> I hope this is the right place that I post to! > > > > When I enabled polling in 5.4 and 4.11, I found that CPU load > in 5.4 is much higher than 4.11. For example, suppose HZ is 5000, in 5.4 > the idle CPU is about 87%, but in 4.11, the idle CPU is about 99.9%. Is > this right? Or the statistic is wrong in 4.11? > > BTW, ACPI is disabled under 5.4. > > BTW, I found that context switch in 5.4 is much higher than 5.4 while > enabling polling. (Using systat -vmstat 1) > > I'm looking forward your reply. The polling code hasn't been changed since 4.11. I've posted a patch to resolve giant lock issue in it, but it wasn't merged. I don't have enough time by now to rewrite it according the opinions mentioned. But the cost of context switch is definitely higher on 5.x HZ == 5000 is too much i think. 1000 is quite enough for network-intensive applications.
> > Any response is welcome! _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
