== sanity test 398b: DIO and buffer IO race ============== 08:35:20 (1787834120) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.48505 s, 9.2 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=144783: Thu Aug 27 08:37:41 2026 read: IOPS=12, BW=48.6KiB/s (49.8kB/s)(5992KiB/123184msec) clat (usec): min=22, max=775123, avg=40220.29, stdev=36475.99 lat (usec): min=22, max=775124, avg=40221.60, stdev=36475.97 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 93], 20.00th=[ 18220], | 30.00th=[ 23200], 40.00th=[ 27919], 50.00th=[ 33162], 60.00th=[ 40633], | 70.00th=[ 49546], 80.00th=[ 61604], 90.00th=[ 77071], 95.00th=[ 94897], | 99.00th=[137364], 99.50th=[160433], 99.90th=[425722], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 7, max= 127, per=25.26%, avg=49.00, stdev=18.96, samples=238 iops : min= 1, max= 31, avg=11.59, stdev= 4.76, samples=238 write: IOPS=12, BW=51.1KiB/s (52.3kB/s)(6296KiB/123184msec); 0 zone resets clat (usec): min=919, max=308669, avg=39886.28, stdev=41497.58 lat (usec): min=921, max=308670, avg=39892.28, stdev=41496.45 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1434], 20.00th=[ 3294], | 30.00th=[ 7308], 40.00th=[ 18744], 50.00th=[ 30016], 60.00th=[ 40633], | 70.00th=[ 52167], 80.00th=[ 70779], 90.00th=[ 93848], 95.00th=[120062], | 99.00th=[173016], 99.50th=[212861], 99.90th=[304088], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 7, max= 151, per=24.98%, avg=50.70, stdev=21.66, samples=242 iops : min= 1, max= 37, avg=12.02, stdev= 5.44, samples=242 lat (usec) : 50=0.88%, 100=4.17%, 250=0.49%, 500=0.13%, 1000=0.26% lat (msec) : 2=6.97%, 4=4.52%, 10=6.05%, 20=8.82%, 50=36.78% lat (msec) : 100=24.67%, 250=6.05%, 500=0.16%, 1000=0.03% cpu : usr=0.08%, sys=5.02%, ctx=6347, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144784: Thu Aug 27 08:37:41 2026 read: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5940KiB/123703msec) clat (usec): min=26, max=806727, avg=40527.41, stdev=38258.47 lat (usec): min=26, max=806729, avg=40542.76, stdev=38249.14 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 79], 20.00th=[ 16909], | 30.00th=[ 22414], 40.00th=[ 27657], 50.00th=[ 33424], 60.00th=[ 39584], | 70.00th=[ 48497], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[147850], 99.50th=[193987], 99.90th=[308282], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 7, max= 120, per=24.70%, avg=47.92, stdev=20.31, samples=242 iops : min= 1, max= 30, avg=11.32, stdev= 5.11, samples=242 write: IOPS=12, BW=51.3KiB/s (52.5kB/s)(6348KiB/123703msec); 0 zone resets clat (usec): min=746, max=401413, avg=39920.07, stdev=39566.09 lat (usec): min=747, max=401414, avg=39923.08, stdev=39566.17 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1532], 20.00th=[ 4146], | 30.00th=[ 8848], 40.00th=[ 19530], 50.00th=[ 30278], 60.00th=[ 41157], | 70.00th=[ 53216], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[117965], | 99.00th=[149947], 99.50th=[173016], 99.90th=[252707], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 7, max= 134, per=25.05%, avg=50.86, stdev=22.10, samples=243 iops : min= 1, max= 33, avg=12.07, stdev= 5.55, samples=243 lat (usec) : 50=0.65%, 100=4.59%, 250=0.33%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.16% lat (msec) : 2=6.54%, 4=3.52%, 10=6.64%, 20=10.35%, 50=36.04% lat (msec) : 100=24.54%, 250=6.15%, 500=0.20%, 1000=0.03% cpu : usr=0.07%, sys=5.11%, ctx=6362, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144785: Thu Aug 27 08:37:41 2026 read: IOPS=12, BW=49.1KiB/s (50.2kB/s)(6028KiB/122892msec) clat (usec): min=30, max=297495, avg=37488.46, stdev=28976.80 lat (usec): min=31, max=297496, avg=37490.57, stdev=28976.95 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 57], 10.00th=[ 73], 20.00th=[ 16712], | 30.00th=[ 22152], 40.00th=[ 26870], 50.00th=[ 31851], 60.00th=[ 38536], | 70.00th=[ 45876], 80.00th=[ 57934], 90.00th=[ 73925], 95.00th=[ 86508], | 99.00th=[125305], 99.50th=[158335], 99.90th=[225444], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 7, max= 118, per=25.32%, avg=49.13, stdev=21.95, samples=239 iops : min= 1, max= 29, avg=11.62, stdev= 5.51, samples=239 write: IOPS=12, BW=50.9KiB/s (52.2kB/s)(6260KiB/122892msec); 0 zone resets clat (usec): min=942, max=899988, avg=42331.67, stdev=46646.44 lat (usec): min=943, max=899990, avg=42336.46, stdev=46653.71 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1237], 10.00th=[ 1713], 20.00th=[ 3949], | 30.00th=[ 8979], 40.00th=[ 21365], 50.00th=[ 33424], 60.00th=[ 43779], | 70.00th=[ 56886], 80.00th=[ 71828], 90.00th=[ 93848], 95.00th=[119014], | 99.00th=[179307], 99.50th=[208667], 99.90th=[333448], 99.95th=[901776], | 99.99th=[901776] bw ( KiB/s): min= 7, max= 119, per=24.87%, avg=50.49, stdev=19.95, samples=241 iops : min= 1, max= 29, avg=11.98, stdev= 5.02, samples=241 lat (usec) : 50=0.91%, 100=4.65%, 