How're you loading the data? >From the stats it looks like you're probably overwriting the same values over and over (high total_items but low curr_items and no get_expired)
On Wed, 28 Apr 2021, Qingchen Dang wrote: > Hi, > I am trying to test my optimization of Memcached eviction, but it seems even > though I got a lot of misses, the evictions stats is always 0. > Here is the stats for the original Memcached without any change. I wonder > what memcached config/benchmark config can make eviction happen? > > STAT pointer_size 64 > > STAT rusage_user 110.668826 > > STAT rusage_system 769.767632 > > STAT max_connections 1024 > > STAT curr_connections 2 > > STAT total_connections 8004 > > STAT rejected_connections 0 > > STAT connection_structures 402 > > STAT response_obj_oom 0 > > STAT response_obj_count 1 > > STAT response_obj_bytes 131072 > > STAT read_buf_count 16 > > STAT read_buf_bytes 262144 > > STAT read_buf_bytes_free 114688 > > STAT read_buf_oom 0 > > STAT reserved_fds 40 > > STAT cmd_get 72720000 > > STAT cmd_set 7280000 > > STAT cmd_flush 0 > > STAT get_hits 626512 > > STAT get_misses 72093488 > > STAT get_expired 0 > > STAT get_flushed 0 > > STAT delete_misses 0 > > STAT delete_hits 0 > > STAT incr_misses 0 > > STAT incr_hits 0 > > STAT decr_misses 0 > > STAT decr_hits 0 > > STAT bytes_read 1809568092 > > STAT bytes_written 459401348 > > STAT limit_maxbytes 2097152 > > STAT accepting_conns 1 > > STAT listen_disabled_num 0 > > STAT time_in_listen_disabled_us 0 > > STAT threads 8 > > STAT conn_yields 0 > > STAT hash_power_level 16 > > STAT hash_bytes 524288 > > STAT hash_is_expanding 0 > > STAT slab_reassign_rescues 0 > > STAT slab_reassign_chunk_rescues 0 > > STAT slab_reassign_evictions_nomem 0 > > STAT slab_reassign_inline_reclaim 0 > > STAT slab_reassign_busy_items 0 > > STAT slab_reassign_busy_deletes 0 > > STAT slab_reassign_running 0 > > STAT slabs_moved 0 > > STAT lru_crawler_running 0 > > STAT lru_crawler_starts 4 > > STAT lru_maintainer_juggles 101778 > > STAT malloc_fails 0 > > STAT bytes 94437 > > STAT curr_items 909 > > STAT total_items 7280000 > > STAT slab_global_page_pool 0 > > STAT expired_unfetched 0 > > STAT evicted_unfetched 0 > > STAT evicted_active 0 > > STAT evictions 0 > > STAT reclaimed 0 > > STAT crawler_reclaimed 0 > > STAT crawler_items_checked 2732 > > STAT lrutail_reflocked 12 > > STAT moves_to_cold 116840 > > STAT moves_to_warm 3185 > > STAT moves_within_lru 538 > > STAT direct_reclaims 0 > > STAT lru_bumps_dropped 0 > > > Thanks! > > QD > > -- > > --- > You received this message because you are subscribed to the Google Groups > "memcached" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to memcached+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/memcached/95e1a261-7ad5-49c2-a917-0635b7e3cbbfn%40googlegroups.com. > > -- --- You received this message because you are subscribed to the Google Groups "memcached" group. To unsubscribe from this group and stop receiving emails from it, send an email to memcached+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/memcached/e274ce6a-63ab-2896-d7c0-befa57222a%40rydia.net.
