== sanity test 398b: DIO and buffer IO race ============== 20:54:52 (1789433692) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.42943 s, 7.8 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=180081: Mon Sep 14 20:56:55 2026 read: IOPS=14, BW=57.0KiB/s (59.4kB/s)(5992KiB/103339msec) clat (usec): min=35, max=259002, avg=37770.30, stdev=25319.87 lat (usec): min=37, max=259003, avg=37776.62, stdev=25334.26 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 10552], 10.00th=[ 14615], 20.00th=[ 19268], | 30.00th=[ 23200], 40.00th=[ 26870], 50.00th=[ 31589], 60.00th=[ 37487], | 70.00th=[ 44303], 80.00th=[ 53216], 90.00th=[ 68682], 95.00th=[ 85459], | 99.00th=[125305], 99.50th=[164627], 99.90th=[187696], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 7, max= 151, per=24.89%, avg=57.75, stdev=21.94, samples=203 iops : min= 1, max= 37, avg=13.80, stdev= 5.53, samples=203 write: IOPS=15, BW=60.9KiB/s (62.4kB/s)(6296KiB/103339msec); 0 zone resets clat (usec): min=717, max=803021, avg=29409.32, stdev=36389.58 lat (usec): min=717, max=803023, avg=29417.32, stdev=36394.58 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1172], 10.00th=[ 1287], 20.00th=[ 2507], | 30.00th=[ 5604], 40.00th=[ 13173], 50.00th=[ 20841], 60.00th=[ 28181], | 70.00th=[ 36963], 80.00th=[ 50594], 90.00th=[ 70779], 95.00th=[ 87557], | 99.00th=[135267], 99.50th=[162530], 99.90th=[252707], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 15, max= 182, per=24.97%, avg=60.67, stdev=26.31, samples=203 iops : min= 3, max= 45, avg=14.54, stdev= 6.63, samples=203 lat (usec) : 50=0.23%, 100=1.17%, 250=0.10%, 750=0.03%, 1000=0.49% lat (msec) : 2=8.24%, 4=4.46%, 10=6.38%, 20=14.45%, 50=42.87% lat (msec) : 100=18.52%, 250=2.96%, 500=0.07%, 1000=0.03% cpu : usr=0.07%, sys=5.78%, ctx=6377, 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=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=180082: Mon Sep 14 20:56:55 2026 read: IOPS=14, BW=57.7KiB/s (59.1kB/s)(5940KiB/102958msec) clat (usec): min=39, max=840438, avg=37302.40, stdev=31541.52 lat (usec): min=40, max=840440, avg=37303.62, stdev=31541.56 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 9765], 10.00th=[ 14222], 20.00th=[ 19268], | 30.00th=[ 23200], 40.00th=[ 27132], 50.00th=[ 31589], 60.00th=[ 36963], | 70.00th=[ 43254], 80.00th=[ 52167], 90.00th=[ 66847], 95.00th=[ 81265], | 99.00th=[122160], 99.50th=[135267], 99.90th=[256902], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 7, max= 111, per=24.66%, avg=57.22, stdev=20.95, samples=203 iops : min= 1, max= 27, avg=13.67, stdev= 5.26, samples=203 write: IOPS=15, BW=61.7KiB/s (63.1kB/s)(6348KiB/102958msec); 0 zone resets clat (usec): min=753, max=245276, avg=29648.80, stdev=31620.70 lat (usec): min=755, max=245277, avg=29650.32, stdev=31620.84 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1549], 20.00th=[ 3425], | 30.00th=[ 6652], 40.00th=[ 13960], 50.00th=[ 21365], 60.00th=[ 28181], | 70.00th=[ 36963], 80.00th=[ 50594], 90.00th=[ 71828], 95.00th=[ 89654], | 99.00th=[145753], 99.50th=[168821], 99.90th=[231736], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 7, max= 128, per=25.34%, avg=61.58, stdev=24.68, samples=201 iops : min= 1, max= 32, avg=14.76, stdev= 6.22, samples=201 lat (usec) : 50=0.23%, 100=1.43%, 250=0.10%, 500=0.03%, 1000=0.16% lat (msec) : 2=6.71%, 4=4.85%, 10=7.45%, 20=14.58%, 50=43.20% lat (msec) : 100=18.68%, 250=2.51%, 500=0.03%, 1000=0.03% cpu : usr=0.11%, sys=5.94%, ctx=6397, 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=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=180083: Mon Sep 14 20:56:55 2026 read: IOPS=15, BW=60.3KiB/s (61.7kB/s)(6028KiB/99976msec) clat (usec): min=35, max=1026.5k, avg=37420.47, stdev=36384.83 lat (usec): min=35, max=1026.5k, avg=37425.06, stdev=36385.64 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 7242], 10.00th=[ 13304], | 20.00th=[ 17957], 30.00th=[ 22152], 40.00th=[ 26084], | 50.00th=[ 30802], 60.00th=[ 36439], 70.00th=[ 43779], | 80.00th=[ 52691], 90.00th=[ 67634], 95.00th=[ 85459], | 99.00th=[ 123208], 99.50th=[ 147850], 99.90th=[ 325059], | 99.95th=[1027605], 99.99th=[1027605] bw ( KiB/s): min= 7, max= 119, per=25.89%, avg=60.06, stdev=21.45, samples=196 iops : min= 1, max= 29, avg=14.38, stdev= 5.42, samples=196 write: IOPS=15, BW=62.6KiB/s (64.1kB/s)(6260KiB/99976msec); 0 zone resets clat (usec): min=755, max=204795, avg=27545.74, stdev=28423.65 lat (usec): min=757, max=204797, avg=27554.28, stdev=28430.52 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1172], 10.00th=[ 1336], 20.00th=[ 2442], | 30.00th=[ 5342], 40.00th=[ 11731], 50.00th=[ 20317], 60.00th=[ 26608], | 70.00th=[ 35390], 80.00th=[ 49021], 90.00th=[ 66847], 95.00th=[ 82314], | 99.00th=[121111], 99.50th=[143655], 99.90th=[187696], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 15, max= 151, per=25.81%, avg=62.73, stdev=26.67, samples=195 iops : min= 3, max= 37, avg=15.05, stdev= 