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

learn more… | top users | synonyms (2)

5
votes
1answer
626 views

How To Record CPU and Memory Usage Data

I want to profile the execution of a program to see what in particular is slowing it down - whether it hits a memory cap or if my CPU is not powerful enough. Activity Monitor (the one that comes with ...
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 ...
1
vote
0answers
279 views

Guide on removing unused Agents and Daemons to speed up MacOS

Can you point me to a good guide on spotting and getting rid of running Agents, Daemons and Processes that aren't useful to me anyway and are taking up memory and CPU cycles?
1
vote
0answers
147 views

How about Parallels 7's Lion support especially in graphics performance?

I heard that Parallels 6 lack of GPU acceleration with Lion guest. So it's very slow. How about this on Parallels 7?
0
votes
0answers
27 views

WiFi slow down drastically when iPhone 6s connected

Good day everyone.. (not good for me obviously) I have questions about my iPhone 6s (iOS 9.3.2) connecting to my TP-Link Router (Model No. TL-WR740N / TL-WR740ND) and its performance. Whenever I ...
0
votes
0answers
35 views

I don't get proper internet speed on mac

I don't get proper internet speed on my macbook pro mid 2015 model. My ISP have one FTP server where I get on average 5 to 6 MB/s speed and internet speed about 300 KB/s in other website on my other ...
0
votes
0answers
14 views

Typing and UI lag, yosemite

I have a macbook pro 13" mid 2009 with SSD and 8GB RAM. It runs Yosemite 10.10.5. When I changed the original HD with an SSD and installed Yosemite (a few months ago), the computer started working ...
0
votes
0answers
22 views

Is there a way to change only the horizontal scrolling speed on an apple corded mouse?

I have the latest macbook pro running the latest osx and i am using the corded mouse. Hope i could use the magic mouse but i am stuck with the crap corded one for now. I can say i am OK with it, apart ...
0
votes
0answers
9 views

What happens when PCIe boost circuits are overloaded?

In my understanding, the 2010 Mac Pro is rated for 75W of power for each PCIe slot, plus 75W for each of the two 6-pin boost (aux) circuits. I know it's possible to exceed these limits, because I do ...
0
votes
0answers
36 views

Java/Scala programs running on my mac are slow

I'm using my Mac machine (Macbook Pro 2015, with SSD) for work, doing mainly Java/Scala development with it. The machine I'm currently using is about half a year old, fresh install, with some ...
0
votes
0answers
22 views

Is there an alternative to hiding an application that will reduce the performance demand?

I'm just wondering if there is an alternative to hiding an application, that can reduce the performance demand of a program. I'm curious because I use blender from steam, but steam won't close unless ...
0
votes
0answers
15 views

Limit frame rate on specific apps? (speedhack)

I'm working on an application that tests a player's reaction speed level by level, however I'm having difficulties implementing higher levels as my own reaction speed is only average. Is there any way ...
0
votes
0answers
67 views

Throttle ONLY Internet upload in El Capitan (not all network activity?)

I've got a mac mini running as a (mostly) headless server. Occasionally in the day it brings my horrendous internet connection down by maxing out the upload with various services it runs. I was ...
0
votes
0answers
18 views

MacBook Pro 17" Late 2011 - Does the Optibay support SATAIII SSD?

I have a Late 2011 MacBook Pro 17" with an SSD in the main drive slot and a HDD in the optibay. Yet I was interested in installing a RAID0. I have checked with system profiler to see that, of course, ...
0
votes
0answers
39 views

Can I conclude that I have to upgrade my mac's RAM based on these stats?

My 2012 13 inch MacBook Pro has become real slow, even when just a few programs like Itunes, Safari or Spotify are opened. I've been cleaning up my HDD, but I don't feel like it's speeding up. So I'm ...
0
votes
0answers
105 views

MacBook Pro 13-Inch Retina Mid-2014 slowing down badly

Recently I started facing issues with the web surfing and some features in the Mac OS X. For the most of the web surfing I use Google Chrome, and a few websites like Facebook lag a bit on my ...
0
votes
0answers
185 views

Resolve constant fps drop

approximatly 2 weeks ago I could notice a constant fps drop from 60fps to 30fps in games (League of Legends). I tried to set the graphic settings from medium to low and to pin the fps to 60 with ...
0
votes
0answers
21 views

How to analyze Safari 9 during responsiveness issues?

