10-Mar-2013 17:04, Druzhinin Alexandr пишет:
On 10.03.2013 19:45, Dmitry Olshansky wrote:
10-Mar-2013 15:06, simendsjo пишет:
I haven't used valgrind/cachegrind on C/C++ programs before, but I'm
pretty sure it doesn't behave as expected on D code. I found this page
to fix the mangling issue: http://wiki.dlang.org/Other_Dev_Tools, but
all callgraphs is empty.
I've used it just yesterday with great success. At least callgrind and
massif definitely work.
Dmitry, using massif I get tree like this (there are normal informative
branches too, of course):
|
->26.85% (10,364,525B) 0xD418247: ???
| ->09.86% (3,807,325B) 0x1442E08E: ???
| | ->02.99% (1,155,831B) 0x145188A6: ???
| | | ->02.99% (1,155,831B) 0x3E: ???
| | | ->02.99% (1,155,831B) 0xEB70BC7: ???
| | | ->02.99% (1,155,831B) 0x145187CE: ???
| | | ->02.99% (1,155,831B) 0x145188A6: ???
how to know who the hell is used my memory? who is Mr. '???'?
can building phobos and druntime help with it?
Here is what I see when I run it on optimized binary compiled with ldc:
http://sdrv.ms/ZrFgh9
Same compiled with gdc:
http://sdrv.ms/12FPPF3
And dmd also optimized:
http://sdrv.ms/15Gj7RF
And it looks good.
I didn't bother to check the text dump in depth but here is one slice:
n6: 41816 (heap allocation functions) malloc/new/new[], --alloc-fns, etc.
n1: 8208 0x540209: _D2gc3gcx4Pool10initializeMFmbZv (in
/home/dmitry/Dscanner/dscanner-dmd)
n1: 8208 0x53EBEB: _D2gc3gcx3Gcx7newPoolMFmbZPS2gc3gcx4Pool (in
/home/dmitry/Dscanner/dscanner-dmd)
n1: 8208 0x53C33B: _D2gc3gcx2GC12mallocNoSyncMFmkPmZPv (in
/home/dmitry/Dscanner/dscanner-dmd)
n1: 8208 0x53C1F1: _D2gc3gcx2GC6mallocMFmkPmZPv (in
/home/dmitry/Dscanner/dscanner-dmd)
n1: 8208 0x51CABB: gc_malloc (in /home/dmitry/Dscanner/dscanner-dmd)
n1: 8208 0x51E7A6: _d_newclass (in
/home/dmitry/Dscanner/dscanner-dmd)
n1: 8208 0x545123: thread_attachThis (in
/home/dmitry/Dscanner/dscanner-dmd)
n1: 8208 0x5450B5: thread_init (in
/home/dmitry/Dscanner/dscanner-dmd)
n1: 8208 0x53B72B: gc_init (in /home/dmitry/Dscanner/dscanner-dmd)
n1: 8208 0x51E710: _
....
So I guess your Mr. X is D's GC that reserves about 1Mb at start.
--
Dmitry Olshansky
