== sanity test 398b: DIO and buffer IO race ============== 14:27:31 (1788546451) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.88002 s, 7.3 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=179663: Fri Sep 4 14:29:58 2026 read: IOPS=11, BW=47.9KiB/s (49.0kB/s)(5992KiB/125161msec) clat (usec): min=33, max=327947, avg=45287.04, stdev=29752.76 lat (usec): min=33, max=327948, avg=45290.93, stdev=29752.08 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 12125], 10.00th=[ 16909], 20.00th=[ 23462], | 30.00th=[ 28705], 40.00th=[ 33162], 50.00th=[ 39060], 60.00th=[ 45876], | 70.00th=[ 53740], 80.00th=[ 64750], 90.00th=[ 80217], 95.00th=[ 98042], | 99.00th=[145753], 99.50th=[177210], 99.90th=[299893], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 7, max= 104, per=25.12%, avg=47.48, stdev=17.49, samples=246 iops : min= 1, max= 26, avg=11.26, stdev= 4.39, samples=246 write: IOPS=12, BW=50.3KiB/s (51.5kB/s)(6296KiB/125161msec); 0 zone resets clat (usec): min=934, max=849168, avg=36117.01, stdev=41900.78 lat (usec): min=935, max=849170, avg=36124.80, stdev=41897.29 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1254], 10.00th=[ 1696], 20.00th=[ 3752], | 30.00th=[ 7504], 40.00th=[ 16188], 50.00th=[ 25822], 60.00th=[ 35390], | 70.00th=[ 46400], 80.00th=[ 61080], 90.00th=[ 86508], 95.00th=[109577], | 99.00th=[156238], 99.50th=[177210], 99.90th=[299893], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 150, per=25.32%, avg=50.14, stdev=23.20, samples=245 iops : min= 1, max= 37, avg=11.93, stdev= 5.84, samples=245 lat (usec) : 50=0.33%, 100=1.33%, 500=0.07%, 750=0.07%, 1000=0.07% lat (msec) : 2=6.15%, 4=4.39%, 10=6.84%, 20=9.44%, 50=40.92% lat (msec) : 100=24.74%, 250=5.53%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=5.21%, ctx=6523, 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=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=179664: Fri Sep 4 14:29:58 2026 read: IOPS=11, BW=47.9KiB/s (49.0kB/s)(5940KiB/124071msec) clat (usec): min=27, max=245958, avg=45003.93, stdev=29507.39 lat (usec): min=27, max=245959, avg=45007.90, stdev=29509.57 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 11469], 10.00th=[ 17171], 20.00th=[ 22938], | 30.00th=[ 27395], 40.00th=[ 32375], 50.00th=[ 38536], 60.00th=[ 45876], | 70.00th=[ 54789], 80.00th=[ 64750], 90.00th=[ 80217], 95.00th=[ 93848], | 99.00th=[160433], 99.50th=[175113], 99.90th=[238027], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 7, max= 95, per=25.18%, avg=47.58, stdev=17.70, samples=244 iops : min= 1, max= 23, avg=11.29, stdev= 4.47, samples=244 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(6348KiB/124071msec); 0 zone resets clat (usec): min=911, max=902579, avg=35712.29, stdev=42585.36 lat (usec): min=913, max=902580, avg=35715.21, stdev=42584.90 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1303], 10.00th=[ 1958], 20.00th=[ 3982], | 30.00th=[ 7373], 40.00th=[ 14877], 50.00th=[ 25035], 60.00th=[ 34341], | 70.00th=[ 45351], 80.00th=[ 61604], 90.00th=[ 86508], 95.00th=[104334], | 99.00th=[158335], 99.50th=[189793], 99.90th=[258999], 99.95th=[901776], | 99.99th=[901776] bw ( KiB/s): min= 15, max= 109, per=25.62%, avg=50.73, stdev=19.75, samples=244 iops : min= 3, max= 27, avg=12.09, stdev= 4.97, samples=244 lat (usec) : 50=0.23%, 100=1.40%, 250=0.20%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.24%, 4=5.08%, 10=7.81%, 20=10.38%, 50=38.35% lat (msec) : 100=26.27%, 250=4.72%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=5.33%, ctx=6540, 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=179665: Fri Sep 4 14:29:58 2026 read: IOPS=11, BW=47.7KiB/s (48.8kB/s)(6028KiB/126446msec) clat (usec): min=34, max=930718, avg=46081.94, stdev=37774.93 lat (usec): min=34, max=930719, avg=46083.60, stdev=37774.87 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 10159], 10.00th=[ 16450], 20.00th=[ 22938], | 30.00th=[ 27657], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 54789], 80.00th=[ 64226], 90.00th=[ 83362], 95.00th=[101188], | 99.00th=[154141], 99.50th=[177210], 99.90th=[258999], 99.95th=[926942], | 99.99th=[926942] bw ( KiB/s): min= 7, max= 108, per=25.06%, avg=47.37, stdev=18.93, samples=249 iops : min= 1, max= 27, avg=11.23, stdev= 4.78, samples=249 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(6260KiB/126446msec); 0 zone resets clat (usec): min=978, max=210009, avg=36121.71, stdev=36490.23 lat (usec): min=979, max=210010, avg=36127.06, stdev=36489.78 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1713], 20.00th=[ 3818], | 30.00th=[ 7832], 40.00th=[ 18220], 50.00th=[ 27132], 60.00th=[ 35390], | 70.00th=[ 47449], 80.00th=[ 61604], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[156238], 99.50th=[181404], 99.90th=[204473], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 7, max= 112, per=24.80%, avg=49.11, stdev=20.45, samples=249 