== sanity test 398b: DIO and buffer IO race ============== 04:55:57 (1788512157) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.02059 s, 8.4 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=180831: Fri Sep 4 04:58:13 2026 read: IOPS=12, BW=50.4KiB/s (51.6kB/s)(5992KiB/119004msec) clat (usec): min=34, max=238938, avg=42472.90, stdev=27994.89 lat (usec): min=35, max=238939, avg=42474.55, stdev=27995.15 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 9765], 10.00th=[ 16581], 20.00th=[ 22152], | 30.00th=[ 25822], 40.00th=[ 30278], 50.00th=[ 36439], 60.00th=[ 42206], | 70.00th=[ 50070], 80.00th=[ 58983], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[141558], 99.50th=[156238], 99.90th=[193987], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 7, max= 111, per=24.77%, avg=49.79, stdev=19.97, samples=235 iops : min= 1, max= 27, avg=11.78, stdev= 5.02, samples=235 write: IOPS=13, BW=52.9KiB/s (54.2kB/s)(6296KiB/119004msec); 0 zone resets clat (usec): min=976, max=554391, avg=34865.66, stdev=39168.55 lat (usec): min=977, max=554391, avg=34898.33, stdev=39185.95 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1319], 10.00th=[ 1909], 20.00th=[ 3982], | 30.00th=[ 7767], 40.00th=[ 15664], 50.00th=[ 24249], 60.00th=[ 32375], | 70.00th=[ 43254], 80.00th=[ 57410], 90.00th=[ 87557], 95.00th=[106431], | 99.00th=[168821], 99.50th=[198181], 99.90th=[283116], 99.95th=[557843], | 99.99th=[557843] bw ( KiB/s): min= 7, max= 119, per=24.89%, avg=52.52, stdev=21.66, samples=234 iops : min= 1, max= 29, avg=12.47, stdev= 5.45, samples=234 lat (usec) : 50=0.29%, 100=1.27%, 250=0.36%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.50%, 4=4.75%, 10=7.52%, 20=11.07%, 50=41.70% lat (msec) : 100=21.97%, 250=5.31%, 500=0.03%, 750=0.03% cpu : usr=0.09%, sys=5.63%, ctx=6640, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180832: Fri Sep 4 04:58:13 2026 read: IOPS=12, BW=50.1KiB/s (51.3kB/s)(5940KiB/118507msec) clat (usec): min=38, max=313290, avg=43308.68, stdev=29251.52 lat (usec): min=39, max=313291, avg=43310.73, stdev=29251.67 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 11731], 10.00th=[ 16712], 20.00th=[ 22152], | 30.00th=[ 26608], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 51643], 80.00th=[ 60031], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[149947], 99.50th=[166724], 99.90th=[308282], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 6, max= 118, per=24.68%, avg=49.61, stdev=18.63, samples=234 iops : min= 1, max= 29, avg=11.74, stdev= 4.70, samples=234 write: IOPS=13, BW=53.6KiB/s (54.9kB/s)(6348KiB/118507msec); 0 zone resets clat (usec): min=1006, max=580806, avg=33841.55, stdev=38163.58 lat (usec): min=1006, max=580807, avg=33849.41, stdev=38164.23 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1270], 10.00th=[ 1663], 20.00th=[ 3785], | 30.00th=[ 7635], 40.00th=[ 15270], 50.00th=[ 23462], 60.00th=[ 32375], | 70.00th=[ 42730], 80.00th=[ 58459], 90.00th=[ 80217], 95.00th=[100140], | 99.00th=[152044], 99.50th=[202376], 99.90th=[270533], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 7, max= 142, per=25.23%, avg=53.23, stdev=22.41, samples=233 iops : min= 1, max= 35, avg=12.64, stdev= 5.63, samples=233 lat (usec) : 50=0.13%, 100=1.20%, 250=0.26%, 500=0.07%, 750=0.03% lat (msec) : 2=6.35%, 4=4.52%, 10=7.03%, 20=11.59%, 50=41.28% lat (msec) : 100=22.98%, 250=4.36%, 500=0.16%, 750=0.03% cpu : usr=0.09%, sys=5.41%, ctx=6549, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180833: Fri Sep 4 04:58:13 2026 read: IOPS=12, BW=51.8KiB/s (53.0kB/s)(6028KiB/116374msec) clat (usec): min=35, max=565705, avg=42974.97, stdev=31671.99 lat (usec): min=35, max=565706, avg=42978.36, stdev=31673.26 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 10945], 10.00th=[ 16188], 20.00th=[ 22152], | 30.00th=[ 26870], 40.00th=[ 31327], 50.00th=[ 36439], 60.00th=[ 41681], | 70.00th=[ 49546], 80.00th=[ 59507], 90.00th=[ 76022], 95.00th=[ 96994], | 99.00th=[143655], 99.50th=[179307], 99.90th=[287310], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 7, max= 111, per=25.53%, avg=51.31, stdev=20.86, samples=230 iops : min= 1, max= 27, avg=12.17, stdev= 5.26, samples=230 write: IOPS=13, BW=53.8KiB/s (55.1kB/s)(6260KiB/116374msec); 0 zone resets clat (usec): min=1010, max=264849, avg=32691.89, stdev=34702.45 lat (usec): min=1011, max=264850, avg=32694.99, stdev=34701.22 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1303], 10.00th=[ 1745], 20.00th=[ 3720], | 30.00th=[ 7242], 40.00th=[ 14746], 50.00th=[ 22938], 60.00th=[ 31327], | 70.00th=[ 41157], 80.00th=[ 54789], 90.00th=[ 79168], 95.00th=[103285], | 99.00th=[152044], 99.50th=[177210], 99.90th=[252707], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 127, per=25.37%, avg=53.52, stdev=22.15, samples=229 iops : min= 1, max= 31, avg=12.72, stdev= 5.58, samples=229 lat (usec) : 50=0.16%, 100=1.40%, 