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

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1
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1answer
2k views

USB mouse pointer lags when external HD is plugged in

So I just discovered the cause of my mouse's "random" lagging. I have a Microsoft 3500 USB mouse and a Seagate FreeAgent GoFlex 500 GB external hard drive. When the former is plugged in, everything is ...
0
votes
3answers
113 views

I recently upgraded to 16GB, now my computer is slower. What can I do?

I've recently upgraded my RAM to 16GB (4GB before the change), and I've noticed my computer runs slower than before. After the change, gaming reached higher FPS than ever and surfing the web was no ...
0
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0answers
4 views

Handling exported reports from BI portal in Excel 2010 causing performance issues?

So, I'm going to try to describe this the best I can. Multiple uses at my office will often export large reports from the BI system of the SAP web portal. These files can be as large as 25-50mb, ...
0
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1answer
24 views

How to Match Memory to FSB (pre IMC)

I have the following hardware: P35-DS3L supporting FSB 333/266/200 Mhz, quad-pumped. Four dual-channel slots. E2180 currently @ 2.00Ghz (200.00x10) I plan to raise the FSB to 266.66. This is my ...
8
votes
8answers
2k views

Is there any way to make Mac OS X Spotlight only index the file names and not the contents?

I do understand that the point of Spotlight is to look inside files, but it also returns file name matches, and that's what I need most of the time. Besides, Spotlight is running so absurdly slow on ...
2
votes
1answer
33 views

Does CPU matters in disk read/write speed

I thinking to buy my old Mac an SSD, but after asking around to some friends, and looking to different disks, some of my friends said that the SSD's read/write speed won't matter because my CPU won't ...
0
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2answers
3k views

Memory Runs at Flex Memory Mode

I had 4 GB RAM installed, running in dual channel mode. RAM: Corsair TWIN2X4096-6400C5DHX (CM2X2048-6400C5DHX) Motherboard: Gigabyte GA-EP45-UD3R Channel 0: DIMM1, DIMM2 Channel 1: DIMM3, DIMM4 ...
0
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0answers
21 views

Computer slowed down - no virus/fragmentation issues I can see

OK, here's an obvious question which typically gets the "fragmented drive and/or virus and/or too many programs running" answer. The thing is, I'm not a dummy (I'm a software engineer, although not ...
0
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2answers
31 views

Determine bottleneck for the Wi-Fi speed and match the Ethernet speed

The speed on my Wi-Fi is substantially less than the speed on the Ethernet. Through mtr, I don't see any substantial packet loss between the laptop to the router. I want to be able to diagnose the ...
-3
votes
1answer
82 views

Windows system CPU usage stays at 100%

I use Windows 7, system has been working fine except that lately its has become relatively slow. I opened tasked manager and noticed the CPU usage stays on 100% even when the only opened application ...
0
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3answers
60 views

NAS via HDD connected to PC or HDD connected to the router

Hardware I am working with Netgear Nighthawk AC1900 (R7000) (USB 3.0; running stock firmware, but can run Tomato if needed) Seagate FreeAgent GoFlex Desk 2 TB USB 3.0 External Hard Drive (MPN: ...
1
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1answer
31 views

Why do my external USB hard drives become slower when I have filled them up only to a third?

The read/write speeds of my external USB3 hard drives (*) are significantly higher when the disks are empty (no normal files; less then 10MB used) compared to when they are moderately full (2.5 ...
12
votes
15answers
38k views

Why does Adobe Acrobat scroll so slowly, and what can I do about it?

I often am forced to view long PDF documents either in browser or out of browser. When I'm forced to use such documents, it's always frustrating, because whenever I scroll the document, the viewer ...
11
votes
4answers
23k views

Does overheating cause a computer to slow down?

I've heard that heat issues can cause problems with PCs, but is this realistic? Is leaving the desktop in a cabinet area, or above-average-room-temp, a realistic potential cause of slowdowns? (I'm ...
-1
votes
1answer
46 views

How can a computer have good or bad days? [on hold]

When playing games on my Windows 7 laptop, it seems it has better and worse days. One day I might be experiencing very low framerates, while on the next, everything goes smooth*. But from my ...
1
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5answers
9k views

Excel 2007 and Word 2007 are very slow when closing or opening a file

I have a new PC with a fresh install of Office 2007. This computer freezes randomly when I open or close an Excel or Word file. It seems to freeze more often when the file is from a network share. ...
0
votes
1answer
31 views

seagate Central 3TB slow Transfer Speed

I have a seagate central 3TB NAS which is returning very slow file transfer speeds of just 4mbps. My router is a Buffalo Airstation WHR-G300N and is showing 300mbps connection speed. It is in N ...
7
votes
1answer
1k views

