== sanity test 398b: DIO and buffer IO race ============== 16:38:05 (1787344685) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.47936 s, 6.7 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=178476: Fri Aug 21 16:40:34 2026 read: IOPS=11, BW=47.6KiB/s (48.7kB/s)(5992KiB/125947msec) clat (usec): min=38, max=917010, avg=46218.58, stdev=38107.20 lat (usec): min=40, max=917011, avg=46220.75, stdev=38107.14 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 7504], 10.00th=[ 16712], 20.00th=[ 23462], | 30.00th=[ 28181], 40.00th=[ 33424], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 53740], 80.00th=[ 65274], 90.00th=[ 81265], 95.00th=[102237], | 99.00th=[152044], 99.50th=[170918], 99.90th=[304088], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 7, max= 103, per=25.03%, avg=47.55, stdev=19.40, samples=246 iops : min= 1, max= 25, avg=11.24, stdev= 4.91, samples=246 write: IOPS=12, BW=49.0KiB/s (51.2kB/s)(6296KiB/125947msec); 0 zone resets clat (usec): min=724, max=227262, avg=35714.76, stdev=36939.88 lat (usec): min=725, max=227264, avg=35717.06, stdev=36940.69 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1467], 20.00th=[ 3785], | 30.00th=[ 7570], 40.00th=[ 16319], 50.00th=[ 25822], 60.00th=[ 34866], | 70.00th=[ 46400], 80.00th=[ 61604], 90.00th=[ 86508], 95.00th=[108528], | 99.00th=[166724], 99.50th=[177210], 99.90th=[219153], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 7, max= 120, per=25.06%, avg=49.88, stdev=21.81, samples=246 iops : min= 1, max= 30, avg=11.84, stdev= 5.52, samples=246 lat (usec) : 50=0.16%, 100=1.92%, 250=0.10%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.16% lat (msec) : 2=6.58%, 4=3.87%, 10=6.93%, 20=10.06%, 50=39.32% lat (msec) : 100=24.77%, 250=5.92%, 500=0.03%, 1000=0.03% cpu : usr=0.10%, sys=5.06%, ctx=6452, 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=178477: Fri Aug 21 16:40:34 2026 read: IOPS=12, BW=48.0KiB/s (49.2kB/s)(5940KiB/123676msec) clat (usec): min=42, max=279475, avg=45669.18, stdev=28218.39 lat (usec): min=42, max=279477, avg=45676.42, stdev=28215.85 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 11207], 10.00th=[ 17695], 20.00th=[ 23987], | 30.00th=[ 29230], 40.00th=[ 34341], 50.00th=[ 40633], 60.00th=[ 47449], | 70.00th=[ 55313], 80.00th=[ 65274], 90.00th=[ 81265], 95.00th=[ 94897], | 99.00th=[139461], 99.50th=[162530], 99.90th=[221250], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 5, max= 95, per=25.14%, avg=47.77, stdev=16.50, samples=243 iops : min= 1, max= 23, avg=11.30, stdev= 4.16, samples=243 write: IOPS=12, BW=51.3KiB/s (52.6kB/s)(6348KiB/123676msec); 0 zone resets clat (usec): min=698, max=888376, avg=34875.08, stdev=41216.37 lat (usec): min=699, max=888378, avg=34879.74, stdev=41214.53 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1401], 20.00th=[ 3359], | 30.00th=[ 7177], 40.00th=[ 16188], 50.00th=[ 24773], 60.00th=[ 34341], | 70.00th=[ 44303], 80.00th=[ 59507], 90.00th=[ 83362], 95.00th=[104334], | 99.00th=[156238], 99.50th=[177210], 99.90th=[274727], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 7, max= 128, per=25.61%, avg=50.97, stdev=22.51, samples=243 iops : min= 1, max= 32, avg=12.11, stdev= 5.68, samples=243 lat (usec) : 50=0.16%, 100=1.73%, 250=0.07%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.36% lat (msec) : 2=7.00%, 4=4.20%, 10=6.35%, 20=9.11%, 50=39.68% lat (msec) : 100=26.40%, 250=4.72%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=5.11%, ctx=6371, 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=178480: Fri Aug 21 16:40:34 2026 read: IOPS=11, BW=47.9KiB/s (48.0kB/s)(6028KiB/125975msec) clat (usec): min=40, max=217621, avg=45457.24, stdev=29775.08 lat (usec): min=40, max=217622, avg=45464.25, stdev=29773.65 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 289], 10.00th=[ 15401], 20.00th=[ 22676], | 30.00th=[ 28443], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 46400], | 70.00th=[ 54264], 80.00th=[ 66323], 90.00th=[ 85459], 95.00th=[100140], | 99.00th=[147850], 99.50th=[168821], 99.90th=[204473], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 7, max= 95, per=25.11%, avg=47.71, stdev=18.20, samples=246 iops : min= 1, max= 23, avg=11.29, stdev= 4.58, samples=246 write: IOPS=12, BW=49.7KiB/s (50.9kB/s)(6260KiB/125975msec); 0 zone resets clat (usec): min=777, max=880932, avg=36426.94, stdev=42702.01 lat (usec): min=779, max=880933, avg=36430.26, stdev=42701.06 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1401], 20.00th=[ 3130], | 30.00th=[ 7046], 40.00th=[ 16057], 50.00th=[ 25297], 60.00th=[ 35390], | 70.00th=[ 47449], 80.00th=[ 62653], 90.00th=[ 91751], 95.00th=[111674], | 99.00th=[158335], 99.50th=[177210], 99.90th=[206570], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 7, max= 133, per=24.65%, avg=49.06, stdev=22.17, samples=248 iops : min= 1, max= 33, avg=11.63, stdev= 5.61, samples=248 lat (usec) : 50=0.20%, 100=1.95%, 