== sanity test 398b: DIO and buffer IO race ============== 21:08:02 (1770689282) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.5306 s, 19.9 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=181330: Mon Feb 9 21:09:05 2026 read: IOPS=27, BW=109KiB/s (111kB/s)(5992KiB/55072msec) clat (usec): min=203, max=73090, avg=19114.48, stdev=9835.95 lat (usec): min=204, max=73090, avg=19115.37, stdev=9835.80 clat percentiles (usec): | 1.00th=[ 404], 5.00th=[ 7046], 10.00th=[ 8979], 20.00th=[11338], | 30.00th=[13304], 40.00th=[15401], 50.00th=[17171], 60.00th=[19530], | 70.00th=[22676], 80.00th=[26608], 90.00th=[31851], 95.00th=[37487], | 99.00th=[50070], 99.50th=[57934], 99.90th=[67634], 99.95th=[72877], | 99.99th=[72877] bw ( KiB/s): min= 19, max= 192, per=25.01%, avg=108.54, stdev=33.97, samples=109 iops : min= 4, max= 48, avg=26.72, stdev= 8.59, samples=109 write: IOPS=28, BW=114KiB/s (117kB/s)(6296KiB/55072msec); 0 zone resets clat (usec): min=699, max=635438, avg=16667.76, stdev=19997.16 lat (usec): min=701, max=635439, avg=16668.77, stdev=19997.23 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 2573], 10.00th=[ 3163], 20.00th=[ 4948], | 30.00th=[ 8160], 40.00th=[ 10814], 50.00th=[ 13435], 60.00th=[ 16450], | 70.00th=[ 20317], 80.00th=[ 25297], 90.00th=[ 33424], 95.00th=[ 40109], | 99.00th=[ 56361], 99.50th=[ 61080], 99.90th=[115868], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 47, max= 215, per=25.40%, avg=115.30, stdev=28.45, samples=108 iops : min= 11, max= 53, avg=28.41, stdev= 7.12, samples=108 lat (usec) : 250=0.07%, 500=0.65%, 750=0.42%, 1000=0.33% lat (msec) : 2=0.98%, 4=6.54%, 10=17.12%, 20=39.23%, 50=33.17% lat (msec) : 100=1.43%, 250=0.03%, 750=0.03% cpu : usr=0.11%, sys=26.36%, ctx=9563, 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=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=181331: Mon Feb 9 21:09:05 2026 read: IOPS=26, BW=107KiB/s (110kB/s)(5940KiB/55318msec) clat (usec): min=113, max=661846, avg=20185.60, stdev=19526.04 lat (usec): min=113, max=661847, avg=20186.31, stdev=19526.07 clat percentiles (usec): | 1.00th=[ 482], 5.00th=[ 7570], 10.00th=[ 9110], 20.00th=[ 11600], | 30.00th=[ 13698], 40.00th=[ 15926], 50.00th=[ 17957], 60.00th=[ 20579], | 70.00th=[ 22938], 80.00th=[ 26870], 90.00th=[ 32637], 95.00th=[ 37487], | 99.00th=[ 54789], 99.50th=[ 62653], 99.90th=[ 95945], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 39, max= 184, per=24.93%, avg=108.20, stdev=28.41, samples=109 iops : min= 9, max= 46, avg=26.63, stdev= 7.16, samples=109 write: IOPS=28, BW=115KiB/s (118kB/s)(6348KiB/55318msec); 0 zone resets clat (usec): min=682, max=88264, avg=15820.85, stdev=12149.34 lat (usec): min=683, max=88265, avg=15821.70, stdev=12149.34 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 2409], 10.00th=[ 2868], 20.00th=[ 4555], | 30.00th=[ 7373], 40.00th=[10421], 50.00th=[13173], 60.00th=[16319], | 70.00th=[20317], 80.00th=[25035], 90.00th=[33162], 95.00th=[38011], | 99.00th=[53740], 99.50th=[58459], 99.90th=[79168], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 55, max= 247, per=25.44%, avg=115.48, stdev=38.65, samples=109 iops : min= 13, max= 61, avg=28.45, stdev= 9.77, samples=109 lat (usec) : 250=0.07%, 500=0.42%, 750=0.52%, 1000=0.36% lat (msec) : 2=1.30%, 4=7.00%, 10=16.57%, 20=37.96%, 50=34.44% lat (msec) : 100=1.33%, 750=0.03% cpu : usr=0.09%, sys=26.11%, ctx=9371, 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=181332: Mon Feb 9 21:09:05 2026 read: IOPS=27, BW=111KiB/s (114kB/s)(6028KiB/54254msec) clat (usec): min=138, max=658839, avg=19809.82, stdev=19592.83 lat (usec): min=139, max=658840, avg=19810.58, stdev=19592.86 clat percentiles (usec): | 1.00th=[ 392], 5.00th=[ 7373], 10.00th=[ 8717], 20.00th=[ 11207], | 30.00th=[ 13173], 40.00th=[ 15270], 50.00th=[ 17171], 60.00th=[ 19792], | 70.00th=[ 22676], 80.00th=[ 26608], 90.00th=[ 32375], 95.00th=[ 38536], | 99.00th=[ 54264], 99.50th=[ 67634], 99.90th=[ 92799], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 55, max= 208, per=25.85%, avg=112.18, stdev=32.14, samples=106 iops : min= 13, max= 52, avg=27.63, stdev= 8.14, samples=106 write: IOPS=28, BW=115KiB/s (118kB/s)(6260KiB/54254msec); 0 zone resets clat (usec): min=678, max=68486, avg=15456.65, stdev=11686.05 lat (usec): min=678, max=68487, avg=15458.94, stdev=11685.17 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 2507], 10.00th=[ 3064], 20.00th=[ 4686], | 30.00th=[ 7373], 40.00th=[10028], 50.00th=[13042], 60.00th=[15795], | 70.00th=[19530], 80.00th=[24249], 90.00th=[31851], 95.00th=[38011], | 99.00th=[53740], 99.50th=[56886], 99.90th=[61080], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 19, max= 208, per=25.34%, avg=115.07, stdev=36.67, samples=107 iops : min= 4, max= 52, avg=28.35, stdev= 9.23, samples=107 lat (usec) : 250=0.10%, 500=0.55%, 750=0.49%, 1000=0.39% lat (msec) : 2=0.94%, 4=6.74%, 10=18.91%, 20=37.86%, 50=32.65% lat (msec) : 100=1.33%, 750=0.03% cpu : usr=0.11%, sys=26.26%, ctx=9480, 