{"id":1372,"date":"2011-04-07T15:11:09","date_gmt":"2011-04-07T14:11:09","guid":{"rendered":"http:\/\/t-machine.org\/?p=1372"},"modified":"2011-04-07T15:11:09","modified_gmt":"2011-04-07T14:11:09","slug":"os-x-if-your-laptop-grinds-to-a-halt-and-its-the-os-not-the-app","status":"publish","type":"post","link":"http:\/\/new.t-machine.org\/index.php\/2011\/04\/07\/os-x-if-your-laptop-grinds-to-a-halt-and-its-the-os-not-the-app\/","title":{"rendered":"OS X: if your laptop grinds to a halt, and it&#8217;s the OS, not the app&#8230;"},"content":{"rendered":"<p>OS X still has some fragility (or bugs?) in kernel-related code, it would seem. I just had my laptop go to 150% CPU usage &#8230; with no apps running. &#8220;top&#8221; showed that the rogue process was the core kernel process (PID 0) &#8211; i.e. only way to stop it is to reboot.<\/p>\n<p>But I&#8217;ve noticed that some bugs related to the kernel can be &#8220;fixed&#8221; simply by hibernating and de-hibernating. e.g. with Wacom tablets, early versions of OS X 10.6 would often get &#8220;stuck&#8221; with the right-mouse-button permanently clicked. (IIRC, that got fixed around 10.6.3 &#8211; either by Apple or by Wacom)<\/p>\n<p>So, I tried it today: close laptop lid, wait 1 second, re-open.<\/p>\n<p>Magic! Kernel process un-f***ed itself, and system went back to normal. Many times simpler and quicker than rebooting :).<\/p>\n<p>(EDIT: although &#8230; a few minutes later, I&#8217;m now seeing 0.5 second delays on keyboard interaction and mouse movement, every few seconds. Seems the OS X kernel is still FUBAR. Gah.)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>OS X still has some fragility (or bugs?) in kernel-related code, it would seem. I just had my laptop go to 150% CPU usage &#8230; with no apps running. &#8220;top&#8221; showed that the rogue process was the core kernel process (PID 0) &#8211; i.e. only way to stop it is to reboot. But I&#8217;ve noticed [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"_links":{"self":[{"href":"http:\/\/new.t-machine.org\/index.php\/wp-json\/wp\/v2\/posts\/1372"}],"collection":[{"href":"http:\/\/new.t-machine.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/new.t-machine.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/new.t-machine.org\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/new.t-machine.org\/index.php\/wp-json\/wp\/v2\/comments?post=1372"}],"version-history":[{"count":0,"href":"http:\/\/new.t-machine.org\/index.php\/wp-json\/wp\/v2\/posts\/1372\/revisions"}],"wp:attachment":[{"href":"http:\/\/new.t-machine.org\/index.php\/wp-json\/wp\/v2\/media?parent=1372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/new.t-machine.org\/index.php\/wp-json\/wp\/v2\/categories?post=1372"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/new.t-machine.org\/index.php\/wp-json\/wp\/v2\/tags?post=1372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}