iops : min= 1, max= 28, avg=11.68, stdev= 5.16, samples=249 lat (usec) : 50=0.39%, 100=1.40%, 250=0.26%, 750=0.07%, 1000=0.13% lat (msec) : 2=5.66%, 4=4.72%, 10=6.90%, 20=9.47%, 50=40.23% lat (msec) : 100=24.71%, 250=5.99%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.23%, ctx=6509, 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=179667: Fri Sep 4 14:29:58 2026 read: IOPS=12, BW=49.0KiB/s (50.2kB/s)(6052KiB/123398msec) clat (usec): min=42, max=920401, avg=44675.77, stdev=35776.68 lat (usec): min=43, max=920403, avg=44677.35, stdev=35776.66 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 215], 10.00th=[ 16188], 20.00th=[ 22414], | 30.00th=[ 27132], 40.00th=[ 32637], 50.00th=[ 38536], 60.00th=[ 45351], | 70.00th=[ 54264], 80.00th=[ 64226], 90.00th=[ 79168], 95.00th=[ 95945], | 99.00th=[135267], 99.50th=[158335], 99.90th=[235930], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 7, max= 95, per=25.80%, avg=48.76, stdev=15.85, samples=243 iops : min= 1, max= 23, avg=11.58, stdev= 3.98, samples=243 write: IOPS=12, BW=50.5KiB/s (51.7kB/s)(6236KiB/123398msec); 0 zone resets clat (usec): min=914, max=310964, avg=35463.86, stdev=37241.25 lat (usec): min=916, max=310966, avg=35469.49, stdev=37238.35 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1270], 10.00th=[ 1762], 20.00th=[ 3884], | 30.00th=[ 7701], 40.00th=[ 16909], 50.00th=[ 25035], 60.00th=[ 34866], | 70.00th=[ 45351], 80.00th=[ 61604], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[152044], 99.50th=[183501], 99.90th=[304088], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 7, max= 136, per=25.44%, avg=50.37, stdev=21.32, samples=242 iops : min= 1, max= 34, avg=11.98, stdev= 5.37, samples=242 lat (usec) : 50=0.33%, 100=1.76%, 250=0.39%, 500=0.03%, 1000=0.16% lat (msec) : 2=5.83%, 4=4.59%, 10=6.97%, 20=9.44%, 50=39.81% lat (msec) : 100=25.42%, 250=5.11%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=5.33%, ctx=6524, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=190KiB/s (194kB/s), 47.7KiB/s-49.0KiB/s (48.8kB/s-50.2kB/s), io=23.4MiB (24.6MB), run=123398-126446msec WRITE: bw=199KiB/s (204kB/s), 49.5KiB/s-51.2KiB/s (50.7kB/s-52.4kB/s), io=24.6MiB (25.7MB), run=123398-126446msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179666: Fri Sep 4 14:30:36 2026 read: IOPS=9, BW=36.7KiB/s (37.6kB/s)(5992KiB/163125msec) clat (msec): min=6, max=939, avg=41.15, stdev=43.21 lat (msec): min=6, max=939, avg=41.15, stdev=43.21 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 87], 95.00th=[ 118], | 99.00th=[ 184], 99.50th=[ 205], 99.90th=[ 405], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 119, per=25.64%, avg=37.43, stdev=25.23, samples=311 iops : min= 1, max= 29, avg= 8.72, stdev= 6.34, samples=311 write: IOPS=9, BW=38.6KiB/s (39.5kB/s)(6296KiB/163125msec); 0 zone resets clat (msec): min=11, max=397, avg=64.19, stdev=45.69 lat (msec): min=11, max=397, avg=64.19, stdev=45.69 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 48], 60.00th=[ 62], | 70.00th=[ 75], 80.00th=[ 95], 90.00th=[ 128], 95.00th=[ 157], | 99.00th=[ 213], 99.50th=[ 266], 99.90th=[ 347], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 7, max= 111, per=25.36%, avg=38.55, stdev=23.85, samples=317 iops : min= 1, max= 27, avg= 8.99, stdev= 6.01, samples=317 lat (msec) : 10=1.63%, 20=15.30%, 50=46.84%, 100=23.44%, 250=12.40% lat (msec) : 500=0.36%, 1000=0.03% cpu : usr=0.06%, sys=1.99%, ctx=4854, 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=179668: Fri Sep 4 14:30:36 2026 read: IOPS=9, BW=36.3KiB/s (37.2kB/s)(5940KiB/163646msec) clat (msec): min=5, max=943, avg=42.75, stdev=45.30 lat (msec): min=5, max=943, avg=42.75, stdev=45.30 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 62], 90.00th=[ 94], 95.00th=[ 124], | 99.00th=[ 201], 99.50th=[ 218], 99.90th=[ 317], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 143, per=25.24%, avg=36.84, stdev=25.72, samples=314 iops : min= 1, max= 35, avg= 8.56, stdev= 6.45, samples=314 write: IOPS=9, BW=38.8KiB/s (39.7kB/s)(6348KiB/163646msec); 0 zone resets clat (msec): min=12, max=359, avg=62.82, stdev=44.33 lat (msec): min=12, max=359, avg=62.82, stdev=44.33 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 48], 60.00th=[ 60], | 70.00th=[ 75], 80.00th=[ 92], 90.00th=[ 120], 95.00th=[ 144], | 99.00th=[ 224], 99.50th=[ 296], 99.90th=[ 342], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 124, per=25.37%, avg=38.56, stdev=24.70, samples=321 iops : min= 1, max= 31, avg= 9.00, stdev= 6.22, samples=321 lat (msec) : 10=2.15%, 20=14.97%, 50=45.61%, 100=24.45%, 250=12.34% lat (msec) : 500=0.46%, 1000=0.03% cpu : usr=0.07%, sys=1.89%, ctx=4860, 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=179669: Fri Sep 4 14:30:36 2026 read: IOPS=9, BW=36.9KiB/s (37.8kB/s)(6028KiB/163250msec) clat (msec): min=5, max=400, avg=42.34, stdev=40.76 