[Help] picom uses 1 GiB of RAM on Xorg

Platform

Arch Linux x86_64, Kernel: 6.3.9-arch1-1

GPU, drivers, and screen setup

NVIDIA GeForce RTX 2080 Ti Rev. A Driver: extra/nvidia 535.54.03-3 installed with pacman Single DELL E2214H (1920x1080 @ 60Hz) monitor connected with display-port

Environment

wm: i3 with i3status started directly from tty (startx)

picom version

vgit-b700a

Diagnostics

**Version:** vgit-b700a ### Extensions: * Shape: Yes * XRandR: Yes * Present: Present ### Misc: * Use Overlay: Yes * Config file used: /home/kenryus/.config/picom/picom.conf ### Drivers (inaccurate): NVIDIA ### Backend: glx * Driver vendors: * GLX: NVIDIA Corporation * GL: NVIDIA Corporation * GL renderer: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 ### Backend: egl * Driver vendors: * EGL: NVIDIA * GL: NVIDIA Corporation * GL renderer: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2

Configuration:

Configuration file

#### picom: ``` ################################# # Shadows # ################################# # Enabled client-side shadows on windows. Note desktop windows # (windows with '_NET_WM_WINDOW_TYPE_DESKTOP') never get shadow, # unless explicitly requested using the wintypes option. # shadow = false #shadow = true; # The blur radius for shadows, in pixels. (defaults to 12) # shadow-radius = 12 shadow-radius = 12; # The opacity of shadows. (0.0 - 1.0, defaults to 0.75) shadow-opacity = .75 # The left offset for shadows, in pixels. (defaults to -15) # shadow-offset-x = -15 shadow-offset-x = -7; # The top offset for shadows, in pixels. (defaults to -15) # shadow-offset-y = -15 shadow-offset-y = -7; # Red color value of shadow (0.0 - 1.0, defaults to 0). # shadow-red = 0 # Green color value of shadow (0.0 - 1.0, defaults to 0). # shadow-green = 0 # Blue color value of shadow (0.0 - 1.0, defaults to 0). # shadow-blue = 0 # Hex string color value of shadow (#000000 - #FFFFFF, defaults to #000000). This option will override options set shadow-(red/green/blue) # shadow-color = "#000000" # Specify a list of conditions of windows that should have no shadow. # # examples: # shadow-exclude = "n:e:Notification"; # # shadow-exclude = [] shadow-exclude = [ "name = 'Notification'", "class_g = 'Conky'", "class_g ?= 'Notify-osd'", "class_g = 'Cairo-clock'", "_GTK_FRAME_EXTENTS@:c" ]; # Specify a list of conditions of windows that should have no shadow painted over, such as a dock window. # clip-shadow-above = [] # Specify a X geometry that describes the region in which shadow should not # be painted in, such as a dock window region. Use # shadow-exclude-reg = "x10+0+0" # for example, if the 10 pixels on the bottom of the screen should not have shadows painted on. # # shadow-exclude-reg = "" # Crop shadow of a window fully on a particular monitor to that monitor. This is # currently implemented using the X RandR extension. # crop-shadow-to-monitor = false ################################# # Fading # ################################# # Fade windows in/out when opening/closing and when opacity changes, # unless no-fading-openclose is used. # fading = false fading = true; # Opacity change between steps while fading in. (0.01 - 1.0, defaults to 0.028) # fade-in-step = 0.028 fade-in-step = 0.03; # Opacity change between steps while fading out. (0.01 - 1.0, defaults to 0.03) # fade-out-step = 0.03 fade-out-step = 0.03; # The time between steps in fade step, in milliseconds. (> 0, defaults to 10) fade-delta = 9 # Specify a list of conditions of windows that should not be faded. # fade-exclude = [] # Do not fade on window open/close. # no-fading-openclose = false # Do not fade destroyed ARGB windows with WM frame. Workaround of bugs in Openbox, Fluxbox, etc. # no-fading-destroyed-argb = false ################################# # Transparency / Opacity # ################################# # Opacity of inactive windows. (0.1 - 1.0, defaults to 1.0) # inactive-opacity = 1 inactive-opacity = 0.9; # Opacity of window titlebars and borders. (0.1 - 1.0, disabled by default) # frame-opacity = 1.0 frame-opacity = 0.9; # Let