For questions concerning computer, or computer-related, performance. Please include metrics in your questions.

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2 views

Will IIS8.5 do a better job for WebDAV data sharing than Apache in terms of performance and file locking?

Right now I am using Synology's built-in WebDAV function, which I think is based on Apache server. The issue i am having are basically slow transferring speed and missing file locking ability. The ...
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0answers
14 views

What do you upgrade to make games load faster? [on hold]

Let's say you have a relatively modern game like Shogun 2. The loading screens take several minutes. This bothers you and you'd like to improve it. What is actually going on when loading screens are ...
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1answer
18 views

Need help diagnosing my machine

I have something that just slows my computer to a crawl sometimes. Not running anything big. Yesterday all I had running (besides background apps) were Firefox & Windows Explorer and could barely ...
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1answer
28 views

How can I identify what is slowing down my mac when nothing is eating up CPU?

Sometimes I'll have characters appearing slowly on screen, an unwelcome beach ball or pages like google images will freeze while scrolling. When this happens often all seems calm in activity monitor, ...
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3answers
38 views

Lenovo Y50 laptop does not perform well when Discharging

I just bought this laptop (Lenovo Ideapad Y50). I'm playing games such as Battlefield 4 (upto date DLC) and WatchDogs. Even though I set battery manger to High Performance mode game doesnt works well ...
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1answer
13 views

Laptop hot, CPU intensice

Laptop has been at around 70 degrees C for a while while idle compared to regular of around 50 (60 under load). Load average is 3 compared to past of 1.2 to 1.5. cat /proc/cpuinfo |grep MHz returns ...
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0answers
16 views

Excel consuming absurd amount of memmory

I have a excel file consuming a huge amount of memmory, something ~500mb. The file contains only one sheet, no images or scripts and its size is only 719kb. I have checked all suggested solutions ...
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2answers
24 views

Computer took much longer than normal to boot, and now windows open and close slow

I've got a Sager laptop, a GeForce GTX 680M, an i7, 32GB of RAM, and I'm running Windows 7. My computer recently began to make that sound Windows makes when you plug in or unplug something (The da duh ...
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0answers
14 views

Some applications slow on network (win 8.1), where to start?

I recently got a new computer with windows 8.1. I identified at least two applications are very slow when the are using the network. This is the MS dynamics AX client (very slow all the time) and ...
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0answers
13 views

poor write performance with RAID 5 array

I have an Intel RS2WC080 RAID controller card connected to an array of 8 WD Black 4TB SATA3 drives, in a RAID5 configuration. While the read speed is ~750MB/s the write speed hovers around 45MB/s. I ...
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0answers
18 views

Xcode keeps showing the beachball when I select something

When I select something in the xcode editor and then try to select some other text, the spinning beachball comes up and i have to wait for a couple of seconds before i can continue working. I have the ...
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1answer
17 views

How to identify hardware performance bottleneck in laptop?

Is there any tool that helps to determine the weakest link of my current laptop hardware specification? Any online guide to help me choose nice balanced configuration for the new laptop? I need to ...
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0answers
6 views

How do I ask for clarification on an existing answer if I am very new? [migrated]

Request Please do not close the question before you read it in full My PC became very slow while booting and I wanted to know why? I google and find this interesting answer How to diagnose slow ...
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0answers
22 views

Windows 8 notebook, 100% disk activity

I don't know what is happening, i have spikes in which the disk activiy goes up to 100% for 10 secs, once every minute or so. During those events I cannot see any process writing or reading from disk ...
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0answers
16 views

GIMP slows down my Ubuntu 14.04 over time

I have some problems with my GIMP recently. When I start GIMP it runs perfectly fine, but over time, say about 15 minutes, it's starting to slow down my Ubuntu (14.04). After checking my system ...
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1answer
39 views

Choosing PC components for high performance calculations

What is the best practice to choose the components of the PC targeted at some "heavy" calculations? In particular, one might expect some compilers to be optimized for some CPUs better than anothers; ...
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1answer
16 views

How do I optimize eSATA performance in Linux?

I experience very slow eSATA performance. Around 5 mb/s on a disk that easily handles 150-200 mb/s. Do I need to enable some setting or module in order to speed it up? The disk is a 4 TB disk and the ...
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0answers
6 views

mksquashfs performance depends on CPU load?

