Insecure migration VM test

[gosha]

Hi!

I tested default migration VM (8GB memory, disk on ceph-storage) vs insecure migration.
Results on pictures.

Default migration:



insecure migation:



Insecure migration faster almost 3 times.

--
Best regards,
Gosha

 

[udo]

Hi,
screenshots shows both the same.

Faster, of cource, you don't need the ssl-layer. How much depends on the cpus.
With three times faster I assume you have caching effects also.

Udo

 

[mir]

But why is downtime higher when using insecure migration?

 

[dietmar]

But why is downtime higher when using insecure migration?

There is a heuristic to determine when incremental updates stops. This heuristic uses network transfer speed and several other inputs. Point is: 'its a heuristic'.

 

[gosha]

Hi,
screenshots shows both the same.

No.
on first: migration speed 45.51 MB/s, duration 3:11
on second: migration speed 118.72 MB/s, duration 1:15

 

[gosha]

But why is downtime higher when using insecure migration?

This is working cluster. Loading is variable...

 

[tom]

this s

No.
on first: migration speed 45.51 MB/s, duration 3:11
on second: migration speed 118.72 MB/s, duration 1:15

this is not a reliable way to determine the difference between secure/insecure, there are too many other factors here.

do you have Intel AES enabled (Intel CPU setting in your mainboard bios)?

 

[gosha]

this is not a reliable way to determine the difference between secure/insecure, there are too many other factors here.
do you have Intel AES enabled (Intel CPU setting in your mainboard bios)?

Hm... I can't restart the servers to view bios. This is three ProLiant DL380e Gen8 (2хE5-2420)...
If default BIOS settings is AES enabled, then answer is yes!

here can:

Spoiler: cat /proc/cpuinfo

.....
processor : 23
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2420 0 @ 1.90GHz
stepping : 7
microcode : 0x710
cpu MHz : 1900.000
cache size : 15360 KB
physical id : 1
siblings : 12
core id : 5
cpu cores : 6
apicid : 43
initial apicid : 43
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm epb tpr_shadow vnmi flexpriority ept vpid xsaveopt dtherm ida arat pln pts
bugs :
bogomips : 3791.73
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:

Best regards,
Gosha