TimeKeeper PTP Software for Linux

TimeKeeper fits easily into existing Linux infrastructures to provide precise synchronization across all Linux resources through standard Linux interfaces — clock-gettime, gettimeofday and time. Timekeeper corrects for the drift of local CPU clocks, smoothly and predictably, without the lurching and overshoot common in stock NTP.

High Performance
Systems and applications perform better with TimeKeeper installed. Time stamps and network logs are more accurate. File systems are more reliable. And critical high-speed, low-latency business applications perform faster with greater accuracy. With TimeKeeper, accessing time is no longer a bottleneck. TimeKeeper creates a fast path directly to applications so they never leave the processor core. That means there are no system calls, context switches, context returns, memory stalls or cache stalls to degrade performance.

Easy To Use
TimeKeeper can smoothly converge and hold the offset between a client and server to below 100 microseconds within three minutes and below 10 microseconds in five minutes. There is no delay or extended adjustment periods as Linux attempts to slew the time.

Comprehensive
Even applications that span multiple processors have fast access to comprehensive and cohesive time — which in Red Hat 6 is reported across all Linux resources. Synchronization is totally transparent so that all applications and the operating system itself see the same accurate time with no software modifications or system "tweaking" involved.

• Kernel level PTP and NTP Linux time client
• Easy plug-and-play installation
• Transparent to applications and most legacy timekeeping utilities
• Improves time accuracy and determinism of local clock and system-wide time synchronization
• No application software modifications required
• Minimal impact on system load and throughput
• Improves log file timestamp accuracy
• Easy installation on commercial and in-house Linux distributions
• Multi-core machine friendly

DataSheets
TimeKeeper Software for Linux (PDF)

White Papers
A Comparison of PTP Software Slave Accuracy, Precision and Effectiveness (PDF)