250=0.39%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.35%, 4=4.04%, 10=6.05%, 20=9.47%, 50=37.01% lat (msec) : 100=25.26%, 250=5.47%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=4.77%, ctx=6281, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144786: Thu Aug 27 08:37:41 2026 read: IOPS=12, BW=49.6KiB/s (50.8kB/s)(6052KiB/122034msec) clat (usec): min=32, max=241049, avg=39015.60, stdev=30470.58 lat (usec): min=32, max=241050, avg=39019.02, stdev=30470.72 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 57], 10.00th=[ 75], 20.00th=[ 17433], | 30.00th=[ 23200], 40.00th=[ 27657], 50.00th=[ 32637], 60.00th=[ 39060], | 70.00th=[ 46400], 80.00th=[ 58983], 90.00th=[ 78119], 95.00th=[ 98042], | 99.00th=[135267], 99.50th=[177210], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 7, max= 110, per=25.75%, avg=49.95, stdev=20.15, samples=237 iops : min= 1, max= 27, avg=11.84, stdev= 5.07, samples=237 write: IOPS=12, BW=51.1KiB/s (52.3kB/s)(6236KiB/122034msec); 0 zone resets clat (usec): min=762, max=888873, avg=40282.82, stdev=47406.00 lat (usec): min=764, max=888876, avg=40288.76, stdev=47405.23 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1483], 20.00th=[ 3621], | 30.00th=[ 7635], 40.00th=[ 16909], 50.00th=[ 28443], 60.00th=[ 39584], | 70.00th=[ 53216], 80.00th=[ 69731], 90.00th=[ 92799], 95.00th=[120062], | 99.00th=[189793], 99.50th=[210764], 99.90th=[371196], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 7, max= 127, per=25.02%, avg=50.79, stdev=21.66, samples=240 iops : min= 1, max= 31, avg=12.04, stdev= 5.45, samples=240 lat (usec) : 50=0.81%, 100=4.65%, 250=0.26%, 500=0.13%, 750=0.16% lat (usec) : 1000=0.07% lat (msec) : 2=6.77%, 4=4.07%, 10=7.06%, 20=9.34%, 50=37.34% lat (msec) : 100=22.72%, 250=6.48%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=4.90%, ctx=6177, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=194KiB/s (199kB/s), 48.0KiB/s-49.6KiB/s (49.2kB/s-50.8kB/s), io=23.4MiB (24.6MB), run=122034-123703msec WRITE: bw=203KiB/s (208kB/s), 50.9KiB/s-51.3KiB/s (52.2kB/s-52.5kB/s), io=24.6MiB (25.7MB), run=122034-123703msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144778: Thu Aug 27 08:39:50 2026 read: IOPS=5, BW=23.6KiB/s (24.2kB/s)(5992KiB/253366msec) clat (msec): min=5, max=858, avg=34.92, stdev=41.99 lat (msec): min=5, max=858, avg=34.92, stdev=41.99 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 35], 80.00th=[ 49], 90.00th=[ 80], 95.00th=[ 105], | 99.00th=[ 171], 99.50th=[ 241], 99.90th=[ 422], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 96, per=27.78%, avg=26.11, stdev=17.57, samples=444 iops : min= 1, max= 24, avg= 5.90, stdev= 4.43, samples=444 write: IOPS=6, BW=24.8KiB/s (25.4kB/s)(6296KiB/253366msec); 0 zone resets clat (msec): min=31, max=698, avg=127.47, stdev=59.53 lat (msec): min=31, max=698, avg=127.48, stdev=59.53 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 60], 10.00th=[ 69], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 103], 50.00th=[ 114], 60.00th=[ 128], | 70.00th=[ 144], 80.00th=[ 167], 90.00th=[ 211], 95.00th=[ 245], | 99.00th=[ 317], 99.50th=[ 363], 99.90th=[ 430], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 64, per=24.80%, avg=24.55, stdev=11.29, samples=495 iops : min= 1, max= 16, avg= 5.50, stdev= 2.88, samples=495 lat (msec) : 10=4.72%, 20=18.29%, 50=17.71%, 100=24.71%, 250=32.36% lat (msec) : 500=2.15%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.13%, ctx=5061, 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=144779: Thu Aug 27 08:39:50 2026 read: IOPS=5, BW=23.5KiB/s (24.1kB/s)(5940KiB/252888msec) clat (msec): min=5, max=892, avg=33.96, stdev=40.96 lat (msec): min=5, max=892, avg=33.96, stdev=40.96 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=[ 27], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 73], 95.00th=[ 96], | 99.00th=[ 163], 99.50th=[ 199], 99.90th=[ 435], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 103, per=27.99%, avg=26.31, stdev=17.94, samples=437 iops : min= 1, max= 25, avg= 5.94, stdev= 4.53, samples=437 write: IOPS=6, BW=25.1KiB/s (25.7kB/s)(6348KiB/252888msec); 0 zone resets clat (msec): min=33, max=502, avg=127.32, stdev=61.45 lat (msec): min=33, max=502, avg=127.32, stdev=61.45 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 60], 10.00th=[ 67], 20.00th=[ 82], | 30.00th=[ 91], 40.00th=[ 101], 50.00th=[ 111], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 167], 90.00th=[ 211], 95.00th=[ 253], | 99.00th=[ 342], 99.50th=[ 384], 99.90th=[ 477], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 7, max= 64, per=25.07%, avg=24.82, stdev=11.05, samples=494 iops : min= 1, max= 16, avg= 5.57, stdev= 2.81, samples=494 lat (msec) : 10=4.17%, 20=17.22%, 50=19.34%, 100=25.91%, 250=30.53% lat (msec) : 500=2.77%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.11%, ctx=5138, 