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Re: [RFC] type safe trees


On 24/06/2004, at 9:19 PM, Mark Mitchell wrote:

Geoff Keating wrote:

If you're using the current HEAD, you should know that there's a bad performance bug in which the GC settings are wrong when --disable-checking is in effect. If you're seeing GC happen when building combine.c in a bootstrap, you either forgot --disable-checking, you're seeing this bug, or you need to go buy more RAM (even my laptop, with 256Mb of RAM, doesn't GC while building combine.c with the computed --param ggc-min-heapsize=65536).

Would you please describe this bug in more detail? Do you know how to fix it?

Wasn't the above description sufficient? The symptom is that the GC parameters are locked at 4k, even with --disable-checking.

No, I don't know how to fix it. I don't even know if it's really in FSF GCC, it may be a merge bug into our local tree.

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