chore: optimize memory usage of tcell library on init

[smira]

There are two changes here:

• build machined binary with tcell_minimal tag (which disables loading some parts of the terminfo database), which also affects apid, trustd and dashboard processes, as they run from the same executable; in dashboard explicitly import linux terminal we're using when the dashboard runs on the machine
• pass TCELL_MINIMIZE=1 environment variable to each Talos process which removes 0.5MiB of runewdith allocation for a lookup table

See #7578

[smira]

Final allocs on init:

init github.com/gdamore/tcell/v2/terminfo @19 ms, 0 ms clock, 64 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/a/ansi @19 ms, 0.002 ms clock, 3280 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt100 @19 ms, 0.001 ms clock, 3088 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt102 @19 ms, 0 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt220 @19 ms, 0.001 ms clock, 3088 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/x/xterm @19 ms, 0.014 ms clock, 12944 bytes, 8 allocs
init github.com/gdamore/tcell/v2 @19 ms, 0.044 ms clock, 25584 bytes, 29 allocs
init github.com/gdamore/tcell/v2/terminfo/l/linux @19 ms, 0.004 ms clock, 3072 bytes, 1 allocs

with tcell_minimal build tag, but without TCELL_MINIMIZE=1:

init github.com/gdamore/tcell/v2/terminfo @17 ms, 0 ms clock, 64 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/a/ansi @17 ms, 0.004 ms clock, 3280 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt100 @17 ms, 0 ms clock, 3088 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt102 @17 ms, 0 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt220 @17 ms, 0.007 ms clock, 3088 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/x/xterm @17 ms, 0.008 ms clock, 12736 bytes, 7 allocs
init github.com/gdamore/tcell/v2 @17 ms, 21 ms clock, 582400 bytes, 28 allocs

with main branch:

init github.com/gdamore/tcell/v2/terminfo @15 ms, 0 ms clock, 64 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/a/aixterm @15 ms, 0.002 ms clock, 3280 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/a/alacritty @15 ms, 0.001 ms clock, 6144 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/a/ansi @15 ms, 0.001 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/b/beterm @15 ms, 0.001 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/c/cygwin @15 ms, 0.001 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/d/dtterm @15 ms, 0 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/e/emacs @15 ms, 0.002 ms clock, 6560 bytes, 3 allocs
init github.com/gdamore/tcell/v2/terminfo/f/foot @15 ms, 0.001 ms clock, 3088 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/g/gnome @15 ms, 0.005 ms clock, 6352 bytes, 3 allocs
init github.com/gdamore/tcell/v2/terminfo/h/hpterm @15 ms, 0.002 ms clock, 3984 bytes, 3 allocs
init github.com/gdamore/tcell/v2/terminfo/k/konsole @15 ms, 0.001 ms clock, 6144 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/k/kterm @15 ms, 0.001 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/l/linux @15 ms, 0.001 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/p/pcansi @15 ms, 0 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/r/rxvt @15 ms, 0.005 ms clock, 15360 bytes, 5 allocs
init github.com/gdamore/tcell/v2/terminfo/s/screen @15 ms, 0.002 ms clock, 7936 bytes, 3 allocs
init github.com/gdamore/tcell/v2/terminfo/s/simpleterm @15 ms, 0.001 ms clock, 6144 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/s/sun @15 ms, 0.003 ms clock, 6176 bytes, 3 allocs
init github.com/gdamore/tcell/v2/terminfo/t/termite @15 ms, 0 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/t/tmux @15 ms, 0.001 ms clock, 6144 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt100 @15 ms, 0.003 ms clock, 3088 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt102 @15 ms, 0 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt220 @15 ms, 0 ms clock, 3088 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt320 @15 ms, 0.007 ms clock, 3088 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt400 @15 ms, 0.001 ms clock, 3104 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt420 @15 ms, 0.001 ms clock, 3280 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/v/vt52 @15 ms, 0 ms clock, 3280 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/w/wy50 @15 ms, 0.001 ms clock, 3088 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/w/wy60 @15 ms, 0.001 ms clock, 3088 bytes, 2 allocs
init github.com/gdamore/tcell/v2/terminfo/w/wy99_ansi @15 ms, 0.003 ms clock, 10264 bytes, 4 allocs
init github.com/gdamore/tcell/v2/terminfo/x/xfce @15 ms, 0.001 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/x/xterm @15 ms, 0.004 ms clock, 12320 bytes, 6 allocs
init github.com/gdamore/tcell/v2/terminfo/x/xterm_kitty @15 ms, 0.001 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/x/xterm_termite @15 ms, 0.001 ms clock, 3072 bytes, 1 allocs
init github.com/gdamore/tcell/v2/terminfo/dynamic @15 ms, 0 ms clock, 16 bytes, 1 allocs
init github.com/gdamore/tcell/v2 @15 ms, 17 ms clock, 582968 bytes, 30 allocs

The code which deactivates with the env variable: https://github.com/gdamore/tcell/blob/47ec3a77754f83e84481fc9cdd0bc2072cd292ba/cell.go#L195-L201

[DmitriyMV]

🆒

744912 bytes before. 54192 bytes after.

[smira]

744912 bytes before. 54192 bytes after.

and also -21ms startup time (out of full 34ms).

[smira]

/m