== sanity test 398b: DIO and buffer IO race ============== 07:19:17 (1756811957) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.38996 s, 14.8 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=152083: Tue Sep 2 07:20:33 2025 read: IOPS=23, BW=93.4KiB/s (95.6kB/s)(5992KiB/64185msec) clat (usec): min=89, max=912356, avg=21281.99, stdev=27625.40 lat (usec): min=89, max=912357, avg=21283.38, stdev=27625.46 clat percentiles (usec): | 1.00th=[ 169], 5.00th=[ 416], 10.00th=[ 7504], 20.00th=[ 11076], | 30.00th=[ 13173], 40.00th=[ 15401], 50.00th=[ 17433], 60.00th=[ 20841], | 70.00th=[ 24773], 80.00th=[ 30278], 90.00th=[ 36963], 95.00th=[ 44303], | 99.00th=[ 70779], 99.50th=[104334], 99.90th=[229639], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 15, max= 159, per=25.34%, avg=93.75, stdev=25.54, samples=126 iops : min= 3, max= 39, avg=22.99, stdev= 6.41, samples=126 write: IOPS=24, BW=98.1KiB/s (100kB/s)(6296KiB/64185msec); 0 zone resets clat (usec): min=835, max=151405, avg=20358.89, stdev=17569.23 lat (usec): min=836, max=151406, avg=20360.59, stdev=17569.05 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 2008], 10.00th=[ 2737], 20.00th=[ 4113], | 30.00th=[ 7046], 40.00th=[ 12387], 50.00th=[ 16909], 60.00th=[ 21365], | 70.00th=[ 26608], 80.00th=[ 33817], 90.00th=[ 42730], 95.00th=[ 51119], | 99.00th=[ 72877], 99.50th=[ 81265], 99.90th=[145753], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 40, max= 175, per=25.60%, avg=99.34, stdev=28.51, samples=125 iops : min= 10, max= 43, avg=24.40, stdev= 7.14, samples=125 lat (usec) : 100=0.03%, 250=0.75%, 500=2.15%, 750=0.81%, 1000=0.49% lat (msec) : 2=2.67%, 4=7.55%, 10=11.33%, 20=31.84%, 50=37.83% lat (msec) : 100=4.10%, 250=0.42%, 1000=0.03% cpu : usr=0.14%, sys=22.30%, ctx=7497, 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=152086: Tue Sep 2 07:20:33 2025 read: IOPS=22, BW=91.7KiB/s (93.9kB/s)(5940KiB/64784msec) clat (usec): min=69, max=186346, avg=21241.03, stdev=15110.79 lat (usec): min=69, max=186347, avg=21242.40, stdev=15110.60 clat percentiles (usec): | 1.00th=[ 186], 5.00th=[ 611], 10.00th=[ 8586], 20.00th=[ 11600], | 30.00th=[ 13698], 40.00th=[ 15795], 50.00th=[ 18482], 60.00th=[ 21365], | 70.00th=[ 25035], 80.00th=[ 29754], 90.00th=[ 37487], 95.00th=[ 43254], | 99.00th=[ 74974], 99.50th=[ 90702], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 7, max= 175, per=24.87%, avg=92.03, stdev=26.91, samples=128 iops : min= 1, max= 43, avg=22.56, stdev= 6.78, samples=128 write: IOPS=24, BW=97.0KiB/s (100kB/s)(6348KiB/64784msec); 0 zone resets clat (usec): min=625, max=901631, avg=20755.41, stdev=29109.45 lat (usec): min=626, max=901632, avg=20756.85, stdev=29109.49 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1876], 10.00th=[ 2573], 20.00th=[ 3982], | 30.00th=[ 6325], 40.00th=[ 11207], 50.00th=[ 16188], 60.00th=[ 20317], | 70.00th=[ 25822], 80.00th=[ 32637], 90.00th=[ 44827], 95.00th=[ 55313], | 99.00th=[ 81265], 99.50th=[104334], 99.90th=[179307], 99.95th=[901776], | 99.99th=[901776] bw ( KiB/s): min= 7, max= 294, per=25.37%, avg=98.45, stdev=33.66, samples=128 iops : min= 1, max= 73, avg=24.17, stdev= 8.46, samples=128 lat (usec) : 100=0.07%, 250=0.59%, 500=1.27%, 750=1.11%, 1000=0.59% lat (msec) : 2=2.96%, 4=7.39%, 10=12.57%, 20=30.60%, 50=37.70% lat (msec) : 100=4.75%, 250=0.39%, 1000=0.03% cpu : usr=0.14%, sys=22.34%, ctx=7555, 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=152088: Tue Sep 2 07:20:33 2025 read: IOPS=23, BW=93.9KiB/s (96.2kB/s)(6028KiB/64189msec) clat (usec): min=63, max=128881, avg=19676.43, stdev=13256.68 lat (usec): min=64, max=128882, avg=19677.88, stdev=13257.45 clat percentiles (usec): | 1.00th=[ 155], 5.00th=[ 379], 10.00th=[ 5997], 20.00th=[ 10814], | 30.00th=[ 12911], 40.00th=[ 15008], 50.00th=[ 17171], 60.00th=[ 20055], | 70.00th=[ 23725], 80.00th=[ 28443], 90.00th=[ 34866], 95.00th=[ 41157], | 99.00th=[ 64226], 99.50th=[ 85459], 99.90th=[104334], 99.95th=[128451], | 99.99th=[128451] bw ( KiB/s): min= 15, max= 175, per=25.39%, avg=93.93, stdev=28.65, samples=126 iops : min= 3, max= 43, avg=23.04, stdev= 7.14, samples=126 write: IOPS=24, BW=97.5KiB/s (99.9kB/s)(6260KiB/64189msec); 0 zone resets clat (usec): min=655, max=893265, avg=21896.39, stdev=29621.41 lat (usec): min=656, max=893267, avg=21898.04, stdev=29621.48 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1795], 10.00th=[ 2638], 20.00th=[ 4228], | 30.00th=[ 7373], 40.00th=[ 12518], 50.00th=[ 16909], 60.00th=[ 21627], | 70.00th=[ 27132], 80.00th=[ 34866], 90.00th=[ 46400], 95.00th=[ 57410], | 99.00th=[ 86508], 99.50th=[126354], 99.90th=[170918], 99.95th=[893387], | 99.99th=[893387] bw ( KiB/s): min= 22, max= 160, per=25.07%, avg=97.29, stdev=25.99, samples=126 iops : min= 5, max= 40, avg=23.88, stdev= 6.53, samples=126 lat (usec) : 100=0.10%, 250=1.04%, 500=2.21%, 750=0.88%, 1000=0.55% lat (msec) : 2=2.99%, 4=6.71%, 10=11.78%, 20=31.90%, 50=36.82% lat (msec) : 100=4.62%, 250=0.36%, 