Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [PATCH] Re: UNWIND_INFO slowdown in -mm1 | Date | Wed, 18 Oct 2006 12:50:41 +0200 |
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On Tuesday 17 October 2006 17:48, Jan Beulich wrote: > >in 2.6.18-mm1 we are seeing _really_ long delays in the unwind code. > >(full trace attached) On an Athlon64 3800+ CPU: > > Below patch should help, can you try it out? Short of the linker > supporting building a binary lookup table at build time, it creates > one as soon as the bootmem allocator is usable (so you'll continue > using the linear lookup for the first [hopefully] few calls). > The code should be ready to utilize a build-time created table once > a fixed linker becomes available.
I added the patch now, thanks.
Not sure this is still .19 material though or better delayed for .20. What do you think?
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