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

Increase the maximum size of the journaled soft-updates journal.

Browse Source 
The size of the journaled soft-updates journal should be big enough
to hold two minutes of filesystem metadata-update activity. The
maximum size of the soft updates journal was set in the 1990s. At
the time it was assummed that disk arrays would top out at 16 drives
and disk writes per drive would top out at 500 per second. Today's
I/O subsystems are considerably bigger and faster than those limits.
Thus this delta removes the hard upper limit and lets tunefs(8) and
newfs(8) set the upper bound based on the size of the filesystem and
its cylinder groups.

Sponsored by: The FreeBSD Foundation
This commit is contained in:
Kirk McKusick 2022-10-21 11:00:00 -07:00
parent 0929a153fc
commit 243a0eda9a
2 changed files with 0 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
sbin/tunefs/tunefs.c
View File

@ -976,7 +976,6 @@ journal_alloc(int64_t size)
*/
if (size == 0) {
size = (sblock.fs_size * sblock.fs_bsize) / 1024;
size = MIN(SUJ_MAX, size);
if (size / sblock.fs_fsize > sblock.fs_fpg)
size = sblock.fs_fpg * sblock.fs_fsize;
size = MAX(SUJ_MIN, size);

1
sys/ufs/ffs/fs.h
View File

@ -806,7 +806,6 @@ lbn_offset(struct fs *fs, int level)
#define JREC_SIZE 32 /* Record and segment header size. */
#define SUJ_MIN (4 * 1024 * 1024) /* Minimum journal size */
#define SUJ_MAX (32 * 1024 * 1024) /* Maximum journal size */
#define SUJ_FILE ".sujournal" /* Journal file name */
/*