== sanity test 398b: DIO and buffer IO race ============== 10:28:59 (1787063339) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.23721 s, 15.5 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=196269: Tue Aug 18 10:29:59 2026 read: IOPS=29, BW=116KiB/s (119kB/s)(5992KiB/51482msec) clat (usec): min=32, max=70360, avg=17944.11, stdev=9333.64 lat (usec): min=33, max=70360, avg=17944.64, stdev=9333.65 clat percentiles (usec): | 1.00th=[ 102], 5.00th=[ 7111], 10.00th=[ 8586], 20.00th=[10814], | 30.00th=[12387], 40.00th=[14484], 50.00th=[16319], 60.00th=[18482], | 70.00th=[20841], 80.00th=[23987], 90.00th=[29492], 95.00th=[35914], | 99.00th=[47973], 99.50th=[53216], 99.90th=[69731], 99.95th=[70779], | 99.99th=[70779] bw ( KiB/s): min= 8, max= 192, per=25.08%, avg=116.85, stdev=32.85, samples=101 iops : min= 2, max= 48, avg=28.81, stdev= 8.28, samples=101 write: IOPS=30, BW=122KiB/s (125kB/s)(6296KiB/51482msec); 0 zone resets clat (usec): min=789, max=1277.0k, avg=15436.20, stdev=33437.67 lat (usec): min=789, max=1277.1k, avg=15436.83, stdev=33437.68 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 2999], 10.00th=[ 3392], | 20.00th=[ 4555], 30.00th=[ 7767], 40.00th=[ 10552], | 50.00th=[ 12518], 60.00th=[ 15008], 70.00th=[ 18744], | 80.00th=[ 23200], 90.00th=[ 28705], 95.00th=[ 33424], | 99.00th=[ 46400], 99.50th=[ 50070], 99.90th=[ 66323], | 99.95th=[1283458], 99.99th=[1283458] bw ( KiB/s): min= 8, max= 208, per=25.41%, avg=123.98, stdev=36.71, samples=100 iops : min= 2, max= 52, avg=30.60, stdev= 9.26, samples=100 lat (usec) : 50=0.03%, 100=0.42%, 250=0.78%, 500=0.03%, 1000=0.26% lat (msec) : 2=0.42%, 4=7.68%, 10=17.71%, 20=43.07%, 50=28.97% lat (msec) : 100=0.59%, 2000=0.03% cpu : usr=0.07%, sys=25.78%, ctx=9629, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=196270: Tue Aug 18 10:29:59 2026 read: IOPS=28, BW=116KiB/s (119kB/s)(5940KiB/51259msec) clat (usec): min=33, max=1311.2k, avg=18492.15, stdev=34638.90 lat (usec): min=33, max=1311.2k, avg=18492.69, stdev=34638.94 clat percentiles (usec): | 1.00th=[ 116], 5.00th=[ 7635], 10.00th=[ 8979], | 20.00th=[ 10683], 30.00th=[ 12256], 40.00th=[ 14091], | 50.00th=[ 16319], 60.00th=[ 18482], 70.00th=[ 20841], | 80.00th=[ 23462], 90.00th=[ 28443], 95.00th=[ 34341], | 99.00th=[ 44827], 99.50th=[ 49021], 99.90th=[ 65799], | 99.95th=[1317012], 99.99th=[1317012] bw ( KiB/s): min= 8, max= 191, per=25.37%, avg=118.22, stdev=31.41, samples=100 iops : min= 2, max= 47, avg=29.16, stdev= 7.88, samples=100 write: IOPS=30, BW=124KiB/s (127kB/s)(6348KiB/51259msec); 0 zone resets clat (usec): min=786, max=71026, avg=14793.15, stdev=10918.11 lat (usec): min=786, max=71027, avg=14793.79, stdev=10918.19 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 2868], 10.00th=[ 3326], 20.00th=[ 4228], | 30.00th=[ 7242], 40.00th=[10028], 50.00th=[12649], 60.00th=[15270], | 70.00th=[18744], 80.00th=[23200], 90.00th=[30278], 95.00th=[35914], | 99.00th=[47449], 99.50th=[55313], 99.90th=[67634], 99.95th=[70779], | 99.99th=[70779] bw ( KiB/s): min= 47, max= 288, per=26.14%, avg=127.58, stdev=37.90, samples=99 iops : min= 11, max= 72, avg=31.49, stdev= 9.58, samples=99 lat (usec) : 50=0.07%, 100=0.13%, 250=0.75%, 500=0.03%, 1000=0.26% lat (msec) : 2=0.65%, 4=8.50%, 10=17.77%, 20=41.96%, 50=29.26% lat (msec) : 100=0.59%, 2000=0.03% cpu : usr=0.07%, sys=25.73%, ctx=9613, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=196271: Tue Aug 18 10:29:59 2026 read: IOPS=29, BW=118KiB/s (121kB/s)(6028KiB/50919msec) clat (usec): min=34, max=1312.4k, avg=18717.69, stdev=34497.72 lat (usec): min=34, max=1312.4k, avg=18718.28, stdev=34497.72 clat percentiles (usec): | 1.00th=[ 119], 5.00th=[ 7963], 10.00th=[ 9241], | 20.00th=[ 10945], 30.00th=[ 12518], 40.00th=[ 14353], | 50.00th=[ 16188], 60.00th=[ 18220], 70.00th=[ 20841], | 80.00th=[ 23987], 90.00th=[ 28705], 95.00th=[ 33817], | 99.00th=[ 49021], 99.50th=[ 53740], 99.90th=[ 80217], | 99.95th=[1317012], 99.99th=[1317012] bw ( KiB/s): min= 8, max= 208, per=25.87%, avg=120.56, stdev=30.55, samples=99 iops : min= 2, max= 52, avg=29.74, stdev= 7.66, samples=99 write: IOPS=30, BW=123KiB/s (126kB/s)(6260KiB/50919msec); 0 zone resets clat (usec): min=782, max=66334, avg=14312.90, stdev=10418.61 lat (usec): min=782, max=66335, avg=14313.53, stdev=10418.62 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 2868], 10.00th=[ 3326], 20.00th=[ 4047], | 30.00th=[ 6783], 40.00th=[ 9634], 50.00th=[11863], 60.00th=[14746], | 70.00th=[18744], 80.00th=[23200], 90.00th=[29230], 95.00th=[33424], | 99.00th=[45351], 99.50th=[47449], 99.90th=[63701], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 19, max= 191, per=25.60%, avg=124.94, stdev=35.54, samples=99 iops : min= 4, max= 47, avg=30.83, stdev= 8.94, samples=99 lat (usec) : 50=0.03%, 100=0.07%, 250=0.81%, 1000=0.42% lat (msec) : 2=0.59%, 4=9.02%, 10=17.55%, 20=42.06%, 50=28.87% lat (msec) : 100=0.55%, 2000=0.03% cpu : usr=0.06%, sys=25.85%, ctx=9554, 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=196272: Tue Aug 18 10:29:59 2026 read: IOPS=29, BW=120KiB/s (123kB/s)(6052KiB/50588msec) clat (usec): min=33, max=64973, avg=17617.79, stdev=8714.99 lat (usec): min=33, max=64974, avg=17618.34, stdev=8715.00 clat percentiles (usec): | 1.00th=[ 114], 5.00th=[ 7635], 10.00th=[ 8979], 20.00th=[10683], | 30.00th=[12387], 40.00th=[14091], 50.00th=[16188], 60.00th=[18220], | 70.00th=[20317], 80.00th=[23725], 90.00th=[28443], 95.00th=[33162], | 99.00th=[46924], 99.50th=[50070], 99.90th=[64226], 99.95th=[64750], | 99.99th=[64750] bw ( KiB/s): min= 56, max= 191, per=26.37%, avg=122.89, stdev=29.88, samples=97 iops : min= 14, max= 47, avg=30.31, stdev= 7.51, samples=97 write: IOPS=30, BW=123KiB/s (126kB/s)(6236KiB/50588msec); 0 zone resets clat (usec): min=770, max=1318.9k, avg=15150.60, stdev=34798.63 lat (usec): min=771, max=1318.9k, avg=15151.30, stdev=34798.63 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 2933], 10.00th=[ 3392], | 20.00th=[ 4293], 30.00th=[ 6783], 40.00th=[ 9634], | 50.00th=[ 11994], 60.00th=[ 14484], 70.00th=[ 17695], | 80.00th=[ 22414], 90.00th=[ 28705], 95.00th=[ 34341], | 99.00th=[ 53216], 99.50th=[ 59507], 99.90th=[ 66847], | 99.95th=[1317012], 99.99th=[1317012] bw ( KiB/s): min= 8, max= 223, per=25.74%, avg=125.61, stdev=36.54, samples=98 iops : min= 2, max= 55, avg=31.00, stdev= 9.21, samples=98 lat (usec) : 50=0.03%, 100=0.26%, 250=0.81%, 1000=0.42% lat (msec) : 2=0.39%, 4=8.27%, 10=18.85%, 20=43.03%, 50=26.92% lat (msec) : 100=0.98%, 2000=0.03% cpu : usr=0.06%, sys=25.90%, ctx=9545, 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=466KiB/s (478kB/s), 116KiB/s-120KiB/s (119kB/s-123kB/s), io=23.4MiB (24.6MB), run=50588-51482msec WRITE: bw=488KiB/s (500kB/s), 122KiB/s-124KiB/s (125kB/s-127kB/s), io=24.6MiB (25.7MB), run=50588-51482msec rand-rw: (groupid=0, jobs=1): err= 0: pid=196274: Tue Aug 18 10:30:06 2026 read: IOPS=25, BW=103KiB/s (105kB/s)(5992KiB/58256msec) clat (msec): min=3, max=1281, avg=17.59, stdev=34.91 lat (msec): min=3, max=1281, avg=17.59, stdev=34.91 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 25], 90.00th=[ 36], 95.00th=[ 44], | 99.00th=[ 58], 99.50th=[ 64], 99.90th=[ 72], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 24, max= 320, per=25.32%, avg=104.05, stdev=62.82, samples=113 iops : min= 6, max= 80, avg=25.73, stdev=15.81, samples=113 write: IOPS=27, BW=108KiB/s (111kB/s)(6296KiB/58256msec); 0 zone resets clat (usec): min=4999, max=86621, avg=20111.00, stdev=13027.91 lat (usec): min=5000, max=86621, avg=20111.61, stdev=13027.91 clat percentiles (usec): | 1.00th=[ 5669], 5.00th=[ 6587], 10.00th=[ 7439], 20.00th=[ 8979], | 30.00th=[10552], 40.00th=[13042], 50.00th=[16319], 60.00th=[20317], | 70.00th=[25035], 80.00th=[30278], 90.00th=[37487], 95.00th=[44827], | 99.00th=[63701], 99.50th=[72877], 99.90th=[80217], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 8, max= 344, per=25.33%, avg=108.93, stdev=65.21, samples=113 iops : min= 2, max= 86, avg=26.96, stdev=16.40, samples=113 lat (msec) : 4=0.42%, 10=31.61%, 20=33.17%, 50=32.13%, 100=2.64% lat (msec) : 2000=0.03% cpu : usr=0.03%, sys=14.36%, ctx=6375, 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=196275: Tue Aug 18 10:30:06 2026 read: IOPS=25, BW=102KiB/s (104kB/s)(5940KiB/58273msec) clat (msec): min=3, max=1301, avg=17.63, stdev=35.63 lat (msec): min=3, max=1301, avg=17.63, stdev=35.63 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 13], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 36], 95.00th=[ 43], | 99.00th=[ 61], 99.50th=[ 65], 99.90th=[ 85], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8, max= 360, per=25.27%, avg=103.84, stdev=67.27, samples=114 iops : min= 2, max= 90, avg=25.68, stdev=16.91, samples=114 write: IOPS=27, BW=109KiB/s (112kB/s)(6348KiB/58273msec); 0 zone resets clat (usec): min=4944, max=82123, avg=20067.96, stdev=13088.53 lat (usec): min=4945, max=82123, avg=20068.56, stdev=13088.56 clat percentiles (usec): | 1.00th=[ 5800], 5.00th=[ 6587], 10.00th=[ 7308], 20.00th=[ 8848], | 30.00th=[10683], 40.00th=[13173], 50.00th=[16450], 60.00th=[20055], | 70.00th=[24511], 80.00th=[30016], 90.00th=[38011], 95.00th=[44827], | 99.00th=[66847], 99.50th=[74974], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 24, max= 336, per=25.80%, avg=110.92, stdev=66.55, samples=114 iops : min= 6, max= 84, avg=27.46, stdev=16.76, samples=114 lat (msec) : 4=0.42%, 10=31.51%, 20=33.53%, 50=31.67%, 100=2.83% lat (msec) : 2000=0.03% cpu : usr=0.05%, sys=14.27%, ctx=6334, 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=196276: Tue Aug 18 10:30:06 2026 read: IOPS=25, BW=103KiB/s (106kB/s)(6028KiB/58271msec) clat (usec): min=3023, max=86826, avg=15913.53, stdev=11366.55 lat (usec): min=3024, max=86826, avg=15914.06, stdev=11366.55 clat percentiles (usec): | 1.00th=[ 3982], 5.00th=[ 4817], 10.00th=[ 5407], 20.00th=[ 6390], | 30.00th=[ 8455], 40.00th=[10290], 50.00th=[12125], 60.00th=[14615], | 70.00th=[18220], 80.00th=[24511], 90.00th=[33162], 95.00th=[39584], | 99.00th=[52691], 99.50th=[56361], 99.90th=[63701], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 8, max= 352, per=25.64%, avg=105.38, stdev=68.38, samples=114 