== sanity test 398b: DIO and buffer IO race ============== 18:37:36 (1775169456) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.68255 s, 18.8 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=184572: Thu Apr 2 18:38:40 2026 read: IOPS=27, BW=109KiB/s (112kB/s)(5992KiB/54859msec) clat (usec): min=32, max=97685, avg=19580.53, stdev=10525.59 lat (usec): min=32, max=97686, avg=19581.36, stdev=10525.61 clat percentiles (usec): | 1.00th=[ 110], 5.00th=[ 7439], 10.00th=[ 8848], 20.00th=[10945], | 30.00th=[13304], 40.00th=[15401], 50.00th=[17957], 60.00th=[20317], | 70.00th=[22938], 80.00th=[26870], 90.00th=[32900], 95.00th=[38011], | 99.00th=[55837], 99.50th=[61604], 99.90th=[80217], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 24, max= 200, per=25.24%, avg=109.05, stdev=32.67, samples=109 iops : min= 6, max= 50, avg=26.91, stdev= 8.17, samples=109 write: IOPS=28, BW=115KiB/s (118kB/s)(6296KiB/54859msec); 0 zone resets clat (usec): min=838, max=581057, avg=16087.64, stdev=18348.36 lat (usec): min=839, max=581058, avg=16088.59, stdev=18348.43 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 2671], 10.00th=[ 3195], 20.00th=[ 5080], | 30.00th=[ 8094], 40.00th=[ 10552], 50.00th=[ 13173], 60.00th=[ 16057], | 70.00th=[ 20055], 80.00th=[ 24511], 90.00th=[ 32113], 95.00th=[ 39060], | 99.00th=[ 52167], 99.50th=[ 58459], 99.90th=[ 71828], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 39, max= 199, per=25.33%, avg=114.51, stdev=34.72, samples=109 iops : min= 9, max= 49, avg=28.28, stdev= 8.79, samples=109 lat (usec) : 50=0.07%, 100=0.29%, 250=0.59%, 500=0.03%, 1000=0.03% lat (msec) : 2=1.24%, 4=6.15%, 10=17.97%, 20=38.35%, 50=33.79% lat (msec) : 100=1.46%, 750=0.03% cpu : usr=0.11%, sys=26.12%, ctx=9716, 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=184573: Thu Apr 2 18:38:40 2026 read: IOPS=27, BW=108KiB/s (111kB/s)(5940KiB/54932msec) clat (usec): min=71, max=583459, avg=20156.63, stdev=18119.57 lat (usec): min=71, max=583459, avg=20160.50, stdev=18123.38 clat percentiles (usec): | 1.00th=[ 147], 5.00th=[ 7635], 10.00th=[ 9241], 20.00th=[ 11207], | 30.00th=[ 13435], 40.00th=[ 15533], 50.00th=[ 17957], 60.00th=[ 20055], | 70.00th=[ 22676], 80.00th=[ 26870], 90.00th=[ 33162], 95.00th=[ 40109], | 99.00th=[ 54264], 99.50th=[ 63177], 99.90th=[ 87557], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 32, max= 168, per=25.01%, avg=108.05, stdev=29.59, samples=109 iops : min= 8, max= 42, avg=26.66, stdev= 7.46, samples=109 write: IOPS=28, BW=116KiB/s (118kB/s)(6348KiB/54932msec); 0 zone resets clat (usec): min=842, max=77698, avg=15614.50, stdev=11372.78 lat (usec): min=843, max=77699, avg=15615.69, stdev=11373.18 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 2638], 10.00th=[ 3228], 20.00th=[ 5145], | 30.00th=[ 8029], 40.00th=[10683], 50.00th=[13173], 60.00th=[16057], | 70.00th=[19530], 80.00th=[23987], 90.00th=[31589], 95.00th=[37487], | 99.00th=[50070], 99.50th=[56886], 99.90th=[72877], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 40, max= 207, per=25.45%, avg=115.04, stdev=34.09, samples=109 iops : min= 10, max= 51, avg=28.40, stdev= 8.51, samples=109 lat (usec) : 100=0.16%, 250=0.65%, 500=0.10%, 1000=0.07% lat (msec) : 2=0.91%, 4=6.28%, 10=18.10%, 20=39.29%, 50=32.94% lat (msec) : 100=1.46%, 750=0.03% cpu : usr=0.11%, sys=26.35%, ctx=9551, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184574: Thu Apr 2 18:38:40 2026 read: IOPS=27, BW=109KiB/s (111kB/s)(6028KiB/55512msec) clat (usec): min=47, max=574989, avg=19788.41, stdev=17600.86 lat (usec): min=48, max=574990, avg=19789.19, stdev=17600.90 clat percentiles (usec): | 1.00th=[ 111], 5.00th=[ 7701], 10.00th=[ 8979], 20.00th=[ 11207], | 30.00th=[ 13173], 40.00th=[ 15139], 50.00th=[ 17433], 60.00th=[ 19792], | 70.00th=[ 22676], 80.00th=[ 26608], 90.00th=[ 33162], 95.00th=[ 39584], | 99.00th=[ 50070], 99.50th=[ 60031], 99.90th=[ 73925], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 32, max= 192, per=25.03%, avg=108.15, stdev=31.91, samples=110 iops : min= 8, max= 48, avg=26.68, stdev= 8.04, samples=110 write: IOPS=28, BW=113KiB/s (115kB/s)(6260KiB/55512msec); 0 zone resets clat (usec): min=819, max=84552, avg=16280.39, stdev=12233.83 lat (usec): min=821, max=84553, avg=16281.36, stdev=12233.93 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 2737], 10.00th=[ 3261], 20.00th=[ 5211], | 30.00th=[ 8356], 40.00th=[11076], 50.00th=[13698], 60.00th=[16450], | 70.00th=[20055], 80.00th=[25035], 90.00th=[33162], 95.00th=[40109], | 99.00th=[55313], 99.50th=[60031], 99.90th=[78119], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 23, max= 223, per=24.80%, avg=112.11, stdev=35.12, samples=110 iops : min= 5, max= 55, avg=27.68, stdev= 8.81, samples=110 lat (usec) : 50=0.03%, 100=0.33%, 250=0.62%, 1000=0.20% lat (msec) : 2=0.62%, 4=6.35%, 10=17.25%, 20=39.81%, 50=33.20% lat (msec) : 100=1.56%, 750=0.03% cpu : usr=0.12%, sys=25.99%, ctx=9658, 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=184575: Thu Apr 2 18:38:40 2026 read: IOPS=27, BW=112KiB/s (114kB/s)(6052KiB/54172msec) clat (usec): min=63, max=94542, avg=19226.73, stdev=9733.74 lat (usec): min=63, max=94543, avg=19227.54, stdev=9733.77 clat percentiles (usec): | 1.00th=[ 122], 5.00th=[ 7111], 10.00th=[ 9110], 20.00th=[11207], | 30.00th=[13435], 40.00th=[15401], 50.00th=[17695], 60.00th=[20055], | 70.00th=[22938], 80.00th=[26346], 90.00th=[31589], 95.00th=[36963], | 99.00th=[49546], 99.50th=[52167], 99.90th=[73925], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 40, max= 192, per=25.72%, avg=111.10, stdev=31.64, samples=107 iops : min= 10, max= 48, avg=27.43, stdev= 7.96, samples=107 write: IOPS=28, BW=115KiB/s (118kB/s)(6236KiB/54172msec); 0 zone resets clat (usec): min=772, max=551551, avg=15952.99, stdev=17821.06 lat (usec): min=772, max=551551, avg=15953.91, stdev=17821.08 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 2573], 10.00th=[ 2999], 20.00th=[ 4817], | 30.00th=[ 7635], 40.00th=[ 10683], 50.00th=[ 13173], 60.00th=[ 16057], | 70.00th=[ 19792], 80.00th=[ 24511], 90.00th=[ 32113], 95.00th=[ 36963], | 99.00th=[ 50594], 99.50th=[ 54264], 99.90th=[ 99091], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 55, max= 272, per=25.38%, avg=114.73, stdev=32.11, samples=107 iops : min= 13, max= 68, avg=28.35, stdev= 8.10, samples=107 lat (usec) : 100=0.29%, 250=0.72%, 500=0.07%, 1000=0.23% lat (msec) : 2=0.98%, 4=6.87%, 10=17.02%, 20=39.00%, 50=33.79% lat (msec) : 100=1.01%, 750=0.03% cpu : usr=0.13%, sys=26.17%, ctx=9759, 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=433KiB/s (443kB/s), 108KiB/s-112KiB/s (111kB/s-114kB/s), io=23.4MiB (24.6MB), run=54172-55512msec WRITE: bw=453KiB/s (464kB/s), 113KiB/s-116KiB/s (115kB/s-118kB/s), io=24.6MiB (25.7MB), run=54172-55512msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184577: Thu Apr 2 18:38:47 2026 read: IOPS=24, BW=97.5KiB/s (99.9kB/s)(5992KiB/61439msec) clat (msec): min=2, max=575, avg=18.15, stdev=20.13 lat (msec): min=2, max=575, avg=18.15, stdev=20.13 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 11], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 22], 80.00th=[ 28], 90.00th=[ 40], 95.00th=[ 47], | 99.00th=[ 65], 99.50th=[ 72], 99.90th=[ 107], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 16, max= 408, per=24.95%, avg=97.30, stdev=70.14, samples=121 iops : min= 4, max= 102, avg=23.98, stdev=17.63, samples=121 write: IOPS=25, BW=102KiB/s (105kB/s)(6296KiB/61439msec); 0 zone resets clat (msec): min=4, max=106, avg=21.73, stdev=15.10 lat (msec): min=4, max=106, avg=21.73, stdev=15.10 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 11], 40.00th=[ 15], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 42], 95.00th=[ 50], | 99.00th=[ 74], 99.50th=[ 84], 99.90th=[ 107], 99.95th=[ 108], | 99.99th=[ 108] bw ( KiB/s): min= 31, max= 376, per=24.87%, avg=101.74, stdev=71.24, samples=121 iops : min= 7, max= 94, avg=25.08, stdev=17.90, samples=121 lat (msec) : 4=1.46%, 10=30.86%, 20=28.65%, 50=34.83%, 100=4.04% lat (msec) : 250=0.13%, 750=0.03% cpu : usr=0.09%, sys=14.02%, ctx=6267, 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=184578: Thu Apr 2 18:38:47 2026 read: IOPS=24, BW=96.7KiB/s (99.0kB/s)(5940KiB/61430msec) clat (msec): min=2, max=587, avg=17.66, stdev=19.95 lat (msec): min=2, max=587, avg=17.66, stdev=19.95 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 8], 40.00th=[ 11], 50.00th=[ 14], 60.00th=[ 17], | 70.00th=[ 20], 80.00th=[ 27], 90.00th=[ 37], 95.00th=[ 46], | 99.00th=[ 62], 99.50th=[ 71], 99.90th=[ 88], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 23, max= 440, per=24.76%, avg=96.57, stdev=72.72, samples=121 iops : min= 5, max= 110, avg=23.79, stdev=18.28, samples=121 write: IOPS=25, BW=103KiB/s (106kB/s)(6348KiB/61430msec); 0 zone resets clat (msec): min=4, max=117, avg=22.15, stdev=15.65 lat (msec): min=4, max=117, avg=22.15, stdev=15.65 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 11], 40.00th=[ 15], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 43], 95.00th=[ 53], | 99.00th=[ 74], 99.50th=[ 86], 99.90th=[ 107], 99.95th=[ 117], | 99.99th=[ 117] bw ( KiB/s): min= 47, max= 392, per=25.13%, avg=102.79, stdev=71.12, samples=121 iops : min= 11, max= 98, avg=25.35, stdev=17.86, samples=121 lat (msec) : 4=1.60%, 10=31.41%, 20=28.84%, 50=33.59%, 100=4.46% lat (msec) : 250=0.07%, 750=0.03% cpu : usr=0.10%, sys=13.97%, ctx=6242, 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=184579: Thu Apr 2 18:38:47 2026 read: IOPS=24, BW=98.5KiB/s (101kB/s)(6028KiB/61207msec) clat (usec): min=2295, max=83204, avg=17716.99, stdev=13896.45 lat (usec): min=2295, max=83205, avg=17718.74, stdev=13898.45 clat percentiles (usec): | 1.00th=[ 3556], 5.00th=[ 4424], 10.00th=[ 4948], 20.00th=[ 6194], | 30.00th=[ 8094], 40.00th=[10683], 50.00th=[13304], 60.00th=[16319], | 70.00th=[20841], 80.00th=[27657], 90.00th=[38011], 95.00th=[45876], | 99.00th=[63701], 99.50th=[72877], 99.90th=[81265], 99.95th=[83362], | 99.99th=[83362] bw ( KiB/s): min= 24, max= 376, per=25.39%, avg=99.02, stdev=73.08, samples=121 iops : min= 