== sanity test 398b: DIO and buffer IO race ============== 19:59:32 (1787702372) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.66577 s, 7.6 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179709: Tue Aug 25 20:01:56 2026 read: IOPS=12, BW=48.5KiB/s (49.7kB/s)(5992KiB/123488msec) clat (usec): min=43, max=1111.9k, avg=46040.27, stdev=41938.97 lat (usec): min=44, max=1111.9k, avg=46042.87, stdev=41940.42 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 11076], 10.00th=[ 16188], | 20.00th=[ 22676], 30.00th=[ 27919], 40.00th=[ 33424], | 50.00th=[ 39060], 60.00th=[ 46400], 70.00th=[ 52691], | 80.00th=[ 63701], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[ 170918], 99.50th=[ 210764], 99.90th=[ 308282], | 99.95th=[1115685], 99.99th=[1115685] bw ( KiB/s): min= 7, max= 111, per=24.97%, avg=48.45, stdev=19.14, samples=242 iops : min= 1, max= 27, avg=11.48, stdev= 4.81, samples=242 write: IOPS=12, BW=50.0KiB/s (52.2kB/s)(6296KiB/123488msec); 0 zone resets clat (usec): min=839, max=252502, avg=34296.80, stdev=36290.46 lat (usec): min=839, max=252505, avg=34307.63, stdev=36327.06 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1205], 10.00th=[ 1418], 20.00th=[ 3425], | 30.00th=[ 6783], 40.00th=[ 14746], 50.00th=[ 24773], 60.00th=[ 32637], | 70.00th=[ 43254], 80.00th=[ 60031], 90.00th=[ 85459], 95.00th=[107480], | 99.00th=[149947], 99.50th=[183501], 99.90th=[240124], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 7, max= 166, per=25.26%, avg=51.29, stdev=23.30, samples=240 iops : min= 1, max= 41, avg=12.20, stdev= 5.86, samples=240 lat (usec) : 50=0.23%, 100=1.76%, 250=0.07%, 500=0.03%, 1000=0.33% lat (msec) : 2=6.93%, 4=4.10%, 10=7.06%, 20=9.90%, 50=39.65% lat (msec) : 100=24.45%, 250=5.34%, 500=0.13%, 2000=0.03% cpu : usr=0.10%, sys=5.10%, ctx=6349, 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=179710: Tue Aug 25 20:01:56 2026 read: IOPS=12, BW=48.3KiB/s (49.5kB/s)(5940KiB/122971msec) clat (usec): min=35, max=328712, avg=44835.26, stdev=31809.82 lat (usec): min=35, max=328713, avg=44839.08, stdev=31809.75 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 8979], 10.00th=[ 15664], 20.00th=[ 21103], | 30.00th=[ 26084], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 53740], 80.00th=[ 64750], 90.00th=[ 81265], 95.00th=[102237], | 99.00th=[162530], 99.50th=[196084], 99.90th=[248513], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 7, max= 111, per=24.82%, avg=48.15, stdev=19.08, samples=241 iops : min= 1, max= 27, avg=11.41, stdev= 4.79, samples=241 write: IOPS=12, BW=51.6KiB/s (52.9kB/s)(6348KiB/122971msec); 0 zone resets clat (usec): min=689, max=1068.4k, avg=35186.21, stdev=44157.32 lat (usec): min=690, max=1068.4k, avg=35190.00, stdev=44159.56 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1385], | 20.00th=[ 3458], 30.00th=[ 6521], 40.00th=[ 15795], | 50.00th=[ 25822], 60.00th=[ 33817], 70.00th=[ 44827], | 80.00th=[ 60556], 90.00th=[ 85459], 95.00th=[ 106431], | 99.00th=[ 145753], 99.50th=[ 179307], 99.90th=[ 270533], | 99.95th=[1069548], 99.99th=[1069548] bw ( KiB/s): min= 7, max= 110, per=25.26%, avg=51.27, stdev=21.32, samples=242 iops : min= 1, max= 27, avg=12.19, stdev= 5.38, samples=242 lat (usec) : 50=0.33%, 100=1.69%, 250=0.20%, 750=0.07%, 1000=0.29% lat (msec) : 2=7.26%, 4=3.78%, 10=7.19%, 20=10.16%, 50=39.00% lat (msec) : 100=24.32%, 250=5.63%, 500=0.07%, 2000=0.03% cpu : usr=0.09%, sys=5.00%, ctx=6270, 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=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=179711: Tue Aug 25 20:01:56 2026 read: IOPS=12, BW=48.8KiB/s (49.0kB/s)(6028KiB/123483msec) clat (usec): min=36, max=257900, avg=43253.43, stdev=28532.37 lat (usec): min=36, max=257901, avg=43255.07, stdev=28532.42 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 375], 10.00th=[ 16188], 20.00th=[ 22414], | 30.00th=[ 26346], 40.00th=[ 31589], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 52691], 80.00th=[ 62129], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[132645], 99.50th=[177210], 99.90th=[250610], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 7, max= 111, per=25.21%, avg=48.91, stdev=19.11, samples=241 iops : min= 1, max= 27, avg=11.60, stdev= 4.80, samples=241 write: IOPS=12, BW=50.7KiB/s (51.9kB/s)(6260KiB/123483msec); 0 zone resets clat (usec): min=808, max=1165.5k, avg=36919.43, stdev=46880.00 lat (usec): min=809, max=1165.5k, avg=36922.69, stdev=46880.94 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1483], | 20.00th=[ 3621], 30.00th=[ 7242], 40.00th=[ 17433], | 50.00th=[ 26084], 60.00th=[ 36439], 70.00th=[ 47449], | 80.00th=[ 61604], 90.00th=[ 87557], 95.00th=[ 110625], | 99.00th=[ 158335], 99.50th=[ 177210], 99.90th=[ 287310], | 99.95th=[1166017], 99.99th=[1166017] bw ( KiB/s): min= 7, max= 112, per=24.89%, avg=50.52, stdev=20.64, samples=242 iops : min= 1, max= 28, avg=12.00, stdev= 5.18, samples=242 lat (usec) : 50=0.36%, 