1000=0.03% cpu : usr=0.13%, sys=22.18%, ctx=7647, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152090: Tue Sep 2 07:20:33 2025 read: IOPS=23, BW=94.0KiB/s (96.3kB/s)(6052KiB/64366msec) clat (usec): min=107, max=134859, avg=20296.94, stdev=13677.38 lat (usec): min=108, max=134861, avg=20298.66, stdev=13677.23 clat percentiles (usec): | 1.00th=[ 172], 5.00th=[ 474], 10.00th=[ 7308], 20.00th=[ 10945], | 30.00th=[ 13042], 40.00th=[ 15139], 50.00th=[ 17957], 60.00th=[ 20841], | 70.00th=[ 24773], 80.00th=[ 29230], 90.00th=[ 36439], 95.00th=[ 43254], | 99.00th=[ 60556], 99.50th=[ 66323], 99.90th=[129500], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 23, max= 176, per=25.66%, avg=94.94, stdev=27.89, samples=126 iops : min= 5, max= 44, avg=23.30, stdev= 7.06, samples=126 write: IOPS=24, BW=96.9KiB/s (99.2kB/s)(6236KiB/64366msec); 0 zone resets clat (usec): min=772, max=1016.1k, avg=21416.03, stdev=31724.46 lat (usec): min=773, max=1016.1k, avg=21420.59, stdev=31722.93 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1844], 10.00th=[ 2737], | 20.00th=[ 3982], 30.00th=[ 6259], 40.00th=[ 11207], | 50.00th=[ 16581], 60.00th=[ 21365], 70.00th=[ 27132], | 80.00th=[ 33817], 90.00th=[ 45876], 95.00th=[ 56361], | 99.00th=[ 82314], 99.50th=[ 96994], 99.90th=[ 210764], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 39, max= 183, per=25.19%, avg=97.75, stdev=27.75, samples=126 iops : min= 9, max= 45, avg=24.00, stdev= 6.94, samples=126 lat (usec) : 250=0.94%, 500=1.66%, 750=1.01%, 1000=0.81% lat (msec) : 2=2.86%, 4=7.42%, 10=12.43%, 20=29.72%, 50=37.92% lat (msec) : 100=4.82%, 250=0.36%, 2000=0.03% cpu : usr=0.11%, sys=22.19%, ctx=7615, 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=371KiB/s (380kB/s), 91.7KiB/s-94.0KiB/s (93.9kB/s-96.3kB/s), io=23.4MiB (24.6MB), run=64185-64784msec WRITE: bw=388KiB/s (397kB/s), 96.9KiB/s-98.1KiB/s (99.2kB/s-100kB/s), io=24.6MiB (25.7MB), run=64185-64784msec rand-rw: (groupid=0, jobs=1): err= 0: pid=152084: Tue Sep 2 07:21:22 2025 read: IOPS=13, BW=52.8KiB/s (54.0kB/s)(5992KiB/113569msec) clat (msec): min=3, max=922, avg=18.71, stdev=29.28 lat (msec): min=3, max=922, avg=18.71, stdev=29.28 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 10], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 37], 95.00th=[ 52], | 99.00th=[ 92], 99.50th=[ 108], 99.90th=[ 205], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 151, per=25.63%, avg=53.57, stdev=32.89, samples=221 iops : min= 1, max= 37, avg=13.03, stdev= 8.28, samples=221 write: IOPS=13, BW=55.4KiB/s (56.8kB/s)(6296KiB/113569msec); 0 zone resets clat (msec): min=16, max=305, avg=54.18, stdev=29.08 lat (msec): min=16, max=305, avg=54.19, stdev=29.08 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 36], 40.00th=[ 40], 50.00th=[ 45], 60.00th=[ 52], | 70.00th=[ 62], 80.00th=[ 77], 90.00th=[ 94], 95.00th=[ 109], | 99.00th=[ 148], 99.50th=[ 182], 99.90th=[ 205], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 15, max= 119, per=25.34%, avg=55.50, stdev=26.12, samples=224 iops : min= 3, max= 29, avg=13.50, stdev= 6.60, samples=224 lat (msec) : 4=0.49%, 10=19.73%, 20=14.62%, 50=41.34%, 100=19.82% lat (msec) : 250=3.94%, 500=0.03%, 1000=0.03% cpu : usr=0.09%, sys=5.88%, ctx=4136, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152085: Tue Sep 2 07:21:22 2025 read: IOPS=12, BW=51.9KiB/s (53.2kB/s)(5940KiB/114400msec) clat (msec): min=2, max=926, avg=18.94, stdev=29.04 lat (msec): min=2, max=926, avg=18.94, stdev=29.04 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 41], 95.00th=[ 53], | 99.00th=[ 80], 99.50th=[ 91], 99.90th=[ 232], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 152, per=25.23%, avg=52.73, stdev=33.10, samples=223 iops : min= 1, max= 38, avg=12.82, stdev= 8.35, samples=223 write: IOPS=13, BW=55.5KiB/s (56.8kB/s)(6348KiB/114400msec); 0 zone resets clat (msec): min=15, max=259, avg=54.21, stdev=30.11 lat (msec): min=15, max=259, avg=54.21, stdev=30.10 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 24], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 35], 40.00th=[ 40], 50.00th=[ 45], 60.00th=[ 52], | 70.00th=[ 62], 80.00th=[ 77], 90.00th=[ 96], 95.00th=[ 112], | 99.00th=[ 159], 99.50th=[ 190], 99.90th=[ 234], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 15, max= 168, per=25.39%, avg=55.61, stdev=27.42, samples=226 iops : min= 3, max= 42, avg=13.54, stdev= 6.94, samples=226 lat (msec) : 4=0.62%, 10=18.88%, 20=15.36%, 50=40.89%, 100=19.66% lat (msec) : 250=4.52%, 500=0.03%, 1000=0.03% cpu : usr=0.09%, sys=5.89%, ctx=4181, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152087: Tue Sep 2 07:21:22 2025 read: IOPS=13, BW=52.9KiB/s (54.2kB/s)(6028KiB/113861msec) clat (msec): min=3, max=200, avg=19.01, stdev=18.52 lat (msec): min=3, max=200, avg=19.02, stdev=18.52 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 21], 80.00th=[ 26], 90.00th=[ 40], 95.00th=[ 53], | 99.00th=[ 86], 99.50th=[ 124], 99.90th=[ 