= 33, avg=12.17, stdev= 5.88, samples=240 lat (usec) : 50=0.10%, 100=1.82%, 250=0.20%, 500=0.07%, 1000=0.03% lat (msec) : 2=3.52%, 4=4.49%, 10=8.37%, 20=10.03%, 50=41.93% lat (msec) : 100=24.45%, 250=4.95%, 500=0.03%, 1000=0.03% cpu : usr=0.09%, sys=5.86%, ctx=7027, 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=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=178536: Sat Aug 15 18:52:41 2026 read: IOPS=12, BW=48.3KiB/s (49.5kB/s)(5940KiB/122988msec) clat (usec): min=44, max=846032, avg=46023.24, stdev=36667.87 lat (usec): min=45, max=846035, avg=46029.79, stdev=36667.93 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 13173], 10.00th=[ 17433], 20.00th=[ 23200], | 30.00th=[ 28181], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 53740], 80.00th=[ 63701], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[166724], 99.50th=[179307], 99.90th=[392168], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 7, max= 95, per=24.76%, avg=48.04, stdev=17.41, samples=241 iops : min= 1, max= 23, avg=11.35, stdev= 4.41, samples=241 write: IOPS=12, BW=51.6KiB/s (52.9kB/s)(6348KiB/122988msec); 0 zone resets clat (usec): min=1206, max=321937, avg=34064.98, stdev=33216.78 lat (usec): min=1206, max=321940, avg=34073.58, stdev=33217.18 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1729], 10.00th=[ 2704], 20.00th=[ 5145], | 30.00th=[ 8848], 40.00th=[ 17171], 50.00th=[ 25822], 60.00th=[ 33817], | 70.00th=[ 43779], 80.00th=[ 56361], 90.00th=[ 82314], 95.00th=[102237], | 99.00th=[137364], 99.50th=[149947], 99.90th=[204473], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 7, max= 127, per=25.36%, avg=51.47, stdev=22.17, samples=240 iops : min= 1, max= 31, avg=12.22, stdev= 5.58, samples=240 lat (usec) : 50=0.10%, 100=1.46%, 250=0.03%, 500=0.07% lat (msec) : 2=3.61%, 4=4.56%, 10=8.72%, 20=10.09%, 50=42.09% lat (msec) : 100=24.28%, 250=4.88%, 500=0.07%, 1000=0.03% cpu : usr=0.09%, sys=6.04%, ctx=7045, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178537: Sat Aug 15 18:52:41 2026 read: IOPS=12, BW=49.6KiB/s (50.8kB/s)(6028KiB/121492msec) clat (usec): min=37, max=312708, avg=43642.73, stdev=28626.64 lat (usec): min=38, max=312710, avg=43647.47, stdev=28627.80 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 9241], 10.00th=[ 16450], 20.00th=[ 22414], | 30.00th=[ 27132], 40.00th=[ 31851], 50.00th=[ 38011], 60.00th=[ 43779], | 70.00th=[ 52691], 80.00th=[ 62653], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[143655], 99.50th=[158335], 99.90th=[212861], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 111, per=25.64%, avg=49.75, stdev=19.43, samples=237 iops : min= 1, max= 27, avg=11.78, stdev= 4.90, samples=237 write: IOPS=12, BW=51.5KiB/s (52.8kB/s)(6260KiB/121492msec); 0 zone resets clat (usec): min=1197, max=925040, avg=35260.29, stdev=42022.53 lat (usec): min=1198, max=925043, avg=35265.86, stdev=42021.48 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1663], 10.00th=[ 2376], 20.00th=[ 4293], | 30.00th=[ 8160], 40.00th=[ 16712], 50.00th=[ 25560], 60.00th=[ 33817], | 70.00th=[ 43779], 80.00th=[ 59507], 90.00th=[ 83362], 95.00th=[103285], | 99.00th=[154141], 99.50th=[198181], 99.90th=[304088], 99.95th=[926942], | 99.99th=[926942] bw ( KiB/s): min= 7, max= 120, per=25.31%, avg=51.39, stdev=23.21, samples=238 iops : min= 1, max= 30, avg=12.20, stdev= 5.85, samples=238 lat (usec) : 50=0.13%, 100=1.69%, 250=0.26%, 500=0.20%, 750=0.03% lat (msec) : 2=3.84%, 4=5.79%, 10=7.49%, 20=10.25%, 50=41.21% lat (msec) : 100=24.25%, 250=4.72%, 500=0.10%, 1000=0.03% cpu : usr=0.11%, sys=6.08%, ctx=7108, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178538: Sat Aug 15 18:52:41 2026 read: IOPS=12, BW=49.1KiB/s (50.2kB/s)(6052KiB/123372msec) clat (usec): min=47, max=933922, avg=45793.13, stdev=37018.62 lat (usec): min=48, max=933924, avg=45801.40, stdev=37020.41 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 10552], 10.00th=[ 17695], 20.00th=[ 23200], | 30.00th=[ 28705], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 54789], 80.00th=[ 64750], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[147850], 99.50th=[189793], 99.90th=[254804], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 15, max= 127, per=25.28%, avg=49.05, stdev=18.00, samples=241 iops : min= 3, max= 31, avg=11.60, stdev= 4.54, samples=241 write: IOPS=12, BW=50.5KiB/s (51.8kB/s)(6236KiB/123372msec); 0 zone resets clat (usec): min=1103, max=264549, avg=34387.52, stdev=33277.62 lat (usec): min=1104, max=264552, avg=34397.76, stdev=33280.97 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 1729], 10.00th=[ 2835], 20.00th=[ 5211], | 30.00th=[ 9110], 40.00th=[ 17433], 50.00th=[ 26084], 60.00th=[ 34866], | 70.00th=[ 45351], 80.00th=[ 58983], 90.00th=[ 