== sanity test 398b: DIO and buffer IO race ============== 16:21:25 (1786738885) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.22128 s, 8.1 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=179267: Fri Aug 14 16:24:03 2026 read: IOPS=10, BW=43.5KiB/s (44.5kB/s)(5992KiB/137739msec) clat (usec): min=33, max=1103.1k, avg=50092.34, stdev=42855.94 lat (usec): min=33, max=1103.1k, avg=50095.92, stdev=42856.31 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 775], 10.00th=[ 17957], | 20.00th=[ 24511], 30.00th=[ 30278], 40.00th=[ 36439], | 50.00th=[ 43254], 60.00th=[ 50594], 70.00th=[ 59507], | 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[ 108528], | 99.00th=[ 156238], 99.50th=[ 179307], 99.90th=[ 350225], | 99.95th=[1098908], 99.99th=[1098908] bw ( KiB/s): min= 7, max= 87, per=24.93%, avg=43.38, stdev=17.63, samples=269 iops : min= 1, max= 21, avg=10.18, stdev= 4.44, samples=269 write: IOPS=11, BW=45.7KiB/s (46.8kB/s)(6296KiB/137739msec); 0 zone resets clat (usec): min=1124, max=299540, avg=39506.96, stdev=40500.75 lat (usec): min=1125, max=299542, avg=39514.18, stdev=40498.59 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1450], 10.00th=[ 2278], 20.00th=[ 5342], | 30.00th=[ 9503], 40.00th=[ 18220], 50.00th=[ 28443], 60.00th=[ 38011], | 70.00th=[ 50070], 80.00th=[ 67634], 90.00th=[ 93848], 95.00th=[117965], | 99.00th=[185598], 99.50th=[210764], 99.90th=[242222], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 111, per=24.94%, avg=45.39, stdev=20.67, samples=270 iops : min= 1, max= 27, avg=10.69, stdev= 5.20, samples=270 lat (usec) : 50=0.23%, 100=2.02%, 250=0.13%, 500=0.03%, 1000=0.03% lat (msec) : 2=4.59%, 4=3.91%, 10=7.52%, 20=8.98%, 50=37.43% lat (msec) : 100=27.54%, 250=7.42%, 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=5.36%, ctx=6792, 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=179269: Fri Aug 14 16:24:03 2026 read: IOPS=10, BW=43.3KiB/s (44.4kB/s)(5940KiB/137111msec) clat (usec): min=44, max=319366, avg=51149.16, stdev=34082.79 lat (usec): min=45, max=319367, avg=51159.13, stdev=34091.39 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 14091], 10.00th=[ 20055], 20.00th=[ 26346], | 30.00th=[ 31589], 40.00th=[ 38011], 50.00th=[ 44827], 60.00th=[ 52167], | 70.00th=[ 59507], 80.00th=[ 71828], 90.00th=[ 89654], 95.00th=[107480], | 99.00th=[162530], 99.50th=[198181], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 6, max= 95, per=24.68%, avg=42.95, stdev=17.10, samples=270 iops : min= 1, max= 23, avg=10.07, stdev= 4.32, samples=270 write: IOPS=11, BW=46.3KiB/s (47.4kB/s)(6348KiB/137111msec); 0 zone resets clat (usec): min=1158, max=930194, avg=38204.01, stdev=45723.70 lat (usec): min=1159, max=930195, avg=38210.19, stdev=45721.25 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1450], 10.00th=[ 2245], 20.00th=[ 4555], | 30.00th=[ 8455], 40.00th=[ 15795], 50.00th=[ 26608], 60.00th=[ 35390], | 70.00th=[ 46400], 80.00th=[ 63701], 90.00th=[ 94897], 95.00th=[117965], | 99.00th=[179307], 99.50th=[200279], 99.90th=[267387], 99.95th=[926942], | 99.99th=[926942] bw ( KiB/s): min= 7, max= 112, per=25.33%, avg=46.10, stdev=20.86, samples=269 iops : min= 1, max= 28, avg=10.87, stdev= 5.27, samples=269 lat (usec) : 50=0.07%, 100=1.37%, 250=0.20%, 500=0.07% lat (msec) : 2=4.33%, 4=4.59%, 10=8.20%, 20=8.43%, 50=37.89% lat (msec) : 100=27.21%, 250=7.39%, 500=0.23%, 1000=0.03% cpu : usr=0.08%, sys=5.30%, ctx=6741, 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=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=179272: Fri Aug 14 16:24:03 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(6028KiB/132406msec) clat (usec): min=35, max=282870, avg=48058.98, stdev=30399.57 lat (usec): min=35, max=282871, avg=48062.71, stdev=30400.87 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 10421], 10.00th=[ 17695], 20.00th=[ 24773], | 30.00th=[ 30540], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 50594], | 70.00th=[ 58459], 80.00th=[ 68682], 90.00th=[ 85459], 95.00th=[ 98042], | 99.00th=[145753], 99.50th=[162530], 99.90th=[274727], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 7, max= 95, per=26.28%, avg=45.74, stdev=17.56, samples=257 iops : min= 1, max= 23, avg=10.77, stdev= 4.42, samples=257 write: IOPS=11, BW=47.3KiB/s (48.4kB/s)(6260KiB/132406msec); 0 zone resets clat (usec): min=1187, max=1026.6k, avg=38016.64, stdev=46238.95 lat (usec): min=1189, max=1026.6k, avg=38018.96, stdev=46239.67 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1467], 10.00th=[ 2089], | 20.00th=[ 4555], 30.00th=[ 8160], 40.00th=[ 17171], | 50.00th=[ 27395], 60.00th=[ 35914], 70.00th=[ 47973], | 80.00th=[ 63701], 90.00th=[ 89654], 95.00th=[ 111674], | 99.00th=[ 177210], 99.50th=[ 200279], 99.90th=[ 316670], | 99.95th=[1027605], 99.99th=[1027605] bw ( KiB/s): min= 7, max= 127, per=25.89%, avg=47.12, stdev=21.00, samples=259 iops : min= 1, max= 31, avg=11.13, stdev= 5.30, samples=259 lat (usec) : 50=0.33%, 100=1.69%, 250=0.16%, 750=0.07%, 1000=0.03% lat (msec) : 2=4.95%, 4=3.68%, 10=8.01%, 20=9.21%, 