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

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19 views

Why was there such a speed increase on cksfv on El Capitan?

I use cksfv regularly to check large files after I ftp them to my machine. Following an upgrade to OSX El Capitan yesterday I saw a dramatic increase in speed for cksfv. I'd say more than 2x speed ...
0
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3answers
5k views

Very Slow Download Speeds from Apple Applications (Safari and Mac App Store)

After I restored my computer to a clean reinstall of El Capitan, I have experienced incredibly slow download speeds in Apple applications only (Safari and the App Store). I tested downloading a file ...
0
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1answer
23 views

Equivalent of disabling services in Windows to lessen CPU/RAM usage for OS X?

When it comes to the underside of things I know a lot more about Windows than Mac/OS X, so I'm not sure if OS X is even like this in this aspect but what I'm wanting to know is I used to very ...
-3
votes
1answer
306 views

My MacBook slowed down after installing El Capitan

After I installed El Capitan on my MacBook, it has slowed down considerably. It is not lagging. It simply takes longer to respond as a little red colored wheel is turning where the cursor should be ...
1
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2answers
45 views

Identifying bottlenecks

In any computer, there is a bottleneck. The processor, the amount of memory, the bus to the hard drive, etc. I just ordered a 2010 MacPro, 12 core, and although the 12*3.33 GHz cores should give me ...
7
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2answers
2k views

What is 'symptomsd" and why is it at times using 60% of my iMac's CPU?

There is a system process on my iMac running El Capitan called "symptomsd" that has been consistently bouncing back and forth between about 20% to 60% of the CPU resource on my iMac. It is running ...
0
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0answers
148 views

Connect with Windows 10 to Mac Mini with Remote Desktop

I want to connect to my Mac Mini over Remote Desktop. So, I enabled Remote Management in Apple Preferences and connect using VNCViewer on my PC. Unfortunately, quality connection is very poor. For ...
1
vote
1answer
107 views

speed up iOS9 on iPad 4?

Ever since I've installed iOS 9 on my iPad it has been quite slow. The network seems slower, for example Netflix often times out. Chrome often shuts down, presumably because it is using too much ...
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0answers
50 views

Slow Mac Mini Performance [closed]

Mac Mini suddenly becomes slow and takes a long time to boot. But it runs fine if I clear the PRAM (by pressing Command+Option+P+R) at the system startup. But it becomes slow if i put my Mac on sleep ...
-2
votes
1answer
60 views

What Is The Fastest Fromatting Cluster Size? [closed]

I've bought a new USB 3.0 stick and I would like to optimize it for speed. Currently, I'm struggling with the cluster size or block size. I've read a lot about it but I could not find a clear answer ...
1
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0answers
39 views

Intel GPU drivers for Linux - can't decide

I installed Linux (Kubuntu) on my MacBook. I always wondered if my graphics card drivers were configured correctly, as any games (and some other applications) running on my computer were extremely ...
14
votes
8answers
13k views

Time Machine ridiculously slow after El Capitan upgrade

I recently updated to El Capitan, and told Time Machine to backup. It got stuck on Preparing Backup for hours, so I stopped it, deleted the InProgress file, rebooted and tried again. After ~30 mins, ...
0
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2answers
63 views

New top-of-the-line MacBook Pro suddenly starts acting old

About a week ago, I got a new MacBook Pro. I work a decent bit in video editing, among other things, so I had the processor upgraded to the highest available model. The box arrives, I open it, and my ...
8
votes
1answer
245 views

Why does Dashlane use so many ports?

I use Dashlane to store passwords, and I like it, but there's one problem I've had with it. I use Activity Monitor to see what's going on, and something strange has been happening with Dashlane ...
0
votes
1answer
32 views

Dead battery is replaced and recognized on MacBook Pro – processor speed is still cut

Just replaced dead battery on MacBook Pro Late 2011, and it is seen by OS (el Captain) and charging OK. Though, processor speed is still being cut and ticks only at 0.8 ghz and Apple Hardware test ...
0
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0answers
100 views

Why the iBooks lags while scrolling EPUB file?

