== sanity test 398b: DIO and buffer IO race ============== 15:35:09 (1783971309) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.68615 s, 8.9 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=180241: Mon Jul 13 15:37:21 2026 read: IOPS=13, BW=52.1KiB/s (53.3kB/s)(5992KiB/115064msec) clat (usec): min=31, max=716587, avg=43236.72, stdev=31250.41 lat (usec): min=31, max=716588, avg=43239.66, stdev=31249.72 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 13173], 10.00th=[ 17171], 20.00th=[ 22152], | 30.00th=[ 27395], 40.00th=[ 32900], 50.00th=[ 38011], 60.00th=[ 43779], | 70.00th=[ 50594], 80.00th=[ 60556], 90.00th=[ 74974], 95.00th=[ 89654], | 99.00th=[135267], 99.50th=[143655], 99.90th=[248513], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 111, per=24.78%, avg=51.54, stdev=18.66, samples=226 iops : min= 1, max= 27, avg=12.24, stdev= 4.68, samples=226 write: IOPS=13, BW=54.7KiB/s (56.0kB/s)(6296KiB/115064msec); 0 zone resets clat (usec): min=1038, max=235678, avg=31680.09, stdev=32201.92 lat (usec): min=1040, max=235679, avg=31682.96, stdev=32201.24 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1418], 10.00th=[ 2147], 20.00th=[ 3982], | 30.00th=[ 7308], 40.00th=[ 15401], 50.00th=[ 22676], 60.00th=[ 31065], | 70.00th=[ 40633], 80.00th=[ 54264], 90.00th=[ 76022], 95.00th=[ 94897], | 99.00th=[141558], 99.50th=[168821], 99.90th=[225444], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 7, max= 142, per=24.96%, avg=54.41, stdev=22.43, samples=225 iops : min= 1, max= 35, avg=12.98, stdev= 5.64, samples=225 lat (usec) : 50=0.23%, 100=1.04%, 250=0.20%, 500=0.07%, 750=0.03% lat (msec) : 2=4.72%, 4=5.76%, 10=7.39%, 20=11.75%, 50=42.19% lat (msec) : 100=22.88%, 250=3.71%, 750=0.03% cpu : usr=0.06%, sys=5.67%, ctx=6877, 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=180243: Mon Jul 13 15:37:21 2026 read: IOPS=13, BW=52.1KiB/s (53.3kB/s)(5940KiB/114072msec) clat (usec): min=41, max=799961, avg=42458.37, stdev=33411.15 lat (usec): min=41, max=799962, avg=42461.58, stdev=33411.44 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 12911], 10.00th=[ 17433], 20.00th=[ 21890], | 30.00th=[ 26346], 40.00th=[ 30802], 50.00th=[ 35914], 60.00th=[ 42206], | 70.00th=[ 50594], 80.00th=[ 59507], 90.00th=[ 74974], 95.00th=[ 88605], | 99.00th=[123208], 99.50th=[160433], 99.90th=[341836], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 119, per=25.04%, avg=52.08, stdev=19.12, samples=223 iops : min= 1, max= 29, avg=12.39, stdev= 4.81, samples=223 write: IOPS=13, BW=55.6KiB/s (56.0kB/s)(6348KiB/114072msec); 0 zone resets clat (usec): min=1101, max=223123, avg=31853.75, stdev=33175.52 lat (usec): min=1102, max=223124, avg=31866.08, stdev=33173.14 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1336], 10.00th=[ 1942], 20.00th=[ 3720], | 30.00th=[ 6718], 40.00th=[ 14222], 50.00th=[ 21890], 60.00th=[ 30540], | 70.00th=[ 40633], 80.00th=[ 54264], 90.00th=[ 78119], 95.00th=[ 96994], | 99.00th=[139461], 99.50th=[166724], 99.90th=[217056], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 7, max= 151, per=25.48%, avg=55.56, stdev=23.82, samples=223 iops : min= 1, max= 37, avg=13.26, stdev= 6.01, samples=223 lat (usec) : 50=0.23%, 100=1.11%, 250=0.23%, 500=0.07%, 750=0.03% lat (msec) : 2=5.34%, 4=5.89%, 10=7.23%, 20=11.62%, 50=41.50% lat (msec) : 100=23.14%, 250=3.52%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=5.59%, ctx=6700, 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=180246: Mon Jul 13 15:37:21 2026 read: IOPS=13, BW=52.5KiB/s (53.8kB/s)(6028KiB/114734msec) clat (usec): min=33, max=263988, avg=41613.63, stdev=26322.02 lat (usec): min=34, max=263989, avg=41618.42, stdev=26321.32 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 10945], 10.00th=[ 16450], 20.00th=[ 21890], | 30.00th=[ 26084], 40.00th=[ 30540], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 49546], 80.00th=[ 58983], 90.00th=[ 73925], 95.00th=[ 87557], | 99.00th=[128451], 99.50th=[147850], 99.90th=[202376], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 15, max= 111, per=25.26%, avg=52.54, stdev=19.09, samples=225 iops : min= 3, max= 27, avg=12.50, stdev= 4.80, samples=225 write: IOPS=13, BW=54.6KiB/s (55.9kB/s)(6260KiB/114734msec); 0 zone resets clat (usec): min=1159, max=778172, avg=32968.60, stdev=37532.49 lat (usec): min=1160, max=778173, avg=32970.65, stdev=37532.26 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1385], 10.00th=[ 2040], 20.00th=[ 4113], | 30.00th=[ 8291], 40.00th=[ 16581], 50.00th=[ 24511], 60.00th=[ 32637], | 70.00th=[ 43254], 80.00th=[ 55313], 90.00th=[ 73925], 95.00th=[ 94897], | 99.00th=[133694], 99.50th=[160433], 99.90th=[320865], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 7, max= 119, per=25.01%, avg=54.52, stdev=21.57, samples=225 iops : min= 1, max= 29, avg=13.00, stdev= 5.42, samples=225 lat (usec) : 50=0.42%, 100=1.30%, 250=0.13%, 500=0.07% lat (msec) : 2=4.92%, 4=5.11%, 10=6.97%, 20=11.30%, 50=42.87% lat (msec) : 