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=144780: Thu Aug 27 08:39:50 2026 read: IOPS=5, BW=23.9KiB/s (24.4kB/s)(6028KiB/252530msec) clat (msec): min=5, max=426, avg=34.13, stdev=35.93 lat (msec): min=5, max=426, avg=34.13, stdev=35.93 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 48], 90.00th=[ 74], 95.00th=[ 97], | 99.00th=[ 161], 99.50th=[ 178], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 7, max= 119, per=27.35%, avg=25.71, stdev=17.41, samples=453 iops : min= 1, max= 29, avg= 5.79, stdev= 4.39, samples=453 write: IOPS=6, BW=24.8KiB/s (25.4kB/s)(6260KiB/252530msec); 0 zone resets clat (msec): min=31, max=988, avg=128.24, stdev=65.33 lat (msec): min=31, max=988, avg=128.25, stdev=65.33 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 102], 50.00th=[ 114], 60.00th=[ 127], | 70.00th=[ 144], 80.00th=[ 165], 90.00th=[ 207], 95.00th=[ 253], | 99.00th=[ 334], 99.50th=[ 372], 99.90th=[ 701], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 63, per=24.78%, avg=24.53, stdev=11.35, samples=492 iops : min= 1, max= 15, avg= 5.49, stdev= 2.89, samples=492 lat (msec) : 10=4.13%, 20=17.71%, 50=18.78%, 100=25.98%, 250=30.60% lat (msec) : 500=2.73%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.11%, ctx=5155, 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=144781: Thu Aug 27 08:39:50 2026 read: IOPS=6, BW=24.0KiB/s (24.6kB/s)(6052KiB/252140msec) clat (msec): min=5, max=423, avg=33.12, stdev=35.10 lat (msec): min=5, max=423, avg=33.12, stdev=35.10 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=[ 45], 90.00th=[ 73], 95.00th=[ 97], | 99.00th=[ 163], 99.50th=[ 215], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7, max= 111, per=28.11%, avg=26.43, stdev=17.29, samples=443 iops : min= 1, max= 27, avg= 5.98, stdev= 4.36, samples=443 write: IOPS=6, BW=24.7KiB/s (25.3kB/s)(6236KiB/252140msec); 0 zone resets clat (msec): min=33, max=980, avg=129.33, stdev=64.04 lat (msec): min=33, max=980, avg=129.34, stdev=64.04 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 114], 60.00th=[ 128], | 70.00th=[ 146], 80.00th=[ 171], 90.00th=[ 211], 95.00th=[ 243], | 99.00th=[ 330], 99.50th=[ 380], 99.90th=[ 535], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 56, per=24.57%, avg=24.32, stdev=10.91, samples=494 iops : min= 1, max= 14, avg= 5.44, stdev= 2.78, samples=494 lat (msec) : 10=4.30%, 20=18.29%, 50=19.11%, 100=24.35%, 250=31.48% lat (msec) : 500=2.38%, 750=0.07%, 1000=0.03% cpu : usr=0.05%, sys=1.12%, ctx=5087, 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=94.8KiB/s (97.0kB/s), 23.5KiB/s-24.0KiB/s (24.1kB/s-24.6kB/s), io=23.4MiB (24.6MB), run=252140-253366msec WRITE: bw=99.2KiB/s (102kB/s), 24.7KiB/s-25.1KiB/s (25.3kB/s-25.7kB/s), io=24.6MiB (25.7MB), run=252140-253366msec 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=144840: Thu Aug 27 08:40:25 2026 read: IOPS=15, BW=245KiB/s (251kB/s)(5920KiB/24171msec) clat (usec): min=20, max=158194, avg=33368.17, stdev=25978.53 lat (usec): min=20, max=158196, avg=33379.25, stdev=25989.34 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 52], 10.00th=[ 60], 20.00th=[ 119], | 30.00th=[ 20579], 40.00th=[ 26870], 50.00th=[ 31327], 60.00th=[ 37487], | 70.00th=[ 44827], 80.00th=[ 52691], 90.00th=[ 64226], 95.00th=[ 77071], | 99.00th=[108528], 99.50th=[156238], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 94, max= 474, per=24.75%, avg=245.04, stdev=86.62, samples=47 iops : min= 5, max= 29, avg=14.55, stdev= 5.52, samples=47 write: IOPS=16, BW=263KiB/s (270kB/s)(6368KiB/24171msec); 0 zone resets clat (usec): min=897, max=162214, avg=29032.97, stdev=29578.25 lat (usec): min=897, max=162217, avg=29042.25, stdev=29595.38 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1663], 10.00th=[ 1811], 20.00th=[ 3720], | 30.00th=[ 5800], 40.00th=[ 10290], 50.00th=[ 20579], 60.00th=[ 29754], | 70.00th=[ 38536], 80.00th=[ 52167], 90.00th=[ 69731], 95.00th=[ 87557], | 99.00th=[124257], 99.50th=[160433], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 84, max= 474, per=25.40%, avg=264.64, stdev=87.27, samples=47 iops : min= 5, max= 29, avg=15.81, stdev= 5.44, samples=47 lat (usec) : 50=2.34%, 100=7.16%, 250=0.39%, 1000=0.26% lat (msec) : 2=5.86%, 4=5.21%, 10=9.38%, 20=8.72%, 50=37.89% lat (msec) : 100=20.83%, 250=1.95% cpu : usr=0.08%, sys=6.18%, ctx=1420, 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=144841: Thu Aug 27 08:40:25 2026 read: IOPS=15, BW=240KiB/s (246kB/s)(5744KiB/23923msec) clat (usec): min=37, max=202345, avg=31933.73, stdev=25745.10 lat (usec): min=38, max=202346, avg=31934.89, stdev=25745.15 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 106], | 30.00th=[ 20055], 40.00th=[ 25822], 50.00th=[ 30016], 60.00th=[ 35390], | 70.00th=[ 41681], 80.00th=[ 49021], 90.00th=[ 61604], 95.00th=[ 70779], | 99.00th=[120062], 99.50th=[154141], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 