Messages in this thread | | | Date | Tue, 03 Aug 2004 16:13:40 +0200 | From | "Prakash K. Cheemplavam" <> | Subject | Re: HIGHMEM4G config for 1GB RAM on desktop? |
| |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
Jens Axboe wrote: | On Mon, Aug 02 2004, Barry K. Nathan wrote: | |>On Mon, Aug 02, 2004 at 04:02:34PM -0500, Steve Snyder wrote: |> |>>There seems to be a controversy about the use of the CONFIG_HIGHMEM4G |>>kernel configuration. After reading many posts on the subject, I still |>>don't know which setting is best for me. |> |>On my own desktop system with 1GB RAM, any highmem slowdown seems to be |>outweighed by the fact that more disk data stays cached in RAM (so I hit |>the disk much less often). | | | There's also the option of moving the mapping only slightly, so that all | of the 1G fits in low memory. That's the best option for 1G desktop | machines, imho. Changing PAGE_OFFSET from 0xc0000000 to 0xb0000000 would | probably be enough. | | Then you can have your cake and eat it too.
This works nicely for me. I wonder why this doesn't become standard behaviour in kernel. At least a lot of people would be happy about it.
Prakash -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
iD8DBQFBD52UxU2n/+9+t5gRArjwAKDhLKcV2C42O++Eqd7yFOQoURtoxgCgyt/m 5dDyjJtoF7WDzelrGzk7MGM= =fdFY -----END PGP SIGNATURE----- - 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/
| |