100=23.34%, 250=3.48%, 500=0.07%, 1000=0.03% cpu : usr=0.07%, sys=5.65%, ctx=6898, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180248: Mon Jul 13 15:37:21 2026 read: IOPS=13, BW=52.8KiB/s (54.1kB/s)(6052KiB/114536msec) clat (usec): min=44, max=205034, avg=42168.34, stdev=26663.68 lat (usec): min=45, max=205035, avg=42169.55, stdev=26663.74 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11600], 10.00th=[ 17171], 20.00th=[ 21890], | 30.00th=[ 26608], 40.00th=[ 31327], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 50070], 80.00th=[ 59507], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[137364], 99.50th=[162530], 99.90th=[198181], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 15, max= 111, per=25.34%, avg=52.70, stdev=18.19, samples=224 iops : min= 3, max= 27, avg=12.54, stdev= 4.57, samples=224 write: IOPS=13, BW=54.4KiB/s (55.8kB/s)(6236KiB/114536msec); 0 zone resets clat (usec): min=1099, max=813916, avg=32271.55, stdev=36377.45 lat (usec): min=1100, max=813918, avg=32273.23, stdev=36378.05 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1418], 10.00th=[ 1975], 20.00th=[ 3654], | 30.00th=[ 7439], 40.00th=[ 16712], 50.00th=[ 25035], 60.00th=[ 32375], | 70.00th=[ 42206], 80.00th=[ 54789], 90.00th=[ 74974], 95.00th=[ 93848], | 99.00th=[127402], 99.50th=[145753], 99.90th=[202376], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 15, max= 112, per=24.89%, avg=54.25, stdev=20.09, samples=224 iops : min= 3, max= 28, avg=12.93, stdev= 5.08, samples=224 lat (usec) : 50=0.16%, 100=1.17%, 250=0.26%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.18%, 4=5.66%, 10=6.41%, 20=10.55%, 50=43.59% lat (msec) : 100=23.14%, 250=3.61%, 1000=0.03% cpu : usr=0.06%, sys=5.61%, ctx=6767, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=209KiB/s (214kB/s), 52.1KiB/s-52.8KiB/s (53.3kB/s-54.1kB/s), io=23.4MiB (24.6MB), run=114072-115064msec WRITE: bw=218KiB/s (224kB/s), 54.4KiB/s-55.6KiB/s (55.8kB/s-56.0kB/s), io=24.6MiB (25.7MB), run=114072-115064msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180242: Mon Jul 13 15:37:55 2026 read: IOPS=10, BW=40.6KiB/s (41.5kB/s)(5992KiB/147755msec) clat (msec): min=5, max=726, avg=38.28, stdev=39.56 lat (msec): min=5, max=726, avg=38.28, stdev=39.56 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 40], 80.00th=[ 56], 90.00th=[ 87], 95.00th=[ 115], | 99.00th=[ 176], 99.50th=[ 207], 99.90th=[ 271], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 167, per=25.39%, avg=40.88, stdev=28.64, samples=285 iops : min= 1, max= 41, avg= 9.58, stdev= 7.19, samples=285 write: IOPS=10, BW=42.6KiB/s (43.6kB/s)(6296KiB/147755msec); 0 zone resets clat (msec): min=8, max=371, avg=57.19, stdev=40.54 lat (msec): min=8, max=371, avg=57.19, stdev=40.54 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 43], 60.00th=[ 53], | 70.00th=[ 68], 80.00th=[ 84], 90.00th=[ 112], 95.00th=[ 140], | 99.00th=[ 205], 99.50th=[ 213], 99.90th=[ 253], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 7, max= 127, per=25.10%, avg=42.42, stdev=25.92, samples=289 iops : min= 1, max= 31, avg= 9.96, stdev= 6.53, samples=289 lat (msec) : 10=3.09%, 20=19.21%, 50=45.31%, 100=22.04%, 250=10.19% lat (msec) : 500=0.13%, 750=0.03% cpu : usr=0.06%, sys=2.34%, ctx=4953, 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=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=180244: Mon Jul 13 15:37:55 2026 read: IOPS=9, BW=39.0KiB/s (40.0kB/s)(5940KiB/148512msec) clat (msec): min=6, max=819, avg=40.28, stdev=41.83 lat (msec): min=6, max=819, avg=40.29, stdev=41.83 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 59], 90.00th=[ 88], 95.00th=[ 117], | 99.00th=[ 178], 99.50th=[ 234], 99.90th=[ 284], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 151, per=24.99%, avg=40.24, stdev=28.60, samples=287 iops : min= 1, max= 37, avg= 9.41, stdev= 7.19, samples=287 write: IOPS=10, BW=42.7KiB/s (43.8kB/s)(6348KiB/148512msec); 0 zone resets clat (msec): min=9, max=281, avg=55.64, stdev=38.49 lat (msec): min=9, max=281, avg=55.64, stdev=38.49 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 51], | 70.00th=[ 66], 80.00th=[ 84], 90.00th=[ 111], 95.00th=[ 133], | 99.00th=[ 184], 99.50th=[ 213], 99.90th=[ 234], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 127, per=25.07%, avg=42.37, stdev=26.72, samples=291 iops : min= 1, max= 31, avg= 9.95, stdev= 6.74, samples=291 lat (msec) : 10=2.60%, 20=18.49%, 50=46.29%, 100=22.10%, 250=10.32% lat (msec) : 500=0.16%, 1000=0.03% cpu : usr=0.06%, sys=2.39%, ctx=5068, 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=180245: Mon Jul 13 15:37:55 2026 read: IOPS=10, BW=40.8KiB/s (41.8kB/s)(6028KiB/147790msec) clat (msec): min=5, max=261, avg=38.18, stdev=34.82 lat (msec): min=5, max=261, avg=38.18, stdev=34.82 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 56], 90.00th=[ 86], 95.00th=[ 112], | 99.00th=[ 167], 99.50th=[ 182], 99.90th=[ 243], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 