HZ in RELENG_5? tcp_subr.c related

Tue Feb 22 08:43:37 GMT 2005

On Tue, 22 Feb 2005, Emanuel Strobl wrote:

> I read this commit message to RELENG_5: 
> http://www.freebsd.org/cgi/getmsg.cgi?fetch=436074+438355+/usr/local/www/db/text/2005/cvs-all/20050206.cvs-all
> and commented out the HZ=1000 line in my kernel config so I use the
> default.  But I see only 100 interrupts/sec on clk (with systat) so is
> it true that the default HZ has changed from 100 to 1000 in RELENG_5? 

In RELENG_5, the default HZ for amd64 is 1000, but for all other platforms
it is 100.  So amd64 users will see a ten-fold decrease in tcp_isn_tick()
running, but i386 (and other) users will see no change.

Robert N M Watson