[virt-tools-list] [virt-manager PATCH 4/5] domcapabilities: add caching of CPU security features

Daniel P. Berrangé berrange at redhat.com
Thu Apr 4 09:17:10 UTC 2019


On Wed, Apr 03, 2019 at 03:52:50PM +0200, Pavel Hrdina wrote:
> We will call this function multiple times so it makes sense to cache the
> result so we don't have to call libvirt APIs every time we will check
> what security features are available on the host.
> 
> Signed-off-by: Pavel Hrdina <phrdina at redhat.com>
> ---
>  virtinst/domcapabilities.py | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)

Arguably you can cache the entire capabilities API call for virt-install
since it won't change in the lifetime if a short virt-install
invokation and even if it does change you likely want virt-install to
have a consistent view of capabilities throughout its execution.

For virt-manager though being more dynamic is possibly more desirable
given its long life.

Reviewed-by: Daniel P. Berrangé <berrange at redhat.com>


Regards,
Daniel
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