6.70, samples=195 lat (usec) : 50=0.29%, 100=1.89%, 250=0.10%, 750=0.03%, 1000=0.36% lat (msec) : 2=8.27%, 4=4.72%, 10=6.90%, 20=14.65%, 50=41.47% lat (msec) : 100=18.91%, 250=2.34%, 500=0.03%, 2000=0.03% cpu : usr=0.09%, sys=5.83%, ctx=6273, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180084: Mon Sep 14 20:56:55 2026 read: IOPS=14, BW=58.5KiB/s (59.9kB/s)(6052KiB/103432msec) clat (usec): min=34, max=1062.0k, avg=38621.63, stdev=38186.63 lat (usec): min=35, max=1062.1k, avg=38623.33, stdev=38186.55 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 7242], 10.00th=[ 13435], | 20.00th=[ 17957], 30.00th=[ 22414], 40.00th=[ 26870], | 50.00th=[ 32113], 60.00th=[ 37487], 70.00th=[ 44303], | 80.00th=[ 53740], 90.00th=[ 69731], 95.00th=[ 88605], | 99.00th=[ 137364], 99.50th=[ 164627], 99.90th=[ 312476], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 7, max= 127, per=25.10%, avg=58.24, stdev=22.99, samples=203 iops : min= 1, max= 31, avg=13.93, stdev= 5.78, samples=203 write: IOPS=15, BW=60.3KiB/s (61.7kB/s)(6236KiB/103432msec); 0 zone resets clat (usec): min=728, max=203548, avg=28582.35, stdev=29255.57 lat (usec): min=728, max=203551, avg=28584.42, stdev=29255.48 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1172], 10.00th=[ 1319], 20.00th=[ 3130], | 30.00th=[ 6521], 40.00th=[ 13435], 50.00th=[ 20579], 60.00th=[ 27657], | 70.00th=[ 36963], 80.00th=[ 50594], 90.00th=[ 68682], 95.00th=[ 86508], | 99.00th=[129500], 99.50th=[143655], 99.90th=[177210], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 15, max= 151, per=24.79%, avg=60.25, stdev=24.59, samples=202 iops : min= 3, max= 37, avg=14.43, stdev= 6.20, samples=202 lat (usec) : 50=0.23%, 100=1.82%, 250=0.20%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.33% lat (msec) : 2=7.36%, 4=4.33%, 10=7.36%, 20=14.71%, 50=41.83% lat (msec) : 100=18.49%, 250=3.19%, 500=0.03%, 2000=0.03% cpu : usr=0.09%, sys=5.79%, ctx=6406, 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=232KiB/s (238kB/s), 57.7KiB/s-60.3KiB/s (59.1kB/s-61.7kB/s), io=23.4MiB (24.6MB), run=99976-103432msec WRITE: bw=243KiB/s (249kB/s), 60.3KiB/s-62.6KiB/s (61.7kB/s-64.1kB/s), io=24.6MiB (25.7MB), run=99976-103432msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180086: Mon Sep 14 20:57:33 2026 read: IOPS=10, BW=42.6KiB/s (43.6kB/s)(5992KiB/140585msec) clat (msec): min=5, max=1068, avg=36.06, stdev=41.95 lat (msec): min=5, max=1068, avg=36.06, stdev=41.95 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 49], 90.00th=[ 74], 95.00th=[ 103], | 99.00th=[ 165], 99.50th=[ 188], 99.90th=[ 292], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 158, per=25.11%, avg=42.69, stdev=27.21, samples=273 iops : min= 1, max= 39, avg=10.02, stdev= 6.84, samples=273 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(6296KiB/140585msec); 0 zone resets clat (msec): min=10, max=376, avg=54.93, stdev=37.31 lat (msec): min=10, max=376, avg=54.93, stdev=37.31 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 44], 60.00th=[ 53], | 70.00th=[ 63], 80.00th=[ 79], 90.00th=[ 105], 95.00th=[ 129], | 99.00th=[ 184], 99.50th=[ 203], 99.90th=[ 305], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 7, max= 127, per=24.97%, avg=44.44, stdev=24.76, samples=276 iops : min= 1, max= 31, avg=10.46, stdev= 6.23, samples=276 lat (msec) : 10=3.29%, 20=18.39%, 50=47.30%, 100=22.85%, 250=7.94% lat (msec) : 500=0.20%, 2000=0.03% cpu : usr=0.08%, sys=1.98%, ctx=4651, 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=180087: Mon Sep 14 20:57:33 2026 read: IOPS=10, BW=42.5KiB/s (43.5kB/s)(5940KiB/139784msec) clat (msec): min=4, max=880, avg=35.27, stdev=37.47 lat (msec): min=4, max=880, avg=35.27, stdev=37.47 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 50], 90.00th=[ 77], 95.00th=[ 99], | 99.00th=[ 157], 99.50th=[ 178], 99.90th=[ 266], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 159, per=25.81%, avg=43.87, stdev=26.71, samples=265 iops : min= 1, max= 39, avg=10.32, stdev= 6.72, samples=265 write: IOPS=11, BW=45.4KiB/s (46.5kB/s)(6348KiB/139784msec); 0 zone resets clat (msec): min=10, max=264, avg=55.00, stdev=36.33 lat (msec): min=10, max=264, avg=55.01, stdev=36.33 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 44], 60.00th=[ 52], | 70.00th=[ 63], 80.00th=[ 81], 90.00th=[ 104], 95.00th=[ 129], | 99.00th=[ 182], 99.50th=[ 211], 99.90th=[ 259], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 7, max= 150, per=25.48%, avg=45.35, stdev=24.94, samples=274 iops : min= 1, max= 37, avg=10.69, stdev= 6.28, samples=274 lat (msec) : 10=3.68%, 20=17.90%, 50=47.53%, 100=22.72%, 250=7.98% lat (msec) : 500=0.16%, 1000=0.03% cpu : usr=0.07%, sys=1.93%, ctx=4661, 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=180088: Mon Sep 14 20:57:33 2026 read: IOPS=10, BW=42.9KiB/s (43.0kB/s)(6028KiB/140416msec) clat (msec): min=5, max=322, avg=35.88, stdev=32.48 lat (msec): min=5, max=322, avg=35.88, stdev=32.48 