lat (msec): min=5, max=400, avg=42.34, stdev=40.76 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 59], 90.00th=[ 94], 95.00th=[ 123], | 99.00th=[ 209], 99.50th=[ 243], 99.90th=[ 300], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 7, max= 143, per=25.35%, avg=37.01, stdev=24.87, samples=316 iops : min= 1, max= 35, avg= 8.60, stdev= 6.27, samples=316 write: IOPS=9, BW=38.3KiB/s (39.3kB/s)(6260KiB/163250msec); 0 zone resets clat (msec): min=11, max=961, avg=63.24, stdev=49.85 lat (msec): min=11, max=961, avg=63.24, stdev=49.85 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 59], | 70.00th=[ 75], 80.00th=[ 93], 90.00th=[ 123], 95.00th=[ 153], | 99.00th=[ 213], 99.50th=[ 275], 99.90th=[ 388], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 127, per=25.02%, avg=38.04, stdev=24.21, samples=319 iops : min= 1, max= 31, avg= 8.86, stdev= 6.10, samples=319 lat (msec) : 10=1.60%, 20=16.50%, 50=46.06%, 100=23.11%, 250=12.17% lat (msec) : 500=0.52%, 1000=0.03% cpu : usr=0.06%, sys=1.88%, ctx=4811, 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=179670: Fri Sep 4 14:30:36 2026 read: IOPS=9, BW=36.8KiB/s (37.7kB/s)(6052KiB/164419msec) clat (msec): min=5, max=317, avg=42.18, stdev=40.50 lat (msec): min=5, max=317, avg=42.18, stdev=40.50 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 45], 80.00th=[ 59], 90.00th=[ 94], 95.00th=[ 126], | 99.00th=[ 201], 99.50th=[ 253], 99.90th=[ 279], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 7, max= 143, per=25.89%, avg=37.80, stdev=26.58, samples=312 iops : min= 1, max= 35, avg= 8.81, stdev= 6.68, samples=312 write: IOPS=9, BW=37.9KiB/s (38.8kB/s)(6236KiB/164419msec); 0 zone resets clat (msec): min=12, max=989, avg=64.25, stdev=50.45 lat (msec): min=12, max=989, avg=64.26, stdev=50.45 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 48], 60.00th=[ 59], | 70.00th=[ 78], 80.00th=[ 97], 90.00th=[ 127], 95.00th=[ 150], | 99.00th=[ 211], 99.50th=[ 262], 99.90th=[ 359], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 119, per=24.82%, avg=37.73, stdev=24.46, samples=322 iops : min= 1, max= 29, avg= 8.78, stdev= 6.16, samples=322 lat (msec) : 10=2.05%, 20=16.02%, 50=45.05%, 100=23.40%, 250=12.89% lat (msec) : 500=0.55%, 1000=0.03% cpu : usr=0.08%, sys=1.80%, ctx=4911, 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=146KiB/s (150kB/s), 36.3KiB/s-36.9KiB/s (37.2kB/s-37.8kB/s), io=23.4MiB (24.6MB), run=163125-164419msec WRITE: bw=153KiB/s (157kB/s), 37.9KiB/s-38.8KiB/s (38.8kB/s-39.7kB/s), io=24.6MiB (25.7MB), run=163125-164419msec 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=179715: Fri Sep 4 14:31:23 2026 read: IOPS=10, BW=165KiB/s (169kB/s)(5920KiB/35794msec) clat (usec): min=33, max=257182, avg=50844.63, stdev=37521.21 lat (usec): min=33, max=257184, avg=50846.31, stdev=37521.23 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 91], 10.00th=[ 16909], 20.00th=[ 26608], | 30.00th=[ 30802], 40.00th=[ 36439], 50.00th=[ 42730], 60.00th=[ 50070], | 70.00th=[ 59507], 80.00th=[ 70779], 90.00th=[ 93848], 95.00th=[123208], | 99.00th=[202376], 99.50th=[256902], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 31, max= 376, per=24.71%, avg=165.30, stdev=70.44, samples=69 iops : min= 1, max= 23, avg= 9.59, stdev= 4.51, samples=69 write: IOPS=11, BW=178KiB/s (182kB/s)(6368KiB/35794msec); 0 zone resets clat (usec): min=1564, max=264259, avg=42436.18, stdev=41746.33 lat (usec): min=1567, max=264262, avg=42439.18, stdev=41746.36 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2212], 10.00th=[ 4178], 20.00th=[ 7111], | 30.00th=[ 13304], 40.00th=[ 22676], 50.00th=[ 29492], 60.00th=[ 38011], | 70.00th=[ 52691], 80.00th=[ 74974], 90.00th=[ 98042], 95.00th=[128451], | 99.00th=[185598], 99.50th=[200279], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 31, max= 380, per=25.08%, avg=176.54, stdev=65.92, samples=70 iops : min= 1, max= 23, avg=10.31, stdev= 4.12, samples=70 lat (usec) : 50=0.39%, 100=2.34%, 250=0.78%, 750=0.13% lat (msec) : 2=1.95%, 4=2.99%, 10=8.98%, 20=8.07%, 50=38.28% lat (msec) : 100=27.60%, 250=8.07%, 500=0.39% cpu : usr=0.08%, sys=5.24%, ctx=1700, 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=179716: Fri Sep 4 14:31:23 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5744KiB/34695msec) clat (usec): min=54, max=308364, avg=51206.46, stdev=38059.93 lat (usec): min=56, max=308366, avg=51218.78, stdev=38055.62 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 81], 10.00th=[ 16188], 20.00th=[ 26870], | 30.00th=[ 31589], 40.00th=[ 38011], 50.00th=[ 45351], 60.00th=[ 51119], | 70.00th=[ 58983], 80.00th=[ 68682], 90.00th=[ 90702], 95.00th=[119014], | 99.00th=[204473], 99.50th=[270533], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 31, max= 380, per=24.58%, avg=164.41, stdev=72.25, samples=68 iops : min= 1, max= 23, avg= 9.54, stdev= 4.55, samples=68 