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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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
15 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
27 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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3answers
310 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
6k views

How do I kill a process that won't die?

I'm unable to kill a process using any of the techniques I'm aware of ("Force Quit" in Activity Monitor, top, killall from the Terminal) and wonder if there are some additional steps I can take. ~ ...
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1answer
200 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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7answers
31k views

How do I debug an out-of-control “kernel_task” process?

Just recently I noticed my battery life having a pretty significant drop and the "kernel_task" process using quite a bit of CPU (a constant 1-6% on my 2.8ghz dual-core i7, 2010 MBP). Obviously I think ...
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1answer
182 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
54 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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8answers
28k views

How to monitor file access for an OS X application?

I am looking for the OS X corespondent of FileMon, that was later included in ProcessMon. BTW, it is essential to be able to filter by process.
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2answers
13k views

How does 'stuck' (in results of 'top') relate to 'not responding' (in Activity Monitor), 'spin' or 'hang'?

In results of top commands, I sometimes see stuck. Apple's top(1) OS X Manual Page does not explain this use of the word. How, if it all, does stuck relate to the following? not responding – ...
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4answers
3k 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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1answer
34 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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3answers
4k views

How many cores does a Mid 2012 Macbook Air have?

I checked the specs, and the i5-3427U CPU has 2 cores. But the Activity Monitor shows 4 little charts for the CPU, so it looks like 4 cores. Which is correct? Why does the Activity Monitor have 4 ...
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1answer
40 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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1answer
57 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
68 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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2answers
732 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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284 views

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

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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1answer
257 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
65 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
553 views

HP Product Research on Activity Log

I'm seeing an item on my activity monitor called 'HP Product Research.' I assume it's associated with some HP Printer drivers that I no long need, and have have removed, but this tracker keeps ...
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58 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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2answers
25k 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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6answers
84k views

What is installd, and why is it eating my CPU?

My Macbook is frying my lap, and the CPU monitor is going crazy: over 200% CPU being used by something called "installd". What is it? Can I kill it? (OS X 10.8.)
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1answer
53 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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71 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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0answers
95 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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1answer
150 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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130 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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2answers
2k 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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7answers
8k views

What's triggering my Finder's CPU binges?

A few times a week, the Finder on my Macbook shoots up to around 100% CPU use, and the fans start blasting. I've done everything I can think of - repaired permissions, rebooted, trashed preferences, ...
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1answer
128 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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2answers
16k 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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1answer
62 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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8answers
14k views

How can I see bandwidth usage on a Mac?

I am having internet problems and the ISP technicians suggested that something is using my bandwidth. Is there a software to monitor which processes use how much bandwidth?
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146 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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2answers
5k 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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3answers
26k views

What scale or measure does Mavericks' and Yosemite's “memory pressure” adhere to?

Mavericks' (and also Yosemite's) Activity Monitor shows a new diagram, the memory pressure. Sadly, its help text only vaguely explains what exactly it measures. How is memory pressure calculated? ...
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999 views

What is “Software Update” doing when it says “Checking for new software”?

"Software Update" seems to take a long time. What's it doing? Utilities -> Activity Monitor yields: CPU usage low ( 1% - 2% ) by the "Software Update" process. + network traffic inbound, ...
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2answers
1k 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
107 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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3answers
786 views

Is there a htop-on-linux like alternative for top / Activity Monitor on OS X?

I'm looking for a better alternative for top. Both top and Activity Monitor are highly limited with regards to features. In particular, I'm interested in the following features: Limit processes by ...
2
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1answer
73 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 ...
8
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4answers
784 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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2answers
27k views

how to start/stop/restart processes

As a new comer from Windows OS, I wonder how to start/stop/restart a service on Mac OS X Snow Leopard 10.6.8 ?(it's straight forward on Windows using its Task Manager). I tried Activity Monitor, but ...
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2answers
3k views

Why does speech recognition take up 1 GM or RAM suddenly? And GMail in Safari 738 MB?

I did enable speech recognition just in case, but very rarely use it, and I did not remember even accidentally activating it since bootup. Now I simply have a few apps running under Mavericks, and I ...
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3answers
774 views

What do the appleprofilepolicyd and wdhelper processes do?

I found in activity monitor appleprofilepolicyd and wdhelper but after googling a while didn't found any interesting information: wdhelper - could be a webdrive or webdav - found only wdhelper.dll ...
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157 views

How to group cpu cores in Activity Monitor (Mavericks 10.9.2)?

I've got MacBook Pro with 4 cores and Hyper-Threading(HT). I've also got a MacBook Air with two cores and HT. On both devices I've set Activity Monitor to show CPU History (View -> Dock Icon -> Show ...