iops : min= 2, max= 88, avg=26.07, stdev=17.19, samples=114 write: IOPS=26, BW=107KiB/s (110kB/s)(6260KiB/58271msec); 0 zone resets clat (msec): min=4, max=1323, avg=21.76, stdev=35.88 lat (msec): min=4, max=1323, avg=21.76, stdev=35.88 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 21], | 70.00th=[ 26], 80.00th=[ 31], 90.00th=[ 41], 95.00th=[ 51], | 99.00th=[ 73], 99.50th=[ 80], 99.90th=[ 106], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 24, max= 312, per=25.44%, avg=109.38, stdev=63.38, samples=114 iops : min= 6, max= 78, avg=27.07, stdev=15.96, samples=114 lat (msec) : 4=0.52%, 10=31.54%, 20=33.33%, 50=31.35%, 100=3.19% lat (msec) : 250=0.03%, 2000=0.03% cpu : usr=0.05%, sys=14.43%, ctx=6312, 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=196277: Tue Aug 18 10:30:06 2026 read: IOPS=25, BW=104KiB/s (106kB/s)(6052KiB/58382msec) clat (usec): min=2413, max=86641, avg=16629.31, stdev=12396.77 lat (usec): min=2414, max=86641, avg=16629.80, stdev=12396.77 clat percentiles (usec): | 1.00th=[ 4047], 5.00th=[ 4817], 10.00th=[ 5276], 20.00th=[ 6456], | 30.00th=[ 8356], 40.00th=[10421], 50.00th=[12256], 60.00th=[15008], | 70.00th=[19006], 80.00th=[26346], 90.00th=[34341], 95.00th=[41681], | 99.00th=[58459], 99.50th=[63177], 99.90th=[76022], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 39, max= 336, per=25.76%, avg=105.88, stdev=63.46, samples=113 iops : min= 9, max= 84, avg=26.19, stdev=15.97, samples=113 write: IOPS=26, BW=107KiB/s (109kB/s)(6236KiB/58382msec); 0 zone resets clat (msec): min=4, max=1314, avg=21.16, stdev=35.33 lat (msec): min=4, max=1314, avg=21.16, stdev=35.33 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 21], | 70.00th=[ 25], 80.00th=[ 31], 90.00th=[ 39], 95.00th=[ 47], | 99.00th=[ 63], 99.50th=[ 74], 99.90th=[ 85], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 23, max= 336, per=25.16%, avg=108.18, stdev=64.27, samples=114 iops : min= 5, max= 84, avg=26.77, stdev=16.18, samples=114 lat (msec) : 4=0.42%, 10=31.18%, 20=33.72%, 50=31.58%, 100=3.06% lat (msec) : 2000=0.03% cpu : usr=0.04%, sys=14.25%, ctx=6298, 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=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=411KiB/s (421kB/s), 102KiB/s-104KiB/s (104kB/s-106kB/s), io=23.4MiB (24.6MB), run=58256-58382msec WRITE: bw=431KiB/s (441kB/s), 107KiB/s-109KiB/s (109kB/s-112kB/s), io=24.6MiB (25.7MB), run=58256-58382msec 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=196300: Tue Aug 18 10:30:26 2026 read: IOPS=26, BW=419KiB/s (429kB/s)(5920KiB/14125msec) clat (usec): min=22, max=59101, avg=19130.34, stdev=9620.30 lat (usec): min=22, max=59101, avg=19130.79, stdev=9620.32 clat percentiles (usec): | 1.00th=[ 72], 5.00th=[ 151], 10.00th=[10421], 20.00th=[12387], | 30.00th=[13960], 40.00th=[15926], 50.00th=[17957], 60.00th=[20317], | 70.00th=[22676], 80.00th=[25297], 90.00th=[30540], 95.00th=[36963], | 99.00th=[51119], 99.50th=[57934], 99.90th=[58983], 99.95th=[58983], | 99.99th=[58983] bw ( KiB/s): min= 254, max= 574, per=24.60%, avg=412.81, stdev=77.65, samples=27 iops : min= 15, max= 35, avg=25.22, stdev= 4.98, samples=27 write: IOPS=28, BW=451KiB/s (462kB/s)(6368KiB/14125msec); 0 zone resets clat (usec): min=1152, max=74711, avg=17459.66, stdev=11008.15 lat (usec): min=1153, max=74711, avg=17460.38, stdev=11008.14 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 4555], 10.00th=[ 5407], 20.00th=[ 7963], | 30.00th=[11076], 40.00th=[13173], 50.00th=[15139], 60.00th=[17433], | 70.00th=[21103], 80.00th=[26084], 90.00th=[31327], 95.00th=[40633], | 99.00th=[52167], 99.50th=[61080], 99.90th=[74974], 99.95th=[74974], | 99.99th=[74974] bw ( KiB/s): min= 224, max= 734, per=25.63%, avg=452.44, stdev=105.33, samples=27 iops : min= 14, max= 45, avg=27.70, stdev= 6.48, samples=27 lat (usec) : 50=0.39%, 100=0.52%, 250=1.69% lat (msec) : 2=1.04%, 4=1.04%, 10=13.80%, 20=44.14%, 50=36.20% lat (msec) : 100=1.17% cpu : usr=0.08%, sys=27.04%, ctx=2848, 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=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=196301: Tue Aug 18 10:30:26 2026 read: IOPS=25, BW=413KiB/s (423kB/s)(5744KiB/13912msec) clat (usec): min=55, max=55191, avg=19660.46, stdev=9070.97 lat (usec): min=56, max=55191, avg=19660.89, stdev=9070.96 clat percentiles (usec): | 1.00th=[ 95], 5.00th=[ 5932], 10.00th=[10945], 20.00th=[12911], | 30.00th=[15139], 40.00th=[16581], 50.00th=[19006], 60.00th=[20841], | 70.00th=[22676], 80.00th=[26084], 90.00th=[30278], 95.00th=[36963], | 99.00th=[46924], 99.50th=[53740], 99.90th=[55313], 99.95th=[55313], | 99.99th=[55313] bw ( KiB/s): min= 224, max= 576, per=24.62%, avg=413.11, stdev=93.45, samples=27 iops : min= 14, max= 36, avg=25.22, stdev= 5.87, samples=27 write: IOPS=29, BW=470KiB/s (482kB/s)(6544KiB/13912msec); 0 zone resets clat (usec): min=1055, max=69493, avg=16562.01, stdev=12321.19 lat (usec): min=1056, max=69494, avg=16563.01, stdev=12321.17 clat percentiles (usec): | 1.00th=[ 2073], 5.00th=[ 3589], 10.00th=[ 4883], 20.00th=[ 5932], | 30.00th=[ 8979], 40.00th=[11469], 50.00th=[13042], 