On 2019年05月28日 16:32, Huaqiang,Wang wrote:
On 2019年05月27日 23:26, Michal Privoznik wrote:
On 5/23/19 11:34 AM, Wang Huaqiang wrote:
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:
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 (9):
conf: code cleanup, remove empty line and one space
conf: code cleanup for return error code directly
conf: check if vcpus matches with any 'existing' allocaiton
conf: Replace 'virResctrlAllocIsEmpty' with @n==0 for indicating no
resctrl allocation in configuration file
conf: refactor 'virDomainResctrlVcpuMatch'
util: Refactor 'virResctrlMonitorFreeStats'
util: Refactor 'virResctrlMonitorStats'
util: Extend virresctl API to retrieve multiple monitor statistics
util: Remove unused virResctrlMonitorGetCacheOccupancy
src/conf/domain_conf.c | 89
+++++++++++++++++++++++-------------------------
src/libvirt_private.syms | 2 +-
src/qemu/qemu_driver.c | 36 +++++++++++++++-----
src/util/virresctrl.c | 68 +++++++++++++++---------------------
src/util/virresctrl.h | 19 ++++++++---
5 files changed, 113 insertions(+), 101 deletions(-)
Patches look good, but there are some small issues that need fixing
before I'd be able to push these. Looking forward to v2.
Michal
Hi Michal,
Thanks for your kindly comments. I'll submit v2 patches shortly once
we achieved the consistence on
the code changes.
Br
Huaqiang
Hi Michal,
I know we have achieved agreements on most of existing problems/comments
for this series, but I could not
submit with v2 patches shortly, I hope I can make more tests on the
functionality of all libvirt resctrl including
the MBM patches before I submit them. Just for your information.
BR
Huaqiang
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