100=1.82%, 250=0.23%, 500=0.07%, 1000=0.26% lat (msec) : 2=6.41%, 4=4.10%, 10=6.77%, 20=9.47%, 50=40.04% lat (msec) : 100=25.13%, 250=5.18%, 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=5.26%, ctx=6396, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179713: Tue Aug 25 20:01:56 2026 read: IOPS=12, BW=49.4KiB/s (50.6kB/s)(6052KiB/122493msec) clat (usec): min=34, max=1074.2k, avg=44094.68, stdev=38474.56 lat (usec): min=34, max=1074.2k, avg=44097.99, stdev=38474.81 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 1582], 10.00th=[ 16057], | 20.00th=[ 21365], 30.00th=[ 26870], 40.00th=[ 32113], | 50.00th=[ 38536], 60.00th=[ 44827], 70.00th=[ 53216], | 80.00th=[ 62653], 90.00th=[ 77071], 95.00th=[ 92799], | 99.00th=[ 145753], 99.50th=[ 162530], 99.90th=[ 196084], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 104, per=25.28%, avg=49.04, stdev=18.28, samples=241 iops : min= 1, max= 26, avg=11.63, stdev= 4.58, samples=241 write: IOPS=12, BW=50.9KiB/s (52.1kB/s)(6236KiB/122493msec); 0 zone resets clat (usec): min=629, max=322057, avg=35455.15, stdev=37566.95 lat (usec): min=629, max=322059, avg=35459.35, stdev=37564.81 clat percentiles (usec): | 1.00th=[ 1012], 5.00th=[ 1205], 10.00th=[ 1434], 20.00th=[ 3097], | 30.00th=[ 7046], 40.00th=[ 15533], 50.00th=[ 24773], 60.00th=[ 34341], | 70.00th=[ 46924], 80.00th=[ 62653], 90.00th=[ 84411], 95.00th=[109577], | 99.00th=[156238], 99.50th=[196084], 99.90th=[231736], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 7, max= 135, per=24.97%, avg=50.69, stdev=21.93, samples=240 iops : min= 1, max= 33, avg=12.05, stdev= 5.51, samples=240 lat (usec) : 50=0.26%, 100=1.99%, 250=0.13%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.42% lat (msec) : 2=6.80%, 4=4.56%, 10=5.70%, 20=11.23%, 50=38.28% lat (msec) : 100=25.42%, 250=5.08%, 500=0.03%, 2000=0.03% cpu : usr=0.08%, sys=5.16%, ctx=6334, 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), 48.3KiB/s-49.4KiB/s (49.5kB/s-50.6kB/s), io=23.4MiB (24.6MB), run=122493-123488msec WRITE: bw=204KiB/s (208kB/s), 50.7KiB/s-51.6KiB/s (51.9kB/s-52.9kB/s), io=24.6MiB (25.7MB), run=122493-123488msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179712: Tue Aug 25 20:02:40 2026 read: IOPS=8, BW=35.9KiB/s (36.7kB/s)(5992KiB/167088msec) clat (msec): min=4, max=1146, avg=44.42, stdev=51.02 lat (msec): min=4, max=1146, avg=44.42, stdev=51.02 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 96], 95.00th=[ 133], | 99.00th=[ 211], 99.50th=[ 249], 99.90th=[ 380], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 119, per=25.40%, avg=36.32, stdev=24.62, samples=320 iops : min= 1, max= 29, avg= 8.41, stdev= 6.20, samples=320 write: IOPS=9, BW=37.7KiB/s (38.6kB/s)(6296KiB/167088msec); 0 zone resets clat (msec): min=12, max=383, avg=63.56, stdev=44.86 lat (msec): min=12, max=383, avg=63.56, stdev=44.87 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 49], 60.00th=[ 59], | 70.00th=[ 74], 80.00th=[ 94], 90.00th=[ 123], 95.00th=[ 153], | 99.00th=[ 232], 99.50th=[ 249], 99.90th=[ 372], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 7, max= 128, per=25.35%, avg=38.02, stdev=23.90, samples=321 iops : min= 1, max= 32, avg= 8.84, stdev= 6.02, samples=321 lat (msec) : 10=2.21%, 20=15.49%, 50=44.43%, 100=24.67%, 250=12.73% lat (msec) : 500=0.42%, 2000=0.03% cpu : usr=0.06%, sys=1.63%, ctx=4791, 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=179714: Tue Aug 25 20:02:40 2026 read: IOPS=8, BW=35.6KiB/s (36.5kB/s)(5940KiB/166855msec) clat (msec): min=5, max=1113, avg=43.10, stdev=47.34 lat (msec): min=5, max=1113, avg=43.10, stdev=47.34 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 60], 90.00th=[ 96], 95.00th=[ 126], | 99.00th=[ 199], 99.50th=[ 218], 99.90th=[ 268], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 135, per=25.42%, avg=36.36, stdev=25.45, samples=318 iops : min= 1, max= 33, avg= 8.42, stdev= 6.41, samples=318 write: IOPS=9, BW=38.0KiB/s (38.0kB/s)(6348KiB/166855msec); 0 zone resets clat (msec): min=12, max=371, avg=64.52, stdev=45.73 lat (msec): min=12, max=371, avg=64.52, stdev=45.73 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 50], 60.00th=[ 62], | 70.00th=[ 75], 80.00th=[ 95], 90.00th=[ 125], 95.00th=[ 157], | 99.00th=[ 228], 99.50th=[ 251], 99.90th=[ 321], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 7, max= 135, per=25.44%, avg=38.16, stdev=23.92, samples=324 iops : min= 1, max= 33, avg= 8.87, stdev= 6.01, samples=324 lat (msec) : 10=2.05%, 20=15.23%, 50=44.60%, 100=24.51%, 250=13.28% lat (msec) : 500=0.29%, 2000=0.03% cpu : usr=0.06%, sys=1.65%, ctx=4783, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179715: Tue Aug 25 20:02:40 2026 read: IOPS=9, BW=36.3KiB/s (37.2kB/s)(6028KiB/166009msec) clat (msec): min=5, max=310, avg=42.63, stdev=37.84 lat (msec): min=5, max=310, avg=42.64, stdev=37.84 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 62], 90.00th=[ 96], 