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

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0
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0answers
17 views

Hard Drive R/W Speeds are Limited to about 3Mb/s

My mom's Acer laptop is super slow. However, when I open the task manager, the limiting factor of its performance seems to be the hard drive, which is usually maxed out at 100%, though only operating ...
0
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0answers
20 views

How to diagnose slow (only for awhile after start) Windows 7 machine?

I've got a Lenovo Ideapad, with a dual core Atom processor and Windows 7 that exhibits some odd behaviour. It's insanely slow right after boot. The disk drive will be lit up solid and grinding away ...
1
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0answers
31 views

svchost.exe (LocalServiceNetworkRestricted) uses excessive RAM on startup

I'm running Windows 8.1 on a Lenovo Ideapad Yoga 13 with a Core i5 CPU and 4 GB of RAM that I bought July of 2014. Though I have had a good experience, there's one problem, as you can see from the ...
0
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0answers
21 views

Gaming write-to-disk amount

I'm wondering (and I can't seem to find any relevant information) how much does gaming specifically use in disk writing? I know "gaming" is quite generic, but I'm comparing this to classic desktop ...
-1
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3answers
46 views

Will I perceive speed improvement with more ram?

I have a Toshiba Satellite L855-S5240. The current specs are, Intel® Core™ i5-2450M Processor2.5 GHz, (3.1 GHz with Turbo Boost Technology 2.0), 3MB L3 Cache Mobile Intel® HM76 Express ...
0
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0answers
40 views

How can I improve the performance of my computer?

I have had my computer for a long time now and even though I try to keep things clean, it seems relatively slow. Particularly, the windowing system seems to lag frequently. Windows fade in slowly ...
0
votes
1answer
28 views

Black screen after resume from hibernate

Here's my config: Windows 7 Ultimate (64-bit) i5 + 8GB (1600MHz) Samsung 850 Pro (256GB) My disk is giving me around 540MB/sec read speed, so I get a resume time of about 15-17 seconds which is ...
0
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2answers
47 views

Does disk partitioning impact performance? [duplicate]

I will soon buy a 4 TB HDD and I am wondering if I should split it since it has so much space. My question is: will doing this affect my computer's performance? If I would keep everything in one disk, ...
0
votes
1answer
25 views

Arch Linux extremelly slow and laggy

I was looking for an distribution that has Android Studio built in and came across 'BBQLinux'. The Android Studio works, but it's extremelly slow, to the point where it's unusable. I downloaded the ...
2
votes
3answers
35 views

What does the minimum spec mean in regards to CPU clock speed

Most software provide a minimum and/or recommended spec of hardware in order to the software. Within this list, we're usually informed of a clock speed for the CPU. For example, Visual Studio has, as ...
0
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0answers
12 views

Speed with multi-cpu motherboard

I'm looking at building a dual-cpu system, but I was wondering if there were any concerns with bottlenecks that I should be aware of since data is going to two different places now. I know that each ...
3
votes
1answer
106 views
+150

Evaluate memory throughput

I use memtest86+ since years to evaluate memory throughput, allowing me to be sure everything is ok before putting a server in action. With one motherboard I can't have this information: The ...
-2
votes
1answer
29 views

Compare the performance and reliability of two hard disk drives [closed]

I currently have two basic hard disk drives from brands I don’t even recall. I just bought a new SSD to be the replacement of one of the two current ones. The two hard disk drives I currently ...
0
votes
0answers
15 views

Gateway NV5398U hard drive very slow to respond after upgrade from Windows 7 to Windows 8.1

This old but fully functional notebook PC worked as expected with Windows 7, just as fast (or slow, rather) as it was when new. After installing Windows 8.1, the graphics drivers were manually ...
1
vote
0answers
59 views

Samsung 830 256GB SSD dying?

I have a decent fast Computer (i7, 32 GB RAM, SSD, ...), which worked flawlessly for a year now, but about over a week ago the access rates just went bananas (well, very slow like on HDDs). Just some ...
-1
votes
0answers
23 views

Laptop stops charging after a few minutes

I'm using a Gateway laptop, the machine works fine on battery power. As soon as I plugin the charger it charges the battery for few minutes before the system show it as disconnected even though the ...
0
votes
3answers
78 views

Why is my Acer Aspire E15 running slower when plugged in than on battery?

