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

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2
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0answers
261 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
2k 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
2k 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 ...
1
vote
1answer
4k 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
1k 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
83 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
137 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
1k 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
79 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
4k 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
858 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, ...
1
vote
0answers
132 views

Show iPhone connection speed

I'd like to know if there is a way to show the current mobile link speed on my iPhone 5s. I mean the "physical" max. of the currently negotiated connection to the cell tower, not the actual ...
0
votes
1answer
85 views

Does clearing Safari's cookies actually help the iPhone's overall performance?

There's an iPhone 4 that has been getting pretty slow lately, so I figured I'd browse a bit about how to fix it. One particular tip several sites seem to suggest is clearing Safari's cookies. I am ...
2
votes
2answers
536 views

Restore from backup or start anew?

I have a new iPad air to replace my old iPad 2. I'm from a PC background but love Apple phones and tablets and have always wondered, from a performance point of view, would it be better to restore ...
0
votes
1answer
155 views

Haswell Macbook Pro Drive Performance

I FINALLY managed to migrate my triple boot mid-2012 rMBP to a new Haswell model, and was very surprised to see this in Win7: On the other machine, the "primary hard disk" score was a solid 7.9. ...
2
votes
3answers
1k views

Would Upgrading to 16GB RAM be Beneficial?

I'm running on an i3 processor, 2010 model, 3.06 GHz. I'm currently have 4GB of RAM, but if I were to upgrade to 16GB, would: Applications open quicker? FPS increase in game? Overall performance ...
1
vote
0answers
110 views

Spring 2010 MBP discrete GPU performace vs current MacBook Air?

I have been using a mid-2010 MacBook Pro with 2.66GHz Intel Core i7 processor, 8 GB RAM, 7200 RPM 512 MB hard drive, and a NVIDIA GeForce GT 330M 512 MB discrete graphics card. After almost four ...
2
votes
2answers
6k views

MacBook Pro 13 inch 2,6GHz versus 15 inch 2.0Ghz. Which CPU is better?

I need a new Macbook Pro and am comparing the 13 inch Retina 2.6GHz with the 15 inch Retina 2.0GHz. I understand that 2.6GHz is faster than 2.0GHz but how does CPU performance compare between the ...
1
vote
3answers
12k views

High memory usage, macbook pro retina feeling sluggish

My Macbook Pro Retina seems to be feeling sluggish and I don't think it should at all. I'm running: photoshop, 1080p movie on VLC plugged into a Thunderbolt Display. Looking at the activity monitor ...
0
votes
2answers
2k views

MacBook performance while on battery vs plugged in

Should I expect my MacBook Air to run slower while on battery vs while plugged in? In other words, will it slow down the CPU/graphics/etc while on battery to conserve power?
1
vote
0answers
322 views

How do I remove akamai and speed up my iMac?

I have an iMac (running Leopard) going deadly slow, I discarded any hardware problems (Hardware tests, disk utility, etc..) and the only strange thing I've found is a folder called 'akamai' After ...
1
vote
0answers
1k views

What are the consequences of running the 13" retina MPB in higher native resolutions

This question is basically about how do different resolution settings affect the performance of your macbook. By default retinas are set at the "retina" display mode. You can also set them to the ...
0
votes
2answers
10k views

What would be a good SSD drive for a MacBook Pro mid 2010?

I'm thinking about updating a bit my Macbook Pro mid 2010 adding to it 8Gb of RAM and maybe a new hard drive, a solid one (SSD) of probably 240Gb. Which SSD would you recommend me? I'm looking for ...
1
vote
3answers
180 views

64bit vs 32bit on mobile devices with 2gb ram - is there any sense?

Today I took part in an interesting discussion. Someone said that's great that Apple goes 64bit with their iPhone 5S. Of course I mentioned about no need for 64bits paired with 2 gigs of RAM, but then ...
1
vote
0answers
90 views

Acceptable and unacceptable speed for an external USB disk

I think my external HDD is running way too slow but I am not sure. Using XBench I get the following results: Seq: Uncached Write 0.79 0.49 MB/sec [4K blocks] Uncached Write 0.21 0.12 MB/sec ...
2
votes
1answer
2k views

Explanation for Ridiculously Slow Copy Speed

I am backing up data files from one encrypted image to another. They're text files ranging in size from a few hundred kilobytes to a few megabytes. The process has become excruciatingly slow and is ...
2
votes
0answers
45 views

Chrome loads very slowly while Safari very fast

Chrome loads any web page very slowly. Even making a google search takes more than 15 seconds while the same occurs in Safari instantaneously. I cleared the cache and disabled NPAPI plugins as ...
0
votes
0answers
625 views

Sometimes I can run Civilization V on my 2013 MacBook Air, sometimes not, why?

I realise the 2013 MacBook Air doesn't quite meet the game's minimum requirements, but I can sometimes run Civilisation V. Sometimes it loads, fires up the fan, but sits there with a blank screen ...
0
votes
2answers
59 views

USB3 HDD on an USB2 port vs thunderbolt

I need to buy a new HDD (>2To so no SSD solution, unless you know a very attractive offer) and I was wondering about performance knowing this : MBP 2011 (2 usb 2.0 - 1 Thunderbolt); 7k2 HDD. What ...
4
votes
2answers
3k views

How can I diagnose or fix the CalendarAgent occupying a whole CPU on Mountain Lion?

