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by ampu
Sun Aug 28, 2016 11:10 am
Forum: General programming discussion
Topic: Error building crosstol-ng for RaspberryPi
Replies: 3
Views: 1225

Re: Error building crosstol-ng for RaspberryPi

I have solved installing crosstool-ng 1.22
by ampu
Thu Aug 25, 2016 6:20 pm
Forum: General programming discussion
Topic: Error building crosstol-ng for RaspberryPi
Replies: 3
Views: 1225

Re: Error building crosstol-ng for RaspberryPi

Hi Andy, thank you for your answer. I have tried with ct-ng list-samples, concretely with ct-ng armv6-rpi-linux-gnueabi and then when I have typed ct-ng build I have these errors, after 13.54 minutes of building: [ERROR] >> [ERROR] >> Build failed in step 'Installing C library headers & start files'...
by ampu
Thu Aug 25, 2016 10:04 am
Forum: General programming discussion
Topic: Error building crosstol-ng for RaspberryPi
Replies: 3
Views: 1225

Error building crosstol-ng for RaspberryPi

Hi, I am trying to install crosstool-ng to run DDS applications on my Pi following this HOWTO: https://community.rti.com/content/forum-topic/howto-run-rti-connext-dds-raspberry-pi In epigraph 5, it is exaplained HOWTO proceed to install, configure and build Cross-compiler crosstool-ng. However, when...
by ampu
Sun Apr 10, 2016 3:21 pm
Forum: C/C++
Topic: Time measure UDP socket Raspi<--->PC
Replies: 6
Views: 1558

Re: Time measure UDP socket Raspi<--->PC

I'm afraid you have made a fundamental mistake. UDP packets are "shouty" thus no way to know their time back. TCP is worse. You can get an average, that is all. I´m trying to obtain the performance in a Client (PC i7 3.4 GHz Kubuntu 15.04) - Server (RaspberryPi 700 Mhz Raspbian Jessie) architecture...
by ampu
Fri Apr 08, 2016 7:43 am
Forum: C/C++
Topic: Time measure UDP socket Raspi<--->PC
Replies: 6
Views: 1558

Re: Time measure UDP socket Raspi<--->PC

It looks like you're using the wrong clock function to measure time differences. CLOCK_REALTIME can jump around while CLOCK_MONOTONIC is the absolute machine time. You can read about it here: http://stackoverflow.com/questions/3523442/difference-between-clock-realtime-and-clock-monotonic I already ...
by ampu
Wed Apr 06, 2016 10:34 am
Forum: C/C++
Topic: Time measure UDP socket Raspi<--->PC
Replies: 6
Views: 1558

Time measure UDP socket Raspi<--->PC

I´m trying to obtain the performance in a Client (PC i7 3.4 GHz Kubuntu 15.04) - Server (RaspberryPi 700 Mhz Raspbian Jessie) architecture with sockets, measuring the spent time sending and receiving with at least microseconds precision. Concretely, I have a client (PC) that makes 100 times: Send UD...

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