Re: [PATCHv2 00/11] util/resctrl cleanups and refactors

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Ping. 

I am also prepared the MBM(memory bandwidth monitor) patches based on these cleanups, I
wonder if it is proper to submit it along with these patches, if yes, I'd like to send out the whole
patches in another thread.

Thanks
Huaqiang

> -----Original Message-----
> From: Wang, Huaqiang
> Sent: Monday, July 1, 2019 5:01 PM
> To: libvir-list@xxxxxxxxxx; Michal Privoznik <mprivozn@xxxxxxxxxx>
> Cc: Su, Tao <tao.su@xxxxxxxxx>
> Subject: RE: [PATCHv2 00/11] util/resctrl cleanups and refactors
> 
> Hi Michal,
> 
> I think I make a mistake by not adding you into the mail receiver list since
> you are the reviewer of V1, and these patches have been submitted  for
> more than two weeks.
> The v2 patches locates in this link: https://www.redhat.com/archives/libvir-
> list/2019-June/thread.html#00288
> 
> I wonder if you have time to have a review. Actually I aimed to submit the
> MBM patches, Which is ready based on these patches, and this series of
> patches for cleanups and fixes to existing codes to make the upcoming
> MBM patches to be more reasonable. If you think it is necessary to review
> the MBM patches as a whole , I can send them out shortly.
> 
> Br
> Huaqiang
> 
> > -----Original Message-----
> > From: Wang, Huaqiang
> > Sent: Tuesday, June 11, 2019 11:31 AM
> > To: libvir-list@xxxxxxxxxx
> > Cc: Wang, Huaqiang <huaqiang.wang@xxxxxxxxx>; Su, Tao
> > <tao.su@xxxxxxxxx>
> > Subject: [PATCHv2 00/11] util/resctrl cleanups and refactors
> >
> > Patches submitted for purpose of refactoring existing 'resctrl'
> > related source code, including some code cleanups as well as some
> > fixes. This is also a preparation for memory bandwidth monitor codes.
> >
> > Plan to support Resctrl Control Monitors, which is a feature
> > introduced by kernel 'resctrl' sub-model. Submit some cleanup and
> > refactoring patches for upcoming memory bandwidth resource
> monitoring (MBM) monitors.
> >
> > Related MBM RFC is
> > https://www.redhat.com/archives/libvir-list/2019-April/msg01409.html.
> > This RFC is not actively discussed since libvirt already implemented
> > similar resctrl cache monitoring (CMT), and lots details have been
> > discussed and implemented during the work of CMT.
> >
> > The cleanups and refactoring includes:
> > v2 changes:
> > 1. Addressed comments of v1.
> > 2. Introduce a new algorithm for verifying new monitor vcpus and
> > existing monitors and allocations.
> > 3. Fixes for creating default-allocation-monitor in 'resctrl' file
> > system.(patch 0001).
> >
> > v1 changes:
> > 1. Removing some reluctant lines and white spaces that is existing in
> > current code and not meet the libvirt coding style.
> > 2. Replace 'virResctrlAllocIsEmpty' with @n==0 for indicating no
> > resctrl allocation in configuration file.
> > 3. Private API changes, removed 'virResctrlMonitorGetCacheOccupancy'
> > and exported a new API named 'virResctrlMonitorGetStats' with similar
> > functionality, but with capability to be used for retrieving MBM
> > statistical information.
> > 4. Refactoring 'virResctrlMonitorFreeStats' for more reusing in code.
> > 5. Extend data structure 'virResctrlMonitorStats' with the capability
> > to carry multiple statistical information from monitor.
> >
> > Wang Huaqiang (11):
> >   util,conf: Handle default monitor group of an allocation properly
> >   conf: code cleanup, remove empty line and one space
> >   conf: code cleanup for return error code directly
> >   conf: some code cleanup
> >   conf: refactor 'virDomainResctrlVcpuMatch' and some code cleanup
> >   conf: Append 'resctrl' object according to number of monitor group
> >     directly
> >   util: Refactor and rename 'virResctrlMonitorFreeStats'
> >   util: Refactor 'virResctrlMonitorStats'
> >   util: Extend virresctl API to retrieve multiple monitor statistics
> >   util: Remove unused virResctrlMonitorGetCacheOccupancy
> >   conf: Refactor and rename the function to validate a new resctrl
> >     monitor
> >
> >  src/conf/domain_conf.c   | 145 ++++++++++++++++++++++++--------------
> ---
> > ------
> >  src/libvirt_private.syms |   5 +-
> >  src/qemu/qemu_driver.c   |  41 ++++++++++----
> >  src/qemu/qemu_process.c  |   3 +-
> >  src/util/virresctrl.c    |  75 ++++++++++--------------
> >  src/util/virresctrl.h    |  23 +++++---
> >  6 files changed, 156 insertions(+), 136 deletions(-)
> >
> > --
> > 2.7.4


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