[Discuss-gnuradio] gnuradio radio test repeatability

[address@hidden]

I downloaded gnuradio off of github. Hopefully this is sufficient
identification of the version:

"Latest commit 37d373a  14 hours ago @jmcorgan jmcorgan Merge branch
'maint'"

I noticed ZMQ failed, which is odd since it worked before. I reran the
test and ZMQ worked. This makes me wonder if some variable isn't being
set.

Here are the results when ZMQ worked:

Total Test time (real) = 210.83 sec

The following tests FAILED:
         86 - qa_polar_encoder_systematic (Failed)
         89 - qa_polar_encoder (Failed)
         91 - qa_polar_decoder_sc (Failed)
         92 - qa_polar_decoder_sc_list (Failed)
         95 - qa_polar_decoder_sc_systematic (Failed)
        162 - qa_packet_format (Failed)
Errors while running CTest
Makefile:72: recipe for target 'test' failed
------------------------------

Here we have ZMQ failing:

Total Test time (real) = 206.96 sec

The following tests FAILED:
         86 - qa_polar_encoder_systematic (Failed)
         89 - qa_polar_encoder (Failed)
         91 - qa_polar_decoder_sc (Failed)
         92 - qa_polar_decoder_sc_list (Failed)
         95 - qa_polar_decoder_sc_systematic (Failed)
        162 - qa_packet_format (Failed)
        215 - qa_zeromq_sub (Failed)
        216 - qa_zeromq_pub (Failed)
Errors while running CTest
Makefile:72: recipe for target 'test' failed
make: *** [test] Error 8
----------------------------

I thought I'd try setting the affinity to one CPU with results:

taskset 0x1 make test
Total Test time (real) = 206.35 sec

The following tests FAILED:
         86 - qa_polar_encoder_systematic (Failed)
         89 - qa_polar_encoder (Failed)
         91 - qa_polar_decoder_sc (Failed)
         92 - qa_polar_decoder_sc_list (Failed)
         95 - qa_polar_decoder_sc_systematic (Failed)
        215 - qa_zeromq_sub (Failed)
        216 - qa_zeromq_pub (Failed)
Errors while running CTest
Makefile:72: recipe for target 'test' failed
make: *** [test] Error 8
------------------

Well I see test 162 worked this time. Of course, is this repeatable?
Next test:

taskset 0x1 make test
Total Test time (real) = 206.65 sec

The following tests FAILED:
         86 - qa_polar_encoder_systematic (Failed)
         89 - qa_polar_encoder (Failed)
         91 - qa_polar_decoder_sc (Failed)
         92 - qa_polar_decoder_sc_list (Failed)
         95 - qa_polar_decoder_sc_systematic (Failed)
        159 - qa_header_payload_demux (Failed)
        162 - qa_packet_format (Failed)
        215 - qa_zeromq_sub (Failed)
        216 - qa_zeromq_pub (Failed)
Errors while running CTest
Makefile:72: recipe for target 'test' failed
make: *** [test] Error 8
-----------------

Not repeatable, plus an additional test (159) failed.

I don't think affinity is an issue. I ran the gnu
system monitor and swap was never used. The PC has 8Gbytes and the
maxium memory used never exceeded 1.9G. 

I'm going to do a memtest on the PC, but I kind of doubt there is a ram
issue.