10-31-2013
Hi
This tunning parameter was handed to me to implement as we have moved to 10GE. Our environment is using LACP and the thought was that to take advantage of the extra bandwidth and ensure that the streams get spread across all links to up the value, however I cannot seem to verify any performance improvements with just using iperf, and I am thinking that maybe I should be measuring this in some other way
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LEARN ABOUT CENTOS
tapset::tcp
tapset::tcp(3stap) tapset::tcp(3stap)
NAME
tapset::tcp - systemtap tcp tapset
DESCRIPTION
This family of probe points is used to probe events that occur in the TCP layer,
tcp.sendmsg
Sending a tcp message
See probe::tcp.sendmsg(3stap)
for details.
tcp.sendmsg.return
Sending TCP message is done
See probe::tcp.sendmsg.return(3stap)
for details.
tcp.recvmsg
Receiving TCP message
See probe::tcp.recvmsg(3stap)
for details.
tcp.recvmsg.return
Receiving TCP message complete
See probe::tcp.recvmsg.return(3stap)
for details.
tcp.disconnect
TCP socket disconnection
See probe::tcp.disconnect(3stap)
for details.
tcp.disconnect.return
TCP socket disconnection complete
See probe::tcp.disconnect.return(3stap)
for details.
tcp.setsockopt
Call to setsockopt()
See probe::tcp.setsockopt(3stap)
for details.
tcp.setsockopt.return
Return from setsockopt()
See probe::tcp.setsockopt.return(3stap)
for details.
tcp.receive
Called when a TCP packet is received
See probe::tcp.receive(3stap)
for details.
SEE ALSO
probe::tcp.sendmsg(3stap), probe::tcp.sendmsg.return(3stap), probe::tcp.recvmsg(3stap), probe::tcp.recvmsg.return(3stap),
probe::tcp.disconnect(3stap), probe::tcp.disconnect.return(3stap), probe::tcp.setsockopt(3stap), probe::tcp.setsockopt.return(3stap),
probe::tcp.receive(3stap), stap(1), stapprobes(3stap)
IBM
--- tapset::tcp(3stap)