I am working on an Acer Aspire E15 (ES1-511-C590) running Windows 8.1 X64 with all the latest patches. It is running significantly slower while plugged in than when running off battery. Yes, this is ...
0
votes
0answers
35 views

Use two different connections: one exclusively for download and the other for upload: possible? [duplicate]

I hope you can help me with this dilemma. I have two different connections, one is via router/ethernet, the other one is mobile: the first one has a very good download speed, but lacks of upload ...
0
votes
3answers
55 views

What factors other than clock speed influence the performance of a CPU? [duplicate]

Having seen various people test powerful emulators on their computers, I have come to surprise hearing about how one CPU can have triple the clock speed but still have worse single-threaded ...
-1
votes
0answers
27 views

How much faster can single-threaded performance get with CPUs? [closed]

I keep hearing people say that single-threaded performance will reach a physical limit one day, and from which there's no way it could get faster after a certain point is reached. How far are we ...
0
votes
1answer
27 views

Changing windows 8 appearance to Mac [closed]

I see many third party themes are available to change the appearance of Windows 8 to look like Mac OS. I want to know, after applying such theme, does it make my machine slow?
25
votes
8answers
3k views

Can a massive MySQL data import on an SSD damage it?

I have to import quite a lot of data (~100 million rows, ~100 times) into a MySQL database. Currently, it is stored on my hard disk drive, and the bottleneck of my import seems to be the hard disk ...
0
votes
4answers
64 views

Random spikes to 100% CPU lasting several minutes, (intervals, duration, processes) W7 PRO Dell E6400

For the last month or so I'm plagued with often, yet unexplainable spikes to 100% CPU load. Usually then Task Manager shows one or two processes taking 50%+ of CPU (not always the same: svchost, ...
1
vote
1answer
13 views

VMware vSphere / ESXi 5.5 recommended guest system architecture

I am currently setting um VMware vSphere / ESXi 5.5 on a DellPowerEdge2900 and since it's an older server the following question came to my mind: Considering performance should I install guest ...
155
votes
9answers
18k views

Why does emptying disk space speed up computers?

I have been looking to a bunch of videos and I now understand a bit better how computers work. I understand a bit better as well what is the RAM, the volatile and non-volatile memories or the process ...
0
votes
1answer
53 views

Computer super slow and laggy, while resources are not being used

Ok so I have a custom built PC; specs below: CPU: Intel Core i7-4700 Motherboard: MSI Z97-G55 RAM: 16GB DDR3 Video Card: PNY nVidia GTX 770 Primary Hard Disk: Samsung 850 Evo Primary OS: Windows 8.1 ...
1
vote
1answer
32 views

Arch Linux insane memory usage

I just installed Arch Linux and set it pretty much up how I want it to be. At the moment XFCE4 with LighDM, Firefox and a few other little applications are running. I wanted to see whats going on in ...
2
votes
2answers
86 views

Windows XP (32-bit) system with 8GB RAM, will I still get dual-channel benefit?

I am running a legacy Windows XP 32-bit PC (not for internet use of course). It has 2x4GB RAM which operates in dual-channel mode. Obviously Windows XP can only use 4GB RAM. One could argue the ...
-1
votes
0answers
55 views

Disk transfer rate suddenly became extremely slow Windows 8.1

I've been running Windows 8.1 x64 on my AMD Phenom PC for a long time without serious problems, and today my HDD transfer rate got ridiculously slow. The Seagate Barracuda 7200 1TB HDD was bought ...
2
votes
1answer
43 views

Ethernet switch throughput

I'm not a network/hardware guy so please bear with me if I'm using the wrong vernacular in my question: My office recently upgraded our Internet from 50/10 Mbps to 150/20 Mbps. For this upgrade, we ...
0
votes
1answer
27 views

Shared hosting: how do they estimate server CPU usage? [closed]

I'm using several shared hosting services and wondered many times: how do they calculate those "CPU seconds"? For example one of those limiting me with 300,000 seconds/month, 10,000 seconds/24h and ...
0
votes
1answer
50 views

Laptop running too slow lately

I bought my laptop in late 2013 with the following configuration: Motherboard / model: NP-530U3C Intel(R) Core(TM) i3-3217U CPU @ 1.80GHz RAM: 4GB DDR3 Hard drive: 500 GB 5400 RPM + 24GB SSD OS: ...
0
votes
2answers
81 views

Going silent: will an SSD with a newer but 'slower' CPU run as fast? [closed]

I currently have a relatively old (2009) Shuttle XPC with an AMD Phenom X2 550 3.10GHz and 2 SATA HDD drives. I use it as my work computer, usually running a couple of browsers, XAMPP, 2 or 3 ...
0
votes
0answers
20 views

How can I determine whether the disk read and write speeds on Windows 8 task manager are normal?

