== sanity test 398b: DIO and buffer IO race ============== 02:39:53 (1790923193) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.86955 s, 8.6 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=144932: Fri Oct 2 02:42:23 2026 read: IOPS=11, BW=47.0KiB/s (49.1kB/s)(5992KiB/124937msec) clat (usec): min=32, max=274463, avg=41264.93, stdev=31663.94 lat (usec): min=32, max=274464, avg=41268.01, stdev=31665.98 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 58], 10.00th=[ 83], 20.00th=[ 17957], | 30.00th=[ 23725], 40.00th=[ 29754], 50.00th=[ 34866], 60.00th=[ 42730], | 70.00th=[ 51119], 80.00th=[ 62129], 90.00th=[ 82314], 95.00th=[101188], | 99.00th=[135267], 99.50th=[166724], 99.90th=[265290], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 7, max= 95, per=25.88%, avg=47.62, stdev=18.38, samples=245 iops : min= 1, max= 23, avg=11.28, stdev= 4.63, samples=245 write: IOPS=12, BW=50.4KiB/s (51.6kB/s)(6296KiB/124937msec); 0 zone resets clat (usec): min=826, max=524695, avg=39890.90, stdev=44081.35 lat (usec): min=827, max=524697, avg=39893.67, stdev=44082.52 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1172], 10.00th=[ 1352], 20.00th=[ 3752], | 30.00th=[ 7373], 40.00th=[ 16712], 50.00th=[ 26870], 60.00th=[ 39584], | 70.00th=[ 52691], 80.00th=[ 68682], 90.00th=[ 96994], 95.00th=[121111], | 99.00th=[179307], 99.50th=[217056], 99.90th=[325059], 99.95th=[526386], | 99.99th=[526386] bw ( KiB/s): min= 7, max= 118, per=25.93%, avg=50.05, stdev=21.56, samples=245 iops : min= 1, max= 29, avg=11.88, stdev= 5.42, samples=245 lat (usec) : 50=0.81%, 100=4.46%, 250=0.26%, 500=0.16%, 750=0.07% lat (usec) : 1000=0.33% lat (msec) : 2=6.71%, 4=4.00%, 10=6.54%, 20=9.83%, 50=35.16% lat (msec) : 100=24.48%, 250=6.97%, 500=0.20%, 750=0.03% cpu : usr=0.07%, sys=5.06%, ctx=6223, 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=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=144933: Fri Oct 2 02:42:23 2026 read: IOPS=11, BW=46.4KiB/s (47.5kB/s)(5940KiB/128139msec) clat (usec): min=26, max=322574, avg=40715.96, stdev=32232.93 lat (usec): min=27, max=322575, avg=40719.50, stdev=32231.68 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 82], 20.00th=[ 17957], | 30.00th=[ 23462], 40.00th=[ 28181], 50.00th=[ 33817], 60.00th=[ 40633], | 70.00th=[ 50070], 80.00th=[ 61080], 90.00th=[ 81265], 95.00th=[100140], | 99.00th=[147850], 99.50th=[162530], 99.90th=[231736], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 7, max= 110, per=24.96%, avg=45.92, stdev=19.34, samples=252 iops : min= 1, max= 27, avg=10.85, stdev= 4.87, samples=252 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(6348KiB/128139msec); 0 zone resets clat (usec): min=747, max=522424, avg=42436.09, stdev=45081.42 lat (usec): min=749, max=522425, avg=42438.41, stdev=45081.04 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1172], 10.00th=[ 1369], 20.00th=[ 4359], | 30.00th=[ 8717], 40.00th=[ 19530], 50.00th=[ 31327], 60.00th=[ 41681], | 70.00th=[ 55313], 80.00th=[ 73925], 90.00th=[100140], 95.00th=[126354], | 99.00th=[189793], 99.50th=[214959], 99.90th=[341836], 99.95th=[522191], | 99.99th=[522191] bw ( KiB/s): min= 7, max= 126, per=25.44%, avg=49.10, stdev=20.72, samples=251 iops : min= 1, max= 31, avg=11.64, stdev= 5.24, samples=251 lat (usec) : 50=0.78%, 100=4.33%, 250=0.26%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.29% lat (msec) : 2=6.48%, 4=3.35%, 10=6.84%, 20=9.67%, 50=36.04% lat (msec) : 100=24.15%, 250=7.42%, 500=0.10%, 750=0.03% cpu : usr=0.08%, sys=4.98%, ctx=6367, 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=144934: Fri Oct 2 02:42:23 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6028KiB/129022msec) clat (usec): min=33, max=364138, avg=40689.44, stdev=32003.51 lat (usec): min=34, max=364140, avg=40693.70, stdev=32003.03 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 76], 20.00th=[ 17433], | 30.00th=[ 24249], 40.00th=[ 29492], 50.00th=[ 34866], 60.00th=[ 42206], | 70.00th=[ 51119], 80.00th=[ 60031], 90.00th=[ 80217], 95.00th=[ 98042], | 99.00th=[145753], 99.50th=[185598], 99.90th=[223347], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 119, per=25.30%, avg=46.56, stdev=19.92, samples=252 iops : min= 1, max= 29, avg=11.01, stdev= 5.03, samples=252 write: IOPS=12, BW=48.5KiB/s (49.7kB/s)(6260KiB/129022msec); 0 zone resets clat (usec): min=914, max=540987, avg=43018.28, stdev=44530.40 lat (usec): min=915, max=540989, avg=43020.06, stdev=44530.39 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1205], 10.00th=[ 1631], 20.00th=[ 4555], | 30.00th=[ 8979], 40.00th=[ 20841], 50.00th=[ 32375], 60.00th=[ 43779], | 70.00th=[ 55837], 80.00th=[ 73925], 90.00th=[100140], 95.00th=[126354], | 99.00th=[185598], 99.50th=[202376], 99.90th=[304088], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 7, max= 103, per=25.05%, avg=48.35, stdev=19.40, samples=252 iops : min= 1, max= 25, avg=11.46, stdev= 4.89, samples=252 lat (usec) : 50=0.94%, 100=4.82%, 