Request queue for FastCGI

We are using IIS 8 on Windows Server 2012.
The websites are using PHP in FastCGI mode and we use MaxInstances to control the number of php-cgi.exe instances that will be loaded at the same time to serve concurrent requests.

But is there a way to see what the current number of requests are in the request queue waiting for an instance to become available? We don't want to set MaxInstances to 0 since we have a DB backend which we don't want to overload. But we would like to know if our current MaxInstances value is OK or if there is a very long queue at any given moment.
primecrewAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Greg HejlPrincipal ConsultantCommented:
http://stackoverflow.com/questions/4614681/problem-the-fastcgi-pool-queue-is-full

here's a nice long post on optimizing for a drupal site using fastcgi:

https://groups.drupal.org/node/60283

FastCGI user forum:

http://forums.iis.net/t/1214675.aspx?Intalling+a+php+site+in+IIS+performance+

as for connections to your DB - if you allocate enough memory to your SQL Server you should be able to fulfill the requirements for the web server.

are you using MSSql or MySQL?
0
primecrewAuthor Commented:
Thank you Greg Hejl for your reply

I had actually reviewed the first two links that you mention in your reply before writing this question here. And yes, if we get the response that there are too many requests in the queue we of course know that we should do something about it. But it would be nice to know what the current status is when there are requests in the queue but still not too many. If we have eg. a queue length of 10 000 it would be very nice to know if the queue length usually is 200 or 9 200...
0
Greg HejlPrincipal ConsultantCommented:
Ohh - sry - you are looking for worker processes current requests...

Here's a link from Stack overflow

http://stackoverflow.com/questions/15621509/how-do-i-see-currently-executing-web-request-on-iis-8

These counters are also exposed in Perf Monitor which can be queried with WMI

http://technet.microsoft.com/en-us/library/cc732518%28v=ws.10%29.aspx

Since request queues are dealt with so fast it is somewhat difficult to see realtime information...it's only a snapshot in time that you are able to capture.

http://blogs.iis.net/mailant/archive/2008/01/10/new-worker-process-performance-counters-in-iis7.aspx
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
primecrewAuthor Commented:
Thank you Greg.

We know about the IIS worker process requests but I wasn't sure if it also displayed requests that are queued for php-cgi processing or if they only show the requests that are actually being processed at any given time. But we will monitor it more closely now. Thanks again.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft IIS Web Server

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.