I am having some odd problems since the 10.11.1 update wherein Safari has been performing rather poorly. It takes some seconds to even start responding when focus is switched over to it and other odd ...
0
votes
0answers
224 views

How do you remedy iMac (2009) slow start-up, and sluggish performance?

here are my system details: OS X El Capitan - gold iMac (21.5-inch, Late 2009) 3.06 GHz Intel Core 2 Duo 12 GB 1067 MHz DDR3 I have reduced startup to 1 or 2 apps, have at least 75GB avail on 500GB ...
0
votes
0answers
35 views

Speed MacBook mid 2010 to run faster?

My MacBook has been slow for several OS updates; I've removed all documents and unused applications. Is there anything I can do to upgrade my mid 2010 MacBook to run faster?
0
votes
0answers
20 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
votes
0answers
155 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 ...
0
votes
0answers
104 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? ...
0
votes
0answers
124 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
votes
0answers
54 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 ...
0
votes
0answers
94 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
0answers
13 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 ...
0
votes
0answers
81 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
134 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
83 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
0answers
47 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 ...
0
votes
0answers
185 views

Is there a program to monitor GPU processor usage in Yosemite?

iStat only reports memory usage, but I'm looking to see how much of the processor is being used from the AMD M290x graphics card in my iMac. Is this possible?
0
votes
0answers
204 views

Skype is using 60% to 80% CPU

I have a Mid-2014 15" MacBook Pro with an Nvidia graphics card. Skype uses around 60% - 80% CPU on my computer when I make a call (doesn't matter if it is video or voice call). I tried doing SMC and ...
0
votes
0answers
40 views

Slowness around Messages in iOS

I have a couple of different symptoms of extreme slowness in Messages which I think are related: Opening the Messages app itself sometimes takes 20+ seconds Opening a conversation within Messages ...
0
votes
0answers
145 views

Pros and cons to JBOD setup on MacBook Pro with two internal SSDs

I've got an original Apple-installed 120GB 3G (3Gb/s) SSD which I'll be moving into the optical bay using an OWC "Data Doubler" and swapping a new 240GB OWC Mercury Electra 6G (6Gb/s) SSD into the ...
0
votes
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
votes
0answers
128 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
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 ...
0
votes
0answers
439 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 ...
0
votes
0answers
745 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
0answers
56 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 ...
0
votes
0answers
209 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
0answers
281 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.
0
votes
0answers
288 views

Are there serious problems using a 2012 MacBook Air (13 inch) for web development?

Hello I am totally new to the Mac world and I am interested can I use the MBA for web dev. My needs are modest: Adobe Photoshop CS6 Sublime Text 3 MAMP/XAMPP I do not need to optimize for 3D ...
0
votes
0answers
735 views

How to troubleshoot slow-as-molasses Safari 6?

When I upgraded to Lion, Safari 6 came along, and I find it so slow that it's almost unusable. The problem is most pronounced when first fetching pages, especially in the first few minutes after it ...
0
votes
0answers
194 views

Apple TV required switching hardware / mobile WiFi router

I am considering Apple TV for a trips, but usually the hotels' wifis' connections are separated. I came up with using my Vodafone branded Huawei R201 mobile wifi router for that purpose, but I am not ...
0
votes
0answers
57 views

Is there a way to monitor the stack of execution in order to find the longest hangs?

Related to this unsolved mystery: apple.stackexchange.com/questions/62416/why-do-i-get-serious-execution-lag-on-clicks-application-switching-and-general I'm wondering if there's a way to see which ...
0
votes
0answers
92 views

Apple iPad - intermittently crashing

I've inherited a 1st generation iPad. It seems to work fine, except for the reason I inherited it, which is that every so often, whichever app is running will simply close for no discernible reason. ...
0
votes
0answers
137 views

Measure Application Load Times?

Anyone know a way to measure application load times? I've looked at instruments but having a hard time pinning down the statistic/event I should be looking for. I want to measure how long it takes ...
0
votes
0answers
206 views

iPad/iPad2 - PDF page rendering speed

I would like to know how long (in milliseconds) does it take for the iPad/iPad2 to render a PDF page. Every page and every PDF are different, of course. I am interested in average figures if you have ...