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 78], 95.00th=[ 104], | 99.00th=[ 171], 99.50th=[ 188], 99.90th=[ 249], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 7, max= 127, per=25.38%, avg=43.15, stdev=26.09, samples=273 iops : min= 1, max= 31, avg=10.14, stdev= 6.58, samples=273 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6260KiB/140416msec); 0 zone resets clat (msec): min=10, max=882, avg=55.11, stdev=41.28 lat (msec): min=10, max=882, avg=55.11, stdev=41.28 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 53], | 70.00th=[ 63], 80.00th=[ 78], 90.00th=[ 104], 95.00th=[ 123], | 99.00th=[ 186], 99.50th=[ 218], 99.90th=[ 321], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 150, per=24.79%, avg=44.13, stdev=25.43, samples=277 iops : min= 1, max= 37, avg=10.38, stdev= 6.39, samples=277 lat (msec) : 10=2.70%, 20=19.17%, 50=46.71%, 100=23.31%, 250=7.94% lat (msec) : 500=0.13%, 1000=0.03% cpu : usr=0.06%, sys=1.96%, ctx=4620, 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=180089: Mon Sep 14 20:57:33 2026 read: IOPS=10, BW=43.1KiB/s (44.1kB/s)(6052KiB/140561msec) clat (msec): min=4, max=268, avg=36.11, stdev=32.80 lat (msec): min=4, max=268, avg=36.12, stdev=32.80 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 53], 90.00th=[ 81], 95.00th=[ 105], | 99.00th=[ 163], 99.50th=[ 178], 99.90th=[ 253], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 7, max= 136, per=25.92%, avg=44.06, stdev=27.00, samples=268 iops : min= 1, max= 34, avg=10.37, stdev= 6.80, samples=268 write: IOPS=11, BW=44.4KiB/s (45.4kB/s)(6236KiB/140561msec); 0 zone resets clat (msec): min=10, max=912, avg=55.04, stdev=43.56 lat (msec): min=10, max=912, avg=55.04, stdev=43.56 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 36], 50.00th=[ 43], 60.00th=[ 51], | 70.00th=[ 62], 80.00th=[ 80], 90.00th=[ 105], 95.00th=[ 126], | 99.00th=[ 190], 99.50th=[ 228], 99.90th=[ 388], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 127, per=24.70%, avg=43.96, stdev=24.82, samples=276 iops : min= 1, max= 31, avg=10.34, stdev= 6.25, samples=276 lat (msec) : 10=3.29%, 20=19.50%, 50=46.32%, 100=22.43%, 250=8.24% lat (msec) : 500=0.20%, 1000=0.03% cpu : usr=0.07%, sys=1.88%, ctx=4711, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=171KiB/s (175kB/s), 42.5KiB/s-43.1KiB/s (43.5kB/s-44.1kB/s), io=23.4MiB (24.6MB), run=139784-140585msec WRITE: bw=179KiB/s (183kB/s), 44.4KiB/s-45.4KiB/s (45.4kB/s-46.5kB/s), io=24.6MiB (25.7MB), run=139784-140585msec 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=180124: Mon Sep 14 20:58:16 2026 read: IOPS=10, BW=176KiB/s (180kB/s)(5920KiB/33707msec) clat (usec): min=34, max=258766, avg=50768.37, stdev=37739.34 lat (usec): min=35, max=258767, avg=50769.52, stdev=37739.39 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 60], 10.00th=[ 111], 20.00th=[ 22152], | 30.00th=[ 31065], 40.00th=[ 38011], 50.00th=[ 45876], 60.00th=[ 51119], | 70.00th=[ 60556], 80.00th=[ 74974], 90.00th=[ 99091], 95.00th=[117965], | 99.00th=[179307], 99.50th=[198181], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 31, max= 319, per=24.61%, avg=171.52, stdev=57.63, samples=66 iops : min= 1, max= 19, avg= 9.92, stdev= 3.63, samples=66 write: IOPS=11, BW=189KiB/s (193kB/s)(6368KiB/33707msec); 0 zone resets clat (usec): min=1038, max=256282, avg=36918.31, stdev=37798.97 lat (usec): min=1039, max=256284, avg=36920.43, stdev=37798.92 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1778], 10.00th=[ 2606], 20.00th=[ 5080], | 30.00th=[ 10814], 40.00th=[ 18482], 50.00th=[ 27132], 60.00th=[ 35390], | 70.00th=[ 45351], 80.00th=[ 61604], 90.00th=[ 86508], 95.00th=[112722], | 99.00th=[181404], 99.50th=[206570], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 31, max= 475, per=25.46%, avg=186.89, stdev=82.13, samples=66 iops : min= 1, max= 29, avg=10.89, stdev= 5.22, samples=66 lat (usec) : 50=0.91%, 100=3.78%, 250=0.39% lat (msec) : 2=4.30%, 4=4.56%, 10=6.77%, 20=9.90%, 50=35.16% lat (msec) : 100=25.91%, 250=8.07%, 500=0.26% cpu : usr=0.07%, sys=5.38%, ctx=1602, 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=180125: Mon Sep 14 20:58:16 2026 read: IOPS=10, BW=171KiB/s (175kB/s)(5744KiB/33560msec) clat (usec): min=43, max=262562, avg=48925.44, stdev=33844.76 lat (usec): min=43, max=262563, avg=48926.53, stdev=33844.81 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 60], 10.00th=[ 163], 20.00th=[ 24511], | 30.00th=[ 31065], 40.00th=[ 38536], 50.00th=[ 45876], 60.00th=[ 52167], | 70.00th=[ 61604], 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[102237], | 99.00th=[173016], 99.50th=[179307], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 27, max= 348, per=24.50%, avg=170.77, stdev=66.10, samples=66 iops : min= 1, max= 21, avg= 9.88, stdev= 4.18, samples=66 write: IOPS=12, BW=195KiB/s (200kB/s)(6544KiB/33560msec); 0 zone resets clat (usec): min=1088, max=189200, avg=38704.50, stdev=37911.54 