Questions tagged [bandwidth]

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A package R for normal-reference bandwidth selector

I use kernel smoothing for estimating the area under curve of ROC curve in R using kroc in library(ks) x
zaky
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VIDIOC_STREAMON error 28, No space left on device ,after i tried the common solution on the web

I have a depth camera(XTION2). i can successfully get the image stream by the following code: roslaunch openni2_launch openni2.launch rosrun image_view image_view image:=/camera/depth/image_raw but when i tried output my rgb image stream by the following code roslaunch openni2_launch openni2.launch...
huxian liu
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Android: How to measure the effect of ad blocking in terms of the number of blocked ads and the network bandwidth consumption?

I am currently developing a browser running on Android. I want to add an ad blocking feature which will additionally show the effect of it in terms of the following metrics: the number of ads blocked by the blocker the amount of network bandwidth consumption saved by the blocker Do you have any idea...
Kevin Cho
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JWPlayer vs VideoJS | 500 Mbps = 1k users vs 300 users

Recently I switched VideoJS from JWPlayer due to high pricing. But the thing is, I was able to maintain 1000 concurrent users easily with 500 mpbs. But after switching to videoJS, I can't even pass 350 concurrent user due to bandwidth limitations. What could be the issue? What should I check? I have...
Pelin
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Unable to accurately throttle the bandwidth using TC rules on docker containers

I am using following TC rules to shape bandwidth and latency between any two containers in a cluster of containers. tc qdisc add dev eth0 handle 1: root htb default 11 tc class add dev eth0 parent 1: classid 1:1 htb rate 150Mbps tc class add dev eth0 parent 1:1 classid 1:11 htb rate 150Mbit tc qdisc...
shreyas
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Sqoop parallelism on cluster mode?

Can anyone help me understand this stuff? I quite understand that when I run a Sqoop script the default mappers would be 4 and it runs parallel. So Sqoop is creating 4 sets of SQL script base on the primary key resulting in four chunks of data. The thing I don't understand is whether these mappers r...
kumar
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Track how much bandwidth/request a user uses?

Currenty I track each users IP address to get a unique value of a user, and if they register I then get extra data. But I want to somehow figure out how much data a user is drawing. Let's say they make a GET request and they have made a request of 5KB, they also download an image which is 200KB. In...
J. Doe
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How big are the images that Instagram uses to populate its feed?

I have a use case for an Android app where I need to populate something like Instagram's feed with quite a lot of images. The problem is that I think it might take a lot of bandwidth. I was wondering if anyone knows how Instagram, for example, reduces the size of the images that they use for the fee...
Dimitar Filipov
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ASK : What if 1 server send ping to 5000 or more device?

What if 1 server send ping to 5000 or more device at same time? does it cause bandwidth overload? or does it make flooding? thank you
Gibran Akbaromi
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control group of users bandwith limit with User Profile in mikrotik/hotspot and freeradius mikroik-group attribute

i'm using ldap+freeradius and mikrotik as my AAA system. hotspot user is authenticated via ldap server. my users are separated by groups in ldap and i control quota per group and ... in freeradius user file like this: DEFAULT Ldap-Group == 'stu', Simultaneous-Use := 2, FUM-Total-Bytes := '9126805...
Iman Darabi
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How can node.js local server be limited to a specific baud rate?

Is there a way to do this? I'm calling node.js server from a bat file: http-server -p 8080 -c-1 exit I read there is throttle, but there is NO info how it can be used in a command line for node.js server -if at all.
user5515
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Why are my interval polling requests occurring only once?

I am trying to make a simple polling service using rxjs and angular 7 and am running into a recurring issue that my requests are only actually being fired once but the interval completes successfully with no errors. My service component looks like this: import { HttpClient, HttpHeaders, HttpReques...
Hunter Johnson
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Azure VM network bandwith

We are currently configuring an Azure VM (Standard B4ms (4 vcpus, 16 GB memory)) This runs a .Net WCF service for transfering files to our Windows Application client. (It's a quite specialized service and cannot easily be replaced by a Azure Storage Rest API, that's why we are going for this soluti...
Beaker
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HttpClient Transfer Speed Slow

I'm confused with the bandwidth of either the HttpClient.PostAsync() command or HttpSelfHostServer server. Trying to post a 500MB file on a local network seems to be slow, but I'm not sure if this is expected behavior or I should be doing something else. All of the small requests run less than a sec...
Ethan DeLong
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How do you measure downstream bandwidth per user?

