Questions tagged [performance]

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

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Steam games lagging on Debian 7

I installed Steam on to my ThinkPad laptop which is running Debian 7. It has a Intel Core 2 Duo P8600 @ 2.40Ghz and 4GB RAM, along with an Intel Mobile 4 Series graphics card. It's my understanding ...
mickburkejnr's user avatar
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2 answers
495 views

5400rpm HDD <- paired with -> Gen4 i7 and 16GB memory

From what I understand, to get a really good performance from a laptop on heavy tasks such as video rendering, fast boot time and accessibility, you would want an i7 CPU, a lot of RAM, and a fat ...
toms's user avatar
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1 answer
2k views

Using FireWire 800, does it makes sense to use a SSD hard disk as opposed to a 7200rpm?

Does it makes sense to buy a SSD HD and use it with the Firewire 800 port? Or should I buy a standard 7200rpm one? Firewire 800 is slower than internal HD (am I right?) so I was thinking the ...
Saturnix's user avatar
  • 177
1 vote
2 answers
402 views

Why are CPUs better than GPUs at regular tasks?

I'm trying to understand the relative strengths of CPUs vs GPUs. Quoting popular opinion, "the more cores, the better", so by that logic, a GPU should always outperform a CPU, and it does with ...
user avatar
2 votes
0 answers
587 views

Can you explain me VMWare Performance Counters in Windows?

I am having a guest Windows Server 2008 R2, i.e. VMWare virtual machine Can you explain me VM counters vs. non-VM-ones, in the case of "% Processor Time" (under "VM Processor" section) vs. "% ...
Gennady Vanin Геннадий Ванин's user avatar
3 votes
1 answer
220 views

How can I measure speedups on my application when performance varies on my machine?

I work on a monolithic program running on Linux that's very memory intensive. We're having trouble tweaking the speed of this program on most of our large memory machines because the performance is ...
dromodel's user avatar
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1 answer
290 views

Computer has good specs, yet running applications slowly? [closed]

I don't know what's up with my pc it's running pretty slow, and it was like this when I bought it too. It just runs applications like google chrome skype,games pretty slowly when my old pc of 2gb ram ...
Vitalynx's user avatar
  • 103
2 votes
4 answers
4k views

How to diagnose why a computer is running so slow? [closed]

Generally, what are some ways to diagnose why a computer is running so slow? To find out whether it is because of insufficient memory, busy CPU, or some other reasons? What are some distinct symptoms ...
Tim's user avatar
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2 answers
183 views

Is buying an SSD for existing OS on HDD a viable option? [closed]

I've read that the best use of SSDs can be achieved by putting your OS on them as well as programs. What about those who already have a functioning laptop with OS and programs installed on a regular ...
V_ix's user avatar
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1 vote
5 answers
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Laptop Performance vs. Desktop Performance [closed]

Assuming I choose the "same" processor (let's say an i7) and the same SSD, can the performance of a laptop machine equal that of a desktop machine? I say "same" (quotes) processor because I guess ...
Martin's user avatar
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3 votes
2 answers
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Why does increasing Virtual Memory not help improve game performance? [closed]

My RAM has a pathetic 2GB and most of my applications and background services take up at least 25% to 35% of it and thus causing the game to be laggy and all. I've tried adding virtual memory, from ...
MegaRodeon's user avatar
7 votes
1 answer
1k views

No performance increase on I/O intensive operation after symlink to ramdisk

We have a system that transforms a set of several thousand multi-MB files. After every step in the transform, it writes the intermediate file to disk. The concept is similar to a scratch disk. We ...
MattPark's user avatar
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3 votes
1 answer
541 views

SSD & HDD - which should get 6Gb/s port

I have a PC with a single 6Gb/s SATA port, I have a 7200RPM HDD that is my primary drive (i.e. the OS is installed on it), I also have an SSD (450MB/s Sequential R/W, 85K Random Read, 55k Random Write)...
Obsidian Phoenix's user avatar
3 votes
1 answer
127 views

Why some notebooks with superior specs are cheaper than notebooks with lower specs? [closed]

I noticed a pattern. There is a class of notebooks (business notebooks I think), like Dell Latitude or Toshiba Tecra, that have inferior performance compared to notebooks that are cheaper- like Dell ...
Tyrone's user avatar
  • 33
4 votes
1 answer
29k views

RAM. What is interleaved memory?

