On 28 Apr 2016, at 07:43, pa011 pa011@web.de wrote:

One of my small servers is running on Debian8 for weeks now.

The memory is 256MB only.

Arm is showing (Linux 3.16.0-4-a...) Tor 0.2.7.6 (recommended) cpu: 20.0% tor, 5.7% arm mem: 136 MB (56.5%) pid: 560

while some 20-40 Mbit/s are running through.

The relay is connected to some 100Mbits/s.

Could somebody please explain what is the maximum throughput I could possibly reach with "MaxMemInQueues is set to 256 MB" ?

It really depends on your kernel and networking hardware.

I guess it does not make sense to change the MaxMemInQueues while memory is only 256MB?

You can reduce the number of other processes running, and increase MaxMemInQueues to somewhat less than 256MB - Tor needs other memory, and so does your kernel, and so do other processes. Using swap for Tor may slow things down more.

If in case I cant use the whole 100Mbit/s - what would be the minimum requirement in memory I would need as the CPU is just working on a 20 percent level?

We typically recommend 512MB, but your experience may vary depending on your exact CPU, distribution, background processes, etc.

Tim

Tim Wilson-Brown (teor)

teor2345 at gmail dot com PGP 968F094B ricochet:ekmygaiu4rzgsk6n