[SCM] Samba Shared Repository - branch v4-18-test updated

[Jule Anger]

The branch, v4-18-test has been updated
       via  bca78e31c69 WHATSNEW: SMB Server performance improvements
      from  b8299405352 lib:util: File descriptor being closed repeatedly.

https://git.samba.org/?p=samba.git;a=shortlog;h=v4-18-test


- Log -----------------------------------------------------------------
commit bca78e31c696ffae0f71d88300c6a7b675c76498
Author: Stefan Metzmacher <metze at samba.org>
Date:   Fri Feb 24 15:39:35 2023 +0100

    WHATSNEW: SMB Server performance improvements
    
    Signed-off-by: Stefan Metzmacher <metze at samba.org>
    
    Autobuild-User(v4-18-test): Jule Anger <janger at samba.org>
    Autobuild-Date(v4-18-test): Wed Mar  1 10:16:41 UTC 2023 on atb-devel-224

-----------------------------------------------------------------------

Summary of changes:
 WHATSNEW.txt | 13 +++++++++++++
 1 file changed, 13 insertions(+)


Changeset truncated at 500 lines:

diff --git a/WHATSNEW.txt b/WHATSNEW.txt
index a035daeef79..94bb80c74e5 100644
--- a/WHATSNEW.txt
+++ b/WHATSNEW.txt
@@ -16,6 +16,19 @@ UPGRADING
 NEW FEATURES/CHANGES
 ====================
 
+SMB Server performance improvements
+-----------------------------------
+
+The security improvements in recent releases
+(4.13, 4.14, 4.15, 4.16), mainly as protection against symlink races,
+caused performance regressions for metadata heavy workloads.
+
+While 4.17 already improved the situation quite a lot,
+with 4.18 the locking overhead for contended path based operations
+is reduced by an additional factor of ~ 3 compared to 4.17.
+It means the throughput of open/close
+operations reached the level of 4.12 again.
+
 More succinct samba-tool error messages
 ---------------------------------------
 


-- 
Samba Shared Repository