Why does my Macbook slow down every 4-5 seconds?

I am a big gamer nerd, and recently i have been moving over from x-box to computer.
I have recently noticed when i am playing high graphics games, or any game that takes a good amount of graphics, my computer seems to slow down alot every few seconds.
For Minecraft, i can play it on all the best settings and it will run perfectly fine for 3 seconds, then i get about 8 fps for one second and it repeats. It gets really annoying especially when it is in an intense moment, (or when it makes me fall into lava) This also becomes a big concern on games like Left 4 Dead, it makes these games (that my computer CLAIMS it can handle perfectly) almost unplayable.
This seems to become more apparent as my computer heats up.
Why does my computer do this? and Is there a way to make it stop?

Good that "big gamer nerds" are starting to use the Mac. Not long ago, there were hardly any good games around. Going backwards, yes, it's going to make the MBP run hotter. It's using the max amount of everything running.
To really help you, we would need the exact model of MBP. For example, if you have 15 or 17", you need to make sure you're running with the discrete video card (nvidia or AMD) instead of the integrated Intel version (which is good enough for TV viewing and web browsing). Also, you need to make sure you maximize memory. When I play a game (I only play Starcraft), I shut down all other programs, especially anything that runs in the background (like a twitter feed, though that really doesn't use too many resources). You can use Activity Monitor (it's in your Utility folder) to see what's sucking resources on your computer.
Remember, the game companies want to sell as many games as possible. So they give computer spects that will just barely run the game if you tweak every setting. You want to be way over the minimum settings in processor speed, memory, disk space etc.
Minecraft has known framerate issues on the Mac port of the game. It has nothing to do with you, your Mac, or anything, but the quality of code from the developer.

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Why does my macbook shut down when I am watching a film using airplay on apple TV?

why does my macbook shut down when I am watching a film using airplay on apple TV?

It appears to shut down and all the open programmes are closed

Why does Photoshop keep slowing down?

I've been using Adobe Photoshop CS5.1 for two years now, and for some reason it seems to have the problem of slowing down after using it for a while, so if I'm working on a project I have to keep closing it and reopening it to get it fast again. It's weird because it doesn't seem to matter how much stuff is on the canvas, it's just how much I've drawn and hit undo and erased or did anything, After like 5 minutes of straight work it just gets too slow for me to work in, like when I switch tools or change the color it takes a couple seconds to respond. So literally every couple minutes I have to restart Photoshop and open the same file.
What's really odd is that sometimes Photoshop will work perfectly fine and stay lightning fast for hours. Like, for the last couple of months it's been 100% fine, but since a few days ago it started to have this "slowing down" issue again. Every couple months it seems to decide to be perfectly fine or just really annoying. I didn't change anything in my computer.
It can't be my computers specs or my settings in Photoshop, but I will tell you all of that anyway.
OS - Windows 7 64-bit
CPU - Intel Core 2 Quad Q6600 @ 3.0GHz
RAM - 12GB DDR3 @ 1333MHz

There is no malware scanner running, in fact I have tried closing out all other applications and unnecessary processes to help improve performance. No luck.
Also, my post actually wasn't quite finished, but my internet shut off on me last night and I guess that just automatically posted whatever I had done before then. What's even better is that the forums won't allow me to edit it. What great features!
Anyway, here's the FULL spec sheet of my computer...
OS - Windows 7 64-bit
CPU - Intel Core 2 Quad Q6600 @ 3.0GHz
RAM - 12GB DDR3 @ 1333MHz
GPU - NVIDIA GeForce GTS 450 1GB
Storage - 1x 128GB SSD (OS installed on), 1x 750GB HDD, 1x 160GB HDD
I have the 64-bit version of Photoshop CS5.1 Extended, installed on the SSD. Here's the settings I have in the preferences:
Memory Usage - 100%
Scratch Disks - All 3, SSD 1st, 750GB HDD 2nd, 160GB HDD 3rd
History States - 100
Cache Levels - 8
Cache Tile Size - 1028K
I have fiddled with these settings and restarted Photoshop countless times. In the end it's the same exact result: Photoshop slows down after a few minutes of work and I have to restart it. I have about 50GB free on the SSD, 150GB free on the 750GB, and about 140GB free on the 160GB.
I don't understand why it gets so slow even when my RAM usage only makes it up to about 45%. Why doesn't it just utilize ALL of the memory like I told it to?
I've tried setting cache to 1, 2, and 4, same result. Cache tile size to all the different settings, same result. History states to an extremely low level like 10, same result. I just don't understand why Photoshop is doing this, especially because it decides to speed up on its own every couple of months...

