Hi everyone:

Re: WAA 1.90.331
There are five questions posed which are not covered in the 
documentation and not covered elsewhere in the forum.
Any response would be appreciated.

1. What is the maximum number of worker threads?
2. What are the limits on worker threads?
3. What are the issues with a higher number of worker threads (say, over 
200)?
4. Do the limits take into account the increased performance of modern 
CPUs and disks?
5. What are other organizations using as a maximum number of worker threads?

Thread limits are OS specific and depend on threads running in other 
apps. AFAIK there  are no internal limits on threads in Xbase++ but your 
OS can run out of them due to exhaustion of OS threads. Personally never 
reached the limits


Jim


On 04/30/2016 12:56 PM, Allen Lee wrote:
> Hi everyone:
>
> Re: WAA 1.90.331
> There are five questions posed which are not covered in the
> documentation and not covered elsewhere in the forum.
> Any response would be appreciated.
>
> 1. What is the maximum number of worker threads?
> 2. What are the limits on worker threads?
> 3. What are the issues with a higher number of worker threads (say, over
> 200)?
> 4. Do the limits take into account the increased performance of modern
> CPUs and disks?
> 5. What are other organizations using as a maximum number of worker
> threads?

Allen Lee wrote:

> 1. What is the maximum number of worker threads?
> 2. What are the limits on worker threads?
> 3. What are the issues with a higher number of worker threads (say, over 
> 200)?
> 4. Do the limits take into account the increased performance of modern 
> CPUs and disks?
> 5. What are other organizations using as a maximum number of worker threads?

You could (or should) probably do some kind of load stress test to find out
the impact of higher worker thread settings.

There are loads of tools on the internet, both free and paid... maybe
http://jmeter.apache.org/ is a good starting point as it is free 

I also found this
http://www.devcurry.com/2010/07/10-free-tools-to-loadstress-test-your.html
which is a bit older...

best 
Thomas

Wow, those tools look exciting.
I'm going to give then a try, thank you.

On 5/2/2016 8:37 AM, Thomas Braun wrote:
> Allen Lee wrote:
>
>> 1. What is the maximum number of worker threads?
>> 2. What are the limits on worker threads?
>> 3. What are the issues with a higher number of worker threads (say, over
>> 200)?
>> 4. Do the limits take into account the increased performance of modern
>> CPUs and disks?
>> 5. What are other organizations using as a maximum number of worker threads?
>
> You could (or should) probably do some kind of load stress test to find out
> the impact of higher worker thread settings.
>
> There are loads of tools on the internet, both free and paid... maybe
> http://jmeter.apache.org/ is a good starting point as it is free 
>
> I also found this
> http://www.devcurry.com/2010/07/10-free-tools-to-loadstress-test-your.html
> which is a bit older...
>
> best
> Thomas
>

How is with WAA and known limitation of xBase++ that per default uses only CPU
0 (first one), even on multi-core system?

In ordinary apps it is circumented with logic to select random core in system,
but how about with WAA ?



Allen Lee <lee@infopro.ca> wrote in message
news:18db443c$743f06a2$2aadb0@news.alaska-software.com...
>Wow, those tools look exciting.
>I'm going to give then a try, thank you.
>
>On 5/2/2016 8:37 AM, Thomas Braun wrote:
>> Allen Lee wrote:
>>
>>> 1. What is the maximum number of worker threads?
>>> 2. What are the limits on worker threads?
>>> 3. What are the issues with a higher number of worker threads (say, over
>>> 200)?
>>> 4. Do the limits take into account the increased performance of modern
>>> CPUs and disks?
>>> 5. What are other organizations using as a maximum number of worker threads?
>>
>> You could (or should) probably do some kind of load stress test to find out
>> the impact of higher worker thread settings.
>>
>> There are loads of tools on the internet, both free and paid... maybe
>> http://jmeter.apache.org/ is a good starting point as it is free 
>>
>> I also found this
>> http://www.devcurry.com/2010/07/10-free-tools-to-loadstress-test-your.html
>> which is a bit older...
>>
>> best
>> Thomas
>>