250=0.29%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=7.23%, 4=4.39%, 10=6.32%, 20=9.44%, 50=38.96% lat (msec) : 100=24.32%, 250=6.61%, 1000=0.03% cpu : usr=0.08%, sys=5.05%, ctx=6343, 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=178482: Fri Aug 21 16:40:34 2026 read: IOPS=12, BW=48.1KiB/s (49.3kB/s)(6052KiB/125738msec) clat (usec): min=34, max=1000.8k, avg=46474.69, stdev=38559.38 lat (usec): min=35, max=1000.8k, avg=46478.97, stdev=38558.82 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 10028], 10.00th=[ 17695], | 20.00th=[ 23987], 30.00th=[ 28705], 40.00th=[ 34341], | 50.00th=[ 39584], 60.00th=[ 46924], 70.00th=[ 55313], | 80.00th=[ 65799], 90.00th=[ 81265], 95.00th=[ 96994], | 99.00th=[ 154141], 99.50th=[ 179307], 99.90th=[ 256902], | 99.95th=[1002439], 99.99th=[1002439] bw ( KiB/s): min= 7, max= 112, per=25.30%, avg=48.08, stdev=17.90, samples=246 iops : min= 1, max= 28, avg=11.38, stdev= 4.51, samples=246 write: IOPS=12, BW=49.6KiB/s (50.8kB/s)(6236KiB/125738msec); 0 zone resets clat (usec): min=783, max=225357, avg=35259.13, stdev=36250.62 lat (usec): min=784, max=225358, avg=35261.19, stdev=36250.38 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1549], 20.00th=[ 3818], | 30.00th=[ 6980], 40.00th=[ 15664], 50.00th=[ 25297], 60.00th=[ 34341], | 70.00th=[ 45876], 80.00th=[ 61604], 90.00th=[ 87557], 95.00th=[108528], | 99.00th=[152044], 99.50th=[175113], 99.90th=[223347], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 7, max= 119, per=24.84%, avg=49.42, stdev=20.78, samples=246 iops : min= 1, max= 29, avg=11.73, stdev= 5.23, samples=246 lat (usec) : 50=0.26%, 100=1.63%, 250=0.16%, 500=0.03%, 750=0.10% lat (usec) : 1000=0.46% lat (msec) : 2=6.05%, 4=4.10%, 10=6.87%, 20=9.41%, 50=39.49% lat (msec) : 100=25.81%, 250=5.57%, 500=0.03%, 2000=0.03% cpu : usr=0.09%, sys=4.92%, ctx=6368, 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=191KiB/s (195kB/s), 47.6KiB/s-48.1KiB/s (48.7kB/s-49.3kB/s), io=23.4MiB (24.6MB), run=123676-125975msec WRITE: bw=200KiB/s (204kB/s), 49.6KiB/s-51.3KiB/s (50.8kB/s-52.6kB/s), io=24.6MiB (25.7MB), run=123676-125975msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178475: Fri Aug 21 16:41:17 2026 read: IOPS=8, BW=35.5KiB/s (36.3kB/s)(5992KiB/168797msec) clat (msec): min=5, max=920, avg=43.86, stdev=45.18 lat (msec): min=5, max=920, avg=43.87, stdev=45.17 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 63], 90.00th=[ 97], 95.00th=[ 129], | 99.00th=[ 199], 99.50th=[ 232], 99.90th=[ 321], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 143, per=25.25%, avg=35.86, stdev=23.93, samples=324 iops : min= 1, max= 35, avg= 8.29, stdev= 6.01, samples=324 write: IOPS=9, BW=37.3KiB/s (38.2kB/s)(6296KiB/168797msec); 0 zone resets clat (msec): min=10, max=347, avg=65.21, stdev=44.90 lat (msec): min=10, max=347, avg=65.21, stdev=44.90 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 77], 80.00th=[ 97], 90.00th=[ 124], 95.00th=[ 155], | 99.00th=[ 230], 99.50th=[ 259], 99.90th=[ 313], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 7, max= 119, per=25.06%, avg=37.09, stdev=22.74, samples=329 iops : min= 1, max= 29, avg= 8.60, stdev= 5.72, samples=329 lat (msec) : 10=1.95%, 20=13.93%, 50=45.38%, 100=24.74%, 250=13.51% lat (msec) : 500=0.46%, 1000=0.03% cpu : usr=0.08%, sys=1.69%, ctx=4705, 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=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=178478: Fri Aug 21 16:41:17 2026 read: IOPS=8, BW=35.3KiB/s (36.1kB/s)(5940KiB/168358msec) clat (msec): min=4, max=992, avg=44.01, stdev=45.34 lat (msec): min=4, max=992, avg=44.01, stdev=45.34 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 97], 95.00th=[ 125], | 99.00th=[ 188], 99.50th=[ 218], 99.90th=[ 251], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 117, per=25.30%, avg=35.93, stdev=23.42, samples=321 iops : min= 1, max= 29, avg= 8.31, stdev= 5.88, samples=321 write: IOPS=9, BW=37.7KiB/s (38.6kB/s)(6348KiB/168358msec); 0 zone resets clat (msec): min=10, max=284, avg=64.61, stdev=43.41 lat (msec): min=10, max=284, avg=64.61, stdev=43.41 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 61], | 70.00th=[ 75], 80.00th=[ 94], 90.00th=[ 125], 95.00th=[ 157], | 99.00th=[ 220], 99.50th=[ 243], 99.90th=[ 279], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 127, per=25.29%, avg=37.43, stdev=22.29, samples=329 iops : min= 1, max= 31, avg= 8.68, stdev= 5.60, samples=329 lat (msec) : 10=1.82%, 20=13.44%, 50=45.67%, 100=25.42%, 250=13.35% lat (msec) : 500=0.26%, 1000=0.03% cpu : usr=0.06%, sys=1.79%, ctx=4725, 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=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=178479: Fri Aug 21 16:41:17 2026 read: IOPS=8, BW=35.8KiB/s (36.7kB/s)(6028KiB/168178msec) clat (msec): min=5, max=265, avg=41.99, stdev=36.88 lat (msec): min=5, max=265, avg=41.99, stdev=36.88 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 62], 90.00th=[ 90], 