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[aspectj-users] Incremental compiler enhancements
- From: "Andy Clement" <andrew.clement@xxxxxxxxx>
- Date: Thu, 3 Apr 2008 16:16:06 -0700
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I've committed some changes discussed in
What does this mean? It means snappier compiles for a workspace
containing multiple AJDT projects that depend on each other, or depend
on JDT projects.
Your mileage may vary, but here are some numbers for working on a
codebase containing 4 AJDT projects in a dependency chain. After
adding a public method to a type in the project at the top of the
dependency chain, the following numbers are for 'old' AJDT (averaged
over a few runs):
compile project one: 600ms
compile project two: 1188ms (full build)
compile project three: 9500ms (full build)
compile project four: 3034ms (full build)
Now with the changes in
compile project one: 500ms
compile project two: 210ms (incremental build)
compile project three: 800ms (incremental build)
compile project four: 300ms (incremental build)
So total build time for the change is reduced by about 87%.
For an AJDT project depending on a JDT project. I change a type in
the JDT project but it is not a type that the AJDT project actually
cares about (is not referenced):
Old AJDT: Compile time of AJDT project = 6200ms (full build)
New AJDT: Compile time of AJDT project = 500ms (incremental build)
These changes are in AJDT dev build 188.8.131.52804031719 available now
from the dev update site for Eclipse 3.3.
feedback appreciated - good or bad.