== sanity test 398b: DIO and buffer IO race ============== 14:41:59 (1767037319) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.63986 s, 19.1 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=185985: Mon Dec 29 14:42:57 2025 read: IOPS=30, BW=123KiB/s (126kB/s)(5992KiB/48737msec) clat (usec): min=83, max=1247.0k, avg=17686.85, stdev=32925.23 lat (usec): min=84, max=1247.0k, avg=17687.46, stdev=32925.24 clat percentiles (usec): | 1.00th=[ 351], 5.00th=[ 7242], 10.00th=[ 8455], | 20.00th=[ 10290], 30.00th=[ 11731], 40.00th=[ 13435], | 50.00th=[ 15401], 60.00th=[ 17695], 70.00th=[ 19792], | 80.00th=[ 22676], 90.00th=[ 26870], 95.00th=[ 31851], | 99.00th=[ 50070], 99.50th=[ 55837], 99.90th=[ 79168], | 99.95th=[1249903], 99.99th=[1249903] bw ( KiB/s): min= 6, max= 184, per=25.31%, avg=124.29, stdev=30.73, samples=96 iops : min= 1, max= 46, avg=30.75, stdev= 7.72, samples=96 write: IOPS=32, BW=129KiB/s (132kB/s)(6296KiB/48737msec); 0 zone resets clat (usec): min=697, max=68705, avg=13958.93, stdev=10277.45 lat (usec): min=697, max=68705, avg=13959.91, stdev=10277.41 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 2638], 10.00th=[ 3064], 20.00th=[ 4080], | 30.00th=[ 6915], 40.00th=[10028], 50.00th=[11994], 60.00th=[14091], | 70.00th=[17695], 80.00th=[21627], 90.00th=[27919], 95.00th=[33817], | 99.00th=[44827], 99.50th=[52691], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 32, max= 232, per=25.65%, avg=131.86, stdev=36.14, samples=95 iops : min= 8, max= 58, avg=32.64, stdev= 9.05, samples=95 lat (usec) : 100=0.03%, 250=0.16%, 500=0.81%, 750=0.36%, 1000=0.36% lat (msec) : 2=0.91%, 4=8.69%, 10=17.94%, 20=43.98%, 50=25.98% lat (msec) : 100=0.75%, 2000=0.03% cpu : usr=0.07%, sys=25.45%, ctx=9237, 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=185986: Mon Dec 29 14:42:57 2025 read: IOPS=30, BW=123KiB/s (126kB/s)(5940KiB/48418msec) clat (usec): min=88, max=1237.7k, avg=17919.63, stdev=32815.45 lat (usec): min=88, max=1237.7k, avg=17920.34, stdev=32815.52 clat percentiles (usec): | 1.00th=[ 396], 5.00th=[ 7308], 10.00th=[ 8848], | 20.00th=[ 10421], 30.00th=[ 11863], 40.00th=[ 13829], | 50.00th=[ 15795], 60.00th=[ 17957], 70.00th=[ 20055], | 80.00th=[ 22676], 90.00th=[ 26608], 95.00th=[ 32375], | 99.00th=[ 45351], 99.50th=[ 56361], 99.90th=[ 88605], | 99.95th=[1233126], 99.99th=[1233126] bw ( KiB/s): min= 8, max= 184, per=25.51%, avg=125.27, stdev=29.46, samples=94 iops : min= 2, max= 46, avg=30.99, stdev= 7.39, samples=94 write: IOPS=32, BW=131KiB/s (134kB/s)(6348KiB/48418msec); 0 zone resets clat (usec): min=660, max=71932, avg=13568.21, stdev=10898.96 lat (usec): min=661, max=71933, avg=13568.91, stdev=10898.97 clat percentiles (usec): | 1.00th=[ 996], 5.00th=[ 2474], 10.00th=[ 2933], 20.00th=[ 3523], | 30.00th=[ 5014], 40.00th=[ 9110], 50.00th=[11207], 60.00th=[13566], | 70.00th=[16909], 80.00th=[21627], 90.00th=[28705], 95.00th=[33817], | 99.00th=[49021], 99.50th=[53740], 99.90th=[68682], 99.95th=[71828], | 99.99th=[71828] bw ( KiB/s): min= 40, max= 254, per=25.99%, avg=133.59, stdev=37.28, samples=94 iops : min= 10, max= 63, avg=33.07, stdev= 9.29, samples=94 lat (usec) : 100=0.03%, 250=0.03%, 500=0.78%, 750=0.36%, 1000=0.33% lat (msec) : 2=0.78%, 4=11.33%, 10=17.87%, 20=41.67%, 50=26.01% lat (msec) : 100=0.78%, 2000=0.03% cpu : usr=0.09%, sys=25.55%, ctx=9038, 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=185987: Mon Dec 29 14:42:57 2025 read: IOPS=30, BW=124KiB/s (127kB/s)(6028KiB/48661msec) clat (usec): min=129, max=74040, avg=17050.07, stdev=8870.91 lat (usec): min=129, max=74041, avg=17050.80, stdev=8870.64 clat percentiles (usec): | 1.00th=[ 412], 5.00th=[ 7504], 10.00th=[ 8848], 20.00th=[10421], | 30.00th=[11731], 40.00th=[13042], 50.00th=[15401], 60.00th=[17433], | 70.00th=[19530], 80.00th=[22414], 90.00th=[27657], 95.00th=[33817], | 99.00th=[47973], 99.50th=[56361], 99.90th=[72877], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 48, max= 208, per=25.69%, avg=126.12, stdev=31.95, samples=94 iops : min= 12, max= 52, avg=31.20, stdev= 8.05, samples=94 write: IOPS=32, BW=129KiB/s (132kB/s)(6260KiB/48661msec); 0 zone resets clat (usec): min=548, max=1244.1k, avg=14495.16, stdev=32848.66 lat (usec): min=548, max=1244.1k, avg=14495.90, stdev=32848.67 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 2376], 10.00th=[ 2999], | 20.00th=[ 3687], 30.00th=[ 5932], 40.00th=[ 9372], | 50.00th=[ 11731], 60.00th=[ 13829], 70.00th=[ 16909], | 80.00th=[ 22152], 90.00th=[ 28443], 95.00th=[ 33817], | 99.00th=[ 47449], 99.50th=[ 58983], 99.90th=[ 65799], | 99.95th=[1249903], 99.99th=[1249903] bw ( KiB/s): min= 13, max= 199, per=25.14%, avg=129.21, stdev=33.13, samples=95 iops : min= 3, max= 49, avg=31.98, stdev= 8.23, samples=95 lat (usec) : 250=0.07%, 500=0.72%, 750=0.23%, 1000=0.23% lat (msec) : 2=1.17%, 4=9.90%, 10=17.87%, 20=43.62%, 50=25.39% lat (msec) : 100=0.78%, 2000=0.03% cpu : usr=0.09%, sys=25.31%, ctx=9140, 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=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=185988: Mon Dec 29 14:42:57 2025 read: IOPS=30, BW=124KiB/s (127kB/s)(6052KiB/48850msec) clat (usec): min=126, max=73811, avg=16859.07, stdev=8877.16 lat (usec): min=126, max=73812, avg=16859.80, stdev=8877.24 clat percentiles (usec): | 1.00th=[ 404], 5.00th=[ 7242], 10.00th=[ 8455], 20.00th=[10159], | 30.00th=[11731], 40.00th=[13304], 50.00th=[15270], 60.00th=[17433], | 70.00th=[19530], 80.00th=[22414], 90.00th=[26608], 95.00th=[32900], | 99.00th=[47973], 99.50th=[55313], 99.90th=[72877], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 24, max= 208, per=25.70%, avg=126.21, stdev=30.67, samples=95 iops : min= 6, max= 52, avg=31.23, stdev= 7.68, samples=95 write: IOPS=31, BW=128KiB/s (131kB/s)(6236KiB/48850msec); 0 zone resets clat (usec): min=656, max=1233.5k, avg=14790.48, stdev=32732.39 lat (usec): min=656, max=1233.5k, avg=14791.22, stdev=32732.41 clat percentiles (usec): | 1.00th=[ 848], 5.00th=[ 2376], 10.00th=[ 2966], | 20.00th=[ 3687], 30.00th=[ 6063], 40.00th=[ 9634], | 50.00th=[ 11600], 60.00th=[ 13960], 70.00th=[ 17695], | 80.00th=[ 22676], 90.00th=[ 28967], 95.00th=[ 33424], | 99.00th=[ 49021], 99.50th=[ 54789], 99.90th=[ 78119], | 99.95th=[1233126], 99.99th=[1233126] bw ( KiB/s): min= 32, max= 199, per=25.29%, avg=130.00, stdev=31.73, samples=95 iops : min= 8, max= 49, avg=32.18, stdev= 7.88, samples=95 lat (usec) : 250=0.13%, 500=0.78%, 750=0.26%, 1000=0.52% lat (msec) : 2=1.14%, 4=9.73%, 10=17.68%, 20=43.07%, 50=25.88% lat (msec) : 100=0.78%, 2000=0.03% cpu : usr=0.08%, sys=25.20%, ctx=9158, 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=492KiB/s (503kB/s), 123KiB/s-124KiB/s (126kB/s-127kB/s), io=23.4MiB (24.6MB), run=48418-48850msec WRITE: bw=515KiB/s (527kB/s), 128KiB/s-131KiB/s (131kB/s-134kB/s), io=24.6MiB (25.7MB), run=48418-48850msec rand-rw: (groupid=0, jobs=1): err= 0: pid=185981: Mon Dec 29 14:43:03 2025 read: IOPS=27, BW=109KiB/s (111kB/s)(5992KiB/55056msec) clat (msec): min=2, max=1252, avg=16.22, stdev=34.18 lat (msec): min=2, max=1252, avg=16.22, stdev=34.18 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 7], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 24], 90.00th=[ 34], 95.00th=[ 42], | 99.00th=[ 57], 99.50th=[ 65], 99.90th=[ 86], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 31, max= 400, per=25.27%, avg=109.93, stdev=78.08, samples=107 iops : min= 7, max= 100, avg=27.16, stdev=19.63, samples=107 write: IOPS=28, BW=114KiB/s (117kB/s)(6296KiB/55056msec); 0 zone resets clat (usec): min=4447, max=94124, avg=19359.42, stdev=13622.37 lat (usec): min=4448, max=94125, avg=19360.28, stdev=13622.37 clat percentiles (usec): | 1.00th=[ 5080], 5.00th=[ 5538], 10.00th=[ 6128], 20.00th=[ 7177], | 30.00th=[ 8979], 40.00th=[11994], 50.00th=[15533], 60.00th=[20055], | 70.00th=[25035], 80.00th=[30016], 90.00th=[38011], 95.00th=[44303], | 99.00th=[63177], 99.50th=[73925], 99.90th=[89654], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 7, max= 392, per=25.24%, avg=115.08, stdev=77.79, samples=107 iops : min= 1, max= 98, avg=28.45, stdev=19.57, samples=107 lat (msec) : 4=1.33%, 10=37.83%, 20=27.60%, 50=30.76%, 100=2.44% lat (msec) : 2000=0.03% cpu : usr=0.08%, sys=12.46%, ctx=5490, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185982: Mon Dec 29 14:43:03 2025 read: IOPS=26, BW=108KiB/s (110kB/s)(5940KiB/55093msec) clat (msec): min=2, max=1230, avg=16.49, stdev=33.92 lat (msec): min=2, max=1230, avg=16.49, stdev=33.92 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 5], 10.00th=[ 5], 20.00th=[ 6], | 30.00th=[ 8], 40.00th=[ 10], 50.00th=[ 12], 60.00th=[ 14], | 70.00th=[ 18], 80.00th=[ 25], 90.00th=[ 34], 95.00th=[ 42], | 99.00th=[ 58], 99.50th=[ 67], 99.90th=[ 85], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 400, per=25.06%, avg=109.03, stdev=77.93, samples=107 iops : min= 1, max= 100, avg=26.93, stdev=19.61, samples=107 write: IOPS=28, BW=115KiB/s (118kB/s)(6348KiB/55093msec); 0 zone resets clat (usec): min=3892, max=83066, avg=19105.76, stdev=13516.97 lat (usec): min=3892, max=83067, avg=19107.62, stdev=13517.02 clat percentiles (usec): | 1.00th=[ 4948], 5.00th=[ 5604], 10.00th=[ 6325], 20.00th=[ 7439], | 30.00th=[ 8979], 40.00th=[11600], 50.00th=[15139], 60.00th=[19530], | 70.00th=[24249], 80.00th=[29492], 90.00th=[36963], 95.00th=[43779], | 99.00th=[66323], 99.50th=[74974], 99.90th=[82314], 99.95th=[83362], | 99.99th=[83362] bw ( KiB/s): min= 32, max= 384, per=25.32%, avg=115.46, stdev=76.69, samples=107 iops : min= 8, max= 96, avg=28.54, stdev=19.28, samples=107 lat (msec) : 4=1.37%, 10=36.82%, 20=29.56%, 50=29.43%, 100=2.80% lat (msec) : 2000=0.03% cpu : usr=0.11%, sys=12.51%, ctx=5600, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=185983: Mon Dec 29 14:43:03 2025 read: IOPS=27, BW=110KiB/s (112kB/s)(6028KiB/54990msec) clat (usec): min=2554, max=80289, avg=15227.87, stdev=11869.90 lat (usec): min=2554, max=80290, avg=15228.56, stdev=11869.94 clat percentiles (usec): | 1.00th=[ 3458], 5.00th=[ 4359], 10.00th=[ 4817], 20.00th=[ 5735], | 30.00th=[ 7373], 40.00th=[ 9241], 50.00th=[11207], 60.00th=[13304], | 70.00th=[16909], 80.00th=[23725], 90.00th=[32637], 95.00th=[40633], | 99.00th=[55313], 