27, max= 414, per=24.84%, avg=245.96, stdev=86.95, samples=46 iops : min= 1, max= 25, avg=14.61, stdev= 5.43, samples=46 write: IOPS=17, BW=274KiB/s (280kB/s)(6544KiB/23923msec); 0 zone resets clat (usec): min=955, max=311406, avg=29635.98, stdev=37166.08 lat (usec): min=956, max=311409, avg=29638.01, stdev=37166.12 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1729], 10.00th=[ 2089], 20.00th=[ 3032], | 30.00th=[ 5473], 40.00th=[ 8356], 50.00th=[ 16450], 60.00th=[ 24773], | 70.00th=[ 35914], 80.00th=[ 54264], 90.00th=[ 71828], 95.00th=[ 87557], | 99.00th=[173016], 99.50th=[221250], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 27, max= 477, per=26.32%, avg=274.23, stdev=104.02, samples=47 iops : min= 1, max= 29, avg=16.40, stdev= 6.61, samples=47 lat (usec) : 50=1.69%, 100=7.55%, 250=0.78%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=4.43%, 4=8.98%, 10=9.11%, 20=9.51%, 50=37.24% lat (msec) : 100=17.45%, 250=2.60%, 500=0.26% cpu : usr=0.09%, sys=5.98%, ctx=1410, 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=144842: Thu Aug 27 08:40:25 2026 read: IOPS=16, BW=262KiB/s (269kB/s)(6256KiB/23848msec) clat (usec): min=21, max=230138, avg=32433.54, stdev=28901.74 lat (usec): min=21, max=230140, avg=32434.65, stdev=28901.76 clat percentiles (usec): | 1.00th=[ 27], 5.00th=[ 53], 10.00th=[ 58], 20.00th=[ 74], | 30.00th=[ 17171], 40.00th=[ 24773], 50.00th=[ 30016], 60.00th=[ 35390], | 70.00th=[ 43254], 80.00th=[ 53216], 90.00th=[ 66323], 95.00th=[ 73925], | 99.00th=[123208], 99.50th=[170918], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 28, max= 574, per=26.62%, avg=263.53, stdev=122.32, samples=47 iops : min= 1, max= 35, avg=15.72, stdev= 7.75, samples=47 write: IOPS=15, BW=253KiB/s (259kB/s)(6032KiB/23848msec); 0 zone resets clat (usec): min=1167, max=278451, avg=28779.24, stdev=33098.39 lat (usec): min=1169, max=278453, avg=28781.47, stdev=33098.32 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1762], 10.00th=[ 2245], 20.00th=[ 4817], | 30.00th=[ 7439], 40.00th=[ 10552], 50.00th=[ 18744], 60.00th=[ 26870], | 70.00th=[ 33424], 80.00th=[ 49546], 90.00th=[ 66847], 95.00th=[ 85459], | 99.00th=[179307], 99.50th=[212861], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 63, max= 542, per=24.10%, avg=251.17, stdev=85.91, samples=47 iops : min= 3, max= 33, avg=14.96, stdev= 5.36, samples=47 lat (usec) : 50=2.08%, 100=9.90%, 250=0.65%, 750=0.13% lat (msec) : 2=4.17%, 4=4.04%, 10=11.20%, 20=9.77%, 50=36.59% lat (msec) : 100=19.01%, 250=2.34%, 500=0.13% cpu : usr=0.06%, sys=5.72%, ctx=1375, 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=144843: Thu Aug 27 08:40:25 2026 read: IOPS=16, BW=269KiB/s (276kB/s)(6032KiB/22410msec) clat (usec): min=31, max=110308, avg=31259.27, stdev=22764.13 lat (usec): min=31, max=110309, avg=31260.41, stdev=22764.12 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 101], | 30.00th=[ 19530], 40.00th=[ 25560], 50.00th=[ 30802], 60.00th=[ 36439], | 70.00th=[ 42730], 80.00th=[ 50594], 90.00th=[ 61604], 95.00th=[ 66323], | 99.00th=[ 89654], 99.50th=[ 96994], 99.90th=[110625], 99.95th=[110625], | 99.99th=[110625] bw ( KiB/s): min= 125, max= 542, per=26.96%, avg=266.89, stdev=89.76, samples=44 iops : min= 7, max= 33, avg=15.93, stdev= 5.64, samples=44 write: IOPS=17, BW=279KiB/s (286kB/s)(6256KiB/22410msec); 0 zone resets clat (usec): min=1030, max=192986, avg=26811.28, stdev=27740.66 lat (usec): min=1031, max=192988, avg=26817.90, stdev=27745.28 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1631], 10.00th=[ 1844], 20.00th=[ 3163], | 30.00th=[ 5866], 40.00th=[ 9765], 50.00th=[ 18744], 60.00th=[ 27657], | 70.00th=[ 37487], 80.00th=[ 48497], 90.00th=[ 61604], 95.00th=[ 72877], | 99.00th=[123208], 99.50th=[166724], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 63, max= 479, per=26.72%, avg=278.43, stdev=93.43, samples=44 iops : min= 3, max= 29, avg=16.66, stdev= 5.91, samples=44 lat (usec) : 50=1.69%, 100=8.07%, 250=0.65%, 500=0.26%, 1000=0.13% lat (msec) : 2=6.64%, 4=5.47%, 10=8.46%, 20=9.77%, 50=39.45% lat (msec) : 100=18.36%, 250=1.04% cpu : usr=0.10%, sys=6.21%, ctx=1378, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=991KiB/s (1015kB/s), 240KiB/s-269KiB/s (246kB/s-276kB/s), io=23.4MiB (24.5MB), run=22410-24171msec WRITE: bw=1043KiB/s (1068kB/s), 253KiB/s-279KiB/s (259kB/s-286kB/s), io=24.6MiB (25.8MB), run=22410-24171msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144836: Thu Aug 27 08:41:01 2026 read: IOPS=6, BW=99.6KiB/s (102kB/s)(5920KiB/59438msec) clat (msec): min=6, max=243, avg=32.63, stdev=28.89 lat (msec): min=6, max=243, avg=32.64, stdev=28.89 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 67], 95.00th=[ 94], | 99.00th=[ 133], 99.50th=[ 182], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 30, max= 379, per=26.44%, avg=105.50, stdev=65.38, samples=109 