inactive opacity set by -i override the '_NET_WM_WINDOW_OPACITY' values of windows. # inactive-opacity-override = true inactive-opacity-override = false; # Default opacity for active windows. (0.0 - 1.0, defaults to 1.0) # active-opacity = 1.0 # Dim inactive windows. (0.0 - 1.0, defaults to 0.0) # inactive-dim = 0.0 # Specify a list of conditions of windows that should never be considered focused. # focus-exclude = [] focus-exclude = [ "class_g = 'Cairo-clock'", "class_g = 'Conky'" ]; # Use fixed inactive dim value, instead of adjusting according to window opacity. # inactive-dim-fixed = 1.0 # Specify a list of opacity rules, in the format `PERCENT:PATTERN`, # like `50:name *= "Firefox"`. picom-trans is recommended over this. # Note we don't make any guarantee about possible conflicts with other # programs that set '_NET_WM_WINDOW_OPACITY' on frame or client windows. # example: # opacity-rule = [ "80:class_g = 'URxvt'" ]; # # opacity-rule = [] ################################# # Corners # ################################# # Sets the radius of rounded window corners. When > 0, the compositor will # round the corners of windows. Does not interact well with # `transparent-clipping`. corner-radius = 12 # Exclude conditions for rounded corners. rounded-corners-exclude = [ "window_type = 'dock'", "window_type = 'desktop'", "class_g = 'Conky'" ]; ################################# # Background-Blurring # ################################# # Parameters for background blurring, see the *BLUR* section for more information. # blur-method = # blur-size = 12 # # blur-deviation = false # # blur-strength = 5 # Blur background of semi-transparent / ARGB windows. # Bad in performance, with driver-dependent behavior. # The name of the switch may change without prior notifications. # # blur-background = false # Blur background of windows when the window frame is not opaque. # Implies: # blur-background # Bad in performance, with driver-dependent behavior. The name may change. # # blur-background-frame = false # Use fixed blur strength rather than adjusting according to window opacity. # blur-background-fixed = false # Specify the blur convolution kernel, with the following format: # example: # blur-kern = "5,5,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1"; # # blur-kern = "" blur-kern = "3x3box"; # Exclude conditions for background blur. # blur-background-exclude = [] blur-background-exclude = [ "window_type = 'dock'", "window_type = 'desktop'", "_GTK_FRAME_EXTENTS@:c" ]; ################################# # General Settings # ################################# # Enable remote control via D-Bus. See the man page for more details. # dbus = true # Daemonize process. Fork to background after initialization. Causes issues with certain (badly-written) drivers. # daemon = false # Specify the backend to use: `xrender`, `glx`, `egl` or `xr_glx_hybrid`. # `xrender` is the default one. # # backend = "glx" backend = "xrender"; # Use higher precision during rendering, and apply dither when presenting the # rendered screen. Reduces banding artifacts, but might cause performance # degradation. Only works with OpenGL. dithered-present = false; # Enable/disable VSync. # vsync = false vsync = true; # Enable remote control via D-Bus. See the *D-BUS API* section below for more details. # dbus = false # Try to detect WM windows (a non-override-redirect window with no # child that has 'WM_STATE') and mark them as active. # # mark-wmwin-focused = false mark-wmwin-focused = true; # Mark override-redirect windows that doesn't have a child window with 'WM_STATE' focused. # mark-ovredir-focused = false mark-ovredir-focused = true; # Try to detect windows with rounded corners and don't consider them # shaped windows. The accuracy is not very high, unfortunately. # # detect-rounded-corners = false detect-rounded-corners = true; # Detect '_NET_WM_WINDOW_OPACITY' on client windows, useful for window managers # not passing '_NET_WM_WINDOW_OPACITY' of client windows to frame windows. # # detect-client-opacity = false detect-client-opacity = true; # Use