Re: [reiserfs-list] Re: benchmarks

[Hans Reiser <reiser@xxxxxxxxxxx>]

Nikita Danilov wrote:
 
> For each open file you have:
> 
>  struct file (96b)
>  struct inode (460b)
>  struct dentry (112b)
> 
> at least. This totals to 668M of kernel memory, that is, unpageable.
> All files are kept in several hash tables and hash-tables are known to
> degrade. Well, actually, I am afraid current Linux kernels cannot open
> 1e6 of files.

You don't have to do things this stupidly.
But even if you do, you have shown that a server that cannot handle the load 
from a million files
receiving IO would be burdened by the overhead of keeping them open.  Not sure 
what your point is.

Hans