7, max= 141, per=25.55%, avg=41.14, stdev=27.20, samples=286 iops : min= 1, max= 35, avg= 9.64, stdev= 6.84, samples=286 write: IOPS=10, BW=42.4KiB/s (43.4kB/s)(6260KiB/147790msec); 0 zone resets clat (msec): min=8, max=783, avg=57.42, stdev=44.79 lat (msec): min=8, max=783, avg=57.43, stdev=44.79 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 43], 60.00th=[ 52], | 70.00th=[ 66], 80.00th=[ 85], 90.00th=[ 113], 95.00th=[ 138], | 99.00th=[ 203], 99.50th=[ 230], 99.90th=[ 372], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 134, per=24.91%, avg=42.10, stdev=26.99, samples=290 iops : min= 1, max= 33, avg= 9.88, stdev= 6.79, samples=290 lat (msec) : 10=2.51%, 20=19.47%, 50=46.03%, 100=21.52%, 250=10.22% lat (msec) : 500=0.23%, 1000=0.03% cpu : usr=0.06%, sys=2.34%, ctx=5041, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180247: Mon Jul 13 15:37:55 2026 read: IOPS=10, BW=41.2KiB/s (42.2kB/s)(6052KiB/146873msec) clat (msec): min=5, max=267, avg=37.01, stdev=32.57 lat (msec): min=5, max=267, avg=37.02, stdev=32.57 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 54], 90.00th=[ 81], 95.00th=[ 105], | 99.00th=[ 153], 99.50th=[ 186], 99.90th=[ 247], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 7, max= 135, per=25.90%, avg=41.71, stdev=28.20, samples=283 iops : min= 1, max= 33, avg= 9.78, stdev= 7.09, samples=283 write: IOPS=10, BW=42.5KiB/s (43.5kB/s)(6236KiB/146873msec); 0 zone resets clat (msec): min=12, max=797, avg=58.03, stdev=44.16 lat (msec): min=12, max=797, avg=58.04, stdev=44.16 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 26], | 30.00th=[ 31], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 55], | 70.00th=[ 69], 80.00th=[ 87], 90.00th=[ 112], 95.00th=[ 134], | 99.00th=[ 209], 99.50th=[ 228], 99.90th=[ 296], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 120, per=24.83%, avg=41.97, stdev=26.11, samples=289 iops : min= 1, max= 30, avg= 9.85, stdev= 6.59, samples=289 lat (msec) : 10=2.47%, 20=19.14%, 50=45.21%, 100=23.27%, 250=9.70% lat (msec) : 500=0.16%, 1000=0.03% cpu : usr=0.05%, sys=2.37%, ctx=4994, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=162KiB/s (166kB/s), 39.0KiB/s-41.2KiB/s (40.0kB/s-42.2kB/s), io=23.4MiB (24.6MB), run=146873-148512msec WRITE: bw=169KiB/s (173kB/s), 42.4KiB/s-42.7KiB/s (43.4kB/s-43.8kB/s), io=24.6MiB (25.7MB), run=146873-148512msec 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=180284: Mon Jul 13 15:38:38 2026 read: IOPS=11, BW=182KiB/s (187kB/s)(5920KiB/32485msec) clat (usec): min=39, max=198732, avg=45015.36, stdev=28335.00 lat (usec): min=40, max=198733, avg=45017.92, stdev=28332.78 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 66], 10.00th=[ 12125], 20.00th=[ 24773], | 30.00th=[ 30278], 40.00th=[ 36963], 50.00th=[ 41681], 60.00th=[ 47449], | 70.00th=[ 55313], 80.00th=[ 64226], 90.00th=[ 80217], 95.00th=[ 93848], | 99.00th=[135267], 99.50th=[185598], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 31, max= 349, per=24.77%, avg=182.56, stdev=68.29, samples=64 iops : min= 1, max= 21, avg=10.66, stdev= 4.32, samples=64 write: IOPS=12, BW=196KiB/s (201kB/s)(6368KiB/32485msec); 0 zone resets clat (usec): min=1439, max=229563, avg=38704.98, stdev=38776.88 lat (usec): min=1441, max=229565, avg=38707.21, stdev=38776.88 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2212], 10.00th=[ 3261], 20.00th=[ 6063], | 30.00th=[ 11076], 40.00th=[ 19268], 50.00th=[ 25822], 60.00th=[ 38011], | 70.00th=[ 45876], 80.00th=[ 68682], 90.00th=[ 92799], 95.00th=[120062], | 99.00th=[179307], 99.50th=[225444], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 22, max= 445, per=25.73%, avg=199.40, stdev=78.65, samples=63 iops : min= 1, max= 27, avg=11.73, stdev= 4.94, samples=63 lat (usec) : 50=0.39%, 100=3.52%, 250=0.52% lat (msec) : 2=1.56%, 4=5.60%, 10=7.55%, 20=8.85%, 50=39.06% lat (msec) : 100=27.86%, 250=5.08% cpu : usr=0.06%, sys=5.14%, ctx=1721, 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=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=180285: Mon Jul 13 15:38:38 2026 read: IOPS=11, BW=181KiB/s (186kB/s)(5744KiB/31676msec) clat (usec): min=39, max=181846, avg=46512.54, stdev=28871.98 lat (usec): min=40, max=181847, avg=46513.70, stdev=28871.94 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 70], 10.00th=[ 16712], 20.00th=[ 25297], | 30.00th=[ 31589], 40.00th=[ 37487], 50.00th=[ 43254], 60.00th=[ 50070], | 70.00th=[ 56886], 80.00th=[ 63177], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[154141], 99.50th=[181404], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 63, max= 350, per=24.52%, avg=180.69, stdev=60.98, samples=62 iops : min= 3, max= 21, avg=10.55, stdev= 3.79, samples=62 write: IOPS=12, BW=207KiB/s (212kB/s)(6544KiB/31676msec); 0 zone resets clat (usec): min=1568, max=200462, avg=36245.77, stdev=34121.41 lat (usec): min=1570, max=200464, avg=36248.02, stdev=34121.60 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2024], 10.00th=[ 