Who hates the *Ratio parameters?

[Tony Printezis]

Ramki,

See below.

Y Srinivas Ramakrishna wrote:
>   
>>>  of *Ratio specs was that the the smallest ratio you
>>> could specify was 1:1. What about allowing percent specs to exceed 100
>>> in appropriate cases where it might make sense?
>>>   
>>>       
>> Like, for example, application throughput goal to be 150%, right? :-)
>>     
>
> That, of course, which would be hugely popular with most of our Java users, :-)
>   
:-)
> but, more specifically, would having, for example, a survivor size
> that is greater than Eden size (for example, via SurvivorPercentage=150)
> make sense under some scenario of performance objectives/constraints?
>   
Hmmm.... interesting. I had somehow assumed that the survivor percentage 
would be with respect to the young gen size, not with respect to the 
eden. I'm not sure which one is best. But, yes, you're right; we should 
allow for the possibility of the survivors being larger than the eden.

Additionally, someone, in a private communication (you know who you 
are!), also recommended that we actually provide EdenPercent instead of 
SurvivorPercent. Again, I'm not sure what the pros / cons are.

Tony

-- 
----------------------------------------------------------------------
| Tony Printezis, Staff Engineer    | Sun Microsystems Inc.          |
|                                   | MS BUR02-311                   |
| e-mail: tony.printezis at sun.com    | 35 Network Drive               |
| office: +1 781 442 0998 (x20998)  | Burlington, MA01803-0902, USA  |
----------------------------------------------------------------------
e-mail client: Thunderbird (Solaris)


_______________________________________________
hotspot-gc-use mailing list
hotspot-gc-use at openjdk.java.net
http://mail.openjdk.java.net/mailman/listinfo/hotspot-gc-use