6, max= 94, avg=24.40, stdev=18.35, samples=121 write: IOPS=25, BW=102KiB/s (105kB/s)(6260KiB/61207msec); 0 zone resets clat (msec): min=4, max=596, avg=22.02, stdev=20.79 lat (msec): min=4, max=596, avg=22.02, stdev=20.79 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 15], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 27], 80.00th=[ 33], 90.00th=[ 43], 95.00th=[ 52], | 99.00th=[ 70], 99.50th=[ 81], 99.90th=[ 107], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 23, max= 392, per=25.15%, avg=102.86, stdev=69.46, samples=121 iops : min= 5, max= 98, avg=25.36, stdev=17.47, samples=121 lat (msec) : 4=1.24%, 10=31.18%, 20=29.30%, 50=33.76%, 100=4.46% lat (msec) : 250=0.03%, 750=0.03% cpu : usr=0.11%, sys=14.03%, ctx=6443, 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=184580: Thu Apr 2 18:38:47 2026 read: IOPS=24, BW=98.7KiB/s (101kB/s)(6052KiB/61324msec) clat (msec): min=2, max=117, avg=17.66, stdev=13.74 lat (msec): min=2, max=117, avg=17.66, stdev=13.74 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=[ 17], | 70.00th=[ 21], 80.00th=[ 28], 90.00th=[ 39], 95.00th=[ 47], | 99.00th=[ 62], 99.50th=[ 67], 99.90th=[ 83], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 8, max= 400, per=25.34%, avg=98.83, stdev=70.74, samples=121 iops : min= 2, max= 100, avg=24.36, stdev=17.77, samples=121 write: IOPS=25, BW=102KiB/s (104kB/s)(6236KiB/61324msec); 0 zone resets clat (msec): min=4, max=586, avg=22.16, stdev=20.67 lat (msec): min=4, max=586, avg=22.17, stdev=20.67 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 15], 50.00th=[ 19], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 43], 95.00th=[ 52], | 99.00th=[ 69], 99.50th=[ 82], 99.90th=[ 117], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 23, max= 376, per=24.89%, avg=101.80, stdev=70.78, samples=121 iops : min= 5, max= 94, avg=25.10, stdev=17.80, samples=121 lat (msec) : 4=1.46%, 10=31.18%, 20=29.23%, 50=33.92%, 100=4.04% lat (msec) : 250=0.13%, 750=0.03% cpu : usr=0.09%, sys=14.12%, ctx=6349, 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=391KiB/s (400kB/s), 96.7KiB/s-98.7KiB/s (99.0kB/s-101kB/s), io=23.4MiB (24.6MB), run=61207-61439msec WRITE: bw=409KiB/s (419kB/s), 102KiB/s-103KiB/s (104kB/s-106kB/s), io=24.6MiB (25.7MB), run=61207-61439msec 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=184606: Thu Apr 2 18:39:05 2026 read: IOPS=28, BW=451KiB/s (461kB/s)(5920KiB/13136msec) clat (usec): min=75, max=76282, avg=17887.69, stdev=9386.93 lat (usec): min=76, max=76282, avg=17891.18, stdev=9392.13 clat percentiles (usec): | 1.00th=[ 88], 5.00th=[ 6521], 10.00th=[ 8455], 20.00th=[10814], | 30.00th=[12387], 40.00th=[14746], 50.00th=[16188], 60.00th=[18220], | 70.00th=[21365], 80.00th=[24511], 90.00th=[30278], 95.00th=[34341], | 99.00th=[39584], 99.50th=[58983], 99.90th=[76022], 99.95th=[76022], | 99.99th=[76022] bw ( KiB/s): min= 189, max= 702, per=24.65%, avg=449.31, stdev=139.85, samples=26 iops : min= 11, max= 43, avg=27.54, stdev= 8.79, samples=26 write: IOPS=30, BW=485KiB/s (496kB/s)(6368KiB/13136msec); 0 zone resets clat (usec): min=2493, max=64177, avg=16327.61, stdev=11445.52 lat (usec): min=2495, max=64179, avg=16328.69, stdev=11445.61 clat percentiles (usec): | 1.00th=[ 2900], 5.00th=[ 3916], 10.00th=[ 4359], 20.00th=[ 6128], | 30.00th=[ 8586], 40.00th=[11076], 50.00th=[13566], 60.00th=[17171], | 70.00th=[20055], 80.00th=[24249], 90.00th=[32113], 95.00th=[38536], | 99.00th=[55313], 99.50th=[63177], 99.90th=[64226], 99.95th=[64226], | 99.99th=[64226] bw ( KiB/s): min= 288, max= 670, per=25.27%, avg=484.65, stdev=121.70, samples=26 iops : min= 18, max= 41, avg=29.77, stdev= 7.63, samples=26 lat (usec) : 100=1.30%, 250=0.65% lat (msec) : 4=3.26%, 10=20.83%, 20=41.80%, 50=30.86%, 100=1.30% cpu : usr=0.10%, sys=27.16%, ctx=2659, 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=184608: Thu Apr 2 18:39:05 2026 read: IOPS=27, BW=447KiB/s (458kB/s)(5744KiB/12849msec) clat (usec): min=69, max=68093, avg=18170.53, stdev=10278.83 lat (usec): min=69, max=68095, avg=18171.09, stdev=10278.88 clat percentiles (usec): | 1.00th=[ 86], 5.00th=[ 180], 10.00th=[ 8455], 20.00th=[11469], | 30.00th=[12649], 40.00th=[14615], 50.00th=[16319], 60.00th=[18220], | 70.00th=[20579], 80.00th=[24511], 90.00th=[30540], 95.00th=[39584], | 99.00th=[53216], 99.50th=[67634], 99.90th=[67634], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 157, max= 608, per=24.48%, avg=446.32, stdev=125.95, samples=25 iops : min= 9, max= 38, avg=27.36, stdev= 7.95, samples=25 write: IOPS=31, BW=509KiB/s (522kB/s)(6544KiB/12849msec); 0 zone resets clat (usec): min=1135, max=61845, avg=15295.73, stdev=10990.84 lat (usec): min=1136, max=61847, avg=15297.29, stdev=10991.66 clat percentiles (usec): | 1.00th=[ 2868], 5.00th=[ 3589], 10.00th=[ 4080], 20.00th=[ 5211], | 30.00th=[ 7701], 40.00th=[10028], 50.00th=[12780], 60.00th=[15270], | 70.00th=[18744], 80.00th=[23987], 90.00th=[30540], 95.00th=[39060], | 99.00th=[45351], 99.50th=[57934], 99.90th=[61604], 99.95th=[61604], | 99.99th=[61604] bw ( KiB/s): min= 223, max= 830, per=26.27%, avg=503.80, stdev=149.72, samples=25 iops : min= 13, max= 51, avg=30.96, stdev= 9.30, samples=25 lat (usec) : 100=1.04%, 250=1.30% lat (msec) : 2=0.26%, 4=4.17%, 10=20.83%, 20=42.84%, 50=28.52% lat (msec) : 100=1.04% cpu : usr=0.11%, sys=27.35%, ctx=2632, 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=184611: Thu Apr 2 18:39:05 2026 read: IOPS=31, BW=500KiB/s (512kB/s)(6256KiB/12506msec) clat (usec): min=43, max=88601, avg=17102.26, stdev=9974.40 lat (usec): min=43, max=88602, avg=17102.89, stdev=9974.43 clat percentiles (usec): | 1.00th=[ 65], 5.00th=[ 122], 10.00th=[ 7635], 20.00th=[10159], | 30.00th=[11863], 40.00th=[13698], 50.00th=[15795], 60.00th=[17957], | 70.00th=[20579], 80.00th=[23462], 90.00th=[28181], 95.00th=[33817], | 99.00th=[47449], 99.50th=[63701], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 189, max= 862, per=27.55%, avg=502.17, stdev=165.06, samples=24 iops : min= 11, max= 53, avg=30.87, stdev=10.37, samples=24 write: IOPS=30, BW=482KiB/s (494kB/s)(6032KiB/12506msec); 0 zone resets clat (usec): min=1107, max=73242, avg=15265.38, stdev=10845.32 lat (usec): min=1108, max=73242, avg=15266.47, stdev=10845.46 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 3392], 10.00th=[ 4178], 20.00th=[ 6128], | 30.00th=[ 8160], 40.00th=[10421], 50.00th=[12780], 60.00th=[15664], | 70.00th=[18220], 80.00th=[22938], 90.00th=[28705], 95.00th=[35914], | 99.00th=[53216], 99.50th=[54789], 99.90th=[72877], 99.95th=[72877], | 99.99th=[72877] bw ( KiB/s): min= 254, max= 667, per=24.60%, avg=471.83, stdev=129.85, samples=24 iops : min= 15, max= 41, avg=28.96, stdev= 8.22, samples=24 lat (usec) : 50=0.13%, 100=1.69%, 250=1.43%, 500=0.13%, 1000=0.13% lat (msec) : 2=0.65%, 4=3.52%, 10=20.44%, 20=42.32%, 50=28.52% lat (msec) : 100=1.04% cpu : usr=0.03%, sys=27.79%, ctx=2626, 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=184612: Thu Apr 2 18:39:05 2026 read: IOPS=29, BW=467KiB/s (478kB/s)(6032KiB/12922msec) clat (usec): min=33, max=70952, avg=17806.55, stdev=9770.68 lat (usec): min=34, max=70952, avg=17807.12, stdev=9770.72 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 123], 10.00th=[ 8160], 20.00th=[11338], | 30.00th=[13042], 40.00th=[14484], 50.00th=[16909], 60.00th=[19006], | 70.00th=[21103], 80.00th=[24249], 90.00th=[28181], 95.00th=[32637], | 99.00th=[54789], 99.50th=[59507], 99.90th=[70779], 99.95th=[70779], | 99.99th=[70779] bw ( KiB/s): min= 224, max= 637, per=25.33%, avg=461.80, stdev=123.98, samples=25 iops : min= 14, max= 39, avg=28.32, stdev= 7.76, samples=25 write: IOPS=30, BW=484KiB/s (496kB/s)(6256KiB/12922msec); 0 zone resets clat (usec): min=1100, max=80383, avg=15669.61, stdev=11436.42 lat (usec): min=1101, max=80384, avg=15670.84, stdev=11436.57 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 3261], 10.00th=[ 3982], 20.00th=[ 6259], | 30.00th=[ 8848], 40.00th=[10683], 50.00th=[12911], 60.00th=[15795], | 70.00th=[19268], 80.00th=[23200], 90.00th=[30278], 95.00th=[36439], | 99.00th=[55837], 99.50th=[69731], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 159, max= 731, per=25.26%, avg=484.52, stdev=146.00, samples=25 iops : min= 9, max= 45, avg=29.76, stdev= 9.16, samples=25 lat (usec) : 50=0.26%, 100=1.43%, 250=1.43%, 1000=0.13% lat (msec) : 2=0.52%, 4=5.08%, 10=17.45%, 20=43.23%, 50=28.91% lat (msec) : 100=1.56% cpu : usr=0.09%, sys=27.34%, ctx=2647, 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=1823KiB/s (1867kB/s), 447KiB/s-500KiB/s (458kB/s-512kB/s), io=23.4MiB (24.5MB), run=12506-13136msec WRITE: bw=1918KiB/s (1964kB/s), 482KiB/s-509KiB/s (494kB/s-522kB/s), io=24.6MiB (25.8MB), run=12506-13136msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184605: Thu Apr 2 18:39:07 2026 read: IOPS=24, BW=398KiB/s (408kB/s)(5920KiB/14860msec) clat (usec): min=2903, max=92523, avg=18095.58, stdev=15189.57 lat (usec): min=2904, max=92523, avg=18096.22, stdev=15189.56 clat percentiles (usec): | 1.00th=[ 3163], 5.00th=[ 4686], 10.00th=[ 5276], 20.00th=[ 6325], | 30.00th=[ 8291], 40.00th=[10421], 50.00th=[11994], 60.00th=[15270], | 70.00th=[20317], 80.00th=[28705], 90.00th=[40109], 95.00th=[46400], | 99.00th=[73925], 99.50th=[86508], 99.90th=[92799], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 160, max= 1181, per=23.75%, avg=382.59, stdev=223.39, samples=29 iops : min= 10, max= 73, avg=23.41, stdev=14.02, samples=29 write: IOPS=26, BW=429KiB/s (439kB/s)(6368KiB/14860msec); 0 zone resets clat (usec): min=4871, max=91272, avg=20409.87, stdev=13125.56 lat (usec): min=4872, max=91273, avg=20411.35, stdev=13125.60 clat percentiles (usec): | 1.00th=[ 5342], 5.00th=[ 6783], 10.00th=[ 7308], 20.00th=[ 8979], | 30.00th=[10814], 40.00th=[13435], 50.00th=[16712], 60.00th=[20841], | 70.00th=[26084], 80.00th=[31327], 90.00th=[38536], 95.00th=[45876], | 99.00th=[62129], 99.50th=[68682], 99.90th=[91751], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 127, max= 1120, per=24.26%, avg=411.14, stdev=233.21, samples=29 iops : min= 7, max= 70, avg=25.17, stdev=14.61, samples=29 