50=37.53% lat (msec) : 100=28.52%, 250=5.66%, 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=5.35%, ctx=6634, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179274: Fri Aug 14 16:24:03 2026 read: IOPS=10, BW=43.0KiB/s (45.0kB/s)(6052KiB/137570msec) clat (usec): min=31, max=331695, avg=49126.86, stdev=31910.02 lat (usec): min=31, max=331696, avg=49128.93, stdev=31910.01 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 188], 10.00th=[ 16581], 20.00th=[ 24249], | 30.00th=[ 30278], 40.00th=[ 36439], 50.00th=[ 43779], 60.00th=[ 50594], | 70.00th=[ 60556], 80.00th=[ 72877], 90.00th=[ 91751], 95.00th=[106431], | 99.00th=[152044], 99.50th=[164627], 99.90th=[208667], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 7, max= 94, per=25.17%, avg=43.79, stdev=17.05, samples=268 iops : min= 1, max= 23, avg=10.29, stdev= 4.31, samples=268 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6236KiB/137570msec); 0 zone resets clat (usec): min=1173, max=964673, avg=40191.86, stdev=47572.02 lat (usec): min=1175, max=964676, avg=40198.37, stdev=47580.01 clat percentiles (usec): | 1.00th=[ 1287], 5.00th=[ 1500], 10.00th=[ 2212], 20.00th=[ 4817], | 30.00th=[ 8717], 40.00th=[ 19268], 50.00th=[ 27395], 60.00th=[ 36963], | 70.00th=[ 49546], 80.00th=[ 69731], 90.00th=[ 94897], 95.00th=[121111], | 99.00th=[175113], 99.50th=[219153], 99.90th=[291505], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 103, per=24.72%, avg=44.98, stdev=20.36, samples=269 iops : min= 1, max= 25, avg=10.58, stdev= 5.13, samples=269 lat (usec) : 50=0.36%, 100=1.92%, 250=0.26%, 500=0.10%, 750=0.03% lat (msec) : 2=4.23%, 4=4.30%, 10=7.98%, 20=8.69%, 50=36.98% lat (msec) : 100=27.31%, 250=7.71%, 500=0.10%, 1000=0.03% cpu : usr=0.06%, sys=5.21%, ctx=6693, 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=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=174KiB/s (179kB/s), 43.3KiB/s-45.5KiB/s (44.4kB/s-46.6kB/s), io=23.4MiB (24.6MB), run=132406-137739msec WRITE: bw=183KiB/s (187kB/s), 45.3KiB/s-47.3KiB/s (46.4kB/s-48.4kB/s), io=24.6MiB (25.7MB), run=132406-137739msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179268: Fri Aug 14 16:24:44 2026 read: IOPS=8, BW=33.4KiB/s (34.2kB/s)(5992KiB/179253msec) clat (msec): min=6, max=1111, avg=45.97, stdev=48.71 lat (msec): min=6, max=1111, avg=45.97, stdev=48.71 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 38], | 70.00th=[ 47], 80.00th=[ 67], 90.00th=[ 104], 95.00th=[ 136], | 99.00th=[ 201], 99.50th=[ 224], 99.90th=[ 253], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 128, per=25.65%, avg=34.11, stdev=24.50, samples=341 iops : min= 1, max= 32, avg= 7.87, stdev= 6.16, samples=341 write: IOPS=8, BW=35.1KiB/s (35.0kB/s)(6296KiB/179253msec); 0 zone resets clat (msec): min=11, max=419, avg=69.83, stdev=50.48 lat (msec): min=11, max=419, avg=69.84, stdev=50.47 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 65], | 70.00th=[ 84], 80.00th=[ 109], 90.00th=[ 136], 95.00th=[ 165], | 99.00th=[ 253], 99.50th=[ 292], 99.90th=[ 372], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 7, max= 111, per=25.36%, avg=35.51, stdev=22.87, samples=344 iops : min= 1, max= 27, avg= 8.21, stdev= 5.77, samples=344 lat (msec) : 10=0.98%, 20=13.48%, 50=45.93%, 100=22.72%, 250=16.28% lat (msec) : 500=0.59%, 2000=0.03% cpu : usr=0.05%, sys=2.09%, ctx=5047, 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=179270: Fri Aug 14 16:24:44 2026 read: IOPS=8, BW=33.3KiB/s (34.1kB/s)(5940KiB/178289msec) clat (msec): min=5, max=954, avg=46.03, stdev=47.72 lat (msec): min=5, max=954, avg=46.03, stdev=47.72 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 68], 90.00th=[ 104], 95.00th=[ 138], | 99.00th=[ 201], 99.50th=[ 226], 99.90th=[ 292], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 120, per=25.94%, avg=34.50, stdev=24.14, samples=334 iops : min= 1, max= 30, avg= 7.95, stdev= 6.10, samples=334 write: IOPS=8, BW=35.6KiB/s (36.5kB/s)(6348KiB/178289msec); 0 zone resets clat (msec): min=10, max=394, avg=68.97, stdev=49.20 lat (msec): min=10, max=394, avg=68.97, stdev=49.20 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 63], | 70.00th=[ 81], 80.00th=[ 102], 90.00th=[ 134], 95.00th=[ 161], | 99.00th=[ 245], 99.50th=[ 305], 99.90th=[ 368], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 104, per=25.40%, avg=35.56, stdev=22.17, samples=346 iops : min= 1, max= 26, avg= 8.23, stdev= 5.60, samples=346 lat (msec) : 10=1.63%, 20=13.64%, 50=44.37%, 100=24.58%, 250=15.10% lat (msec) : 500=0.65%, 1000=0.03% cpu : usr=0.05%, sys=2.12%, ctx=4955, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179271: Fri Aug 14 16:24:44 2026 read: IOPS=8, BW=33.7KiB/s (34.5kB/s)(6028KiB/178823msec) clat (msec): min=5, max=326, avg=46.27, stdev=42.06 lat (msec): min=5, max=326, avg=46.27, stdev=42.07 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 49], 80.00th=[ 71], 90.00th=[ 107], 95.00th=[ 132], | 99.00th=[ 201], 99.50th=[ 224], 99.90th=[ 317], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 7, max= 143, per=25.87%, avg=34.41, stdev=23.75, samples=339 