How do I increase Java Heap Size

[OldPCGUY]

I am total lost. I got a Java Heap size error but I have 4G of memory running XP Windows.

I searched a bunch of posts on Java heap size but none of them tells you how or where to increase.

I don't know if I should increase Java Heap Size in Sage(through some menu) or Sage.properties or is it a Windows System option.

Any help would be greatly appreciated.

[HelenWeathers]

Originally Posted by OldPCGUY

I searched a bunch of posts on Java heap size but none of them tells you how or where to increase.

click start
click run
type regedit and click ok
expand HKEY_LOCAL_MACHINE
expand SOFTWARE
expand Frey Technologies
under SageTV in right window doubleclick on JVMMaxHeapSizeMB

set as follows
100h=256
200h=512
300h=768
400h=1024

400h is probably best, especially w 4gb of memory

[OldPCGUY]

You are one of the best persons on this forumn!!

Easy to set with the instructions you gave me!!

It was set to 000H so I have no idea how it ever worked.

[HelenWeathers]

Originally Posted by OldPCGUY

Great Helen Responds Again!!!!

I think there should probably be a comma after Great.

I think when not set it defaults to 100h (256d).

[matt91]

there is also a little applet that will do this automagically for you.

It's posted on here someplace.

[JetreL]

Here is the link to the tool.

Link

I have used it once. Seems to work fine, though I really don't mind doing the manual edits as needed. This at least keeps them all in the same place.

[Chriscic]

Originally Posted by HelenWeathers

click start
click run
type regedit and click ok
expand HKEY_LOCAL_MACHINE
expand SOFTWARE
expand Frey Technologies
under SageTV in right window doubleclick on JVMMaxHeapSizeMB

set as follows
100h=256
200h=512
300h=768
400h=1024

400h is probably best, especially w 4gb of memory

Sorry for being dense, but am I typing in "300h" or that shorthand for typing in "300" in hexidecimal mode? Guessing the latter. Thanks.

[HelenWeathers]

Originally Posted by Chriscic

Sorry for being dense, but am I typing in "300h" or that shorthand for typing in "300" in hexidecimal mode? Guessing the latter. Thanks.

Yes, you just enter 300 (and leave off the h).

[traker1001]

Wrong thread

[aweber1nj]

Is there a similar setting that should be tweaked on Sage Client 7.1.5 (Win7)?

I found the HKLM setting listed above on the STV Server, and changed it, but if I'm running Diamond, etc., on the client, is there a similar key that needs to be increased, or is it located elsewhere in the client settings?

Thanks,
AJ

[razrsharpe]

Originally Posted by aweber1nj

Is there a similar setting that should be tweaked on Sage Client 7.1.5 (Win7)?

I found the HKLM setting listed above on the STV Server, and changed it, but if I'm running Diamond, etc., on the client, is there a similar key that needs to be increased, or is it located elsewhere in the client settings?

Thanks,
AJ

its the same key on the client (obviously change the key on the client, it does not inherit the key from the server)

[Tomahawk51]

Originally Posted by HelenWeathers

click start
click run
type regedit and click ok
expand HKEY_LOCAL_MACHINE
expand SOFTWARE
expand Frey Technologies
under SageTV in right window doubleclick on JVMMaxHeapSizeMB

set as follows
100h=256
200h=512
300h=768
400h=1024

400h is probably best, especially w 4gb of memory

I (will soon) have 6gb of RAM. Any reason to go with MORE than 1024? Can I even do that? I recall someone says Java can only go to 1.5gb (of contiguous RAM), but I don't recall ever seeing advice on this. Is going with more OK or a bad idea?

[panteragstk]

Originally Posted by Tomahawk51

I (will soon) have 6gb of RAM. Any reason to go with MORE than 1024? Can I even do that? I recall someone says Java can only go to 1.5gb (of contiguous RAM), but I don't recall ever seeing advice on this. Is going with more OK or a bad idea?

Mine is set to 13**MB on one client and 1100MB on another. The one with 1100 gets close to full quite often.

[aweber1nj]

Originally Posted by razrsharpe

its the same key on the client (obviously change the key on the client, it does not inherit the key from the server)

OK, but neither the key nor the value (even the default of 0) exists on the client. So just create it, and it will use it?

[aweber1nj]

Originally Posted by panteragstk

Mine is set to 13**MB on one client and 1100MB on another. The one with 1100 gets close to full quite often.

Forgive me, but having done a fair share of java development, that's a pretty obscene amount of memory. Do you still get OOM exceptions occasionally, or is this just purely that you're running every plug-in known to man?

[razrsharpe]

Originally Posted by aweber1nj

OK, but neither the key nor the value (even the default of 0) exists on the client. So just create it, and it will use it?

If the client is 64bit look here:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Frey Technologies\SageTV

Also if you are using vista/Win7 and have UAC enabled then the actual key you need to modify exists in the virtual store... changing the one you think you need to doesn't actually do anything. See this post for some more details

[aweber1nj]

Yeah, I disabled UAC on one of the two machines...maybe that's the one I didn't do yet. I'll check that in the morning. Thanks for the tip on that.

BTW: One of the reasons I'm bumping the heap is so I can install TVExplorer!!! (I'm sure you have it tested on 7.1.5 by now, right?)

[razrsharpe]

Originally Posted by aweber1nj

BTW: One of the reasons I'm bumping the heap is so I can install TVExplorer!!! (I'm sure you have it tested on 7.1.5 by now, right?)

yup works just peachy on 7.1.5

[panteragstk]

Originally Posted by aweber1nj

Forgive me, but having done a fair share of java development, that's a pretty obscene amount of memory. Do you still get OOM exceptions occasionally, or is this just purely that you're running every plug-in known to man?

Not too many plugins, but some of them (especially the beta ones) use lots of heap (image caching I think). I don't get any OOM errors any more, but those were caused by a known problem with diamond.

[wildgoose]

On Win7 64bit, the key is here:

HKEY_CURRENT_USER\Software\Classes\VirtualStore\MACHINE\SOFTWARE\Wow6432Node\Frey Technologies\SageTV\

Default:
JVMMaxHeapSizeMB = 0

Setting this to 400 (1024) works correctly in my Sage v7.