iops : min= 1, max= 23, avg= 5.79, stdev= 4.10, samples=109 write: IOPS=6, BW=107KiB/s (110kB/s)(6368KiB/59438msec); 0 zone resets clat (msec): min=40, max=381, avg=118.21, stdev=50.58 lat (msec): min=40, max=381, avg=118.21, stdev=50.58 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 60], 10.00th=[ 67], 20.00th=[ 78], | 30.00th=[ 89], 40.00th=[ 97], 50.00th=[ 106], 60.00th=[ 117], | 70.00th=[ 133], 80.00th=[ 155], 90.00th=[ 188], 95.00th=[ 222], | 99.00th=[ 266], 99.50th=[ 342], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 31, max= 222, per=25.73%, avg=108.05, stdev=41.77, samples=115 iops : min= 1, max= 13, avg= 5.96, stdev= 2.66, samples=115 lat (msec) : 10=2.34%, 20=18.88%, 50=19.14%, 100=28.78%, 250=29.95% lat (msec) : 500=0.91% cpu : usr=0.03%, sys=1.19%, ctx=1244, 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=144837: Thu Aug 27 08:41:01 2026 read: IOPS=5, BW=95.9KiB/s (98.2kB/s)(5744KiB/59905msec) clat (msec): min=5, max=202, avg=32.86, stdev=30.36 lat (msec): min=5, max=202, avg=32.86, stdev=30.36 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 44], 90.00th=[ 68], 95.00th=[ 111], | 99.00th=[ 161], 99.50th=[ 174], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 29, max= 415, per=27.04%, avg=107.89, stdev=72.03, samples=104 iops : min= 1, max= 25, avg= 5.96, stdev= 4.56, samples=104 write: IOPS=6, BW=109KiB/s (112kB/s)(6544KiB/59905msec); 0 zone resets clat (msec): min=40, max=330, avg=116.90, stdev=49.89 lat (msec): min=40, max=330, avg=116.90, stdev=49.89 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 79], | 30.00th=[ 87], 40.00th=[ 96], 50.00th=[ 105], 60.00th=[ 115], | 70.00th=[ 133], 80.00th=[ 150], 90.00th=[ 182], 95.00th=[ 213], | 99.00th=[ 284], 99.50th=[ 305], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 29, max= 222, per=25.96%, avg=109.05, stdev=47.95, samples=118 iops : min= 1, max= 13, avg= 6.02, stdev= 3.02, samples=118 lat (msec) : 10=2.73%, 20=17.45%, 50=20.44%, 100=27.73%, 250=30.47% lat (msec) : 500=1.17% cpu : usr=0.05%, sys=1.18%, ctx=1198, 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=144838: Thu Aug 27 08:41:01 2026 read: IOPS=6, BW=111KiB/s (113kB/s)(6256KiB/56602msec) clat (msec): min=6, max=203, avg=32.71, stdev=29.47 lat (msec): min=6, max=203, avg=32.71, stdev=29.47 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 42], 90.00th=[ 68], 95.00th=[ 99], | 99.00th=[ 165], 99.50th=[ 178], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 30, max= 318, per=29.49%, avg=117.66, stdev=76.60, samples=105 iops : min= 1, max= 19, avg= 6.57, stdev= 4.87, samples=105 write: IOPS=6, BW=107KiB/s (109kB/s)(6032KiB/56602msec); 0 zone resets clat (msec): min=32, max=397, avg=115.98, stdev=49.78 lat (msec): min=32, max=397, avg=115.98, stdev=49.78 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 65], 20.00th=[ 77], | 30.00th=[ 86], 40.00th=[ 96], 50.00th=[ 106], 60.00th=[ 118], | 70.00th=[ 132], 80.00th=[ 148], 90.00th=[ 178], 95.00th=[ 224], | 99.00th=[ 264], 99.50th=[ 309], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 31, max= 223, per=25.23%, avg=105.97, stdev=44.76, samples=112 iops : min= 1, max= 13, avg= 5.83, stdev= 2.82, samples=112 lat (msec) : 10=2.34%, 20=18.49%, 50=23.05%, 100=26.43%, 250=28.91% lat (msec) : 500=0.78% cpu : usr=0.04%, sys=1.37%, ctx=1292, 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=144839: Thu Aug 27 08:41:01 2026 read: IOPS=6, BW=103KiB/s (106kB/s)(6032KiB/58341msec) clat (msec): min=5, max=185, avg=30.87, stdev=28.81 lat (msec): min=5, max=185, avg=30.89, stdev=28.82 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 62], 95.00th=[ 89], | 99.00th=[ 157], 99.50th=[ 161], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 30, max= 316, per=27.37%, avg=109.20, stdev=67.31, samples=108 iops : min= 1, max= 19, avg= 6.04, stdev= 4.23, samples=108 write: IOPS=6, BW=107KiB/s (110kB/s)(6256KiB/58341msec); 0 zone resets clat (msec): min=35, max=364, avg=118.65, stdev=51.59 lat (msec): min=35, max=364, avg=118.65, stdev=51.59 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 65], 20.00th=[ 78], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 108], 60.00th=[ 121], | 70.00th=[ 136], 80.00th=[ 153], 90.00th=[ 192], 95.00th=[ 222], | 99.00th=[ 279], 99.50th=[ 317], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 31, max= 247, per=25.43%, avg=106.83, stdev=45.80, samples=115 iops : min= 1, max= 15, avg= 5.89, stdev= 2.92, samples=115 lat (msec) : 10=4.69%, 20=18.10%, 50=20.05%, 100=25.91%, 250=29.95% lat (msec) : 500=1.30% cpu : usr=0.05%, sys=1.23%, ctx=1234, 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=400KiB/s (409kB/s), 95.9KiB/s-111KiB/s (98.2kB/s-113kB/s), io=23.4MiB (24.5MB), run=56602-59905msec WRITE: bw=421KiB/s (431kB/s), 107KiB/s-109KiB/s (109kB/s-112kB/s), io=24.6MiB (25.8MB), run=56602-59905msec 