95.00th=[ 122], | 99.00th=[ 178], 99.50th=[ 215], 99.90th=[ 264], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 7, max= 135, per=25.38%, avg=36.05, stdev=23.64, samples=325 iops : min= 1, max= 33, avg= 8.34, stdev= 5.94, samples=325 write: IOPS=9, BW=37.2KiB/s (38.1kB/s)(6260KiB/168178msec); 0 zone resets clat (msec): min=12, max=1057, avg=66.76, stdev=51.25 lat (msec): min=12, max=1057, avg=66.76, stdev=51.25 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 63], | 70.00th=[ 78], 80.00th=[ 97], 90.00th=[ 128], 95.00th=[ 159], | 99.00th=[ 226], 99.50th=[ 247], 99.90th=[ 317], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 127, per=25.30%, avg=37.45, stdev=22.07, samples=325 iops : min= 1, max= 31, avg= 8.69, stdev= 5.53, samples=325 lat (msec) : 10=1.86%, 20=13.83%, 50=45.54%, 100=25.26%, 250=13.28% lat (msec) : 500=0.20%, 2000=0.03% cpu : usr=0.06%, sys=1.69%, ctx=4703, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178481: Fri Aug 21 16:41:17 2026 read: IOPS=8, BW=35.9KiB/s (36.7kB/s)(6052KiB/168710msec) clat (msec): min=3, max=325, avg=43.21, stdev=39.51 lat (msec): min=3, max=325, avg=43.22, stdev=39.51 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 46], 80.00th=[ 62], 90.00th=[ 95], 95.00th=[ 128], | 99.00th=[ 194], 99.50th=[ 209], 99.90th=[ 313], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 7, max= 143, per=25.80%, avg=36.64, stdev=24.80, samples=321 iops : min= 1, max= 35, avg= 8.49, stdev= 6.23, samples=321 write: IOPS=9, BW=36.0KiB/s (37.8kB/s)(6236KiB/168710msec); 0 zone resets clat (msec): min=13, max=1038, avg=65.99, stdev=50.84 lat (msec): min=13, max=1038, avg=65.99, stdev=50.84 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 62], | 70.00th=[ 73], 80.00th=[ 93], 90.00th=[ 126], 95.00th=[ 155], | 99.00th=[ 224], 99.50th=[ 264], 99.90th=[ 359], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 119, per=25.10%, avg=37.14, stdev=21.68, samples=326 iops : min= 1, max= 29, avg= 8.61, stdev= 5.44, samples=326 lat (msec) : 4=0.03%, 10=2.02%, 20=13.31%, 50=45.44%, 100=25.42% lat (msec) : 250=13.25%, 500=0.49%, 2000=0.03% cpu : usr=0.07%, sys=1.74%, ctx=4676, 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=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=142KiB/s (146kB/s), 35.3KiB/s-35.9KiB/s (36.1kB/s-36.7kB/s), io=23.4MiB (24.6MB), run=168178-168797msec WRITE: bw=149KiB/s (153kB/s), 36.0KiB/s-37.7KiB/s (37.8kB/s-38.6kB/s), io=24.6MiB (25.7MB), run=168178-168797msec 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=178519: Fri Aug 21 16:42:02 2026 read: IOPS=11, BW=185KiB/s (190kB/s)(5920KiB/31984msec) clat (usec): min=41, max=213576, avg=45031.91, stdev=30340.96 lat (usec): min=41, max=213577, avg=45033.48, stdev=30341.18 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 239], 20.00th=[ 23987], | 30.00th=[ 30540], 40.00th=[ 36439], 50.00th=[ 40633], 60.00th=[ 46400], | 70.00th=[ 53740], 80.00th=[ 64226], 90.00th=[ 84411], 95.00th=[100140], | 99.00th=[141558], 99.50th=[170918], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 32, max= 375, per=25.54%, avg=184.62, stdev=74.72, samples=63 iops : min= 2, max= 23, avg=10.76, stdev= 4.72, samples=63 write: IOPS=12, BW=199KiB/s (204kB/s)(6368KiB/31984msec); 0 zone resets clat (usec): min=1303, max=161877, avg=37577.34, stdev=34702.94 lat (usec): min=1306, max=161878, avg=37580.10, stdev=34702.68 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1860], 10.00th=[ 2999], 20.00th=[ 6849], | 30.00th=[ 11469], 40.00th=[ 18482], 50.00th=[ 28181], 60.00th=[ 38011], | 70.00th=[ 47973], 80.00th=[ 62653], 90.00th=[ 91751], 95.00th=[106431], | 99.00th=[141558], 99.50th=[154141], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 63, max= 410, per=26.59%, avg=202.35, stdev=74.80, samples=62 iops : min= 3, max= 25, avg=11.87, stdev= 4.75, samples=62 lat (usec) : 50=0.39%, 100=3.91%, 250=0.65%, 500=0.39% lat (msec) : 2=2.60%, 4=3.65%, 10=8.20%, 20=9.11%, 50=39.71% lat (msec) : 100=25.00%, 250=6.38% cpu : usr=0.08%, sys=5.67%, ctx=1639, 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=178520: Fri Aug 21 16:42:02 2026 read: IOPS=10, BW=174KiB/s (178kB/s)(5744KiB/33094msec) clat (usec): min=40, max=271731, avg=46973.63, stdev=31842.91 lat (usec): min=40, max=271732, avg=46974.92, stdev=31842.90 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 231], 20.00th=[ 25297], | 30.00th=[ 31851], 40.00th=[ 36963], 50.00th=[ 41681], 60.00th=[ 49021], | 70.00th=[ 58459], 80.00th=[ 66847], 90.00th=[ 88605], 95.00th=[101188], | 99.00th=[147850], 99.50th=[149947], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 62, max= 351, per=23.90%, avg=172.83, stdev=75.26, samples=64 iops : min= 3, max= 21, avg=10.03, stdev= 4.78, samples=64 write: IOPS=12, BW=198KiB/s (202kB/s)(6544KiB/33094msec); 0 zone resets clat (usec): min=1123, max=187373, avg=39285.71, stdev=36187.68 lat (usec): min=1125, max=187376, avg=39289.76, stdev=36188.25 