d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Properly align struct multilist_sublist to cache line.

Browse Source 
Manual Illumos alignment does not fit us due to different kmutex_t size.

MFC after:	1 week
Sponsored by:	iXsystems, Inc.
This commit is contained in:
Alexander Motin 2019-06-14 17:09:39 +00:00
parent e924cb6ff9
commit 284e53a401
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=349035
1 changed files with 3 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/multilist.h
View File

@ -44,11 +44,10 @@ struct multilist_sublist {
*/
list_t mls_list;
/*
* Pad to cache line (64 bytes), in an effort to try and prevent
* cache line contention.
* Pad to cache line, in an effort to try and prevent cache line
* contention.
*/
uint8_t mls_pad[24];
};
} __aligned(CACHE_LINE_SIZE);
struct multilist {
/*