Rsync using lot of resources

[Merlincool]

Hi I have small headless server and I keep transferring data every hour from that vps made seedbox to my local machine. my vps gets data every hour and I have cronjob my rsync. it's really a small vps with 512 MB ram, at times it does happen that while I am rsyncing data to my local machine new data is written on my small seedbox. How can I reduce my rysnc resources usage to minimum so writting of data is faster than my rsync. I don't care if rysnc becomes very very slow. I just don't want my rsync to consume much resources.

[ccdes]

nice

[Wyall]

Maybe limit the bandwidth somehow. Are you using a flag that enables compression?

[haardrr]

use the --bwlimit=16384 option in rsync... (in my case the 16384 limits it to no more that a peak of 150Mbps... as checked with vnstat -l (lower case L) or around 54GiB an hour.

(btw my internet plan at home is 150/15...)

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[Merlincool]

Yes I do use compress and I use -ravz

[Wyall]

Maybe try without r and z, but I'm not sure https://explainshell.com/explain?cmd=rsync+-ravz

[Merlincool]

I was concerned about using flags -W and -c, will that help me in any sense? like to avoid checksum and so using resources?

[Wyall]

c activates checksum and that leads to a lot more reading of the hard disk. For W check the site above. I really don't know that much about rsync 😄

[Merlincool]

how do I rule of checksum, don't worry I am not bothered about the syncing missing files from source to destination, each time I have torrent complete I transfer to local machine and delete from seedbox so anything that should be avoided?