[SPARK-48712] Perf Improvement for Encode with empty string and UTF-8 charset

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 4.0.0
• Component/s: SQL
• Labels: pull-request-available
• Assignee: Kent Yao
• Reporter: Kent Yao
• Created: 25/Jun/24 12:24
• Updated: 23/Sep/24 11:53
• Resolved: 27/Jun/24 06:52

Description

 Apple M2 Max
 encode:                                   Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
 ------------------------------------------------------------------------------------------------------------------------
-UTF-8                                              3672           3697          22          5.4         183.6       1.0X
+UTF-8                                             79270          79698         448          0.3        3963.5       1.0X

Issue Links

• links to: GitHub Pull Request #47096
• links to: GitHub Pull Request #48203