iops : min= 1, max= 35, avg= 7.95, stdev= 5.99, samples=339 write: IOPS=8, BW=35.0KiB/s (35.8kB/s)(6260KiB/178823msec); 0 zone resets clat (msec): min=10, max=1006, avg=69.40, stdev=55.66 lat (msec): min=10, max=1006, avg=69.41, stdev=55.66 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 42], 50.00th=[ 52], 60.00th=[ 63], | 70.00th=[ 79], 80.00th=[ 102], 90.00th=[ 136], 95.00th=[ 169], | 99.00th=[ 259], 99.50th=[ 305], 99.90th=[ 422], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 111, per=25.04%, avg=35.05, stdev=22.79, samples=346 iops : min= 1, max= 27, avg= 8.10, stdev= 5.74, samples=346 lat (msec) : 10=1.33%, 20=12.86%, 50=45.70%, 100=24.28%, 250=15.07% lat (msec) : 500=0.72%, 2000=0.03% cpu : usr=0.05%, sys=2.11%, ctx=4958, 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=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=179273: Fri Aug 14 16:24:44 2026 read: IOPS=8, BW=33.9KiB/s (34.7kB/s)(6052KiB/178565msec) clat (msec): min=5, max=330, avg=47.18, stdev=44.36 lat (msec): min=5, max=330, avg=47.18, stdev=44.37 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 71], 90.00th=[ 111], 95.00th=[ 146], | 99.00th=[ 209], 99.50th=[ 247], 99.90th=[ 288], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 119, per=25.93%, avg=34.49, stdev=24.08, samples=339 iops : min= 1, max= 29, avg= 7.96, stdev= 6.07, samples=339 write: IOPS=8, BW=34.9KiB/s (35.8kB/s)(6236KiB/178565msec); 0 zone resets clat (msec): min=12, max=971, avg=68.47, stdev=53.73 lat (msec): min=12, max=971, avg=68.47, stdev=53.73 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 51], 60.00th=[ 63], | 70.00th=[ 81], 80.00th=[ 101], 90.00th=[ 131], 95.00th=[ 161], | 99.00th=[ 245], 99.50th=[ 296], 99.90th=[ 409], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 111, per=25.00%, avg=35.00, stdev=22.53, samples=344 iops : min= 1, max= 27, avg= 8.09, stdev= 5.68, samples=344 lat (msec) : 10=1.30%, 20=14.10%, 50=44.66%, 100=24.12%, 250=15.14% lat (msec) : 500=0.65%, 1000=0.03% cpu : usr=0.05%, sys=2.07%, ctx=4933, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=134KiB/s (137kB/s), 33.3KiB/s-33.9KiB/s (34.1kB/s-34.7kB/s), io=23.4MiB (24.6MB), run=178289-179253msec WRITE: bw=140KiB/s (144kB/s), 34.9KiB/s-35.6KiB/s (35.8kB/s-36.5kB/s), io=24.6MiB (25.7MB), run=178289-179253msec 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=179320: Fri Aug 14 16:25:38 2026 read: IOPS=8, BW=140KiB/s (143kB/s)(5920KiB/42355msec) clat (usec): min=51, max=335486, avg=62168.38, stdev=42769.48 lat (usec): min=52, max=335487, avg=62169.70, stdev=42769.53 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 63], 10.00th=[ 22938], 20.00th=[ 32375], | 30.00th=[ 39060], 40.00th=[ 46400], 50.00th=[ 54789], 60.00th=[ 63701], | 70.00th=[ 70779], 80.00th=[ 83362], 90.00th=[111674], 95.00th=[147850], | 99.00th=[214959], 99.50th=[235930], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 31, max= 308, per=24.61%, avg=138.82, stdev=61.02, samples=83 iops : min= 1, max= 19, avg= 7.86, stdev= 3.90, samples=83 write: IOPS=9, BW=150KiB/s (154kB/s)(6368KiB/42355msec); 0 zone resets clat (usec): min=1524, max=301798, avg=48491.37, stdev=45798.26 lat (usec): min=1525, max=301799, avg=48495.90, stdev=45797.88 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 1909], 10.00th=[ 2671], 20.00th=[ 6849], | 30.00th=[ 14353], 40.00th=[ 26346], 50.00th=[ 38011], 60.00th=[ 50594], | 70.00th=[ 66323], 80.00th=[ 81265], 90.00th=[109577], 95.00th=[131597], | 99.00th=[214959], 99.50th=[256902], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 31, max= 349, per=25.54%, avg=151.46, stdev=72.18, samples=82 iops : min= 1, max= 21, avg= 8.66, stdev= 4.55, samples=82 lat (usec) : 100=3.26%, 500=0.13% lat (msec) : 2=3.39%, 4=2.99%, 10=6.51%, 20=6.12%, 50=29.56% lat (msec) : 100=35.55%, 250=12.11%, 500=0.39% cpu : usr=0.05%, sys=4.76%, ctx=1693, 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=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=179321: Fri Aug 14 16:25:38 2026 read: IOPS=8, BW=135KiB/s (139kB/s)(5744KiB/42430msec) clat (usec): min=50, max=230558, avg=63678.01, stdev=39220.64 lat (usec): min=51, max=230559, avg=63688.87, stdev=39232.57 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 81], 10.00th=[ 25297], 20.00th=[ 34341], | 30.00th=[ 41157], 40.00th=[ 47973], 50.00th=[ 55837], 60.00th=[ 65799], | 70.00th=[ 78119], 80.00th=[ 89654], 90.00th=[112722], 95.00th=[139461], | 99.00th=[196084], 99.50th=[206570], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 31, max= 281, per=23.70%, avg=133.69, stdev=54.49, samples=83 iops : min= 1, max= 17, avg= 7.54, stdev= 3.45, samples=83 write: IOPS=9, BW=154KiB/s (158kB/s)(6544KiB/42430msec); 0 zone resets clat (usec): min=1654, max=264476, avg=47648.95, stdev=44185.34 lat (usec): min=1656, max=264481, avg=47653.25, stdev=44186.82 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2311], 10.00th=[ 5538], 20.00th=[ 10028], | 30.00th=[ 15401], 40.00th=[ 28443], 50.00th=[ 38011], 60.00th=[ 46924], | 70.00th=[ 60031], 80.00th=[ 74974], 90.00th=[106431], 95.00th=[139461], | 99.00th=[202376], 99.50th=[235930], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 31, max= 384, per=25.71%, avg=152.43, stdev=81.16, samples=83 iops : min= 1, max= 24, avg= 8.71, stdev= 5.15, samples=83 lat (usec) : 100=2.34%, 250=0.13% lat (msec) : 2=1.95%, 4=2.08%, 10=6.64%, 20=7.55%, 50=32.42% lat (msec) : 100=33.98%, 250=12.63%, 500=0.26% cpu : usr=0.05%, sys=4.79%, ctx=1796, 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=179322: Fri Aug 14 16:25:38 2026 read: IOPS=9, BW=148KiB/s (152kB/s)(6256KiB/42234msec) clat (usec): min=51, max=321247, avg=62226.22, stdev=41346.60 lat (usec): min=53, max=321248, avg=62246.50, stdev=41329.35 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 66], 10.00th=[ 21890], 20.00th=[ 34866], | 30.00th=[ 40633], 40.00th=[ 48497], 50.00th=[ 54264], 60.00th=[ 65274], | 70.00th=[ 74974], 80.00th=[ 86508], 90.00th=[109577], 95.00th=[133694], | 99.00th=[229639], 99.50th=[238027], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 31, max= 288, per=26.30%, avg=148.35, stdev=55.46, samples=83 iops : min= 1, max= 18, avg= 8.46, stdev= 3.55, samples=83 write: IOPS=8, BW=143KiB/s (146kB/s)(6032KiB/42234msec); 0 zone resets clat (usec): min=1395, max=210764, avg=47221.59, stdev=43578.90 lat (usec): min=1397, max=210765, avg=47256.50, stdev=43549.65 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2024], 10.00th=[ 3884], 20.00th=[ 8225], | 30.00th=[ 14746], 40.00th=[ 23200], 50.00th=[ 34341], 60.00th=[ 49021], | 70.00th=[ 63701], 80.00th=[ 80217], 90.00th=[114820], 95.00th=[131597], | 99.00th=[189793], 99.50th=[204473], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 286, per=24.00%, avg=142.31, stdev=60.51, samples=83 iops : min= 1, max= 17, avg= 8.08, stdev= 3.81, samples=83 lat (usec) : 100=3.26%, 250=0.13% lat (msec) : 2=2.21%, 4=3.12%, 10=6.64%, 20=7.29%, 50=29.04% lat (msec) : 100=35.29%, 250=12.89%, 500=0.13% cpu : usr=0.07%, sys=4.94%, ctx=1754, 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=179323: Fri Aug 14 16:25:38 2026 read: IOPS=9, BW=148KiB/s (152kB/s)(6032KiB/40730msec) clat (usec): min=50, max=319850, avg=60174.76, stdev=38088.56 lat (usec): min=51, max=319852, avg=60176.13, stdev=38088.59 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 69], 10.00th=[ 21103], 20.00th=[ 32375], | 30.00th=[ 40109], 40.00th=[ 47449], 50.00th=[ 55837], 60.00th=[ 65274], | 70.00th=[ 73925], 80.00th=[ 85459], 90.00th=[102237], 95.00th=[122160], | 99.00th=[198181], 99.50th=[233833], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 26, max= 286, per=26.16%, avg=147.53, stdev=61.98, samples=80 iops : min= 1, max= 17, avg= 8.41, stdev= 3.95, samples=80 write: IOPS=9, BW=154KiB/s (157kB/s)(6256KiB/40730msec); 0 zone resets clat (usec): min=1642, max=306460, avg=45971.47, stdev=46039.22 lat (usec): min=1644, max=306464, avg=45974.30, stdev=46039.40 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2573], 10.00th=[ 4113], 20.00th=[ 8848], | 30.00th=[ 14222], 40.00th=[ 21890], 50.00th=[ 30540], 60.00th=[ 43254], | 70.00th=[ 53216], 80.00th=[ 77071], 90.00th=[114820], 95.00th=[139461], | 99.00th=[185598], 99.50th=[204473], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 61, max= 349, per=25.91%, avg=153.67, stdev=66.40, samples=80 iops : min= 3, max= 21, avg= 8.79, stdev= 4.15, samples=80 lat (usec) : 100=2.86%, 250=0.52%, 500=0.13%, 750=0.13%, 1000=0.13% lat (msec) : 2=1.95%, 4=3.12%, 10=7.03%, 20=7.81%, 50=31.25% lat (msec) : 100=33.20%, 250=11.59%, 500=0.26% cpu : usr=0.05%, sys=5.04%, ctx=1679, 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=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=565KiB/s (578kB/s), 135KiB/s-148KiB/s (139kB/s-152kB/s), io=23.4MiB (24.5MB), run=40730-42430msec WRITE: bw=594KiB/s (608kB/s), 143KiB/s-154KiB/s (146kB/s-158kB/s), io=24.6MiB (25.8MB), run=40730-42430msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179315: Fri Aug 14 16:25:52 2026 read: IOPS=6, BW=104KiB/s (106kB/s)(5920KiB/56960msec) clat (msec): min=6, max=266, avg=57.53, stdev=46.39 lat (msec): min=6, max=266, avg=57.53, stdev=46.39 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 24], | 30.00th=[ 31], 40.00th=[ 37], 50.00th=[ 43], 60.00th=[ 53], | 70.00th=[ 63], 80.00th=[ 81], 90.00th=[ 121], 95.00th=[ 163], | 99.00th=[ 236], 99.50th=[ 257], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 30, max= 316, per=25.80%, avg=108.36, stdev=69.73, samples=106 iops : min= 1, max= 19, avg= 5.99, stdev= 4.45, samples=106 write: IOPS=6, BW=112KiB/s (114kB/s)(6368KiB/56960msec); 0 zone resets clat (msec): min=16, max=409, avg=89.24, stdev=62.47 lat (msec): min=16, max=409, avg=89.24, stdev=62.47 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 28], 10.00th=[ 32], 20.00th=[ 40], | 30.00th=[ 46], 40.00th=[ 58], 50.00th=[ 69], 60.00th=[ 87], | 70.00th=[ 107], 80.00th=[ 133], 90.00th=[ 180], 95.00th=[ 209], | 99.00th=[ 317], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 31, max= 313, per=25.36%, avg=112.10, stdev=65.63, samples=111 iops : min= 