Re: [Gc] Is there a way to walk the entire heap of live objects

Personally, I think block splitting (or combining for that matter) is
inherently a bad thing to do.

The only use-case it really helps with is a program allocating huge
temporary things at startup and then never again. At the same time it
pessimises many other common use-patterns. It's one thing to have a single
1 MB unused hole laying around forever. It's quite another to repeatedly
turn 1 MB holes into 999999 KB holes that aren't quite big enough the next
time the 1 MB object is allocated.

Anyway, I'm interested to hear from Christian if disabling it has any
effect.


On Sat, Jun 7, 2014 at 8:15 PM, Ivan Maidanski <ivmai-JGs/[email protected]> wrote:

> Hi Cristian,
>
> Do you use latest gc? (From any bdwgc repository)
> I remember I had some out of memory issue resolved by fixing splitting in
> allocblk_nth. See commits ec5130a and 701f219 but they both relates to
> bdwgc compiled with USE MUNMAP.
>
> Regards,
> Ivan
>
>
>

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