lat (msec) : 4=1.43%, 10=30.73%, 20=31.51%, 50=32.68%, 100=3.65% cpu : usr=0.11%, sys=13.01%, ctx=1551, 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=184607: Thu Apr 2 18:39:07 2026 read: IOPS=24, BW=388KiB/s (397kB/s)(5744KiB/14818msec) clat (usec): min=3766, max=86383, avg=17100.35, stdev=13036.15 lat (usec): min=3767, max=86384, avg=17100.99, stdev=13036.16 clat percentiles (usec): | 1.00th=[ 4146], 5.00th=[ 4817], 10.00th=[ 5407], 20.00th=[ 6783], | 30.00th=[ 8717], 40.00th=[10814], 50.00th=[12387], 60.00th=[15533], | 70.00th=[19006], 80.00th=[26608], 90.00th=[36963], 95.00th=[44303], | 99.00th=[61604], 99.50th=[70779], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 159, max= 1085, per=23.51%, avg=378.69, stdev=203.62, samples=29 iops : min= 9, max= 67, avg=23.17, stdev=12.77, samples=29 write: IOPS=27, BW=442KiB/s (452kB/s)(6544KiB/14818msec); 0 zone resets clat (usec): min=4974, max=72021, avg=21149.39, stdev=13703.60 lat (usec): min=4976, max=72023, avg=21150.89, stdev=13703.55 clat percentiles (usec): | 1.00th=[ 5735], 5.00th=[ 7111], 10.00th=[ 7504], 20.00th=[ 8848], | 30.00th=[10945], 40.00th=[13698], 50.00th=[17171], 60.00th=[20841], | 70.00th=[26084], 80.00th=[33162], 90.00th=[40633], 95.00th=[47449], | 99.00th=[63701], 99.50th=[68682], 99.90th=[71828], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 192, max= 1344, per=25.28%, avg=428.55, stdev=259.90, samples=29 iops : min= 12, max= 84, avg=26.28, stdev=16.30, samples=29 lat (msec) : 4=0.26%, 10=29.43%, 20=34.51%, 50=32.42%, 100=3.39% cpu : usr=0.08%, sys=13.26%, ctx=1466, 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=184609: Thu Apr 2 18:39:07 2026 read: IOPS=26, BW=423KiB/s (433kB/s)(6256KiB/14801msec) clat (usec): min=3574, max=79744, avg=16734.56, stdev=12863.61 lat (usec): min=3575, max=79745, avg=16735.40, stdev=12863.61 clat percentiles (usec): | 1.00th=[ 4228], 5.00th=[ 4948], 10.00th=[ 5407], 20.00th=[ 6194], | 30.00th=[ 8356], 40.00th=[10159], 50.00th=[12387], 60.00th=[14877], | 70.00th=[19268], 80.00th=[25560], 90.00th=[35390], 95.00th=[42730], | 99.00th=[60556], 99.50th=[76022], 99.90th=[80217], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 191, max= 1469, per=25.88%, avg=416.93, stdev=274.58, samples=29 iops : min= 11, max= 91, avg=25.55, stdev=17.20, samples=29 write: IOPS=25, BW=408KiB/s (417kB/s)(6032KiB/14801msec); 0 zone resets clat (usec): min=5678, max=91571, avg=21776.21, stdev=14473.06 lat (usec): min=5680, max=91573, avg=21777.77, stdev=14473.04 clat percentiles (usec): | 1.00th=[ 5997], 5.00th=[ 6783], 10.00th=[ 7439], 20.00th=[ 9503], | 30.00th=[11207], 40.00th=[13566], 50.00th=[17433], 60.00th=[22676], | 70.00th=[27132], 80.00th=[32637], 90.00th=[41681], 95.00th=[51643], | 99.00th=[68682], 99.50th=[71828], 99.90th=[91751], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 160, max= 1024, per=23.23%, avg=393.69, stdev=220.56, samples=29 iops : min= 10, max= 64, avg=24.10, stdev=13.80, samples=29 lat (msec) : 4=0.26%, 10=30.99%, 20=31.90%, 50=33.07%, 100=3.78% cpu : usr=0.08%, sys=13.34%, ctx=1534, 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=184610: Thu Apr 2 18:39:07 2026 read: IOPS=25, BW=410KiB/s (420kB/s)(6032KiB/14702msec) clat (usec): min=3457, max=83274, avg=17056.29, stdev=12869.40 lat (usec): min=3458, max=83274, avg=17056.96, stdev=12869.42 clat percentiles (usec): | 1.00th=[ 4047], 5.00th=[ 4948], 10.00th=[ 5538], 20.00th=[ 6325], | 30.00th=[ 8455], 40.00th=[10552], 50.00th=[12256], 60.00th=[15270], | 70.00th=[19530], 80.00th=[27132], 90.00th=[34866], 95.00th=[42206], | 99.00th=[64750], 99.50th=[67634], 99.90th=[83362], 99.95th=[83362], | 99.99th=[83362] bw ( KiB/s): min= 191, max= 1213, per=25.14%, avg=404.93, stdev=250.50, samples=29 iops : min= 11, max= 75, avg=24.79, stdev=15.74, samples=29 write: IOPS=26, BW=426KiB/s (436kB/s)(6256KiB/14702msec); 0 zone resets clat (usec): min=4832, max=78806, avg=20976.46, stdev=12871.44 lat (usec): min=4833, max=78808, avg=20977.96, stdev=12871.43 clat percentiles (usec): | 1.00th=[ 6128], 5.00th=[ 6849], 10.00th=[ 7898], 20.00th=[ 9765], | 30.00th=[11207], 40.00th=[14484], 50.00th=[17957], 60.00th=[21890], | 70.00th=[26084], 80.00th=[29754], 90.00th=[38011], 95.00th=[45351], | 99.00th=[63701], 99.50th=[68682], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 160, max= 1181, per=24.85%, avg=421.28, stdev=214.62, samples=29 iops : min= 10, max= 73, avg=25.83, stdev=13.41, samples=29 lat (msec) : 4=0.39%, 10=28.65%, 20=33.98%, 50=34.24%, 100=2.73% cpu : usr=0.10%, sys=13.67%, ctx=1583, 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=1612KiB/s (1651kB/s), 388KiB/s-423KiB/s (397kB/s-433kB/s), io=23.4MiB (24.5MB), run=14702-14860msec WRITE: bw=1696KiB/s (1737kB/s), 408KiB/s-442KiB/s (417kB/s-452kB/s), io=24.6MiB (25.8MB), run=14702-14860msec 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=184621: Thu Apr 2 18:39:15 2026 read: IOPS=2, BW=2364KiB/s (2421kB/s)(7168KiB/3032msec) clat (msec): min=46, max=789, avg=228.64, stdev=293.42 lat (msec): min=46, max=789, avg=228.64, stdev=293.42 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 47], 10.00th=[ 47], 20.00th=[ 53], | 30.00th=[ 68], 40.00th=[ 68], 50.00th=[ 77], 60.00th=[ 82], | 70.00th=[ 82], 80.00th=[ 489], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1932, max= 4096, per=52.43%, avg=3374.67, stdev=1249.39, samples=3 iops : min= 1, max= 4, avg= 3.