Questions tagged [activity-monitor]

macOS' task manager utility application. It is used to perform different tasks on computer processes, as well as monitor system resource usage.

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2answers
11k views

How to stop an app from running completely on OS X?

Few days back I installed Team Viewer on my MacBook Pro running OS X 10.9.4 Mavericks. It worked fine at the first. Now the app is stuck on the dock saying "Application not responding" and it's ...
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4answers
800 views

Activity Monitor dock icon CPU history aggregate

On my old Mac I have a CPU history icon showing single aggregate graph. On the new Mac running the same OS version and having the same number of cores I can't seem to find this option. History only ...
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2answers
10k views

What's the difference between real memory and CPU, and what are there effects on the performance of my computer?

In Activity Monitor, there are a couple fields: "PID", "Process Name", "User", "%CPU", "Threads", "Real Mem", and "Kind". I'm not familiar with the inner workings of computers and the related ...
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2answers
439 views

Why aren't my cores more busy?

just purchased a 2010 Mac Pro, running High Sierra. It has 12 lovely cores. But, when I look at the CPU activity in the CPU History half of the rows are blank (image below). Does this suggest one ...
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3answers
2k views

Mac Mini 2011 extremely hot and surprisingly slow

I just bought a Mac Mini (mid 2011) secondhand with the following specifications: 2,3 GHz Intel Core i5 8 GB 1067 MHz DDR3 512 GB SSD Intel HD Graphics 3000 512 MB I used to have a iMac 2006 earlier,...
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1answer
291 views

Activity process does not terminate?

I am using a Mac and I use Macvim for programming. If my program happens to go into an infinite loop and I have to quit Macvim and restart it due to this the program will restart but the program ...
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1answer
1k views

Why is htop producing different reports than Activity Monitor?

I'm using htop on my Mac. I put it side by side with Activity Monitor, but the reports are widely different. On Activity Monitor, I can get finder using up to 100% of CPU, while it doesn't show at ...
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2answers
1k views

How to show command of a process in activity monitor?

I want to see the exact commands of some processes in activity monitor, as most linux process monitor can do. Is it possible with activity monitor?
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2answers
1k views

Activity Monitor showing ~3,000% percent CPU under normal use

Shows huge percentages for dropbox but total is normal, and everything seems to be running fine. I have a Macbook with Intel Core2Duo
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1answer
54 views

What's this process 'collision'?

There's a process running on my machine which Activity Monitor reports is using 142% of CPU, 22 hours of CPU time and has thousands of idle interrupts. It's running under my user, and doesn't appear ...
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2answers
9k views

How to monitor CPU core usage?

I have a Macbook Pro 15" with the quad core i7. I am looking to see what if any performance decrease I could expect moving to a 13" Macbook Pro with a dual core i7. To that end I thought Activity ...
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1answer
542 views

How process hierarchy works in macOS

I'm wondering how Activity Monitor relates these two process if the child (Safari Web Content) doesn't have the ppid of the main one (Safari). pstree, which uses the ppid to organize the tree, shows ...
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1answer
674 views

Open activity monitor minimized on startup

I sometimes like to have Activity Monitor running in the dock (to see CPU usage chart in the icon at a glance). I didn't use it for some time though, but with a new mac I bought (El Capitan) I ...
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1answer
2k views

killing httpd spawns new processes

In short, I need to kill all httpd processes so I can run a particular program. When I go to Activity Monitor and Quit all of the httpd processes, a new one is immediately spawned. I'm not sure what ...
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3answers
899 views

What are the alternatives to Activity Monitor that will summarize cpu time over time?

Activity monitor is not always good if you want to see what is keeping your computer busy for a period of time. For example if you have gcc executed hundred of times it will take a lot of CPU power ...
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1answer
43 views

Is there any command line alternative to Activity Monitor that would yield the same results?

