== sanity test 398b: DIO and buffer IO race ============== 17:42:02 (1787866922) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.93479 s, 8.5 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=179380: Thu Aug 27 17:44:18 2026 read: IOPS=12, BW=50.8KiB/s (52.1kB/s)(5992KiB/117844msec) clat (usec): min=37, max=947718, avg=43924.47, stdev=38241.52 lat (usec): min=37, max=947720, avg=43925.91, stdev=38241.60 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 9765], 10.00th=[ 14877], 20.00th=[ 20579], | 30.00th=[ 26084], 40.00th=[ 31589], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 51119], 80.00th=[ 62129], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[154141], 99.50th=[202376], 99.90th=[287310], 99.95th=[943719], | 99.99th=[943719] bw ( KiB/s): min= 7, max= 125, per=25.14%, avg=51.04, stdev=20.39, samples=228 iops : min= 1, max= 31, avg=12.10, stdev= 5.14, samples=228 write: IOPS=13, BW=53.4KiB/s (54.7kB/s)(6296KiB/117844msec); 0 zone resets clat (usec): min=794, max=294227, avg=32775.97, stdev=35595.51 lat (usec): min=796, max=294229, avg=32783.25, stdev=35594.86 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1156], 10.00th=[ 1336], 20.00th=[ 2999], | 30.00th=[ 6849], 40.00th=[ 15008], 50.00th=[ 22938], 60.00th=[ 30278], | 70.00th=[ 40633], 80.00th=[ 56886], 90.00th=[ 80217], 95.00th=[104334], | 99.00th=[160433], 99.50th=[177210], 99.90th=[263193], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 7, max= 173, per=24.95%, avg=53.14, stdev=26.10, samples=230 iops : min= 1, max= 43, avg=12.63, stdev= 6.58, samples=230 lat (usec) : 50=0.39%, 100=1.24%, 250=0.13%, 500=0.03%, 1000=0.29% lat (msec) : 2=7.42%, 4=3.94%, 10=6.93%, 20=12.63%, 50=39.75% lat (msec) : 100=22.20%, 250=4.92%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=4.55%, ctx=6302, 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=179381: Thu Aug 27 17:44:18 2026 read: IOPS=12, BW=50.6KiB/s (51.8kB/s)(5940KiB/117388msec) clat (usec): min=39, max=966779, avg=43379.69, stdev=36604.03 lat (usec): min=41, max=966782, avg=43381.51, stdev=36604.08 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 11863], 10.00th=[ 15795], 20.00th=[ 21365], | 30.00th=[ 26608], 40.00th=[ 31589], 50.00th=[ 36963], 60.00th=[ 42730], | 70.00th=[ 50594], 80.00th=[ 58983], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[143655], 99.50th=[164627], 99.90th=[196084], 99.95th=[968885], | 99.99th=[968885] bw ( KiB/s): min= 7, max= 119, per=24.77%, avg=50.28, stdev=18.69, samples=229 iops : min= 1, max= 29, avg=11.91, stdev= 4.72, samples=229 write: IOPS=13, BW=54.1KiB/s (55.4kB/s)(6348KiB/117388msec); 0 zone resets clat (usec): min=857, max=252916, avg=33144.35, stdev=34938.29 lat (usec): min=858, max=252917, avg=33148.21, stdev=34937.26 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1156], 10.00th=[ 1303], 20.00th=[ 2999], | 30.00th=[ 6783], 40.00th=[ 15401], 50.00th=[ 23200], 60.00th=[ 32900], | 70.00th=[ 42206], 80.00th=[ 56886], 90.00th=[ 80217], 95.00th=[101188], | 99.00th=[152044], 99.50th=[179307], 99.90th=[210764], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 7, max= 136, per=25.14%, avg=53.55, stdev=23.24, samples=229 iops : min= 1, max= 34, avg=12.73, stdev= 5.86, samples=229 lat (usec) : 50=0.29%, 100=0.98%, 1000=0.16% lat (msec) : 2=8.50%, 4=3.52%, 10=6.25%, 20=12.17%, 50=40.82% lat (msec) : 100=22.49%, 250=4.75%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=4.77%, ctx=6496, 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=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=179382: Thu Aug 27 17:44:18 2026 read: IOPS=12, BW=51.4KiB/s (52.7kB/s)(6028KiB/117195msec) clat (usec): min=38, max=270180, avg=42730.79, stdev=28620.49 lat (usec): min=38, max=270182, avg=42738.05, stdev=28619.63 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 9372], 10.00th=[ 15533], 20.00th=[ 21103], | 30.00th=[ 26346], 40.00th=[ 31589], 50.00th=[ 36439], 60.00th=[ 43254], | 70.00th=[ 51643], 80.00th=[ 61604], 90.00th=[ 77071], 95.00th=[ 92799], | 99.00th=[141558], 99.50th=[166724], 99.90th=[256902], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 111, per=25.18%, avg=51.11, stdev=19.82, samples=230 iops : min= 1, max= 27, avg=12.11, stdev= 4.98, samples=230 write: IOPS=13, BW=53.4KiB/s (54.7kB/s)(6260KiB/117195msec); 0 zone resets clat (usec): min=825, max=960792, avg=33532.01, stdev=42818.62 lat (usec): min=826, max=960794, avg=33541.10, stdev=42819.34 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1139], 10.00th=[ 1287], 20.00th=[ 2606], | 30.00th=[ 5932], 40.00th=[ 14353], 50.00th=[ 22676], 60.00th=[ 30802], | 70.00th=[ 41681], 80.00th=[ 57410], 90.00th=[ 84411], 95.00th=[103285], | 99.00th=[154141], 99.50th=[185598], 99.90th=[256902], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 127, per=25.03%, avg=53.32, stdev=24.91, samples=229 iops : min= 1, max= 31, avg=12.67, stdev= 6.27, samples=229 lat (usec) : 50=0.52%, 100=1.33%, 