Tidy up simonb-wapbl issues section.

This commit is contained in:
simonb 2008-07-28 13:20:45 +00:00
parent 97f4be43e9
commit 240772bb7e

View File

@ -1,4 +1,4 @@
# $NetBSD: BRANCHES,v 1.266 2008/07/28 12:11:17 simonb Exp $
# $NetBSD: BRANCHES,v 1.267 2008/07/28 13:20:45 simonb Exp $
#
# This file contains a list of branches that exist in the NetBSD CVS
# tree and their current state.
@ -610,12 +610,6 @@ Scope: src/distrib/sets/lists/comp src/distrib/utils/sysinst
src/sbin/fsck_ffs src/sbin/fsdb src/sbin/mount_ffs
src/sbin/tunefs src/usr.sbin/dumpfs src/sys
Notes: Still has a number of issues:
- Can't log the root filesystem (or any FS if /dev isn't an
ffs) or update existing mounts from non-logged to logged.
See kern/38057 - a fix for the PR has been committed but
at this stage it doesn't play well with WAPBL.
- Log must currently live at end of partition.
- No log locators.
- Some heavy workload performance issues on SMP machines.
Work around this issue by turning on WAPBL_DEBUG_SERIALIZE
in rev 1.1.2.11 of vfs_wapbl.c.
@ -624,6 +618,7 @@ Notes: Still has a number of issues:
dd if=/dev/zero of=foox bs=1 count=1 seek=11261748520550
takes 0:00.00 to remove on my test box without logging and
0:22.25 to remove with logging. No disk IO during this...
- sysinst should use in-fs logs now, not end-of-partition logs.
Branch: thorpej-atomic
Description: Implementation of an atomic memory operations API modeled