Re: max heap
Sorry. Was referring to maximum POSSIBLE. i.e. 32 bit OS have a cap of 1.8 GB, right...? http://helpx.adobe.com/coldfusion/kb/maximum-jvm-heap-size-greater.html On Wed, Apr 2, 2014 at 11:47 PM, Wil Genovese jugg...@trunkful.com wrote: There is no such reference. Each server/application(s) has it's own needs that must be evaluated on a case by case basis. The only general rule of thumb that can be applied is that 64bit systems tend to need more JVM heap than a 32bit system and that isn't even set in stone. It still depends on the web application(s) needs. Regards, Wil Genovese Sr. Web Application Developer/ Systems Administrator CF Webtools www.cfwebtools.com wilg...@trunkful.com www.trunkful.com On Apr 2, 2014, at 9:14 PM, John M Bliss bliss.j...@gmail.com wrote: Hi. Does anyone know of a simple-ish reference showing: ACF version ACF standard v enterprise (if that matters) OS (Windows v Linux) OS version (if that matters) OS 32 bit v 64 bit ...and correlated max heap size? -- John Bliss - http://www.linkedin.com/in/jbliss ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358292 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: max heap
I have never got close to 1.8 on a 32bit OS, but then you also have to consider the memory usage in addition to the heap size. CF itself uses a bunch of memory as it is a java app, then there are the perm gen sizes and what not, so your max heap size will depend on other settings. I have never been able to set it much more than 1GB. on 64bit you can use all the available memory but 64bit also uses about twice as much to begin with On Thu, Apr 3, 2014 at 11:04 AM, John M Bliss bliss.j...@gmail.com wrote: Sorry. Was referring to maximum POSSIBLE. i.e. 32 bit OS have a cap of 1.8 GB, right...? http://helpx.adobe.com/coldfusion/kb/maximum-jvm-heap-size-greater.html On Wed, Apr 2, 2014 at 11:47 PM, Wil Genovese jugg...@trunkful.com wrote: There is no such reference. Each server/application(s) has it's own needs that must be evaluated on a case by case basis. The only general rule of thumb that can be applied is that 64bit systems tend to need more JVM heap than a 32bit system and that isn't even set in stone. It still depends on the web application(s) needs. Regards, Wil Genovese Sr. Web Application Developer/ Systems Administrator CF Webtools www.cfwebtools.com wilg...@trunkful.com www.trunkful.com On Apr 2, 2014, at 9:14 PM, John M Bliss bliss.j...@gmail.com wrote: Hi. Does anyone know of a simple-ish reference showing: ACF version ACF standard v enterprise (if that matters) OS (Windows v Linux) OS version (if that matters) OS 32 bit v 64 bit ...and correlated max heap size? -- John Bliss - http://www.linkedin.com/in/jbliss ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358293 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: max heap
Thanks. Are others seeing this (On 32 bit, I have never been able to set it much more than 1 GB)? On Thu, Apr 3, 2014 at 6:42 AM, Russ Michaels r...@michaels.me.uk wrote: I have never got close to 1.8 on a 32bit OS, but then you also have to consider the memory usage in addition to the heap size. CF itself uses a bunch of memory as it is a java app, then there are the perm gen sizes and what not, so your max heap size will depend on other settings. I have never been able to set it much more than 1GB. on 64bit you can use all the available memory but 64bit also uses about twice as much to begin with On Thu, Apr 3, 2014 at 11:04 AM, John M Bliss bliss.j...@gmail.com wrote: Sorry. Was referring to maximum POSSIBLE. i.e. 32 bit OS have a cap of 1.8 GB, right...? http://helpx.adobe.com/coldfusion/kb/maximum-jvm-heap-size-greater.html On Wed, Apr 2, 2014 at 11:47 PM, Wil Genovese jugg...@trunkful.com wrote: There is no such reference. Each server/application(s) has it's own needs that must be evaluated on a case by case basis. The only general rule of thumb that can be applied is that 64bit systems tend to need more JVM heap than a 32bit system and that isn't even set in stone. It still depends on the web application(s) needs. Regards, Wil Genovese Sr. Web Application Developer/ Systems Administrator CF Webtools www.cfwebtools.com wilg...@trunkful.com www.trunkful.com On Apr 2, 2014, at 9:14 PM, John M Bliss bliss.j...@gmail.com wrote: Hi. Does anyone know of a simple-ish reference showing: ACF version ACF standard v enterprise (if that matters) OS (Windows v Linux) OS version (if that matters) OS 32 bit v 64 bit ...and correlated max heap size? -- John Bliss - http://www.linkedin.com/in/jbliss ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358294 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
RE: max heap
1.8 is possible on a linux 32bit server... on a windows 32 bit is closer to 1.4 - a lot depends on the overall settings you choose. As for 64bit the upper limit is purley theoretical and you will likely never reach it - probably more than a petabyte. In practice we have some 12gig heaps running successfully - and more is possible. It's just that you tend to start running more instances or servers rather than continuing to up the heap size. -mark -Original Message- From: John M Bliss [mailto:bliss.j...@gmail.com] Sent: Thursday, April 03, 2014 5:50 AM To: cf-talk Subject: Re: max heap Thanks. Are others seeing this (On 32 bit, I have never been able to set it much more than 1 GB)? On Thu, Apr 3, 2014 at 6:42 AM, Russ Michaels r...@michaels.me.uk wrote: I have never got close to 1.8 on a 32bit OS, but then you also have to consider the memory usage in addition to the heap size. CF itself uses a bunch of memory as it is a java app, then there are the perm gen sizes and what not, so your max heap size will depend on other settings. I have never been able to set it much more than 1GB. on 64bit you can use all the available memory but 64bit also uses about twice as much to begin with On Thu, Apr 3, 2014 at 11:04 AM, John M Bliss bliss.j...@gmail.com wrote: Sorry. Was referring to maximum POSSIBLE. i.e. 32 bit OS have a cap of 1.8 GB, right...? http://helpx.adobe.com/coldfusion/kb/maximum-jvm-heap-size-greater.html On Wed, Apr 2, 2014 at 11:47 PM, Wil Genovese jugg...