Messages in this thread | | | Date | Wed, 08 Jan 2003 15:03:03 -0800 (PST) | Subject | Re: [PATCH] /proc/sys/kernel/pointer_size | From | "David S. Miller" <> |
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From: Linus Torvalds <torvalds@transmeta.com> Date: Wed, 8 Jan 2003 15:04:05 -0800 (PST)
System binaries match the kernel. It's as easy as that. So what if 90% of the user binaries use 32-bit mode because it's smaller and faster? We're talking about a system binary that is _very_ intimate with the kernel.
oprofile can perfectly legitimately be used to monitor 32-bit binaries running on under a 64-bit kernel environment. In fact I expect such exercises to be very instructive. Anton Blanchard has done this already on ppc64.
And being that 64-bit sparc systems run several orders of magnitude faster than 32-bit ones, I think I'd prefer to oprofile 32-bit programs on sparc64 boxes :-)
Hey, if this is so distasteful we could just add a sys_kernel_pointer_size() to sparc64 and ppc64 and be done with it. The other choice, as mentioned, is to make every platform use u64's in the tables. - 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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