78119], 95.00th=[ 99091], | 99.00th=[143655], 99.50th=[158335], 99.90th=[250610], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 125, per=24.67%, avg=50.07, stdev=20.64, samples=243 iops : min= 1, max= 31, avg=11.87, stdev= 5.21, samples=243 lat (usec) : 50=0.10%, 100=1.63%, 250=0.26%, 1000=0.03% lat (msec) : 2=3.29%, 4=4.52%, 10=8.50%, 20=9.90%, 50=41.28% lat (msec) : 100=26.04%, 250=4.33%, 500=0.10%, 1000=0.03% cpu : usr=0.10%, sys=6.01%, ctx=7089, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=195KiB/s (199kB/s), 48.3KiB/s-49.6KiB/s (49.5kB/s-50.8kB/s), io=23.4MiB (24.6MB), run=121492-123372msec WRITE: bw=204KiB/s (209kB/s), 50.5KiB/s-51.6KiB/s (51.8kB/s-52.9kB/s), io=24.6MiB (25.7MB), run=121492-123372msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178531: Sat Aug 15 18:53:10 2026 read: IOPS=9, BW=39.8KiB/s (40.7kB/s)(5992KiB/150734msec) clat (msec): min=5, max=942, avg=39.17, stdev=43.48 lat (msec): min=5, max=942, avg=39.18, stdev=43.48 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 89], 95.00th=[ 118], | 99.00th=[ 190], 99.50th=[ 213], 99.90th=[ 262], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 143, per=25.25%, avg=39.90, stdev=31.49, samples=291 iops : min= 1, max= 35, avg= 9.31, stdev= 7.92, samples=291 write: IOPS=10, BW=41.8KiB/s (42.8kB/s)(6296KiB/150734msec); 0 zone resets clat (msec): min=9, max=397, avg=58.22, stdev=45.15 lat (msec): min=9, max=397, avg=58.23, stdev=45.14 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 19], 20.00th=[ 23], | 30.00th=[ 28], 40.00th=[ 34], 50.00th=[ 42], 60.00th=[ 55], | 70.00th=[ 72], 80.00th=[ 90], 90.00th=[ 121], 95.00th=[ 144], | 99.00th=[ 201], 99.50th=[ 249], 99.90th=[ 359], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 7, max= 167, per=25.20%, avg=41.58, stdev=30.82, samples=294 iops : min= 1, max= 41, avg= 9.72, stdev= 7.74, samples=294 lat (msec) : 10=5.01%, 20=21.19%, 50=40.27%, 100=21.58%, 250=11.65% lat (msec) : 500=0.26%, 1000=0.03% cpu : usr=0.07%, sys=2.57%, ctx=5044, 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=178532: Sat Aug 15 18:53:10 2026 read: IOPS=9, BW=39.1KiB/s (40.0kB/s)(5940KiB/151972msec) clat (msec): min=4, max=932, avg=40.05, stdev=44.58 lat (msec): min=4, max=932, avg=40.05, stdev=44.58 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 32], | 70.00th=[ 43], 80.00th=[ 60], 90.00th=[ 92], 95.00th=[ 122], | 99.00th=[ 188], 99.50th=[ 207], 99.90th=[ 241], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 168, per=25.48%, avg=40.25, stdev=32.78, samples=288 iops : min= 1, max= 42, avg= 9.39, stdev= 8.23, samples=288 write: IOPS=10, BW=41.8KiB/s (42.8kB/s)(6348KiB/151972msec); 0 zone resets clat (msec): min=10, max=393, avg=58.02, stdev=46.52 lat (msec): min=10, max=393, avg=58.03, stdev=46.52 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 19], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 41], 60.00th=[ 55], | 70.00th=[ 72], 80.00th=[ 90], 90.00th=[ 120], 95.00th=[ 150], | 99.00th=[ 224], 99.50th=[ 247], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 159, per=25.13%, avg=41.47, stdev=32.32, samples=299 iops : min= 1, max= 39, avg= 9.69, stdev= 8.12, samples=299 lat (msec) : 10=4.72%, 20=22.95%, 50=38.05%, 100=22.20%, 250=11.82% lat (msec) : 500=0.23%, 1000=0.03% cpu : usr=0.07%, sys=2.39%, ctx=5151, 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=178533: Sat Aug 15 18:53:10 2026 read: IOPS=9, BW=39.8KiB/s (40.7kB/s)(6028KiB/151506msec) clat (msec): min=5, max=392, avg=40.57, stdev=40.61 lat (msec): min=5, max=392, avg=40.58, stdev=40.61 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 62], 90.00th=[ 96], 95.00th=[ 123], | 99.00th=[ 194], 99.50th=[ 224], 99.90th=[ 300], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 167, per=25.58%, avg=40.42, stdev=31.46, samples=291 iops : min= 1, max= 41, avg= 9.44, stdev= 7.90, samples=291 write: IOPS=10, BW=41.3KiB/s (42.3kB/s)(6260KiB/151506msec); 0 zone resets clat (msec): min=9, max=949, avg=57.48, stdev=51.15 lat (msec): min=9, max=949, avg=57.48, stdev=51.15 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 33], 50.00th=[ 41], 60.00th=[ 53], | 70.00th=[ 68], 80.00th=[ 88], 90.00th=[ 118], 95.00th=[ 148], | 99.00th=[ 213], 99.50th=[ 300], 99.90th=[ 397], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 151, per=25.19%, avg=41.57, stdev=31.94, samples=294 iops : min= 1, max= 37, avg= 9.72, stdev= 8.02, samples=294 lat (msec) : 10=4.72%, 20=21.91%, 50=39.78%, 100=21.78%, 250=11.43% lat (msec) : 500=0.36%, 1000=0.03% cpu : usr=0.07%, sys=2.40%, ctx=5076, 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=178534: Sat Aug 15 18:53:10 2026 read: IOPS=9, BW=39.9KiB/s (40.9kB/s)(6052KiB/151626msec) clat (msec): min=4, max=298, avg=39.31, stdev=37.59 