250=0.20%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.02%, 4=4.69%, 10=7.32%, 20=11.17%, 50=43.00% lat (msec) : 100=21.13%, 250=4.65%, 500=0.10%, 750=0.03% cpu : usr=0.09%, sys=5.45%, ctx=6595, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180834: Fri Sep 4 04:58:13 2026 read: IOPS=12, BW=50.9KiB/s (52.2kB/s)(6052KiB/118832msec) clat (usec): min=43, max=612677, avg=43692.27, stdev=32784.28 lat (usec): min=44, max=612678, avg=43697.07, stdev=32786.88 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 9634], 10.00th=[ 16319], 20.00th=[ 22152], | 30.00th=[ 27132], 40.00th=[ 32375], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 50594], 80.00th=[ 61080], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[160433], 99.50th=[202376], 99.90th=[244319], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 7, max= 111, per=25.18%, avg=50.62, stdev=20.02, samples=234 iops : min= 1, max= 27, avg=11.99, stdev= 5.06, samples=234 write: IOPS=13, BW=52.5KiB/s (53.7kB/s)(6236KiB/118832msec); 0 zone resets clat (usec): min=972, max=262259, avg=33525.62, stdev=35138.16 lat (usec): min=973, max=262261, avg=33528.34, stdev=35137.91 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1303], 10.00th=[ 2008], 20.00th=[ 3654], | 30.00th=[ 6718], 40.00th=[ 13960], 50.00th=[ 23462], 60.00th=[ 32113], | 70.00th=[ 43254], 80.00th=[ 58459], 90.00th=[ 81265], 95.00th=[104334], | 99.00th=[145753], 99.50th=[173016], 99.90th=[246416], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 7, max= 112, per=24.61%, avg=51.92, stdev=20.89, samples=235 iops : min= 1, max= 28, avg=12.32, stdev= 5.25, samples=235 lat (usec) : 50=0.23%, 100=1.66%, 250=0.26%, 750=0.03%, 1000=0.10% lat (msec) : 2=4.98%, 4=5.76%, 10=7.36%, 20=10.45%, 50=41.80% lat (msec) : 100=22.79%, 250=4.52%, 500=0.03%, 750=0.03% cpu : usr=0.10%, sys=5.51%, ctx=6699, 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=202KiB/s (207kB/s), 50.1KiB/s-51.8KiB/s (51.3kB/s-53.0kB/s), io=23.4MiB (24.6MB), run=116374-119004msec WRITE: bw=211KiB/s (216kB/s), 52.5KiB/s-53.8KiB/s (53.7kB/s-55.1kB/s), io=24.6MiB (25.7MB), run=116374-119004msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180836: Fri Sep 4 04:58:58 2026 read: IOPS=9, BW=36.7KiB/s (37.6kB/s)(5992KiB/163206msec) clat (msec): min=5, max=577, avg=42.96, stdev=40.01 lat (msec): min=5, max=577, avg=42.96, stdev=40.01 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 59], 90.00th=[ 93], 95.00th=[ 124], | 99.00th=[ 184], 99.50th=[ 209], 99.90th=[ 338], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 7, max= 152, per=25.31%, avg=36.96, stdev=23.74, samples=316 iops : min= 1, max= 38, avg= 8.58, stdev= 5.96, samples=316 write: IOPS=9, BW=38.6KiB/s (39.5kB/s)(6296KiB/163206msec); 0 zone resets clat (msec): min=9, max=382, avg=62.56, stdev=40.98 lat (msec): min=9, max=382, avg=62.57, stdev=40.98 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 50], 60.00th=[ 58], | 70.00th=[ 73], 80.00th=[ 90], 90.00th=[ 118], 95.00th=[ 144], | 99.00th=[ 203], 99.50th=[ 236], 99.90th=[ 305], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 7, max= 104, per=24.96%, avg=38.19, stdev=21.15, samples=321 iops : min= 1, max= 26, avg= 8.88, stdev= 5.30, samples=321 lat (msec) : 10=1.86%, 20=13.25%, 50=47.17%, 100=25.26%, 250=12.14% lat (msec) : 500=0.29%, 750=0.03% cpu : usr=0.07%, sys=1.90%, ctx=4882, 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=180837: Fri Sep 4 04:58:58 2026 read: IOPS=9, BW=36.3KiB/s (37.1kB/s)(5940KiB/163814msec) clat (msec): min=5, max=611, avg=42.22, stdev=39.00 lat (msec): min=5, max=611, avg=42.22, stdev=39.00 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 62], 90.00th=[ 90], 95.00th=[ 123], | 99.00th=[ 169], 99.50th=[ 209], 99.90th=[ 292], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 7, max= 136, per=25.03%, avg=36.54, stdev=23.94, samples=316 iops : min= 1, max= 34, avg= 8.47, stdev= 6.01, samples=316 write: IOPS=9, BW=38.8KiB/s (39.7kB/s)(6348KiB/163814msec); 0 zone resets clat (msec): min=12, max=408, avg=63.53, stdev=43.91 lat (msec): min=12, max=408, avg=63.54, stdev=43.92 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 59], | 70.00th=[ 72], 80.00th=[ 90], 90.00th=[ 122], 95.00th=[ 150], | 99.00th=[ 220], 99.50th=[ 255], 99.90th=[ 330], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 7, max= 127, per=25.08%, avg=38.37, stdev=21.83, samples=322 iops : min= 1, max= 31, avg= 8.93, stdev= 5.48, samples=322 lat (msec) : 10=2.31%, 20=14.06%, 50=44.79%, 100=26.63%, 250=11.82% lat (msec) : 500=0.36%, 750=0.03% cpu : usr=0.06%, sys=1.79%, ctx=4864, 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=180838: Fri Sep 4 04:58:58 2026 read: IOPS=9, BW=37.0KiB/s (37.9kB/s)(6028KiB/162865msec) clat (msec): min=6, max=251, avg=42.79, stdev=35.97 lat (msec): min=6, max=251, avg=42.79, stdev=35.97 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 