The latency tag has no wiki summary.
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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 ...
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3answers
85 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
56 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 ...
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1answer
75 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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28 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 ...
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3answers
575 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 ...
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2answers
158 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 ...
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1answer
120 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 ...
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1answer
216 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 ...
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1answer
318 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 ...
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97 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 ...
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1answer
189 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, ...
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71 views
How much latency does Hadoop typically introduce? [closed]
I plan to deploy 3 Hadoop nodes (2 quadcore CPU, 16GB RAM, 500GB HDD) loaded with data into HDFS. Each data line could be something like:
timestamp;count_of_current_sessions
My aim is to calculate ...
3
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0answers
173 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 ...
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1answer
55 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 128mb 3d video card and 2 gigs of RAM. I'm trying to record quarter-size video with only 15 fps, but I'm ...
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0answers
95 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 ...
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102 views
Windows 7 computer experiences audio interruption every 1 minute
I am experiencing a strange issue on my Win 7 64bit machine where there is about a half second interruption to any audio source which occurs exactly every minute, suggesting maybe some service is ...
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2answers
188 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 ...
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1answer
109 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? ...
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3answers
417 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 ...
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1answer
121 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 ...
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3answers
254 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 ...
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2answers
319 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 ...
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3answers
281 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 ...
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2answers
307 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 ...
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1answer
68 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
525 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 ...
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3answers
239 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
324 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?
2
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1answer
360 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 ...
2
votes
1answer
229 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 ...
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2answers
277 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 ...
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358 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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184 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
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1answer
194 views
Network latency
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 ...
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1answer
200 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, ...
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1answer
863 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? ...
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3answers
401 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)?
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1answer
2k 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 ...
3
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1answer
343 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 ...
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2answers
83 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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3answers
889 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
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1answer
148 views
What configuration tweaks do I need to do to my Wifi base station to get minimum latency?
I am developing a specialized screen sharing solutions. The requirements call for it to: a. work over Wifi LAN network, b. provide minimum latency and jitter.
I did all I know how to do in the ...
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1answer
41 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 ...
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0answers
61 views
How to reduce delay between forum posts in phpbb [closed]
In my phpbb forum, just after I post a reply to a thread, a page is shown and I've to wait around 5 secs to return back to the thread. How do I reduced the time to 0. (I tried setting the "Flood ...
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0answers
242 views
Win7 -> Server 2008: Mapped drives take a long time to open
First, the configuration:
I have a desktop and a laptop running Windows 7.
I have a server running Windows Server 2008 Enterprise Edition.
The workstation and server connect to the same Gigabit ...
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3answers
194 views
Data coming from the network is only partially transfered on Asus EEE 1001HA, Ubuntu 10.4 Lucid
My wife's netbook started behaving strangely lately. I dug around and found the following symptoms:
web browsing: painfully slow (keeps "loading" pages; it might show something like half the Google ...
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1answer
540 views
Firewire audio dropouts Dell Vostro 3500
This question is actually answered, I'm putting it up here since other people might be running into this and it's ultra annoying. Hardware/software involved:
RME Fireface 400 firewire audio ...
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2answers
284 views
Is it ok to mix CL4 memory with CL5?
I have 2 x 1GB on 800Mhz CL4 memory in my PC. I'm planning to upgrade to 6GB by adding a pair 2GB modules.
Is it ok if I buy CL5 modules or do I have to buy CL4?
2
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1answer
503 views
Low latency keyboards - are they for real?
Having just seen some commercial or other I just realized there could be such a thing as a high-latency keybard - as compared to a low-latency keyboard. If so then maybe a low-latency one could be yet ...
