Latency is the time difference between the start of an event and the time that the effects become noticeable.
3
votes
2answers
297 views
Very low latency streaming
I'm looking to stream a live lecture into an overflow lecture theater. I'm planning to stream HD content along with audio from a powerful server with nVidia GeForce GPUs connected to the client via a ...
3
votes
2answers
513 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 ...
2
votes
2answers
112 views
Ping spikes in Windows 7
This is what my average latency looks like.
Request timed out.
Reply from 74.125.224.198: bytes=32 time=470ms TTL=53
Reply from 74.125.224.198: bytes=32 time=31ms TTL=53
Reply from 74.125.224.198: ...
1
vote
2answers
221 views
Having trouble streaming music over my WLAN through iTunes and Apple TV
My wife recently purchased me Apple TV for Xmas and I am trying to set it up so it can access my music over a wireless network and I am experiencing network latency issues when trying to stream music ...
3
votes
1answer
288 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 ...
2
votes
1answer
132 views
Increasing value of sched_latency_ns and sched_min_granularity_ns
Why do I get an error message when I try to increase the values of these two parameters:
#cat /proc/sys/kernel/sched_latency_ns
1000000000
#echo 2000000000 > /proc/sys/kernel/sched_latency_ns
...
0
votes
1answer
44 views
Troubleshooting “bursty” network traffic
I've been having a problem with my Internet connection ever since moving to San Francisco, and it's driving me absolutely up the wall. After using my network connection for anywhere between five and ...
0
votes
1answer
147 views
High latency/ping to local gateway WHILE STREAMING [wireless]
Recently I've become fed up with my wireless internet and want to identify the problem. I don't have a patch cord yet to test a direct connection but so far every computer I've tested has reported ...
0
votes
1answer
235 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 ...
2
votes
0answers
78 views
How to benchmark hard disk?
I am trying to benchmark my hard disk and find the throughput in Mb/s and latency in milliseconds.
This is my code:
public class OneMB implements Timer {
public static void main(String a[]) throws ...
1
vote
0answers
7 views
More latency using VLC than java browser plugin reading a video streaming
I am trying to see a video streaming in my PC from a mobile phone camera using Android and IP Webcam and I am able to do it but I have a problem with VLC.
Runs correctly using VLC and java browser ...
1
vote
0answers
39 views
alsaloop: What happens on a buffer underrun?
I am tuning my sound interface latency with
alsaloop -C hw:1,0 -P hw:1,0 -t $LATENCY_US
When I set $LATENCY_US to 30000, I get around 20% CPU usage.
I can restart this a few times and make some ...
1
vote
0answers
72 views
Wi-Fi very slow except for when another computer uses it
We recently moved to a new home in a new state, with a new ISP. I'm a software guy, and I work from home frequently through the vpn, so I ordered the fastest connection they have. Everything works ...
1
vote
0answers
85 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 ...
1
vote
0answers
188 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 ...
1
vote
0answers
230 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 ...
1
vote
0answers
408 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 ...
0
votes
0answers
38 views
How to fight network latency and jitter issues on Wifi?
I'm having problems with my Wifi connection.
I did a test on PingTest.net with the following results:
Packet Loss: 0%
Ping: 103ms
Jitter: 29ms
Same test but from another machine on the network ...
0
votes
0answers
64 views
Chrome Experiencing High Latency and Low Download Speeds
In the last week, Chrome (latest version, 24.0.1312.57) on Windows 7 (64 bit) has severely deteriorated in download speeds and latency. Using speedtest.net, Chrome is currently receiving ~2.5mbps down ...
0
votes
0answers
47 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 ...
0
votes
0answers
72 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 ...
0
votes
0answers
148 views
Wildblue Viasat Satellite Internet latency issue
I have the new 12Mbit/sec Wildblue/Exede broadband internet service. I'm trying to figure out ways to reduce the latency. Is there Any way I could use DSL for the tcp requests and then use the ...
0
votes
0answers
121 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 ...
0
votes
0answers
209 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 ...
0
votes
0answers
429 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
...
