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From Oleg Cohen <oleg.co...@assurebridge.com>
Subject Re: Startup timing Windows vs. Mac
Date Wed, 21 Nov 2018 05:34:16 GMT
Hi JB,

Thank you for the clarification. I think the bundle load time on Windows was affected by a
large number of services in the component. I don’t know exactly the reason, but how the
OSGi container processes the bundle on startup was much slower on Windows because I had a
large number of services. I reworked my architecture to reduce the number of service components
and the startup time went down quite a bit.

Thank you,
Oleg 

> On Nov 20, 2018, at 11:55 PM, Jean-Baptiste Onofré <jb@nanthrax.net> wrote:
> 
> Hi Oleg,
> 
> bundle:update is roughly equivalent to bundle:stop, bundle:uninstall,
> bundle:install, bundle:start. It gets the "new" bundle version from the
> bundle location (that you can see with bundle:list -l).
> 
> Nothing suspicious in the bundle activator that could explain it takes
> time to stop/start on windows ?
> 
> Regards
> JB
> 
> On 21/11/2018 04:36, Oleg Cohen wrote:
>> Hi JB,
>> 
>> I don’t think the antivirus is an issue in my case.
>> 
>> I did disable Windows Defender. My test case is with a single bundle
>> that is installed via this command:
>> 
>> install reference:file://$eclipse_projects/sample.bundle.a <file://$eclipse_projects/sample.bundle.a>
>> <file:///$eclipse_projects/sample.bundle.a <file:///$eclipse_projects/sample.bundle.a>>
>> 
>> The location $eclipse_projects points to the local file system where
>> Eclipse projects for bundles reside.
>> 
>> From Active state I run command *update sample.bundle.a*
>> 
>> I see that the entire bundle start part of the update consists of two
>> parts. Right after the activation process starts I see a delay. No
>> logging occurs, even with the log level set to TRACE. Then log output
>> starts showing initialization of my bundle’s components/services.
>> 
>> The latter part runs quick on both Windows and Mac and take about 1 sec.
>> However, the former part that is silent and takes about 5 sec on Mac and
>> 20 sec on Windows. So, 4 times slower on Windows. 
>> 
>> What happens with the bundle at the start? Are files copied? I do
>> suspect it has something to do with the file IO.
>> 
>> Thank you,
>> Oleg
>> 
>> 
>>> On Nov 20, 2018, at 10:57 AM, Jean-Baptiste Onofré <jb@nanthrax.net
>>> <mailto:jb@nanthrax.net <mailto:jb@nanthrax.net>>> wrote:
>>> 
>>> Yes, first, please try with the antivirus disabled.
>>> 
>>> Regards
>>> JB
>>> 
>>> On 20/11/2018 16:26, Oleg Cohen wrote:
>>>> Hi JB,
>>>> 
>>>> Yes, it is Windows. It is exactly the same set of bundles and the
>>>> same Maven repository. Yes, there is Antivirus. I can try testing
>>>> with disabling it temporarily.
>>>> 
>>>> How can I see what is being resolved/checked/updated/downloaded? I do
>>>> notice that Karaf has these long pauses. I am sure I can run pretty
>>>> much against the local repo.
>>>> 
>>>> I would appreciate any pointers on how to speed up the startup!
>>>> 
>>>> Best regards,
>>>> Oleg
>>>> 
>>>>> On Nov 20, 2018, at 12:12 AM, Jean-Baptiste Onofré <jb@nanthrax.net
<mailto:jb@nanthrax.net>
>>>>> <mailto:jb@nanthrax.net <mailto:jb@nanthrax.net>>> wrote:
>>>>> 
>>>>> Hi Oleg,
>>>>> 
>>>>> So Windows is longer than Mac (not surprising ;)).
>>>>> 
>>>>> Did you check in term of bundles resolution ? Do the two systems use
the
>>>>> same Maven repository and network to resolve the artifacts.
>>>>> 
>>>>> I already saw such issue due to the Windows antivirus: it verified any
>>>>> artifacts downloaded by Karaf and it takes time.
>>>>> 
>>>>> Do you have antivirus on the Windows system ?
>>>>> 
>>>>> Regards
>>>>> JB
>>>>> 
>>>>> On 19/11/2018 21:12, Oleg Cohen wrote:
>>>>>> Greetings,
>>>>>> 
>>>>>> I have two systems: one Mac and one Windows. I have noticed that
>>>>>> exactly the same application with a number of bundles, both 3rd
>>>>>> party and my own, take significantly longer (1.5 vs 6 mins) on
>>>>>> Windows compared to Mac. Both systems are pretty powerful and have
>>>>>> similar resources. I was wondering if anybody has noticed the same.
>>>>>> What would be the best way to analyze the startup performance and
>>>>>> identify bottlenecks?
>>>>>> 
>>>>>> Thank you,
>>>>>> Oleg
>>>>>> 
>>>>> 
>>>>> -- 
>>>>> Jean-Baptiste Onofré
>>>>> jbonofre@apache.org <mailto:jbonofre@apache.org> <mailto:jbonofre@apache.org
<mailto:jbonofre@apache.org>>
>>>>> http://blog.nanthrax.net <http://blog.nanthrax.net/>
>>>>> Talend - http://www.talend.com <http://www.talend.com/>
>>>> 
>>> 
>>> -- 
>>> Jean-Baptiste Onofré
>>> jbonofre@apache.org <mailto:jbonofre@apache.org> <mailto:jbonofre@apache.org
<mailto:jbonofre@apache.org>>
>>> http://blog.nanthrax.net <http://blog.nanthrax.net/>
>>> Talend - http://www.talend.com <http://www.talend.com/>
>> 
> 
> -- 
> Jean-Baptiste Onofré
> jbonofre@apache.org <mailto:jbonofre@apache.org>
> http://blog.nanthrax.net <http://blog.nanthrax.net/>
> Talend - http://www.talend.com <http://www.talend.com/>

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