What is "Directory Service" and why does it "use up 194%" ?

What is "Directory Service" and why does it "use up 194%" on my istat CPU app monitor?
Ever since I installed Leopard I've noticed this happening more and more - especially when I install an external hard drive or unplug my ethernet line - this is plainly weird and never happened under Tiger - the temperature shoots up to 84° also - I always to a restart to get rid of it but it's kind of worrying....anybody have any ideas?
Message was edited by: Host

Had this happen myself.
It does have something to do with Spotlight/searching. Should go away after a while, or so I have heard from other users, 'cause it hasn't stopped driving me and my fan mad yet.
Am going to have my MacBook index and follow-up on indexing and whatever else it feels is necessary to finally allow me to search in peace over the weekend while locking it away where I can't hear it.
Hopefully that does the trick.
If it wasn't for things working better/faster and most things looking better I might actually consider taking Leopard off again ...

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What is DNS Services and why does it use so much data?

I have 300MB to use a month on my iPhone 4S (most recent iOS) and I'm normally pretty good with it because I'm connected to WiFi a lot. All of a sudden, my data usage spikes and my DNS services usage has gone up to 40MB. What is this and how do I keep it from spiking like this? It's incredibly annoying.
Also, any other tips on saving data while connected with the 3G? As mentioned before, I only have 300MB so I like to stretch it for the month.

DNS (Domain Name Service) is the Internet "address book" of web sites. Whenever you go to a site such as http://apple.com your browser must make calls to the DNS server specified in your Network Settings to translate "apple.com" into Apple's IP (Internet Protocol) address of 17.178.96.59. Any time you access any Internet resource (such as sending or receiving email, playing multi-player games, using a browser, Using any app that accesses data on the Internet such as news, weather, stocks, etc) one or more DNS lookups must be made. Many web sites have content from several different sites. Each site referenced on the page must also be looked up. Each query is small (~100 bytes), but they can add up.

What is kernel_task? And why does it use so much memory?

I have an iMac 27 inch late 2009 purchased new in July 2010. It has a 3.08 Ghz Intel Core 2 Duo Processor and 4 GB of Memory. I recently upgraded to Yosemite and just now was unable to save an Excel document to an external hard drive with plenty of space with the warning I did not have enough memory. I went to my activity monitor and indeed there is very little memory and at the top of the usages of memory is kernel_task? I don't know what that is and why it requires so much system memory.
Also, there is an installation I aborted for an app I realized I didnt need and for some reason something it out there still taking system memory and I get a message when I shut down that it can't install. How do I delete that.

DNS (Domain Name Service) is the Internet "address book" of web sites. Whenever you go to a site such as http://apple.com your browser must make calls to the DNS server specified in your Network Settings to translate "apple.com" into Apple's IP (Internet Protocol) address of 17.178.96.59. Any time you access any Internet resource (such as sending or receiving email, playing multi-player games, using a browser, Using any app that accesses data on the Internet such as news, weather, stocks, etc) one or more DNS lookups must be made. Many web sites have content from several different sites. Each site referenced on the page must also be looked up. Each query is small (~100 bytes), but they can add up.

What is Google Services and why is it using 50% of my battery?

This is far and away the biggest user of my battery capacity. I've been watching battery usage closely since I deferred this latest update and then my battery longevity went way down and it took a long time to charge. But I also remember in the past that Google Services has always been a pretty big user.

DNS (Domain Name Service) is the Internet "address book" of web sites. Whenever you go to a site such as http://apple.com your browser must make calls to the DNS server specified in your Network Settings to translate "apple.com" into Apple's IP (Internet Protocol) address of 17.178.96.59. Any time you access any Internet resource (such as sending or receiving email, playing multi-player games, using a browser, Using any app that accesses data on the Internet such as news, weather, stocks, etc) one or more DNS lookups must be made. Many web sites have content from several different sites. Each site referenced on the page must also be looked up. Each query is small (~100 bytes), but they can add up.

What is cookies.sqlite and why does it slow the start up of mozilla by a minute or so. I found it and deleted it,fixed the problem, but it reappears eveery time I restart mozilla.

what is cookies.sqlite and why does it slow the start up of mozilla by a minute or so. I found it and deleted it,fixed the problem, but it reappears every time I restart mozilla.

