{"id":4216,"date":"2014-03-30T09:24:05","date_gmt":"2014-03-30T09:24:05","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/problem-about-activity-monitor-collection-of-common-programming-errors\/"},"modified":"2014-03-30T09:24:05","modified_gmt":"2014-03-30T09:24:05","slug":"problem-about-activity-monitor-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/problem-about-activity-monitor-collection-of-common-programming-errors\/","title":{"rendered":"problem about activity-monitor-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/dfce9b07c3b7869fdb805e12200d4046?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nJens Erat<br \/>\nmemory mavericks activity-monitor memory-pressure<br \/>\nMavericks&#8217; Activity Monitor shows a new diagram, the &#8220;memory pressure&#8221;. Sadly, its help text only vaguely explains what exactly it measures. How is memory pressure calculated?Picture creds go to this answer from a poll question on Mavericks&#8217; best new feature.<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/7f5e391c3f1a1cb35bf8b91c491a0fbc?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nbmike<br \/>\nsoftware-recommendation command-line activity-monitor process<br \/>\nI&#8217;m looking for a better alternative for top. Both top and Activity Monitor are highly limited with regards to features. In particular, I&#8217;m interested in the following features:Limit processes by name Send different kill-signals to a process interactively, i.e. select the process from the process list and send a signal Ability to show the entire command, not only the program name (as top -c does on Linux) Show the status of each process Optional: On Linux, top also updates the command when displ<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/537262a1fa55f447898d6072791f3899?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nfbrereto<br \/>\nipad memory-leaks memory-allocation instruments activity-monitor<br \/>\nI am helping a friend hunt down a crash in an iPad application he has written. The application is pretty straightforward, transitioning between UIViews under a single UIViewController as the user goes forward and backwards through pages. The crash is pretty hard, and doesn&#8217;t drop us in the debugger or anything- the app just dies. In the console the infamous &#8216;signal &#8220;0&#8221;&#8216; message is posted, which according to this question is most likely due to the OS killing the app over memory consumption.The me<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/df47df84220da4f48db3a597f7e8d905?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nuser2369063<br \/>\nios memory-leaks activity-monitor<br \/>\nI am debugging an iPhone app that was written by someone else, it doesn&#8217;t use arc. I have tried using arc but they have a lot of old code that uses some c style void pointers, so the program crashes when I do.I have given up on that idea as a lost cause. The problem is that the allocations \/ leak tools don&#8217;t show a memory leak, but the Activity monitor shows memory being leaked every time the user swipes to change a page. (about 1.5 Meg each swipe) Needless to say the program crashes.Being a c+<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/i.stack.imgur.com\/88Cnq.jpg?s=32&amp;g=1\" \/><br \/>\nKevinSayHi<br \/>\ngoogle-chrome mavericks activity-monitor<br \/>\nI upgraded to OS X 10.9 yesterday, and since then, one Google Chrome Helper is constantly red in Activity Monitor. I checked the PID (375) in Google Chrome&#8217;s own task manager, and it is GPU Process. I don&#8217;t think it is used often, but I also fail to see why it is constantly non-responsive.Does anyone else experience the same thing? Is this a problem of GPU handling of the new OS? Maybe there are some GPU-accelerated websites\/videos (I mean video player) out there so I can test whether there is a<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/0b5ae01969bf4657b8fc2651d165c05b?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\ndaviesgeek<br \/>\nsnow-leopard battery activity-monitor<br \/>\nJust recently I noticed my battery life having a pretty significant drop and the &#8220;kernel_task&#8221; process using quite a bit of CPU (a constant 1-6% on my 2.8ghz dual-core i7, 2010 MBP). Obviously I think the kernel_task&#8217;s CPU usage is contributing to the battery drop and I need to find out why.Searching Google, it seems kernel_task is OS X&#8217;s version of Windows&#8217;s &#8220;svchost.exe&#8221; &#8211; the notorious do-everything process that you can&#8217;t ever truly debug, you have to just manually flip switches until one of<\/li>\n<\/ul>\n<p>Web site is in building<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jens Erat memory mavericks activity-monitor memory-pressure Mavericks&#8217; Activity Monitor shows a new diagram, the &#8220;memory pressure&#8221;. Sadly, its help text only vaguely explains what exactly it measures. How is memory pressure calculated?Picture creds go to this answer from a poll question on Mavericks&#8217; best new feature. bmike software-recommendation command-line activity-monitor process I&#8217;m looking for a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4216","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/4216","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=4216"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/4216\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=4216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=4216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=4216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}