== sanity test 398b: DIO and buffer IO race ============== 23:15:40 (1787368540) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.69829 s, 7.5 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=145946: Fri Aug 21 23:18:02 2026 read: IOPS=12, BW=49.7KiB/s (50.9kB/s)(5992KiB/120517msec) clat (usec): min=32, max=226666, avg=38721.88, stdev=30335.45 lat (usec): min=32, max=226667, avg=38723.25, stdev=30335.30 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 79], 20.00th=[ 17171], | 30.00th=[ 22414], 40.00th=[ 26870], 50.00th=[ 32113], 60.00th=[ 38536], | 70.00th=[ 48497], 80.00th=[ 59507], 90.00th=[ 74974], 95.00th=[ 92799], | 99.00th=[152044], 99.50th=[175113], 99.90th=[214959], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 7, max= 126, per=25.20%, avg=49.65, stdev=21.22, samples=234 iops : min= 1, max= 31, avg=11.76, stdev= 5.34, samples=234 write: IOPS=13, BW=52.2KiB/s (53.5kB/s)(6296KiB/120517msec); 0 zone resets clat (usec): min=767, max=805681, avg=39421.31, stdev=47470.88 lat (usec): min=768, max=805682, avg=39430.34, stdev=47480.09 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1401], 20.00th=[ 3326], | 30.00th=[ 6718], 40.00th=[ 15533], 50.00th=[ 27132], 60.00th=[ 38536], | 70.00th=[ 51643], 80.00th=[ 66847], 90.00th=[ 92799], 95.00th=[121111], | 99.00th=[185598], 99.50th=[258999], 99.90th=[392168], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 7, max= 150, per=25.05%, avg=51.84, stdev=22.97, samples=236 iops : min= 1, max= 37, avg=12.31, stdev= 5.78, samples=236 lat (usec) : 50=0.65%, 100=4.52%, 250=0.29%, 500=0.10%, 750=0.07% lat (usec) : 1000=0.26% lat (msec) : 2=6.87%, 4=4.56%, 10=6.87%, 20=10.38%, 50=35.64% lat (msec) : 100=23.70%, 250=5.83%, 500=0.23%, 1000=0.03% cpu : usr=0.08%, sys=4.84%, ctx=6229, 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=145947: Fri Aug 21 23:18:02 2026 read: IOPS=12, BW=49.9KiB/s (51.1kB/s)(5940KiB/119111msec) clat (usec): min=33, max=834125, avg=38786.71, stdev=35458.69 lat (usec): min=33, max=834126, avg=38788.45, stdev=35458.33 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 61], 10.00th=[ 169], 20.00th=[ 17695], | 30.00th=[ 22414], 40.00th=[ 27132], 50.00th=[ 32375], 60.00th=[ 39060], | 70.00th=[ 46924], 80.00th=[ 56886], 90.00th=[ 74974], 95.00th=[ 88605], | 99.00th=[139461], 99.50th=[179307], 99.90th=[214959], 99.95th=[834667], | 99.99th=[834667] bw ( KiB/s): min= 7, max= 111, per=25.30%, avg=49.84, stdev=20.49, samples=233 iops : min= 1, max= 27, avg=11.82, stdev= 5.15, samples=233 write: IOPS=13, BW=53.3KiB/s (54.6kB/s)(6348KiB/119111msec); 0 zone resets clat (usec): min=921, max=276739, avg=38431.40, stdev=39943.39 lat (usec): min=922, max=276741, avg=38434.83, stdev=39942.23 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1434], 20.00th=[ 3261], | 30.00th=[ 7177], 40.00th=[ 16909], 50.00th=[ 28181], 60.00th=[ 38536], | 70.00th=[ 51119], 80.00th=[ 67634], 90.00th=[ 92799], 95.00th=[114820], | 99.00th=[168821], 99.50th=[204473], 99.90th=[250610], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 142, per=25.75%, avg=53.30, stdev=23.32, samples=233 iops : min= 1, max= 35, avg=12.68, stdev= 5.86, samples=233 lat (usec) : 50=0.33%, 100=4.33%, 250=0.23%, 500=0.16%, 1000=0.23% lat (msec) : 2=6.77%, 4=5.21%, 10=5.86%, 20=10.42%, 50=37.21% lat (msec) : 100=23.80%, 250=5.40%, 500=0.03%, 1000=0.03% cpu : usr=0.07%, sys=4.92%, ctx=6236, 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=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=145949: Fri Aug 21 23:18:02 2026 read: IOPS=12, BW=49.7KiB/s (50.9kB/s)(6028KiB/121354msec) clat (usec): min=32, max=277347, avg=37963.77, stdev=28470.68 lat (usec): min=32, max=277348, avg=37966.29, stdev=28469.17 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 120], 20.00th=[ 17695], | 30.00th=[ 22414], 40.00th=[ 27395], 50.00th=[ 32637], 60.00th=[ 38011], | 70.00th=[ 46400], 80.00th=[ 56361], 90.00th=[ 73925], 95.00th=[ 89654], | 99.00th=[129500], 99.50th=[149947], 99.90th=[206570], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 134, per=25.25%, avg=49.75, stdev=22.77, samples=236 iops : min= 1, max= 33, avg=11.79, stdev= 5.72, samples=236 write: IOPS=12, BW=51.6KiB/s (52.8kB/s)(6260KiB/121354msec); 0 zone resets clat (usec): min=772, max=975764, avg=40640.55, stdev=48382.64 lat (usec): min=773, max=975777, avg=40646.28, stdev=48380.57 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1385], 20.00th=[ 3785], | 30.00th=[ 8029], 40.00th=[ 17695], 50.00th=[ 27657], 60.00th=[ 38536], | 70.00th=[ 53216], 80.00th=[ 70779], 90.00th=[ 96994], 95.00th=[123208], | 99.00th=[177210], 99.50th=[206570], 99.90th=[450888], 99.95th=[977273], | 99.99th=[977273] bw ( KiB/s): min= 7, max= 134, per=24.86%, avg=51.46, stdev=21.98, samples=237 iops : min= 1, max= 33, avg=12.23, stdev= 5.55, samples=237 lat (usec) : 50=0.65%, 100=4.13%, 250=0.39%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=6.87%, 4=3.65%, 10=6.71%, 20=10.87%, 50=37.14% lat (msec) : 