As it is in the question above. Is there sth wrong with EPUB? Because I just bought a new iPhone 6S and iBooks lags while scrolling EPUB file. What can I do to improve performance while I scroll EPUB? ...
1
vote
0answers
250 views

Opening of encrypted sparse bundle in El Capitan very slow

I have a 76GB encrypted sparse bundle on the rMBP SSD drive. Mounting it by double clicking it in Finder was pretty much immediate in Yosemite. With El Capitan a popup appears with "Verifying 'name ...
-1
votes
1answer
71 views

How to compare Macbook Pro with other gaming notebooks? [closed]

Is the graphics card model enough to compare a notebook's gaming performance? If a non-Apple gaming notebook that has better external graphics card than MacBook Pro; does it mean that the game ...
0
votes
1answer
96 views

Computer is generally slow, Applications take 10 seconds - 3 minutes to launch, websites take 5-15 seconds to load, etc

I don't know why but my computer is generally slow. Some examples are: Applications take 10 seconds - 3 minutes to launch, depending on which application. Websites on the internet (all browsers) ...
5
votes
3answers
961 views

Acceptable CPU usage for 4 core 3.4gHz i7

Creating a kiosk application for the Mac and am testing performance and CPU usage. The activity monitor shows a total of roughly 90 to 150% CPU usage for the always up, kiosk processes. My first ...
0
votes
0answers
121 views

Office 2016 performance issues

I just upgraded to a Macbook Pro at work with Office 2016 installed and noticed that all of the Office applications (particularly Excel) take nearly 30 seconds to open (compared to roughly 7 seconds ...
0
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0answers
53 views

Kill Apps Using Too Much RAM

I have unfortunately been saddled with a developer laptop that isn't fast enough. Is there any app which can flag apps which use up too much RAM and prompt me so I can kill them ? For eg: Xcode , iOS ...
6
votes
2answers
4k views

CPU Pushed to Too Much Usage by kernel_task

I have a Macbook Pro Retina with the following hardware: Model Name: MacBook Pro Model Identifier: MacBookPro11,1 Processor Name: Intel Core i5 Processor Speed: 2.4 GHz Number of Processors: 1 ...
0
votes
1answer
101 views

My SSD seems slow, could it be the link speed?

I just replaced my old HD from a late-2009 iMac with a new Samsung SSD 850 EVO 1TB. It was installed by an official Apple repair store but I am worried because it seems slower than my new macboook ...
0
votes
1answer
34 views

5 Minute Yosemite Boot Time?

My spring 2011 Macbook Pro with 5400 rpm drive takes 5 minutes from pressing the on button to boot. I have about 400 GB of RAW and NEF (Nikon camera) files and only Photoshop and Lightroom installed. ...
1
vote
1answer
67 views

How do I investigate my graphics card problem further?

I'm relatively new to OS X and I'm loving it. I've got a MBPr (15″ Late 2013 2.6HGz Core i7 Yosemite 10.10.5 16 GB 1600MHz DDR4 GT 750M, 2GB) that has been serving me brilliantly except for a very odd ...
0
votes
0answers
83 views

Degraded wireless performance on MacBook Air

I have a Mid-2013 MacBook Air that has been acting up lately. I initially started seeing issues with ridiculous jitter(100s of ms) half a year ago, but since I do not game a lot, I ignored them. ...
0
votes
1answer
87 views

How do I manually throttle the CPU usage of an app?

When I export a file from iMovie, it usually takes a long time but uses a lot of CPU, and my computer gets very hot(around 180-190ºF), even with my fan controller maxing it out. Would I be able to ...
2
votes
0answers
56 views

What is Yosemite doing when it has a seizure?

Ever since I installed Yosemite on my iMac, it's become unresponsive for about 5–10 seconds when I do any of a variety of common actions. The following usually trigger a delay: a few seconds of no ...
-1
votes
1answer
519 views

Should I update to El Capitan? [closed]

I don't know whether I should update my iMac to El Capitan or not. I'm planning to use it daily as my primary computer for the next 5 to 7 years (yes, seriously) and too afraid to update to the next ...
0
votes
1answer
215 views

El Capitan UI smoothness on Intel Iris? [closed]

is there anyone who have already tried El Capitan GM on 2013 MBPr (Intel Iris, integrated video)? I'm experiencing freezes and UI smoothness issues with my MBPr 13 late 2013 on Yosemite, so now I'm ...
0
votes
1answer
126 views

Less RAM and an SSD vs. more RAM and an HDD?

This isn't a question about which part of my computer to upgrade. It's a question about what I should buy in my eventual new computer. I have an early 2011 13" MBP with a 500GB hard drive and an ...
0
votes
1answer
864 views

Am I asking too much of my MacBooks performance? Will El Capitan help? [closed]

This is my MacBooks configuration: I'm usually running the following Software: Chrome, Skype, Outlook, Android Studio, Safari, Terminal, AppCode, Xcode, Xcode Simulator, Firefox. Also apart from ...
0
votes
0answers
12 views

Cumulative drive access per process over time?

I would like to isolate what processes are accessing drives the most over a given period of time with as much detail as possible as far as even seeing kernel level access. I have thought about ...
1
vote
0answers
409 views

How to monitor and control thermal CPU throttling in OS X?