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=181333: Mon Feb 9 21:09:05 2026 read: IOPS=27, BW=110KiB/s (112kB/s)(6052KiB/55115msec) clat (usec): min=75, max=73924, avg=19471.84, stdev=10422.08 lat (usec): min=75, max=73924, avg=19472.58, stdev=10422.13 clat percentiles (usec): | 1.00th=[ 474], 5.00th=[ 7308], 10.00th=[ 8848], 20.00th=[10945], | 30.00th=[13304], 40.00th=[15401], 50.00th=[17433], 60.00th=[19792], | 70.00th=[22938], 80.00th=[27132], 90.00th=[33162], 95.00th=[38536], | 99.00th=[55837], 99.50th=[60556], 99.90th=[65799], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 40, max= 199, per=25.47%, avg=110.55, stdev=33.31, samples=108 iops : min= 10, max= 49, avg=27.22, stdev= 8.42, samples=108 write: IOPS=28, BW=113KiB/s (116kB/s)(6236KiB/55115msec); 0 zone resets clat (usec): min=663, max=654847, avg=16324.08, stdev=20210.82 lat (usec): min=663, max=654848, avg=16325.40, stdev=20210.67 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 2442], 10.00th=[ 2966], 20.00th=[ 4621], | 30.00th=[ 7635], 40.00th=[ 10552], 50.00th=[ 13435], 60.00th=[ 16450], | 70.00th=[ 20579], 80.00th=[ 24511], 90.00th=[ 32637], 95.00th=[ 38536], | 99.00th=[ 55837], 99.50th=[ 64226], 99.90th=[ 78119], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 13, max= 208, per=24.88%, avg=112.96, stdev=35.77, samples=109 iops : min= 3, max= 52, avg=27.83, stdev= 8.99, samples=109 lat (usec) : 100=0.03%, 250=0.03%, 500=0.46%, 750=0.42%, 1000=0.49% lat (msec) : 2=1.01%, 4=6.90%, 10=17.64%, 20=37.73%, 50=33.56% lat (msec) : 100=1.69%, 750=0.03% cpu : usr=0.11%, sys=26.10%, ctx=9703, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=434KiB/s (444kB/s), 107KiB/s-111KiB/s (110kB/s-114kB/s), io=23.4MiB (24.6MB), run=54254-55318msec WRITE: bw=454KiB/s (465kB/s), 113KiB/s-115KiB/s (116kB/s-118kB/s), io=24.6MiB (25.7MB), run=54254-55318msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181335: Mon Feb 9 21:09:11 2026 read: IOPS=24, BW=98.3KiB/s (101kB/s)(5992KiB/60986msec) clat (msec): min=2, max=654, avg=17.75, stdev=21.35 lat (msec): min=2, max=654, avg=17.75, stdev=21.35 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 12], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 27], 90.00th=[ 36], 95.00th=[ 46], | 99.00th=[ 65], 99.50th=[ 72], 99.90th=[ 102], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 31, max= 408, per=25.05%, avg=98.46, stdev=67.10, samples=120 iops : min= 7, max= 102, avg=24.26, stdev=16.88, samples=120 write: IOPS=25, BW=103KiB/s (106kB/s)(6296KiB/60986msec); 0 zone resets clat (usec): min=3664, max=96873, avg=21768.60, stdev=15444.24 lat (usec): min=3664, max=96874, avg=21769.61, stdev=15444.34 clat percentiles (usec): | 1.00th=[ 4817], 5.00th=[ 5866], 10.00th=[ 6652], 20.00th=[ 8094], | 30.00th=[10683], 40.00th=[13960], 50.00th=[17695], 60.00th=[21627], | 70.00th=[26608], 80.00th=[32900], 90.00th=[43254], 95.00th=[51643], | 99.00th=[70779], 99.50th=[84411], 99.90th=[95945], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 31, max= 376, per=25.09%, avg=103.37, stdev=69.95, samples=120 iops : min= 7, max= 94, avg=25.49, stdev=17.60, samples=120 lat (msec) : 4=1.86%, 10=29.52%, 20=32.06%, 50=32.00%, 100=4.49% lat (msec) : 250=0.03%, 750=0.03% cpu : usr=0.11%, sys=12.73%, ctx=5781, 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=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=181336: Mon Feb 9 21:09:11 2026 read: IOPS=24, BW=97.6KiB/s (99.9kB/s)(5940KiB/60865msec) clat (msec): min=2, max=659, avg=17.39, stdev=21.31 lat (msec): min=2, max=659, avg=17.39, stdev=21.31 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 36], 95.00th=[ 45], | 99.00th=[ 63], 99.50th=[ 72], 99.90th=[ 94], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 23, max= 432, per=25.02%, avg=98.32, stdev=71.14, samples=120 iops : min= 5, max= 108, avg=24.23, stdev=17.91, samples=120 write: IOPS=26, BW=104KiB/s (107kB/s)(6348KiB/60865msec); 0 zone resets clat (msec): min=3, max=121, avg=22.00, stdev=15.72 lat (msec): min=3, max=121, avg=22.00, stdev=15.72 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 34], 90.00th=[ 43], 95.00th=[ 52], | 99.00th=[ 80], 99.50th=[ 88], 99.90th=[ 110], 99.95th=[ 122], | 99.99th=[ 122] bw ( KiB/s): min= 40, max= 376, per=25.48%, avg=104.99, stdev=67.21, samples=120 iops : min= 10, max= 94, avg=25.89, stdev=16.93, samples=120 lat (msec) : 4=1.76%, 10=29.82%, 20=31.87%, 50=32.00%, 100=4.36% lat (msec) : 250=0.16%, 750=0.03% cpu : usr=0.09%, sys=12.75%, ctx=5757, 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=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=181337: Mon Feb 9 21:09:11 2026 read: IOPS=24, BW=99.4KiB/s (102kB/s)(6028KiB/60656msec) clat (msec): min=2, max=101, avg=17.06, stdev=13.17 lat (msec): min=2, max=101, avg=17.06, stdev=13.17 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 6], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 11], 50.00th=[ 14], 60.00th=[ 16], | 70.00th=[ 20], 80.00th=[ 26], 90.00th=[ 