2704], 20.00th=[ 6194], | 30.00th=[ 10290], 40.00th=[ 17695], 50.00th=[ 26608], 60.00th=[ 35914], | 70.00th=[ 48497], 80.00th=[ 63177], 90.00th=[ 84411], 95.00th=[100140], | 99.00th=[143655], 99.50th=[154141], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 63, max= 413, per=26.41%, avg=204.66, stdev=86.24, samples=62 iops : min= 3, max= 25, avg=12.06, stdev= 5.48, samples=62 lat (usec) : 50=0.39%, 100=2.60%, 250=0.39%, 750=0.13% lat (msec) : 2=2.47%, 4=5.47%, 10=7.81%, 20=10.29%, 50=36.07% lat (msec) : 100=29.43%, 250=4.95% cpu : usr=0.07%, sys=6.03%, ctx=1797, 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=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=180286: Mon Jul 13 15:38:38 2026 read: IOPS=12, BW=198KiB/s (203kB/s)(6256KiB/31580msec) clat (usec): min=41, max=204731, avg=44786.15, stdev=29994.47 lat (usec): min=41, max=204732, avg=44787.29, stdev=29994.50 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 76], 20.00th=[ 24249], | 30.00th=[ 30278], 40.00th=[ 36439], 50.00th=[ 41157], 60.00th=[ 46924], | 70.00th=[ 57410], 80.00th=[ 63177], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[149947], 99.50th=[202376], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 63, max= 477, per=26.91%, avg=198.31, stdev=78.06, samples=62 iops : min= 3, max= 29, avg=11.66, stdev= 4.92, samples=62 write: IOPS=11, BW=191KiB/s (196kB/s)(6032KiB/31580msec); 0 zone resets clat (usec): min=1548, max=181630, avg=36591.21, stdev=35434.38 lat (usec): min=1549, max=181632, avg=36601.89, stdev=35433.03 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2147], 10.00th=[ 3523], 20.00th=[ 6521], | 30.00th=[ 11076], 40.00th=[ 18220], 50.00th=[ 25297], 60.00th=[ 34341], | 70.00th=[ 47973], 80.00th=[ 62129], 90.00th=[ 87557], 95.00th=[103285], | 99.00th=[166724], 99.50th=[179307], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 31, max= 445, per=24.30%, avg=188.35, stdev=76.92, samples=62 iops : min= 1, max= 27, avg=11.03, stdev= 4.82, samples=62 lat (usec) : 50=0.65%, 100=5.08%, 250=0.39%, 1000=0.13% lat (msec) : 2=2.08%, 4=3.39%, 10=8.85%, 20=7.68%, 50=39.06% lat (msec) : 100=27.47%, 250=5.21% cpu : usr=0.09%, sys=5.36%, ctx=1683, 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=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=180289: Mon Jul 13 15:38:38 2026 read: IOPS=12, BW=193KiB/s (197kB/s)(6032KiB/31322msec) clat (usec): min=41, max=223507, avg=44541.11, stdev=31592.81 lat (usec): min=41, max=223508, avg=44543.48, stdev=31592.07 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 61], 10.00th=[ 77], 20.00th=[ 22414], | 30.00th=[ 28967], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 47449], | 70.00th=[ 54789], 80.00th=[ 64226], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[160433], 99.50th=[183501], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 31, max= 381, per=26.18%, avg=192.93, stdev=71.21, samples=61 iops : min= 1, max= 23, avg=11.33, stdev= 4.52, samples=61 write: IOPS=12, BW=200KiB/s (205kB/s)(6256KiB/31322msec); 0 zone resets clat (usec): min=1491, max=198308, avg=36336.53, stdev=34460.51 lat (usec): min=1492, max=198311, avg=36338.51, stdev=34460.60 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 1991], 10.00th=[ 2868], 20.00th=[ 5342], | 30.00th=[ 9896], 40.00th=[ 16712], 50.00th=[ 27919], 60.00th=[ 39060], | 70.00th=[ 46924], 80.00th=[ 62653], 90.00th=[ 81265], 95.00th=[102237], | 99.00th=[154141], 99.50th=[179307], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 31, max= 447, per=25.95%, avg=201.13, stdev=80.45, samples=61 iops : min= 1, max= 27, avg=11.84, stdev= 5.03, samples=61 lat (usec) : 50=0.26%, 100=5.60%, 250=0.52% lat (msec) : 2=2.60%, 4=4.56%, 10=8.33%, 20=8.85%, 50=37.11% lat (msec) : 100=26.95%, 250=5.21% cpu : usr=0.04%, sys=5.79%, ctx=1729, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=737KiB/s (755kB/s), 181KiB/s-198KiB/s (186kB/s-203kB/s), io=23.4MiB (24.5MB), run=31322-32485msec WRITE: bw=776KiB/s (794kB/s), 191KiB/s-207KiB/s (196kB/s-212kB/s), io=24.6MiB (25.8MB), run=31322-32485msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180287: Mon Jul 13 15:38:47 2026 read: IOPS=8, BW=141KiB/s (144kB/s)(5920KiB/42091msec) clat (msec): min=5, max=326, avg=45.35, stdev=41.83 lat (msec): min=5, max=326, avg=45.35, stdev=41.83 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 106], 95.00th=[ 133], | 99.00th=[ 205], 99.50th=[ 220], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 447, per=24.29%, avg=137.46, stdev=89.51, samples=82 iops : min= 1, max= 27, avg= 7.72, stdev= 5.62, samples=82 write: IOPS=9, BW=151KiB/s (155kB/s)(6368KiB/42091msec); 0 zone resets clat (msec): min=15, max=210, avg=62.72, stdev=39.53 lat (msec): min=15, max=210, avg=62.72, stdev=39.53 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 49], 60.00th=[ 62], | 70.00th=[ 73], 80.00th=[ 93], 90.00th=[ 116], 95.00th=[ 148], | 99.00th=[ 203], 99.50th=[ 209], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 