60.00th=[15664], | 70.00th=[19268], 80.00th=[24773], 90.00th=[34341], 95.00th=[43254], | 99.00th=[57410], 99.50th=[59507], 99.90th=[69731], 99.95th=[69731], | 99.99th=[69731] bw ( KiB/s): min= 287, max= 736, per=26.37%, avg=465.48, stdev=103.23, samples=27 iops : min= 17, max= 46, avg=28.52, stdev= 6.52, samples=27 lat (usec) : 100=0.52%, 250=1.69% lat (msec) : 2=0.26%, 4=2.86%, 10=16.28%, 20=42.19%, 50=34.77% lat (msec) : 100=1.43% cpu : usr=0.05%, sys=27.93%, ctx=2761, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=196302: Tue Aug 18 10:30:26 2026 read: IOPS=27, BW=438KiB/s (449kB/s)(6256KiB/14273msec) clat (usec): min=31, max=88448, avg=19373.51, stdev=11141.98 lat (usec): min=31, max=88448, avg=19373.94, stdev=11141.97 clat percentiles (usec): | 1.00th=[ 105], 5.00th=[ 139], 10.00th=[ 9503], 20.00th=[12125], | 30.00th=[13960], 40.00th=[15664], 50.00th=[17695], 60.00th=[20055], | 70.00th=[22676], 80.00th=[25822], 90.00th=[32113], 95.00th=[37487], | 99.00th=[66323], 99.50th=[68682], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 253, max= 670, per=26.17%, avg=439.14, stdev=97.32, samples=28 iops : min= 15, max= 41, avg=26.86, stdev= 6.13, samples=28 write: IOPS=26, BW=423KiB/s (433kB/s)(6032KiB/14273msec); 0 zone resets clat (usec): min=1147, max=57631, avg=17621.35, stdev=11404.79 lat (usec): min=1147, max=57632, avg=17622.04, stdev=11404.79 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 4293], 10.00th=[ 5014], 20.00th=[ 6915], | 30.00th=[10421], 40.00th=[12649], 50.00th=[14877], 60.00th=[17957], | 70.00th=[21890], 80.00th=[27395], 90.00th=[33817], 95.00th=[39584], | 99.00th=[52167], 99.50th=[57410], 99.90th=[57410], 99.95th=[57410], | 99.99th=[57410] bw ( KiB/s): min= 192, max= 606, per=23.54%, avg=415.54, stdev=94.13, samples=28 iops : min= 12, max= 37, avg=25.39, stdev= 5.89, samples=28 lat (usec) : 50=0.13%, 100=0.26%, 250=2.73% lat (msec) : 2=0.52%, 4=1.30%, 10=14.84%, 20=42.84%, 50=35.81% lat (msec) : 100=1.56% cpu : usr=0.06%, sys=26.70%, ctx=2800, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=196303: Tue Aug 18 10:30:26 2026 read: IOPS=27, BW=434KiB/s (445kB/s)(6032KiB/13889msec) clat (usec): min=33, max=81805, avg=18974.05, stdev=10520.78 lat (usec): min=33, max=81805, avg=18974.61, stdev=10520.86 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 116], 10.00th=[ 8979], 20.00th=[11994], | 30.00th=[13829], 40.00th=[15664], 50.00th=[17957], 60.00th=[20579], | 70.00th=[22938], 80.00th=[25822], 90.00th=[30802], 95.00th=[35914], | 99.00th=[47973], 99.50th=[69731], 99.90th=[82314], 99.95th=[82314], | 99.99th=[82314] bw ( KiB/s): min= 192, max= 576, per=25.78%, avg=432.59, stdev=99.35, samples=27 iops : min= 12, max= 36, avg=26.48, stdev= 6.28, samples=27 write: IOPS=28, BW=450KiB/s (461kB/s)(6256KiB/13889msec); 0 zone resets clat (usec): min=1180, max=71469, avg=17170.26, stdev=11748.23 lat (usec): min=1181, max=71469, avg=17174.00, stdev=11747.13 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 4146], 10.00th=[ 4883], 20.00th=[ 6194], | 30.00th=[ 9241], 40.00th=[12387], 50.00th=[15270], 60.00th=[17695], | 70.00th=[21103], 80.00th=[25822], 90.00th=[32113], 95.00th=[40633], | 99.00th=[53216], 99.50th=[66847], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 256, max= 704, per=25.38%, avg=448.04, stdev=103.19, samples=27 iops : min= 16, max= 44, avg=27.44, stdev= 6.47, samples=27 lat (usec) : 50=0.52%, 100=1.04%, 250=2.34%, 500=0.13% lat (msec) : 2=0.78%, 4=1.82%, 10=15.10%, 20=41.02%, 50=36.07% lat (msec) : 100=1.17% cpu : usr=0.04%, sys=27.14%, ctx=2642, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1678KiB/s (1718kB/s), 413KiB/s-438KiB/s (423kB/s-449kB/s), io=23.4MiB (24.5MB), run=13889-14273msec WRITE: bw=1766KiB/s (1808kB/s), 423KiB/s-470KiB/s (433kB/s-482kB/s), io=24.6MiB (25.8MB), run=13889-14273msec rand-rw: (groupid=0, jobs=1): err= 0: pid=196305: Tue Aug 18 10:30:28 2026 read: IOPS=22, BW=363KiB/s (372kB/s)(5920KiB/16287msec) clat (usec): min=3487, max=87745, avg=18473.95, stdev=14020.91 lat (usec): min=3488, max=87746, avg=18478.53, stdev=14018.97 clat percentiles (usec): | 1.00th=[ 4047], 5.00th=[ 5276], 10.00th=[ 5932], 20.00th=[ 7111], | 30.00th=[ 8848], 40.00th=[10683], 50.00th=[13960], 60.00th=[17695], | 70.00th=[22152], 80.00th=[27132], 90.00th=[38536], 95.00th=[49546], | 99.00th=[63701], 99.50th=[85459], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 159, max= 1085, per=24.13%, avg=354.75, stdev=237.38, samples=32 iops : min= 9, max= 67, avg=21.66, stdev=14.80, samples=32 write: IOPS=24, BW=391KiB/s (400kB/s)(6368KiB/16287msec); 0 zone resets clat (usec): min=5214, max=99750, avg=23645.66, stdev=16620.18 lat (usec): min=5214, max=99751, avg=23646.72, stdev=16620.01 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 36], 90.00th=[ 46], 95.00th=[ 58], | 99.00th=[ 83], 99.50th=[ 93], 99.90th=[ 101], 99.95th=[ 101], | 99.99th=[ 101] bw ( KiB/s): min= 127, max= 1184, per=25.00%, avg=386.78, stdev=232.34, samples=32 iops : min= 7, max= 74, avg=23.66, stdev=14.59, samples=32 lat (msec) : 4=0.39%, 10=28.52%, 20=29.82%, 