Re: [Numpy-discussion] How to check for memory leaks?

2016-02-23 Thread Sebastian Berg 
On Di, 2016-02-23 at 12:36 -0700, Charles R Harris wrote:
> Hi All,
> 
> I'm suspecting a possible memory leak in 1.11.x, what is the best way
> to check for that?
> 

Would like to learn better methods, but I tried valgrind with trace
origins and full leak check, just thinking maybe it shows something.
Unfortunately, I got the error below midway, I ran it before
successfully (with only minor obvious leaks due to things like module
wide strings) I think. My guess is, the error does not say much at all,
but I have no clue :) (running without track-origins now, maybe it
helps).

- Sebastian

Error:

VEX temporary storage exhausted.
Pool = TEMP,  start 0x38f91668 curr 0x39456190 end 0x394561a7 (size
500)

vex: the `impossible' happened:
   VEX temporary storage exhausted.



> Chuck
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Re: [Numpy-discussion] How to check for memory leaks?

2016-02-23 Thread Antoine Pitrou 
On Tue, 23 Feb 2016 12:36:00 -0700
Charles R Harris  wrote:
> Hi All,
> 
> I'm suspecting a possible memory leak in 1.11.x, what is the best way to
> check for that?

If that is due to a reference leak, you can use sys.getrefcount() or
weakref.ref().

Otherwise you may want to change Numpy to go through PyMem_RawMalloc /
PyMem_RawCalloc / PyMem_RawRealloc / PyMem_RawFree on recent Pythons,
so as to have Numpy-allocated memory accounted by the tracemalloc
module.

(https://github.com/numpy/numpy/pull/5470 may make it more
palatable ;-))

Regards

Antoine.


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[Numpy-discussion] How to check for memory leaks?

2016-02-23 Thread Charles R Harris 
Hi All,

I'm suspecting a possible memory leak in 1.11.x, what is the best way to
check for that?

Chuck
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