Accept negative -par values to leave N CPUs free.

This commit is contained in:
David Serrano 2013-04-29 19:35:47 +02:00
parent 33029bcedd
commit ebd7e8bf91

View File

@ -349,7 +349,7 @@ std::string HelpMessage()
" -txindex " + _("Maintain a full transaction index (default: 0)") + "\n" + " -txindex " + _("Maintain a full transaction index (default: 0)") + "\n" +
" -loadblock=<file> " + _("Imports blocks from external blk000??.dat file") + "\n" + " -loadblock=<file> " + _("Imports blocks from external blk000??.dat file") + "\n" +
" -reindex " + _("Rebuild block chain index from current blk000??.dat files") + "\n" + " -reindex " + _("Rebuild block chain index from current blk000??.dat files") + "\n" +
" -par=<n> " + _("Set the number of script verification threads (1-16, 0=auto, default: 0)") + "\n" + " -par=N " + _("Set the number of script verification threads (up to 16, 0=auto, negative=leave N CPUs free, default: 0)") + "\n" +
"\n" + _("Block creation options:") + "\n" + "\n" + _("Block creation options:") + "\n" +
" -blockminsize=<n> " + _("Set minimum block size in bytes (default: 0)") + "\n" + " -blockminsize=<n> " + _("Set minimum block size in bytes (default: 0)") + "\n" +
@ -525,8 +525,8 @@ bool AppInit2(boost::thread_group& threadGroup)
// -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency // -par=0 means autodetect, but nScriptCheckThreads==0 means no concurrency
nScriptCheckThreads = GetArg("-par", 0); nScriptCheckThreads = GetArg("-par", 0);
if (nScriptCheckThreads == 0) if (nScriptCheckThreads <= 0)
nScriptCheckThreads = boost::thread::hardware_concurrency(); nScriptCheckThreads += boost::thread::hardware_concurrency();
if (nScriptCheckThreads <= 1) if (nScriptCheckThreads <= 1)
nScriptCheckThreads = 0; nScriptCheckThreads = 0;
else if (nScriptCheckThreads > MAX_SCRIPTCHECK_THREADS) else if (nScriptCheckThreads > MAX_SCRIPTCHECK_THREADS)