50=35.16%, 100=6.12% cpu : usr=0.01%, sys=13.13%, ctx=1759, 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=196306: Tue Aug 18 10:30:28 2026 read: IOPS=22, BW=354KiB/s (363kB/s)(5744KiB/16221msec) clat (usec): min=4247, max=80534, avg=18902.94, stdev=14016.48 lat (usec): min=4248, max=80534, avg=18903.39, stdev=14016.48 clat percentiles (usec): | 1.00th=[ 4621], 5.00th=[ 5800], 10.00th=[ 6390], 20.00th=[ 7701], | 30.00th=[10159], 40.00th=[12125], 50.00th=[13960], 60.00th=[16581], | 70.00th=[21365], 80.00th=[30016], 90.00th=[38011], 95.00th=[49546], | 99.00th=[67634], 99.50th=[71828], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 190, max= 958, per=23.98%, avg=352.53, stdev=200.16, samples=32 iops : min= 11, max= 59, avg=21.50, stdev=12.52, samples=32 write: IOPS=25, BW=403KiB/s (413kB/s)(6544KiB/16221msec); 0 zone resets clat (usec): min=5039, max=85708, avg=22923.06, stdev=15252.66 lat (usec): min=5040, max=85709, avg=22924.05, stdev=15252.65 clat percentiles (usec): | 1.00th=[ 5997], 5.00th=[ 6915], 10.00th=[ 7635], 20.00th=[10028], | 30.00th=[11731], 40.00th=[14484], 50.00th=[18220], 60.00th=[22938], | 70.00th=[28181], 80.00th=[35914], 90.00th=[43779], 95.00th=[51643], | 99.00th=[77071], 99.50th=[83362], 99.90th=[85459], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 191, max= 1280, per=25.85%, avg=399.94, stdev=249.69, samples=32 iops : min= 11, max= 80, avg=24.47, stdev=15.68, samples=32 lat (msec) : 10=23.96%, 20=36.20%, 50=34.90%, 100=4.95% cpu : usr=0.04%, sys=13.48%, ctx=1684, 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=196307: Tue Aug 18 10:30:28 2026 read: IOPS=24, BW=389KiB/s (399kB/s)(6256KiB/16063msec) clat (usec): min=4067, max=88804, avg=18715.04, stdev=14223.54 lat (usec): min=4067, max=88804, avg=18715.50, stdev=14223.54 clat percentiles (usec): | 1.00th=[ 4424], 5.00th=[ 5538], 10.00th=[ 6063], 20.00th=[ 7439], | 30.00th=[ 9765], 40.00th=[12387], 50.00th=[14746], 60.00th=[17171], | 70.00th=[21103], 80.00th=[26608], 90.00th=[37487], 95.00th=[47973], | 99.00th=[71828], 99.50th=[85459], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 160, max= 1437, per=26.09%, avg=383.58, stdev=258.36, samples=31 iops : min= 10, max= 89, avg=23.45, stdev=16.12, samples=31 write: IOPS=23, BW=376KiB/s (385kB/s)(6032KiB/16063msec); 0 zone resets clat (usec): min=5607, max=92340, avg=22998.71, stdev=15862.43 lat (usec): min=5608, max=92340, avg=22999.57, stdev=15862.45 clat percentiles (usec): | 1.00th=[ 6259], 5.00th=[ 7046], 10.00th=[ 7898], 20.00th=[ 9896], | 30.00th=[12125], 40.00th=[14746], 50.00th=[17695], 60.00th=[22152], | 70.00th=[27919], 80.00th=[34866], 90.00th=[45876], 95.00th=[51119], | 99.00th=[79168], 99.50th=[85459], 99.90th=[92799], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 159, max= 1053, per=23.12%, avg=357.61, stdev=198.80, samples=31 iops : min= 9, max= 65, avg=21.81, stdev=12.44, samples=31 lat (msec) : 10=25.65%, 20=36.20%, 50=33.20%, 100=4.95% cpu : usr=0.03%, sys=13.56%, ctx=1716, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=196308: Tue Aug 18 10:30:28 2026 read: IOPS=23, BW=376KiB/s (385kB/s)(6032KiB/16026msec) clat (usec): min=4273, max=79601, avg=18170.78, stdev=13325.30 lat (usec): min=4273, max=79602, avg=18171.39, stdev=13325.28 clat percentiles (usec): | 1.00th=[ 4490], 5.00th=[ 5604], 10.00th=[ 6063], 20.00th=[ 7373], | 30.00th=[ 9634], 40.00th=[11338], 50.00th=[13435], 60.00th=[16450], | 70.00th=[21103], 80.00th=[26346], 90.00th=[37487], 95.00th=[46924], | 99.00th=[56886], 99.50th=[72877], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 191, max= 1216, per=24.74%, avg=363.65, stdev=229.53, samples=31 iops : min= 11, max= 76, avg=22.19, stdev=14.36, samples=31 write: IOPS=24, BW=390KiB/s (400kB/s)(6256KiB/16026msec); 0 zone resets clat (usec): min=5105, max=93714, avg=23283.62, stdev=15963.16 lat (usec): min=5106, max=93715, avg=23284.47, stdev=15963.19 clat percentiles (usec): | 1.00th=[ 5866], 5.00th=[ 6652], 10.00th=[ 7832], 20.00th=[10028], | 30.00th=[12125], 40.00th=[14353], 50.00th=[17957], 60.00th=[23462], | 70.00th=[28181], 80.00th=[34866], 90.00th=[44303], 95.00th=[56361], | 99.00th=[74974], 99.50th=[80217], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 190, max= 1053, per=24.41%, avg=377.65, stdev=204.06, samples=31 iops : min= 11, max= 65, avg=23.06, stdev=12.75, samples=31 lat (msec) : 10=25.91%, 20=35.29%, 50=33.85%, 100=4.95% cpu : usr=0.06%, sys=13.38%, ctx=1687, 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=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=1471KiB/s (1506kB/s), 354KiB/s-389KiB/s (363kB/s-399kB/s), io=23.4MiB (24.5MB), run=16026-16287msec WRITE: bw=1547KiB/s (1584kB/s), 376KiB/s-403KiB/s (385kB/s-413kB/s), io=24.6MiB (25.8MB), run=16026-16287msec 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=196315: Tue Aug 18 10:30:37 2026 read: IOPS=3, BW=3991KiB/s (4087kB/s)(7168KiB/1796msec) clat (usec): min=493, max=190555, avg=127360.99, stdev=66423.82 lat (usec): min=494, max=190556, avg=127361.82, stdev=66423.88 clat percentiles (usec): | 1.00th=[ 494], 