lat (msec): min=4, max=298, avg=39.31, stdev=37.59 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 33], | 70.00th=[ 44], 80.00th=[ 62], 90.00th=[ 92], 95.00th=[ 116], | 99.00th=[ 176], 99.50th=[ 203], 99.90th=[ 241], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 183, per=25.61%, avg=40.46, stdev=32.94, samples=291 iops : min= 1, max= 45, avg= 9.44, stdev= 8.28, samples=291 write: IOPS=10, BW=41.1KiB/s (42.1kB/s)(6236KiB/151626msec); 0 zone resets clat (msec): min=10, max=929, avg=58.85, stdev=51.54 lat (msec): min=10, max=929, avg=58.85, stdev=51.54 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 19], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 33], 50.00th=[ 40], 60.00th=[ 54], | 70.00th=[ 71], 80.00th=[ 91], 90.00th=[ 123], 95.00th=[ 148], | 99.00th=[ 226], 99.50th=[ 245], 99.90th=[ 397], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 151, per=24.93%, avg=41.13, stdev=31.20, samples=295 iops : min= 1, max= 37, avg= 9.61, stdev= 7.84, samples=295 lat (msec) : 10=5.40%, 20=22.01%, 50=38.74%, 100=21.35%, 250=12.24% lat (msec) : 500=0.23%, 1000=0.03% cpu : usr=0.05%, sys=2.43%, ctx=5012, 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=158KiB/s (162kB/s), 39.1KiB/s-39.9KiB/s (40.0kB/s-40.9kB/s), io=23.4MiB (24.6MB), run=150734-151972msec WRITE: bw=165KiB/s (169kB/s), 41.1KiB/s-41.8KiB/s (42.1kB/s-42.8kB/s), io=24.6MiB (25.7MB), run=150734-151972msec 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=178583: Sat Aug 15 18:53:50 2026 read: IOPS=12, BW=203KiB/s (208kB/s)(5920KiB/29158msec) clat (usec): min=34, max=144634, avg=41258.50, stdev=27334.38 lat (usec): min=34, max=144635, avg=41259.75, stdev=27334.33 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 64], 10.00th=[ 101], 20.00th=[ 20055], | 30.00th=[ 27132], 40.00th=[ 32637], 50.00th=[ 38536], 60.00th=[ 44303], | 70.00th=[ 50070], 80.00th=[ 58459], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[120062], 99.50th=[124257], 99.90th=[143655], 99.95th=[143655], | 99.99th=[143655] bw ( KiB/s): min= 93, max= 380, per=24.89%, avg=204.12, stdev=68.16, samples=57 iops : min= 5, max= 23, avg=12.00, stdev= 4.23, samples=57 write: IOPS=13, BW=218KiB/s (224kB/s)(6368KiB/29158msec); 0 zone resets clat (usec): min=1472, max=222235, avg=34419.98, stdev=33783.07 lat (usec): min=1474, max=222236, avg=34421.88, stdev=33783.06 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2278], 10.00th=[ 3261], 20.00th=[ 6325], | 30.00th=[ 9896], 40.00th=[ 16319], 50.00th=[ 25035], 60.00th=[ 32637], | 70.00th=[ 43254], 80.00th=[ 56886], 90.00th=[ 81265], 95.00th=[108528], | 99.00th=[154141], 99.50th=[164627], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 31, max= 442, per=25.41%, avg=219.28, stdev=82.28, samples=57 iops : min= 1, max= 27, avg=12.95, stdev= 5.18, samples=57 lat (usec) : 50=0.26%, 100=4.43%, 250=0.65% lat (msec) : 2=1.56%, 4=5.99%, 10=8.72%, 20=10.42%, 50=40.89% lat (msec) : 100=22.27%, 250=4.82% cpu : usr=0.06%, sys=6.43%, ctx=1724, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178584: Sat Aug 15 18:53:50 2026 read: IOPS=12, BW=197KiB/s (202kB/s)(5744KiB/29178msec) clat (usec): min=52, max=172076, avg=41806.68, stdev=26487.65 lat (usec): min=53, max=172078, avg=41808.10, stdev=26487.90 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 74], 10.00th=[ 14877], 20.00th=[ 21890], | 30.00th=[ 27657], 40.00th=[ 31851], 50.00th=[ 38536], 60.00th=[ 44303], | 70.00th=[ 50070], 80.00th=[ 61080], 90.00th=[ 72877], 95.00th=[ 90702], | 99.00th=[126354], 99.50th=[173016], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 29, max= 349, per=24.02%, avg=196.96, stdev=73.80, samples=57 iops : min= 1, max= 21, avg=11.54, stdev= 4.64, samples=57 write: IOPS=14, BW=224KiB/s (230kB/s)(6544KiB/29178msec); 0 zone resets clat (usec): min=1689, max=176623, avg=33864.19, stdev=31083.03 lat (usec): min=1691, max=176626, avg=33866.29, stdev=31083.07 clat percentiles (usec): | 1.00th=[ 1876], 5.00th=[ 2704], 10.00th=[ 3720], 20.00th=[ 6325], | 30.00th=[ 10945], 40.00th=[ 15926], 50.00th=[ 23987], 60.00th=[ 32637], | 70.00th=[ 44827], 80.00th=[ 58983], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[128451], 99.50th=[145753], 99.90th=[177210], 99.95th=[177210], | 99.99th=[177210] bw ( KiB/s): min= 31, max= 505, per=26.49%, avg=228.64, stdev=99.62, samples=56 iops : min= 1, max= 31, avg=13.55, stdev= 6.23, samples=56 lat (usec) : 100=2.86%, 250=0.26%, 500=0.13%, 750=0.13% lat (msec) : 2=1.17%, 4=4.95%, 10=8.98%, 20=13.28%, 50=39.84% lat (msec) : 100=24.87%, 250=3.52% cpu : usr=0.08%, sys=6.23%, ctx=1726, 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=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=178585: Sat Aug 15 18:53:50 2026 read: IOPS=14, BW=224KiB/s (230kB/s)(6256KiB/27880msec) clat (usec): min=39, max=222122, avg=40967.33, stdev=29835.65 lat (usec): min=39, max=222124, avg=40968.52, stdev=29835.73 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 6128], 20.00th=[ 19792], | 30.00th=[ 26608], 40.00th=[ 31589], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 49546], 80.00th=[ 57934], 90.00th=[ 70779], 95.00th=[ 86508], | 99.00th=[173016], 99.50th=[214959], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 94, max= 443, per=27.35%, avg=224.29, stdev=75.57, samples=55 iops : min= 5, max= 27, avg=13.27, stdev= 4.72, samples=55 write: IOPS=13, BW=216KiB/s (222kB/s)(6032KiB/27880msec); 0 zone resets clat (usec): min=1537, max=170197, avg=30793.21, stdev=28571.51 lat (usec): min=1538, max=170199, avg=30800.12, stdev=28573.12 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2737], 10.00th=[ 4080], 20.00th=[ 6718], | 30.00th=[ 9372], 40.00th=[ 17171], 50.00th=[ 23200], 60.00th=[ 29492], | 70.00th=[ 39060], 80.00th=[ 52691], 90.00th=[ 66323], 95.00th=[ 87557], | 99.00th=[131597], 99.50th=[145753], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 31, max= 475, per=24.86%, avg=214.56, stdev=87.47, samples=55 iops : min= 1, max= 29, avg=12.65, stdev= 5.49, samples=55 lat (usec) : 50=0.52%, 100=4.17%, 250=0.26%, 750=0.13% lat (msec) : 2=0.65%, 4=3.91%, 10=11.33%, 20=10.94%, 50=42.84% lat (msec) : 100=21.88%, 250=3.39% cpu : usr=0.06%, sys=6.31%, 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=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=178586: Sat Aug 15 18:53:50 2026 read: IOPS=13, BW=217KiB/s (223kB/s)(6032KiB/27737msec) clat (usec): min=39, max=205820, avg=39619.68, stdev=27528.12 lat (usec): min=39, max=205821, avg=39623.90, stdev=27530.37 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 89], 20.00th=[ 20055], | 30.00th=[ 25560], 40.00th=[ 30802], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 49546], 80.00th=[ 57934], 90.00th=[ 70779], 95.00th=[ 84411], | 99.00th=[132645], 99.50th=[164627], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 31, max= 383, per=26.34%, avg=215.98, stdev=80.85, samples=54 iops : min= 1, max= 23, avg=12.74, stdev= 5.02, samples=54 write: IOPS=14, BW=226KiB/s (231kB/s)(6256KiB/27737msec); 0 zone resets clat (usec): min=1696, max=164650, avg=32455.87, stdev=31348.50 lat (usec): min=1698, max=164652, avg=32472.93, stdev=31338.51 clat percentiles (usec): | 1.00th=[ 1893], 5.00th=[ 2278], 10.00th=[ 3490], 20.00th=[ 7046], | 30.00th=[ 9896], 40.00th=[ 15664], 50.00th=[ 21365], 60.00th=[ 30016], | 70.00th=[ 42206], 80.00th=[ 52167], 90.00th=[ 74974], 95.00th=[ 98042], | 99.00th=[141558], 99.50th=[149947], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 31, max= 445, per=25.92%, avg=223.70, stdev=78.72, samples=54 iops : min= 1, max= 27, avg=13.22, stdev= 4.96, samples=54 lat (usec) : 50=0.39%, 100=4.95%, 250=0.13%, 500=0.13%, 750=0.26% lat (usec) : 1000=0.26% lat (msec) : 2=1.30%, 4=4.43%, 10=9.77%, 20=12.89%, 50=39.58% lat (msec) : 100=22.40%, 250=3.52% cpu : usr=0.06%, sys=6.54%, ctx=1715, 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=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=821KiB/s (841kB/s), 197KiB/s-224KiB/s (202kB/s-230kB/s), io=23.4MiB (24.5MB), run=27737-29178msec WRITE: bw=864KiB/s (884kB/s), 216KiB/s-226KiB/s (222kB/s-231kB/s), io=24.6MiB (25.8MB), run=27737-29178msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178579: Sat Aug 15 18:54:05 2026 read: IOPS=8, BW=135KiB/s (138kB/s)(5920KiB/43781msec) clat (msec): min=7, max=218, avg=45.25, stdev=33.05 lat (msec): min=7, max=218, avg=45.25, stdev=33.05 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 50], 80.00th=[ 63], 90.00th=[ 91], 95.00th=[ 124], | 99.00th=[ 159], 99.50th=[ 186], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 31, max= 318, per=24.70%, avg=134.86, stdev=63.71, samples=85 iops : min= 1, max= 19, avg= 7.66, stdev= 4.01, samples=85 write: IOPS=9, BW=145KiB/s (149kB/s)(6368KiB/43781msec); 0 zone resets clat (msec): min=18, max=326, avg=67.60, stdev=38.60 lat (msec): min=18, max=326, avg=67.60, stdev=38.60 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 28], 10.00th=[ 32], 20.00th=[ 39], | 30.00th=[ 45], 40.00th=[ 52], 50.00th=[ 58], 60.00th=[ 68], | 70.00th=[ 77], 80.00th=[ 90], 90.00th=[ 113], 95.00th=[ 138], | 99.00th=[ 207], 99.50th=[ 275], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 311, per=25.10%, avg=144.07, stdev=65.39, samples=86 iops : min= 1, max= 19, avg= 8.23, stdev= 4.16, samples=86 lat (msec) : 10=0.13%, 20=7.29%, 50=46.61%, 100=35.68%, 250=10.03% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=2.35%, ctx=1251, 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=178580: Sat