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

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0
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4 views

Weird performance differences on similar workstation cpus

I'm running some scientific simulation code on a cluster which has nodes containing Intel Xeon E5-2630 v3 cpus. The cluster uses CentOS 7.2.1511, the gcc version I'm using is 5.1.0, and the assembler ...
0
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0answers
4 views

y700 on battery performance really drops after 30min

I got a Lenovo Y700 laptop and it's great! The only problem that I got is when I game on battery the performance are good (all battery saving are off) but about after 30m there is a huge frame drop, I ...
-1
votes
0answers
8 views

GZIP is not enabled - Load balancer or web server - PageSpeed insights bug?

Is your web pages fast on all devices? Try Google's PageSpeed Insights. How well your site works across mobile and desktop devices? Think with Google. Now, most of these scanning site, looked ...
0
votes
0answers
7 views

Outlook + iCloud/iPhone + giga mailboxes - opinions please

I have someone asking me for a fonctional setup under these conditions Microsoft Outlook Google Apps contacts/email/calendar 6-7 PST files for a total of ~45-50 Gb Syncing via iCloud to iPhone ...
2
votes
1answer
388 views

Test RAID array read write speeds from boot disk

I have a VMware ESXi server with a local RAID 5 datastore formatted with VMFS. The RAID controller is a DELL PERC H710 hardware controller and the server is an R620. I get abysmal write speeds, ...
0
votes
3answers
52 views

why only download is slow but upload is fast on my computer?

I'm confused about a network problem on my PC. It hasn't had a problem before but suddenly its happening often since a week ago. I tested the Internet speed at speedtest.net. My environment is: OS: ...
0
votes
0answers
24 views

Is it worth it for the average user to upgrade their computer every 18 months? [on hold]

I hear that every 18 months computers get twice as powerful, but looking at my computer from 2010 and a new computer from 2016, (that's 4 18-month periods, meaning 8 times more powerful) I really don'...
11
votes
5answers
5k views

Visual Studio Performance problems when writing XAML

I've dealt with Visual Studio performing terrible for too long now. Now I'm past the point of being emotionally broken and need help. I can't figure out how to fix the issue of the Visual Studio ...
6
votes
2answers
1k views

Benchmarks relevant for a Visual Studio .NET development workstation

I am developing a system with Windows 7 64-bit, Visual Studio and Sharepoint on a virtual workstation on some kind of VMWare server. The system is painfully slow, with Visual Studio lagging behind ...
1
vote
1answer
940 views

VMware Workstation has terrible performance on local hard disk

I'm working on vmware image files. My computer always load hard disk and vmware works very slow at the same time. Guest OS: Windows XP SP2 Host OS: Windows XP SP2 Is there any way can improve the ...
0
votes
2answers
31 views

Windows 10 - MSTSC UI has very bad performance

About a month ago I reinstalled my PC at work and put Windows 10 on it after I received my new SSD. While the system itself runs very smooth, the MSTSC UI (the connection dialog) is pretty much ...
0
votes
1answer
47 views

Old Toshiba Laptop Windows 7 AMD Cpu Upgrade

I want to be able to upgrade my Toshiba laptop from a C-50 dual core CPU to something better around say 2.50Ghz or at least 2Ghz. I don't know the exact socket of the CPU but I think that it is a ...
1
vote
0answers
50 views

SSD encryption the proper way

When encrypting devices it is always recommended to fill it with random data first, or it would become evident that the drive is encrypted and how much encrypted data there is. I've read that on an ...
2
votes
1answer
125 views

Why do I get better performance on VMWare when I enable all cpus along with adding cpulimit?

I'm curious but at the same time also would like to share my findings of the increased gaming performance in VMWare by enabling all virtual cpus and limiting the VMWare process with cpulimit (...
-2
votes
0answers
36 views

What CPU manufacturers really mean by “1-4Ghz Processor”

Recently I found out that what's known as the crystal oscillator is responsible for setting clock cycles. To my understanding this oscillator is found on the motherboard, not the CPU. My first ...
0
votes
1answer
29 views

Very slow random read of SSD on desktop (9,000 IOPS) but normal on laptop

I just purchased a new Plextor M6V 512GB SSD and am experiencing very low 4K Q32 read speed. 36 MB/s = ~9,000 IOPS which is 10 times as low as specification value. Why could it be? Motherboard: ASUS ...
-2
votes
0answers
36 views

