I heard that one of the aims of icu4j 4.0 release is improving
performance, Harmony could also get benefit from upgrade.
Deven You wrote:
From our tests, upgrade to icu4j 4.0 can speed up tomcat startup time.
Great news! Could you please share your performance test data with us?
I'm very interested :)
2009/2/24 Mark Hindess <[email protected]>
In message <[email protected]>,
Deven You writes:
Hi,
I have tried to upgrade icu4j3.8 to icu4j4.0 for classlib trunk on my
machine, below is the instructions for this upgrade:
1. download icu4j-4_0.jar and icu4j-charsets-4_0.jar from ICU official
website http://icu-project.org/download/4.0.html
2. create icu4j_4.0 folder in trunk/depends/jars, copy icu4j-4_0.jar and
icu4j-charsets-4_0.jar into icu4j_4.0 folder
3. create icu4j_4.0 folder in trunk/depends/manifests, copy META-INF
foledr
from icu4j_3.8 and use version 4.0 replace 3.8 in the MANIFEST.MF file.
4. apply configuration patch[1] for icu4.0 to change some configuration
settings.
5. apply nio Charset patch[2] to avoid circular dependency error, if no
this patch, nio_char unit test will report many circular dependency
error[3]
I think maybe now we can upgrade icu4j 3.8 to icu4j 4.0.
any issues welcom to discuss!
[1]
https://issues.apache.org/jira/secure/attachment/12400589/config_icu40.diff
[2]
https://issues.apache.org/jira/secure/attachment/12400590/Charset.diff
[3]
https://issues.apache.org/jira/secure/attachment/12400591/nio_char_errors.txt
Seems like a good idea. I'll try to find a moment to test this.
What are the benefits we get from this upgrade? Performance? Footprint?
In case it helps anyone else, the JIRA with these attachments is:
https://issues.apache.org/jira/browse/HARMONY-6096
(I don't think there is an easy way to get from attachment links back to
the
jira link?)
Regards,
-Mark.
--
Best Regards,
Regis.