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 2147], 10.00th=[ 3359], 20.00th=[ 7046], | 30.00th=[ 11469], 40.00th=[ 19530], 50.00th=[ 29230], 60.00th=[ 39060], | 70.00th=[ 51119], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[112722], | 99.00th=[139461], 99.50th=[156238], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 61, max= 350, per=25.68%, avg=195.39, stdev=75.77, samples=64 iops : min= 3, max= 21, avg=11.44, stdev= 4.74, samples=64 lat (usec) : 50=0.39%, 100=3.91%, 250=0.39%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=2.60%, 4=3.52%, 10=8.85%, 20=8.07%, 50=37.24% lat (msec) : 100=28.26%, 250=6.25%, 500=0.13% cpu : usr=0.07%, sys=5.46%, ctx=1575, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178522: Fri Aug 21 16:42:02 2026 read: IOPS=12, BW=193KiB/s (197kB/s)(6256KiB/32484msec) clat (usec): min=35, max=202631, avg=47781.25, stdev=31375.93 lat (usec): min=36, max=202632, avg=47783.80, stdev=31376.97 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 13566], 20.00th=[ 25297], | 30.00th=[ 31851], 40.00th=[ 38011], 50.00th=[ 43779], 60.00th=[ 50070], | 70.00th=[ 56886], 80.00th=[ 68682], 90.00th=[ 84411], 95.00th=[106431], | 99.00th=[139461], 99.50th=[202376], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 63, max= 512, per=26.70%, avg=193.06, stdev=78.22, samples=63 iops : min= 3, max= 32, avg=11.30, stdev= 4.95, samples=63 write: IOPS=11, BW=186KiB/s (190kB/s)(6032KiB/32484msec); 0 zone resets clat (usec): min=929, max=205318, avg=35917.50, stdev=35297.30 lat (usec): min=931, max=205319, avg=35920.59, stdev=35297.41 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1778], 10.00th=[ 2507], 20.00th=[ 5538], | 30.00th=[ 8979], 40.00th=[ 16581], 50.00th=[ 26084], 60.00th=[ 35390], | 70.00th=[ 45876], 80.00th=[ 61604], 90.00th=[ 88605], 95.00th=[106431], | 99.00th=[152044], 99.50th=[170918], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 63, max= 335, per=24.07%, avg=183.19, stdev=68.09, samples=63 iops : min= 3, max= 20, avg=10.67, stdev= 4.27, samples=63 lat (usec) : 50=0.39%, 100=3.78%, 250=0.39%, 1000=0.13% lat (msec) : 2=3.65%, 4=3.91%, 10=7.81%, 20=9.64%, 50=36.46% lat (msec) : 100=27.34%, 250=6.51% cpu : usr=0.08%, sys=5.41%, ctx=1623, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178524: Fri Aug 21 16:42:02 2026 read: IOPS=11, BW=190KiB/s (194kB/s)(6032KiB/31809msec) clat (usec): min=41, max=210365, avg=45338.22, stdev=30828.47 lat (usec): min=42, max=210367, avg=45339.53, stdev=30828.48 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 70], 10.00th=[ 161], 20.00th=[ 22676], | 30.00th=[ 30016], 40.00th=[ 35390], 50.00th=[ 40633], 60.00th=[ 48497], | 70.00th=[ 57410], 80.00th=[ 67634], 90.00th=[ 82314], 95.00th=[ 99091], | 99.00th=[139461], 99.50th=[181404], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 63, max= 383, per=26.09%, avg=188.66, stdev=71.28, samples=62 iops : min= 3, max= 23, avg=11.03, stdev= 4.47, samples=62 write: IOPS=12, BW=197KiB/s (201kB/s)(6256KiB/31809msec); 0 zone resets clat (usec): min=1295, max=200039, avg=36566.63, stdev=35861.14 lat (usec): min=1296, max=200041, avg=36568.85, stdev=35861.24 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1827], 10.00th=[ 2704], 20.00th=[ 5276], | 30.00th=[ 9634], 40.00th=[ 17695], 50.00th=[ 28705], 60.00th=[ 35390], | 70.00th=[ 45351], 80.00th=[ 60556], 90.00th=[ 87557], 95.00th=[111674], | 99.00th=[164627], 99.50th=[185598], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 63, max= 415, per=25.97%, avg=197.65, stdev=75.54, samples=62 iops : min= 3, max= 25, avg=11.60, stdev= 4.69, samples=62 lat (usec) : 50=0.13%, 100=3.78%, 250=1.43%, 500=0.13%, 750=0.13% lat (msec) : 2=3.78%, 4=4.17%, 10=8.72%, 20=7.55%, 50=37.37% lat (msec) : 100=26.82%, 250=5.99% cpu : usr=0.07%, sys=5.72%, ctx=1688, 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=724KiB/s (741kB/s), 174KiB/s-193KiB/s (178kB/s-197kB/s), io=23.4MiB (24.5MB), run=31809-33094msec WRITE: bw=761KiB/s (780kB/s), 186KiB/s-199KiB/s (190kB/s-204kB/s), io=24.6MiB (25.8MB), run=31809-33094msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178521: Fri Aug 21 16:42:14 2026 read: IOPS=8, BW=130KiB/s (134kB/s)(5920KiB/45370msec) clat (msec): min=6, max=245, avg=45.41, stdev=38.94 lat (msec): min=6, max=245, avg=45.41, stdev=38.94 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 64], 90.00th=[ 101], 95.00th=[ 132], | 99.00th=[ 182], 99.50th=[ 236], 99.90th=[ 247], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 30, max= 509, per=25.00%, avg=131.76, stdev=91.36, samples=88 iops : min= 1, max= 31, avg= 7.48, stdev= 5.79, samples=88 write: IOPS=8, BW=140KiB/s (144kB/s)(6368KiB/45370msec); 0 zone resets clat (msec): min=12, max=272, avg=70.77, stdev=50.44 lat (msec): min=12, max=272, avg=70.78, stdev=50.44 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 66], | 70.00th=[ 79], 80.00th=[ 105], 90.00th=[ 148], 95.00th=[ 186], | 99.00th=[ 247], 