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How many packets can be written into Kernel sockets per second?

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Top Forums UNIX for Advanced & Expert Users How many packets can be written into Kernel sockets per second?
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Old 04-29-2016
Power How many packets can be written into Kernel sockets per second?
Hi,

Its been a long time since i programmed a multithreaded application that can do Tx and Rx of datagrams over unix sockets.

I well remember that though the threads were efficiently designed to be independent of each other, and was writing to different sockets, there was a limitation , which i remember that only 3000 approximate datagrams/packets can be sent/received between the host application and the kernel - which i came to know from some forums, and infact, our timers used to expire due to non-reception of approx >3000 packets if it was configured - reason being the kernel to host transfer of the packets were slow.

Before i could attempt figuring out that again, wanted to ask if anyone knows a theoretical limitation seen by the linux kernels?
In other terms, what is the max data transfer rate between the Kernel space and user space through the various IPC mechanisms?

If i don't get to know that, i may end up doing an assumption.
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LEARN ABOUT CENTOS

uml_switch

UML_SWITCH(1)                                                 General Commands Manual                                                UML_SWITCH(1)

NAME

       uml_switch -- switch daemon for user-mode Linux

SYNOPSIS

       uml_switch [-unix control_socket data_socket]  [-hub]  [-tap tun device]  [-compat-v0]  [-daemon]

DESCRIPTION

       This manual page documents briefly the uml_switch program.

       This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page.

       uml_switch is a daemon for managing a virtual network between user-mode Linux systems, with no connection to the host system's network.

       It will listen for connections on a pair of UNIX domain sockets, and forward packets between clients which connect to them.

OPTIONS

       -unix control_socket data_socket
                 Listen on the specified pair of sockets, instead of the defaults.

       -hub      Act  like  a hub.  This means that packets received will be broadcast over all virtual links.  The default is to act as a switch,
                 where packets are only sent to the link matching the destination MAC address of the packet.

       -tap tap device
                 Connect the switch to a dynamically created tap device on the host

       -compat-v0
                 Specify control protocol version 0 compatibility.

       -daemon   Run in the background as a daemon.

SEE ALSO

       linux(1)

       The UserModeLinux-HOWTO (link to URL http://user-mode-linux.sourceforge.net/UserModeLinux-HOWTO.html)

AUTHOR

       uml_switch was written by Jeff Dike and others.

       This manual page was written by Matt Zimmerman mdz@debian.org for the Debian GNU/Linux system (but may be used by others).   Permission  is
       granted  to  copy,  distribute  and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later
       version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts.

                                                                                                                                     UML_SWITCH(1)