From: Paolo Bonzini <pbonzini@redhat.com>
To: Pavel Dovgalyuk <dovgaluk@ispras.ru>,
'Pavel Dovgalyuk' <Pavel.Dovgaluk@ispras.ru>,
qemu-devel@nongnu.org
Cc: kwolf@redhat.com, peter.maydell@linaro.org,
boost.lists@gmail.com, quintela@redhat.com, jasowang@redhat.com,
mst@redhat.com, zuban32s@gmail.com,
maria.klimushenkova@ispras.ru, kraxel@redhat.com,
alex.bennee@linaro.org
Subject: Re: [Qemu-devel] [RFC PATCH v3 29/30] replay: improve replay performance
Date: Thu, 11 Jan 2018 14:22:25 +0100 [thread overview]
Message-ID: <17a6b61c-e151-a5e1-978a-b54da71dbe55@redhat.com> (raw)
In-Reply-To: <000901d38add$ddb4b750$991e25f0$@ru>
On 11/01/2018 14:12, Pavel Dovgalyuk wrote:
>> From: Paolo Bonzini [mailto:paolo.bonzini@gmail.com] On Behalf Of Paolo Bonzini
>> On 11/01/2018 09:27, Pavel Dovgalyuk wrote:
>>> + } else {
>>> + qemu_notify_event();
>>> + }
>>
>> Before this patch, what would do the qemu_notify_event?
>
> We tried using qemu_notify_event to wake up the iothread and speedup the replay,
> when there is no work for vcpu thread to do.
But why doesn't the iothread wake up on its own?
Paolo
next prev parent reply other threads:[~2018-01-11 13:22 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-11 8:24 [Qemu-devel] [RFC PATCH v3 00/30] replay additions Pavel Dovgalyuk
2018-01-11 8:24 ` [Qemu-devel] [RFC PATCH v3 01/30] hpet: recover timer offset correctly Pavel Dovgalyuk
2018-01-11 8:25 ` [Qemu-devel] [RFC PATCH v3 02/30] cpu: flush TB cache when loading VMState Pavel Dovgalyuk
2018-01-11 8:25 ` [Qemu-devel] [RFC PATCH v3 03/30] This patch adds a condition before overwriting exception_index fields Pavel Dovgalyuk
2018-01-11 12:29 ` Paolo Bonzini
2018-01-12 6:12 ` Pavel Dovgalyuk
2018-01-11 8:25 ` [Qemu-devel] [RFC PATCH v3 04/30] block: implement bdrv_snapshot_goto for blkreplay Pavel Dovgalyuk
2018-01-11 8:25 ` [Qemu-devel] [RFC PATCH v3 05/30] blkreplay: create temporary overlay for underlaying devices Pavel Dovgalyuk
2018-01-11 8:25 ` [Qemu-devel] [RFC PATCH v3 06/30] replay: disable default snapshot for record/replay Pavel Dovgalyuk
2018-01-11 8:25 ` [Qemu-devel] [RFC PATCH v3 07/30] replay: fix processing async events Pavel Dovgalyuk
2018-01-11 8:25 ` [Qemu-devel] [RFC PATCH v3 08/30] replay: fixed replay_enable_events Pavel Dovgalyuk
2018-01-11 8:25 ` [Qemu-devel] [RFC PATCH v3 09/30] replay: fix save/load vm for non-empty queue Pavel Dovgalyuk
2018-01-11 8:25 ` [Qemu-devel] [RFC PATCH v3 10/30] replay: added replay log format description Pavel Dovgalyuk
2018-01-11 8:25 ` [Qemu-devel] [RFC PATCH v3 11/30] replay: make safe vmstop at record/replay Pavel Dovgalyuk
2018-01-11 8:26 ` [Qemu-devel] [RFC PATCH v3 12/30] replay: save prior value of the host clock Pavel Dovgalyuk
2018-01-11 8:26 ` [Qemu-devel] [RFC PATCH v3 13/30] icount: fixed saving/restoring of icount warp timers Pavel Dovgalyuk
2018-01-11 8:26 ` [Qemu-devel] [RFC PATCH v3 14/30] target/arm/arm-powertctl: drop BQL assertions Pavel Dovgalyuk
