Re: [Linux-decnet-user] Restore performance

[Patrick C. <pa...@ty...>]

On Fri, Apr 23, 2004 at 11:03:59AM -0300, Gustavo Boado wrote:
> Weird...I tried a backup yesterday... 1.2 GB disk on the Alpha. Backup
> took about 30 minutes, restore about 15 hours.
> I will keep trying.

OUCH! that sounds like more than just a little filesystem overhead. I can't
imagine what might cause a 30x slowdown like that.

A few things you might like to try:

- run "fal -ae -r exported -vvvv" as root and see if anything odd shows up.
- Check the fal process for disk or memory thrashing
- try backup/compare & backup/list to see if they are similarly affected.
- do a tcpdump to see if the packets start getting delayed for any reason.

I am going to be away for a week from tonight but if you have any
interesting results or ideas I'd like to see them

-- 

patrick