Struct concread::arcache::CacheStatsDiff

source · [−]

pub struct CacheStatsDiff {Show 19 fields
    pub reader_ops: u64,
    pub reader_hits: u64,
    pub reader_hit_pct: f64,
    pub reader_tlocal_hits: u64,
    pub reader_tlocal_includes: u64,
    pub reader_includes: u64,
    pub reader_failed_includes: u64,
    pub write_read_ops: u64,
    pub write_hits: u64,
    pub writer_read_hit_pct: f64,
    pub write_includes: u64,
    pub write_modifies: u64,
    pub total_ops: u64,
    pub total_hits: u64,
    pub total_hit_pct: f64,
    pub freq_evicts: u64,
    pub recent_evicts: u64,
    pub p_weight: i64,
    pub shared_max: u64,
}

Expand description

Change between two points in time of the usage of the arc.

Fields

reader_ops: u64

The number of attempts to read from the cache since previous.

reader_hits: u64

The number of hits against the cache as a reader.

reader_hit_pct: f64

The percentage hit rate of all accesses to readers. Inverse, the miss rate is 100.0 - reader_hit_pct.

reader_tlocal_hits: u64

The number of hits during all read operations on the thread local caches. If

reader_tlocal_includes: u64

The number of inclusions to the thread local storage.

reader_includes: u64

The number of successful async main cache inclusions through read operations.

reader_failed_includes: u64

The number of failed async main cache inclusions through read operations.

write_read_ops: u64

The number of attempts to read from the write cache

write_hits: u64

The number of read cache hits during all write operations.

writer_read_hit_pct: f64

The percentage hit rate of all accesses to writers. Inverse, the miss rate is 1.0 - writer_read_hit_pct.

write_includes: u64

The number of inclusions through write operations. This does NOT track updates to the main cache, where the updates may change the value.

write_modifies: u64

The number of modifications to the cache content during a write. This does NOT track inclusions, where includes add a new value.

total_ops: u64

The total number of read operations over all transaction types

total_hits: u64

The total number of hits against any cache over all transaction types.

total_hit_pct: f64

The percentage hit rate of all accesses to the cache. Inverse, the miss rate is 1.0 - total_hit_pct.

freq_evicts: u64

The number of items evicted from the frequent set over all time.

recent_evicts: u64

The number of items evicted from the recent set over all time.

p_weight: i64

The change in cache weight between recent and frequent. Trending toward 0 (negative) means demand on recent sets, while increase implies demand on frequent causes a trend to more positive numbers (positive)

shared_max: u64

The maximum number of items in the shared cache.