Latency is the time difference between the start of an event and the time that the effects become noticeable.

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1answer
145 views

Microsoft Word 2003 - Debug loading times?

Loading new and most local documents is fast as hell, but a few specific documents can take up to 10 minutes to load, which is not acceptable. I know that these documents have macros enabled and ...
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2answers
277 views

Sustaining Dual Channel among many RAM modules

I'd like to know what are the factors that need to be set in order to sustain the Dual Channel mode. In a mobo with 4 DDR3 slots: Do I have to put pair of chips? Eg: If I put 3 identical chips ...
0
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1answer
598 views

How can I get Screen Sharing to perform well with heavy updates?

I am using Screen Sharing on the Macintosh OS X Lion to view a remote VNC server display. I have found that when I have a shell in emacs which has tons of text scrolling by, the Screen Sharing ...
0
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0answers
54 views

surround sound on board upgrade for music creation

disclaimer - i'm not asking for shopping suggestions, just feasibility. I'm thinking of getting a proper soundcard for my machine, but it's been a long long time since i've bought a dedicated card. I ...
2
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1answer
154 views

How do I speak with my ISP about network issues [closed]

Bottom Line Star Wars the Old Republic is killing my network connection. I've sent traceroutes and ping results to my ISP but haven't managed to get the issue cleared up. I would like some help in ...
-1
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2answers
300 views

How is it possible for SSD's drives to have such a good latency?

First time i read some information about SSD's, i was surprised to learn they internally use NAND flash chips. This kind of memory is generally slow (low bandwidth) and have high latency while SSD's ...
4
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3answers
2k views

Live Screencast under Linux

I was having some difficulty with running a Live Screencast under Linux. I've found jtvlc and tried using that, but whenever I use it the stream comes out either blank or lagged with extremely high ...
0
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0answers
98 views

Comcast connection

I have had Comcast for about a month and up until Friday I havent had one complaint. As of Friday I started noticing massive lag while playing Tera, which is a MMO. I started up a ping -t ...
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0answers
156 views

Which RAM configuration for a desktop upgrade?

I am trying to increase the RAM of my home computer, but I am unsure as to how much each aspect of RAM should be weighted (as to which is more important). My motherboard has 6 slots, so I believe it ...
2
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3answers
897 views

Memory, more frequency, or more capacity?

My question my be simple, but I haven't been able to find an answer myself yet. If you had the choice of getting either 24 GB of ram at 1333 MHz, or 12 GB @ 1600 MHz, which would you choose? I know ...
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0answers
167 views

Why do mobile networks have high latencies? [closed]

While Ethernet and WLAN typically have latencies on the order of 1-10ms, mobile networks (GPRS, UMTS etc.) have much higher latencies (200-400 ms for UMTS, even more for GPRS). Why is that? I assume ...
0
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1answer
353 views

High latency on wireless LAN

I have setup a LAN using AirPort. The nodes are Mac Minis. The OS is OS X Lion 10.7.3. The AirPort connects to the Internet using cable and the internal connection is wireless. I tried to ping each ...
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0answers
98 views

high latency on LAN

I have setup a LAN using mac airports and the nodes are macminis. The OS is Lion 10.7.3. the macport connect to the Internet using cable and the internal connection is wireless. I tried to ping each ...
15
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3answers
5k views

What does “Windows is not a real-time operating system” mean?

I came across an application called LatencyMon, that apparently does latency monitoring. I have always understood that the more of a load you put on the processor, the less responsive, or more ...
0
votes
2answers
1k views

DSL vs Cable latency

currently I have a 10Mbps DSL line and I'm thinking to switch to a cable since they got 100Mbps for a little less than double the price I'm paying for 10Mbps. In other words the cable company is ...
6
votes
3answers
3k views

Debugging Linux I/O latency

I'm having some I/O problems on a couple of Linux systems that I administer. They manifest in that processes often block for up to several seconds in such simple syscalls as open(), unlink() or ...
2
votes
1answer
429 views

What is the best way to connect two Macs to minimize network latency?

