OS X's 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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What's the “fork” for getting MenuMeters to work on OS x 10.11? [duplicate]

I just updated to El Capitan 10.11, and MenuMeters quit working. In the following thread: MacOSX cpu/mem monitor in system tray (menu bar) You say: It's free and open source and there's a fork that ...
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Killing a dialog box that doesn't show up in the dock

There's lots of information out there about how to kill an application that's not responding. But what if I just have some dialog box that isn't clearly associated with any running application? In ...
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3answers
210 views

My external monitor doesn't work at full resolution with my MacBook

I've got a MacBook Pro (Early 2015, OS 10.11.2) and I've also got a Dell 2209WAf monitor, which I'm using with a VGA cable and this adaptor ...
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1answer
71 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 ...
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1answer
28 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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65 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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2answers
75 views

What is “ss_conn_service ” running on OS X?

I'm using OS X El Capitan on iMac 21.5". As an experienced user, I follow activity monitor sometimes for security of my device. For 2-3 days,"ss_conn_service" is running on my device. I cannot ...
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56 views

In activity monitor what time frame is the data sent / received data from?

In the network tab in activity monitor there is a read out of data usage showing sent and received in GB. What this dosnt tell you is over what time period this is, is it from a day, a week and month ...
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36 views

According to System Information I have one processor and 2 cores, but when I open the 'CPU-usage' window in Activity Monitor I see 4 graphs

What does this 4 graphs mean and how are they related to my 2 cores? I have a MacBook Pro (13 inch medio 2012?
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170 views

Why does Dashlane use so many ports?

I use Dashlane to store passwords, and I like it, but there's one problem I've had with it. I use Activity Monitor to see what's going on, and something strange has been happening with Dashlane ...
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35 views

What is “ImageEngine” process on Activity Monitor?

What is here "ImageEngine" that loading the CPU so much, nearly 50%? Google doesn't help. Macbook Pro mid 2011 13F1112 OS X 10.9.5
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930 views

Acceptable CPU usage for 4 core 3.4gHz i7

Creating a kiosk application for the Mac and am testing performance and CPU usage. The activity monitor shows a total of roughly 90 to 150% CPU usage for the always up, kiosk processes. My first ...
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1answer
31 views

Increase Activity monitor update frequency to less than a second

I want to use the "CPU history" to monitor how some program uses the CPU, but the update frequency of "very often (1 sec)" is not fast enough for me. The changes I want to observe happen in less than ...
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40 views

Kill Apps Using Too Much RAM

I have unfortunately been saddled with a developer laptop that isn't fast enough. Is there any app which can flag apps which use up too much RAM and prompt me so I can kill them ? For eg: Xcode , iOS ...
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11 views

Cumulative drive access per process over time?

I would like to isolate what processes are accessing drives the most over a given period of time with as much detail as possible as far as even seeing kernel level access. I have thought about ...
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1answer
29 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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1answer
41 views

Low Battery Performance - Activity Monitor Shows Faults in CPU statistics

My Macbook battery (I guess batteries is the more correct term in this new Macbook) isn't getting battery life as estimated by specs, and it is already lessened in only about 2 months. Today, I ran a ...
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1answer
32 views

ImageIdentify.com in running processes

Looking at ActivityMonitor, I saw a strange process with a URL for a name: I went to that site, and yes it looks familiar I might have been there, once, a long time ago. Definitely not at the time ...
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3k views

High CPU usage by a process called PTPCamera

On my Macbook Pro (Retina, Mid 2012) is a process, called PTPCamera, using a lot of CPU-Time . I already have killed this process but it spawned immediately again. 85% of CPU usage eats my Battery ...
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1answer
57 views

Why is search in Activity Monitor disabled?

The search on my activity monitor app is disabled/grayed out. I can't figure out how to enable it. Any help would be appreciated. Thanks! ps: mac noob here, be gentle please! :)
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193 views

Why does htop show different CPU levels for processes than top or Activity Monitor?

I installed htop through brew, real pleasure of a view compared with top. The totals across both CPUs for top align with the sum of totals per-CPU in htop. E.g. right now I see about 40% per CPU in ...
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1answer
83 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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137 views

Yosemite Activity Monitor: '% CPU' column blank for certain processes (clang compiler)

I have been a bit confused recently when installing some software updates using MacPorts. Some of the packages required compilation, and as expected the CPU usage (and fans) went up, as indicated in ...
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2k views

Report Crash ~350% CPU Yosemite

10.10.3 There is a process, I do not know how its started and what it starts, which uses ~350% of the CPU. Its performed by 'root'. When I quit it from the activity monitor it comes back straight ...
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1answer
4k views

Firefox “not responding”, can't force quit, doesn't show in activity monitor [duplicate]

I have entered a weird state Firefox was open. The icon appears in the cmd+tab task menu. In the dock it shows as "not responding". Force Quit does nothing though. Ok... but then it doesn't show ...
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443 views

OSX Yosemite uses over 500mb daily, without me using it. And only the total data received shown in Activity Monitor - no detail in specific process

Almost every day, about 560mb of data is received and I'm not downloading anything. When I check in the Activity Monitor, it shows the 560mb usage, but in the list of processes, there is hardly any ...
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2answers
76 views

Is firefox hiding from the energy monitor?

