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

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0answers
68 views

Slow SSD to SSD Transfer Speed

My laptop uses a Samsung SSD. A few weeks ago I wanted to transfer a 6.22 GB folder from my internal SSD to an external SSD I own, also from Samsung. I keep the external SSD in a USB 3.0 enclosure, ...
1
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0answers
98 views

Why Computer is so slow after boot?

This situation has happened to me multiple times and I've tried to diagnose the problem unsuccessfully. This has to deal with my work PC. Machine/Software Specs: Windows 7 x64 32GB Ram Core i7 (ivy ...
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1answer
23 views

What factors can affect a disk's seek time?

sorry for the beginner question. I am learning about how fast a disk can do its process (read/write) and move between tracks. One if the factor related to this is disk's seek time. I am curious, in ...
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3answers
87 views

SSD slows in minutes, resets on reboot

I have a Windows 7 Pro HP z200 system with an MTFDBAK256MAG-1G1 (Micron RealSSD C300 240 GB). I notice that the drive's performance is fine when the disk is booted, then during the course of a ...
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0answers
49 views

Is it safe to disable pagefile? [duplicate]

I read on many website that when pagefile is disabled the system gets increasingly unstable and crashes unrecoverably. Is it really unsafe to disable the pagefile? Here is my scenario: I mainly use ...
0
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1answer
151 views

Django's dev server causes permanent high CPU load with Python 3

Django's development server runs under Python 2.7.5 (on Windows 7) with a rather constant (idle) load of about 1-3% on my test system - no page loads or other calculations done. Switching to Python ...
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0answers
32 views

SandForce SF-1200: Is it worth secure-erasing to recover from performance degradation?

I have an OCZ Agility 3, 120 GB in a Windows 8.1 system. The drive is well used and only has a sequential write speed of about 80-90MB/s left. My question is: is it worth going through the trouble ...
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1answer
177 views

Firefox unbelievably laggy on dell laptop

I own a Dell XPS 15 (2014 model), running windows 8.1, where firefox has always been slow and sluggish. I haven't been able to solve the issue through google. One of the problems is that scrolling is ...
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1answer
45 views

Transferring large files spikes CPU and network on source and destination machines

I have two PCs, both running Windows 8.1, and both use a wired network connection. I need to transfer files from machine A to machine B. Machine A is a workhorse: Core I7-4770K 16GB RAM Gigabit LAN ...
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0answers
30 views

why is there 5-50 gig downloaded in my temp file-windows task manager says my cpu usage is always around 90-100% [duplicate]

I have been struggling for over a week now trying to figure out why my computer is running slow when connected to the internet. Windows task manager says my cpu usage is always around 90-100% I have ...
0
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1answer
69 views

windows 7 64bit workstation ,suddenly started being slow and unresponsive

Well the full title should be something like: slow - all applications will take for ever to load. unresponsive at times (pressing `ALT+CTRL+DEL1 sometimes does not bring up the blue screen from ...
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2answers
56 views

Several problems after system restore

I had a problem with a program that I thought I'd be able to solve by doing a system restore. The side effects however were too severe and made me undo the system restore. After the undo, the problems ...
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0answers
37 views

Is it slower when using 3TB hard drives on Windows? [duplicate]

For some reason I have a notion that it's somehow detrimental to the performance of your windows machine (and other OSs?) to use hard drives that are larger than 2TB. When I was thinking about this, I ...
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0answers
44 views

Computer slow after plugged into wrong voltage

So I set up a desktop computer running ubuntu in a classroom that was running through an AVR at 220 volts. I got a report that it wasn't working, so I came to look at it, and sure enough, fans and ...
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0answers
54 views

What types of issues would cause very poor frame rate in games like Minecraft?

I am trying to assist a friend of mine in getting minecraft running on his computer so he can play on my server. I got everything installed and running but there is a serious issue. When he loads up ...
1
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1answer
73 views

Why does a SSD have (a lot) higher mb/s with queue depth 32 then queue depth 1?

So basically in class (during a database course) we had to install and run CrystalDiskMark and analyse the numbers. The only thing I couldn't quite grasp is the fact that my computer (using an SSD) ...
0
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1answer
21 views

Speed up/slow down TilEm on Windows 8?

