Can connecting at 'g' slow down 'n'?
I have an iMac connecting to an airport extreme at 'n'. I also have a windows based laptop that doesn't support 'n' so I connect to the AE at 'g' speed. I heard that if any device connects to an AE at 'g' then the entire AE slows down to 'g'.
Is this true? how can I tell if my iMac desktop is still connected at 'n' or if it too has stepped down to 'g'?
Bruce
Does it only degrade the "n" when a "g" or "b" device in actively on the network, or does simply setting the AE to "n (with b and g compatibility)" immediately and constantly degrade the signal?
What about if I have a WDS set up including 3 AE n's and 1 AE g? Will the presence of the older AE g slow down the entire WDS?
Thanks
Similar Messages
-
I'm running out of internal disk space on my iMac. I want to move the iMovie (10.0.8) library over to an external disk that has only a USB 3.0 connection. But my iMac has only USB 2.0 ports. When iMovie operates, does it load a project into memory, and do all the work there, or does it bang on the library often while I'm working on the project, so that it would slow down project work? I have a hunch that it does frequent saves during work automatically to disk, which would slow things down a lot.
External disk speed is quite important especially if you have limited RAM since less can be transferred to memory and more has to be read and written back to disk. Your disk will run at USB 2 speed which is not fast but should work. (A Firewire 800 disk would have been better assuming your Mac has this). If you haven't already, update your RAM to the maximum.
Geoff. -
Does locked documents in sm12 can cause system to slow down in reading
hi experts,
When I check locked entries in sm12, i found some locked entries which are already past 8 hours and sometimes more. Do those entries contribute to the system's slow performance? When should I delete those entries? I hesitate to delete locked entries and kick users out of the system because they maybe editting some documents and have'nt saved them yet.
Thank you in advance for your response.Hello,
System Lock mechanism doesn't slow down system. But sometime it's required to delete the entries of hanged uses login processes, which can be done through SM04/AL08 as described by GURUS.
But sometime though you try to delete from these T-Code the process doesn't get delted, then you can proceed for the below mnetioned two steps:
1. SM50 and delete the corresponding process through PROCESS > CANCEL WITHOUT CORE
PROCESS > RESTART AFTER ERROR -> NO
2. If you have access to OS level, then the same can be deleted by following command:
kill -9 <process no.>
In case any issue, please feel free to revert.
Reagrds,
Nilutpal -
How can Logic make tracks slow down like an old record slowing down?
If anyone skilled know this, I need to get my entire tracks to " slows down" as a record that just loosing the motor....I have audio tracks and some spectronics /ESX24 also in the set.
I need to make this goes down and efter 1 second to speed up again...
I am working in 48Khz and Logic 9.1.1 and 5.1 sorround.
Maybe I am missing something easy, or maybe it is are harder to get.....
Hopefully a "mastermind" can help me out!
Message was edited by: Host (to clarify subject)Danke, thank you....!!
I was messing around with flex and felt it was not really obvious to make it there.....
I will do this!
Thanks for helping me out here! -
Ipod wifi connecting problem and slowing down like it has a virus need help asap
my father bought me aND IPOD and i gave to him to to fix his wifi on it and he had an wifi lock so it went off at 11 and it kept getting earlier and earlier and now i left his house and tried to connect to my grandmothers wifi and its been slowing down and acting funny here lately and now it wont connect at all to her wifi. he has done something like that before to my sisters ipod and i cant connect to wifi and need to no how to work this problem outwithout losing all of my stuff music etc. . what should i do
Does the iPod connect to other networks?
Does the iPod see the network?
Any error messages?
Do other devices now connect?
Try:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on the router
- Reset network settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- iOS: Recommended settings for Wi-Fi routers and access points -
Can too many Photos slow down a Mac Pro?
Hi, I have atleast 100,000 photos on my pc, would this many photos slow down a 2.66GHz quad core mac pro with 6 gigs of memory? thanks
I have 60,000. I use non-boot drive of course for data. Some people have huge music and video libraries of 2TB spanning 2-3 drives on stripped RAIDs.