HDD performance spikes

I have a Dell Precision T1700 I purchased for about $1500 almost a year ago. I am having some moderate hard drive issues. I think it's not as fast as it should be. Booting seems quite long considering ...
2
votes
2answers
2k views

Test disk write speed on existing partition

I want to benchmark write speeds on a disk in an existing server setup. I suspect there is a problem with the write perf of the controller. Benchmarks I have tried (SiSoft Sandra, HDTune) report that ...
0
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0answers
17 views

How can Chrome browser cookies cause internet issues?

Alright, so I'll make this as short and concise as possible. I have both DishNET and mobile data/hotspot for internet. I noticed DishNET was really slow today(I would estimate less than 5KB), so I ...
4
votes
6answers
865 views

What might cause a severe slowdown on a PC without showing high CPU usage?

A friend's Windows XP laptop has become extremely unresponsive over the last few days, taking over 30 seconds to open My Computer for example and a over a minute to open a locally stored Word ...
0
votes
1answer
3k views

ext4 vs btrfs performance on SSD array

I am observing something that I cannot explain. I am trying to come up with a good filesystem configuration using HP P420i controller and SSDs. Out of curiosity I have tried BTRFS (still unstable so I ...
0
votes
1answer
20 views

How to lessen performance impact on Dell laptop with defective power system?

A few months ago, I replaced a broken cord for my Dell Inpsiron 15 laptop. The replacement cord (a slightly different model from the factory cord) worked perfectly until a week ago, when I started ...
2
votes
5answers
967 views

Where did my memory go after having a long up-time?

I have a Windows 7 Professional computer with 12GB of RAM. On a fresh start up, the amount of RAM is more than adequate for my needs. However, a couple of weeks into up-time and it appears that the ...
4
votes
2answers
705 views

It is possible to reproduce the Windows 8 Fast Hybrid Boot into Windows 7?

One of the best new features introduced by Microsoft in Windows 8 is the Fast Hybrid Boot, which improves Windows 8 boot times up to 70% compared to Windows 7: Basically, what this new technique ...
0
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0answers
26 views

Internet is slow on some websites: Can't login to StackExchange using Google account

I recently switched to windows 8.1 (64 bit) on my new laptop. While the internet for some websites is fast enough, but it slows down on some other websites and even doesn't open them, for example I ...
54
votes
9answers
75k views

How can I produce high CPU load on a Linux server?

I’m currently in the process of debugging a Cacti installation and want to create CPU load to debug my CPU utilization graphs. I tried to simply run cat /dev/zero > /dev/null, which works great ...
1
vote
1answer
44 views

Swapfiles on high-RAM and SSD systems

tl;dr 22GB RAM, SSD, pagefile, yes/no? Reduce mapped files reserved memory yes/no? how? I am running Windows 7 on my work desktop. It has 22GB of physical RAM. I am running it with an SSD. The ...
-3
votes
0answers
32 views

Server needs to be rebooted regularly, why? [closed]

I can not understand why server slowes down and finally freezes in time (in a week or two) and why it goes away with a reboot. Edit: In response to "need more information" comments, I can only ...
0
votes
0answers
15 views

Will SSD work better than HDD with Intel i3 m330 [duplicate]

I have Intel i3 M330 CPU and a HDD in my laptop (it's 5 years old). I was thinking about replacing the HDD drive with SSD Sandisk (read/write 500mb/s). Will I see a considerable improvement in the ...
1
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4answers
4k views

HP Probook 4530s great specs, but lagging. Hard Drive?

I have this laptop, which has a i3 processor, 4gb memory, 7200rpm hard drive. So there is nothing wrong with the specs. Even when I have no applications open, simply closing and opening windows, ...
0
votes
1answer
27 views

Why am i getting Very slow dd dsync test results in Linux.

I am investigating slow application issues with some New Hardware and am running into some odd results. I am trying to determine what is causing this behavior. I am using dd if=x.b1 of=x.b10 ...
2
votes
1answer
65 views

Why might a file transfer be going hideously slowly on Windows, but fast on Linux?

