On Tue, 24 Apr 2001, Ingo Oeser wrote:
> We have this kind of stuff all over the place. If we allocate
> some small amount of memory and and need some small amount
> associated with this memory, there is no problem with a little
> waste.
Little? How about quarter of kilobyte per inode? sizeof(struct inode)
is nearly half-kilobyte. And icache can easily get to ~100000 elements.
> Waste is better than fragmentation. This is the lesson people
> learned from segments in the ia32.
>
> Objects are easier to manage, if they are the same size.
So don't keep them in the same cache. Notice that quite a few systems
keep vnode separately from fs-specific data. For a very good reason.
Al
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This archive was generated by hypermail 2b29 : Mon Apr 23 2001 - 21:00:47 EST