The sysctls tag has no wiki summary.
4
votes
2answers
2k views
Modifying kernel shared memory settings on a lion install
What's the location of the sysctl.conf file on lion? In Snow Leopard it was in /etc/sysctl.conf but now that folder doesn't contain it anymore. Searching for the file in spotlight yields no results.
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1
vote
1answer
501 views
Is there a location of the sysctl kernel parameters for osX?
I would like to read up on os X kernel parameters. I can find them listed, but where can I find the meaning of them?
things like
net.alf.loglevel: 55 ( which are not in the man pages , for either ...
0
votes
1answer
2k views
error: “net.netfilter.nf_conntrack_acct” is an unknown key
i have the next error when i run 'sysctl -p'
error: "net.netfilter.nf_conntrack_acct" is an unknown key
net.netfilter.nf_conntrack_acct = 1
net.ipv4.netfilter.ip_conntrack_max = 9527600
...
1
vote
1answer
3k views
Sysctl config for high performance, large activity
We have some server with a huge amount of visitors (every minute, every day). Basically we had a nice fine-tuned sysctl config for this purpose. (If you don't modify it, it starts to behave ...
2
votes
1answer
1k views
Increasing FreeBSD threads
For network apps that create one thread per connection (like Pound), threadcount can become a bottleneck on the number of concurrent connections you can server.
I'm running FreeBSD 8 x64:
$ sysctl ...
1
vote
1answer
1k views
File-descriptors setting on /etc/sysctl.conf
I have recently learnt that to be able to increase the amount of virtualhosts that we can serve via apache depends on file-descriptors.
they say the value should be added to /etc/sysctl.conf as
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1
vote
1answer
537 views
net.inet.tcp.blackhole option on Fedora
This link:
http://www.freebsdblog.org/51/reduce-server-visibility/
suggests a configuration option for FreeBSD that tells the system to drop all packages arriving from the network to a closed port ...
80
votes
4answers
88k views
FreeBSD performance tuning. Sysctls, loader.conf, kernel
I wanted to share knowledge of tuning FreeBSD via sysctl.conf / loader.conf
/ KENCONF / etc. It was initially based on Igor Sysoev's (author of nginx)
presentation about FreeBSD tuning up to ...