95.00th=[ 126], | 99.00th=[ 180], 99.50th=[ 207], 99.90th=[ 264], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 7, max= 134, per=25.62%, avg=36.63, stdev=24.08, samples=320 iops : min= 1, max= 33, avg= 8.49, stdev= 6.05, samples=320 write: IOPS=9, BW=37.7KiB/s (38.6kB/s)(6260KiB/166009msec); 0 zone resets clat (msec): min=11, max=1165, avg=64.75, stdev=53.54 lat (msec): min=11, max=1165, avg=64.75, stdev=53.54 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 49], 60.00th=[ 60], | 70.00th=[ 74], 80.00th=[ 96], 90.00th=[ 125], 95.00th=[ 153], | 99.00th=[ 232], 99.50th=[ 288], 99.90th=[ 376], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 120, per=25.02%, avg=37.53, stdev=24.09, samples=324 iops : min= 1, max= 30, avg= 8.72, stdev= 6.07, samples=324 lat (msec) : 10=2.54%, 20=14.52%, 50=45.77%, 100=23.50%, 250=13.25% lat (msec) : 500=0.39%, 2000=0.03% cpu : usr=0.06%, sys=1.71%, ctx=4797, 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=179716: Tue Aug 25 20:02:40 2026 read: IOPS=9, BW=36.3KiB/s (37.1kB/s)(6052KiB/166844msec) clat (msec): min=5, max=378, avg=42.94, stdev=40.25 lat (msec): min=5, max=378, avg=42.94, stdev=40.25 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 46], 80.00th=[ 65], 90.00th=[ 96], 95.00th=[ 125], | 99.00th=[ 199], 99.50th=[ 218], 99.90th=[ 313], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 7, max= 135, per=25.76%, avg=36.83, stdev=25.81, samples=317 iops : min= 1, max= 33, avg= 8.54, stdev= 6.50, samples=317 write: IOPS=9, BW=37.4KiB/s (38.3kB/s)(6236KiB/166844msec); 0 zone resets clat (msec): min=11, max=1079, avg=65.01, stdev=51.95 lat (msec): min=11, max=1079, avg=65.01, stdev=51.95 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 49], 60.00th=[ 61], | 70.00th=[ 77], 80.00th=[ 97], 90.00th=[ 126], 95.00th=[ 150], | 99.00th=[ 222], 99.50th=[ 255], 99.90th=[ 376], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 118, per=24.88%, avg=37.33, stdev=23.01, samples=323 iops : min= 1, max= 29, avg= 8.66, stdev= 5.80, samples=323 lat (msec) : 10=2.44%, 20=16.37%, 50=43.39%, 100=24.32%, 250=13.09% lat (msec) : 500=0.36%, 2000=0.03% cpu : usr=0.06%, sys=1.65%, ctx=4793, 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=144KiB/s (147kB/s), 35.6KiB/s-36.3KiB/s (36.5kB/s-37.2kB/s), io=23.4MiB (24.6MB), run=166009-167088msec WRITE: bw=150KiB/s (154kB/s), 37.4KiB/s-38.0KiB/s (38.3kB/s-38.0kB/s), io=24.6MiB (25.7MB), run=166009-167088msec 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=179776: Tue Aug 25 20:03:18 2026 read: IOPS=13, BW=212KiB/s (217kB/s)(5920KiB/27922msec) clat (usec): min=33, max=174833, avg=39731.45, stdev=28466.80 lat (usec): min=33, max=174834, avg=39732.64, stdev=28466.78 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 58], 10.00th=[ 70], 20.00th=[ 19792], | 30.00th=[ 25822], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 49021], 80.00th=[ 56886], 90.00th=[ 66323], 95.00th=[ 92799], | 99.00th=[143655], 99.50th=[149947], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 61, max= 379, per=24.43%, avg=209.35, stdev=81.20, samples=54 iops : min= 3, max= 23, avg=12.33, stdev= 5.15, samples=54 write: IOPS=14, BW=228KiB/s (234kB/s)(6368KiB/27922msec); 0 zone resets clat (usec): min=1057, max=246561, avg=32138.51, stdev=33413.11 lat (usec): min=1058, max=246563, avg=32146.19, stdev=33413.44 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1745], 10.00th=[ 2737], 20.00th=[ 4883], | 30.00th=[ 8225], 40.00th=[ 13566], 50.00th=[ 20841], 60.00th=[ 30278], | 70.00th=[ 41681], 80.00th=[ 57410], 90.00th=[ 77071], 95.00th=[ 90702], | 99.00th=[156238], 99.50th=[214959], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 21, max= 569, per=25.87%, avg=233.38, stdev=104.93, samples=53 iops : min= 1, max= 35, avg=13.85, stdev= 6.60, samples=53 lat (usec) : 50=0.52%, 100=5.60%, 250=0.13%, 500=0.13%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=3.65%, 4=4.82%, 10=9.51%, 20=10.42%, 50=38.28% lat (msec) : 100=22.92%, 250=3.65% cpu : usr=0.07%, sys=5.69%, ctx=1592, 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=179777: Tue Aug 25 20:03:18 2026 read: IOPS=13, BW=210KiB/s (215kB/s)(5744KiB/27380msec) clat (usec): min=41, max=272371, avg=41291.94, stdev=30180.06 lat (usec): min=41, max=272372, avg=41293.13, stdev=30180.12 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 59], 10.00th=[ 79], 20.00th=[ 21890], | 30.00th=[ 27132], 40.00th=[ 30278], 50.00th=[ 35390], 60.00th=[ 43254], | 70.00th=[ 53216], 80.00th=[ 58459], 90.00th=[ 77071], 95.00th=[ 90702], | 99.00th=[139461], 99.50th=[202376], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 43, max= 478, per=24.55%, avg=210.38, stdev=83.95, samples=53 iops : min= 2, max= 29, avg=12.40, stdev= 5.25, samples=53 write: IOPS=14, BW=239KiB/s (245kB/s)(6544KiB/27380msec); 0 zone resets clat (usec): min=1121, max=180896, avg=30099.29, stdev=28847.43 lat (usec): min=1123, max=180898, avg=30103.49, stdev=28845.30 