NB! It seems this console command is not compatible with CS2.
Command Profile

SV_QUERYCACHE_STATS

CS:GO

This command prints to console statistics about the query cachhe, including the amount of queries in the cache, the amount missed, and free space.

Syntax
sv_querycache_stats

Description

This command prints to console statistics about the query cachhe, including the amount of queries in the cache, the amount missed, and free space.

Syntax And Arguments

sv_querycache_stats