Since I upgraded to Mountain Lion from Lion I see the CalendarAgent process occupying a large amount of 1 CPU on my late-2008 MacBook Pro. To fix this (as suggested by a Google result) I tried ...
2
votes
1answer
93 views

Does OpenCL automatically use all GPUs in my system?

Through dumb luck, I've ended up with 3 OpenCL-capable graphics card in my Mac. I even ran the little "list all your OpenCL devices" sample program from Apple, and it lists all of them. Do programs ...
0
votes
0answers
187 views

Reduce impact of Disk IO on performance

I've never found that OS X has been exemplary at handling responsiveness under Disk IO, but Mavericks has made it so bad that I've been barely able to use my machine whenever a backup kicks in. ...
0
votes
1answer
182 views

Ideal iMac For programming (and some photoshop) [closed]

I am going to get a 21.5" iMac. It will primarily be used for Android, iOS, and web development, but may occasionally be used for some photoshop. Any other uses I have for it will be insignificant ...
0
votes
0answers
50 views

How can I prevent “Open With…” from accessing external drives?

Frequently, when I try to open the (10.9) Finder's "Open With..." menu, I experience a delay that appears to be due to connected FireWire drives. This delay is very long when the drives need to spin ...
1
vote
0answers
78 views

MacBook Air is slow after inserted and removed USB audio player

I have a first generation MacBook Air. I plugged in a USB memory stick, which is actually a 2 GB MP3 player but serves as a memory stick as well. Finder never shows the content of the memory stick. ...
0
votes
1answer
114 views

iMac 2009 works slow

iMac (model 2009, purchased in late 2012) sometimes becomes extremely slow. I've opened the "System monitor" and discovered that there is a huge lack of RAM. But as you can see there is no app ...
1
vote
0answers
41 views

TimeMachine performance issues on OSX Server 10.7.4

we are running OSX Server 10.7.4 on a MAC Pro (Mid 2010). Enabled services are Mail, Calendarserver, Contacts and Websharing. The Server has a Xeon Quad CPU and 32GB of RAM. A timecapsule is ...
1
vote
2answers
250 views

In Activity Monitor, is the percentage out of each core or out of each virtual core?

I have my new MacBook Pro with 2 cores. However, the Activity Monitor shows me 4 “virtual” cores. (I don’t really know what a “virtual core” is.) If the processor is running at maximum, what ...
2
votes
1answer
3k views

How do I improve gaming performance with Parallels Desktop for Mac?

I have a late 2012 MacBook Pro 13" non-retina display and I use Boot Camp to dual-boot windows and Mac. I recently came across an application called Parallels Desktop for Mac that promised faster and ...
24
votes
5answers
1k views

Is there any way to speed up my iPhone 3G since upgrading to iOS4

I have recently upgraded my iPhone 3G to iOS4 and there is some noticeable performance issues will some of the basic tasks (text messaging, loading application, etc.) I have restarted my iPhone and ...
0
votes
1answer
252 views

Will Upgrading to Mavericks Slow My System? [duplicate]

I have a 2010 iMac and I'm considering upgrading to Mavericks. Will I notice any significant decreases in speed? My specs:
0
votes
0answers
192 views

Is there anything other than ZDnet Clock that I can use to overclock Macbook Pro (Zdnet version incompatible)

It's a mid-2011 Macbook pro model. I tried with Zednet but it said my model is not supported. I've added more ram to my Mac but am still looking for a way to make it faster.
2
votes
1answer
2k views

Understanding active, inactive, free and swap memory allocation

this is a conceptual question that came up from an issue I have. I've been monitoring memory usage with iStat Pro and Activity Monitor for some weeks, since my MacBook Pro (OSX 10.8.4 Mountain Lion ...
0
votes
1answer
10k views

Macbook Air i7 vs Macbook Pro Retina i5 [duplicate]

I'm thinking of buying either a high-end 13'' Air (i7 and 8GB RAM $1,549.00) or 13'' rMBP with an i5 ($1,699.00). Setting aside portability, display and other differences which I'm still pondering, ...
1
vote
0answers
142 views

Macbook Pro Late 2011 stuck at 0.8 GHz

I have been experiencing a lot of problems with my Macbook Pro slowing down and crawling through small tasks like getting mail and opening Launchpad. I have 8 GB of 1333 MHz DDR3 memory and a 2.2 GHz ...
0
votes
1answer
276 views

Which background processes can I disable to speed up my Mac

If I'm on an old Mac and I just want the basics (web browsing, text editing, multitasking) to run a lot faster and I don't mind losing out on bells and whistles or temporarily disabling unneeded ...
2
votes
1answer
7k views

How to check if MacBook battery is genuine?

My white MacBook's battery has completely died, so I'm looking for a replacement. It costs $150 from Apple, or about $70 for allegedly genuine Apple batteries on eBay: I'm leaning toward this ...
0
votes
1answer
262 views

OS X software RAID 0 with 6x SATA SSD?

I will be able to use a former video editing "Mac Pro" :) for a bit, free to configure anything I want in software. I would like to experiment with setting up OS X software RAID 0 with 6x SATA SSD. ...
3
votes
2answers
4k views

Process “ubd” high CPU usage

I noticed my MBP got really slow, which must be strange with SSD and 8GB of RAM. So I opened the Activity Monitor to discover a process called ubd keeps its CPU usage very high, about 120% most of ...