100=23.08%, 250=6.05%, 500=0.13%, 1000=0.03% cpu : usr=0.06%, sys=4.82%, ctx=6363, 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=145950: Fri Aug 21 23:18:02 2026 read: IOPS=12, BW=50.6KiB/s (51.8kB/s)(6052KiB/119575msec) clat (usec): min=33, max=820011, avg=38527.83, stdev=36515.72 lat (usec): min=33, max=820012, avg=38540.24, stdev=36518.35 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 58], 10.00th=[ 74], 20.00th=[ 16909], | 30.00th=[ 21365], 40.00th=[ 26870], 50.00th=[ 31589], 60.00th=[ 38536], | 70.00th=[ 46400], 80.00th=[ 60031], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[135267], 99.50th=[177210], 99.90th=[329253], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 5, max= 151, per=25.71%, avg=50.64, stdev=23.61, samples=233 iops : min= 1, max= 37, avg=12.01, stdev= 5.94, samples=233 write: IOPS=13, BW=52.2KiB/s (53.4kB/s)(6236KiB/119575msec); 0 zone resets clat (usec): min=695, max=463687, avg=38997.73, stdev=41835.81 lat (usec): min=696, max=463689, avg=39003.10, stdev=41836.07 clat percentiles (usec): | 1.00th=[ 1012], 5.00th=[ 1172], 10.00th=[ 1352], 20.00th=[ 3621], | 30.00th=[ 7111], 40.00th=[ 17433], 50.00th=[ 28181], 60.00th=[ 39060], | 70.00th=[ 52167], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[113771], | 99.00th=[181404], 99.50th=[202376], 99.90th=[316670], 99.95th=[463471], | 99.99th=[463471] bw ( KiB/s): min= 7, max= 126, per=25.13%, avg=52.02, stdev=23.04, samples=233 iops : min= 1, max= 31, avg=12.36, stdev= 5.80, samples=233 lat (usec) : 50=1.07%, 100=4.52%, 250=0.26%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.33% lat (msec) : 2=6.61%, 4=3.84%, 10=6.90%, 20=11.04%, 50=36.10% lat (msec) : 100=23.11%, 250=5.73%, 500=0.20%, 1000=0.03% cpu : usr=0.07%, sys=4.88%, ctx=6351, 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=198KiB/s (203kB/s), 49.7KiB/s-50.6KiB/s (50.9kB/s-51.8kB/s), io=23.4MiB (24.6MB), run=119111-121354msec WRITE: bw=207KiB/s (212kB/s), 51.6KiB/s-53.3KiB/s (52.8kB/s-54.6kB/s), io=24.6MiB (25.7MB), run=119111-121354msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145951: Fri Aug 21 23:20:09 2026 read: IOPS=6, BW=24.6KiB/s (25.1kB/s)(5992KiB/244009msec) clat (msec): min=4, max=678, avg=33.49, stdev=37.96 lat (msec): min=4, max=678, avg=33.49, stdev=37.96 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 73], 95.00th=[ 100], | 99.00th=[ 163], 99.50th=[ 213], 99.90th=[ 414], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 118, per=27.83%, avg=26.71, stdev=19.08, samples=435 iops : min= 1, max= 29, avg= 6.10, stdev= 4.81, samples=435 write: IOPS=6, BW=25.8KiB/s (26.4kB/s)(6296KiB/244009msec); 0 zone resets clat (msec): min=31, max=514, avg=122.93, stdev=57.32 lat (msec): min=31, max=514, avg=122.93, stdev=57.32 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 56], 10.00th=[ 65], 20.00th=[ 79], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 123], | 70.00th=[ 142], 80.00th=[ 167], 90.00th=[ 203], 95.00th=[ 232], | 99.00th=[ 309], 99.50th=[ 342], 99.90th=[ 439], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 7, max= 56, per=25.28%, avg=25.53, stdev=11.48, samples=477 iops : min= 1, max= 14, avg= 5.79, stdev= 2.94, samples=477 lat (msec) : 10=5.86%, 20=16.44%, 50=19.30%, 100=26.69%, 250=29.75% lat (msec) : 500=1.89%, 750=0.07% cpu : usr=0.04%, sys=1.14%, ctx=5156, 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=145952: Fri Aug 21 23:20:09 2026 read: IOPS=6, BW=24.0KiB/s (24.6kB/s)(5940KiB/247001msec) clat (msec): min=4, max=863, avg=32.04, stdev=37.81 lat (msec): min=4, max=863, avg=32.05, stdev=37.81 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 75], 95.00th=[ 101], | 99.00th=[ 153], 99.50th=[ 176], 99.90th=[ 292], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 88, per=27.36%, avg=26.27, stdev=18.25, samples=438 iops : min= 1, max= 22, avg= 5.98, stdev= 4.63, samples=438 write: IOPS=6, BW=25.7KiB/s (26.3kB/s)(6348KiB/247001msec); 0 zone resets clat (msec): min=30, max=594, avg=125.43, stdev=60.45 lat (msec): min=30, max=594, avg=125.44, stdev=60.45 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 79], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 110], 60.00th=[ 123], | 70.00th=[ 140], 80.00th=[ 165], 90.00th=[ 205], 95.00th=[ 245], | 99.00th=[ 321], 99.50th=[ 368], 99.90th=[ 485], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 56, per=25.04%, avg=25.29, stdev=11.49, samples=485 iops : min= 1, max= 14, avg= 5.73, stdev= 2.93, samples=485 lat (msec) : 10=5.79%, 20=18.42%, 50=16.99%, 100=25.65%, 250=30.63% lat (msec) : 500=2.44%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.08%, ctx=4984, 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=145953: Fri Aug 21 23:20:09 2026 read: IOPS=6, BW=24.3KiB/s (24.9kB/s)(6028KiB/247716msec) clat (msec): min=4, max=426, avg=33.60, stdev=34.95 lat (msec): min=4, max=426, avg=33.61, stdev=34.95 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 47], 90.00th=[ 78], 95.00th=[ 100], | 99.00th=[ 157], 