Re^5: Useful number of childs revisited

I think the problem is: P::FM doesn't start the next process exactly when the previous ends because the sleep granularity used is 1 whole second.

Try setting $pm->set_waitpid_blocking_sleep(0); and re-run the 4,8,16.32,50...

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority". I'm with torvalds on this

In the absence of evidence, opinion is indistinguishable from prejudice. Agile (and TDD) debunked

Comment on Re^5: Useful number of childs revisited Download Code

Replies are listed 'Best First'.
Re^6: Useful number of childs revisited by karlgoethebier (Abbot) on May 08, 2015 at 13:58 UTC
"...P::FM doesn't start the next process exactly..." It seems so :-) karl@host:~$ ./buk.pl 4 processes: 4 fork: 7.16779208183289 karl@host:~$ ./buk.pl 8 processes: 8 fork: 7.21501088142395 karl@host:~$ ./buk.pl 16 processes: 16 fork: 7.43911504745483 karl@host:~$ ./buk.pl 32 processes: 32 fork: 7.09555101394653 karl@host:~$ ./buk.pl 50 processes: 50 fork: 6.84368109703064 karl@host:~$ ./buk.pl 100 processes: 100 fork: 6.94914984703064 karl@host:~$ ./forker.pl 4 numbers: 2000 processes: 4 fork: 19.2249510288239 for: 33.1473791599274 karl@host:~$ ./forker.pl 50 numbers: 2000 processes: 50 fork: 19.63889503479 for: 33.3032410144806 [download] Thank you very much and best regards, Karl ŤThe Crux of the Biscuit is the Apostropheť	[reply] [d/l]

Replies are listed 'Best First'.

Re^6: Useful number of childs revisited
by karlgoethebier (Abbot) on May 08, 2015 at 13:58 UTC

"...P::FM doesn't start the next process exactly..."

It seems so :-)

karl@host:~$  ./buk.pl  4
processes: 4
fork: 7.16779208183289

karl@host:~$  ./buk.pl  8
processes: 8
fork: 7.21501088142395

karl@host:~$  ./buk.pl  16
processes: 16
fork: 7.43911504745483

karl@host:~$  ./buk.pl  32
processes: 32
fork: 7.09555101394653

karl@host:~$  ./buk.pl  50
processes: 50
fork: 6.84368109703064

karl@host:~$  ./buk.pl  100
processes: 100
fork: 6.94914984703064

karl@host:~$ ./forker.pl 4
numbers: 2000
processes: 4
fork: 19.2249510288239
for: 33.1473791599274

karl@host:~$ ./forker.pl 50
numbers: 2000
processes: 50
fork: 19.63889503479
for: 33.3032410144806
[download]

Thank you very much and best regards, Karl

ŤThe Crux of the Biscuit is the Apostropheť

[reply]
[d/l]