On 26/04/16 14:55, Laurentiu Pancescu wrote: > Hello everyone, > > I would like to ask for your feedback about tuning the official CentOS > images for Vagrant. The good news: the next release will probably > provide Vagrant images for both CentOS 6 and 7, not just 7 as until now. > > Deltarpm allows yum to download just binary diffs for the already > installed packages and rebuild the rpms locally, thus decreasing the > used bandwidth. However, this is quite CPU and I/O intensive, and > significantly slower than just downloading the full packages (at least > for users on any sort of broadband connection). Deltarpm can be useful > for users in development countries, which do not always have access to > unmetered broadband, while someone hosting many VM instances on the same > server, like a VPS provider, might want to avoid the extra I/O load > (especially on mechanical hard-disks). Deltarpm is already part of the > CentOS 7 images since May 2015 - should we keep it or remove it? > > Tuned, a daemon that can adjust system parameters based on the workload > (it comes with a number of profiles, optimized for different > situations), is preinstalled in CentOS 7, and can significantly improve > performance and/or reduce load. Tuned can also be installed in CentOS > 6, and it would increase the size of the Vagrant image with just 291kB, > since its prerequisites are already installed. Should we add it to > CentOS 6? yes, lets add tuned to the c6 image, it can make a huge impact. And I believe there was consideration to add it to all CentOS-6 images including the cloud and centos userland ones. w.r.t deltarpm, I'd say skip it for now, we can make add a README to the image root that tells people they can install it. and we can then retospectively decide if its a good win ( based on user feedback ). On CentOS-7, lets leave tuned and deltarpm in for now, since we've already set some user expectations around it. -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc