2.99% slowdown after upgrading to 0.3.7 (from 0.3.4)

[Páll Haraldsson]

[Note, not claiming a non-performance bug.]

Are extra memory allocations (and proportional slowdown) something you want to know about (in global scope)? Two lines of the code where affected.

@time @devec n=sqrt(sum(rn5.*rn5./((n-5)./5)./5.1))

Note when in a function the line has no memory allocation (and I guess no slowdown). Would that matter and/or if a slowdown is only minor?

A line similar to this also slowed down:

@time r5=r[1:(n-5)]+r[2:(n-4)]

This line still has memory allocation when put in i function, but not as much and maybe as much as in previous Julia versoin (I don't know as it is gone).

Other updates at the same time shouldn't have interferred (but what other updates can in general increase (memory allocations)?):

[could say glibc upgrade have done similar things?]

2015-03-25 12:59:01 upgrade libgnutls-openssl27:amd64 2.12.23-12ubuntu2.1 2.12.23-12ubuntu2.2

2015-03-25 12:59:01 upgrade libgnutls26:amd64 2.12.23-12ubuntu2.1 2.12.23-12ubuntu2.2

2015-03-25 12:59:02 upgrade julia:amd64 0.3.4~trusty1 0.3.7-trusty1

2015-03-25 12:59:07 upgrade unity-settings-daemon:amd64 14.04.0+14.04.20140606-0ubuntu1 14.04.0+14.04.20140606-0ubuntu2

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Palli.