BalloonStats

vmm::devices::virtio::balloon::device

Struct BalloonStats 

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pub struct BalloonStats {
Show 20 fields
    pub target_pages: u32,
    pub actual_pages: u32,
    pub target_mib: u32,
    pub actual_mib: u32,
    pub swap_in: Option<u64>,
    pub swap_out: Option<u64>,
    pub major_faults: Option<u64>,
    pub minor_faults: Option<u64>,
    pub free_memory: Option<u64>,
    pub total_memory: Option<u64>,
    pub available_memory: Option<u64>,
    pub disk_caches: Option<u64>,
    pub hugetlb_allocations: Option<u64>,
    pub hugetlb_failures: Option<u64>,
    pub oom_kill: Option<u64>,
    pub alloc_stall: Option<u64>,
    pub async_scan: Option<u64>,
    pub direct_scan: Option<u64>,
    pub async_reclaim: Option<u64>,
    pub direct_reclaim: Option<u64>,

}
Expand description

BalloonStats holds statistics returned from the stats_queue.

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§target_pages: u32

The target size of the balloon, in 4K pages.

§actual_pages: u32

The number of 4K pages the device is currently holding.

§target_mib: u32

The target size of the balloon, in MiB.

§actual_mib: u32

The number of MiB the device is currently holding.

§swap_in: Option<u64>

Amount of memory swapped in.

§swap_out: Option<u64>

Amount of memory swapped out.

§major_faults: Option<u64>

Number of major faults.

§minor_faults: Option<u64>

Number of minor faults.

§free_memory: Option<u64>

The amount of memory not being used for any purpose (in bytes).

§total_memory: Option<u64>

Total amount of memory available (in bytes).

§available_memory: Option<u64>

An estimate of how much memory is available (in bytes) for starting new applications, without pushing the system to swap.

§disk_caches: Option<u64>

The amount of memory, in bytes, that can be quickly reclaimed without additional I/O. Typically these pages are used for caching files from disk.

§hugetlb_allocations: Option<u64>

The number of successful hugetlb page allocations in the guest.

§hugetlb_failures: Option<u64>

The number of failed hugetlb page allocations in the guest.

§oom_kill: Option<u64>

OOM killer invocations. since linux v6.12.

§alloc_stall: Option<u64>

Stall count of memory allocatoin. since linux v6.12.

§async_scan: Option<u64>

Amount of memory scanned asynchronously. since linux v6.12.

§direct_scan: Option<u64>

Amount of memory scanned directly. since linux v6.12.

§async_reclaim: Option<u64>

Amount of memory reclaimed asynchronously. since linux v6.12.

§direct_reclaim: Option<u64>

Amount of memory reclaimed directly. since linux v6.12.

Trait Implementations§

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impl Clone for BalloonStats

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fn clone(&self) -> BalloonStats

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BalloonStats

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for BalloonStats

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fn default() -> BalloonStats

Returns the “default value” for a type. Read more
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impl PartialEq for BalloonStats

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fn eq(&self, other: &BalloonStats) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for BalloonStats

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Copy for BalloonStats

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impl Eq for BalloonStats

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impl StructuralPartialEq for BalloonStats

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