Seeing nearly 2x improvement. Amazing, great work.
> ./primecoind getmininginfo
{
"blocks" : 83381,
"chainspermin" : 58,
"currentblocksize" : 1000,
"currentblocktx" : 0,
"difficulty" : 9.26739043,
"errors" : "",
"generate" : true,
"genproclimit" : -1,
"roundsievepercentage" : 30,
"primespersec" : 33445,
"pooledtx" : 0,
"sievepercentage" : 10,
"sievesize" : 100000,
"testnet" : false
}