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

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2
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0answers
28 views

Is it better to have 2x2GB Dual-Channel vs 4GB Single-channel RAM, performance-wise? [duplicate]

I know this has been discussed many times before but so far I’ve only found speculations and some blurry “experiences“ on this… Many just mix single and dual channel memory, or don't care about ...
0
votes
1answer
141 views

Distorted audio, lagging mouse, slow speed, no internet

So when I turn on my computer now the windows booting sound is all distorted almost like it's stretched or crackling, when I log in the mouse lags, and everything seems to load a bit longer. It can ...
0
votes
2answers
53 views

Debian server is very slow in spite of low CPU, RAM na SWP usage

From 3 days I experience problems with my debian server. When I stream media with samba transfer is about 20kb/s when it used to about 6 mb/s. Its my home server so its not internet issue. When I ssh ...
0
votes
0answers
109 views

How to fix slow Windows 7 on almost-full hard drive partition?

I'm using Windows 7 64-bit and Ubuntu 12 as multi-boot on an HP Pavilion DV4 2101tu. My hard disk partitions are almost filled. (It shows with red color in Windows.) Sometimes the whole system is ...
0
votes
1answer
51 views

serious disk performance problems, please help,

I have a Dell inspiron 7720 processor intelr core tm i7 3630qm 8 gm ram the problem is that me disk is always between 49% - 50%, then I noticed my disk had some "partitions" named as disk 0c: and ...
0
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0answers
81 views

Process Hacker - What's the difference between Disk and I/O?

As a sysadmin often having to deal with Windows systems with issues- be it servers with performance issues, or desktops with malware- I often spend a lot of time staring at he two different graphs in ...
0
votes
0answers
104 views

How do I make HDParm or equivalent settings persist in Windows?

I have a laptop with a harddrive that spins down so aggressively (after ~10s of inactivity) that it causes performance problems in games and various other apps that have frequent but spread out drive ...
0
votes
1answer
68 views

Combining two graphics cards - performance

I want to buy a new notebook, and to be honest I want it to run all modern games with as high details as possible. Recently I came across a notebook that had in its graphics card section written: ...
0
votes
1answer
21 views

OSX performance of near-full drive

OSX performance degrades terribly when writing to an HFS+ partition which is over about 96% full. It seems that every write request triggers some sort of process which takes about 10 seconds, during ...
0
votes
1answer
160 views

Printer “Windows Update” - Why always so slow?

In every version of Windows I've tested, when you click the "Update Windows" button, before adding a printer, it is always so slow to complete updating. Even if you have top-notch hardware and a super ...
5
votes
1answer
769 views

My SSD has extremely slow write speed. Any ideas what could be the issue?

Last year I put together a new PC with a PNY XLR8 SSD (http://www.pny.com/XLR8_SSD?sku=SSD9SC240GMDA-RB) Things have been great up until recently when I started noticing that network copies of large ...
0
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0answers
36 views

Wordpress extremely slow in VPS

Recently a client buy a "unmanaged" VPS at 1&1 and since a few days the site running on it, which is a Wordpress, is extremely slow and I can't find what the cause is meaning if it's at software ...
1
vote
1answer
283 views

Win7 System Process (PID 4) constantly accessing drive

My hard disk drive is constantly, incessantly active so long as my computer is on. Mostly this doesn't seem to affect performance- startup only takes a minute or two before the computer is usable- but ...
1
vote
2answers
85 views

What factors determine the maximum amount of ram a device can address?

I recently bought a new ultrabook that came with 4GB of ram. I have seen people talk about how it can be upgraded to 8GB with no trouble. However when I look up the CPU that is inside of the machine ...
0
votes
2answers
90 views

Does larger disk allocation unit size in HDD makes file searching faster?

Does choosing a larger unit size make it perform faster when it comes to searching files in the disk drive or even writing/reading files? Larger allocation unit means the hard disk needle needs less ...
1
vote
1answer
219 views

High CPU core usage from System Interrupts [duplicate]

The CPU usage on my AMD Phenom II X4 820 hasn't gone below 25% in days, and I realized that it’s because my 4th core is constantly at 100% load. I have spent quite a while trying to figure out why, ...
3
votes
1answer
156 views

Bad msbuild performance on Surface Pro 3

I've recently bought a Surface Pro 3 (Win 8.1, Core i7, 256GB Samsung SSD), mainly for .NET development and am disappointed at the performance. As an example, performing a full rebuild of a ...
1
vote
2answers
49 views

FTPS performance with small XML files but very high volume

Our company is building a b2b integration with another party that requires them to deliver to us a large number ~100,000 XML files about 10-15 KB each over the course of a three hour window everyday. ...
1
vote
2answers
369 views

windows 7 becomes unberable slow, what could I do? [duplicate]

I'm using windows 7 professional edition, 32 bits. At the beginning it's quite OK, but not it becomes unbearably slow: it takes around 31 minutes to start up! After I typed in the windows id and ...
3
votes
2answers
55 views

Thunderbird email from specific user is causing performance issues

In our office we are using Thunderbird. One user in particular, when using Thunderbird, has issues with sending and receiving emails. Whenever he sends an email, it takes 3 times as long to connect ...
0
votes
0answers
66 views

Dropbox download speeds are terrible

OS: OSX 10.10.2 Router: Cisco RV320, updated AP: Ubiquiti Unifi AP-PRO Swiches: HP Procurve managed I have gigabit internet, both up and down, and my speeds generally do not dip below 800mbit. The ...
0
votes
0answers
34 views

OS on SSD, Win 8 “libraries” on HDD, access optimisations/cache?

