Re: [boost] [Interprocess] Lengthy test runtimes

From: K. Noel Belcourt (kbelco_at_[hidden])
Date: 2007-08-07 00:36:46

Hi Ion,

On Aug 6, 2007, at 10:08 PM, K. Noel Belcourt wrote:

> On Jul 25, 2007, at 12:39 AM, Ion Gaztañaga wrote:
>
>> K. Noel Belcourt wrote:
>>> The named_recursive test in boost.interprocess takes an excessive
>>> amount of time to run.
>> This sounds very strange. In my poor AMD this takes only a few  
>> seconds
>> ;-) Can you give any additional hint on what can be happening?
>
> Well it doesn't exhibit this hang in any consistent fashion.  Some  
> nights it goes right though, other times it hangs (like tonight).   
> I hooked named_recursive in gdb and dumped the call stack, it's  
> attached.  Anything else I can do to help debug this?

I should have mentioned that I ran ipcs, here's the output.

[~]$ ipcs -a

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status
0x00000000 0          root      777        94208      0
0x00000000 65537      root      777        94208      1

------ Semaphore Arrays --------
key        semid      owner      perms      nsems

------ Message Queues --------
key        msqid      owner      perms      used-bytes   messages

What kind of IPC object does this test create?  Why is there no IPC  
object in the kernel data structures?   I don't believe there's  
anything running on my system that would call ipcrm.  There's two  
copies of this test currently running on my system (gcc-3.4.3 and  
gcc-4.0.1), would that matter?

19303 kbelco    25   0 14944 1380 1188 R 98.9  0.0  40:00.53  
named_recursive
19328 kbelco    25   0 14988 1360 1176 R 98.9  0.0  34:25.73  
named_recursive

-- Noel