A new XanMod Linux Kernel based on the latest Linux Kernel 5.13 has been released. XanMod is a general-purpose Linux kernel distribution with custom settings and new features. The real-time version is recommended for critical runtime applications such as Linux gaming eSports, streaming, live productions and ultra-low latency enthusiasts.

XanMod is a general-purpose Linux kernel distribution with custom settings and new features. Built to provide a stable, responsive and smooth desktop experience.

The real-time version is recommended for critical runtime applications such as Linux gaming eSports, streaming, live productions and ultra-low latency enthusiasts.

Supports all recent 64-bit versions of Debian and Ubuntu-based systems.

Main Features

• Preemptive Full Tickless Kernel at 500Hz w/ Tuned CPU Core Scheduler.
• RCU Boost for better responsiveness and lower overall system latency.
• Block Layer w/ multi-threaded runqueue for high I/O throughput.
• Caching, Virtual Memory Manager and CPUFreq Governor improvements.
• BBR TCP Congestion Control + FQ-PIE Packet Scheduling and AQM Algorithm [5.8].
• ORC Unwinder for Kernel Stack Traces (debuginfo) implementation.
• Third-party patchset available: ZSTD kernel, initrd and modules support [5.8][5.6-rt], Full x86_64 FSGSBASE instructions [5.8], Clear Linux [partial], CK's Hrtimer Patchset [5.8][5.4], Wine / Proton Fsync, PCIe ACS Override, BMQ Process Scheduler [5.4 stock disabled], Aufs [5.4] and GCC graysky's.
• Real-time Linux kernel (PREEMPT_RT) build available [5.6-rt][5.4-rt].
• Generic kernel package for compatibility with most Debian & Ubuntu based distributions. Built on the latest GCC 10.2 and Binutils 2.35.
• GPLv2 license. Can be built for any distribution or purpose.

Install via Terminal

echo 'deb  http://deb.xanmod.org releases main' | sudo tee /etc/apt/sources.list.d/xanmod-kernel.list && wget -qO -  https://dl.xanmod.org/gpg.key | sudo apt-key add -

Then update and install:

sudo apt update && sudo apt install linux-xanmod

Reboot.

Meta packages available: linux-xanmod, linux-xanmod-edge, linux-xanmod-lts, linux-xanmod-rt-edge and linux-xanmod-rt.

To try without adding the repository

Download from Sourceforge and install:
https://sourceforge.net/projects/xanmod/files/

1. In terminal:

   sudo dpkg -i linux-image-*xanmod*.deb linux-headers-*xanmod*.deb

2. Reboot.

• Check it:

