So this afternoon I generate a file around 497MB. After opening the file in Sublime I notice extremely high memory usage, after the file finished loading memory peaked at approximately 4.8GB. The same file opened in notepad and notepad++ peaked at approximately 1GB.
As a simple test I generate a few more files with sizes around 50MB, 205MB, and 377MB. For each file Sublime used memory around ten times the file size, while notepad++ peaked around double the file size. this was tested on a fresh install of Sublime Text 2.
After a quick search on their forums I didn't see anything similar so I will probably post this there. I was just interested if anyone has experienced this.
Sublime Text 3 seems to be the same. Can anyone else verify this for me?
I should also note this is on Windows 7 64.