Replication speeds?

Nik Conwell nik at
Thu May 10 06:45:38 EDT 2007

On May 9, 2007, at 2:01 PM, Wesley Craig wrote:

> Obviously looking at more iostat information would give a better  
> idea, but I'd estimate that you are NOT I/O bound.  Sorry I can't  
> give you absolute numbers from UM, but I can share a patch that we  
> wrote that we believe has increase sync throughput substantially,  
> as evidenced by the lack of a sync backlog which we were getting  
> before we added the patch.

Thanks for the info & patch.  I applied it to the 2.3.7 test system  
but no appreciable speed increase.

Did it help you with both large replications (I'm doing a single 1.1G  
user to test) and the rolling replication?

ttcp shows the nets can do about 8.8MB/sec.


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