In a Linux-based system (specifically, Ubuntu Server 8.04), how can you measure downstream bandwidth on a per-user basis? Optimally, I would like a method that provides data directly instead of having to run another process and parse its output. I have a technique for measuring per-user upstream b...
Topaz
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How much VRAM on each iPhone/iPod model?

I know MBX model has limit of 24MB VRAM. How about SGX models? And can I assume all iPhone/iPod touch models have SGX or MBX at least? No other models? And how much memory bandwidth (to/from GPU) they have?
Eonil
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iPhone sdk socket - bandwidth used

I am testing an app that connects through an asynchronous TCP socket to an C# server and sends 1 byte every 30 sec (implementing a heartbeat). After about an hour later the app had sent 132 packets (of one byte) to the server, the packets have been received ok. The iPhone app connected once to the s...
Plato
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How to most efficiently load jQuery plugin files?

I am using a number of jQuery plugins. Is it more efficient to reference them separately in the master page, or should I lump the contents of each file into a single jQueryPlugins.js file and reference that?
DaveDev
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PHP Real-Time Bandwidth

I am trying to create a simple file hosting script. I'm in the process of learning PHP myself, thus facing some difficulties.. The idea is to have each user's account to have their own bandwidth allocation (for downloading). I'm not sure how this is done. I've done some searching, but I cannot find...
Ben C.
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TcpClient bandwidth estimation

I want to create bandwidth estimation tools using TcpClient. The problem im having is, I want to perform measurement in predefined time (instead of predefine buffer data length to transfer). If i use loops(transfer small chunks of data repeatedly), wouldnt that slow down the performance(manual fragm...
Syaiful Nizam Yahya
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programmatically measure blackberry bandwidth usage

i want to measure my App bandwidth usage programmatically in Blackberry and i have no idea that how to implement this and please refer me such App which measures Bandwidth, i will be very thankful to you.
Farhan
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How do i monitor Internet traffic?

How do i monitor internet only traffic without LAN traffic(such as file transfer between LAN) using vb
Suriyan Suresh
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What Stack for a scalable video site?

If you were creating a site, with similar functionality to youtube (this isn't another clone, it just has a segment with similar functionality). What stack would you use to be able to develop and allow for scalability? Basically, I don't want to do the work building it, only to find when I have x n...
CaffGeek
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Bandwidth Calculation in Mbps

Can someone check this calculation? I want to calculate the speed of my internet connection by downloading a file from a remote server. My time unit is in 1/60th of a second. Let's say the file on the remote server is 32K. timeBegin = ticks
Jordan
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Bandwidth for audio stream for the mobile client

1/ I would like to know if I am computing (with rough precision) the bandwidth for MP3/AAC audio stream correctly. Parameters of the stream are: Sample rate: 44100, Bitrate: 128bit Channels: 2, Stream type: icecast (no metadata) Codecs used: MP3 or AAC The raw audio would be: 44100*128*2 = 1128960...
STeN
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How to monitor internet bandwidth from Web page?

I wish to monitor the my internet bandwidth from a web page i create. Is it possible to handle or read data packets by the web page from network adapter using Java(.jsp) code ? It should be dynamic and should be able to update the page as soon as possible. EDIT: May be i was not clear. What i want i...
nebula
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When we connect an ethernet device on the network,at what speed it starts communication

What steps are performed by ethernet device to connect to a n/w? Does it start communication from it's lowest or highest supported speed? To make it more clear I have following example If device A is currently setup at 10Mbps and just connected to N/W router R,which can support both 10Mbps and 100M...
MCG
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How to measure network throughput during runtime

I'm wondering how to best measure network throughput during runtime. I'm writing a client/server application (both in java). The server regularly sends messages (of compressed media data) over a socket to the client. I would like to adjust the compression level used by the server to match the networ...
Markus Kramer
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Max Client Bandwidth

I am making a small Online 2D RPG multiplayer game that uses a client-server architecture. I was reading up on the max bandwidth a client can receive from the server for I don't just kill players' connections, but am having a hard time finding real good data on google. Currently updating the status...
will
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Does forcing file download with php headers affect my bandwidth?