1, max= 19, avg= 6.22, stdev= 4.20, samples=111 lat (msec) : 10=0.26%, 20=6.25%, 50=38.80%, 100=31.25%, 250=21.88% lat (msec) : 500=1.56% cpu : usr=0.03%, sys=1.89%, ctx=1286, 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=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=179316: Fri Aug 14 16:25:52 2026 read: IOPS=6, BW=101KiB/s (103kB/s)(5744KiB/56857msec) clat (msec): min=6, max=314, avg=60.30, stdev=48.82 lat (msec): min=6, max=314, avg=60.31, stdev=48.82 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 19], 20.00th=[ 24], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 53], | 70.00th=[ 64], 80.00th=[ 88], 90.00th=[ 133], 95.00th=[ 165], | 99.00th=[ 213], 99.50th=[ 284], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 30, max= 381, per=25.67%, avg=107.81, stdev=71.58, samples=104 iops : min= 1, max= 23, avg= 5.95, stdev= 4.54, samples=104 write: IOPS=7, BW=115KiB/s (118kB/s)(6544KiB/56857msec); 0 zone resets clat (msec): min=17, max=411, avg=85.93, stdev=59.08 lat (msec): min=17, max=411, avg=85.94, stdev=59.08 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 28], 10.00th=[ 32], 20.00th=[ 40], | 30.00th=[ 48], 40.00th=[ 57], 50.00th=[ 69], 60.00th=[ 82], | 70.00th=[ 100], 80.00th=[ 128], 90.00th=[ 169], 95.00th=[ 194], | 99.00th=[ 288], 99.50th=[ 342], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 31, max= 288, per=26.68%, avg=117.94, stdev=68.71, samples=109 iops : min= 1, max= 18, avg= 6.59, stdev= 4.38, samples=109 lat (msec) : 10=0.52%, 20=5.73%, 50=38.15%, 100=32.03%, 250=22.40% lat (msec) : 500=1.17% cpu : usr=0.05%, sys=1.70%, ctx=1265, 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=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=179317: Fri Aug 14 16:25:52 2026 read: IOPS=6, BW=111KiB/s (114kB/s)(6256KiB/56240msec) clat (msec): min=7, max=307, avg=59.32, stdev=49.45 lat (msec): min=7, max=307, avg=59.32, stdev=49.45 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 26], | 30.00th=[ 32], 40.00th=[ 36], 50.00th=[ 45], 60.00th=[ 51], | 70.00th=[ 61], 80.00th=[ 80], 90.00th=[ 124], 95.00th=[ 176], | 99.00th=[ 245], 99.50th=[ 266], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 30, max= 314, per=28.00%, avg=117.62, stdev=72.27, samples=105 iops : min= 1, max= 19, avg= 6.56, stdev= 4.57, samples=105 write: IOPS=6, BW=107KiB/s (110kB/s)(6032KiB/56240msec); 0 zone resets clat (msec): min=18, max=376, avg=87.31, stdev=61.83 lat (msec): min=18, max=376, avg=87.31, stdev=61.83 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 32], 20.00th=[ 41], | 30.00th=[ 48], 40.00th=[ 55], 50.00th=[ 64], 60.00th=[ 79], | 70.00th=[ 106], 80.00th=[ 132], 90.00th=[ 174], 95.00th=[ 222], | 99.00th=[ 313], 99.50th=[ 326], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 30, max= 383, per=24.91%, avg=110.08, stdev=64.11, samples=107 iops : min= 1, max= 23, avg= 6.08, stdev= 4.08, samples=107 lat (msec) : 10=0.13%, 20=6.12%, 50=40.49%, 100=29.56%, 250=22.27% lat (msec) : 500=1.43% cpu : usr=0.04%, sys=1.81%, ctx=1243, 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=179318: Fri Aug 14 16:25:52 2026 read: IOPS=6, BW=106KiB/s (109kB/s)(6032KiB/56856msec) clat (msec): min=8, max=248, avg=61.85, stdev=48.38 lat (msec): min=8, max=248, avg=61.85, stdev=48.38 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 17], 10.00th=[ 19], 20.00th=[ 26], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 66], 80.00th=[ 91], 90.00th=[ 134], 95.00th=[ 167], | 99.00th=[ 228], 99.50th=[ 247], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 30, max= 351, per=26.64%, avg=111.88, stdev=68.70, samples=105 iops : min= 1, max= 21, avg= 6.21, stdev= 4.35, samples=105 write: IOPS=6, BW=110KiB/s (113kB/s)(6256KiB/56856msec); 0 zone resets clat (msec): min=20, max=379, avg=85.41, stdev=59.53 lat (msec): min=20, max=379, avg=85.41, stdev=59.53 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 29], 10.00th=[ 33], 20.00th=[ 39], | 30.00th=[ 47], 40.00th=[ 55], 50.00th=[ 69], 60.00th=[ 82], | 70.00th=[ 99], 80.00th=[ 124], 90.00th=[ 167], 95.00th=[ 194], | 99.00th=[ 330], 99.50th=[ 351], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 31, max= 320, per=24.82%, avg=109.71, stdev=71.07, samples=112 iops : min= 1, max= 20, avg= 6.06, stdev= 4.55, samples=112 lat (msec) : 10=0.52%, 20=4.82%, 50=39.06%, 100=32.68%, 250=21.74% lat (msec) : 500=1.17% cpu : usr=0.04%, sys=1.92%, ctx=1308, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=421KiB/s (431kB/s), 101KiB/s-111KiB/s (103kB/s-114kB/s), io=23.4MiB (24.5MB), run=56240-56960msec WRITE: bw=442KiB/s (453kB/s), 107KiB/s-115KiB/s (110kB/s-118kB/s), io=24.6MiB (25.8MB), run=56240-56960msec 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=179340: Fri Aug 14 16:26:10 2026 read: IOPS=1, BW=1371KiB/s (1404kB/s)(7168KiB/5227msec) clat (msec): min=4, max=3200, avg=561.89, stdev=1166.54 lat (msec): min=4, max=3200, avg=561.89, stdev=1166.54 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 5], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 180], 80.00th=[ 207], 