These parameters increase the throughput on various (large-ish)
systems by 5-10% on the slight expense of higher power consumption.
Socket buffers are increases and the system is configured to be
less aggressive when scheduling processes from one processor to
another one which ensures that the cache remains "hot" for longer.
On a slower system (apu1d) no performance improvement or loss
could have been measured.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
The setting cannot be set on the default system because the ip_vs
module is not loaded by default and there is no reason to load it
just because we would be able to set the setting.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
Make sure kernel address space is hidden from files somewhere
in /proc . This reduces attack surface and partially addresses #11659.
Signed-off-by: Peter Müller <peter.mueller@link38.eu>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
this reduce the differences between tty and scon installations
and make it easier to switch between.
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
This seems to be a failed concept and causes issues with transferring
large packets through an IPsec tunnel connection.
This configures the kernel to still respond to PMTU ICMP discovery
messages, but will not try this on its own.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
new versions of agetty missinterpretes the baudrate and set it as TERM
without the parameter agetty use the previous rate that was set by the
kernel via console=XXX,Baudrate parameter.
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
This patch always enables asynchronous logging which slows
down the system a lot on slow storage and some virtual environments.
It also removes the configuration options in the web
user interface, since this is not configurable any more.
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
When a file has been downloaded, all files in the update accelerator
cache directory have been chowned which causes huge IO load.
It is only required to set permissions that members of the group
can delete the files (purge function on the web user interface).
Changing the owner is completely unnecessary as only the squid
user needs write access and the web server is able to deliver
any file in the update cache anyways.
It comes much more handy to compile in the IPv6 kernel module
(because it is loading almost everywhere) and disable the IPv6
functionality when the system starts up.
Therefore, IPv6 is not accidentially enabled at any time unless
someone wants to use it and disables the systcl options.
