[hibernate-dev] Performance work update

[Sanne Grinovero]

Hey all,

we've been working on various performance optimisations for Hibernate
ORM; some were large and complex, some others where very small little
things.

I've been measuring impact step by step so far; quite happy to see the
"combined" results are better than what I was hoping:

Hibernate ORM 5.4.4-preview:  avgt  4469.770 ± 35.198  us/op
Hibernate ORM 5.4.3.Final:       avgt  6271.767 ± 92.448  us/op

Memory allocation also looks great:
  Memory allocated per TLABs: 22.02 GB -> 15.46 GB
  Allocation rate for TLBAs: 752.31 MB/s -> 528.40 MB/s

(it's not worth looking at anything else than TLAB as we don't use other spaces)

This is just a little update teaser; we should blog about it in more
extended form.  AFAIK Steve is already writing something to describe
the new Enhanced Proxies feature; that certainly is the main thing -
we could either combine the info in one blog or write a short series.

Thanks,
Sanne