250=0.36%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.03% lat (msec) : 2=6.05%, 4=3.29%, 10=7.10%, 20=8.95%, 50=35.61% lat (msec) : 100=25.20%, 250=7.39%, 500=0.10%, 750=0.03% cpu : usr=0.06%, sys=4.91%, ctx=6342, 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=144936: Fri Oct 2 02:42:23 2026 read: IOPS=11, BW=46.5KiB/s (47.6kB/s)(6052KiB/130177msec) clat (usec): min=19, max=644955, avg=41613.81, stdev=35761.90 lat (usec): min=19, max=644955, avg=41615.21, stdev=35761.85 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 59], 10.00th=[ 153], 20.00th=[ 18744], | 30.00th=[ 23462], 40.00th=[ 28443], 50.00th=[ 33817], 60.00th=[ 41681], | 70.00th=[ 50594], 80.00th=[ 62129], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[156238], 99.50th=[183501], 99.90th=[387974], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 7, max= 119, per=25.06%, avg=46.11, stdev=19.56, samples=254 iops : min= 1, max= 29, avg=10.89, stdev= 4.90, samples=254 write: IOPS=11, BW=47.9KiB/s (49.1kB/s)(6236KiB/130177msec); 0 zone resets clat (usec): min=811, max=517408, avg=42904.04, stdev=43981.43 lat (usec): min=813, max=517410, avg=42905.59, stdev=43981.50 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1369], 20.00th=[ 3884], | 30.00th=[ 9110], 40.00th=[ 20317], 50.00th=[ 32637], 60.00th=[ 43779], | 70.00th=[ 56886], 80.00th=[ 73925], 90.00th=[102237], 95.00th=[122160], | 99.00th=[183501], 99.50th=[208667], 99.90th=[270533], 99.95th=[517997], | 99.99th=[517997] bw ( KiB/s): min= 7, max= 143, per=24.55%, avg=47.39, stdev=20.40, samples=255 iops : min= 1, max= 35, avg=11.21, stdev= 5.13, samples=255 lat (usec) : 20=0.03%, 50=0.65%, 100=3.97%, 250=0.39%, 500=0.07% lat (usec) : 750=0.03%, 1000=0.26% lat (msec) : 2=6.54%, 4=3.58%, 10=5.76%, 20=9.51%, 50=36.04% lat (msec) : 100=25.75%, 250=7.29%, 500=0.07%, 750=0.07% cpu : usr=0.08%, sys=4.92%, ctx=6444, 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=184KiB/s (189kB/s), 46.4KiB/s-47.0KiB/s (47.5kB/s-49.1kB/s), io=23.4MiB (24.6MB), run=124937-130177msec WRITE: bw=193KiB/s (198kB/s), 47.9KiB/s-50.4KiB/s (49.1kB/s-51.6kB/s), io=24.6MiB (25.7MB), run=124937-130177msec fio: pid=144940, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=144937: Fri Oct 2 02:44:33 2026 read: IOPS=5, BW=23.3KiB/s (23.8kB/s)(5992KiB/257294msec) clat (msec): min=4, max=553, avg=33.64, stdev=38.49 lat (msec): min=4, max=553, avg=33.64, stdev=38.49 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 45], 90.00th=[ 79], 95.00th=[ 110], | 99.00th=[ 180], 99.50th=[ 226], 99.90th=[ 351], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 6, max= 104, per=33.38%, avg=26.37, stdev=18.42, samples=440 iops : min= 1, max= 26, avg= 5.99, stdev= 4.67, samples=440 write: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6296KiB/257294msec); 0 zone resets clat (msec): min=29, max=695, avg=131.37, stdev=68.12 lat (msec): min=29, max=695, avg=131.37, stdev=68.12 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 79], | 30.00th=[ 88], 40.00th=[ 100], 50.00th=[ 113], 60.00th=[ 130], | 70.00th=[ 150], 80.00th=[ 178], 90.00th=[ 226], 95.00th=[ 264], | 99.00th=[ 334], 99.50th=[ 380], 99.90th=[ 575], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 71, per=28.97%, avg=24.33, stdev=11.96, samples=499 iops : min= 1, max= 17, avg= 5.46, stdev= 3.06, samples=499 lat (msec) : 10=6.61%, 20=17.61%, 50=17.35%, 100=25.00%, 250=29.79% lat (msec) : 500=3.48%, 750=0.16% cpu : usr=0.05%, sys=1.12%, ctx=5313, 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=144938: Fri Oct 2 02:44:33 2026 read: IOPS=5, BW=22.9KiB/s (23.4kB/s)(5940KiB/259391msec) clat (msec): min=4, max=583, avg=33.72, stdev=40.19 lat (msec): min=4, max=583, avg=33.72, stdev=40.19 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 46], 90.00th=[ 79], 95.00th=[ 106], | 99.00th=[ 182], 99.50th=[ 279], 99.90th=[ 426], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 7, max= 95, per=33.12%, avg=26.17, stdev=17.29, samples=439 iops : min= 1, max= 23, avg= 5.94, stdev= 4.37, samples=439 write: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6348KiB/259391msec); 0 zone resets clat (msec): min=35, max=612, avg=131.81, stdev=70.26 lat (msec): min=35, max=612, avg=131.81, stdev=70.26 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 54], 10.00th=[ 63], 20.00th=[ 77], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 112], 60.00th=[ 130], | 70.00th=[ 150], 80.00th=[ 182], 90.00th=[ 230], 95.00th=[ 275], | 99.00th=[ 355], 99.50th=[ 401], 99.90th=[ 550], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 7, max= 72, per=28.85%, avg=24.23, stdev=12.01, samples=504 iops : min= 1, max= 18, avg= 5.44, stdev= 3.08, samples=504 lat (msec) : 10=5.92%, 20=18.36%, 50=16.73%, 100=25.62%, 250=29.13% lat (msec) : 500=4.13%, 750=0.10% cpu : usr=0.05%, sys=1.06%, ctx=5182, 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=144939: Fri Oct 2 02:44:33 2026 read: IOPS=5, BW=23.4KiB/s (23.9kB/s)(6028KiB/257846msec) clat (msec): min=4, max=307, avg=34.29, stdev=36.08 lat (msec): min=4, max=307, avg=34.30, stdev=36.08 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 34], 80.00th=[ 50], 90.00th=[ 78], 95.00th=[ 109], | 99.00th=[ 182], 99.50th=[ 211], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 7, max= 111, per=32.94%, avg=26.02, stdev=18.64, samples=448 iops : min= 1, max= 27, avg= 5.89, stdev= 4.72, samples=448 write: IOPS=6, BW=24.3KiB/s (24.9kB/s)(6260KiB/257846msec); 0 zone resets clat (msec): min=36, max=695, avg=131.66, stdev=70.79 lat (msec): min=36, max=695, avg=131.67, stdev=70.79 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 77], | 30.00th=[ 89], 40.00th=[ 102], 50.00th=[ 114], 60.00th=[ 129], | 70.00th=[ 150], 80.00th=[ 180], 90.00th=[ 222], 95.00th=[ 262], | 99.00th=[ 380], 99.50th=[ 418], 99.90th=[ 642], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 56, per=28.89%, avg=24.27, stdev=12.04, samples=497 iops : min= 1, max= 14, avg= 5.45, stdev= 3.08, samples=497 lat (msec) : 10=5.83%, 20=18.10%, 50=16.73%, 100=25.23%, 250=30.96% lat (msec) : 500=2.99%, 750=0.16% cpu : usr=0.04%, sys=1.11%, ctx=5333, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=144940: Fri Oct 2 02:44:33 2026 read: IOPS=4, BW=16.8KiB/s (17.2kB/s)(2772KiB/165089msec) clat (msec): min=6, max=345, avg=53.16, stdev=48.02 lat (msec): min=6, max=345, avg=53.17, stdev=48.02 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 23], 40.00th=[ 29], 50.00th=[ 39], 60.00th=[ 50], | 70.00th=[ 64], 80.00th=[ 83], 90.00th=[ 113], 95.00th=[ 144], | 99.00th=[ 247], 99.50th=[ 296], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 7, max= 79, per=25.32%, avg=20.00, stdev=13.37, samples=265 iops : min= 1, max= 19, avg= 4.35, stdev= 3.38, samples=265 write: IOPS=4, BW=17.5KiB/s (17.9kB/s)(2888KiB/165089msec); 0 zone resets clat (msec): min=39, max=649, avg=177.47, stdev=79.87 lat (msec): min=39, max=649, avg=177.48, stdev=79.87 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 71], 10.00th=[ 88], 20.00th=[ 107], | 30.00th=[ 130], 40.00th=[ 150], 50.00th=[ 169], 60.00th=[ 188], | 70.00th=[ 211], 80.00th=[ 232], 90.00th=[ 275], 95.00th=[ 321], | 99.00th=[ 422], 99.50th=[ 451], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7, max= 47, per=20.68%, avg=17.37, stdev= 8.44, samples=316 iops : min= 1, max= 11, avg= 3.69, stdev= 2.16, samples=316 lat (msec) : 10=2.68%, 20=10.24%, 50=16.81%, 100=21.05%, 250=41.17% lat (msec) : 500=7.77%, 750=0.21% cpu : usr=0.03%, sys=0.89%, ctx=2117, majf=0, minf=19 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=694,722,0,0 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=79.9KiB/s (81.8kB/s), 16.8KiB/s-23.4KiB/s (17.2kB/s-23.9kB/s), io=20.2MiB (21.2MB), run=165089-259391msec WRITE: bw=84.0KiB/s (86.0kB/s), 17.5KiB/s-24.5KiB/s (17.9kB/s-25.1kB/s), io=21.3MiB (22.3MB), run=165089-259391msec 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=144990: Fri Oct 2 02:45:11 2026 read: IOPS=13, BW=222KiB/s (228kB/s)(5920KiB/26609msec) clat (usec): min=35, max=142480, avg=35380.60, stdev=29490.70 lat (usec): min=35, max=142482, avg=35387.00, stdev=29491.37 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 64], 20.00th=[ 85], | 30.00th=[ 19268], 40.00th=[ 25822], 50.00th=[ 33162], 60.00th=[ 39584], | 70.00th=[ 47973], 80.00th=[ 57934], 90.00th=[ 77071], 95.00th=[ 90702], | 99.00th=[114820], 99.50th=[131597], 99.90th=[141558], 99.95th=[141558], | 99.99th=[141558] bw ( KiB/s): min= 32, max= 540, per=25.00%, avg=222.00, stdev=93.66, samples=52 iops : min= 2, max= 33, avg=13.10, stdev= 5.85, samples=52 write: IOPS=14, BW=239KiB/s (245kB/s)(6368KiB/26609msec); 0 zone resets clat (usec): min=1423, max=204313, avg=33529.27, stdev=36195.64 lat (usec): min=1425, max=204316, avg=33537.37, stdev=36193.64 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1729], 10.00th=[ 2147], 20.00th=[ 4817], | 30.00th=[ 7963], 40.00th=[ 12256], 50.00th=[ 19268], 60.00th=[ 30540], | 70.00th=[ 42206], 80.00th=[ 60031], 90.00th=[ 81265], 95.00th=[105382], | 99.00th=[162530], 99.50th=[200279], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 95, max= 475, per=25.65%, avg=239.79, stdev=95.11, samples=52 iops : min= 5, max= 29, avg=14.21, stdev= 5.99, samples=52 lat (usec) : 50=1.04%, 100=8.98%, 250=1.56%, 1000=0.26% lat (msec) : 2=4.82%, 4=4.04%, 10=9.90%, 20=10.81%, 50=32.16% lat (msec) : 100=22.40%, 250=4.04% cpu : usr=0.09%, sys=5.57%, ctx=1372, 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=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=144991: Fri Oct 2 02:45:11 2026 read: IOPS=13, BW=216KiB/s (221kB/s)(5744KiB/26619msec) clat (usec): min=24, max=213948, avg=38648.13, stdev=31754.48 lat (usec): min=24, max=213949, avg=38649.52, stdev=31754.51 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 125], | 30.00th=[ 22414], 40.00th=[ 29754], 50.00th=[ 35914], 60.00th=[ 42730], | 70.00th=[ 51119], 80.00th=[ 64226], 90.00th=[ 74974], 95.00th=[ 93848], | 