I realise this might be an impossible question to answer, but here goes: I have an embedded board that I've written a load of software for; this board can be sent a new firmware image (image here is ...
4
votes
1answer
178 views

Intel SSD DC P3600 1.2TB performance

I just got a workstation with an Intel SSD DC P3600 1.2TB on an Asus X99-E WS motherboard. I started Ubuntu 15.04 from a live CD and ran the Disks (gnome-disks) application to benchmark the SSD. The ...
3
votes
1answer
5k views

BootCKCL.etl file size & Session “Circular Kernel Context Logger” stopped due to the following error: 0xC0000188

I have a few regular / re-occurring errors in my event viewer which seem to be linked to logging upon boot and shutdown. I am running Windows 8 x64 professional. Event ID 4: The maximum file ...
0
votes
4answers
3k views

Slow internal disc to disc file transfer speed

I ran the HDTune drive monitor while I was transfering about 80 GB of various sized files, most of which was running about 40 MB/s, but you can see where it spiked down to under 1 MB/s. ...
19
votes
3answers
1k views

Why are newer generations of processors faster at the same clock speed?

Why, for example, would a 2.66 GHz dual-core Core i5 be faster than a 2.66 GHz Core 2 Duo, which is also dual-core? Is this because of newer instructions that can process information in fewer clock ...
0
votes
1answer
30 views

Slow Word's startup as it tries to connect to something

Before, Microsoft Word on my PC startup very quickly and smoothly. I think it took less than 2 second to start. Recently the time to get to a ready screen suddenly increased a lot (~20s). I think it ...
0
votes
2answers
26 views

Add 2x4GB RAM to 2x2GB or replace? [closed]

I have a mid-2011 iMac which has 2x2GB memory. I am trying to decide which of the following would be the best option (also considering overall cost). There are 4 bays available. Should I choose to ...
17
votes
8answers
12k views

Does storage capacity affect hard drive performance?

I read somewhere that smaller (in terms of disk space) hard drives are faster than equivalent but bigger hard drives. How true is this? In other words, say I have two hard drives. Both are of the ...
0
votes
1answer
42 views

Slow development machine down?

My development machine is fairly zippy with a decent graphics card. The production machines to which our software is deployed have a much lower specification and no graphics card (uses Intel shared ...
0
votes
2answers
98 views

How to diagnose erratic system slowness?

My 3yo macbook pro has been having these hiccups recently. I'm trying to figure out a way to diagnose the problem. Brief specs: pre-retina MBP, SSD, running Win7. It's been working fine for years. ...
0
votes
0answers
34 views

Native Windows Libraries Under Wine

As we know, Wine has the ability to run windows native Dlls instead of it's own library files. For example you can use the original d3dx9.dll instead of wine's own d3dx9.dll implementation. Does ...
0
votes
3answers
55 views

How much does an SSD drive affect multi-tasking performance in an advanced laptop? [closed]

I am curious whether it would be beneficial for me to buy an SSD drive for my new laptop. It is a Lenovo ThinkPad E540-F 8 Gig Ram Core i7 (MQ) – 6 meg cache My typical usage is ...
0
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1answer
20 views

Win 7 64-bit slow during software raid 1 resyncing

I read about the slow resyncing here: http://serverfault.com/questions/107636/how-to-view-status-of-software-raid-1-resynching I have a different question: not only is my resyncing slow; but during ...
0
votes
2answers
233 views

How warm should SAMSUNG D3 drive be?

I have an external 3GB Samsung D3 Station 7200rpm hard drive and my SMART diagnostics program (CrystalDiskInfo or HDSentinel) is warning me that the drive is running too hot. The temperature in the ...
-1
votes
1answer
38 views

Why does my laptop suddenly starts to lag once I open my browser_

I got this laptop about 4 years ago, it's a VIT ( Venezuelan Government Computer Company ) Laptop. It has 2GB of RAM, an Intel Core2 Duo. It started with a Windows Vista, then changed it to WIndows ...
0
votes
1answer
47 views

Pycharm on Linux: Scrolling has become suddenly very sluggish

I've a Linux machine with 4gb of RAM and 2 VCPUs on VirtualBox running on a Windows 7 host (Core i7 with 16 gigs of RAM). The Linux VM is my workspace for a project. I run Mobaxterm on my Windows ...
0
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0answers
50 views

My brand new gaming computer runs at 30 fps? [closed]

My brand new gaming computer that I built is running 30 fps on gta V, all my drivers are up to date, nothing is wrong with my hardware. I'm running a 144hz gaming monitor, and honestly my old hp ...
3
votes
2answers
4k views

Does ReadyBoost slow down systems with more RAM?

I have 4 GB of RAM and would like to make use of ReadyBoost to speed up hard drive access, by taking advantage of its hard drive cache method. However, as I understand the technology, ReadyBoost ...