61], 90.00th=[ 92], 95.00th=[ 117], | 99.00th=[ 180], 99.50th=[ 209], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 7, max= 119, per=25.36%, avg=37.03, stdev=22.04, samples=317 iops : min= 1, max= 29, avg= 8.59, stdev= 5.54, samples=317 write: IOPS=9, BW=38.4KiB/s (39.4kB/s)(6260KiB/162865msec); 0 zone resets clat (msec): min=11, max=604, avg=62.66, stdev=44.19 lat (msec): min=11, max=604, avg=62.66, stdev=44.20 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 49], 60.00th=[ 59], | 70.00th=[ 71], 80.00th=[ 90], 90.00th=[ 117], 95.00th=[ 142], | 99.00th=[ 211], 99.50th=[ 262], 99.90th=[ 426], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 7, max= 119, per=24.80%, avg=37.95, stdev=21.12, samples=321 iops : min= 1, max= 29, avg= 8.82, stdev= 5.30, samples=321 lat (msec) : 10=1.50%, 20=12.27%, 50=48.37%, 100=25.68%, 250=11.78% lat (msec) : 500=0.36%, 750=0.03% cpu : usr=0.06%, sys=1.89%, ctx=4865, 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=180839: Fri Sep 4 04:58:58 2026 read: IOPS=9, BW=37.1KiB/s (38.0kB/s)(6052KiB/163040msec) clat (msec): min=4, max=350, avg=43.70, stdev=38.18 lat (msec): min=4, max=350, avg=43.70, stdev=38.19 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 63], 90.00th=[ 95], 95.00th=[ 122], | 99.00th=[ 180], 99.50th=[ 220], 99.90th=[ 309], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 7, max= 143, per=26.00%, avg=37.96, stdev=22.52, samples=310 iops : min= 1, max= 35, avg= 8.83, stdev= 5.66, samples=310 write: IOPS=9, BW=38.2KiB/s (39.2kB/s)(6236KiB/163040msec); 0 zone resets clat (msec): min=11, max=582, avg=61.93, stdev=43.45 lat (msec): min=11, max=582, avg=61.93, stdev=43.46 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 50], 60.00th=[ 61], | 70.00th=[ 73], 80.00th=[ 86], 90.00th=[ 110], 95.00th=[ 138], | 99.00th=[ 218], 99.50th=[ 279], 99.90th=[ 430], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 7, max= 103, per=24.79%, avg=37.92, stdev=21.05, samples=319 iops : min= 1, max= 25, avg= 8.82, stdev= 5.28, samples=319 lat (msec) : 10=1.89%, 20=13.35%, 50=46.55%, 100=27.34%, 250=10.42% lat (msec) : 500=0.42%, 750=0.03% cpu : usr=0.07%, sys=1.90%, ctx=4987, 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=147KiB/s (150kB/s), 36.3KiB/s-37.1KiB/s (37.1kB/s-38.0kB/s), io=23.4MiB (24.6MB), run=162865-163814msec WRITE: bw=153KiB/s (157kB/s), 38.2KiB/s-38.8KiB/s (39.2kB/s-39.7kB/s), io=24.6MiB (25.7MB), run=162865-163814msec 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=180878: Fri Sep 4 04:59:43 2026 read: IOPS=11, BW=182KiB/s (187kB/s)(5920KiB/32455msec) clat (usec): min=41, max=194995, avg=44931.58, stdev=28233.78 lat (usec): min=41, max=194996, avg=44932.89, stdev=28233.83 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 86], 10.00th=[ 17433], 20.00th=[ 24511], | 30.00th=[ 29754], 40.00th=[ 35914], 50.00th=[ 40633], 60.00th=[ 46924], | 70.00th=[ 52167], 80.00th=[ 61080], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[141558], 99.50th=[170918], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 63, max= 383, per=25.84%, avg=181.92, stdev=73.81, samples=64 iops : min= 3, max= 23, avg=10.61, stdev= 4.66, samples=64 write: IOPS=12, BW=196KiB/s (201kB/s)(6368KiB/32455msec); 0 zone resets clat (usec): min=1781, max=272397, avg=39210.34, stdev=39112.75 lat (usec): min=1781, max=272400, avg=39228.29, stdev=39120.32 clat percentiles (usec): | 1.00th=[ 1975], 5.00th=[ 3097], 10.00th=[ 5080], 20.00th=[ 7963], | 30.00th=[ 12387], 40.00th=[ 18744], 50.00th=[ 27395], 60.00th=[ 35914], | 70.00th=[ 50070], 80.00th=[ 64750], 90.00th=[ 89654], 95.00th=[116917], | 99.00th=[185598], 99.50th=[258999], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 62, max= 378, per=26.46%, avg=195.83, stdev=79.69, samples=64 iops : min= 3, max= 23, avg=11.50, stdev= 5.02, samples=64 lat (usec) : 50=0.39%, 100=2.47%, 250=0.39%, 1000=0.13% lat (msec) : 2=0.52%, 4=3.26%, 10=8.72%, 20=11.85%, 50=40.23% lat (msec) : 100=26.04%, 250=5.73%, 500=0.26% cpu : usr=0.09%, sys=6.01%, ctx=1812, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180879: Fri Sep 4 04:59:43 2026 read: IOPS=10, BW=174KiB/s (178kB/s)(5744KiB/33034msec) clat (usec): min=47, max=295442, avg=48825.83, stdev=35305.71 lat (usec): min=47, max=295442, avg=48828.46, stdev=35304.56 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 93], 10.00th=[ 16057], 20.00th=[ 25035], | 30.00th=[ 31327], 40.00th=[ 36439], 50.00th=[ 42730], 60.00th=[ 48497], | 70.00th=[ 56361], 80.00th=[ 66847], 90.00th=[ 86508], 95.00th=[107480], | 99.00th=[166724], 99.50th=[244319], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 29, max= 351, per=24.90%, avg=175.33, stdev=69.71, samples=64 iops : min= 1, max= 21, avg=10.19, stdev= 4.38, samples=64 write: IOPS=12, BW=198KiB/s (203kB/s)(6544KiB/33034msec); 0 zone resets clat (usec): min=1570, max=162044, avg=37143.63, stdev=34572.86 