Mac Pro and OS X really likes RAM, and the base for DDR3 8-core is to have 6 DIMMs and I'd go with 6 x 2GB, either Apple or 3rd party RAM, then add 3 x 640GB drives (WD Black Caviar). Stripe two, even if you partition it as 400GB each. http://www.barefeats.com/nehal04.html
And keep the boot drive to OS and applications primarily.
A nice guide:
http://macperformanceguide.com/Reviews-MacProNehalem.html
CineBench 10.1 and Geekbench results
http://www.barefeats.com/nehal03.html -
Can't Fast Forward/Slow down in iMovie
I have the new iMovie and i took a video on my laptop with the iSight camera and will not let me speed up. Please help!
kasia_plus3 wrote:
I made my movie from still photos, but I hope It doesn't matter?
Yes, it does matter. The speed controls don't work on still images.
Instead you want to change the duration of the clip. Select the clip, click the Adjust Button then choose Clip Information (the little "i"). Enter the duration you wish you clip to last.
Changing the duration effective speeds up or slows down the clip with still images.
Matt -
WTB someone knowlegble if they can make my fan  slow down!
I am trying to record a song... its important to me to do this. my mac pro 1,2 2.6ghz intel comp running latest lion osx's exaust cpu and hd fan are all going over 2800 and i cant hear high frequency noise (that i need to remove) from the mix; even with headphones on the fan covers it, i bounce, burn, and go to my car and there's a hiss. Guts are clean , however ambient room temp is running 27in the unit (whatever the dashboard widget measures in).
I am bad with this new osx if you would like to help please reply.
I have unplugged the unit held power, plug unit in, start up, no change
i opened the unit and reset the button by the pcie cards (this fixed it when i had snow leopard but lion it has no effect)
I reset pram/nvram (whatever) that just reset all my midi routing (fun times).
please help an old mac kid.
\\dredRespectfully, I signed up for the "Fiber" service as we told numerous times that our connection speed would range from 25-40mbps and this was confirmed by the numerous checkups I did. To a certain degree you are paying for a theoretical speed, however, a reduction on a Fiber service of 92.5% of the sync speed indicates there has to be something wrong with the service. Most customers (inclduing myself) would be asking questions (hence the thread) if a service you are paying for is suddenly reduced to a crippling state. If they want to provide ADSL level speeds then the price tag should match. To make it clear, I am absolutely fine if the connection is going to remain at this speed during points of the day, however, at the same time I will refuse to pay for Fiber service to only get ADSL when I want to use the connection. If they want to provide me 3mbps then I will pay for 3mbps. If they offer 40mbps I will pay for 40mbps. However, they should only offer services for sale they know are fit for purpose and are not, for some seemingly unknown reason going to suddenly reduce the speed by 90%+. If you can't deliver a solid, stable service then it should not be offered for sale.
-
Is iOS 8 slowing down the wi fi on my iPad air?
Having lived through several OS updates I know that it takes a little while for apps to all be updated and for little glitches to be worked out. However, I think iOS 8 has brought on some real issues with my iPad Air.
The overall issue is a slow connection to the internet. This happens at home and in several other locations where I have used the wi-fi since updating to iOS 8 a few weeks, ago. My work PC works fine (well... at least, the internet does), but my daugter's iPad mini (also updated to iOS 8) will slow down when she is watching Netflix, occassionally. The family also has an iMac, which is working fine.
While using the Washtington Post (downloading the newspaper), Pinterest, Safari, You Tube, Mail and the App Store, the connection seems to slow down to a crawl making it impossible to continue what I am doing.
I've shut down and restarted the iPad, and then it works fine for a while, only to slow down again sometime later. Sometimes the problem will seem to fix itself, but then it slows down again. Sometimes, it happens when it comes out of sleep mode, and sometimes not. Since I use my iPad to work from home, it is really frustrating. I can delay my gratification when it comes to games and such, but not when I am updating my blog or reading my email.