21, max= 415, per=25.18%, avg=149.83, stdev=90.90, samples=82 iops : min= 1, max= 25, avg= 8.51, stdev= 5.72, samples=82 lat (msec) : 10=1.82%, 20=12.24%, 50=48.18%, 100=24.61%, 250=13.02% lat (msec) : 500=0.13% cpu : usr=0.06%, sys=2.30%, ctx=1298, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180288: Mon Jul 13 15:38:47 2026 read: IOPS=8, BW=136KiB/s (139kB/s)(5744KiB/42313msec) clat (msec): min=7, max=342, avg=44.46, stdev=40.42 lat (msec): min=7, max=342, avg=44.47, stdev=40.42 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 46], 80.00th=[ 62], 90.00th=[ 96], 95.00th=[ 132], | 99.00th=[ 180], 99.50th=[ 230], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 30, max= 383, per=24.75%, avg=140.10, stdev=89.80, samples=80 iops : min= 1, max= 23, avg= 7.89, stdev= 5.64, samples=80 write: IOPS=9, BW=155KiB/s (158kB/s)(6544KiB/42313msec); 0 zone resets clat (msec): min=16, max=286, avg=63.78, stdev=41.12 lat (msec): min=16, max=286, avg=63.78, stdev=41.12 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 38], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 59], | 70.00th=[ 74], 80.00th=[ 96], 90.00th=[ 122], 95.00th=[ 150], | 99.00th=[ 190], 99.50th=[ 209], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 442, per=26.03%, avg=154.90, stdev=89.40, samples=82 iops : min= 1, max= 27, avg= 8.83, stdev= 5.63, samples=82 lat (msec) : 10=1.04%, 20=13.80%, 50=46.22%, 100=24.87%, 250=13.80% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=2.16%, ctx=1255, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180290: Mon Jul 13 15:38:47 2026 read: IOPS=9, BW=149KiB/s (153kB/s)(6256KiB/42004msec) clat (msec): min=7, max=202, avg=44.75, stdev=38.46 lat (msec): min=7, max=202, avg=44.76, stdev=38.45 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 38], | 70.00th=[ 48], 80.00th=[ 68], 90.00th=[ 102], 95.00th=[ 130], | 99.00th=[ 190], 99.50th=[ 199], 99.90th=[ 203], 99.95th=[ 203], | 99.99th=[ 203] bw ( KiB/s): min= 31, max= 509, per=27.05%, avg=153.12, stdev=103.42, samples=80 iops : min= 1, max= 31, avg= 8.71, stdev= 6.49, samples=80 write: IOPS=8, BW=144KiB/s (147kB/s)(6032KiB/42004msec); 0 zone resets clat (msec): min=14, max=260, avg=64.23, stdev=42.95 lat (msec): min=14, max=260, avg=64.24, stdev=42.95 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 30], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 51], 60.00th=[ 63], | 70.00th=[ 72], 80.00th=[ 95], 90.00th=[ 132], 95.00th=[ 157], | 99.00th=[ 192], 99.50th=[ 247], 99.90th=[ 262], 99.95th=[ 262], | 99.99th=[ 262] bw ( KiB/s): min= 31, max= 383, per=24.06%, avg=143.15, stdev=80.76, samples=81 iops : min= 1, max= 23, avg= 8.09, stdev= 5.09, samples=81 lat (msec) : 10=1.43%, 20=13.41%, 50=45.96%, 100=25.13%, 250=13.93% lat (msec) : 500=0.13% cpu : usr=0.04%, sys=2.04%, ctx=1193, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180291: Mon Jul 13 15:38:47 2026 read: IOPS=8, BW=143KiB/s (146kB/s)(6032KiB/42311msec) clat (msec): min=7, max=189, avg=46.70, stdev=40.05 lat (msec): min=7, max=189, avg=46.70, stdev=40.05 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 71], 90.00th=[ 114], 95.00th=[ 140], | 99.00th=[ 186], 99.50th=[ 190], 99.90th=[ 190], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 31, max= 414, per=25.42%, avg=143.90, stdev=91.46, samples=81 iops : min= 1, max= 25, avg= 8.14, stdev= 5.75, samples=81 write: IOPS=9, BW=148KiB/s (151kB/s)(6256KiB/42311msec); 0 zone resets clat (msec): min=13, max=279, avg=63.07, stdev=44.31 lat (msec): min=13, max=279, avg=63.07, stdev=44.31 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 60], | 70.00th=[ 74], 80.00th=[ 95], 90.00th=[ 126], 95.00th=[ 150], | 99.00th=[ 249], 99.50th=[ 264], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 542, per=24.90%, avg=148.17, stdev=98.37, samples=82 iops : min= 1, max= 33, avg= 8.40, stdev= 6.18, samples=82 lat (msec) : 10=1.82%, 20=13.41%, 50=46.22%, 100=24.61%, 250=13.54% lat (msec) : 500=0.39% cpu : usr=0.06%, sys=2.13%, ctx=1293, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=566KiB/s (580kB/s), 136KiB/s-149KiB/s (139kB/s-153kB/s), io=23.4MiB (24.5MB), run=42004-42313msec WRITE: bw=596KiB/s (610kB/s), 144KiB/s-155KiB/s (147kB/s-158kB/s), io=24.6MiB (25.8MB), run=42004-42313msec 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=180302: Mon Jul 13 15:39:01 2026 read: IOPS=2, BW=2054KiB/s (2104kB/s)(7168KiB/3489msec) clat (usec): min=517, max=1079.0k, avg=304985.97, stdev=357163.91 lat (usec): min=518, max=1079.0k, avg=304988.84, stdev=357163.30 clat percentiles (usec): | 1.00th=[ 519], 5.00th=[ 519], 10.00th=[ 519], | 20.00th=[ 117965], 30.00th=[ 166724], 40.00th=[ 166724], | 50.00th=[ 191890], 60.00th=[ 233833], 70.00th=[ 233833], | 80.00th=[ 346031], 90.00th=[1082131], 95.00th=[1082131], | 99.00th=[1082131], 99.50th=[1082131], 99.90th=[1082131], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 1939, max= 4071, per=69.85%, avg=2733.25, stdev=992.08, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1467KiB/s (1503kB/s)(5120KiB/3489msec); 0 zone resets clat (msec): min=154, max=522, avg=259.18, stdev=155.61 lat (msec): min=154, max=522, avg=259.37, stdev=155.54 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 180], 60.00th=[ 180], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 2023, max= 6119, per=74.30%, avg=4071.00, stdev=2896.31, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (usec) : 750=8.33% lat (msec) : 250=58.33%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.09%, sys=14.88%, ctx=326, 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=180303: Mon Jul 13 15:39:01 2026 read: IOPS=0, BW=412KiB/s (422kB/s)(2048KiB/4970msec) clat (usec): min=605, max=122176, avg=61391.14, stdev=85963.20 lat (usec): min=607, max=122177, avg=61392.60, stdev=85963.49 clat percentiles (usec): | 1.00th=[ 603], 5.00th=[ 603], 10.00th=[ 603], 20.00th=[ 603], | 30.00th=[ 603], 40.00th=[ 603], 50.00th=[ 603], 60.00th=[122160], | 70.00th=[122160], 80.00th=[122160], 90.00th=[122160], 95.00th=[122160], | 99.00th=[122160], 99.50th=[122160], 99.90th=[122160], 99.95th=[122160], | 99.99th=[122160] bw ( KiB/s): min= 1420, max= 1939, per=42.92%, avg=1679.50, stdev=366.99, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2060KiB/s (2110kB/s)(10.0MiB/4970msec); 0 zone resets clat (msec): min=69, max=1995, avg=480.82, stdev=593.35 lat (msec): min=69, max=1995, avg=481.06, stdev=593.29 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 111], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 148], 60.00th=[ 271], | 70.00th=[ 468], 80.00th=[ 550], 90.00th=[ 902], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 1420, max= 6119, per=62.37%, avg=3417.20, stdev=2234.67, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 2.19, samples=5 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=11.39%, ctx=113, 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=180304: Mon Jul 13 15:39:01 2026 read: IOPS=1, BW=1174KiB/s (1202kB/s)(6144KiB/5233msec) clat (usec): min=406, max=757670, avg=227623.88, stdev=278678.87 lat (usec): min=407, max=757670, avg=227624.84, stdev=278678.59 clat percentiles (usec): | 1.00th=[ 408], 5.00th=[ 408], 10.00th=[ 408], 20.00th=[ 725], | 30.00th=[ 725], 40.00th=[168821], 50.00th=[168821], 60.00th=[200279], | 70.00th=[238027], 80.00th=[238027], 90.00th=[759170], 95.00th=[759170], | 99.00th=[759170], 99.50th=[759170], 99.90th=[759170], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 1855, max= 4023, per=62.97%, avg=2464.00, stdev=1042.05, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1174KiB/s (1202kB/s)(6144KiB/5233msec); 0 zone resets clat (msec): min=103, max=1745, avg=636.34, stdev=582.35 lat (msec): min=104, max=1746, avg=636.88, stdev=582.05 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 493], | 70.00th=[ 743], 80.00th=[ 743], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 2011, max= 2985, per=41.42%, avg=2269.50, stdev=477.21, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=33.33%, 500=25.00%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.02%, sys=9.00%, 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=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=180305: Mon Jul 13 15:39:01 2026 read: IOPS=1, BW=1325KiB/s (1357kB/s)(5120KiB/3864msec) clat (usec): min=1661, max=276603, avg=186878.41, stdev=109065.84 lat (usec): min=1662, max=276604, avg=186879.61, stdev=109065.77 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1663], 10.00th=[ 1663], 20.00th=[ 1663], | 30.00th=[181404], 40.00th=[181404], 50.00th=[235930], 60.00th=[235930], | 70.00th=[238027], 80.00th=[238027], 90.00th=[274727], 95.00th=[274727], | 99.00th=[274727], 99.50th=[274727], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 3878, max= 4079, per=100.00%, avg=3978.50, stdev=142.13, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1855KiB/s (1900kB/s)(7168KiB/3864msec); 0 zone resets clat (msec): min=165, max=1357, avg=410.42, stdev=425.17 lat (msec): min=165, max=1357, avg=410.49, stdev=425.16 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 203], | 30.00th=[ 218], 40.00th=[ 218], 50.00th=[ 255], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 414], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 1462, max= 4071, per=49.34%, avg=2703.60, stdev=1244.99, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 2=8.33%, 250=50.00%, 500=33.33%, 2000=8.33% cpu : usr=0.03%, sys=14.88%, ctx=134, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3914KiB/s (4008kB/s), 412KiB/s-2054KiB/s (422kB/s-2104kB/s), io=20.0MiB (20.0MB), run=3489-5233msec WRITE: bw=5479KiB/s (5611kB/s), 1174KiB/s-2060KiB/s (1202kB/s-2110kB/s), io=28.0MiB (29.4MB), run=3489-5233msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180307: Mon Jul 13 15:39:02 2026 read: IOPS=1, BW=1351KiB/s (1383kB/s)(7168KiB/5306msec) clat (msec): min=84, max=1574, avg=487.18, stdev=559.42 lat (msec): min=84, max=1574, avg=487.18, stdev=559.42 