I have a program named TilEm, which is an emulator for Ti-84 graphing calculators and the like. The main issue that I am having is that there are only two speeds for the emulator: a regular graphing ...
0
votes
1answer
464 views

Google chrome helper using a lot of memory MAC

i find in my activity monitor that i have around 10 google chrome helper processes and most of them use 300-400 mb.On some questions i read, they say to change the plugins from run automatically to ...
3
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2answers
887 views

Slow disk performance in Docker container

Problem I have some extremely slow disk IO within a Docker container. I'm using Boot2Docker, so i'm actually now wondering if the issue is vboxsf? Testing I used this script initially because I was ...
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0answers
79 views

Performance degradation of VM vs real machine

I know there is quite a bit of info about this topic around the web but after spending several hours reading other posts and articles I still don't have a solid understanding. Here is my setup: Quad ...
0
votes
1answer
67 views

Does overclocking have any benefit on a processor that already has Intel Turbo Boost? [closed]

I've read that when the model number of an Intel Core i5 or i7 processor ends in K, it means that it is "unlocked" and can be manually overclocked by the end user. These processors also come with ...
1
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2answers
1k views

Optimal location of pagefile on a system with two SSDs, with system drive faster than secondary drive

Background My laptop has three disk drives, two of which are SSDs. The system drive is a 512 GB Samsung SSD 850 PRO, while the other SSD is a 64 GB Plextor M5M. Needless to say, the M5M is ...
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2answers
239 views

Comparing i7 laptop benchmark to i5 desktop

I'm sorry if this has been asked before. I'm a complete newbie in this field and couldn't understand a lot of the other responses to similar questions. I'm looking to build a computer. It will ...
3
votes
1answer
360 views

Localhost tcp throughput performance differences

I have been using psping for measuring bandwith statistics on localhost on different computers: laptops, home computers and servers. All of them get to between 100 and 200 MB/s but my PowerPc at work ...
0
votes
1answer
81 views

Which bit version of windows 7 would be better from a gaming perspective? Core 2 duo (T6400) + 4GB [closed]

I am re-installing windows 7 on an old HP dv6 laptop. It was running win 7 64 bit, however I figured there might be a slight performance boost if I would downgrade to 32-bit. I have been reading ...
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4answers
155 views

Laptop super slow after few minutes [closed]

My samsung laptop (win 7) goes so slow after a few minutes (also happens right after start up) that a mouse click can take from 5 to 10 minutes. So basically it is frozen beyond recovery. Seems to ...
0
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2answers
513 views

Is green WD too slow (for a normal home computer)? Would it have less than a 10 MB/s read/write speeds? [closed]

There's a very good deal on a 5TB green WD that I intend to catch. However I hear that green WDs might be slower than other drives. I know that the RPM speed for green drives are is mentioned and is ...
1
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2answers
100 views

Does frequency of RAM really matters? [closed]

I have 2 sticks of RAM with frequency 667MHz and 1 stick with frequency 1600Mhz. As a result my all sticks are at 667MHz. How does it affects performance. I mean, we all know how all other components ...
6
votes
2answers
252 views

After plugging in a USB device, Win7 severely slows. What causes this and how could it be fixed?

This is the second PC undergoing this condition, both running Win7. On PC1 a Logitech device was connected through USB before installing it's branded driver (allowing windows to auto-install it), and ...
80
votes
5answers
7k views

Why are my games slower on battery power, even with the power plan set to High Performance?

My laptop is capable of running most games on high settings at decent frame rates. However, if the power cable gets unplugged while I'm playing, the game immediately starts slowing down, even if I'm ...
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0answers
98 views

“Access is denied” to Admin when using Sysinternals Contig to defrag the $LogFile metadata file

I have folders with hundreds of thousands, to over a million files and subfolders in each parent. I'm reading that the NTFS log file may be responsible for slow file creation and other actions. How ...
0
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1answer
20 views

Mercurial commands take more than 20 seconds when run as root-user

when I call any mercurial command (hg init, hg status, hg manifest, hg add, etc) as root user, the commands take more than 20 seconds to complete: # time hg init real 0m25.226s user 0m0.156s ...
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1answer
63 views

Mac mv command very slow

On my mac cp command works 9 times faster then mv. Why it is possible? Mac-Pro-AVM-4:2014-10-22 editor$ time cp /Volumes/AVM4_HD5/INGEST/Final\ Cut\ Original\ Media/2014-10-22/Clip\ \#13.mov ...
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votes
3answers
1k views

Does Server Ram work on a normal computer?