250=0.16%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.55% lat (msec) : 2=8.11%, 4=4.17%, 10=5.53%, 20=12.27%, 50=39.55% lat (msec) : 100=23.01%, 250=4.59%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=4.51%, ctx=6308, 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=179383: Thu Aug 27 17:44:18 2026 read: IOPS=12, BW=51.4KiB/s (52.7kB/s)(6052KiB/117662msec) clat (usec): min=30, max=418245, avg=43349.69, stdev=32221.95 lat (usec): min=30, max=418247, avg=43356.45, stdev=32223.42 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 9110], 10.00th=[ 14222], 20.00th=[ 20841], | 30.00th=[ 25822], 40.00th=[ 30802], 50.00th=[ 35914], 60.00th=[ 43254], | 70.00th=[ 50594], 80.00th=[ 61080], 90.00th=[ 79168], 95.00th=[102237], | 99.00th=[156238], 99.50th=[183501], 99.90th=[242222], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 7, max= 133, per=25.26%, avg=51.28, stdev=20.63, samples=230 iops : min= 1, max= 33, avg=12.15, stdev= 5.20, samples=230 write: IOPS=13, BW=52.0KiB/s (54.3kB/s)(6236KiB/117662msec); 0 zone resets clat (usec): min=875, max=907869, avg=33095.82, stdev=40524.89 lat (usec): min=876, max=907871, avg=33097.72, stdev=40525.22 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1156], 10.00th=[ 1287], 20.00th=[ 2999], | 30.00th=[ 6325], 40.00th=[ 15664], 50.00th=[ 23987], 60.00th=[ 32637], | 70.00th=[ 41157], 80.00th=[ 56361], 90.00th=[ 79168], 95.00th=[ 99091], | 99.00th=[152044], 99.50th=[173016], 99.90th=[252707], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 135, per=24.76%, avg=52.74, stdev=23.22, samples=230 iops : min= 1, max= 33, avg=12.53, stdev= 5.85, samples=230 lat (usec) : 50=0.52%, 100=1.37%, 500=0.03%, 1000=0.33% lat (msec) : 2=7.58%, 4=4.59%, 10=5.83%, 20=12.08%, 50=39.78% lat (msec) : 100=22.88%, 250=4.92%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=4.58%, ctx=6371, 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=204KiB/s (209kB/s), 50.6KiB/s-51.4KiB/s (51.8kB/s-52.7kB/s), io=23.4MiB (24.6MB), run=117195-117844msec WRITE: bw=213KiB/s (218kB/s), 52.0KiB/s-54.1KiB/s (54.3kB/s-55.4kB/s), io=24.6MiB (25.7MB), run=117195-117844msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179375: Thu Aug 27 17:44:49 2026 read: IOPS=10, BW=40.4KiB/s (41.4kB/s)(5992KiB/148316msec) clat (msec): min=5, max=1041, avg=38.30, stdev=43.93 lat (msec): min=5, max=1041, avg=38.30, stdev=43.93 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 31], | 70.00th=[ 41], 80.00th=[ 59], 90.00th=[ 87], 95.00th=[ 120], | 99.00th=[ 174], 99.50th=[ 182], 99.90th=[ 239], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 180, per=25.57%, avg=41.17, stdev=31.94, samples=282 iops : min= 1, max= 45, avg= 9.66, stdev= 8.05, samples=282 write: IOPS=10, BW=42.4KiB/s (43.5kB/s)(6296KiB/148316msec); 0 zone resets clat (msec): min=8, max=386, avg=57.52, stdev=45.35 lat (msec): min=8, max=386, avg=57.52, stdev=45.35 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 19], 20.00th=[ 24], | 30.00th=[ 28], 40.00th=[ 33], 50.00th=[ 40], 60.00th=[ 52], | 70.00th=[ 69], 80.00th=[ 90], 90.00th=[ 121], 95.00th=[ 148], | 99.00th=[ 213], 99.50th=[ 239], 99.90th=[ 355], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 149, per=25.18%, avg=42.55, stdev=30.29, samples=287 iops : min= 1, max= 37, avg=10.00, stdev= 7.65, samples=287 lat (msec) : 10=5.21%, 20=21.88%, 50=40.62%, 100=20.38%, 250=11.72% lat (msec) : 500=0.16%, 2000=0.03% cpu : usr=0.06%, sys=1.67%, ctx=4673, 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=179376: Thu Aug 27 17:44:49 2026 read: IOPS=10, BW=40.2KiB/s (41.2kB/s)(5940KiB/147732msec) clat (msec): min=4, max=998, avg=38.49, stdev=44.54 lat (msec): min=4, max=998, avg=38.49, stdev=44.54 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 31], | 70.00th=[ 41], 80.00th=[ 56], 90.00th=[ 88], 95.00th=[ 118], | 99.00th=[ 178], 99.50th=[ 203], 99.90th=[ 334], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 175, per=25.47%, avg=41.00, stdev=32.47, samples=282 iops : min= 1, max= 43, avg= 9.62, stdev= 8.18, samples=282 write: IOPS=10, BW=42.0KiB/s (44.0kB/s)(6348KiB/147732msec); 0 zone resets clat (msec): min=9, max=357, avg=56.80, stdev=42.76 lat (msec): min=9, max=357, avg=56.80, stdev=42.76 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 17], 10.00th=[ 20], 20.00th=[ 24], | 30.00th=[ 29], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 54], | 70.00th=[ 66], 80.00th=[ 87], 90.00th=[ 115], 95.00th=[ 142], | 99.00th=[ 205], 99.50th=[ 247], 99.90th=[ 334], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 143, per=25.25%, avg=42.68, stdev=28.74, samples=289 iops : min= 1, max= 35, avg=10.03, stdev= 7.25, samples=289 lat (msec) : 10=5.21%, 20=21.06%, 50=40.66%, 100=21.84%, 250=10.94% lat (msec) : 500=0.26%, 1000=0.03% cpu : usr=0.05%, sys=1.72%, ctx=4671, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179377: Thu Aug 27 17:44:49 2026 read: IOPS=10, BW=40.9KiB/s (41.8kB/s)(6028KiB/147534msec) clat (msec): min=5, max=294, avg=39.63, stdev=38.89 lat (msec): min=5, max=294, avg=39.63, stdev=38.89 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 32], | 70.00th=[ 43], 80.00th=[ 61], 90.00th=[ 91], 95.00th=[ 126], | 99.00th=[ 188], 99.50th=[ 209], 99.90th=[ 268], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 158, per=25.72%, avg=41.40, stdev=29.84, samples=284 iops : min= 1, max= 39, avg= 9.72, stdev= 7.52, samples=284 write: IOPS=10, BW=42.4KiB/s (43.4kB/s)(6260KiB/147534msec); 0 zone resets clat (msec): min=9, max=1015, avg=55.82, stdev=49.30 lat (msec): min=9, max=1015, avg=55.83, stdev=49.30 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 23], | 30.00th=[ 28], 40.00th=[ 33], 50.00th=[ 41], 60.00th=[ 51], | 70.00th=[ 67], 80.00th=[ 85], 90.00th=[ 110], 95.00th=[ 142], | 99.00th=[ 215], 99.50th=[ 247], 99.90th=[ 334], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7, max= 165, per=25.06%, avg=42.35, stdev=31.33, samples=288 iops : min= 1, max= 41, avg= 9.95, stdev= 7.90, samples=288 lat (msec) : 10=4.59%, 20=22.23%, 50=40.85%, 100=21.55%, 250=10.55% lat (msec) : 500=0.20%, 2000=0.03% cpu : usr=0.06%, sys=1.70%, ctx=4734, 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=179378: Thu Aug 27 17:44:49 2026 read: IOPS=10, BW=40.7KiB/s (41.7kB/s)(6052KiB/148631msec) clat (msec): min=4, max=333, avg=39.05, stdev=37.60 lat (msec): min=4, max=333, avg=39.05, stdev=37.60 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 32], | 70.00th=[ 42], 80.00th=[ 58], 90.00th=[ 95], 95.00th=[ 123], | 99.00th=[ 171], 99.50th=[ 180], 99.90th=[ 284], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 157, per=26.23%, avg=42.23, stdev=31.23, samples=279 iops : min= 1, max= 39, avg= 9.92, stdev= 7.88, samples=279 write: IOPS=10, BW=41.0KiB/s (42.0kB/s)(6236KiB/148631msec); 0 zone resets clat (msec): min=9, max=1005, avg=57.17, stdev=50.70 lat (msec): min=9, max=1005, avg=57.18, stdev=50.70 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 24], | 30.00th=[ 28], 40.00th=[ 33], 50.00th=[ 40], 60.00th=[ 50], | 70.00th=[ 67], 80.00th=[ 88], 90.00th=[ 121], 95.00th=[ 144], | 99.00th=[ 220], 99.50th=[ 259], 99.90th=[ 384], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 165, per=24.80%, avg=41.91, stdev=30.44, samples=289 iops : min= 1, max= 41, avg= 9.84, stdev= 7.67, samples=289 lat (msec) : 10=4.95%, 20=21.91%, 50=40.92%, 100=20.18%, 250=11.69% lat (msec) : 500=0.33%, 2000=0.03% cpu : usr=0.06%, sys=1.66%, ctx=4753, 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=162KiB/s (165kB/s), 40.2KiB/s-40.9KiB/s (41.2kB/s-41.8kB/s), io=23.4MiB (24.6MB), run=147534-148631msec WRITE: bw=169KiB/s (173kB/s), 41.0KiB/s-42.0KiB/s (42.0kB/s-44.0kB/s), io=24.6MiB (25.7MB), run=147534-148631msec 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=179423: Thu Aug 27 17:45:26 2026 read: IOPS=13, BW=219KiB/s (225kB/s)(5920KiB/26985msec) clat (usec): min=36, max=196947, avg=38737.41, stdev=27658.06 lat (usec): min=36, max=196948, avg=38738.47, stdev=27658.07 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 61], 10.00th=[ 9765], 20.00th=[ 18220], | 30.00th=[ 23200], 40.00th=[ 28967], 50.00th=[ 32900], 60.00th=[ 39584], | 70.00th=[ 47973], 80.00th=[ 56886], 90.00th=[ 71828], 95.00th=[ 90702], | 99.00th=[127402], 99.50th=[173016], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 31, max= 380, per=25.04%, avg=218.57, stdev=90.98, samples=53 iops : min= 1, max= 23, avg=12.91, stdev= 5.75, samples=53 write: IOPS=14, BW=236KiB/s (242kB/s)(6368KiB/26985msec); 0 zone resets clat (usec): min=1170, max=172007, avg=31370.03, stdev=32172.45 lat (usec): min=1171, max=172009, avg=31371.93, stdev=32172.49 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1860], 10.00th=[ 2409], 20.00th=[ 4424], | 30.00th=[ 7504], 40.00th=[ 13042], 50.00th=[ 22152], 60.00th=[ 30802], | 70.00th=[ 40633], 80.00th=[ 54789], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[154141], 99.50th=[160433], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 62, max= 384, per=25.65%, avg=235.49, stdev=86.04, samples=53 iops : min= 3, max= 24, avg=13.96, stdev= 5.45, samples=53 lat (usec) : 50=0.65%, 100=3.91%, 750=0.13% lat (msec) : 2=3.65%, 4=5.86%, 10=9.11%, 20=12.63%, 50=39.58% lat (msec) : 100=21.09%, 250=3.39% cpu : usr=0.07%, sys=5.73%, ctx=1597, 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=179424: Thu Aug 27 17:45:26 2026 read: IOPS=13, BW=213KiB/s (218kB/s)(5744KiB/27020msec) clat (usec): min=32, max=229385, avg=41265.84, stdev=28603.93 lat (usec): min=32, max=229386, avg=41267.15, stdev=28603.81 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 14091], 20.00th=[ 21890], | 30.00th=[ 26346], 40.00th=[ 32113], 50.00th=[ 36963], 60.00th=[ 42206], | 70.00th=[ 49021], 80.00th=[ 57934], 90.00th=[ 73925], 95.00th=[ 88605], | 99.00th=[160433], 99.50th=[210764], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 31, max= 350, per=24.21%, avg=211.36, stdev=74.68, samples=53 