Gather Arena stats
edsiper at gmail.com
Tue Nov 26 16:20:41 PST 2013
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 ?
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.
> 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:
>> There is a relevant test program included with jemalloc:
> Eduardo Silva
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