EWMH '_NET_ACTIVE_WINDOW' to determine currently focused window, # rather than listening to 'FocusIn'/'FocusOut' event. Might have more accuracy, # provided that the WM supports it. # # use-ewmh-active-win = false # Unredirect all windows if a full-screen opaque window is detected, # to maximize performance for full-screen windows. Known to cause flickering # when redirecting/unredirecting windows. # # unredir-if-possible = false # Delay before unredirecting the window, in milliseconds. Defaults to 0. # unredir-if-possible-delay = 0 # Conditions of windows that shouldn't be considered full-screen for unredirecting screen. # unredir-if-possible-exclude = [] # Use 'WM_TRANSIENT_FOR' to group windows, and consider windows # in the same group focused at the same time. # # detect-transient = false detect-transient = true; # Use 'WM_CLIENT_LEADER' to group windows, and consider windows in the same # group focused at the same time. This usually means windows from the same application # will be considered focused or unfocused at the same time. # 'WM_TRANSIENT_FOR' has higher priority if detect-transient is enabled, too. # # detect-client-leader = false # Resize damaged region by a specific number of pixels. # A positive value enlarges it while a negative one shrinks it. # If the value is positive, those additional pixels will not be actually painted # to screen, only used in blur calculation, and such. (Due to technical limitations, # with use-damage, those pixels will still be incorrectly painted to screen.) # Primarily used to fix the line corruption issues of blur, # in which case you should use the blur radius value here # (e.g. with a 3x3 kernel, you should use `--resize-damage 1`, # with a 5x5 one you use `--resize-damage 2`, and so on). # May or may not work with *--glx-no-stencil*. Shrinking doesn't function correctly. # # resize-damage = 1 # Specify a list of conditions of windows that should be painted with inverted color. # Resource-hogging, and is not well tested. # # invert-color-include = [] # GLX backend: Avoid using stencil buffer, useful if you don't have a stencil buffer. # Might cause incorrect opacity when rendering transparent content (but never # practically happened) and may not work with blur-background. # My tests show a 15% performance boost. Recommended. # # glx-no-stencil = false # GLX backend: Avoid rebinding pixmap on window damage. # Probably could improve performance on rapid window content changes, # but is known to break things on some drivers (LLVMpipe, xf86-video-intel, etc.). # Recommended if it works. # # glx-no-rebind-pixmap = false # Disable the use of damage information. # This cause the whole screen to be redrawn every time, instead of the part of the screen # has actually changed. Potentially degrades the performance, but might fix some artifacts. # The opposing option is use-damage # # no-use-damage = false use-damage = true; # Use X Sync fence to sync clients' draw calls, to make sure all draw # calls are finished before picom starts drawing. Needed on nvidia-drivers # with GLX backend for some users. # # xrender-sync-fence = false # GLX backend: Use specified GLSL fragment shader for rendering window # contents. Read the man page for a detailed explanation of the interface. # # window-shader-fg = "default" # Use rules to set per-window shaders. Syntax is SHADER_PATH:PATTERN, similar # to opacity-rule. SHADER_PATH can be "default". This overrides window-shader-fg. # # window-shader-fg-rule = [ # "my_shader.frag:window_type != 'dock'" # ] # Force all windows to be painted with blending. Useful if you # have a glx-fshader-win that could turn opaque pixels transparent. # # force-win-blend = false # Do not use EWMH to detect fullscreen windows. # Reverts to checking if a window is fullscreen based only on its size and coordinates. # # no-ewmh-fullscreen = false # Dimming bright windows so their brightness doesn't exceed this set value. # Brightness of a window is estimated by averaging all pixels in the window, # so this could comes with a performance hit. # Setting