Michael Smith has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/20265 )

Change subject: IMPALA-12314: Pre-compile LLVM bytecode with Os
......................................................................


Patch Set 6:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/20265/6//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/20265/6//COMMIT_MSG@16
PS6, Line 16: With codegen cache disabled we see across-the-board improvement:
            : 
+----------+-----------------------+---------+------------+------------+----------------+
            : | Workload | File Format           | Avg (s) | Delta(Avg) | 
GeoMean(s) | Delta(GeoMean) |
            : 
+----------+-----------------------+---------+------------+------------+----------------+
            : | TPCH(42) | parquet / none / none | 3.28    | -2.33%     | 2.44  
     | -3.42%         |
            : 
+----------+-----------------------+---------+------------+------------+----------------+
> Impressive numbers!
Further down are measurements with codegen cache enabled. The only significant 
breakout is Q9, where it shows measurable improvement in execution time for a 
few fragments. So I think we are seeing some execution improvement, although 
it's a bit mixed.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I6dd1a07ce63dbc2c27b00f450e11eceaa7bb0822
Gerrit-Change-Number: 20265
Gerrit-PatchSet: 6
Gerrit-Owner: Michael Smith <michael.sm...@cloudera.com>
Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com>
Gerrit-Reviewer: Daniel Becker <daniel.bec...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Joe McDonnell <joemcdonn...@cloudera.com>
Gerrit-Reviewer: Michael Smith <michael.sm...@cloudera.com>
Gerrit-Reviewer: Yida Wu <wydbaggio...@gmail.com>
Gerrit-Comment-Date: Mon, 31 Jul 2023 17:02:32 +0000
Gerrit-HasComments: Yes

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