diff options
| author | Hyman Huang(黄勇) <huangy81@chinatelecom.cn> | 2022-06-26 01:38:36 +0800 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2022-07-20 12:15:08 +0100 |
| commit | f3b2e38cfb2ecabe53b96752ebdf80b541a520ab (patch) | |
| tree | 9860a1954f097db1978f0a8a5aba4b3fc2fce926 /hmp-commands.hx | |
| parent | baa609832e1849915b62be2abfbdc1d0e5909a7b (diff) | |
softmmu/dirtylimit: Implement dirty page rate limit
Implement dirtyrate calculation periodically basing on
dirty-ring and throttle virtual CPU until it reachs the quota
dirty page rate given by user.
Introduce qmp commands "set-vcpu-dirty-limit",
"cancel-vcpu-dirty-limit", "query-vcpu-dirty-limit"
to enable, disable, query dirty page limit for virtual CPU.
Meanwhile, introduce corresponding hmp commands
"set_vcpu_dirty_limit", "cancel_vcpu_dirty_limit",
"info vcpu_dirty_limit" so the feature can be more usable.
"query-vcpu-dirty-limit" success depends on enabling dirty
page rate limit, so just add it to the list of skipped
command to ensure qmp-cmd-test run successfully.
Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <4143f26706d413dd29db0b672fe58b3d3fbe34bc.1656177590.git.huangy81@chinatelecom.cn>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'hmp-commands.hx')
| -rw-r--r-- | hmp-commands.hx | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/hmp-commands.hx b/hmp-commands.hx index c9d465735a..182e639d14 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -1768,3 +1768,35 @@ ERST "\n\t\t\t -b to specify dirty bitmap as method of calculation)", .cmd = hmp_calc_dirty_rate, }, + +SRST +``set_vcpu_dirty_limit`` + Set dirty page rate limit on virtual CPU, the information about all the + virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit`` + command. +ERST + + { + .name = "set_vcpu_dirty_limit", + .args_type = "dirty_rate:l,cpu_index:l?", + .params = "dirty_rate [cpu_index]", + .help = "set dirty page rate limit, use cpu_index to set limit" + "\n\t\t\t\t\t on a specified virtual cpu", + .cmd = hmp_set_vcpu_dirty_limit, + }, + +SRST +``cancel_vcpu_dirty_limit`` + Cancel dirty page rate limit on virtual CPU, the information about all the + virtual CPU dirty limit status can be observed with ``info vcpu_dirty_limit`` + command. +ERST + + { + .name = "cancel_vcpu_dirty_limit", + .args_type = "cpu_index:l?", + .params = "[cpu_index]", + .help = "cancel dirty page rate limit, use cpu_index to cancel" + "\n\t\t\t\t\t limit on a specified virtual cpu", + .cmd = hmp_cancel_vcpu_dirty_limit, + }, |