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=144860: Thu Aug 27 08:41:18 2026 read: IOPS=1, BW=1781KiB/s (1824kB/s)(7168KiB/4024msec) clat (msec): min=133, max=578, avg=215.89, stdev=161.95 lat (msec): min=133, max=578, avg=215.89, stdev=161.95 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 140], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 153], 60.00th=[ 155], | 70.00th=[ 155], 80.00th=[ 211], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1889, max= 4612, per=75.62%, avg=2640.00, stdev=1316.42, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 write: IOPS=1, BW=1272KiB/s (1303kB/s)(5120KiB/4024msec); 0 zone resets clat (msec): min=274, max=708, avg=461.78, stdev=172.73 lat (msec): min=274, max=708, avg=461.90, stdev=172.75 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 1889, max= 2023, per=40.59%, avg=1983.50, stdev=63.34, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=50.00%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=2.96%, ctx=108, 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=144861: Thu Aug 27 08:41:18 2026 read: IOPS=0, BW=349KiB/s (358kB/s)(2048KiB/5866msec) clat (msec): min=183, max=1167, avg=675.64, stdev=696.22 lat (msec): min=183, max=1167, avg=675.64, stdev=696.22 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 1167], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 1544, max= 2015, per=50.97%, avg=1779.50, stdev=333.05, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1746KiB/s (1788kB/s)(10.0MiB/5866msec); 0 zone resets clat (msec): min=191, max=1024, avg=424.86, stdev=241.29 lat (msec): min=192, max=1024, avg=425.08, stdev=241.36 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 213], | 30.00th=[ 275], 40.00th=[ 334], 50.00th=[ 368], 60.00th=[ 376], | 70.00th=[ 435], 80.00th=[ 443], 90.00th=[ 592], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 1939, max= 4087, per=61.07%, avg=2984.33, stdev=1074.35, samples=6 iops : min= 1, max= 3, avg= 2.17, stdev= 0.98, samples=6 lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 2000=16.67% cpu : usr=0.03%, sys=2.44%, ctx=67, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144862: Thu Aug 27 08:41:18 2026 read: IOPS=1, BW=1465KiB/s (1500kB/s)(6144KiB/4193msec) clat (msec): min=163, max=592, avg=306.73, stdev=185.76 lat (msec): min=163, max=592, avg=306.73, stdev=185.76 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 207], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1889, max= 4015, per=71.35%, avg=2490.75, stdev=1018.43, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1465KiB/s (1500kB/s)(6144KiB/4193msec); 0 zone resets clat (msec): min=207, max=863, avg=378.67, stdev=242.68 lat (msec): min=207, max=863, avg=378.80, stdev=242.66 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 317], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1501, max= 3778, per=47.58%, avg=2325.25, stdev=997.90, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.05%, sys=2.98%, ctx=51, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144863: Thu Aug 27 08:41:18 2026 read: IOPS=1, BW=1084KiB/s (1110kB/s)(5120KiB/4723msec) clat (msec): min=156, max=558, avg=371.80, stdev=184.00 lat (msec): min=156, max=558, avg=371.80, stdev=184.00 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 2007, max= 2023, per=57.69%, avg=2014.00, stdev= 6.83, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1518KiB/s (1554kB/s)(7168KiB/4723msec); 0 zone resets clat (msec): min=243, max=531, avg=397.03, stdev=104.08 lat (msec): min=243, max=531, avg=397.14, stdev=104.10 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 317], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 388], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 506], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 1692, max= 3778, per=48.38%, avg=2364.25, stdev=954.19, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=25.00%, 500=41.67%, 750=33.33% cpu : usr=0.00%, sys=2.52%, ctx=57, 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=3491KiB/s (3575kB/s), 349KiB/s-1781KiB/s (358kB/s-1824kB/s), io=20.0MiB (20.0MB), run=4024-5866msec WRITE: bw=4888KiB/s (5005kB/s), 1272KiB/s-1746KiB/s (1303kB/s-1788kB/s), io=28.0MiB (29.4MB), run=4024-5866msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144865: Thu Aug 27 08:41:18 2026 read: IOPS=2, BW=2451KiB/s (2510kB/s)(7168KiB/2924msec) clat (usec): min=504, max=426516, avg=230026.82, stdev=172185.01 lat (usec): min=505, max=426517, avg=230028.06, stdev=172185.12 clat percentiles (usec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 529], | 30.00th=[231736], 40.00th=[231736], 50.00th=[256902], 60.00th=[291505], | 70.00th=[291505], 80.00th=[400557], 90.00th=[425722], 95.00th=[425722], | 99.00th=[425722], 99.50th=[425722], 99.90th=[425722], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 1729, max= 