I have Windows 8 with OS/Programs on my SSD, A lot of data on my HDD ... Available space for some data on my SSD (My SSD being 250GB, I can reasonably afford 100GB for data) Now I would like to ...
0
votes
1answer
122 views

Virtualbox - Windows 7 x64 slow loading

after moving *.vdi files to my new notebook I noticed that it takes long time to boot WIndows 7 x64(on 2 different VM's) on Windows 8.1 x64. That VM's worked perfectly on my home PC on Windows 7 X64 ...
0
votes
1answer
108 views

Clock speed vs. number of cores for parallelized computer simulation [duplicate]

My question is similar to some "speed vs. cores"-questions that have already been asked on this website. However, I am interested in some very specific and technical points. So I hope that my question ...
1
vote
4answers
8k views

Why is the Core i5 5300u rated better than the i7 5600u?

I just purchased a new x1 Carbon with all the bells and whistles. I got a Core i7-5600u which I really thought would be the better chipset to get. But now I'm looking at some benchmarks and the ...
0
votes
0answers
11 views

Internet gets very slow when I open dc++ for a while

If I do continuously downloading anything in linuxdcpp it gets slower and slower.(dc++ itself and the internet in general). It gets that bad, if I wanna open any website it is loading and loading till ...
1
vote
1answer
61 views

AMD processor families and models

I want to use hardware performance monitors on my AMD Opteron 6376 processor. Unfortunately, AMD has many manuals and I can't figure out which one I need from this (partial) list: ...
1
vote
0answers
56 views

PHP - MSSQL configurations cause slow performance [closed]

I have a problem in my project using PHP and MSSQL. I have the following configurations: 64 GB Ram 16 CPU Intel Xeon SQL Server 16 GB Ram 4 CPU Intel Xeon Web Server And I have the following code: ...
2
votes
3answers
176 views

Hard disks: random vs sequencial access times for all uses

The general question: if I run all sorts of tasks on the PC, should I get an HDD with higher random or sequential data rates? More specifically: I'm using an 80GB HDD to host the operating systems ...
0
votes
2answers
45 views

Would it make any sense or can I see any performance upgrade if I change my RAM from 4 to 8 GB, in the presence of SSD hardrive? [closed]

I have a laptop with Win64 bit system with intel i3 processor on a Sandy bridge platform. I have recently replaced my hard drive with a SSD. Now I am also thinking to upgrade my RAM from 4 to 8 GB, ...
0
votes
1answer
70 views

Any benefits of VT-x for 32bit guest?

I am going to be deploying a network of 32bit guest systems. I will be running one core per VM (but multiple VMs per host), memory usage is low (<512MB per guest). Is there any benefit (or even ...
0
votes
2answers
89 views

Speed up ubuntu on desktop by moving some directories to a faster storage

I want to speed up my ubuntu install a bit. I was using a RAID1 setup for the whole system (separate md for /home and /). Now (thanks to ...
0
votes
1answer
227 views

Why does my browser cache fill up so fast? [closed]

So on my second desktop there seems to be a problem with the browser cache. To clear up the cache i'm using this program called ccleaner. Helps me alot keeping everything clean. Recently the browser ...
1
vote
1answer
36 views

how could I figure out RAM consumption of services? [duplicate]

I'm using Windows 7 SP1. Recently I feel it runs slower and slower. The applications do not consume much RAM, so I guess some services do. How can I see the memory consumption by each service?
1
vote
1answer
104 views

Will a large block size affect speed noticeably? [closed]

I've seen discussions about it being fine to have a large block size on drives where large files will be stored because not much space will be wasted. But will it also help to speed up reading? I'm ...
0
votes
0answers
1k views

Mixing 4GB 1Rx8 PC3L RAM with 2GB 2Rx8 PC3 RAM in samsung RC510

I have Samsung Laptop RC510 with 4GB RAM (2x 2G 2Rx8 PC3). Latelly I wanted to change one of the 2GB for 4GB so i get 6GB RAM in total I got 4GB 1Rx8 PC3L RAM Stick but when I put it in my Laptop it ...
0
votes
0answers
77 views

System very slow, benchmarks and tests give different results

I have a Dell Latitude E5540 system (i5-4300U CPU, 4GB RAM, Intel HD graphics; less than a year old) which has been running very slowly recently (as in: waiting for minutes to open Word document/web ...
0
votes
0answers
243 views

Why is cURL slower than wget

Test page: https://www.beobank.be/nl/Home.aspx This is the result using wget (or a real browser): # time wget https://www.beobank.be/nl/Home.aspx -O /dev/null --2015-01-26 12:05:46-- ...
0
votes
3answers
92 views

Poor performance with large .txt

Is there an inherent bug in the design of .txt that signficant performance drops can be experienced when working with relatively large files? Working with a file of over a million characters on ...
0
votes
0answers
95 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
vote
0answers
189 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 ...
1
vote
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 ...
1
vote
3answers
90 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 ...
0
votes
0answers
52 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
votes
1answer
207 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 ...
0
votes
0answers
36 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 ...
0
votes
1answer
305 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 ...
1
vote
1answer
56 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 ...
0
votes
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
votes
1answer
82 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 ...