On 29.01.2017 15:46, Daniel Sun wrote:
Hi all,
I noticed that test builds that use JDK 8 cost different time, they run
tests from master and parrot branch(contains all commits from
master)(http://ci.groovy-lang.org/project.html?projectId=Groovy), e.g.
BUILD TESTS COUNT COSTED
TIME
JDK 8 Build#1801 11155 22m:35s
JDK 8 snapshot build#995 11155 15m:32s
Antlr4 grammar#180 21591 23m:48s
Who can tell me what's different among the CI instances of "JDK 8
Build", "JDK 8 snapshot" and "Antlr4 grammar"?
hardware is the same for all. afaik the parrot branch under the "JDK 7
build" is tested with a JDK7 build bot. "Antlr4 grammar" is tested with
a JDK8 bot. The same bot is used for "JDK 8 build". "JDK 8 snapshot
build" uses a checked out JDK8 to run. If "JDK 8 snapshot" is much
faster, then maybe because of changes the JDK people did for an upcoming
new JDK8 release
PS:
If "Antlr4 grammar" CI instance has same hardware resource with "JDK 8
Build" CI instance, we can say the new parser Parrot has better performance
than the old one;
If "Antlr4 grammar" CI instance has same hardware resource with "JDK 8
snapshot build" CI instance, we can say the new parser Parrot has almost
same performance with the old one;
If you want to compare performance I suggest you run the build on your
computer with different JDKs. There you have much more control over things
bye Jochen