On Task Manager, when I start a heavy application and monitor its start on Task Manager, my disk's read and write speeds remain between 1MB/s and 2MB/s with some peaks at 10MB/s in rare cases. ...
0
votes
0answers
21 views

Internet speed spiking/going extremely slow on my pc for on ethernet for no reason?

guys my connection is spiking like crazy and only on my pc, it's been happening for days now and i have no clue why, on win8 and win10 speedtests like this when usually its something like this ...
0
votes
0answers
38 views

Mismatched upload vs. download speeds between two computers on the same home network

I'm busy setting up my Plex server on a separate Wi-Fi router and I'm testing the transfer speeds between two MacBook Pros. It's just got me baffled because I've come across something weird. Not ...
5
votes
2answers
154 views

Choppy CSS3 animations in all browsers on yoga pro 2

This might seem as a broad question because I don't know where to start. When I compare the same CSS3 animations between my old Lenovo Yoga 13 and my new Lenovo Yoga 2 pro, my old laptop performs much ...
1
vote
0answers
44 views

WPA shows NIC driver DPC fragment running for 232 milliseconds

I'm stress testing my UDP proxy on a machine with 8 logical CPUs. At around 14 thousand UDP clients, one of the CPUs (CPU 4) starts spiking and UDP throughput (as shown by Task Manager) plummets to ...
0
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0answers
16 views

RHEL upgrade makes AIDE to run slower

ALL, For our product we upgraded from RHEL 5 to RHEL 6. Unfortunately AIDE tool that we use for intrusion detection started to slow down it's scan for about 2-2.5 times. I checked and the ...
0
votes
1answer
33 views

CPU Load + Frequency per core in linux terminal?

I am doing scientific computing and I need to keep an eye on the cpu frequency and load of each core (there are 2 cores, on Ubuntu 14.04 w/ Gnome3). I can see the frequency with this bash script: ...
0
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0answers
11 views

Windows Server: Statistics

I have a small home server running Server 2012 R2. I would like to be able to view general statistics about its performance including counters for CPU, memory, disk, etc. Ideally this would be ...
0
votes
0answers
32 views

Extreme speeds from a hard drive that shouldn't be this fast?

I have a Seagate 7200rpm drive and for some reason ATTO Disk Benchmark concludes that this drive is around 220 MB/s read and write. Isn't this unrealistic for a drive of this kind? ATTO displays the ...
1
vote
0answers
56 views

Why is computer slow in switching between opened applications?

I like to open a lot of Chrome tabs, but when I try to switch between open tabs, the tab tends to re-render. When I have some other applications open alongside with chrome, those applications also ...
0
votes
1answer
74 views

My CPU claims it is 2.53 GHz but never reaches it. Why?

My CPU claims it is 2.53 GHz but never reaches it. I run CPU burner, and set c state limit to c0. All power savings are disabled and I set multiplier to 20T which is the only allowed turbo multiplier ...
0
votes
0answers
104 views

RAID to handle 800 random blocks per second

This is a homework. We are supposed to pick HDD, imagine we are buidling RAID to handle 800 random blocks per second (550 reads/250 writes). I have picked RAID5 made out of 3 HDDs. But it is too ...
-1
votes
1answer
68 views

Why is my Lenovo G500 laptop computer running slowly?

The one I’m currently using is a Lenovo G500, Intel Core i7, 2.10 GHz, 8 GB RAM, 1 TB HDD, Windows 8.1 64-bit, AMD Radeon HD 8570M, Intel HD 4000. The problem is that it is slow. It lags, even if I ...
1
vote
0answers
66 views

How to measure a HDD's RPM speed?

EDIT: My original intent with this question was to figure out if it would be worth purchasing a 7200rpm drive if mine turns out to be 5400rpm, but JakeGould has made it clear that RPM alone is not ...
0
votes
0answers
13 views

Controlling I/O Intesity for a JOB with FIO

I am trying to create a workload profile for a performance evaluation using FIO[1]. This workload profile is based on those presented in the SPC1 specification published by the Storage Performance ...
0
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0answers
41 views

VMWare Workstation split vs monolithic disk

After some reading of what's available on the internet it seems that all sources state that monolithic disks are faster, and the only advantage of split disk is portability/compatibility with file ...
0
votes
0answers
31 views

How to troubleshoot cyclically slow SSD writes (it's like a sine wave)

I recently built a machine from some older parts, including an Intel 80gb SSD and 5400 rpm hard drive. I installed Windows 10 Technical Preview and have observed decent performance overall, but when ...