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 105], | 30.00th=[ 108], 40.00th=[ 108], 50.00th=[ 114], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 735], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 1643, max= 4087, per=61.34%, avg=2308.80, stdev=1005.98, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=965KiB/s (988kB/s)(5120KiB/5306msec); 0 zone resets clat (msec): min=65, max=732, avg=375.12, stdev=258.89 lat (msec): min=65, max=732, avg=375.23, stdev=258.94 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 66], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 502], 80.00th=[ 502], 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= 2048, max= 4079, per=64.15%, avg=3380.67, stdev=1154.57, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=5.30%, ctx=99, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=180308: Mon Jul 13 15:39:02 2026 read: IOPS=0, BW=376KiB/s (386kB/s)(2048KiB/5440msec) clat (msec): min=140, max=272, avg=206.64, stdev=93.03 lat (msec): min=140, max=272, avg=206.64, stdev=93.03 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 1556, max= 2007, per=47.33%, avg=1781.50, stdev=318.91, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1882KiB/s (1928kB/s)(10.0MiB/5440msec); 0 zone resets clat (msec): min=83, max=986, avg=498.34, stdev=363.77 lat (msec): min=83, max=986, avg=498.82, stdev=364.09 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 88], | 30.00th=[ 161], 40.00th=[ 176], 50.00th=[ 372], 60.00th=[ 592], | 70.00th=[ 776], 80.00th=[ 852], 90.00th=[ 911], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1796, max= 4015, per=50.33%, avg=2652.50, stdev=1059.31, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 100=16.67%, 250=25.00%, 500=16.67%, 750=8.33%, 1000=33.33% cpu : usr=0.00%, sys=3.77%, ctx=77, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180309: Mon Jul 13 15:39:02 2026 read: IOPS=1, BW=1159KiB/s (1187kB/s)(6144KiB/5299msec) clat (msec): min=88, max=525, avg=179.87, stdev=169.85 lat (msec): min=88, max=525, avg=179.87, stdev=169.85 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 108], | 30.00th=[ 108], 40.00th=[ 113], 50.00th=[ 113], 60.00th=[ 120], | 70.00th=[ 126], 80.00th=[ 126], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 2007, max= 4079, per=67.32%, avg=2534.00, stdev=1030.14, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1159KiB/s (1187kB/s)(6144KiB/5299msec); 0 zone resets clat (msec): min=137, max=2776, avg=700.89, stdev=1023.07 lat (msec): min=137, max=2776, avg=700.97, stdev=1023.08 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 334], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 2769], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 2007, max= 4015, per=53.81%, avg=2835.75, stdev=985.12, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.93%, ctx=90, 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=180310: Mon Jul 13 15:39:02 2026 read: IOPS=0, BW=947KiB/s (969kB/s)(5120KiB/5409msec) clat (msec): min=79, max=578, avg=250.01, stdev=217.48 lat (msec): min=79, max=578, avg=250.02, stdev=217.47 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 80], | 30.00th=[ 89], 40.00th=[ 89], 50.00th=[ 138], 60.00th=[ 138], | 70.00th=[ 368], 80.00th=[ 368], 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= 2007, max= 4079, per=71.99%, avg=2709.67, stdev=1186.01, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1325KiB/s (1357kB/s)(7168KiB/5409msec); 0 zone resets clat (msec): min=86, max=2638, avg=581.01, stdev=922.60 lat (msec): min=86, max=2639, avg=581.18, stdev=922.81 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 96], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 264], 60.00th=[ 279], | 70.00th=[ 279], 80.00th=[ 567], 90.00th=[ 2635], 95.00th=[ 2635], | 99.00th=[ 2635], 99.50th=[ 2635], 99.90th=[ 2635], 99.95th=[ 2635], | 99.99th=[ 2635] bw ( KiB/s): min= 1726, max= 2048, per=37.31%, avg=1966.20, stdev=135.66, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=33.33%, 250=16.67%, 500=25.00%, 750=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=4.47%, ctx=103, 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=3765KiB/s (3855kB/s), 376KiB/s-1351KiB/s (386kB/s-1383kB/s), io=20.0MiB (20.0MB), run=5299-5440msec WRITE: bw=5271KiB/s (5397kB/s), 965KiB/s-1882KiB/s (988kB/s-1928kB/s), io=28.0MiB (29.4MB), run=5299-5440msec 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=180316: Mon Jul 13 15:39:19 2026 read: IOPS=1, BW=4419KiB/s (4525kB/s)(12.0MiB/2781msec) clat (msec): min=849, max=994, avg=900.88, stdev=81.57 lat (msec): min=849, max=994, avg=900.88, stdev=81.57 clat percentiles (msec): | 1.00th=[ 852], 5.00th=[ 852], 10.00th=[ 852], 20.00th=[ 852], | 30.00th=[ 852], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 860], | 70.00th=[ 995], 80.00th=[ 995], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 8126, max= 8143, per=100.00%, avg=8134.50, stdev=12.