I've Googled iOS 8 and wi fi and saw that there are a number of issues out there. Some of the big tech magazines and websites are tracking some similiar issues. I'm curious if anyone knows if this is all related to iOS 8 and if a future update will resolve it, or if there are ways I can test my hardware on my iPad to make sure it is working properly.
Thanks!How to remove ios 8 ? This is biggest failure of Apple. It slow down my ipad , freez application, freez key board....?
-
I need a program that I can speed up and slow down tracks with. Is that possible in Logic Express? I know that it can be done in Logic Pro, however I don't need quite that much program.
xcuse me if i jump in here without answering the original question, but that brings up something similar to me:
if i have a setup in the arrange with a combination of various audio-files, apple loops and midi-tracks, and i want to record something additional into that (midi over connected edirol midi-keyboard): can i slow down the whole song, just to make it easier to record the new part without destructively destroying anything?
and after that just go back to the original song-tempo?
thanx a bunch for any thoughts!
again, sorry balletboy for jumpin in here, hope that is ok for you :o) -
Bluetooth mouse slows down wifi
I recently bought logitech bluetooth mouse V470 to use with my Thinkpad s440. The problem is whenever the mouse is connected, my wifi slows down dramatically, turning off the mouse recovers the internet speed.Can anyone suggest a fix for this issue
You could try changing the channel that your wi-fi uses for creating the LAN. You would need to do this in your router configuration.
Dah•veed -
Please Help, Heres the details
Hardware Information:
MacBook Pro (15-inch, Mid 2010)
MacBook Pro - model: MacBookPro6,2
1 2.66 GHz Intel Core i7 CPU: 2 cores
4 GB RAM
Video Information:
Intel HD Graphics - VRAM: 288 MB
NVIDIA GeForce GT 330M - VRAM: 512 MB
System Software:
OS X 10.9.1 (13B42) - Uptime: 0 days 2:26:18
Disk Information:
TOSHIBA MK5055GSXF disk0 : (500.11 GB)
EFI (disk0s1) <not mounted>: 209.7 MB
c (disk0s2) /: 499.25 GB (350.45 GB free)
Recovery HD (disk0s3) <not mounted>: 650 MB
MATSHITADVD-R UJ-898
USB Information:
Apple Inc. iPhone
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Internal Memory Card Reader
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Computer, Inc. IR Receiver
Apple Inc. Built-in iSight
FireWire Information:
Thunderbolt Information:
Kernel Extensions:
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
[loaded] com.adobe.SwitchBoard.plist 3rd-Party support link
[loaded] com.microsoft.office.licensing.helper.plist 3rd-Party support link
Launch Agents:
[not loaded] com.adobe.AAM.Updater-1.0.plist 3rd-Party support link
[loaded] com.adobe.CS5ServiceManager.plist 3rd-Party support link
User Launch Agents:
[loaded] com.adobe.AAM.Updater-1.0.plist 3rd-Party support link
[loaded] com.divx.agent.postinstall.plist 3rd-Party support link
[loaded] com.google.GoogleContactSyncAgent.plist 3rd-Party support link
[loaded] com.google.keystone.agent.plist 3rd-Party support link
User Login Items:
iTunesHelper
Internet Plug-ins:
FolxNetscapePlugIn: Version: Unknown
AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6 3rd-Party support link
Default Browser: Version: 537 - SDK 10.9
AdobePDFViewerNPAPI: Version: 11.0.0 - SDK 10.6 3rd-Party support link
AdobePDFViewer: Version: 11.0.0 - SDK 10.6 3rd-Party support link
DivXBrowserPlugin: Version: 2.2 3rd-Party support link
OVSHelper: Version: 1.1 3rd-Party support link
QuickTime Plugin: Version: 7.7.3
Google Earth Web Plug-in: Version: 7.1 3rd-Party support link
SharePointBrowserPlugin: Version: 14.0.0 3rd-Party support link
JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Outdated! Update
Audio Plug-ins:
BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
AirPlay: Version: 1.9 - SDK 10.9
AppleAVBAudio: Version: 2.0.0 - SDK 10.9
iSightAudio: Version: 7.7.3 - SDK 10.9
User Internet Plug-ins:
Folx3Plugin: Version: 3.0.1 - SDK 10.6 3rd-Party support link
FolxNetscapePlugIn: Version: Unknown
3rd Party Preference Panes:
DivX 3rd-Party support link
Growl 3rd-Party support link
Tuxera NTFS 3rd-Party support link
Bad Fonts:
None
Old Applications:
None
Time Machine:
Auto backup: YES
Volumes being backed up:
c: Disk size: 464.96 GB Disk used: 138.58 GB
Destinations:
Time Machine Backups [Local] (Last used)
Total size: 2
Total number of backups: 17
Oldest backup: 2012-11-28 08:11:07 +0000
Last backup: 2013-11-26 17:25:41 +0000
Size of backup disk: Excellent
Backup size 2 > (Disk size 464.96 GB X 3)
Time Machine details may not be accurate.