lat (usec): min=1090, max=189203, avg=38717.33, stdev=37917.80 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1745], 10.00th=[ 2245], 20.00th=[ 4948], | 30.00th=[ 10552], 40.00th=[ 16909], 50.00th=[ 28967], 60.00th=[ 38536], | 70.00th=[ 50070], 80.00th=[ 66847], 90.00th=[ 94897], 95.00th=[119014], | 99.00th=[168821], 99.50th=[173016], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 60, max= 415, per=26.52%, avg=194.67, stdev=92.68, samples=66 iops : min= 3, max= 25, avg=11.38, stdev= 5.81, samples=66 lat (usec) : 50=0.26%, 100=4.17%, 250=0.65% lat (msec) : 2=4.43%, 4=4.82%, 10=6.77%, 20=10.03%, 50=31.90% lat (msec) : 100=29.82%, 250=7.03%, 500=0.13% cpu : usr=0.05%, sys=5.53%, ctx=1645, 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=180126: Mon Sep 14 20:58:16 2026 read: IOPS=11, BW=182KiB/s (187kB/s)(6256KiB/34330msec) clat (usec): min=40, max=236696, avg=49516.26, stdev=36459.66 lat (usec): min=40, max=236697, avg=49518.67, stdev=36459.44 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 60], 10.00th=[ 114], 20.00th=[ 23462], | 30.00th=[ 30802], 40.00th=[ 37487], 50.00th=[ 42730], 60.00th=[ 50070], | 70.00th=[ 60031], 80.00th=[ 73925], 90.00th=[ 92799], 95.00th=[115868], | 99.00th=[187696], 99.50th=[212861], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 62, max= 414, per=26.16%, avg=182.31, stdev=69.39, samples=67 iops : min= 3, max= 25, avg=10.60, stdev= 4.38, samples=67 write: IOPS=10, BW=176KiB/s (180kB/s)(6032KiB/34330msec); 0 zone resets clat (usec): min=1107, max=198254, avg=38936.67, stdev=38591.74 lat (usec): min=1108, max=198256, avg=38938.70, stdev=38591.79 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1909], 10.00th=[ 2933], 20.00th=[ 6259], | 30.00th=[ 10421], 40.00th=[ 16450], 50.00th=[ 24511], 60.00th=[ 37487], | 70.00th=[ 53216], 80.00th=[ 70779], 90.00th=[ 99091], 95.00th=[115868], | 99.00th=[152044], 99.50th=[187696], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 31, max= 319, per=23.89%, avg=175.38, stdev=73.27, samples=66 iops : min= 1, max= 19, avg=10.17, stdev= 4.61, samples=66 lat (usec) : 50=0.52%, 100=4.56%, 250=0.26%, 750=0.13% lat (msec) : 2=2.73%, 4=4.17%, 10=7.68%, 20=10.03%, 50=34.38% lat (msec) : 100=26.82%, 250=8.72% cpu : usr=0.08%, sys=4.99%, ctx=1638, 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=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=180128: Mon Sep 14 20:58:16 2026 read: IOPS=11, BW=183KiB/s (187kB/s)(6032KiB/33045msec) clat (usec): min=36, max=237037, avg=46184.35, stdev=30951.48 lat (usec): min=36, max=237038, avg=46185.59, stdev=30951.55 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 72], 20.00th=[ 22676], | 30.00th=[ 29492], 40.00th=[ 36439], 50.00th=[ 43779], 60.00th=[ 50070], | 70.00th=[ 58983], 80.00th=[ 68682], 90.00th=[ 84411], 95.00th=[ 95945], | 99.00th=[135267], 99.50th=[143655], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 31, max= 378, per=25.96%, avg=180.97, stdev=74.94, samples=65 iops : min= 1, max= 23, avg=10.52, stdev= 4.72, samples=65 write: IOPS=11, BW=189KiB/s (194kB/s)(6256KiB/33045msec); 0 zone resets clat (usec): min=1405, max=195164, avg=39828.82, stdev=39362.58 lat (usec): min=1406, max=195166, avg=39834.54, stdev=39359.49 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1860], 10.00th=[ 3458], 20.00th=[ 7832], | 30.00th=[ 11469], 40.00th=[ 17433], 50.00th=[ 24773], 60.00th=[ 36963], | 70.00th=[ 53216], 80.00th=[ 69731], 90.00th=[ 99091], 95.00th=[119014], | 99.00th=[162530], 99.50th=[187696], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 61, max= 475, per=25.77%, avg=189.18, stdev=80.33, samples=65 iops : min= 3, max= 29, avg=11.05, stdev= 5.08, samples=65 lat (usec) : 50=0.65%, 100=5.21%, 750=0.13% lat (msec) : 2=3.12%, 4=2.73%, 10=7.55%, 20=11.59%, 50=33.33% lat (msec) : 100=28.91%, 250=6.77% cpu : usr=0.06%, sys=5.31%, ctx=1651, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=698KiB/s (714kB/s), 171KiB/s-183KiB/s (175kB/s-187kB/s), io=23.4MiB (24.5MB), run=33045-34330msec WRITE: bw=734KiB/s (752kB/s), 176KiB/s-195KiB/s (180kB/s-200kB/s), io=24.6MiB (25.8MB), run=33045-34330msec fio: pid=180130, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=180127: Mon Sep 14 20:58:27 2026 read: IOPS=8, BW=131KiB/s (135kB/s)(5920KiB/45068msec) clat (msec): min=5, max=288, avg=48.20, stdev=44.19 lat (msec): min=5, max=288, avg=48.20, stdev=44.19 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 27], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 51], 80.00th=[ 75], 90.00th=[ 107], 95.00th=[ 142], | 99.00th=[ 209], 99.50th=[ 236], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 28, max= 510, per=26.06%, avg=132.62, stdev=98.82, samples=88 iops : min= 1, max= 31, avg= 7.52, stdev= 6.21, samples=88 write: IOPS=8, BW=141KiB/s (145kB/s)(6368KiB/45068msec); 0 zone resets clat (msec): min=9, max=340, avg=67.30, stdev=47.58 lat (msec): min=9, max=340, avg=67.30, stdev=47.58 