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=12.01%, ctx=212, 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=180317: Mon Jul 13 15:39:19 2026 read: IOPS=0, BW=904KiB/s (926kB/s)(4096KiB/4531msec) clat (nsec): min=843765k, max=843765k, avg=843765024.00, stdev= 0.00 lat (nsec): min=843766k, max=843766k, avg=843766494.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1808KiB/s (1851kB/s)(8192KiB/4531msec); 0 zone resets clat (msec): min=1474, max=2162, avg=1818.67, stdev=486.46 lat (msec): min=1475, max=2163, avg=1819.02, stdev=486.49 clat percentiles (msec): | 1.00th=[ 1469], 5.00th=[ 1469], 10.00th=[ 1469], 20.00th=[ 1469], | 30.00th=[ 1469], 40.00th=[ 1469], 50.00th=[ 1469], 60.00th=[ 2165], | 70.00th=[ 2165], 80.00th=[ 2165], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.20%, ctx=81, 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=180318: Mon Jul 13 15:39:19 2026 write: IOPS=0, BW=2676KiB/s (2740kB/s)(12.0MiB/4592msec); 0 zone resets clat (msec): min=371, max=2748, avg=1491.42, stdev=1194.67 lat (msec): min=372, max=2749, avg=1493.94, stdev=1194.52 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 1351], 50.00th=[ 1351], 60.00th=[ 1351], | 70.00th=[ 2735], 80.00th=[ 2735], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 7937, max= 7937, per=100.00%, avg=7937.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=2.61%, ctx=59, 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=180319: Mon Jul 13 15:39:19 2026 write: IOPS=0, BW=3925KiB/s (4019kB/s)(12.0MiB/3131msec); 0 zone resets clat (msec): min=286, max=1598, avg=1022.42, stdev=670.32 lat (msec): min=286, max=1602, avg=1023.92, stdev=671.86 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 7937, max= 8159, per=100.00%, avg=8048.00, stdev=156.98, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.69%, ctx=55, 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=3616KiB/s (3703kB/s), 904KiB/s-4419KiB/s (926kB/s-4525kB/s), io=16.0MiB (16.8MB), run=2781-4531msec WRITE: bw=7136KiB/s (7307kB/s), 1808KiB/s-3925KiB/s (1851kB/s-4019kB/s), io=32.0MiB (33.6MB), run=3131-4592msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180321: Mon Jul 13 15:39:19 2026 read: IOPS=0, BW=3303KiB/s (3383kB/s)(12.0MiB/3720msec) clat (msec): min=841, max=1489, avg=1220.67, stdev=337.97 lat (msec): min=841, max=1489, avg=1220.67, stdev=337.97 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 1334], 50.00th=[ 1334], 60.00th=[ 1334], | 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= 7953, max= 8159, per=100.00%, avg=8056.00, stdev=145.66, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.58%, ctx=40, 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=180322: Mon Jul 13 15:39:19 2026 read: IOPS=0, BW=989KiB/s (1013kB/s)(4096KiB/4141msec) clat (nsec): min=1931.0M, max=1931.0M, avg=1931971812.00, stdev= 0.00 lat (nsec): min=1931.0M, max=1931.0M, avg=1931973496.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1938], 5.00th=[ 1938], 10.00th=[ 1938], 20.00th=[ 1938], | 30.00th=[ 1938], 40.00th=[ 1938], 50.00th=[ 1938], 60.00th=[ 1938], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min= 7892, max= 7892, per=100.00%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1978KiB/s (2026kB/s)(8192KiB/4141msec); 0 zone resets clat (msec): min=903, max=1302, avg=1102.68, stdev=281.98 lat (msec): min=903, max=1302, avg=1102.97, stdev=281.97 clat percentiles (msec): | 1.00th=[ 902], 5.00th=[ 902], 10.00th=[ 902], 20.00th=[ 902], | 30.00th=[ 902], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 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 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.03%, ctx=31, 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=180323: Mon Jul 13 15:39:19 2026 write: IOPS=0, BW=3675KiB/s (3763kB/s)(12.0MiB/3344msec); 0 zone resets clat (msec): min=749, max=1300, avg=1086.96, stdev=296.10 lat (msec): min=749, max=1301, avg=1087.47, stdev=296.00 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7801, max= 8047, per=100.00%, avg=7924.00, stdev=173.95, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.84%, ctx=45, 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=180324: Mon Jul 13 15:39:19 2026 write: IOPS=0, BW=3291KiB/s (3370kB/s)(12.0MiB/3734msec); 0 zone resets clat (msec): min=449, max=1642, avg=1219.14, stdev=667.99 lat (msec): min=449, max=1652, avg=1222.77, stdev=671.17 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 1569], 50.00th=[ 1569], 60.00th=[ 1569], | 70.00th=[ 1636], 80.00th=[ 1636], 90.00th=[ 1636], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 8000, max= 8047, per=100.00%, avg=8023.50, stdev=33.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.14%, ctx=45, 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=3957KiB/s (4051kB/s), 989KiB/s-3303KiB/s (1013kB/s-3383kB/s), io=16.0MiB (16.8MB), run=3720-4141msec WRITE: bw=7913KiB/s (8103kB/s), 1978KiB/s-3675KiB/s (2026kB/s-3763kB/s), io=32.0MiB (33.6MB), run=3344-4141msec