2018-01-11 8:26 ` [Qemu-devel] [RFC PATCH v3 15/30] cpus: push BQL lock to qemu_*_wait_io_event Pavel Dovgalyuk
2018-01-11 12:50 ` Paolo Bonzini
2018-01-11 8:26 ` [Qemu-devel] [RFC PATCH v3 16/30] cpus: only take BQL for sleeping threads Pavel Dovgalyuk
2018-01-11 8:26 ` [Qemu-devel] [RFC PATCH v3 17/30] replay/replay.c: bump REPLAY_VERSION again Pavel Dovgalyuk
2018-01-11 8:26 ` [Qemu-devel] [RFC PATCH v3 18/30] replay/replay-internal.c: track holding of replay_lock Pavel Dovgalyuk
2018-01-11 8:26 ` [Qemu-devel] [RFC PATCH v3 19/30] replay: make locking visible outside replay code Pavel Dovgalyuk
2018-01-11 8:26 ` [Qemu-devel] [RFC PATCH v3 20/30] replay: push replay_mutex_lock up the call tree Pavel Dovgalyuk
2018-01-11 8:26 ` [Qemu-devel] [RFC PATCH v3 21/30] replay: don't destroy mutex at exit Pavel Dovgalyuk
2018-01-11 8:27 ` [Qemu-devel] [RFC PATCH v3 22/30] replay: check return values of fwrite Pavel Dovgalyuk
2018-01-11 8:27 ` [Qemu-devel] [RFC PATCH v3 23/30] replay: avoid recursive call of checkpoints Pavel Dovgalyuk
2018-01-11 8:27 ` [Qemu-devel] [RFC PATCH v3 24/30] scripts/qemu-gdb: add simple tcg lock status helper Pavel Dovgalyuk
2018-01-11 8:27 ` [Qemu-devel] [RFC PATCH v3 25/30] util/qemu-thread-*: add qemu_lock, locked and unlock trace events Pavel Dovgalyuk
2018-01-11 8:27 ` [Qemu-devel] [RFC PATCH v3 26/30] scripts/analyse-locks-simpletrace.py: script to analyse lock times Pavel Dovgalyuk
2018-01-11 8:27 ` [Qemu-devel] [RFC PATCH v3 27/30] scripts/replay-dump.py: replay log dumper Pavel Dovgalyuk
2018-01-11 8:27 ` [Qemu-devel] [RFC PATCH v3 28/30] scripts/qemu-gdb/timers.py: new helper to dump timer state Pavel Dovgalyuk
2018-01-11 8:27 ` [Qemu-devel] [RFC PATCH v3 29/30] replay: improve replay performance Pavel Dovgalyuk
2018-01-11 12:55 ` Paolo Bonzini
2018-01-11 13:12 ` Pavel Dovgalyuk
2018-01-11 13:22 ` Paolo Bonzini [this message]
2018-01-12 6:13 ` Pavel Dovgalyuk
2018-01-12 12:10 ` Paolo Bonzini
2018-01-12 12:41 ` Pavel Dovgalyuk
2018-01-11 8:27 ` [Qemu-devel] [RFC PATCH v3 30/30] replay: don't process async events when warping the clock Pavel Dovgalyuk
2018-01-11 12:37 ` Paolo Bonzini
2018-01-12 7:20 ` Pavel Dovgalyuk
2018-01-11 8:54 ` [Qemu-devel] [RFC PATCH v3 00/30] replay additions no-reply
2018-01-11 8:55 ` no-reply
2018-01-11 12:56 ` Paolo Bonzini
2018-01-12 9:32 ` Paolo Bonzini
2018-01-12 12:07 ` Pavel Dovgalyuk
2018-01-12 12:11 ` Paolo Bonzini
2018-01-19 6:35 ` Pavel Dovgalyuk
2018-01-19 7:41 ` Paolo Bonzini
2018-01-19 7:45 ` Pavel Dovgalyuk
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=17a6b61c-e151-a5e1-978a-b54da71dbe55@redhat.com \
--to=pbonzini@redhat.com \
--cc=Pavel.Dovgaluk@ispras.ru \
--cc=alex.bennee@linaro.org \
--cc=boost.lists@gmail.com \
--cc=dovgaluk@ispras.ru \
--cc=jasowang@redhat.com \
--cc=kraxel@redhat.com \
--cc=kwolf@redhat.com \
--cc=maria.klimushenkova@ispras.ru \
--cc=mst@redhat.com \
--cc=peter.maydell@linaro.org \
--cc=qemu-devel@nongnu.org \
--cc=quintela@redhat.com \
--cc=zuban32s@gmail.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).