36], 95.00th=[ 45], | 99.00th=[ 61], 99.50th=[ 70], 99.90th=[ 87], 99.95th=[ 102], | 99.99th=[ 102] bw ( KiB/s): min= 32, max= 368, per=25.33%, avg=99.55, stdev=68.29, samples=119 iops : min= 8, max= 92, avg=24.53, stdev=17.20, samples=119 write: IOPS=25, BW=103KiB/s (106kB/s)(6260KiB/60656msec); 0 zone resets clat (msec): min=4, max=656, avg=22.26, stdev=22.01 lat (msec): min=4, max=656, avg=22.26, stdev=22.01 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 34], 90.00th=[ 43], 95.00th=[ 53], | 99.00th=[ 68], 99.50th=[ 84], 99.90th=[ 122], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 31, max= 384, per=25.01%, avg=103.03, stdev=65.63, samples=119 iops : min= 7, max= 96, avg=25.40, stdev=16.51, samples=119 lat (msec) : 4=1.56%, 10=29.49%, 20=31.74%, 50=32.49%, 100=4.56% lat (msec) : 250=0.13%, 750=0.03% cpu : usr=0.10%, sys=12.84%, ctx=5767, 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=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=181338: Mon Feb 9 21:09:11 2026 read: IOPS=24, BW=99.3KiB/s (102kB/s)(6052KiB/60975msec) clat (usec): min=2469, max=99059, avg=17599.68, stdev=13818.94 lat (usec): min=2470, max=99060, avg=17600.41, stdev=13819.01 clat percentiles (usec): | 1.00th=[ 3294], 5.00th=[ 4359], 10.00th=[ 4948], 20.00th=[ 6587], | 30.00th=[ 8979], 40.00th=[11338], 50.00th=[13304], 60.00th=[16057], | 70.00th=[19530], 80.00th=[26608], 90.00th=[38011], 95.00th=[46400], | 99.00th=[64226], 99.50th=[74974], 99.90th=[95945], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 31, max= 384, per=25.27%, avg=99.31, stdev=65.32, samples=120 iops : min= 7, max= 96, avg=24.48, stdev=16.42, samples=120 write: IOPS=25, BW=102KiB/s (105kB/s)(6236KiB/60975msec); 0 zone resets clat (msec): min=3, max=649, avg=21.95, stdev=22.06 lat (msec): min=3, max=649, avg=21.95, stdev=22.06 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 33], 90.00th=[ 43], 95.00th=[ 51], | 99.00th=[ 73], 99.50th=[ 84], 99.90th=[ 121], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 47, max= 432, per=24.90%, avg=102.57, stdev=70.28, samples=120 iops : min= 11, max= 108, avg=25.29, stdev=17.69, samples=120 lat (msec) : 4=1.43%, 10=28.87%, 20=33.59%, 50=31.64%, 100=4.33% lat (msec) : 250=0.10%, 750=0.03% cpu : usr=0.12%, sys=12.73%, ctx=5729, 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=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=394KiB/s (403kB/s), 97.6KiB/s-99.4KiB/s (99.9kB/s-102kB/s), io=23.4MiB (24.6MB), run=60656-60986msec WRITE: bw=412KiB/s (422kB/s), 102KiB/s-104KiB/s (105kB/s-107kB/s), io=24.6MiB (25.7MB), run=60656-60986msec 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=181362: Mon Feb 9 21:09:35 2026 read: IOPS=20, BW=327KiB/s (335kB/s)(5920KiB/18101msec) clat (usec): min=161, max=93708, avg=24851.35, stdev=13956.13 lat (usec): min=162, max=93709, avg=24852.15, stdev=13956.18 clat percentiles (usec): | 1.00th=[ 433], 5.00th=[ 709], 10.00th=[10945], 20.00th=[14484], | 30.00th=[16909], 40.00th=[20579], 50.00th=[22676], 60.00th=[25822], | 70.00th=[29492], 80.00th=[34341], 90.00th=[41681], 95.00th=[50070], | 99.00th=[73925], 99.50th=[81265], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 160, max= 576, per=24.41%, avg=322.00, stdev=89.51, samples=35 iops : min= 10, max= 36, avg=19.60, stdev= 5.66, samples=35 write: IOPS=21, BW=352KiB/s (360kB/s)(6368KiB/18101msec); 0 zone resets clat (usec): min=1348, max=80262, avg=22136.55, stdev=14171.96 lat (usec): min=1351, max=80264, avg=22138.25, stdev=14172.02 clat percentiles (usec): | 1.00th=[ 3589], 5.00th=[ 5604], 10.00th=[ 7046], 20.00th=[10159], | 30.00th=[13566], 40.00th=[16319], 50.00th=[19006], 60.00th=[21627], | 70.00th=[26870], 80.00th=[32375], 90.00th=[40633], 95.00th=[51119], | 99.00th=[72877], 99.50th=[79168], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 192, max= 509, per=25.30%, avg=351.14, stdev=84.55, samples=35 iops : min= 12, max= 31, avg=21.43, stdev= 5.21, samples=35 lat (usec) : 250=0.13%, 500=1.17%, 750=1.30%, 1000=0.26% lat (msec) : 2=0.26%, 4=0.91%, 10=10.03%, 20=32.42%, 50=48.44% lat (msec) : 100=5.08% cpu : usr=0.10%, sys=28.75%, ctx=3004, 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=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=181364: Mon Feb 9 21:09:35 2026 read: IOPS=19, BW=316KiB/s (324kB/s)(5744KiB/18152msec) clat (usec): min=326, max=77212, avg=24773.73, stdev=12580.89 lat (usec): min=327, max=77213, avg=24774.57, stdev=12580.90 clat percentiles (usec): | 1.00th=[ 392], 5.00th=[ 979], 10.00th=[11469], 20.00th=[15270], | 30.00th=[17957], 40.00th=[20055], 50.00th=[22938], 60.00th=[25822], | 70.00th=[30278], 80.00th=[35390], 90.00th=[41681], 95.00th=[46924], | 99.00th=[61080], 99.50th=[64226], 99.90th=[77071], 99.95th=[77071], | 99.99th=[77071] bw ( KiB/s): min= 96, max= 479, per=23.97%, avg=316.23, stdev=95.00, samples=35 iops : min= 6, max= 29, avg=19.26, stdev= 5.94, samples=35 write: IOPS=22, BW=361KiB/s (369kB/s)(6544KiB/18152msec); 0 zone resets clat (msec): min=3, max=106, avg=22.37, stdev=15.19 lat (msec): min=3, max=106, avg=22.38, stdev=15.18 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 35], 90.00th=[ 44], 95.00th=[ 52], | 99.00th=[ 70], 99.50th=[ 71], 99.90th=[ 107], 99.95th=[ 107], | 99.99th=[ 107] bw ( KiB/s): min= 159, max= 542, per=25.57%, avg=354.89, stdev=92.62, samples=35 iops : min= 9, max= 33, avg=21.66, stdev= 5.88, samples=35 lat (usec) : 500=0.65%, 750=1.17%, 1000=0.52% lat (msec) : 4=1.30%, 10=13.02%, 20=30.34%, 50=48.44%, 100=4.43% lat (msec) : 250=0.13% cpu : usr=0.09%, sys=28.75%, ctx=3047, 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=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=181366: Mon Feb 9 21:09:35 2026 read: IOPS=21, BW=346KiB/s (354kB/s)(6256KiB/18103msec) clat (usec): min=156, max=65972, avg=24754.26, stdev=11460.60 lat (usec): min=156, max=65973, avg=24755.18, stdev=11460.66 clat percentiles (usec): | 1.00th=[ 529], 5.00th=[ 7635], 10.00th=[11731], 20.00th=[15139], | 30.00th=[18220], 40.00th=[21103], 50.00th=[23725], 60.00th=[27132], | 70.00th=[30540], 80.00th=[33424], 90.00th=[39584], 95.00th=[43779], | 99.00th=[56886], 99.50th=[58983], 99.90th=[65799], 99.95th=[65799], | 99.99th=[65799] bw ( KiB/s): min= 128, max= 637, per=26.05%, avg=343.60, stdev=98.47, samples=35 iops : min= 8, max= 39, avg=20.97, stdev= 6.14, samples=35 write: IOPS=20, BW=333KiB/s (341kB/s)(6032KiB/18103msec); 0 zone resets clat (usec): min=874, max=78758, avg=22115.82, stdev=13758.55 lat (usec): min=875, max=78759, avg=22117.48, stdev=13758.65 clat percentiles (usec): | 1.00th=[ 2638], 5.00th=[ 4621], 10.00th=[ 6521], 20.00th=[10028], | 30.00th=[13435], 40.00th=[16057], 50.00th=[18482], 60.00th=[23462], | 70.00th=[27132], 80.00th=[33817], 90.00th=[41681], 95.00th=[49021], | 99.00th=[61604], 99.50th=[66847], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 190, max= 637, per=23.49%, avg=326.06, stdev=93.95, samples=35 iops : min= 11, max= 39, avg=19.86, stdev= 5.87, samples=35 lat (usec) : 250=0.13%, 500=0.13%, 750=1.30%, 1000=0.26% lat (msec) : 2=0.26%, 4=1.04%, 10=10.55%, 20=30.34%, 50=52.99% lat (msec) : 100=2.99% cpu : usr=0.08%, sys=28.72%, ctx=3076, 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=181367: Mon Feb 9 21:09:35 2026 read: IOPS=21, BW=340KiB/s (348kB/s)(6032KiB/17737msec) clat (usec): min=213, max=99931, avg=24988.06, stdev=13851.20 lat (usec): min=213, max=99932, avg=24988.89, stdev=13851.26 clat percentiles (usec): | 1.00th=[ 383], 5.00th=[ 734], 10.00th=[ 10683], 20.00th=[ 14615], | 30.00th=[ 17433], 40.00th=[ 20317], 50.00th=[ 23200], 60.00th=[ 26870], | 70.00th=[ 30278], 80.00th=[ 33817], 90.00th=[ 42206], 95.00th=[ 49546], | 99.00th=[ 69731], 99.50th=[ 82314], 99.90th=[100140], 99.95th=[100140], | 99.99th=[100140] bw ( KiB/s): min= 221, max= 480, per=25.59%, avg=337.50, stdev=71.47, samples=34 iops : min= 13, max= 30, avg=20.59, stdev= 4.50, samples=34 write: IOPS=22, BW=353KiB/s (361kB/s)(6256KiB/17737msec); 0 zone resets clat (usec): min=1710, max=80333, avg=21209.56, stdev=14658.40 lat (usec): min=1712, max=80335, avg=21211.60, stdev=14658.48 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 4293], 10.00th=[ 5800], 20.00th=[ 7832], | 30.00th=[10945], 40.00th=[14222], 50.00th=[17433], 60.00th=[22152], | 70.00th=[26870], 80.00th=[33162], 90.00th=[41157], 95.00th=[48497], | 99.00th=[66323], 99.50th=[76022], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 96, max= 667, per=25.32%, avg=351.50, stdev=125.41, samples=34 iops : min= 6, max= 41, avg=21.47, stdev= 7.87, samples=34 lat (usec) : 250=0.13%, 500=0.91%, 750=1.56% lat (msec) : 2=0.65%, 4=1.69%, 10=13.54%, 20=27.99%, 50=49.22% lat (msec) : 100=4.30% cpu : usr=0.05%, sys=28.13%, ctx=2848, 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=1320KiB/s (1351kB/s), 316KiB/s-346KiB/s (324kB/s-354kB/s), io=23.4MiB (24.5MB), run=17737-18152msec WRITE: bw=1388KiB/s (1422kB/s), 333KiB/s-361KiB/s (341kB/s-369kB/s), io=24.6MiB (25.8MB), run=17737-18152msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181360: Mon Feb 9 21:09:36 2026 read: IOPS=18, BW=302KiB/s (309kB/s)(5920KiB/19587msec) clat (usec): min=3491, max=91785, avg=22804.51, stdev=16674.03 lat (usec): min=3492, max=91786, avg=22805.27, stdev=16674.06 clat percentiles (usec): | 1.00th=[ 4228], 5.00th=[ 5604], 10.00th=[ 6783], 20.00th=[ 9110], | 30.00th=[12256], 40.00th=[15008], 50.00th=[17433], 60.00th=[20841], | 70.00th=[25822], 80.00th=[34866], 90.00th=[48497], 95.00th=[57410], | 99.00th=[81265], 99.50th=[89654], 99.90th=[91751], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 128, max= 1024, per=24.93%, avg=302.64, stdev=177.32, samples=39 iops : min= 8, max= 64, avg=18.49, stdev=11.18, samples=39 write: IOPS=20, BW=325KiB/s (333kB/s)(6368KiB/19587msec); 0 zone resets clat (msec): min=4, max=127, avg=27.91, stdev=18.19 lat (msec): min=4, max=127, avg=27.92, stdev=18.19 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 42], 90.00th=[ 53], 95.00th=[ 