192], 99.95th=[ 201], | 99.99th=[ 201] bw ( KiB/s): min= 7, max= 152, per=25.40%, avg=53.08, stdev=32.10, samples=225 iops : min= 1, max= 38, avg=12.90, stdev= 8.10, samples=225 write: IOPS=13, BW=54.0KiB/s (56.3kB/s)(6260KiB/113861msec); 0 zone resets clat (msec): min=15, max=958, avg=54.28, stdev=36.72 lat (msec): min=15, max=958, avg=54.28, stdev=36.72 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 35], 40.00th=[ 40], 50.00th=[ 44], 60.00th=[ 51], | 70.00th=[ 62], 80.00th=[ 75], 90.00th=[ 93], 95.00th=[ 108], | 99.00th=[ 153], 99.50th=[ 180], 99.90th=[ 300], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8, max= 112, per=25.16%, avg=55.11, stdev=26.77, samples=225 iops : min= 2, max= 28, avg=13.41, stdev= 6.77, samples=225 lat (msec) : 4=0.29%, 10=18.72%, 20=15.04%, 50=42.25%, 100=19.37% lat (msec) : 250=4.26%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.96%, ctx=4184, 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=152089: Tue Sep 2 07:21:22 2025 read: IOPS=13, BW=53.5KiB/s (54.8kB/s)(6052KiB/113189msec) clat (msec): min=3, max=148, avg=17.97, stdev=16.55 lat (msec): min=3, max=148, avg=17.97, stdev=16.55 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 25], 90.00th=[ 38], 95.00th=[ 52], | 99.00th=[ 82], 99.50th=[ 100], 99.90th=[ 146], 99.95th=[ 148], | 99.99th=[ 148] bw ( KiB/s): min= 7, max= 168, per=26.00%, avg=54.34, stdev=33.13, samples=220 iops : min= 1, max= 42, avg=13.21, stdev= 8.33, samples=220 write: IOPS=13, BW=55.1KiB/s (56.4kB/s)(6236KiB/113189msec); 0 zone resets clat (msec): min=17, max=998, avg=55.00, stdev=38.11 lat (msec): min=17, max=998, avg=55.00, stdev=38.11 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 32], | 30.00th=[ 36], 40.00th=[ 41], 50.00th=[ 45], 60.00th=[ 52], | 70.00th=[ 63], 80.00th=[ 77], 90.00th=[ 96], 95.00th=[ 108], | 99.00th=[ 146], 99.50th=[ 184], 99.90th=[ 321], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 15, max= 120, per=25.19%, avg=55.17, stdev=26.29, samples=223 iops : min= 3, max= 30, avg=13.42, stdev= 6.64, samples=223 lat (msec) : 4=0.49%, 10=19.27%, 20=15.92%, 50=40.43%, 100=19.92% lat (msec) : 250=3.84%, 500=0.10%, 1000=0.03% cpu : usr=0.09%, sys=5.96%, ctx=4149, 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=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=210KiB/s (215kB/s), 51.9KiB/s-53.5KiB/s (53.2kB/s-54.8kB/s), io=23.4MiB (24.6MB), run=113189-114400msec WRITE: bw=220KiB/s (225kB/s), 54.0KiB/s-55.5KiB/s (56.3kB/s-56.8kB/s), io=24.6MiB (25.7MB), run=113189-114400msec 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=152122: Tue Sep 2 07:21:42 2025 read: IOPS=28, BW=462KiB/s (474kB/s)(5920KiB/12802msec) clat (usec): min=128, max=71042, avg=16110.40, stdev=11910.79 lat (usec): min=129, max=71044, avg=16111.35, stdev=11910.82 clat percentiles (usec): | 1.00th=[ 153], 5.00th=[ 302], 10.00th=[ 383], 20.00th=[ 603], | 30.00th=[10552], 40.00th=[13042], 50.00th=[15926], 60.00th=[18482], | 70.00th=[21365], 80.00th=[25560], 90.00th=[30802], 95.00th=[36439], | 99.00th=[45876], 99.50th=[53216], 99.90th=[70779], 99.95th=[70779], | 99.99th=[70779] bw ( KiB/s): min= 223, max= 793, per=25.26%, avg=461.28, stdev=122.82, samples=25 iops : min= 13, max= 49, avg=28.32, stdev= 7.79, samples=25 write: IOPS=31, BW=497KiB/s (509kB/s)(6368KiB/12802msec); 0 zone resets clat (usec): min=1488, max=152938, avg=17024.39, stdev=16125.82 lat (usec): min=1490, max=152939, avg=17026.16, stdev=16125.82 clat percentiles (usec): | 1.00th=[ 1844], 5.00th=[ 2802], 10.00th=[ 3785], 20.00th=[ 4883], | 30.00th=[ 6128], 40.00th=[ 8094], 50.00th=[ 12911], 60.00th=[ 16712], | 70.00th=[ 20317], 80.00th=[ 26870], 90.00th=[ 34341], 95.00th=[ 46400], | 99.00th=[ 78119], 99.50th=[ 95945], 99.90th=[152044], 99.95th=[152044], | 99.99th=[152044] bw ( KiB/s): min= 318, max= 704, per=25.99%, avg=499.32, stdev=96.85, samples=25 iops : min= 19, max= 44, avg=30.68, stdev= 6.19, samples=25 lat (usec) : 250=1.69%, 500=6.64%, 750=2.47%, 1000=0.13% lat (msec) : 2=1.04%, 4=5.34%, 10=18.75%, 20=30.86%, 50=30.86% lat (msec) : 100=2.08%, 250=0.13% cpu : usr=0.12%, sys=29.14%, ctx=2111, 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=152123: Tue Sep 2 07:21:42 2025 read: IOPS=27, BW=438KiB/s (448kB/s)(5744KiB/13116msec) clat (usec): min=122, max=68163, avg=18020.96, stdev=11568.43 lat (usec): min=123, max=68164, avg=18021.99, stdev=11568.45 clat percentiles (usec): | 1.00th=[ 128], 5.00th=[ 367], 10.00th=[ 570], 20.00th=[11076], | 30.00th=[13042], 40.00th=[14615], 50.00th=[17171], 60.00th=[19268], | 70.00th=[22938], 80.00th=[25297], 90.00th=[30540], 95.00th=[37487], | 99.00th=[62653], 99.50th=[67634], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 223, max= 638, per=23.92%, avg=436.80, stdev=105.47, samples=25 iops : min= 13, max= 39, avg=26.76, stdev= 6.64, samples=25 write: IOPS=31, BW=499KiB/s (511kB/s)(6544KiB/13116msec); 0 zone resets clat (usec): min=930, max=112434, avg=16044.92, stdev=14235.85 