Re: [Xen-devel] [PATCH 0 of 5] Add credit2 scheduler (EXPERIMENTAL)

[George Dunlap <george.dunlap@xxxxxxxxxxxxx>]

I have not measured cache / TLB misses with this workload yet.  In the 
past I've instrumented the scheduler trace records in Xen to include 
performance counters such as instructions executed and cache / tlb 
misses, and then used xenalyze 
(http://xenbits.xensource.com/ext/xenalyze.hg) to analyze them.  But the 
functionality for both capture and analysis was never standardized or 
added to mainline.
I'd be happy to help point you in the right direction if you're 
interested in investing in that approach. :-)
-George

Naresh Rapolu wrote:
> Hello George,
>
> How did you measure  Cache/ TLB misses etc while using/profiling this 
> new scheduler ?  Any tool that you`ve used which works with Xen ?
> Thanks,
> Naresh Rapolu.
> PhD Student, Computer Science,
> Purdue University.
>
> George Dunlap wrote:
>   
> > This patch series introduces the credit2 scheduler.  The first two patches
> > introduce changes necessary to allow the credit2 shared runqueue functionality
> > to work properly; the last two implement the functionality itself.
> >
> > The scheduler is still in the experimental phase.  There's lots of 
> > opportunity to contribute with independent lines of development; email
> > George Dunlap <george.dunlap@xxxxxxxxxxxxx> or check out the wiki page
> > http://wiki.xensource.com/xenwiki/Credit2_Scheduler_Development for ideas
> > and status updates.
> >
> > 19 files changed, 1453 insertions(+), 21 deletions(-)
> > tools/libxc/Makefile                      |    1 
> > tools/libxc/xc_csched2.c                  |   50 +
> > tools/libxc/xenctrl.h                     |    8 
> > tools/python/xen/lowlevel/xc/xc.c         |   58 +
> > tools/python/xen/xend/XendAPI.py          |    3 
> > tools/python/xen/xend/XendDomain.py       |   54 +
> > tools/python/xen/xend/XendDomainInfo.py   |    4 
> > tools/python/xen/xend/XendNode.py         |    4 
> > tools/python/xen/xend/XendVMMetrics.py    |    1 
> > tools/python/xen/xend/server/SrvDomain.py |   14 
> > tools/python/xen/xm/main.py               |   82 ++
> > xen/arch/ia64/vmx/vmmu.c                  |    6 
> > xen/common/Makefile                       |    1 
> > xen/common/sched_credit.c                 |    8 
> > xen/common/sched_credit2.c                | 1125 +++++++++++++++++++++++++++++
> > xen/common/schedule.c                     |   22 
> > xen/include/public/domctl.h               |    4 
> > xen/include/public/trace.h                |    1 
> > xen/include/xen/sched-if.h                |   28 
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-devel
> >   
> >     
>   

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