RedHat - Memory Leak?

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I've noticed a strange issue with my recent RedHat install. I installed ReHat 7.2 Developer's Suite on my Asus laptop. Installation went through normal, and everything boots up ok. I have noticed though if I close the lid (I believe that puts it in Hibernate Mode) and just wake the computer over the course of a few days the overall speed drops very low. Videos on youtube will get choppy and when I goto power down the system freezes.
Now I can simply shutdown each night as an easy solution, but if at all feasible I'd like to address the underlying issue. It's acting like a memory leak but I don't see anything obvious, any suggestions as to what I can look for?

Thanks,

PC
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Responses

PS Guru 6494 points
13 April 2016 10:41 PM

Peter,

Have you collected any metrics that suggest it's a memory leak? have you looked at the amount of free memory after wake from hibernate? or if any processes are consuming a large amount of memory?

I think a more likely scenario is that the CPU clock speed is being dropped during the hibernate to preserve power but is not being corrected when you exit hibernate.

This article may assist in troubleshooting:

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Power_Management_Guide/cpufreq_governors.html

PC Newbie 10 points
14 April 2016 11:43 AM

I doubt it's a memory leak, but that was the best way of describing the symptoms. I'm now waiting for the next slow down to compare to my normal state processes and hardware resource allocation. This is a fresh install of Red Hat and I have no additional software installed at the moment, which is what made the matter so concerning.

The CPU clock speed is a great point, thanks PixelDrift.

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