Questions dealing with performance of Apple hardware or software, especially about troubleshooting or improving poor performance.

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1
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2answers
703 views

Is there anything like NVELO Dataplex (hybrid SSD/HDD software) for OS X?

I'm interested in upgrading my old MacBook to using an SSD and moving the data drive to where the DVD drive is using an optibay. Often SSDs come with a licence for NVELO Dataplex software (which is ...
3
votes
3answers
3k views

How much will adding an extra hard drive to my MacBook Pro affect battery performance?

I have a current MacBook Pro 15" i7 2.2Ghz with a 500GB 7200RPM (default) hard drive. I am thinking of replacing both the current hard drive and the superdrive with two Seagate Momentus Hybrid 500 GB ...
11
votes
6answers
11k views

Alternative activity monitors for OS X?

I’m a bit intrigued by the new detailed activity monitors and progress indicators in Windows 8 (copying files, the task monitor, network activity, etc.) It got me thinking: surely there must be some ...
1
vote
0answers
42 views

Preview scrolling speeds?

When using Preview (on OS X 10.8 & 10.9) I noticed that the scrolling speed is too fast. I often read long documents and want to see in advance what are the chapters coming a few pages later. ...
0
votes
0answers
89 views

top / htop for GPU?

I have been having some of the worst performance problems with my Mac Pro that I've ever seen. It seems to start at the darnedest times with no apparent provocation. I've poured through everything ...
0
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3answers
1k views

Poor battery performance on MacBook Pro [duplicate]

I have recently bought a very expensive new MacBook Pro with 8 GB memory and now I am frustrated by its very fast battery drainage. Often I see only 2 hours left on full battery charge! Right now it ...
3
votes
3answers
4k views

Can I improve network speed with VirtualBox between host and guest?

I use a VirtualBox machine with Arch Linux as development web server. I want to improve rsync transfer speed via smb://. What kind of configuration is best to improve file transfer/synchronization? ...
0
votes
1answer
108 views

Why would my Mac be slow after inactivity and then get to full speed after 20-30 minutes of use?

My Macbook appears to get slow after a period of inactivity and then get itself back to full speed after 20-30 minutes. While I have some ideas I'm wondering if anybody else has seen such behaviour ...
1
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1answer
3k views

Graphics card confusion and pro apps

I'm doing a report and researching various Mac graphics cards and how they would work or not work with pro apps. I'm very confused by all of the terminology and specifications, so I hope I can ...
-1
votes
1answer
2k views

Can imagent in OS X Mountain Lion be made to consume fewer resources?

imagent is constantly consuming CPU cycles and a couple of GBs of "real memory" on my wife's MacBook Air since upgrading to OS X Mountain Lion. I believe this is part of the Messages app. Is there ...
0
votes
2answers
129 views

Will downloading LaTeX slow down my MacBook Air considerably?

I've begun downloading LaTeX and the download is 2GB. My MacBook Air has a 4GB 1600 Mhz DDR3 memory and a 1.3GHz Intel Core i5 processor. Will this large download have any impact of the long-term ...
0
votes
1answer
168 views

Where should i look to improve slow I/O performance measured with dd?

I have been measuring my primary disk I/O with the following command : dd if=/dev/zero bs=2048k of=/Volumes/Toshiba/tstfile count=1024 2>&1 | grep > sec | awk '{print $1 / 1024 / 1024 / $5, ...
3
votes
2answers
349 views

Looking for a manga reader for the original iPad hardware

I'm currently using the app icomic with my 1st generation iPad and have used it for probably 2 years. It's decent, but it struggles to display very large images well. Specifically, the images become ...
3
votes
4answers
1k views

Any better way to purge the inactive memory?

Running purge command in the terminal to free the inactive memory isn't really what I think about Apple. Lion isn't doing a great at all when it comes to free the inactive memory. Free memory is ...
3
votes
4answers
15k views

What can I do to speed up a Mac that is running slow?

My mac seems like it is running slower and slower. While I am thinking abut installing Lion from scratch, I figure there has to be stuff I can do now to help. I have reset PR RAM recently, I have run ...
4
votes
2answers
317 views

Samsung SSD 840 speed issue

Can any one explain me this ? I re-install BlackMagic but it ain't change a thing. I'm running 10.9.3 and there is only one partition on the SSD. With the terminal : MBP-Thomas in ~ ○ → dd ...
1
vote
1answer
2k views

How to limit cpu frequency in OS X?