iops : min= 1, max= 21, avg=12.43, stdev= 4.74, samples=53 write: IOPS=15, BW=242KiB/s (248kB/s)(6544KiB/27020msec); 0 zone resets clat (usec): min=1132, max=158557, avg=29655.84, stdev=29899.57 lat (usec): min=1133, max=158559, avg=29657.83, stdev=29899.54 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1795], 10.00th=[ 2245], 20.00th=[ 4228], | 30.00th=[ 8848], 40.00th=[ 13173], 50.00th=[ 19268], 60.00th=[ 27395], | 70.00th=[ 35914], 80.00th=[ 51643], 90.00th=[ 74974], 95.00th=[ 92799], | 99.00th=[124257], 99.50th=[137364], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 31, max= 568, per=26.20%, avg=240.51, stdev=114.05, samples=53 iops : min= 1, max= 35, avg=14.28, stdev= 7.24, samples=53 lat (usec) : 50=0.39%, 100=2.99% lat (msec) : 2=4.43%, 4=5.08%, 10=8.85%, 20=12.89%, 50=41.15% lat (msec) : 100=21.09%, 250=3.12% cpu : usr=0.07%, sys=6.13%, ctx=1699, 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=179425: Thu Aug 27 17:45:26 2026 read: IOPS=14, BW=228KiB/s (234kB/s)(6256KiB/27424msec) clat (usec): min=44, max=185600, avg=39264.16, stdev=26219.33 lat (usec): min=45, max=185601, avg=39265.29, stdev=26219.35 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 65], 10.00th=[ 13698], 20.00th=[ 19268], | 30.00th=[ 25035], 40.00th=[ 30540], 50.00th=[ 34866], 60.00th=[ 40633], | 70.00th=[ 46924], 80.00th=[ 55313], 90.00th=[ 70779], 95.00th=[ 88605], | 99.00th=[125305], 99.50th=[173016], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 62, max= 407, per=25.81%, avg=225.30, stdev=79.37, samples=53 iops : min= 3, max= 25, avg=13.32, stdev= 5.01, samples=53 write: IOPS=13, BW=220KiB/s (225kB/s)(6032KiB/27424msec); 0 zone resets clat (usec): min=943, max=149038, avg=31501.58, stdev=29160.50 lat (usec): min=945, max=149040, avg=31507.70, stdev=29157.23 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1860], 10.00th=[ 2606], 20.00th=[ 5604], | 30.00th=[ 9110], 40.00th=[ 16909], 50.00th=[ 23987], 60.00th=[ 30278], | 70.00th=[ 39584], 80.00th=[ 55313], 90.00th=[ 71828], 95.00th=[ 91751], | 99.00th=[117965], 99.50th=[135267], 99.90th=[149947], 99.95th=[149947], | 99.99th=[149947] bw ( KiB/s): min= 63, max= 446, per=23.17%, avg=212.68, stdev=88.62, samples=53 iops : min= 3, max= 27, avg=12.53, stdev= 5.63, samples=53 lat (usec) : 50=0.26%, 100=3.26%, 250=0.13%, 1000=0.13% lat (msec) : 2=2.73%, 4=4.95%, 10=7.81%, 20=13.41%, 50=42.32% lat (msec) : 100=21.74%, 250=3.26% cpu : usr=0.06%, sys=5.91%, ctx=1740, 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=179426: Thu Aug 27 17:45:26 2026 read: IOPS=14, BW=231KiB/s (236kB/s)(6032KiB/26122msec) clat (usec): min=38, max=200528, avg=38031.10, stdev=28045.03 lat (usec): min=38, max=200529, avg=38036.53, stdev=28055.38 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 17171], | 30.00th=[ 24249], 40.00th=[ 29230], 50.00th=[ 33424], 60.00th=[ 40109], | 70.00th=[ 47449], 80.00th=[ 57410], 90.00th=[ 71828], 95.00th=[ 85459], | 99.00th=[126354], 99.50th=[152044], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 94, max= 412, per=26.21%, avg=228.82, stdev=76.79, samples=51 iops : min= 5, max= 25, avg=13.55, stdev= 4.82, samples=51 write: IOPS=14, BW=239KiB/s (245kB/s)(6256KiB/26122msec); 0 zone resets clat (usec): min=1371, max=154535, avg=29688.89, stdev=30152.85 lat (usec): min=1373, max=154539, avg=29690.89, stdev=30152.96 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1876], 10.00th=[ 2606], 20.00th=[ 4621], | 30.00th=[ 7111], 40.00th=[ 11863], 50.00th=[ 19268], 60.00th=[ 27919], | 70.00th=[ 39060], 80.00th=[ 51119], 90.00th=[ 70779], 95.00th=[ 88605], | 99.00th=[137364], 99.50th=[145753], 99.90th=[154141], 99.95th=[154141], | 99.99th=[154141] bw ( KiB/s): min= 63, max= 416, per=25.99%, avg=238.59, stdev=83.91, samples=51 iops : min= 3, max= 26, avg=14.18, stdev= 5.34, samples=51 lat (usec) : 50=0.78%, 100=5.21%, 250=0.52%, 750=0.13% lat (msec) : 2=3.12%, 4=4.95%, 10=10.81%, 20=11.46%, 50=38.93% lat (msec) : 100=20.70%, 250=3.39% cpu : usr=0.06%, sys=5.79%, ctx=1589, 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=873KiB/s (894kB/s), 213KiB/s-231KiB/s (218kB/s-236kB/s), io=23.4MiB (24.5MB), run=26122-27424msec WRITE: bw=919KiB/s (941kB/s), 220KiB/s-242KiB/s (225kB/s-248kB/s), io=24.6MiB (25.8MB), run=26122-27424msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179428: Thu Aug 27 17:45:36 2026 read: IOPS=10, BW=165KiB/s (169kB/s)(5920KiB/35831msec) clat (msec): min=6, max=268, avg=39.36, stdev=34.84 lat (msec): min=6, max=268, avg=39.36, stdev=34.84 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 54], 90.00th=[ 87], 95.00th=[ 105], | 99.00th=[ 174], 99.50th=[ 211], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 30, max= 415, per=25.17%, avg=166.14, stdev=96.40, samples=69 iops : min= 1, max= 25, avg= 9.64, stdev= 6.07, samples=69 write: IOPS=11, BW=178KiB/s (182kB/s)(6368KiB/35831msec); 0 zone resets clat (msec): min=11, max=256, avg=53.30, stdev=36.78 