Are there any system tools that allow you to profile an application's usage of storage? Basically, I'm looking for information on determining whether there are more large sequential reads, tiny ...
On Solaris I can use mpstat to see the smtx (i.e., spins on mutex or in other words locks not acquired on the first try) value. This value increasing indicates that swap is being hit too frequently ...
I've found lots of similar questions, but nothing that's exactly right. I'm trying to figure out what's making one server run slower than another. I'm hoping for something that would say something ...