I was looking for a front-end js solution to this problem/concept of forcing file downloads in the browser. Basically, I want to make the browser download a file via some js event. I know in HTML5 we have the download property but its only supported in Chrome and the end-user still has to actually...
iwek
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What is the best way to monitor available network bandwidth between 2 nodes?

I need to monitor network bandwidth between two nodes. I have full access to both ends and can run servers in both ends. Can you give some clues, ideas or related links. And also the possibility of writing it using Java(Oracle) API. UPDATE :- Can I use time and packet size to calculate a bandwidth....
Thilina
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How to automate measuring of bandwidth usage between two hosts

I have an application that has a TCP client and a server. I set up the client and server on separate machines. Now I want to measure how much bandwidth is being consumed ( bytes sent and received during a single run of the application). I have discovered that wireshark is one such tool that can help...
AnkurVj
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Limiting data transferred through a socket in c++

I am working on a USB redirection software which redirects USB device on network by adding a virtual USB device on client machine. Everything is working fine but client complains that when he connects a webcam with 640X480 resolution, the 100 Mbps network chokes. I have tested the webcam on 1 Gbps A...
umair
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Does continous streaming of positions work for a HTML5 action-intensive server-client game?

In an action intensive (fighting-style) game designed for ~100 players, is it sufficient to stream the positions of every player to every player via websocket, considering current bandwidth limitations, or would it be overkill? If so, are there options that would not?
MaiaVictor
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Recording bandwidth usage of a legacy Java application

I know that there are a lot of threads on monitoring and/or limiting network bandwidth usage, but none of them provide a satisfactory answer. Here is my problem: I have a legacy java application which communicates to different servers (like HTTP and JMS). My application can also receive incoming HTT...
Drona
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Libraries for obtaining usage data and connection speed for a specific period of time

Am getting to do a project that consists of a cross-platform(windows, linux, mac) native desktop app that measures a user's data usage (in KB, MB, GB) and the link connection speed(in kbps or mbps) for either wi-fi, ethernet or 3G modem connectivity options. Am confortable with java, python, C++ i...
David Okwii
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audio and video streaming - managing CPU and bandwidth

I'm looking into audio and video streaming (at the same time) between a provider and a consumer and I am wondering what are the best/common solutions to handle the balancing between audio and video when it comes to CPU and bandwidth. This is for a proof of concept just to get the idea behind things...
André Moreira
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How can I limit a users total bandwidth across multiple webservers and connections?

I have a web-service where users download files tunneled via apache2 reverse proxies. I am using mod rewrite and the P flag in conjunction with a rewrite map. Basically it looks like this: RewriteEngine on RewriteRule /my-identifier/(.*) ${my-rewrite-map:$1} [P] I know I can limit the bandwidth of o...
The Surrican
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GPGPU - Arithmetic intensity and caches

I am studying theoretical stuff on GPUs used for scientific applications and I found this sentence: High arithmetic intensity and many data elements mean that memory access latency can be hidden with calculations instead of big data caches. What does this exactly mean? Can be interpreted as a sugges...
Pippo
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Facebook using a TON of BW on our site with facebookexternalhit

Over the last several weeks we have seen a HUGE increase in BW usage but not in page views. I finally researched the access_logs and found a TON of lines like this in there: 173.252.103.0 - - [09/Mar/2013:17:48:19 -0500] 'GET /files/imagecache/article_max_width/news/2013-03-04/H_h90_110.jpg HTTP/1....
Ryan Shrout

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