Reference

Example of text shown in Debug window:

Premature 'END' found after only 787 lines in 'ui\jkstrings.uni'. 
Check number in 'MSG xxx' header.
Premature 'END' found after only 25 lines in 'misc\sithStrings.uni'. 
Check number in 'MSG xxx' header.
Premature 'END' found after only 187 lines in 'ui\cutStrings.uni'. 
Check number in 'MSG xxx' header.
Premature 'END' found after only 451 lines in 'ui\credits.uni'. 
Check number in 'MSG xxx' header.

Example text listed in Jedi Console:

0.000000 seconds to parse section copyright.
0.000000 seconds to parse section header.
0.000000 seconds to parse section sounds.
0.000000 seconds to parse section materials.
0.078000 seconds to parse section soundclass.
0.953000 seconds to parse section models.
0.016000 seconds to parse section sprites.
0.000000 seconds to parse section keyframes.
0.187000 seconds to parse section animclass.
0.000000 seconds to parse section cogscripts.
0.000000 seconds to parse section cogs. 

When using either the command line switch or the console command, dispstats will display two lines of text at the top of the screen in-game:

XX.XXX [XXX%]f Xs Xa Xz Xp X curSector X fo
force: XXX, item: none, force: none,

XX.XXX [XXX%]f: (framerate)
The number outside brackets is the floating point number 
for framerate or frames per second. 
The number inside brackets is the percentage 
that the current framerate is of the maximum framerate. 
 Xs: (sectors)
The count of sectors that JK is rendering.
Xa: (architecture)
The count of architecture things that JK is rendering (0x8 TF).
Xz: 
The count of thing models that JK is rendering.
Xp: (polygons)
The count of surfaces that JK is rendering.
X curSector: 
The current sector that the player is in.
X fo: (freed objects)
The count of unused thing "slots" in the level's thing array. 
E.g., if the level has a thing limit of 200, and the level has only a player 
and a stormtrooper in it, then this number will be 198.
force: XXX: 
The mana (amount of force power) that the player has.
item: none: 
The item that the player has selected.
force: none: 
The force power that the player has selected.