Re: [Xen-ia64-devel] a problem with "performance tuning TAKE 3"

[Ken Hironaka <hironaka.ken@xxxxxxxxxxxxxxxx>]

Hi Isaku,

 Your .config file did the trick and the installation went very
smoothly. Thank you for your help!

Ken

On Thu, 2006-08-17 at 16:51 +0900, Isaku Yamahata wrote:
> On Thu, Aug 17, 2006 at 03:36:19PM +0900, Ken Hironaka wrote:
> > Hi Isaku,
> > 
> >   Thank you on your advice on the changeset. The patch worked just
> > fine(except for the copyright section at 5/10 but that's no big
> > problem). I am now trying to install it all. My understanding is that
> > you have to have 
> > CONFIG_XEN_IA64_TLB_TRACK
> > CONFIG_XEN_IA64_PERVCPU_VHPT
> > options on. I would like to know how exactly you do that at compile
> > time. I'd tried adding
> > CONFIG_XEN_IA64_TLB_TRACK=y
> > CONFIG_XEN_IA64_PERVCPU_VHPT=y
> > to the top level makefile and the Rules.mk under xen/arch/ia64
> > but in either case, it has not worked.
> 
> Hi Ken.
> To give these options for xen, use .config under the xen directory.
> In your case, create "xen-ia64-unstable-PATCHED.hg/.config"
> and add the following two lines
> xen_ia64_tlb_track=y
> xen_ia64_pervcpu_vhpt=y
> 
> It is also O.K. to edit Rules.mk. But you should add 
> the above two lines. not CONFIG_XEN_IA64_xxx=y.
> FYI I use the following xen .config
> $ cat .config
> crash_debug=y
> debug=y
> verbose=y
> xen_ia64_tlb_track=y
> xen_ia64_pervcpu_vhpt=y
> perfc=y
> perfc_arrays=n
> 
> 
> > I got the following error in while make world
> > 
> > ld -g -T xen.lds.s -N \
> >     -Map map.out
> > linux-xen/head.o 
> > /home/ken/xen-ia64-unstable-PATCHED.hg/xen/common/built_in.o 
> > /home/ken/xen-ia64-unstable-PATCHED.hg/xen/drivers/built_in.o 
> > /home/ken/xen-ia64-unstable-PATCHED.hg/xen/arch/ia64/built_in.o -o 
> > /home/ken/xen-ia64-unstable-PATCHED.hg/xen/xen-syms
> > /home/ken/xen-ia64-unstable-PATCHED.hg/xen/arch/ia64/built_in.o(.text
> > +0x2722): In function `arch_domain_create':
> > /home/ken/xen-ia64-unstable-PATCHED.hg/xen/arch/ia64/xen/domain.c:416:
> > undefined reference to `tlb_track_destroy'
> > gcc -O2 -fomit-frame-pointer -DNDEBUG -Wall -Wstrict-prototypes
> > -Wdeclaration-after-statement  -D__XEN_TOOLS__ -Werror
> > -I ../../tools/python/xen/lowlevel/xc -I ../../tools/libxc -o xc_shadow
> > xc_shadow.o -L../../tools/libxc -lxenctrl
> > make[4]: *** [/home/ken/xen-ia64-unstable-PATCHED.hg/xen/xen-syms] Error
> > 1
> > make[4]: Leaving directory
> > `/home/ken/xen-ia64-unstable-PATCHED.hg/xen/arch/ia64'
> > make[3]: *** [/home/ken/xen-ia64-unstable-PATCHED.hg/xen/xen] Error 2
> > make[3]: Leaving directory `/home/ken/xen-ia64-unstable-PATCHED.hg/xen'
> > make[2]: *** [install] Error 2
> > make[2]: Leaving directory `/home/ken/xen-ia64-unstable-PATCHED.hg/xen'
> > make[1]: *** [install-xen] Error 2
> > make[1]: *** Waiting for unfinished jobs....
> 
> 
> Hmm, Anyway this is a compilation bug which depends on configuration.
> I'll fix it next post.
> Thanks.


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