All volumes being backed up may not be listed.
Top Processes by CPU:
1% EtreCheck
1% sysmond
1% Google Chrome
1% WindowServer
1% Microsoft Excel
Top Processes by Memory:
193 MB Viber
115 MB Google Chrome
86 MB Microsoft Excel
86 MB mds_stores
74 MB WindowServer
Virtual Memory Information:
1.00 GB Free RAM
1.73 GB Active RAM
303 MB Inactive RAM
862 MB Wired RAM
872 MB Page-ins
0 B Page-outsThings You Can Do To Resolve Slow Downs
If your computer seems to be running slower here are some things you can do:
Start with visits to: OS X Maintenance - MacAttorney;
The X Lab: The X-FAQs;
The Safe Mac » Mac Performance Guide;
The Safe Mac » The myth of the dirty Mac;
Mac maintenance Quick Assist.
Boot into Safe Mode then repair your hard drive and permissions:
Repair the Hard Drive and Permissions Pre-Lion
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
Repair the Hard Drive - Lion/Mountain Lion/Mavericks
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the Utilites Menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD disk icon and click on the arrow button below.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
Restart your computer normally and see if this has helped any. Next do some maintenance:
For situations Disk Utility cannot handle the best third-party utility is Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible.
Note: Alsoft ships DW on a bootable DVD that will startup Macs running Snow Leopard or earlier. It cannot start Macs that came with Lion or later pre-installed, however, DW will work on those models.
Suggestions for OS X Maintenance
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts was significantly reduced since Tiger. These utilities have limited or no functionality with Snow Leopard or later and should not be installed.
OS X automatically defragments files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive.
Helpful Links Regarding Malware Protection
An excellent link to read is Tom Reed's Mac Malware Guide.
Also, visit The XLab FAQs and read Detecting and avoiding malware and spyware.
See these Apple articles:
Mac OS X Snow Leopard and malware detection
OS X Lion- Protect your Mac from malware
OS X Mountain Lion- Protect your Mac from malware
About file quarantine in OS X
If you require anti-virus protection I recommend using VirusBarrier Express 1.1.6 or Dr.Web Light both from the App Store. They're both free, and since they're from the App Store, they won't destabilize the system. (Thank you to Thomas Reed for these recommendations.)
Troubleshooting Applications
I recommend downloading a utility such as TinkerTool System, OnyX, Mavericks Cache Cleaner, or Cocktail that you can use for removing old log files and archives, clearing caches, etc. Corrupted cache, log, or temporary files can cause application or OS X crashes as well as kernel panics.
If you have Snow Leopard or Leopard, then for similar repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the command line. Note that AppleJack 1.5 is required for Leopard. AppleJack 1.6 is compatible with Snow Leopard. Applejack does not work with Lion and later.
Basic Backup
For some people Time Machine will be more than adequate. Time Machine is part of OS X. There are two components:
1. A Time Machine preferences panel as part of System Preferences;
2. A Time Machine application located in the Applications folder. It is
used to manage backups and to restore backups. Time Machine
requires a backup drive that is at least twice the capacity of the
drive being backed up.
