On 9/10/08, Mark Kruger <[EMAIL PROTECTED]> wrote: > Jamie, > > So you are running JRUN/Multi-server? Is that correct?
Yes. >Does each instance > have it's own JVM settings or do they all share the same JVM.config file? It seems they all share D:\JRun4\bin\jvm.config. Is it possible/advisable to do otherwise? > Also, if you are running JRUN multi-server the settings for the simultaneous > threads available to JRUN is very important. It is set to 50 by default... > But needs to be adjusted according to how many instances you are running and > your hardware resources. Start with 5x the number of procs/cores + 10 or 15 > as the starting point for JRUN, then 5x the number of procs/cores divided by > the number of instances for simultaneous... That would be a starting point This is the first time I've worked on a real (non dev) Web server on a VM, so I'm not sure how that figures in. If the VM shows a single processor, do I go with that figure, or do I find out what the host system actually has? Seems like 7 simultaneous threads would get me at a decent ballpark, given 3 instances in a (presumed) 1 processor VM. BTW, where *is* this setting for JRun? > but you will need to test. If you can't test then you will need to monitor > and adjust in real time.... Not pretty. A multi-server setup is very > complicated. It's a little scary running one without a staging > environment.... A bit of the cart before the horse :) I'm setting up stage right now, but production is on the fast track, too. Thanks again for the replies, Jamie > > -Mark > > > > -----Original Message----- > From: Jamie Jackson [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, September 10, 2008 9:32 AM > To: CF-Talk > > Subject: Re: Outdated Adobe Performance-Tuning Info > > Thanks for the link. I read through your and Steven's blog posts. > > However, something that complicates things (I think) is that our environment > is like that of a web host: We have multiple CF instances per server, and in > many cases, many sites per instance. It would be hard to do a real-world > load test on this, I would think (aside from tinkering with production > during peak hours). > > Also, CFMX *8* seems to have at least four different places where you can > set a max requests value, so there are even more variables to contend with > now. I think I'd have to defer to a better-informed person's guidelines as > to what is a "middle of the road" starting value for these things. I > wouldn't mind having the option of a single, more crude overall max request > setting, actually. > > Further, my question about Windows-specific tuning recommendations still > stands. I would guess that the Windows Server 2000 Adobe recommendations > (including registry hacks to networking) would be applicable to 2003, but > since I'm not an expert in this area, I wouldn't mind a sanity check there, > either. > > By the way, here are some shorter URLs that will survive wrapping better: > > ColdFusion MX: Tips for performance and scalability > http://www.adobe.com/go/tn_18540 > > Windows platform-specific performance settings > http://www.adobe.com/go/tn_17277 > > Thanks again, > Jamie > > On 9/10/08, Mark Kruger <[EMAIL PROTECTED]> wrote: > > Jamie, > > > > Testing and experience are your best guides. I have a post on this > > topic here.... > > > > > > http://www.coldfusionmuse.com/index.cfm/2006/5/4/higher.simultaneous.r > > equest > > s > > > > > > > > -Mark > > > > > > Mark A. Kruger, CFG, MCSE > > (402) 408-3733 ext 105 > > www.cfwebtools.com > > www.coldfusionmuse.com > > www.necfug.com > > > > > > -----Original Message----- > > From: Jamie Jackson [mailto:[EMAIL PROTECTED] > > Sent: Wednesday, September 10, 2008 8:56 AM > > To: CF-Talk > > Subject: Outdated Adobe Performance-Tuning Info > > > > The following articles, from early 2006, provide some guidance as to > > performance tuning CFMX on Windows. > > > > ColdFusion MX: Tips for performance and scalability > > http://kb.adobe.com/selfservice/viewContent.do?externalId=tn_18540 > > > > Windows platform-specific performance settings > > > > http://kb.adobe.com/selfservice/viewContent.do?externalId=tn_17277&sli > > ceId=2 > > > > However, they refer to outdated versions of CFMX, JVM, Windows, and > > IIS. Are more recent versions of these documents available? If not, > > can anyone comment on what guidelines, if any, have changed since then? > > > > One of the things I've noticed so far: > > > > "Simultaneous Requests. The simultaneous requests setting on the > "Settings" > > page of the ColdFusion Administrator has the largest impact on the > > scalability characteristic of an application (performance under load). > > This setting dictates how many threads will be used to simultaneously > > process incoming requests. For most applications, a good starting > > point for the optimal value for this setting is 3 per processor--a > > dual processor machine could be set to 6 simultaneous requests. The > > only way to find the optimal value for this setting is to test your > > application under load with different values until you find which one > provides the best performance under load." > > > > There is no single setting (that I've found) in the CFMX 8 > > administrator, as it seems to have more granular settings (pertaining > > to template, flash remoting, CFC function calls, etc.). Therefore, I > > don't have any guidance as to what are good starting values for these > settings. > > > > Thanks, > > Jamie > > > > > > > > > > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:312324 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