90.00th=[ 3205], 95.00th=[ 3205], | 99.00th=[ 3205], 99.50th=[ 3205], 99.90th=[ 3205], 99.95th=[ 3205], | 99.99th=[ 3205] bw ( KiB/s): min= 2035, max= 4063, per=100.00%, avg=3087.67, stdev=1016.21, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=0, BW=980KiB/s (1003kB/s)(5120KiB/5227msec); 0 zone resets clat (msec): min=145, max=350, avg=242.29, stdev=97.07 lat (msec): min=145, max=350, avg=242.35, stdev=97.05 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 146], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 207], 60.00th=[ 207], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2031, max= 3953, per=79.74%, avg=2992.00, stdev=1359.06, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (msec) : 10=16.67%, 250=58.33%, 500=16.67%, >=2000=8.33% cpu : usr=0.10%, sys=9.78%, ctx=628, 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=179342: Fri Aug 14 16:26:10 2026 read: IOPS=0, BW=268KiB/s (274kB/s)(2048KiB/7640msec) clat (msec): min=217, max=720, avg=469.21, stdev=355.44 lat (msec): min=217, max=720, avg=469.22, stdev=355.45 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 218], 50.00th=[ 218], 60.00th=[ 718], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1928, max= 2039, per=74.01%, avg=1983.50, stdev=78.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1340KiB/s (1372kB/s)(10.0MiB/7640msec); 0 zone resets clat (msec): min=177, max=3146, avg=634.40, stdev=898.23 lat (msec): min=177, max=3146, avg=634.49, stdev=898.22 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 188], 40.00th=[ 194], 50.00th=[ 342], 60.00th=[ 451], | 70.00th=[ 550], 80.00th=[ 558], 90.00th=[ 558], 95.00th=[ 3138], | 99.00th=[ 3138], 99.50th=[ 3138], 99.90th=[ 3138], 99.95th=[ 3138], | 99.99th=[ 3138] bw ( KiB/s): min= 2011, max= 4071, per=80.96%, avg=3037.67, stdev=1103.00, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=41.67%, 500=16.67%, 750=33.33%, >=2000=8.33% cpu : usr=0.00%, sys=7.74%, ctx=190, 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=179344: Fri Aug 14 16:26:10 2026 read: IOPS=0, BW=836KiB/s (856kB/s)(6144KiB/7352msec) clat (msec): min=165, max=373, avg=250.22, stdev=89.48 lat (msec): min=165, max=373, avg=250.23, stdev=89.48 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 1969, max= 4087, per=94.50%, avg=2532.50, stdev=1036.83, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=0, BW=836KiB/s (856kB/s)(6144KiB/7352msec); 0 zone resets clat (msec): min=145, max=3438, avg=894.95, stdev=1262.26 lat (msec): min=145, max=3438, avg=895.04, stdev=1262.26 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 531], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 3440], 95.00th=[ 3440], | 99.00th=[ 3440], 99.50th=[ 3440], 99.90th=[ 3440], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 2011, max= 4055, per=64.94%, avg=2436.60, stdev=904.80, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=7.78%, ctx=191, 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=179345: Fri Aug 14 16:26:10 2026 read: IOPS=0, BW=846KiB/s (866kB/s)(5120KiB/6051msec) clat (usec): min=436, max=181230, avg=36709.19, stdev=80789.94 lat (usec): min=437, max=181230, avg=36710.33, stdev=80789.48 clat percentiles (usec): | 1.00th=[ 437], 5.00th=[ 437], 10.00th=[ 437], 20.00th=[ 437], | 30.00th=[ 553], 40.00th=[ 553], 50.00th=[ 652], 60.00th=[ 652], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[181404], 95.00th=[181404], | 99.00th=[181404], 99.50th=[181404], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 3938, max= 4079, per=100.00%, avg=4008.50, stdev=99.70, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1185KiB/s (1213kB/s)(7168KiB/6051msec); 0 zone resets clat (msec): min=154, max=3505, avg=811.81, stdev=1205.60 lat (msec): min=154, max=3505, avg=811.89, stdev=1205.60 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 228], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 305], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 768], 90.00th=[ 3507], 95.00th=[ 3507], | 99.00th=[ 3507], 99.50th=[ 3507], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 1928, max= 3953, per=65.89%, avg=2472.25, stdev=988.23, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33%, 750=25.00% lat (msec) : 250=33.33%, 500=16.67%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=7.92%, ctx=105, 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=2681KiB/s (2745kB/s), 268KiB/s-1371KiB/s (274kB/s-1404kB/s), io=20.0MiB (20.0MB), run=5227-7640msec WRITE: bw=3753KiB/s (3843kB/s), 836KiB/s-1340KiB/s (856kB/s-1372kB/s), io=28.0MiB (29.4MB), run=5227-7640msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179338: Fri Aug 14 16:26:10 2026 read: IOPS=0, BW=949KiB/s (972kB/s)(7168KiB/7551msec) clat (msec): min=109, max=3301, avg=655.33, stdev=1168.65 lat (msec): min=109, max=3301, avg=655.33, stdev=1168.65 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 146], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 245], 60.00th=[ 275], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 3306], 95.00th=[ 3306], | 99.00th=[ 3306], 