perfstat_hfistat Interface

The perfstat_hfistat interface returns a set of structures of type perfstat_hfistat_t, which is defined in the libperfstat.h file.

Selected fields from the perfstat_hfistat_t structure include:
Item Descriptor
cycles_blocked_sending The cycles that are blocked from sending.
link_retries The number of retries at the Link Level.
pkts_sent The aggregate number of the packet sent.
pkts_dropped_sending The number of packets that were at the sent first in first out (FIFO), but dropped (not sent), regardless of window.
mmu_cache_hits The memory hits from the Nest Memory Management Unit Cache.
mmu_cache_misses The hits that were missed from the Nest Memory Management Unit Cache.
cycles_waiting_on_a_credit The cycles that are waiting on credit.