write: IOPS=11, BW=189KiB/s (193kB/s)(6544KiB/34695msec); 0 zone resets clat (usec): min=1362, max=268053, avg=39806.66, stdev=40126.63 lat (usec): min=1362, max=268057, avg=39809.91, stdev=40127.24 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2024], 10.00th=[ 3818], 20.00th=[ 6456], | 30.00th=[ 11731], 40.00th=[ 20579], 50.00th=[ 27395], 60.00th=[ 34341], | 70.00th=[ 50594], 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[123208], | 99.00th=[179307], 99.50th=[191890], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 62, max= 507, per=26.58%, avg=187.09, stdev=86.90, samples=68 iops : min= 3, max= 31, avg=10.97, stdev= 5.53, samples=68 lat (usec) : 100=2.86%, 250=0.13%, 500=0.26% lat (msec) : 2=2.73%, 4=3.65%, 10=8.59%, 20=8.59%, 50=36.98% lat (msec) : 100=28.78%, 250=7.03%, 500=0.39% cpu : usr=0.08%, sys=5.24%, ctx=1667, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179717: Fri Sep 4 14:31:23 2026 read: IOPS=10, BW=175KiB/s (179kB/s)(6256KiB/35762msec) clat (usec): min=55, max=247196, avg=50774.28, stdev=33418.30 lat (usec): min=56, max=247197, avg=50775.92, stdev=33418.36 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 68], 10.00th=[ 15926], 20.00th=[ 26608], | 30.00th=[ 33162], 40.00th=[ 39060], 50.00th=[ 45876], 60.00th=[ 52691], | 70.00th=[ 59507], 80.00th=[ 72877], 90.00th=[ 91751], 95.00th=[107480], | 99.00th=[170918], 99.50th=[185598], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 31, max= 320, per=26.16%, avg=175.04, stdev=66.38, samples=70 iops : min= 1, max= 20, avg=10.21, stdev= 4.27, samples=70 write: IOPS=10, BW=169KiB/s (173kB/s)(6032KiB/35762msec); 0 zone resets clat (usec): min=1505, max=273267, avg=42050.88, stdev=39767.67 lat (usec): min=1508, max=273269, avg=42054.38, stdev=39767.50 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2442], 10.00th=[ 3392], 20.00th=[ 7242], | 30.00th=[ 13173], 40.00th=[ 22676], 50.00th=[ 30540], 60.00th=[ 41157], | 70.00th=[ 54264], 80.00th=[ 70779], 90.00th=[ 99091], 95.00th=[123208], | 99.00th=[160433], 99.50th=[183501], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 448, per=23.62%, avg=166.31, stdev=78.79, samples=70 iops : min= 1, max= 28, avg= 9.67, stdev= 5.01, samples=70 lat (usec) : 100=3.39%, 250=0.39%, 500=0.26% lat (msec) : 2=1.56%, 4=4.04%, 10=6.51%, 20=8.72%, 50=36.85% lat (msec) : 100=29.43%, 250=8.72%, 500=0.13% cpu : usr=0.08%, sys=5.26%, ctx=1751, 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=179718: Fri Sep 4 14:31:23 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(6032KiB/35036msec) clat (usec): min=36, max=225304, avg=49149.51, stdev=36609.97 lat (usec): min=36, max=225306, avg=49153.55, stdev=36607.94 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 67], 10.00th=[ 102], 20.00th=[ 24249], | 30.00th=[ 30802], 40.00th=[ 37487], 50.00th=[ 43779], 60.00th=[ 51119], | 70.00th=[ 60031], 80.00th=[ 71828], 90.00th=[ 91751], 95.00th=[109577], | 99.00th=[200279], 99.50th=[221250], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 31, max= 380, per=25.95%, avg=173.59, stdev=75.41, samples=68 iops : min= 1, max= 23, avg=10.12, stdev= 4.82, samples=68 write: IOPS=11, BW=179KiB/s (183kB/s)(6256KiB/35036msec); 0 zone resets clat (usec): min=1487, max=190884, avg=42145.98, stdev=41368.59 lat (usec): min=1489, max=190886, avg=42149.05, stdev=41368.15 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2540], 10.00th=[ 3621], 20.00th=[ 8029], | 30.00th=[ 12256], 40.00th=[ 20579], 50.00th=[ 31065], 60.00th=[ 36963], | 70.00th=[ 52691], 80.00th=[ 71828], 90.00th=[100140], 95.00th=[130548], | 99.00th=[177210], 99.50th=[185598], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 30, max= 379, per=25.39%, avg=178.77, stdev=80.28, samples=69 iops : min= 1, max= 23, avg=10.45, stdev= 5.06, samples=69 lat (usec) : 50=0.26%, 100=4.56%, 250=0.78% lat (msec) : 2=1.82%, 4=4.30%, 10=6.77%, 20=9.51%, 50=35.68% lat (msec) : 100=27.99%, 250=8.33% cpu : usr=0.08%, sys=5.35%, ctx=1679, 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=669KiB/s (685kB/s), 165KiB/s-175KiB/s (169kB/s-179kB/s), io=23.4MiB (24.5MB), run=34695-35794msec WRITE: bw=704KiB/s (721kB/s), 169KiB/s-189KiB/s (173kB/s-193kB/s), io=24.6MiB (25.8MB), run=34695-35794msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179710: Fri Sep 4 14:31:33 2026 read: IOPS=7, BW=126KiB/s (129kB/s)(5920KiB/47082msec) clat (msec): min=6, max=266, avg=46.97, stdev=39.17 lat (msec): min=6, max=266, avg=46.98, stdev=39.17 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 51], 80.00th=[ 70], 90.00th=[ 99], 95.00th=[ 124], | 99.00th=[ 213], 99.50th=[ 228], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 30, max= 383, per=25.30%, avg=127.78, stdev=83.54, samples=91 iops : min= 1, max= 23, avg= 7.18, stdev= 5.25, samples=91 write: IOPS=8, BW=135KiB/s (138kB/s)(6368KiB/47082msec); 0 zone