Brendan Gregg

JANUARY 17, 2018

OSes usually show you virtual memory and resident memory, shown as the "VIRT" and "RES" columns in top. My tool does this using /proc/PID/clear_refs and the Referenced value from /proc/PID/smaps, which were added in 2007 by David Rientjes (thanks). That's the working set size. It is used for capacity planning and scalability analysis.

Cache 71

Cache Latency C++ Programming 71

Brendan Gregg

JANUARY 16, 2018

OSes usually show you virtual memory and resident memory, shown as the "VIRT" and "RES" columns in top. My tool does this using /proc/PID/clear_refs and the Referenced value from /proc/PID/smaps, which were added in 2007 by David Rientjes (thanks). That's the working set size. It is used for capacity planning and scalability analysis.

Cache 40

Cache Latency C++ Programming 40

O'Reilly Software

MARCH 7, 2018

Software must also consume data from many potential sources and destinations of information—apps, websites, APIs, files, databases, proprietary services, and so on—and because of this, there’s plenty of incentives to do that well. We refer to this aspect as "integration" of different sources and destinations of information.

Transportation 72

Transportation Java Programming Architecture 72