ats的ram_cache相關(guān)參數(shù)

ppop123

proxy.process.cache.ram_cache.total_bytes
proxy.config.cache.ram_cache_cutoff

這2個參數(shù)需要改嘛？還是用系統(tǒng)默認(rèn)合適。
我的機器是64G內(nèi)存，硬盤1T空間。

aaaaaa

   # default the ram cache size to AUTO_SIZE (-1) based on cache size
   #   (approximately 1 MB of RAM cache per GB of disk cache)
   # alternatively, set to a fixed value such as 20971520 (20MB)
CONFIG proxy.config.cache.ram_cache.size INT -1
CONFIG proxy.config.cache.ram_cache_cutoff INT 4194304



對你的配置，默認(rèn)的CONFIG proxy.config.cache.ram_cache.size = -1 == 1TB * 1/1000 == 1GB, 這個肯定不是你想要的吧？ 那就自己設(shè)置一個吧。先建議用50%的內(nèi)存測試。

cuteoff是一個線，大約這個線的內(nèi)容，永遠(yuǎn)不會讓它進ram_cache。這個可得根據(jù)你的情況來設(shè)置

ppop123

我的線上的一個正向代理的，內(nèi)存命中率只有0...
proxy.node.bandwidth_hit_ratio=0.162774
proxy.node.bandwidth_hit_ratio_int_pct=16
proxy.node.hostdb.hit_ratio=0.104159
proxy.node.hostdb.hit_ratio_int_pct=10
proxy.node.proxy_running=1
proxy.node.cache.percent_free=0.868574
proxy.node.cache_hit_ratio=0.210684
proxy.node.cache_hit_ratio_int_pct=21
proxy.node.cache_hit_ratio_avg_10s_int_pct=21
proxy.node.cache_hit_mem_ratio=0.000000
proxy.node.cache_hit_mem_ratio_int_pct=0
proxy.node.cache_hit_mem_ratio_avg_10s_int_pct=0
proxy.node.bandwidth_hit_ratio_avg_10s_int_pct=26
proxy.node.bandwidth_hit_ratio_avg_10s=0.257511
proxy.node.http.cache_hit_fresh_avg_10s=79.000000
proxy.node.http.cache_hit_mem_fresh_avg_10s=0.000000
proxy.node.http.cache_hit_revalidated_avg_10s=10.000000
proxy.node.http.cache_hit_ims_avg_10s=8.000000
proxy.node.http.cache_hit_stale_served_avg_10s=0.000000
proxy.node.http.cache_miss_cold_avg_10s=356.000000
proxy.node.http.cache_miss_changed_avg_10s=2.000000
proxy.node.http.cache_miss_not_cacheable_avg_10s=0.000000
proxy.node.http.cache_miss_client_no_cache_avg_10s=0.000000
proxy.node.http.cache_miss_ims_avg_10s=8.000000
proxy.node.http.cache_read_error_avg_10s=0.000000
proxy.node.cache_total_hits_avg_10s=97.000000
proxy.node.cache_total_hits_mem_avg_10s=0.000000
proxy.node.cache_total_misses_avg_10s=366.000000
proxy.node.cache_hit_ratio_avg_10s=0.209503
proxy.node.cache_hit_mem_ratio_avg_10s=0.000000
proxy.node.hostdb.total_lookups_avg_10s=868.000000
proxy.node.hostdb.total_hits_avg_10s=781.000000
proxy.node.hostdb.hit_ratio_avg_10s=0.899770

yychn

回復(fù) 3# ppop123


    加上CONFIG proxy.config.http.record_tcp_mem_hit INT 1 看看，默認(rèn)不統(tǒng)計內(nèi)存命中的