All right. I’ll clarify then.
-0 on switching the default to G1 *this late* just before RC1.
-1 on switching the default offheap_objects *for 4.1 RC1*, but all for it in
principle, for 4.2, after we run some more test and resolve the concerns raised
by Jeff.
Let’s please try to avoid this kind
To clarify: -0 here on G1 as default for 4.1 as well; I'd like us to prioritize
digging into G1's behavior on small heaps vs. CMS w/our default tuning sooner
rather than later. With that info I'd likely be a strong +1 on the shift.
-1 on switching to offheap_objects for 4.1 RC; again, think this
Heap -+1 for G1 in trunk+0 for G1 in 4.1 - I think it’s worthwhile and fairly well tested but I understand pushback against changing this so late in the game.Memtable --1 for off heap in 4.1. I think this needs more testing and isn’t something to change at the last minute.+1 for running performance
Getting poked in Slack to be more explicit in this thread…
Switching to G1 on trunk, +1
Switching to G1 on 4.1, -1. 4.1 is about to be released and this isn’t a bug
fix but a perf improvement ticket and as such should go through validation that
the perf improvements are seen, there is not enou
I share David and Aleksey’s views on this.
We shouldn’t make major defaults changes right before RC. Might be worth adding
a release note recommending users try them, and that they may become default in
a future release though.
— Scott
> On Nov 16, 2022, at 3:38 PM, David Capwell wrote:
>
>
I'm fine with not including G1 in 4.1, but would we consider inclusion
for 4.1.X down the road once validation has been done?
Derek
On Wed, Nov 16, 2022 at 4:39 PM David Capwell wrote:
>
> Getting poked in Slack to be more explicit in this thread…
>
> Switching to G1 on trunk, +1
> Switching to
We have precedent for changing defaults that have near-universal positive
impact in patchlevel releases, yep.
disk_access_mode: auto -> mmap_index_only comes to mind.
- Scott
> On Nov 16, 2022, at 6:49 PM, Derek Chen-Becker wrote:
>
> I'm fine with not including G1 in 4.1, but would we consi