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 64], | 70.00th=[ 84], 80.00th=[ 104], 90.00th=[ 136], 95.00th=[ 161], | 99.00th=[ 222], 99.50th=[ 292], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 30, max= 384, per=26.98%, avg=145.95, stdev=94.73, samples=86 iops : min= 1, max= 24, avg= 8.36, stdev= 5.96, samples=86 lat (msec) : 10=2.34%, 20=14.45%, 50=42.45%, 100=24.74%, 250=15.63% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=1.64%, ctx=1229, 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=180129: Mon Sep 14 20:58:27 2026 read: IOPS=7, BW=128KiB/s (131kB/s)(5744KiB/44972msec) clat (msec): min=6, max=219, avg=44.13, stdev=37.43 lat (msec): min=6, max=219, avg=44.14, stdev=37.43 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 50], 80.00th=[ 65], 90.00th=[ 106], 95.00th=[ 136], | 99.00th=[ 163], 99.50th=[ 182], 99.90th=[ 220], 99.95th=[ 220], | 99.99th=[ 220] bw ( KiB/s): min= 28, max= 448, per=27.27%, avg=138.79, stdev=97.82, samples=80 iops : min= 1, max= 28, avg= 7.90, stdev= 6.18, samples=80 write: IOPS=9, BW=146KiB/s (149kB/s)(6544KiB/44972msec); 0 zone resets clat (msec): min=9, max=296, avg=71.01, stdev=50.84 lat (msec): min=9, max=296, avg=71.01, stdev=50.84 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 54], 60.00th=[ 69], | 70.00th=[ 88], 80.00th=[ 111], 90.00th=[ 144], 95.00th=[ 171], | 99.00th=[ 232], 99.50th=[ 255], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 447, per=26.32%, avg=142.38, stdev=90.67, samples=88 iops : min= 1, max= 27, avg= 8.15, stdev= 5.73, samples=88 lat (msec) : 10=1.95%, 20=14.71%, 50=40.89%, 100=24.87%, 250=17.06% lat (msec) : 500=0.52% cpu : usr=0.03%, sys=1.63%, ctx=1182, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=180130: Mon Sep 14 20:58:27 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(5264KiB/42440msec) clat (msec): min=8, max=284, avg=51.42, stdev=45.93 lat (msec): min=8, max=284, avg=51.42, stdev=45.93 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 36], 60.00th=[ 43], | 70.00th=[ 57], 80.00th=[ 72], 90.00th=[ 118], 95.00th=[ 144], | 99.00th=[ 218], 99.50th=[ 279], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 30, max= 380, per=24.34%, avg=123.88, stdev=77.24, samples=82 iops : min= 1, max= 23, avg= 6.99, stdev= 4.89, samples=82 write: IOPS=7, BW=123KiB/s (126kB/s)(5216KiB/42440msec); 0 zone resets clat (msec): min=13, max=344, avg=77.50, stdev=49.24 lat (msec): min=13, max=344, avg=77.50, stdev=49.24 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 37], | 30.00th=[ 45], 40.00th=[ 52], 50.00th=[ 65], 60.00th=[ 77], | 70.00th=[ 95], 80.00th=[ 113], 90.00th=[ 140], 95.00th=[ 169], | 99.00th=[ 236], 99.50th=[ 268], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 31, max= 411, per=23.24%, avg=125.75, stdev=71.86, samples=80 iops : min= 1, max= 25, avg= 7.11, stdev= 4.51, samples=80 lat (msec) : 10=1.07%, 20=9.15%, 50=42.07%, 100=27.74%, 250=18.90% lat (msec) : 500=0.91% cpu : usr=0.04%, sys=1.45%, ctx=973, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=330,326,0,0 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=180131: Mon Sep 14 20:58:27 2026 read: IOPS=8, BW=134KiB/s (137kB/s)(6032KiB/44951msec) clat (msec): min=5, max=283, avg=46.55, stdev=41.99 lat (msec): min=5, max=283, avg=46.55, stdev=41.99 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 67], 90.00th=[ 105], 95.00th=[ 144], | 99.00th=[ 213], 99.50th=[ 222], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 415, per=27.22%, avg=138.57, stdev=89.15, samples=84 iops : min= 1, max= 25, avg= 7.90, stdev= 5.62, samples=84 write: IOPS=8, BW=139KiB/s (143kB/s)(6256KiB/44951msec); 0 zone resets clat (msec): min=11, max=299, avg=69.03, stdev=47.39 lat (msec): min=11, max=299, avg=69.03, stdev=47.39 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 45], 50.00th=[ 55], 60.00th=[ 67], | 70.00th=[ 82], 80.00th=[ 101], 90.00th=[ 140], 95.00th=[ 165], | 99.00th=[ 213], 99.50th=[ 264], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 28, max= 415, per=25.35%, avg=137.14, stdev=88.35, samples=88 iops : min= 1, max= 25, avg= 7.82, stdev= 5.56, samples=88 lat (msec) : 10=2.34%, 20=12.63%, 50=43.75%, 100=25.65%, 250=15.10% lat (msec) : 500=0.52% cpu : usr=0.03%, sys=1.65%, ctx=1184, 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=509KiB/s (522kB/s), 124KiB/s-134KiB/s (127kB/s-137kB/s), io=22.4MiB (23.5MB), run=42440-45068msec WRITE: bw=541KiB/s (554kB/s), 123KiB/s-146KiB/s (126kB/s-149kB/s), io=23.8MiB (24.0MB), run=42440-45068msec 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=180145: Mon Sep 14 20:58:40 2026 read: IOPS=2, BW=2971KiB/s (3042kB/s)(7168KiB/2413msec) clat (msec): min=77, max=299, avg=157.95, stdev=78.53 lat (msec): min=77, max=299, avg=157.95, stdev=78.53 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 86], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 129], 60.00th=[ 174], | 