63], | 99.00th=[ 90], 99.50th=[ 97], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] bw ( KiB/s): min= 159, max= 1056, per=25.42%, avg=324.85, stdev=182.91, samples=39 iops : min= 9, max= 66, avg=19.87, stdev=11.61, samples=39 lat (msec) : 4=0.26%, 10=16.41%, 20=32.68%, 50=40.89%, 100=9.64% lat (msec) : 250=0.13% cpu : usr=0.06%, sys=13.28%, ctx=1661, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181361: Mon Feb 9 21:09:36 2026 read: IOPS=18, BW=292KiB/s (299kB/s)(5744KiB/19695msec) clat (usec): min=2731, max=87488, avg=23495.89, stdev=16582.04 lat (usec): min=2732, max=87489, avg=23496.70, stdev=16582.07 clat percentiles (usec): | 1.00th=[ 3589], 5.00th=[ 5538], 10.00th=[ 7177], 20.00th=[10290], | 30.00th=[13304], 40.00th=[15795], 50.00th=[18482], 60.00th=[21103], | 70.00th=[26346], 80.00th=[34341], 90.00th=[50594], 95.00th=[61604], | 99.00th=[71828], 99.50th=[77071], 99.90th=[87557], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 63, max= 992, per=23.65%, avg=287.15, stdev=155.05, samples=39 iops : min= 3, max= 62, avg=17.51, stdev= 9.85, samples=39 write: IOPS=20, BW=332KiB/s (340kB/s)(6544KiB/19695msec); 0 zone resets clat (msec): min=3, max=113, avg=27.34, stdev=19.01 lat (msec): min=3, max=113, avg=27.34, stdev=19.01 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 41], 90.00th=[ 55], 95.00th=[ 69], | 99.00th=[ 85], 99.50th=[ 104], 99.90th=[ 114], 99.95th=[ 114], | 99.99th=[ 114] bw ( KiB/s): min= 127, max= 1088, per=25.41%, avg=324.74, stdev=195.83, samples=39 iops : min= 7, max= 68, avg=19.87, stdev=12.34, samples=39 lat (msec) : 4=0.78%, 10=16.93%, 20=31.90%, 50=39.45%, 100=10.42% lat (msec) : 250=0.52% cpu : usr=0.06%, sys=13.21%, ctx=1668, 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=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=181363: Mon Feb 9 21:09:36 2026 read: IOPS=20, BW=323KiB/s (331kB/s)(6256KiB/19351msec) clat (usec): min=3252, max=84201, avg=21548.57, stdev=15878.53 lat (usec): min=3253, max=84203, avg=21549.52, stdev=15878.58 clat percentiles (usec): | 1.00th=[ 4015], 5.00th=[ 5211], 10.00th=[ 6259], 20.00th=[10028], | 30.00th=[12125], 40.00th=[14353], 50.00th=[15926], 60.00th=[19268], | 70.00th=[23200], 80.00th=[31327], 90.00th=[46400], 95.00th=[56361], | 99.00th=[71828], 99.50th=[83362], 99.90th=[84411], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 96, max= 1184, per=26.56%, avg=322.45, stdev=209.41, samples=38 iops : min= 6, max= 74, avg=19.71, stdev=13.25, samples=38 write: IOPS=19, BW=312KiB/s (319kB/s)(6032KiB/19351msec); 0 zone resets clat (msec): min=5, max=122, avg=28.78, stdev=18.02 lat (msec): min=5, max=122, avg=28.78, stdev=18.02 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 32], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 53], 95.00th=[ 63], | 99.00th=[ 93], 99.50th=[ 108], 99.90th=[ 124], 99.95th=[ 124], | 99.99th=[ 124] bw ( KiB/s): min= 96, max= 992, per=23.98%, avg=306.47, stdev=159.04, samples=38 iops : min= 6, max= 62, avg=18.71, stdev=10.06, samples=38 lat (msec) : 4=0.39%, 10=15.23%, 20=36.33%, 50=37.76%, 100=10.03% lat (msec) : 250=0.26% cpu : usr=0.11%, sys=13.45%, ctx=1653, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181365: Mon Feb 9 21:09:36 2026 read: IOPS=19, BW=306KiB/s (313kB/s)(6032KiB/19715msec) clat (msec): min=2, max=118, avg=22.55, stdev=17.70 lat (msec): min=2, max=118, avg=22.55, stdev=17.70 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 21], | 70.00th=[ 27], 80.00th=[ 34], 90.00th=[ 49], 95.00th=[ 62], | 99.00th=[ 77], 99.50th=[ 79], 99.90th=[ 118], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 96, max= 992, per=24.39%, avg=296.15, stdev=186.35, samples=39 iops : min= 6, max= 62, avg=18.08, stdev=11.78, samples=39 write: IOPS=19, BW=317KiB/s (325kB/s)(6256KiB/19715msec); 0 zone resets clat (msec): min=3, max=107, avg=28.47, stdev=19.53 lat (msec): min=3, max=107, avg=28.47, stdev=19.53 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 53], 95.00th=[ 71], | 99.00th=[ 90], 99.50th=[ 107], 99.90th=[ 108], 99.95th=[ 108], | 99.99th=[ 108] bw ( KiB/s): min= 95, max= 960, per=24.40%, avg=311.77, stdev=168.05, samples=39 iops : min= 5, max= 60, avg=19.05, stdev=10.66, samples=39 lat (msec) : 4=1.30%, 10=18.23%, 20=32.03%, 50=37.76%, 100=10.29% lat (msec) : 250=0.39% cpu : usr=0.09%, sys=12.58%, ctx=1586, 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=1215KiB/s (1244kB/s), 292KiB/s-323KiB/s (299kB/s-331kB/s), io=23.4MiB (24.5MB), run=19351-19715msec WRITE: bw=1278KiB/s (1309kB/s), 312KiB/s-332KiB/s (319kB/s-340kB/s), io=24.6MiB (25.8MB), run=19351-19715msec 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=181377: Mon Feb 9 21:09:46 2026 read: IOPS=2, BW=2664KiB/s (2728kB/s)(7168KiB/2691msec) clat (msec): min=114, max=650, avg=211.95, stdev=194.24 lat (msec): min=114, max=650, avg=211.95, stdev=194.24 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 140], 60.00th=[ 153], | 70.00th=[ 153], 80.00th=[ 163], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1988, max= 