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1689KiB/s (1729kB/s)(5120KiB/3032msec); 0 zone resets clat (msec): min=173, max=445, avg=270.51, stdev=121.82 lat (msec): min=173, max=445, avg=270.58, stdev=121.82 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 199], 60.00th=[ 199], | 70.00th=[ 351], 80.00th=[ 351], 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= 2048, max= 3984, per=33.47%, avg=3016.00, stdev=1368.96, samples=2 iops : min= 2, max= 3, avg= 2.50, stdev= 0.71, samples=2 lat (msec) : 50=8.33%, 100=33.33%, 250=25.00%, 500=25.00%, 1000=8.33% cpu : usr=0.03%, sys=16.63%, ctx=166, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184622: Thu Apr 2 18:39:15 2026 read: IOPS=0, BW=644KiB/s (659kB/s)(2048KiB/3182msec) clat (msec): min=47, max=322, avg=185.02, stdev=194.02 lat (msec): min=47, max=322, avg=185.02, stdev=194.02 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 48], 10.00th=[ 48], 20.00th=[ 48], | 30.00th=[ 48], 40.00th=[ 48], 50.00th=[ 48], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 1868, max= 2048, per=30.42%, avg=1958.00, stdev=127.28, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=3, BW=3218KiB/s (3295kB/s)(10.0MiB/3182msec); 0 zone resets clat (msec): min=80, max=878, avg=277.10, stdev=240.53 lat (msec): min=80, max=878, avg=277.17, stdev=240.54 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 84], | 30.00th=[ 116], 40.00th=[ 117], 50.00th=[ 203], 60.00th=[ 224], | 70.00th=[ 321], 80.00th=[ 347], 90.00th=[ 405], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 1992, max= 6144, per=40.79%, avg=3675.20, stdev=1727.00, samples=5 iops : min= 1, max= 6, avg= 3.40, stdev= 1.95, samples=5 lat (msec) : 50=8.33%, 100=16.67%, 250=33.33%, 500=33.33%, 1000=8.33% cpu : usr=0.03%, sys=11.54%, ctx=89, 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=184623: Thu Apr 2 18:39:15 2026 read: IOPS=1, BW=1977KiB/s (2024kB/s)(6144KiB/3108msec) clat (msec): min=42, max=294, avg=150.07, stdev=98.02 lat (msec): min=42, max=294, avg=150.07, stdev=98.02 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 43], 10.00th=[ 43], 20.00th=[ 69], | 30.00th=[ 69], 40.00th=[ 93], 50.00th=[ 93], 60.00th=[ 182], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 1992, max= 4096, per=52.74%, avg=3394.67, stdev=1214.74, samples=3 iops : min= 1, max= 4, avg= 3.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1977KiB/s (2024kB/s)(6144KiB/3108msec); 0 zone resets clat (msec): min=81, max=989, avg=346.93, stdev=339.67 lat (msec): min=81, max=989, avg=347.00, stdev=339.67 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 108], | 30.00th=[ 108], 40.00th=[ 180], 50.00th=[ 180], 60.00th=[ 300], | 70.00th=[ 426], 80.00th=[ 426], 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= 1992, max= 3799, per=27.43%, avg=2471.75, stdev=885.23, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=33.33%, 500=25.00%, 1000=8.33% cpu : usr=0.00%, sys=17.51%, ctx=126, 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=184625: Thu Apr 2 18:39:15 2026 read: IOPS=2, BW=2490KiB/s (2550kB/s)(5120KiB/2056msec) clat (msec): min=52, max=104, avg=73.15, stdev=20.40 lat (msec): min=52, max=104, avg=73.16, stdev=20.40 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 53], | 30.00th=[ 62], 40.00th=[ 62], 50.00th=[ 66], 60.00th=[ 66], | 70.00th=[ 82], 80.00th=[ 82], 90.00th=[ 105], 95.00th=[ 105], | 99.00th=[ 105], 99.50th=[ 105], 99.90th=[ 105], 99.95th=[ 105], | 99.99th=[ 105] 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=3, BW=3486KiB/s (3570kB/s)(7168KiB/2056msec); 0 zone resets clat (msec): min=42, max=868, avg=239.67, stdev=293.41 lat (msec): min=42, max=868, avg=239.74, stdev=293.41 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 43], 10.00th=[ 43], 20.00th=[ 45], | 30.00th=[ 80], 40.00th=[ 80], 50.00th=[ 112], 60.00th=[ 255], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1868, max= 6144, per=39.28%, avg=3539.00, stdev=2009.28, samples=4 iops : min= 1, max= 6, avg= 3.25, stdev= 2.22, samples=4 lat (msec) : 50=16.67%, 100=41.67%, 250=16.67%, 500=16.67%, 1000=8.33% cpu : usr=0.00%, sys=13.82%, ctx=166, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6436KiB/s (6591kB/s), 644KiB/s-2490KiB/s (659kB/s-2550kB/s), io=20.0MiB (20.0MB), run=2056-3182msec WRITE: bw=9011KiB/s (9227kB/s), 1689KiB/s-3486KiB/s (1729kB/s-3570kB/s), io=28.0MiB (29.4MB), run=2056-3182msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184624: Thu Apr 2 18:39:15 2026 read: IOPS=2, BW=2468KiB/s (2528kB/s)(7168KiB/2904msec) clat (usec): min=421, max=750493, avg=209574.57, stdev=254207.01 lat (usec): min=422, max=750494, avg=209575.78, stdev=254206.87 clat