Should I upgrade my custom made and optimized workstation to windows 10? [closed]

I actually purchased a highly specialized and custom made workstation 2 weeks ago. It is very optimized (bios etc) and the specifications are very high and includes 2 terrabyte ssd. My question is, ...
0
votes
2answers
108 views

The PC runs very slow even after a clean format

Operating System: Microsoft Windows 8.1 Pro [Version 6.3.9600] My System Info My PC is running very slowly and sometimes it freezes. So, I did some Defragment Tests on the HDD's and did some ...
0
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0answers
74 views

Slow boot on Fedora 24

Last week, I installed Fedora 24. Previously, on the same computer, I was using Fedora 22 (Fedora 24 is a clean installation, not a package upgrade). What surprised me is that Fedora 24 is booting ...
18
votes
6answers
24k views

Super slow opening my downloads folder

I have an exe file in my download folder that I half downloaded through utorrent (it's not piracy, a legit file from people who use bittorrent to distribute large files). I think I tried to open it ...
3
votes
2answers
4k views

Very slow volume expand on Synology ds2413+

I've posted this elsewhere on the internet aswell, and will obviously reply in both places if a proper solution is found. I am attempting to expand SHR volumne (2x4TB, 1x2TB) with additional 4TB ...
4
votes
2answers
140 views

Currently well suited SATA2-SSDs for Laptop usage [closed]

I am looking for a solid state drive for my laptop. My dillemma: I have been waiting for the new Intel SSDs since Q3/2010, as I've heard they should be better and cheaper, due to lower memory ...
0
votes
2answers
19 views

Why Is My Speed Showing Faster Than Max Speed

I am converting .mkv files to .mp4 files using handbrake. I understand that this program is a total resource hog, but it is the best one I have found that can batch convert. Regardless of all of ...
0
votes
0answers
29 views

What do more cores specifically do? [duplicate]

I am running Windows 8 on a custom built pc, where the processor is currently the Intel Pentium G3258 (2 CPUs) ~3.2GHz and I have overclocked it to run at 3.7GHz, but the performance I need is ...
5
votes
1answer
22k views

Are 6th-generation Intel processors slower than 4th-generation?

I'm looking at building a computer for my brother. Back when I built my own I used a 4th-gen CPU. My thinking is "well he should obviously have the latest generation because they say they're always ...
0
votes
1answer
19 views

Plugging in ethernet cable slows down wireless

I have a D2200D DSL router provided by Frontier. The router connection has been failing with the DSL link light solid green, Internet link light blue. Failures show up as computer wired and wireless ...
0
votes
0answers
15 views

dd file copy uploading to server is fast, downloading image back to local machine is slow

I've used dd to copy a hard drive on one server to the samba share on another server. The speed was between 30-60 MB/s, about what I'd expect. The connection is a dedicated gigabit line for each image....
1
vote
4answers
5k 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, lags....
0
votes
1answer
29 views

How to know the device driver which is causing the computer to be sluggish (Windows)?

My computer suddenly became sluggish. Task manager didn't help. I had lots of memory (computer has 16GB), SSD and lots of free space. CPU% was less than 5%. The last change that happened before the ...
-1
votes
1answer
150 views

High CPU Usage, system and svchost [duplicate]

My pc has been experience lag ever since it came back from a fan upgrade. Now i noticed that my cpu usage spikes from 10% to 80% and back in seconds, i see that svchost.exe is consuming 25% and system ...
4
votes
3answers
7k views

Slow startup on Windows 7 Home Premium laptop

My Dell Inspiron 1545 running Windows 7 has reached the point where its startup is painfully slow. Normal operating speed is still very good, however. I keep getting nagged by startup options, like a ...
57
votes
13answers
61k views

Top causes of slow ssh logins

I'd love for one of you smart and helpful folks to post a list of common causes of delays during an ssh login. Specifically, there are 2 spots where I see a range from instantaneous to multi-second ...
0
votes
1answer
121 views

There are lots of “Core i” CPUs, but Dell only offers a few — who builds systems with the others? [closed]

Passmark shows many varieties of Core i3, i5, and i7 CPUs. Some of them, even at similar prices, are much faster than others. However Dell only offers a few options, and they're not the fast ones. ...
8
votes
2answers
4k views

Is the L3 cache shared by all cores for a Sandy-Bridge E Xeon CPU?