99.50th=[ 197], 99.90th=[ 409], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 7, max= 104, per=27.26%, avg=26.17, stdev=17.29, samples=447 iops : min= 1, max= 26, avg= 5.96, stdev= 4.39, samples=447 write: IOPS=6, BW=25.3KiB/s (25.9kB/s)(6260KiB/247716msec); 0 zone resets clat (msec): min=25, max=976, avg=125.74, stdev=64.96 lat (msec): min=25, max=976, avg=125.75, stdev=64.96 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 64], 20.00th=[ 78], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 112], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 163], 90.00th=[ 207], 95.00th=[ 243], | 99.00th=[ 334], 99.50th=[ 393], 99.90th=[ 600], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 72, per=24.74%, avg=24.99, stdev=12.28, samples=485 iops : min= 1, max= 18, avg= 5.65, stdev= 3.15, samples=485 lat (msec) : 10=4.85%, 20=17.19%, 50=19.56%, 100=25.72%, 250=30.31% lat (msec) : 500=2.31%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.05%, ctx=5025, 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=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=145954: Fri Aug 21 23:20:09 2026 read: IOPS=6, BW=24.7KiB/s (25.3kB/s)(6052KiB/245201msec) clat (msec): min=4, max=453, avg=32.83, stdev=33.53 lat (msec): min=4, max=453, avg=32.84, stdev=33.53 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 47], 90.00th=[ 73], 95.00th=[ 97], | 99.00th=[ 150], 99.50th=[ 197], 99.90th=[ 296], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 7, max= 120, per=28.14%, avg=27.02, stdev=18.04, samples=435 iops : min= 1, max= 30, avg= 6.17, stdev= 4.57, samples=435 write: IOPS=6, BW=25.4KiB/s (26.0kB/s)(6236KiB/245201msec); 0 zone resets clat (msec): min=32, max=918, avg=125.19, stdev=63.60 lat (msec): min=32, max=918, avg=125.20, stdev=63.60 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 79], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 111], 60.00th=[ 126], | 70.00th=[ 142], 80.00th=[ 165], 90.00th=[ 201], 95.00th=[ 243], | 99.00th=[ 330], 99.50th=[ 384], 99.90th=[ 642], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 63, per=24.82%, avg=25.06, stdev=11.65, samples=482 iops : min= 1, max= 15, avg= 5.67, stdev= 2.99, samples=482 lat (msec) : 10=4.98%, 20=17.45%, 50=19.43%, 100=26.01%, 250=29.65% lat (msec) : 500=2.41%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.05%, ctx=5071, 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=96.9KiB/s (99.3kB/s), 24.0KiB/s-24.7KiB/s (24.6kB/s-25.3kB/s), io=23.4MiB (24.6MB), run=244009-247716msec WRITE: bw=101KiB/s (104kB/s), 25.3KiB/s-25.8KiB/s (25.9kB/s-26.4kB/s), io=24.6MiB (25.7MB), run=244009-247716msec 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=146007: Fri Aug 21 23:20:49 2026 read: IOPS=12, BW=204KiB/s (209kB/s)(5920KiB/28996msec) clat (usec): min=31, max=178669, avg=39833.51, stdev=34290.67 lat (usec): min=32, max=178670, avg=39834.65, stdev=34290.69 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 53], 10.00th=[ 63], 20.00th=[ 95], | 30.00th=[ 20055], 40.00th=[ 30016], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 65274], 90.00th=[ 79168], 95.00th=[106431], | 99.00th=[149947], 99.50th=[160433], 99.90th=[179307], 99.95th=[179307], | 99.99th=[179307] bw ( KiB/s): min= 31, max= 446, per=26.19%, avg=203.98, stdev=93.67, samples=57 iops : min= 1, max= 27, avg=11.95, stdev= 5.89, samples=57 write: IOPS=13, BW=220KiB/s (225kB/s)(6368KiB/28996msec); 0 zone resets clat (usec): min=1382, max=288210, avg=35625.75, stdev=43431.99 lat (usec): min=1383, max=288213, avg=35638.26, stdev=43433.76 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1614], 10.00th=[ 1811], 20.00th=[ 4424], | 30.00th=[ 7504], 40.00th=[ 11338], 50.00th=[ 20579], 60.00th=[ 30540], | 70.00th=[ 40109], 80.00th=[ 58459], 90.00th=[ 92799], 95.00th=[119014], | 99.00th=[221250], 99.50th=[244319], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 63, max= 411, per=26.73%, avg=218.95, stdev=81.22, samples=57 iops : min= 3, max= 25, avg=12.91, stdev= 5.13, samples=57 lat (usec) : 50=2.08%, 100=7.68%, 250=0.91%, 500=0.65%, 750=0.39% lat (usec) : 1000=0.13% lat (msec) : 2=5.47%, 4=4.69%, 10=9.77%, 20=8.07%, 50=32.42% lat (msec) : 100=20.18%, 250=7.42%, 500=0.13% cpu : usr=0.10%, sys=5.17%, ctx=1344, 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=146008: Fri Aug 21 23:20:49 2026 read: IOPS=11, BW=187KiB/s (191kB/s)(5744KiB/30735msec) clat (usec): min=42, max=192113, avg=43377.93, stdev=35379.08 lat (usec): min=42, max=192114, avg=43388.60, stdev=35381.08 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 60], 10.00th=[ 67], 20.00th=[ 11338], | 30.00th=[ 24511], 40.00th=[ 33162], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 56886], 80.00th=[ 69731], 90.00th=[ 86508], 95.00th=[109577], | 99.00th=[173016], 99.50th=[181404], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 27, max= 350, per=23.92%, avg=186.35, stdev=78.51, samples=60 iops : min= 1, max= 21, avg=10.85, stdev= 4.98, samples=60 write: