PostgreSQL 10.0 preview 性能增强 - pg_xact align(cacheline对齐)

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PostgreSQL 10.0 preview 性能增强 - pg_xact align(cacheline对齐)

德哥 2017-03-14 22:05:27 浏览2242
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标签

PostgreSQL , 10.0 , cacheline对齐 , pgxact


背景

cacheline对齐,可以大幅提升高并发下的性能。

Hackers,  

originally this idea was proposed by Andres Freund while experimenting with  
lockfree Pin/UnpinBuffer [1].  
The patch is attached as well as results of pgbench -S on 72-cores  
machine.  As before it shows huge benefit in this case.  
For sure, we should validate that it doesn't cause 

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