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1729], 10.00th=[ 2376], 20.00th=[ 4752], | 30.00th=[ 8979], 40.00th=[ 13173], 50.00th=[ 22414], 60.00th=[ 28967], | 70.00th=[ 39584], 80.00th=[ 52167], 90.00th=[ 74974], 95.00th=[ 85459], | 99.00th=[113771], 99.50th=[129500], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 94, max= 414, per=26.57%, avg=239.68, stdev=82.66, samples=53 iops : min= 5, max= 25, avg=14.25, stdev= 5.20, samples=53 lat (usec) : 50=1.04%, 100=3.78%, 250=0.13%, 500=0.13% lat (msec) : 2=4.69%, 4=4.56%, 10=8.98%, 20=10.16%, 50=39.06% lat (msec) : 100=24.87%, 250=2.47%, 500=0.13% cpu : usr=0.08%, sys=6.16%, ctx=1613, 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=179778: Tue Aug 25 20:03:18 2026 read: IOPS=14, BW=227KiB/s (233kB/s)(6256KiB/27539msec) clat (usec): min=37, max=161130, avg=38677.03, stdev=27995.82 lat (usec): min=37, max=161130, avg=38678.49, stdev=27995.48 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 17695], | 30.00th=[ 25297], 40.00th=[ 30540], 50.00th=[ 35914], 60.00th=[ 42730], | 70.00th=[ 46924], 80.00th=[ 58459], 90.00th=[ 72877], 95.00th=[ 87557], | 99.00th=[133694], 99.50th=[145753], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 93, max= 478, per=26.60%, avg=228.00, stdev=87.76, samples=54 iops : min= 5, max= 29, avg=13.52, stdev= 5.51, samples=54 write: IOPS=13, BW=219KiB/s (224kB/s)(6032KiB/27539msec); 0 zone resets clat (usec): min=1477, max=192155, avg=32365.37, stdev=33292.06 lat (usec): min=1479, max=192157, avg=32368.25, stdev=33292.95 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1811], 10.00th=[ 2376], 20.00th=[ 5014], | 30.00th=[ 8979], 40.00th=[ 14746], 50.00th=[ 21103], 60.00th=[ 29754], | 70.00th=[ 40633], 80.00th=[ 54789], 90.00th=[ 78119], 95.00th=[103285], | 99.00th=[149947], 99.50th=[183501], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 63, max= 478, per=24.12%, avg=217.56, stdev=96.96, samples=54 iops : min= 3, max= 29, avg=12.85, stdev= 6.08, samples=54 lat (usec) : 50=0.91%, 100=6.38%, 250=0.39%, 500=0.13% lat (msec) : 2=3.91%, 4=4.43%, 10=8.07%, 20=11.07%, 50=39.97% lat (msec) : 100=20.31%, 250=4.43% cpu : usr=0.07%, sys=6.31%, ctx=1606, 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=179779: Tue Aug 25 20:03:18 2026 read: IOPS=14, BW=230KiB/s (236kB/s)(6032KiB/26182msec) clat (usec): min=37, max=242433, avg=38788.12, stdev=31133.26 lat (usec): min=37, max=242433, avg=38789.95, stdev=31132.48 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 16450], | 30.00th=[ 25560], 40.00th=[ 30802], 50.00th=[ 35914], 60.00th=[ 40633], | 70.00th=[ 47973], 80.00th=[ 57410], 90.00th=[ 69731], 95.00th=[ 80217], | 99.00th=[189793], 99.50th=[196084], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 62, max= 382, per=26.77%, avg=229.43, stdev=78.83, samples=51 iops : min= 3, max= 23, avg=13.61, stdev= 4.98, samples=51 write: IOPS=14, BW=239KiB/s (245kB/s)(6256KiB/26182msec); 0 zone resets clat (usec): min=1229, max=221145, avg=29245.96, stdev=32906.78 lat (usec): min=1231, max=221147, avg=29250.75, stdev=32905.27 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1876], 10.00th=[ 2474], 20.00th=[ 4424], | 30.00th=[ 6194], 40.00th=[ 10159], 50.00th=[ 17957], 60.00th=[ 27657], | 70.00th=[ 34866], 80.00th=[ 47449], 90.00th=[ 72877], 95.00th=[ 93848], | 99.00th=[145753], 99.50th=[196084], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 63, max= 383, per=26.61%, avg=239.98, stdev=78.10, samples=51 iops : min= 3, max= 23, avg=14.25, stdev= 4.94, samples=51 lat (usec) : 50=0.91%, 100=5.99%, 250=0.65%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=3.78%, 4=5.08%, 10=11.85%, 20=10.03%, 50=37.89% lat (msec) : 100=20.05%, 250=3.39% cpu : usr=0.08%, sys=6.35%, ctx=1546, 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=858KiB/s (878kB/s), 210KiB/s-230KiB/s (215kB/s-236kB/s), io=23.4MiB (24.5MB), run=26182-27922msec WRITE: bw=903KiB/s (924kB/s), 219KiB/s-239KiB/s (224kB/s-245kB/s), io=24.6MiB (25.8MB), run=26182-27922msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179772: Tue Aug 25 20:03:33 2026 read: IOPS=8, BW=143KiB/s (146kB/s)(5920KiB/41503msec) clat (msec): min=8, max=237, avg=44.16, stdev=34.23 lat (msec): min=8, max=237, avg=44.16, stdev=34.23 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 46], 80.00th=[ 62], 90.00th=[ 91], 95.00th=[ 116], | 99.00th=[ 171], 99.50th=[ 218], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 61, max= 384, per=25.21%, avg=141.91, stdev=65.57, samples=82 iops : min= 3, max= 24, avg= 8.10, stdev= 4.17, samples=82 write: IOPS=9, BW=153KiB/s (157kB/s)(6368KiB/41503msec); 0 zone resets clat (msec): min=13, max=240, avg=63.10, stdev=38.21 lat (msec): min=13, max=240, avg=63.11, stdev=38.21 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 41], 40.00th=[ 45], 50.00th=[ 52], 60.00th=[ 61], | 70.00th=[ 69], 80.00th=[ 86], 90.00th=[ 112], 95.00th=[ 148], | 