Re^2: Perl threading problem?

[hdb]

Your comment might be correct, but it could also be interpreted in the sense of the OP in that changing the subroutine changes the number of threads being used.

From my experiments I do follow Athanasius' explanation.

[BrowserUk]

But even so, both threads do run eventually, it just takes a while before they get spawned:

C:\test>perl -Mthreads -Mbignum -wE"$_->join foreach map async { say t
+hreads->tid; 2**8-1 } , 1..2"
1
2

C:\test>perl -Mthreads -Mbignum -wE"$_->join foreach map async { say t
+hreads->tid; 2**85-1 } , 1..2"
1
2

C:\test>perl -Mthreads -Mbignum -wE"$_->join foreach map async { say t
+hreads->tid; 2**859-1 } , 1..2"
1
2

C:\test>perl -Mthreads -Mbignum -wE"$_->join foreach map async { say t
+hreads->tid; 2**8594-1 } , 1..2"
1
2

C:\test>perl -Mthreads -Mbignum -wE"$_->join foreach map async { say t
+hreads->tid; 2**85943-1 } , 1..2"
1
2

C:\test>perl -Mthreads -Mbignum -wE"$_->join foreach map async { say t
+hreads->tid; 2**859433-1 } , 1..2"
1
2

[BrowserUk]

Oh. I see. It is the use bignum that prevents it from reaching the point where the threads spawn.

How very strange ... though it's not the first time I've seen problems caused by these overload everything in sight modules.