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HZ in RELENG_5? tcp_subr.c related
- Subject: HZ in RELENG_5? tcp_subr.c related
- From: rwatson at FreeBSD.org (Robert Watson)
- Date: Tue Feb 22 00:45:30 2005
On Tue, 22 Feb 2005, Emanuel Strobl wrote:
> I read this commit message to RELENG_5:
> 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
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