4063, per=58.51%, avg=2945.50, stdev=1082.44, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1903KiB/s (1948kB/s)(5120KiB/2691msec); 0 zone resets clat (msec): min=91, max=477, avg=237.40, stdev=147.78 lat (msec): min=91, max=477, avg=237.46, stdev=147.79 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 92], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 247], 80.00th=[ 247], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 2031, max= 5965, per=47.50%, avg=3348.00, stdev=2266.40, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 lat (msec) : 100=8.33%, 250=75.00%, 500=8.33%, 750=8.33% cpu : usr=0.00%, sys=49.37%, ctx=774, 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=181378: Mon Feb 9 21:09:46 2026 read: IOPS=0, BW=503KiB/s (516kB/s)(2048KiB/4068msec) clat (msec): min=133, max=209, avg=171.48, stdev=54.16 lat (msec): min=133, max=209, avg=171.49, stdev=54.15 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 134], | 30.00th=[ 134], 40.00th=[ 134], 50.00th=[ 134], 60.00th=[ 211], | 70.00th=[ 211], 80.00th=[ 211], 90.00th=[ 211], 95.00th=[ 211], | 99.00th=[ 211], 99.50th=[ 211], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 1799, max= 2048, per=38.21%, avg=1923.50, stdev=176.07, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2517KiB/s (2578kB/s)(10.0MiB/4068msec); 0 zone resets clat (msec): min=84, max=842, avg=371.48, stdev=256.22 lat (msec): min=84, max=842, avg=371.56, stdev=256.22 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 103], | 30.00th=[ 126], 40.00th=[ 257], 50.00th=[ 275], 60.00th=[ 380], | 70.00th=[ 468], 80.00th=[ 472], 90.00th=[ 709], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1946, max= 8192, per=46.02%, avg=3243.40, stdev=2766.67, samples=5 iops : min= 1, max= 8, avg= 2.60, stdev= 3.05, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.02%, sys=44.53%, ctx=375, 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=181379: Mon Feb 9 21:09:46 2026 read: IOPS=1, BW=1563KiB/s (1601kB/s)(6144KiB/3930msec) clat (usec): min=828, max=264057, avg=154531.48, stdev=113545.68 lat (usec): min=829, max=264058, avg=154532.40, stdev=113545.45 clat percentiles (usec): | 1.00th=[ 832], 5.00th=[ 832], 10.00th=[ 832], 20.00th=[ 24773], | 30.00th=[ 24773], 40.00th=[189793], 50.00th=[189793], 60.00th=[198181], | 70.00th=[248513], 80.00th=[248513], 90.00th=[263193], 95.00th=[263193], | 99.00th=[263193], 99.50th=[263193], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 2031, max= 5965, per=66.51%, avg=3348.00, stdev=2266.40, samples=3 iops : min= 1, max= 5, avg= 2.67, stdev= 2.08, samples=3 write: IOPS=1, BW=1563KiB/s (1601kB/s)(6144KiB/3930msec); 0 zone resets clat (msec): min=134, max=1125, avg=485.77, stdev=384.68 lat (msec): min=134, max=1125, avg=485.84, stdev=384.67 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 338], | 70.00th=[ 785], 80.00th=[ 785], 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= 1815, max= 2048, per=28.18%, avg=1986.00, stdev=98.69, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (usec) : 1000=8.33% lat (msec) : 50=8.33%, 250=41.67%, 500=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=35.56%, ctx=486, 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=181380: Mon Feb 9 21:09:46 2026 read: IOPS=1, BW=1471KiB/s (1507kB/s)(5120KiB/3480msec) clat (usec): min=681, max=128591, avg=51504.91, stdev=69303.57 lat (usec): min=682, max=128592, avg=51505.88, stdev=69303.38 clat percentiles (usec): | 1.00th=[ 685], 5.00th=[ 685], 10.00th=[ 685], 20.00th=[ 685], | 30.00th=[ 807], 40.00th=[ 807], 50.00th=[ 1205], 60.00th=[ 1205], | 70.00th=[126354], 80.00th=[126354], 90.00th=[128451], 95.00th=[128451], | 99.00th=[128451], 99.50th=[128451], 99.90th=[128451], 99.95th=[128451], | 99.99th=[128451] bw ( KiB/s): min= 3976, max= 4087, per=80.09%, avg=4031.50, stdev=78.49, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2060KiB/s (2109kB/s)(7168KiB/3480msec); 0 zone resets clat (msec): min=238, max=754, avg=454.38, stdev=208.57 lat (msec): min=238, max=755, avg=454.45, stdev=208.58 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 262], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 726], 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= 1796, max= 2048, per=28.11%, avg=1981.20, stdev=106.19, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 2=8.33%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=41.10%, ctx=342, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5034KiB/s (5155kB/s), 503KiB/s-2664KiB/s (516kB/s-2728kB/s), io=20.0MiB (20.0MB), run=2691-4068msec WRITE: bw=7048KiB/s (7217kB/s), 1563KiB/s-2517KiB/s (1601kB/s-2578kB/s), io=28.0MiB (29.4MB), run=2691-4068msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181381: Mon Feb 9 21:09:46 2026 read: IOPS=1, BW=1923KiB/s (1969kB/s)(7168KiB/3727msec) clat (msec): min=59, max=601, avg=191.52, stdev=188.34 lat (msec): min=59, max=601, avg=191.52, stdev=188.34 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 89], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 117], 60.00th=[ 131], | 70.00th=[ 131], 80.00th=[ 228], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 2048, max= 4096, per=59.33%, avg=2943.00, stdev=1054.71, samples=4 iops : min= 2, max= 4, avg= 2.