99.50th=[ 257], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 404, per=25.57%, avg=141.92, stdev=89.37, samples=88 iops : min= 1, max= 25, avg= 8.12, stdev= 5.68, samples=88 lat (msec) : 10=0.39%, 20=13.67%, 50=44.01%, 100=25.78%, 250=15.76% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=1.84%, ctx=1257, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178523: Fri Aug 21 16:42:14 2026 read: IOPS=7, BW=128KiB/s (131kB/s)(5744KiB/44885msec) clat (msec): min=7, max=252, avg=44.47, stdev=37.51 lat (msec): min=7, max=252, avg=44.47, stdev=37.51 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 62], 90.00th=[ 96], 95.00th=[ 126], | 99.00th=[ 182], 99.50th=[ 243], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 21, max= 544, per=25.10%, avg=132.28, stdev=94.78, samples=85 iops : min= 1, max= 34, avg= 7.53, stdev= 6.08, samples=85 write: IOPS=9, BW=146KiB/s (149kB/s)(6544KiB/44885msec); 0 zone resets clat (msec): min=12, max=265, avg=69.85, stdev=44.49 lat (msec): min=12, max=265, avg=69.85, stdev=44.49 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 53], 60.00th=[ 65], | 70.00th=[ 83], 80.00th=[ 107], 90.00th=[ 132], 95.00th=[ 165], | 99.00th=[ 207], 99.50th=[ 226], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 415, per=26.24%, avg=145.64, stdev=83.82, samples=88 iops : min= 1, max= 25, avg= 8.36, stdev= 5.30, samples=88 lat (msec) : 10=0.52%, 20=10.94%, 50=46.35%, 100=26.04%, 250=15.89% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=1.68%, ctx=1193, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178525: Fri Aug 21 16:42:14 2026 read: IOPS=8, BW=140KiB/s (143kB/s)(6256KiB/44794msec) clat (msec): min=7, max=289, avg=46.50, stdev=40.37 lat (msec): min=7, max=289, avg=46.50, stdev=40.37 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 49], 80.00th=[ 69], 90.00th=[ 103], 95.00th=[ 131], | 99.00th=[ 188], 99.50th=[ 284], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 30, max= 416, per=26.56%, avg=139.97, stdev=97.68, samples=88 iops : min= 1, max= 26, avg= 8.00, stdev= 6.22, samples=88 write: IOPS=8, BW=135KiB/s (138kB/s)(6032KiB/44794msec); 0 zone resets clat (msec): min=18, max=227, avg=70.41, stdev=46.26 lat (msec): min=18, max=227, avg=70.43, stdev=46.25 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 46], 50.00th=[ 53], 60.00th=[ 66], | 70.00th=[ 79], 80.00th=[ 105], 90.00th=[ 144], 95.00th=[ 176], | 99.00th=[ 209], 99.50th=[ 224], 99.90th=[ 228], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 31, max= 404, per=24.49%, avg=135.92, stdev=78.28, samples=87 iops : min= 1, max= 25, avg= 7.76, stdev= 4.97, samples=87 lat (msec) : 10=0.78%, 20=11.46%, 50=45.96%, 100=25.91%, 250=15.63% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=1.75%, ctx=1258, 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=178526: Fri Aug 21 16:42:14 2026 read: IOPS=8, BW=134KiB/s (137kB/s)(6032KiB/44926msec) clat (msec): min=8, max=265, avg=49.33, stdev=41.59 lat (msec): min=8, max=265, avg=49.33, stdev=41.59 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 30], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 74], 90.00th=[ 110], 95.00th=[ 140], | 99.00th=[ 205], 99.50th=[ 245], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 383, per=25.97%, avg=136.85, stdev=84.33, samples=86 iops : min= 1, max= 23, avg= 7.80, stdev= 5.34, samples=86 write: IOPS=8, BW=139KiB/s (143kB/s)(6256KiB/44926msec); 0 zone resets clat (msec): min=13, max=255, avg=66.18, stdev=43.42 lat (msec): min=13, max=255, avg=66.18, stdev=43.42 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 52], 60.00th=[ 61], | 70.00th=[ 73], 80.00th=[ 93], 90.00th=[ 128], 95.00th=[ 165], | 99.00th=[ 205], 99.50th=[ 249], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 31, max= 480, per=25.43%, avg=141.16, stdev=83.47, samples=87 iops : min= 1, max= 30, avg= 8.08, stdev= 5.30, samples=87 lat (msec) : 10=0.91%, 20=9.11%, 50=48.05%, 100=27.21%, 250=14.45% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=1.82%, ctx=1214, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=528KiB/s (541kB/s), 128KiB/s-140KiB/s (131kB/s-143kB/s), io=23.4MiB (24.5MB), run=44794-45370msec WRITE: bw=555KiB/s (569kB/s), 135KiB/s-146KiB/s (138kB/s-149kB/s), io=24.6MiB (25.8MB), run=44794-45370msec 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=178540: Fri Aug 21 16:42:31 2026 read: IOPS=1, BW=1761KiB/s (1803kB/s)(7168KiB/4071msec) clat (msec): min=134, max=424, avg=219.66, stdev=98.44 lat (msec): min=134, max=424, avg=219.66, stdev=98.44 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 197], 60.00th=[ 203], | 70.00th=[ 203], 80.00th=[ 257], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 1477, max= 4079, per=75.77%, avg=2867.00, stdev=1357.75, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1258KiB/s (1288kB/s)(5120KiB/4071msec); 0 zone resets clat (msec): min=130, max=864, avg=448.89, stdev=346.07 lat (msec): min=131, max=864, avg=450.23, stdev=345.57 