dev@grizzly.java.net

Re: grizzly 2.2 performance issue

From: Tigran Mkrtchyan <tigran.mkrtchyan_at_desy.de>
Date: Fri, 17 Aug 2012 16:19:21 +0200

Hi Alexey,

We had SameThreadStrategy. Now I switched to WorkerThreadStratedy.

Tigran.

On Fri, Aug 17, 2012 at 4:12 PM, Oleksiy Stashok
<oleksiy.stashok_at_oracle.com> wrote:
> Hi Tigran,
>
> thanks a lot for the info! Would be great if you can confirm these results
> next week.
> Just interesting, are you using SameThreadStrategy in your tests?
>
> Thanks.
>
> WBR,
> Alexey.
>
>
> On 08/17/2012 03:31 PM, Tigran Mkrtchyan wrote:
>>
>> Hi Alexey,
>>
>> the 2.3-SNAPSHOT is comparable with 2.1.11.
>> The 2.2.9 is ~5% slower in my simple test. We can run
>> more production level tests next week as they take ~5-6 hours per run
>> and require special setup.
>>
>> Regards,
>> Tigran.
>>
>> On Fri, Aug 17, 2012 at 2:10 PM, Tigran Mkrtchyan
>> <tigran.mkrtchyan_at_desy.de> wrote:
>>>
>>> NP. give me an hour.
>>>
>>> Tigran.
>>>
>>>
>>> On Fri, Aug 17, 2012 at 12:46 PM, Oleksiy Stashok
>>> <oleksiy.stashok_at_oracle.com> wrote:
>>>>
>>>> Tigran, before you test (if you planned) releases (2.1.7; 2.2.9), wanted
>>>> to
>>>> ask if you can try Grizzly 2.3-SNAPSHOT first?
>>>>
>>>> Thanks.
>>>>
>>>> WBR,
>>>> Alexey.
>>>>
>>>>
>>>> On 08/17/2012 11:51 AM, Oleksiy Stashok wrote:
>>>>>
>>>>> Hi Tigran,
>>>>>
>>>>> thank you for the info.
>>>>> We'll investigate that!
>>>>>
>>>>> We'll appreciate any help, which will let us narrow down the problem,
>>>>> for
>>>>> example if you have some time to try another releases
>>>>> 2.1.7<release<2.2.9 it
>>>>> would help a lot.
>>>>>
>>>>> Thanks.
>>>>>
>>>>> WBR,
>>>>> Alexey.
>>>>>
>>>>>
>>>>> On 08/17/2012 11:36 AM, Tigran Mkrtchyan wrote:
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> After lot of time spent on debugging we found that the change from
>>>>>> grizzly-2.1.7 to grizzly-2.2.9
>>>>>> drop performance of out server by 10%.
>>>>>>
>>>>>> the profiling results can be found at:
>>>>>>
>>>>>> http://www.dcache.org/grizzly-2-1.xml
>>>>>> and
>>>>>> http://www.dcache.org/grizzly-2-2.xml
>>>>>>
>>>>>> we run the same application against the server (just to remind, this
>>>>>> is a NFSv4.1 server written in java).
>>>>>>
>>>>>> Let me know if you need more info.
>>>>>> For now we will rollback to 2.1.7 version.
>>>>>>
>>>>>> Thanks,
>>>>>> Tigran.
>>>>>
>>>>>
>