this to 1.0 disables this behaviour. Requires --use-damage to be disabled. (default: 1.0) # # max-brightness = 1.0 # Make transparent windows clip other windows like non-transparent windows do, # instead of blending on top of them. # # transparent-clipping = false # Specify a list of conditions of windows that should never have transparent # clipping applied. Useful for screenshot tools, where you need to be able to # see through transparent parts of the window. # # transparent-clipping-exclude = [] # Set the log level. Possible values are: # "trace", "debug", "info", "warn", "error" # in increasing level of importance. Case doesn't matter. # If using the "TRACE" log level, it's better to log into a file # using *--log-file*, since it can generate a huge stream of logs. # # log-level = "debug" log-level = "warn"; # Set the log file. # If *--log-file* is never specified, logs will be written to stderr. # Otherwise, logs will to written to the given file, though some of the early # logs might still be written to the stderr. # When setting this option from the config file, it is recommended to use an absolute path. # # log-file = "/path/to/your/log/file" # Show all X errors (for debugging) # show-all-xerrors = false # Write process ID to a file. # write-pid-path = "/path/to/your/log/file" # Window type settings # # 'WINDOW_TYPE' is one of the 15 window types defined in EWMH standard: # "unknown", "desktop", "dock", "toolbar", "menu", "utility", # "splash", "dialog", "normal", "dropdown_menu", "popup_menu", # "tooltip", "notification", "combo", and "dnd". # # Following per window-type options are available: :: # # fade, shadow::: # Controls window-type-specific shadow and fade settings. # # opacity::: # Controls default opacity of the window type. # # focus::: # Controls whether the window of this type is to be always considered focused. # (By default, all window types except "normal" and "dialog" has this on.) # # full-shadow::: # Controls whether shadow is drawn under the parts of the window that you # normally won't be able to see. Useful when the window has parts of it # transparent, and you want shadows in those areas. # # clip-shadow-above::: # Controls whether shadows that would have been drawn above the window should # be clipped. Useful for dock windows that should have no shadow painted on top. # # redir-ignore::: # Controls whether this type of windows should cause screen to become # redirected again after been unredirected. If you have unredir-if-possible # set, and doesn't want certain window to cause unnecessary screen redirection, # you can set this to `true`. # wintypes: { tooltip = { fade = true; shadow = true; opacity = 0.85; focus = true; full-shadow = false; }; dock = { shadow = false; clip-shadow-above = true; } dnd = { shadow = false; } popup_menu = { opacity = 0.95; } dropdown_menu = { opacity = 0.95; } }; ``` #### i3: ``` # This file has been auto-generated by i3-config-wizard(1). # It will not be overwritten, so edit it as you like. # # Should you change your keyboard layout some time, delete # this file and re-run i3-config-wizard(1). # # i3 config file (v4) # # Please see https://i3wm.org/docs/userguide.html for a complete reference! set $mod Mod4 # Font for window titles. Will also be used by the bar unless a different font # is used in the bar {} block below. #font pango:monospace 8 font pango:0xProto 10 # This font is widely installed, provides lots of unicode glyphs, right-to-left # text rendering and scalability on retina/hidpi displays (thanks to pango). #font pango:DejaVu Sans Mono 8 # Start XDG autostart .desktop files using dex. See also # https://wiki.archlinux.org/index.php/XDG_Autostart exec --no-startup-id dex --autostart --environment i3 exec --no-startup-id "~/src/appimg/Superpaper-2.2.1-x86_64.AppImage" #exec --no-startup-id "picom --config ~/.config/picom/picom.conf --use-damage --dbus --vsync" exec --no-startup-id fcitx5 exec --no-startup-id "xrdb -merge ~/.Xresources" exec --no-startup-id /usr/lib/polkit-kde-authentication-agent-1 exec --no-startup-id pipewire-pulse