how to reduce rsync system usage

[dtra]

Andrew Gideon wrote:

>dtra wrote:
>
>  
>
>>but rsync still takes up more resources than we want it to
>>it takes up to 95% (fluctuating) cpu load and a fair bit of memory too
>>
>>the cron job uses nice -19 rsync
>>but that doesn't seem to do anything, is there anyway to make it use
>>like 5% cpu or something?
>>    
>>
>
>If the other uses of your machine consume 5% of the CPU, then rsync will be
>free to use 95% of the CPU regardless of priority.  And that's a Good
>Thing: you're getting your money's worth for the machine.
>
>However, you may wish to check the man page for "nice".  If you really did
>what you wrote you did, you didn't do what you think you did <grin>.
>
> - Andrew
>
>  
>
Hi
Well i tried nice -n 19 rsync -a arguments
which i guess ran as you suggest it would
are there any commands that can limit the amount of system resources to use?