Abstract: A system has a packet switch for routing network traffic. The packet switch includes a system counter to increment a counter time in predetermined time segments, time stamping logic to associate a received packet with the counter time, and an interval discriminator to assign a received packet to a selected interval counter of a set of interval counters based upon the counter time. A computer is connected to the packet switch. The computer has a memory with instructions executed by a processor to associate the counter time with a time of day, and collect values from the set of interval counters to generate network traffic activity data.

Abstract: A system has a packet switch for routing network traffic. The packet switch includes a system counter to increment a counter time in predetermined time segments, time stamping logic to associate a received packet with the counter time, and an interval discriminator to assign a received packet to a selected interval counter of a set of interval counters based upon the counter time. A computer is connected to the packet switch. The computer has a memory with instructions executed by a processor to associate the counter time with a time of day, and collect values from the set of interval counters to generate network traffic activity data.

Abstract: A computer-implemented method, system, and program product for application response time prediction provides an estimate of application performance in a second network given performance characteristics of the application in a first network. The invention avoids unnecessary simulation of an entire network, and is able to take into account the effect of network performance characteristics on both simple and non-simple applications, including those having relationships among threads.

Abstract: A method is providing for a mobile station to vary the interval between scans by a mobile station for the beacon signals of cells in a communications system, in order to save battery power, when the mobile station is searching to select a serving cell. The method increases the interval between scans in response to the time elapsed since the start of the search. Initially, the scans are conducted with a small interval between the scans in the hope of quickly acquiring a serving cell. If a serving cell is not selected during this initial period of time, then the interval between scans is calculated to increase in response to the increase in elapsed time since the start of the search. If a serving cell is not selected during this period of calculated intervals, then the interval is set to a maximum limit to save battery power. A system for a mobile station to save power by varying the intervals between beacon signal scans when searching for a serving cell is also provided.