However, a Delay of 0 should always wind up being shorter than any longer Delay would have been. Thus, a delay of 0 produces an actual delay between 0 and 20ms (or more), depending on the number of needy processes (if there are no needy processes, there will be no delay at all). This is because the OS gives each needy process a slice of CPU time (typically 20 milliseconds) before giving another timeslice to the script.Ī delay of 0 yields the remainder of the script's current timeslice to any other processes that need it (as long as they are not significantly lower in priority than the script). The actual delay time might wind up being longer than what was requested if the CPU is under load. To achieve a shorter delay, see Examples.
Examplws of timeslice windows#
For example, a delay between 1 and 10 (inclusive) is equivalent to 10 or 15.6 on most Windows 2000/XP systems.
Examplws of timeslice drivers#
Remarksĭue to the granularity of the OS's time-keeping system, Delay is typically rounded up to the nearest multiple of 10 or 15.6 milliseconds (depending on the type of hardware and drivers installed). The amount of time to pause (in milliseconds) between 483647 (24 days), which can be an expression. Waits the specified amount of time before continuing. Voipfuture's products fully support the framework's key concepts as well as the KPIs presented in Annex A.Sleep - Syntax & Usage | AutoHotkey Sleep Voipfuture contributed its decade-long experience in timeslice analytics to ETSI TR 103 639. The GMR is also a key benchmark metric for service optimization efforts. This KPI provides a bird's eye view of the user experience in terms of speech quality and an ideal entry point for analysis and troubleshooting of service quality issues. The Good Minute Ratio (GMR) for example is the ratio of timeslices with "satisfactory" user experience over all timeslices of an aggregate. In its Annex the TR provides some examples of timeslice performance indicators. The framework created by ETSI TR 103 639 allows to define numerous KPIs based on fundamental measurements of packet loss, packet delay, codecs and other RTP stream characteristics. Timeslice KPIs let voice service providers create accurate statistics per mobile network cell, enterprise customer trunk, route, destination or any other entity of interest. This creates uniform blocks of measurement data with high detail and uniform duration allowing for mathematically sound aggregation. Timeslicing monitoring systems generate data per fixed time unit thereby segmenting RTP media flows into smaller pieces. Single metrics per call also prevent meaningful aggregation of measurements relating to calls with varying duration, for example when analysing real live calls. This volatility is not reflected by traditional per-call metrics as they lack any temporal detail. The transmission performance in voice over IP (VoIP) networks can vary significantly over time, especially for VoLTE, VoWifi and upcoming VoNR mobile services. The industry need for timeslicing & ETSI TR 103 639 This means that the well-known and widely used SIP signaling KPIs defined in IETF RFC 6076 can now be complemented by meaningful RTP media KPIs to obtain a complete picture of voice service quality. At the same time they allow accurate aggregation of metrics to assess the network transmission performance and resulting user experience. Timeslice KPIs preserve the temporal detail of measurements. media performance metrics based on fixed duration time intervals. The ETSI TR fills a long-standing gap in the telecommunications industry by enabling the definition of timeslice KPIs, i.e. The experts of the ETSI group STQ approved the technical report unanimously in March 2021 following two years of thorough discussion and work on the document. It is the result of intensive collaboration between service providers, government agencies and technology vendors such as Voipfuture. The technical report (TR) describes a framework for timeslice measurement methodologies and metrics assessing the characteristics of RTP-based voice communications.
HAMBURG, Germany, Ma/PRNewswire/ - The European Telecommunications Standards Institute ETSI – known for globally adopted standards, such as UMTS, 4G and TETRA - has published TR 103 639.