lat (usec): min=1570, max=162045, avg=37175.14, stdev=34556.59 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 1958], 10.00th=[ 3294], 20.00th=[ 6980], | 30.00th=[ 11207], 40.00th=[ 19530], 50.00th=[ 27395], 60.00th=[ 35914], | 70.00th=[ 46400], 80.00th=[ 62653], 90.00th=[ 87557], 95.00th=[110625], | 99.00th=[139461], 99.50th=[147850], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 31, max= 507, per=26.75%, avg=197.92, stdev=86.52, samples=65 iops : min= 1, max= 31, avg=11.62, stdev= 5.45, samples=65 lat (usec) : 50=0.13%, 100=2.34%, 250=0.65% lat (msec) : 2=2.99%, 4=3.65%, 10=8.46%, 20=9.24%, 50=40.10% lat (msec) : 100=25.39%, 250=6.90%, 500=0.13% cpu : usr=0.07%, sys=6.03%, ctx=1784, 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=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=180880: Fri Sep 4 04:59:43 2026 read: IOPS=11, BW=184KiB/s (188kB/s)(6256KiB/34019msec) clat (usec): min=46, max=217275, avg=49863.02, stdev=32035.17 lat (usec): min=46, max=217276, avg=49867.47, stdev=32035.09 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 93], 10.00th=[ 17433], 20.00th=[ 25560], | 30.00th=[ 31851], 40.00th=[ 38011], 50.00th=[ 45876], 60.00th=[ 51643], | 70.00th=[ 62129], 80.00th=[ 69731], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[168821], 99.50th=[206570], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 31, max= 382, per=26.16%, avg=184.15, stdev=63.01, samples=67 iops : min= 1, max= 23, avg=10.76, stdev= 3.97, samples=67 write: IOPS=11, BW=177KiB/s (182kB/s)(6032KiB/34019msec); 0 zone resets clat (usec): min=1274, max=198284, avg=38234.85, stdev=34160.96 lat (usec): min=1275, max=198288, avg=38237.61, stdev=34160.73 clat percentiles (usec): | 1.00th=[ 1909], 5.00th=[ 3228], 10.00th=[ 4883], 20.00th=[ 8455], | 30.00th=[ 13698], 40.00th=[ 21890], 50.00th=[ 29230], 60.00th=[ 37487], | 70.00th=[ 47973], 80.00th=[ 60031], 90.00th=[ 86508], 95.00th=[109577], | 99.00th=[141558], 99.50th=[185598], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 31, max= 376, per=23.72%, avg=175.51, stdev=71.16, samples=67 iops : min= 1, max= 23, avg=10.21, stdev= 4.54, samples=67 lat (usec) : 50=0.26%, 100=2.34%, 250=0.39%, 500=0.39% lat (msec) : 2=0.91%, 4=2.47%, 10=8.85%, 20=8.85%, 50=39.32% lat (msec) : 100=29.30%, 250=6.90% cpu : usr=0.07%, sys=6.03%, ctx=1909, 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=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=180881: Fri Sep 4 04:59:43 2026 read: IOPS=11, BW=189KiB/s (193kB/s)(6032KiB/31968msec) clat (usec): min=57, max=249900, avg=45607.84, stdev=32624.09 lat (usec): min=59, max=249901, avg=45609.21, stdev=32624.08 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 73], 10.00th=[ 4015], 20.00th=[ 21890], | 30.00th=[ 29492], 40.00th=[ 34341], 50.00th=[ 40109], 60.00th=[ 48497], | 70.00th=[ 55837], 80.00th=[ 65799], 90.00th=[ 81265], 95.00th=[102237], | 99.00th=[158335], 99.50th=[204473], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 31, max= 377, per=26.55%, avg=186.89, stdev=80.30, samples=63 iops : min= 1, max= 23, avg=10.92, stdev= 5.06, samples=63 write: IOPS=12, BW=196KiB/s (200kB/s)(6256KiB/31968msec); 0 zone resets clat (usec): min=1632, max=173636, avg=37127.06, stdev=36758.38 lat (usec): min=1634, max=173639, avg=37132.74, stdev=36756.98 clat percentiles (usec): | 1.00th=[ 1729], 5.00th=[ 2507], 10.00th=[ 3654], 20.00th=[ 6652], | 30.00th=[ 10028], 40.00th=[ 15533], 50.00th=[ 23200], 60.00th=[ 33817], | 70.00th=[ 47973], 80.00th=[ 65274], 90.00th=[ 90702], 95.00th=[116917], | 99.00th=[154141], 99.50th=[164627], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 61, max= 381, per=26.47%, avg=195.90, stdev=73.77, samples=63 iops : min= 3, max= 23, avg=11.49, stdev= 4.63, samples=63 lat (usec) : 100=3.78%, 250=0.39%, 750=0.26%, 1000=0.13% lat (msec) : 2=2.08%, 4=4.04%, 10=9.51%, 20=11.46%, 50=35.29% lat (msec) : 100=26.56%, 250=6.51% cpu : usr=0.09%, sys=6.11%, ctx=1778, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=704KiB/s (721kB/s), 174KiB/s-189KiB/s (178kB/s-193kB/s), io=23.4MiB (24.5MB), run=31968-34019msec WRITE: bw=741KiB/s (759kB/s), 177KiB/s-198KiB/s (182kB/s-203kB/s), io=24.6MiB (25.8MB), run=31968-34019msec fio: pid=180883, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=180883: Fri Sep 4 04:59:55 2026 read: IOPS=7, BW=112KiB/s (115kB/s)(4400KiB/39344msec) clat (msec): min=10, max=307, avg=56.68, stdev=41.43 lat (msec): min=10, max=307, avg=56.68, stdev=41.43 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 38], 50.00th=[ 45], 60.00th=[ 50], | 70.00th=[ 63], 80.00th=[ 78], 90.00th=[ 113], 95.00th=[ 138], | 99.00th=[ 241], 99.50th=[ 243], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 31, max= 254, per=23.71%, avg=114.76, stdev=49.99, samples=74 iops : min= 1, max= 15, avg= 6.39, stdev= 3.16, samples=74 write: IOPS=7, BW=119KiB/s (122kB/s)(4688KiB/39344msec); 