exec --no-startup-id "conky -c ~/.config/conky/config.lua" # The combination of xss-lock, nm-applet and pactl is a popular choice, so # they are included here as an example. Modify as you see fit. # xss-lock grabs a logind suspend inhibit lock and will use i3lock to lock the # screen before suspend. Use loginctl lock-session to lock your screen. exec --no-startup-id xss-lock --transfer-sleep-lock -- i3lock --nofork # NetworkManager is the most popular way to manage wireless networks on Linux, # and nm-applet is a desktop environment-independent system tray GUI for it. exec --no-startup-id nm-applet # Use pactl to adjust volume in PulseAudio. set $refresh_i3status killall -SIGUSR1 i3status bindsym XF86AudioRaiseVolume exec --no-startup-id pactl set-sink-volume @DEFAULT_SINK@ +10% && $refresh_i3status bindsym XF86AudioLowerVolume exec --no-startup-id pactl set-sink-volume @DEFAULT_SINK@ -10% && $refresh_i3status bindsym XF86AudioMute exec --no-startup-id pactl set-sink-mute @DEFAULT_SINK@ toggle && $refresh_i3status bindsym XF86AudioMicMute exec --no-startup-id pactl set-source-mute @DEFAULT_SOURCE@ toggle && $refresh_i3status # Use Mouse+$mod to drag floating windows to their wanted position floating_modifier $mod # move tiling windows via drag & drop by left-clicking into the title bar, # or left-clicking anywhere into the window while holding the floating modifier. tiling_drag modifier titlebar # start a terminal bindsym $mod+Return exec i3-sensible-terminal # kill focused window bindsym $mod+Shift+q kill # kill selected window bindsym $mod+Ctrl+Shift+k exec xkill # start dmenu (a program launcher) #bindsym $mod+d exec --no-startup-id dmenu_run # A more modern dmenu replacement is rofi: bindcode $mod+40 exec "rofi -show drun -theme gruvbox-dark-hard -show-icons -font '0xProto 12'" # There also is i3-dmenu-desktop which only displays applications shipping a # .desktop file. It is a wrapper around dmenu, so you need that installed. # bindcode $mod+40 exec --no-startup-id i3-dmenu-desktop # change focus bindsym $mod+j focus left bindsym $mod+k focus down bindsym $mod+l focus up bindsym $mod+semicolon focus right # alternatively, you can use the cursor keys: bindsym $mod+Left focus left bindsym $mod+Down focus down bindsym $mod+Up focus up bindsym $mod+Right focus right # move focused window bindsym $mod+Shift+j move left bindsym $mod+Shift+k move down bindsym $mod+Shift+l move up bindsym $mod+Shift+semicolon move right # alternatively, you can use the cursor keys: bindsym $mod+Shift+Left move left bindsym $mod+Shift+Down move down bindsym $mod+Shift+Up move up bindsym $mod+Shift+Right move right # split in horizontal orientation bindsym $mod+h split h # split in vertical orientation bindsym $mod+v split v # enter fullscreen mode for the focused container bindsym $mod+f fullscreen toggle # change container layout (stacked, tabbed, toggle split) bindsym $mod+s layout stacking bindsym $mod+w layout tabbed bindsym $mod+e layout toggle split # toggle tiling / floating bindsym $mod+Shift+space floating toggle # change focus between tiling / floating windows bindsym $mod+space focus mode_toggle # focus the parent container bindsym $mod+a focus parent # focus the child container #bindsym $mod+d focus child # Define names for default workspaces for which we configure key bindings later on. # We use variables to avoid repeating the names in multiple places. set $ws1 "1 Terminal" set $ws2 "2 File/Media" set $ws3 "3 Web" set $ws4 "4 Office Works" set $ws5 "5 Coding 1" set $ws6 "6 Coding 2" set $ws7 "7 Coding 3" set $ws8 "8 Gaming" set $ws9 "9 Server" set $ws10 "10 Extra" # switch to workspace bindsym $mod+1 workspace number $ws1 bindsym $mod+2 workspace number $ws2 bindsym $mod+3 workspace number $ws3 bindsym $mod+4 workspace number $ws4 bindsym $mod+5 workspace number $ws5 bindsym $mod+6 workspace number $ws6 bindsym $mod+7 workspace number $ws7 bindsym $mod+8 workspace number $ws8 bindsym $mod+9 workspace number $ws9 bindsym $mod+0 workspace number $ws10 # move focused container to workspace bindsym $mod+Shift+1 