153 lines
4.7 KiB
Nix
153 lines
4.7 KiB
Nix
{
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lib,
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stdenv,
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fetchFromGitHub,
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buildLinux,
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variant,
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...
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}@args:
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let
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# comments with variant added for update script
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variants = {
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# ./update-zen.py zen
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zen = {
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version = "6.12.2"; # zen
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suffix = "zen1"; # zen
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sha256 = "0a6anmfm6495j6lwlywr62ghpwdvbdn54bl5baya5jz7vfqc1ghj"; # zen
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isLqx = false;
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};
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# ./update-zen.py lqx
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lqx = {
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version = "6.12.2"; # lqx
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suffix = "lqx3"; # lqx
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sha256 = "18ibc0dz70vxb61mzdhbhbjg0kfxgcsrl3zdki0cqlhcvfxwk19h"; # lqx
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isLqx = true;
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};
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};
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zenKernelsFor =
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{
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version,
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suffix,
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sha256,
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isLqx,
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}:
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buildLinux (
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args
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// {
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inherit version;
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pname = "linux-${if isLqx then "lqx" else "zen"}";
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modDirVersion = lib.versions.pad 3 "${version}-${suffix}";
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isZen = true;
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src = fetchFromGitHub {
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owner = "zen-kernel";
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repo = "zen-kernel";
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rev = "v${version}-${suffix}";
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inherit sha256;
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};
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# This is based on the following sources:
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# - zen: https://gitlab.archlinux.org/archlinux/packaging/packages/linux-zen/-/blob/main/config
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# - lqx: https://github.com/damentz/liquorix-package/blob/6.8/master/linux-liquorix/debian/config/kernelarch-x86/config-arch-64
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# - Liquorix features: https://liquorix.net/
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# The list below is not exhaustive, so the kernels probably doesn't match
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# the upstream, but should bring most of the improvements that will be
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# expected by users
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structuredExtraConfig =
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with lib.kernel;
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{
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# Zen Interactive tuning
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ZEN_INTERACTIVE = yes;
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# FQ-Codel Packet Scheduling
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NET_SCH_DEFAULT = yes;
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DEFAULT_FQ_CODEL = yes;
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# Preempt (low-latency)
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PREEMPT = lib.mkOverride 60 yes;
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PREEMPT_VOLUNTARY = lib.mkOverride 60 no;
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# Preemptible tree-based hierarchical RCU
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TREE_RCU = yes;
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PREEMPT_RCU = yes;
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RCU_EXPERT = yes;
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TREE_SRCU = yes;
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TASKS_RCU_GENERIC = yes;
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TASKS_RCU = yes;
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TASKS_RUDE_RCU = yes;
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TASKS_TRACE_RCU = yes;
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RCU_STALL_COMMON = yes;
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RCU_NEED_SEGCBLIST = yes;
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RCU_FANOUT = freeform "64";
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RCU_FANOUT_LEAF = freeform "16";
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RCU_BOOST = yes;
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RCU_BOOST_DELAY = option (freeform "500");
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RCU_NOCB_CPU = yes;
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RCU_LAZY = yes;
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RCU_DOUBLE_CHECK_CB_TIME = yes;
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# BFQ I/O scheduler
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IOSCHED_BFQ = lib.mkOverride 60 yes;
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# Futex WAIT_MULTIPLE implementation for Wine / Proton Fsync.
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FUTEX = yes;
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FUTEX_PI = yes;
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# NT synchronization primitive emulation
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NTSYNC = yes;
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# Preemptive Full Tickless Kernel at 1000Hz
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HZ = freeform "1000";
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HZ_1000 = yes;
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}
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// lib.optionalAttrs (isLqx) {
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# Google's BBRv3 TCP congestion Control
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TCP_CONG_BBR = yes;
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DEFAULT_BBR = yes;
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# PDS Process Scheduler
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SCHED_ALT = yes;
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SCHED_PDS = yes;
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# https://github.com/damentz/liquorix-package/commit/a7055b936c0f4edb8f6afd5263fe1d2f8a5cd877
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RCU_BOOST = no;
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RCU_LAZY = lib.mkOverride 60 no;
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# Swap storage is compressed with LZ4 using zswap
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ZSWAP_COMPRESSOR_DEFAULT_LZ4 = lib.mkOptionDefault yes;
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ZSWAP_COMPRESSOR_DEFAULT_ZSTD = lib.mkDefault no;
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# Fix error: unused option: XXX.
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CFS_BANDWIDTH = lib.mkForce (option no);
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PSI = lib.mkForce (option no);
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RT_GROUP_SCHED = lib.mkForce (option no);
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SCHED_AUTOGROUP = lib.mkForce (option no);
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SCHED_CORE = lib.mkForce (option no);
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UCLAMP_TASK = lib.mkForce (option no);
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UCLAMP_TASK_GROUP = lib.mkForce (option no);
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};
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passthru.updateScript = [
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./update-zen.py
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(if isLqx then "lqx" else "zen")
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];
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extraMeta = {
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branch = lib.versions.majorMinor version + "/master";
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maintainers = with lib.maintainers; [
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thiagokokada
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jerrysm64
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];
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description =
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"Built using the best configuration and kernel sources for desktop, multimedia, and gaming workloads."
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+ lib.optionalString isLqx " (Same as linux_zen, but less aggressive release schedule and additional extra config)";
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broken = stdenv.hostPlatform.isAarch64;
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};
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}
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// (args.argsOverride or { })
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);
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in
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zenKernelsFor variants.${variant}
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