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

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0answers
359 views

Using scaled resolution in Macbook Pro Retina can cause overheating?

I'm using a late 2014 13 inch macbook pro retina. I'm using a scaled resolution of 1680*1050. When using this resolution, i don't know why, my laptop gets overheated. How can i fix it?
0
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1answer
33 views

Does `dtruss -p PID` list system calls made before dtruss was run?

I'm trying to diagnose an intermittently slow command. When I run the command and see it hanging, I press control + t to get the PID, then in another tab, run diagnose [PID] - eg, diagnose 123. I've ...
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2answers
1k views

On Macbook Pro, how to tell if my hard drive access speed is a bottleneck to my current computer performance?

I'm considering giving my 2010 Macbook Pro an upgrade. Whether upgrading its 500 GB hard drive to SSD drive is a priority depends on how much it bottlenecks the computer's performance. Is there a ...
0
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1answer
92 views

Is it possible to reserve exact amount of space for the indexing and virtual memory?

Is it possible to reserve exact amount of space for the indexing and virtual memory? I have Macbook Air with 128 GB SDD (with OS X Yosemite). When I run out of memory (free space less than 1 GB) the ...
1
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0answers
63 views

Optimize filesystem for speed over integrity

On Linux, I use the noatime,nodiratime,nobarrier,data=writeback mount optioins in /etc/fstab to trade filesystem safety/consistency/integrity for speed which makes sense for local development. Is ...
1
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1answer
837 views

Is there a problem with GeForce 750M performance on gaming?

I play games on my Mid-2014 retina MBP, which has both Iris Pro and GeForce 750M 2GB. One of the games that I play (League of Legends, which has a 'beta' OS X client, but I highly doubt that this is ...
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2answers
406 views

Kernel_task boosts CPU to 300%-500% (Yosemitte MBP 2011 without a battery) [duplicate]

Long story short, my oldie MBP 2011' battery started bloating, I've contacted a repair service center and they advised me to remove the battery and use it on AC power, while they get a new battery for ...
0
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1answer
300 views

Use *Two* Thunderbolt/Firewire adapters on MacBook for 400 and 800 devices?

I'm completing an audio recording setup. Equipment: Macbook 13" Retina late 2012 with Two Thunderbolt ports One Focusrite Saffire audio interface (Firewire 400) One OWC Mercury external SSD drive ...
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0answers
168 views

Difference in performance between iOS devices

I'm developing a game for ios and notice surprising results performance-wise between my devices. for example, my iphone 5 will perform better than my ipad mini retina. I really have no point of ...
1
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1answer
117 views

How to manually control processes launched on start?

Every time my Mac starts, about ~210 processes are launched, requiring about ~1000 OS Threads. With every Apple update this number increases. My laptop freezes for 1-3 min a couple of times per week ...
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3answers
4k views

Why my MacBook Pro is so slow?

I have a MacBook Pro Mid 2012 (MacBook Pro 9,2). Few years ago I was using previous versions of Mac OS X, and it was a great experience. I've found it delicious OS for personal use. Today I use ...
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0answers
365 views

Chrome/Chromium scrolling is choppy and eats CPU

This problem has been around since I got my Macbook Pro Retina 2013, 13", 2.4Ghz, 16GB RAM, 256 GB SSD. Currently it's running the latest version of OS X Yosemite. Chrome's scrolling performance can ...
0
votes
1answer
174 views

Are there any autocompletion input tools for English? Except default TextEdit app

I'm a Mac user who is a Japanese. I usually type Japanese using Google IME which enables me to type it with predictive texts so that we can type it faster. Google IME http://www.google.co.jp/ime/ ...
0
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1answer
356 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 ...
0
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2answers
494 views

How to speed up old MacBook Pro15 inch late 2007 with 4GB RAM (2.4 GHz)

I am running 10.9.5 (Mavericks) and have about 12GB available on my hard drive with 2.2/2.4 GHz. I have noted that performance has been getting slow (esp. on startup) and was wondering if there are ...
1
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0answers
50 views

Disk activity, how to improve it?

Activity Monitor tells me that my Disk Activity is too high even when I'm not running 'heavy' programs. I have an iMac with Mac OS 10.6.8, processor 3.06 Ghz Intel Core 2 Duo, Memory 4GB. Is there ...
0
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1answer
459 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 ...
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3answers
353 views

Macbook Pro 13" Mid 2014 disk defect?

I just bought a MBP 13" mid 2014 with a 128 GB SSD. When doing a disk speed test with the Black Magic Design-app, I only get about 210 MB/s write and about 510-550 MB/s read. All the benchmark videos ...
5
votes
2answers
23k views

How can I monitor the FPS in OSX?