99.50th=[60031], 99.90th=[67634], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 15, max= 416, per=25.51%, avg=110.97, stdev=78.73, samples=107 iops : min= 3, max= 104, avg=27.42, stdev=19.81, samples=107 write: IOPS=28, BW=114KiB/s (117kB/s)(6260KiB/54990msec); 0 zone resets clat (msec): min=4, max=1239, avg=20.30, stdev=33.93 lat (msec): min=4, max=1239, avg=20.30, stdev=33.93 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 31], 90.00th=[ 38], 95.00th=[ 47], | 99.00th=[ 72], 99.50th=[ 80], 99.90th=[ 110], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 31, max= 384, per=25.24%, avg=115.08, stdev=76.03, samples=107 iops : min= 7, max= 96, avg=28.45, stdev=19.12, samples=107 lat (msec) : 4=1.30%, 10=36.82%, 20=29.95%, 50=29.07%, 100=2.80% lat (msec) : 250=0.03%, 2000=0.03% cpu : usr=0.09%, sys=12.33%, ctx=5668, 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=185984: Mon Dec 29 14:43:03 2025 read: IOPS=27, BW=110KiB/s (113kB/s)(6052KiB/55063msec) clat (usec): min=2946, max=80125, avg=15245.95, stdev=12224.38 lat (usec): min=2946, max=80126, avg=15246.66, stdev=12224.43 clat percentiles (usec): | 1.00th=[ 3720], 5.00th=[ 4359], 10.00th=[ 4817], 20.00th=[ 5604], | 30.00th=[ 7177], 40.00th=[ 9110], 50.00th=[11207], 60.00th=[13566], | 70.00th=[16581], 80.00th=[23200], 90.00th=[33162], 95.00th=[40633], | 99.00th=[57410], 99.50th=[65799], 99.90th=[78119], 99.95th=[80217], | 99.99th=[80217] bw ( KiB/s): min= 15, max= 400, per=25.44%, avg=110.67, stdev=76.52, samples=107 iops : min= 3, max= 100, avg=27.35, stdev=19.25, samples=107 write: IOPS=28, BW=113KiB/s (116kB/s)(6236KiB/55063msec); 0 zone resets clat (msec): min=3, max=1240, avg=20.35, stdev=33.99 lat (msec): min=3, max=1240, avg=20.35, stdev=33.99 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 8], | 30.00th=[ 9], 40.00th=[ 12], 50.00th=[ 16], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 31], 90.00th=[ 39], 95.00th=[ 48], | 99.00th=[ 67], 99.50th=[ 74], 99.90th=[ 110], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 31, max= 392, per=25.09%, avg=114.41, stdev=77.96, samples=107 iops : min= 7, max= 98, avg=28.28, stdev=19.62, samples=107 lat (msec) : 4=1.27%, 10=37.37%, 20=29.72%, 50=28.65%, 100=2.93% lat (msec) : 250=0.03%, 2000=0.03% cpu : usr=0.09%, sys=12.62%, ctx=5478, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=436KiB/s (446kB/s), 108KiB/s-110KiB/s (110kB/s-113kB/s), io=23.4MiB (24.6MB), run=54990-55093msec WRITE: bw=456KiB/s (467kB/s), 113KiB/s-115KiB/s (116kB/s-118kB/s), io=24.6MiB (25.7MB), run=54990-55093msec 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=186015: Mon Dec 29 14:43:23 2025 read: IOPS=28, BW=450KiB/s (460kB/s)(5920KiB/13169msec) clat (usec): min=334, max=50846, avg=17825.99, stdev=8489.23 lat (usec): min=335, max=50847, avg=17826.83, stdev=8489.59 clat percentiles (usec): | 1.00th=[ 388], 5.00th=[ 498], 10.00th=[ 9372], 20.00th=[11338], | 30.00th=[13173], 40.00th=[14746], 50.00th=[16581], 60.00th=[18744], | 70.00th=[21365], 80.00th=[25035], 90.00th=[28443], 95.00th=[32637], | 99.00th=[41157], 99.50th=[46924], 99.90th=[50594], 99.95th=[50594], | 99.99th=[50594] bw ( KiB/s): min= 319, max= 637, per=25.85%, avg=446.62, stdev=85.72, samples=26 iops : min= 19, max= 39, avg=27.35, stdev= 5.48, samples=26 write: IOPS=30, BW=484KiB/s (495kB/s)(6368KiB/13169msec); 0 zone resets clat (usec): min=1555, max=55151, avg=16480.08, stdev=10235.76 lat (usec): min=1556, max=55152, avg=16481.04, stdev=10235.76 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 4490], 10.00th=[ 5145], 20.00th=[ 6980], | 30.00th=[ 9765], 40.00th=[12256], 50.00th=[14353], 60.00th=[16581], | 70.00th=[20317], 80.00th=[24249], 90.00th=[31589], 95.00th=[37487], | 99.00th=[47973], 99.50th=[50070], 99.90th=[55313], 99.95th=[55313], | 99.99th=[55313] bw ( KiB/s): min= 288, max= 640, per=26.58%, avg=483.31, stdev=103.40, samples=26 iops : min= 18, max= 40, avg=29.65, stdev= 6.51, samples=26 lat (usec) : 500=2.47%, 750=0.13% lat (msec) : 2=0.52%, 4=0.65%, 10=18.49%, 20=44.92%, 50=32.29% lat (msec) : 100=0.52% cpu : usr=0.12%, sys=29.28%, ctx=2790, 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=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=186016: Mon Dec 29 14:43:23 2025 read: IOPS=25, BW=414KiB/s (424kB/s)(5744KiB/13858msec) clat (usec): min=333, max=68331, avg=19326.50, stdev=8883.64 lat (usec): min=334, max=68332, avg=19332.06, stdev=8882.03 clat percentiles (usec): | 1.00th=[ 359], 5.00th=[ 7504], 10.00th=[10028], 20.00th=[12911], | 30.00th=[14615], 40.00th=[16712], 50.00th=[19268], 60.00th=[20841], | 70.00th=[22938], 80.00th=[26084], 90.00th=[29230], 95.00th=[32637], | 99.00th=[50594], 99.50th=[63177], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 254, max= 606, per=23.87%, avg=412.52, stdev=90.87, samples=27 iops : min= 15, max= 37, avg=25.19, stdev= 5.64, samples=27 write: IOPS=29, BW=472KiB/s (484kB/s)(6544KiB/13858msec); 0 zone resets clat (usec): min=1680, max=61534, avg=16875.59, stdev=10634.61 lat (usec): min=1680, max=61535, avg=16876.74, stdev=10634.58 clat percentiles (usec): | 1.00th=[ 2769], 