AVG reports these sqlite cookies each time firefox starts. they usually belong to tribalfusion or some other tracker. How do I block them in the first place. I thought firefox is a safe browser. Did not have this problem until I upgraded to 3.6.

What is a mackeeper and why does it keep popping up? I am brand new to mac. carol h.

What is a mackeeper and why does it keep popping up? I am brand new to mac. carol h.

Hi,
For maintenance.
http://mackeeper.zeobit.com/
Check your Applications folder. If you don't want the app, just drag it to the Trash.
IMHO you do not need this utility. Your Mac will do maintenance for you.
Carolyn :-)

What is application memory and why does my macbook pro keep running out of it?

what is application memory and why does my macbook pro keep running out of it?

There is excessive swapping of data between physical memory (that is, the memory chips on the logic board) and virtual memory (one or more files on the startup volume.) That activity is relatively slow and causes the whole system to be less responsive. It can happen for two reasons:
          A long-running process with a memory leak (a kind of bug)
          Not enough memory for your usage pattern
Please note that if the cause is a memory leak, installing more memory will not help. That's likely if you already have more than 4 GB of memory. Tracking down a memory leak can be difficult, and it may come down to a process of elimination.
These instructions are for OS X 10.9 and later. Some details may be slightly different for earlier versions of OS X.
When you notice the swap activity, open the Activity Monitor application and select All Processes from the View menu, if it's not already selected. Select the Memory tab. Click the heading of the Real Mem column in the process table twice to sort the table with the highest value at the top. If you don't see that column, select
          View ▹ Columns ▹ Real Memory
from the menu bar.
If one process (excluding "kernel_task") is using much more memory than all the others, that could be an indication of a leak. A better indication would be a process that continually grabs more and more real memory over time without ever releasing it. Here is an example of how it's done.
The processes named "Safari Web Content" render web pages for Safari. They use a lot of memory and may leak if certain Safari extensions or third-party web plugins are installed. Consider them prime suspects.
Another process often implicated in memory leaks is "inkjet4" or "inkjet8," which is a component of the HP printing software. If it's present, force-quit the process in Activity Monitor to solve the problem temporarily. Empty the print queues in the Printers & Scanners preference pane (which has a slightly different name in each recent version of OS X.) If you don't use an HP printer, reset the printing system. Otherwise, if the problem is recurrent, update the software (which may not help) or contact HP support.
"Wired" memory should be a small part of the total. That memory is not swapped, but it makes less physical memory available which may then result in swapping. If you have a lot of wired memory, that's usually an indication of a memory leak in a third-party program that modifies the operating system at a low level. Ask for guidance in that case.
If you don't have an obvious memory leak, your options are to install more memory (if possible) or to run fewer programs simultaneously.
The next suggestion is only for users familiar with the shell. For a more precise, but potentially misleading, test, run the following command:
sudo leaks -nocontext -nostacks process | grep total
where process is the name of a process you suspect of leaking memory. Almost every process will leak some memory; the question is how much, and especially how much the leak increases with time. I can’t be more specific. See the leaks(1) man page and the Apple developer documentation for details.

What is 'Backing up' and why does it take so long even if my library is identical to my ipod?

I've just plugged by ipod touch into the computer to sync it and it keeps telling me the ipod contains stuff that isnt in my library (eventhough my library is identical to the content on the ipod) and that if i dont back up i will lose this stuff, i clicked back up and now it has been backing up for over 2 hours! what is it doing and why is it taking so long?

TC has to check to see which files need to be backed up. So its going thru the file directory and looking for any changes since the last backup. Do you have a lot of files on your Mac to check? Or are they just a small number but very large. If its the former, then that might be the culprit.

What are mapping services and why they use so much cellular data?

I previously had an iphone 5 and my monthly cellular data consumption was about 250MB.
I recently switched to an iphone 5S and the cellular data usage is about 250MB per week!
I try to monitor and reduce the usage but the mapping services in system services is always very high!
What is this? Can I reduce it?

