Re: speed difference between using hard-linked and modular drives?

From: Anton Blanchard (anton@samba.org)
Date: Thu Nov 08 2001 - 18:59:21 EST


 
> > Are there any speed difference between hard-linked device drivers and
> > their modular counterparts?
>
> minimal. a few instructions per IO.

Its worse on some architectures that need to pass through a trampoline
when going between kernel and module (eg ppc). Its even worse on ppc64
at the moment because we have a local TOC per module which needs to be
saved and restored.

Anton
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This archive was generated by hypermail 2b29 : Thu Nov 15 2001 - 21:00:20 EST