Maxthreads Question

[RedSoxM3]

6.7.1 on Win2k - 2 CPU (4 hyper threaded) @ 2.8ghz

We have a lot of FTP puts and gets. I've tried to spread out the calls via the time triggers, but a few times in a day, about 40 individual non related Maps will be executing at once on the management console.

However, normally throughout the day, there will only be about 1-5 maps exectuting concurrently.

Can I set the Maxthreads to 40? Can my current configuration (listed above) handle this? What are the disadvantages of putting this so high for normal low map count processing?

 

[OllyC]

>Can I set the Maxthreads to 40?
yes

> Can my current configuration (listed above) handle this?
yes

>What are the disadvantages of putting this so high for normal
>low map count processing?
There is no disadvantage when you have few maps running.
But when you have 40 threads, your maps will run more slowly and CPU will be spent on managing the 40 threads rather than doing useful work.

Its about striking a balance between having maps run faster (less threads) and more maps running (more threads).

Cheers,
Olly.

 

[BocaBurger]

There is also a difference between Maxthreads and WatchMaxthreads. See how much CPU each map takes and for how long. Then pick a number that will give you good performance without preventing needed maps from running in a timely manner. Watchmaxthreads can be about 1/3 to 1/2 maxthreads.
Use the maxconcurrent map instances setting in the IFD for any maps that have to run no matter how busy the system.

To save processing with FTP gets, have the map use the type=D to see if there are files available and if it returns with files, call a run map to do the actual get. Thsi way you don't have hundreds of FTP failures.


BocaBurger
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