On 7/05/2011 11:57, Rob Rhodes wrote: > > > I have 4 cf9 standard licences, and four servers running win2k3 x86 (fairly > fast processors and 4gb ram each). I have a fifth win2k3 server x64 running > SQL Server 2005. These servetrs are recent installs and do not have any > other sites on them. > > My plan is to load the site on all four servers, all pointing to the same > database server (it appears much of the queries in the site are cached) > > I would then set up round-robin DNS to do the poor-mans load distribution. > > Most importantly I am hoping some of the gurus here might have some jvm > tuning suggestions to help handle the load.
We used to have servers with similar workload to what you describe before we went 64bit and virtual for those sites (with a startling increase in performance) and found a good base to start from was 1024MB max JVM heap size and a MaxPermSize of 256m. As you are 32bit then the max you can go to with max JVM Heap is about 1.4GB (theoretically 1.8GB but we never made that work) but be warned, _do not_ set the Minimum heap size to the same as the max when you are at these higher levels, CF frequently will refuse to start with "out of memory" errors in the output log. We found leaving the JVM min heap at 256MB gave a fast start and it wound up to the max fast enuf anyway :-) On some machines, (slightly different site combinations) the MaxPermSize ran best at 512MB. HTH -- Yours, Kym Kovan mbcomms.net.au ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 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:344319 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