99.00th=[ 205], 99.50th=[ 230], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 31, max= 380, per=26.21%, avg=155.16, stdev=74.82, samples=81 iops : min= 1, max= 23, avg= 8.93, stdev= 4.77, samples=81 lat (msec) : 10=1.17%, 20=9.11%, 50=48.96%, 100=29.82%, 250=10.94% cpu : usr=0.07%, sys=1.76%, ctx=1121, 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=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=179773: Tue Aug 25 20:03:33 2026 read: IOPS=8, BW=135KiB/s (138kB/s)(5744KiB/42531msec) clat (msec): min=8, max=221, avg=44.44, stdev=34.62 lat (msec): min=8, max=221, avg=44.44, stdev=34.62 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 64], 90.00th=[ 90], 95.00th=[ 120], | 99.00th=[ 178], 99.50th=[ 194], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 30, max= 348, per=24.20%, avg=136.27, stdev=77.87, samples=83 iops : min= 1, max= 21, avg= 7.75, stdev= 4.91, samples=83 write: IOPS=9, BW=154KiB/s (158kB/s)(6544KiB/42531msec); 0 zone resets clat (msec): min=13, max=307, avg=64.10, stdev=41.55 lat (msec): min=13, max=307, avg=64.11, stdev=41.55 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 53], 60.00th=[ 62], | 70.00th=[ 73], 80.00th=[ 84], 90.00th=[ 117], 95.00th=[ 148], | 99.00th=[ 236], 99.50th=[ 241], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 31, max= 416, per=26.53%, avg=157.09, stdev=76.17, samples=82 iops : min= 1, max= 26, avg= 9.05, stdev= 4.83, samples=82 lat (msec) : 10=1.04%, 20=9.77%, 50=46.88%, 100=31.38%, 250=10.68% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=1.84%, ctx=1248, 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=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=179774: Tue Aug 25 20:03:33 2026 read: IOPS=9, BW=151KiB/s (155kB/s)(6256KiB/41402msec) clat (msec): min=6, max=215, avg=44.81, stdev=33.58 lat (msec): min=6, max=215, avg=44.81, stdev=33.58 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 38], | 70.00th=[ 49], 80.00th=[ 67], 90.00th=[ 94], 95.00th=[ 113], | 99.00th=[ 159], 99.50th=[ 182], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 31, max= 416, per=27.35%, avg=153.99, stdev=84.24, samples=80 iops : min= 1, max= 26, avg= 8.85, stdev= 5.38, samples=80 write: IOPS=9, BW=146KiB/s (149kB/s)(6032KiB/41402msec); 0 zone resets clat (msec): min=12, max=315, avg=62.79, stdev=38.94 lat (msec): min=12, max=315, avg=62.80, stdev=38.94 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 45], 50.00th=[ 52], 60.00th=[ 59], | 70.00th=[ 69], 80.00th=[ 87], 90.00th=[ 112], 95.00th=[ 138], | 99.00th=[ 226], 99.50th=[ 249], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 31, max= 351, per=24.27%, avg=143.67, stdev=72.60, samples=81 iops : min= 1, max= 21, avg= 8.21, stdev= 4.57, samples=81 lat (msec) : 10=1.04%, 20=8.59%, 50=50.39%, 100=29.17%, 250=10.68% lat (msec) : 500=0.13% cpu : usr=0.07%, sys=1.78%, ctx=1182, 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=179775: Tue Aug 25 20:03:33 2026 read: IOPS=9, BW=145KiB/s (148kB/s)(6032KiB/41685msec) clat (msec): min=5, max=257, avg=46.32, stdev=37.75 lat (msec): min=5, max=257, avg=46.32, stdev=37.75 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 42], | 70.00th=[ 51], 80.00th=[ 70], 90.00th=[ 100], 95.00th=[ 125], | 99.00th=[ 184], 99.50th=[ 211], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 416, per=26.68%, avg=150.19, stdev=77.41, samples=79 iops : min= 1, max= 26, avg= 8.61, stdev= 4.94, samples=79 write: IOPS=9, BW=150KiB/s (154kB/s)(6256KiB/41685msec); 0 zone resets clat (msec): min=8, max=239, avg=61.23, stdev=36.48 lat (msec): min=8, max=239, avg=61.25, stdev=36.47 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 51], 60.00th=[ 58], | 70.00th=[ 70], 80.00th=[ 84], 90.00th=[ 105], 95.00th=[ 129], | 99.00th=[ 205], 99.50th=[ 239], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 31, max= 349, per=25.41%, avg=150.44, stdev=78.75, samples=82 iops : min= 1, max= 21, avg= 8.63, stdev= 4.99, samples=82 lat (msec) : 10=1.30%, 20=10.29%, 50=47.79%, 100=29.56%, 250=10.94% lat (msec) : 500=0.13% cpu : usr=0.06%, sys=1.82%, ctx=1203, 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=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=563KiB/s (577kB/s), 135KiB/s-151KiB/s (138kB/s-155kB/s), io=23.4MiB (24.5MB), run=41402-42531msec WRITE: bw=593KiB/s (607kB/s), 146KiB/s-154KiB/s (149kB/s-158kB/s), io=24.6MiB (25.8MB), run=41402-42531msec 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=179796: Tue Aug 25 20:03:51 2026 read: IOPS=1, BW=1779KiB/s (1821kB/s)(7168KiB/4030msec) clat (usec): min=457, max=363378, avg=251964.79, stdev=127417.92 lat (usec): min=458, max=363379, avg=251976.26, stdev=127413.19 clat percentiles (usec): | 1.00th=[ 457], 5.00th=[ 457], 10.00th=[ 457], 20.00th=[198181], | 30.00th=[231736], 40.00th=[231736], 50.00th=[283116], 60.00th=[320865], | 70.00th=[320865], 80.00th=[362808], 90.00th=[362808], 95.00th=[362808], | 99.00th=[362808], 