csyangchsh csyangchsh
csyangchsh
/ ObjectHeader32.txt
Created
June 13, 2018 07:57
— forked from arturmkrtchyan/ObjectHeader32.txt
Java Object Header
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| |----------------------------------------------------------------------------------------|--------------------| | |
| | Object Header (64 bits) | State | | |
| |-------------------------------------------------------|--------------------------------|--------------------| | |
| | Mark Word (32 bits) | Klass Word (32 bits) | | | |
| |-------------------------------------------------------|--------------------------------|--------------------| | |
| | identity_hashcode:25 | age:4 | biased_lock:1 | lock:2 | OOP to metadata object | Normal | | |
| |-------------------------------------------------------|--------------------------------|--------------------| | |
| | thread:23 | epoch:2 | age:4 | biased_lock:1 | lock:2 | OOP to metadata object | Biased | | |
| |-------------------------------------------------------|--------------------------------|--------------------| | |
| | |
csyangchsh
/ g1_log_parser.sh
Created
February 6, 2017 01:30
— forked from roymontecutli/ g1_log_parser.sh
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| #!/usr/bin/env awk -f | |
| # Based on the idea from https://blogs.oracle.com/taylor22/entry/using_r_to_analyze_g1gc, the | |
| # script is updated to use the format of the gc logs as received with the parameters: | |
| # -XX:+UseThreadPriorities | |
| # -XX:ThreadPriorityPolicy=42 | |
| # -Xms1995M -Xmx1995M | |
| # -Xss256k -XX:StringTableSize=1000003 | |
| # -XX:SurvivorRatio=8 | |
| # -XX:MaxTenuringThreshold=1 |
csyangchsh
/ clearVar.java
Created
August 16, 2012 03:39
Clear "where" bind variable in search region
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| /* | |
| Bind variables in ADF view object | |
| 1. Kind = "viewcriteria" | |
| used in view criteria | |
| 2. Kind = "where" | |
| in where clause of query | |
| If it's marked as required, when add query component in page, there will be a search field for the variable. During runtime, if you click 'Reset' button, this field can't be cleared. | |
| We can implement a custom queryOperationListener in backing bean and bind it to query component. |