Tuesday, October 19, 2010

Split stacks!

This could be big - in the October 2010 GNU Toolchain Update (subscribe!), Nick Clifton reports that split stacks have been added to GCC. With split stacks, thread stacks can grow (and shrink (?)) automatically.
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2 comments:

Shrutarshi Basu said...

I'm building a concurrent language where essentially each object is a thread and I was waiting for this to come out in the standard toolchain. I'm interested in seeing what the splitstack overhead is.

Tue Oct 19, 04:49:00 PM GMT+2
Manuel Simoni said...

One overhead, that's likely to affect dynamic languages, is that calls through a function pointer become more costly. In the GCC docs it says that they have to go through an additional indirection when split stacks are enabled.

Wed Oct 20, 08:13:00 AM GMT+2

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