> After fighting with the nfs invalidation logic for a while, I'm finally
> starting to get decent read speed from the cache. Here's a quick
> comparison of results:
>
> -------Sequential Output-------- ---Sequential Input--
> --Random--
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
> --Seeks---
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
> /sec %CPU
> old nfs 10 1487 30.2 2235 6.5 1113 9.7 1768 32.3 2479 17.7
> 535.5 19.5
>
> new nfs 7 1551 33.8 2185 5.2 2278 10.5 6078 90.7 40438 95.9
> 1394.2 25.1
>
> (I changed the file size because I'm running the nfs server on the local
> machine, and don't have enough memory for two copies of a 10M file in
> page cache.)
>
> The code still needs a little polishing, so I'll wait until 2.1.58 comes
> out to issue a patch.
>
> Regards,
> Bill
>
ZOWIE! I'm barely getting xkgdb warmed up (techies cheat if at all possible)
and the problem is already fixed. I look forward to reading that patch Sir!
-Mike