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

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2
votes
2answers
181 views

Windows 7 / SMB2 slow network copy performance

Troubleshooting a tricky performance problem and wondering if this behavior is normal/expected. This seems to be related to SMB2, as switching to SMB1 resolves things. The question is whether this is ...
0
votes
0answers
58 views

Delphi XE2 runs very slow in VirtualBox with Windows 8.1 installed

While the whole guest Windows runs normal, Delphi XE2 is really slow, especially with code completion. And CPU utilization is near 50% though the Delphi itself does not get more than 10% during ...
1
vote
1answer
40 views

Windows Surface USB Recovery Drive

Ok so my friend lost her password to her tab and she cannot log back in to her tab, and being the leet haxor that I am, I know that the only way to refresh her tab and keep all her important course ...
0
votes
0answers
28 views

Browser downloads are extremely slow

I'm trying to download ProTeXt-3.1.3-060313.exe. When I use my browsers to download it, it downloads about 20KB/s. Than I found torrent file of the same program. I'm downloading it with 1.7MB/s now. ...
0
votes
2answers
53 views

Computer “Server”

so at home we had the idea of instead of buying 3 different pc's we would somehow create a "server" for the computers where a cable would come to our screens and keyboard and mouses, so the actual pc ...
4
votes
5answers
136 views

Is 1GB RAM so little?

I recently upgraded my old computer from Windows XP to Windows 7, and my computer became unbelievably slow. This is the hardware: Intel Pentium 4, 3.2 GHz 1GB RAM Radeon X800 GTO By unbelievably ...
0
votes
1answer
120 views

WD my cloud 4th is Super Slow

I am using a WD my cloud 4Tb and I have read other posts about users complaining about getting only 10Mb per second. My problem is that I am getting about 100kb/s to transfer a 125gb iPhoto library. ...
0
votes
0answers
28 views

What is the best order of item fields in for different group with various template zabbix?

In my company, we have about 30 servers which i monitor them by zabbix. Some of them are Windows base OS and some others are Linux (CentOS, Debian, Ubuntu) OS base. Basically i create a Template, ...
0
votes
1answer
35 views

Choosing processors for terminal server [closed]

I am going to buy a server for terminal sessions. It must be able to serve about 500 concurrent sessions without any significant impact on performance. Each session will run a quiet simple app with ...
5
votes
2answers
81 views

Would an array of SSD drives be able to succesfully substitute the system memory?

I watched a few videos trying to answer this. This video (youtube.com/watch?v=eULFf6F5Ri8) shows a bunch of guys stacking 24 SSD's reaching a peak of around 2GBps r/w. That's under the limit of the ...
50
votes
2answers
2k views

Why is piping 'dd' through gzip so much faster than a direct copy?

I wanted to backup a path from a computer in my network to another computer in the same network over a 100 Mbit/s line. For this I did dd if=/local/path ...
0
votes
1answer
43 views

How do I determine my bottleneck when executing unit tests?

I've a very large solution, with 11K+ unit tests, and on my desktop it takes about 30 minutes to run them; on my laptop it takes 60 minutes. NOTE: I've already swapped out the HDD for SSD and it ...
1
vote
3answers
99 views

Do I need Readyboost and page file if I have lots of free RAM?

I have 12 GB RAM installed in my laptop. I have currently both page file and ready boost disabled. Most of the time my RAM usage are under 6 GB. So, I still have 6 GB RAM all the time. Considering ...
0
votes
0answers
69 views

How to get a even higher Fan RPM than “high” with a third party tool or else

Background My laptop gets very hot after its 6 years. I cleaned everything with pressure air and new heat sink, but it didn't helped much. Then, I realized that the built in fan control isn't anymore ...
0
votes
1answer
15 views

Improve backup performance by watching files added/modified in given directories?

I use SyncbackSE on Windows to back up files between two hard drives daily. Every time the application starts, it scans every single file in the directories that it watches before copying files that ...
0
votes
1answer
71 views

SSD Performance Dropping over time, is this expected behavior?

