dist: sysctl.d: Disable automatic numa balancing
dist: sysctl.d: Disable automatic numa balancing

On NUMA hardware, autonuma may reduce performance by
unmapping memory.

Since we do manual NUMA placement, autonuma will not
help anything.

We ought to disable it by setting the kernel.numa_balancing
sysctl to 0.

Fixes: #1120

Signed-of-by: Benoît Canet <ecd1f14f7c1c6dc7a40210bdcc3810e0107ecbc8@scylladb.com>
Message-Id: <1466006345-9972-1-git-send-email-ecd1f14f7c1c6dc7a40210bdcc3810e0107ecbc8@scylladb.com>

scylladb/scylla,kjniemi/scylla,avikivity/scylla,scylladb/scylla,duarten/scylla,avikivity/scylla,scylladb/scylla,raphaelsc/scylla,kjniemi/scylla,avikivity/scylla,raphaelsc/scylla,duarten/scylla,kjniemi/scylla,scylladb/scylla,duarten/scylla,raphaelsc/scylla