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1374KiB/s (1407kB/s)(5120KiB/3727msec); 0 zone resets clat (msec): min=322, max=633, avg=460.37, stdev=139.16 lat (msec): min=322, max=633, avg=460.44, stdev=139.18 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 2048, max= 4063, per=39.17%, avg=2719.67, stdev=1163.36, samples=3 iops : min= 2, max= 3, avg= 2.33, stdev= 0.58, samples=3 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 750=25.00% cpu : usr=0.03%, sys=16.45%, ctx=277, 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=181382: Mon Feb 9 21:09:46 2026 read: IOPS=0, BW=496KiB/s (508kB/s)(2048KiB/4129msec) clat (msec): min=52, max=140, avg=96.38, stdev=62.26 lat (msec): min=52, max=140, avg=96.38, stdev=62.26 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 53], | 30.00th=[ 53], 40.00th=[ 53], 50.00th=[ 53], 60.00th=[ 140], | 70.00th=[ 140], 80.00th=[ 140], 90.00th=[ 140], 95.00th=[ 140], | 99.00th=[ 140], 99.50th=[ 140], 99.90th=[ 140], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 1831, max= 2035, per=38.97%, avg=1933.00, stdev=144.25, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2480KiB/s (2540kB/s)(10.0MiB/4129msec); 0 zone resets clat (msec): min=52, max=980, avg=385.58, stdev=302.53 lat (msec): min=52, max=980, avg=385.66, stdev=302.52 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 71], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 296], 60.00th=[ 405], | 70.00th=[ 493], 80.00th=[ 510], 90.00th=[ 735], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 1961, max= 6144, per=43.84%, avg=3044.33, stdev=1721.93, samples=6 iops : min= 1, max= 6, avg= 2.33, stdev= 1.97, samples=6 lat (msec) : 100=25.00%, 250=25.00%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=21.58%, ctx=228, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181383: Mon Feb 9 21:09:46 2026 read: IOPS=1, BW=1831KiB/s (1875kB/s)(6144KiB/3355msec) clat (msec): min=58, max=293, avg=136.60, stdev=84.98 lat (msec): min=58, max=293, avg=136.60, stdev=84.98 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 72], | 30.00th=[ 72], 40.00th=[ 118], 50.00th=[ 118], 60.00th=[ 120], | 70.00th=[ 159], 80.00th=[ 159], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 2031, max= 4096, per=68.53%, avg=3399.33, stdev=1185.08, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1831KiB/s (1875kB/s)(6144KiB/3355msec); 0 zone resets clat (msec): min=87, max=832, avg=417.07, stdev=296.05 lat (msec): min=87, max=832, avg=417.16, stdev=296.04 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 384], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 2031, max= 3618, per=35.04%, avg=2433.00, stdev=790.03, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=25.00%, 250=41.67%, 500=16.67%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=17.08%, ctx=115, 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=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=181384: Mon Feb 9 21:09:46 2026 read: IOPS=1, BW=1271KiB/s (1302kB/s)(5120KiB/4028msec) clat (usec): min=74009, max=92998, avg=87024.16, stdev=7925.57 lat (usec): min=74010, max=92999, avg=87025.76, stdev=7925.82 clat percentiles (usec): | 1.00th=[73925], 5.00th=[73925], 10.00th=[73925], 20.00th=[73925], | 30.00th=[85459], 40.00th=[85459], 50.00th=[90702], 60.00th=[90702], | 70.00th=[92799], 80.00th=[92799], 90.00th=[92799], 95.00th=[92799], | 99.00th=[92799], 99.50th=[92799], 99.90th=[92799], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 8, max= 8, avg= 8.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1780KiB/s (1822kB/s)(7168KiB/4028msec); 0 zone resets clat (msec): min=255, max=802, avg=481.24, stdev=234.17 lat (msec): min=255, max=802, avg=481.33, stdev=234.16 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 255], 10.00th=[ 255], 20.00th=[ 279], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 359], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 751], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1835, max= 2048, per=28.59%, avg=1985.40, stdev=91.53, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 100=41.67%, 500=33.33%, 750=8.33%, 1000=16.67% cpu : usr=0.05%, sys=22.65%, ctx=200, 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=4960KiB/s (5079kB/s), 496KiB/s-1923KiB/s (508kB/s-1969kB/s), io=20.0MiB (20.0MB), run=3355-4129msec WRITE: bw=6944KiB/s (7111kB/s), 1374KiB/s-2480KiB/s (1407kB/s-2540kB/s), io=28.0MiB (29.4MB), run=3355-4129msec 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=181390: Mon Feb 9 21:09:54 2026 read: IOPS=2, BW=9737KiB/s (9971kB/s)(12.0MiB/1262msec) clat (msec): min=369, max=443, avg=408.28, stdev=37.00 lat (msec): min=369, max=443, avg=408.28, stdev=37.00 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 5885, max= 8175, per=62.95%, avg=7030.00, stdev=1619.27, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=52.46%, ctx=2720, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181392: Mon Feb 9 21:09:54 2026 read: IOPS=0, BW=2792KiB/s (2859kB/s)(4096KiB/1467msec) clat (nsec): min=444486k, max=444486k, avg=444486285.00, stdev= 0.00 lat (nsec): min=444488k, max=444488k, avg=444488401.