percentiles (usec): | 1.00th=[ 420], 5.00th=[ 420], 10.00th=[ 420], 20.00th=[ 81265], | 30.00th=[ 82314], 40.00th=[ 82314], 50.00th=[104334], 60.00th=[164627], | 70.00th=[164627], 80.00th=[283116], 90.00th=[750781], 95.00th=[750781], | 99.00th=[750781], 99.50th=[750781], 99.90th=[750781], 99.95th=[750781], | 99.99th=[750781] bw ( KiB/s): min= 1892, max= 4096, per=47.04%, avg=3019.00, stdev=1244.28, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.73, samples=4 write: IOPS=1, BW=1763KiB/s (1805kB/s)(5120KiB/2904msec); 0 zone resets clat (msec): min=149, max=487, avg=284.04, stdev=132.80 lat (msec): min=149, max=487, avg=284.09, stdev=132.78 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 2048, max= 3984, per=29.98%, avg=2693.33, stdev=1117.75, samples=3 iops : min= 2, max= 3, avg= 2.33, stdev= 0.58, samples=3 lat (usec) : 500=8.33% lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 1000=8.33% cpu : usr=0.03%, sys=35.41%, ctx=1181, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184626: Thu Apr 2 18:39:15 2026 read: IOPS=0, BW=642KiB/s (657kB/s)(2048KiB/3191msec) clat (msec): min=101, max=127, avg=114.37, stdev=18.18 lat (msec): min=101, max=127, avg=114.37, stdev=18.18 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 102], | 30.00th=[ 102], 40.00th=[ 102], 50.00th=[ 102], 60.00th=[ 128], | 70.00th=[ 128], 80.00th=[ 128], 90.00th=[ 128], 95.00th=[ 128], | 99.00th=[ 128], 99.50th=[ 128], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] bw ( KiB/s): min= 1950, max= 1992, per=30.71%, avg=1971.00, stdev=29.70, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3209KiB/s (3286kB/s)(10.0MiB/3191msec); 0 zone resets clat (msec): min=51, max=934, avg=292.53, stdev=253.51 lat (msec): min=51, max=934, avg=292.60, stdev=253.50 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 52], 10.00th=[ 52], 20.00th=[ 94], | 30.00th=[ 148], 40.00th=[ 150], 50.00th=[ 199], 60.00th=[ 288], | 70.00th=[ 292], 80.00th=[ 351], 90.00th=[ 418], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 2048, max= 4096, per=39.58%, avg=3556.00, stdev=1006.72, samples=4 iops : min= 2, max= 4, avg= 3.25, stdev= 0.96, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=33.33%, 1000=8.33% cpu : usr=0.06%, sys=37.93%, ctx=399, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=184627: Thu Apr 2 18:39:15 2026 read: IOPS=2, BW=2287KiB/s (2341kB/s)(6144KiB/2687msec) clat (msec): min=89, max=234, avg=145.93, stdev=50.66 lat (msec): min=89, max=234, avg=145.93, stdev=50.66 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 126], 50.00th=[ 126], 60.00th=[ 142], | 70.00th=[ 169], 80.00th=[ 169], 90.00th=[ 234], 95.00th=[ 234], | 99.00th=[ 234], 99.50th=[ 234], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 1992, max= 4096, per=52.89%, avg=3394.67, stdev=1214.74, samples=3 iops : min= 1, max= 4, avg= 3.00, stdev= 1.73, samples=3 write: IOPS=2, BW=2287KiB/s (2341kB/s)(6144KiB/2687msec); 0 zone resets clat (msec): min=99, max=778, avg=292.66, stdev=245.70 lat (msec): min=99, max=778, avg=292.72, stdev=245.70 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 243], | 70.00th=[ 247], 80.00th=[ 247], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 1992, max= 4096, per=33.27%, avg=2989.00, stdev=1124.80, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 lat (msec) : 100=16.67%, 250=75.00%, 1000=8.33% cpu : usr=0.07%, sys=37.71%, ctx=602, 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=184628: Thu Apr 2 18:39:15 2026 read: IOPS=1, BW=1930KiB/s (1976kB/s)(5120KiB/2653msec) clat (usec): min=470, max=169906, avg=112196.68, stdev=67272.75 lat (usec): min=471, max=169906, avg=112197.74, stdev=67272.56 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 469], | 30.00th=[104334], 40.00th=[104334], 50.00th=[131597], 60.00th=[131597], | 70.00th=[156238], 80.00th=[156238], 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= 3984, max= 4096, per=62.95%, avg=4040.00, stdev=79.20, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2702KiB/s (2767kB/s)(7168KiB/2653msec); 0 zone resets clat (msec): min=116, max=796, avg=289.79, stdev=230.47 lat (msec): min=116, max=796, avg=289.85, stdev=230.47 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 169], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 215], 60.00th=[ 218], | 70.00th=[ 218], 80.00th=[ 305], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1965, max= 4096, per=33.65%, avg=3023.25, stdev=1175.42, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 lat (usec) : 500=8.33% lat (msec) : 250=75.00%, 500=8.33%, 1000=8.33% cpu : usr=0.00%, sys=39.52%, ctx=736, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6418KiB/s (6572kB/s), 642KiB/s-2468KiB/s (657kB/s-2528kB/s), io=20.0MiB (20.0MB), run=2653-3191msec WRITE: bw=8985KiB/s (9201kB/s), 1763KiB/s-3209KiB/s (1805kB/s-3286kB/s), io=28.0MiB (29.4MB), run=2653-3191msec 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=184638: Thu Apr 2 18:39:24 2026 read: IOPS=1, BW=7479KiB/s (7658kB/s)(12.0MiB/1643msec) clat (msec): min=218, max=842, avg=509.57, stdev=313.72 lat (msec): min=218, max=842, avg=509.57, stdev=313.72 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 8192, max= 8192, per=82.15%, 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=20.22%, ctx=68, 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=184639: Thu Apr 2 18:39:24 2026 read: IOPS=0, BW=3391KiB/s (3472kB/s)(4096KiB/1208msec) clat (nsec): min=186228k, max=186228k, avg=186228370.00, stdev= 0.00 lat (nsec): min=186230k, max=186230k, avg=186229822.