2013/01/15 7:41, Luck, Tony wrote:
hm, why. Obviously SRAT support will improve things, but is it actually unusable/unuseful with the command line configuration?
Users will want to set these moveable zones along node boundaries (the whole purpose is to be able to remove a node by making sure the kernel won't allocate anything tricky in it, right?)
Yes
So raw addresses are usable ... but to get them right the user will have to go parse the SRAT table manually to come up with the addresses.
I don't think so because user can easily get raw address by kernel message in x86. Here are kernel messages of x86 architecture. --- [ 0.000000] SRAT: Node 0 PXM 0 [mem 0x00000000-0x7fffffff] [ 0.000000] SRAT: Node 0 PXM 0 [mem 0x100000000-0x7ffffffff] [ 0.000000] SRAT: Node 1 PXM 2 [mem 0x1000000000-0x17ffffffff] [ 0.000000] SRAT: Node 2 PXM 3 [mem 0x1800000000-0x1fffffffff] [ 0.000000] SRAT: Node 3 PXM 4 [mem 0x2000000000-0x27ffffffff] [ 0.000000] SRAT: Node 4 PXM 5 [mem 0x2800000000-0x2fffffffff] [ 0.000000] SRAT: Node 5 PXM 6 [mem 0x3000000000-0x37ffffffff] [ 0.000000] SRAT: Node 6 PXM 7 [mem 0x3800000000-0x3fffffffff] [ 0.000000] SRAT: Node 7 PXM 1 [mem 0x800000000-0xfffffffff] --- Thanks, Yasuaki Ishimatsu
Any time you make the user go off and do some tedious calculation that the computer should have done for them is user-abuse. -Tony
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