0 zone resets clat (msec): min=18, max=310, avg=80.13, stdev=45.43 lat (msec): min=18, max=310, avg=80.13, stdev=45.43 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 30], 10.00th=[ 35], 20.00th=[ 43], | 30.00th=[ 49], 40.00th=[ 58], 50.00th=[ 68], 60.00th=[ 81], | 70.00th=[ 96], 80.00th=[ 117], 90.00th=[ 146], 95.00th=[ 171], | 99.00th=[ 213], 99.50th=[ 243], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 27, max= 253, per=23.66%, avg=120.21, stdev=50.84, samples=76 iops : min= 1, max= 15, avg= 6.74, stdev= 3.21, samples=76 lat (msec) : 20=3.34%, 50=42.53%, 100=33.92%, 250=19.68%, 500=0.35% cpu : usr=0.05%, sys=1.85%, ctx=840, 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=276,293,0,0 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=180884: Fri Sep 4 04:59:55 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(5744KiB/45939msec) clat (msec): min=7, max=264, avg=49.77, stdev=36.77 lat (msec): min=7, max=264, avg=49.78, stdev=36.77 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 17], 20.00th=[ 23], | 30.00th=[ 29], 40.00th=[ 34], 50.00th=[ 41], 60.00th=[ 46], | 70.00th=[ 55], 80.00th=[ 69], 90.00th=[ 97], 95.00th=[ 132], | 99.00th=[ 178], 99.50th=[ 222], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 345, per=26.58%, avg=128.67, stdev=71.50, samples=87 iops : min= 1, max= 21, avg= 7.26, stdev= 4.51, samples=87 write: IOPS=8, BW=142KiB/s (146kB/s)(6544KiB/45939msec); 0 zone resets clat (msec): min=15, max=303, avg=68.37, stdev=44.81 lat (msec): min=15, max=303, avg=68.38, stdev=44.81 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 35], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 64], | 70.00th=[ 80], 80.00th=[ 102], 90.00th=[ 130], 95.00th=[ 155], | 99.00th=[ 213], 99.50th=[ 251], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 380, per=27.84%, avg=141.44, stdev=74.03, samples=90 iops : min= 1, max= 23, avg= 8.07, stdev= 4.66, samples=90 lat (msec) : 10=0.91%, 20=7.03%, 50=47.14%, 100=29.30%, 250=15.23% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=2.01%, ctx=1309, 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=180885: Fri Sep 4 04:59:55 2026 read: IOPS=8, BW=139KiB/s (142kB/s)(6256KiB/44976msec) clat (msec): min=7, max=224, avg=48.33, stdev=38.06 lat (msec): min=7, max=224, avg=48.33, stdev=38.06 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 23], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 44], | 70.00th=[ 52], 80.00th=[ 64], 90.00th=[ 96], 95.00th=[ 132], | 99.00th=[ 213], 99.50th=[ 222], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 29, max= 415, per=29.87%, avg=144.55, stdev=85.41, samples=85 iops : min= 1, max= 25, avg= 8.26, stdev= 5.33, samples=85 write: IOPS=8, BW=134KiB/s (137kB/s)(6032KiB/44976msec); 0 zone resets clat (msec): min=12, max=384, avg=68.40, stdev=45.73 lat (msec): min=12, max=384, avg=68.41, stdev=45.73 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 23], 10.00th=[ 29], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 64], | 70.00th=[ 78], 80.00th=[ 102], 90.00th=[ 129], 95.00th=[ 159], | 99.00th=[ 226], 99.50th=[ 271], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 31, max= 351, per=26.57%, avg=134.97, stdev=61.69, samples=86 iops : min= 1, max= 21, avg= 7.66, stdev= 3.90, samples=86 lat (msec) : 10=0.26%, 20=8.98%, 50=48.31%, 100=27.60%, 250=14.58% lat (msec) : 500=0.26% cpu : usr=0.08%, sys=1.92%, ctx=1291, 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=180886: Fri Sep 4 04:59:55 2026 read: IOPS=8, BW=130KiB/s (133kB/s)(6032KiB/46296msec) clat (msec): min=7, max=289, avg=50.10, stdev=41.83 lat (msec): min=7, max=289, avg=50.10, stdev=41.83 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 43], | 70.00th=[ 51], 80.00th=[ 74], 90.00th=[ 111], 95.00th=[ 146], | 99.00th=[ 205], 99.50th=[ 234], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 29, max= 351, per=26.85%, avg=129.97, stdev=73.19, samples=90 iops : min= 1, max= 21, avg= 7.34, stdev= 4.57, samples=90 write: IOPS=8, BW=135KiB/s (138kB/s)(6256KiB/46296msec); 0 zone resets clat (msec): min=13, max=356, avg=69.43, stdev=48.16 lat (msec): min=13, max=356, avg=69.44, stdev=48.16 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 55], 60.00th=[ 64], | 70.00th=[ 74], 80.00th=[ 95], 90.00th=[ 129], 95.00th=[ 163], | 99.00th=[ 253], 99.50th=[ 288], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 31, max= 352, per=26.75%, avg=135.90, stdev=72.43, samples=90 iops : min= 1, max= 22, avg= 7.71, stdev= 4.56, samples=90 lat (msec) : 10=0.65%, 20=8.85%, 50=46.74%, 100=28.13%, 250=14.71% lat (msec) : 500=0.91% cpu : usr=0.05%, sys=1.89%, ctx=1253, 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=485KiB/s (496kB/s), 112KiB/s-139KiB/s (115kB/s-142kB/s), io=21.9MiB (22.0MB), run=39344-46296msec WRITE: bw=508KiB/s (520kB/s), 119KiB/s-142KiB/s (122kB/s-146kB/s), io=22.0MiB (24.1MB), run=39344-46296msec 