From: Edmund Nadolski <enadolski@suse.com>
To: enadolski@suse.com, linux-btrfs@vger.kernel.org
Subject: [PATCH 00/13] use rbtrees for preliminary backrefs
Date: Tue, 20 Jun 2017 10:06:40 -0600 [thread overview]
Message-ID: <20170620160653.19907-1-enadolski@suse.com> (raw)
This patch series attempts to improve the performance of backref
searches by changing the prelim_refs implementation to use
rbtrees instead of lists. This also aims to reduce the soft
lockup occurences that can result when a backref search consumes
too much cpu time.
Test runs of btrfs/130 show an improvement in the overall
run time of the test (shown below in seconds) as a function of
the number of extents:
nr_extents: 256 512 640 1024 2048
------------+-------+-----+-------+-------+------
unpatched: 20 186 375 2204 40419
patched: 12 93 203 1060 22007
(Note, the current default value for nr_extents in btrfs/130 is
4096, which takes a very long time to complete.)
Edmund Nadolski (6):
btrfs: btrfs_check_shared should manage its own transaction
btrfs: remove ref_tree implementation from backref.c
btrfs: convert prelimary reference tracking to use rbtrees
btrfs: add cond_resched() calls when resolving backrefs
btrfs: allow backref search checks for shared extents
btrfs: clean up extraneous computations in add_delayed_refs
Jeff Mahoney (7):
btrfs: struct-funcs, constify readers
btrfs: constify tracepoint arguments
btrfs: backref, constify some arguments
btrfs: backref, add unode_aux_to_inode_list helper
btrfs: backref, cleanup __ namespace abuse
btrfs: add a node counter to each of the rbtrees
btrfs: backref, add tracepoints for prelim_ref insertion and merging
fs/btrfs/async-thread.c | 6 +-
fs/btrfs/async-thread.h | 6 +-
fs/btrfs/backref.c | 1042 ++++++++++++++++++------------------------
fs/btrfs/backref.h | 16 +-
fs/btrfs/btrfs_inode.h | 4 +-
fs/btrfs/ctree.h | 128 +++---
fs/btrfs/extent_io.c | 46 +-
fs/btrfs/extent_io.h | 19 +-
fs/btrfs/struct-funcs.c | 9 +-
fs/btrfs/super.c | 1 +
include/trace/events/btrfs.h | 300 +++++++-----
11 files changed, 750 insertions(+), 827 deletions(-)
--
2.10.2
next reply other threads:[~2017-06-20 16:05 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-20 16:06 Edmund Nadolski [this message]
2017-06-20 16:06 ` [PATCH 01/13] btrfs: struct-funcs, constify readers Edmund Nadolski
2017-06-20 16:06 ` [PATCH 02/13] btrfs: constify tracepoint arguments Edmund Nadolski
2017-06-20 16:06 ` [PATCH 03/13] btrfs: backref, constify some arguments Edmund Nadolski
2017-06-20 16:06 ` [PATCH 04/13] btrfs: backref, add unode_aux_to_inode_list helper Edmund Nadolski
2017-06-20 16:06 ` [PATCH 05/13] btrfs: backref, cleanup __ namespace abuse Edmund Nadolski
2017-06-20 16:06 ` [PATCH 06/13] btrfs: btrfs_check_shared should manage its own transaction Edmund Nadolski
2017-06-27 15:40 ` David Sterba
2017-06-20 16:06 ` [PATCH 07/13] btrfs: remove ref_tree implementation from backref.c Edmund Nadolski
2017-06-27 15:48 ` David Sterba
2017-06-20 16:06 ` [PATCH 08/13] btrfs: convert prelimary reference tracking to use rbtrees Edmund Nadolski
2017-06-26 17:07 ` Jeff Mahoney
2017-06-27 20:09 ` Jeff Mahoney
2017-06-27 21:11 ` [PATCH] btrfs: backref, properly iterate the missing keys Jeff Mahoney
2017-06-27 16:49 ` [PATCH 08/13] btrfs: convert prelimary reference tracking to use rbtrees David Sterba
2017-06-27 21:10 ` Jeff Mahoney
2017-07-04 17:02 ` David Sterba
2017-06-20 16:06 ` [PATCH 09/13] btrfs: add a node counter to each of the rbtrees Edmund Nadolski
2017-06-20 16:06 ` [PATCH 10/13] btrfs: backref, add tracepoints for prelim_ref insertion and merging Edmund Nadolski
2017-06-20 16:06 ` [PATCH 11/13] btrfs: add cond_resched() calls when resolving backrefs Edmund Nadolski
2017-06-20 16:06 ` [PATCH 12/13] btrfs: allow backref search checks for shared extents Edmund Nadolski
2017-06-20 16:06 ` [PATCH 13/13] btrfs: clean up extraneous computations in add_delayed_refs Edmund Nadolski
2017-06-27 17:06 ` [PATCH 00/13] use rbtrees for preliminary backrefs David Sterba
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170620160653.19907-1-enadolski@suse.com \
--to=enadolski@suse.com \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.