99.50th=[362808], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 1822, max= 2817, per=58.82%, avg=2099.20, stdev=407.07, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1270KiB/s (1301kB/s)(5120KiB/4030msec); 0 zone resets clat (msec): min=244, max=675, avg=434.85, stdev=179.41 lat (msec): min=244, max=678, avg=435.48, stdev=180.36 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 567], 80.00th=[ 567], 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= 1889, max= 3976, per=49.51%, avg=2474.00, stdev=1003.23, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33% lat (msec) : 250=25.00%, 500=50.00%, 750=16.67% cpu : usr=0.00%, sys=11.74%, ctx=181, 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=179797: Tue Aug 25 20:03:51 2026 read: IOPS=0, BW=357KiB/s (366kB/s)(2048KiB/5737msec) clat (msec): min=36, max=586, avg=311.70, stdev=388.50 lat (msec): min=36, max=586, avg=311.70, stdev=388.50 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 37], 10.00th=[ 37], 20.00th=[ 37], | 30.00th=[ 37], 40.00th=[ 37], 50.00th=[ 37], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1822, max= 2039, per=54.09%, avg=1930.50, stdev=153.44, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1785KiB/s (1828kB/s)(10.0MiB/5737msec); 0 zone resets clat (msec): min=196, max=1464, avg=491.07, stdev=392.31 lat (msec): min=196, max=1464, avg=491.64, stdev=392.11 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 209], | 30.00th=[ 251], 40.00th=[ 284], 50.00th=[ 292], 60.00th=[ 326], | 70.00th=[ 460], 80.00th=[ 676], 90.00th=[ 751], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 1889, max= 4039, per=53.22%, avg=2659.17, stdev=1040.27, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 50=8.33%, 250=16.67%, 500=41.67%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=10.48%, ctx=140, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179798: Tue Aug 25 20:03:51 2026 read: IOPS=1, BW=1290KiB/s (1321kB/s)(6144KiB/4763msec) clat (usec): min=457, max=332963, avg=125389.48, stdev=145411.22 lat (usec): min=458, max=332965, avg=125390.71, stdev=145411.44 clat percentiles (usec): | 1.00th=[ 457], 5.00th=[ 457], 10.00th=[ 457], 20.00th=[ 482], | 30.00th=[ 482], 40.00th=[ 1037], 50.00th=[ 1037], 60.00th=[177210], | 70.00th=[240124], 80.00th=[240124], 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= 4071, max= 6119, per=100.00%, avg=5095.00, stdev=1448.15, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1290KiB/s (1321kB/s)(6144KiB/4763msec); 0 zone resets clat (msec): min=194, max=1917, avg=631.80, stdev=660.94 lat (msec): min=194, max=1917, avg=631.85, stdev=660.96 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 477], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 1921], 95.00th=[ 1921], | 99.00th=[ 1921], 99.50th=[ 1921], 99.90th=[ 1921], 99.95th=[ 1921], | 99.99th=[ 1921] bw ( KiB/s): min= 1822, max= 4079, per=48.92%, avg=2444.50, stdev=1091.80, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=16.67% lat (msec) : 2=8.33%, 250=33.33%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.04%, sys=9.76%, ctx=189, 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=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=179799: Tue Aug 25 20:03:51 2026 read: IOPS=1, BW=1391KiB/s (1424kB/s)(5120KiB/3681msec) clat (usec): min=738, max=283872, avg=99461.63, stdev=137281.10 lat (usec): min=739, max=283874, avg=99463.04, stdev=137281.04 clat percentiles (usec): | 1.00th=[ 742], 5.00th=[ 742], 10.00th=[ 742], 20.00th=[ 742], | 30.00th=[ 1020], 40.00th=[ 1020], 50.00th=[ 1303], 60.00th=[ 1303], | 70.00th=[210764], 80.00th=[210764], 90.00th=[283116], 95.00th=[283116], | 99.00th=[283116], 99.50th=[283116], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 1980, max= 5988, per=100.00%, avg=3984.00, stdev=2834.08, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1947KiB/s (1994kB/s)(7168KiB/3681msec); 0 zone resets clat (msec): min=180, max=809, avg=432.41, stdev=254.13 lat (msec): min=181, max=809, avg=432.49, stdev=254.13 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 188], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 296], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 651], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1508, max= 3976, per=56.70%, avg=2833.50, stdev=1319.80, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=16.67%, 250=25.00%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=14.76%, ctx=131, 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=3570KiB/s (3655kB/s), 357KiB/s-1779KiB/s (366kB/s-1821kB/s), io=20.0MiB (20.0MB), run=3681-5737msec WRITE: bw=4998KiB/s (5118kB/s), 1270KiB/s-1947KiB/s (1301kB/s-1994kB/s), io=28.0MiB (29.4MB), run=3681-5737msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179792: Tue Aug 25 20:03:52 2026 read: IOPS=1, BW=1281KiB/s (1312kB/s)(7168KiB/5594msec) clat (msec): min=77, max=1475, avg=430.16, stdev=501.15 