系统：你对我做了什么？！

NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS FSTYPE
sda           8:0    0   3.6T  0 disk             
└─sda1        8:1    0   3.6T  0 part /mnt/data   xfs
zram0       253:0    0  30.5G  0 disk [SWAP]      swap
nvme0n1     259:0    0 931.5G  0 disk             
├─nvme0n1p1 259:1    0     2G  0 part /boot       vfat
└─nvme0n1p2 259:2    0 929.5G  0 part /home       btrfs
                                      / 

# /dev/nvme0n1p2
UUID=a0b762a5-a99d-4d46-81d8-b10aa8620fa4	/         	btrfs     	rw,relatime,ssd,discard=async,compress-force=zstd:3,space_cache=v2,subvol=/@	0 0

UUID=a0b762a5-a99d-4d46-81d8-b10aa8620fa4	/home         	btrfs     	rw,relatime,ssd,discard=async,compress-force=zstd:3,space_cache=v2,subvol=/@home	0 0

# /dev/nvme0n1p1
UUID=A4FB-3831      	/boot     	vfat      	rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro	0 2

# /dev/sda1
UUID=6dda4ef6-5539-425b-9e17-0a374910721b	/mnt/data 	xfs       	rw,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota	0 2

sudo pacman -S btrfs-progs

sudo systemctl enable [email protected]
sudo systemctl start [email protected]

sudo pacman -S btrfs-assistant

sudo btrfs balance start --bg /
sudo btrfs balance status /

sudo btrfs fi us /

sudo pacman -S xfsprogs

sudo xfs_db -c frag -r /dev/sda1

sudo xfs_fsr /dev/sda1

sudo xfs_info /mnt/data

sudo pacman -S zram-generator

[zram0]
zram-size = ram
compression-algorithm = lz4

sudo pacman -S earlyoom
sudo systemctl enable --now earlyoom

# 32G Ram + Zram(lz4) + Nvme SSD

# Contains, as bytes, the number of pages at which a process which is
# generating disk writes will itself start writing out dirty data.
vm.dirty_bytes = 536870912    # 512MB

# Contains, as bytes, the number of pages at which the background kernel
# flusher threads will start writing out dirty data.
vm.dirty_background_bytes = 134217728  # 128MB

# Decreasing the virtual file system (VFS) cache parameter value
# may improve system responsiveness (default 100)
vm.vfs_cache_pressure = 50

# The sysctl swappiness parameter determines the kernel's preference for pushing anonymous pages or page cache to disk in memory-starved situations.
# A low value causes the kernel to prefer freeing up open files (page cache), a high value causes the kernel to try to use swap space,
# For in-memory swap, like zram or zswap, as well as hybrid setups that have swap on faster devices than the filesystem, values beyond 100 can be considered.
vm.swappiness = 150

# page-cluster controls the number of pages up to which consecutive pages are read in from swap in a single attempt.
# This is the swap counterpart to page cache readahead. The mentioned consecutivity is not in terms of virtual/physical addresses,
# but consecutive on swap space - that means they were swapped out together. (Default is 3)
# increase this value to 1 or 2 if you are using physical swap (1 if ssd, 2 if hdd)
vm.page-cluster = 0

sudo pacman -S profile-sync-daemon
sudo systemctl enable --now power-profiles-daemon.service

[cachyos-znver4]
Include = /etc/pacman.d/cachyos-v4-mirrorlist

[cachyos-core-znver4]
Include = /etc/pacman.d/cachyos-v4-mirrorlist

[cachyos-extra-znver4]
Include = /etc/pacman.d/cachyos-v4-mirrorlist

[core]
Include = /etc/pacman.d/mirrorlist

[extra]
Include = /etc/pacman.d/mirrorlist

[multilib]
Include = /etc/pacman.d/mirrorlist

[archlinuxcn]
Include = /etc/pacman.d/archlinuxcn-mirrorlist

[arch4edu]
Server = https://mirrors.tuna.tsinghua.edu.cn/arch4edu/$arch

[chaotic-aur]
Include = /etc/pacman.d/chaotic-mirrorlist

CFLAGS="-march=native -mtune=native -O2 -pipe -fno-plt -fexceptions \
        -Wp,-D_FORTIFY_SOURCE=3 -Wformat -Werror=format-security \
        -fstack-clash-protection -fcf-protection \
        -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer"
CXXFLAGS="$CFLAGS -Wp,-D_GLIBCXX_ASSERTIONS"
RUSTFLAGS="-C opt-level=3 -C target-cpu=native -C link-arg=-z -C link-arg=pack-relative-relocs"
MAKEFLAGS="-j$(nproc) -l$(nproc)"

sudo pacman -S ananicy-cpp cachyos-ananicy-rules-git
systemctl enable --now ananicy-cpp.service

sudo pacman -S proton-cachyos

sudo pacman -S bpftune-git
systemctl enable --now bpftune.service

ACTION=="add|change", SUBSYSTEM=="usb", DRIVERS=="usb", ATTRS{idVendor}=="046d", ATTRS{idProduct}=="c53f", ATTR{power/wakeup}="disabled"

sudo pacman -S pacman-contrib
sudo systemctl enable --now paccache.timer

[General]

DisplayServer=wayland

GreeterEnvironment=QT_WAYLAND_SHELL_INTEGRATION=layer-shell


[Wayland]

CompositorCommand=kwin_wayland --drm --no-lockscreen --no-global-shortcuts --locale1

cp /etc/xdg/autostart/org.kde.discover.notifier.desktop ~/.config/autostart/

flatpak --user remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
flatpak --user install flathub com.valvesoftware.Steam

# subvolume to snapshot
SUBVOLUME="/"

# filesystem type
FSTYPE="btrfs"


# btrfs qgroup for space aware cleanup algorithms
QGROUP=""


# fraction or absolute size of the filesystems space the snapshots may use
SPACE_LIMIT="0.2"

# fraction or absolute size of the filesystems space that should be free
FREE_LIMIT="0.3"


# users and groups allowed to work with config
ALLOW_USERS="zhui"
ALLOW_GROUPS=""

# sync users and groups from ALLOW_USERS and ALLOW_GROUPS to .snapshots
# directory
SYNC_ACL="no"


# start comparing pre- and post-snapshot in background after creating
# post-snapshot
BACKGROUND_COMPARISON="yes"


# run daily number cleanup
NUMBER_CLEANUP="yes"

# limit for number cleanup
NUMBER_MIN_AGE="3600"
NUMBER_LIMIT="30"
NUMBER_LIMIT_IMPORTANT="5"


# create hourly snapshots
TIMELINE_CREATE="yes"

# cleanup hourly snapshots after some time
TIMELINE_CLEANUP="yes"

# limits for timeline cleanup
TIMELINE_MIN_AGE="1800"
TIMELINE_LIMIT_HOURLY="5"
TIMELINE_LIMIT_DAILY="7"
TIMELINE_LIMIT_WEEKLY="0"
TIMELINE_LIMIT_MONTHLY="0"
TIMELINE_LIMIT_QUARTERLY="0"
TIMELINE_LIMIT_YEARLY="0"


# cleanup empty pre-post-pairs
EMPTY_PRE_POST_CLEANUP="yes"

# limits for empty pre-post-pair cleanup
EMPTY_PRE_POST_MIN_AGE="3600"

sudo pacman -S snap-pac
sudo systemctl enable --now snapper-timeline.timer
sudo systemctl enable --now snapper-cleanup.timer