View Single Post
Posts: 915 | Thanked: 3,209 times | Joined on Jan 2011 @ Germany
#8
(de)compressing data in ramzswap will need CPU power which in case of our Cortex A8 may easily put the CPU to full load.
So the performance impact of using ramzswap is highly task-dependent. If you do nothing else but RAM I/O you'll notice a gain compared to real swap I/O. But if you have a high CPU load anyway due to the task you're running it's likely that the additional load caused by the (de)compression will even slow down your task compared to reading/writing data from/to swap but without a compression algorithm involved.

bottom line:
Comparing ramzswap performance results makes no sense without saying which task was benchmarked.
 

The Following 5 Users Say Thank You to sulu For This Useful Post: