openstack team mailing list archive

[Kuo Hugo <tonytkdk@xxxxxxxxx>]

2012/6/22 Huang Zhiteng <winston.d@xxxxxxxxx>

> On Fri, Jun 22, 2012 at 12:28 AM, Kuo Hugo <tonytkdk@xxxxxxxxx> wrote:
> > Hi Folks ,
> >
> > I'm in progress of swift QA.
> >
> > Also interesting about the number of PUT/GET operation in your
> swift-bench
> > configuration.
> >
> > Well , I thought that swift should handle as much as I set in bench.conf.
> >
> > However , the performance degradation came after 40000+
> >
> > Does my configuration reasonable in your mind ?
> >
> > [bench]
> >     auth = http://%swift_ip%:8082/auth/v1.0
> >     user = admin:admin
> >     key = admin
> >     concurrency = 100
> >     object_size = 4
> >     num_objects = 100000
> >     num_gets = 100000
> >     delete = yes
> >
> >
> > The  performance degradation of swift
> >        PUT result from 1200/s to 400/s
> >        GET result from 1800/s to 800/s (but failures around 400)
> >        DELETE result from 800/s to 300/s (lots of failures)
> >
> > 1. Does my configuration is reasonable in reality ?
> You didn't give us the configuration of you Swift. :)
>
Hi winston
4 servers with 32GB-ram/i5 - 4cores on each server.
1GB NICs

> >
> > 2. I saw that most of failures is been log as "object-server failled to
> > connect to %storage_ip%:%port&/%device% ... connection timeout(0.5)"
> >     What's the reason cause the kind of timeout? Also the loading is very
> > low at this period and almost 0 request send to storage-nodes.
> >
> > 3. Another odd behavior , swift proxy does not consistent send requests
> to
> > storage-nodes . In my 100000 PUT period. The storage-node's loading is
> > not balanced .
> >     It might in 70% loading and 10% in next second.  Seems is a
> periodically
> > behavior.
> >     I'm really confusing about this issue.
> One generic suggestion is you may try turning auditor/replicator
> service and re-do your test to see if it performs any better.
>
Only main workers are ruuning during the test.
Main Workers means swift-object-server / swift-container-server /
swift-object-server


> >
> >
>

Thanks

> >
> > --
> > +Hugo Kuo+
> > tonytkdk@xxxxxxxxx
> > +886 935004793
> >
> >
> > _______________________________________________
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> >
>
>
>
> --
> Regards
> Huang Zhiteng
>



-- 
+Hugo Kuo+
tonytkdk@xxxxxxxxx
+ <tonytkdk@xxxxxxxxx>886 935004793