[dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ?

2014-02-17 Thread Venkatesan, Venky
dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ? On Mon, 17 Feb 2014 14:49:47 +0200 jigsaw wrote: > Hi Stephen, > > Have you tried link time optimization on DPDK application? Does it > decrease the I-cache miss rate evidently? > > thx & &g

[dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ?

2014-02-17 Thread jigsaw
Hi Stephen, Have you tried link time optimization on DPDK application? Does it decrease the I-cache miss rate evidently? thx & rgds, -Qinglai On Sun, Feb 16, 2014 at 9:02 PM, Stephen Hemminger wrote: > On Fri, 14 Feb 2014 15:11:29 -0500 > Ymo Lists wrote: > >> "Enqueuing and dequeuing items fr

[dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ?

2014-02-17 Thread Stephen Hemminger
On Mon, 17 Feb 2014 14:49:47 +0200 jigsaw wrote: > Hi Stephen, > > Have you tried link time optimization on DPDK application? Does it > decrease the I-cache miss rate evidently? > > thx & > rgds, > -Qinglai > We use link-time-optimization without any problem. No big performance gain, but I re

[dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ?

2014-02-16 Thread Stephen Hemminger
On Fri, 14 Feb 2014 15:11:29 -0500 Ymo Lists wrote: > "Enqueuing and dequeuing items from an rte_ring using the rings-based PMD > may be slower than using the native rings API. This is because Intel? DPDK > Ethernet drivers make use of function pointers to call the appropriate > enqueue or dequeu

[dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ?

2014-02-14 Thread Jayakumar, Muthurajan
ev-boun...@dpdk.org] On Behalf Of Ymo Lists Sent: Friday, February 14, 2014 9:20 AM Cc: dev at dpdk.org Subject: Re: [dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ? Could you please point me to a sample doing this ? All the sample i have seen are initializing the eal

[dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ?

2014-02-14 Thread Ymo Lists
nces at dpdk.org] On Behalf Of Ymo Lists > Sent: Friday, February 14, 2014 9:20 AM > Cc: dev at dpdk.org > Subject: Re: [dpdk-dev] Is it possible to have dpdk running with no > dependency on a nic ? > > Could you please point me to a sample doing this ? All the sample i have >

[dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ?

2014-02-14 Thread Vivek Soni
Yes, It is very well possible to run DPDK without dependency on the NIC. But it all depends what you want to do. The two DPDK applications can communicate using the ring library provided by DPDK. In case there is no NIC, DPDK provides pure software based PMDs which can be used on systems without a

[dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ?

2014-02-14 Thread Ymo Lists
Could you please point me to a sample doing this ? All the sample i have seen are initializing the eal and that involves initializing the nics. Is there a sample ? Can you mock up some code ? plz plzzz :-) On Fri, Feb 14, 2014 at 3:42 AM, Vivek Soni wrote: > Yes, It is very well possible to ru

[dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ?

2014-02-13 Thread Ymo Lists
Is this a faq ??? On Wed, Feb 12, 2014 at 1:21 PM, Ymo Lists wrote: > 1) I have two apps that need to communicate on the same machine . Is it > possible to have these two apps communicating via dpdk without referencing > a nic ? > > 2) The apps need to run on an amazon vm. How can you run dpdk

[dpdk-dev] Is it possible to have dpdk running with no dependency on a nic ?

2014-02-12 Thread Ymo Lists
1) I have two apps that need to communicate on the same machine . Is it possible to have these two apps communicating via dpdk without referencing a nic ? 2) The apps need to run on an amazon vm. How can you run dpdk on an amazon vm with only one nic if the above is not possible ?