I'm trying to realize is mksquashfs performance depends on CPU load? While I'm compress the same data, i'm always get different by md5sum archives. Is this persist in compression size of archive? ...
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1answer
19 views

Cores and threads - Performance

I wonder if a 4 core/8 thread cpu will perform better than a 4 core/4 thread cpu. If the answer is yes; How much better will a 4/8 perform? EDIT: What if its for running 4 single threaded apps? And ...
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0answers
34 views

Switching between integrated and discrete graphics on alienware 14?

I recently received a new alienware 14 in the mail and was having some issues switching between integrated and discrete graphics. When I used the inbuilt benchmark tests in Just Cause 2 i pulled in a ...
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1answer
30 views

Which factors to consider when upgrading Processor only? [closed]

I currently own an Optiplex 755 which has an E6550 Intel® Core™2 Duo Processor E6550 (4M Cache, 2.33 GHz, 1333 MHz FSB. It has 8GB of DDR2 RAM, PC2-5300 (333Mhz) I'm looking for processor on the ...
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1answer
18 views

Picking the right ram [duplicate]

I informed myself of picking the right ram, but there are still questions. I am currently running a AMD Phenom II x4 965 (Black Edition) on an ASUS M4A87TD EVO. I'm planning to switch my core as soon ...
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1answer
64 views

Computer slows down during downloads

Last week, I reinstalled my company laptop, a HP Pavilion dv7-6b22ed. Everything was installed okay, but there is one issue I can't solve: whenever I download a file, be it a several hunderd MB file ...
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5answers
251 views

How do I speed up my PC or what should I replace?

I have the following config: Core 2 Duo E7400 @ 2.8 GHz 1 GB DDR RAM 667 MHz 250 GB HDD @ 5400 RPM Intel DG31PR Motherboard- This is an April 2009 Computer and running Windows 7 32 bit. The ...
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0answers
9 views

Should I connect my 2nd monitor to integrated or discrete graphics to maximize 3D performance on the 1st monitor?

I have 2 monitors connected to my PC, and the secondary monitor is used for things that don't really need the power of a discrete GPU. I want to maximize the performance of 3D applications on my ...
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0answers
18 views

Clock vs Cache in Gaming

I'm curious, I have two processors laying around that I won't name due to the rules of this site, however, one of them is Quad-Core, with a 12MB L2 cache and a clock speed of 2.67GHz. The other is ...
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1answer
29 views

CPU usage drops dramatically

I am using an engineering software to conduct series of computationally demanding analyses. I have a relatively powerful desktop with the following specs: CPU: Intel core i7 3930k @ 3.2GHz RAM: 64 GB ...
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0answers
4 views

Analyse performance / profile Android System? Why is the system slow? [migrated]

My Android 4.2.1 tablet is slow, it wasn’t when purchased. As the reason is often the software, I was looking for a tool to analyse the performance of the whole system, but couldn’t find any. What I ...
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0answers
20 views

Linux MD software raid stripe cache size

From what I can piece together the /sys/block/md0/md/stripe_cache_size is for raid5 and 6 set at a very low default value to avoid starving machines for memory. By increasing this value you can get a ...
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0answers
25 views

Linux Virtual Machine on VirtualBox suddenly running slow

I am running a VM using Virtual Box (version 4.2.26, but had same issue with v4.3.14) The VM was created using Vagrant. It runs headless, it just serves up websites and I use "vagrant ssh" to get to ...
3
votes
1answer
66 views

Adobe photoshop “not enough ram” message opening a 60 MB TIFF file

I am working with Windows 7 x64 on a full HD monitor, Intel i5-2500K and 8 GB RAM, currently available 5,5GB. I tried to extend photoshop's memory usage and scratch disk settings as following: But ...
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0answers
17 views

Windows 7 - Acer Aspire M5811

I have a problem with my Windows 7 Desktop PC. Today I used it normally and it turned off normally to, but the next time I tried to turn it on, it became extremely slow. It's normal until I need to ...
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2answers
43 views

Slow vmware vm with fast brand new laptop

I've just bought a fast core i7 laptop with 16GB of RAM running Windows 8.1. When I run a VMware VM on this computer, the VM is extremely slow. And if I look at the host HD activity during this time, ...
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0answers
15 views

Why is the Windows 7/8 translucent selection so laggy?

