From: Hyman Huang(黄勇)
introduce "DirtyRateMeasureMode" to specify what method should be
used to calculate dirty rate, introduce "DirtyRateVcpu" to store
dirty rate fore each vcpu.
use union to store stat data of specific mode
Signed-off-by: Hyman Huang(黄勇)
Message-Id:
<661c98c40f40e163aa58334
From: Hyman Huang(黄勇)
since main thread may "query dirty rate" at any time, it's better
to move init step into main thead so that synchronization overhead
between "main" and "get_dirtyrate" can be reduced.
Signed-off-by: Hyman Huang(黄勇)
Message-Id:
<109f8077518ed2f13068e3bfb10e625e964780f1.162
From: Hyman Huang(黄勇)
dirty_pages is used to calculate dirtyrate via dirty ring, when
enabled, kvm-reaper will increase the dirty pages after gfns
being dirtied.
kvm_dirty_ring_enabled shows if kvm-reaper is working. dirtyrate
thread could use it to check if measurement can base on dirty
ring fe
From: Hyman Huang(黄勇)
v11
- rebase on master
- call memory_global_dirty_log_sync before stopping dirty log
when we calculate dirtyrate. this can make dirtyrate result
more accurate, since kvm-reaper may be sleeping when there are
dirty pages but not very much, this may lead to miss some pa
From: Hyman Huang(黄勇)
registering get_dirtyrate thread in advance so that both
page-sampling and dirty-ring mode can be covered.
Signed-off-by: Hyman Huang(黄勇)
Message-Id:
Reviewed-by: Peter Xu
---
migration/dirtyrate.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git
From: Hyman Huang(黄勇)
use dirty ring feature to implement dirtyrate calculation.
introduce mode option in qmp calc_dirty_rate to specify what
method should be used when calculating dirtyrate, either
page-sampling or dirty-ring should be passed.
introduce "dirty_ring:-r" option in hmp calc_dirty
From: Hyman Huang(黄勇)
dirty_pages is used to calculate dirtyrate via dirty ring, when
enabled, kvm-reaper will increase the dirty pages after gfns
being dirtied.
kvm_dirty_ring_enabled shows if kvm-reaper is working. dirtyrate
thread could use it to check if measurement can base on dirty
ring fe
From: Hyman Huang(黄勇)
v12
- adjust the order of calculating dirty rate
let memory_global_dirty_log_sync before calculating as
v11 version description.
v11
- rebase on master
- call memory_global_dirty_log_sync before stopping dirty log
when we calculate dirtyrate. this can make dirtyrate
From: Hyman Huang(黄勇)
introduce "DirtyRateMeasureMode" to specify what method should be
used to calculate dirty rate, introduce "DirtyRateVcpu" to store
dirty rate fore each vcpu.
use union to store stat data of specific mode
Signed-off-by: Hyman Huang(黄勇)
Message-Id:
<661c98c40f40e163aa58334
From: Hyman Huang(黄勇)
since dirty ring has been introduced, there are two methods
to track dirty pages of vm. it seems that "logging" has
a hint on the method, so rename the global_dirty_log to
global_dirty_tracking would make description more accurate.
dirty rate measurement may start or stop d
From: Hyman Huang(黄勇)
registering get_dirtyrate thread in advance so that both
page-sampling and dirty-ring mode can be covered.
Signed-off-by: Hyman Huang(黄勇)
Message-Id:
Reviewed-by: Peter Xu
---
migration/dirtyrate.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git
From: Hyman Huang(黄勇)
use dirty ring feature to implement dirtyrate calculation.
introduce mode option in qmp calc_dirty_rate to specify what
method should be used when calculating dirtyrate, either
page-sampling or dirty-ring should be passed.
introduce "dirty_ring:-r" option in hmp calc_dirty
From: Hyman Huang(黄勇)
since main thread may "query dirty rate" at any time, it's better
to move init step into main thead so that synchronization overhead
between "main" and "get_dirtyrate" can be reduced.
Signed-off-by: Hyman Huang(黄勇)
Message-Id:
<109f8077518ed2f13068e3bfb10e625e964780f1.162
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