Alternatively, get an external drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Carbon Copy Cloner
2. Get Backup
3. Deja Vu
4. SuperDuper!
5. Synk Pro
6. Tri-Backup
Visit The XLab FAQs and read the FAQ on backup and restore. Also read How to Back Up and Restore Your Files. For help with using Time Machine visit Pondini's Time Machine FAQ for help with all things Time Machine.
Referenced software can be found at MacUpdate.
Additional Hints
Be sure you have an adequate amount of RAM installed for the number of applications you run concurrently. Be sure you leave a minimum of 10% of the hard drive's capacity as free space.
Add more RAM. If your computer has less than 2 GBs of RAM and you are using OS X Leopard or later, then you can do with more RAM. Snow Leopard and Lion work much better with 4 GBs of RAM than their system minimums. The more concurrent applications you tend to use the more RAM you should have.
Always maintain at least 15 GBs or 10% of your hard drive's capacity as free space, whichever is greater. OS X is frequently accessing your hard drive, so providing adequate free space will keep things from slowing down.
Check for applications that may be hogging the CPU:
Pre-Mavericks
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Mavericks and later
Open Activity Monitor in the Utilities folder. Select All Processes from the View menu. Click on the CPU tab in the toolbar. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Often this problem occurs because of a corrupted cache or preferences file or an attempt to write to a corrupted log file.
Or you can simply do this:
Reinstall Mavericks without erasing drive
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu. Select Restart from the Apple menu.
Reinstall Mavericks
OS X Mavericks- Reinstall OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless. -
Is MacKeeper or some other product useful on vleaaning up myiMac, which is slowing down
Things You Can Do To Resolve Slow Downs
If your computer seems to be running slower here are some things you can do:
Start with visits to: OS X Maintenance - MacAttorney;
The X Lab: The X-FAQs;
The Safe Mac » Mac Performance Guide;
The Safe Mac » The myth of the dirty Mac;
Mac maintenance Quick Assist.
Boot into Safe Mode then repair your hard drive and permissions:
Repair the Hard Drive and Permissions Pre-Lion
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
Repair the Hard Drive - Lion/Mountain Lion/Mavericks
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the Utilites Menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD disk icon and click on the arrow button below.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
Restart your computer normally and see if this has helped any. Next do some maintenance:
For situations Disk Utility cannot handle the best third-party utility is Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible.
Note: Alsoft ships DW on a bootable DVD that will startup Macs running Snow Leopard or earlier. It cannot start Macs that came with Lion or later pre-installed, however, DW will work on those models.
Suggestions for OS X Maintenance
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts was significantly reduced since Tiger. These utilities have limited or no functionality with Snow Leopard or later and should not be installed.
OS X automatically defragments files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive.
Helpful Links Regarding Malware Protection
An excellent link to read is Tom Reed's Mac Malware Guide.
Also, visit The XLab FAQs and read Detecting and avoiding malware and spyware.
See these Apple articles:
Mac OS X Snow Leopard and malware detection
OS X Lion- Protect your Mac from malware
OS X Mountain Lion- Protect your Mac from malware
About file quarantine in OS X
If you require anti-virus protection I recommend using VirusBarrier Express 1.1.6 or Dr.Web Light both from the App Store. They're both free, and since they're from the App Store, they won't destabilize the system. (Thank you to Thomas Reed for these recommendations.)
Troubleshooting Applications
I recommend downloading a utility such as TinkerTool System, OnyX, Mavericks Cache Cleaner, or Cocktail that you can use for removing old log files and archives, clearing caches, etc. Corrupted cache, log, or temporary files can cause application or OS X crashes as well as kernel panics.
If you have Snow Leopard or Leopard, then for similar repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the command line. Note that AppleJack 1.5 is required for Leopard. AppleJack 1.6 is compatible with Snow Leopard. Applejack does not work with Lion and later.
Basic Backup
For some people Time Machine will be more than adequate. Time Machine is part of OS X. There are two components:
1. A Time Machine preferences panel as part of System Preferences;
2. A Time Machine application located in the Applications folder. It is
used to manage backups and to restore backups. Time Machine
requires a backup drive that is at least twice the capacity of the
drive being backed up.
