lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Sat, 18 Mar 2017 20:07:22 -0600
From:   Subash Abhinov Kasiviswanathan <>
To:     Tom Herbert <>
Cc:     Eric Dumazet <>,
        Linux Kernel Network Developers <>,
        Stephen Hemminger <>,
Subject: Re: [PATCH net-next v2] net: Add sysctl to toggle early demux for tcp
 and udp

> Less than 1% performance improvement in a benchmark doesn't justify
> the complexity of the patch. Eric's hypothesis was that an unconnected
> UDP socket may show issues because of cache misses in look-ups due to
> so many different sources. This should be fairly easy to benchmark by
> randomly setting source address in your test (IP any and routing my
> need to be set appropriately).

With different source addresses, a larger increase is seen here

The Qualcomm Innovation Center, Inc. is a member of the Code Aurora 
a Linux Foundation Collaborative Project

Powered by blists - more mailing lists