RFR (S) 8232051: Epsilon should warn about Xms/Xmx/AlwaysPreTouch configuration

[Aleksey Shipilev]

On 10/9/19 4:15 PM, Aleksey Shipilev wrote:
> RFE:
>   https://bugs.openjdk.java.net/browse/JDK-8232051
> 
> This is arguably the UX bug: users expect low latency, but may not be aware that additional
> configuration is needed for GCs to perform well in those conditions. Epsilon already enables LSM,
> and should warn about Xms/Xmx/AlwaysPreTouch config too. It cannot adjust these settings, though,
> because it would affect startup time -- users would have to opt-in.
> 
> Fix:
>   https://cr.openjdk.java.net/~shade/8232051/webrev.01/

Friendly reminder.

-- 
Thanks,
-Aleksey