5.00th=[ 4555], 10.00th=[ 4948], 20.00th=[ 7373], | 30.00th=[ 9765], 40.00th=[11994], 50.00th=[14484], 60.00th=[17957], | 70.00th=[20841], 80.00th=[25560], 90.00th=[32375], 95.00th=[37487], | 99.00th=[44303], 99.50th=[44827], 99.90th=[61604], 99.95th=[61604], | 99.99th=[61604] bw ( KiB/s): min= 317, max= 736, per=25.34%, avg=460.67, stdev=104.71, samples=27 iops : min= 19, max= 46, avg=28.19, stdev= 6.78, samples=27 lat (usec) : 500=1.30%, 750=0.13%, 1000=0.39% lat (msec) : 2=0.26%, 4=1.04%, 10=17.84%, 20=40.89%, 50=37.37% lat (msec) : 100=0.78% cpu : usr=0.09%, sys=29.01%, ctx=2990, 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=186017: Mon Dec 29 14:43:23 2025 read: IOPS=28, BW=463KiB/s (474kB/s)(6256KiB/13505msec) clat (usec): min=332, max=67589, avg=18653.62, stdev=9237.86 lat (usec): min=333, max=67590, avg=18654.21, stdev=9237.88 clat percentiles (usec): | 1.00th=[ 371], 5.00th=[ 6849], 10.00th=[ 9634], 20.00th=[11994], | 30.00th=[13566], 40.00th=[15926], 50.00th=[17695], 60.00th=[19792], | 70.00th=[21365], 80.00th=[24511], 90.00th=[28705], 95.00th=[33817], | 99.00th=[51643], 99.50th=[53740], 99.90th=[67634], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 256, max= 640, per=26.84%, avg=463.85, stdev=88.09, samples=26 iops : min= 16, max= 40, avg=28.42, stdev= 5.56, samples=26 write: IOPS=27, BW=447KiB/s (457kB/s)(6032KiB/13505msec); 0 zone resets clat (usec): min=1035, max=58168, avg=16436.89, stdev=9897.58 lat (usec): min=1036, max=58169, avg=16438.98, stdev=9897.54 clat percentiles (usec): | 1.00th=[ 3490], 5.00th=[ 4621], 10.00th=[ 4948], 20.00th=[ 6980], | 30.00th=[10159], 40.00th=[12780], 50.00th=[14353], 60.00th=[17171], | 70.00th=[19530], 80.00th=[24511], 90.00th=[30278], 95.00th=[34866], | 99.00th=[45876], 99.50th=[46924], 99.90th=[57934], 99.95th=[57934], | 99.99th=[57934] bw ( KiB/s): min= 223, max= 632, per=24.01%, avg=436.54, stdev=105.73, samples=26 iops : min= 13, max= 39, avg=26.69, stdev= 6.78, samples=26 lat (usec) : 500=1.69%, 750=0.39% lat (msec) : 2=0.52%, 4=1.04%, 10=16.15%, 20=45.96%, 50=33.33% lat (msec) : 100=0.91% cpu : usr=0.07%, sys=28.96%, ctx=2914, 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=186018: Mon Dec 29 14:43:23 2025 read: IOPS=28, BW=450KiB/s (461kB/s)(6032KiB/13395msec) clat (usec): min=101, max=51186, avg=19196.95, stdev=8680.32 lat (usec): min=102, max=51186, avg=19197.50, stdev=8680.33 clat percentiles (usec): | 1.00th=[ 351], 5.00th=[ 668], 10.00th=[ 9896], 20.00th=[12387], | 30.00th=[14615], 40.00th=[16581], 50.00th=[19268], 60.00th=[21365], | 70.00th=[23200], 80.00th=[25822], 90.00th=[30278], 95.00th=[33424], | 99.00th=[43779], 99.50th=[46924], 99.90th=[51119], 99.95th=[51119], | 99.99th=[51119] bw ( KiB/s): min= 255, max= 640, per=25.72%, avg=444.38, stdev=94.64, samples=26 iops : min= 15, max= 40, avg=27.19, stdev= 6.01, samples=26 write: IOPS=29, BW=467KiB/s (478kB/s)(6256KiB/13395msec); 0 zone resets clat (usec): min=1105, max=51484, avg=15711.99, stdev=10274.25 lat (usec): min=1106, max=51485, avg=15713.01, stdev=10274.26 clat percentiles (usec): | 1.00th=[ 2737], 5.00th=[ 4424], 10.00th=[ 4883], 20.00th=[ 6128], | 30.00th=[ 8356], 40.00th=[10552], 50.00th=[13304], 60.00th=[16057], | 70.00th=[19792], 80.00th=[23987], 90.00th=[30802], 95.00th=[36963], | 99.00th=[43254], 99.50th=[49546], 99.90th=[51643], 99.95th=[51643], | 99.99th=[51643] bw ( KiB/s): min= 253, max= 636, per=25.65%, avg=466.38, stdev=104.56, samples=26 iops : min= 15, max= 39, avg=28.58, stdev= 6.54, samples=26 lat (usec) : 250=0.13%, 500=1.82%, 750=0.52% lat (msec) : 2=0.26%, 4=1.82%, 10=19.92%, 20=37.50%, 50=37.76% lat (msec) : 100=0.26% cpu : usr=0.05%, sys=29.15%, ctx=2873, 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=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=1728KiB/s (1770kB/s), 414KiB/s-463KiB/s (424kB/s-474kB/s), io=23.4MiB (24.5MB), run=13169-13858msec WRITE: bw=1818KiB/s (1862kB/s), 447KiB/s-484KiB/s (457kB/s-495kB/s), io=24.6MiB (25.8MB), run=13169-13858msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186010: Mon Dec 29 14:43:24 2025 read: IOPS=24, BW=393KiB/s (402kB/s)(5920KiB/15063msec) clat (usec): min=3573, max=69785, avg=16793.67, stdev=11853.81 lat (usec): min=3573, max=69786, avg=16794.27, stdev=11853.79 clat percentiles (usec): | 1.00th=[ 4359], 5.00th=[ 5276], 10.00th=[ 5997], 20.00th=[ 7570], | 30.00th=[ 9503], 40.00th=[11076], 50.00th=[12649], 60.00th=[15139], | 70.00th=[18482], 80.00th=[24249], 90.00th=[35390], 95.00th=[42730], | 99.00th=[55837], 99.50th=[65799], 99.90th=[69731], 99.95th=[69731], | 99.99th=[69731] bw ( KiB/s): min= 192, max= 1053, per=23.49%, avg=371.17, stdev=163.53, samples=29 iops : min= 12, max= 65, avg=22.76, stdev=10.21, samples=29 write: IOPS=26, BW=423KiB/s (433kB/s)(6368KiB/15063msec); 0 zone resets clat (usec): min=5958, max=78716, avg=22121.90, stdev=13241.63 lat (usec): min=5959, max=78717, avg=22123.18, stdev=13241.66 clat percentiles (usec): | 1.00th=[ 6390], 5.00th=[ 7439], 10.00th=[ 8225], 20.00th=[10290], | 30.00th=[12256], 40.00th=[14877], 50.00th=[18744], 60.00th=[22414], | 70.00th=[27132], 