[dev.garbage] code review 164010043: runtime: Linear map test give false negative due to GC.

runtime: Linear map test give false negative due to GC.
This test gives a false negative at an observed rate of 1 in a 1000
due to the fact that it runs for < 100 ms. allowing GC pauses to
warp the results. Changed the test so that it triggers only if it
remains non-linear for much larger problem sizes.

[rlh, 2014-10-27 17:57:28]

Fix to linear map test.

[rsc, 2014-10-27 18:09:46]

LGTM

[rlh, 2014-10-27 18:12:48]

Hello rsc@golang.org (cc: golang-codereviews@googlegroups.com),

I'd like you to review this change to the dev.garbage branch of
https://code.google.com/p/go/

[rlh, 2014-10-27 18:12:58]

*** Submitted as https://code.google.com/p/go/source/detail?r=9c8996c9926f ***

[dev.garbage] runtime: Linear map test give false negative due to GC.
This test gives a false negative at an observed rate of 1 in a 1000
due to the fact that it runs for < 100 ms. allowing GC pauses to
warp the results. Changed the test so that it triggers only if it
remains non-linear for much larger problem sizes.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://codereview.appspot.com/164010043

[gobot, 2014-10-27 18:14:54]

This CL appears to have broken the plan9-amd64-aram builder.
See http://build.golang.org/log/90c893f4110ff5887d4f0a7c5527791a2bc85db3