Caching Stackdump

Onload User Guide (UG1586)

Document ID

UG1586

Release Date

2023-07-31

Revision

1.2 English

Onload stackdump can be used to monitor caching activity on Onload stacks.

# onload_stackdump lots [| grep cache]

Table 1. Onload_stackdump Cache Counters
Counter	Description
`active cache: hit=0 avail=0 cache=EMPTY pending=EMPTY`	TCP socket caching: hit = number of cache hits (were cached) avail = number of sockets available for caching current cache state
`sockcache_cached`	Number of sockets cached over the lifetime of the stack
`sockcache_contention`	Number of sockets not cached due to lock contention
`passive_sockcache_stacklim`	Number of passive sockets not cached due to stack limit
`active_sockcache_stacklim`	Number of active sockets not cached due to stack limit
`sockcache_socklim`	Number of sockets not cached due to socket limit
`sockcache_hit`	Number of socket cache hits (were cached)
`sockcache_hit_reap`	Number of socket cache hits (were cached) after reaping
`sockcache_miss_intmismatch`	Number of socket cache misses due to mismatched interfaces
`activecache_cached`	Number of active sockets cached over the lifetime of the stack.
`activecache_stacklim`	Number of active sockets not cached due to stack limit
`activecache_hit`	Number of active socket cache hits (were cached)
`activecache_hit_reap`	Number of active socket cache hits (were cached) after reaping