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

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0
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1answer
141 views

Understanding the differences between different Intel processors

I'm looking at buying a new laptop PC (my old one is failing). I noticed the latest CPU clock speeds are lower than my current one though the CPUs are newer. It used to be that a higher clock speed ...
0
votes
2answers
216 views

Windows 7 slower than death. Dell Inspiron 17 R 3521 [closed]

I have windows 7 on my Dell Inspiron 17R 3521 The laptop came with Windows 8 as the default software and naturally enough (my opinion) I hated it. So I installed windows 7 dual boot with ubuntu 14.04 ...
0
votes
1answer
410 views

Outlook synchronize feature extremely slow

My Outlook synchronization function takes a very long time (>5 minutes). This delays features to the point of rendering Outlook not useful: New mail not pulled from server Search functionality hangs ...
2
votes
0answers
169 views

MIcro SD card gets slower after partial fullfillment

I have a micro SD card from Kingston - 32GB class 10 When i'm writing on it using usb card reader or my phone, average write speed is about 6MB/s But after about 10GB of data written into it, ...
0
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2answers
704 views

When to use high performance plan and balanced power plan?

I have an SSD, a Samsung Evo 250 GB, and when I configured it with Samsung Magician, this one created a new power plan called Samsung high performance. Until now I've been using this power plan. Now ...
0
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0answers
133 views

Can anyone assist me in determining why my ssds are running so slowly please?

I have an MSI GT 680 Gaming laptop that I use for data analysis work. History: Originally I had a pair of 128GB Kingston Hyper X SSDs in the system in RAID 0. I put these in place (when I bought the ...
0
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0answers
31 views

Windows software raid0 giving bad performance

I have two Samsung SSD's in RAID0 mode. I measured their sequential read/write speeds first in RAID0 Hardware and they give around 1000 mbps but then I used two disks in RAID0 software from within ...
-6
votes
1answer
69 views

Does SSD improve overclocking?

Hi i just had a query in my mind- Do i really need to add SSD to OC ...I mean does it make any difference on the perfomance of the processor ? I would like to overclock my i7 and i have already spend ...
0
votes
1answer
107 views

Extremely slow download speed but reletively good downstream

I am having severe internet issues with no particular cause (that I can find). My average download speed was around 8Mbps on ADSL2+ during peak hours (I live in Australia without NBN) and I was ...
2
votes
1answer
63 views

AMD Processor state hangs at lower frequency

I have a HP Pavillion dv6-6123cl Entertainment PC with a locked bios. I use a program called K10Stat in order to get around this and overclock anyway. I have AMD A6-3400 APU with Radeon(tm) HD ...
0
votes
1answer
55 views

Will Diskpart Clean All reduce HDD lifespan?

I am planning to reinstall Windows on my PC and I just want everything to be as fresh and new like when it is first used. I thought about doing a Clean All on my hard disk, but I have one question: ...
0
votes
3answers
137 views

Slow Hard Drive

My WD Elements 1TB hard drive has suddenly became very slow, I cant copy from it or watch anything from it without it playing and pausing the whole time. It is not full there is still over 200gigs ...
0
votes
1answer
76 views

How can I find the amount of floating point operations for each Mhz for processor X?

I've decided to buy a certain processor (laptop Intel-Core-i7-4790K 4Ghz-4.4Ghz turbo), but it pains me that I can't tell how many GigaFLOPS(GFLOPS) the processor actually has. I also can't find how ...
0
votes
1answer
39 views

Something about SSD

So, I read that a SSD requires ACHI for Communication. I checked my BIOS for that, and luckily I have it. My Question is that, suppose, if I buy a SSD that consists of 70 GB. And, suppose if I put ...
0
votes
3answers
448 views

Installing software on Windows 7 very slow

Since a few days, any software installation on my Windows 7 computer is very slow. This is on a Windows 7 64bit setup of just a few weeks old (new computer). I've waited for over an hour for ...
0
votes
0answers
13 views

email notification computer ram higher 80%

Is there a way to email myself if a computer running window's Ram is 80% > ?I see there is performance monitor. I figured out how to use counters but I really want to make this SIMPLE to the above ...
0
votes
1answer
25 views

Why first-time reading file from hdd is slower then next ones?

