On 21.03.2010 17:04, Evgenii Davidov wrote:
Здравствуйте,
On Sat, Mar 20, 2010 at 11:06:35PM +0000, Doychin Dokov пишет:
Description:
It seems like flowtable has been merged and enabled by default in 8.0.... which
is a really really bad idea.
On a system which handles two full BGP tables it makes one of the CPU cores run
at 100% right after most of the prefixes get installed in the routing table.
i saw the same effect with ospf
8.0-p2, 2 full-view with openbgpd
"tuning":
net.inet.tcp.blackhole=2
net.inet.udp.blackhole=1
net.inet.icmp.icmplim_output=0
net.inet.icmp.drop_redirect=1
net.inet.flowtable.nmbflows=32768
1 week uptime.Now I think only about increasing tx/rx descriptors to
reduce interrupts (default values was not changed)
netstat -w1 -Iigb0
input (igb0) output
packets errs bytes packets errs bytes colls
49100 0 12290513 23693 0 27268884 0
48322 0 12688283 24332 0 28099404 0
50602 0 12759620 24437 0 27698341 0
47857 0 11354124 21410 0 23845155 0
netstat -w1 -Iigb1
input (igb1) output
packets errs bytes packets errs bytes colls
32428 0 35027019 24562 0 5624934 0
30621 0 33384339 23569 0 4456944 0
28419 0 31014269 21571 0 3638083 0
29409 0 32524760 22137 0 3503600 0
30965 0 33532742 23973 0 5089231 0
netstat -w1 -Iem0
input (em0) output
packets errs bytes packets errs bytes colls
17217 0 3929366 72741 0 46377762 0
17412 0 3745112 75522 0 49338883 0
18385 0 4014568 77444 0 50532101 0
17142 0 3875518 77125 0 47646681 0
16870 0 3528316 73188 0 47940959 0
17069 0 3682891 80268 0 52904747 0
17313 0 4101576 75586 0 51933330 0
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