Win a copy of The Little Book of Impediments (e-book only) this week in the Agile and Other Processes forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

tolerance & Workload

 
JigaR Parekh
Ranch Hand
Posts: 112
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi All,

i have some more confusion with tolerance from Humphrey Sheil book Chapter 1

How tolerance can increase Performance and Manageability? and
How Workload can increase Performance? i think it should decrease Performance.


Tolerance:

The tolerance dimension is the time available to fulfill a request from a user. Tolerance is closely bound with the overall perceived performance.
Tolerance can increase performance, scalability, reliability, and manageability.


Workload:

The workload dimension is the computational work being performed at a particular point within the system. Workload is closely related to capacity in that workload consumes available capacity, which leaves fewer resources available for other tasks.
Workload can increase performance, scalability, and availability.

 
JigaR Parekh
Ranch Hand
Posts: 112
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Still confused with this any help?
 
JigaR Parekh
Ranch Hand
Posts: 112
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Posted this question to Humphrey Sheil blog let's see what book author replies.
 
Teja Saab
Rancher
Posts: 152
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Tolerance can increase performance, scalability, reliability, and manageability.
Workload can increase performance, scalability, and availability.


I think the keyword is "can" and the statement does not say "will". I think in 9 out of 10 cases, the statement won't be true. Maybe in a situation where additional workload causes the application server to cache stuff, keep database connections alive instead of closing them due to inactivity, keeping other types of connections alive such as other EIS connections, keeping a ready pool of method ready session beans instead of removing them from EJB container memory, the statement might become true.

Just my thoughts though...
 
JigaR Parekh
Ranch Hand
Posts: 112
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks for your thought,

i think if this is the case then workload can increase or decrease performance might be better statement.

so still not clear how tolerance and workload can increase performance,scalability,availability & manageability.

May be Mark or Humphrey can clarify this
 
It is sorta covered in the JavaRanch Style Guide.
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic