Tagged Questions

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

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0
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1answer
32 views

Testing new (refurbished) SSD

I got a Corsair Force GS 128GB, and popped it into the "dock" integral to the case. It's a SATA connector going to one of the motherboard headers, like any other internal drive. After initial ...
0
votes
0answers
7 views

Improvement of transfer speed over afp shares

I was performing speed tests on my upgraded network, and i'm not getting all the speed i thought i could get across network shares. The tests i did between machines A and B (both running OSX Yosemite, ...
0
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0answers
14 views

Slow computer. Used to be fast [duplicate]

Ok guys my last question was flagged so I will try to be more specific. I bought a computer 3 years ago that a friend of the family built for me. He seems to know what he is doing so he built it ...
-1
votes
0answers
16 views

I cant figure out whats wrong [duplicate]

My computer used to be super fast and I could play games on max but this last month things have gotten very slow. the computer is a desktop, 3 GHZ CPU, GEFORCE GT9800 video card, 8 GB DDR2 RAM, CD/DVD ...
-1
votes
1answer
14 views

4-bay NAS write performance RAID 5 + SSD vs RAID 10

I am planning on buying a new NAS (QNAP TS-453 Pro) for my Home Office. The NAS has 4 HDD bays and supports SSD Caching. Hence, I was wondering which setup would probably be faster in terms of write ...
0
votes
0answers
19 views

Samsung laptop slowed down

I have a notebook NP550P5C from Samsung. It has impressive parameters: 8 GB RAM Intel i7 3610QM @ 2,3 GHz 904 GB HDD with 8 GB SSD It runs Windows 8.1 64bit. It used to be very fast but after 22 ...
1
vote
0answers
29 views

Windows 7, Hibernation Disaster

I think that I messed up my lap top after accidentally putting it into hibernation. I was at school and at the end of class I was putting my computer into sleep mode. Unfortunately I accidentally ...
3
votes
0answers
42 views

Why is my GPU not being fully utilized?

I happen to have two identical X201 Lenovo laptops, both with Windows 7 installed, latest drivers, etc. However, only one manages to run 3D computer games with decent performance. I have gone ...
0
votes
1answer
55 views

Why is the i7-5960x only 3.0Ghz, while the i7-5930k is 3.5Ghz?

Why is the i7-5960x only 3.0Ghz, while the i7-5930k is 3.5Ghz? I was really looking forward to the 8-core intel i7, until I saw the stock clock speed was lower than it's 6-core counter part. Is there ...
0
votes
0answers
20 views

USB 3.0 flash drive has slow performance after reformatting

I bought a USB 3 flash drive, and after a few weeks of using it (happily), I needed a bootable linux and that was the only thing handy. So I reformatted it and worked through all that jazz. But I'm ...
0
votes
0answers
17 views

Sudden sluggish performance of ubuntu system

since 3 days a very important system at my workplace started a most peculiar behavior. There is no internet connection on that PC and no updates have been made. When I started the PC 3 days ago after ...
0
votes
0answers
13 views

Processor never reaching maximum frequency

I have an Intel i7-3630QM which, according to both the adverts and /proc/cpuinfo, can go up to 2.40GHz per core. I ran cpufreq-set -g performance cpufreq-set -f 2400000000 And I'm running a ...
0
votes
1answer
48 views

Standard account in Windows 8 takes too much time to reach metro screen

I have a Windows 8 system in which there is an admin and a standard account. The admin account will take only 10-20 seconds to reach the metro screen during startup. While the standard account takes ...
0
votes
2answers
80 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 ...
1
vote
0answers
9 views

Assessing Performance in Process Explorer: Varying Block Sizes

I am trying to assess the performance of my scientific software using Process Explorer, with the files both locally on our blade server (Dell VRTx, Windows Server 2012) and over the network from ...
-4
votes
1answer
32 views

Running Windows 7 on weak hardware [duplicate]

I have a PC machine with a Pentium 4 and 2GB RAM. Windows 7 is installed, but it runs very slowly. Installation of Windows XP is not suitable as I need to use some software that works only on ...
0
votes
1answer
20 views

Why is my hard drive slowing down halfway through a read/write benchmark?