Alternatively, get an external drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Carbon Copy Cloner
2. Get Backup
3. Deja Vu
4. SuperDuper!
5. Synk Pro
6. Tri-Backup
Visit The XLab FAQs and read the FAQ on backup and restore. Also read How to Back Up and Restore Your Files. For help with using Time Machine visit Pondini's Time Machine FAQ for help with all things Time Machine.
Referenced software can be found at MacUpdate.
Additional Hints
Be sure you have an adequate amount of RAM installed for the number of applications you run concurrently. Be sure you leave a minimum of 10% of the hard drive's capacity as free space.
Add more RAM. If your computer has less than 2 GBs of RAM and you are using OS X Leopard or later, then you can do with more RAM. Snow Leopard and Lion work much better with 4 GBs of RAM than their system minimums. The more concurrent applications you tend to use the more RAM you should have.
Always maintain at least 15 GBs or 10% of your hard drive's capacity as free space, whichever is greater. OS X is frequently accessing your hard drive, so providing adequate free space will keep things from slowing down.
Check for applications that may be hogging the CPU:
Pre-Mavericks
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Mavericks and later
Open Activity Monitor in the Utilities folder. Select All Processes from the View menu. Click on the CPU tab in the toolbar. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Often this problem occurs because of a corrupted cache or preferences file or an attempt to write to a corrupted log file. -
My newest iMac from a year ago is getting very sluggish. I notice it particularly in Aperture. I get the whirling dervish thing going on an operation sometimes for many seconds, even a minute or more and once it just crashed and I had to restart with the button. So I'm wondering if there is some way to "clean up the system" that is built into the iMac or if there is a reliable app I can obtain that will clean things up. I'm supposed to have a super fast processor in this version of iMac and lots of hard drive space and RAM. What gives? Any suggestions?
Things You Can Do To Resolve Slow Downs
If your computer seems to be running slower here are some things you can do:
Start with visits to: OS X Maintenance - MacAttorney;
The X Lab: The X-FAQs;
The Safe Mac » Mac Performance Guide;
The Safe Mac » The myth of the dirty Mac;
Mac maintenance Quick Assist.
Boot into Safe Mode then repair your hard drive and permissions:
Repair the Hard Drive and Permissions Pre-Lion
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
Repair the Hard Drive - Lion/Mountain Lion/Mavericks
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the Utilites Menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD disk icon and click on the arrow button below.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
Restart your computer normally and see if this has helped any. Next do some maintenance:
For situations Disk Utility cannot handle the best third-party utility is Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible.
Note: Alsoft ships DW on a bootable DVD that will startup Macs running Snow Leopard or earlier. It cannot start Macs that came with Lion or later pre-installed, however, DW will work on those models.
Suggestions for OS X Maintenance
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts was significantly reduced since Tiger. These utilities have limited or no functionality with Snow Leopard or later and should not be installed.
OS X automatically defragments files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive.
Helpful Links Regarding Malware Protection
An excellent link to read is Tom Reed's Mac Malware Guide.
Also, visit The XLab FAQs and read Detecting and avoiding malware and spyware.
See these Apple articles:
Mac OS X Snow Leopard and malware detection
OS X Lion- Protect your Mac from malware
OS X Mountain Lion- Protect your Mac from malware
About file quarantine in OS X
If you require anti-virus protection I recommend using VirusBarrier Express 1.1.6 or Dr.Web Light both from the App Store. They're both free, and since they're from the App Store, they won't destabilize the system. (Thank you to Thomas Reed for these recommendations.)
Troubleshooting Applications
I recommend downloading a utility such as TinkerTool System, OnyX, Mavericks Cache Cleaner, or Cocktail that you can use for removing old log files and archives, clearing caches, etc. Corrupted cache, log, or temporary files can cause application or OS X crashes as well as kernel panics.
If you have Snow Leopard or Leopard, then for similar repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the command line. Note that AppleJack 1.5 is required for Leopard. AppleJack 1.6 is compatible with Snow Leopard. Applejack does not work with Lion and later.