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=180900: Fri Sep 4 05:00:11 2026 read: IOPS=1, BW=1892KiB/s (1938kB/s)(7168KiB/3788msec) clat (usec): min=688, max=388274, avg=238655.88, stdev=130810.80 lat (usec): min=689, max=388276, avg=238657.79, stdev=130810.84 clat percentiles (usec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[183501], | 30.00th=[185598], 40.00th=[185598], 50.00th=[252707], 60.00th=[316670], | 70.00th=[316670], 80.00th=[346031], 90.00th=[387974], 95.00th=[387974], | 99.00th=[387974], 99.50th=[387974], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 1565, max= 4007, per=60.81%, avg=2319.80, stdev=963.10, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1352KiB/s (1384kB/s)(5120KiB/3788msec); 0 zone resets clat (msec): min=249, max=676, avg=395.02, stdev=170.19 lat (msec): min=249, max=679, avg=395.78, stdev=171.51 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 422], 80.00th=[ 422], 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= 2003, max= 3908, per=49.46%, avg=2642.00, stdev=1096.40, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=58.33%, 750=8.33% cpu : usr=0.03%, sys=13.78%, ctx=244, 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=180901: Fri Sep 4 05:00:11 2026 read: IOPS=0, BW=382KiB/s (391kB/s)(2048KiB/5367msec) clat (msec): min=217, max=275, avg=246.80, stdev=41.06 lat (msec): min=217, max=275, avg=246.81, stdev=41.04 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 218], 50.00th=[ 218], 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= 1667, max= 1957, per=47.50%, avg=1812.00, stdev=205.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1908KiB/s (1954kB/s)(10.0MiB/5367msec); 0 zone resets clat (msec): min=242, max=1032, avg=475.06, stdev=292.69 lat (msec): min=242, max=1032, avg=475.21, stdev=292.76 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 255], | 30.00th=[ 257], 40.00th=[ 292], 50.00th=[ 300], 60.00th=[ 334], | 70.00th=[ 531], 80.00th=[ 567], 90.00th=[ 936], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 1954, max= 4079, per=56.86%, avg=3037.50, stdev=1126.74, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=16.67%, 500=50.00%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.06%, sys=14.44%, ctx=210, 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=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=180904: Fri Sep 4 05:00:11 2026 read: IOPS=1, BW=1649KiB/s (1688kB/s)(6144KiB/3727msec) clat (usec): min=1197, max=318102, avg=134281.44, stdev=145306.34 lat (usec): min=1198, max=318104, avg=134282.73, stdev=145306.55 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1205], 10.00th=[ 1205], 20.00th=[ 1975], | 30.00th=[ 1975], 40.00th=[ 24511], 50.00th=[ 24511], 60.00th=[175113], | 70.00th=[287310], 80.00th=[287310], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 3915, max= 4063, per=100.00%, avg=4003.00, stdev=77.87, samples=3 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=3 write: IOPS=1, BW=1649KiB/s (1688kB/s)(6144KiB/3727msec); 0 zone resets clat (msec): min=260, max=830, avg=478.44, stdev=205.81 lat (msec): min=261, max=830, avg=478.53, stdev=205.79 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 409], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 1572, max= 2039, per=36.00%, avg=1923.33, stdev=175.29, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 2=16.67%, 50=8.33%, 250=8.33%, 500=50.00%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=13.71%, ctx=231, 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=180906: Fri Sep 4 05:00:11 2026 read: IOPS=1, BW=1261KiB/s (1292kB/s)(5120KiB/4059msec) clat (usec): min=573, max=727024, avg=269193.85, stdev=273590.11 lat (usec): min=575, max=727025, avg=269195.67, stdev=273590.00 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[ 578], | 30.00th=[152044], 40.00th=[152044], 50.00th=[208667], 60.00th=[208667], | 70.00th=[256902], 80.00th=[256902], 90.00th=[725615], 95.00th=[725615], | 99.00th=[725615], 99.50th=[725615], 99.90th=[725615], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 1954, max= 4031, per=70.04%, avg=2672.00, stdev=1177.56, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1766KiB/s (1808kB/s)(7168KiB/4059msec); 0 zone resets clat (msec): min=209, max=779, avg=369.52, stdev=199.34 lat (msec): min=210, max=781, avg=370.41, stdev=199.89 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 243], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 305], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 472], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1950, max= 4079, per=46.88%, avg=2504.25, stdev=1050.47, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=14.19%, ctx=215, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3816KiB/s (3907kB/s), 382KiB/s-1892KiB/s (391kB/s-1938kB/s), io=20.0MiB (20.0MB), run=3727-5367msec WRITE: bw=5342KiB/s (5470kB/s), 1352KiB/s-1908KiB/s (1384kB/s-1954kB/s), io=28.0MiB (29.4MB), run=3727-5367msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180902: Fri Sep 4 05:00:11 2026 read: IOPS=1, BW=1362KiB/s (1395kB/s)(7168KiB/5262msec) clat (msec): min=99, max=1178, avg=364.32, stdev=389.19 lat (msec): min=99, max=1178, avg=364.32, stdev=389.19 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 102], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 199], 60.00th=[ 266], | 70.00th=[ 266], 80.00th=[ 542], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 1917, max= 4071, per=82.32%, avg=3019.50, stdev=1205.91, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=973KiB/s (996kB/s)(5120KiB/5262msec); 0 zone resets clat (msec): min=137, max=780, avg=461.84, stdev=229.95 lat (msec): min=137, max=781, avg=461.95, stdev=229.95 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 464], 60.00th=[ 464], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1917, max= 3946, per=51.30%, avg=2634.00, stdev=1137.86, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.06%, sys=4.14%, ctx=115, 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=180903: Fri Sep 4 05:00:11 2026 read: IOPS=0, BW=367KiB/s (376kB/s)(2048KiB/5583msec) clat (msec): min=459, max=875, avg=667.41, stdev=294.54 lat (msec): min=459, max=875, avg=667.42, stdev=294.55 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 460], 10.00th=[ 460], 20.00th=[ 460], | 30.00th=[ 460], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 877], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 1973, max= 2035, per=54.63%, avg=2004.00, stdev=43.84, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1834KiB/s (1878kB/s)(10.0MiB/5583msec); 0 zone resets clat (msec): min=158, max=1322, avg=416.60, stdev=338.45 lat (msec): min=158, max=1327, avg=417.25, stdev=339.99 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 188], | 30.00th=[ 207], 40.00th=[ 275], 50.00th=[ 334], 60.00th=[ 359], | 70.00th=[ 368], 80.00th=[ 422], 90.00th=[ 542], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 1917, max= 4087, per=52.45%, avg=2693.33, stdev=1068.15, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=5.23%, ctx=128, 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=180905: Fri Sep 4 05:00:11 2026 read: IOPS=1, BW=1212KiB/s (1241kB/s)(6144KiB/5071msec) clat (msec): min=114, max=740, avg=327.93, stdev=226.98 lat (msec): min=114, max=740, avg=327.93, stdev=226.98 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 334], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1917, max= 4079, per=68.13%, avg=2499.00, stdev=1054.29, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1212KiB/s (1241kB/s)(6144KiB/5071msec); 0 zone resets clat (msec): min=127, max=999, avg=440.34, stdev=308.20 lat (msec): min=127, max=999, avg=440.47, stdev=308.18 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 422], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 1917, max= 4071, per=46.83%, avg=2404.60, stdev=932.75, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=4.06%, 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=180907: Fri Sep 4 05:00:11 2026 read: IOPS=0, BW=943KiB/s (965kB/s)(5120KiB/5432msec) clat (msec): min=76, max=748, avg=315.60, stdev=268.37 lat (msec): min=76, max=748, avg=315.61, stdev=268.37 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 78], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 228], 60.00th=[ 228], | 70.00th=[ 384], 80.00th=[ 384], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 3835, max= 3946, per=100.00%, avg=3890.50, stdev=78.49, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1320KiB/s (1351kB/s)(7168KiB/5432msec); 0 zone resets clat (msec): min=98, max=1019, avg=488.11, stdev=371.56 lat (msec): min=98, max=1019, avg=488.20, stdev=371.57 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 140], | 30.00th=[ 251], 40.00th=[ 251], 50.00th=[ 443], 60.00th=[ 518], | 70.00th=[ 518], 80.00th=[ 953], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 1917, max= 4055, per=47.07%, avg=2417.00, stdev=917.17, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=25.00%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=3.00%, ctx=69, 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=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=3668KiB/s (3756kB/s), 367KiB/s-1362KiB/s (376kB/s-1395kB/s), io=20.0MiB (20.0MB), run=5071-5583msec WRITE: bw=5136KiB/s (5259kB/s), 973KiB/s-1834KiB/s (996kB/s-1878kB/s), io=28.0MiB (29.4MB), run=5071-5583msec 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=180918: Fri Sep 4 05:00:27 2026 read: IOPS=1, BW=4813KiB/s (4929kB/s)(12.0MiB/2553msec) clat (msec): min=733, max=870, avg=795.77, stdev=69.67 lat (msec): min=733, max=870, avg=795.77, stdev=69.67 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 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= 8094, max= 8159, per=100.00%, avg=8126.