IOPS=13, BW=213KiB/s (218kB/s)(6544KiB/30735msec); 0 zone resets clat (usec): min=1367, max=326768, avg=36359.81, stdev=41217.23 lat (usec): min=1369, max=326771, avg=36363.92, stdev=41215.91 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1647], 10.00th=[ 1942], 20.00th=[ 4817], | 30.00th=[ 7898], 40.00th=[ 13173], 50.00th=[ 20841], 60.00th=[ 31851], | 70.00th=[ 47973], 80.00th=[ 65799], 90.00th=[ 86508], 95.00th=[109577], | 99.00th=[181404], 99.50th=[206570], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 62, max= 478, per=26.03%, avg=213.20, stdev=94.60, samples=60 iops : min= 3, max= 29, avg=12.55, stdev= 5.96, samples=60 lat (usec) : 50=0.65%, 100=7.42%, 250=0.52%, 500=0.13%, 750=0.13% lat (msec) : 2=5.60%, 4=4.43%, 10=8.72%, 20=10.94%, 50=29.69% lat (msec) : 100=24.61%, 250=7.03%, 500=0.13% cpu : usr=0.09%, sys=4.82%, ctx=1404, 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=146009: Fri Aug 21 23:20:49 2026 read: IOPS=12, BW=204KiB/s (209kB/s)(6256KiB/30629msec) clat (usec): min=38, max=191923, avg=39482.54, stdev=31842.05 lat (usec): min=39, max=191924, avg=39484.93, stdev=31841.77 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 83], | 30.00th=[ 23200], 40.00th=[ 31065], 50.00th=[ 38536], 60.00th=[ 45351], | 70.00th=[ 53740], 80.00th=[ 62653], 90.00th=[ 76022], 95.00th=[ 93848], | 99.00th=[143655], 99.50th=[162530], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 62, max= 414, per=26.79%, avg=208.68, stdev=82.43, samples=59 iops : min= 3, max= 25, avg=12.25, stdev= 5.20, samples=59 write: IOPS=12, BW=197KiB/s (202kB/s)(6032KiB/30629msec); 0 zone resets clat (usec): min=1234, max=299175, avg=39414.03, stdev=43379.14 lat (usec): min=1236, max=299179, avg=39420.73, stdev=43375.44 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1745], 10.00th=[ 2311], 20.00th=[ 4113], | 30.00th=[ 8029], 40.00th=[ 13829], 50.00th=[ 23987], 60.00th=[ 36439], | 70.00th=[ 51643], 80.00th=[ 71828], 90.00th=[ 98042], 95.00th=[117965], | 99.00th=[196084], 99.50th=[225444], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 31, max= 443, per=23.84%, avg=195.27, stdev=83.93, samples=60 iops : min= 1, max= 27, avg=11.42, stdev= 5.31, samples=60 lat (usec) : 50=1.43%, 100=9.64%, 250=0.78%, 500=0.13% lat (msec) : 2=4.04%, 4=5.60%, 10=7.68%, 20=7.68%, 50=30.34% lat (msec) : 100=26.04%, 250=6.51%, 500=0.13% cpu : usr=0.09%, sys=5.07%, ctx=1442, 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=146010: Fri Aug 21 23:20:49 2026 read: IOPS=12, BW=199KiB/s (204kB/s)(6032KiB/30253msec) clat (usec): min=35, max=185183, avg=41769.72, stdev=36302.74 lat (usec): min=36, max=185185, avg=41771.25, stdev=36302.64 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 51], 10.00th=[ 58], 20.00th=[ 75], | 30.00th=[ 22938], 40.00th=[ 30278], 50.00th=[ 36439], 60.00th=[ 45351], | 70.00th=[ 55837], 80.00th=[ 69731], 90.00th=[ 89654], 95.00th=[110625], | 99.00th=[170918], 99.50th=[181404], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 31, max= 494, per=25.94%, avg=202.03, stdev=86.16, samples=58 iops : min= 1, max= 30, avg=11.83, stdev= 5.46, samples=58 write: IOPS=12, BW=207KiB/s (212kB/s)(6256KiB/30253msec); 0 zone resets clat (usec): min=1244, max=256265, avg=36099.52, stdev=42529.87 lat (usec): min=1244, max=256268, avg=36101.62, stdev=42529.95 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1680], 10.00th=[ 2147], 20.00th=[ 4359], | 30.00th=[ 7570], 40.00th=[ 11994], 50.00th=[ 21627], 60.00th=[ 31327], | 70.00th=[ 41681], 80.00th=[ 62129], 90.00th=[ 85459], 95.00th=[120062], | 99.00th=[204473], 99.50th=[252707], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 56, max= 477, per=25.31%, avg=207.29, stdev=93.40, samples=59 iops : min= 3, max= 29, avg=12.17, stdev= 5.90, samples=59 lat (usec) : 50=2.21%, 100=8.59%, 250=0.78%, 500=0.13%, 750=0.26% lat (msec) : 2=4.56%, 4=5.73%, 10=8.46%, 20=7.68%, 50=30.99% lat (msec) : 100=23.18%, 250=7.16%, 500=0.26% cpu : usr=0.07%, sys=5.02%, ctx=1395, 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=779KiB/s (798kB/s), 187KiB/s-204KiB/s (191kB/s-209kB/s), io=23.4MiB (24.5MB), run=28996-30735msec WRITE: bw=820KiB/s (840kB/s), 197KiB/s-220KiB/s (202kB/s-225kB/s), io=24.6MiB (25.8MB), run=28996-30735msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146002: Fri Aug 21 23:21:31 2026 read: IOPS=5, BW=82.7KiB/s (84.7kB/s)(5920KiB/71568msec) clat (msec): min=6, max=442, avg=39.26, stdev=46.90 lat (msec): min=6, max=442, avg=39.26, stdev=46.90 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 79], 95.00th=[ 136], | 99.00th=[ 228], 99.50th=[ 380], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 30, max= 287, per=28.91%, avg=95.99, stdev=63.90, samples=120 iops : min= 1, max= 17, avg= 5.27, stdev= 4.01, samples=120 write: IOPS=5, BW=88.0KiB/s (91.1kB/s)(6368KiB/71568msec); 0 zone resets clat (msec): min=35, max=540, avg=142.86, stdev=73.56 lat (msec): min=35, max=540, avg=142.86, stdev=73.56 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 97], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 142], | 70.00th=[ 165], 80.00th=[ 197], 90.00th=[ 232], 95.00th=[ 284], | 99.00th=[ 401], 99.50th=[ 485], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 30, max= 191, per=25.57%, avg=89.48, stdev=43.00, samples=139 iops : min= 1, max= 11, avg= 4.86, stdev= 2.80, samples=139 lat (msec) : 10=3.26%, 20=15.36%, 50=20.57%, 100=22.53%, 250=33.98% lat (msec) : 500=4.17%, 750=0.13% cpu : usr=0.05%, sys=1.10%, ctx=1172, 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=146003: Fri Aug 21 23:21:31 2026 read: IOPS=4, BW=79.8KiB/s (81.7kB/s)(5744KiB/71976msec) clat (msec): min=3, max=435, avg=42.62, stdev=55.30 lat (msec): min=3, max=435, avg=42.62, stdev=55.30 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 52], 90.00th=[ 101], 95.00th=[ 138], | 99.00th=[ 309], 99.50th=[ 372], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 30, max= 380, per=29.61%, avg=98.30, stdev=65.83, samples=114 iops : min= 1, max= 23, avg= 5.41, stdev= 4.16, samples=114 write: IOPS=5, BW=90.9KiB/s (93.1kB/s)(6544KiB/71976msec); 0 zone resets clat (msec): min=26, max=577, avg=138.42, stdev=79.66 lat (msec): min=26, max=577, avg=138.42, stdev=79.66 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 78], | 30.00th=[ 87], 40.00th=[ 104], 50.00th=[ 116], 60.00th=[ 133], | 70.00th=[ 155], 80.00th=[ 186], 90.00th=[ 245], 95.00th=[ 296], | 99.00th=[ 430], 99.50th=[ 456], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 30, max= 255, per=26.68%, avg=93.39, stdev=48.26, samples=137 iops : min= 1, max= 15, avg= 5.10, stdev= 3.12, samples=137 lat (msec) : 4=0.13%, 10=2.73%, 20=15.63%, 50=20.31%, 100=23.57% lat (msec) : 250=31.77%, 500=5.73%, 750=0.13% cpu : usr=0.03%, sys=1.08%, ctx=1299, 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=146004: Fri Aug 21 23:21:31 2026 read: IOPS=5, BW=92.7KiB/s (94.0kB/s)(6256KiB/67453msec) clat (msec): min=4, max=442, avg=38.22, stdev=44.03 lat (msec): min=4, max=442, avg=38.22, stdev=44.03 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 47], 90.00th=[ 78], 95.00th=[ 126], | 99.00th=[ 218], 99.50th=[ 292], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 30, max= 352, per=31.05%, avg=103.08, stdev=71.21, samples=120 iops : min= 1, max= 22, avg= 5.70, stdev= 4.53, samples=120 write: IOPS=5, BW=89.4KiB/s (91.6kB/s)(6032KiB/67453msec); 0 zone resets clat (msec): min=33, max=534, avg=138.84, stdev=74.47 lat (msec): min=33, max=534, avg=138.86, stdev=74.47 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 60], 10.00th=[ 71], 20.00th=[ 85], | 30.00th=[ 95], 40.00th=[ 107], 50.00th=[ 120], 60.00th=[ 136], | 70.00th=[ 150], 80.00th=[ 188], 90.00th=[ 228], 95.00th=[ 275], | 99.00th=[ 430], 99.50th=[ 447], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 30, max= 223, per=25.57%, avg=89.51, stdev=44.93, samples=132 iops : min= 1, max= 13, avg= 4.85, stdev= 2.91, samples=132 lat (msec) : 10=2.86%, 20=16.02%, 50=23.05%, 100=21.61%, 250=32.68% lat (msec) : 500=3.65%, 750=0.13% cpu : usr=0.04%, sys=1.23%, ctx=1312, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146006: Fri Aug 21 23:21:31 2026 read: IOPS=5, BW=85.7KiB/s (87.8kB/s)(6032KiB/70370msec) clat (msec): min=5, max=430, avg=41.40, stdev=48.57 lat (msec): min=5, max=430, avg=41.41, stdev=48.57 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 91], 95.00th=[ 134], | 99.00th=[ 247], 99.50th=[ 384], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 30, max= 320, per=29.34%, avg=97.41, stdev=66.87, samples=121 iops : min= 1, max= 20, avg= 5.36, stdev= 4.27, samples=121 write: IOPS=5, BW=88.9KiB/s (91.0kB/s)(6256KiB/70370msec); 0 zone resets clat (msec): min=39, max=403, avg=139.38, stdev=68.17 lat (msec): min=39, max=403, avg=139.38, stdev=68.17 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 85], | 30.00th=[ 96], 40.00th=[ 106], 50.00th=[ 123], 60.00th=[ 138], | 70.00th=[ 161], 80.00th=[ 190], 90.00th=[ 232], 95.00th=[ 279], | 99.00th=[ 368], 99.50th=[ 401], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 30, max= 191, per=25.87%, avg=90.53, stdev=43.31, samples=136 iops : min= 1, max= 11, avg= 4.92, stdev= 2.78, samples=136 lat (msec) : 10=2.47%, 20=16.28%, 50=20.05%, 100=23.44%, 250=33.07% lat (msec) : 500=4.69% cpu : usr=0.04%, sys=1.04%, ctx=1202, 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=333KiB/s (341kB/s), 79.8KiB/s-92.7KiB/s (81.7kB/s-94.0kB/s), io=23.4MiB (24.5MB), run=67453-71976msec WRITE: bw=350KiB/s (359kB/s), 88.9KiB/s-90.9KiB/s (91.0kB/s-93.1kB/s), io=24.6MiB (25.8MB), run=67453-71976msec 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=146042: Fri Aug 21 23:21:44 2026 read: IOPS=2, BW=2962KiB/s (3033kB/s)(7168KiB/2420msec) clat (msec): min=31, max=373, avg=210.55, stdev=112.72 lat (msec): min=31, max=373, avg=210.55, stdev=112.72 clat percentiles (msec): | 1.00th=[ 32], 5.00th=[ 32], 10.00th=[ 32], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 201], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 313], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 1494, max= 4087, per=63.43%, avg=2917.00, stdev=1342.62, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=2, BW=2116KiB/s (2166kB/s)(5120KiB/2420msec); 0 zone resets clat (msec): min=75, max=249, avg=137.44, stdev=75.99 lat (msec): min=75, max=249, avg=137.95, stdev=75.67 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 75], | 30.00th=[ 88], 40.00th=[ 88], 50.00th=[ 92], 60.00th=[ 92], | 70.00th=[ 184], 80.00th=[ 184], 90.00th=[ 251], 95.00th=[ 251], | 99.00th=[ 251], 99.50th=[ 251], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 2043, max= 8192, per=79.49%, avg=5117.50, stdev=4348.00, samples=2 iops : min= 1, max= 8, avg= 4.50, stdev= 4.95, samples=2 lat (msec) : 50=8.33%, 100=25.00%, 250=50.00%, 500=16.67% cpu : usr=0.04%, sys=18.97%, ctx=144, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146043: Fri Aug 21 23:21:44 2026 read: IOPS=0, BW=460KiB/s (471kB/s)(2048KiB/4453msec) clat (usec): min=572, max=257008, avg=128790.56, stdev=181327.87 lat (usec): min=573, max=257010, avg=128792.27, stdev=181328.59 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[ 570], 60.00th=[256902], | 70.00th=[256902], 80.00th=[256902], 90.00th=[256902], 95.00th=[256902], | 99.00th=[256902], 99.50th=[256902], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 1505, max= 2000, per=38.11%, avg=1752.50, stdev=350.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2300KiB/s (2355kB/s)(10.0MiB/4453msec); 0 zone resets clat (msec): min=95, max=1260, avg=397.04, stdev=335.97 lat (msec): min=95, max=1260, avg=397.14, stdev=335.96 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 130], | 30.00th=[ 215], 40.00th=[ 241], 50.00th=[ 251], 60.00th=[ 355], | 70.00th=[ 397], 80.00th=[ 510], 90.00th=[ 518], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 2000, max= 7713, per=55.49%, avg=3572.40, stdev=2481.63, samples=5 iops : min= 1, max= 7, avg= 2.60, stdev= 2.61, samples=5 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=13.03%, ctx=132, 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=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=146044: Fri Aug 21 23:21:44 2026 read: IOPS=1, BW=1920KiB/s (1966kB/s)(6144KiB/3200msec) clat (usec): min=432, max=254562, avg=76305.36, stdev=116855.42 lat (usec): min=433, max=254563, avg=76306.53, stdev=116855.28 clat percentiles (usec): | 1.00th=[ 433], 5.00th=[ 433], 10.00th=[ 433], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 1729], 50.00th=[ 1729], 60.00th=[ 4490], | 70.00th=[196084], 80.00th=[196084], 90.00th=[254804], 95.00th=[254804], | 99.00th=[254804], 99.50th=[254804], 99.90th=[254804], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 2043, max= 4096, per=74.12%, avg=3408.67, stdev=1182.71, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1920KiB/s (1966kB/s)(6144KiB/3200msec); 0 zone resets clat (msec): min=145, max=927, avg=412.77, stdev=271.94 lat (msec): min=145, max=927, avg=412.82, stdev=271.95 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 355], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 1602, max= 4087, per=36.65%, avg=2359.80, stdev=983.77, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 2=8.33%, 10=8.33%, 250=16.67%, 500=41.67%, 1000=8.33% cpu : usr=0.00%, sys=10.60%, ctx=119, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146046: Fri Aug 21 23:21:44 2026 read: IOPS=1, BW=1343KiB/s (1375kB/s)(5120KiB/3812msec) clat (usec): min=301, max=333707, avg=67041.43, stdev=149071.03 lat (usec): min=302, max=333709, avg=67042.20, stdev=149071.46 clat percentiles (usec): | 1.00th=[ 302], 5.00th=[ 302], 10.00th=[ 302], 20.00th=[ 302], | 30.00th=[ 343], 40.00th=[ 343], 50.00th=[ 359], 60.00th=[ 359], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[333448], 95.00th=[333448], | 99.00th=[333448], 99.50th=[333448], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1880KiB/s (1926kB/s)(7168KiB/3812msec); 0 zone resets clat (msec): min=223, max=1009, avg=488.07, stdev=265.08 lat (msec): min=223, max=1009, avg=488.14, stdev=265.09 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 257], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 502], 60.00th=[ 506], | 70.00th=[ 506], 80.00th=[ 567], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 1499, max= 4087, per=42.49%, avg=2735.40, stdev=1215.18, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (usec) : 500=33.33% lat (msec) : 250=8.33%, 500=25.00%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=9.76%, ctx=112, 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=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=4599KiB/s (4710kB/s), 460KiB/s-2962KiB/s (471kB/s-3033kB/s), io=20.0MiB (20.0MB), run=2420-4453msec WRITE: bw=6439KiB/s (6593kB/s), 1880KiB/s-2300KiB/s (1926kB/s-2355kB/s), io=28.0MiB (29.4MB), run=2420-4453msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146045: Fri Aug 21 23:21:44 2026 read: IOPS=1, BW=1995KiB/s (2043kB/s)(7168KiB/3593msec) clat (msec): min=84, max=845, avg=240.73, stdev=276.50 lat (msec): min=84, max=845, avg=240.73, stdev=276.50 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 97], | 30.00th=[ 112], 40.00th=[ 112], 50.00th=[ 116], 60.00th=[ 131], | 70.00th=[ 131], 80.00th=[ 300], 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= 1577, max= 4096, per=62.85%, avg=2937.75, stdev=1330.52, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=1, BW=1425KiB/s (1459kB/s)(5120KiB/3593msec); 0 zone resets clat (msec): min=277, max=459, avg=371.45, stdev=80.28 lat (msec): min=277, max=459, avg=371.55, stdev=80.28 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 418], 80.00th=[ 418], 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= 1899, max= 2048, per=30.54%, avg=1998.25, stdev=67.52, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=50.00%, 1000=8.33% cpu : usr=0.00%, sys=5.12%, ctx=83, 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=146047: Fri Aug 21 23:21:44 2026 read: IOPS=0, BW=477KiB/s (489kB/s)(2048KiB/4292msec) clat (msec): min=92, max=124, avg=108.48, stdev=22.69 lat (msec): min=92, max=124, avg=108.48, stdev=22.69 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 93], | 30.00th=[ 93], 40.00th=[ 93], 50.00th=[ 93], 60.00th=[ 125], | 70.00th=[ 125], 80.00th=[ 125], 90.00th=[ 125], 95.00th=[ 125], | 99.00th=[ 125], 99.50th=[ 125], 99.90th=[ 125], 99.95th=[ 125], | 99.99th=[ 125] bw ( KiB/s): min= 1635, max= 2015, per=39.05%, avg=1825.00, stdev=268.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2386KiB/s (2443kB/s)(10.0MiB/4292msec); 0 zone resets clat (msec): min=173, max=1000, avg=396.17, stdev=239.45 lat (msec): min=173, max=1000, avg=396.34, stdev=239.42 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 241], | 30.00th=[ 247], 40.00th=[ 259], 50.00th=[ 284], 60.00th=[ 338], | 70.00th=[ 439], 80.00th=[ 485], 90.00th=[ 498], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 2015, max= 4096, per=46.04%, avg=3012.67, stdev=1077.31, samples=6 iops : min= 1, max= 4, avg= 2.33, stdev= 1.21, samples=6 lat (msec) : 100=8.33%, 250=33.33%, 500=50.00%, 2000=8.33% cpu : usr=0.02%, sys=3.12%, ctx=64, 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=146048: Fri Aug 21 23:21:44 2026 read: IOPS=1, BW=1402KiB/s (1436kB/s)(6144KiB/4381msec) clat (msec): min=101, max=657, avg=272.15, stdev=208.66 lat (msec): min=101, max=657, avg=272.15, stdev=208.66 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 122], | 30.00th=[ 122], 40.00th=[ 197], 50.00th=[ 197], 60.00th=[ 205], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1899, max= 4079, per=53.74%, avg=2512.00, stdev=1046.64, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1402KiB/s (1436kB/s)(6144KiB/4381msec); 0 zone resets clat (msec): min=186, max=1028, avg=406.53, stdev=320.62 lat (msec): min=187, max=1029, avg=406.73, stdev=320.53 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 266], 50.00th=[ 266], 60.00th=[ 300], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1408, max= 4079, per=35.39%, avg=2316.20, stdev=1021.80, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.05%, sys=3.77%, ctx=75, 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=146049: Fri Aug 21 23:21:44 2026 read: IOPS=1, BW=1367KiB/s (1400kB/s)(5120KiB/3745msec) clat (msec): min=105, max=406, avg=241.10, stdev=148.62 lat (msec): min=105, max=406, avg=241.10, stdev=148.62 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 106], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 171], 60.00th=[ 171], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 1885, max= 6144, per=85.89%, avg=4014.50, stdev=3011.57, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1914KiB/s (1960kB/s)(7168KiB/3745msec); 0 zone resets clat (msec): min=190, max=486, avg=354.08, stdev=115.46 lat (msec): min=191, max=495, avg=356.39, stdev=118.37 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 239], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 334], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 481], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 2035, max= 4096, per=43.55%, avg=2849.80, stdev=1108.20, samples=5 iops : min= 1, max= 4, avg= 2.20, stdev= 1.30, samples=5 lat (msec) : 250=41.67%, 500=58.33% cpu : usr=0.08%, sys=3.39%, ctx=54, 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=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=4675KiB/s (4787kB/s), 477KiB/s-1995KiB/s (489kB/s-2043kB/s), io=20.0MiB (20.0MB), run=3593-4381msec WRITE: bw=6545KiB/s (6702kB/s), 1402KiB/s-2386KiB/s (1436kB/s-2443kB/s), io=28.0MiB (29.4MB), run=3593-4381msec 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=146055: Fri Aug 21 23:21:58 2026 read: IOPS=1, BW=5663KiB/s (5799kB/s)(12.0MiB/2170msec) clat (msec): min=256, max=1507, avg=679.14, stdev=717.55 lat (msec): min=256, max=1507, avg=679.14, stdev=717.55 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 1502], 80.00th=[ 1502], 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= 6792, max= 7684, per=100.00%, avg=7238.00, stdev=630.74, 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=5.67%, 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=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=146056: Fri Aug 21 23:21:58 2026 read: IOPS=0, BW=1500KiB/s (1536kB/s)(4096KiB/2730msec) clat (nsec): min=494173k, max=494173k, avg=494172600.00, stdev= 0.00 lat (nsec): min=494175k, max=494175k, avg=494175330.