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https://issues.apache.org/jira/browse/HADOOP-19655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18016204#comment-18016204
]
ASF GitHub Bot commented on HADOOP-19655:
-----------------------------------------
hadoop-yetus commented on PR #7896:
URL: https://github.com/apache/hadoop/pull/7896#issuecomment-3222853817
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 27m 44s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 0s | | No case conflicting files
found. |
| +0 :ok: | codespell | 0m 0s | | codespell was not available. |
| +0 :ok: | detsecrets | 0m 0s | | detect-secrets was not available.
|
| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
any @author tags. |
| -1 :x: | test4tests | 0m 0s | | The patch doesn't appear to include
any new or modified tests. Please justify why no new tests are needed for this
patch. Also please list what manual steps were performed to verify this patch.
|
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 44m 27s | | trunk passed |
| +1 :green_heart: | compile | 18m 7s | | trunk passed |
| -1 :x: | mvnsite | 1m 45s |
[/branch-mvnsite-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7896/2/artifact/out/branch-mvnsite-hadoop-common-project_hadoop-common.txt)
| hadoop-common in trunk failed. |
| +1 :green_heart: | shadedclient | 105m 59s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 1m 10s | | the patch passed |
| +1 :green_heart: | compile | 16m 23s | | the patch passed |
| +1 :green_heart: | cc | 16m 23s | | the patch passed |
| +1 :green_heart: | golang | 16m 23s | | the patch passed |
| +1 :green_heart: | javac | 16m 23s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| -1 :x: | mvnsite | 1m 47s |
[/patch-mvnsite-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7896/2/artifact/out/patch-mvnsite-hadoop-common-project_hadoop-common.txt)
| hadoop-common in the patch failed. |
| +1 :green_heart: | shadedclient | 43m 12s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 24m 53s | | hadoop-common in the patch
passed. |
| +1 :green_heart: | asflicense | 1m 47s | | The patch does not
generate ASF License warnings. |
| | | 223m 28s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.51 ServerAPI=1.51 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7896/2/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/7896 |
| Optional Tests | dupname asflicense compile cc mvnsite javac unit
codespell detsecrets golang |
| uname | Linux 4727479d09e6 5.15.0-144-generic #157-Ubuntu SMP Mon Jun 16
07:33:10 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 58baa6eb96c75dd288767f650918073c5c094a6f |
| Default Java | Red Hat, Inc.-1.8.0_312-b07 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7896/2/testReport/ |
| Max. process+thread count | 3133 (vs. ulimit of 5500) |
| modules | C: hadoop-common-project/hadoop-common U:
hadoop-common-project/hadoop-common |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7896/2/console |
| versions | git=2.27.0 maven=3.6.3 |
| Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
This message was automatically generated.
> Add RISC-V Zbc (CLMUL) hardware-accelerated CRC32/CRC32C implementation
> -----------------------------------------------------------------------
>
> Key: HADOOP-19655
> URL: https://issues.apache.org/jira/browse/HADOOP-19655
> Project: Hadoop Common
> Issue Type: Improvement
> Components: hadoop-common, performance
> Affects Versions: 3.5.0
> Reporter: Ptroc
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.5.0
>
>
> This patch introduces hardware-accelerated CRC32 and CRC32C algorithms for
> RISC-V platforms supporting the Zbc extension (CLMUL instructions) in
> bulk_crc32_riscv.c.
> Key changes:
> * Implements optimized CRC32 and CRC32C routines using CLMUL instructions
> for zlib and Castagnoli polynomials.
> * Automatically switches to hardware acceleration when Zbc is available,
> otherwise falls back to generic table-based software implementation.
> * Maintains compatibility with platforms lacking Zbc support.
> This optimization improves CRC performance on RISC-V CPUs with Zbc extension.
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