All of lore.kernel.org
 help / color / mirror / Atom feed
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: qemu-block@nongnu.org
Cc: qemu-devel@nongnu.org, crosa@redhat.com, ehabkost@redhat.com,
	mreitz@redhat.com, kwolf@redhat.com, vsementsov@virtuozzo.com,
	jsnow@redhat.com
Subject: [PATCH v3 0/6] qcow2: compressed write cache
Date: Fri,  5 Mar 2021 20:35:01 +0300	[thread overview]
Message-ID: <20210305173507.393137-1-vsementsov@virtuozzo.com> (raw)

The series inherits "[PATCH 0/7] qcow2: compressed write cache"
(changed a lot, the cache is rewritten), and
"[PATCH v2(RFC) 0/3] qcow2: fix parallel rewrite and "
(the fix solution is taken from v1 instead, as the are problems with v2,
 described in cover letter)

Core changes in v3:

 - cache is rewritten and now is separated even from block-layer
 - I'm tired of trying to catch degradation when use both pagecache and
   my new cache.. So, I decided that using both caches is just a bad
   idea and in v3 cache is enabled only when qcow2 file child opened in
   O_DIRECT

Vladimir Sementsov-Ogievskiy (6):
  block-jobs: flush target at the end of .run()
  iotests: add qcow2-discard-during-rewrite
  block/qcow2: introduce inflight writes counters: fix discard
  util: implement seqcache
  block-coroutine-wrapper: allow non bdrv_ prefix
  block/qcow2: use seqcache for compressed writes

 block/coroutines.h                            |   3 +
 block/qcow2.h                                 |  13 +
 include/block/blockjob_int.h                  |  18 +
 include/qemu/seqcache.h                       |  42 ++
 block/backup.c                                |   8 +-
 block/commit.c                                |   2 +
 block/mirror.c                                |   2 +
 block/qcow2-refcount.c                        | 159 +++++++-
 block/qcow2.c                                 | 178 ++++++++-
 block/stream.c                                |   2 +
 blockjob.c                                    |  16 +
 util/seqcache.c                               | 361 ++++++++++++++++++
 MAINTAINERS                                   |   6 +
 scripts/block-coroutine-wrapper.py            |   7 +-
 .../tests/qcow2-discard-during-rewrite        |  72 ++++
 .../tests/qcow2-discard-during-rewrite.out    |  21 +
 util/meson.build                              |   1 +
 17 files changed, 893 insertions(+), 18 deletions(-)
 create mode 100644 include/qemu/seqcache.h
 create mode 100644 util/seqcache.c
 create mode 100755 tests/qemu-iotests/tests/qcow2-discard-during-rewrite
 create mode 100644 tests/qemu-iotests/tests/qcow2-discard-during-rewrite.out

-- 
2.29.2



             reply	other threads:[~2021-03-05 18:14 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-05 17:35 Vladimir Sementsov-Ogievskiy [this message]
2021-03-05 17:35 ` [PATCH v3 1/6] block-jobs: flush target at the end of .run() Vladimir Sementsov-Ogievskiy
2021-03-11 16:57   ` Max Reitz
2021-03-05 17:35 ` [PATCH v3 2/6] iotests: add qcow2-discard-during-rewrite Vladimir Sementsov-Ogievskiy
2021-03-05 17:35 ` [PATCH v3 3/6] block/qcow2: introduce inflight writes counters: fix discard Vladimir Sementsov-Ogievskiy
2021-03-11 19:58   ` Max Reitz
2021-03-12  9:09     ` Vladimir Sementsov-Ogievskiy
2021-03-12 11:17       ` Max Reitz
2021-03-12 12:32         ` Vladimir Sementsov-Ogievskiy
2021-03-12 12:42           ` Vladimir Sementsov-Ogievskiy
2021-03-12 15:01             ` Max Reitz
2021-03-12 12:46           ` Vladimir Sementsov-Ogievskiy
2021-03-12 15:10             ` Max Reitz
2021-03-12 15:24               ` Vladimir Sementsov-Ogievskiy
2021-03-12 15:52                 ` Max Reitz
2021-03-12 16:03                   ` Vladimir Sementsov-Ogievskiy
2021-03-12 14:58           ` Max Reitz
2021-03-12 15:39             ` Vladimir Sementsov-Ogievskiy
2021-03-05 17:35 ` [PATCH v3 4/6] util: implement seqcache Vladimir Sementsov-Ogievskiy
2021-03-12 13:41   ` Max Reitz
2021-03-12 14:37     ` Vladimir Sementsov-Ogievskiy
2021-03-12 15:13       ` Max Reitz
2021-06-04 14:31   ` Vladimir Sementsov-Ogievskiy
2021-03-05 17:35 ` [PATCH v3 5/6] block-coroutine-wrapper: allow non bdrv_ prefix Vladimir Sementsov-Ogievskiy
2021-03-12 16:53   ` Max Reitz
2021-03-05 17:35 ` [PATCH v3 6/6] block/qcow2: use seqcache for compressed writes Vladimir Sementsov-Ogievskiy
2021-03-12 18:15   ` Max Reitz
2021-03-12 18:43     ` Vladimir Sementsov-Ogievskiy
2021-03-15  9:58       ` Max Reitz
2021-03-15 14:40         ` Vladimir Sementsov-Ogievskiy
2021-03-16 12:25           ` Max Reitz
2021-03-16 17:48             ` Vladimir Sementsov-Ogievskiy
2021-03-17  8:09               ` Max Reitz
2021-03-12 18:45     ` Vladimir Sementsov-Ogievskiy
2021-03-29 20:18     ` Vladimir Sementsov-Ogievskiy

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=20210305173507.393137-1-vsementsov@virtuozzo.com \
    --to=vsementsov@virtuozzo.com \
    --cc=crosa@redhat.com \
    --cc=ehabkost@redhat.com \
    --cc=jsnow@redhat.com \
    --cc=kwolf@redhat.com \
    --cc=mreitz@redhat.com \
    --cc=qemu-block@nongnu.org \
    --cc=qemu-devel@nongnu.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.