99.50th=[ 3306], 99.90th=[ 3306], 99.95th=[ 3306], | 99.99th=[ 3306] bw ( KiB/s): min= 1980, max= 3984, per=90.52%, avg=2413.20, stdev=878.53, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=0, BW=678KiB/s (694kB/s)(5120KiB/7551msec); 0 zone resets clat (msec): min=218, max=1248, avg=550.24, stdev=429.71 lat (msec): min=219, max=1248, avg=550.33, stdev=429.71 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 347], 60.00th=[ 347], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 2011, max= 4039, per=72.27%, avg=2697.67, stdev=1161.74, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.57%, ctx=106, 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=179339: Fri Aug 14 16:26:10 2026 read: IOPS=0, BW=292KiB/s (299kB/s)(2048KiB/7009msec) clat (msec): min=131, max=215, avg=173.16, stdev=59.62 lat (msec): min=131, max=215, avg=173.16, stdev=59.62 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 131], | 30.00th=[ 131], 40.00th=[ 131], 50.00th=[ 131], 60.00th=[ 215], | 70.00th=[ 215], 80.00th=[ 215], 90.00th=[ 215], 95.00th=[ 215], | 99.00th=[ 215], 99.50th=[ 215], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 1838, max= 2048, per=72.88%, avg=1943.00, stdev=148.49, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1461KiB/s (1496kB/s)(10.0MiB/7009msec); 0 zone resets clat (msec): min=120, max=3266, avg=646.06, stdev=945.72 lat (msec): min=120, max=3266, avg=646.19, stdev=945.71 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 188], | 30.00th=[ 190], 40.00th=[ 207], 50.00th=[ 279], 60.00th=[ 388], | 70.00th=[ 409], 80.00th=[ 584], 90.00th=[ 835], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 2000, max= 6119, per=81.49%, avg=3042.00, stdev=1715.24, samples=6 iops : min= 1, max= 5, avg= 2.17, stdev= 1.60, samples=6 lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.03%, sys=2.05%, 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=179341: Fri Aug 14 16:26:10 2026 read: IOPS=0, BW=869KiB/s (890kB/s)(6144KiB/7073msec) clat (msec): min=150, max=592, avg=246.26, stdev=171.25 lat (msec): min=150, max=592, avg=246.27, stdev=171.25 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 169], 60.00th=[ 188], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 2003, max= 4055, per=94.98%, avg=2532.25, stdev=1015.33, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=0, BW=869KiB/s (890kB/s)(6144KiB/7073msec); 0 zone resets clat (msec): min=202, max=3366, avg=905.04, stdev=1221.01 lat (msec): min=203, max=3366, avg=905.14, stdev=1220.99 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 405], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 3373], 95.00th=[ 3373], | 99.00th=[ 3373], 99.50th=[ 3373], 99.90th=[ 3373], 99.95th=[ 3373], | 99.99th=[ 3373] bw ( KiB/s): min= 2003, max= 4015, per=67.46%, avg=2518.25, stdev=998.04, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 250=50.00%, 500=25.00%, 750=8.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.87%, ctx=84, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179343: Fri Aug 14 16:26:10 2026 read: IOPS=0, BW=667KiB/s (683kB/s)(5120KiB/7680msec) clat (msec): min=80, max=711, avg=357.74, stdev=270.21 lat (msec): min=80, max=711, avg=357.74, stdev=270.21 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 82], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 309], 60.00th=[ 309], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 709], 95.00th=[ 709], | 99.00th=[ 709], 99.50th=[ 709], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 2000, max= 2031, per=75.59%, avg=2015.25, stdev=13.07, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=0, BW=933KiB/s (956kB/s)(7168KiB/7680msec); 0 zone resets clat (msec): min=220, max=3808, avg=837.35, stdev=1317.93 lat (msec): min=220, max=3808, avg=837.43, stdev=1317.94 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 226], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 330], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 642], 90.00th=[ 3809], 95.00th=[ 3809], | 99.00th=[ 3809], 99.50th=[ 3809], 99.90th=[ 3809], 99.95th=[ 3809], | 99.99th=[ 3809] bw ( KiB/s): min= 1882, max= 4063, per=62.68%, avg=2339.83, stdev=846.32, samples=6 iops : min= 1, max= 3, avg= 1.50, stdev= 0.84, samples=6 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=25.00%, >=2000=8.33% cpu : usr=0.01%, sys=3.07%, ctx=99, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2667KiB/s (2731kB/s), 292KiB/s-949KiB/s (299kB/s-972kB/s), io=20.0MiB (20.0MB), run=7009-7680msec WRITE: bw=3733KiB/s (3823kB/s), 678KiB/s-1461KiB/s (694kB/s-1496kB/s), io=28.0MiB (29.4MB), run=7009-7680msec 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=179352: Fri Aug 14 16:26:25 2026 read: IOPS=1, BW=4390KiB/s (4496kB/s)(12.0MiB/2799msec) clat (msec): min=742, max=921, avg=857.77, stdev=100.21 lat (msec): min=742, max=921, avg=857.77, stdev=100.21 clat percentiles (msec): | 1.00th=[ 743], 5.00th=[ 743], 10.00th=[ 743], 20.00th=[ 743], | 30.00th=[ 743], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 911], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 8000, max= 8062, per=100.00%, avg=8031.00, stdev=43.84, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=11.76%, ctx=279, 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=179354: Fri Aug 14 16:26:25 2026 read: IOPS=0, BW=1236KiB/s (1266kB/s)(4096KiB/3314msec) clat (nsec): min=959555k, max=959555k, avg=959555310.00, stdev= 0.00 lat (nsec): min=959558k, max=959558k, avg=959558342.