70.00th=[ 174], 80.00th=[ 215], 90.00th=[ 300], 95.00th=[ 300], | 99.00th=[ 300], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 1721, max= 5953, per=53.08%, avg=2920.50, stdev=2026.31, samples=4 iops : min= 1, max= 5, avg= 2.00, stdev= 2.00, samples=4 write: IOPS=2, BW=2122KiB/s (2173kB/s)(5120KiB/2413msec); 0 zone resets clat (msec): min=126, max=320, avg=220.71, stdev=85.31 lat (msec): min=127, max=320, avg=220.80, stdev=85.30 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 128], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 259], 60.00th=[ 259], | 70.00th=[ 262], 80.00th=[ 262], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 1984, max= 3442, per=32.32%, avg=2489.67, stdev=825.27, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=16.67%, 250=50.00%, 500=33.33% cpu : usr=0.00%, sys=4.93%, ctx=64, 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=180146: Mon Sep 14 20:58:40 2026 read: IOPS=0, BW=580KiB/s (594kB/s)(2048KiB/3530msec) clat (msec): min=76, max=141, avg=108.99, stdev=46.14 lat (msec): min=76, max=141, avg=108.99, stdev=46.14 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 77], | 30.00th=[ 77], 40.00th=[ 77], 50.00th=[ 77], 60.00th=[ 142], | 70.00th=[ 142], 80.00th=[ 142], 90.00th=[ 142], 95.00th=[ 142], | 99.00th=[ 142], 99.50th=[ 142], 99.90th=[ 142], 99.95th=[ 142], | 99.99th=[ 142] bw ( KiB/s): min= 1822, max= 2031, per=35.01%, avg=1926.50, stdev=147.79, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2901KiB/s (2970kB/s)(10.0MiB/3530msec); 0 zone resets clat (msec): min=122, max=526, avg=316.42, stdev=136.99 lat (msec): min=123, max=526, avg=316.53, stdev=136.98 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 159], | 30.00th=[ 207], 40.00th=[ 234], 50.00th=[ 313], 60.00th=[ 330], | 70.00th=[ 388], 80.00th=[ 393], 90.00th=[ 498], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1721, max= 4087, per=34.01%, avg=2620.00, stdev=1132.85, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 100=8.33%, 250=41.67%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=8.02%, ctx=114, 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=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=180148: Mon Sep 14 20:58:40 2026 read: IOPS=1, BW=1651KiB/s (1690kB/s)(6144KiB/3722msec) clat (msec): min=68, max=425, avg=227.19, stdev=146.97 lat (msec): min=68, max=425, avg=227.19, stdev=146.97 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 70], | 30.00th=[ 70], 40.00th=[ 211], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 3442, max= 4087, per=68.42%, avg=3764.50, stdev=456.08, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1651KiB/s (1690kB/s)(6144KiB/3722msec); 0 zone resets clat (msec): min=216, max=660, avg=384.05, stdev=185.80 lat (msec): min=216, max=660, avg=384.81, stdev=186.36 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 435], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1692, max= 2043, per=25.15%, avg=1937.50, stdev=165.64, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=7.26%, 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=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=180151: Mon Sep 14 20:58:40 2026 read: IOPS=2, BW=2150KiB/s (2202kB/s)(5120KiB/2381msec) clat (msec): min=80, max=212, avg=130.02, stdev=51.03 lat (msec): min=80, max=212, avg=130.03, stdev=51.03 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 81], | 30.00th=[ 102], 40.00th=[ 102], 50.00th=[ 115], 60.00th=[ 115], | 70.00th=[ 142], 80.00th=[ 142], 90.00th=[ 213], 95.00th=[ 213], | 99.00th=[ 213], 99.50th=[ 213], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=3010KiB/s (3083kB/s)(7168KiB/2381msec); 0 zone resets clat (msec): min=129, max=407, avg=224.99, stdev=105.32 lat (msec): min=129, max=407, avg=225.07, stdev=105.31 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 136], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 199], 60.00th=[ 207], | 70.00th=[ 207], 80.00th=[ 334], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 3373, max= 3968, per=46.66%, avg=3594.33, stdev=325.44, samples=3 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=3 lat (msec) : 100=8.33%, 250=75.00%, 500=16.67% cpu : usr=0.00%, sys=4.50%, ctx=55, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5502KiB/s (5634kB/s), 580KiB/s-2971KiB/s (594kB/s-3042kB/s), io=20.0MiB (20.0MB), run=2381-3722msec WRITE: bw=7703KiB/s (7888kB/s), 1651KiB/s-3010KiB/s (1690kB/s-3083kB/s), io=28.0MiB (29.4MB), run=2381-3722msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180147: Mon Sep 14 20:58:40 2026 read: IOPS=2, BW=2580KiB/s (2642kB/s)(7168KiB/2778msec) clat (usec): min=691, max=270452, avg=146520.70, stdev=85004.73 lat (usec): min=692, max=270454, avg=146522.11, stdev=85004.81 clat percentiles (usec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[105382], | 30.00th=[111674], 40.00th=[111674], 50.00th=[158335], 60.00th=[187696], | 70.00th=[187696], 