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

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1answer
31 views

Slow mac when Terminal have been open for some time

When I have Terminal.app open for some time (mostly after 2-3 hours), everything starts getting slow. When I type there is a delay for each character, and all applications lag when I scroll. If I ...
-1
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0answers
30 views

macbook pro 15" mid 2012 with 16gb works slow [on hold]

adobe programs such as after effects photoshop and illustrator works really slow on not complex documents i ran etrecheck and here is what i got : Problem description: MacBook Pro works slowly 15” ...
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0answers
26 views

Deleting content of /private/tmp moved on different HDD

I have a Macbook pro with 2 internal HD (stock HD for data and data doubler + SSD in place of the optical drive, hosting the OS). I'm now trying to optimize this setup to take into account the ...
1
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2answers
65 views

My Mac recently using RAM like hell?

I have 8 GB of ram and I have only 1.25GB free memory left, not enough to run 2 tabs of gmail. for chrome keep asking me to kill the process of my Gmail which 2-3 days ago I'm always have like 2-3GB ...
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2answers
29 views

Performance Tweaks/Tools for MacOS (Macbook Pro)

I am using a Mid2010 Macbook Pro (2.5 GHz i5, 8GB RAM, regular HD (no SSD) and still on MacOS 10.9). I am fully aware of the fact that, as the computer gets older, it may get a little slower due to ...
1
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0answers
58 views

Extreme slowness after upgrade to Yosemite; is my specific problem happening to others or just for me?

Like many, my Mac (iMac) has become extremely slow when performing certain operations and it's making it nearly impossible to get work done. I've been paying close attention trying to find some ...
1
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0answers
36 views

Multicoloured circle of death since Yosemite

I have had my Macbook Pro MacBook Pro (13-inch, Early 2011) 2.3 GHz Intel Core i5 Memory 4 GB 1333 MHz DDR3 for about 3 years now and it has gradually got a bit slower in responding. I have a very ...
2
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0answers
435 views

How much difference between i5 and i7 13" Macbook Pro 2014 especially for XCode & Visual Studio compilation? [closed]

I have been trying to decide if there will be a substantial difference between the i5 and i7 processor for compiling and running VMs. I expect to run Windows with Visual Studio in a VM as well as a ...
0
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1answer
29 views

Lightweight Mavericks installation

What should I do to aggressively lower the memory usage of my Mavericks installation ? The only things I need to run are XCode and Firefox, everything else can go out the window; I'm not opening any ...
0
votes
1answer
48 views

Macbook Air 13 inch (256 GB/ 8 GB/ i5) along with Windows (Using BootCamp)

I am completely new to the Mac and I am planning to buy MacAir (256 GB/ 8 GB/ i5) model and want to use Windows 7 along with it using BootCamp. I have no problem with MacOSX but need to use Windows ...
1
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2answers
43 views

Booting from an external SSD

I have a late 2009 i7 iMac that spends most of its time reading and swapping files from the 2TB hard drive, even though it’s only 40% full. I want to buy an affordable (240GB/£160) Firewire external ...
4
votes
5answers
820 views

Yosemite: Accessibility zoom + multiple monitors = poor performance

Ever since upgrading to Yosemite, the accessibility zoom feature is unusable when connected to an external monitor. Video showing the problem (found on YouTube, not mine) Steps to reproduce: ...
0
votes
1answer
44 views

Are the two cores of rMPB enough?

I am thinking of purchasing a 13" rMBP. It has two cores. My question is, are two cores enough ? there are other laptops with 4 cores at much cheaper rates available. How does apple seem to pull it ...
2
votes
3answers
101 views

Upgrading my Mac: Will it increase performance?

I have a macbook pro 13" 5,5 late 2009 edition, I use it all the time for taking notes and research at college etc. but I also use it to record music for my band and occasionally I play games on it. I ...
2
votes
0answers
54 views

Prevent Open/Save dialog from solliciting external hard drives

I have several external drives, which I don't use constantly, and so they spin down, and rest. Unfortunately for me, every time I have the "Open..." or "Save..." dialogs, Mac OS X spins these hard ...
2
votes
2answers
50 views

Is Mac OS X keeping constant track of my processes?

I own a 13-inch Mid 2012 MacBook Pro with a 2.5GHz i5 processor and 8GB of RAM, running OS X 10.9.5. I came to notice a while ago, that after having forced a reboot (by holding down the ⌽ Power ...
28
votes
6answers
6k views

WindowServer high CPU on Yosemite

This is a follow up to So my Yosemite install is slow - what to do? Since installing Yosemite a week or so ago my machine is very sluggish. I am a web developer so I change windows/apps a lot. ...
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3answers
40 views

2010 Mac Mini Downgrade

I have a 2010 Mac Mini with no DVD drive and a 5,400 RPM hard drive. Of late, it's begun to get quite sluggish, and I'm fairly sure it's the slow HDD that's to blame. I took a look at the means of ...
1
vote
2answers
126 views

Does a Boot Camped Windows alongside a Mac OS X partition profit from a Fusion drive like Mac OS X does?

