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
Michael,
This is out of my head so forgive me if I am off on a factual point or two -
but you will get the gist of it.
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
In summary - More address space at the expense of longer addresses. No 4
gig memory cap but each gig is 'worth' slightly less.
On Tue, Sep 3, 2013 at 9:08 AM, Mark A Kruger mkru...@cfwebtools.comwrote:
Michael,
This is out of my head so forgive me if I am off on a factual point or two
-
On Tue, Sep 3, 2013 at 9:08 AM, Mark A Kruger mkru...@cfwebtools.comwrote:
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
Pretty nice idea indeed; I'll give a try.
Thanks.
~|
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Archive:
Thanks Pete - good info. I'll file that away :) so each address is 64bits
even if the storage is only 32bits. Weird but I think I got it.
I think 2 gigs for the OS is fine - at least on a windows box dedicated to
CF the OS doesn't need much more than that typically even with some backup
agents
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 thought
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
I just upgraded an FTP install to the latest serv-u and every time I try to
export, edit, or do anything with a user, I get a grey block over the
entire screen. I either need to export the users with passwords or find
some way to access the info. A few of the accounts are used with cfftp, but
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