Interesting. Doing the necessary rituals of sacrifice to get postgres started with the text segment mapped as huge pages yields nearly 10% speedup in a highly concurrent workload.
Thats quite interesting. They note that " Extending the residual code mapping to the end ofa superpage is made possible because the data segment isseparated from the code by 2MB of unused virtual addressspace (TableV)." - which isn't the case when compiling here locally...
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I just forced the linkers hand to have it align segments to huge boundaries, but that's obviously not a real solution (makes the binary a lot bigger).
Thanks. Twitter will use this to make your timeline better. UndoUndo
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