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Questions tagged [qos]

Quality-Of-Service (QoS) is the management of system resources, network or otherwise, to apply greater returns with minimal overhead, providing a measurable increase in performance.^1 ^2 ^3

Application QoS is related to thread management or Interprocess Communication (IPC) management as it relates to hardware and software resource access.

"In the field of computer networking and other packet-switched telecommunication networks, quality of service refers to traffic prioritization and resource reservation control mechanisms rather than the achieved service quality. Quality of service is the ability to provide different priorities to different applications, users, or data flows, or to guarantee a certain level of performance to a data flow."

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How to use an IO completion port with QOSNotifyFlow

I'm writing a program with sockets and I need QoS services so I'm using qWAVE. Now I want to be able to detect network changes and adapt to it, so based on documentations I should use QOSNotifyFlow. While its design is great for one or 2 sockets,…
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New NetQosPolicy

I am attempting to set up a new quality of service for VoIP on windows 8.1. As I do not have Pro the "gpedit.msc" is unavailable so I am utilizing Windows Power Shell to create a Quality of Service Policy with the New-NetQosPolicy parameter. …
user3749800
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Tool for monitoring QOS

In my project We crawls x number of server. Number of user for each server varies from 1 to n. We crawls 1 to z item for each user. Currently we are monitoring QOS using graphite. We are storing time taken to crawl the item.…
Vivek Goel
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addOutPacket in Tigase Component

I am implementing QOS in tigase to ensure delivery of messages.Below are listed my QOS steps Caching every message packet ( except composing, typing, stopped etc) in a sorted order of timestamp On receiving delivery notification of packet i delete…
Haider Ali
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Does the Differentiated Services Field have any effect in the real world

We deliver realtime data to a large number of cellphone users worldwide, and toying with the idea of marking the data using the Differentiated Services Field in the packets to ensure the data gets there in a timely manner. Our data seems perfect for…
Alexp
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Limit concurrent connection per user. [ Source IP same for all users ]

I've a task to host one HTTP application (might run on apache or nginx) and this application would be used by many programmers as an API. There would be hundreds of programmers sitting at same location / premise / Hall and all sharing same outgoing…
KeyurM
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inter & intra stream in A Multimedia Synchronization System

I have a question that's required in my material to succeed the tutor hasn't explained it, nor the material in my Multimedia Course.In Addition, I have searched the internet for it, and return empty handed. the question is the following: Suppose we…
Danny Loutfi
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Configuring Quality of Service (QOS) Properties, Throttling, and Redelivery in Oracle SOA Suite

My team makes extensive use of Oracle SOA Suite for orchestration and integration of business processes between different systems. During times of peak load, we're concerned about overloading the partner platforms that we integrate with. We're…
Marc
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How would you associate QoS with WCF?

In SOA(Service Oriented Architecture), service composition usually consider the QoS or the Quality of Service during the composition stage. If I am going to create a WCF-based SOA, how would I get the QoS in WCF context?
Lance
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Does QEMU support OpenBSD ALTQ feature of pf?

Does anyone have experience running OpenBSD within QEMU? I am interested in building a "virtual switch" (bridge) and using the quality of service features of pf, in particular ALTQ? The ALTQ main page says that it must supported by the network card.…
Jonas
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Ruby - How to do DSCP marking in packets?

I have a need to mark packets with DSCP markers for testing a product, but I'm not seeing a way to do this directly. Am I just missing something, or do I really need to start learning network programming in C to get this done? Or, which may be…
Aedorn Varanis
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Disabling Traffic Control in Linux

I have read that Traffic Control feature in Linux will try to shape the egress traffic to remove bursts and has its own queue mechanism. I am trying to generate traffic at higher rates as a result Traffic Control would be a bottle neck in my…
codingfreak
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mqtt.js node - passing qos with a message

I am using MQTT.js to create a broker for my new app. For a last few hours I am struggling with passing QoS flag. I can easily pass messageId, dup, retain flags but not QoS. My code is rather simple, on the client (created with MQTT.js) I…
user56250
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Looking for traffic control function (i.e. QOS) library in Linux

I try to port some C++ code from Windows to Linux, but I can't find a similar API for traffic control functions in Linux. I need these functions. Please help if you know where I can find such API? Thank you for your time.
user1263270
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yahoo messenger QoS application type

I am trying to set a QoS rule for yahoo messenger video/voice call. However I don't know what type of service they are. Are they IGMP, SIP, H323 ,RSTP, ....? Or what port range they use?
mahmood
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