Oracle uses stored procedure Insert loop to insert large data method ____oracle

When we test the data or do some kind of large amount of data, we can use the statement for mass insert,

My test, 100,000 data insertion time of 7 seconds or so, 1 million record insertion time of 65 seconds, 2 million inserted into 150 seconds.

My machine is configured for CPU I5 2450M memory 4G hard drive west data 500G 5400 to WIN7 64 bit, database for Oracle 11G 64 bit Insert test tool for Pl\sql 9.0

declare
i integer;--Define variable
begin
I: = 1;
Loop/
* Insert data/inserts into
USER (YHBH, YHMC, YHMM, Bmbh, Yhzt, ZCSJ, ZJDLSJ, Yhks, YHZW, yhms)
values
_char (' 99999999 ' + i),
' username ',
' password ',
' 1 ',
' 1 ',
sysdate,
sysdate,
' Research and Development Center ',
' product manager ',
' senior Software engineer ';
/* Parameter Increment * *
I: = i + 1;
/* Stop condition *
/exit when i > 2000000;
End Loop;
commit;
End