https://issues.apache.org/bugzilla/show_bug.cgi?id=56487
Bug ID: 56487
Summary: Bad performance in Eclipse for large output since
version 1.8
Product: Ant
Version: 1.8.0
Hardware: PC
Status: NEW
Severity: major
Priority: P2
Component: Core tasks
Assignee: [email protected]
Reporter: [email protected]
I observed a huge performance difference between Ant 1.7.1 and the actual 1.9.3
using win7 and Eclipse 4.3.2.
Here is my example test project:
<project name="doit" >
<echo>ant.version=${ant.version}</echo>
<exec executable="cmd" dir="c:\">
<arg value="/c" />
<arg value="test.bat" />
</exec>
</project>
test.bat just produces a lot of output (10'000 lines with 1'000 chars each) and
containts the following:
@for /L %%i IN (1 1 10000) do @echo
12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678
90
In this case, the eclipse console speeds things up for 1.7.1!
Here are the times for my doit-example on my machine:
win console eclipse console
1.7.1 42 seconds 1 second
1.9.2 43 seconds 38 seconds
1.9.3 43 seconds 37 seconds
And console output in eclipse is not limited!
There is some discussion about this issue in Bug 54128 which led to this new
bug.
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