5.00th=[ 494], 10.00th=[ 494], 20.00th=[ 88605], | 30.00th=[122160], 40.00th=[122160], 50.00th=[137364], 60.00th=[175113], | 70.00th=[175113], 80.00th=[177210], 90.00th=[189793], 95.00th=[189793], | 99.00th=[189793], 99.50th=[189793], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 3771, max= 5189, per=71.79%, avg=4480.00, stdev=1002.68, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=2, BW=2851KiB/s (2919kB/s)(5120KiB/1796msec); 0 zone resets clat (msec): min=124, max=244, avg=175.69, stdev=46.85 lat (msec): min=124, max=245, avg=175.73, stdev=46.86 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 125], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 167], 60.00th=[ 167], | 70.00th=[ 197], 80.00th=[ 197], 90.00th=[ 245], 95.00th=[ 245], | 99.00th=[ 245], 99.50th=[ 245], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 1729, max= 3976, per=28.96%, avg=2530.00, stdev=1254.70, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=8.33% lat (msec) : 100=8.33%, 250=83.33% cpu : usr=0.00%, sys=68.41%, ctx=807, 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=196316: Tue Aug 18 10:30:37 2026 read: IOPS=0, BW=624KiB/s (639kB/s)(2048KiB/3282msec) clat (usec): min=487, max=89203, avg=44845.54, stdev=62731.82 lat (usec): min=488, max=89205, avg=44846.72, stdev=62732.29 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[ 490], | 30.00th=[ 490], 40.00th=[ 490], 50.00th=[ 490], 60.00th=[89654], | 70.00th=[89654], 80.00th=[89654], 90.00th=[89654], 95.00th=[89654], | 99.00th=[89654], 99.50th=[89654], 99.90th=[89654], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 1726, max= 1988, per=29.76%, avg=1857.00, stdev=185.26, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3120KiB/s (3195kB/s)(10.0MiB/3282msec); 0 zone resets clat (msec): min=104, max=614, avg=318.24, stdev=180.21 lat (msec): min=104, max=614, avg=318.30, stdev=180.21 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 138], | 30.00th=[ 174], 40.00th=[ 176], 50.00th=[ 275], 60.00th=[ 338], | 70.00th=[ 376], 80.00th=[ 401], 90.00th=[ 584], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 3771, max= 6144, per=51.13%, avg=4466.75, stdev=1122.33, samples=4 iops : min= 3, max= 6, avg= 3.75, stdev= 1.50, samples=4 lat (usec) : 500=8.33% lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=42.94%, ctx=386, 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=196317: Tue Aug 18 10:30:37 2026 read: IOPS=1, BW=2010KiB/s (2058kB/s)(6144KiB/3057msec) clat (usec): min=477, max=840337, avg=222849.66, stdev=306738.55 lat (usec): min=478, max=840337, avg=222850.28, stdev=306738.41 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[104334], | 30.00th=[104334], 40.00th=[120062], 50.00th=[120062], 60.00th=[133694], | 70.00th=[137364], 80.00th=[137364], 90.00th=[843056], 95.00th=[843056], | 99.00th=[843056], 99.50th=[843056], 99.90th=[843056], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 1885, max= 3976, per=42.25%, avg=2636.33, stdev=1163.04, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=2010KiB/s (2058kB/s)(6144KiB/3057msec); 0 zone resets clat (msec): min=128, max=443, avg=282.56, stdev=115.14 lat (msec): min=128, max=443, avg=282.61, stdev=115.16 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 188], | 30.00th=[ 188], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 1721, max= 3976, per=36.13%, avg=3156.00, stdev=1246.97, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (usec) : 500=8.33% lat (msec) : 250=50.00%, 500=33.33%, 1000=8.33% cpu : usr=0.03%, sys=38.87%, ctx=962, 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=196318: Tue Aug 18 10:30:37 2026 read: IOPS=1, BW=1863KiB/s (1908kB/s)(5120KiB/2748msec) clat (usec): min=353, max=170411, avg=119754.40, stdev=68979.10 lat (usec): min=354, max=170412, avg=119755.25, stdev=68979.04 clat percentiles (usec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[128451], 40.00th=[128451], 50.00th=[135267], 60.00th=[135267], | 70.00th=[162530], 80.00th=[162530], 90.00th=[170918], 95.00th=[170918], | 99.00th=[170918], 99.50th=[170918], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 1988, max= 6144, per=65.16%, avg=4066.00, stdev=2938.74, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=2, BW=2608KiB/s (2671kB/s)(7168KiB/2748msec); 0 zone resets clat (msec): min=174, max=462, avg=304.99, stdev=99.95 lat (msec): min=174, max=462, avg=305.05, stdev=99.96 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 218], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 296], 60.00th=[ 330], | 70.00th=[ 330], 80.00th=[ 393], 90.00th=[ 464], 95.00th=[ 464], | 99.00th=[ 464], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 1768, max= 3976, per=31.02%, avg=2710.20, stdev=1069.51, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (usec) : 500=8.33% lat (msec) : 250=50.00%, 500=41.67% cpu : usr=0.04%, sys=48.60%, ctx=561, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6240KiB/s (6390kB/s), 624KiB/s-3991KiB/s (639kB/s-4087kB/s), io=20.0MiB (20.0MB), run=1796-3282msec WRITE: bw=8736KiB/s (8946kB/s), 2010KiB/s-3120KiB/s (2058kB/s-3195kB/s), io=28.0MiB (29.4MB), run=1796-3282msec rand-rw: (groupid=0, jobs=1): err= 0: pid=196320: Tue Aug 18 10:30:37 2026 read: IOPS=2, BW=2637KiB/s (2701kB/s)(7168KiB/2718msec) clat (msec): min=65, max=515, avg=207.33, stdev=168.16 lat (msec): min=65, max=515, avg=207.33, stdev=168.16 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 92], | 30.00th=[ 103], 40.00th=[ 103], 50.00th=[ 124], 60.00th=[ 194], | 70.00th=[ 194], 80.00th=[ 359], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 1838, max= 4096, per=50.03%, avg=2999.00, stdev=1227.67, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 write: IOPS=1, BW=1884KiB/s (1929kB/s)(5120KiB/2718msec); 0 zone resets clat (msec): min=98, max=447, avg=236.63, stdev=163.39 lat (msec): min=98, max=447, avg=236.68, stdev=163.38 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 99], | 30.00th=[ 115], 40.00th=[ 115], 50.00th=[ 146], 60.00th=[ 146], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 2011, max= 4007, per=32.00%, avg=2685.67, stdev=1144.39, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=25.00%, 250=41.67%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=20.68%, ctx=157, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=196321: Tue Aug 18 10:30:37 2026 read: IOPS=0, BW=601KiB/s (615kB/s)(2048KiB/3409msec) clat (msec): min=78, max=378, avg=228.06, stdev=212.16 lat (msec): min=78, max=378, avg=228.06, stdev=212.16 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 79], | 30.00th=[ 79], 40.00th=[ 79], 50.00th=[ 79], 60.00th=[ 380], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 380], 95.00th=[ 380], | 99.00th=[ 380], 99.50th=[ 380], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 1848, max= 2039, per=32.42%, avg=1943.50, stdev=135.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=3004KiB/s (3076kB/s)(10.0MiB/3409msec); 0 zone resets clat (msec): min=57, max=582, avg=278.16, stdev=213.64 lat (msec): min=57, max=582, avg=278.22, stdev=213.65 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 66], | 30.00th=[ 71], 40.00th=[ 78], 50.00th=[ 178], 60.00th=[ 338], | 70.00th=[ 372], 80.00th=[ 518], 90.00th=[ 523], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 2039, max= 4023, per=36.09%, avg=3029.25, stdev=1138.27, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (msec) : 100=41.67%, 250=8.33%, 500=25.00%, 750=25.00% cpu : usr=0.06%, sys=19.28%, ctx=345, 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=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=196322: Tue Aug 18 10:30:37 2026 read: IOPS=1, BW=1803KiB/s (1846kB/s)(6144KiB/3408msec) clat (msec): min=44, max=328, avg=110.25, stdev=111.31 lat (msec): min=44, max=328, avg=110.25, stdev=111.31 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 45], 10.00th=[ 45], 20.00th=[ 50], | 30.00th=[ 50], 40.00th=[ 54], 50.00th=[ 54], 60.00th=[ 59], | 70.00th=[ 127], 80.00th=[ 127], 90.00th=[ 330], 95.00th=[ 330], | 99.00th=[ 330], 99.50th=[ 330], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 2003, max= 4096, per=45.25%, avg=2712.67, stdev=1198.14, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1803KiB/s (1846kB/s)(6144KiB/3408msec); 0 zone resets clat (msec): min=62, max=873, avg=425.20, stdev=321.37 lat (msec): min=62, max=873, avg=425.26, stdev=321.38 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 118], | 30.00th=[ 118], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 426], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 2003, max= 4096, per=32.36%, avg=2715.67, stdev=1195.62, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 lat (msec) : 50=16.67%, 100=25.00%, 250=16.67%, 500=25.00%, 750=8.33% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=10.13%, ctx=81, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=196323: Tue Aug 18 10:30:37 2026 read: IOPS=1, BW=1499KiB/s (1535kB/s)(5120KiB/3416msec) clat (msec): min=21, max=849, avg=283.50, stdev=339.20 lat (msec): min=21, max=849, avg=283.50, stdev=339.20 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 22], 10.00th=[ 22], 20.00th=[ 22], | 30.00th=[ 67], 40.00th=[ 67], 50.00th=[ 138], 60.00th=[ 138], | 70.00th=[ 342], 80.00th=[ 342], 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= 2048, max= 4007, per=50.50%, avg=3027.50, stdev=1385.22, samples=2 iops : min= 2, max= 3, avg= 2.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2098KiB/s (2149kB/s)(7168KiB/3416msec); 0 zone resets clat (msec): min=52, max=986, avg=265.45, stdev=347.42 lat (msec): min=52, max=986, avg=265.51, stdev=347.44 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 57], | 30.00th=[ 62], 40.00th=[ 62], 50.00th=[ 65], 60.00th=[ 205], | 70.00th=[ 205], 80.00th=[ 435], 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= 2048, max= 6011, per=48.01%, avg=4029.50, stdev=2802.26, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 lat (msec) : 50=8.33%, 100=41.67%, 250=16.67%, 500=16.67%, 1000=16.67% cpu : usr=0.03%, sys=17.10%, ctx=115, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5995KiB/s (6139kB/s), 601KiB/s-2637KiB/s (615kB/s-2701kB/s), io=20.0MiB (20.0MB), run=2718-3416msec WRITE: bw=8393KiB/s (8595kB/s), 1803KiB/s-3004KiB/s (1846kB/s-3076kB/s), io=28.0MiB (29.4MB), run=2718-3416msec 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=196329: Tue Aug 18 10:30:45 2026 read: IOPS=1, BW=6737KiB/s (6899kB/s)(12.0MiB/1824msec) clat (msec): min=416, max=715, avg=592.51, stdev=156.41 lat (msec): min=416, max=715, avg=592.51, stdev=156.41 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 8047, max= 8159, per=98.33%, avg=8103.