linuxaudio.org

>

quoted text
> Here's how to run the test:

>

> svn co http://svn.samalyse.com/misc/rbtest

> cd rbtest

> make test

>

> It tests the ringbuffers from (all included) jack, portaudio and portaudio

> without barriers. That can take up to 6 minutes. It has to be a bit long due to

> the probabilistic nature of failures.

>

> LAUsers could you please run this test on various architectures? Especially

> PowerPC single-cpu and SMP, x86 single-cpu, SMP, in various flavors, etc...

>

Here's my result.
BTW, non of the machines I tested on had the sched_getcpu function, so I

added "#define sched_getcpu getpid" to the file.
-------------------

Machine 1: 8 X (core Intel(R) Xeon(R) CPU           E5320  @ 1.86GHz)
=== Jack ringbuffer test ===

starting ringbuffer stress test (2 minutes max)

buffer size (bytes): 512

array size (bytes): 256

reader started on cpu 17602

writer started on cpu: 17602

60288 != 60160 at offset 0

failure in chunk 373678
Rest was success
-------------------

Machine 2: 1 X (AMD Sempron(TM) 3000+)

Success

Success

Success
-------------------

Machine 3: 3 X (Intel(R) Xeon(TM) CPU 2.80GHz)
=== Jack ringbuffer test ===

starting ringbuffer stress test (2 minutes max)

buffer size (bytes): 512

array size (bytes): 256

reader started on cpu 27916

writer started on cpu: 27916

16640 != 16512 at offset 0

failure in chunk 2300164
Rest was success
-------------------

Machine 4: SunOs 5.8 sun4u sparc SUNW,Ultra-4 Solaris

:-)
The jack test compiled fine.
Portaudio version:

"portaudio/pa_ringbuffer.c", line 121: #error: Memory barriers are not defined on this system. You can still compile by defining ALLOW_SMP_DANGERS, but SMP s
Also:

  $ ./test-int-array-jack

starting ringbuffer stress test (2 minutes max)

Segmentation Fault
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