What is the best way to connect two Mac Minis, one running Lion and the other one running Snow Leopard, to minimize latency for sharing screen? Right now they are connected through a wireless network ...
1
vote
2answers
2k views

Lowest Latency Sound Card

I'm using a sound card for reading analogue signals and for the ADC component. I need extremely low latency (<1ms). Is the sound card the right way to go or can you get better results with a custom ...
0
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0answers
301 views

Calculating DRAM Timing Parameters from Latency

Let's say that we're looking at a DRAM with typical timing parameters (those of interest are listed below) with read and write latencies of ~20-50 nanoseconds. How would one go about changing the ...
4
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2answers
1k views

How to solve extreme DPC latency peaks (240.000µs)

Once every few minutes I get a sudden peak of DPS latency that causes the system to "freeze" for a fraction of a second (240.000µs = 240ms). The freeze is not only audio, also video, input devices, ...
3
votes
1answer
476 views

Windows 7 Lagging with multiple disks

I have an EVGA SR2 build with two Intel Xeon X5680, 48GB ram OCZ Reaper HPC Series at 1600 MHz running on Windows 7 x64 Proffesional. My bootable hard drive is an OCZ Vertex II 120GB and I have an ...
0
votes
1answer
115 views

Recording a video game on a P4… speed me up, Scotty?

I'm trying to record a d3d game, but I have HUGE lag issues. I'm on a p4 with an onboard 128 MB 3D video card and 2 gigs of RAM. I'm trying to record quarter-size video with only 15 fps, but I'm still ...
1
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0answers
210 views

Is data transfer through a WPA2 protected ad-hoc network slower as compared to a unsecure one?

We play multiplayer LAN games on our laptops by creating wifi ad-hoc connection (sometimes protected to ensure no one other than whom we want to, joins in). Now my question is how much using a secure ...
5
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2answers
833 views

High packet loss - all hops show red

I've run Ping Plotter and here are the results with high packet loss on all hops (around 12%). I find hard to believe Google's routers are faulty, is it my network card to blame? Click the ...
1
vote
1answer
234 views

How much latency is introduced when the computer processes incoming network packets?

How much time does it take, from the time the data is received by the network card, until it is time stamped by the Linux kernel? Is it in microseconds? nanoseconds? How I can improve this latency? ...
13
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4answers
3k views

Negative ping time?

This is the first time I've seen this and I'm not sure what it means; 64 bytes from 74.125.93.99: icmp_seq=6233 ttl=53 time=545.493 ms 64 bytes from 74.125.93.99: icmp_seq=6234 ttl=53 time=776.093 ...
1
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1answer
179 views

Extreme Latency on Brand New CPU?

I've recently picked up a Coolermaster HAF with an ASUS p8p67pro motherboard equipped with 8 gigs of ram while running on Windows 7. This thing is hardly a month old, and yet it runs like an old dog ...
6
votes
3answers
4k views

Network latency measurement (Linux)

I'd like to measure network latency for SNMP GET request. There is a free command line tool time which can be used to find timing statistics for various commands. For example it can be used with ...
3
votes
2answers
681 views

How to increase transfer speed on fat long pipe?

I have a log pipe between two facilities (gigiabit circuit with RTT latency of 17ms). When doing system-to-system file transfer (file sharing, rsync, ftp, sftp) I'm hitting maximum speed of approx 30 ...
3
votes
3answers
411 views

Windows 7 Network Mystery

I'm having serious connectivity issues in Windows 7 and I'm out of diagnostic ideas. Here's way too much detail: Machine is about 6 months old, haven't had a problem up until yesterday. Internet ...
2
votes
2answers
3k views

What's the minimum network latency for a 1000 km connection using optic fibers?

I know most of the network latency for short distances is due to router processing times. But for longer distances the speed of light also counts. And it's different from the speed the light in the ...
2
votes
1answer
101 views

Powerful monitoring applications for Windows

I have been using the Windows 7 Resource Monitor lately which has proven very powerful. One can see what disk latency any process produces and effectively disable it if not required. For example, I ...
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3answers
2k views

Latency of WiFi router

My current gaming desktop is connected to router via few meters of class 5 UTP. But I have to move it to another room, and I'm reluctant to drill holes in the wall to get cables trough. Currently I ...
6
votes
3answers
751 views

Fixing bufferbloat in home network

In our home network, with continuous network IO happening latencies get ridiculous. It's fine with light loads but quickly becomes unusable if I'm, say, rsyncing a large number of small files, --other ...
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1answer
626 views

high latency pings to router

I am using a wireless network, wondering why when pinging the router I sometimes get high pings. shouldn't the time be <1ms all the time?
4
votes
1answer
2k views

How to reduce latency with openssh?