lat (usec): min=932, max=112435, avg=16049.12, stdev=14236.98 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 2868], 10.00th=[ 3818], 20.00th=[ 5211], | 30.00th=[ 6652], 40.00th=[ 8979], 50.00th=[ 12125], 60.00th=[ 14877], | 70.00th=[ 18482], 80.00th=[ 25035], 90.00th=[ 34341], 95.00th=[ 41681], | 99.00th=[ 66323], 99.50th=[ 79168], 99.90th=[112722], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 288, max= 672, per=25.39%, avg=487.72, stdev=95.82, samples=25 iops : min= 18, max= 42, avg=29.96, stdev= 5.93, samples=25 lat (usec) : 250=1.30%, 500=3.12%, 750=0.91%, 1000=0.78% lat (msec) : 2=1.95%, 4=4.17%, 10=18.75%, 20=37.76%, 50=29.56% lat (msec) : 100=1.43%, 250=0.26% cpu : usr=0.12%, sys=29.48%, ctx=2101, 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=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=152124: Tue Sep 2 07:21:42 2025 read: IOPS=30, BW=490KiB/s (502kB/s)(6256KiB/12763msec) clat (usec): min=126, max=52982, avg=16479.67, stdev=10534.87 lat (usec): min=127, max=52983, avg=16481.28, stdev=10535.55 clat percentiles (usec): | 1.00th=[ 145], 5.00th=[ 302], 10.00th=[ 400], 20.00th=[ 8455], | 30.00th=[12125], 40.00th=[14484], 50.00th=[16188], 60.00th=[19268], | 70.00th=[22152], 80.00th=[24773], 90.00th=[29754], 95.00th=[33817], | 99.00th=[40109], 99.50th=[48497], 99.90th=[53216], 99.95th=[53216], | 99.99th=[53216] bw ( KiB/s): min= 224, max= 832, per=27.05%, avg=493.96, stdev=142.18, samples=25 iops : min= 14, max= 52, avg=30.36, stdev= 8.80, samples=25 write: IOPS=29, BW=473KiB/s (484kB/s)(6032KiB/12763msec); 0 zone resets clat (usec): min=1150, max=123979, avg=16643.12, stdev=15724.59 lat (usec): min=1152, max=123981, avg=16644.85, stdev=15724.62 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 2638], 10.00th=[ 3687], 20.00th=[ 5080], | 30.00th=[ 6325], 40.00th=[ 8356], 50.00th=[ 12649], 60.00th=[ 15270], | 70.00th=[ 19530], 80.00th=[ 26608], 90.00th=[ 35914], 95.00th=[ 44827], | 99.00th=[ 70779], 99.50th=[108528], 99.90th=[124257], 99.95th=[124257], | 99.99th=[124257] bw ( KiB/s): min= 223, max= 640, per=24.40%, avg=468.80, stdev=125.37, samples=25 iops : min= 13, max= 40, avg=28.76, stdev= 7.98, samples=25 lat (usec) : 250=1.30%, 500=5.34%, 750=2.60%, 1000=0.52% lat (msec) : 2=1.56%, 4=4.82%, 10=17.32%, 20=33.33%, 50=31.25% lat (msec) : 100=1.69%, 250=0.26% cpu : usr=0.16%, sys=29.10%, ctx=2091, 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=152125: Tue Sep 2 07:21:42 2025 read: IOPS=29, BW=471KiB/s (482kB/s)(6032KiB/12804msec) clat (usec): min=111, max=139015, avg=17323.66, stdev=13585.17 lat (usec): min=111, max=139016, avg=17324.66, stdev=13585.16 clat percentiles (usec): | 1.00th=[ 133], 5.00th=[ 318], 10.00th=[ 404], 20.00th=[ 1221], | 30.00th=[ 12387], 40.00th=[ 14877], 50.00th=[ 16909], 60.00th=[ 19006], | 70.00th=[ 21365], 80.00th=[ 26346], 90.00th=[ 31589], 95.00th=[ 37487], | 99.00th=[ 64750], 99.50th=[ 83362], 99.90th=[139461], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 286, max= 704, per=25.74%, avg=470.04, stdev=94.31, samples=25 iops : min= 17, max= 44, avg=28.84, stdev= 6.03, samples=25 write: IOPS=30, BW=489KiB/s (500kB/s)(6256KiB/12804msec); 0 zone resets clat (usec): min=1206, max=106973, avg=15882.46, stdev=14035.96 lat (usec): min=1208, max=106975, avg=15884.11, stdev=14035.99 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 3130], 10.00th=[ 4015], 20.00th=[ 5014], | 30.00th=[ 5997], 40.00th=[ 8094], 50.00th=[ 11076], 60.00th=[ 14615], | 70.00th=[ 19268], 80.00th=[ 25822], 90.00th=[ 35390], 95.00th=[ 45876], | 99.00th=[ 64226], 99.50th=[ 74974], 99.90th=[107480], 99.95th=[107480], | 99.99th=[107480] bw ( KiB/s): min= 318, max= 796, per=25.49%, avg=489.60, stdev=115.67, samples=25 iops : min= 19, max= 49, avg=30.08, stdev= 7.27, samples=25 lat (usec) : 250=1.04%, 500=5.47%, 750=2.08%, 1000=1.17% lat (msec) : 2=0.91%, 4=4.56%, 10=19.66%, 20=33.46%, 50=29.82% lat (msec) : 100=1.56%, 250=0.26% cpu : usr=0.12%, sys=29.80%, ctx=2040, 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=1826KiB/s (1870kB/s), 438KiB/s-490KiB/s (448kB/s-502kB/s), io=23.4MiB (24.5MB), run=12763-13116msec WRITE: bw=1921KiB/s (1967kB/s), 473KiB/s-499KiB/s (484kB/s-511kB/s), io=24.6MiB (25.8MB), run=12763-13116msec rand-rw: (groupid=0, jobs=1): err= 0: pid=152127: Tue Sep 2 07:21:57 2025 read: IOPS=13, BW=210KiB/s (215kB/s)(5920KiB/28178msec) clat (msec): min=4, max=117, avg=17.76, stdev=15.77 lat (msec): min=4, max=117, avg=17.77, stdev=15.77 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 15], | 70.00th=[ 18], 80.00th=[ 25], 90.00th=[ 36], 95.00th=[ 54], | 99.00th=[ 74], 99.50th=[ 108], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 32, max= 480, per=25.06%, avg=210.29, stdev=94.50, samples=56 iops : min= 2, max= 30, avg=12.73, stdev= 6.00, samples=56 write: IOPS=14, BW=226KiB/s (231kB/s)(6368KiB/28178msec); 0 zone resets clat (msec): min=20, max=163, avg=54.21, stdev=21.34 lat (msec): min=20, max=163, avg=54.21, stdev=21.34 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 29], 10.00th=[ 33], 20.00th=[ 38], | 30.00th=[ 42], 40.00th=[ 46], 50.00th=[ 51], 60.00th=[ 55], | 70.00th=[ 61], 80.00th=[ 68], 90.00th=[ 83], 95.00th=[ 100], | 99.00th=[ 124], 99.50th=[ 148], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 95, max= 352, per=25.58%, avg=225.89, stdev=79.03, samples=56 iops : min= 5, max= 22, avg=13.70, stdev= 5.08, samples=56 lat (msec) : 10=18.10%, 20=16.93%, 50=35.29%, 100=26.95%, 250=2.73% cpu : usr=0.06%, sys=6.27%, ctx=1062, 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=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=152128: Tue Sep 2 07:21:57 2025 read: IOPS=12, BW=201KiB/s (206kB/s)(5744KiB/28520msec) clat (msec): min=4, max=120, avg=16.55, stdev=14.97 lat (msec): min=4, max=120, avg=16.55, stdev=14.97 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 23], 90.00th=[ 34], 95.00th=[ 48], | 99.00th=[ 84], 99.50th=[ 101], 99.90th=[ 122], 99.95th=[ 122], | 99.99th=[ 122] bw ( KiB/s): min= 31, max= 480, per=24.32%, avg=204.07, stdev=115.43, samples=55 iops : min= 1, max= 30, avg=12.33, stdev= 7.32, samples=55 write: IOPS=14, BW=229KiB/s (235kB/s)(6544KiB/28520msec); 0 zone resets clat (msec): min=20, max=163, avg=54.96, stdev=23.87 lat (msec): min=20, max=163, avg=54.96, stdev=23.87 clat percentiles (msec): | 1.00th=[ 25], 5.00th=[ 28], 10.00th=[ 32], 20.00th=[ 37], | 30.00th=[ 42], 40.00th=[ 46], 50.00th=[ 50], 60.00th=[ 54], | 70.00th=[ 61], 80.00th=[ 68], 90.00th=[ 89], 95.00th=[ 106], | 99.00th=[ 138], 99.50th=[ 148], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 95, max= 384, per=25.63%, avg=226.32, stdev=76.11, samples=56 iops : min= 5, max= 24, avg=13.73, stdev= 4.85, samples=56 lat (msec) : 10=19.40%, 20=16.80%, 50=35.81%, 100=24.48%, 250=3.52% cpu : usr=0.11%, sys=6.08%, ctx=1072, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152129: Tue Sep 2 07:21:57 2025 read: IOPS=14, BW=229KiB/s (234kB/s)(6256KiB/27342msec) clat (msec): min=3, max=103, avg=17.12, stdev=15.36 lat (msec): min=3, max=103, avg=17.12, stdev=15.36 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 23], 90.00th=[ 33], 95.00th=[ 50], | 99.00th=[ 87], 99.50th=[ 92], 99.90th=[ 104], 99.95th=[ 104], | 99.99th=[ 104] bw ( KiB/s): min= 63, max= 672, per=27.40%, avg=229.93, stdev=127.92, samples=54 iops : min= 3, max= 42, avg=13.94, stdev= 8.01, samples=54 write: IOPS=13, BW=221KiB/s (226kB/s)(6032KiB/27342msec); 0 zone resets clat (msec): min=24, max=161, avg=54.49, stdev=21.59 lat (msec): min=24, max=161, avg=54.50, stdev=21.59 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 30], 10.00th=[ 34], 20.00th=[ 38], | 30.00th=[ 42], 40.00th=[ 46], 50.00th=[ 50], 60.00th=[ 55], | 70.00th=[ 59], 80.00th=[ 69], 90.00th=[ 84], 95.00th=[ 99], | 99.00th=[ 134], 99.50th=[ 140], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 127, max= 320, per=24.91%, avg=219.93, stdev=73.97, samples=54 iops : min= 7, max= 20, avg=13.31, stdev= 4.69, samples=54 lat (msec) : 4=0.13%, 10=19.92%, 20=17.84%, 50=35.42%, 100=24.35% lat (msec) : 250=2.34% cpu : usr=0.10%, sys=6.35%, ctx=1076, 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=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=152130: Tue Sep 2 07:21:57 2025 read: IOPS=13, BW=217KiB/s (222kB/s)(6032KiB/27819msec) clat (msec): min=4, max=123, avg=17.20, stdev=16.02 lat (msec): min=4, max=123, avg=17.20, stdev=16.02 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 17], 80.00th=[ 22], 90.00th=[ 34], 95.00th=[ 51], | 99.00th=[ 90], 99.50th=[ 115], 99.90th=[ 124], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 63, max= 448, per=25.75%, avg=216.02, stdev=108.36, samples=55 iops : min= 3, max= 28, avg=13.07, stdev= 6.86, samples=55 write: IOPS=14, BW=225KiB/s (230kB/s)(6256KiB/27819msec); 0 zone resets clat (msec): min=19, max=162, avg=54.31, stdev=21.99 lat (msec): min=19, max=162, avg=54.31, stdev=21.99 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 30], 10.00th=[ 33], 20.00th=[ 37], | 30.00th=[ 42], 40.00th=[ 45], 50.00th=[ 50], 60.00th=[ 55], | 70.00th=[ 60], 80.00th=[ 69], 90.00th=[ 81], 95.00th=[ 95], | 99.00th=[ 144], 99.50th=[ 150], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 95, max= 352, per=25.50%, avg=225.15, stdev=75.12, samples=55 iops : min= 5, max= 22, avg=13.64, stdev= 4.80, samples=55 lat (msec) : 10=18.23%, 20=20.05%, 50=34.64%, 100=24.61%, 250=2.47% cpu : usr=0.14%, sys=6.27%, ctx=1062, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=840KiB/s (860kB/s), 201KiB/s-229KiB/s (206kB/s-234kB/s), io=23.4MiB (24.5MB), run=27342-28520msec WRITE: bw=884KiB/s (905kB/s), 221KiB/s-229KiB/s (226kB/s-235kB/s), io=24.6MiB (25.8MB), run=27342-28520msec 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=152141: Tue Sep 2 07:22:07 2025 read: IOPS=1, BW=2028KiB/s (2077kB/s)(7168KiB/3534msec) clat (msec): min=45, max=255, avg=141.43, stdev=78.27 lat (msec): min=45, max=255, avg=141.43, stdev=78.27 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 45], 10.00th=[ 45], 20.00th=[ 72], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 113], 60.00th=[ 194], | 70.00th=[ 194], 80.00th=[ 209], 90.00th=[ 255], 95.00th=[ 255], | 99.00th=[ 255], 99.50th=[ 255], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 2003, max= 5094, per=54.23%, avg=3048.33, stdev=1771.74, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 write: IOPS=1, BW=1449KiB/s (1484kB/s)(5120KiB/3534msec); 0 zone resets clat (msec): min=138, max=1005, avg=501.62, stdev=317.62 lat (msec): min=138, max=1005, avg=501.69, stdev=317.62 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 2048, max= 4096, per=34.70%, avg=2730.67, stdev=1182.41, samples=3 iops : min= 2, max= 4, avg= 2.67, stdev= 1.15, samples=3 lat (msec) : 50=8.33%, 100=8.33%, 250=41.67%, 500=25.00%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=12.65%, ctx=280, 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=152142: Tue Sep 2 07:22:07 2025 read: IOPS=0, BW=562KiB/s (576kB/s)(2048KiB/3643msec) clat (msec): min=43, max=222, avg=132.85, stdev=126.98 lat (msec): min=43, max=222, avg=132.86, stdev=126.98 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 44], 10.00th=[ 44], 20.00th=[ 44], | 30.00th=[ 44], 40.00th=[ 44], 50.00th=[ 44], 60.00th=[ 224], | 70.00th=[ 224], 80.00th=[ 224], 90.00th=[ 224], 95.00th=[ 224], | 99.00th=[ 224], 99.50th=[ 224], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 1698, max= 2048, per=33.32%, avg=1873.00, stdev=247.49, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2811KiB/s (2878kB/s)(10.0MiB/3643msec); 0 zone resets clat (msec): min=84, max=1101, avg=335.92, stdev=317.63 lat (msec): min=84, max=1101, avg=336.04, stdev=317.62 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 115], | 30.00th=[ 138], 40.00th=[ 169], 50.00th=[ 207], 60.00th=[ 232], | 70.00th=[ 317], 80.00th=[ 326], 90.00th=[ 676], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 1698, max= 6144, per=45.91%, avg=3613.00, stdev=1800.89, samples=5 iops : min= 1, max= 6, avg= 3.20, stdev= 1.92, samples=5 lat (msec) : 50=8.33%, 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.03%, sys=14.17%, ctx=212, 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=152143: Tue Sep 2 07:22:07 2025 read: IOPS=2, BW=2108KiB/s (2158kB/s)(6144KiB/2915msec) clat (msec): min=58, max=806, avg=254.48, stdev=275.88 lat (msec): min=58, max=806, avg=254.48, stdev=275.88 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 148], 50.00th=[ 148], 60.00th=[ 171], | 70.00th=[ 226], 80.00th=[ 226], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 2048, max= 4079, per=60.10%, avg=3378.00, stdev=1152.38, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=2, BW=2108KiB/s (2158kB/s)(6144KiB/2915msec); 0 zone resets clat (msec): min=70, max=432, avg=224.31, stdev=164.07 lat (msec): min=70, max=432, avg=224.40, stdev=164.05 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 82], | 30.00th=[ 82], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 180], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 2048, max= 4079, per=40.33%, avg=3174.33, stdev=1033.49, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 lat (msec) : 100=25.00%, 250=50.00%, 500=16.67%, 1000=8.33% cpu : usr=0.00%, sys=13.14%, ctx=103, 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=152144: Tue Sep 2 07:22:07 2025 read: IOPS=1, BW=2036KiB/s (2085kB/s)(5120KiB/2515msec) clat (msec): min=90, max=241, avg=179.63, stdev=64.14 lat (msec): min=90, max=241, avg=179.63, stdev=64.14 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 90], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 184], 60.00th=[ 184], | 70.00th=[ 239], 80.00th=[ 239], 90.00th=[ 243], 95.00th=[ 243], | 99.00th=[ 243], 99.50th=[ 243], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 2003, max= 6144, per=72.47%, avg=4073.50, stdev=2928.13, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=2, BW=2850KiB/s (2919kB/s)(7168KiB/2515msec); 0 zone resets clat (msec): min=74, max=629, avg=226.17, stdev=197.18 lat (msec): min=74, max=629, avg=226.24, stdev=197.17 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 116], | 30.00th=[ 127], 40.00th=[ 127], 50.00th=[ 136], 60.00th=[ 163], | 70.00th=[ 163], 80.00th=[ 338], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 3390, max= 4079, per=47.45%, avg=3734.50, stdev=487.20, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 lat (msec) : 100=16.67%, 250=66.67%, 500=8.33%, 750=8.33% cpu : usr=0.04%, sys=14.84%, ctx=73, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5622KiB/s (5757kB/s), 562KiB/s-2108KiB/s (576kB/s-2158kB/s), io=20.0MiB (20.0MB), run=2515-3643msec WRITE: bw=7870KiB/s (8059kB/s), 1449KiB/s-2850KiB/s (1484kB/s-2919kB/s), io=28.0MiB (29.4MB), run=2515-3643msec rand-rw: (groupid=0, jobs=1): err= 0: pid=152146: Tue Sep 2 07:22:08 2025 read: IOPS=2, BW=2511KiB/s (2571kB/s)(7168KiB/2855msec) clat (usec): min=920, max=270833, avg=108087.34, stdev=109355.36 lat (usec): min=921, max=270834, avg=108088.56, stdev=109355.47 clat percentiles (usec): | 1.00th=[ 922], 5.00th=[ 922], 10.00th=[ 922], 20.00th=[ 930], | 30.00th=[ 1037], 40.00th=[ 1037], 50.00th=[123208], 60.00th=[168821], | 70.00th=[168821], 80.00th=[191890], 90.00th=[270533], 95.00th=[270533], | 99.00th=[270533], 99.50th=[270533], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 2048, max= 5111, per=65.75%, avg=3751.67, stdev=1560.26, samples=3 iops : min= 2, max= 4, avg= 3.