Basic Backup
For some people Time Machine will be more than adequate. Time Machine is part of OS X. There are two components:
1. A Time Machine preferences panel as part of System Preferences;
2. A Time Machine application located in the Applications folder. It is
used to manage backups and to restore backups. Time Machine
requires a backup drive that is at least twice the capacity of the
drive being backed up.
Alternatively, get an external drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Carbon Copy Cloner
2. Get Backup
3. Deja Vu
4. SuperDuper!
5. Synk Pro
6. Tri-Backup
Visit The XLab FAQs and read the FAQ on backup and restore. Also read How to Back Up and Restore Your Files. For help with using Time Machine visit Pondini's Time Machine FAQ for help with all things Time Machine.
Referenced software can be found at MacUpdate.
Additional Hints
Be sure you have an adequate amount of RAM installed for the number of applications you run concurrently. Be sure you leave a minimum of 10% of the hard drive's capacity as free space.
Add more RAM. If your computer has less than 2 GBs of RAM and you are using OS X Leopard or later, then you can do with more RAM. Snow Leopard and Lion work much better with 4 GBs of RAM than their system minimums. The more concurrent applications you tend to use the more RAM you should have.
Always maintain at least 15 GBs or 10% of your hard drive's capacity as free space, whichever is greater. OS X is frequently accessing your hard drive, so providing adequate free space will keep things from slowing down.
Check for applications that may be hogging the CPU:
Pre-Mavericks
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Mavericks and later
Open Activity Monitor in the Utilities folder. Select All Processes from the View menu. Click on the CPU tab in the toolbar. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Often this problem occurs because of a corrupted cache or preferences file or an attempt to write to a corrupted log file. -
Ive recorded a test video with audio/music playback slowed down 65% what speed do I need to speed the video back up to to get it into "real" time?
If I'd slowed the audio playback down 50% I would make the video 100% faster.
If I'd slowed the audio playback down 100% I would make the video 200% faster.
So its obviously somewhere inbetween speeding up by 100-200%
Sorry but its melting my brain today and I cant remember the calculation.
thankshey all
Thanks for the advise on this. I will explain a little more what am have/am intending to do.
I have used Audacity to slow the song down (Effect>Change Tempo)
Audacity will allow me slow the original song down by up to 99% (Or anything in-between up to 3 decimal places)
Unfortunately I am working to a time restraint of 12 minutes per clip (as my DSLR will only allow up to a 12 minute clip).
The song at normal speed is 4 minutes long.
Originally I slowed the audio down by 50% (Making the audio 8 minutes long), lip synced to it using a rasta blaster and recorded the video using my DSLR at 720p 50fps.
I then imported the video and audio I had been lip syncing to into FCPX.
I sped up the video by x2 (equivalent to speeding it up 200%)
Retime>Fast 2X
Layered the PROPER normal speed audio back over the top and all was fine.
Test video complete.
(You can ignore the 65% slowed down audio I mentioned earlier if you like, that was just an example of a slower than 50% audio test)
Firstly what I really want to do is to be able to slow the AUDIO down as much as possible (But still within the restraints of only being able to adjust FCPX retiming within a whole 1 percentage in the final video edit), but have the AUDIO of the song as near to/under 12 minutes as possible.
I will then re-record the video again to this new slowed down audio.
Secondly I will speed up the video from 12 minutes to 4 minutes.
Thirdly I will layer the correct 100% Normal AUDIO on top.
The FINISHED video should then look like everyone is wizzing around at high speed but the guitar playing/lyrics look like they are being played/sung at the normal speed.
Whatever happens (due to the constraints of FCPX) I need the calculations to work so that FCPX is retimed exactly to a whole 1% for the final video to sync up correctly.
So what I need to know in a nut shell is:-
What calculation do I use to work out the percentage to slow a 4 minute song down to a 12 minute song?
What calculation do I use to work out the percentage of how much I need to then speed the 12 minute video up to turn it back into a 4 minute video?
My mind is melting
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