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 5535, max= 5535, per=49.56%, avg=5535.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5584KiB/s (5718kB/s)(8192KiB/1467msec); 0 zone resets clat (msec): min=292, max=648, avg=470.87, stdev=251.75 lat (msec): min=293, max=649, avg=471.19, stdev=251.71 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 8175, max= 8175, per=46.23%, 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=0.07%, sys=25.17%, ctx=888, 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=181394: Mon Feb 9 21:09:54 2026 write: IOPS=1, BW=6631KiB/s (6791kB/s)(12.0MiB/1853msec); 0 zone resets clat (msec): min=63, max=1468, avg=609.87, stdev=752.59 lat (msec): min=64, max=1468, avg=610.18, stdev=752.60 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 64], | 30.00th=[ 64], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 296], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 8175, max= 8175, per=46.23%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 100=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.05%, sys=11.77%, ctx=54, 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=181396: Mon Feb 9 21:09:54 2026 write: IOPS=1, BW=7389KiB/s (7566kB/s)(12.0MiB/1663msec); 0 zone resets clat (msec): min=159, max=1264, avg=530.99, stdev=635.51 lat (msec): min=159, max=1265, avg=531.34, stdev=635.49 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 169], 60.00th=[ 169], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min=11237, max=11237, per=63.55%, avg=11237.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=16.49%, ctx=51, 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=10.9MiB/s (11.4MB/s), 2792KiB/s-9737KiB/s (2859kB/s-9971kB/s), io=16.0MiB (16.8MB), run=1262-1467msec WRITE: bw=17.3MiB/s (18.1MB/s), 5584KiB/s-7389KiB/s (5718kB/s-7566kB/s), io=32.0MiB (33.6MB), run=1467-1853msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181391: Mon Feb 9 21:09:54 2026 read: IOPS=2, BW=8777KiB/s (8988kB/s)(12.0MiB/1400msec) clat (msec): min=128, max=828, avg=452.54, stdev=352.97 lat (msec): min=128, max=828, avg=452.54, stdev=352.97 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 8192, max= 8192, per=76.16%, 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%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=17.94%, ctx=87, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181393: Mon Feb 9 21:09:54 2026 read: IOPS=0, BW=2689KiB/s (2754kB/s)(4096KiB/1523msec) clat (nsec): min=484891k, max=484891k, avg=484891416.00, stdev= 0.00 lat (nsec): min=484893k, max=484893k, avg=484892687.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 485], 5.00th=[ 485], 10.00th=[ 485], 20.00th=[ 485], | 30.00th=[ 485], 40.00th=[ 485], 50.00th=[ 485], 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= 6023, max= 6023, per=55.99%, avg=6023.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=5379KiB/s (5508kB/s)(8192KiB/1523msec); 0 zone resets clat (msec): min=376, max=617, avg=496.90, stdev=170.16 lat (msec): min=376, max=617, avg=497.12, stdev=170.24 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 617], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 8192, max= 8192, per=44.98%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.07%, sys=15.44%, ctx=71, 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=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=181395: Mon Feb 9 21:09:54 2026 write: IOPS=1, BW=6830KiB/s (6994kB/s)(12.0MiB/1799msec); 0 zone resets clat (msec): min=145, max=1255, avg=591.64, stdev=586.06 lat (msec): min=146, max=1255, avg=591.97, stdev=586.09 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min=16157, max=16157, per=88.71%, avg=16157.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.11%, sys=13.96%, ctx=62, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181397: Mon Feb 9 21:09:54 2026 write: IOPS=1, BW=7030KiB/s (7198kB/s)(12.0MiB/1748msec); 0 zone resets clat (msec): min=236, max=1203, avg=578.17, stdev=542.43 lat (msec): min=236, max=1203, avg=578.41, stdev=542.53 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 296], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min=12487, max=12487, per=68.56%, avg=12487.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.71%, ctx=73, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=10.5MiB/s (11.0MB/s), 2689KiB/s-8777KiB/s (2754kB/s-8988kB/s), io=16.0MiB (16.8MB), run=1400-1523msec WRITE: bw=17.8MiB/s (18.7MB/s), 5379KiB/s-7030KiB/s (5508kB/s-7198kB/s), io=32.0MiB (33.6MB), run=1523-1799msec