Followup to: <01bc01c1c0a6$a3c315e0$bb3147ab@amer.cisco.com>
By author: "Hua Zhong" <hzhong@cisco.com>
In newsgroup: linux.dev.kernel
>
> In the final system we are going to turn off swap. I had dreamed that Linux
> could directly use the page frame on the RAM disk instead of doing another
> copy :-)
>
However, the reply you got was completely irrelevant; he didn't answer
your question at all (even though he probably thought.)
The answer to your question is that a ramdisk lives directly in the
block cache and does not have to be copied.
You may want to consider migrating to a ramfs or tmpfs, which lives
directly in the *page* cache and therefore reduces overhead further.
-hpa
-- <hpa@transmeta.com> at work, <hpa@zytor.com> in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt <amsp@zytor.com> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Thu Feb 28 2002 - 21:00:46 EST