From: Andrii Anisov <andrii.anisov@gmail.com>
To: xen-devel@lists.xenproject.org, Dario Faggioli <dfaggioli@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>,
Andrii Anisov <andrii_anisov@epam.com>, Wei Liu <wl@xen.org>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
George Dunlap <george.dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>,
Julien Grall <julien.grall@arm.com>,
Meng Xu <mengxu@cis.upenn.edu>, Jan Beulich <jbeulich@suse.com>,
Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>
Subject: [Xen-devel] [RFC 0/9] Changes to time accounting
Date: Wed, 11 Sep 2019 13:32:13 +0300 [thread overview]
Message-ID: <1568197942-15374-1-git-send-email-andrii.anisov@gmail.com> (raw)
From: Andrii Anisov <andrii_anisov@epam.com>
That is the second attempt of the changes for the time accounting in XEN.
The initial topic is here [1].
In this series it is introduced a time accounting infrastructure separated
from runstates, and made an attempt to use new infra solely for taking
scheduling decissions.
This series still employs ideas of the initial series about what hypervisor,
idle and guest time are.
Yet, this series lacks of connection between new time accounting infra and
runstate. This is TODO, currently.
The main goal of this work is to improve time accounting precission as well
as avoiding charging guests for the other entities (guests or hypervisor itself)
work.
Changes from:
Initial RFC series [1]:
- Time accounting made independent from runstates infrastructure.
- Dropped odd patches to ARM64 code.
[1] https://lists.xenproject.org/archives/html/xen-devel/2019-07/msg01839.html
Andrii Anisov (9):
schedule: Introduce per-pcpu time accounting
sysctl: extend XEN_SYSCTL_getcpuinfo interface
xentop: show CPU load information
arm64: utilize time accounting
tacc: Introduce a lockless interface for guest time
sched:rtds: get guest time from time accounting code
tacc: Introduce a locked interface for guest time
sched:credit: get guest time from time accounting code
sched:credit2: get guest time from time accounting code
tools/xenstat/libxenstat/src/xenstat.c | 50 +++++++++
tools/xenstat/libxenstat/src/xenstat.h | 15 +++
tools/xenstat/libxenstat/src/xenstat_priv.h | 5 +
tools/xenstat/xentop/xentop.c | 36 ++++++
xen/arch/arm/arm64/entry.S | 39 ++++++-
xen/arch/arm/domain.c | 2 +
xen/common/Kconfig | 5 +
xen/common/sched_credit.c | 12 +-
xen/common/sched_credit2.c | 17 +--
xen/common/sched_rt.c | 4 +-
xen/common/schedule.c | 168 +++++++++++++++++++++++++++-
xen/common/sysctl.c | 4 +
xen/include/public/sysctl.h | 4 +
xen/include/xen/sched.h | 50 +++++++++
14 files changed, 386 insertions(+), 25 deletions(-)
--
2.7.4
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next reply other threads:[~2019-09-11 10:32 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-11 10:32 Andrii Anisov [this message]
2019-09-11 10:32 ` [Xen-devel] [RFC 1/9] schedule: Introduce per-pcpu time accounting Andrii Anisov
2019-09-11 18:01 ` Volodymyr Babchuk
2019-09-12 10:26 ` Andrii Anisov
2019-10-28 14:28 ` Julien Grall
2019-11-06 11:24 ` Andrii Anisov
2020-05-26 2:27 ` Volodymyr Babchuk
2020-05-29 8:48 ` Dario Faggioli
2020-06-02 1:12 ` Volodymyr Babchuk
2020-06-03 15:22 ` Dario Faggioli
2019-09-11 10:32 ` [Xen-devel] [RFC 2/9] sysctl: extend XEN_SYSCTL_getcpuinfo interface Andrii Anisov
2019-10-28 14:52 ` Julien Grall
2019-11-06 11:25 ` Andrii Anisov
2019-09-11 10:32 ` [Xen-devel] [RFC 3/9] xentop: show CPU load information Andrii Anisov
2019-09-11 10:32 ` [Xen-devel] [RFC 4/9] arm64: utilize time accounting Andrii Anisov
2019-09-11 17:48 ` Volodymyr Babchuk
2019-09-12 12:09 ` Andrii Anisov
2019-09-12 12:17 ` Julien Grall
2019-09-12 12:29 ` Andrii Anisov
2019-10-28 14:47 ` Julien Grall
2019-11-06 11:31 ` Andrii Anisov
2019-09-11 10:32 ` [Xen-devel] [RFC 5/9] tacc: Introduce a lockless interface for guest time Andrii Anisov
2019-09-11 10:32 ` [Xen-devel] [RFC 6/9] sched:rtds: get guest time from time accounting code Andrii Anisov
2019-09-11 10:32 ` [Xen-devel] [RFC 7/9] tacc: Introduce a locked interface for guest time Andrii Anisov
2019-09-11 10:32 ` [Xen-devel] [RFC 8/9] sched:credit: get guest time from time accounting code Andrii Anisov
2019-09-11 10:32 ` [Xen-devel] [RFC 9/9] sched:credit2: " Andrii Anisov
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