Hi, Xiaoming! If I recall correctly, field sorting incurs some performance degradations on some of SPECjvm2008 benchmarks. But it helps SPECjbb2005 a lot, say +1-2%. Here's the issue [1], where these options were introduced.
Thanks, Aleksey. [1] https://issues.apache.org/jira/browse/HARMONY-5040 On Fri, Dec 19, 2008 at 10:25 AM, xiaoming gu <[email protected]> wrote: > Hi, all. I'm studying fields' offsets these days. I find there are some > ordering operations for instance fields and static fields seperately in > assign_offsets_to_fields() in Prepare.cpp. These orderings are according to > field size to reduce internal fragmentation. I don't know why such > operations are turned off by default. Is there any concern I missed? Thanks. > > Xiaoming > > -- > I believe that unarmed truth and unconditional love will have the final word > in reality. --Martin Luther King Jr. >
