mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2026-05-06 23:25:34 +02:00
Code Issues Projects Releases Packages Wiki Activity

Some POWER specific optimizations

Browse source 
Bug#18842925 : SET THREAD PRIORITY IN INNODB MUTEX SPINLOOP
Like "pause" instruction for hyper-threading at Intel CPUs,
POWER has special instructions only for hinting priority of hardware-threads.

Approved by Sunny in rb#6256

Backport of the 5.7 fix - c92102a6ef
(excluded cache line size patch)

Suggestion by Stewart Smith
This commit is contained in:
Yasufumi Kinoshita 2016-03-30 14:32:20 +11:00 • committed by Daniel Black
commit d4ba50477e
6 changed files with 35 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
config.h.cmake
View file

@ -225,6 +225,7 @@
#cmakedefine HAVE_PREAD 1
#cmakedefine HAVE_PAUSE_INSTRUCTION 1
#cmakedefine HAVE_FAKE_PAUSE_INSTRUCTION 1
#cmakedefine HAVE_HMT_PRIORITY_INSTRUCTION 1
#cmakedefine HAVE_RDTSCLL 1
#cmakedefine HAVE_READ_REAL_TIME 1
#cmakedefine HAVE_PTHREAD_ATTR_CREATE 1