80.00th=[33817], 90.00th=[41681], 95.00th=[50070], | 99.00th=[60031], 99.50th=[63177], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 222, max= 894, per=24.09%, avg=400.45, stdev=144.77, samples=29 iops : min= 13, max= 55, avg=24.59, stdev= 9.07, samples=29 lat (msec) : 4=0.13%, 10=25.13%, 20=37.50%, 50=33.59%, 100=3.65% cpu : usr=0.05%, sys=13.30%, ctx=1516, 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=186011: Mon Dec 29 14:43:24 2025 read: IOPS=23, BW=379KiB/s (388kB/s)(5744KiB/15155msec) clat (usec): min=2940, max=66459, avg=17543.53, stdev=12895.67 lat (usec): min=2940, max=66459, avg=17544.12, stdev=12895.67 clat percentiles (usec): | 1.00th=[ 3163], 5.00th=[ 5407], 10.00th=[ 6521], 20.00th=[ 7898], | 30.00th=[ 9503], 40.00th=[11338], 50.00th=[12780], 60.00th=[14615], | 70.00th=[19530], 80.00th=[26346], 90.00th=[38536], 95.00th=[48497], | 99.00th=[55837], 99.50th=[64750], 99.90th=[66323], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 159, max= 1088, per=23.94%, avg=378.27, stdev=194.06, samples=30 iops : min= 9, max= 68, avg=23.20, stdev=12.16, samples=30 write: IOPS=26, BW=432KiB/s (442kB/s)(6544KiB/15155msec); 0 zone resets clat (msec): min=3, max=102, avg=21.57, stdev=14.26 lat (msec): min=3, max=102, avg=21.57, stdev=14.26 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 41], 95.00th=[ 48], | 99.00th=[ 64], 99.50th=[ 72], 99.90th=[ 103], 99.95th=[ 103], | 99.99th=[ 103] bw ( KiB/s): min= 223, max= 1312, per=25.76%, avg=428.10, stdev=247.96, samples=30 iops : min= 13, max= 82, avg=26.33, stdev=15.59, samples=30 lat (msec) : 4=0.78%, 10=26.69%, 20=35.16%, 50=33.33%, 100=3.91% lat (msec) : 250=0.13% cpu : usr=0.07%, sys=13.10%, ctx=1463, 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=186012: Mon Dec 29 14:43:24 2025 read: IOPS=26, BW=418KiB/s (428kB/s)(6256KiB/14983msec) clat (usec): min=2854, max=67514, avg=16767.86, stdev=11805.35 lat (usec): min=2855, max=67515, avg=16768.57, stdev=11805.32 clat percentiles (usec): | 1.00th=[ 4490], 5.00th=[ 5669], 10.00th=[ 6390], 20.00th=[ 8455], | 30.00th=[ 9634], 40.00th=[10945], 50.00th=[12387], 60.00th=[14746], | 70.00th=[18482], 80.00th=[24249], 90.00th=[34341], 95.00th=[41681], | 99.00th=[60031], 99.50th=[62129], 99.90th=[67634], 99.95th=[67634], | 99.99th=[67634] bw ( KiB/s): min= 223, max= 1373, per=25.72%, avg=406.41, stdev=210.19, samples=29 iops : min= 13, max= 85, avg=24.97, stdev=13.13, samples=29 write: IOPS=25, BW=403KiB/s (412kB/s)(6032KiB/14983msec); 0 zone resets clat (msec): min=5, max=103, avg=22.30, stdev=13.57 lat (msec): min=5, max=103, avg=22.30, stdev=13.57 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 28], 80.00th=[ 33], 90.00th=[ 41], 95.00th=[ 49], | 99.00th=[ 62], 99.50th=[ 73], 99.90th=[ 104], 99.95th=[ 104], | 99.99th=[ 104] bw ( KiB/s): min= 223, max= 710, per=22.88%, avg=380.21, stdev=113.49, samples=29 iops : min= 13, max= 44, avg=23.31, stdev= 7.11, samples=29 lat (msec) : 4=0.13%, 10=24.74%, 20=37.89%, 50=34.11%, 100=2.99% lat (msec) : 250=0.13% cpu : usr=0.08%, sys=13.50%, ctx=1512, 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=186013: Mon Dec 29 14:43:24 2025 read: IOPS=24, BW=399KiB/s (408kB/s)(6032KiB/15123msec) clat (usec): min=3003, max=68728, avg=17112.89, stdev=12270.44 lat (usec): min=3004, max=68729, avg=17113.48, stdev=12270.45 clat percentiles (usec): | 1.00th=[ 3884], 5.00th=[ 5342], 10.00th=[ 6259], 20.00th=[ 7439], | 30.00th=[ 9241], 40.00th=[11076], 50.00th=[12780], 60.00th=[15664], | 70.00th=[19530], 80.00th=[24773], 90.00th=[37487], 95.00th=[45351], | 99.00th=[54264], 99.50th=[65799], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 192, max= 1021, per=23.40%, avg=369.69, stdev=154.82, samples=29 iops : min= 12, max= 63, avg=22.66, stdev= 9.62, samples=29 write: IOPS=25, BW=414KiB/s (424kB/s)(6256KiB/15123msec); 0 zone resets clat (usec): min=4022, max=64627, avg=22045.12, stdev=13315.93 lat (usec): min=4023, max=64628, avg=22046.53, stdev=13315.99 clat percentiles (usec): | 1.00th=[ 5276], 5.00th=[ 6783], 10.00th=[ 7898], 20.00th=[10159], | 30.00th=[12780], 40.00th=[15664], 50.00th=[19006], 60.00th=[22414], | 70.00th=[26346], 80.00th=[31851], 90.00th=[40633], 95.00th=[50070], | 99.00th=[62653], 99.50th=[63701], 99.90th=[64750], 99.95th=[64750], | 99.99th=[64750] bw ( KiB/s): min= 191, max= 862, per=23.28%, avg=386.97, stdev=132.15, samples=29 iops : min= 11, max= 53, avg=23.72, stdev= 8.31, samples=29 lat (msec) : 4=0.65%, 10=26.56%, 20=34.90%, 50=34.51%, 100=3.39% cpu : usr=0.07%, sys=13.25%, ctx=1490, 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=1580KiB/s (1618kB/s), 379KiB/s-418KiB/s (388kB/s-428kB/s), io=23.4MiB (24.5MB), run=14983-15155msec WRITE: bw=1663KiB/s (1703kB/s), 403KiB/s-432KiB/s (412kB/s-442kB/s), io=24.6MiB (25.8MB), run=14983-15155msec 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=186029: Mon Dec 29 14:43:33 2025 read: IOPS=3, BW=3278KiB/s (3356kB/s)(7168KiB/2187msec) clat (usec): min=930, max=246204, avg=158612.26, stdev=77285.09 lat (usec): min=931, max=246206, avg=158613.32, stdev=77285.09 clat percentiles (usec): | 