Date: Mon, 18 Nov 2002 22:21:30 +0300 (MSK) From: Dmitry Morozovsky <marck@rinet.ru> To: stable@freebsd.org Subject: DEVICE_POLLING and kern.hz Message-ID: <20021118221514.I34951-100000@woozle.rinet.ru>
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Colleagues, we have FreeBSD router with 4 fxp's and moderately high traffic (up to 15 Mbps at upstream port). There is about 2k5-3k5 interrupts per second, about 1k-1k5 of them are from fxp0. Would it be useful to turn on DEVICE_POLLING on this machine? (it's not high-end, Celeron 750/64M memory, acting as Zebra router and ipfw1) What is the recommended kern.hz value for such machine? What are the drawbacks? currently I have in loader.conf: kern.ipc.nmbclusters=16384 kern.ipc.nmbufs=32768 kern.hz=250 mbuf count usually does not exceed 5k For the reference, it is 4.7-RELEASE-p2-fxpfix (RELENG_4_7 + iedowse's fixes for fxp). Thanks in advance. Sincerely, D.Marck [DM5020, DM268-RIPE, DM3-RIPN] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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