Re: [Xen-devel] [RFC PATCH v2] Implement Batched (group) ticket lock

[Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>]

> > For baremetal we continue to have 'fully fair ticketlock' with this patch
> > series.
> But but but, we're looking at removing ticket locks. So why do we want
> to invest in them now?
I have nothing against qspinlock. I am happy to test it/add any bit to 
it if I could.
With this patch we get excellent performance for guest with the
unmodified kernel without affecting host.

My test on guest with batch_size =16,32 showed even better performance
              bs=16      bs=32
 ebizzy_0.5x   0.14       0.90
 ebizzy_1.0x   3.57       7.52
 ebizzy_1.5x  58.97      67.65
 ebizzy_2.0x 121.55     136.45





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