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1793KiB/s (1836kB/s)(5120KiB/2855msec); 0 zone resets clat (msec): min=283, max=763, avg=413.90, stdev=199.22 lat (msec): min=283, max=763, avg=413.95, stdev=199.22 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 2039, max= 4096, per=34.15%, avg=2727.67, stdev=1185.02, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (usec) : 1000=16.67% lat (msec) : 2=8.33%, 250=25.00%, 500=41.67%, 1000=8.33% cpu : usr=0.00%, sys=35.11%, ctx=744, 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=152147: Tue Sep 2 07:22:08 2025 read: IOPS=0, BW=571KiB/s (584kB/s)(2048KiB/3589msec) clat (msec): min=170, max=203, avg=186.89, stdev=23.68 lat (msec): min=170, max=203, avg=186.89, stdev=23.68 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 205], | 70.00th=[ 205], 80.00th=[ 205], 90.00th=[ 205], 95.00th=[ 205], | 99.00th=[ 205], 99.50th=[ 205], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 1741, max= 2048, per=33.20%, avg=1894.50, stdev=217.08, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2853KiB/s (2922kB/s)(10.0MiB/3589msec); 0 zone resets clat (msec): min=112, max=1171, avg=314.90, stdev=315.09 lat (msec): min=112, max=1171, avg=315.00, stdev=315.14 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 132], | 30.00th=[ 133], 40.00th=[ 138], 50.00th=[ 186], 60.00th=[ 279], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 359], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 2048, max= 6131, per=51.22%, avg=4091.67, stdev=2041.50, samples=3 iops : min= 2, max= 5, avg= 3.67, stdev= 1.53, samples=3 lat (msec) : 250=58.33%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=38.77%, ctx=379, 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=152148: Tue Sep 2 07:22:08 2025 read: IOPS=2, BW=2341KiB/s (2398kB/s)(6144KiB/2624msec) clat (msec): min=75, max=257, avg=175.56, stdev=71.05 lat (msec): min=75, max=257, avg=175.57, stdev=71.05 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 211], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 257], 95.00th=[ 257], | 99.00th=[ 257], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 2039, max= 4096, per=59.71%, avg=3407.33, stdev=1185.02, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=2, BW=2341KiB/s (2398kB/s)(6144KiB/2624msec); 0 zone resets clat (msec): min=111, max=420, avg=248.57, stdev=124.06 lat (msec): min=111, max=420, avg=248.73, stdev=124.15 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 251], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 2039, max= 3524, per=29.30%, avg=2340.40, stdev=661.66, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 0.84, samples=5 lat (msec) : 100=8.33%, 250=58.33%, 500=33.33% cpu : usr=0.04%, sys=46.17%, ctx=641, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152149: Tue Sep 2 07:22:08 2025 read: IOPS=1, BW=1681KiB/s (1721kB/s)(5120KiB/3046msec) clat (usec): min=842, max=182537, avg=97184.10, stdev=88892.61 lat (usec): min=844, max=182538, avg=97185.16, stdev=88892.21 clat percentiles (usec): | 1.00th=[ 840], 5.00th=[ 840], 10.00th=[ 840], 20.00th=[ 840], | 30.00th=[ 857], 40.00th=[ 857], 50.00th=[149947], 60.00th=[149947], | 70.00th=[152044], 80.00th=[152044], 90.00th=[183501], 95.00th=[183501], | 99.00th=[183501], 99.50th=[183501], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2353KiB/s (2410kB/s)(7168KiB/3046msec); 0 zone resets clat (msec): min=165, max=846, avg=359.81, stdev=235.68 lat (msec): min=165, max=846, avg=359.91, stdev=235.68 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 178], | 30.00th=[ 215], 40.00th=[ 215], 50.00th=[ 326], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 409], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1759, max= 2048, per=24.88%, avg=1987.40, stdev=127.74, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (usec) : 1000=16.67% lat (msec) : 250=50.00%, 500=25.00%, 1000=8.33% cpu : usr=0.03%, sys=41.94%, ctx=515, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5706KiB/s (5843kB/s), 571KiB/s-2511KiB/s (584kB/s-2571kB/s), io=20.0MiB (20.0MB), run=2624-3589msec WRITE: bw=7989KiB/s (8181kB/s), 1793KiB/s-2853KiB/s (1836kB/s-2922kB/s), io=28.0MiB (29.4MB), run=2624-3589msec 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=152155: Tue Sep 2 07:22:19 2025 read: IOPS=1, BW=5469KiB/s (5600kB/s)(12.0MiB/2247msec) clat (msec): min=652, max=752, avg=713.41, stdev=53.63 lat (msec): min=652, max=752, avg=713.41, stdev=53.63 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=47.02%, ctx=1440, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152156: Tue Sep 2 07:22:19 2025 read: IOPS=0, BW=1077KiB/s (1103kB/s)(4096KiB/3802msec) clat (nsec): min=789828k, max=789828k, avg=789827951.00, stdev= 0.00 lat (nsec): min=789829k, max=789829k, avg=789829454.