Performance Tuning Guide, JGroups chapter.

10.3. Message Bundling
"The performance improvements of tuning the bundle size depends on ..."
I think only one of these words should end with s.

10.4. JGroups Thread Pools
"Appropriate values for each thread pool attribute depends on ..."
Same as with 10.3.

10.5. JGroups Send and Receive Buffers
"Appropriate values for JGroups buffers depends on ..."
I think there shouldn't be an s here.

Note that I'm neither a native English speaker nor an expert at English. I might be wrong in all of these cases. If you think the original is good, just close this issue. Overall, the chapter looks great, thanks!