1.00th=[ 930], 5.00th=[ 930], 10.00th=[ 930], 20.00th=[131597], | 30.00th=[175113], 40.00th=[175113], 50.00th=[179307], 60.00th=[183501], | 70.00th=[183501], 80.00th=[193987], 90.00th=[246416], 95.00th=[246416], | 99.00th=[246416], 99.50th=[246416], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 1965, max= 5873, per=39.32%, avg=2981.25, stdev=1928.19, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 write: IOPS=2, BW=2341KiB/s (2397kB/s)(5120KiB/2187msec); 0 zone resets clat (msec): min=162, max=236, avg=214.70, stdev=29.93 lat (msec): min=162, max=236, avg=214.77, stdev=29.94 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 228], 60.00th=[ 228], | 70.00th=[ 228], 80.00th=[ 228], 90.00th=[ 236], 95.00th=[ 236], | 99.00th=[ 236], 99.50th=[ 236], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 1965, max= 4079, per=25.41%, avg=2697.33, stdev=1197.28, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 1000=8.33% lat (msec) : 250=91.67% cpu : usr=0.00%, sys=60.25%, ctx=1163, 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=186030: Mon Dec 29 14:43:33 2025 read: IOPS=0, BW=758KiB/s (776kB/s)(2048KiB/2701msec) clat (msec): min=61, max=122, avg=92.03, stdev=43.23 lat (msec): min=61, max=122, avg=92.03, stdev=43.23 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 62], | 30.00th=[ 62], 40.00th=[ 62], 50.00th=[ 62], 60.00th=[ 123], | 70.00th=[ 123], 80.00th=[ 123], 90.00th=[ 123], 95.00th=[ 123], | 99.00th=[ 123], 99.50th=[ 123], 99.90th=[ 123], 99.95th=[ 123], | 99.99th=[ 123] bw ( KiB/s): min= 1954, max= 1965, per=25.84%, avg=1959.50, stdev= 7.78, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3791KiB/s (3882kB/s)(10.0MiB/2701msec); 0 zone resets clat (msec): min=41, max=657, avg=251.43, stdev=168.79 lat (msec): min=41, max=657, avg=251.50, stdev=168.79 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 42], 10.00th=[ 42], 20.00th=[ 126], | 30.00th=[ 155], 40.00th=[ 159], 50.00th=[ 201], 60.00th=[ 245], | 70.00th=[ 296], 80.00th=[ 317], 90.00th=[ 321], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1954, max= 6131, per=37.94%, avg=4027.75, stdev=1706.68, samples=4 iops : min= 1, max= 5, avg= 3.25, stdev= 1.71, samples=4 lat (msec) : 50=8.33%, 100=8.33%, 250=50.00%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=47.37%, ctx=505, 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=186031: Mon Dec 29 14:43:33 2025 read: IOPS=2, BW=2637KiB/s (2700kB/s)(6144KiB/2330msec) clat (usec): min=877, max=208341, avg=73196.38, stdev=87605.94 lat (usec): min=878, max=208342, avg=73197.24, stdev=87605.85 clat percentiles (usec): | 1.00th=[ 881], 5.00th=[ 881], 10.00th=[ 881], 20.00th=[ 881], | 30.00th=[ 881], 40.00th=[ 2073], 50.00th=[ 2073], 60.00th=[ 87557], | 70.00th=[139461], 80.00th=[139461], 90.00th=[208667], 95.00th=[208667], | 99.00th=[208667], 99.50th=[208667], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 4079, max= 5896, per=65.78%, avg=4987.50, stdev=1284.81, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=2, BW=2637KiB/s (2700kB/s)(6144KiB/2330msec); 0 zone resets clat (msec): min=177, max=472, avg=314.76, stdev=124.91 lat (msec): min=177, max=472, avg=314.81, stdev=124.90 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 266], 50.00th=[ 266], 60.00th=[ 266], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 1980, max= 3930, per=23.54%, avg=2499.25, stdev=954.31, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 1000=16.67% lat (msec) : 4=8.33%, 100=8.33%, 250=33.33%, 500=33.33% cpu : usr=0.00%, sys=46.07%, ctx=788, 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=186032: Mon Dec 29 14:43:33 2025 read: IOPS=2, BW=2119KiB/s (2170kB/s)(5120KiB/2416msec) clat (usec): min=896, max=300856, avg=144754.36, stdev=108512.87 lat (usec): min=898, max=300857, avg=144755.13, stdev=108512.61 clat percentiles (usec): | 1.00th=[ 898], 5.00th=[ 898], 10.00th=[ 898], 20.00th=[ 898], | 30.00th=[106431], 40.00th=[106431], 50.00th=[147850], 60.00th=[147850], | 70.00th=[168821], 80.00th=[168821], 90.00th=[299893], 95.00th=[299893], | 99.00th=[299893], 99.50th=[299893], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 1965, max= 6119, per=53.31%, avg=4042.00, stdev=2937.32, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2967KiB/s (3038kB/s)(7168KiB/2416msec); 0 zone resets clat (msec): min=140, max=456, avg=241.52, stdev=121.14 lat (msec): min=140, max=456, avg=241.58, stdev=121.13 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 144], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 180], 60.00th=[ 309], | 70.00th=[ 309], 80.00th=[ 313], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 1943, max= 4096, per=23.65%, avg=2510.75, stdev=1057.63, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (usec) : 1000=8.33% lat (msec) : 250=58.33%, 500=33.33% cpu : usr=0.00%, sys=48.70%, ctx=938, 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=7582KiB/s (7764kB/s), 758KiB/s-3278KiB/s (776kB/s-3356kB/s), io=20.0MiB (20.0MB), run=2187-2701msec WRITE: bw=10.4MiB/s (10.9MB/s), 2341KiB/s-3791KiB/s (2397kB/s-3882kB/s), io=28.0MiB (29.4MB), run=2187-2701msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186024: Mon Dec 29 14:43:33 2025 read: IOPS=3, BW=3850KiB/s (3942kB/s)(7168KiB/1862msec) clat (msec): min=50, max=454, avg=173.69, stdev=135.72 lat (msec): min=50, max=454, avg=173.69, stdev=135.72 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 52], 10.00th=[ 52], 20.00th=[ 67], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 171], 60.00th=[ 178], | 70.00th=[ 178], 80.00th=[ 194], 90.00th=[ 456], 95.00th=[ 456], | 99.00th=[ 456], 99.50th=[ 456], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 1910, max= 6501, per=49.98%, avg=3486.33, stdev=2611.69, samples=3 iops : min= 1, max= 6, avg= 3.00, stdev= 2.65, samples=3 write: IOPS=2, BW=2750KiB/s (2816kB/s)(5120KiB/1862msec); 0 zone resets clat (msec): min=40, max=293, avg=123.16, stdev=98.68 lat (msec): min=40, max=293, avg=123.23, stdev=98.68 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 41], 10.00th=[ 41], 20.00th=[ 41], | 30.00th=[ 79], 40.00th=[ 79], 50.00th=[ 95], 60.00th=[ 95], | 70.00th=[ 109], 80.00th=[ 109], 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= 1625, max= 4096, per=26.05%, avg=2543.67, stdev=1351.89, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 lat (msec) : 50=8.33%, 100=33.33%, 250=41.67%, 500=16.67% cpu : usr=0.05%, sys=20.96%, ctx=129, 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=186025: Mon Dec 29 14:43:33 2025 read: IOPS=0, BW=698KiB/s (714kB/s)(2048KiB/2936msec) clat (msec): min=42, max=740, avg=391.67, stdev=493.68 lat (msec): min=42, max=740, avg=391.67, stdev=493.68 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 43], 10.00th=[ 43], 20.00th=[ 43], | 30.00th=[ 43], 40.00th=[ 43], 50.00th=[ 43], 60.00th=[ 743], | 70.00th=[ 743], 80.00th=[ 743], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1607, max= 1910, per=25.21%, avg=1758.50, stdev=214.25, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3488KiB/s (3571kB/s)(10.0MiB/2936msec); 0 zone resets clat (msec): min=52, max=382, avg=214.16, stdev=125.45 lat (msec): min=52, max=382, avg=214.23, stdev=125.45 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 53], 10.00th=[ 53], 20.00th=[ 70], | 30.00th=[ 90], 40.00th=[ 130], 50.00th=[ 178], 60.00th=[ 253], | 70.00th=[ 313], 80.00th=[ 326], 90.00th=[ 351], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 2015, max= 6430, per=37.35%, avg=3647.25, stdev=2094.99, samples=4 iops : min= 1, max= 6, avg= 3.25, stdev= 2.22, samples=4 lat (msec) : 50=8.33%, 100=25.00%, 250=16.67%, 500=41.67%, 750=8.33% cpu : usr=0.03%, sys=23.82%, ctx=118, 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=186026: Mon Dec 29 14:43:33 2025 read: IOPS=2, BW=2763KiB/s (2829kB/s)(6144KiB/2224msec) clat (msec): min=54, max=572, avg=244.30, stdev=175.16 lat (msec): min=54, max=572, avg=244.30, stdev=175.16 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 236], | 70.00th=[ 245], 80.00th=[ 245], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 2015, max= 4096, per=44.54%, avg=3107.00, stdev=1044.32, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=2, BW=2763KiB/s (2829kB/s)(6144KiB/2224msec); 0 zone resets clat (msec): min=59, max=236, avg=118.51, stdev=64.24 lat (msec): min=59, max=236, avg=118.59, stdev=64.24 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 60], 10.00th=[ 60], 20.00th=[ 78], | 30.00th=[ 78], 40.00th=[ 93], 50.00th=[ 93], 60.00th=[ 103], | 70.00th=[ 142], 80.00th=[ 142], 90.00th=[ 236], 95.00th=[ 236], | 99.00th=[ 236], 99.50th=[ 236], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 1910, max= 6420, per=35.31%, avg=3448.33, stdev=2574.07, samples=3 iops : min= 1, max= 6, avg= 2.67, stdev= 2.89, samples=3 lat (msec) : 100=33.33%, 250=58.33%, 750=8.33% cpu : usr=0.04%, sys=16.78%, ctx=100, 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=186027: Mon Dec 29 14:43:33 2025 read: IOPS=2, BW=2695KiB/s (2759kB/s)(5120KiB/1900msec) clat (msec): min=73, max=486, avg=196.67, stdev=169.12 lat (msec): min=73, max=486, avg=196.67, stdev=169.12 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 74], | 30.00th=[ 88], 40.00th=[ 88], 50.00th=[ 140], 60.00th=[ 140], | 70.00th=[ 194], 80.00th=[ 194], 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= 3820, max= 4096, per=56.75%, avg=3958.00, stdev=195.16, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=3, BW=3773KiB/s (3863kB/s)(7168KiB/1900msec); 0 zone resets clat (msec): min=51, max=308, avg=127.55, stdev=89.32 lat (msec): min=51, max=308, avg=127.62, stdev=89.31 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 52], 10.00th=[ 52], 20.00th=[ 74], | 30.00th=[ 79], 40.00th=[ 79], 50.00th=[ 91], 60.00th=[ 114], | 70.00th=[ 114], 80.00th=[ 176], 90.00th=[ 309], 95.00th=[ 309], | 99.00th=[ 309], 99.50th=[ 309], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 3820, max= 6481, per=52.74%, avg=5150.50, stdev=1881.61, samples=2 iops : min= 3, max= 6, avg= 4.50, stdev= 2.12, samples=2 lat (msec) : 100=50.00%, 250=33.33%, 500=16.67% cpu : usr=0.00%, sys=18.69%, ctx=112, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=6975KiB/s (7143kB/s), 698KiB/s-3850KiB/s (714kB/s-3942kB/s), io=20.0MiB (20.0MB), run=1862-2936msec WRITE: bw=9766KiB/s (10.0MB/s), 2750KiB/s-3773KiB/s (2816kB/s-3863kB/s), io=28.0MiB (29.4MB), run=1862-2936msec 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=186038: Mon Dec 29 14:43:41 2025 read: IOPS=1, BW=6808KiB/s (6971kB/s)(12.0MiB/1805msec) clat (msec): min=309, max=674, avg=527.63, stdev=193.01 lat (msec): min=309, max=674, avg=527.63, stdev=193.01 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 8192, max= 8192, per=90.25%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=22.34%, ctx=112, 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=186039: Mon Dec 29 14:43:41 2025 read: IOPS=0, BW=2277KiB/s (2331kB/s)(4096KiB/1799msec) clat (nsec): min=263239k, max=263239k, avg=263239034.00, stdev= 0.00 lat (nsec): min=263242k, max=263242k, avg=263241624.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 264], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 264], 95.00th=[ 264], | 99.00th=[ 264], 99.50th=[ 264], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 8094, max= 8094, per=89.17%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4554KiB/s (4663kB/s)(8192KiB/1799msec); 0 zone resets clat (msec): min=620, max=691, avg=655.91, stdev=49.69 lat (msec): min=621, max=691, avg=656.19, stdev=49.66 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 8192, max= 8192, per=52.75%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=24.97%, ctx=88, 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=186040: Mon Dec 29 14:43:41 2025 write: IOPS=1, BW=5824KiB/s (5963kB/s)(12.0MiB/2110msec); 0 zone resets clat (msec): min=159, max=1115, avg=624.78, stdev=478.04 lat (msec): min=160, max=1115, avg=625.00, stdev=478.11 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8126, max= 8192, per=52.54%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=22.52%, ctx=110, 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=186041: Mon Dec 29 14:43:41 2025 write: IOPS=1, BW=6484KiB/s (6640kB/s)(12.0MiB/1895msec); 0 zone resets clat (msec): min=200, max=1272, avg=561.98, stdev=615.58 lat (msec): min=200, max=1273, avg=562.28, stdev=615.56 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 213], 60.00th=[ 213], | 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=11100, max=11100, per=71.48%, avg=11100.00, 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=20.49%, ctx=79, 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=9077KiB/s (9295kB/s), 2277KiB/s-6808KiB/s (2331kB/s-6971kB/s), io=16.0MiB (16.8MB), run=1799-1805msec WRITE: bw=15.2MiB/s (15.9MB/s), 4554KiB/s-6484KiB/s (4663kB/s-6640kB/s), io=32.0MiB (33.6MB), run=1799-2110msec rand-rw: (groupid=0, jobs=1): err= 0: pid=186043: Mon Dec 29 14:43:42 2025 read: IOPS=2, BW=8623KiB/s (8830kB/s)(12.0MiB/1425msec) clat (msec): min=438, max=505, avg=470.52, stdev=33.59 lat (msec): min=438, max=505, avg=470.52, stdev=33.59 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 6168, max= 8126, per=83.63%, avg=7147.00, stdev=1384.52, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=48.46%, ctx=2707, 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=186044: Mon Dec 29 14:43:42 2025 read: IOPS=0, BW=2137KiB/s (2188kB/s)(4096KiB/1917msec) clat (nsec): min=522184k, max=522184k, avg=522183537.00, stdev= 0.00 lat (nsec): min=522184k, max=522184k, avg=522184244.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 5893, max= 5893, per=68.96%, avg=5893.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4273KiB/s (4376kB/s)(8192KiB/1917msec); 0 zone resets clat (msec): min=569, max=794, avg=681.59, stdev=159.10 lat (msec): min=569, max=794, avg=681.78, stdev=159.01 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 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= 7968, max= 7968, per=49.17%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=23.38%, ctx=785, 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=186045: Mon Dec 29 14:43:42 2025 write: IOPS=1, BW=6077KiB/s (6223kB/s)(12.0MiB/2022msec); 0 zone resets clat (msec): min=64, max=1539, avg=669.42, stdev=772.59 lat (msec): min=64, max=1539, avg=669.73, stdev=772.58 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 65], | 30.00th=[ 65], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7968, max= 7968, per=49.17%, avg=7968.00, 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=0.10%, sys=10.24%, ctx=41, 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=186046: Mon Dec 29 14:43:42 2025 write: IOPS=1, BW=6505KiB/s (6661kB/s)(12.0MiB/1889msec); 0 zone resets clat (msec): min=426, max=942, avg=614.19, stdev=285.53 lat (msec): min=427, max=943, avg=614.42, stdev=285.57 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 5752, max= 8126, per=42.82%, avg=6939.00, stdev=1678.67, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=16.53%, ctx=66, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=8547KiB/s (8752kB/s), 2137KiB/s-8623KiB/s (2188kB/s-8830kB/s), io=16.0MiB (16.8MB), run=1425-1917msec WRITE: bw=15.8MiB/s (16.6MB/s), 4273KiB/s-6505KiB/s (4376kB/s-6661kB/s), io=32.0MiB (33.6MB), run=1889-2022msec