While writing an answer to this question Should I defrag my SSD before creating a partition for Boot Camp? i wondered if a Boot Camped Windows profits from a Fusion drive like OS X on the same drive ...
1
vote
1answer
216 views

New MacBook Pro slow performance, battery not working

I have a very recent (mid-2014) MacBook Pro Retina 15" that has been working fine since I got it (about two months). Suddenly, it has begun to run very slow in all apps, even though CPU usage is very ...
1
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0answers
53 views

Is there an update for the MacPro3,1 overclock utility that ZDNet produced several years ago?

The Mac Pro from 2008 (MacPro3,1) is still a fairly relevant machine in the modern OS X as not only does it run the latest releases of OSX, but also the 8 CPU cores that it came with provide enough ...
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0answers
52 views

Macbook Pro 17 Early 2008 - Mountain Lion - SSD Slow Performance

I have noticed significant performance degradation on my Samsung EVO running on an Old Macbook Pro, Intel Core 2 duo. Are there any SSD tips that I should apply to this hard drive? Will Trim Enabler ...
0
votes
2answers
52 views

Real performance boost with multiple partitions

I have a 1TB Hard drive with multiple partitions where I had previously installed Snow Leopard. Now I'm making a clean install of Mavericks and I have a couple of questions: 1) What are the real ...
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0answers
127 views

Internet Speed Issues on iPad and IOS 8

My iPad4 is running slower on IOS 8.02 than on IOS 7. I noticed this when I updated to IOS 8 several weeks ago. My Optimum service provides 50/25 download/upload megabit service, which I experienced ...
1
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3answers
203 views

Bootcamp + Windows 8.1 + Apple Macbook 2011

Recently I installed Windows 8.1 64bit on my Macbook Pro (2011). Everything went fine and I am able to duel boot using Bootcamp. Only issue I am facing is poor performance in Windows. Its taking ...
1
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0answers
26 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
3answers
294 views

Why is my late 2013 iMac so slow?

For the last three months I have been more or less enjoying my new late 2013 21" iMac. I already have an early 2011 MBP, which is pretty maxed out with a 512GB SSD and 8 GB of RAM, and still feels ...
0
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0answers
34 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
votes
0answers
32 views

Advanced techniques to diagnose performance problems on OS X via DTrace or other means?

I am having some severe performance problem with my OS X workstation at the moment that is proving to be exceptionally elusive. I normally can hunt things down with a handful of tools such as top or ...
0
votes
1answer
49 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
vote
1answer
791 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 ...
0
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2answers
65 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
68 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, ...
0
votes
3answers
1k views

Poor Diablo III: Reaper of Souls performance on a rMBP late 2013

I just got a new rMBP (with dedicated video-card) and as a test I decided to run Diablo III: Reaper of Souls on Ultra settings. It looks absolutely gorgeous but its 10-17 fps frame-rate is very ...
0
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0answers
11 views

How does having a full hard drive affect performance? [duplicate]

My OSX-using friends insist that having a hard drive that is nearly full (e.g. 90% full on a 250GB disk) causes performance problems. It seems to be a pretty common opinion amongst my (mostly ...
0
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0answers
136 views

MacBook Air CPU Limit Notification

My MacBook air is intermittently slowing down and has very high fan speeds. It went to apple for a replacement logic board and has had these issues since the replacement. Running application monitor ...
1
vote
1answer
518 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 ...
3
votes
2answers
235 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 ...
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0answers
142 views

How to clean up my iPhone 4S junk files?

I have used my iPhone 4S for about 2 years during which time a lot of junk files left. Does anybody know some clean software that can this for me?
1
vote
2answers
467 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
1k 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 ...
3
votes
3answers
8k views

Kernel_task using 300% CPU time, high fan speed and slow computer in MacBook Pro

My MacBook Pro has become slow lately. Activity monitor shows kernel task is using around 300% CPU. The fan is always on at high speed. Below are the details of my computer: Macbook Pro 13-inch, Mid ...
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0answers
379 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 ...
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0answers
55 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
1answer
307 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
2answers
127 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 ...
0
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0answers
219 views

Macbook Pro (Late 2010) slow after installing Mavericks

I've recently updated my 15-inch, Mid 2010 Macbook Pro to Mavericks. Since then, it's been running incredibly slow and tends to hang while using programs such as FireFox or Excel. If I look at the ...
1
vote
1answer
580 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 ...
1
vote
1answer
554 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 ...
3
votes
2answers
2k views

Will a 1.8GHz MacBook Air be much faster than a 1.3GHz model?

I am looking to purchase a refurbished Macbook Air from Apple's refurbished store. When comparing the models there are two I am looking at. The difference between the two is slight but one of the ...