Gather Arena stats

[Eduardo Silva]

I have implemented a similar code and its working great. Now an extra
question: i would like to spawn a thread to monitor the threads
allocation/deallocations, can i access this data from a different thread ?,
if so, is there any API or example available ?

thanks again.


On Tue, Nov 26, 2013 at 2:10 PM, Eduardo Silva <edsiper at gmail.com> wrote:

> thanks for your help!, thats the info that i need.
>
> best
>
>
> On Tue, Nov 26, 2013 at 2:01 PM, Jason Evans <jasone at canonware.com> wrote:
>
>> On Nov 26, 2013, at 11:40 AM, Eduardo Silva <edsiper at gmail.com> wrote:
>>
>> i am interested into gather memory usage per Linux thread, as i am using
>> jemalloc i think this can be done quering the arenas per thread. if i am
>> correct, do you have some code example that accomplish something similar to
>> this ?
>>
>>
>> Threads don't own memory; allocated regions can be shared among threads,
>> and allocation/deallocation can be split between threads.  That said,
>> jemalloc does track total volume of allocation and deallocation on a per
>> thread basis, so you can derive the information you want as long as you
>> account for allocated regions that are shared among threads.  Take a look
>> at the "thread.allocated" and "thread.deallocated" mallctl() interfaces in
>> the man page:
>>
>>
>> http://www.canonware.com/download/jemalloc/jemalloc-latest/doc/jemalloc.html
>>
>> There is a relevant test program included with jemalloc:
>>
>> https://github.com/jemalloc/jemalloc/blob/dev/test/allocated.c
>>
>> Jason
>>
>
>
>
> --
> Eduardo Silva
> http://edsiper.linuxchile.cl
> http://monkey-project.com
>



-- 
Eduardo Silva
http://edsiper.linuxchile.cl
http://monkey-project.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://jemalloc.net/mailman/jemalloc-discuss/attachments/20131126/2a261ed4/attachment.html>