Questions tagged «query-cache»


1
Qcache_free_memory还不满,我得到了很多Qcache_lowmem_prunes
我刚刚开始涉足CMS的查询缓存。 谁能告诉我(或至少提供一个良好的猜测)为什么我得到了很多的Qcache_lowmem_prunes时候有一半以上Qcache_free_memory是免费的吗? query_cache_size=512M query_cache_limit=1M 这是大约12小时后的样子 show status like '%qcach%'; +-------------------------+-----------+ | Variable_name | Value | +-------------------------+-----------+ | Qcache_free_blocks | 10338 | | Qcache_free_memory | 297348320 | | Qcache_hits | 10254104 | | Qcache_inserts | 6072945 | | Qcache_lowmem_prunes | 725279 | | Qcache_not_cached | 2237603 | | Qcache_queries_in_cache | 48119 …
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