Web Design Forums

Roombor · Joined: 02 Jun 2006 Posts: 111

Can you set the heap size in JAVA_OPTS to however much mem you want or is there a limit ?
Ie; xport JAVA_OPTS="-Xmx4096m -Xms4096m"

optomeb · Joined: 19 May 2006 Posts: 113

how much memory do you have?

Roombor · Joined: 02 Jun 2006 Posts: 111

8 gigs
=)

optomeb · Joined: 19 May 2006 Posts: 113

64 bit system?

Roombor · Joined: 02 Jun 2006 Posts: 111

AmeliaR · Joined: 31 May 2006 Posts: 142

64 it OS?

optomeb · Joined: 19 May 2006 Posts: 113

and 64 bit OS?

Roombor · Joined: 02 Jun 2006 Posts: 111

optomeb · Joined: 19 May 2006 Posts: 113

then it ougth to work...
does your java app really need that much memory?

AmeliaR · Joined: 31 May 2006 Posts: 142

Which 64bit OS?

kadamat · Joined: 01 Jun 2006 Posts: 88

Why do you immediately need a 64bit system to address >4GB of memory?
:-\

Roombor · Joined: 02 Jun 2006 Posts: 111

Just for my personal knowledge is there a limit if it were 32 bit os ?

AmeliaR · Joined: 31 May 2006 Posts: 142

Yes there is

optomeb · Joined: 19 May 2006 Posts: 113

kadamat, 32 bit pointers give you access to how much memory?

Roombor · Joined: 02 Jun 2006 Posts: 111

4 gb ?

AmeliaR · Joined: 31 May 2006 Posts: 142

You can't address more than 3Gig on X86
Infact once you elinate kernel stuff and some other things, it's close to 2gig

Roombor · Joined: 02 Jun 2006 Posts: 111

optomeb, no, i'm just trying to tweak things and i was curious

kadamat · Joined: 01 Jun 2006 Posts: 88

optomeb, 16bit pointers gave you more than 32K addresses on the old x8086 CPUs.

optomeb · Joined: 19 May 2006 Posts: 113

AmeliaR, more than 4 GB actually... and that is not really true either with PAE you can use 64 GB

AmeliaR · Joined: 31 May 2006 Posts: 142

Not in one application you can't

heap size in JavaOPTS