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 131], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 768], 80.00th=[ 768], 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= 1928, max= 3878, per=49.36%, avg=2615.00, stdev=1095.20, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=58.33%, 500=25.00%, 1000=16.67% cpu : usr=0.00%, sys=2.58%, ctx=60, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178541: Fri Aug 21 16:42:31 2026 read: IOPS=0, BW=422KiB/s (432kB/s)(2048KiB/4850msec) clat (msec): min=124, max=134, avg=129.68, stdev= 7.16 lat (msec): min=124, max=134, avg=129.68, stdev= 7.16 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 125], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 125], 60.00th=[ 136], | 70.00th=[ 136], 80.00th=[ 136], 90.00th=[ 136], 95.00th=[ 136], | 99.00th=[ 136], 99.50th=[ 136], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 1398, max= 1939, per=44.09%, avg=1668.50, stdev=382.54, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2111KiB/s (2162kB/s)(10.0MiB/4850msec); 0 zone resets clat (msec): min=115, max=835, avg=452.02, stdev=262.36 lat (msec): min=115, max=835, avg=452.16, stdev=262.33 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 255], | 30.00th=[ 262], 40.00th=[ 292], 50.00th=[ 309], 60.00th=[ 330], | 70.00th=[ 584], 80.00th=[ 751], 90.00th=[ 793], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1398, max= 4055, per=46.99%, avg=2489.29, stdev=1036.07, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 250=25.00%, 500=41.67%, 750=8.33%, 1000=25.00% cpu : usr=0.00%, sys=3.79%, ctx=82, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178542: Fri Aug 21 16:42:31 2026 read: IOPS=1, BW=1135KiB/s (1163kB/s)(6144KiB/5411msec) clat (msec): min=112, max=617, avg=239.69, stdev=188.54 lat (msec): min=112, max=617, avg=239.69, stdev=188.54 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 197], | 70.00th=[ 201], 80.00th=[ 201], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 2015, max= 3878, per=65.74%, avg=2487.75, stdev=926.86, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1135KiB/s (1163kB/s)(6144KiB/5411msec); 0 zone resets clat (msec): min=158, max=1163, avg=625.45, stdev=374.82 lat (msec): min=158, max=1163, avg=625.56, stdev=374.82 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 701], | 70.00th=[ 869], 80.00th=[ 869], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 1939, max= 3984, per=47.20%, avg=2500.50, stdev=990.16, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=50.00%, 500=8.33%, 750=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.68%, ctx=74, 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=178544: Fri Aug 21 16:42:31 2026 read: IOPS=1, BW=1103KiB/s (1130kB/s)(5120KiB/4641msec) clat (msec): min=89, max=835, avg=279.37, stdev=313.99 lat (msec): min=89, max=835, avg=279.37, stdev=313.99 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 90], | 30.00th=[ 107], 40.00th=[ 107], 50.00th=[ 163], 60.00th=[ 163], | 70.00th=[ 205], 80.00th=[ 205], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 1928, max= 2048, per=52.47%, avg=1985.50, stdev=60.82, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 write: IOPS=1, BW=1544KiB/s (1582kB/s)(7168KiB/4641msec); 0 zone resets clat (msec): min=113, max=939, avg=447.74, stdev=296.20 lat (msec): min=113, max=939, avg=447.85, stdev=296.21 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 153], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 468], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 676], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 1641, max= 2039, per=36.08%, avg=1911.50, stdev=185.76, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=16.67%, 1000=16.67% cpu : usr=0.02%, sys=3.53%, ctx=75, 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=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=3785KiB/s (3876kB/s), 422KiB/s-1761KiB/s (432kB/s-1803kB/s), io=20.0MiB (20.0MB), run=4071-5411msec WRITE: bw=5299KiB/s (5426kB/s), 1135KiB/s-2111KiB/s (1163kB/s-2162kB/s), io=28.0MiB (29.4MB), run=4071-5411msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178543: Fri Aug 21 16:42:31 2026 read: IOPS=1, BW=1638KiB/s (1677kB/s)(7168KiB/4377msec) clat (msec): min=176, max=431, avg=275.17, stdev=79.20 lat (msec): min=176, max=431, avg=275.17, stdev=79.20 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 232], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 255], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 296], 90.00th=[ 430], 95.00th=[ 430], | 99.00th=[ 430], 99.50th=[ 430], 99.90th=[ 430], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 1505, max= 4096, per=78.61%, avg=2919.75, stdev=1351.30, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=1, BW=1170KiB/s (1198kB/s)(5120KiB/4377msec); 0 zone resets clat (msec): min=211, max=658, avg=424.30, stdev=205.36 lat (msec): min=211, max=658, avg=424.72, stdev=204.95 