Why does project save slow down over duration of project life?

I notice when I'm editing in a project in Premiere Pro CC, the auto save or even if I just save, the save slows down over time. You can slowly see the save bar going slower and slower over time. Even if I don't add any new media or import different files the save still goes a lot slower overtime. Sometimes the save bar will hang at a certain point for 20 secs or so and then continue. I understand if I add more media, files, pics, music etc... the save will take longer. But why does it do this if I'm just editing with some effects? Is it something to do with the cache folder getting too large or that I have too many auto saves? Should I clean out these folders? Also if it hangs at one spot for 10 secs or so is it because there is a corrupt file somewhere?
I just find this very frustrating if you are saving every 5 mins and you have to wait for 30 secs for a save.
My specs: Mac Pro 2009
Processor 2 x 2.26 GHz Quad-Core Intel Xeon
Memory 32 GB 1066 MHz DDR3 ECC
Graphics NVIDIA GeForce GTX 680 2048 MB
Startup disk SSD

I can answer some parts:
The auto save works as a five project silo. Once the list gets to 5 saves, it starts to write over. Also the auto-save only saves the project--no assets, no renders, thus the file is relatively small.
applying aneffect (filters transitions, etc) causes the program to create a new file as Premiere does not modfy the original asset. The more effects that are used, the more files that are created. When you finally export, the AME creates a single file, once again, not affecting the original assets.

Why does my animation slow down in safari?

i've created an animation at 75 fps. when i open the .swf
file with safari the animation is slowed down. why is this?
also, Explorer can't even open the file. i suppose i need a
flash player for Explorer. I should probably also upgrade from 5.2,
huh? hahahaha

And yet I have built an entire career on animation with
flash. I will admit, being a toon boom user,
the difference is huge - TBS has a lot more desireable
features - but flash is flash - it is pretty
convenient that the entire world browsing the internet has
the flash player - and flash does have
one of the most intuitive timelines ever. TBS is still in the
dark ages with exposure sheet style
animation - it's traditional and that's fine, but serves very
little purpose in regards to
computer-based animation.
The general statement that flash is not an animation tool is
like saying that a ferrari is not for
driving.
mho
GerryIsHere wrote:
> Flash is definitely not an "animation" tool.
~~~~~~~~~~~~~~~~
--> Adobe Certified Expert
--> www.mudbubble.com
--> www.keyframer.com
~~~~~~~~~~~~~~~~

Why does my application slow down?

Hi,
I'm designing a LabVIEW PDA application which has to receive, display and save data. One data is received every 30ms through Bluetooth (the other side is a microcontroller). My problem is that after about 5 secondes the LabVIEW application slows down and my system is not real-time any more. Is it because of the shift registers? I don't have a lot of knowledges in LabVIEW and I hope somebody will be able to guide me toward a solution.
Thanks in advance
Message Edited by roberto.venetz on 02-22-2007 02:23 PM
Attachments:
LDF_LabV_main.jpg ‏1216 KB

Your image is not good enought to really see what's going on, but nothing seems very efficient from what I recognize.
You don't need the flat 4 frame sequence structure at all. Simply delete the read globals in the fourth frame and use a wire from the value a few frames over. Now execution order is fully determined by dataflow. Delete the sequence.
What's all that song and dance to get a DBL from a string? (looks like "string to byte array...split string...combine...delete from array(?!)...to DBL") I think all you need is a "typecast" and a "to DBL". (I've see that before but it is very hard to comprehend why people use "delete from array" and then only use the "deleted portion" output to get a subset. What's wrong with "index array" or "array subset"????)
You are growing four arrays without bounds, this is very expensive. Do you have any idea how long the arrays will get in the worst case scenario?
you are reading the dt global four times with each iteration. I doubt it will ever change during the loop, so read it once outside the loop and wire it to all users.
Why are you constantly building new waveforms? You might as well just graph the arry direclty and set x0 and dx once with a property node before the loop.
What determines the loop rate?
Why are you bundling the four arrays into a cluster at the end? Keep the datatype simple! For example you could use a single 2D array.
What is going on in the other frames of the big sequence?
Why on'y ou attach your program, it would be easer to inspect.
LabVIEW Champion . Do more with less code and in less time .