I'm ssh-ing to a server several thousands kilometers away, and every keystroke takes 500-800ms, so it is getting annoying. Is it possible to have my ssh client cache each line I type locally and ...
3
votes
1answer
519 views

SSH and Latent Connections (e.g., satellite connections)

Most of the week I live in the city where I have a typical broadband connection, but most weekends I'm out of town and only have access to a satellite connection. Trying to work over SSH on a ...
0
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2answers
468 views

10 System LAN latency with ADSL modem as gateway

Recently I expanded LAN in my office from 3 to 10 computers. Structure star topology, one ADSL Modem connected to One Switch which is again connected to 10 computers. Also we have Wifi device ...
0
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0answers
450 views

Windows 7 Line In Delay Issue

I'm running Windows 7 Pro 32-bit on my Dell Latitude 2100 netbook and I'm having an issue with the line in device/driver/functionality. The device & driver are stock: Driver Date: 7/13/2009 ...
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0answers
263 views

Confusing relation between RAM frequency and timings

I'm confused with relation between frequency and timing information when buying DDR3 RAM modules. I have OCZ DDR3 modules which should have 1600MHz frequency and CAS 7-7-7-20. If I use these modules ...
3
votes
1answer
328 views

Experiencing lockups due remote system Hard drive being shut off

Whenever I open a homegroup folder on another computer on my network, and the remote harddrive has to spin up, windows explorer seems to lock up until the remote request completes. This affects ...
0
votes
1answer
569 views

Utility to tune network card to reduce latency to its absolute minimum?

I'd like to tune my network card to have the absolute minimum latency when pinging a remote server. Is there a Windows utility that allows me to change things such as MTU, ACK time, buffer length, ...
8
votes
1answer
2k views

How does RAM frequency and latency differ? How does it affect performance?

I have a question regarding two specifications of RAM memory, the amount of Mhz and the latency timings (example: 9-9-9-24). Which one of the two is most important for system performance and why? ...
7
votes
4answers
658 views

Does RAM timings with n-n-n-3n value perform better than anything else?

I want to ask something: Does RAM timings with n-n-n-3n (i.e. 8-8-8-24, 9-9-9-27, etc) perform better or is optimized more than the other who doesn't (i.e. 7-8-7-21, 9-9-9-24, etc)?
5
votes
1answer
9k views

VLC Caching levels

When I open the Preferences of VLC and go to Input & Codecs, I have a setting called Default Caching Level. I can choose between Cusom Lowest latency Low latency Normal High latency Higher ...
4
votes
1answer
772 views

How to ssh in the face of huge (25 second) latency?

I need to create an ssh connection between two Linux machines running Centos v5 but the latency could be as high as 25 seconds. I find that if I test something approaching this configuration ...
2
votes
2answers
109 views

Is there a way to use a service to lower your latency?

There is this service wtfast that claims it can lower your ping in some games. Is this true? How it works?
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vote
3answers
2k views

High DPC Latency and Slow Hard Pagefaults on Gigabyte GA-EP35C-DS3R Motherboard

I've owned a DIY-built PC on a Gigabyte GA-EP35C-DS3R motherboard for about 2 years now. When I first built this PC, it ran perfectly under Windows XP 32-bit. Performance was good, and I had no issues ...
0
votes
3answers
311 views

What configuration tweaks do I need to do to my Wi-Fi base station to get minimum latency?

I am developing a specialized screen sharing solution. The requirements call for it to: Work over a Wi-Fi LAN network. provide minimum latency and jitter. I did all I know how to do on the ...
1
vote
1answer
55 views

low-latency charting?

Need to deliver real-time charts (mostly bar and line charts) and wondering if a fast library can help. I guess that C is mandatory for speed and I would favor frame-buffer drawing (rather than a ...