users@grizzly.java.net

Re: High CPU Usage on SSL utils

From: Oleksiy Stashok <oleksiy.stashok_at_oracle.com>
Date: Thu, 18 Jun 2015 19:16:10 +0200

Hi Efrat,

do you keep connections alive?
In general SSL is not for free and it's expected to be slower than plain
communication.

WBR,
Alexey.


On 18.06.15 18:14, Ben-Yosef Efrat wrote:
>
> Also, we see higher response times then before (around 50 times longer)
>
> *From:*Ben-Yosef Efrat [mailto:Efrat.Ben-Yosef_at_comverse.com]
> *Sent:* Thursday, June 18, 2015 6:54 PM
> *To:* users_at_grizzly.java.net
> *Cc:* Broide Uri; Meltser Tiran
> *Subject:* High CPU Usage on SSL utils
>
> Hi Alexey,
>
> Continuing Uri’s query about the CPU, we moved to java8 profiler and
> as you said, indeed not the select() was the issue.
>
> Now, we added the SSL to the picture (utilizing Grizzly’s SSLfilter)
> and as you can see in the attached screenshot, the
> executeDelegatedTask() method consumes a lot of CPU (we sort by
> self-tile CPU).
>
> Please advise,
>
> Thanks,
>
> Efrat
>
> cid:image001.png_at_01D0A9F5.776D0720
>
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