I want to mix some RAM sticks: Actually I have 2 DDR3 sticks x2 GB (on slots 1,3 to work in Dual Channel - an they are working, if believe to CPU-Z tool). I want to put in other 2 slots (2nd and 4th) ...
ALZ's user avatar
  • 397
0 votes
1 answer
4k views

Windows Dynamic Disks vs BIOS FakeRAID

I have two 3TB disks in a Windows 7 Dynamic Disk Mirror array (effectively, software RAID1). Apart from being tied to the O/S (I can't mount the array in Linux, for example) - is there any difference ...
Craig Watson's user avatar
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1 vote
0 answers
50 views

One Windows 7 pc slows down when another pc is turned on

I have a very strange problem that is affecting only 1 computer of the network (a network composed of 6pcs and two network printers): If I turn on pc number ONE first, and pc number TWO after that, ...
eversynth's user avatar
0 votes
1 answer
133 views

Investigating causes for slow/freezing computer

I'm investigating the causes for my 2-year-old Samsung laptop running slow and sometimes hanging under very slow stress. I have some friends which had the exact same model as mine and had to send ...
iomartin's user avatar
  • 349
3 votes
4 answers
15k views

How do I change the power plan using batch

I would like to know how to change the power plan in Windows 7 to high performance using a batch file. I am making a program that boosts pc performance.
09stephenb's user avatar
1 vote
0 answers
134 views

How to keep apache running on Windows machine?

I am forced to use Apache on a Windows machine (server 2008) - basically it was installed in the XAMPP package. The problem is that it frequently hangs up. The "send error" notification appears - and ...
user280952's user avatar
1 vote
2 answers
574 views

Laptop being unacceptably slow

First of all: I've just read this thread (link) in a search of finding the answer. My laptop specs are roughly: Some mobile good i7 roughly 3 years old, 4GB RAM, Win7 and 500GB HDD and NVidia Quatro ...
skiwi's user avatar
  • 388
4 votes
1 answer
8k views

Unusual and sudden slow login and lock screen in Windows 7

I have Windows 7 Professional on my laptop (since 2011, not updated). It was working fine, but suddenly the login screen has an unusually long please wait time, and lock screen takes about a minute or ...
user166289's user avatar
1 vote
1 answer
2k views

How to investigate the cause for unresponsiveness on Linux? [closed]

I apologize that the problem I'm writing about is not very concrete. I use KDE4 on Debian testing, and use KDE's file manager Dolphin very often, most of the time without problems. Recently, I suppose ...
A. Donda's user avatar
  • 839
9 votes
4 answers
22k views

Can SSD raid be faster than ramdisk?

So a typical ssd will have a read speed of 250 - 500 mb / second. And a ram will have about 10x than that. My question is: Can 4 ssds with raid-0 be faster than a single ram memory block for some ...
Koray Tugay's user avatar
  • 1,930
1 vote
0 answers
701 views

Installed Windows 8.1, Explorer now taking > 50% CPU

I installed Windows 8.1 (x64 Enterprise) on a 5 1/2-yr old Dell Inspiron 1720 laptop. I'm seeing sporadic extended periods (a couple minutes up to 10-15 minutes) where Windows Explorer is consuming 50-...
daveh551's user avatar
  • 831
1 vote
1 answer
172 views

How much does performance suffer when using a single DDR module?

I have a Dell Dimension 8300 that is still trucking along. A while ago I had ugpraded to 2x1GB in it. Over the weekend, one of the modules died, so I went and bought another 2x1GB (to run in matched ...
Aaron's user avatar
  • 310
0 votes
2 answers
1k views

Slow ping on one machine

We have 13 computers connected to Windows 2008 Server R2 Domain. There is Windows 7 64-bit Professional on all of them. The computers have same configurations and are quite fast (Intel Core i3, fast ...
Firzen's user avatar
  • 111
0 votes
1 answer
3k views

Why is Blu-Ray File Read Speed (Data Transfer) slower than Write Speed?

I burnt a full Blu-ray disc (25GB) at 8x speed. It took some 20 or so minutes, but when I try to copy it back to my computer to verify the contents via Windows explorer, it takes over 2 hours and says ...
PressingOnAlways's user avatar
-1 votes
1 answer
536 views

What are the potential causes of Visual Studio 2012 being sluggish? [closed]

I've recently begun to try out MS Visual Studio 2012 (+ NVidia NSight) on two (different) machines running Win7 64bit. On one machine - actually the one less cluttered with all sort of installed apps ...
einpoklum's user avatar
  • 9,423
0 votes
3 answers
95 views

Multiple CPUs, multithreaded performance

My program: 100% CPU and RAM based, performs mathematical calculations, reads the data from the HDD into RAM in the beginning. No communication between threads. The threads, all take the same time ...
 ShadowHero's user avatar
1 vote
5 answers
337 views

How to speed up my new system [closed]

I have just bought a desktop, since I already have an ultrabook laptop, for what I do which is a lot of gaming (for my YouTube channel), video editing, web/graphics design stuff and normal internet ...
user279297's user avatar
0 votes
1 answer
828 views

USB Flash drive too slow

I've tried like 10 USB flash drives, and they are all slow :( External USB hard-drives are much faster. For example transfer speeds on the WD passport are like 20 MB/sec compared to like 2 MB/sec on ...
mry's user avatar
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0 votes
0 answers
116 views

How to increase IO for operation "SELECT"?

I use windows server 2008r2 with role Hyper-V. The guest system is Ubuntu 12.04 LTC (64 bit). It is situated on the dynamic virtual hard disk /dev/sda. There is postgresql-9.1 (amd64) on the Ubuntu ...
AmShegar's user avatar
  • 133
51 votes
1 answer
98k views

How to increase VLC RAM buffer for offline files?

