18f12e6f69
Doing a simple ping to my device shows this: 64 bytes from 10.0.253.101: icmp_seq=1 ttl=64 time=2.00 ms 64 bytes from 10.0.253.101: icmp_seq=2 ttl=64 time=2.02 ms 64 bytes from 10.0.253.101: icmp_seq=3 ttl=64 time=1.68 ms 64 bytes from 10.0.253.101: icmp_seq=4 ttl=64 time=1.91 ms 64 bytes from 10.0.253.101: icmp_seq=5 ttl=64 time=1.92 ms 64 bytes from 10.0.253.101: icmp_seq=6 ttl=64 time=2.04 ms Some users even report higher values on older kernels: 64 bytes from 192.168.1.10: seq=0 ttl=64 time=0.612 ms 64 bytes from 192.168.1.10: seq=1 ttl=64 time=2.852 ms 64 bytes from 192.168.1.10: seq=2 ttl=64 time=2.719 ms 64 bytes from 192.168.1.10: seq=3 ttl=64 time=2.741 ms 64 bytes from 192.168.1.10: seq=4 ttl=64 time=2.808 ms The problem is that the governor is set to Ondemand, which causes the CPU to clock all the way down to 48MHz in some cases. Switching to performance governor: 64 bytes from 10.0.253.101: icmp_seq=1 ttl=64 time=0.528 ms 64 bytes from 10.0.253.101: icmp_seq=2 ttl=64 time=0.561 ms 64 bytes from 10.0.253.101: icmp_seq=3 ttl=64 time=0.633 ms 64 bytes from 10.0.253.101: icmp_seq=4 ttl=64 time=0.526 ms In theory, using the Performance governor should increase power draw, but it looks like it really does not matter for this soc. Using a calibrated precision DC power supply (cpu idle): Ondemand 24.00V * 0.134A = 3.216 Watts 48.00V * 0.096A = 4.608 Watts Performance 24.00V * 0.135A = 3.240 Watts 48.00V * 0.096A = 4.608 Watts Let's simply switch to the Performance governor by default to fix the general jittery behaviour on devices using this soc. Tested on: MikroTik wAP ac Fixes: #13649 Reviewed-by: Robert Marko <robimarko@gmail.com> Reviewed-by: Thibaut VARÈNE <hacks@slashdirt.org> Signed-off-by: Koen Vandeputte <koen.vandeputte@citymesh.com> (cherry picked from commit b8e52852bd62236a2a84663b4592d221ebc64cb4)
OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
Sunshine!
Development
To build your own firmware you need a GNU/Linux, BSD or MacOSX system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.
Requirements
You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.
gcc binutils bzip2 flex python3 perl make find grep diff unzip gawk getopt
subversion libz-dev libc-dev rsync which
Quickstart
-
Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.
Related Repositories
The main repository uses multiple sub-repositories to manage packages of
different categories. All packages are installed via the OpenWrt package
manager called opkg. If you're looking to develop the web interface or port
packages to OpenWrt, please find the fitting repository below.
-
LuCI Web Interface: Modern and modular interface to control the device via a web browser.
-
OpenWrt Packages: Community repository of ported packages.
-
OpenWrt Routing: Packages specifically focused on (mesh) routing.
Support Information
For a list of supported devices see the OpenWrt Hardware Database
Documentation
Support Community
- Forum: For usage, projects, discussions and hardware advise.
- Support Chat: Channel
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0