Aug 15 18:54:05 2026 read: IOPS=8, BW=132KiB/s (135kB/s)(5744KiB/43539msec) clat (msec): min=9, max=312, avg=45.14, stdev=35.77 lat (msec): min=9, max=312, avg=45.14, stdev=35.77 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 23], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 59], 90.00th=[ 91], 95.00th=[ 118], | 99.00th=[ 169], 99.50th=[ 188], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 351, per=24.62%, avg=134.42, stdev=72.86, samples=84 iops : min= 1, max= 21, avg= 7.62, stdev= 4.63, samples=84 write: IOPS=9, BW=150KiB/s (154kB/s)(6544KiB/43539msec); 0 zone resets clat (msec): min=17, max=268, avg=66.16, stdev=36.58 lat (msec): min=17, max=268, avg=66.16, stdev=36.58 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 27], 10.00th=[ 32], 20.00th=[ 39], | 30.00th=[ 45], 40.00th=[ 51], 50.00th=[ 59], 60.00th=[ 66], | 70.00th=[ 73], 80.00th=[ 88], 90.00th=[ 114], 95.00th=[ 130], | 99.00th=[ 218], 99.50th=[ 228], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 380, per=26.06%, avg=149.59, stdev=66.27, samples=86 iops : min= 1, max= 23, avg= 8.58, stdev= 4.16, samples=86 lat (msec) : 10=0.26%, 20=7.68%, 50=47.27%, 100=33.59%, 250=10.94% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=2.15%, ctx=1196, 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=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=178581: Sat Aug 15 18:54:05 2026 read: IOPS=9, BW=144KiB/s (148kB/s)(6256KiB/43344msec) clat (msec): min=7, max=258, avg=44.25, stdev=35.80 lat (msec): min=7, max=258, avg=44.26, stdev=35.80 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 47], 80.00th=[ 59], 90.00th=[ 86], 95.00th=[ 126], | 99.00th=[ 174], 99.50th=[ 245], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 30, max= 381, per=26.56%, avg=145.01, stdev=83.41, samples=85 iops : min= 1, max= 23, avg= 8.29, stdev= 5.30, samples=85 write: IOPS=8, BW=139KiB/s (143kB/s)(6032KiB/43344msec); 0 zone resets clat (msec): min=11, max=301, avg=68.96, stdev=39.41 lat (msec): min=11, max=301, avg=68.96, stdev=39.41 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 28], 10.00th=[ 33], 20.00th=[ 38], | 30.00th=[ 45], 40.00th=[ 52], 50.00th=[ 60], 60.00th=[ 67], | 70.00th=[ 77], 80.00th=[ 93], 90.00th=[ 131], 95.00th=[ 150], | 99.00th=[ 203], 99.50th=[ 209], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 319, per=24.34%, avg=139.73, stdev=62.92, samples=84 iops : min= 1, max= 19, avg= 7.95, stdev= 3.97, samples=84 lat (msec) : 10=0.65%, 20=8.85%, 50=46.09%, 100=32.16%, 250=11.98% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=2.26%, ctx=1256, 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=178582: Sat Aug 15 18:54:05 2026 read: IOPS=8, BW=138KiB/s (141kB/s)(6032KiB/43828msec) clat (msec): min=9, max=314, avg=44.13, stdev=35.15 lat (msec): min=9, max=314, avg=44.13, stdev=35.15 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 38], | 70.00th=[ 46], 80.00th=[ 60], 90.00th=[ 88], 95.00th=[ 124], | 99.00th=[ 165], 99.50th=[ 188], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 30, max= 319, per=25.12%, avg=137.18, stdev=71.99, samples=85 iops : min= 1, max= 19, avg= 7.80, stdev= 4.57, samples=85 write: IOPS=8, BW=143KiB/s (146kB/s)(6256KiB/43828msec); 0 zone resets clat (msec): min=15, max=322, avg=68.71, stdev=39.39 lat (msec): min=15, max=322, avg=68.72, stdev=39.39 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 28], 10.00th=[ 33], 20.00th=[ 40], | 30.00th=[ 46], 40.00th=[ 53], 50.00th=[ 62], 60.00th=[ 69], | 70.00th=[ 77], 80.00th=[ 91], 90.00th=[ 116], 95.00th=[ 134], | 99.00th=[ 230], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 287, per=24.67%, avg=141.58, stdev=58.92, samples=86 iops : min= 1, max= 17, avg= 8.07, stdev= 3.73, samples=86 lat (msec) : 10=0.26%, 20=9.11%, 50=44.66%, 100=34.64%, 250=10.81% lat (msec) : 500=0.52% cpu : usr=0.05%, sys=2.32%, ctx=1220, 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=546KiB/s (560kB/s), 132KiB/s-144KiB/s (135kB/s-148kB/s), io=23.4MiB (24.5MB), run=43344-43828msec WRITE: bw=575KiB/s (589kB/s), 139KiB/s-150KiB/s (143kB/s-154kB/s), io=24.6MiB (25.8MB), run=43344-43828msec 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=178597: Sat Aug 15 18:54:24 2026 read: IOPS=1, BW=1177KiB/s (1205kB/s)(7168KiB/6091msec) clat (usec): min=468, max=325996, avg=211240.88, stdev=116185.51 lat (usec): min=469, max=325997, avg=211242.47, stdev=116185.30 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[112722], | 30.00th=[214959], 40.00th=[214959], 50.00th=[252707], 60.00th=[267387], | 70.00th=[267387], 80.00th=[304088], 90.00th=[325059], 95.00th=[325059], | 99.00th=[325059], 99.50th=[325059], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 1914, max= 