The OS X kernel does control this directly since below 5% my CPU gets locked to 1.2GHz instead of the normal 3.7GHz so there has to be a way to control the CPU speed. I am aware of this question ...
3
votes
2answers
770 views

Changing CPU frequency policies in OS X

I have Core i5 processor with nominal 2.3 Ghz speed. But, according to Intel Power Gadget, most of the time the frequency is much lower. Even during intensive usage. It's 0.8-1.6 Ghz. I noticed that ...
1
vote
1answer
2k views

using external hdd slows down my mac

When I use an external drive via usb, my computer really slows down giving me no choice except reboot. I watched memory usage with activity monitor. Free memory decreases by time and inactive memory ...
1
vote
2answers
2k views

Looking for a free system monitoring tool

I'm looking for a system monitoring tool, preferably a free one. I don't care if it's an actual app or sits in my terminal. Activity Monitor doesn't give me all the information I want at once. ...
0
votes
0answers
3k views

Performances : Intel HD3000 vs AMD Radeon HD 6490M

I'm working on a MBP 15" 2011 with a new motherboard (Apple changed the previous one in december) and I've now this config : i7 Quad 2.0Ghz; 12 GB DDR3; 250GB SSD samsung 840; Intel HD 3000; AMD ...
1
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0answers
497 views

Has a Graphics Driver or Something for Intel HD 3000 Been Changed in Mavericks 10.9.3?

So I updated to Mavericks 10.9.3 and didn't really thing anything of it, it just said security updates. After playing a few games and working on my project with OpenGL, I've noticed that performance ...
1
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0answers
72 views

Terminal speed up doesn't accept command line arguments from outside source?

From a previous suggestion I changed terminals startup command from default to '/usr/bin/bash' which I created as a link to '/bin/bash' which stops terminal from login in every time I open a tab ...
1
vote
2answers
151 views

How to keep data from an old Mac to restore later

I have a new Mac, and I want to selectively move files over from an old Mac. I've sold the old Mac and need to ship it today, so what I really want to do is simply take a complete copy of the HD in ...
1
vote
1answer
680 views

Do I need to zero out a new disk after formatting it?

Does anyone know if I should 'zero out' the new disk I bought? It was NTFS formatted so, unable to use it like that. I did a repartition to HFS+ in seconds, and then decided it might be better to ...
1
vote
1answer
2k views

Mac Mini has slowed to an unbearable crawl!

I've read a lot of other questions about speed, but my question does not seem to be answered anywhere. My Mac Mini is running so slow that I cannot see what I am typing. It takes up to 15 seconds to ...
2
votes
1answer
2k views

Does RAM Disk Improve OS X Performance?

I stumbled this article explaining how mounting RAM disk can improve OS X performance up to 40× which of course is just a a hyperbole. My question is whether the suggestion made by them valid for ...
0
votes
4answers
1k views

Which memory speed for an early 2008 Mac Pro?

I've got an early 2008 Mac Pro with 4 Gb of memory which I would like to upgrade, but I'm unsure of the memory speed. In my "About This Mac" dialog it says the memory speed should be 667 MHz, but ...
0
votes
0answers
429 views

How is swap on mid-2013 MacBook Air w/ PCIe SSD?

There appears to be confusing and incomplete information about the PCIe SSDs in mid-2013 MacBook Air 11" and 13" (especially the 128GB models), where a different queue depth may result in different ...
5
votes
2answers
3k views

Constant SMC resets required

I have a 2009 Macbook Pro, 4GB RAM, 2.26GHz Intel Core 2 Duo. Check battery warning but nothing else overtly wrong. Since I updated to Mavericks (from Snow Leopard), it has been running incredibly ...
1
vote
2answers
2k views

RAM Caching - Exploiting RAM to the fullest extent possible

This may seem weird, but I'm actually looking for ways to increase my memory usage. I have a Macbook Pro (8,1) with 4 GB that I updated to 16GB. I really feel like I'm losing a lot for those 10 ...
3
votes
1answer
288 views

How can I log OS X Server disk performance?

I know Activity Monitor exists to view disk i/o and other performance metrics. However, does Activity Monitor have the ability to log any of these metrics? If not, how can I log these metrics into a ...
0
votes
2answers
67 views

What is the read speed of the SSD in the Macbook Air A1466 model?

