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xen-devel
RE: [Xen-devel][Pv-ops][PATCH] Netback multiple tasklet support
> Test Case Packet Size Throughput(Mbps) Dom0 CPU Util Guests
> CPU
> Util
> w/o patch 1400 4304.30 400.33% 112.21%
> w/ patch 1400 9533.13 461.64% 243.81%
>
> BTW, when we test this patch, we found that the domain_lock in grant table
> operation becomes a bottle neck. We temporarily remove the global
> domain_lock to achieve good performance.
What are the figures with the domain_lock still present? How many VCPUs did
dom0 have (it would be good to see numbers for 2,3 and 4 VCPUs).
I'd rather see use of kthreads than tasklets as this enables more control over
QoS (I believe there are patches for this).
Thanks,
Ian
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