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[GitHub] [spark] MaxGekk opened a new pull request #28076: [WIP][SQL] Benchmark dates/timestamps rebasing in ORC datasource

MaxGekk opened a new pull request #28076: [WIP][SQL] Benchmark dates/timestamps rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076
 
 
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[GitHub] [spark] SparkQA commented on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
SparkQA commented on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-606513953
 
 
   **[Test build #120639 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/120639/testReport)** for PR 28076 at commit [`33694d2`](https://github.com/apache/spark/commit/33694d2dbdbd32488c6101f414fa582d960d7347).

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Posted by GitBox <gi...@apache.org>.
SparkQA removed a comment on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-606513953
 
 
   **[Test build #120639 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/120639/testReport)** for PR 28076 at commit [`33694d2`](https://github.com/apache/spark/commit/33694d2dbdbd32488c6101f414fa582d960d7347).

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[GitHub] [spark] SparkQA commented on issue #28076: [WIP][SQL] Benchmark dates/timestamps rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
SparkQA commented on issue #28076: [WIP][SQL] Benchmark dates/timestamps rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-606329306
 
 
   **[Test build #120610 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/120610/testReport)** for PR 28076 at commit [`c71829d`](https://github.com/apache/spark/commit/c71829d16a2781e5eaf98834a0a915958c451459).
    * This patch passes all tests.
    * This patch merges cleanly.
    * This patch adds no public classes.

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[GitHub] [spark] AmplabJenkins commented on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
AmplabJenkins commented on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-606597870
 
 
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SparkQA commented on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-606582636
 
 
   **[Test build #120645 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/120645/testReport)** for PR 28076 at commit [`bdb7bc7`](https://github.com/apache/spark/commit/bdb7bc7c2732018c94b0bfe0191661f6df5dfd49).

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Posted by GitBox <gi...@apache.org>.
SparkQA commented on issue #28076: [WIP][SQL] Benchmark dates/timestamps rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-606230827
 
 
   **[Test build #120610 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/120610/testReport)** for PR 28076 at commit [`c71829d`](https://github.com/apache/spark/commit/c71829d16a2781e5eaf98834a0a915958c451459).

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[GitHub] [spark] dongjoon-hyun commented on issue #28076: [WIP][SQL] Benchmark dates/timestamps rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun commented on issue #28076: [WIP][SQL] Benchmark dates/timestamps rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-606390246
 
 
   Could you file a JIRA before making a PR? You can make a `DRAFT` PR feature of GitHub for `WIP`.

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[GitHub] [spark] cloud-fan commented on issue #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
cloud-fan commented on issue #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-607072509
 
 
   it's just benchmark, no need to wait for jenkins.
   
   Thanks, merging to master/3.0!

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[GitHub] [spark] cloud-fan commented on a change in pull request #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
cloud-fan commented on a change in pull request #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#discussion_r401393426
 
 

 ##########
 File path: sql/core/benchmarks/DateTimeRebaseBenchmark-jdk11-results.txt
 ##########
 @@ -6,48 +6,89 @@ OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1
 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
 Save dates to parquet:                    Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 ------------------------------------------------------------------------------------------------------------------------
-after 1582, noop                                   9304           9304           0         10.7          93.0       1.0X
-before 1582, noop                                  9187           9187           0         10.9          91.9       1.0X
-after 1582, rebase off                            22054          22054           0          4.5         220.5       0.4X
-after 1582, rebase on                             20361          20361           0          4.9         203.6       0.5X
-before 1582, rebase off                           20286          20286           0          4.9         202.9       0.5X
-before 1582, rebase on                            22230          22230           0          4.5         222.3       0.4X
+after 1582, noop                                   9299           9299           0         10.8          93.0       1.0X
+before 1582, noop                                  9220           9220           0         10.8          92.2       1.0X
+after 1582, rebase off                            20390          20390           0          4.9         203.9       0.5X
+after 1582, rebase on                             20378          20378           0          4.9         203.8       0.5X
+before 1582, rebase off                           20069          20069           0          5.0         200.7       0.5X
+before 1582, rebase on                            20637          20637           0          4.8         206.4       0.5X
 
 OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
 Load dates from parquet:                  Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 ------------------------------------------------------------------------------------------------------------------------
-after 1582, vec off, rebase off                   12773          12866         129          7.8         127.7       1.0X
-after 1582, vec off, rebase on                    13063          13086          39          7.7         130.6       1.0X
-after 1582, vec on, rebase off                     3678           3719          61         27.2          36.8       3.5X
-after 1582, vec on, rebase on                      5078           5121          52         19.7          50.8       2.5X
-before 1582, vec off, rebase off                  12942          12972          42          7.7         129.4       1.0X
-before 1582, vec off, rebase on                   13866          13904          58          7.2         138.7       0.9X
-before 1582, vec on, rebase off                    3678           3711          43         27.2          36.8       3.5X
-before 1582, vec on, rebase on                     5621           5657          44         17.8          56.2       2.3X
+after 1582, vec off, rebase off                   12927          13017          78          7.7         129.3       1.0X
+after 1582, vec off, rebase on                    13127          13176          50          7.6         131.3       1.0X
+after 1582, vec on, rebase off                     3725           3779          91         26.8          37.3       3.5X
+after 1582, vec on, rebase on                      5134           5221          99         19.5          51.3       2.5X
+before 1582, vec off, rebase off                  13049          13061          16          7.7         130.5       1.0X
+before 1582, vec off, rebase on                   13877          13916          51          7.2         138.8       0.9X
+before 1582, vec on, rebase off                    3702           3736          56         27.0          37.0       3.5X
+before 1582, vec on, rebase on                     5567           5637          78         18.0          55.7       2.3X
 
 OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
 Save timestamps to parquet:               Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 ------------------------------------------------------------------------------------------------------------------------
-after 1582, noop                                   2983           2983           0         33.5          29.8       1.0X
-before 1582, noop                                  2979           2979           0         33.6          29.8       1.0X
-after 1582, rebase off                            17452          17452           0          5.7         174.5       0.2X
-after 1582, rebase on                             70193          70193           0          1.4         701.9       0.0X
-before 1582, rebase off                           17784          17784           0          5.6         177.8       0.2X
-before 1582, rebase on                            83498          83498           0          1.2         835.0       0.0X
+after 1582, noop                                   2988           2988           0         33.5          29.9       1.0X
+before 1582, noop                                  3000           3000           0         33.3          30.0       1.0X
+after 1582, rebase off                            16163          16163           0          6.2         161.6       0.2X
+after 1582, rebase on                             68399          68399           0          1.5         684.0       0.0X
+before 1582, rebase off                           16921          16921           0          5.9         169.2       0.2X
+before 1582, rebase on                            74425          74425           0          1.3         744.3       0.0X
 
 OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
 Load timestamps from parquet:             Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 ------------------------------------------------------------------------------------------------------------------------
-after 1582, vec off, rebase off                   15114          15151          32          6.6         151.1       1.0X
-after 1582, vec off, rebase on                    45804          45912         126          2.2         458.0       0.3X
-after 1582, vec on, rebase off                     4900           4947          56         20.4          49.0       3.1X
-after 1582, vec on, rebase on                     34599          34650          45          2.9         346.0       0.4X
-before 1582, vec off, rebase off                  15093          15174          70          6.6         150.9       1.0X
-before 1582, vec off, rebase on                   47367          47472         121          2.1         473.7       0.3X
-before 1582, vec on, rebase off                    4884           4952          80         20.5          48.8       3.1X
-before 1582, vec on, rebase on                    35831          35883          59          2.8         358.3       0.4X
+after 1582, vec off, rebase off                   15147          15258          97          6.6         151.5       1.0X
+after 1582, vec off, rebase on                    45035          45101          60          2.2         450.3       0.3X
+after 1582, vec on, rebase off                     4934           5012         100         20.3          49.3       3.1X
+after 1582, vec on, rebase on                     34263          34360          88          2.9         342.6       0.4X
+before 1582, vec off, rebase off                  15177          15220          37          6.6         151.8       1.0X
+before 1582, vec off, rebase on                   46754          46761          12          2.1         467.5       0.3X
+before 1582, vec on, rebase off                    4892           4956          61         20.4          48.9       3.1X
+before 1582, vec on, rebase on                    35989          36014          22          2.8         359.9       0.4X
+
+
+================================================================================================
+Rebasing dates/timestamps in ORC datasource
+================================================================================================
+
+OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Save dates to ORC:                        Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
+------------------------------------------------------------------------------------------------------------------------
+after 1582, noop                                   9295           9295           0         10.8          93.0       1.0X
+before 1582, noop                                  9352           9352           0         10.7          93.5       1.0X
+after 1582                                        17112          17112           0          5.8         171.1       0.5X
+before 1582                                       17979          17979           0          5.6         179.8       0.5X
+
+OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Load dates from ORC:                      Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
+------------------------------------------------------------------------------------------------------------------------
+after 1582, vec off                               20874          20905          38          4.8         208.7       1.0X
+after 1582, vec on                                 3813           3844          28         26.2          38.1       5.5X
+before 1582, vec off                              25912          25949          38          3.9         259.1       0.8X
+before 1582, vec on                                4322           4343          19         23.1          43.2       4.8X
+
+OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Save timestamps to ORC:                   Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
+------------------------------------------------------------------------------------------------------------------------
+after 1582, noop                                   3003           3003           0         33.3          30.0       1.0X
+before 1582, noop                                  3012           3012           0         33.2          30.1       1.0X
+after 1582                                        41031          41031           0          2.4         410.3       0.1X
+before 1582                                       44436          44436           0          2.3         444.4       0.1X
+
+OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Load timestamps from ORC:                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 
 Review comment:
   why the rebasing overhead in read is much smaller than write side?

