I am confused by this flag. This flag allows us to allocate statically known arrays sizes of <= n to be allocated from the current nursery block. But looking at the code in allocateMightFail, as I interpret it, any size array up to LARGE_OBJECT_THRESHOLD is anyway allocated from the current nursery block. So why have this option? Why not fix this to LARGE_OBJECT_THRESHOLD? Maybe I am missing something.
-harendra On Fri, 7 Apr 2023 at 15:45, Harendra Kumar <harendra.ku...@gmail.com> wrote: > > > On Fri, 7 Apr 2023 at 12:57, Simon Peyton Jones < > simon.peytonjo...@gmail.com> wrote: > >> > We are emitting a more efficient code when the size of the array is >> smaller. And the threshold is governed by a compiler flag: >> >> It would be good if this was documented. Perhaps in the Haddock for >> `newByteArray#`? Or where? >> > > The flag is documented in the GHC user guide but the behavior would be > better discoverable if `newByteArray#` mentions it. > > -harendra >
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