While testing the pgbench setshell command patch with -j option,
I found all threads use the same sequence of random value.
At first, I think we need to call srandom() in each thread,
but the manual says we should use random_r() instead of random()
on multi-threaded programs.
http://www.kernel.org/doc/man-pages/online/pages/man3/random_r.3.html
Should we replace random() to random_r()?
Some configure test might be needed.
Regards,
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Takahiro Itagaki
NTT Open Source Software Center