I know there's top and htop commands, but they lack a lot of information. For example there is no way to list processes from Energy tab. Or is there at least some kind of API for Activity Monitor ...
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1answer
85 views

Launchd process behavior

just wanted to ask a quick question I can't seem to find a straight answer to. What is normal "launchd" process behavior I should be seeing in Activity Monitor? Right now it is writing GB's of data ...
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1answer
33 views

Tracing real-time filesystem calls by process?

I suspect my backupd is performing a full filesystem scan. I can't tell because I don't know how to use Activity Monitor (or something else) to see what directories and files backupd is reading or ...
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1answer
622 views

What's the normal value for cached files?

My computers been randomly shutting down. I've noticed on activity monitor that cached files is almost always at 8GB+, even with no programs running. Is this a normal value? If not, how do I diagnose ...
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1answer
2k views

CPU at 100%, but no processes showing significant usage

Situation: All 4 cores maxed out. Mac noticeably lagging. Attempted Solution: (Reveals wildly contradictory information.) Closed all applications Opened Activity Monitor Totaled all Process ID ...
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1answer
783 views

In Mavericks' Activity Monitor, what is a “Zombie?”

I have Nginx installed; compiled via MacPorts, and configured to launch on start-up. When I go to the Disk tab of Activity Monitor after installing Mavericks, the nginx process(es) is listed with a ...
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1answer
2k views

Understanding active, inactive, free and swap memory allocation

this is a conceptual question that came up from an issue I have. I've been monitoring memory usage with iStat Pro and Activity Monitor for some weeks, since my MacBook Pro (OSX 10.8.4 Mountain Lion ...
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1answer
2k views

What is webfilterdnsd process?

What is webfilterdnsd process running on my machine? Its started by user "nobody". Not able to find any other information on it online. How can I get more information on processes running on my mac?
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0answers
25 views

System process logger

I have been having repeated issues with my MacBook Pro where it freezes during trivial finder tasks like scrolling through directories or opening relatively small files. Sometimes the computer is able ...
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0answers
246 views

Activity Monitor doesn't show main info?

this happens only some times . what changes is the info displayed in the lower portion of the window , what could be the issue?
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1answer
3k views

Safe way to cancel shrinking hard drive partition

I thought it would be a good idea to create another partition on my hard drive to use as a backup. I opened disk utility and configured the internal hard drive to split half between the OS partition ...
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0answers
1k views

OSX Activity monitor (energy) shows terminated terminal app with high average energy impact

I use my macbook like desktop (always connected to electricity) 95% of the time, so I never noticed this before. However, I had to use it on battery last few days and it surprised me how short the ...
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1answer
2k views

How Often Does Total 'Data Received' Reset in Activity Monitor? [duplicate]

How often does "Data Received" and "Data Sent" reset in the activity monitor pane shown below: Nothing I can think of (daily, since last restart, all time, etc.) seems correct given the numbers I'm ...
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0answers
1k views

How does Activity Monitor get the URLs related to a “Safari Web Content” process?

Does anyone know how Activity Monitor.app gets the list of URLs that are related to a Safari Web Content process? Those processes show up as com.apple.WebKit.WebContent in ps output.
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4answers
10k views

Accountsd using lots of CPU constantly

This dreaded issue started at some time after upgrade to OS X (Yosemite) 10.10.3. accountsd uses about 60% CPU constantly, making the laptop hot and noisy. I'm not using iCloud at all. Killing it ...
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4answers
13k views

Light-weight system monitor tool/app for OSX, Conky alternatives [duplicate]

On common UNIX-like computer operating systems there was extremely flexible/customizeable/lightweight tool for System Stats monitoring, called Conky. I'd like to find alternative system monitoring ...
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2answers
19k views

Am I being monitored?

I have a few questions to ask regarding the parental controls. I have a MacBook Pro OS X version 10.9.4. and it was bought by my ex to help me with my medical schooling. We’re no longer together. ...
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2answers
326 views

How can I remove remnant processes from deleted preference panes?

I discovered in Activity Monitor that I have several leftover processes running in the background that shouldn't be there anymore. I deleted these preference panes long ago with an application that ...
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1answer
61 views

How can I display Activity Monitor's “Memory” columns through Terminal?