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 493], 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= 7684, max= 7684, per=100.00%, avg=7684.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3001KiB/s (3073kB/s)(8192KiB/2730msec); 0 zone resets clat (msec): min=1043, max=1105, avg=1074.65, stdev=43.94 lat (msec): min=1044, max=1106, avg=1075.73, stdev=43.68 clat percentiles (msec): | 1.00th=[ 1045], 5.00th=[ 1045], 10.00th=[ 1045], 20.00th=[ 1045], | 30.00th=[ 1045], 40.00th=[ 1045], 50.00th=[ 1045], 60.00th=[ 1099], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 8192, max= 8192, per=69.60%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.11%, sys=4.84%, ctx=72, 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=146057: Fri Aug 21 23:21:58 2026 write: IOPS=1, BW=4460KiB/s (4567kB/s)(12.0MiB/2755msec); 0 zone resets clat (msec): min=363, max=1838, avg=888.29, stdev=824.17 lat (msec): min=365, max=1841, avg=889.94, stdev=825.59 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 1838], 80.00th=[ 1838], 90.00th=[ 1838], 95.00th=[ 1838], | 99.00th=[ 1838], 99.50th=[ 1838], 99.90th=[ 1838], 99.95th=[ 1838], | 99.99th=[ 1838] bw ( KiB/s): min= 8143, max= 8192, per=69.39%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.81%, 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=146058: Fri Aug 21 23:21:58 2026 write: IOPS=1, BW=4414KiB/s (4520kB/s)(12.0MiB/2784msec); 0 zone resets clat (msec): min=269, max=1667, avg=899.37, stdev=709.16 lat (msec): min=270, max=1668, avg=900.25, stdev=708.99 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7406, max= 8159, per=66.12%, avg=7782.50, stdev=532.45, 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=4.20%, ctx=48, 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=6001KiB/s (6146kB/s), 1500KiB/s-5663KiB/s (1536kB/s-5799kB/s), io=16.0MiB (16.8MB), run=2170-2730msec WRITE: bw=11.5MiB/s (12.1MB/s), 3001KiB/s-4460KiB/s (3073kB/s-4567kB/s), io=32.0MiB (33.6MB), run=2730-2784msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146060: Fri Aug 21 23:21:59 2026 read: IOPS=1, BW=6024KiB/s (6168kB/s)(12.0MiB/2040msec) clat (msec): min=511, max=814, avg=679.67, stdev=154.51 lat (msec): min=511, max=814, avg=679.67, stdev=154.51 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 510], | 30.00th=[ 510], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 8047, max= 8175, per=100.00%, avg=8111.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=14.76%, ctx=571, 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=146061: Fri Aug 21 23:21:59 2026 read: IOPS=0, BW=1394KiB/s (1427kB/s)(4096KiB/2939msec) clat (nsec): min=675532k, max=675532k, avg=675532384.00, stdev= 0.00 lat (nsec): min=675535k, max=675535k, avg=675534639.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] 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=2787KiB/s (2854kB/s)(8192KiB/2939msec); 0 zone resets clat (msec): min=590, max=1666, avg=1128.28, stdev=760.57 lat (msec): min=592, max=1666, avg=1129.64, stdev=759.20 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 1670], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8047, max= 8047, per=74.29%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.75%, ctx=141, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146062: Fri Aug 21 23:21:59 2026 write: IOPS=0, BW=4062KiB/s (4160kB/s)(12.0MiB/3025msec); 0 zone resets clat (msec): min=270, max=1985, avg=1004.90, stdev=883.36 lat (msec): min=270, max=1985, avg=1005.56, stdev=883.50 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 1989], 80.00th=[ 1989], 90.00th=[ 1989], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 8159, max= 8159, per=75.32%, 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%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=2.68%, ctx=64, 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=146063: Fri Aug 21 23:21:59 2026 write: IOPS=1, BW=4878KiB/s (4995kB/s)(12.0MiB/2519msec); 0 zone resets clat (msec): min=541, max=1386, avg=838.19, stdev=475.78 lat (msec): min=542, max=1387, avg=838.89, stdev=475.47 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8047, max= 8175, per=74.88%, avg=8111.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.65%, ctx=67, 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=5575KiB/s (5708kB/s), 1394KiB/s-6024KiB/s (1427kB/s-6168kB/s), io=16.0MiB (16.8MB), run=2040-2939msec WRITE: bw=10.6MiB/s (11.1MB/s), 2787KiB/s-4878KiB/s (2854kB/s-4995kB/s), io=32.0MiB (33.6MB), run=2519-3025msec