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| -rw-r--r-- | gnu/packages/linux.scm | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm index 7cd311378b..aeb0392d9c 100644 --- a/gnu/packages/linux.scm +++ b/gnu/packages/linux.scm @@ -1182,6 +1182,94 @@ It grants direct and undocumented access to your hardware that may cause damage and should be used with caution, especially on untested models.") (license license:gpl3+))) ; see README.md (no licence headers) +(define-public corefreq + (package + (name "corefreq") + (version "1.86.7") + (source + (origin + (method git-fetch) + (uri (git-reference + (url "https://github.com/cyring/CoreFreq") + (commit version))) + (file-name (git-file-name name version)) + (sha256 + (base32 "1k8pyxcahc78kcc8q1h76dr91i1r33jciqhgkajkz3xa28qx8mhn")))) + (build-system linux-module-build-system) + (outputs (list "out" "linux-module")) + (arguments + `(#:imported-modules ((guix build gnu-build-system) + ,@%linux-module-build-system-modules) + #:modules ((guix build linux-module-build-system) + ((guix build gnu-build-system) #:prefix gnu:) + (guix build utils)) + #:make-flags + (list (string-append "CC=" ,(cc-for-target)) + "OPTIM_LVL=3" + (string-append "PREFIX=" (assoc-ref %outputs "out"))) + #:tests? #f ; no test suite + #:phases + (modify-phases %standard-phases + (add-after 'unpack 'untangle-module-targets + ;; Having to build everything in one pass would complicate the + ;; definition. Let each build system handle what it's good at. + (lambda _ + (substitute* "Makefile" + ((".*MAKE.*KERNELDIR.*") "")))) + (add-after 'build 'gnu:build + (assoc-ref gnu:%standard-phases 'build)) + (add-after 'install 'gnu:install + (assoc-ref gnu:%standard-phases 'install)) + (add-after 'install 'separate-module + (lambda* (#:key outputs #:allow-other-keys) + ;; Adding INSTALL_MOD_PATH= to #:make-flags would still create an + ;; empty <out>/lib/modules directory, so just do it all by hand. + (let* ((out (assoc-ref outputs "out")) + (module (assoc-ref outputs "linux-module"))) + (mkdir-p (string-append module "/lib")) + (rename-file (string-append out "/lib/modules") + (string-append module "/lib/modules"))))) + (add-after 'install 'install-README + ;; There is no proper documentation. Provide something. + (lambda* (#:key outputs #:allow-other-keys) + (let* ((out (assoc-ref outputs "out")) + (doc (string-append out "/share/doc/" + ,name "-" ,version))) + (install-file "README.md" doc))))))) + (home-page "https://github.com/cyring/CoreFreq") + (synopsis + "Measure performance data & tweak low-level settings on x86-64 CPUs") + (description + "CoreFreq is a CPU monitor that reports low-level processor settings and +performance data with notably high precision by using a loadable Linux kernel +module. Unlike most similar tools, it can be used to modify some settings if +supported by the hardware and at your own risk. It's designed for 64-bit x86 +Intel processors (Atom, Core2, Nehalem, SandyBridge, and newer) and compatible +architectures like AMD@tie{}Zen and Hygon@tie{}Dhyana. + +Supported processor features include: +@enumerate +@item time spent in C-states, including C1/C3 Auto- and UnDemotion; +@item core temperatures, voltage, and tweaking thermal limits; +@item core frequencies, ratios, and base clock rate; +@item enabling, disabling, and testing SpeedStep (EIST), Turbo Boost, and +Hyper-Threading or SMT; +@item enabling or disabling data cache prefetching; +@item kernel assembly code to keep as near as possible readings of performance +counters such as the @acronym{TSC, Time Stamp Counter}, @acronym{UCC, Unhalted +Core Cycles}, and @acronym{URC, Unhalted Reference Cycles}; +@item the number of instructions per cycle or second (IPS, IPC, and CPI); +@item memory controller geometry and RAM timings; +@item running processes' CPU affinity. +@end enumerate + +This package provides the @command{corefreqd} data collection daemon, the +@command{corefreq-cli} client to visualise and control it in real time, and the +@code{corefreqk} kernel module in its own separate output. Read the included +@file{README.md} before loading it.") + (supported-systems (list "x86_64-linux")) + (license license:gpl2))) + (define-public librem-ec-acpi-linux-module (package (name "librem-ec-acpi-linux-module") |