@trunkful.com wrote: There is no such reference. Each server/application(s) has it's own needs that must be evaluated on a case by case basis. The only general rule of thumb that can be applied is that 64bit systems tend to need more JVM heap than a 32bit system and that isn't even set in stone. It still depends on the web application(s) needs. Regards, Wil Genovese Sr. Web Application Developer/ Systems Administrator CF Webtools www.cfwebtools.com wilg...@trunkful.com www.trunkful.com On Apr 2, 2014, at 9:14 PM, John M Bliss bliss.j...@gmail.com wrote: Hi. Does anyone know of a simple-ish reference showing: ACF version ACF standard v enterprise (if that matters) OS (Windows v Linux) OS version (if that matters) OS 32 bit v 64 bit ...and correlated max heap size? -- John Bliss - http://www.linkedin.com/in/jbliss ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358295 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: max heap
1.8 is possible on a linux 32bit server... on a windows 32 bit is closer to 1.4 - a lot depends on the overall settings you choose. As for 64bit the upper limit is purley theoretical and you will likely never reach it - probably more than a petabyte. In practice we have some 12gig heaps running successfully - and more is possible. It's just that you tend to start running more instances or servers rather than continuing to up the heap size. Actually, it is possible to exceed that on 32-bit Windows Server 2003 with a switch at system startup. https://blogs.oracle.com/jrockit/entry/how_to_get_almost_3_gb_heap_on_windows That said, I've never bothered to do this, and am not sure it would be a great idea anyway. As for max heap size in general, I don't think there's anything CF-specific about it. CF will use whatever is available if it needs to use it, but heap size is completely controlled by the JVM. Dave Watts, CTO, Fig Leaf Software 1-202-527-9569 http://www.figleaf.com/ http://training.figleaf.com/ Fig Leaf Software is a Veteran-Owned Small Business (VOSB) on GSA Schedule, and provides the highest caliber vendor-authorized instruction at our training centers, online, or onsite. ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358296 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
RE: max heap
Dave, I worked with that 3GB switch to try to get up to 2g heap but was never able to do it successfully - get a large heap I mean. Never tried it was jrocket though. -Mark -Original Message- From: Dave Watts [mailto:dwa...@figleaf.com] Sent: Thursday, April 03, 2014 9:08 AM To: cf-talk Subject: Re: max heap 1.8 is possible on a linux 32bit server... on a windows 32 bit is closer to 1.4 - a lot depends on the overall settings you choose. As for 64bit the upper limit is purley theoretical and you will likely never reach it - probably more than a petabyte. In practice we have some 12gig heaps running successfully - and more is possible. It's just that you tend to start running more instances or servers rather than continuing to up the heap size. Actually, it is possible to exceed that on 32-bit Windows Server 2003 with a switch at system startup. https://blogs.oracle.com/jrockit/entry/how_to_get_almost_3_gb_heap_on_window s That said, I've never bothered to do this, and am not sure it would be a great idea anyway. As for max heap size in general, I don't think there's anything CF-specific about it. CF will use whatever is available if it needs to use it, but heap size is completely controlled by the JVM. Dave Watts, CTO, Fig Leaf Software 1-202-527-9569 http://www.figleaf.com/ http://training.figleaf.com/ Fig Leaf Software is a Veteran-Owned Small Business (VOSB) on GSA Schedule, and provides the highest caliber vendor-authorized instruction at our training centers, online, or onsite. ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358297 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: max heap
I worked with that 3GB switch to try to get up to 2g heap but was never able to do it successfully - get a large heap I mean. Never tried it was jrocket though. I've seen it work with a generic Tomcat server. I don't recall why it was needed in that case, or even whether it was needed. Dave Watts, CTO, Fig Leaf Software 1-202-527-9569 http://www.figleaf.com/ http://training.figleaf.com/ Fig Leaf Software is a Veteran-Owned Small Business (VOSB) on GSA Schedule, and provides the highest caliber vendor-authorized instruction at our training centers, online, or onsite. ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358298 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: max heap
Dave, Thanks so much for this 3GB article. I never ever knew about this. We have a ton of Cf8, servers on 2003 still. Literally, those older chassis can weigh alot. Actually, we've P2V'd must of them. Most, if not all are running jrockit, since it was much better than the Sun jvm back then. So, I wouldn't doubt that this is specific to jrockit. Byron Mann Lead Engineer Architect HostMySite.com ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358303 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: max heap
There is no such reference. Each server/application(s) has its own needs that must be evaluated on a case by case basis. The only general rule of thumb that can be applied is that 64bit systems tend to need more JVM heap than a 32bit system and that isnt even set in stone. It still depends on the web application(s) needs. Regards, Wil Genovese Sr. Web Application Developer/ Systems Administrator CF Webtools www.cfwebtools.com wilg...@trunkful.com www.trunkful.com On Apr 2, 2014, at 9:14 PM, John M Bliss bliss.j...@gmail.com wrote: Hi. Does anyone know of a simple-ish reference showing: ACF version ACF standard v enterprise (if that matters) OS (Windows v Linux) OS version (if that matters) OS 32 bit v 64 bit ...and correlated max heap size? -- John Bliss - http://www.linkedin.com/in/jbliss ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358291 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
