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downtime: add downtime support

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add downtime support in `resume_all_vcpus_with_downtime`

Signed-off-by: Chao Wu <chaowu@linux.alibaba.com>
This commit is contained in:
Chao Wu 2022-07-06 01:01:39 +08:00
parent 6a1fe85f10
commit 5d3b53ee7b
2 changed files with 16 additions and 0 deletions
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4
src/dragonball/src/api/v1/instance_info.rs
View File

@ -54,6 +54,8 @@ pub struct InstanceInfo {
pub async_state: AsyncState,
/// List of tids of vcpu threads (vcpu index, tid)
pub tids: Vec<(u8, u32)>,
/// Last instance downtime
pub last_instance_downtime: u64,
}
impl InstanceInfo {
@ -66,6 +68,7 @@ impl InstanceInfo {
pid: std::process::id(),
async_state: AsyncState::Uninitialized,
tids: Vec::new(),
last_instance_downtime: 0,
}
}
}
@ -79,6 +82,7 @@ impl Default for InstanceInfo {
pid: std::process::id(),
async_state: AsyncState::Uninitialized,
tids: Vec::new(),
last_instance_downtime: 0,
}
}
}

12
src/dragonball/src/vm/mod.rs
View File

@ -420,6 +420,18 @@ impl Vm {
pub fn resume_all_vcpus_with_downtime(&mut self) -> std::result::Result<(), VcpuManagerError> {
self.vcpu_manager()?.resume_all_vcpus()?;
if self.start_instance_downtime != 0 {
let now = TimestampUs::default();
let downtime = now.time_us - self.start_instance_downtime;
info!(self.logger, "VM: instance downtime: {} us", downtime);
self.start_instance_downtime = 0;
if let Ok(mut info) = self.shared_info.write() {
info.last_instance_downtime = downtime;
} else {
error!(self.logger, "Failed to update live upgrade downtime, couldn't be written due to poisoned lock");
}
}
Ok(())
}