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[GitHub] [spark] AmplabJenkins commented on issue #28076: [WIP][SQL] Benchmark dates/timestamps rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
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URL: https://github.com/apache/spark/pull/28076#issuecomment-606226975
 
 
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[GitHub] [spark] AmplabJenkins commented on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
AmplabJenkins commented on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-606514555
 
 
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Posted by GitBox <gi...@apache.org>.
AmplabJenkins removed a comment on issue #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-607159007
 
 
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[GitHub] [spark] cloud-fan commented on a change in pull request #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
cloud-fan commented on a change in pull request #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#discussion_r401393426
 
 

 ##########
 File path: sql/core/benchmarks/DateTimeRebaseBenchmark-jdk11-results.txt
 ##########
 @@ -6,48 +6,89 @@ OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1
 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
 Save dates to parquet:                    Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 ------------------------------------------------------------------------------------------------------------------------
-after 1582, noop                                   9304           9304           0         10.7          93.0       1.0X
-before 1582, noop                                  9187           9187           0         10.9          91.9       1.0X
-after 1582, rebase off                            22054          22054           0          4.5         220.5       0.4X
-after 1582, rebase on                             20361          20361           0          4.9         203.6       0.5X
-before 1582, rebase off                           20286          20286           0          4.9         202.9       0.5X
-before 1582, rebase on                            22230          22230           0          4.5         222.3       0.4X
+after 1582, noop                                   9299           9299           0         10.8          93.0       1.0X
+before 1582, noop                                  9220           9220           0         10.8          92.2       1.0X
+after 1582, rebase off                            20390          20390           0          4.9         203.9       0.5X
+after 1582, rebase on                             20378          20378           0          4.9         203.8       0.5X
+before 1582, rebase off                           20069          20069           0          5.0         200.7       0.5X
+before 1582, rebase on                            20637          20637           0          4.8         206.4       0.5X
 
 OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
 Load dates from parquet:                  Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 ------------------------------------------------------------------------------------------------------------------------
-after 1582, vec off, rebase off                   12773          12866         129          7.8         127.7       1.0X
-after 1582, vec off, rebase on                    13063          13086          39          7.7         130.6       1.0X
-after 1582, vec on, rebase off                     3678           3719          61         27.2          36.8       3.5X
-after 1582, vec on, rebase on                      5078           5121          52         19.7          50.8       2.5X
-before 1582, vec off, rebase off                  12942          12972          42          7.7         129.4       1.0X
-before 1582, vec off, rebase on                   13866          13904          58          7.2         138.7       0.9X
-before 1582, vec on, rebase off                    3678           3711          43         27.2          36.8       3.5X
-before 1582, vec on, rebase on                     5621           5657          44         17.8          56.2       2.3X
+after 1582, vec off, rebase off                   12927          13017          78          7.7         129.3       1.0X
+after 1582, vec off, rebase on                    13127          13176          50          7.6         131.3       1.0X
+after 1582, vec on, rebase off                     3725           3779          91         26.8          37.3       3.5X
+after 1582, vec on, rebase on                      5134           5221          99         19.5          51.3       2.5X
+before 1582, vec off, rebase off                  13049          13061          16          7.7         130.5       1.0X
+before 1582, vec off, rebase on                   13877          13916          51          7.2         138.8       0.9X
+before 1582, vec on, rebase off                    3702           3736          56         27.0          37.0       3.5X
+before 1582, vec on, rebase on                     5567           5637          78         18.0          55.7       2.3X
 
 OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
 Save timestamps to parquet:               Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 ------------------------------------------------------------------------------------------------------------------------
-after 1582, noop                                   2983           2983           0         33.5          29.8       1.0X
-before 1582, noop                                  2979           2979           0         33.6          29.8       1.0X
-after 1582, rebase off                            17452          17452           0          5.7         174.5       0.2X
-after 1582, rebase on                             70193          70193           0          1.4         701.9       0.0X
-before 1582, rebase off                           17784          17784           0          5.6         177.8       0.2X
-before 1582, rebase on                            83498          83498           0          1.2         835.0       0.0X
+after 1582, noop                                   2988           2988           0         33.5          29.9       1.0X
+before 1582, noop                                  3000           3000           0         33.3          30.0       1.0X
+after 1582, rebase off                            16163          16163           0          6.2         161.6       0.2X
+after 1582, rebase on                             68399          68399           0          1.5         684.0       0.0X
+before 1582, rebase off                           16921          16921           0          5.9         169.2       0.2X
+before 1582, rebase on                            74425          74425           0          1.3         744.3       0.0X
 
 OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
 Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
 Load timestamps from parquet:             Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 ------------------------------------------------------------------------------------------------------------------------
-after 1582, vec off, rebase off                   15114          15151          32          6.6         151.1       1.0X
-after 1582, vec off, rebase on                    45804          45912         126          2.2         458.0       0.3X
-after 1582, vec on, rebase off                     4900           4947          56         20.4          49.0       3.1X
-after 1582, vec on, rebase on                     34599          34650          45          2.9         346.0       0.4X
-before 1582, vec off, rebase off                  15093          15174          70          6.6         150.9       1.0X
-before 1582, vec off, rebase on                   47367          47472         121          2.1         473.7       0.3X
-before 1582, vec on, rebase off                    4884           4952          80         20.5          48.8       3.1X
-before 1582, vec on, rebase on                    35831          35883          59          2.8         358.3       0.4X
+after 1582, vec off, rebase off                   15147          15258          97          6.6         151.5       1.0X
+after 1582, vec off, rebase on                    45035          45101          60          2.2         450.3       0.3X
+after 1582, vec on, rebase off                     4934           5012         100         20.3          49.3       3.1X
+after 1582, vec on, rebase on                     34263          34360          88          2.9         342.6       0.4X
+before 1582, vec off, rebase off                  15177          15220          37          6.6         151.8       1.0X
+before 1582, vec off, rebase on                   46754          46761          12          2.1         467.5       0.3X
+before 1582, vec on, rebase off                    4892           4956          61         20.4          48.9       3.1X
+before 1582, vec on, rebase on                    35989          36014          22          2.8         359.9       0.4X
+
+
+================================================================================================
+Rebasing dates/timestamps in ORC datasource
+================================================================================================
+
+OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Save dates to ORC:                        Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
+------------------------------------------------------------------------------------------------------------------------
+after 1582, noop                                   9295           9295           0         10.8          93.0       1.0X
+before 1582, noop                                  9352           9352           0         10.7          93.5       1.0X
+after 1582                                        17112          17112           0          5.8         171.1       0.5X
+before 1582                                       17979          17979           0          5.6         179.8       0.5X
+
+OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Load dates from ORC:                      Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
+------------------------------------------------------------------------------------------------------------------------
+after 1582, vec off                               20874          20905          38          4.8         208.7       1.0X
+after 1582, vec on                                 3813           3844          28         26.2          38.1       5.5X
+before 1582, vec off                              25912          25949          38          3.9         259.1       0.8X
+before 1582, vec on                                4322           4343          19         23.1          43.2       4.8X
+
+OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Save timestamps to ORC:                   Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
+------------------------------------------------------------------------------------------------------------------------
+after 1582, noop                                   3003           3003           0         33.3          30.0       1.0X
+before 1582, noop                                  3012           3012           0         33.2          30.1       1.0X
+after 1582                                        41031          41031           0          2.4         410.3       0.1X
+before 1582                                       44436          44436           0          2.3         444.4       0.1X
+
+OpenJDK 64-Bit Server VM 11.0.6+10-post-Ubuntu-1ubuntu118.04.1 on Linux 4.15.0-1063-aws
+Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
+Load timestamps from ORC:                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 
 Review comment:
   why the rebasing overhead in read is much smaller than write side?

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[GitHub] [spark] AmplabJenkins removed a comment on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
AmplabJenkins removed a comment on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-606583193
 
 
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[GitHub] [spark] MaxGekk commented on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

Posted by GitBox <gi...@apache.org>.
MaxGekk commented on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-606511654
 
 
   @cloud-fan @dongjoon-hyun @HyukjinKwon Please, take a look at the PR.

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[GitHub] [spark] cloud-fan closed pull request #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

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cloud-fan closed pull request #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076
 
 
   

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[GitHub] [spark] cloud-fan commented on issue #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

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cloud-fan commented on issue #28076: [SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource
URL: https://github.com/apache/spark/pull/28076#issuecomment-607043797
 
 
   can you fix the conflicts?

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[GitHub] [spark] SparkQA commented on issue #28076: [WIP][SPARK-31311][SQL][TESTS] Benchmark date-time rebasing in ORC datasource

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