I need some help on choosing RAM for my computer. I have 2GB on my PC, and I am on a 32bit machine so I can only get up to 4GB of RAM. I am trying to find a x2 DDR2 PC2-5300 2GB for my computer, and ...
1
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1answer
66 views

Is my CPU causing bottleneck for the whole system?

I have this old laptop which I have been using for past 2 years. It works well except sometimes when I use programs like Photoshop and Eclipse, it takes a long time load. Also, there are some minor ...
1
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1answer
51 views

Can disk read speed significantly decreased as disk is full?

So I have a 2TB HDD, and it usually takes less than a fraction of a second to get the data I need, after some jobs it gets full, it takes 1-2 seconds to get the data I need. How much does the fullness ...
0
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0answers
30 views

How to throttle performance of a VHD (Virtual Hard Disk )

I'd like to be able to throttle the performance of Reads/Writes on some of my disks. While I know it might be pretty difficult to control that on actual Physical disks, is there any tool which can ...
0
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2answers
147 views

Is disk read/write speed affected by processor architecture? [closed]

I am not sure what effect if any a 32 bit vs 64 bit architecture processor has on disk read/write speed. I believe that a 64 bit processor can address more main memory than 32 bit processor without ...
5
votes
2answers
845 views

Optimal RAM configuration: one large DIMM vs multiple smaller DIMMS?

I have always been told there were performance advantages in using multiple smaller DIMMS vs a single larger DIMM (as the combined bandwidth of all the motherboard's RAM slots would be used). My boss ...
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votes
2answers
66 views

Improve SSD performance on Windows 7 laptop

I got Asus k40in and I've just replaced it's HDD with new 120gb SSD (Kingston v300) to give it a new life as office machine; winsat disk shows ~225 MB/s sequential read and ~195 MB/s sequential write. ...
0
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4answers
87 views

Is too big cache a bad idea? [duplicate]

I am going to pack a new computer for myself and I thought about Xeon series as main processor. Xeons tend to have very big caches even up to 32MB. And here is a question: Is it a big advantage to ...
0
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0answers
22 views

Single user website — performance tuning

I'm a university researcher and I have a private wiki which I use to write down notes. It's on a very resource constrained VM with 512MB of memory running MediaWiki. Since there's only really one ...
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0answers
145 views

Laptop unusually slow after being accidentally dropped. Hard drive was replaced but still slow

My laptop—a Dell 1747 i7 laptop—fell from my desk to the concrete floor of my basement office when my son tripped on its cord. As would expect, that was it for the hard disk. Luckily, though, the ...
0
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1answer
145 views

ATTO benchmark read speed slow below 4MB transfer size on 2-way mirror

I've set up two Toshiba DT01ACA300 HDDs in Windows 8.1 Storage Spaces as a 2-way mirror formatted as a NTFS volume. Benchmarking with ATTO shows this (volume is only a quarter full of data) Click ...
0
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1answer
281 views

High disk usage with windows 8.1

I have a problem that whenever I start playing Call of Duty Advanced Warfare on my PC, it gets really laggy. When I open the task manager, I find that the disk usage is at a 100%, mainly used by the ...
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votes
2answers
76 views

How can I cut off my slow Windows local network without touching the Internet connection? [closed]

I want to cut off my Microsoft local network connection, but not the Internet (http, https) one. Any solution - like the Firewall - is good. By saying this, I suppose there is something (like a port ...
0
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1answer
74 views

Types of low perfomance in videogames

I've experienced two types of bad perfomance in videogames: 1. The basic one, when you have a low frame rate during the game. 2. When the game is fluid in some intervals of time, but it freezes a ...
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2answers
136 views

Disable OSX 10.10 dashboard

I noticed that my dashboard was using 25% of my cpu on osx 10.10 after I upgraded... now I want to disable the thing altogether because I never use it and it is doing two things that I do not like, ...
0
votes
1answer
36 views

Does Processes on Host Machine Affect Virtual Machine?

I use Windows 8.1 as host and Ubuntu 14.04 in VMWare. I am going to run computational simulations in Java. I have two questions: 1. If I run simulations on VM and do other works on host machine, ...
0
votes
1answer
275 views

Impact on SSD when encrypted with BitLocker [duplicate]

I am running Windows 8.1 Pro on a Samsung 830 SSD. I do not have a TPM module so I've made the necessary configuration changes to permit BitLocker encryption of my system drive without a TPM module. ...