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 186], 80.00th=[ 186], 90.00th=[ 186], 95.00th=[ 186], | 99.00th=[ 186], 99.50th=[ 186], 99.90th=[ 186], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 5557, max= 5557, per=55.73%, avg=5557.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=6781KiB/s (6944kB/s)(8192KiB/1208msec); 0 zone resets clat (msec): min=352, max=548, avg=450.67, stdev=138.54 lat (msec): min=353, max=548, avg=451.01, stdev=138.57 clat percentiles (msec): | 1.00th=[ 355], 5.00th=[ 355], 10.00th=[ 355], 20.00th=[ 355], | 30.00th=[ 355], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=23.20%, ctx=90, 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=184640: Thu Apr 2 18:39:24 2026 write: IOPS=1, BW=6447KiB/s (6602kB/s)(12.0MiB/1906msec); 0 zone resets clat (msec): min=129, max=1333, avg=594.06, stdev=647.46 lat (msec): min=130, max=1333, avg=595.02, stdev=646.91 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 130], | 30.00th=[ 130], 40.00th=[ 321], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8159, max= 8159, per=47.76%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.05%, sys=13.86%, ctx=61, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=184641: Thu Apr 2 18:39:24 2026 write: IOPS=1, BW=6407KiB/s (6560kB/s)(12.0MiB/1918msec); 0 zone resets clat (msec): min=342, max=1073, avg=597.03, stdev=413.35 lat (msec): min=342, max=1074, avg=597.35, stdev=413.35 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 342], 10.00th=[ 342], 20.00th=[ 342], | 30.00th=[ 342], 40.00th=[ 376], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 5527, max= 8192, per=40.15%, avg=6859.50, stdev=1884.44, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=13.41%, ctx=112, 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=9972KiB/s (10.2MB/s), 3391KiB/s-7479KiB/s (3472kB/s-7658kB/s), io=16.0MiB (16.8MB), run=1208-1643msec WRITE: bw=16.7MiB/s (17.5MB/s), 6407KiB/s-6781KiB/s (6560kB/s-6944kB/s), io=32.0MiB (33.6MB), run=1208-1918msec rand-rw: (groupid=0, jobs=1): err= 0: pid=184634: Thu Apr 2 18:39:24 2026 read: IOPS=2, BW=9095KiB/s (9314kB/s)(12.0MiB/1351msec) clat (msec): min=324, max=469, avg=402.60, stdev=73.09 lat (msec): min=324, max=469, avg=402.61, stdev=73.09 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 414], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 5634, max= 8159, per=71.31%, avg=6896.50, stdev=1785.44, 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=52.74%, ctx=2794, 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=184635: Thu Apr 2 18:39:24 2026 read: IOPS=0, BW=2418KiB/s (2476kB/s)(4096KiB/1694msec) clat (nsec): min=469647k, max=469647k, avg=469647103.00, stdev= 0.00 lat (nsec): min=469648k, max=469648k, avg=469648020.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 5673, max= 5673, per=58.66%, avg=5673.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4836KiB/s (4952kB/s)(8192KiB/1694msec); 0 zone resets clat (msec): min=463, max=622, avg=542.86, stdev=112.49 lat (msec): min=463, max=622, avg=543.10, stdev=112.59 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=21.15%, ctx=800, 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=184636: Thu Apr 2 18:39:24 2026 write: IOPS=1, BW=6098KiB/s (6245kB/s)(12.0MiB/2015msec); 0 zone resets clat (msec): min=66, max=1610, avg=621.99, stdev=858.07 lat (msec): min=66, max=1610, avg=622.24, stdev=858.03 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 67], | 30.00th=[ 67], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 190], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] lat (msec) : 100=33.33%, 250=33.33%, 2000=33.33% cpu : usr=0.05%, sys=16.78%, 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=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=184637: Thu Apr 2 18:39:24 2026 write: IOPS=1, BW=7157KiB/s (7328kB/s)(12.0MiB/1717msec); 0 zone resets clat (msec): min=183, max=1197, avg=522.11, stdev=584.89 lat (msec): min=183, max=1197, avg=522.38, stdev=584.97 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 184], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 186], | 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=11191, max=11191, per=68.82%, avg=11191.00, 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=19.23%, ctx=180, 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=9672KiB/s (9904kB/s), 2418KiB/s-9095KiB/s (2476kB/s-9314kB/s), io=16.0MiB (16.8MB), run=1351-1694msec WRITE: bw=15.9MiB/s (16.7MB/s), 4836KiB/s-7157KiB/s (4952kB/s-7328kB/s), io=32.0MiB (33.6MB), run=1694-2015msec