In reference to this, I found the below in an ad: I recently bought these drives a few weeks ago and then saw his picture. Do all SSDs suffer from such substantial performance drops over time and ...
-1
votes
2answers
151 views

RAMDisk faster than SSD? [closed]

The answer seems to be obvious, but I've been going back & forth with ASUS and Crucial support on this and have been getting differing opinions. Thought I'd bring it to Stack for a solid answer. ...
0
votes
0answers
16 views

Which disk IO operations are typically executed when working with flat preallocated VMDK

I usually pre-allocate whole disk space when creating my VMs and usually as flat single files. Since I'd like to move my VMDK to a different drive than my primary I would like to put it on one that ...
0
votes
2answers
78 views

Increase performance of Samsung 830 256GB SSD

I have a Samsung 830 SSD in my notebook connected to a SATA interface. This is a rather old HP notebook nc8430 which means SATA is SATA I and not II or even III that disk supports. But SATA I still ...
0
votes
0answers
38 views

Cannot download files on Windows 8.1

I can not download files in Windows 8.1. First, downlaod speed decreases to 10-20KB/s. Than it drops to zero. I think it is about security settings. But I could not detect which setting cause this. ...
0
votes
0answers
44 views

Hard drive: more RPM or higher capacity, which is faster?

I need a relatively fast hard drive (random access). For the same amount of money, I could buy WE Velociraptor (250GB, 10kRPM) or WD Red (1TB, 5400? RPM). SSDs or 15kRPM drives are too expensive even ...
2
votes
0answers
133 views

HDD very slow performance after full copy from SSD

The PC: Core i7-4770, 16GB RAM. There are 120GB SSD and 1TB HDD (new without any bads). On the SSD I had Windows 8.1 installed with all other stuff. Someday all programs exceeded 120GB limit and I ...
-4
votes
1answer
35 views

How fast does USB 3.0 perform?

How fast does USB 3.0 actually perform? I remember from quite a bit of experience that USB 2.0, while fast on paper, never in any practical situation hit those speeds in reality (the "slower" FireWire ...
0
votes
1answer
25 views

CDN vs Server upgrade?

Does a CDN help alleviate server load? My current server is getting overloaded and I am contemplating between using CDN vs just upgrading the server. I am under the impression that CDN will take most ...
1
vote
2answers
49 views

Thinkpad Edge E430 slowed down to a crawl

We bought 2 thinkpad E430 systems in September 2012. They were running Windows 7 pretty smooth as the time but as it stands today, my dad's thinkpad has slowed down to a crawl. Clicking on the start ...
2
votes
1answer
52 views

Optimal cluster size for random I/O

I'm specifically interested in the answer for NAND storage (SD cards, memory sticks). I have a Windows 7 laptop where I run 2 VM's inside VMWare, as well as multiple programs in the host OS. VM disk ...
0
votes
0answers
51 views

Advice on SSD performance bottleneck needed

I guess I need some advanced advice on SSD, SATA, in/out limits etc. I'm programming a video installation where I continously read and write quite a lot of data: To the first SSD, drive A, I write ...
0
votes
0answers
27 views

SQL 2012 in Hyper-V. Why are my queries slow until I drop and create any spatial index?

I have a spatial application that queries several tables (layers) each time the user pans/zooms the map. When I moved the SQL server into Hyper-V, I noticed that there was a several second delay when ...
0
votes
0answers
35 views

Does EnhanceIO supports TRIM on SSD?

Does EnhanceIO supports TRIM on SSD? Or it has own implementation of similar technology?
2
votes
1answer
79 views

SSD Wear-Leveling and Fragmentation

I'm trying to understand the effects of wear-leveling on fragmentation in SSD. To be more specific, when the SSD controller decides to allocate a noncontiguous block to a file because of ...
1
vote
2answers
104 views

Performance Issue with FB2.5 + Windows Server + Specific Hardware (DELL servers?)

I have a relatively small database (6GB) and my application can access it quickly when using Firebird 2.1 or Firebird 2.5 on a non-server version of windows. But if I try to use Firebird 2.5 on a ...
4
votes
1answer
193 views

What happens if I use RAM of a faster speed than the CPU supports?

Looking at the Intel E3-1230v2 CPU, under Memory types it says "DDR3-1333/1600". My question is, in what way does the CPU limit the RAM speed? What would happen if I put in a DDR3-2133 RAM chip ...
0
votes
0answers
43 views

Windows 7 offline files - Windows does not let me access network share due to “slow connection”

I'm using the "offline files" features in Windows 7 to have important files/folders from our network servers with me when traveling. I noticed the following problem: I am travelling and try to ...
0
votes
0answers
30 views

How to debug an extremely slow Windows 8.1 installation [duplicate]

A week or so ago, my computer with Windows 8.1 installed slowed down significantly. It wasn't a gradual slow down, but I do not recall any events (new installations or similar) that accompanied it. ...
1
vote
0answers
77 views

Slow write speed on external SSD

I am experiencing slow write speeds using an external Inatek USB 3.0 2.5" External Enclosure (UASP supported) with a Samsung 840 120GB drive. I just started using this setup on a late 2013 iMac as an ...
0
votes
1answer
40 views

Benchmark performance 30% speedup in mains over battery operation?

