PerfView indicates that significant time can be spent in this method when we create a Delegate:
The MusicStore application has over 130 managed assemblies loaded.
Eliminating this search can improve steady state transaction time by ~3%
|+ coreclr!COMDelegate::DelegateConstruct
We have to perform two IP lookups in DelegateConstruct
FCIMPL3(void, COMDelegate::DelegateConstruct, Object* refThisUNSAFE, Object* targetUNSAFE, PCODE method)
(line 1914)
219.0 | MethodDesc * pCreatorMethod = ExecutionManager::GetCodeMethodDesc((PCODE)pRetAddr);
(line 1933)
159.0 | MethodDesc *pMethOrig = Entry2MethodDesc(method, pRealMT);
Both of these calls eventually resolve to: ExecutionManager::GetRangeSection
RangeSection* ExecutionManager::GetRangeSection(TADDR addr)
. . . while (pCurr != NULL)
{
// See if addr is in [pCurr->LowAddress .. pCurr->HighAddress)
12.0 | if (pCurr->LowAddress <= addr)
{
// Since we are sorted, once pCurr->HighAddress is less than addr
// then all subsequence ones will also be lower, so we are done.
3.0 | if (addr >= pCurr->HighAddress)
{
// we'll return NULL and put pLast into pLastUsed
pCurr = NULL;
}
else
{
// addr must be in [pCurr->LowAddress .. pCurr->HighAddress)
_ASSERTE((pCurr->LowAddress <= addr) && (addr < pCurr->HighAddress));
// Found the matching RangeSection
// we'll return pCurr and put it into pLastUsed
pLast = pCurr;
}
break;
}
320.0 | pLast = pCurr;
57.0 | pCurr = pCurr->pnext;
}
PerfView indicates that significant time can be spent in this method when we create a Delegate:
The MusicStore application has over 130 managed assemblies loaded.
Eliminating this search can improve steady state transaction time by ~3%
|+ coreclr!COMDelegate::DelegateConstruct
We have to perform two IP lookups in DelegateConstruct
Both of these calls eventually resolve to: ExecutionManager::GetRangeSection