this fork contains changes that add additional APM related parameters as well as possibility to force CPU into boost states on FX-9830P disabling APM was not possible this way, smucfglock bit could not be cleared even though DS list it as rw, forcing boost states is possible by passing BoostForce=1 argument, however CPU needs to already be in one of the boost states otherwise it will freeze if it is in a state you are disabling. this gains some speed-up in compute scenarios as the cores don't downclock anymore below 3.5GHz
amdmsrt (amdmsrtweaker-lnx) is a Linux port of the AmdMsrTweaker tool written by Martin Kinkelin and extended by Marcus Pollice.
It has been tested with a 14h (AMD E-350) and a 15h (AMD A10-5700) processor, but should work with all processors supported by AmdMsrTweaker. (Fam 10h-15h)
Changes to frequency will not be reflected by /proc/cpuinfo, but a quick benchmark such as "openssl speed sha1" should show a speed difference.
You can download statically compiled executables from bintray. After downloading and extracting, you might have to make the file executable. You can do this with "chmod +x amdmsrt-amd64" (or "chmod +x amdmsrt-i386") in a shell or in the file properties if you use a graphical file manager.
- 32 bit executable (sha1: cacf4a6ce93ee4dd9dadec43dd77687c5283acc8)
- 64 bit executable (sha1: d2c1b7b23a05555f38194c7228cd8732877b280e)
Clone the repo and make sure you have gcc and make installed. Then execute "make" in the cloned directory. Optionally copy the file "amdmsrt" to a directory in $PATH such as /usr/bin or /usr/local/bin.
Make sure you have the msr and cpuid modules loaded. ("modprobe msr"/"modprobe cpuid" as root) The program will otherwise exit with a corresponding error message.
See the file "readme.txt" for usage examples. The program has to executed as root and the executable is called "amdmsrt".
- Proper documentation
- Find a way to modify GPU p-states for Trinity. (10W more in idle on Linux compared to Windows, probably caused by missing Linux PowerPlay support for Trinity with the open drivers.)