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Hello, I'm trying to get Streamline in DS-5.17 working with some Pandaboards: I have an A3, an A4 and an ES B2. I'm using kernel version 3.13.3-x10, and my base image is a Debian build from Robert C Nelson's repo http://rcn-ee.net/deb/rootfs/wheezy/debian-7.4-console-armhf-2014-02-16.tar.xz. When I run the standard image (with CONFIG_ENABLE_DEFAULT_TRACERS not set), I get samples in Streamline, but the cache, clock and instruction traces are all zero and don't update. When I turn on CONFIG_ENABLE_DEFAULT_TRACERS and build a new kernel, then Streamline can't connect to the gator daemon. Am I still missing a setting in the kernel (or other config)? I enabled everything I saw in the "Using ARM Streamline" document. This same version of DS-5 works on a Beaglebone running Anstrom 2013.12 (kernel 3.8.13). I'd like to get Streamline working with the A8, A9 and A15 since we have projects using all those processors.
---Jon M
So I think gatord is running, but for some reason it does not respond to the TCP connection. Can you please try running gatord with strace (strace -ttvffo strace.out ./gatord) and sharing the results? Perhaps it's getting stuck somewhere in the initialization.
I've been trying to get my ES board to work better, so I built a new kernel with CPU_FREQ, CPUIDLE disabled and DEFAULT_TRACERS enabled. When I tried gatord to capture an strace with this kernel, it seems to work better, but my "clock" trace says 45MHz. Do you think that could have been the problem? When I disable cpufreq, do I need to set the frequency someplace else?
If you look at gator_trace_power_create_files in gator_trace_power.c in the gator driver it disallows reading Clock:Frequency if it returns zero. It may need an additional check for your configuration.