This observation arose as I was evaluating the running time efficiency of various implementations of a prime sieve algorithm. The surprise was finding that differences between the best algorithms was ...
0
votes
0answers
35 views

Why does the same RAM chip benchmark 2x faster on Intel CPUs?

Compare memorybenchmark.net's benchmarks for the "Kingston KHX2133C11D3/4GX 4GB" chip in the read uncached ddr3 intel vs read uncached ddr amd benchmarks. The Intel speed is listed at 14,881 MB/s , ...
0
votes
0answers
45 views

Does a full SSD really have poor performance? [duplicate]

I've been reading this question about disk issues and am interested in gaoithe's answer for Does the disk usage really go up when free space declines? If so, why? I can see why this can ...
0
votes
0answers
101 views

Windows server 2012 becomes slow

I have a server with following configurations. This is new IBM X3630 M4 server established before one month. Processor : Quad core Xeon E5-2620v2 single processor RAM : 8 GB NIC : 2x 1GbE HDD : ...
4
votes
1answer
51 views

When is SSD the right choice for a performance boost

I'm curious to know if there are any stats I could check in a performance/stats service like munin that would give me a feel for whether or not moving to ssd would have a significant performance ...
0
votes
1answer
115 views

Windows 8.1 takes 10 seconds to open file explorer from taskbar (not from start menu)

I open "This PC", and right click to to "Pin this program to taskbar". Now there's a shortcut to explorer in my taskbar, but when i click it, it takes around 10 seconds before the explorer window is ...
0
votes
3answers
43 views

windows wasn't turned off need time to warm up in the morning

Since I have a lot of application need to start and use, I usually don't turned off my PC in office after work. The problem is that everything I turn on the monitor and login my PC, it takes me a ...
1
vote
1answer
128 views

Horrible OpenGL performance on Intel HD Graphics laptop

I’ve been trying to run the ReallySlick screensavers on a laptop for a while now, but some of them do not work (they crash), and the ones that do work have terrible performance and are uselessly slow. ...
0
votes
1answer
30 views

How to troubleshoot under-performing hardware combination?

I recently bought a secondhand PC to use as a Home Theatre PC. It is mostly used for streaming online video like Netflix and Youtube but also runs Plex Media Server. On paper the hardware specs ...
2
votes
0answers
46 views

Show dial up connection status in Task Manager

In Windows 8.1, Task Manager shows Wi-Fi, Disk, CPU usage graph in Performance tab. But, it doesn't shows usage of a dial up internet connection. How can I add dial up stats in task manager. Here are ...
0
votes
0answers
87 views

xbootmgr failing to run a trace, couldn't find a kernel logger

I am attempting to run a boot trace on a computer that is slow to log in using xbootmgr. It is a Windows 7 Professional computer that is on a domain. Based on the guide on this website: ...
1
vote
1answer
26 views

How to know the size of page frame used by my OS?

How to know the size of page frame used by my OS ? This could be useful for some optimizations when I code. (Allocate big buffer that fit in a page frame for example). Page frame is determined by ...
0
votes
2answers
46 views

Office network bottleneck

At work our IP is the devil Comcast. When I do a speedtest I get a jump of upwards of 20Mbs and then it slowly goes down to average out at around 10Mbs. The upload speed stays at stead 2-3Mbs. My ping ...
0
votes
2answers
114 views

Increase Performance by utilizing RAM instead of swap (Windows 8) [duplicate]

My computer is pretty fast, but I feel it may be getting slowed down by putting things in swap which would do better in RAM. I have 16 GB of ram, and even in conditions where only around 3 GB is used, ...
1
vote
1answer
291 views

High System process CPU usage (Queue/Dequeue+TrimAlllSystemPagableMemory)

I have ASUS G75VX laptop with latest Windows 8.1 (not Pro), all updates installed. Task manager says it's the System process that takes my entire single CPU. When this high single CPU saturation ...