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 961], 5.00th=[ 961], 10.00th=[ 961], 20.00th=[ 961], | 30.00th=[ 961], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 961], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2472KiB/s (2531kB/s)(8192KiB/3314msec); 0 zone resets clat (msec): min=774, max=1424, avg=1099.22, stdev=459.36 lat (msec): min=781, max=1424, avg=1102.83, stdev=454.68 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 776], 50.00th=[ 776], 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= 8000, max= 8000, per=90.21%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.71%, ctx=170, 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=179355: Fri Aug 14 16:26:25 2026 write: IOPS=0, BW=3326KiB/s (3405kB/s)(12.0MiB/3695msec); 0 zone resets clat (msec): min=241, max=2370, avg=1184.53, stdev=1085.40 lat (msec): min=241, max=2371, avg=1185.01, stdev=1085.39 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 243], | 30.00th=[ 243], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 8143, max= 8159, per=91.91%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.33%, ctx=47, 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=179356: Fri Aug 14 16:26:25 2026 write: IOPS=1, BW=4553KiB/s (4662kB/s)(12.0MiB/2699msec); 0 zone resets clat (msec): min=344, max=1570, avg=873.15, stdev=630.02 lat (msec): min=344, max=1570, avg=873.66, stdev=629.94 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 7846, max= 8143, per=90.15%, avg=7994.50, stdev=210.01, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.07%, sys=5.00%, ctx=53, 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=4944KiB/s (5063kB/s), 1236KiB/s-4390KiB/s (1266kB/s-4496kB/s), io=16.0MiB (16.8MB), run=2799-3314msec WRITE: bw=8868KiB/s (9081kB/s), 2472KiB/s-4553KiB/s (2531kB/s-4662kB/s), io=32.0MiB (33.6MB), run=2699-3695msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179357: Fri Aug 14 16:26:25 2026 read: IOPS=1, BW=4178KiB/s (4278kB/s)(12.0MiB/2941msec) clat (msec): min=720, max=1091, avg=924.37, stdev=188.27 lat (msec): min=720, max=1091, avg=924.37, stdev=188.27 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 961], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 8000, max= 8110, per=100.00%, avg=8055.00, stdev=77.78, 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=3.95%, ctx=43, 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=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=179358: Fri Aug 14 16:26:25 2026 read: IOPS=0, BW=1168KiB/s (1196kB/s)(4096KiB/3508msec) clat (nsec): min=1391.8M, max=1391.8M, avg=1391844238.00, stdev= 0.00 lat (nsec): min=1391.8M, max=1391.8M, avg=1391846279.00, stdev= 0.00 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=[ 1385], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8000, max= 8000, per=100.00%, avg=8000.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2335KiB/s (2391kB/s)(8192KiB/3508msec); 0 zone resets clat (msec): min=931, max=1038, avg=985.00, stdev=75.14 lat (msec): min=932, max=1041, avg=986.76, stdev=77.09 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=[ 1036], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 8159, max= 8159, per=90.02%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.45%, ctx=59, 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=179359: Fri Aug 14 16:26:25 2026 write: IOPS=0, BW=3399KiB/s (3481kB/s)(12.0MiB/3615msec); 0 zone resets clat (msec): min=228, max=2159, avg=1154.02, stdev=968.38 lat (msec): min=228, max=2160, avg=1154.35, stdev=968.42 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 1083], 50.00th=[ 1083], 60.00th=[ 1083], | 70.00th=[ 2165], 80.00th=[ 2165], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 8110, max= 8110, per=89.47%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.65%, ctx=50, 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=179360: Fri Aug 14 16:26:25 2026 write: IOPS=0, BW=4069KiB/s (4167kB/s)(12.0MiB/3020msec); 0 zone resets clat (msec): min=315, max=1608, avg=985.44, stdev=648.13 lat (msec): min=316, max=1609, avg=986.15, stdev=647.55 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 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= 8031, max= 8031, per=88.60%, avg=8031.00, 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=5.40%, ctx=88, 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=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=4670KiB/s (4783kB/s), 1168KiB/s-4178KiB/s (1196kB/s-4278kB/s), io=16.0MiB (16.8MB), run=2941-3508msec WRITE: bw=9064KiB/s (9282kB/s), 2335KiB/s-4069KiB/s (2391kB/s-4167kB/s), io=32.0MiB (33.6MB), run=3020-3615msec