vethpair creation performance, 3.14 versus 4.2.0

2015-08-31 Thread Rick Jones
On 08/29/2015 10:59 PM, Raghavendra K T wrote: > Please note that similar overhead was also reported while creating > veth pairs https://lkml.org/lkml/2013/3/19/556 That got me curious, so I took the veth pair creation script from there, and started running it out to 10K pairs, comparing a

Re: vethpair creation performance, 3.14 versus 4.2.0

2015-08-31 Thread David Ahern
On 8/31/15 1:48 PM, Rick Jones wrote: My attempts to get a call-graph have been met with very limited success. Even though I've installed the dbg package from "make deb-pkg" the symbol resolution doesn't seem to be working. Looks like Debian does not enable framepointers by default: $ grep

Re: vethpair creation performance, 3.14 versus 4.2.0

2015-08-31 Thread Rick Jones
On 08/31/2015 02:29 PM, David Ahern wrote: On 8/31/15 1:48 PM, Rick Jones wrote: My attempts to get a call-graph have been met with very limited success. Even though I've installed the dbg package from "make deb-pkg" the symbol resolution doesn't seem to be working. Looks like Debian does

Re: vethpair creation performance, 3.14 versus 4.2.0

2015-08-31 Thread Eric Dumazet
On Mon, 2015-08-31 at 12:48 -0700, Rick Jones wrote: > On 08/29/2015 10:59 PM, Raghavendra K T wrote: > > Please note that similar overhead was also reported while creating > > veth pairs https://lkml.org/lkml/2013/3/19/556 > > > That got me curious, so I took the veth pair creation script