resets clat (msec): min=18, max=359, avg=74.16, stdev=51.87 lat (msec): min=18, max=359, avg=74.16, stdev=51.87 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 37], | 30.00th=[ 43], 40.00th=[ 48], 50.00th=[ 58], 60.00th=[ 70], | 70.00th=[ 86], 80.00th=[ 106], 90.00th=[ 136], 95.00th=[ 176], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 31, max= 382, per=25.29%, avg=134.54, stdev=77.60, samples=93 iops : min= 1, max= 23, avg= 7.60, stdev= 4.85, samples=93 lat (msec) : 10=0.78%, 20=9.90%, 50=45.18%, 100=28.65%, 250=14.45% lat (msec) : 500=1.04% cpu : usr=0.04%, sys=1.66%, ctx=1155, 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=179711: Fri Sep 4 14:31:33 2026 read: IOPS=7, BW=121KiB/s (124kB/s)(5744KiB/47361msec) clat (msec): min=7, max=349, avg=47.65, stdev=43.95 lat (msec): min=7, max=349, avg=47.65, stdev=43.95 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 19], | 30.00th=[ 22], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 38], | 70.00th=[ 48], 80.00th=[ 69], 90.00th=[ 107], 95.00th=[ 142], | 99.00th=[ 230], 99.50th=[ 279], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 31, max= 415, per=25.01%, avg=126.30, stdev=82.90, samples=88 iops : min= 1, max= 25, avg= 7.08, stdev= 5.19, samples=88 write: IOPS=8, BW=138KiB/s (141kB/s)(6544KiB/47361msec); 0 zone resets clat (msec): min=18, max=354, avg=73.78, stdev=53.25 lat (msec): min=18, max=354, avg=73.78, stdev=53.26 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 57], 60.00th=[ 67], | 70.00th=[ 85], 80.00th=[ 107], 90.00th=[ 138], 95.00th=[ 174], | 99.00th=[ 288], 99.50th=[ 309], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 31, max= 382, per=25.54%, avg=135.89, stdev=82.69, samples=93 iops : min= 1, max= 23, avg= 7.69, stdev= 5.18, samples=93 lat (msec) : 10=0.52%, 20=10.68%, 50=46.09%, 100=24.87%, 250=16.41% lat (msec) : 500=1.43% cpu : usr=0.06%, sys=1.67%, ctx=1159, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179712: Fri Sep 4 14:31:33 2026 read: IOPS=8, BW=133KiB/s (136kB/s)(6256KiB/47011msec) clat (msec): min=7, max=411, avg=51.26, stdev=48.67 lat (msec): min=7, max=411, avg=51.27, stdev=48.67 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 42], | 70.00th=[ 56], 80.00th=[ 75], 90.00th=[ 110], 95.00th=[ 132], | 99.00th=[ 266], 99.50th=[ 372], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 31, max= 475, per=26.59%, avg=134.27, stdev=96.40, samples=92 iops : min= 1, max= 29, avg= 7.58, stdev= 6.06, samples=92 write: IOPS=8, BW=128KiB/s (131kB/s)(6032KiB/47011msec); 0 zone resets clat (msec): min=15, max=311, avg=71.00, stdev=46.28 lat (msec): min=15, max=311, avg=71.01, stdev=46.28 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 36], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 56], 60.00th=[ 66], | 70.00th=[ 80], 80.00th=[ 104], 90.00th=[ 133], 95.00th=[ 169], | 99.00th=[ 226], 99.50th=[ 251], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 351, per=24.81%, avg=132.01, stdev=73.79, samples=90 iops : min= 1, max= 21, avg= 7.44, stdev= 4.62, samples=90 lat (msec) : 10=0.52%, 20=10.81%, 50=44.53%, 100=27.21%, 250=16.15% lat (msec) : 500=0.78% cpu : usr=0.07%, sys=1.80%, ctx=1201, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179713: Fri Sep 4 14:31:33 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(6032KiB/46933msec) clat (msec): min=7, max=295, avg=48.35, stdev=44.96 lat (msec): min=7, max=295, avg=48.35, stdev=44.96 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 69], 90.00th=[ 105], 95.00th=[ 155], | 99.00th=[ 241], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 31, max= 414, per=25.64%, avg=129.49, stdev=81.99, samples=90 iops : min= 1, max= 25, avg= 7.27, stdev= 5.12, samples=90 write: IOPS=8, BW=133KiB/s (136kB/s)(6256KiB/46933msec); 0 zone resets clat (msec): min=18, max=337, avg=72.99, stdev=50.03 lat (msec): min=18, max=337, avg=72.99, stdev=50.03 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 34], | 30.00th=[ 41], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 69], | 70.00th=[ 84], 80.00th=[ 106], 90.00th=[ 138], 95.00th=[ 178], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 30, max= 411, per=25.25%, avg=134.34, stdev=79.81, samples=90 iops : min= 1, max= 25, avg= 7.58, stdev= 5.01, samples=90 lat (msec) : 10=0.52%, 20=9.51%, 50=48.44%, 100=24.61%, 250=15.89% lat (msec) : 500=1.04% cpu : usr=0.07%, sys=1.82%, ctx=1189, 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=506KiB/s (518kB/s), 121KiB/s-133KiB/s (124kB/s-136kB/s), io=23.4MiB (24.5MB), run=46933-47361msec WRITE: bw=532KiB/s (545kB/s), 128KiB/s-138KiB/s (131kB/s-141kB/s), io=24.6MiB (25.8MB), run=46933-47361msec 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=179732: Fri Sep 4 14:31:48 2026 read: IOPS=2, BW=2056KiB/s (2105kB/s)(7168KiB/3487msec) clat (msec): min=95, max=507, avg=221.33, stdev=138.22 lat (msec): min=95, max=507, avg=221.33, stdev=138.22 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 118], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 230], | 70.00th=[ 230], 80.00th=[ 257], 90.00th=[ 510], 95.00th=[ 510], | 99.00th=[ 510], 99.50th=[ 510], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 2023, max= 5796, per=72.88%, avg=2976.50, stdev=1879.70, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 write: IOPS=1, BW=1468KiB/s (1504kB/s)(5120KiB/3487msec); 0 zone resets clat (msec): min=189, max=555, avg=368.06, stdev=165.15 lat (msec): min=189, max=555, avg=368.42, stdev=165.12 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1882, max= 2048, per=34.29%, avg=1960.50, stdev=87.25, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=25.00% cpu : usr=0.06%, sys=6.37%, ctx=77, 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=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=179733: Fri Sep 4 14:31:48 2026 read: IOPS=0, BW=408KiB/s (418kB/s)(2048KiB/5014msec) clat (msec): min=127, max=720, avg=423.90, stdev=419.06 lat (msec): min=127, max=720, avg=423.91, stdev=419.05 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 128], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 128], 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= 1924, max= 2035, per=48.47%, avg=1979.50, stdev=78.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2042KiB/s (2091kB/s)(10.0MiB/5014msec); 0 zone resets clat (msec): min=121, max=1454, avg=403.25, stdev=388.55 lat (msec): min=121, max=1454, avg=403.37, stdev=388.56 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 161], | 30.00th=[ 165], 40.00th=[ 213], 50.00th=[ 266], 60.00th=[ 384], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 460], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 1882, max= 4047, per=46.49%, avg=2658.50, stdev=1065.08, samples=6 iops : min= 1, max= 3, avg= 1.83, stdev= 0.98, samples=6 lat (msec) : 250=41.67%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=6.08%, ctx=120, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179734: Fri Sep 4 14:31:48 2026 read: IOPS=1, BW=1602KiB/s (1640kB/s)(6144KiB/3836msec) clat (msec): min=147, max=1195, avg=439.93, stdev=399.08 lat (msec): min=147, max=1195, avg=439.93, stdev=399.08 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 184], 60.00th=[ 443], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1882, max= 2048, per=48.37%, avg=1975.40, stdev=82.58, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1602KiB/s (1640kB/s)(6144KiB/3836msec); 0 zone resets clat (msec): min=112, max=305, avg=182.73, stdev=72.73 lat (msec): min=112, max=306, avg=182.92, stdev=72.74 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 133], | 30.00th=[ 133], 40.00th=[ 155], 50.00th=[ 155], 60.00th=[ 159], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 305], 95.00th=[ 305], | 99.00th=[ 305], 99.50th=[ 305], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 1882, max= 6083, per=58.37%, avg=3337.67, stdev=2378.98, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 lat (msec) : 250=66.67%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=5.58%, ctx=96, 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=179735: Fri Sep 4 14:31:48 2026 read: IOPS=1, BW=1333KiB/s (1365kB/s)(5120KiB/3840msec) clat (msec): min=99, max=987, avg=351.01, stdev=377.13 lat (msec): min=99, max=987, avg=351.01, stdev=377.13 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 100], | 30.00th=[ 106], 40.00th=[ 106], 50.00th=[ 161], 60.00th=[ 161], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 4047, max= 4096, per=99.69%, avg=4071.50, stdev=34.65, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1867KiB/s (1911kB/s)(7168KiB/3840msec); 0 zone resets clat (msec): min=100, max=829, avg=291.68, stdev=266.38 lat (msec): min=100, max=829, avg=291.76, stdev=266.38 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 115], | 30.00th=[ 117], 40.00th=[ 117], 50.00th=[ 136], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 393], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 2039, max= 7627, per=78.29%, avg=4476.67, stdev=2861.36, samples=3 iops : min= 1, max= 7, avg= 3.67, stdev= 3.06, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 1000=16.67% cpu : usr=0.03%, sys=3.83%, ctx=73, 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=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=4085KiB/s (4183kB/s), 408KiB/s-2056KiB/s (418kB/s-2105kB/s), io=20.0MiB (20.0MB), run=3487-5014msec WRITE: bw=5718KiB/s (5856kB/s), 1468KiB/s-2042KiB/s (1504kB/s-2091kB/s), io=28.0MiB (29.4MB), run=3487-5014msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179737: Fri Sep 4 14:31:48 2026 read: IOPS=2, BW=2112KiB/s (2163kB/s)(7168KiB/3394msec) clat (usec): min=1914, max=783893, avg=263155.17, stdev=250520.09 lat (usec): min=1915, max=783895, avg=263156.47, stdev=250520.17 clat percentiles (usec): | 1.00th=[ 1909], 5.00th=[ 1909], 10.00th=[ 1909], 20.00th=[120062], | 30.00th=[168821], 40.00th=[168821], 50.00th=[191890], 60.00th=[263193], | 70.00th=[263193], 80.00th=[312476], 90.00th=[784335], 95.00th=[784335], | 99.00th=[784335], 99.50th=[784335], 99.90th=[784335], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 2035, max= 4156, per=75.45%, avg=3407.33, stdev=1190.12, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1509KiB/s (1545kB/s)(5120KiB/3394msec); 0 zone resets clat (msec): min=171, max=567, avg=309.08, stdev=162.70 lat (msec): min=172, max=567, avg=309.57, stdev=162.25 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 171], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 1735, max= 4087, per=41.31%, avg=2612.33, stdev=1284.75, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 2=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=17.09%, ctx=259, 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=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=179738: Fri Sep 4 14:31:48 2026 read: IOPS=0, BW=452KiB/s (463kB/s)(2048KiB/4534msec) clat (msec): min=289, max=296, avg=292.94, stdev= 4.37 lat (msec): min=289, max=296, avg=292.94, stdev= 4.37 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 1368, max= 2035, per=37.68%, avg=1701.50, stdev=471.64, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2258KiB/s (2313kB/s)(10.0MiB/4534msec); 0 zone resets clat (msec): min=114, max=820, avg=394.03, stdev=245.19 lat (msec): min=114, max=820, avg=394.57, stdev=244.80 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 192], | 30.00th=[ 199], 40.00th=[ 243], 50.00th=[ 342], 60.00th=[ 359], | 70.00th=[ 376], 80.00th=[ 493], 90.00th=[ 802], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 2015, max= 4071, per=47.78%, avg=3021.00, stdev=1085.83, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=33.33%, 500=50.00%, 1000=16.67% cpu : usr=0.00%, sys=15.77%, ctx=196, 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=179739: Fri Sep 4 14:31:48 2026 read: IOPS=1, BW=1706KiB/s (1747kB/s)(6144KiB/3602msec) clat (usec): min=522, max=322096, avg=150364.20, stdev=134318.62 lat (usec): min=523, max=322097, avg=150365.44, stdev=134318.52 clat percentiles (usec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 2180], | 30.00th=[ 2180], 40.00th=[109577], 50.00th=[109577], 60.00th=[217056], | 70.00th=[250610], 80.00th=[250610], 90.00th=[320865], 95.00th=[320865], | 99.00th=[320865], 99.50th=[320865], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 1735, max= 4087, per=54.33%, avg=2453.50, stdev=1096.39, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1706KiB/s (1747kB/s)(6144KiB/3602msec); 0 zone resets clat (msec): min=187, max=1101, avg=449.19, stdev=341.57 lat (msec): min=187, max=1101, avg=449.26, stdev=341.57 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 347], | 70.00th=[ 531], 80.00th=[ 531], 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= 1735, max= 3180, per=35.56%, avg=2248.25, stdev=637.49, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=15.63%, ctx=165, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179740: Fri Sep 4 14:31:48 2026 read: IOPS=1, BW=1475KiB/s (1510kB/s)(5120KiB/3471msec) clat (usec): min=738, max=269476, avg=106684.22, stdev=144303.82 lat (usec): min=739, max=269477, avg=106685.41, stdev=144304.13 clat percentiles (usec): | 1.00th=[ 742], 5.00th=[ 742], 10.00th=[ 742], 20.00th=[ 742], | 30.00th=[ 1614], 40.00th=[ 1614], 50.00th=[ 1647], 60.00th=[ 1647], | 70.00th=[258999], 80.00th=[258999], 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= 2043, max= 5873, per=87.64%, avg=3958.00, stdev=2708.22, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2065KiB/s (2115kB/s)(7168KiB/3471msec); 0 zone resets clat (msec): min=159, max=730, avg=419.09, stdev=248.17 lat (msec): min=159, max=730, avg=419.19, stdev=248.11 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 201], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 305], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 684], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1462, max= 4071, per=35.82%, avg=2265.20, stdev=1036.72, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 2=16.67%, 250=25.00%, 500=25.00%, 750=25.00% cpu : usr=0.00%, sys=17.20%, ctx=292, 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=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=4517KiB/s (4625kB/s), 452KiB/s-2112KiB/s (463kB/s-2163kB/s), io=20.0MiB (20.0MB), run=3394-4534msec WRITE: bw=6324KiB/s (6476kB/s), 1509KiB/s-2258KiB/s (1545kB/s-2313kB/s), io=28.0MiB (29.4MB), run=3394-4534msec 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=179750: Fri Sep 4 14:32:03 2026 read: IOPS=1, BW=5647KiB/s (5783kB/s)(12.0MiB/2176msec) clat (msec): min=636, max=758, avg=684.55, stdev=64.66 lat (msec): min=636, max=758, avg=684.55, stdev=64.66 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 8110, max= 8192, per=100.00%, avg=8151.00, stdev=57.98, 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=19.86%, ctx=501, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179752: Fri Sep 4 14:32:03 2026 read: IOPS=0, BW=1776KiB/s (1819kB/s)(4096KiB/2306msec) clat (nsec): min=678965k, max=678965k, avg=678964603.00, stdev= 0.00 lat (nsec): min=678967k, max=678967k, avg=678967030.