Activity Monitor has a number of columns that show different measurements of memory usage for each process. Including: Memory Real Memory (various) Compressed Memory How can I display these for a ...
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1answer
73 views

In MacOS, how can I group the processes based on apps?

I want to know the resources used on the basis of applications. I found a duplicate, but the answer there has issues and since its over a year old, I decided to post a new one, instead of posting ...
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1answer
361 views

Group processes by apps in Activity Monitor under Memory tab

I am using OSX 10.10.5 with activity monitor 10.10.0. Mac newbie. In the memory tab, all the processes under chrome is scattered. I just want to know to how much of the resource is used by chrome all ...
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2answers
836 views

In Activity Monitor, is the percentage out of each core or out of each virtual core?

I have my new MacBook Pro with 2 cores. However, the Activity Monitor shows me 4 “virtual” cores. (I don’t really know what a “virtual core” is.) If the processor is running at maximum, what ...
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1answer
1k views

Activity Monitor showing a process that takes 600% CPU? [duplicate]

See Handbrake CPU usage... What's wrong with my activity monitor?
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1answer
1k views

Why do httpd and mysqld processes not show up in Activity Monitor?

I'm running Mountain Lions built in Apache2 server. I have started the server and I can see the web pages but I can't see any httpd process in the Activity Monitor. Same goes for MySQL. I can't see ...
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2answers
2k views

How can I see which processes are draining my macbook battery by percentage?

Android devices have a screen that shows you approximately what applications and processes are using your battery, by percentage. I'm wondering, in theory, can this be done on a MacBook? How do you ...
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1answer
42 views

What is the process „Tornit“? It wants to access Safari documents & passwords

I was using Safari a couple of days ago, when I got a pop-up window: Tornit wants to control Safari and access your documents and passwords. Do you allow it? I clicked No. Tornit is a process I ...
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1answer
711 views

Why is Adobe Acrobat using only one core for a heavy task, and how can I make it perform faster?

Adobe Acrobat is performing Optical Character Recognition on a document with thousands of pages. This is a heavy task which will take hours. Activity Monitor tells me that Acrobat is only using one ...
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1answer
279 views

Keyboard shortcut to switch between Activity Monitor tabs?

Are there keyboard shortcuts to switch between or select specific Activity Monitor View, e.g. CPU, Memory, Energy, Disk & Network? Use case example, instead of clicking with the mouse, it'd be ...
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1answer
33 views

How to know how much CPU and RAM I need for new computer?

I got a pimped up macbook pro (i7 3.3GHz i7) from late 2016 atm, but I feel like I could use a less powerful machine. I would like to find out what's my current/peak average CPU and RAM usage to see ...
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1answer
35 views

Show “Activity Monitor” in every “Desktop”

I find much joy in monitoring my Apple computer's fan roll through monitoring CPU use. However, I don't know how to make multiple "Activity Monitor" windows, each for one of my "Desktop"s. I ...
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1answer
30 views

What is the difference between Memory, Real Mem, and Compressed Mem?

I've already seen this question: What's the difference between Real, Virtual, Shared, and Private Memory? but I think it might be outdated. Specifically, there is a Memory column, as well as ...
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1answer
449 views

Missing CoreAudio process in Activity Monitor

I have always had the buzzing audio issue that comes with the 2018 MacBook Pro Models (I'm still convinced its an audio buffer size mismatch error). Up until now, I have always used the Kill CoreAudio ...
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1answer
28 views

What could cause swapping when there is no memory spike?

I had a performance issue recently, which I was able to capture in the Monitor. It looks like there was plenty of free memory, but then suddenly the graph goes red, with no real spiking. Could this ...
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1answer
101 views

What is the difference between `IO` and `Data` in the Activity Monitor?

In the Activity monitor, under the tab Disk, at the bottom center, there is a small graph which can be set to either IO or DATA The two graphs look somewhat similar. I understand that I/O very ...
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1answer
44 views

How can I determine where network data is going?

Activity Monitor always reports several kB or MB being transferred. I do not know where it's going or coming from. How can I find out?