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Merge pull request #2060 from sipa/parallel

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Parallel script verification
This commit is contained in:
Gavin Andresen 2013-01-17 16:58:58 -08:00
commit 0e31ae9818
9 changed files with 342 additions and 41 deletions
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20
src/init.cpp
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@ -84,6 +84,10 @@ void Shutdown(void* parg)
fShutdown = true;
nTransactionsUpdated++;
bitdb.Flush(false);
{
LOCK(cs_main);
ThreadScriptCheckQuit();
}
StopNode();
{
LOCK(cs_main);
@ -303,6 +307,7 @@ std::string HelpMessage()
" -checklevel=<n> " + _("How thorough the block verification is (0-4, default: 3)") + "\n" +
" -loadblock=<file> " + _("Imports blocks from external blk000??.dat file") + "\n" +
" -reindex " + _("Rebuild blockchain index from current blk000??.dat files") + "\n" +
" -par=N " + _("Set the number of script verification threads (1-16, 0=auto, default: 0)") + "\n" +
"\n" + _("Block creation options:") + "\n" +
" -blockminsize=<n> " + _("Set minimum block size in bytes (default: 0)") + "\n" +
@ -484,6 +489,15 @@ bool AppInit2()
fDebug = GetBoolArg("-debug");
fBenchmark = GetBoolArg("-benchmark");
// -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency
nScriptCheckThreads = GetArg("-par", 0);
if (nScriptCheckThreads == 0)
nScriptCheckThreads = boost::thread::hardware_concurrency();
if (nScriptCheckThreads <= 1)
nScriptCheckThreads = 0;
else if (nScriptCheckThreads > MAX_SCRIPTCHECK_THREADS)
nScriptCheckThreads = MAX_SCRIPTCHECK_THREADS;
// -debug implies fDebug*
if (fDebug)
fDebugNet = true;
@ -579,6 +593,12 @@ bool AppInit2()
if (fDaemon)
fprintf(stdout, "Bitcoin server starting\n");
if (nScriptCheckThreads) {
printf("Using %u threads for script verification\n", nScriptCheckThreads);
for (int i=0; i<nScriptCheckThreads-1; i++)
NewThread(ThreadScriptCheck, NULL);
}
int64 nStart;
// ********************************************************* Step 5: verify wallet database integrity