Since Firefox 38, it is no longer showing in the activity monitor in the energy tab, are other people experiencing this? How can a process hide from the energy monitor in the first place? I think ...
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1answer
179 views

Clicking on Activity Monitor's Dock icon won't maximize the window

I've got an early 2011 13" MBP running OS X 10.10.4 PB, but this issue has been happening on literally every version of Yosemite, stable and public beta, since the initial PB release. You know how if ...
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71 views

Puzzled by softwareupdated's storage usage, as reported by Activity Monitor

I want to understand what is being reported by the Activity Monitor for softwareupdated. It reports that softwareupdated has around 430MB of memory (it varies), but if I click on it it reports: ...
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1answer
67 views

Process running for several minutes in Sleep mode

My Mac OS is OS X Yosemite (Version 10.10.2). Normally I put the mac in Sleep mode before going to bed, and I realize very often that the machine starts to run in the night just for several minutes ...
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129 views

Activity Monitor: Resetting “Average Energy Impact” stats

I'm trying to diagnose ongoing energy usage on my MacBook Air, and while Activity Monitor's Energy tab is useful, I want to reset the "Average Energy Impact" stats for all processes. (It's displayed ...
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221 views

How to find out process owner of unidentified windows?

I have an odd error that I have not been able to associate with an application or PID properly. In Windows, there is Process Explorer with the very handy target function that allows you to click it ...
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4answers
5k 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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201 views

Macbook Pro Hangs/Freezes sometimes

I don't turn off my MacBook Pro very often, and sometimes it just freezes and restarts itself after a few seconds. Its very annoying, especially when I'm working on something. I contacted support a ...
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175 views

Skype is using 60% to 80% CPU

I have a Mid-2014 15" MacBook Pro with an Nvidia graphics card. Skype uses around 60% - 80% CPU on my computer when I make a call (doesn't matter if it is video or voice call). I tried doing SMC and ...
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1answer
2k views

Discoveryd & LaunchServicesd Huge Memory Consumption

I have been troubleshooting why my Mac Mini is running slow and stumbled upon this: The memory usage is in the GB! On my MacBook the two processes take under 10 MB together. Why are these procs ...
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1answer
237 views

Super high network usage OS X Yosemite

I've been monitoring Activity Monitor on my Macbook air running Yosemite for a month or two now and I've noticed my network data usage is pretty high (this is what I think). I usually reboot my ...
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1answer
195 views

Strange Process in Activity Monitor. Unable to search online

I (somewhat) recently did a fresh install, and the system was feeling a bit sluggish after installing Chrome and some extensions so I checked the Activity Monitor and found the below process. Anyone ...
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1answer
77 views

Wired memory in activity monitor

Activity monitor shows me that I have 11Gb wired but only 5Gb used for 2 processes (others are neglible). Where are other 6GB? When I try to start new virtual machine with 500M RAM it says that I do ...
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35k views

How to tell what program is launching softwareupdated?

My Macbook was running really slow after opening it up and so I opened Activity Monitor and saw one process called softwareupdated that was not responding. It didn't say it was using any CPU but my ...
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180 views

Programs running in background mac

I suspect my Macbook Pro has been hacked by sophisticated hackers who may have even customized some special malware for my computer. Is there anyway to tell from looking at the MacBook Pro Activity ...
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1answer
148 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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1answer
79 views

Application eating ~840,000,000% of my CPU

I noticed that sometime some application are using some impossibly high amount of my CPU according to the Activity Monitor, as the screenshots below illustrate. How comes Activity Monitor displays ...
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2answers
4k 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
937 views

Is there a way to show each CPU's load separately?

I'm seeking an equivalent of a common Linux based process monitor, which shows a history graph for each CPU core. This can help identify programs that are effectively using all the cores (here, ...
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1answer
249 views

Activity Monitor suddenly showing all cores in Dock icon

After upgrading my MBP from Mavericks to Yosemite, the "CPU History" option of the Activity Monitor only showed one aggregate graph. After reinstalling Yosemite from scratch, I suddenly have 8 tiny ...
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2answers
18k views

Safari 8 on Yosemite Spawning distnoted process and spiking CPU load

My Safari 8 was hijacked by Open-Search.com after updating OS to Yosemite (10.10). The effect was two fold, my home page was hijacked by Open-Search/MacKeeper and the CPU started to load spikes at ...
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137 views

How to know which apps to shutdown when there is overheating?

I once unfortunately closed a program that I found in the Activity Monitor to be using a lot of resources. A bit of Context: that day my macbook pro was suddenly heating up like crazy and the usually ...
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3answers
384 views

What does “Vector 0xdd(TMR)” do and how can I fix a problem that I'm having with it?

I am currently having problems with kernal_task using ~2GB of RAM and looking at what advice exists I ran sysdiagnose and in powermeterics.txt I found that Vector 0xdd(TMR) was doing ~20,000 ...
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502 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.