I am measuring my HDD speed with a self-written program. (This is a sort of homework, so I don't need recommendations about existing tools to do that). I do it with the following piece of code: ...
0
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0answers
73 views

MacBook Air, Mavericks: 2.9GB of RAM is used at startup

Running: MacBook Air Late 2010, 13 in, 4gb RAM. Only 8gb free on SSD Immediately after booting, I opened activity monitor and this is what I saw: About 2.9GB of RAM already used up, and a list of ...
1
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2answers
237 views

WD Black 2.5 sata drive slow on windows 8. Sector size is 4k. What gives? 40MBps write

WD Black 2.5 sata drive slow on windows 8. Sector size is 4k. What gives? 40MBps write. This is a brand new WD black scorpion 500gb drive, on a brand new Zotac Zbox Nano CI320, quad core with 4gb of ...
0
votes
0answers
33 views

Powerful PC struggles during normal use

I recently bought a PC with the following specs: MOBO: ASRock Z97M Pro4 Chip: Intel i5 4670k RAM: 16 GB RAM 1600MHz Storage: SSD Samsung 840 EVO 250GB to boot the OS and 1TB HDD 7200rpm for data ...
0
votes
0answers
85 views

PCI-Express RAID Controllers with TRIM Support

I've an AMD Athlon computer with Windows 7 and I'd like to set up an SSD Raid 0. Are there any PCIe RAID controllers with TRIM support available on the market? The only thing in this are that I've ...
0
votes
0answers
15 views

Which is faster: less RAM in dual channel mode, or a greater amount of RAM? [duplicate]

So I'm thinking of upgrading the RAM on my computer: currently I have two RAM chips, one 1 GB and one 4 GB. I'm debating on what's the best way to do the upgrade to get the best performance. Here's ...
0
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0answers
62 views

Very poor connectivity and poor performance on high end specs

I recently got a new laptop which has very good specs, it's basically a direct upgrade from my previous laptop - a GTX860M, quad core i7 2.5GHz and 16 GB ram. My old laptop ran Minecraft at 60+ FPS ...
-6
votes
2answers
67 views

Extremely slow computer [closed]

I'm using Windows 7 Ultimate 64 bit. It takes forever to boot up my computer and it is full of lag. It takes about a whole minute in the loading windows 7 screen, and after logging in (entering ...
0
votes
0answers
73 views

How to find out what causes Driver locked

My computer is running slow, so I decided to use RAMMap. I've found out that "Driver locked" has allocated about 10 GB of RAM. I've searched the internet, and found out that programs like VMWare, ...
0
votes
1answer
523 views

4 SSDs RAID 0 integreted vs dedicated controller

I've been thinking about setting up 4 SSD RAID 0 to gain performance in my home PC, and I ran into this review of PCI-E based SSD. If I use PERC H310 (8 lane PCI-E 2.0 RAID controller, which means ...
0
votes
1answer
738 views

Very slow computer but low CPU or Memory usage

My computer is very slow. All the programs and Windows itself is slow. But strangely, all the games run without lag. They are not affected somehow. I just reinstalled my computer for the 6th time ...
53
votes
11answers
9k views

Should I disable swap file if I have lots of RAM or should I move it to a virtual RAM drive?

Imagine I have tons of RAM. Let's say 64GB. That's a lot for even gaming PCs. Now the default location of a pagefile in Windows is on the main OS drive, be it HDD or SSD, which are faster in general, ...
1
vote
1answer
28 views

Open programs take forever to reload after another program used-up all the memory

I have the following phenomena: I have 4GB RAM, and sometimes I use a program (program A) which uses up all the available memory, say 3.9GB. If there are more open programs, then their memory is ...
0
votes
0answers
309 views

Extremely slow download speed, could my modem be causing it?

First off all I want to thank everyone who is reading this. This will be a long problem so I really hope someone has an answer, as my ISP doesn't. For over a month we have been experiencing ...
0
votes
1answer
24 views

iptables - I'm losing control over the box by adding new rule to the config

My set up is the following: Internet uplink (200Mbit) DMZ (1GB ethernet) Internal network (1gb internet) Log interface My gateway is serving around 600 clients with 1400 iptables rules in ...
0
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0answers
12 views

How to implement conditional sum in a smart way?

I want to implement a sum over three variable l,m,n such that l,m,n are integers that are greater or equal zero and l+m+n is equal to some integer v. As I have quite a few of these sums in my ...
1
vote
0answers
29 views

Is there a way to “undercommit” memory in Linux (VPS burst memory woes)?