I would like to configure VLC player to preload a significant portion (like a hundred megabytes or so) of a video file from the hard disk to RAM before playing it. Is this possible?
Ivan's user avatar
  • 7,503
1 vote
1 answer
2k views

Windows 8.1 boot hangs (~120s) in "Session Init"

As the title already says, my Windows 8.1 installation take quite some time to boot (without FastBoot). I managed to record an etl file of the boot process. The result is a very large file: 4.5GB, ...
Tobias's user avatar
  • 13
2 votes
2 answers
20k views

Windows 8.1 file explorer is Super slow

I have a newish ( a couple of months old) laptop. i7 4700mq gtx765 8gb ram I'm using an ssd boot dirve and a HDD for storage. The computer has absolutely no problems running programs but it is very ...
Krishna ravichandran's user avatar
1 vote
1 answer
101 views

Why is my computer really slow 20% of the times I turn it on?

The problem is that 1 out of 5 times when I turn my computer on, it turns into this sort of "mode" where whenever I open a window, it does it really slow and whenever I close a window, that too is ...
Carla's user avatar
  • 11
47 votes
9 answers
141k views

TiWorker.exe - Very High CPU Usage

I have a laptop running Windows 8. Although it originally ran well, it started having very bad performance issues. I decided to perform some research into the topic. Opening up Task Manager, I ...
dillmo's user avatar
  • 3,031
0 votes
1 answer
853 views

Fast ways to login as a local administrator on Windows 7 company computers [duplicate]

I need to login to several windows 7 computers at work a day usually as local administrator. It can get tedious typing in the long username and password. What are the fast ways to login as local ...
Tom's user avatar
  • 21
1 vote
1 answer
1k views

Does copying files in multiple dialogues slower than in one?

When you select some files and copy them, the file copying dialog appears with progress bar and speed indicators. But when you select some other files and copy them, another dialog pops up and both ...
user1306322's user avatar
  • 4,766
0 votes
1 answer
8k views

How can I achieve maximum sustained sequential disk write performance?

I need data write rates of ~1 GB/sec sustained for ~1 hour. Data is coming in over this PCIe x4 frame grabber. I need to stream its full bandwidth to disk. I don't have experience with RAID, but as ...
user1441998's user avatar
0 votes
2 answers
3k views

Use Sata III port with SSD or HDD drive? [closed]

I'm going to buy a new Desktop PC, and I'm thinking about buying a 32GB SSD SATA III and a 1TB HDD SATA III hard drive. The problem is that the motherboard only have one Sata III port, and the rest ...
Miguel's user avatar
  • 13
1 vote
0 answers
108 views

Does shrinking a partition to its minimum size then expanding it increase performance?

As a VPS administrator, I've shrunken and cloned partitions (or disk images) to perform backups. The shrinking of the partition adds a few extra minutes of downtime, but reduces the amount of total ...
bwDraco's user avatar
  • 46.1k
2 votes
1 answer
167 views

Is there a noticeable increase in computer performance moving from a Dual Core to an i5?

I have an i5-3470 3.2Ghz and 6GB or RAM. I also have a Dual Core E5700 3.0 and 8GB or RAM. Both use Windows 7 Pro. I am currently using the latter. I would like to use the i5, but as a developer, ...
johnny's user avatar
  • 2,003
3 votes
0 answers
2k views

Windows 8.1 Process Migration Limits CPU frequency scaling

Summary: I've noticed that with Windows 8.1 on my laptop, running a single CPU intensive program does not cause the CPU frequency to scale to its maximum value. I suspect that this is because of ...
Gabriel Southern's user avatar
0 votes
3 answers
4k views

Windows 7 slows down when I connect the laptop charger

I have HP ProBook 4520s laptop running Windows 7. When I connect the laptop charger to electricity, Windows becomes very slow. However, when I disconnect the power, Windows returns to operating ...
DevC's user avatar
  • 103
3 votes
0 answers
2k views

Too much disk activity READING event logs

On Win 7 SP1 x64, I notice that sometimes the disk gets so busy that Windows becomes unresponsive for minutes at a time. I referenced this problem on SU in the past once. I've since replaced the drive,...
Gaia's user avatar
  • 6,999
2 votes
1 answer
2k views

Powerline / Wifi networking performance limitations

I've currently got a Homeplug AV (Powerline AV200) network around my house that I've been using to stream films. However, I've recently ripped a few Blu-Rays at full bit rate and realised I've not ...
asc99c's user avatar
  • 185
2 votes
5 answers
16k views

Faster processor or more RAM? [closed]

I currently have a low-end Acer laptop with: Intel Pentium CPU B960 2.2GHZ processor 4GB RAM Windows 8 64-bit It runs great until I start Photoshop CS6. That slows it right down, and if I ...
user275146's user avatar
2 votes
2 answers
338 views

Suddenly a large set of applications seems to have memory leaks, allocating more and more memory nonestop

Like already said in the title, a large set of applications is suddenly having massive memory leaks. These are all programms that I have use for some time already, and none of them had this problem ...
Asdfreak's user avatar

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