Why Does My Mouse Slow Down?

Lifetime Windows user recently switched to Mac. I plugged in a USB mouse and as I get close to whatever I am looking to click on and naturally slow down, the cursor slows down exponentially. I read something about this being how macs are, but want to verify that and see what can be done about turning that off if it is the case. It is just awful in my opinion.

Trey B wrote:
So you can minimize LabVIEW 8.5 and the speed returns to normal? What operating system are you using?
Yes, if I minimize LabVIEW (or switch to another program), my mouse speed returns to normal. I'm running Windows XP w/ SP2, and using a Logitech Trackman Wheel.
Marc A wrote:
I noticed this once with Google Earth. Turns out my mouse drivers were set to disable acceleration in games. This slowed the mouse down when Google Earth was in focus. I'm not sure if any drivers treat LabVIEW as a game, but it's worth a look.
Your fix worked for me. I turned off the "Disable Acceleration in Games" setting and it worked great. I don't program at home, so it's not an issue for me, but I imagine this could be an annoyance for anybody out there that also does any gaming. Just an idea for NI.

Why does my MBP slow down throughout the day?

If I reboot my MBP it will run very fast, nice and zippy. But as the hours go on it seems to slow down to a crawl. I am noticing this in particualr in PS where I can run a program called Portraiture (for example) that will run almost instantly after a reboot and then hours later will take as much as 25 or 30 seconds to run.
The only thing that I have noticed is it does seem to correspond (possibly) with an external hard drive I attach to it frequently. I did this morning again and noticed it starting to slow shortly after. Ejecting the disk and unplugging it doesn't help, but ejecting it, unplugging and rebooting does help. (Though I don't kow if it is just the reboot that is helping and not neccesarily the disk) This ext HD is one that was used with my PC and is now being used to transfer files from the old PC to the new Mac. Could this be the problem? Have you ever heard of this being an issue?
I just used a tool called the band aid tool- this is something that is used for retouching. When using this tool it is typically instant but just now it took about 45 seconds for it to do it's job. I looked at the activity monitor and it was showing only 2% memory usage at the time.
This seems a bit odd to me.
MBP, Lion, 2.3GHZ, 8GB RAM.

Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Appearance/Themes).
* Don't make any changes on the Safe mode start window.
See:
* [[Troubleshooting extensions and themes]]
If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.
* Use "Disable all add-ons" on the [[Safe mode]] start window to disable all extensions.
* Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

Why does Firefox performance slow down after starting Jack server?

Hello,
I started configuring my audio on my system. So, I want to have jack working (not jack2, to work with wineasio) with best sound quality with all sound routed through jack. When i start jack server with this command and settings:
killall jackd;killall pulseaudio;jackd -R -t 1000 -d alsa -P hw:0,0 -r 48000 -n2 -D
Firefox slows down, opens new pages slow and the scroll down is very very slow. I had this issue with other distros too. I suspect that it has to do with realtime ( which i need for my audio related apps like traktor through wine, ardour, ableton through wine etc) without being sure about it. Any idea why this is happening?

zabrielza wrote:I had this issue with other distros too.
This smells like hardware problem. Do this:
1. Kill pulseaudio, jack, and make sure they are killed
2. Make sure you do not renice anything or apply other such tweaks
3. Run jackd -d alsa
4. Use your system
5. If unsatisfactory, try jackd -d alsa -p 1024 -n 3
6. Use your system
Jack runs with realtime priority by default (no flag required), and we still use the audio group to provide that privilege. I also do not advocate the realtime kernel, but you may try it. Jack not functioning well (i.e. hampering other tasks significantly) on a standard kernel is cause for concern.
You can read/grep your dmesg and systemd journal for suspicious messages. You may try running real-time audio tasks in another operating system with your hardware, and upon success may proceed to debug the problem on Linux, possibly with the help of the alsa developers.
Or better yet, grab a supported semi-pro external audio device if jack is important for you. However, this may not help if the problem is somewhere deeper, e.g. at the hardware interrupt level.
Last edited by schivmeister (2015-04-30 18:21:56)

Why does my footage Slow down and loose audio when imported to after effects cs6?