I'm looking for a solution to monitor the refresh rate of the OSX. In several reviews like this one about the retina Macbook Pro by Anandtech they report actual fps to discuss the performance of ...
0
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2answers
2k views

How to monitor CPU core usage?

I have a Macbook Pro 15" with the quad core i7. I am looking to see what if any performance decrease I could expect moving to a 13" Macbook Pro with a dual core i7. To that end I thought Activity ...
2
votes
0answers
457 views

FreeNAS, OS X Yosemite and automount

I've got FreeNAS 9.3 server (HP Microserver N54L) and connecting to it via NFS from my multiple OS X systems (running OS X Yosemite 10.10.1). I've always had low performance over the network (1Gig ...
0
votes
1answer
246 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 ...
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2answers
801 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 ...
0
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3answers
1k 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 ...
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0answers
686 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 ...
0
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4answers
7k views

Vagrant/VirtualBox extremely slow despite 8GB-RAM/SSD-HD/2.53GHz Core2Duo

My VM (Ubuntu Vagrant VM) is extremely slow. While my Windows co-workers have a maximum of 1 minute page load time, my page load takes up to 8 minutes. I tried putting log files in non shared ...
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0answers
142 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
votes
1answer
124 views

Emulating lower speed CPUs on Mac mini

I would like to ask whether it is possible to develop OS X application (especially for Lion) on a Mac mini, being able to test how the performance would be on a lower speed CPU. For example: ...
4
votes
0answers
11k 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 ...
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3answers
3k 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 ...
4
votes
1answer
3k views

How do I debug Airport Extreme (5th gen) + iPhone 5 wifi performance problems?

Right around when I bought iPhone 5s for my wife and me I also moved in to a new, larger house. I was finding that wifi performance on our fancy new phones was terrible: I have a 35mbps internet ...
0
votes
1answer
88 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
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1answer
128 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 ...
5
votes
2answers
928 views

Cursor stuttering: “IOHIDSystem cursor update overdue. Resending.”

My 2011 iMac running Lion recently developed a new problem; the mouse cursor stutters. At random intervals when I move the mouse it lags, then jumps, like it missed a couple of frames. Ordinarily I'd ...
1
vote
2answers
189 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 ...
6
votes
3answers
2k views

Is the i7 2.3 Ghz CPU significantly faster than the 2.2 one?

I'm shopping for a 17-inch MacBook Pro and trying to figure out my minimum specs. From the Apple website it appears these are the two procesor options... 2.2GHz quad-core Intel Core i7 processor ...
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2answers
5k views

How fast is 256GB to 128GB on mid-2013 MacBook Air?

I've tried finding the comparison reviews of the performance differences between 128GB and 256GB PCIe SSDs of mid-2013 MacBook Air 11" and 13" (which now have been carried over as the ...
0
votes
1answer
75 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
0answers
107 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
3answers
629 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
2answers
955 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 ...
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votes
5answers
2k views

How do I increase rendering speed on Final Cut Express?

How do I increase render speed on FCE? I have several overlaid HD video tracks, and it is SLOW. EDIT: I am on a MBP 13", 2.3 GHz Intel Core i5, 4GB 1333 MHz DDR3. The render disk is an external USB ...
0
votes
3answers
65 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 ...
2
votes
2answers
64 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 ...
6
votes
1answer
18k views

Monitor GPU performance on OSX

Is there an application or tool that can monitor GPU performance on OS X? Specifically I would like to see the current speed/utilization and temperature of the integrated NVIDIA chip. For Windows, ...
0
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0answers
100 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
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2answers
206 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 ...
3
votes
1answer
1k views

How to debug slow terminal prompt?

Ever since I upgraded to Mavericks, the Terminal prompt became a bit slower at coming back. It's not a huge deal, but there's now a slight noticeable delay before the prompt comes back (maybe like a ...
2
votes
2answers
885 views

Why does Reminders seem to be syncing with the network, even though I have reminders turned off in iCloud settings?

I started using Reminders.app as soon as I got iOS 5.0, and for me it mostly works very well. As soon as I got an iCloud account, of course I turned reminder syncing on there as well. However I soon ...
4
votes
5answers
3k views

Can spotlight be reset when it misbehaves, is wrong or constantly indexing?

On my 4-month old mid-2012 MacBook Pro I observe that Spotlight seems to want to ALWAYS re-index. I frequently notice that the performance will get unbearably slow and I can hear the hard drive ...