lat (msec): min=77, max=1475, avg=430.17, stdev=501.15 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 93], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 188], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 634], 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= 1528, max= 4096, per=72.51%, avg=2345.80, stdev=1002.74, samples=5 iops : min= 1, max= 4, avg= 1.60, stdev= 1.34, samples=5 write: IOPS=0, BW=915KiB/s (937kB/s)(5120KiB/5594msec); 0 zone resets clat (msec): min=282, max=799, avg=497.13, stdev=193.39 lat (msec): min=282, max=800, avg=497.33, stdev=193.53 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1992, max= 3864, per=58.16%, avg=2634.67, stdev=1065.00, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=16.67%, 250=16.67%, 500=33.33%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=4.13%, ctx=78, 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=179793: Tue Aug 25 20:03:52 2026 read: IOPS=0, BW=324KiB/s (331kB/s)(2048KiB/6329msec) clat (msec): min=436, max=517, avg=476.82, stdev=57.51 lat (msec): min=436, max=517, avg=476.82, stdev=57.51 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 518], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 1703, max= 1992, per=57.11%, avg=1847.50, stdev=204.35, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1618KiB/s (1657kB/s)(10.0MiB/6329msec); 0 zone resets clat (msec): min=132, max=1415, avg=523.44, stdev=412.11 lat (msec): min=132, max=1415, avg=524.31, stdev=411.79 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 255], | 30.00th=[ 275], 40.00th=[ 279], 50.00th=[ 338], 60.00th=[ 363], | 70.00th=[ 388], 80.00th=[ 768], 90.00th=[ 1020], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 1602, max= 4087, per=57.15%, avg=2588.83, stdev=1167.34, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=8.33%, 500=58.33%, 750=8.33%, 1000=8.33%, 2000=16.67% cpu : usr=0.00%, sys=4.36%, ctx=108, 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=179794: Tue Aug 25 20:03:52 2026 read: IOPS=1, BW=1066KiB/s (1092kB/s)(6144KiB/5764msec) clat (msec): min=79, max=898, avg=286.53, stdev=308.71 lat (msec): min=79, max=898, avg=286.53, stdev=308.71 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 186], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1992, max= 3864, per=76.75%, avg=2482.75, stdev=921.12, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1066KiB/s (1092kB/s)(6144KiB/5764msec); 0 zone resets clat (msec): min=208, max=1830, avg=639.41, stdev=600.13 lat (msec): min=208, max=1830, avg=639.51, stdev=600.13 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 584], 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= 1932, max= 3407, per=51.95%, avg=2353.50, stdev=704.14, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=2.86%, ctx=92, 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=179795: Tue Aug 25 20:03:52 2026 read: IOPS=0, BW=817KiB/s (837kB/s)(5120KiB/6265msec) clat (msec): min=83, max=613, avg=331.78, stdev=221.26 lat (msec): min=83, max=613, avg=331.78, stdev=221.26 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 84], | 30.00th=[ 131], 40.00th=[ 131], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 1932, max= 4055, per=82.22%, avg=2659.67, stdev=1208.77, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1144KiB/s (1172kB/s)(7168KiB/6265msec); 0 zone resets clat (msec): min=160, max=1800, avg=626.36, stdev=551.31 lat (msec): min=160, max=1800, avg=626.51, stdev=551.31 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 211], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 514], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 684], 90.00th=[ 1804], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 1602, max= 2048, per=41.67%, avg=1887.80, stdev=217.76, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=25.00%, 750=33.33%, 2000=8.33% cpu : usr=0.00%, sys=2.62%, ctx=69, 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=3236KiB/s (3314kB/s), 324KiB/s-1281KiB/s (331kB/s-1312kB/s), io=20.0MiB (20.0MB), run=5594-6329msec WRITE: bw=4530KiB/s (4639kB/s), 915KiB/s-1618KiB/s (937kB/s-1657kB/s), io=28.0MiB (29.4MB), run=5594-6329msec 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=179810: Tue Aug 25 20:04:06 2026 read: IOPS=1, BW=4486KiB/s (4594kB/s)(12.0MiB/2739msec) clat (msec): min=733, max=1045, avg=874.79, stdev=158.18 lat (msec): min=733, max=1045, avg=874.79, stdev=158.18 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 1045], 80.00th=[ 1045], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7713, max= 7968, per=100.00%, avg=7840.50, stdev=180.31, 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=0.11%, sys=10.56%, ctx=376, 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=179811: Tue Aug 25 20:04:06 2026 read: IOPS=0, BW=1157KiB/s (1184kB/s)(4096KiB/3541msec) clat (nsec): min=870925k, max=870925k, avg=870925345.00, stdev= 0.00 lat (nsec): min=870928k, max=870928k, avg=870928283.