Whenever I import video of any kind into after effects, it slows down and looses audio. It happens for every video. The weird thing is, it seems like it doesnt happen to anyone else on the internet. CAN SOMEONE PLEASE HELP ME PLEASE!!!! I am about to cry. I cant do anything with this stupid software! If there is a solution please tell me. Its really annoying.
extra info-
On Mac
mov. Files
H.264 codec

Slows down when? When you preview? Do you know how to preview?
If you are pressing the space bar to preview the video then the behavior you are seeing is normal. AE will not playback in real time with autio unless you do a ram preview (look it up). You must learn to use the software.
Start with the three videos on this page: Basic Workflow
Or check out these resources: AE Basics

Why does Airport Express slow down my wireless network??

Hello, guys! Here I am again, seeking for help...
Ok, so here's the situation: my internet service provides me with 10Mbps. My cable modem is hooked up to a 4-month old Airport Extreme in my home office, two walls away from the living room, where I'm typing from now. Internet's wireless speed in this living room has always been about 10Mbps, barely any loss when switching my signal from cable to wireless.
I then decided to buy an Airport Express in order to extend my wireless network, since I want to work in a room far from this living room and with Airport Extreme alone I got no internet signal there.
Ok, so I installed the Express right at the living room (I can say it's pretty much at the middle of the house) and now I got full internet sign at the far room, great!
HOWEVER, my wireles speed has been cut by half!! At this very same living room where the signal was 10Mbps before I installed the Aiport Express, it's now - at the very best!- 5Mbps!! Needless to say that it's even slower at the far room it was intendend to extend the signal to, but that was kind of expected.
*But why does it cut in half my internet speed at the living room if Airpot Extreme IS delivering 10Mbps at that point of the house??* Am I not setting it up properly, how can I solve this??
Thank you so much for any help you can give me!
Cheers,
Renata
Message was edited by: rgobrasil

After some more analysis, I discovered that this tends to happen everytime a Time Capsule backup is performed.....

Why is my macbook slowing down

My Macbook Air 2013 Seems to be slowing down .
Any suggestions
Running Yosemite

When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.

Why is MacBook WiFi acting up? Slowing down every 5-6 seconds

Configuration: MacBook, WLAN router Zyxel 660HW. Works ok with PowerBook. Three different 10.4.11 MacBooks have same symptoms.
Have been working with macs since the 80's - the workstations are properly configurated, have HD space enough, network is properly defined.
I'm 110% certain that the Airport management in MacBook has some defects. If I remove the com.apple.airport.preferences.plist and restart the MacBook the WS will run some hours without the slowness.
Dear Apple technicians - when do you have the fix available. This, I fear, is a problem for all MacBook users that are using WiFi/WLAN connections.
Urgent response needed - customers are waiting for answers also.

Doubtful Apple will see this, just us other Users here.
Be sure to give this a try...
http://www.apple.com/feedback/

The spinning beach ball - why has my MacBook slowed down SO much?