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] 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=2155KiB/s (2206kB/s)(8192KiB/3802msec); 0 zone resets clat (msec): min=1385, max=1516, avg=1451.14, stdev=92.95 lat (msec): min=1385, max=1517, avg=1451.50, stdev=92.91 clat percentiles (msec): | 1.00th=[ 1385], 5.00th=[ 1385], 10.00th=[ 1385], 20.00th=[ 1385], | 30.00th=[ 1385], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 1519], | 70.00th=[ 1519], 80.00th=[ 1519], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 8078, max= 8078, per=93.73%, avg=8078.00, 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=29.65%, ctx=256, 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=152157: Tue Sep 2 07:22:19 2025 write: IOPS=0, BW=3784KiB/s (3875kB/s)(12.0MiB/3247msec); 0 zone resets clat (msec): min=676, max=1395, avg=1045.76, stdev=359.85 lat (msec): min=676, max=1396, avg=1046.16, stdev=359.94 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1062], | 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= 8078, max= 8175, per=94.30%, avg=8126.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.03%, sys=47.04%, ctx=182, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152159: Tue Sep 2 07:22:19 2025 write: IOPS=1, BW=4648KiB/s (4759kB/s)(12.0MiB/2644msec); 0 zone resets clat (msec): min=712, max=1059, avg=844.61, stdev=188.07 lat (msec): min=713, max=1060, avg=845.14, stdev=188.08 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 8175, max= 8192, per=94.96%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.04%, sys=62.09%, ctx=341, 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=4309KiB/s (4413kB/s), 1077KiB/s-5469KiB/s (1103kB/s-5600kB/s), io=16.0MiB (16.8MB), run=2247-3802msec WRITE: bw=8619KiB/s (8825kB/s), 2155KiB/s-4648KiB/s (2206kB/s-4759kB/s), io=32.0MiB (33.6MB), run=2644-3802msec rand-rw: (groupid=0, jobs=1): err= 0: pid=152160: Tue Sep 2 07:22:19 2025 read: IOPS=0, BW=3422KiB/s (3504kB/s)(12.0MiB/3591msec) clat (msec): min=917, max=1352, avg=1193.27, stdev=240.12 lat (msec): min=917, max=1352, avg=1193.28, stdev=240.12 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 1318], 50.00th=[ 1318], 60.00th=[ 1318], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7656, max= 8192, per=100.00%, avg=7924.00, stdev=379.01, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=8.86%, ctx=73, 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=152161: Tue Sep 2 07:22:19 2025 read: IOPS=0, BW=1044KiB/s (1069kB/s)(4096KiB/3925msec) clat (nsec): min=1772.7M, max=1772.7M, avg=1772656606.00, stdev= 0.00 lat (nsec): min=1772.7M, max=1772.7M, avg=1772658726.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1770], 5.00th=[ 1770], 10.00th=[ 1770], 20.00th=[ 1770], | 30.00th=[ 1770], 40.00th=[ 1770], 50.00th=[ 1770], 60.00th=[ 1770], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2087KiB/s (2137kB/s)(8192KiB/3925msec); 0 zone resets clat (msec): min=650, max=1485, avg=1067.82, stdev=590.49 lat (msec): min=650, max=1485, avg=1068.10, stdev=590.51 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 1485], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8175, max= 8175, per=97.93%, avg=8175.00, 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=12.08%, ctx=90, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152162: Tue Sep 2 07:22:19 2025 write: IOPS=0, BW=3244KiB/s (3322kB/s)(12.0MiB/3788msec); 0 zone resets clat (msec): min=592, max=1615, avg=1258.75, stdev=577.68 lat (msec): min=592, max=1615, avg=1259.10, stdev=577.73 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 1569], 50.00th=[ 1569], 60.00th=[ 1569], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 8192, max= 8192, per=98.13%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=9.96%, ctx=62, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=152163: Tue Sep 2 07:22:19 2025 write: IOPS=0, BW=3565KiB/s (3650kB/s)(12.0MiB/3447msec); 0 zone resets clat (msec): min=415, max=1603, avg=1141.28, stdev=636.11 lat (msec): min=416, max=1603, avg=1141.66, stdev=635.99 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 1401], 50.00th=[ 1401], 60.00th=[ 1401], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8192, max= 8192, per=98.13%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=16.54%, ctx=112, 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=4174KiB/s (4274kB/s), 1044KiB/s-3422KiB/s (1069kB/s-3504kB/s), io=16.0MiB (16.8MB), run=3591-3925msec WRITE: bw=8349KiB/s (8549kB/s), 2087KiB/s-3565KiB/s (2137kB/s-3650kB/s), io=32.0MiB (33.6MB), run=3447-3925msec