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 869], 5.00th=[ 869], 10.00th=[ 869], 20.00th=[ 869], | 30.00th=[ 869], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7713, max= 7713, per=100.00%, avg=7713.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2313KiB/s (2369kB/s)(8192KiB/3541msec); 0 zone resets clat (msec): min=1283, max=1287, avg=1285.41, stdev= 3.30 lat (msec): min=1285, max=1287, avg=1286.52, stdev= 2.02 clat percentiles (msec): | 1.00th=[ 1284], 5.00th=[ 1284], 10.00th=[ 1284], 20.00th=[ 1284], | 30.00th=[ 1284], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 8175, max= 8175, per=88.60%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.06%, sys=4.07%, ctx=84, 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=179812: Tue Aug 25 20:04:06 2026 write: IOPS=0, BW=3675KiB/s (3763kB/s)(12.0MiB/3344msec); 0 zone resets clat (msec): min=634, max=1618, avg=1094.12, stdev=495.24 lat (msec): min=635, max=1619, avg=1094.69, stdev=495.52 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 1028], 50.00th=[ 1028], 60.00th=[ 1028], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 7953, max= 7968, per=86.27%, avg=7960.50, stdev=10.61, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.26%, ctx=38, 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=179813: Tue Aug 25 20:04:06 2026 write: IOPS=0, BW=3460KiB/s (3543kB/s)(12.0MiB/3551msec); 0 zone resets clat (msec): min=388, max=2382, avg=1166.33, stdev=1067.06 lat (msec): min=389, max=2383, avg=1166.76, stdev=1067.01 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 2400], 80.00th=[ 2400], 90.00th=[ 2400], 95.00th=[ 2400], | 99.00th=[ 2400], 99.50th=[ 2400], 99.90th=[ 2400], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7713, max= 7713, per=83.59%, avg=7713.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.69%, ctx=46, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4627KiB/s (4738kB/s), 1157KiB/s-4486KiB/s (1184kB/s-4594kB/s), io=16.0MiB (16.8MB), run=2739-3541msec WRITE: bw=9228KiB/s (9449kB/s), 2313KiB/s-3675KiB/s (2369kB/s-3763kB/s), io=32.0MiB (33.6MB), run=3344-3551msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179806: Tue Aug 25 20:04:06 2026 read: IOPS=0, BW=3839KiB/s (3931kB/s)(12.0MiB/3201msec) clat (msec): min=447, max=1805, avg=1056.21, stdev=689.85 lat (msec): min=448, max=1805, avg=1056.21, stdev=689.85 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 1804], 80.00th=[ 1804], 90.00th=[ 1804], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 5944, max= 8110, per=100.00%, avg=7027.00, stdev=1531.59, 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=2.75%, ctx=39, 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=179807: Tue Aug 25 20:04:06 2026 read: IOPS=0, BW=1242KiB/s (1272kB/s)(4096KiB/3298msec) clat (nsec): min=275420k, max=275420k, avg=275420213.00, stdev= 0.00 lat (nsec): min=275423k, max=275423k, avg=275423078.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 275], 95.00th=[ 275], | 99.00th=[ 275], 99.50th=[ 275], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] 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=2484KiB/s (2544kB/s)(8192KiB/3298msec); 0 zone resets clat (msec): min=1373, max=1529, avg=1451.63, stdev=110.24 lat (msec): min=1373, max=1532, avg=1453.00, stdev=111.88 clat percentiles (msec): | 1.00th=[ 1368], 5.00th=[ 1368], 10.00th=[ 1368], 20.00th=[ 1368], | 30.00th=[ 1368], 40.00th=[ 1368], 50.00th=[ 1368], 60.00th=[ 1536], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, 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=52, 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=179808: Tue Aug 25 20:04:06 2026 write: IOPS=0, BW=2921KiB/s (2991kB/s)(12.0MiB/4207msec); 0 zone resets clat (msec): min=220, max=3185, avg=1389.62, stdev=1578.51 lat (msec): min=220, max=3185, avg=1389.97, stdev=1578.51 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 3171], 80.00th=[ 3171], 90.00th=[ 3171], 95.00th=[ 3171], | 99.00th=[ 3171], 99.50th=[ 3171], 99.90th=[ 3171], 99.95th=[ 3171], | 99.99th=[ 3171] bw ( KiB/s): min= 7953, max= 8175, per=100.00%, avg=8064.00, stdev=156.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.26%, ctx=44, 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=179809: Tue Aug 25 20:04:06 2026 write: IOPS=1, BW=4967KiB/s (5086kB/s)(12.0MiB/2474msec); 0 zone resets clat (msec): min=208, max=1851, avg=788.15, stdev=922.22 lat (msec): min=209, max=1851, avg=788.50, stdev=922.18 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min=12564, max=12564, per=100.00%, avg=12564.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.96%, ctx=38, 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=4968KiB/s (5087kB/s), 1242KiB/s-3839KiB/s (1272kB/s-3931kB/s), io=16.0MiB (16.8MB), run=3201-3298msec WRITE: bw=7789KiB/s (7976kB/s), 2484KiB/s-4967KiB/s (2544kB/s-5086kB/s), io=32.0MiB (33.6MB), run=2474-4207msec