3737, per=73.88%, avg=2311.80, stdev=797.68, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=841KiB/s (861kB/s)(5120KiB/6091msec); 0 zone resets clat (msec): min=338, max=2870, avg=896.72, stdev=1104.49 lat (msec): min=338, max=2870, avg=897.44, stdev=1104.13 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 380], 40.00th=[ 380], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 2869], 95.00th=[ 2869], | 99.00th=[ 2869], 99.50th=[ 2869], 99.90th=[ 2869], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 1935, max= 3984, per=60.22%, avg=2638.33, stdev=1165.78, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=8.33% lat (msec) : 250=16.67%, 500=66.67%, >=2000=8.33% cpu : usr=0.00%, sys=7.75%, ctx=229, 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=178598: Sat Aug 15 18:54:24 2026 read: IOPS=0, BW=327KiB/s (335kB/s)(2048KiB/6263msec) clat (msec): min=233, max=252, avg=242.91, stdev=13.37 lat (msec): min=233, max=252, avg=242.91, stdev=13.37 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 234], 60.00th=[ 253], | 70.00th=[ 253], 80.00th=[ 253], 90.00th=[ 253], 95.00th=[ 253], | 99.00th=[ 253], 99.50th=[ 253], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 1896, max= 1996, per=62.19%, avg=1946.00, stdev=70.71, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1635KiB/s (1674kB/s)(10.0MiB/6263msec); 0 zone resets clat (msec): min=73, max=2390, avg=563.15, stdev=691.73 lat (msec): min=73, max=2390, avg=563.22, stdev=691.73 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 78], | 30.00th=[ 83], 40.00th=[ 271], 50.00th=[ 292], 60.00th=[ 426], | 70.00th=[ 493], 80.00th=[ 760], 90.00th=[ 768], 95.00th=[ 2400], | 99.00th=[ 2400], 99.50th=[ 2400], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 1914, max= 6131, per=68.18%, avg=2987.17, stdev=1716.20, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 100=25.00%, 250=8.33%, 500=41.67%, 1000=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=7.92%, ctx=130, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178599: Sat Aug 15 18:54:24 2026 read: IOPS=0, BW=939KiB/s (961kB/s)(6144KiB/6544msec) clat (usec): min=562, max=3445.5k, avg=620317.36, stdev=1386813.55 lat (usec): min=564, max=3445.5k, avg=620318.64, stdev=1386813.70 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], | 20.00th=[ 586], 30.00th=[ 586], 40.00th=[ 1975], | 50.00th=[ 1975], 60.00th=[ 45876], 70.00th=[ 227541], | 80.00th=[ 227541], 90.00th=[3439330], 95.00th=[3439330], | 99.00th=[3439330], 99.50th=[3439330], 99.90th=[3439330], | 99.95th=[3439330], 99.99th=[3439330] bw ( KiB/s): min= 3828, max= 4015, per=100.00%, avg=3921.50, stdev=132.23, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=0, BW=939KiB/s (961kB/s)(6144KiB/6544msec); 0 zone resets clat (msec): min=122, max=1239, avg=457.33, stdev=411.85 lat (msec): min=122, max=1239, avg=457.41, stdev=411.86 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 351], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 1914, max= 1992, per=44.42%, avg=1946.00, stdev=35.06, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=16.67% lat (msec) : 2=8.33%, 50=8.33%, 250=25.00%, 500=16.67%, 750=8.33% lat (msec) : 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=7.55%, ctx=580, 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=178600: Sat Aug 15 18:54:24 2026 read: IOPS=1, BW=1468KiB/s (1503kB/s)(5120KiB/3488msec) clat (usec): min=515, max=307483, avg=147205.95, stdev=141325.09 lat (usec): min=515, max=307485, avg=147206.94, stdev=141325.20 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[ 515], | 30.00th=[ 529], 40.00th=[ 529], 50.00th=[179307], 60.00th=[179307], | 70.00th=[248513], 80.00th=[248513], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 1914, max= 5976, per=100.00%, avg=3945.00, stdev=2872.27, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2055KiB/s (2104kB/s)(7168KiB/3488msec); 0 zone resets clat (msec): min=295, max=620, avg=387.20, stdev=115.04 lat (msec): min=295, max=620, avg=387.30, stdev=115.06 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 384], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 426], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1861, max= 1996, per=44.10%, avg=1932.00, stdev=49.88, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=16.67% lat (msec) : 250=16.67%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=10.84%, ctx=138, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3130KiB/s (3205kB/s), 327KiB/s-1468KiB/s (335kB/s-1503kB/s), io=20.0MiB (20.0MB), run=3488-6544msec WRITE: bw=4381KiB/s (4487kB/s), 841KiB/s-2055KiB/s (861kB/s-2104kB/s), io=28.0MiB (29.4MB), run=3488-6544msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178602: Sat Aug 15 18:54:26 2026 read: IOPS=0, BW=899KiB/s (920kB/s)(7168KiB/7975msec) clat (msec): min=102, max=867, avg=455.03, stdev=321.69 lat (msec): min=102, max=867, avg=455.03, stdev=321.69 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 148], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 376], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 827], 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= 1885, max= 2048, per=80.28%, avg=1998.20, stdev=67.00, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=0, BW=642KiB/s (657kB/s)(5120KiB/7975msec); 0 zone resets clat (msec): min=90, max=3840, avg=944.80, stdev=1621.93 lat (msec): min=90, max=3840, avg=945.11, stdev=1621.80 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 91], | 30.00th=[ 180], 40.00th=[ 180], 50.00th=[ 257], 60.00th=[ 257], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 3842], 95.00th=[ 3842], | 99.00th=[ 3842], 99.50th=[ 3842], 99.90th=[ 3842], 99.95th=[ 3842], | 99.99th=[ 3842] bw ( KiB/s): min= 2019, max= 4087, per=77.77%, avg=2709.67, stdev=1192.81, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=8.33%, 1000=16.67% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.24%, ctx=74, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178603: Sat Aug 15 18:54:26 2026 read: IOPS=0, BW=266KiB/s (272kB/s)(2048KiB/7712msec) clat (msec): min=334, max=490, avg=412.59, stdev=110.26 lat (msec): min=334, max=490, avg=412.59, stdev=110.26 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 1381, max= 2031, per=68.54%, avg=1706.00, stdev=459.62, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1328KiB/s (1360kB/s)(10.0MiB/7712msec); 0 zone resets clat (msec): min=153, max=3530, avg=672.90, stdev=1030.78 lat (msec): min=153, max=3531, avg=673.08, stdev=1030.97 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 220], 50.00th=[ 239], 60.00th=[ 249], | 70.00th=[ 550], 80.00th=[ 592], 90.00th=[ 844], 95.00th=[ 3540], | 99.00th=[ 3540], 99.50th=[ 3540], 99.90th=[ 3540], 99.95th=[ 3540], | 99.99th=[ 3540] bw ( KiB/s): min= 1914, max= 4087, per=80.67%, avg=2810.40, stdev=1158.50, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.02%, ctx=122, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=178604: Sat Aug 15 18:54:26 2026 read: IOPS=0, BW=810KiB/s (829kB/s)(6144KiB/7586msec) clat (msec): min=107, max=2937, avg=687.42, stdev=1117.10 lat (msec): min=107, max=2937, avg=687.42, stdev=1117.10 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 220], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 2937], 95.00th=[ 2937], | 99.00th=[ 2937], 99.50th=[ 2937], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 2031, max= 3976, per=100.00%, avg=2521.25, stdev=969.85, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=810KiB/s (829kB/s)(6144KiB/7586msec); 0 zone resets clat (msec): min=147, max=1495, avg=545.05, stdev=496.71 lat (msec): min=148, max=1496, avg=545.36, stdev=496.58 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 451], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 1350, max= 2035, per=53.59%, avg=1867.00, stdev=291.59, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=50.00%, 500=16.67%, 750=16.67%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.53%, ctx=128, 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=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=178605: Sat Aug 15 18:54:26 2026 read: IOPS=0, BW=622KiB/s (637kB/s)(5120KiB/8228msec) clat (msec): min=104, max=427, avg=237.03, stdev=122.85 lat (msec): min=104, max=427, avg=237.03, stdev=122.85 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 207], 60.00th=[ 207], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 4071, max= 4079, per=100.00%, avg=4075.00, stdev= 5.66, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=0, BW=871KiB/s (892kB/s)(7168KiB/8228msec); 0 zone resets clat (msec): min=141, max=3961, avg=993.11, stdev=1384.30 lat (msec): min=141, max=3961, avg=993.18, stdev=1384.30 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 150], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 460], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 1435], 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= 1350, max= 2043, per=54.28%, avg=1891.00, stdev=303.10, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.38%, ctx=63, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2489KiB/s (2549kB/s), 266KiB/s-899KiB/s (272kB/s-920kB/s), io=20.0MiB (20.0MB), run=7586-8228msec WRITE: bw=3485KiB/s (3568kB/s), 642KiB/s-1328KiB/s (657kB/s-1360kB/s), io=28.0MiB (29.4MB), run=7586-8228msec 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=178612: Sat Aug 15 18:54:39 2026 read: IOPS=2, BW=10.4MiB/s (10.9MB/s)(12.0MiB/1157msec) clat (msec): min=220, max=460, avg=355.45, stdev=122.82 lat (msec): min=220, max=460, avg=355.45, stdev=122.82 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 5665, max= 5665, per=100.00%, avg=5665.