99.00th=[130548], 99.50th=[173016], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 63, max= 538, per=24.43%, avg=216.96, stdev=88.71, samples=52 iops : min= 3, max= 33, avg=12.77, stdev= 5.62, samples=52 write: IOPS=15, BW=246KiB/s (252kB/s)(6544KiB/26619msec); 0 zone resets clat (usec): min=1309, max=200691, avg=30639.52, stdev=33414.36 lat (usec): min=1311, max=200694, avg=30648.89, stdev=33423.56 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 1647], 10.00th=[ 1893], 20.00th=[ 4621], | 30.00th=[ 8160], 40.00th=[ 11994], 50.00th=[ 17695], 60.00th=[ 27132], | 70.00th=[ 39060], 80.00th=[ 50594], 90.00th=[ 76022], 95.00th=[108528], | 99.00th=[137364], 99.50th=[152044], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 62, max= 476, per=26.26%, avg=245.52, stdev=95.62, samples=52 iops : min= 3, max= 29, avg=14.58, stdev= 6.01, samples=52 lat (usec) : 50=1.69%, 100=7.29%, 250=0.91%, 500=0.26%, 750=0.13% lat (msec) : 2=6.25%, 4=3.91%, 10=9.24%, 20=10.68%, 50=34.24% lat (msec) : 100=20.70%, 250=4.69% cpu : usr=0.10%, sys=6.01%, ctx=1396, 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=144992: Fri Oct 2 02:45:11 2026 read: IOPS=14, BW=232KiB/s (238kB/s)(6256KiB/26945msec) clat (usec): min=33, max=184409, avg=36743.65, stdev=31524.77 lat (usec): min=34, max=184411, avg=36749.94, stdev=31523.47 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 50], 10.00th=[ 60], 20.00th=[ 75], | 30.00th=[ 18744], 40.00th=[ 28967], 50.00th=[ 35914], 60.00th=[ 41157], | 70.00th=[ 49546], 80.00th=[ 59507], 90.00th=[ 73925], 95.00th=[ 92799], | 99.00th=[137364], 99.50th=[156238], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 63, max= 443, per=25.91%, avg=230.08, stdev=91.61, samples=52 iops : min= 3, max= 27, avg=13.60, stdev= 5.73, samples=52 write: IOPS=13, BW=224KiB/s (229kB/s)(6032KiB/26945msec); 0 zone resets clat (usec): min=1422, max=362922, avg=33241.90, stdev=37115.53 lat (usec): min=1424, max=362924, avg=33254.24, stdev=37108.62 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1745], 10.00th=[ 2409], 20.00th=[ 5342], | 30.00th=[ 8455], 40.00th=[ 12518], 50.00th=[ 19792], 60.00th=[ 29754], | 70.00th=[ 42206], 80.00th=[ 57934], 90.00th=[ 82314], 95.00th=[105382], | 99.00th=[141558], 99.50th=[147850], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 93, max= 446, per=23.27%, avg=217.62, stdev=90.58, samples=52 iops : min= 5, max= 27, avg=12.81, stdev= 5.70, samples=52 lat (usec) : 50=2.47%, 100=9.24%, 250=0.78%, 750=0.26%, 1000=0.26% lat (msec) : 2=4.04%, 4=3.65%, 10=8.98%, 20=11.33%, 50=31.51% lat (msec) : 100=22.53%, 250=4.82%, 500=0.13% cpu : usr=0.08%, sys=5.55%, ctx=1357, 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=144993: Fri Oct 2 02:45:11 2026 read: IOPS=14, BW=237KiB/s (243kB/s)(6032KiB/25444msec) clat (usec): min=18, max=170639, avg=35517.20, stdev=29698.05 lat (usec): min=18, max=170641, avg=35518.54, stdev=29698.12 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 70], | 30.00th=[ 19792], 40.00th=[ 29492], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 48497], 80.00th=[ 57934], 90.00th=[ 74974], 95.00th=[ 82314], | 99.00th=[133694], 99.50th=[145753], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 63, max= 478, per=26.27%, avg=233.29, stdev=89.49, samples=49 iops : min= 3, max= 29, avg=13.80, stdev= 5.60, samples=49 write: IOPS=15, BW=246KiB/s (252kB/s)(6256KiB/25444msec); 0 zone resets clat (usec): min=1348, max=193900, avg=30436.82, stdev=34157.95 lat (usec): min=1349, max=193902, avg=30439.07, stdev=34158.10 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1778], 10.00th=[ 2671], 20.00th=[ 4621], | 30.00th=[ 7111], 40.00th=[ 10028], 50.00th=[ 14615], 60.00th=[ 23462], | 70.00th=[ 38536], 80.00th=[ 56361], 90.00th=[ 79168], 95.00th=[101188], | 99.00th=[143655], 99.50th=[164627], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 95, max= 413, per=26.09%, avg=243.90, stdev=78.54, samples=49 iops : min= 5, max= 25, avg=14.47, stdev= 4.90, samples=49 lat (usec) : 20=0.13%, 50=2.08%, 100=9.77%, 250=0.52%, 500=0.39% lat (usec) : 1000=0.13% lat (msec) : 2=3.65%, 4=5.47%, 10=11.85%, 20=9.90%, 50=30.34% lat (msec) : 100=21.88%, 250=3.91% cpu : usr=0.08%, sys=5.39%, ctx=1276, 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=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=889KiB/s (910kB/s), 216KiB/s-237KiB/s (221kB/s-243kB/s), io=23.4MiB (24.5MB), run=25444-26945msec WRITE: bw=935KiB/s (958kB/s), 224KiB/s-246KiB/s (229kB/s-252kB/s), io=24.6MiB (25.8MB), run=25444-26945msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144997: Fri Oct 2 02:45:57 2026 read: IOPS=5, BW=82.0KiB/s (84.0kB/s)(5920KiB/71334msec) clat (msec): min=6, max=278, avg=38.09, stdev=34.41 lat (msec): min=6, max=278, avg=38.09, stdev=34.41 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 52], 90.00th=[ 75], 95.00th=[ 113], | 99.00th=[ 174], 99.50th=[ 203], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 286, per=27.94%, avg=92.77, stdev=53.21, samples=126 iops : min= 1, max= 17, avg= 5.03, stdev= 3.41, samples=126 write: IOPS=5, BW=89.3KiB/s (91.4kB/s)(6368KiB/71334msec); 0 zone resets clat (msec): min=48, max=493, avg=143.56, stdev=62.05 lat (msec): min=48, max=493, avg=143.56, stdev=62.05 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 70], 10.00th=[ 82], 20.00th=[ 96], | 30.00th=[ 106], 40.00th=[ 115], 50.00th=[ 128], 60.00th=[ 146], | 70.00th=[ 165], 80.00th=[ 190], 90.00th=[ 220], 95.00th=[ 262], | 99.00th=[ 338], 99.50th=[ 489], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 31, max= 191, per=25.68%, avg=89.62, stdev=36.71, samples=140 iops : min= 1, max= 11, avg= 4.83, stdev= 2.36, samples=140 lat (msec) : 10=1.69%, 20=13.67%, 50=22.66%, 100=19.14%, 250=39.19% lat (msec) : 500=3.65% cpu : usr=0.04%, sys=1.15%, ctx=1282, 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=144998: Fri Oct 2 02:45:57 2026 read: IOPS=4, BW=79.7KiB/s (81.6kB/s)(5744KiB/72068msec) clat (msec): min=6, max=208, avg=36.65, stdev=34.18 lat (msec): min=6, max=208, avg=36.66, stdev=34.18 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 81], 95.00th=[ 122], | 99.00th=[ 163], 99.50th=[ 207], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 25, max= 412, per=27.93%, avg=92.73, stdev=65.45, samples=121 iops : min= 1, max= 25, avg= 5.02, stdev= 4.13, samples=121 write: IOPS=5, BW=90.8KiB/s (92.0kB/s)(6544KiB/72068msec); 0 zone resets clat (msec): min=36, max=501, avg=143.74, stdev=63.95 lat (msec): min=36, max=501, avg=143.74, stdev=63.95 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 68], 10.00th=[ 80], 20.00th=[ 94], | 30.00th=[ 104], 40.00th=[ 115], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 228], 95.00th=[ 268], | 99.00th=[ 338], 99.50th=[ 368], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 25, max= 191, per=26.07%, avg=90.99, stdev=37.10, samples=141 iops : min= 1, max= 11, avg= 4.91, stdev= 2.37, samples=141 lat (msec) : 10=2.21%, 20=15.49%, 50=19.79%, 100=20.18%, 250=38.80% lat (msec) : 500=3.39%, 750=0.13% cpu : usr=0.04%, sys=1.10%, ctx=1289, 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=144999: Fri Oct 2 02:45:57 2026 read: IOPS=5, BW=90.6KiB/s (92.8kB/s)(6256KiB/69066msec) clat (msec): min=6, max=223, avg=35.21, stdev=34.09 lat (msec): min=6, max=223, avg=35.21, stdev=34.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 47], 90.00th=[ 69], 95.00th=[ 107], | 99.00th=[ 186], 99.50th=[ 213], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 31, max= 347, per=29.78%, avg=98.88, stdev=66.71, samples=125 iops : min= 1, max= 21, avg= 5.41, stdev= 4.21, samples=125 write: IOPS=5, BW=87.3KiB/s (89.4kB/s)(6032KiB/69066msec); 0 zone resets clat (msec): min=39, max=573, avg=146.47, stdev=68.30 lat (msec): min=39, max=573, avg=146.47, stdev=68.30 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 65], 10.00th=[ 75], 20.00th=[ 94], | 30.00th=[ 108], 40.00th=[ 121], 50.00th=[ 134], 60.00th=[ 146], | 70.00th=[ 163], 80.00th=[ 190], 90.00th=[ 226], 95.00th=[ 284], | 99.00th=[ 393], 99.50th=[ 414], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 30, max= 191, per=25.25%, avg=88.13, stdev=35.66, samples=134 iops : min= 1, max= 11, avg= 4.72, stdev= 2.27, samples=134 lat (msec) : 10=2.08%, 20=18.10%, 50=22.27%, 100=18.10%, 250=35.55% lat (msec) : 500=3.78%, 750=0.13% cpu : usr=0.03%, sys=1.20%, ctx=1342, 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=145000: Fri Oct 2 02:45:57 2026 read: IOPS=5, BW=85.1KiB/s (87.1kB/s)(6032KiB/70908msec) clat (msec): min=5, max=295, avg=35.71, stdev=33.22 lat (msec): min=5, max=295, avg=35.72, stdev=33.21 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 46], 90.00th=[ 71], 95.00th=[ 102], | 99.00th=[ 180], 99.50th=[ 253], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 351, per=29.12%, avg=96.67, stdev=63.54, samples=122 iops : min= 1, max= 21, avg= 5.25, stdev= 4.03, samples=122 write: IOPS=5, BW=88.2KiB/s (90.3kB/s)(6256KiB/70908msec); 0 zone resets clat (msec): min=40, max=452, avg=146.65, stdev=64.10 lat (msec): min=40, max=452, avg=146.66, stdev=64.10 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 66], 10.00th=[ 79], 20.00th=[ 94], | 30.00th=[ 109], 40.00th=[ 121], 50.00th=[ 133], 60.00th=[ 150], | 70.00th=[ 169], 80.00th=[ 192], 90.00th=[ 228], 95.00th=[ 268], | 99.00th=[ 359], 99.50th=[ 405], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 25, max= 191, per=25.40%, avg=88.64, stdev=37.20, samples=139 iops : min= 1, max= 11, avg= 4.76, stdev= 2.35, samples=139 lat (msec) : 10=2.34%, 20=13.15%, 50=25.52%, 100=18.62%, 250=36.20% lat (msec) : 500=4.17% cpu : usr=0.03%, sys=1.21%, ctx=1308, 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=332KiB/s (340kB/s), 79.7KiB/s-90.6KiB/s (81.6kB/s-92.8kB/s), io=23.4MiB (24.5MB), run=69066-72068msec WRITE: bw=350KiB/s (358kB/s), 87.3KiB/s-90.8KiB/s (89.4kB/s-92.0kB/s), io=24.6MiB (25.8MB), run=69066-72068msec 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=145021: Fri Oct 2 02:46:11 2026 read: IOPS=2, BW=2181KiB/s (2233kB/s)(7168KiB/3287msec) clat (msec): min=49, max=674, avg=183.18, stdev=218.21 lat (msec): min=49, max=674, avg=183.18, stdev=218.21 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 50], 10.00th=[ 50], 20.00th=[ 91], | 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 120], 60.00th=[ 123], | 70.00th=[ 123], 80.00th=[ 127], 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= 5807, per=90.83%, avg=3963.00, stdev=1904.65, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1558KiB/s (1595kB/s)(5120KiB/3287msec); 0 zone resets clat (msec): min=125, max=534, avg=361.07, stdev=152.88 lat (msec): min=125, max=534, avg=361.16, stdev=152.88 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 2027, max= 2039, per=33.28%, avg=2033.00, stdev= 5.16, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 50=8.33%, 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67% cpu : usr=0.03%, sys=4.81%, ctx=102, 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=145022: Fri Oct 2 02:46:11 2026 read: IOPS=0, BW=436KiB/s (447kB/s)(2048KiB/4693msec) clat (msec): min=132, max=526, avg=329.69, stdev=278.19 lat (msec): min=132, max=526, avg=329.69, stdev=278.19 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 133], | 30.00th=[ 133], 40.00th=[ 133], 50.00th=[ 133], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1976, max= 2027, per=45.87%, avg=2001.50, stdev=36.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2182KiB/s (2234kB/s)(10.0MiB/4693msec); 0 zone resets clat (msec): min=130, max=744, avg=387.41, stdev=202.19 lat (msec): min=130, max=744, avg=387.52, stdev=202.19 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 165], | 30.00th=[ 199], 40.00th=[ 262], 50.00th=[ 334], 60.00th=[ 468], | 70.00th=[ 493], 80.00th=[ 498], 90.00th=[ 592], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1976, max= 4087, per=42.71%, avg=2608.86, stdev=1007.23, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=33.33%, 500=41.67%, 750=25.00% cpu : usr=0.02%, sys=4.43%, ctx=120, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145023: Fri Oct 2 02:46:11 2026 read: IOPS=1, BW=1432KiB/s (1467kB/s)(6144KiB/4290msec) clat (msec): min=87, max=322, avg=240.52, stdev=88.45 lat (msec): min=87, max=322, avg=240.52, stdev=88.45 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 184], | 30.00th=[ 184], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 288], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 2023, max= 4063, per=77.48%, avg=3380.33, stdev=1175.49, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1432KiB/s (1467kB/s)(6144KiB/4290msec); 0 zone resets clat (msec): min=191, max=1054, avg=463.31, stdev=332.89 lat (msec): min=191, max=1054, avg=463.42, stdev=332.88 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 384], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 2035, max= 3828, per=40.70%, avg=2486.25, stdev=894.51, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.89%, ctx=110, 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=145024: Fri Oct 2 02:46:11 2026 read: IOPS=1, BW=1176KiB/s (1204kB/s)(5120KiB/4354msec) clat (msec): min=119, max=641, avg=329.77, stdev=217.11 lat (msec): min=119, max=641, avg=329.77, stdev=217.11 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 224], 60.00th=[ 224], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 4071, max= 4071, per=93.31%, avg=4071.00, stdev= 0.00, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1646KiB/s (1686kB/s)(7168KiB/4354msec); 0 zone resets clat (msec): min=143, max=1079, avg=375.23, stdev=316.88 lat (msec): min=143, max=1079, avg=375.32, stdev=316.88 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 215], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 279], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 330], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 2035, max= 4237, per=50.54%, avg=3087.50, stdev=1215.70, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.23%, ctx=55, 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=4364KiB/s (4469kB/s), 436KiB/s-2181KiB/s (447kB/s-2233kB/s), io=20.0MiB (20.0MB), run=3287-4693msec WRITE: bw=6110KiB/s (6256kB/s), 1432KiB/s-2182KiB/s (1467kB/s-2234kB/s), io=28.0MiB (29.4MB), run=3287-4693msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145026: Fri Oct 2 02:46:11 2026 read: IOPS=2, BW=2682KiB/s (2746kB/s)(7168KiB/2673msec) clat (msec): min=4, max=412, avg=200.37, stdev=154.08 lat (msec): min=4, max=412, avg=200.37, stdev=154.08 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 43], | 30.00th=[ 103], 40.00th=[ 103], 50.00th=[ 251], 60.00th=[ 253], | 70.00th=[ 253], 80.00th=[ 338], 90.00th=[ 414], 95.00th=[ 414], | 99.00th=[ 414], 99.50th=[ 414], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 2023, max= 4055, per=55.98%, avg=2867.50, stdev=1009.29, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1915KiB/s (1961kB/s)(5120KiB/2673msec); 0 zone resets clat (msec): min=190, max=400, avg=253.61, stdev=85.30 lat (msec): min=190, max=400, avg=253.92, stdev=85.13 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 239], 60.00th=[ 239], | 70.00th=[ 243], 80.00th=[ 243], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 2023, max= 3953, per=37.24%, avg=2670.33, stdev=1110.84, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 10=8.33%, 50=8.33%, 250=41.67%, 500=41.67% cpu : usr=0.07%, sys=12.54%, ctx=184, 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=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=145027: Fri Oct 2 02:46:11 2026 read: IOPS=0, BW=512KiB/s (525kB/s)(2048KiB/3998msec) clat (msec): min=295, max=417, avg=356.24, stdev=86.40 lat (msec): min=295, max=417, avg=356.24, stdev=86.40 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 418], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 418], 95.00th=[ 418], | 99.00th=[ 418], 99.50th=[ 418], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 1695, max= 2023, per=36.29%, avg=1859.00, stdev=231.93, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2561KiB/s (2623kB/s)(10.0MiB/3998msec); 0 zone resets clat (msec): min=102, max=510, avg=327.98, stdev=128.07 lat (msec): min=102, max=510, avg=328.15, stdev=128.09 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 182], | 30.00th=[ 228], 40.00th=[ 305], 50.00th=[ 342], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 384], 90.00th=[ 481], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 1695, max= 4055, per=40.75%, avg=2922.17, stdev=1108.33, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=25.00%, 500=66.67%, 750=8.33% cpu : usr=0.08%, sys=15.14%, ctx=164, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145028: Fri Oct 2 02:46:11 2026 read: IOPS=1, BW=1725KiB/s (1766kB/s)(6144KiB/3562msec) clat (usec): min=354, max=245512, avg=128719.96, stdev=124243.37 lat (usec): min=354, max=245513, avg=128721.02, stdev=124243.55 clat percentiles (usec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 816], | 30.00th=[ 816], 40.00th=[ 47973], 50.00th=[ 47973], 60.00th=[235930], | 70.00th=[242222], 80.00th=[242222], 90.00th=[246416], 95.00th=[246416], | 99.00th=[246416], 99.50th=[246416], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 3953, max= 4055, per=78.17%, avg=4004.00, stdev=72.12, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1725KiB/s (1766kB/s)(6144KiB/3562msec); 0 zone resets clat (msec): min=159, max=1221, avg=462.63, stdev=405.52 lat (msec): min=160, max=1221, avg=462.72, stdev=405.49 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 253], 50.00th=[ 253], 60.00th=[ 271], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1678, max= 2043, per=27.22%, avg=1951.80, stdev=155.28, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=8.33%, 1000=8.33% lat (msec) : 50=8.33%, 250=41.67%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=10.78%, ctx=123, 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=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=145029: Fri Oct 2 02:46:11 2026 read: IOPS=2, BW=2104KiB/s (2154kB/s)(5120KiB/2434msec) clat (usec): min=383, max=228224, avg=84720.62, stdev=93753.71 lat (usec): min=384, max=228226, avg=84721.51, stdev=93754.07 clat percentiles (usec): | 1.00th=[ 383], 5.00th=[ 383], 10.00th=[ 383], 20.00th=[ 383], | 30.00th=[ 529], 40.00th=[ 529], 50.00th=[ 91751], 60.00th=[ 91751], | 70.00th=[102237], 80.00th=[102237], 90.00th=[227541], 95.00th=[227541], | 99.00th=[227541], 99.50th=[227541], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2945KiB/s (3016kB/s)(7168KiB/2434msec); 0 zone resets clat (msec): min=117, max=650, avg=285.96, stdev=183.39 lat (msec): min=117, max=650, avg=286.07, stdev=183.40 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 125], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 257], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 376], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 2027, max= 5351, per=52.67%, avg=3777.00, stdev=1668.97, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=14.67%, ctx=103, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5123KiB/s (5246kB/s), 512KiB/s-2682KiB/s (525kB/s-2746kB/s), io=20.0MiB (20.0MB), run=2434-3998msec WRITE: bw=7172KiB/s (7344kB/s), 1725KiB/s-2945KiB/s (1766kB/s-3016kB/s), io=28.0MiB (29.4MB), run=2434-3998msec 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=145037: Fri Oct 2 02:46:29 2026 read: IOPS=1, BW=6285KiB/s (6436kB/s)(12.0MiB/1955msec) clat (msec): min=297, max=958, avg=585.68, stdev=338.22 lat (msec): min=297, max=958, avg=585.68, stdev=338.22 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min=16253, max=16253, per=100.00%, avg=16253.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=4.55%, 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=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=145038: Fri Oct 2 02:46:29 2026 read: IOPS=0, BW=934KiB/s (956kB/s)(4096KiB/4386msec) clat (nsec): min=1255.8M, max=1255.8M, avg=1255803790.00, stdev= 0.00 lat (nsec): min=1255.8M, max=1255.8M, avg=1255805970.