Mapping Services ( story ) :
In April 2011, iPhone and iPad users were surprised to discover that, not only was their device keeping track of where they’d been, it also was storing very detailed location information in a plain-text file on the phone. The data was derived by the cell towers and Wi-Fi hotspots the devices encountered, and was added anonymously to a crowdsourced database.
Apple later said the devices were keeping more information than intended due to a bug, and issued a patch that reduced the amount of data. But, because it was used to improve and speed up location services, the practice continued.
And now, in iOS 7, Apple has added a tool that lets you see what your iPhone knows about where you go.
If you’ve got an iPhone 4S or later running iOS 7, follow these steps:
1. Go to Settings, then Privacy > Location Services.
2. Scroll to the bottom of the list of apps that use Location Services (and feel free to marvel at how many apps do!). Tap System Services.
3. Tap on Frequent Locations, then scroll down and look at History. You’ll see at least one city there, more if you travel.
4. Tap a city. You’ll see a list of locations you’ve visited in the city.
5. Tap a location. You’ll see a list of the dates and times you visited that location.
Why in the world would Apple collect this kind of detail about your movements? It does so to enable features like Next Destination, found in the Notification Center, which is the screen you see when you swipe down from the top of the iOS display. Next Destination looks at your travel patterns and offers information about how long it will take to get to the next place you typically visit during the day.
If having all this location data collected by your iPhone makes you nervous, you can turn it off at Settings > Privacy > Location Services > System Services > Frequent Locations. Note that it is turned on by default, so if you don’t want your phone logging your whereabouts, you’ll need to turn it off.
The Next Destination feature is similar to one found in Google Now, which uses location and your habits to offer up useful information without your asking for it. Google Now is found in the Google Search app on both Android and iOS. On Android, you can add a Google Now widget to your home screen to make the feature more accessible.
In fact, Google collects similar information about you – and in greater detail - if you use its location-based products. Google stores your location data on the Internet, and you can see it on any Web browser.
Make sure you’re logged into your Google account – say, through Gmail – and then go to google.com/locationhistory. You’ll see a map showing location visits for today, but click the Dashboard link at the top of the page and you’ll see this:
To turn this off, click the gear icon in the upper right corner of the Location History page and choose History Settings. Then, click Disable and Save. There’s also a History Management link that lets you delete history items that have already been collected.
Location services are really an integral part of a ton of iOS apps, using the internal GPS system to add Instagram photos to a map, checkin with FourSquare or Facebook, or let your friends know where you are with one of many “on my way” apps, like Glympse or Twist.
If you’re battery is dying, however, the location services are the first thing you should turn off, as they suck up a lot of your iPhone, iPad, or iPod touch’s power needs, what with their background data sending and receiving and such.
Here’s how to turn them off.
Tap your Settings app to launch it, and then tap on Privacy. You’ll be able to turn the toggles OFF for any specific app that has privileges to access your GPS location by scrolling through the list and tapping them all. I do this on a fairly regular basis for both privacy and battery savings. I figure that with less apps accessing my location, the less battery power in total is being used for that function.
If you want to turn off Location Services completely, then simply tap the main toggle at the top to OFF, and you’ll stop using them. This will keep your apps that need it, like Maps or Compass, from knowing where you are, but the battery will thank you.
Follow the above steps to turn off Location Services :

".alias" file in LV 8.2 DSC - What is in there and why does it change?

Why does the alias file get updated every time I open and close the associated project WITHOUT SAVING ANYTHING ?
Repeat:
I did not save anything.
What is being saved if I did not change anything?
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

Hi all,
I can give you some reasoning behind the 'why.' The aliases file
lets the project know the location (IP) of each of the targets in the
project to facilitate communication between them. This is very
useful in Real-Time and FPGA applications containing multiple
independent targets. If you create a new RT cRIO Controller in
your project, for example, you'd find your aliases file now looks like
this:
[My Computer]
My Computer = "10.0.31.147"
[RT CompactRIO Target]
RT CompactRIO Target = "10.0.35.254"
The reason why the aliases file is updated just by opening the project
(even without saving the project) is that the project file may have
been moved to a different computer, or your IP address may have changed
since the last time it was opened. LabVIEW needs the current
address of each of the targets to be able to, among other things, send
and receive FTP files, set up front-panel communication with the
target, and properly configure shared variables. This behavior
should be present in all flavors of LabVIEW 8.2, and not just with the
DSC Module.
Message Edited by MattP on 11-21-2006 12:34 PM
Cheers,
Matt Pollock
National Instruments

Nsurlsessiond - what is this and why does it use alot of data?