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=15.36%, ctx=50, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=196330: Tue Aug 18 10:30:45 2026 read: IOPS=0, BW=2060KiB/s (2110kB/s)(4096KiB/1988msec) clat (nsec): min=343932k, max=343932k, avg=343931525.00, stdev= 0.00 lat (nsec): min=343933k, max=343933k, avg=343933250.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7249, max= 7249, per=87.96%, avg=7249.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4121KiB/s (4220kB/s)(8192KiB/1988msec); 0 zone resets clat (msec): min=495, max=1118, avg=806.83, stdev=440.25 lat (msec): min=495, max=1118, avg=807.08, stdev=440.24 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 1116], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8159, max= 8159, per=49.50%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=13.49%, ctx=67, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=196331: Tue Aug 18 10:30:45 2026 write: IOPS=2, BW=11.7MiB/s (12.3MB/s)(12.0MiB/1025msec); 0 zone resets clat (msec): min=135, max=717, avg=338.77, stdev=328.04 lat (msec): min=135, max=717, avg=339.01, stdev=328.09 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 163], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min=14524, max=14524, per=88.12%, avg=14524.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 750=33.33% cpu : usr=0.00%, sys=23.63%, ctx=78, 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=196332: Tue Aug 18 10:30:45 2026 write: IOPS=2, BW=8399KiB/s (8601kB/s)(12.0MiB/1463msec); 0 zone resets clat (msec): min=163, max=643, avg=474.34, stdev=269.15 lat (msec): min=164, max=643, avg=474.62, stdev=269.15 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7353, max= 8047, per=46.72%, avg=7700.00, stdev=490.73, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=66.67% cpu : usr=0.07%, sys=19.63%, ctx=69, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=8241KiB/s (8439kB/s), 2060KiB/s-6737KiB/s (2110kB/s-6899kB/s), io=16.0MiB (16.8MB), run=1824-1988msec WRITE: bw=16.1MiB/s (16.9MB/s), 4121KiB/s-11.7MiB/s (4220kB/s-12.3MB/s), io=32.0MiB (33.6MB), run=1025-1988msec rand-rw: (groupid=0, jobs=1): err= 0: pid=196334: Tue Aug 18 10:30:45 2026 read: IOPS=2, BW=9359KiB/s (9583kB/s)(12.0MiB/1313msec) clat (msec): min=405, max=473, avg=437.36, stdev=33.90 lat (msec): min=405, max=473, avg=437.36, stdev=33.90 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 5885, max= 8192, per=74.75%, avg=7038.50, stdev=1631.30, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=64.71%, ctx=2888, 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=196335: Tue Aug 18 10:30:45 2026 read: IOPS=0, BW=2354KiB/s (2411kB/s)(4096KiB/1740msec) clat (nsec): min=387274k, max=387274k, avg=387274475.00, stdev= 0.00 lat (nsec): min=387275k, max=387275k, avg=387275117.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 6050, max= 6050, per=64.25%, avg=6050.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4708KiB/s (4821kB/s)(8192KiB/1740msec); 0 zone resets clat (msec): min=352, max=998, avg=675.54, stdev=457.32 lat (msec): min=352, max=999, avg=675.74, stdev=457.19 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 1003], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8031, max= 8031, per=42.65%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=15.76%, ctx=1050, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=196336: Tue Aug 18 10:30:45 2026 write: IOPS=1, BW=7362KiB/s (7539kB/s)(12.0MiB/1669msec); 0 zone resets clat (msec): min=139, max=937, avg=555.49, stdev=400.00 lat (msec): min=140, max=937, avg=555.69, stdev=399.91 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 8192, max= 8192, per=43.50%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=16.85%, ctx=42, 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=196337: Tue Aug 18 10:30:45 2026 write: IOPS=1, BW=7772KiB/s (7959kB/s)(12.0MiB/1581msec); 0 zone resets clat (msec): min=212, max=1027, avg=526.43, stdev=438.77 lat (msec): min=212, max=1028, avg=526.64, stdev=438.80 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 1028], 80.00th=[ 1028], 90.00th=[ 1028], 95.00th=[ 1028], | 99.00th=[ 1028], 99.50th=[ 1028], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 5626, max= 5626, per=29.87%, avg=5626.00, 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=19.56%, ctx=128, 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=9416KiB/s (9642kB/s), 2354KiB/s-9359KiB/s (2411kB/s-9583kB/s), io=16.0MiB (16.8MB), run=1313-1740msec WRITE: bw=18.4MiB/s (19.3MB/s), 4708KiB/s-7772KiB/s (4821kB/s-7959kB/s), io=32.0MiB (33.6MB), run=1581-1740msec