lat (msec): min=11, max=256, avg=53.30, stdev=36.79 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 50], | 70.00th=[ 59], 80.00th=[ 75], 90.00th=[ 96], 95.00th=[ 129], | 99.00th=[ 199], 99.50th=[ 241], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 30, max= 510, per=25.94%, avg=180.06, stdev=100.23, samples=69 iops : min= 1, max= 31, avg=10.52, stdev= 6.29, samples=69 lat (msec) : 10=2.21%, 20=14.97%, 50=52.21%, 100=22.53%, 250=7.81% lat (msec) : 500=0.26% cpu : usr=0.05%, sys=1.93%, 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=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=179429: Thu Aug 27 17:45:36 2026 read: IOPS=9, BW=158KiB/s (162kB/s)(5744KiB/36274msec) clat (msec): min=6, max=207, avg=39.83, stdev=36.16 lat (msec): min=6, max=207, avg=39.83, stdev=36.16 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 60], 90.00th=[ 93], 95.00th=[ 114], | 99.00th=[ 190], 99.50th=[ 199], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 30, max= 444, per=24.16%, avg=159.47, stdev=106.17, samples=70 iops : min= 1, max= 27, avg= 9.21, stdev= 6.66, samples=70 write: IOPS=11, BW=180KiB/s (185kB/s)(6544KiB/36274msec); 0 zone resets clat (msec): min=10, max=271, avg=53.63, stdev=37.62 lat (msec): min=10, max=271, avg=53.63, stdev=37.62 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 36], 50.00th=[ 43], 60.00th=[ 50], | 70.00th=[ 63], 80.00th=[ 78], 90.00th=[ 100], 95.00th=[ 121], | 99.00th=[ 197], 99.50th=[ 243], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 61, max= 479, per=25.77%, avg=178.83, stdev=102.69, samples=71 iops : min= 3, max= 29, avg=10.44, stdev= 6.49, samples=71 lat (msec) : 10=2.21%, 20=19.01%, 50=47.53%, 100=22.27%, 250=8.72% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=1.81%, ctx=1169, 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=179430: Thu Aug 27 17:45:36 2026 read: IOPS=10, BW=175KiB/s (179kB/s)(6256KiB/35719msec) clat (msec): min=5, max=217, avg=36.90, stdev=32.26 lat (msec): min=5, max=217, avg=36.91, stdev=32.26 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 54], 90.00th=[ 84], 95.00th=[ 100], | 99.00th=[ 178], 99.50th=[ 197], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 30, max= 606, per=27.08%, avg=178.71, stdev=121.17, samples=69 iops : min= 1, max= 37, avg=10.43, stdev= 7.61, samples=69 write: IOPS=10, BW=169KiB/s (173kB/s)(6032KiB/35719msec); 0 zone resets clat (msec): min=12, max=258, avg=56.34, stdev=39.85 lat (msec): min=12, max=258, avg=56.35, stdev=39.86 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 31], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 53], | 70.00th=[ 66], 80.00th=[ 79], 90.00th=[ 108], 95.00th=[ 131], | 99.00th=[ 224], 99.50th=[ 234], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 31, max= 479, per=24.14%, avg=167.51, stdev=95.62, samples=70 iops : min= 1, max= 29, avg= 9.73, stdev= 6.02, samples=70 lat (msec) : 10=2.60%, 20=18.49%, 50=46.88%, 100=23.96%, 250=7.94% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=2.05%, ctx=1132, 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=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=179431: Thu Aug 27 17:45:36 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(6032KiB/35122msec) clat (msec): min=4, max=233, avg=37.99, stdev=34.13 lat (msec): min=4, max=233, avg=37.99, stdev=34.13 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 55], 90.00th=[ 80], 95.00th=[ 109], | 99.00th=[ 190], 99.50th=[ 209], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 31, max= 574, per=26.14%, avg=172.54, stdev=100.55, samples=68 iops : min= 1, max= 35, avg=10.04, stdev= 6.32, samples=68 write: IOPS=11, BW=178KiB/s (182kB/s)(6256KiB/35122msec); 0 zone resets clat (msec): min=13, max=275, avg=53.07, stdev=36.06 lat (msec): min=13, max=275, avg=53.07, stdev=36.06 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 28], | 30.00th=[ 32], 40.00th=[ 36], 50.00th=[ 42], 60.00th=[ 50], | 70.00th=[ 58], 80.00th=[ 75], 90.00th=[ 100], 95.00th=[ 130], | 99.00th=[ 190], 99.50th=[ 234], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 416, per=25.53%, avg=177.14, stdev=98.48, samples=69 iops : min= 1, max= 26, avg=10.33, stdev= 6.21, samples=69 lat (msec) : 10=2.86%, 20=16.67%, 50=49.87%, 100=23.31%, 250=7.16% lat (msec) : 500=0.13% cpu : usr=0.05%, sys=1.94%, ctx=1125, 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=660KiB/s (676kB/s), 158KiB/s-175KiB/s (162kB/s-179kB/s), io=23.4MiB (24.5MB), run=35122-36274msec WRITE: bw=695KiB/s (711kB/s), 169KiB/s-180KiB/s (173kB/s-185kB/s), io=24.6MiB (25.8MB), run=35122-36274msec 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=179442: Thu Aug 27 17:45:48 2026 read: IOPS=2, BW=2306KiB/s (2361kB/s)(7168KiB/3109msec) clat (msec): min=3, max=295, avg=193.30, stdev=94.89 lat (msec): min=3, max=295, avg=193.30, stdev=94.89 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 171], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 213], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 257], 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= 1715, max= 4096, per=53.12%, avg=2654.00, stdev=1059.81, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 write: IOPS=1, BW=1647KiB/s (1686kB/s)(5120KiB/3109msec); 0 zone resets clat (msec): min=155, max=543, avg=327.66, stdev=170.64 lat (msec): min=155, max=543, avg=327.78, stdev=170.62 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 192], 40.00th=[ 192], 50.00th=[ 279], 60.00th=[ 279], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1715, max= 2048, per=27.97%, avg=1956.25, stdev=161.07, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 4=8.33%, 250=50.00%, 500=33.33%, 750=8.33% cpu : usr=0.06%, sys=14.61%, ctx=176, 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=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=179443: Thu Aug 27 17:45:48 2026 read: IOPS=0, BW=500KiB/s (512kB/s)(2048KiB/4099msec) clat (usec): min=1468, max=203961, avg=102715.03, stdev=143184.69 lat (usec): min=1469, max=203964, avg=102716.99, stdev=143185.56 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1467], 10.00th=[ 1467], 20.00th=[ 1467], | 30.00th=[ 1467], 40.00th=[ 1467], 50.00th=[ 1467], 60.00th=[204473], | 70.00th=[204473], 80.00th=[204473], 90.00th=[204473], 95.00th=[204473], | 99.00th=[204473], 99.50th=[204473], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 1380, max= 2048, per=34.31%, avg=1714.00, stdev=472.35, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2498KiB/s (2558kB/s)(10.0MiB/4099msec); 0 zone resets clat (msec): min=135, max=595, avg=374.40, stdev=201.35 lat (msec): min=135, max=595, avg=374.74, stdev=201.67 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 188], 40.00th=[ 232], 50.00th=[ 234], 60.00th=[ 518], | 70.00th=[ 523], 80.00th=[ 584], 90.00th=[ 592], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1715, max= 4096, per=38.03%, avg=2660.00, stdev=1097.51, samples=6 iops : min= 1, max= 4, avg= 2.00, stdev= 1.26, samples=6 lat (msec) : 2=8.33%, 250=50.00%, 750=41.67% cpu : usr=0.00%, sys=14.40%, ctx=115, 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=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=179444: Thu Aug 27 17:45:48 2026 read: IOPS=1, BW=1818KiB/s (1862kB/s)(6144KiB/3379msec) clat (usec): min=751, max=358081, avg=178447.98, stdev=149546.07 lat (usec): min=753, max=358082, avg=178449.50, stdev=149546.04 clat percentiles (usec): | 1.00th=[ 750], 5.00th=[ 750], 10.00th=[ 750], 20.00th=[ 2114], | 30.00th=[ 2114], 40.00th=[200279], 50.00th=[200279], 60.00th=[206570], | 70.00th=[304088], 80.00th=[304088], 90.00th=[358613], 95.00th=[358613], | 99.00th=[358613], 99.50th=[358613], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 2048, max= 4096, per=68.15%, avg=3405.00, stdev=1175.26, samples=3 iops : min= 2, max= 4, avg= 3.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1818KiB/s (1862kB/s)(6144KiB/3379msec); 0 zone resets clat (msec): min=261, max=573, avg=380.94, stdev=112.47 lat (msec): min=261, max=573, avg=381.01, stdev=112.45 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 372], | 70.00th=[ 430], 80.00th=[ 430], 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= 1715, max= 2782, per=30.59%, avg=2139.75, stdev=453.35, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 1000=8.33% lat (msec) : 4=8.33%, 250=16.67%, 500=58.33%, 750=8.33% cpu : usr=0.03%, sys=15.01%, ctx=182, 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=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=179445: Thu Aug 27 17:45:48 2026 read: IOPS=1, BW=1545KiB/s (1583kB/s)(5120KiB/3313msec) clat (usec): min=537, max=320171, avg=118425.92, stdev=161553.43 lat (usec): min=539, max=320172, avg=118427.15, stdev=161553.69 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[ 537], | 30.00th=[ 594], 40.00th=[ 594], 50.00th=[ 2474], 60.00th=[ 2474], | 70.00th=[267387], 80.00th=[267387], 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= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2164KiB/s (2216kB/s)(7168KiB/3313msec); 0 zone resets clat (msec): min=181, max=774, avg=364.16, stdev=215.49 lat (msec): min=181, max=774, avg=364.25, stdev=215.47 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 226], | 30.00th=[ 230], 40.00th=[ 230], 50.00th=[ 288], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 542], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1410, max= 4096, per=39.19%, avg=2740.75, stdev=1237.21, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (usec) : 750=16.67% lat (msec) : 4=8.33%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=17.18%, ctx=169, 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=4996KiB/s (5116kB/s), 500KiB/s-2306KiB/s (512kB/s-2361kB/s), io=20.0MiB (20.0MB), run=3109-4099msec WRITE: bw=6995KiB/s (7163kB/s), 1647KiB/s-2498KiB/s (1686kB/s-2558kB/s), io=28.0MiB (29.4MB), run=3109-4099msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179447: Thu Aug 27 17:45:49 2026 read: IOPS=1, BW=1516KiB/s (1552kB/s)(7168KiB/4728msec) clat (msec): min=72, max=1128, avg=309.42, stdev=377.43 lat (msec): min=72, max=1128, avg=309.43, stdev=377.43 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 131], 40.00th=[ 131], 50.00th=[ 155], 60.00th=[ 199], | 70.00th=[ 199], 80.00th=[ 401], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1438, max= 4031, per=72.05%, avg=3120.67, stdev=1458.86, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1083KiB/s (1109kB/s)(5120KiB/4728msec); 0 zone resets clat (msec): min=94, max=1045, avg=415.26, stdev=374.86 lat (msec): min=94, max=1045, avg=415.35, stdev=374.86 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 95], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 439], 80.00th=[ 439], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 1851, max= 4007, per=48.30%, avg=2929.00, stdev=1524.52, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (msec) : 100=25.00%, 250=33.33%, 500=25.00%, 2000=16.67% cpu : usr=0.00%, sys=4.91%, ctx=123, 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=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=179448: Thu Aug 27 17:45:49 2026 read: IOPS=0, BW=446KiB/s (457kB/s)(2048KiB/4593msec) clat (msec): min=93, max=105, avg=99.24, stdev= 8.80 lat (msec): min=93, max=105, avg=99.25, stdev= 8.80 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 93], | 30.00th=[ 93], 40.00th=[ 93], 50.00th=[ 93], 60.00th=[ 106], | 70.00th=[ 106], 80.00th=[ 106], 90.00th=[ 106], 95.00th=[ 106], | 99.00th=[ 106], 99.50th=[ 106], 99.90th=[ 106], 99.95th=[ 106], | 99.99th=[ 106] bw ( KiB/s): min= 1412, max= 2015, per=39.56%, avg=1713.50, stdev=426.39, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2229KiB/s (2283kB/s)(10.0MiB/4593msec); 0 zone resets clat (msec): min=169, max=881, avg=390.23, stdev=240.12 lat (msec): min=169, max=881, avg=390.33, stdev=240.12 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 197], | 30.00th=[ 209], 40.00th=[ 245], 50.00th=[ 253], 60.00th=[ 275], | 70.00th=[ 472], 80.00th=[ 531], 90.00th=[ 667], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1851, max= 6011, per=49.33%, avg=2991.17, stdev=1693.70, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=6.36%, ctx=150, 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=179449: Thu Aug 27 17:45:49 2026 read: IOPS=1, BW=1464KiB/s (1499kB/s)(6144KiB/4198msec) clat (msec): min=59, max=604, avg=189.87, stdev=205.46 lat (msec): min=59, max=604, avg=189.87, stdev=205.46 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 89], | 30.00th=[ 89], 40.00th=[ 110], 50.00th=[ 110], 60.00th=[ 140], | 70.00th=[ 140], 80.00th=[ 140], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1851, max= 4007, per=57.43%, avg=2487.25, stdev=1017.31, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1464KiB/s (1499kB/s)(6144KiB/4198msec); 0 zone resets clat (msec): min=76, max=855, avg=482.75, stdev=259.36 lat (msec): min=76, max=856, avg=482.93, stdev=259.52 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 523], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 1896, max= 2048, per=33.04%, avg=2003.40, stdev=62.36, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=25.00%, 250=25.00%, 500=8.33%, 750=33.33%, 1000=8.33% cpu : usr=0.05%, sys=3.93%, ctx=62, 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=179450: Thu Aug 27 17:45:49 2026 read: IOPS=1, BW=1097KiB/s (1124kB/s)(5120KiB/4666msec) clat (msec): min=121, max=568, avg=231.98, stdev=189.56 lat (msec): min=121, max=568, avg=231.99, stdev=189.56 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 123], | 30.00th=[ 131], 40.00th=[ 131], 50.00th=[ 153], 60.00th=[ 153], | 70.00th=[ 188], 80.00th=[ 188], 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= 1851, max= 6047, per=91.18%, avg=3949.00, stdev=2967.02, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1536KiB/s (1573kB/s)(7168KiB/4666msec); 0 zone resets clat (msec): min=172, max=984, avg=426.77, stdev=276.85 lat (msec): min=172, max=984, avg=426.86, stdev=276.87 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 228], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 372], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 510], 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= 1381, max= 4007, per=37.44%, avg=2270.60, stdev=1006.12, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=58.33%, 500=16.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=4.16%, ctx=105, 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=4332KiB/s (4436kB/s), 446KiB/s-1516KiB/s (457kB/s-1552kB/s), io=20.0MiB (20.0MB), run=4198-4728msec WRITE: bw=6064KiB/s (6210kB/s), 1083KiB/s-2229KiB/s (1109kB/s-2283kB/s), io=28.0MiB (29.4MB), run=4198-4728msec 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=179456: Thu Aug 27 17:46:00 2026 read: IOPS=3, BW=12.0MiB/s (12.6MB/s)(12.0MiB/996msec) clat (msec): min=237, max=423, avg=313.09, stdev=97.35 lat (msec): min=237, max=423, avg=313.09, stdev=97.35 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 279], | 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= 7433, max= 7433, per=100.00%, avg=7433.