4071, per=62.98%, avg=2967.50, stdev=1274.66, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1751KiB/s (1793kB/s)(5120KiB/2924msec); 0 zone resets clat (msec): min=78, max=463, avg=261.95, stdev=169.34 lat (msec): min=78, max=463, avg=262.49, stdev=168.82 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 79], | 30.00th=[ 108], 40.00th=[ 108], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 1910, max= 6107, per=60.76%, avg=4008.50, stdev=2967.73, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (usec) : 750=16.67% lat (msec) : 100=8.33%, 250=16.67%, 500=58.33% cpu : usr=0.00%, sys=12.76%, ctx=137, 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=144866: Thu Aug 27 08:41:18 2026 read: IOPS=0, BW=471KiB/s (483kB/s)(2048KiB/4346msec) clat (usec): min=521, max=391523, avg=196022.71, stdev=276479.89 lat (usec): min=523, max=391525, avg=196024.07, stdev=276480.06 clat percentiles (usec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[392168], | 70.00th=[392168], 80.00th=[392168], 90.00th=[392168], 95.00th=[392168], | 99.00th=[392168], 99.50th=[392168], 99.90th=[392168], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 1635, max= 2035, per=38.94%, avg=1835.00, stdev=282.84, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2356KiB/s (2413kB/s)(10.0MiB/4346msec); 0 zone resets clat (msec): min=138, max=1035, avg=394.93, stdev=248.98 lat (msec): min=138, max=1035, avg=395.26, stdev=248.89 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 174], | 30.00th=[ 305], 40.00th=[ 326], 50.00th=[ 330], 60.00th=[ 342], | 70.00th=[ 384], 80.00th=[ 422], 90.00th=[ 498], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 1910, max= 4071, per=45.34%, avg=2991.17, stdev=1135.61, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=66.67%, 2000=8.33% cpu : usr=0.00%, sys=11.37%, ctx=120, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144867: Thu Aug 27 08:41:18 2026 read: IOPS=1, BW=1651KiB/s (1691kB/s)(6144KiB/3721msec) clat (usec): min=528, max=496466, avg=167032.26, stdev=202515.82 lat (usec): min=529, max=496467, avg=167033.66, stdev=202515.85 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 529], 10.00th=[ 529], 20.00th=[ 537], | 30.00th=[ 537], 40.00th=[ 4146], 50.00th=[ 4146], 60.00th=[231736], | 70.00th=[270533], 80.00th=[270533], 90.00th=[497026], 95.00th=[497026], | 99.00th=[497026], 99.50th=[497026], 99.90th=[497026], 99.95th=[497026], | 99.99th=[497026] bw ( KiB/s): min= 1950, max= 3820, per=52.06%, avg=2453.00, stdev=912.02, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1651KiB/s (1691kB/s)(6144KiB/3721msec); 0 zone resets clat (msec): min=143, max=700, avg=452.54, stdev=248.19 lat (msec): min=143, max=700, avg=452.60, stdev=248.18 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 567], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1771, max= 4063, per=35.75%, avg=2358.40, stdev=957.94, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=16.67% lat (msec) : 10=8.33%, 250=25.00%, 500=16.67%, 750=33.33% cpu : usr=0.00%, sys=9.14%, ctx=120, 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=144868: Thu Aug 27 08:41:18 2026 read: IOPS=1, BW=1631KiB/s (1670kB/s)(5120KiB/3139msec) clat (usec): min=468, max=322183, avg=115071.55, stdev=158789.56 lat (usec): min=469, max=322184, avg=115072.60, stdev=158789.25 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 469], | 30.00th=[ 529], 40.00th=[ 529], 50.00th=[ 668], 60.00th=[ 668], | 70.00th=[250610], 80.00th=[250610], 90.00th=[320865], 95.00th=[320865], | 99.00th=[320865], 99.50th=[320865], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2284KiB/s (2338kB/s)(7168KiB/3139msec); 0 zone resets clat (msec): min=143, max=511, avg=365.79, stdev=141.72 lat (msec): min=143, max=511, avg=366.04, stdev=141.65 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 213], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 426], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 485], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 1675, max= 4063, per=36.59%, avg=2413.75, stdev=1108.30, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=16.67%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=13.13%, ctx=127, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4712KiB/s (4825kB/s), 471KiB/s-2451KiB/s (483kB/s-2510kB/s), io=20.0MiB (20.0MB), run=2924-4346msec WRITE: bw=6597KiB/s (6756kB/s), 1651KiB/s-2356KiB/s (1691kB/s-2413kB/s), io=28.0MiB (29.4MB), run=2924-4346msec 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=144877: Thu Aug 27 08:41:35 2026 read: IOPS=1, BW=4571KiB/s (4681kB/s)(12.0MiB/2688msec) clat (msec): min=799, max=955, avg=862.03, stdev=82.10 lat (msec): min=799, max=955, avg=862.03, stdev=82.10 clat percentiles (msec): | 1.00th=[ 802], 5.00th=[ 802], 10.00th=[ 802], 20.00th=[ 802], | 30.00th=[ 802], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7907, max= 8094, per=100.00%, avg=8000.50, stdev=132.