Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic
 
PerlMonks  

Re^2: net::server performance limits

by alager (Acolyte)
on Dec 13, 2010 at 22:18 UTC ( [id://876952]=note: print w/replies, xml ) Need Help??


in reply to Re: net::server performance limits
in thread net::server performance limits

I've actually already set just about all of those, with the exception that I've turned off some of the security items just to eliminate all possible causes. So syscookies are off, loging martians is off.
Here are the settings that I've tweaked:
# Ignore ICMP broadcasts net/ipv4/icmp_echo_ignore_broadcasts = 1 # # Ignore bogus ICMP errors net/ipv4/icmp_ignore_bogus_error_responses = 1 # Do not accept ICMP redirects (prevent MITM attacks) net/ipv4/conf/all/accept_redirects = 0 # Do not send ICMP redirects (we are not a router) net/ipv4/conf/all/send_redirects = 0 # # Do not accept IP source route packets (we are not a router) net/ipv4/conf/all/accept_source_route = 0 net.ipv4.tcp_fin_timeout=15 net.ipv4.tcp_max_syn_backlog = 4096 net.ipv4.tcp_synack_retries = 5 net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 65536 16777216 net.ipv4.tcp_no_metrics_save = 1 net.ipv4.ip_local_port_range = 9000 61000 net.ipv4.tcp_low_latency = 1 net.ipv4.tcp_tw_reuse = 1 net.core.somaxconn = 2048 net.ipv4.tcp_sack = 0 net.ipv4.tcp_dsack = 0 net.ipv4.tcp_tw_recycle = 1 net.ipv4.tcp_syncookies=0 fs.file-max = 253184 #added 12.13.2010 to improve latency performance # Turn off the tcp_window_scaling net.ipv4.tcp_window_scaling = 0 # Decrease the time default value for tcp_keepalive_time connection net.ipv4.tcp_keepalive_time = 1800 # Increase the tcp-time-wait buckets pool size (default was 180000) net.ipv4.tcp_max_tw_buckets = 1440000

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://876952]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others avoiding work at the Monastery: (3)
As of 2024-03-29 14:18 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found