I've been noticing occasional drastic performance hiccups in my application hosted on a VPS. My VPS plan has 1GB guaranteed RAM and 1GB "burst" RAM. Occasionally the app will become extremely ...
0
votes
1answer
79 views

Troubleshooting slow log on of a computer? [closed]

What tools would you utilize to troubleshoot a slow logon of a computer? How and why? Thanks in advance
0
votes
4answers
2k views

Low disk performance with Windows 8.1

I have a Dell XPS 15 (L502X) that have a Core i5-2450M, 6GB RAM and a 1TB WD 5400RPM HDD. This notebook Achilles' heel is the disk. It's slow and I understand that if I do stress it to much, it lends ...
0
votes
2answers
132 views

Intel 10Gbps card bandwidth

I have an Intel 10Gbps card that has the 82599 10GbE Controller. The card has two ports in it. The datasheet of the controller says it supports PCIe 2.0 (2.5 GT/s or 5.0 GT/s) Now, according to PCIe ...
0
votes
1answer
331 views

Difference between Instruction, operations and micro-operation (uop) [closed]

I am trying to understand the intricate terms related to performance of processors. Computer performance is measured in FLOPS, which is short for FLOPs per Second. FLOPs itself stands for ...
0
votes
2answers
63 views

Is it bad for a CPU to be running at a high speed for extended periods of time?

I have an Intel Core i7-4770S (3.10 GHz) that can go up to 3.9 GHz in turbo mode. Windows Task Manager can report it going up to about 3.5 GHz when playing certain games and probably goes higher every ...
0
votes
1answer
53 views

I can copy a file from my NAS but not watch it

I have a cheap embedded linux NAS (a Seagate Central.) The device is certainly underpowered, but it's not entirely useless. One thing that bugs me is that I can reliably copy a 300MB AVI file to my ...
0
votes
0answers
137 views

Graphics stuttering in 3D Games

Every time I play a game, I experience random stuttering of video and the FPS counter very briefly goes down to 0. This stuttering can be seen in this YouTube video, with the most obvious stuttering ...
1
vote
0answers
64 views

Windows internet sharing uses 50% of my CPU

I discovered that svhost.exe process is using almost 50% of my CPU time when computer was almost idle - I was downloading big file with USB 3G modem with 80kB/s speed. I have relatively fast CPU ...
0
votes
2answers
73 views

fastest RAM configuration [closed]

I am planning to buy a workstation for doing heavy image processing parallel computation (for 3-dimensional electron microscopy) under linux. It will have 64 cores (4 AMD opterons of 16 cores each). ...
1
vote
1answer
150 views

Virtualbox Mac OSX host - Ubuntu guest is slow and laggy

I did some research already as to why my Ubuntu guest is slow on my (quite powerful) MBP but no success. Is there something I am missing? A setting? A configuration? FYI I am usin g: ICH9 chipset ...
1
vote
1answer
439 views

SSD Performance showing as 'bad'

Today I stripped down and rebuilt my PC (to get rid of surplus cabling, and to give it a clean since it was pretty dusty in there), and everything is running fine. Well, except my SSD (apparently). ...
0
votes
0answers
65 views

Linux, vim and ssh: why is vsplit slow?

As soon as I have more than one file visible with a vertical split (= :vsplit) the moves and screen refresh become sluggy. I've noticed that on many different Linux systems (old and my very recent ...
-1
votes
2answers
67 views

Why is my computer slower now than it was when I bought it after a clean installation? [closed]

I've just reformatted my home PC. It's an i7-920, 16GB RAM machine (so it was pretty good back in the day). I've installed a clean installation of Windows 7 and I'm wondering why the PC is much ...
0
votes
0answers
187 views

Computer became slow recently

System Specs: Windows 8.1 64-bit Intel Core i7-4700MQ CPU @ 2.40GHz, 8.0GB RAM, Intel HD Graphics 4600 / NVIDIA Geforce 750M GT Computer has been recently slow. This includes startup ...
3
votes
2answers
600 views

What are the differences between “scientific GPUs” and “gaming GPUs”?

I am currently working with neural nets and I recently made my code much faster by configuring a framework correctly to make use of a GPU. The GPU that is used is a Tesla C2075, which is part of the ...
0
votes
0answers
16 views

My System speed seems slower than the components would predict

I run an Intel 4770k CPU overclocked to 4.6 GHz, 32 GB G-Skills DDR RAM, primary boot drive Samsung 840 SSD, 10 TB auxiliary drives, 3 GB Radeon video, 1000 W PSU, Zalman GS 1200 case with Windows 8 ...
0
votes
0answers
42 views

How can I improve the performance of my audio software?

I am running OtsAV on Windows XP. The way it works is by buffering a small amount of data from the hard drive just before it needs to play it. It used to give flawless sound no matter what else was ...