Re: non-standard TCP tunings in EC2 images

2016-07-25 Thread Lucas Nussbaum
On 25/07/16 at 16:32 +0200, Thomas Goirand wrote: > On 07/20/2016 12:03 PM, gustavo panizzo (gfa) wrote: > > I don't mind if there is a task/metapkg called "EC2-optimal", > > "OpenStack-Optimized", whatever. but the default image on each cloud > > provider should be as close as possible to debian i

Re: Use of Debian Installer to create cloud images.

2016-07-25 Thread Sam Hartman
what does the user experience look like for me as an image creator. Compare it to running debootstrap, vmdebootstrap or bootstrap-vz. I'm honestly curious. I would have thought making an image with d-i would have been rather heavy-weight and unweildy to run. I'd never given it serious thought, bu

Use of Debian Installer to create cloud images.

2016-07-25 Thread Charles Plessy
> > On Mon, 25 Jul 2016 15:59:18 +0200, Thomas Goirand > > said: > > > Using things like tasksel or d-i to generate a cloud image is really > > overengineering everything. Le Mon, Jul 25, 2016 at 04:19:39PM +0200, Thomas Lange a écrit : > > I would never use d-i or tasksel for creating

Re: non-standard TCP tunings in EC2 images

2016-07-25 Thread Sam Hartman
In fact, I think there was a consensus in the room in Cape Town that we very much did not want something as close to what d-i produces, but instead wanted something that was minimal. --Sam

Re: non-standard TCP tunings in EC2 images

2016-07-25 Thread Thomas Goirand
On 07/20/2016 12:54 PM, Marcin Kulisz wrote: > So in total we fixed something on users request and nobody complained about > it, Lucas + me: that's 2 complains. > win-win for me. On 07/20/2016 12:39 PM, Marcin Kulisz wrote: > Example setting up swappiness to 0 is reasonable as there is no swap

Re: non-standard TCP tunings in EC2 images

2016-07-25 Thread Thomas Goirand
On 07/20/2016 08:59 AM, Lucas Nussbaum wrote: > - there's a number of sysctl changes in /etc/sysctl.d/01_ec2.conf: > vm.swappiness = 0 > vm.dirty_ratio = 80 > vm.dirty_background_ratio = 5 > vm.dirty_expire_centisecs = 12000 > net.core.somaxconn = 1000 > net.core.netdev_max_

Re: non-standard TCP tunings in EC2 images

2016-07-25 Thread Thomas Goirand
On 07/20/2016 08:59 AM, Lucas Nussbaum wrote: > - dkms, which also pulls linux-headers-amd64, gcc 4.8 and 4.9, make, > patch, sudo: Apparently, this is required to build Intel's ixgbevf > driver, which is built and shipped inside the image. The 'task' in > bootstrapvz doesn't explain in which

Re: non-standard TCP tunings in EC2 images

2016-07-25 Thread Thomas Lange
> On Mon, 25 Jul 2016 15:59:18 +0200, Thomas Goirand said: > On 07/20/2016 11:26 AM, Thomas Lange wrote: >> Using tasksel we already have different flavours of Debian >> installations. Why not see the cloud images as another flavour, which >> besides having some additional pac

Re: non-standard TCP tunings in EC2 images

2016-07-25 Thread Thomas Goirand
On 07/20/2016 11:26 AM, Thomas Lange wrote: > Using tasksel we already have different flavours of Debian > installations. Why not see the cloud images as another flavour, which > besides having some additional packages installed also tune some > parameters for best practice in a cloud environment.