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= 1700, max= 4096, per=52.71%, avg=2965.50, stdev=1275.49, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=1, BW=1843KiB/s (1887kB/s)(5120KiB/2778msec); 0 zone resets clat (msec): min=148, max=577, avg=285.54, stdev=172.58 lat (msec): min=148, max=580, avg=286.35, stdev=173.79 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 148], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 218], 60.00th=[ 218], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1822, max= 4071, per=33.61%, avg=2647.00, stdev=1238.39, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=66.67%, 500=16.67%, 750=8.33% cpu : usr=0.00%, sys=13.83%, ctx=142, 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=180149: Mon Sep 14 20:58:40 2026 read: IOPS=0, BW=563KiB/s (576kB/s)(2048KiB/3640msec) clat (usec): min=1825, max=508315, avg=255070.25, stdev=358142.86 lat (usec): min=1825, max=508318, avg=255071.92, stdev=358144.16 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 1827], 10.00th=[ 1827], 20.00th=[ 1827], | 30.00th=[ 1827], 40.00th=[ 1827], 50.00th=[ 1827], 60.00th=[509608], | 70.00th=[509608], 80.00th=[509608], 90.00th=[509608], 95.00th=[509608], | 99.00th=[509608], 99.50th=[509608], 99.90th=[509608], 99.95th=[509608], | 99.99th=[509608] bw ( KiB/s): min= 2035, max= 2048, per=36.29%, avg=2041.50, stdev= 9.19, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2813KiB/s (2881kB/s)(10.0MiB/3640msec); 0 zone resets clat (msec): min=149, max=537, avg=282.90, stdev=155.53 lat (msec): min=149, max=537, avg=283.59, stdev=155.07 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 215], | 70.00th=[ 241], 80.00th=[ 439], 90.00th=[ 531], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1822, max= 4071, per=35.57%, avg=2801.40, stdev=1144.33, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (msec) : 2=8.33%, 250=58.33%, 500=8.33%, 750=25.00% cpu : usr=0.00%, sys=15.55%, ctx=131, 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=180150: Mon Sep 14 20:58:40 2026 read: IOPS=2, BW=2069KiB/s (2119kB/s)(6144KiB/2969msec) clat (usec): min=386, max=301148, avg=87003.11, stdev=125687.67 lat (usec): min=387, max=301150, avg=87004.37, stdev=125687.91 clat percentiles (usec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 578], | 30.00th=[ 578], 40.00th=[ 2671], 50.00th=[ 2671], 60.00th=[ 37487], | 70.00th=[179307], 80.00th=[179307], 90.00th=[299893], 95.00th=[299893], | 99.00th=[299893], 99.50th=[299893], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 2035, max= 4031, per=57.53%, avg=3236.67, stdev=1058.51, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=2, BW=2069KiB/s (2119kB/s)(6144KiB/2969msec); 0 zone resets clat (msec): min=253, max=689, avg=390.16, stdev=160.42 lat (msec): min=253, max=689, avg=390.66, stdev=160.14 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 405], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 1822, max= 2048, per=24.84%, avg=1956.20, stdev=106.26, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 4=8.33%, 50=8.33%, 250=8.33%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=13.21%, ctx=109, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180152: Mon Sep 14 20:58:40 2026 read: IOPS=1, BW=1983KiB/s (2031kB/s)(5120KiB/2582msec) clat (usec): min=519, max=198544, avg=47727.98, stdev=85875.24 lat (usec): min=520, max=198545, avg=47729.06, stdev=85875.18 clat percentiles (usec): | 1.00th=[ 519], 5.00th=[ 519], 10.00th=[ 519], 20.00th=[ 519], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 38536], 80.00th=[ 38536], 90.00th=[198181], 95.00th=[198181], | 99.00th=[198181], 99.50th=[198181], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 7288, max= 7288, per=100.00%, avg=7288.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2776KiB/s (2843kB/s)(7168KiB/2582msec); 0 zone resets clat (msec): min=168, max=605, avg=298.10, stdev=155.73 lat (msec): min=168, max=605, avg=298.20, stdev=155.74 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 176], | 30.00th=[ 201], 40.00th=[ 201], 50.00th=[ 253], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 384], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1741, max= 4031, per=30.61%, avg=2410.50, stdev=1088.12, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 750=25.00% lat (msec) : 50=8.33%, 250=33.33%, 500=25.00%, 750=8.33% cpu : usr=0.04%, sys=17.05%, ctx=136, 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=5626KiB/s (5761kB/s), 563KiB/s-2580KiB/s (576kB/s-2642kB/s), io=20.0MiB (20.0MB), run=2582-3640msec WRITE: bw=7877KiB/s (8066kB/s), 1843KiB/s-2813KiB/s (1887kB/s-2881kB/s), io=28.0MiB (29.4MB), run=2582-3640msec 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=180159: Mon Sep 14 20:58:53 2026 read: IOPS=1, BW=4768KiB/s (4883kB/s)(12.0MiB/2577msec) clat (msec): min=608, max=968, avg=757.42, stdev=187.55 lat (msec): min=608, max=968, avg=757.42, stdev=187.55 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, 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=4.19%, ctx=67, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180161: Mon Sep 14 20:58:53 2026 read: IOPS=0, BW=3457KiB/s (3539kB/s)(4096KiB/1185msec) clat (nsec): min=329622k, max=329622k, avg=329621747.00, stdev= 0.00 lat (nsec): min=329625k, max=329625k, avg=329625326.