Re: Polling slows down bandwidth

2011-02-17 Thread Eugene Grosbein
On 31.10.2010 00:41, Ed Maste wrote: I've been doing testing with FreeBSD 8 and em interfaces recently, and my experience agrees with Chuck's statement - that polling makes things worse when you use new (anything in the last 2 or 3 years) hardware with good quality gigabit ethernet

Re: Polling slows down bandwidth

2010-10-30 Thread Paul Thornton
Hi, On 29/10/2010 18:23, Chuck Swiger wrote: On Oct 28, 2010, at 11:39 PM, Коньков Евгений wrote: so using polling on gigabit NICs is a bottle neck? and is cause of low performance, is not? Simple answer is yes. It should be possible that you could tune polling to get similar

Re[2]: Polling slows down bandwidth

2010-10-30 Thread Коньков Евгений
Hi, Larry. LB Also make sure kern.polling.idle_poll is enabled. By default it is LB disabled. This makes a big difference in polling throughput. enabling that take all CPU time. last pid: 38722; load averages: 1.88, 1.18, 0.85up 1+18:43:28 20:04:54 101 processes: 5 running, 74

Re: Polling slows down bandwidth

2010-10-30 Thread Ed Maste
On Sat, Oct 30, 2010 at 12:32:19PM +0100, Paul Thornton wrote: I've been doing testing with FreeBSD 8 and em interfaces recently, and my experience agrees with Chuck's statement - that polling makes things worse when you use new (anything in the last 2 or 3 years) hardware with good quality

Re[2]: Polling slows down bandwidth

2010-10-29 Thread Коньков Евгений
Здравствуйте, Chuck. Вы писали 28 октября 2010 г., 23:41:58: CS On Oct 28, 2010, at 1:21 PM, Коньков Евгений wrote: [ ... ] CS What is sysctl kern.clockrate, and have you increased kern.hz CS in /boot/loader.conf to at least 1000, if not 2000 or 4000? # vmstat -i interrupt

Re: Re[2]: Polling slows down bandwidth

2010-10-29 Thread Chuck Swiger
On Oct 28, 2010, at 11:39 PM, Коньков Евгений wrote: Здравствуйте, Chuck. Um, greetings? Вы писали 28 октября 2010 г., 23:41:58: CS On Oct 28, 2010, at 1:21 PM, Коньков Евгений wrote: [ ... ] CS What is sysctl kern.clockrate, and have you increased kern.hz CS in /boot/loader.conf to

Re[4]: Polling slows down bandwidth

2010-10-29 Thread Коньков Евгений
Zdravstvuyte, Chuck. (How do you do, Chuck ;-) Вы писали 29 октября 2010 г., 20:23:19: CS On Oct 28, 2010, at 11:39 PM, Коньков Евгений wrote: Здравствуйте, Chuck. CS Um, greetings? yes, it is Вы писали 28 октября 2010 г., 23:41:58: CS On Oct 28, 2010, at 1:21 PM, Коньков Евгений wrote:

Re: Polling slows down bandwidth

2010-10-29 Thread Pyun YongHyeon
On Thu, Oct 28, 2010 at 11:21:11PM +0300, ?? ?? wrote: Hello, w/0 polling: serv1# ifconfig nfe0 nfe0: flags=8943UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST metric 0 mtu 1500 options=10bRXCSUM,TXCSUM,VLAN_MTU,TSO4 ether 00:13:d4:ce:82:16

Re: Polling slows down bandwidth

2010-10-29 Thread Larry Baird
Also make sure kern.polling.idle_poll is enabled. By default it is disabled. This makes a big difference in polling throughput. Larry -- Larry Baird| http://www.gta.com Global Technology

Polling slows down bandwidth

2010-10-28 Thread Коньков Евгений
Hello, w/0 polling: serv1# ifconfig nfe0 nfe0: flags=8943UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST metric 0 mtu 1500 options=10bRXCSUM,TXCSUM,VLAN_MTU,TSO4 ether 00:13:d4:ce:82:16 inet 10.11.8.17 netmask 0xfc00 broadcast 10.11.11.255 inet 10.11.15.15

Re: Polling slows down bandwidth

2010-10-28 Thread Chuck Swiger
On Oct 28, 2010, at 1:21 PM, Коньков Евгений wrote: [ ... ] What is sysctl kern.clockrate, and have you increased kern.hz in /boot/loader.conf to at least 1000, if not 2000 or 4000? Polling mode operation generally performs better when using older 100Mbs ethernet NICs which do not support