My MacBook has become terribly slow. I get the spinning beachball almost every time I hit a key now, and I am just about ready to throw everything out the window. Mainly I use my laptop for internet browsing (Safari only), iTunes and iPhoto. I do have third party stuff on my computer such as the software for my Nike Fuelband, and Jawbone Updater for my Jambox. I have Java too, which I probaby don't need. Oh I also have some card games - but those sorts of things I get from the App Store. I don't muck around with settings or anything, because I don't know anything about that! I just USE my laptop. So having said that, I don't know why I would have the spinning beachball as my new sidekick....
I have followed instructions I found on another discussion (https://discussions.apple.com/thread/5303293?start=0&tstart=0) to test my MacBook. My results are good news I think: Logging in as a guest account, everything runs like I would hope - iTunes opens up quickly, same with iPhoto, and when I look up sites on Safari they load up quickly. I then started in safe mode, and logged in as myself. Excusing the "stuttering" of the graphics and such, I would say that in safe mode things moved along much more quickly. I got the beachball in safe mode but not every time I tried opening something, and only briefly when it did appear.
My question is, where do I go from here? How do I "clean up" or fix my MacBook so that it runs like it used to? Like I say, I think it must be good news that in those test scenarios my MacBook performs much more like the good old days. Does this suggest that my own account just has crap on it that needs to go? And if so, the big question is, how on earth would I go about identifying the source(s) of the problem and then getting rid of them?
I have searched some on the forums here but I'm at a bit of a loss because I don't really even know what to search for! As I say, I am a complete user only! I do follow instructions pretty well though, so if anyone could point me to the right help page or give me further advice, I would be oh-so-grateful!
cheers,
Lydia

Please read this whole message before doing anything.
This procedure is a diagnostic test. It changes nothing, and therefore will not, in itself, solve your problem.
Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software — potentially for the worse. The procedure will help identify which such modifications you've installed, as well as certain other aspects of the configuration that may have a bearing on the problem. Don’t be alarmed by the seeming complexity of these instructions — they’re easy to carry out and won’t change anything on your Mac.
These steps are to be taken while booted in “normal” mode, not in safe mode, if possible. If you’re now running in safe mode, reboot as usual before continuing. If you can only boot in safe mode, you can still use this procedure, but not all of it will work. Be sure to mention that in your reply, if you haven't already done so.
Below are instructions to enter UNIX shell commands. The commands are safe and do nothing but produce human-readable text output, but they must be entered exactly as given in order to work. If you have doubts about the safety of the procedure suggested here, search this site for other discussions in which it’s been followed without any report of ill effects. I am not asking you to trust me. If you can't satisfy yourself that these instructions are safe, don't follow them.
The commands will line-wrap or scroll in your browser, but each one is really just a single long line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then copy it.
Note: If you have more than one user account, Step 2 must be taken as an administrator. Ordinarily that would be the user created automatically when you booted the system for the first time. Step 1 should be taken as the user who has the problem, if different. Most personal Macs have only one user, and in that case this paragraph doesn’t apply.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign (“$”) or a percent sign (“%”). If you get the percent sign, enter “sh” and press return. You should then get a new line ending in a dollar sign.
Step 1
Triple-click anywhere in the line of text below on this page to select it:
P=/usr/libexec/PlistBuddy; E () { [ "$o" ] && echo $'\n'$1: && echo "$o"; }; F () { o=$($P -c Print "$2" | awk -F'= ' \/$3'/{print $2}'); E "$1"; }; { o=$(kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}'); E "Loaded extrinsic kernel extensions"; o=$(launchctl list | sed 1d | awk '!/0x|com\.apple|org\.(x|openbsd)|\.[0-9]+$/{print $3}'); E "Loaded extrinsic user agents"; o=$(launchctl getenv DYLD_INSERT_LIBRARIES); E "Inserted libraries"; o=$(crontab -l); E "User cron tasks"; o=$(cat /e*/lau*); E "Global launchd configuration"; o=$(cat ~/.lau*); E "Per-user launchd configuration"; F "Global login items" /L*/P*/loginwindow.plist Path; F "Per-user login items" L*/P*/com.apple.loginitems.plist Path; F "Safari extensions" L*/Saf*/*/E*.plist Bundle | sed 's/\..*$//;s/-[1-9]$//'; o=$(find ~ $TMPDIR.. $ -flags +sappnd,schg,uappnd,uchg -o ! -user $UID -o ! -perm -600 $ | wc -l); [ "$o" == 0 ] || printf "\nRestricted user files: %s\n" $o; cd; o=$(find -L /S*/L*/E* {,/}L*/{Ad,Compon,Ex,In,Keyb,Mail/Bu,P*P,Qu,Scripti,Servi,Spo}* -type d -name Contents -prune | while read d; do $P -c 'Print :CFBundleIdentifier' "$d/Info.plist" | egrep -qv "^com\.apple\.[^x]|Accusys|ArcMSR|ATTO|HDPro|HighPoint|driver\.stex|hp-fax|JMicron|microsoft\.MDI|print|SoftRAID" && echo ${d%/Contents}; done); E "Extrinsic loadable bundles"; o=$(find /u*/{,*/}lib -type f -exec sh -c 'file -b "$1" | grep -qw shared && ! codesign -v "$1"' {} {} \; -print); E "Unsigned shared libraries"; for d in {,/}L*/{La,Priv,Sta}* L*/Fonts; do o=$(ls -A "$d"); E "$d"; done; } 2> /dev/null | pbcopy; echo $'\nStep 1 done'
Copy the selected text to the Clipboard by pressing the key combination command-C. Then click anywhere in the Terminal window and paste (command-V). I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.
The command may take up to a few minutes to run, depending on how many files you have and the speed of the computer. Wait for the line "Step 1 done" to appear below what you entered. The output of the command will be automatically copied to the Clipboard. If the command produced no output, the Clipboard will be empty. Paste into a reply to this message. No typing is involved in this step.
Step 2
Remember that you must be logged in as an administrator for this step. Do as in Step 1 with this line:
E () { [ "$o" ] && echo $'\n'$1: && echo "$o"; }; { o=$(sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix\.cron)|org\.(amav|apac|cups|isc|ntp|postf|x)/{print $3}'); E "Loaded extrinsic daemons"; o=$(sudo defaults read com.apple.loginwindow LoginHook); E "Login hook"; o=$(sudo crontab -l); E "Root cron tasks"; o=$(syslog -k Sender kernel -k Message CReq 'GPU |hfs: Ru|I/O e|find tok|n Cause: -|NVDA\(|pagin|timed? ?o' | tail | awk '/:/{$4=""; print}'); E "Log check"; } 2> /dev/null | pbcopy; echo $'\nStep 2 done'
This time you'll be prompted for your login password, which you do have to type. Nothing will be displayed when you type it. Type it carefully and then press return. You may get a one-time warning to be careful. Heed that warning, but don't post it. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator.
You can then quit Terminal.
To prevent confusion, I'll repeat: When you type your password in the Terminal window, you won't see what you're typing.
Note: If you don’t have a login password, set one before taking Step 2. If that’s not possible, skip the step.
Important: If any personal information, such as your name or email address, appears in the output of these commands, anonymize it before posting. Usually that won't be necessary.
Remember, Steps 1 and 2 are all copy-and-paste — no typing is involved, apart from your password. Also remember to post the output.