In Windows 7 (and 8), the translucent selection rectangle is getting slower, 'laggier' as the selection area gets larger. For example, creating a selection area of roughly 1500 x 1000 pixels on the ...
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0answers
33 views

Computer slow when there is over 8GB RAM

My motherboard is a Sapphire pure black X58, with 6 ram slots ( tri-channel ) and 3x 2GB G.Skill PC12800 PI series on them, and when I received for free 6x 2BG G.skill PC12800 NQ series I wanted to ...
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0answers
24 views

Slow startup due to event log

My computer takes roughly 10-15 minutes to startup. I found that if I disable Windows Event Log in msconfig that startup is normal again. This is on windows 7. I am guessing that the event log is ...
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2answers
35 views

How to get a “picture” of the computer cpu/disk activity while in a fullscreen application

I have a small issue on my computer. From time to time, it seems like some process is turning on, maxing the cpu and disk activity for 10-15 seconds, and then stopping. This usually occurs while I'm ...
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0answers
11 views

About Connection Speed

I have this problem for months and I couldn't solve this. It's really weird problem for me. I have a cable modem NetMaster and additionally TP-Link Router (to extend wireless area). There are three ...
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2answers
51 views

slow transfer of data from disk to disk

I'm copying about 4TB of data from one hdd to another and noticing abysmal speeds. I have two external SATA 3 hdds plugged into USB 3.0 docks and connected to USB3.0 ports on Macbook Pro. MBP was ...
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2answers
19 views

How to automatically store DNS entries locally after first visit, for for privacy and speed reasons? [duplicate]

My set of websites that I visit regularly is not very large. In order to increase privacy, I'd like to visit these sites directly without the need of a remote DNS resolve each time I visit it, but I ...
0
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1answer
84 views

Centos running very slow in Virtualbox

I am running Centos 7 in Virtualbox 4.3.14. The VM is configured with 2 CPUs 4 GB RAM 3.10.0-123.4.4.el7.x86_64 kernel The host machine is running Windows 7 Pro SP1 64-bit Intel i7-4790 CPU, ...
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3answers
116 views

Network speeds degrade with time

I bought an Asrock AM1B-ITX motherboard. It is working great, except for the wired download speed. When the machine boots up, it is close to the maximum the ISP provides me, but within a few hours it ...
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0answers
26 views

How to force the Linux kernel reclaiming cache memory rather than using swap?

I have a PostgreSQL-driven web service on two Debian servers, one a vhost running Linux kernel 3.2.0-2 with 2GB RAM and the other a dedicated server running Linux kernel 2.6.26-1 with 6 GB RAM. ...
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0answers
34 views

Windows 8: disk usage is always at 100%

I have noticed recently that my laptop runs slowly. Reason is (as I think) that disk usage is at 100% most of the time. It's also true even when running relatively disk-independent apps. What did I ...
0
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1answer
41 views

The more I use my computer the less it lasts?

I would like to know your opition about the relation between the following 2 variables and 2 outcome measures. The variables are: Time a computer/laptop is on, carrying normal tasks/processes (word ...
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0answers
42 views

Poor performance with Ethernet Network Card when transferring files

I am having a performance issue I have not been able to solve and hope you guys can help me with it. I bought a NanoPC (small computer with ARM processor) and I have it running Ubuntu 13.10. It has a ...
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0answers
25 views

Error on ubuntu server testing - “fio: first direct IO errored.”

I'm working on a VM to test caching algorithms. The tool I've chosen to push IO is fio (click for HOWTO) given its flexibility. What I don't understand is why running on this ubuntu server 14.04 image ...
52
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2answers
4k views

Why did adding memory significantly increase gaming performance on an AMD APU?

To be clear from the beginning, this is not a problem. This is just something that I really want to know the secret behind. System specifications CPU: AMD A10-6790K 4.0 GHz GPU: AMD ...
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votes
1answer
94 views

Why does my computer run slow if it is not using most of its CPU or RAM? [closed]

I have two machines - a relatively cheap laptop and a high end desktop. My laptop sometimes runs slowly doing various tasks that would be quick on my desktop. My first guess is that I'm using most of ...
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0answers
34 views

USB mouse incredibly slow on brand new laptop

Just purchased a Dell Latitude E6540 with a ~16" screen (Windows 7). The mouse is terribly slow, even after adjusting it in Mouse Properties (Pointer Options -> Motion -> Fastest). To move the mouse ...