move container to workspace number $ws1 bindsym $mod+Shift+2 move container to workspace number $ws2 bindsym $mod+Shift+3 move container to workspace number $ws3 bindsym $mod+Shift+4 move container to workspace number $ws4 bindsym $mod+Shift+5 move container to workspace number $ws5 bindsym $mod+Shift+6 move container to workspace number $ws6 bindsym $mod+Shift+7 move container to workspace number $ws7 bindsym $mod+Shift+8 move container to workspace number $ws8 bindsym $mod+Shift+9 move container to workspace number $ws9 bindsym $mod+Shift+0 move container to workspace number $ws10 # reload the configuration file bindsym $mod+Shift+c reload # restart i3 inplace (preserves your layout/session, can be used to upgrade i3) bindsym $mod+Shift+r restart # exit i3 (logs you out of your X session) bindsym $mod+Shift+e exec "i3-nagbar -t warning -m 'You pressed the exit shortcut. Do you really want to exit i3? This will end your X session.' -B 'Yes, exit i3' 'i3-msg exit'" # resize window (you can also use the mouse for that) mode "resize" { # These bindings trigger as soon as you enter the resize mode # Pressing left will shrink the window’s width. # Pressing right will grow the window’s width. # Pressing up will shrink the window’s height. # Pressing down will grow the window’s height. bindsym j resize shrink width 10 px or 10 ppt bindsym k resize grow height 10 px or 10 ppt bindsym l resize shrink height 10 px or 10 ppt bindsym semicolon resize grow width 10 px or 10 ppt # same bindings, but for the arrow keys bindsym Left resize shrink width 10 px or 10 ppt bindsym Down resize grow height 10 px or 10 ppt bindsym Up resize shrink height 10 px or 10 ppt bindsym Right resize grow width 10 px or 10 ppt # back to normal: Enter or Escape or $mod+r bindsym Return mode "default" bindsym Escape mode "default" bindsym $mod+r mode "default" } bindsym $mod+r mode "resize" gaps inner 8px default_border pixel 0 default_floating_border none hide_edge_borders smart title_align center client.focused #3540a6 #3540a6 #ffffff #a1a1a1 client.focused_inactive #a1a1a1 #1e2454 #ffffff #4d4d4d client.unfocused #a1a1a1 #1e2454 #646464 #4d4d4d client.urgent #cf1d87 #cf1d87 #ffffff #a1a1a1 client.placeholder #000000 #0c0c0c #ffffff #0c0c0c client.background #ffffff popup_during_fullscreen smart # Start i3bar to display a workspace bar (plus the system information i3status # finds out, if available) bar { colors { background #354a8f statusline #ffffff separator #afafaf active_workspace #ffffff #1d2a52 #ffffff inactive_workspace #000000 #3c4561 #8a8a8a urgent_workspace #85a1ff #85a1ff #000000 binding_mode #3faad1 #3faad1 #d16d3f } separator_symbol ":+:" padding 2px position top strip_workspace_numbers yes status_command i3status } ```

Steps of reproduction

In the fresh Arch Linux installation, install i3, xrestop(AUR), and picom
add the picom config at ~/.config/picom/picom.conf
add this line to the i3 config: exec --no-startup-id "picom --config ~/.config/picom/picom.conf --use-damage --dbus --vsync"
start i3 from tty using startx

Expected behavior

When you monitor Xorg memory usage with xrestop, the picom should take most of the memory and keeps growing every event (switch workspaces, create window)

Current Behavior

The picom once used about 1.34 Gib of RAM (on the task manager, the /usr/lib/Xorg used almost 1.38 Gib ~= 97% is used by picom).

Also mysterious thing happened 2 days ago (from this issue opened) that System froze up and fallback to tty. The last moment I saw before crash was i3status reported less than 260 Mib system RAM was available. I suspects that caused by picom bloated RAM usage. I have 32 GB RAM and I didn't launched many graphical programs (Alacritty x2, Firefox, Opera x2, Nemo, Tabby which totaled only 4 GB), so the RAM usage shouldn't be high enough to crash Xorg. Uptime was not that long (less than 2 days) after I started the i3.

In the i3 config provided in this issue, I commented out the section where picom automatically starts to prevent this. Now I'm using i3 without cool effects : (

yshui / picom