Why does my ipod slow down playback?

I have a 3rd Gen iPod Classic which has worked flawlessly until just recently. It has started to play back my mp3 files at a slightly slower tempo but enough that it is really disconcerting. Does this mean that the unit is dying? Like maybe the hard drive is on its way out? I know newer versions have a speed control. Not mine. Has anyone out there had a similar experience? Any help here would be greatly appreciated.

Good that "big gamer nerds" are starting to use the Mac. Not long ago, there were hardly any good games around. Going backwards, yes, it's going to make the MBP run hotter. It's using the max amount of everything running.
To really help you, we would need the exact model of MBP. For example, if you have 15 or 17", you need to make sure you're running with the discrete video card (nvidia or AMD) instead of the integrated Intel version (which is good enough for TV viewing and web browsing). Also, you need to make sure you maximize memory. When I play a game (I only play Starcraft), I shut down all other programs, especially anything that runs in the background (like a twitter feed, though that really doesn't use too many resources). You can use Activity Monitor (it's in your Utility folder) to see what's sucking resources on your computer.
Remember, the game companies want to sell as many games as possible. So they give computer spects that will just barely run the game if you tweak every setting. You want to be way over the minimum settings in processor speed, memory, disk space etc.
Minecraft has known framerate issues on the Mac port of the game. It has nothing to do with you, your Mac, or anything, but the quality of code from the developer.

Why does my Macbook slow down every 4-5 seconds?

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