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=66.67% cpu : usr=0.00%, sys=14.07%, ctx=58, 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=179457: Thu Aug 27 17:46:00 2026 read: IOPS=0, BW=1568KiB/s (1606kB/s)(4096KiB/2612msec) clat (nsec): min=997611k, max=997611k, avg=997610781.00, stdev= 0.00 lat (nsec): min=997614k, max=997614k, avg=997613764.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 995], 5.00th=[ 995], 10.00th=[ 995], 20.00th=[ 995], | 30.00th=[ 995], 40.00th=[ 995], 50.00th=[ 995], 60.00th=[ 995], | 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= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3136KiB/s (3212kB/s)(8192KiB/2612msec); 0 zone resets clat (msec): min=733, max=805, avg=769.92, stdev=50.87 lat (msec): min=734, max=806, avg=770.40, stdev=50.82 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 810], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 8175, max= 8175, per=84.16%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.08%, sys=3.94%, ctx=54, 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=179458: Thu Aug 27 17:46:00 2026 write: IOPS=0, BW=3643KiB/s (3730kB/s)(12.0MiB/3373msec); 0 zone resets clat (msec): min=217, max=2781, avg=1085.96, stdev=1468.51 lat (msec): min=217, max=2783, avg=1086.76, stdev=1469.37 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 259], 50.00th=[ 259], 60.00th=[ 259], | 70.00th=[ 2769], 80.00th=[ 2769], 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= 8159, max= 8159, per=83.99%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.61%, ctx=37, 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=179459: Thu Aug 27 17:46:00 2026 write: IOPS=1, BW=6104KiB/s (6251kB/s)(12.0MiB/2013msec); 0 zone resets clat (msec): min=238, max=1414, avg=648.23, stdev=664.55 lat (msec): min=240, max=1415, avg=648.98, stdev=664.29 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min=11719, max=11719, per=100.00%, avg=11719.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.05%, sys=6.81%, ctx=62, 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=6273KiB/s (6423kB/s), 1568KiB/s-12.0MiB/s (1606kB/s-12.6MB/s), io=16.0MiB (16.8MB), run=996-2612msec WRITE: bw=9715KiB/s (9948kB/s), 3136KiB/s-6104KiB/s (3212kB/s-6251kB/s), io=32.0MiB (33.6MB), run=2013-3373msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179461: Thu Aug 27 17:46:01 2026 read: IOPS=1, BW=5080KiB/s (5202kB/s)(12.0MiB/2419msec) clat (msec): min=674, max=808, avg=726.51, stdev=71.56 lat (msec): min=674, max=808, avg=726.51, stdev=71.56 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 8094, max= 8159, per=100.00%, avg=8126.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=13.07%, ctx=390, 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=179462: Thu Aug 27 17:46:01 2026 read: IOPS=0, BW=2207KiB/s (2260kB/s)(4096KiB/1856msec) clat (nsec): min=747481k, max=747481k, avg=747480702.00, stdev= 0.00 lat (nsec): min=747483k, max=747483k, avg=747483310.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4414KiB/s (4520kB/s)(8192KiB/1856msec); 0 zone resets clat (msec): min=453, max=482, avg=468.08, stdev=20.33 lat (msec): min=454, max=482, avg=468.50, stdev=20.34 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 485], 95.00th=[ 485], | 99.00th=[ 485], 99.50th=[ 485], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 8175, max= 8175, per=88.17%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=10.51%, ctx=116, 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=179463: Thu Aug 27 17:46:01 2026 write: IOPS=0, BW=3477KiB/s (3561kB/s)(12.0MiB/3534msec); 0 zone resets clat (msec): min=158, max=2676, avg=1056.99, stdev=1405.36 lat (msec): min=158, max=2677, avg=1057.72, stdev=1405.50 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 2668], 80.00th=[ 2668], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 8110, max= 8110, per=87.47%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.06%, sys=2.92%, ctx=66, 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=179464: Thu Aug 27 17:46:01 2026 write: IOPS=1, BW=4748KiB/s (4862kB/s)(12.0MiB/2588msec); 0 zone resets clat (msec): min=401, max=1681, avg=835.83, stdev=732.41 lat (msec): min=402, max=1681, avg=836.21, stdev=732.26 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 6511, max= 8159, per=79.11%, avg=7335.00, stdev=1165.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.04%, sys=3.94%, ctx=62, 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=6773KiB/s (6936kB/s), 2207KiB/s-5080KiB/s (2260kB/s-5202kB/s), io=16.0MiB (16.8MB), run=1856-2419msec WRITE: bw=9272KiB/s (9495kB/s), 3477KiB/s-4748KiB/s (3561kB/s-4862kB/s), io=32.0MiB (33.6MB), run=1856-3534msec