[infinispan-dev] A question and an observation
Bela Ban
bban at redhat.com
Mon Jul 7 07:47:33 EDT 2014
Makes sense; I'll try to get a jmc dump
On 07/07/14 13:36, Mircea Markus wrote:
>
> On Jul 7, 2014, at 10:37, Bela Ban <bban at redhat.com> wrote:
>
>>> 10x faster? That's surprising for a benchmark which is supposed to be
>>> network bound isn't it?
>>
>> I ran 2 IspnPerfTest processes on my local box with numOwners=2 (no L1
>> cache). I guess that roughly half of the calls go to the local node, and
>> there the cost of withFlags() is not amortized by the network round trip.
>
> All the reads are local as both nodes own all the data in this setup. Writes will involve RPCs, though.
> Even for local caches, the 10x performance degradation from using the flags is way too much, there must be something else at stake. If you profile it we can take a look.
>
> Cheers,
>
--
Bela Ban, JGroups lead (http://www.jgroups.org)
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