[icecast-dev] icecast-1.3.12 on SunOS

[Titus v.d. Malsburg]

Hi all,

it seem that I figured out what the problems are:  configure selects 
"select" instead of "nanosleep" for sleepig the threads in function 
utility.c:my_sleep.  Sadly select doesn't work correctly for obscure 
reasons.

The second thing is, that I _have_ nanosleep in the system.  But 
configure just looks for it in time.h and librt.  But on Solaris2.6 
nanosleep is in libposix4.  Once I told the Makefile to do -lposix4 
everything went just perfect.

  Titus

<p><p>Titus v. d. Malsburg wrote:
> Thomas,
> 
> unfortunately it does slow down the machine.  I am working in a chroot 
> enviroment and there are other users on the same box.  Therefore it's of 
> special importance that I don't consume the cpu by myself.
> 
>  Titus
> 
> Am Sonntag den, 15. September 2002, um 23:37, schrieb Thomas Vander 
> Stichele:
> 
>> Apart from what probably is a bad assumption in the code, does it 
>> actually
>> present a problem ? Meaning, even though it indicates 100% cpu usage, 
>> does
>> it slow down your machine ? Maybe it's just spinning idly.  See what
>> happens when other cpu eaters run.  If icecast plays nicely, it's 
>> probably
>> not a big deal.
> 
> ..
> 
>>>> I compiled icecast-1.3.12 on a box with uname -a: SunOS star19 5.6
>>>> Generic_105181-31 sun4u sparc SUNW,UltraSPARC-IIi-cEngine.  The result
>>>> works properly.  The problem is that the icecast process generates 100%
>>>> cpu load even if no sources and no clients are connected.
>>>>
>>>> If I trace the process using truss, I get the following:
>>>>
>>>> ...
>>>> open("/dev/zero", O_RDWR)                       = 1
>>>> mmap(0x00000000, 16384, PROT_READ|PROT_WRITE|PROT_EXEC,
>>>> MAP_PRIVATE|MAP_NORESERV
>>>> E, 1, 0) = 0xEEBE0000
>>>> close(1)                                        = 0
>>>> mprotect(0xEEBE0000, 8192, PROT_NONE)           = 0
>>>> lwp_create(0xEF40FAF0, 0x00C0, 0xEEBE3E04)      = 6
>>>> lwp_continue(6)                                 = 0
>>>> lwp_create(0x00000001, 0x4000, 0xEF40FC8C)      = 0
>>>> lwp_schedctl(SC_STATE|SC_BLOCK, -1, 0xEEBE3D0C) = 0
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> ...
>>>> many times
>>>> ...
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> poll(0xEFFFD750, 1, 30)                         = 0
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> time()                                          = 1031909555
>>>> ...
>>>> time()                                          = 1031909556
>>>> poll(0xEF4ABA88, 0, 500)                        = 0
>>>> time()                                          = 1031909556
>>>> recvfrom(2, 0xEF4AFBA0, 8191, 0, 0x00063F38, 0xEF4ADB9C) Err#11 EAGAIN
>>>> time()                                          = 1031909556
>>>> lwp_sema_post(0xEF4B1E78)                       = 0
>>>> lwp_sema_wait(0xEF4B1E78)                       = 0
>>>> lwp_mutex_unlock(0xEF56B280)                    = 0
>>>> lwp_mutex_lock(0xEF56B280)                      = 0
>>>> time()                                          = 1031909556
>>>> time()                                          = 1031909556
>>>> time()                                          = 1031909556
>>>> time()                                          = 1031909556
>>>> lwp_sema_post(0xEF4B1E78)                       = 0
>>>> lwp_sema_wait(0xEF4B1E78)                       = 0
>>>> lwp_mutex_unlock(0xEF56B280)                    = 0
>>>> lwp_mutex_lock(0xEF56B280)                      = 0
>>>> time()                                          = 1031909556
>>>
> 
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