Nested Virtualization Benchmarks
20250811 -
CPU: 11th Gen Intel(R) Core(TM) i5-1145G7 @ 2.60GHz
Disk: 2 x 256GB
Filesystem: ZFS Raid-1 Mirror
PVE benchmark
root@pve:~# fio --name=sequential_write --rw=write --bs=1M --size=10G --filename=testfile --direct=1
sequential_write: (g=0): rw=write, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=1
fio-3.39
Starting 1 process
sequential_write: Laying out IO file (1 file / 10240MiB)
Jobs: 1 (f=1): [W(1)][100.0%][w=60.1MiB/s][w=60 IOPS][eta 00m:00s]
sequential_write: (groupid=0, jobs=1): err= 0: pid=1838716: Mon Aug 11 13:47:12 2025
write: IOPS=64, BW=64.1MiB/s (67.2MB/s)(10.0GiB/159737msec); 0 zone resets
clat (usec): min=1521, max=2857.4k, avg=15554.55, stdev=30350.48
lat (usec): min=1564, max=2857.4k, avg=15595.47, stdev=30349.98
clat percentiles (msec):
| 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 15],
| 30.00th=[ 15], 40.00th=[ 16], 50.00th=[ 17], 60.00th=[ 17],
| 70.00th=[ 18], 80.00th=[ 18], 90.00th=[ 20], 95.00th=[ 22],
| 99.00th=[ 32], 99.50th=[ 37], 99.90th=[ 110], 99.95th=[ 226],
| 99.99th=[ 760]
bw ( KiB/s): min= 4096, max=448512, per=100.00%, avg=66923.14, stdev=44636.99, samples=313
iops : min= 4, max= 438, avg=65.35, stdev=43.59, samples=313
lat (msec) : 2=0.50%, 4=12.31%, 10=1.23%, 20=77.88%, 50=7.84%
lat (msec) : 100=0.13%, 250=0.07%, 500=0.02%, 1000=0.01%, >=2000=0.01%
cpu : usr=0.34%, sys=13.49%, ctx=11028, majf=5, 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=0,10240,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
WRITE: bw=64.1MiB/s (67.2MB/s), 64.1MiB/s-64.1MiB/s (67.2MB/s-67.2MB/s), io=10.0GiB (10.7GB), run=159737-159737msecNested VM Benchmark
Ubuntu 24.04