Hello
Firstly
I was in a public library, uploading to my dropbox account, and all of sudden my network speed indicator/ montior showed heaps of download and fast too.
but i was not downloading anything.
I was upping to my dropbox account.
In activity monitor i noticed this service was operating "nsurlsessiond"
What is this service?
In my connection alert it tells me nsurlsessiond tried to establish a connection to apple-dnld.vo.llnwd.net on TCP port 80 (http)
Secondly, i was using my own wifi, and saw this nsurlsessiond service consuming heaps of data. Again I was upping to my dropbox account. About 1gb this time.
Now I have blocked communciation to "nsurlsessiond"
What is the impact of blocking such communication?
please see details of service in screenshot
Now after this experience, I am wondering is it apple policy to have communication from our macbook's to somwhere without us knowingly allowing it? I thought apple was respective of our privacy, or has this changed?
thankyou for your help and time.
regards
10.10.2
dropbox v3.4.4
macbook pro
Message was edited by: seaseasea added screenshot
Message was edited by: seaseasea
added device and osx

i couldnt say. it was just that i happen to be only upping, to dropbox, and then saw downloading on the monitor.
that was triggered as odd.
i rarely look at what services are going on... only if my macbook slows down or something else odd.
in both cases i was only upping to dropbox.
i dont do alot with my macbook, other than upping to dropbox laterly.
thankyou for your thinking and help.

What is .rar? and why does it spawn a .exe file on my computer?

I download things often, and have recently gone through some old discs that were burned by a pc, and downloaded them onto my new macbook pro.
Just curious what this 34544.rar thing is and why it expands, but doesnt' open.
In laymens terms, could someone fill me in?
It looks complicated. When I clicked on it, it made 2 new files there in my folder. dddd.1.exe, followed by ddd.exe-
Id like to know what that is.
Thanks for your time as well.
-an

A .rar file is a form of archive developed by Eugene Roshal, and called Roshal ARchive format (RAR.)
The contents of the archive you have is obviously a .exe file which is a DOS or Windows executable binary (hence, exe.) They do not run on Macs.
Why reward points?(Quoted from Discussions Terms of Use.)
The reward system helps to increase community participation. When a community member gives you (or another member) a reward for providing helpful advice or a solution to their question, your accumulated points will increase your status level within the community.
Members may reward you with 5 points if they deem that your reply is helpful and 10 points if you post a solution to their issue. Likewise, when you mark a reply as Helpful or Solved in your own created topic, you will be awarding the respondent with the same point values.

What is "exited?" and why does it keep asking for access to Facebook?

Has anyone else had this appear?
I'm running the iOS 7 beta and every time I use the Facebook app or Safari I get about 4 alerts on screen with the phrase:
"exited?" is requesting access to your contacts and basic information on Facebook
I have no idea what it is so I keep disallowing it... anyone got any clues? Searching the web yields no results

This isn't the place for iOS 7 talk yet.
Please ask all questions on the developer forums at
http://devforums.apple.com

What is recovery mode and why does it want me to restore my iphone?

I was downloading the new software 4.3.5 for my iphone 4 when i think the computer lost internet so it appeared with an error and i tried again but then it said "Itunes is detecting an iphone in recovery mode" then it wanted me to restore my iphone whitch im scared to do. also it spent quite alot of time on "preparing for update". now all i can get from my iphone is the picture of the cable wanting to be plugged into itunes.
please tell me what recovery mode is and how i got it. and also if there is any way ican get my iphone back with out restoring my iphone. thank you

Leave the phone connected to iTunes and let it boot the phone up again. iTunes should then try and update the firmware again once it detects the phone.

What is web.xml and why it is used?

hi,
am new to servlet technology, i tried to find a topic like this in this fourm also in google but didn't get a exact one. can anybody explain me or suggest me some resource about this.
thanx in advance.
Max

hi stevejluke,
thanx for the correct link.
nx for the correct link. but what i in doubt with is
why we should use web.xml? may be my question is very
silly, may be too basic, forgive me for that...
Thanx & Regards,
SaikatAt the most basic level:
There are several versions of the Servlet specification, You need the web.xml to tell the server which version of the spec your application conforms to so the server knows how to deal with different things.
If you have a servlet, you also need the web.xml to define what URL signals a request that should be handled by your servlet.
At this point, you need to sit down and read a book. Do what it says, blindly at first. Just do what it says (but do try to understand the 'what' of it, just don't question the 'why'). After you have a few applications running, go back and ask yourself this question again and try to see what you are using the web.xml for in those applications you have.

What is "Directory Service" and why does it "use up 194%" ?

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