On 27 March 2013 14:29, Mark Rogers <span dir="ltr">&lt;<a href="mailto:mark@quarella.co.uk" target="_blank">mark@quarella.co.uk</a>&gt;</span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

Why would X CPU be so high, and what can I do about it?<br></blockquote><div></div></div><div><br></div><div>Additional info:</div><div><br></div><div>CPU usage hit 100% (and was sustained around 90%) so I did some more digging.</div>

<div><br></div><div>I had kate (test editor) running, and killing that dropped X CPU usage down to around 30% briefly (several seconds), so I thought that was the cause. But it&#39;s now back to ~100% and I&#39;m not using the PC (I switched to a different PC to send this email).</div>

<div><br></div><div>Next I killed LibreOffice, and once again it dropped to about 20-30% - again for several seconds, but it&#39;s now creeping up again (currently ~60%).</div><div><br></div><div>Neither kate of LO were in focus when CPU usage was at 100%. I&#39;m currently using about 25% of my 16GB RAM and haven&#39;t ever seen it go close to 100% even with a gazillion tabs open in Chrome and Firefox.</div>

<div><br></div><div>I have previously switched off desktop effects and that made no difference to CPU usage. &quot;kwin --replace &amp;&quot; doesn&#39;t help, but logging out and back in again does (for a while).</div><div>

<br></div><div>Thoughts?</div>-- <br><pre cols="78">Mark Rogers // More Solutions Ltd (Peterborough Office) // 0844 251 1450<br>Registered in England (0456 0902) @ 13 Clarke Rd, Milton Keynes, MK1 1LG</pre>