trafficserver-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Nguyen Hai Nam <nam...@nd24.net>
Subject Too small amount of Cache Hits
Date Wed, 19 Oct 2011 10:59:22 GMT
Hi,

I'm testing ATS works as forwarding proxy, after few hours, I found the 
number of Cache miss was too high:

$ sudo ./traffic_logstats -s | grep Cache
Cache hit                                 15      0.24%    243.13KB      
0.21%
Cache hit IMS                             10      0.16%      1.92KB      
0.00%
Cache hit refresh                        123      1.97%      8.48MB      
7.42%
Cache hit other                            0      0.00%      0.00KB      
0.00%
Cache hit total                          148      2.37%      8.72MB      
7.62%
Cache miss                             4,918     78.90%     77.91MB     
68.13%
Cache miss IMS                           829     13.30%    869.13KB      
0.74%
Cache miss refresh                        14      0.22%     32.70KB      
0.03%
Cache miss other                           0      0.00%      0.00KB      
0.00%
Cache miss total                       5,761     92.43%     78.79MB     
68.90%

My records.config

CONFIG proxy.config.http.cache.ignore_client_no_cache INT 0
CONFIG proxy.config.http.cache.ims_on_client_no_cache INT 0
CONFIG proxy.config.http.cache.ignore_server_no_cache INT 0

CONFIG proxy.config.http.cache.required_headers INT 2
CONFIG proxy.config.http.cache.max_stale_age INT 604800
CONFIG proxy.config.http.cache.range.lookup INT 1

In the logging, found some static contents was cached, eg. 
http://pastebin.com/vV9MRCLF but others was not.

Can somebody help me figure out what is my problem please?

Additional, I defined 1GB Ram cache

CONFIG proxy.config.cache.ram_cache.size INT 2147483648

but I see not much RAM was used, could I prefer Ram cache than Disk cache?

Thank you and best regards,
~ Neddy



Mime
View raw message