Memory(Heap) is managed in generations, or memory pools holding objects of
different ages. Garbage collection occurs in each generation when the
generation fills up. Objects are allocated in a generation for younger
objects or the young generation, and because of infant mortality most
objects die
> Also Michael - 2gb perm size seams rather large generally speaking (unless
> you have tons of cfm/cfc files). Further if your server has 8GB of ram, and
> you are setting 6GB max heap and 2GB max perm size then you are not leaving
> any room for the OS to operate when things get full.
>
I though
h some backup
agents etc. I agree with you on the permsize though
-mark
-Original Message-
From: Pete Freitag [mailto:p...@foundeo.com]
Sent: Tuesday, September 03, 2013 11:41 AM
To: cf-talk
Subject: Re: Good jvm ram settings for 64 bit ColdFusion
On Tue, Sep 3, 2013 at 9:08 AM,
On Tue, Sep 3, 2013 at 9:08 AM, Mark A Kruger wrote:
> In 32 bit addressing each memory "address" takes up 4 bytes (4 x 8 bits)
> but a 64 bit address space is wider (as in 8 x 8 bits). So for example, if
> you store an integer - say 14 - on a 32 bit system, it will take 4 bytes to
> do it (000
gt; O: 402.932.3318
> E: mkru...@cfwebtools.com
> Skype: markakruger
>
>
>
> -Original Message-
> From: Michael Dinowitz [mailto:mdino...@houseoffusion.com]
> Sent: Tuesday, September 03, 2013 7:19 AM
> To: cf-talk
> Subject: Re: Good jvm ram settings for 64 bi
Dinowitz [mailto:mdino...@houseoffusion.com]
Sent: Tuesday, September 03, 2013 7:19 AM
To: cf-talk
Subject: Re: Good jvm ram settings for 64 bit ColdFusion
Mark,
To start, the assignment of 6 gig to maxheap and 2 gig to maxperm is
working perfectly.
I'll expose my ignorance here and ask about tha
Mark,
To start, the assignment of 6 gig to maxheap and 2 gig to maxperm is
working perfectly.
I'll expose my ignorance here and ask about that 80%. Is there some
inefficiency in jvm ram assignment in 64 bit in comparison to 32 bit? Is
there more overhead in ram assignment? Just wondering what's u
Michael,
Rule of thumb is 80% for equivelancy. In other words, a 1.8 gig 64bit is
equal to a 1gig 32 bit. Heap. Or you can just multiply times 2 (which is
usually what I do). So a 6 gig heap is roughly 3 or more times the size of
your 32bit 1 gig heap. If your server is dedicated to CF I think yo
8 matches
Mail list logo
