[cvsnt] Out of memory

[Tony Hoyle]

Matt Schuckmann wrote:
> 
> Um that's not what I've seen and reported. I've seen operations as 
> simple as checking to see if a tag exists take as long as 30 or 40 min 
> on a large binary ,v file. If memory servers, it appeared that it was 
> loading the entire file into memory and the server ran out of RAM and 
> started thrashing on the disk.
> 
Only cvs log reads the entire file (even that is optimised in 2.5.02 to 
use a lot less memory) - something like tags will only read the file 
header, which is going to be very little memory.

eg:
$ ls -lh /usr/local/cvs/cvsnt/configure,v
-r--r--r--  1 nobody cvs 6.9M 2005-10-02 16:02 
/usr/local/cvs/cvsnt/configure,v

$ cvs -ttt status configure 2>&1 | grep "End Rcs"
16:04:06:   -> End Rcs buffer size = 128K

$ cvs -ttt log configure 2>&1 | grep "End Rcs"
16:06:26:   -> End Rcs buffer size = 2048K

$ cvs -ttt diff -r 1.1 configure 2>&1 | grep "End Rcs"
16:07:54:   -> End Rcs buffer size = 128K
16:07:54:   -> End Rcs buffer size = 2048K
16:07:55:   -> End Rcs buffer size = 2048K

Tony