Re: [USRP-users] timed transmission LATE issue

2018-07-05 Thread ROBIN TORTORA via USRP-users
--- Original > > Message--- > > > From: Derek Kozel < derek.ko...@ettus.com > > > mailto:derek.ko...@ettus.com > > > > To: Hojoon Yang < omnibu...@kaist.ac.kr > > > mailto:o

Re: [USRP-users] timed transmission LATE issue

2018-07-05 Thread Keith k via USRP-users
ieved), I should change > the OS in the host PC to low latency linux kernel. > > > Please correct me if I'm wrong. Thanks again! > > > > > > ---Original Message----------- > From: Derek Kozel > To: Hojoon Yang > CC: usrp-users

Re: [USRP-users] timed transmission LATE issue

2018-07-05 Thread Derek Kozel via USRP-users
age------- > From: Derek Kozel > To: Hojoon Yang > CC: usrp-users > Sent date: 2018-07-05 22:11:03 GMT +0900 (ROK) > Subject: Re: [USRP-users] timed transmission LATE issue > Hello Hojoon, > > You will have to profile your system to determine the minim

Re: [USRP-users] timed transmission LATE issue

2018-07-05 Thread Hojoon Yang via USRP-users
w latency linux kernel.Please correct me if I'm wrong. Thanks again! ---Original Message---From: Derek Kozel To: Hojoon Yang CC: usrp-users Sent date: 2018-07-05 22:11:03 GMT +0900 (ROK)Subject: Re: [USRP-users] timed tra

Re: [USRP-users] timed transmission LATE issue

2018-07-05 Thread Derek Kozel via USRP-users
Hello Hojoon, You will have to profile your system to determine the minimum delta that works reliably on your system, as well as choosing a definition for reliable. Networking stacks nearly always have stochastic delays due to the various context switches and scheduling issues with transferring da

[USRP-users] timed transmission LATE issue

2018-07-05 Thread Hojoon Yang via USRP-users
Hi,I am using USRP X310 with two UBX-160 daughterboards.In my application, I am using timed transmission, for example,start transmission at (usrp_get_time_now() + delta)My question is, what is the smallest delta value that can be successful in the *real world*? Theoretically, the delta can be an