Solaris Tunable Parameters Reference Manual


The system daemon, fsflush, runs periodically to do three main tasks:

Frequency of invocation, whether the memory scanning is executed, whether the file system data flushing occurs, and the frequency with which it will occur are configurable.

For most systems, memory scanning and file system metadata syncing are the dominant activities for fsflush. Depending on system usage, memory scanning can be of little use or consume too much CPU time.