In a related question I asked about the benefit of a dual-CPU system in terms of doubling the L3 cache. However, I have noticed that the Xeon E5-2600 series of CPU's has exactly 2.5 MB of L3 cache ...
1
vote
3answers
37 views

Win 7 PC with i7 After SSD install, extremely slow “paint of green bar” on Directory open, performance issue

I have 16G ram and 2T hard drive, then added 120G Samsung SSD as new boot C: (had shop do it) and 2 things happened. The performance was much better for Win boot, but sometimes on opening a drive or ...
0
votes
1answer
32 views

Added new RAM that made computer slow, removed it and it's still slow

I have Windows 7 32-bit and a Kingston DDR2 SDRAM DDR2-800 400 MHz 2GB RAM module. The motherboard has two RAM slots so I added a new 2GB RAM module. This one was Kingston as well, and if I remember ...
0
votes
0answers
19 views

Windows 10 boot loader appears twice

My Windows 10 Pc was working fine, when suddenly I encountered this problem. When I boot my pc on, the boot-loader appears twice, first it finishes and then it comes again, and this time its very long....
40
votes
2answers
18k views

Is there a way to identify the busy (CPU-consuming) tab in Firefox? [duplicate]

Sometimes there's a nasty, guilty, CPU-hogging tab in Firefox that's maxing one of my CPU cores and making the whole browser sluggish. I'd like to find it and close it. Sometimes I get lucky, but ...
0
votes
2answers
42 views

Nvidia GT 540M runs smoothly then performances drop

I'm using a 5 years old ASUS K53SV with Win 7 using a Nvidia GT540M GPU. Recently, especially when playing games, everything runs smoothly, but after a while, usually a few minutes, there's a half ...
0
votes
2answers
49 views

More computing bang for your buck on Linux? [closed]

I have both a Linux box (running Debian) and a powerful Windows desktop running XP. At work I have a Windows 8 machine. I notice that my Linux box, even though it is just a little Zotac seems to ...
1
vote
2answers
32 views

Windows Server Storage Spaces tier write-back cache, how to configure threshold that determines if write is performed on write-back cache?

The Storage Spaces feature included with Windows Server 2012 and the upcoming Windows Server 2016 consists of a virtual disk. In a tiered storage deployment a write-back cache is created (the default ...
1
vote
3answers
4k views

CPU usage 99% constantly

My computer is running windows 8, and suddenly started running slowly. When I open the task manager, it tells me that the CPU is using 99% - sometimes the disk usages jumps up as well. The strange ...
1
vote
5answers
186 views

Why doesn't a SSD improve the speed of running applications compared to a HDD?

In articles/forums about pc gaming I always see people saying how Solid State Drives only make games load faster at startup (of the applciation) than they would with a Hard Disk Drive, and that an SSD ...
0
votes
0answers
21 views

Is it possible to run Adobe CS5 mac on a pc?

In college I purchased a copy of Adobe Creative Suite 5 Master Collection for mac, unfortunately I had to upgrade computers and now have a pc. It said the license can't be transferred or sold and ...
-1
votes
2answers
34 views

Is using GPU instead of CPU “even if it is slower” possible?

i understand that the GPU and the CPU are different. but whenever this question is asked the answer is the GPU is "many slower processors" while the CPU "fewer faster processors", does that mean that ...
8
votes
4answers
6k views

Is there a way to know what program slows down startup?

Is there a program that can be installed to be able to know what program takes time to load at startup of Windows?
0
votes
1answer
13 views

How to check AES speed on Ubuntu?

Is there any way to check how fast an Ubuntu 16.04 machine can do AES ciphering? I'm not interesting in comparing AES levels, but am just curious to see the cost quantified in some way. Since it's ...
22
votes
4answers
45k views

What is the cause of a high CPU usage of 'system and compressed memory' in Windows 10?

There is an observation to be made for Windows 10 on my laptop running with 24G memory available, and 2.5G used. There is no 'memory pressure'. Other questions have looked at memory consumption (...
0
votes
0answers
16 views

Follow up, extreme sluggishness on machine doing IO

This is a follow up to a previous question. After more investigation it appears that I have a slightly different problem, whenever I do any volume of disk based activity like copying files or backing ...
5
votes
2answers
897 views

Poor TCP performance over single connection, but not over multiple?

On two separate Dell machines, I seem to be having an annoying performance problem when downloading over a single connection. The one I've just tested this all on is a Dell Dimension 3000, XP SP3, P4 ...