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Maximum Number of Open Windows under Windows?

Triones asks: "I have found that Windows 2000 has a limit on the number of distinct windows that can be opened. W2K cannot open more than around 70 distinct windows (duplicate IE's on the same url don't count) even when it has 50Mb free phyiscal memory and much more in system cache. The max I can get is about 75 windows. Similar limits on machines with 256Mb or 512Mb ram. Some of my friends have reproduced this phenomenon on their systems. (By the way, no such problem with Linux (Redhat, XFree86, Gnome, Sawfish)). Is it related to the graphics 'resource' (GDI?) in Windows? Is there a parameter that can be tuned to increase the limit? If this is a 'flaw', is it fixed in XP?"

1 of 34 comments (clear)

  1. 90 for me by Red+Moose · · Score: 2, Insightful
    I know that each instance of IE needs around 10-15 MB, and bad resource management like that - stealing RAM and swap for each app instance no matter what it's used for - contributes.

    OK, I just opened 90 Notepads. Only 128MB RAM, on Windows 98SE. I guess Notepad isn't IE.

    Also, on linux, I was under the impression that the virtual terminals *were* limited - when you compile a kernel the default is 256 ptys; I may just be utterly wrong here, but I thought that meant there was a 256 virtual terminal limit. I would presume it also applies to X - but does X open all of it's stuff in a single console terminal?

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    Acting stupid isn't much fun when there's someone around who knows better