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3552KiB/s (3638kB/s)(8192KiB/2306msec); 0 zone resets clat (msec): min=512, max=889, avg=700.85, stdev=266.55 lat (msec): min=512, max=889, avg=701.16, stdev=266.50 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 8110, max= 8110, per=67.87%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=7.55%, ctx=148, 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=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=179753: Fri Sep 4 14:32:03 2026 write: IOPS=1, BW=4481KiB/s (4589kB/s)(12.0MiB/2742msec); 0 zone resets clat (msec): min=249, max=1791, avg=874.01, stdev=811.42 lat (msec): min=253, max=1791, avg=875.34, stdev=810.21 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 251], | 30.00th=[ 251], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 8159, max= 8175, per=68.34%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.71%, ctx=42, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179754: Fri Sep 4 14:32:03 2026 write: IOPS=1, BW=5116KiB/s (5239kB/s)(12.0MiB/2402msec); 0 zone resets clat (msec): min=537, max=967, avg=766.09, stdev=216.56 lat (msec): min=538, max=968, avg=766.56, stdev=216.30 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 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= 8110, max= 8192, per=68.21%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=6.16%, ctx=54, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7105KiB/s (7275kB/s), 1776KiB/s-5647KiB/s (1819kB/s-5783kB/s), io=16.0MiB (16.8MB), run=2176-2306msec WRITE: bw=11.7MiB/s (12.2MB/s), 3552KiB/s-5116KiB/s (3638kB/s-5239kB/s), io=32.0MiB (33.6MB), run=2306-2742msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179747: Fri Sep 4 14:32:03 2026 read: IOPS=2, BW=9.97MiB/s (10.5MB/s)(12.0MiB/1203msec) clat (msec): min=242, max=421, avg=321.41, stdev=91.33 lat (msec): min=242, max=421, avg=321.41, stdev=91.33 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 243], | 30.00th=[ 243], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 6781, max= 8192, per=100.00%, avg=7486.50, stdev=997.73, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=66.67% cpu : usr=0.00%, sys=13.81%, ctx=77, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179748: Fri Sep 4 14:32:03 2026 read: IOPS=0, BW=1491KiB/s (1527kB/s)(4096KiB/2747msec) clat (nsec): min=1329.4M, max=1329.4M, avg=1329373035.00, stdev= 0.00 lat (nsec): min=1329.4M, max=1329.4M, avg=1329375112.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1334], 5.00th=[ 1334], 10.00th=[ 1334], 20.00th=[ 1334], | 30.00th=[ 1334], 40.00th=[ 1334], 50.00th=[ 1334], 60.00th=[ 1334], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8047, max= 8047, per=100.00%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2982KiB/s (3054kB/s)(8192KiB/2747msec); 0 zone resets clat (msec): min=490, max=816, avg=653.51, stdev=230.42 lat (msec): min=491, max=816, avg=654.21, stdev=229.93 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 818], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 8192, max= 8192, per=74.96%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.07%, sys=5.17%, ctx=49, 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=179749: Fri Sep 4 14:32:03 2026 write: IOPS=1, BW=4099KiB/s (4197kB/s)(12.0MiB/2998msec); 0 zone resets clat (msec): min=155, max=1722, avg=964.89, stdev=784.71 lat (msec): min=156, max=1722, avg=965.56, stdev=784.18 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8192, max= 8192, per=74.96%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.71%, ctx=87, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179751: Fri Sep 4 14:32:03 2026 write: IOPS=1, BW=5684KiB/s (5820kB/s)(12.0MiB/2162msec); 0 zone resets clat (msec): min=222, max=1489, avg=669.27, stdev=711.66 lat (msec): min=223, max=1490, avg=669.65, stdev=711.58 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 296], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7876, max= 8192, per=73.51%, avg=8034.00, stdev=223.45, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=8.84%, ctx=178, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5964KiB/s (6107kB/s), 1491KiB/s-9.97MiB/s (1527kB/s-10.5MB/s), io=16.0MiB (16.8MB), run=1203-2747msec WRITE: bw=10.7MiB/s (11.2MB/s), 2982KiB/s-5684KiB/s (3054kB/s-5820kB/s), io=32.0MiB (33.6MB), run=2162-2998msec