tag:blogger.com,1999:blog-11805603.post7113243589506755504..comments2023-01-29T02:09:57.926-06:00Comments on Daryl's ColdFusion Notes: Multiple ColdFusion Instances NEQ "Faster"Daryl the Data Plumberhttp://www.blogger.com/profile/01281918394349579472noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-11805603.post-91723658945864515492009-01-28T16:48:00.000-06:002009-01-28T16:48:00.000-06:00Thanks!!Thanks!!Mike@AMhttps://www.blogger.com/profile/15958500033012538990noreply@blogger.comtag:blogger.com,1999:blog-11805603.post-79301459246736552582009-01-28T16:33:00.000-06:002009-01-28T16:33:00.000-06:00@Mike,1) They're all regular datasources that poin...@Mike,<BR/><BR/>1) They're all regular datasources that point to a regular database.<BR/><BR/>2) I didn't keep copies of the results of those tests-- and even if I had, it would have been a nightmare to get publishing permission from the Fortune 500 company involved. I guess that makes me something of a hypocrite, since I complained in my original post about no testing methodology being shown, but I'll find a way to live with that pain. ;)Daryl the Data Plumberhttps://www.blogger.com/profile/01281918394349579472noreply@blogger.comtag:blogger.com,1999:blog-11805603.post-75138686192881437382009-01-28T15:14:00.000-06:002009-01-28T15:14:00.000-06:00Thanks again, Daryl.I'm still hoping for a couple ...Thanks again, Daryl.<BR/><BR/>I'm still hoping for a couple more answers...<BR/>1) The "identically-configured datasources" - they all point to the same one database instance, correct? They do not point to some sort of a clustered database environment, right?<BR/><BR/>2) Do you have any sort of data/results from your tests that we can all see?<BR/><BR/>You rock,<BR/>MikeMike@AMhttps://www.blogger.com/profile/15958500033012538990noreply@blogger.comtag:blogger.com,1999:blog-11805603.post-43472850735523447952009-01-23T16:03:00.000-06:002009-01-23T16:03:00.000-06:00TalkingTree,I was using the customer's LoadRunner ...TalkingTree,<BR/><BR/>I was using the customer's LoadRunner installation for those tests, and their scripts. The test results were consistent from test to (identical) test so I was confident of their usefullness. (Conversely, if the same test gives results that vary significantly from run to run, you really can't use that test for measuring the effects of changes.)<BR/><BR/>@Mike,<BR/><BR/>If you're running ColdFusion 64-bit, then you have a memory cap only barely theoretically reachable. (You need the 64-bit installer and ColdFusion 8.0.1 Enterprise to run 64-bit, though.)<BR/><BR/>Aside: It once seemed only theoretically reachable to use the whole of 2^32 bytes of RAM, because it was 65,536 times larger than the address space of a 16bit computer. Took only a few years to get 65,000x larger address spaces... but going from 2^32 to 2^64 is not "double that" by any means... we'd have to start needing four billion times more memory than present for 2^64 to become "crowded". The move from 64-bit address spaces to 128-bit address spaces will take a LOT longer than 16-bit to 32-bit did.Daryl the Data Plumberhttps://www.blogger.com/profile/01281918394349579472noreply@blogger.comtag:blogger.com,1999:blog-11805603.post-60450785678263800272009-01-23T12:57:00.000-06:002009-01-23T12:57:00.000-06:00Thanks for the heads-up, Daryl.Can you clarify som...Thanks for the heads-up, Daryl.<BR/><BR/>Can you clarify something for me? The "identically-configured datasources" - they all point to the same one dataBASE instance, correct? They do not point to some sort of a clustered database environment, right?<BR/><BR/>Also (and this may be a trivial question), I have a 64-bit machine on which I was just about to install a second CF instance (to be clustered). I believed this was needed to allocate more than 2Gb of memory to the instance, am I wrong? Is there no jrun/cf memory cap in 64-bit land?<BR/><BR/>Lastly, do you have any sort of data/results from your tests that we can all see?<BR/><BR/>Cheers!<BR/>MikeMike@AMhttps://www.blogger.com/profile/15958500033012538990noreply@blogger.comtag:blogger.com,1999:blog-11805603.post-75258471534767016182009-01-23T11:54:00.000-06:002009-01-23T11:54:00.000-06:00Glad to you see some great posts from you Daryl. ...Glad to you see some great posts from you Daryl. Thanks.<BR/><BR/>What do you use nowadays for load testing?Steven Erathttps://www.blogger.com/profile/04646782235320982976noreply@blogger.com