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 211], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2035, max= 6095, per=65.19%, avg=3389.67, stdev=2342.89, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 250=41.67%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=8.39%, ctx=219, 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=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=178545: Fri Aug 21 16:42:31 2026 read: IOPS=0, BW=371KiB/s (380kB/s)(2048KiB/5513msec) clat (msec): min=83, max=188, avg=136.02, stdev=74.25 lat (msec): min=83, max=188, avg=136.02, stdev=74.25 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 84], | 30.00th=[ 84], 40.00th=[ 84], 50.00th=[ 84], 60.00th=[ 188], | 70.00th=[ 188], 80.00th=[ 188], 90.00th=[ 188], 95.00th=[ 188], | 99.00th=[ 188], 99.50th=[ 188], 99.90th=[ 188], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 1402, max= 2031, per=46.22%, avg=1716.50, stdev=444.77, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1857KiB/s (1902kB/s)(10.0MiB/5513msec); 0 zone resets clat (msec): min=153, max=1147, avg=514.97, stdev=349.40 lat (msec): min=153, max=1147, avg=515.19, stdev=349.30 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 188], | 30.00th=[ 236], 40.00th=[ 326], 50.00th=[ 359], 60.00th=[ 376], | 70.00th=[ 567], 80.00th=[ 894], 90.00th=[ 919], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 1402, max= 4055, per=42.97%, avg=2234.43, stdev=836.95, samples=7 iops : min= 1, max= 3, avg= 1.43, stdev= 0.79, samples=7 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=8.33%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=8.84%, ctx=128, 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=178546: Fri Aug 21 16:42:31 2026 read: IOPS=1, BW=1434KiB/s (1468kB/s)(6144KiB/4286msec) clat (usec): min=564, max=682887, avg=248783.59, stdev=251082.81 lat (usec): min=565, max=682888, avg=248784.76, stdev=251082.62 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[235930], 50.00th=[235930], 60.00th=[270533], | 70.00th=[304088], 80.00th=[304088], 90.00th=[683672], 95.00th=[683672], | 99.00th=[683672], 99.50th=[683672], 99.90th=[683672], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 2023, max= 2048, per=54.75%, avg=2033.60, stdev= 9.15, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1434KiB/s (1468kB/s)(6144KiB/4286msec); 0 zone resets clat (msec): min=142, max=1180, avg=437.73, stdev=384.44 lat (msec): min=142, max=1180, avg=437.81, stdev=384.44 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 268], 50.00th=[ 268], 60.00th=[ 300], | 70.00th=[ 514], 80.00th=[ 514], 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= 1738, max= 4071, per=45.83%, avg=2383.00, stdev=952.40, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (usec) : 750=16.67% lat (msec) : 250=25.00%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=9.33%, ctx=154, 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=178547: Fri Aug 21 16:42:31 2026 read: IOPS=1, BW=1035KiB/s (1060kB/s)(5120KiB/4946msec) clat (usec): min=666, max=603443, avg=202485.94, stdev=245295.46 lat (usec): min=667, max=603445, avg=202487.14, stdev=245295.72 clat percentiles (usec): | 1.00th=[ 668], 5.00th=[ 668], 10.00th=[ 668], 20.00th=[ 668], | 30.00th=[ 9765], 40.00th=[ 9765], 50.00th=[166724], 60.00th=[166724], | 70.00th=[231736], 80.00th=[231736], 90.00th=[599786], 95.00th=[599786], | 99.00th=[599786], 99.50th=[599786], 99.90th=[599786], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 2023, max= 4071, per=72.92%, avg=2708.33, stdev=1180.11, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1449KiB/s (1484kB/s)(7168KiB/4946msec); 0 zone resets clat (msec): min=106, max=994, avg=518.42, stdev=369.67 lat (msec): min=106, max=994, avg=518.51, stdev=369.67 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 190], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 355], 60.00th=[ 818], | 70.00th=[ 818], 80.00th=[ 894], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 1646, max= 2039, per=37.59%, avg=1954.80, stdev=172.68, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=8.33% lat (msec) : 10=8.33%, 250=33.33%, 500=16.67%, 750=8.33%, 1000=25.00% cpu : usr=0.00%, sys=8.19%, ctx=155, 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=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=3715KiB/s (3804kB/s), 371KiB/s-1638KiB/s (380kB/s-1677kB/s), io=20.0MiB (20.0MB), run=4286-5513msec WRITE: bw=5201KiB/s (5326kB/s), 1170KiB/s-1857KiB/s (1198kB/s-1902kB/s), io=28.0MiB (29.4MB), run=4286-5513msec 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=178557: Fri Aug 21 16:42:47 2026 read: IOPS=1, BW=4261KiB/s (4363kB/s)(12.0MiB/2884msec) clat (msec): min=840, max=942, avg=884.81, stdev=52.31 lat (msec): min=840, max=942, avg=884.81, stdev=52.31 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 869], 50.00th=[ 869], 60.00th=[ 869], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7728, max= 7968, per=100.00%, avg=7848.00, stdev=169.71, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=11.83%, ctx=398, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178558: Fri Aug 21 16:42:47 2026 read: IOPS=0, BW=1321KiB/s (1353kB/s)(4096KiB/3101msec) clat (nsec): min=1121.9M, max=1121.9M, avg=1121933555.00, stdev= 0.00 lat (nsec): min=1121.9M, max=1121.9M, avg=1121936202.