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1250], 5.00th=[ 1250], 10.00th=[ 1250], 20.00th=[ 1250], | 30.00th=[ 1250], 40.00th=[ 1250], 50.00th=[ 1250], 60.00th=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] 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 write: IOPS=0, BW=1868KiB/s (1913kB/s)(8192KiB/4386msec); 0 zone resets clat (msec): min=947, max=1994, avg=1470.78, stdev=740.22 lat (msec): min=947, max=1994, avg=1471.23, stdev=740.15 clat percentiles (msec): | 1.00th=[ 944], 5.00th=[ 944], 10.00th=[ 944], 20.00th=[ 944], | 30.00th=[ 944], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 1989], | 70.00th=[ 1989], 80.00th=[ 1989], 90.00th=[ 1989], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.39%, ctx=50, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145040: Fri Oct 2 02:46:29 2026 write: IOPS=0, BW=2771KiB/s (2837kB/s)(12.0MiB/4435msec); 0 zone resets clat (msec): min=479, max=1923, avg=1407.98, stdev=805.65 lat (msec): min=479, max=1927, avg=1409.61, stdev=807.00 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 1821], 50.00th=[ 1821], 60.00th=[ 1821], | 70.00th=[ 1921], 80.00th=[ 1921], 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= 8047, max= 8062, per=100.00%, avg=8054.50, stdev=10.61, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.05%, sys=4.29%, ctx=63, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145041: Fri Oct 2 02:46:29 2026 write: IOPS=0, BW=4039KiB/s (4136kB/s)(12.0MiB/3042msec); 0 zone resets clat (msec): min=683, max=1409, avg=969.46, stdev=386.47 lat (msec): min=683, max=1409, avg=971.98, stdev=385.24 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 818], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8126, max= 8143, per=100.00%, avg=8134.50, stdev=12.02, 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=0.07%, sys=3.52%, ctx=39, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3736KiB/s (3825kB/s), 934KiB/s-6285KiB/s (956kB/s-6436kB/s), io=16.0MiB (16.8MB), run=1955-4386msec WRITE: bw=7389KiB/s (7566kB/s), 1868KiB/s-4039KiB/s (1913kB/s-4136kB/s), io=32.0MiB (33.6MB), run=3042-4435msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145042: Fri Oct 2 02:46:29 2026 read: IOPS=0, BW=3609KiB/s (3695kB/s)(12.0MiB/3405msec) clat (msec): min=982, max=1253, avg=1134.80, stdev=138.19 lat (msec): min=982, max=1253, avg=1134.80, stdev=138.19 clat percentiles (msec): | 1.00th=[ 986], 5.00th=[ 986], 10.00th=[ 986], 20.00th=[ 986], | 30.00th=[ 986], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=8.73%, ctx=167, 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=145043: Fri Oct 2 02:46:29 2026 read: IOPS=0, BW=932KiB/s (954kB/s)(4096KiB/4397msec) clat (nsec): min=955297k, max=955297k, avg=955296668.00, stdev= 0.00 lat (nsec): min=955299k, max=955299k, avg=955299425.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 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= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1863KiB/s (1908kB/s)(8192KiB/4397msec); 0 zone resets clat (msec): min=1357, max=2064, avg=1710.67, stdev=499.99 lat (msec): min=1357, max=2064, avg=1711.09, stdev=499.88 clat percentiles (msec): | 1.00th=[ 1351], 5.00th=[ 1351], 10.00th=[ 1351], 20.00th=[ 1351], | 30.00th=[ 1351], 40.00th=[ 1351], 50.00th=[ 1351], 60.00th=[ 2072], | 70.00th=[ 2072], 80.00th=[ 2072], 90.00th=[ 2072], 95.00th=[ 2072], | 99.00th=[ 2072], 99.50th=[ 2072], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] 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 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.82%, ctx=72, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145044: Fri Oct 2 02:46:29 2026 write: IOPS=0, BW=2714KiB/s (2779kB/s)(12.0MiB/4528msec); 0 zone resets clat (msec): min=448, max=2063, avg=1507.60, stdev=917.31 lat (msec): min=450, max=2065, avg=1508.96, stdev=916.85 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 2005], 50.00th=[ 2005], 60.00th=[ 2005], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 8062, max= 8175, per=100.00%, avg=8118.50, stdev=79.90, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=1.83%, ctx=37, 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=145045: Fri Oct 2 02:46:29 2026 write: IOPS=0, BW=3764KiB/s (3854kB/s)(12.0MiB/3265msec); 0 zone resets clat (msec): min=784, max=1404, avg=1087.68, stdev=309.74 lat (msec): min=785, max=1404, avg=1088.11, stdev=309.72 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8159, max= 8175, per=100.00%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.02%, ctx=63, 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=3726KiB/s (3816kB/s), 932KiB/s-3609KiB/s (954kB/s-3695kB/s), io=16.0MiB (16.8MB), run=3405-4397msec WRITE: bw=7237KiB/s (7410kB/s), 1863KiB/s-3764KiB/s (1908kB/s-3854kB/s), io=32.0MiB (33.6MB), run=3265-4528msec