On 2013年09月15日 08:39, Saul Wold wrote:
On 09/14/2013 12:10 PM, Burton, Ross wrote:
On 14 September 2013 05:35, Khem Raj <[email protected]> wrote:
It does not come with out a price. Have you measured how much
performance
degradation it brings in ?
We need that to assess the trade off and also describe the machine
configuration where this option is helping
Agreed - there's a bug which is tracking this from Kai. As far as I'm
aware the failure cases are 32-bit hosts (3GB limit per process) or
64-bit hosts with limited memory. I suggested that we benchmark with
and without this - if the performance hit is measured in seconds then
we can probably enable it for this recipe out of the box.
Joe / Kai:
Please test as Khem and Ross suggest and report back with the results,
also please include the [YOCTO #5160].
run command 'time bitbake webkit-gtk -c compile' on the host which failed:
without patch till compile fails:
real 49m2.496s
user 102m47.789s
sys 31m18.698s
with the patch:
real 44m9.000s
user 106m45.182s
sys 30m53.223s
On the host build doesn't fail:
Without patch:
real 76m1.646s
user 86m36.704s
sys 38m39.103s
With patch:
real 63m36.193s
user 86m9.274s
sys 37m48.431s
It seems the link option doesn't increase the compile time.
Regards,
Kai
Ross, I am going to assign this to Joe.
Sau!
Ross
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--
Regards,
Neil | Kai Kang
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