Messages in this thread | | | Subject | Solved with MTRR was: ISSUE: very slow (factor 100) 4-way 16GByte server, with 2.4.2 | Date | Thu, 29 Mar 2001 17:34:53 +0200 | From | Robert Suetterlin <> |
| |
Thanks everyone,
especially David, for explaining the MTRR problem to me in detail.
I could get the machine to work nicely by mapping all memory in MTRRs.
There are only two corrections I would like to make to Davids eMail: > # cat >/proc/mtrr > disable=2 > disable=3 > disable=4 > disable=5 > disable=6 > disable=7 > base=0 size=0x400000000 type=write-back > base=0x400000000 size=0x4000000 type=write-back > base=0x404000000 size=0x1000000 type=write-back > ^D
1. it is cat >| /proc/mtrr 2. I was not allowed to do `base=0 size=0x400000000 type=write-back`, because of the overlap with the memory range at base=0x0fb000000. So what I do is only disable 3-7, and then base=0x400000000 size=0x400000000.
Thanks alot,
Robert S. - 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/
| |