transfert rate
Posted: 01 Apr 2009, 14:23
After some struggle with sarge and etch, I finally installed lenny on my bubba 1. Everything is perfect except with ssh and rsync.
-first rsync is very slow: about 800kB/s, it took me about 3 days non-stop to make a complete backup. I usually use the following formula, via ssh or nfs with the same results:
rsync -avh --progress --delete --ignore-existing --delete-excluded --prune-empty-dirs --stats --rsh='ssh' /local/dir me@bubba:/remote/dir
- while making this long backup, i regulary ssh bubba and htop show me that "ssh me@notty" (or somthing like that) is eating 80 to 90% of the CPU load while rsync is eating the rest.
What I dont understand is why do I get these poor transfer rates between my computer and bubba while I can download an ISO with rtorrent at full speed (~2,5 MB/s) without any problem. And why does ssh eat up so much CPU?
Any answers or questions are very welcome?
-first rsync is very slow: about 800kB/s, it took me about 3 days non-stop to make a complete backup. I usually use the following formula, via ssh or nfs with the same results:
rsync -avh --progress --delete --ignore-existing --delete-excluded --prune-empty-dirs --stats --rsh='ssh' /local/dir me@bubba:/remote/dir
- while making this long backup, i regulary ssh bubba and htop show me that "ssh me@notty" (or somthing like that) is eating 80 to 90% of the CPU load while rsync is eating the rest.
What I dont understand is why do I get these poor transfer rates between my computer and bubba while I can download an ISO with rtorrent at full speed (~2,5 MB/s) without any problem. And why does ssh eat up so much CPU?
Any answers or questions are very welcome?