Sorry about the image. Here's in text format
<All Threads>
- org.apache.tomcat.utils.trheads.TaskThreadWrappingRunnable.run() --->
42% CPU. This is my webapp code. It's OK
- org.apache.coyote.AbstractProtocol$AsyncTimeout.run()
- AbstractProtocol.java:1138 [Wall Time] java.lang.Thread.sleep(long)
----> 38% CPU
- org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run()
- ContainerBase.java:1355 [Wall Time] java.lang.Thread.sleep(long)
------> 19%
I'm not sure what this means. is it just that the CPU is IDLE waiting for
other tasks to complete?
On 10 May 2017 at 09:53, Stevo Slavić <ssla...@gmail.com> wrote:
> Maybe sleep call is in a loop - busy waiting, and sleeping too short. Sleep
> longer, observe latency after the change. In Java 9 there will be extra
> option
> http://download.java.net/java/jdk9/docs/api/java/lang/
> Thread.html#onSpinWait--
>
> On Wed, May 10, 2017 at 9:44 AM, Oliver Fernandez <
> oliver.fernan...@marfeel.com> wrote:
>
> > While profiling my Tomcat app using YourKit, I noticed two Threads,
> > consuming 57% of total CPU, in the method Thread.sleep()
> >
> > [image: Inline images 1]
> >
> > What's this Thread.sleep() about?
> >
> >
> >
>
--
*Óliver Fernández*
Principal Architect
[image: Inline image 2]
Marfeel Solutions S.L.
Rambla Catalunya 35, Principal 2ª
08007 Barcelona, Spain
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www.marfeel.com