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=13.56%, ctx=337, 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=180919: Fri Sep 4 05:00:27 2026 read: IOPS=0, BW=1424KiB/s (1458kB/s)(4096KiB/2876msec) clat (nsec): min=885308k, max=885308k, avg=885307998.00, stdev= 0.00 lat (nsec): min=885312k, max=885312k, avg=885311664.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 885], 5.00th=[ 885], 10.00th=[ 885], 20.00th=[ 885], | 30.00th=[ 885], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2848KiB/s (2917kB/s)(8192KiB/2876msec); 0 zone resets clat (msec): min=441, max=1490, avg=966.31, stdev=741.57 lat (msec): min=442, max=1490, avg=966.62, stdev=741.50 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 1485], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8094, max= 8094, per=79.37%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.60%, ctx=168, 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=180920: Fri Sep 4 05:00:27 2026 write: IOPS=0, BW=3824KiB/s (3916kB/s)(12.0MiB/3213msec); 0 zone resets clat (msec): min=554, max=1347, avg=1015.69, stdev=412.16 lat (msec): min=554, max=1347, avg=1016.24, stdev=412.14 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8094, max= 8159, per=79.69%, avg=8126.50, stdev=45.96, 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=3.52%, ctx=91, 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=180921: Fri Sep 4 05:00:27 2026 write: IOPS=1, BW=4699KiB/s (4812kB/s)(12.0MiB/2615msec); 0 zone resets clat (msec): min=284, max=1285, avg=818.59, stdev=503.92 lat (msec): min=284, max=1285, avg=819.04, stdev=503.81 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 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= 8159, max= 8159, per=80.01%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.59%, ctx=57, 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=5697KiB/s (5834kB/s), 1424KiB/s-4813KiB/s (1458kB/s-4929kB/s), io=16.0MiB (16.8MB), run=2553-2876msec WRITE: bw=9.96MiB/s (10.4MB/s), 2848KiB/s-4699KiB/s (2917kB/s-4812kB/s), io=32.0MiB (33.6MB), run=2615-3213msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180913: Fri Sep 4 05:00:27 2026 read: IOPS=1, BW=6417KiB/s (6571kB/s)(12.0MiB/1915msec) clat (msec): min=392, max=948, avg=598.24, stdev=304.84 lat (msec): min=392, max=948, avg=598.24, stdev=304.84 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 456], | 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= 6759, max= 7984, per=100.00%, avg=7371.50, stdev=866.21, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=6.22%, ctx=69, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180914: Fri Sep 4 05:00:27 2026 read: IOPS=0, BW=1199KiB/s (1227kB/s)(4096KiB/3417msec) clat (nsec): min=172918k, max=172918k, avg=172917607.00, stdev= 0.00 lat (nsec): min=172920k, max=172920k, avg=172920243.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 174], | 70.00th=[ 174], 80.00th=[ 174], 90.00th=[ 174], 95.00th=[ 174], | 99.00th=[ 174], 99.50th=[ 174], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 5936, max= 5936, per=100.00%, avg=5936.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2397KiB/s (2455kB/s)(8192KiB/3417msec); 0 zone resets clat (msec): min=911, max=2278, avg=1595.17, stdev=966.99 lat (msec): min=914, max=2279, avg=1596.87, stdev=965.09 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 2265], | 70.00th=[ 2265], 80.00th=[ 2265], 90.00th=[ 2265], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 8126, max= 8126, per=92.80%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=5.21%, ctx=69, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180915: Fri Sep 4 05:00:27 2026 write: IOPS=0, BW=3284KiB/s (3363kB/s)(12.0MiB/3742msec); 0 zone resets clat (msec): min=147, max=2018, avg=1201.24, stdev=957.85 lat (msec): min=147, max=2018, avg=1202.08, stdev=957.91 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 1435], 50.00th=[ 1435], 60.00th=[ 1435], | 70.00th=[ 2022], 80.00th=[ 2022], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 8094, max= 8175, per=92.90%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.26%, ctx=43, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180916: Fri Sep 4 05:00:27 2026 write: IOPS=1, BW=5101KiB/s (5223kB/s)(12.0MiB/2409msec); 0 zone resets clat (msec): min=341, max=1369, avg=777.09, stdev=531.69 lat (msec): min=342, max=1370, avg=777.79, stdev=531.41 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 6638, max= 8126, per=84.31%, avg=7382.00, stdev=1052.17, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.11%, ctx=45, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4795KiB/s (4910kB/s), 1199KiB/s-6417KiB/s (1227kB/s-6571kB/s), io=16.0MiB (16.8MB), run=1915-3417msec WRITE: bw=8757KiB/s (8967kB/s), 2397KiB/s-5101KiB/s (2455kB/s-5223kB/s), io=32.0MiB (33.6MB), run=2409-3742msec