I recently came across the Intel Extreme Tuning Utility for Windows. I tried it under Bootcamp Windows and it was very interesting to learn in what situations my MacBook Pro's (mid2012) CPU is doing ...
0
votes
2answers
44 views

What is the best way to save iPhone battery?

Since I've moved to iPhone 4 from a 3Gs, my battery drops down extremely fast. If i use it for 20 minutes at the beginning of the day it goes from 100% to 60% and by 3PM with normal use it's at 20%. ...
1
vote
3answers
208 views

iMac cleanup: can I delete these files?

Using Omni Disk Sweeper, I have listed the very heavy files in my computer in order to, if possible, delete them and free up some space. Of course, I am not going to risk tampering with my system ...
0
votes
0answers
80 views

MacBook Pro 13" Retina RAM upgrade Yes / No

Current Situation : I am trying to figure out if in my situation a RAM upgrade from 8 GB to 16 GB is worth the $. Here is my specific situation. I am a simple apple user with a lot of Data. I ...
0
votes
0answers
122 views

Time capsule wired backup transfer slow with fast “bursts”

This has been asked already by someone else here, but there was no answer so I like to ask myself again. I got literally the same behavior, a slow down in read mode from initially like 50MB/s to like ...
0
votes
0answers
78 views

iOS Network Link Conditioner - difference between “in delay” and “dns delay”?

In the Network Link Conditioner profiles, What is the difference between in delay, out delay, and dns delay? I want to test how my app behaves when it makes a request, and the requested server takes ...
0
votes
1answer
127 views

kernel_task and softwareupdate constantly hogging .5 GB of RAM each [duplicate]

I have a 2011 MacBook Pro. It had 4 GB of RAM and I upgraded it to 6 GB last year as it was getting a bit sluggish with the newer versions of OS X and running Vagrant VMs on it. Lately, I’ve noticed ...
0
votes
1answer
183 views

Why running Time Machine on OS X Server slows down my Mac?

I have MacBook Pro (2.3GHz Intel Core i7, 16 GB RAM, 512 GB SSD - late 2013?) and Time Machine backups data via network to our internal OS X Server. But when Time Machine is running backups, my ...
0
votes
2answers
90 views

Mavericks 10.9.5 RAM problem and performance problems

Macbook Pro Late 2011, Mavericks 10.9.5 had my RAM consumed up to 2.75 GB (out of 4.00 GB) with no apps running except Finder. Hard Disk Storage: ~300 GB free out of 500 GB Creating new, renaming, ...
2
votes
5answers
288 views

What are the Best Ways to Speed Up a Mac?

I have a 2012 Macbook Pro and although it seems to be working fine, over time it has seemed to become more sluggish and less snappy / responsive. So is there any good ways ways that I can 'speed up' ...
2
votes
0answers
438 views

Airport Extreme (5th gen) throttling ethernet internet speeds

I purchased the router in 2012, and am experiencing slower speeds than expected from my Airport Extreme. Brand new 16x4 channel DOCsis3 modem on Time Warner's approved list. 200 Mbps plan, and ...
1
vote
1answer
106 views

Is it possible to upgrade 2.26 GHz processor to 2.4 GHz?

I recently bought a 2009 macbook that I thought would have a 2.4GHz processor (along with 4GB of RAM) but instead has a 2.26GHz processor with 2GB of RAM. (I expected it to be 2011.) I got it fairly ...
0
votes
0answers
44 views

MBP dramatically slowed over the weekend

I have my MBP (13" early-2011 i7) attached to an external screen (not in clamshell mode). I'm not sure what happened over the weekend but the MBP has been possessed somehow; first off it wouldn't wake ...
1
vote
1answer
99 views

How do the MacBook and the MacBook Pro compare performance-wise to an old model iMac?

I'm thinking of purchasing either a MacBook (2015, 1,1 GHz) or a MacBook Pro (2015, 13-inch Retina, 2,7 GHz). I'd like to know how they would compare performance-wise (say, speed on recalculating a ...
0
votes
1answer
93 views

Yosemite or Snow Leopard for 2008 MacBook?

I have a 2008 MacBook which is getting slow, I need to do an erase and reinstall. I have the choice to install Yosemite (online) or Snow Leopard (from a DVD). But would Yosemite be too much for my ...
2
votes
3answers
211 views

Performance of MacBook Air SSD Targeted from iMac

I use a MacBook Air, but would like to put an iMac at my office for a performance boost. I don't want to switch between operating systems, so I'd like to target the Air's SSD (via Thunderbolt 2) when ...