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

learn more… | top users | synonyms (3)

2
votes
2answers
131 views

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

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 ...
50
votes
5answers
4k 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 a decent frame rate. However, if the power cable gets unplugged while I'm playing, the game immediately starts slowing down, even if I'm ...
2
votes
0answers
48 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 ...
55
votes
2answers
8k 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 ...
0
votes
1answer
2k views

Windows 8 Metro Apps Are Slower Then Classic Apps

I'm using Windows 8 Enterprise on a quad core machine with 8GB of RAM. The performance is excellent and applications are launched amazingly fast. Even heavy ones, like Microsoft Visual Studio. That is ...
2
votes
2answers
38 views

Does frequency of RAM really matters?

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 ...
1
vote
2answers
3k views

Computer goes super-sluggish but Task Manager shows no CPU usage

At times, for instance after running a resource-intensive program, my normally quite stable Windows7 PC becomes virtually unresponsive for as long as a couple of minutes. Even changing directory in ...
5
votes
2answers
81 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 ...
0
votes
1answer
30 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 ...
5
votes
1answer
4k views

VMware Fusion performance degrading after few hours

I've been having an issue with VMware Fusion for some time now, where the VM (running Windows) runs fine initially, but will slow down to a grind after some time (best guess is a couple of hours). ...
-1
votes
2answers
54 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 ...
1
vote
0answers
26 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
votes
0answers
7 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 ...
1
vote
0answers
34 views

Can I add more RAM to make my Samsung N-145 plus Netbook faster? [closed]

Samsung N145 Plus. Intel Atom CPU N455@ 1.66 GHz. Win 7 Starter 32 Bit OS. I like this Netbook, but it is somewhat slow. I have already added a 2 GB RAM stick in place of the 1 GB that came with it. ...
5
votes
1answer
1k views

Does anyone know if it's 'normal' that you can't defrag an Outlook .ost file?

I've tried defragmenting my hard disk to see if Outlook performance improves. The .ost file shows 1000+ fragments but even after a post-defragmentation restart - never launching Outlook - it still ...
-1
votes
3answers
67 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 the ...
1
vote
1answer
32 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
vote
1answer
36 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
votes
0answers
22 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
votes
2answers
34 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 ...
2
votes
1answer
3k 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 ...
3
votes
1answer
959 views

Gentoo LDFLAGS optimizations really needed?

I'm using Gentoo Linux. Here is my toolchain: sys-kernel/linux-headers-3.9 sys-devel/binutils-2.23.1 USE="cxx nls zlib -multislot -multitarget -static-libs {-test} -vanilla" ...
0
votes
4answers
825 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
4k views

Service Host: Local system (network restricted) is thrashing hard disk

I am having windows 8.1 with update 1 installed and all release updates of windows till the date i am posting this questions. System is laptop, Core i3 with 6 GB RAM and 500GB hard disk. When ever i ...
0
votes
2answers
496 views

Linux packet forwarding performance

I’m experiencing performance issues with Linux packet forwarding. I use an old laptop as a router, with iptables to handle masquerading and ipv4 forwarding turned on. Intranet network is connected ...
-1
votes
2answers
37 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
votes
4answers
176 views

Why is my Mac slow?

I've started seeing the beach ball cursor on my Mac a lot lately, and I haven't been able to track down the cause. It happens even after restarting, with only a few applications running (basic stuff ...
0
votes
4answers
50 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 ...
48
votes
8answers
7k 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, ...
2
votes
2answers
1k views

Lagging windows and mouse pointer in Windows 7

I'm using Windows 7 and on top of it I have installed Visual Studio 2010 and SQL server. For some time now I have been experiencing a laggy behavior. Explorer windows minimize and maximize with a ...
-2
votes
0answers
44 views

Why is my speed slow for my smartphone or tablet on my second wireless router?

I have a Billion 7800NXL as my primary router and a TP-Link Archer 2 as my secondary router. When i connect my laptop to my secondary router through wireless everything is fine but when i connect my ...
1
vote
4answers
3k 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, ...
1
vote
0answers
18 views

PHP running slow on Plesk 12 Windows VPS, IIS7.5, 6 cores, 6gb RAM [migrated]

I am having an issue where PHP is running very slow on my Plesk 12 Windows VPS. Its a high end VPS with 6 AMD Opeteron (2.4ghz) cores and 6gb RAM. The server runs Plesk 12 on Windows Server 2008 R2, ...
0
votes
2answers
56 views

Iperf network benchmark measures under-utilized?

I am working on two embeddded high performance network routers and I have connected them point-to-point via a 10Gbit optical fibre cable. I ran iperf benchmarks on them and when I connect through an ...
8
votes
5answers
7k views

Over gigabit connection, Teracopy does 31MB/s, but Windows 8 does it at ~109MB per second?

I got my brain-melting first taste of Gigabit networking today, between my 2011 MacMini and Windows 8 Pro desktop connected via Cat.5e to Linksys WRT320N(sporting dd-WRT). After making sure that the ...
0
votes
1answer
110 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 ...
6
votes
7answers
11k views

Are we suppose to manually delete contents of /tmp?

I was under the impression that /tmp will regularly delete "old" files. Seems to me that /tmp will just grow as long as it wants to and won't delete anything. Some people say it's betetr to just leave ...
0
votes
1answer
51 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
votes
0answers
24 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 ...
1
vote
1answer
2k views

Flash stream makes my internet slow and cpu rush

When I try to watch a live Flash stream, my CPU usage goes up to 75% and my Internet speed goes down. If I run a test before the video-stream, my speed is ~40/10Mbps and during the stream it drops to ...
0
votes
0answers
15 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 ...
0
votes
1answer
88 views

Is copy speed depends on or vary with file-types?

I want to know is file-copy speed is depends-on/vary-with file-types? For same size file but difference in type of file (Ex: exe, dll, zip, ppt etc.). If It is depends then Why/How?
1
vote
3answers
423 views

When do you know you need more ram?

My current system is: intel core i5-750 quad core 4gig ram 1600 600gb 7200rpm HDD running on windows 7 When I look at the performance monitor my memory rarely goes above 50% of total memory usage. ...
0
votes
1answer
360 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 ...
2
votes
0answers
47 views

AMD Processor state failures

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 ...
5
votes
1answer
4k views

High Disk I/O and CPU usage of System Process in “System Volume Information”

I've a problem with high disk IO and cpu usage from the system process. With the performance monitor I can see that it writes and reads about 100MB/s froM "System Volume Information". I tried to get ...
0
votes
1answer
35 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 ...
1
vote
2answers
26 views

Is it normal for uploads on ADSL to make the connection unusable (> 4000ms latency)?

I have an ongoing saga with my internet connection; where the latency periodically goes through the roof. In most cases, this seems to coincide with something uploading data. I'm not having a lot of ...
11
votes
1answer
5k views

RamMap “Empty standby list” drastically speeds up PC. Is there a better way to do this?

Many people are educated on how Windows Memory manager caching work by reading Microsoft white papers, etc. However, there are relatively few documents that describe real-world performance issues ...
1
vote
1answer
21 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, ...