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1116], 5.00th=[ 1116], 10.00th=[ 1116], 20.00th=[ 1116], | 30.00th=[ 1116], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1116], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2642KiB/s (2705kB/s)(8192KiB/3101msec); 0 zone resets clat (msec): min=734, max=1157, avg=945.86, stdev=298.61 lat (msec): min=734, max=1157, avg=946.25, stdev=298.85 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 1150], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7728, max= 7728, per=85.03%, avg=7728.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.68%, ctx=96, 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=178560: Fri Aug 21 16:42:47 2026 write: IOPS=0, BW=3409KiB/s (3490kB/s)(12.0MiB/3605msec); 0 zone resets clat (msec): min=300, max=1981, avg=1131.13, stdev=840.26 lat (msec): min=301, max=1985, avg=1132.78, stdev=842.22 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1116], | 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= 8094, max= 8094, per=89.05%, 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%, 2000=66.67% cpu : usr=0.00%, sys=4.13%, ctx=54, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=178561: Fri Aug 21 16:42:47 2026 write: IOPS=1, BW=4548KiB/s (4657kB/s)(12.0MiB/2702msec); 0 zone resets clat (msec): min=465, max=1407, avg=789.60, stdev=535.06 lat (msec): min=468, max=1407, avg=790.89, stdev=534.18 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 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= 8000, max= 8094, per=88.54%, avg=8047.00, stdev=66.47, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.18%, ctx=97, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5283KiB/s (5410kB/s), 1321KiB/s-4261KiB/s (1353kB/s-4363kB/s), io=16.0MiB (16.8MB), run=2884-3101msec WRITE: bw=9090KiB/s (9308kB/s), 2642KiB/s-4548KiB/s (2705kB/s-4657kB/s), io=32.0MiB (33.6MB), run=2702-3605msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178554: Fri Aug 21 16:42:47 2026 read: IOPS=0, BW=3921KiB/s (4015kB/s)(12.0MiB/3134msec) clat (msec): min=483, max=1696, avg=1014.28, stdev=620.76 lat (msec): min=483, max=1696, avg=1014.28, stdev=620.76 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7937, max= 8031, per=100.00%, avg=7984.00, stdev=66.47, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=2.68%, 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=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=178555: Fri Aug 21 16:42:47 2026 read: IOPS=0, BW=1023KiB/s (1048kB/s)(4096KiB/4004msec) clat (nsec): min=1299.9M, max=1299.9M, avg=1299899477.00, stdev= 0.00 lat (nsec): min=1299.9M, max=1299.9M, avg=1299902107.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1301], 5.00th=[ 1301], 10.00th=[ 1301], 20.00th=[ 1301], | 30.00th=[ 1301], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2046KiB/s (2095kB/s)(8192KiB/4004msec); 0 zone resets clat (msec): min=937, max=1417, avg=1177.78, stdev=339.45 lat (msec): min=938, max=1419, avg=1178.95, stdev=340.54 clat percentiles (msec): | 1.00th=[ 936], 5.00th=[ 936], 10.00th=[ 936], 20.00th=[ 936], | 30.00th=[ 936], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 1418], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7937, max= 7937, per=96.99%, avg=7937.00, 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=3.62%, ctx=65, 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=178556: Fri Aug 21 16:42:47 2026 write: IOPS=0, BW=3681KiB/s (3770kB/s)(12.0MiB/3338msec); 0 zone resets clat (msec): min=529, max=1824, avg=1067.79, stdev=674.56 lat (msec): min=530, max=1824, avg=1068.29, stdev=674.31 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7861, max= 8126, per=97.68%, avg=7993.50, stdev=187.38, 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=0.00%, sys=4.41%, ctx=79, 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=178559: Fri Aug 21 16:42:47 2026 write: IOPS=1, BW=4625KiB/s (4736kB/s)(12.0MiB/2657msec); 0 zone resets clat (msec): min=434, max=1583, avg=835.73, stdev=648.48 lat (msec): min=435, max=1584, avg=836.85, stdev=647.87 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] 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=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.97%, ctx=54, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4092KiB/s (4190kB/s), 1023KiB/s-3921KiB/s (1048kB/s-4015kB/s), io=16.0MiB (16.8MB), run=3134-4004msec WRITE: bw=8184KiB/s (8380kB/s), 2046KiB/s-4625KiB/s (2095kB/s-4736kB/s), io=32.0MiB (33.6MB), run=2657-4004msec