I'm having trouble finding a figure or proper specs on Google, and I was wondering how fast it is. Anyone know?
1
vote
1answer
199 views

TV lagging when watching regular TV channels while Apple TV is on

One of my friends is setting up a TV for another friend, and noticed something very odd. I don't know the specifics of the TV, but we're talking a 2014 Samsung Smart TV that hasn't been cheap at all. ...
21
votes
3answers
2k views

How can I figure out which tab in Safari is using CPU?

I usually have several tabs open in Safari in the background, and sometimes I see it taking up an unusual amount of CPU (PluginProcess or WebProcess). How can I figure out which tab (or tabs) is ...
2
votes
2answers
68 views

Measuring page download speed Network Link Conditioner

I'd like to use Network Link Conditioner in conjunction with a local page download speed tool so that I can see how long certain elements take to download when I restrict connection speeds. Can ...
2
votes
0answers
89 views

What causes playing a video in browser to take up all the RAM?

I've been noticing lately that when I'm playing a video on my Mac from say Hulu, Netflix, Youtube, any video site via a browser, the computer gets extremely laggy for 5 minutes and then acts normal. ...
1
vote
0answers
161 views

Does free disk space actually help mac performance?

Anyone will tell you that freeing disk space will make your mac faster - specially noticeable if your disk is almost full. I don't know if that's true. Is it? And why, exactly? I just don't see how ...
2
votes
0answers
327 views

OS X 10.9.2 has slowed down MATLAB

I am using 10.9.2 late 2013 computer to analyze my data, specifically with MATLAB, and generally I have many MATLABs open in parallel, doing some analyses for me. MATLAB, X or Y is completely ...
4
votes
6answers
3k views

Avg load goes up after upgrading to Mavericks

Just upgraded to OSX 10.9 Mavericks. Everything is good and shiny. However, when I open my iTerm to code, I notice that the performance is lower. If I run a uptime command, the average loading is ...
2
votes
1answer
3k views

Safari makes my MacBook incredibly slow - what to do?

System configuration I'm working with a MacBook 2,16 GHz (13" white with the max. 3 GB RAM from about 2007) and "Snowleopard" OS 10.6.8. The problem: performance After a while, the MacBook becomes ...
3
votes
1answer
7k views

How to find out which Safari tab is using massive memory?

As described in my other question, Safari on OS X 10.6. is causing me massive problems (with my way of working like having many tabs in Safari open for a long time). I just realized that after ...
0
votes
1answer
2k views

Most stable/fastest OS X version for an old MacBook Pro

I have a MacBook Pro (15-inch, 2.4/2.2 GHz, mid/late 2007) that has had a few graphics card problems. The logic board has needed replacement a couple times, meaning we stopped using graphics-intensive ...
1
vote
2answers
112 views

Mac is really slow and I can't get Apps to open

When I try to open an App it does nothing. I go online and it is extremely slow. I have tried some of the idea's on here but, nothing has helped. I also tried to download a Clean up program. It isn't ...
1
vote
1answer
172 views

How can I determine why keyboard response is intermittently very slow with large display?

I'm using a Seiki 4k display model SE39UY04 connected via HDMI with a Retina, 15-inch, Early 2013 MacBook Pro at 3840x2160 @ 30 Hz running Mavericks. I've noticed that with the laptop closed and only ...
0
votes
1answer
41 views

Is multi desktop more resource expensive?

I want to understand if connecting a second or third monitor to my MBP means exactly the OS to draw 3x output and stuff, so it is at least 30% more under stress.
1
vote
1answer
2k views

Very slow screen refresh on server screen share

I have a brand new Mac Mini, configured with Intel i7, 16GB, dual SSDs... basically the top of the line Mac Mini you can buy as of 2/1/2014. I also purchased the latest Airport Extreme, with 802.11ac ...
0
votes
1answer
85 views

Am I likely to get a performance improvement upgrading iphone 4 from ios6 to 7.1?

I have an iPhone 4 that I didn't upgrade to iO7 because I'd heard a lot of people saying it hurt the phone's performance, and my phone's performance was already pretty terrible. I've seen people ...
5
votes
3answers
5k views

Bootcamp: is there an advantage of 64-bit vs 32-bit Windows?

I've got the new MabookPro retina. I want to install a dual boot Windows OS. I have the option from MSDN to either install a 64-bit or a 32-bit. Is there a performance advantage? Other advantages?
2
votes
3answers
2k views

Reviving white macbook (Early 2009)

I'm trying to revive my old college laptop which is a white macbook from early 2009. I pasted the hardware a software specs below. The last thing that I did with it was update it to Mountain Lion, ...