Performance issue of SUComponentDefinitionRef for C API


#1

Hi Experts,

I try to create 600 SUComponentDefinitionRef and add it into the model. I find that the following Way 1(~10s) has the better performance than Way 2(~34s) when add 600 SUComponentDefinitionRef into the model. Is it expected? From my initial expectation, I think that Way 2 should have the better performance than Way1.

Also, I want to know whether it is expected that creating 600 SUComponentDefinitionRef and adding it into the model will cost ~10s.

Way 1:

clock_t init, final;
init = clock(); 

int compsize = 600;
for (int i = 0 ; i < compsize; ++i)
{
    SUComponentDefinitionRef SUCompDef = SU_INVALID;
    SUComponentDefinitionCreate(&SUCompDef);
    SUModelAddComponentDefinitions(SUModel, 1, &SUCompDef);
}

final = clock() - init;
std::cout <<"Translation time1: " << (double)final / ((double)CLOCKS_PER_SEC) << "s" << std::endl;

Way 2:

SUComponentDefinitionRef* pSiComp = new SUComponentDefinitionRef[compsize];
for (int i = 0 ; i < compsize; ++i)
{
     SUComponentDefinitionRef SUCompDef = SU_INVALID;
     SUComponentDefinitionCreate(&SUCompDef);
     pSiComp[i] = SUCompDef;
}

clock_t init2, final2;
init2 = clock(); 

SUModelAddComponentDefinitions(SUModel, compsize, pSiComp);

final2 = clock() - init2;
std::cout <<"Translation time2: " << (double)final2 / ((double)CLOCKS_PER_SEC) << "s" << std::endl;

delete [] pSiComp;

#2

Hmm… that is interesting. I’m filing an internal issue for investigation on this one. (SU-31146)


#3

Hi tt_su,

Is there any progress for this issue?


#4

I’m afraid I have no news as of this moment.