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=66.67% cpu : usr=0.00%, sys=10.03%, ctx=43, 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=178613: Sat Aug 15 18:54:39 2026 read: IOPS=0, BW=1097KiB/s (1123kB/s)(4096KiB/3734msec) clat (nsec): min=964176k, max=964176k, avg=964176012.00, stdev= 0.00 lat (nsec): min=964178k, max=964178k, avg=964178275.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 961], 5.00th=[ 961], 10.00th=[ 961], 20.00th=[ 961], | 30.00th=[ 961], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 961], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2194KiB/s (2247kB/s)(8192KiB/3734msec); 0 zone resets clat (msec): min=1131, max=1446, avg=1289.02, stdev=223.23 lat (msec): min=1131, max=1449, avg=1290.45, stdev=224.36 clat percentiles (msec): | 1.00th=[ 1133], 5.00th=[ 1133], 10.00th=[ 1133], 20.00th=[ 1133], | 30.00th=[ 1133], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1452], | 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= 8159, max= 8159, per=92.98%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.13%, ctx=67, 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=178614: Sat Aug 15 18:54:39 2026 write: IOPS=1, BW=4712KiB/s (4825kB/s)(12.0MiB/2608msec); 0 zone resets clat (msec): min=491, max=1420, avg=830.71, stdev=512.40 lat (msec): min=491, max=1421, avg=831.44, stdev=512.94 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 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=16253, max=16253, per=100.00%, avg=16253.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.79%, ctx=61, 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=178615: Sat Aug 15 18:54:39 2026 write: IOPS=1, BW=4808KiB/s (4923kB/s)(12.0MiB/2556msec); 0 zone resets clat (msec): min=478, max=1001, avg=755.83, stdev=263.05 lat (msec): min=478, max=1001, avg=756.31, stdev=263.04 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8094, max= 8126, per=92.42%, avg=8110.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.36%, ctx=74, 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=4388KiB/s (4493kB/s), 1097KiB/s-10.4MiB/s (1123kB/s-10.9MB/s), io=16.0MiB (16.8MB), run=1157-3734msec WRITE: bw=8776KiB/s (8986kB/s), 2194KiB/s-4808KiB/s (2247kB/s-4923kB/s), io=32.0MiB (33.6MB), run=2556-3734msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178617: Sat Aug 15 18:54:39 2026 read: IOPS=1, BW=5207KiB/s (5332kB/s)(12.0MiB/2360msec) clat (msec): min=777, max=792, avg=786.37, stdev= 8.14 lat (msec): min=777, max=792, avg=786.37, stdev= 8.14 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 8047, max= 8159, per=100.00%, avg=8103.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=12.76%, ctx=285, 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=178618: Sat Aug 15 18:54:39 2026 read: IOPS=0, BW=1466KiB/s (1501kB/s)(4096KiB/2794msec) clat (nsec): min=837994k, max=837994k, avg=837994307.00, stdev= 0.00 lat (nsec): min=837996k, max=837996k, avg=837996474.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2932KiB/s (3002kB/s)(8192KiB/2794msec); 0 zone resets clat (msec): min=631, max=1320, avg=976.40, stdev=487.07 lat (msec): min=632, max=1321, avg=977.08, stdev=487.49 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8062, max= 8062, per=68.75%, avg=8062.00, 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=5.76%, ctx=97, 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=178619: Sat Aug 15 18:54:39 2026 write: IOPS=1, BW=4583KiB/s (4693kB/s)(12.0MiB/2681msec); 0 zone resets clat (msec): min=747, max=1135, avg=891.81, stdev=212.31 lat (msec): min=749, max=1136, avg=892.75, stdev=211.87 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 8047, max= 8159, per=69.10%, avg=8103.00, stdev=79.20, 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=0.19%, sys=7.05%, ctx=74, 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=178620: Sat Aug 15 18:54:39 2026 write: IOPS=1, BW=6282KiB/s (6433kB/s)(12.0MiB/1956msec); 0 zone resets clat (msec): min=213, max=974, avg=650.78, stdev=393.25 lat (msec): min=213, max=975, avg=651.56, stdev=393.50 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 978], 80.00th=[ 978], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min=16094, max=16094, per=100.00%, avg=16094.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=66.67% cpu : usr=0.00%, sys=5.58%, ctx=53, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5864KiB/s (6005kB/s), 1466KiB/s-5207KiB/s (1501kB/s-5332kB/s), io=16.0MiB (16.8MB), run=2360-2794msec WRITE: bw=11.5MiB/s (12.0MB/s), 2932KiB/s-6282KiB/s (3002kB/s-6433kB/s), io=32.0MiB (33.6MB), run=1956-2794msec