I'm using gnome-disks to do a benchmark on an old 5400RPM Hitachi HDD that I pulled from a PS3. It's connected to my computer through an external USB 3.0 enclosure. Here's the output graph from the ...
-2
votes
1answer
46 views

Adding more RAM to Gigabyte GA-P35-DS4 rev. 1.0 makes it extremely slow

Summary: Using the motherboard mentioned at the title, adding the DDR2 modules (from 4 GB to 8 GB) caused extreme slowdown. Memtest86+ reveals that probably reading the upper 512 MB works, but is ...
0
votes
1answer
25 views

What is the proper way to debug a slow internet connection?

I turn to super users for their best tips. Consider the following scenarios: A large house with many roommates with many devices and no way to tell which one is the issue Skype choppy, youtube ...
1
vote
2answers
68 views

Stop or pause Windows startup programs during boot? [on hold]

This is not a duplicated question. This question is about stopping or pausing the current startup list at any time rather than bypassing it. Is there an application or program that can stop or pause ...
0
votes
0answers
16 views

How to tell if your graphics card is functioning optimally?

My laptop is a couple of years old. It's a mid-range multimedia rig: Intel i7 2.2Ghz (2670QM allegedly), 16GB RAM and a GT 635M 2GB graphics card. I do a fair amount of gaming as well as multimedia ...
1
vote
1answer
28 views

Is an operating system responsible to making the best use of system resources?

Suppose I have a powerful desktop PC with a high performance CPU and GPU. Does my OS decide how it should use these resources? Can there be any notable differences between different operating systems ...
1
vote
1answer
52 views

Hard drive working in 5 second pulses?

Bit of an odd issue with a laptop (Toshiba C660D 181). For most of the time, the hard drive seems to operating in 5 second pulses. The laptop doesn't have a HDD light and the HDD itself is very ...
1
vote
1answer
21 views

Can an xperf trace contain passwords?

I recorded an xperf trace. Can the trace contain passwords? (assuming that paths contain no password) I see that upon hitting xperf -stop I have the following warning: The trace you have just ...
0
votes
1answer
91 views

Windows 8.1 - HDD spinning at 100% even though no read/write

I have an HP Laptop (Core i5, 8GB RAM, 320GB HDD) running Windows 8.1 (x64), that recently got the Sality.AU Virus. The OS had only just been installed, and a friend downloaded the drivers and put ...
0
votes
1answer
16 views

Which one of the private set, working set and virtual memory has a higher impact on system performance?

Amongst an application private bytes, working set, and virtual memory, which one has the highest impact on system performance? To be more clear, consider EsetNod32 antivirus. If you look at Task ...
0
votes
1answer
99 views

Windows 8.1 100% disk usage

Sorry to make another one of these posts, but I've dug through at least a dozen other threads and no other solution has worked for me. My problem also seems to be slightly different. As you can ...
1
vote
1answer
46 views

What is the difference between Hardware reserve Standby and Free memory and how is it possible that my PC works slower on all available 13K RAM

My PC is slower now with Standby memory 13K+ than when I used 8K Hardware reserved (it was then much faster) Why is this? What is the difference between Hardware reserve Standby and Free memory? I ...
1
vote
2answers
43 views

Moving Files Slow Even With SSD

I 'upgraded' to a Samsung 840 Evo SSD drive, and whilst moving some files around on my drive, its slowed to a crawl. Heres a video example: http://screencast-o-matic.com/watch/c26DiTej3e My machine ...
0
votes
1answer
22 views

Disabled programs at Startup - broke my computer

So my Vista laptop is painfully slow. It's about 5 years old now, a Toshiba satellite with Vista Home Premium. It's due for a clean up. I can't afford a new laptop, so I run all my adobe programs ...
0
votes
1answer
72 views

What impact do system components (VRAM/RAM, GPU, etc.) have on gaming performance?

I get that RAM in general is just another form of memory (a sequence of bytes) to store some information. So to be more precise, I assume at the hardware level at least, VRAM and RAM are the same. ...
-2
votes
2answers
47 views

Which has faster read/write speeds an external hdd raid or external single ssd [closed]

I want to move data to an external hard drive AS FAST AS POSSIBLE and I was wondering whether it would be better to have 2 HDD (7200 rpm or higher 500GB each) in an enclosure running RAID 0 or a ...
0
votes
3answers
45 views

PC slow when creating folders, displaying file open/save dialog

I've noticed my trusty Windows 7 PC seems to be getting sluggish, but in quite specific ways only. When I am using a specific program it is responsive and works fine. But more and more frequently, ...
2
votes
1answer
30 views

Windows: Wide Variation in Read Performance

I'm new when it comes to measuring i/o performance. I found a tool called HDTune Pro, which according PCWorld is a good tool for i/o benchmarking. This tool attempted to read 40GB, on the first ...
1
vote
1answer
9 views

How can I debug IOZONE over the network?