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 6460, max= 6460, per=100.00%, avg=6460.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=6913KiB/s (7079kB/s)(8192KiB/1185msec); 0 zone resets clat (msec): min=155, max=441, avg=298.63, stdev=202.53 lat (msec): min=155, max=442, avg=299.07, stdev=202.70 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 7846, max= 7846, per=74.40%, avg=7846.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=66.67% cpu : usr=0.00%, sys=8.45%, ctx=64, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180162: Mon Sep 14 20:58:53 2026 write: IOPS=0, BW=3955KiB/s (4050kB/s)(12.0MiB/3107msec); 0 zone resets clat (msec): min=291, max=2021, avg=945.09, stdev=939.57 lat (msec): min=292, max=2022, avg=945.61, stdev=939.73 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 2022], 80.00th=[ 2022], 90.00th=[ 2022], 95.00th=[ 2022], | 99.00th=[ 2022], 99.50th=[ 2022], 99.90th=[ 2022], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 8159, max= 8159, per=77.37%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=5.02%, ctx=114, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180163: Mon Sep 14 20:58:53 2026 write: IOPS=1, BW=4739KiB/s (4853kB/s)(12.0MiB/2593msec); 0 zone resets clat (msec): min=255, max=1737, avg=770.70, stdev=837.53 lat (msec): min=256, max=1740, avg=772.06, stdev=839.08 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 255], | 30.00th=[ 255], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 1737], 80.00th=[ 1737], 90.00th=[ 1737], 95.00th=[ 1737], | 99.00th=[ 1737], 99.50th=[ 1737], 99.90th=[ 1737], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 6532, max= 7846, per=68.17%, avg=7189.00, stdev=929.14, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.17%, ctx=167, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6358KiB/s (6510kB/s), 3457KiB/s-4768KiB/s (3539kB/s-4883kB/s), io=16.0MiB (16.8MB), run=1185-2577msec WRITE: bw=10.3MiB/s (10.8MB/s), 3955KiB/s-6913KiB/s (4050kB/s-7079kB/s), io=32.0MiB (33.6MB), run=1185-3107msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180164: Mon Sep 14 20:58:53 2026 read: IOPS=1, BW=6337KiB/s (6489kB/s)(12.0MiB/1939msec) clat (msec): min=561, max=654, avg=593.06, stdev=53.61 lat (msec): min=561, max=654, avg=593.06, stdev=53.61 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 8047, max= 8159, per=100.00%, avg=8103.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=13.11%, ctx=435, 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=180165: Mon Sep 14 20:58:53 2026 read: IOPS=0, BW=1864KiB/s (1908kB/s)(4096KiB/2198msec) clat (nsec): min=616391k, max=616391k, avg=616391002.00, stdev= 0.00 lat (nsec): min=616394k, max=616394k, avg=616393664.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3727KiB/s (3816kB/s)(8192KiB/2198msec); 0 zone resets clat (msec): min=416, max=998, avg=707.75, stdev=411.22 lat (msec): min=418, max=998, avg=708.69, stdev=410.44 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 1003], | 70.00th=[ 1003], 80.00th=[ 1003], 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= 8159, max= 8159, per=68.92%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=5.60%, ctx=98, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180166: Mon Sep 14 20:58:53 2026 write: IOPS=1, BW=4439KiB/s (4546kB/s)(12.0MiB/2768msec); 0 zone resets clat (msec): min=195, max=2211, avg=891.30, stdev=1143.70 lat (msec): min=195, max=2211, avg=892.78, stdev=1142.81 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 268], 50.00th=[ 268], 60.00th=[ 268], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min=16384, max=16384, per=100.00%, avg=16384.00, stdev= 0.00, samples=1 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.61%, ctx=44, 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=180167: Mon Sep 14 20:58:53 2026 write: IOPS=1, BW=4819KiB/s (4934kB/s)(12.0MiB/2550msec); 0 zone resets clat (msec): min=599, max=1023, avg=809.52, stdev=212.08 lat (msec): min=599, max=1025, avg=811.23, stdev=212.63 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 1028], 80.00th=[ 1028], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 8143, max= 8159, per=68.85%, avg=8151.00, stdev=11.31, 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=0.04%, sys=4.35%, ctx=50, 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=7454KiB/s (7633kB/s), 1864KiB/s-6337KiB/s (1908kB/s-6489kB/s), io=16.0MiB (16.8MB), run=1939-2198msec WRITE: bw=11.6MiB/s (12.1MB/s), 3727KiB/s-4819KiB/s (3816kB/s-4934kB/s), io=32.0MiB (33.6MB), run=2198-2768msec