Messages in this thread | | | Date | Thu, 15 Aug 2002 22:16:47 -0400 | From | Benjamin LaHaise <> | Subject | Re: aio-core why not using SuS? [Re: [rfc] aio-core for 2.5.29 (Re: async-io API registration for 2.5.29)] |
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On Thu, Aug 15, 2002 at 07:08:30PM -0700, Linus Torvalds wrote: > > On Thu, 15 Aug 2002, Benjamin LaHaise wrote: > > > > A 4G/4G split flushes the TLB on every syscall. > > This is just not going to happen. It will have to continue being a 3/1G > split, and we'll just either find a way to move stuff to highmem and > shrink the "struct page", or we'll just say "screw those 16GB+ machines on > x86".
I wish life were that simple. Unfortunately, struct page isn't the only problem with these abominations: the system can run out of kvm for vm_area_struct, task_struct, files... Personally, I *never* want to see those data structures being kmap()'d as it would hurt kernel code quality whereas a 4G/4G split is well confined, albeit sickening.
-ben -- "You will be reincarnated as a toad; and you will be much happier." - 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/
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