I'm working on a mac and I have a vm running ubuntu server. I created a file vm_client.iozone that looks like: vm /path/to/test /usr/bin/iozone I have configured iozone to work over ssh using ...
0
votes
1answer
26 views

Most-playback-performance video-file-format?

I have lots of MP4 MKV MOV files of various lengths, resolutions, audio formats, audio and image quality.What should I convert them to to have most playback performance without quality loss? My ...
0
votes
0answers
22 views

If the desktop under a certain user becomes slow, how to improve performance?

I am using Arch Linux, and the default username has become slow and unresponsive over time. I created a new user to see it was fast and as good as new. I don't want to delete the default user, as a ...
1
vote
2answers
76 views

hard drive - How type of I/O access influences access time?

I am trying to better understand how the type of I/O access influences the access time. Can a conventional HDD perform both random and sequential access ? If so why would you want to keep provisions ...
0
votes
0answers
27 views

Tableau slow connection to data source

We are having continued problems with our Tableau Servers... We have two servers tableau1 & tableau2 tableau1 is a proof of concept on a slow pc acting as a server. tableau2 is a server managed ...
0
votes
0answers
13 views

How does collectl summarize its numbers?

I'm analyzing the processor usage of a system over the course of 24 hours. I have collectl set to record sysT and usrT every five seconds, but for some long-running processes this results in thousands ...
0
votes
1answer
22 views

Raid0 Test For Multiple Partitions On A Single Drive Gave Better Sequential Write Speeds That Expected

Obviously running raid0 on partitions of a single drive will result in a performance decrease; data has to be written/read multiple times to/from the same drive, and because of how it's spread the ...
1
vote
0answers
44 views

What is Prime95 benchmarking?

I've recently had to benchmark the CPU performance of a variety of operating systems on identical machines. I've been using the 'benchmark' functionality of Prime95 to obtain a consistent test. I've ...
2
votes
1answer
34 views

How crucial is CPU clock speed/frequency in software performance? [closed]

People say that when you aren't getting the best performance, overclock your CPU. On the other hand, clock speed doesn't improve microarchitecture, and speed without efficiency is not truly as fast as ...
9
votes
2answers
1k views

Why does unequal amounts of RAM in each slot decrease performance?

This page describes the RAM specifications for many of the MacBook laptops. In the section for my laptop (13" Pro Late 2011), it says: Additional Notes: For best performance, fill both memory ...
1
vote
2answers
41 views

How to prevent explorer.exe to get laggy when some network paths are not available?

I have set up some network path in Windows 8.1 which can only be accessed when I'm connected to a VPN. I don't want to re-map/add them every time when I connect to the VPN (I do this quite often). If ...
0
votes
2answers
57 views

Periodic FPS drops in games, regardless of graphis card

When I play recent 3D games (Battlefield 3 & 4, Tomb Raider, Saints Row 3 & 4, etc.) I experience periodic FPS drops, e.g. in Battlefield 3 from the average of around 70-80 fps to 20-30 fps; ...
-2
votes
1answer
27 views

Experiencing lag during games despite meeting system requirements..help please

Here are my computer specs Mainboard: ASRock M3N78D CPU: AMD Phenom II X4 960T Video card: GTX 560 RAM: 4G Hard Disk: Samsung HD501LJ XCOM Enemy Within recommended requirements CPU: Core 2 Quad ...
0
votes
0answers
104 views

HP 15-r007tx running too slow

Just two days before I bought HP 15-r007tx notebook. It came with free DOS os. I installed windows 8.1 pro in it. From the first use after installing windows 8, it's running slow with very slow ...
0
votes
0answers
55 views

iTerm2 performance vs Terminal.app

I prefer iTerm2 for its features, but Terminal.app outperforms it in terms of responsiveness. I mostly notice this in Vim: iTerm gets choppy during scrolling and/or rapid cursor movement. Is there ...
0
votes
0answers
29 views

Two harddisks compared in performance/speed

I've placed a new harddisk in my laptop and did some performance tests with 'CristalDiskMark'. Here are the results: First harddisk with Windows 8.1 on C partition: And the second: So overall ...