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.04%, sys=10.83%, ctx=215, 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=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=144880: Thu Aug 27 08:41:35 2026 read: IOPS=0, BW=1208KiB/s (1237kB/s)(4096KiB/3392msec) clat (nsec): min=735157k, max=735157k, avg=735157475.00, stdev= 0.00 lat (nsec): min=735160k, max=735160k, avg=735160325.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2415KiB/s (2473kB/s)(8192KiB/3392msec); 0 zone resets clat (msec): min=786, max=1766, avg=1276.12, stdev=692.88 lat (msec): min=788, max=1768, avg=1278.56, stdev=692.64 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 1770], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8015, max= 8015, per=88.41%, avg=8015.00, 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=0.15%, sys=3.51%, ctx=62, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144881: Thu Aug 27 08:41:35 2026 write: IOPS=0, BW=3400KiB/s (3482kB/s)(12.0MiB/3614msec); 0 zone resets clat (msec): min=318, max=1644, avg=1116.54, stdev=703.31 lat (msec): min=318, max=1645, avg=1118.37, stdev=704.33 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 1385], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 8062, max= 8062, per=88.93%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.33%, sys=4.93%, ctx=63, 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=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=144883: Thu Aug 27 08:41:35 2026 write: IOPS=1, BW=4291KiB/s (4393kB/s)(12.0MiB/2864msec); 0 zone resets clat (msec): min=641, max=1203, avg=928.79, stdev=281.52 lat (msec): min=641, max=1206, avg=930.49, stdev=282.75 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 8031, max= 8094, per=88.93%, avg=8062.50, stdev=44.55, 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=0.42%, sys=4.40%, ctx=50, 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=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=4830KiB/s (4946kB/s), 1208KiB/s-4571KiB/s (1237kB/s-4681kB/s), io=16.0MiB (16.8MB), run=2688-3392msec WRITE: bw=9067KiB/s (9285kB/s), 2415KiB/s-4291KiB/s (2473kB/s-4393kB/s), io=32.0MiB (33.6MB), run=2864-3614msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144876: Thu Aug 27 08:41:36 2026 read: IOPS=0, BW=3272KiB/s (3350kB/s)(12.0MiB/3756msec) clat (msec): min=112, max=1829, avg=1205.95, stdev=950.06 lat (msec): min=112, max=1829, avg=1205.96, stdev=950.07 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 1670], 50.00th=[ 1670], 60.00th=[ 1670], | 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= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.05%, sys=1.86%, ctx=26, 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=144878: Thu Aug 27 08:41:36 2026 read: IOPS=0, BW=1414KiB/s (1448kB/s)(4096KiB/2897msec) clat (nsec): min=340387k, max=340387k, avg=340386721.00, stdev= 0.00 lat (nsec): min=340391k, max=340391k, avg=340390818.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 5826, max= 5826, per=100.00%, avg=5826.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2828KiB/s (2896kB/s)(8192KiB/2897msec); 0 zone resets clat (msec): min=1018, max=1406, avg=1212.46, stdev=274.75 lat (msec): min=1019, max=1419, avg=1219.49, stdev=282.55 clat percentiles (msec): | 1.00th=[ 1020], 5.00th=[ 1020], 10.00th=[ 1020], 20.00th=[ 1020], | 30.00th=[ 1020], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1401], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8143, max= 8143, per=94.21%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.97%, ctx=67, 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=144879: Thu Aug 27 08:41:36 2026 write: IOPS=0, BW=3241KiB/s (3319kB/s)(12.0MiB/3791msec); 0 zone resets clat (msec): min=235, max=1778, avg=1188.84, stdev=832.99 lat (msec): min=236, max=1778, avg=1189.27, stdev=832.88 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 1552], 50.00th=[ 1552], 60.00th=[ 1552], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8047, max= 8159, per=93.75%, avg=8103.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.21%, sys=2.53%, ctx=36, 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=144882: Thu Aug 27 08:41:36 2026 write: IOPS=1, BW=4433KiB/s (4539kB/s)(12.0MiB/2772msec); 0 zone resets clat (msec): min=437, max=1462, avg=826.01, stdev=555.64 lat (msec): min=438, max=1462, avg=826.75, stdev=555.42 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8031, max= 8143, per=93.57%, avg=8087.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.18%, sys=2.56%, ctx=70, 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=4362KiB/s (4467kB/s), 1414KiB/s-3272KiB/s (1448kB/s-3350kB/s), io=16.0MiB (16.8MB), run=2897-3756msec WRITE: bw=8644KiB/s (8851kB/s), 2828KiB/s-4433KiB/s (2896kB/s-4539kB/s), io=32.0MiB (33.6MB), run=2772-3791msec