  cat /proc/version

* linux-firmware-image package is optional

Linux 5.13.0-xanmod1

• 60fc05c Linux 5.13.0-xanmod1
• a543c78 futex2: Add sysfs entry for syscall numbers
• cda39e4 kernel: Enable waitpid() for futex2
• ea28e42 perf bench: Add futex2 benchmark tests
• b210ef8 selftests: futex2: Add requeue test
• 89340f2 selftests: futex2: Add waitv test
• ccd8ae7 selftests: futex2: Add wouldblock test
• 5ba67bd selftests: futex2: Add timeout test
• 96e0a14 selftests: futex2: Add wake/wait test
• 641c681 docs: locking: futex2: Add documentation
• f156016 futex2: Add compatibility entry point for x86_x32 ABI
• 39b86f9 futex2: Implement requeue operation
• 59c86f9 futex2: Implement vectorized wait
• b5384dd futex2: Add support for shared futexes
• 4f95b45 futex2: Implement wait and wake functions
• 74c1627 MAINTAINERS: Add a new entry for the Brute LSM
• 9f7c258 Documentation: Add documentation for the Brute LSM
• 6879907 selftests/brute: Add tests for the Brute LSM
• 1efb7f3 security/brute: Notify to userspace "task killed"
• ae4be95 security/brute: Mitigate a brute force attack
• f60567c security/brute: Detect a brute force attack
• 2d334e7 security/brute: Define a LSM and add sysctl attributes
• 6542176 security: Add LSM hook at the point where a task gets a fatal signal
• 3067105 fs/ntfs3: Fix unsupported flags by clang ( #146)
• 88e07a5 fs/ntfs3: Add MAINTAINERS
• 7c9d02b fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile
• b89232d fs/ntfs3: Add Kconfig, Makefile and doc
• 266408f fs/ntfs3: Add NTFS journal
• af78fb4 fs/ntfs3: Add compression
• e52b064 fs/ntfs3: Add attrib operations
• 2eca3e5 fs/ntfs3: Add file operations and implementation
• 885829d fs/ntfs3: Add bitmap
• 0737d42 fs/ntfs3: Add initialization of super block
• 77a12f7 fs/ntfs3: Add headers and misc files
• c3a3081 mm/vmscan: add sysctl knobs for protecting clean cache
• 13254ef mm: multigenerational lru: documentation
• 7585161 mm: multigenerational lru: Kconfig
• 5f940f6 mm: multigenerational lru: user interface
• 48f06a6 mm: multigenerational lru: eviction
• 2f9e3a8 mm: multigenerational lru: aging
• f537af6 mm: multigenerational lru: mm_struct list
• 6726876 mm: multigenerational lru: activation
• 7c0e13b mm: multigenerational lru: groundwork
• d4b7b40 mm/workingset.c: refactor pack_shadow() and unpack_shadow()
• 1a7d050 mm/vmscan.c: refactor shrink_node()
• 1ed1d52 mm, x86: support the access bit on non-leaf PMD entries
• ca9c490 include/linux/cgroup.h: export cgroup_mutex
• f65854f include/linux/nodemask.h: define next_memory_node() if !CONFIG_NUMA
• f6a5ac2 include/linux/memcontrol.h: do not warn in page_memcg_rcu() if !CONFIG_MEMCG
• 32cbb00 x86/kconfig: more uarches for kernel 5.8+
• e0b3974 init: wait for partition and retry scan
• 0982783 drivers: initialize ata before graphics
• fe8e758 locking: rwsem: spin faster
• 22a10a4 firmware: Enable stateless firmware loading
• bbf1b81 intel_rapl: Silence rapl trace debug
• 2fbd4c7 SAUCE: binder: give binder_alloc its own debug mask file
• 90709f2 SAUCE: binder: turn into module
• 4422e94 SAUCE: ashmem: turn into module
• a217900 sysctl: add sysctl to disallow unprivileged CLONE_NEWUSER by default
• 7e6cf37 pci: Enable overrides for missing ACS capabilities
• 26424c5 net-tcp_bbr: v2: don't assume prior_cwnd was set entering CA_Loss
• fe92fc6 net-tcp_bbr: v2: remove cycle_rand parameter that is unused in BBRv2
• cb1802b net-tcp_bbr: v2: remove field bw_rtts that is unused in BBRv2
• 95c333a net-tcp_bbr: v2: remove unnecessary rs.delivered_ce logic upon loss
• 6d1fea1 net-tcp_bbr: v2: BBRv2 ("bbr2") congestion control for Linux TCP
• 18fc2c8 net-tcp: add fast_ack_mode=1: skip rwin check in tcp_fast_ack_mode__tcp_ack_snd_check()
• 3feef54 net-tcp: re-generalize TSO sizing in TCP CC module API
• 5d925d3 net-tcp: add new ca opts flag TCP_CONG_WANTS_CE_EVENTS
• 0d84776 net-tcp_bbr: v2: set tx.in_flight for skbs in repair write queue
• 3556006 net-tcp_bbr: v2: adjust skb tx.in_flight upon split in tcp_fragment()
• 579c6a9 net-tcp_bbr: v2: adjust skb tx.in_flight upon merge in tcp_shifted_skb()
• 7682178 net-tcp_bbr: v2: factor out tx.in_flight setting into tcp_set_tx_in_flight()
• 9d5d2ca net-tcp_bbr: v2: introduce ca_ops->skb_marked_lost() CC module callback API
• 2567ef4 net-tcp_bbr: v2: export FLAG_ECE in rate_sample.is_ece
• ec58ebd net-tcp_bbr: v2: count packets lost over TCP rate sampling interval
• 7cda445 net-tcp_bbr: v2: snapshot packets in flight at transmit time and pass in rate_sample
• 0afe1df net-tcp_bbr: v2: shrink delivered_mstamp, first_tx_mstamp to u32 to free up 8 bytes
• 0b6885b net-tcp_rate: account for CE marks in rate sample
• 7ef2681 net-tcp_rate: consolidate inflight tracking approaches in TCP
• 39b2406 net-tcp_bbr: broaden app-limited rate sample detection
• af3f13d clockevents, hrtimer: Make hrtimer granularity and minimum hrtimeout configurable in sysctl. Set default granularity to 100us and min timeout to 500us
• 1e6491a time: Don't use hrtimer overlay when pm_freezing since some drivers still don't correctly use freezable timeouts.
• c885e05 hrtimer: Replace all calls to schedule_timeout_uninterruptible of potentially under 50ms to use schedule_msec_hrtimeout_uninterruptible
• 566dae0 hrtimer: Replace all calls to schedule_timeout_interruptible of potentially under 50ms to use schedule_msec_hrtimeout_interruptible.
• cdc128e hrtimer: Replace all schedule timeout(1) with schedule_min_hrtimeout()
• 2362167 timer: Convert msleep to use hrtimers when active.
• 3805e10 time: Special case calls of schedule_timeout(1) to use the min hrtimeout of 1ms, working around low Hz resolutions.
• 014af16 hrtimer: Create highres timeout variants of schedule_timeout functions.
• 83d8887 XANMOD: fair: Remove all energy efficiency functions
• 6e7b703 XANMOD: Makefile: Turn off loop vectorization for GCC -O3 optimization level
• 34c89a0 XANMOD: init/Kconfig: Enable -O3 KBUILD_CFLAGS optimization for all architectures
• aa8e8f2 XANMOD: lib/kconfig.debug: disable default CONFIG_SYMBOLIC_ERRNAME and CONFIG_DEBUG_BUGVERBOSE
• 3f92fd7 XANMOD: scripts: disable the localversion "+" tag of a git repo
• eed16a1 XANMOD: cpufreq: tunes ondemand and conservative governor for performance
• 4c03c7b XANMOD: mm/vmscan: vm_swappiness = 30 decreases the amount of swapping
• 5c255f6 XANMOD: sched/autogroup: Add kernel parameter and config option to enable/disable autogroup feature by default
• 0d114ea XANMOD: dcache: cache_pressure = 50 decreases the rate at which VFS caches are reclaimed
• 4498440 XANMOD: kconfig: set PREEMPT and RCU_BOOST without delay by default
• ab3a0ab XANMOD: kconfig: add 500Hz timer interrupt kernel config option
• 149a5b5 XANMOD: block: set rq_affinity to force full multithreading I/O requests
• 3a070a8 XANMOD: block, bfq: change BLK_DEV_ZONED depends to IOSCHED_BFQ
• 72f33c3 XANMOD: elevator: set default scheduler to bfq for blk-mq
• 62fb987 Linux 5.13

Homepage
Download Linux 5.13.0-xanmod1 source from GitHub