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https://issues.apache.org/jira/browse/CALCITE-484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14250516#comment-14250516
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Vladimir Sitnikov commented on CALCITE-484:
-------------------------------------------
If you do not object, I exclude {{Calcite Ubenchmark}} from the list of modules
in the root pom:
1) We have no performance assertions yet
2) Ubenchmark curently is a research-like module: it serves for the targeted
measurements, not for generic build-to-build testing
Here's what I get by {{mvn install -o -DskipTests -Dcheckstyle.skip=true
-Dsource.skip=true}}:
{noformat}
[INFO] Calcite ............................................ SUCCESS [ 0.940 s]
[INFO] Calcite Avatica .................................... SUCCESS [ 0.353 s]
[INFO] Calcite Avatica Server ............................. SUCCESS [ 0.040 s]
[INFO] Calcite Linq4j ..................................... SUCCESS [ 0.126 s]
[INFO] Calcite Core ....................................... SUCCESS [ 0.563 s]
[INFO] Calcite Examples ................................... SUCCESS [ 0.011 s]
[INFO] Calcite Example CSV ................................ SUCCESS [ 0.031 s]
[INFO] Calcite MongoDB .................................... SUCCESS [ 0.036 s]
[INFO] Calcite Plus ....................................... SUCCESS [ 0.062 s]
[INFO] Calcite Spark ...................................... SUCCESS [ 0.097 s]
[INFO] Calcite Splunk ..................................... SUCCESS [ 0.028 s]
[INFO] Calcite Ubenchmark ................................. SUCCESS [ 1.182 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.659 s
{noformat}
If I enable maven-source-plugin, then it takes 2 seconds per module:
{noformat}
mvn install -o -DskipTests -Dcheckstyle.skip=true
[INFO] Calcite ............................................ SUCCESS [ 1.044 s]
[INFO] Calcite Avatica .................................... SUCCESS [ 2.622 s]
[INFO] Calcite Avatica Server ............................. SUCCESS [ 2.201 s]
[INFO] Calcite Linq4j ..................................... SUCCESS [ 2.241 s]
[INFO] Calcite Core ....................................... SUCCESS [ 2.913 s]
[INFO] Calcite Examples ................................... SUCCESS [ 0.010 s]
[INFO] Calcite Example CSV ................................ SUCCESS [ 2.407 s]
[INFO] Calcite MongoDB .................................... SUCCESS [ 2.200 s]
[INFO] Calcite Plus ....................................... SUCCESS [ 2.290 s]
[INFO] Calcite Spark ...................................... SUCCESS [ 2.292 s]
[INFO] Calcite Splunk ..................................... SUCCESS [ 2.311 s]
[INFO] Calcite Ubenchmark ................................. SUCCESS [ 3.599 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 26.343 s{noformat}
Checkstyle takes 6-7 seconds:
{noformat}
mvn install -o -DskipTests -Dsource.skip=true
[INFO] Calcite ............................................ SUCCESS [ 1.511 s]
[INFO] Calcite Avatica .................................... SUCCESS [ 0.557 s]
[INFO] Calcite Avatica Server ............................. SUCCESS [ 0.274 s]
[INFO] Calcite Linq4j ..................................... SUCCESS [ 0.775 s]
[INFO] Calcite Core ....................................... SUCCESS [ 3.289 s]
[INFO] Calcite Examples ................................... SUCCESS [ 0.271 s]
[INFO] Calcite Example CSV ................................ SUCCESS [ 0.265 s]
[INFO] Calcite MongoDB .................................... SUCCESS [ 0.303 s]
[INFO] Calcite Plus ....................................... SUCCESS [ 0.331 s]
[INFO] Calcite Spark ...................................... SUCCESS [ 0.451 s]
[INFO] Calcite Splunk ..................................... SUCCESS [ 0.259 s]
[INFO] Calcite Ubenchmark ................................. SUCCESS [ 1.558 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 10.051 s
{noformat}
> Heal incremental maven compilation: each mvn install rebuilds the whole thing
> -----------------------------------------------------------------------------
>
> Key: CALCITE-484
> URL: https://issues.apache.org/jira/browse/CALCITE-484
> Project: Calcite
> Issue Type: Bug
> Affects Versions: 1.0.0-incubating
> Reporter: Vladimir Sitnikov
> Assignee: Julian Hyde
> Labels: newbie
>
> Currently the jar files are rebuild even if the source files were not
> modified.
> It would be nice to eliminate unnecessary work from the build.
> The list of bad plugins is:
> 1) maven-resources-plugin. It always regenerate files above files from
> velocity templates.
> 2) git.properties -- we might not need the exact build timestamp for dev
> builds
> 3) generate-fmpp-sources -- seems to regenerate the same parser again and
> again
> 4) hydromatic-resource-maven-plugin seems to regenerate the same
> runtime for each execution
> 5) org-apache-calcite-jdbc.properties includes build.timestamp
> If I "disable" those plugins, the subsequent builds take 6-7 seconds
> and the jars are not updated.
> Total time: 6.237 s
> Most time consuming are:
> 1.4s Calcite
> 1.2s Calcite Ubenchmark
> 0.9s Calcite Plus
> 0.8s Calcite Core
> 0.6s Calcite Spark
> http://mail-archives.apache.org/mod_mbox/incubator-calcite-dev/201411.mbox/%3CCAB%3DJe-FviBdTtSm%3D74vUSPrwQBESU4XsDpDtmGgJhS2rsp%2BdpA%40mail.gmail.com%3E
> http://mail-archives.apache.org/mod_mbox/incubator-calcite-dev/201411.mbox/%3CCAB=je-gqe83f3qhcofxniu8eq9yygos-jy4dscr-qmpuxxo...@mail.gmail.com%3E
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