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@MaxGekk MaxGekk commented May 3, 2020

What changes were proposed in this pull request?

  • Changed to the number of rows in benchmark cases from 3 to the actual number N.
  • Regenerated benchmark results in the environment:
Item Description
Region us-west-2 (Oregon)
Instance r3.xlarge
AMI ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20190722.1 (ami-06f2f779464715dc5)
Java OpenJDK 64-Bit Server VM 1.8.0_242 and OpenJDK 64-Bit Server VM 11.0.6+10

Why are the changes needed?

The changes are needed to have:

  • Correct benchmark results
  • Base line for other perf improvements that can be checked in the same environment.

Does this PR introduce any user-facing change?

No

How was this patch tested?

By running the benchmark and checking its output.

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SparkQA commented May 3, 2020

Test build #122227 has finished for PR 28440 at commit f765eef.

  • This patch passes all tests.
  • This patch merges cleanly.
  • This patch adds no public classes.

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MaxGekk commented May 3, 2020

@cloud-fan @maropu @yaooqinn Please, review this PR.

@maropu maropu closed this in 2fb85f6 May 4, 2020
maropu pushed a commit that referenced this pull request May 4, 2020
…meBenchmark`

### What changes were proposed in this pull request?
- Changed to the number of rows in benchmark cases from 3 to the actual number `N`.
- Regenerated benchmark results in the environment:

| Item | Description |
| ---- | ----|
| Region | us-west-2 (Oregon) |
| Instance | r3.xlarge |
| AMI | ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20190722.1 (ami-06f2f779464715dc5) |
| Java | OpenJDK 64-Bit Server VM 1.8.0_242 and OpenJDK 64-Bit Server VM 11.0.6+10 |

### Why are the changes needed?
The changes are needed to have:
- Correct benchmark results
- Base line for other perf improvements that can be checked in the same environment.

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
By running the benchmark and checking its output.

Closes #28440 from MaxGekk/SPARK-31527-DateTimeBenchmark-followup.

Authored-by: Max Gekk <[email protected]>
Signed-off-by: Takeshi Yamamuro <[email protected]>
(cherry picked from commit 2fb85f6)
Signed-off-by: Takeshi Yamamuro <[email protected]>
@maropu
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maropu commented May 4, 2020

Thanks! Merged to master/3.0.

huaxingao pushed a commit to huaxingao/spark that referenced this pull request May 4, 2020
…meBenchmark`

### What changes were proposed in this pull request?
- Changed to the number of rows in benchmark cases from 3 to the actual number `N`.
- Regenerated benchmark results in the environment:

| Item | Description |
| ---- | ----|
| Region | us-west-2 (Oregon) |
| Instance | r3.xlarge |
| AMI | ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-20190722.1 (ami-06f2f779464715dc5) |
| Java | OpenJDK 64-Bit Server VM 1.8.0_242 and OpenJDK 64-Bit Server VM 11.0.6+10 |

### Why are the changes needed?
The changes are needed to have:
- Correct benchmark results
- Base line for other perf improvements that can be checked in the same environment.

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
By running the benchmark and checking its output.

Closes apache#28440 from MaxGekk/SPARK-31527-DateTimeBenchmark-followup.

Authored-by: Max Gekk <[email protected]>
Signed-off-by: Takeshi Yamamuro <[email protected]>
cloud-fan pushed a commit that referenced this pull request May 5, 2020
…g after some threshold

### What changes were proposed in this pull request?
Skip timestamps rebasing after a global threshold when there is no difference between Julian and Gregorian calendars. This allows to avoid checking hash maps of switch points, and fixes perf regressions in `toJavaTimestamp()` and `fromJavaTimestamp()`.

### Why are the changes needed?
The changes fix perf regressions of conversions to/from external type `java.sql.Timestamp`.

Before (see the PR's results #28440):
```
================================================================================================
Conversion from/to external types
================================================================================================

OpenJDK 64-Bit Server VM 1.8.0_252-8u252-b09-1~18.04-b09 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2  2.50GHz
To/from Java's date-time:                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
From java.sql.Timestamp                             376            388          10         13.3          75.2       1.1X
Collect java.sql.Timestamp                         1878           1937          64          2.7         375.6       0.2X
```

After:
```
================================================================================================
Conversion from/to external types
================================================================================================

OpenJDK 64-Bit Server VM 1.8.0_252-8u252-b09-1~18.04-b09 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2  2.50GHz
To/from Java's date-time:                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
From java.sql.Timestamp                             249            264          24         20.1          49.8       1.7X
Collect java.sql.Timestamp                         1503           1523          24          3.3         300.5       0.3X
```

Perf improvements in average of:

1. From java.sql.Timestamp is ~ 34%
2. To java.sql.Timestamps is ~16%

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
By existing test suites `DateTimeUtilsSuite` and `RebaseDateTimeSuite`.

Closes #28441 from MaxGekk/opt-rebase-common-threshold.

Authored-by: Max Gekk <[email protected]>
Signed-off-by: Wenchen Fan <[email protected]>
cloud-fan pushed a commit that referenced this pull request May 5, 2020
…g after some threshold

### What changes were proposed in this pull request?
Skip timestamps rebasing after a global threshold when there is no difference between Julian and Gregorian calendars. This allows to avoid checking hash maps of switch points, and fixes perf regressions in `toJavaTimestamp()` and `fromJavaTimestamp()`.

### Why are the changes needed?
The changes fix perf regressions of conversions to/from external type `java.sql.Timestamp`.

Before (see the PR's results #28440):
```
================================================================================================
Conversion from/to external types
================================================================================================

OpenJDK 64-Bit Server VM 1.8.0_252-8u252-b09-1~18.04-b09 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2  2.50GHz
To/from Java's date-time:                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
From java.sql.Timestamp                             376            388          10         13.3          75.2       1.1X
Collect java.sql.Timestamp                         1878           1937          64          2.7         375.6       0.2X
```

After:
```
================================================================================================
Conversion from/to external types
================================================================================================

OpenJDK 64-Bit Server VM 1.8.0_252-8u252-b09-1~18.04-b09 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2  2.50GHz
To/from Java's date-time:                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
From java.sql.Timestamp                             249            264          24         20.1          49.8       1.7X
Collect java.sql.Timestamp                         1503           1523          24          3.3         300.5       0.3X
```

Perf improvements in average of:

1. From java.sql.Timestamp is ~ 34%
2. To java.sql.Timestamps is ~16%

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
By existing test suites `DateTimeUtilsSuite` and `RebaseDateTimeSuite`.

Closes #28441 from MaxGekk/opt-rebase-common-threshold.

Authored-by: Max Gekk <[email protected]>
Signed-off-by: Wenchen Fan <[email protected]>
(cherry picked from commit bef5828)
Signed-off-by: Wenchen Fan <[email protected]>
@MaxGekk MaxGekk deleted the SPARK-31527-DateTimeBenchmark-followup branch June 5, 2020 19:48
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4 participants