review(XXS): 7159766: Tiered compilation causes performance regressions

Srinivas Ramakrishna ysr1729 at gmail.com
Fri Apr 6 18:42:05 PDT 2012


Hi Igor, were the anomalies only wrt start-up, or were they also in longer
run performance numbers? The bug's not yet visible on bugs.sun.com, but I
guess I can get the info later when the bug shows up there.

thanks!
-- ramki

On Fri, Apr 6, 2012 at 4:14 PM, Igor Veresov <igor.veresov at oracle.com>wrote:

>  It's been decided to turn tiered compilation off by default in 7u4
> because of the performance anomalies with Oracle FMW.
>
> Webrev: http://cr.openjdk.java.net/~iveresov/7159766/webrev.00/
>
> Thanks!
> igor
>
>
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